Profile pipe bender do it yourself: drawings and tips on the manufacture. How to bend a profile tube for greenhouses: the simplest ways and rules for the manufacture of blanks Using a manual profile profit

The need for flexion of profile pipes in the household occurs quite often, whether it is the preparation of blanks for building metal carcass Greenhouses or canopy or manufacture of parts of a complex configuration pipelines. For this, the adaptations of industrial manufacture are often used, but purchased products - the pleasure is not cheap. It is much more profitable to make pipe bender with your own hands, especially since there will be no scarce parts for the manufacture of an aggregate, and its design is available for repetition in any garage. A homemade adaptation will allow the pipe with the desired radius of curvature and at the same time avoid deformations and chances on its surface.

Purpose and species

Pipe bender is an indispensable device when it is necessary to delicately and accurately bend a round or profile metal pipe

The bending of metal profile pipes is directly connected to their diameter, wall thickness and manufacturing material, so metal producers always indicate the minimum deformation radius in special tables.

Table of calculation of radii bending of steel pipes depending on the diameter and thickness of the wall

Bend the hollow tube without chances and deformations is not easy. At home, it is filled with sand for this, heat up to redness with a gas burner or a soldering lamp, after which "on the eye" is bent. Of course, such a method with high difficulty is not ideal due to low quality and low accuracy.

Get the bend of the required curvature and not damage the item allow special devices - pipe bending. Depending on the length of the fragment, which must be bent, apply the devices of two types:

• lever pipe bending;
• rate aggregates.

The most common products are lever-type pipe begins. In such devices, the force is applied in the right place, and the bend itself repeats the shape of the segment (template), which in terms of devices can be removed. As a rule, the package of such aggregates includes several segments for pipes of different diameters. In addition to segment devices, industries are produced by dorn and arbal pipe bending, the bend shape in which is set by two guide rollers and a pressure pattern (Dorny). This design allows the cold processing of round steel pipes in short areas. By the way, compact arbal tube benders are the most popular tool for engineering communications installers.

Simply, quickly and efficiently - this is the advantages of the arbal pipe bending, which attract professional installers

Depending on the design of the lever bending device, it can have a drive of any type:

• hydraulic;
• pneumatic;
• electric.

Often, the principle of operation of the unit provides for the heating of the pipe (external, or with the help of heated air transmitted inside the rolled), which seems to increase its plasticity, and, accordingly, the quality of the curved area.

If necessary, get the bending of a large radius use rolling fixtures. Their construction includes two guides and one pressing shafts (rollers). The pipe is stretched between the moving elements, setting the degree of bending with force of the presser roller. If it is necessary to obtain a large radius curvature, the procedure is repeated.

Rolling fixtures can have electrical transmission for guide shafts, as well as hydraulic, mechanical or pneumatic pressure of the pressure roller.

Designs of homemade adaptations

The simplest option available for most novice masters is the bending of pipes on a pre-made template. Such a method is used if necessary to obtain a large number of similar blanks.

Bending pipes on a wooden pattern - the easiest way to solve the problem

As a template, you can use a design made of wooden boards. The thickness of the wood is chosen on the basis of the diameter of the flexible pipes - the board must have a reserve in 2-3 cm. So that in the process of operation, the metal turns do not sculpted from the template, the ends are treated with a small slope.

The design is fixed to the floor or other surface in any way by mounting the stopper for the pipe. By inserting the profile in the gap between the template and the thrust element, smoothly and gently pressed onto its other end, pressing the pipe to the template. In order to facilitate the pressure of the press, you can use the suitable lever to fit or adapt the winch.

The winch can facilitate the process of flexing pipes using a template

This method can be flexing metal diameter metal. If you want to change the configuration of the pipe of more than 1 inches, the template is equipped from segments of powerful fittings. To do this, in the concrete slab along the required trajectory, the holes are made in which the guides in the form of pins are inserted from segments of pipes, reinforcement, etc. The bending is performed by fueling the edge of the metal pump with welding.

The advantage of this method is its low cost and simplicity, however, the accuracy of the billets and the quality of their processing leaves much to be desired. In addition, the pattern will have to make every time you need to get the bending of another radius.

Trubbib-snail factory manufacture

For the manufacture of a large number of single-type billets of a small radius of curvature, a snail tube bender can be used. This unit is two pulleys (wheels) of different diameters, fixed on the shafts. Fixing the end of the pipe on the handwheel, the roller of a smaller diameter (the drive wheel) is pressed on the workpiece, simultaneously rolling it along the workpiece. As a result, the pipe envelopes the surface of a large pulley, repeating its shape. The only disadvantage of this method is the impossibility of producing a large radius.

The most versatile and practical are homemade rolling pipe bending (bending machines), in which any angle of deformation of metal rolling can be installed. The simplest design of the rolling unit is the base with the drive shafts attached at a certain distance from each other. The pressure on the pipe is carried out by a moving roller, and its broach is carried out due to the rotation of the leading shafts. Screw fixtures, jacks, winchs and electric motors are used as a force actuator such devices. The rolling machine is the most difficult for repetition at home, since it requires turning and welding work. Nevertheless, there are many variations of its designs made by lovers, which indicates the high popularity of this solution. Using such a device, the bend is obtained by any configuration, and the process itself will often automate. The only thing that such a device cannot cope is to obtain the minimum radius of the rounding of metal products on a small segment.

Video: homemade rolling machine bending machine

Do pipe bender do it yourself

For the manufacture of pipe bending, you can use the drawings of the finished structures. Looking at several options and commended the complexity of the aggregates with their capabilities and the presence of the necessary parts and materials, you can choose the most optimal scheme. We present two models of pipe bending for self-assembly - a manual unit for small pipes and a semi-automatic bending machine.

Manual pipe bender snail for small radii

To properly bend profile tube, you need to understand well the physics of the process. In manual pipe bending, the method of circular bending is most often used, which avoids the risks associated with the chances, cracks and other pipe damage. To bend the metal in such an unit, it is enough to fasten the workpiece in the device and click on the lever. Flexion occurs when rolling through the roller pipe, pressing the item to the main wheel.

Materials and tools

For the manufacture of manual pipe bending, you will need:

• metal sheet with a thickness of at least 6 mm;
• working wheel;
• pressing roller
• steel corners 50x50x2.5 mm;
• catch of thick-walled pipe Ø25 mm;
• axis of rotation (sleeve or bearing node);
• cut of a square bar 20x20x40 mm;
• nuts and washers;
• angle grinder;
• welding machine;
• a hammer;
• measuring tool.

During the work, do not forget about the safety technique. This is especially true of working with cutting and welding equipment.

Calculation of pipe bender and drawing up the drawing

Before proceeding to work, it is necessary to determine which radius of the bending of profile pipes will be most in demand. Depending on this, choose the size of the impeller. It is this value that will correspond to the internal radius of the resulting knee.

Pipe bender snail assembly

The drawing is designed for profile pipes with a diameter of up to 1 inches. Bending radius, which can be obtained using this pipe bender, is 125 mm (half of the diameter of the impeller). If you need an aggregate for bending with other parameters, use the method of calculating the size of the pipe-bender.

The main size of the pipe-bender fork is the distance between the operating wheel axes and the roller (designated by the letter A \u003d 200mm). In our case, the mid-sized interval is selected taking into account the maximum size of the treated profile pipe D \u003d 25 mm, however, it is desirable to add a couple of millimeters "about the supply" to this value.

The inter-axes can be determined by the formula A \u003d D + R1 + R2 + 2, where D is the diameter of the profile pipe, and R1, R2 are the radii of the impeller and the roller, respectively.

If a roller and a wheel with a flexible (some kind of streaming pulley) are installed in the design of the bending device (some kind of streaming pulley), then the measurement is carried out by repeling from the lower point of this part.

Snail pipe

To determine the size of the plug, the gap between the roller and its base is taken equal to 10 mm, as well as add 30 mm of reserve for fastening the axis of the impeller.

Fork length C \u003d A + R1 + 10 + 30 (mm).

To determine the inner gap between the side shelves of the fork (B), 1 - 2 mm is added to the wheel thickness.

Make pipe bending more versatile, drill a few holes in the side surfaces of the plug. Rearming the roller axis, change the distance between the working surfaces of rotating parts.

Step-by-step instructions for the manufacture of manual pipe bending

According to the drawing of the manual bending unit, it can be seen that it consists of several main parts:

• base in the form of a thick metal plate;
• working wheel;
• roller;
• fork.

Our instruction will help to perform work consistently, avoiding errors and inaccuracies.

1. Make an impeller and roller. Of course, a huge advantage will be the presence of a lathe in your workshop, but even if you do not have such equipment, these parts are not a problem. Any turner will be able to sharpen the pulleys at quite a reasonable value.
   In the manufacture of moving elements should not save. Be sure to make it a bile under the pipe of the maximum diameter, as well as deposit the socket under any suitable rolling bearing. If there is a need to change the configuration of the knee surface, the handwheel or roller make figure. When rolling the roller will leave the desired imprint on the outer surface of the knee, and the wheel - on the inner. To facilitate the task task and even stronger the cost of the device, instead of the roller you can install a couple of ball bearings of a suitable size.

   Working wheels of pipe-bending can be made with an arbitrary configuration

   The image clearly seen instead of the ball bearings instead of the roller

2. On the same machine you need to make axes for the impeller and roller. The thickness of the parts is taken equal to the internal diameter of the selected bearing. The length of the roller axis is equal to the width of the fork along the external dimensions. The axis of rotation of the impeller will be slightly longer because they will have to take into account the thickness of the base bending plate. Rebuilding the mounting of bearings, you can significantly simplify the design. In this case, the axes can use long bolts with nuts. However, it should be understood that the flexing of the pipes will be harder to be flexing.

   For the manufacture of the plug it will require a metal thickness of at least 6 mm

3. From the sheet metal, the side surfaces and the rear wall (base) of the fork, as well as the segment of a thick-walled pipe as a lever.
4. According to the drawings, the holes are drilled under the axis of the wheel and the roller.
5. Weld the details of the fork. Particular attention should be paid to all direct corners of this design element.
   

   Fastening the lever to the fork of jack will be unreliable due to the large effort applied. Best of all in her back wall make a hole in which the edge of the pipe will enter. Obrawing is a welding connection, the maximum durable junction is obtained.

6. Using the grinders, the base (bed) of the device is cut out and the hole is drilled in it for the stationary axis of the impeller.
7. If necessary, the bearing is pressed into the video.
8. The roller is inserted into the fork, after which it is fixed with welding or nuts.

   Truck Trubbing Snail Assembly

9. The plug assembly is installed on the base, consolidating the axis of the impeller in the same way as when mounting the roller.
10. We weld the segment of the square section as the retainer of the processed pipe.

In the corners of the base bending, drill holes for fastening the device to the workbench. To make the device not only functional, but also aesthetic, in the process of work, we must clean the places of welding connections and the vindrious circle processes the sharp edges of the blanks. In order to protect against rust, the finished product is painted enamel.

Bending machine for profile pipes

The bending of long profile pipes requires not only effort for their deformation, but also a mechanism for broaching parts for the desired distance. Often, the design of home-made bending machines is used not screw, but a jack or a winch, and the drive includes an electric motor.

Drawings of homemade devices

Bending machine. Side view of a pipe bender with a top roller drive tube with a variable distance between the rollers. The simplest tube bender is pulled

In presented on drawings of bending machines, a threaded transmission is used to pressed the roller. We will use a hydraulic jack in our design, as well as manual drive using parts from the gas distribution mechanism of automotive internal combustion engines.

Tools and materials

In order to start work, prepare such details and materials:

• corners for machine bed;
• round or profile tubes for frame;
• working and puller shafts (rollers);
• jack;
• springs;
• chain gear;
• tensioner;
• bearing supports assembly with bearings;
• a pen;
• fastening channel;
• bolts and nuts.

You will need a manual and electric plumbing tool:

• corner grinder (Bulgarian);
• welding machine;
• electric drill and set rolled metal;
• a hammer;
• wrench kit;
• measuring tool.

Do not neglect personal safety. When working with the grinder, it is necessary to use a protective flap or glasses, and welding processes to carry out in dense overalls and special gloves. It should be remembered that it is forbidden to work without a welding mask and carry out electrical installations on the wet surface and in the rain.

Manual for the manufacture of a bending machine

The separation of the process of manufacture of pipe-bending into several stages will help more clearly organize work.

1. Make a broach (reference, drive) and push (working) shafts. In the absence of skills, working with a turning machine will have to turn to a specialist. Be sure to remind the turner so that it will turn over the rollers with shanks to install the stars. Best of all, if you take these details with you.

   The design of the shafts should provide for the possibility of installing drive stars

   Stars and chain can use any. For example, from the gas distribution mechanism of engines of passenger cars.

2. Secure the bearing supports on the shafts and set the drive gears on the knaps.

   In the design of the machine, you can use drive weakens and bearing supports from automotive equipment

3. Make using welding machine Frame bending machine. To do this, first make a square frame with support legs, and then mount the structure on which the plate with a pressure roller will be moved.

   Production of a bending machine

4. A steel P or n-shaped channel is used as a stove. For mounting the pressure shaft along the edges of the plate drill holes attachment Bearing supports.

   Framework for the installation of the support plate

5. The segment of the channel with a roller is suspended to the top of the frame on four springs, for which the nuts are welded in the corners of the plates and the frames as mounting loops. After that, the hydraulic jack is mounted.

   Installation of the clamping tree

6. Install and attach the drive shafts to the bottom frame. In the profile on which they are installed, drill several holes to dispense the rollers to the center. This will make it possible to more accurately change the bending radius if necessary.

   Installation of drive chain and tensioner

7. Take a handle to rotate the shafts of the bending machine.
   It is advisable to use the handle on which the rotating tube will be installed. It will make it easier to work with the machine and keeps hands from corns.

   Paint prevents corrosion and ensures the aesthetics of the structure

After completion of work, it is proceeded. For this, the metal profile is placed on the drive shafts and the jack is pressed the working roller to the surface of the workpiece. Rotating the handle, the shafts give the move, after which the metal turns passes between the lower and the upper shafts and acquires a curved shape. The machine is tested on various materials, establishing a different degree of pressing the top shaft. After that, make a conclusion about the features of the operation of the pipe-bend and its suitability for work.

Video: Design do it yourself

Variations of homemade pipe bending in the photo

There are many variations presented above the pipe bending, which are made by masters at home. Some of them are represented in our photo gallery.

Small semi-automotive pipe bender from a car jack and a compact electric motor Bending machine with a screw clamp Bending device made of primary means Compact pipe bender-snail Bending machine with lower drive Pressure roller from a hydraulic jack Machine with hydraulic jack

Thanks to the versatile hobbies, I write on different topics, but the most beloved - technique, technology and construction. Perhaps because I know many nuances in these areas not only theoretically, as a result of study at a technical university and graduate school, but also from the practical side, since I try to do everything with your own hands.

The length of the trolley is 110 cm, the width is 75 cm, the platform height is 35 cm, the total height is 100 cm (taking into account the handle).

The base of the trolley is a platform, the frame of which is made of steel pipes of square (or round) cross section. The ends of the handle curved out of the round tube are inserted into the longitudinal pipes of the cart frame, while the length of these ends is almost equal to the length of the longitudinal pipes of the frame, which makes it possible to push the handle from the frame, the "extension" thereby the trolley. In one or another position of the handle, its ends are fixed in the pipe pipes by retaining screws.

With the help of a household welding machine that allows you to weld steel sheets with a thickness of up to 4 mm, it is welded to the frame from steel corners, creating additional supports for the upper coating of the cargo platform, manufactured either from 0.5 ... 0,6 mm sheet steel, or From thin boards. Next to the frame, reinforced corners, welded durable brackets (Fig., 3, B), curved from sheet steel with a thickness of 2 mm (such brackets can be welded from individual steel blanks).

Each wheel of the trolley consists of two duralumin or steel discs, pulled with a secret screw screws. Buries are provided on that and other discs, which when connecting disks into the wheel form circular grooves on the rim. This groove is

it will hold on the wheel on the wheel on it the rubber ring from the gas cylinder, of course, provided that the inner diameter of the rubber ring is slightly smaller than the diameter of the wheel, that is, the ring will wear on the wheel tightly, without clearance. In each wheel, two bearing are installed, in the latter, a steel axis with a diameter of 16 mm with threads in both ends is inserted into the last without gaps. The wheel is installed in the brackets, fixing the axis and nuts in them (Fig. 3, d).

Two-wheeled all-terrain truck, which is not terrible ditch, potholes, stones and other irregularities on the road, can also be built (Fig. 4). Sample trolley dimensions: length 130 cm, width 65 cm, height 70 cm. This cart is intended for the carriage of goods weighing up to 200 kg in the area of \u200b\u200bthe garden plot (approximately within the 400 ... 500 m radius).

Frame of the cargo platform of the trolley is made of steel water pipe With an outer diameter of 22 mm. Actually the platform form the same pipes located across the frame (the latter is fixed with welding). Both ends of the steel pipe in which the axis (shaft) of the carts are inserted, weld to the continued frame pipes using a support from pipes bent under an acute angle.

Wheels for trolley - homemade. Each of them consists of two

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Trolley "Increased Patency"

Pipe bender for the profile pipe is very popular equipment on the market. It is used in different fields of industry, housing and communal sphere and other directions. To save on the purchase of the device, you can make it yourself. However, for this you need to explore the device, the principle of its work and features. In addition, you need to have an instruction in hand to manufacture and carefully carry out all the necessary requirements.

Only with the help of a pipe bender you can bent the profile pipe without deforming it

Main characteristics

Pipe bender for the profile pipe is a special equipment in the form of a machine, intended for bending pipes with rectangular, square and other sections.

Modern equipment of this kind is able to provide several tasks at once:

• pipe bending at any angle, up to 180 degrees;
• processing of pipes of various diameters (it can vary in the range from 5 to 1220 mm);
• deformation of pipes of various manufacturing materials (they can be metallic - from aluminum, steel, cast iron; or plastic - from PVC, PND, PVD, etc.)

If plastic pipes can be bent and without the use of professional industrial pipe bending, then if they are made of metal, without such a device it is not done.

There are three solutions to equipment problems: buy a product, rent or make it yourself. If there is not a lot of work, the purchase of equipment will be inappropriate. But even if it is necessary, the purchase of the device is very expensive. Therefore, many prefer to make pipe bending machines for profile pipes on their own.

Scope of application pipe bend

The adaptation under consideration is widely used in various fields of industry and national economy. This and construction, oil and gas industry, production of plumbing, the sphere of housing and communal services, and also use it for household needs. It can be the manufacture of garden furniture, canopies, arbors, etc.

Using pipe bending, you can create a variety of designs from profile pipes.

However, most often this equipment is used to deform and flexing pipes when laying pipelines or building buildings (when profile pipes are used as part of the reinforcement structures). Pipe products can have a variety of shape and material, but in any case, the pipe bending machines must be used to flex.

Need to know! Such a factor as the scope of use is very important for the process of bending. After all, the pipes are different in volume, diameter and material are bend differently, and for this requires instrument different power and technical properties. Depending on this, the instrument can be manual, on an electrical or hydraulic drive.

Classification of devices

As mentioned above, pipe bending machines are several species. They differ in configuration, the principle of action and, as a result, in price categories.

The main types of devices are the main.

Hydraulic. Such a pipe bender of the profile pipe must be used if you do not do with your own hand and simple manual instrument. It is certainly different in price, however, has more advantages. Among them:

• high deformation rate. Working from the network, such a fixture for flexible profile pipes has a greater power and performs the tasks much faster than the manual analogue;
• accuracy when installing the bend angle. That this species differs from the previous one. Using the device on the hydraulic drive, you can bent the pipe under the required angle with an accuracy of degrees;
• easy to manage and maintain. Simple device design provides easy operation and easy repair;
• small cost of operator forces. You do not have to apply great physical effort to give a pipe product of the desired form;
• mobility. The equipment is also easily moved, as well as the previous analogue considered;
• universality. If the simple device on manual control is not able to work with some type of pipe products, then this type of device is quite powerful to bend steel, even if the pipes are not very small diameter.

Hydraulic pipe bending are hand-held and electrical, the last type is more often used in production.

On electric drive. Such devices have a greater power, the accuracy of adjusting the bend angle, however, are the most expensive.

According to the method of bending, devices are also separated by three classes:

• arblet, with the help of which the bending occurs by using the form of a certain diameter;
• manual springs working through powerful springs;
• segment, which are a segment of wood or other dense material with mounted on it, around which the pipe is bent.

Manual. The cheapest and simple look. This is a mobile device with small dimensions and weight. In addition, make such a pipe bender for the profile pipe with their own hands much easier and cheaper. However, he has enough restrictions. This cannot be applied if the volume of work is large and regular frequent use of the device is required. In addition, the process of bending will take longer and forces, and it is possible to use such equipment only to deform aluminum, plastic pipes, as well as steel with a small diameter of the cross section.

Manual pipe bender: manufacturing at home

Among the owners of garages and private country sites, the question often arises how to make pipe bending for the profile pipe itself? This problem is very common, because the finished devices are at all expensive and acquiring them, the owner is not always confident in good quality. In this case, the manufacture of pipe bending for the profile pipe with their own hands is a real solution.

Despite the simplicity of design, the most primitive pipe bends provide sufficiently high-quality pipe treatment

If the volume of work is not too large, then the best option will be hand-made pipe bending for the profile pipe.

Important! Remember that manual fixture is an unprofessional option, and it is suitable for use on the case of the case, regular and substantial loads cannot be done.

The cheapest and elementary option is a simple hand tube with your own hands. To make it, you will need only three components: concrete plate, Metal pins and perforator.

The algorithm for the installation of the details of the manual pipe bending for the profile tube with their own hands is extremely simple: concrete base We divide on the 4x4 cells or 5x5 centimeters. At the corners of the cells formed, it is necessary to make holes (driving them as deep as possible) with a perforator, and then install pins in them.

The resulting equipment for flexible diverse profile pipes works on a simple principle: the billet of the pipe product is placed between the pins and bend, applying a physical force under the desired angle.

Of course, ideal accuracy when using so simple pipe bending for the profile pipe made by your own hands, not to achieve, but for household purposes it is more than enough.

Manual pipe bends of more complex designs

If your hardware requirements for flexible pipes are higher, then such a simple option can not do. In this case, it is recommended to resort to more complex devices.

You can collect pipe bending for the profile pipe with your own hands, which will work on the basis of the jack. To make it, you will need a hydraulic jack, pins and a reliable base.

Pipe bending pipe bend on the basis of a jack is made using a shoe, the size of which must correspond to the diameter of the product being processed

Helpful advice! The jack used as the main element must withstand the loads of 5 tons so that the equipment will light up long and without breakdowns.

There is a more complex third option - a device on a chain drive, driven by handle. Such a pipe bender with your own hands is also quite simple. It is more convenient in management and a little more productive.

For the manufacture of this homemade pipe bending for profile pipes, you need: metal base of the P-shaped, clamp, three rollers, chain and winch.

It is not difficult to collect this pipe bender with your own hands and for this you will not need a lot of time. Actions are:

• first on the metal base attacks the design of the P-shaped;
• on both sides of it, two rollers are installed, and then the third (according to the shape of an equilibrium triangle);
• a chain with a winch is installed on the rollers.

Pipe bender on a chain drive will allow working with high-sized pipes without much effort

A welding machine is used to connect nodes.

How to make hydraulic pipe bender

Hydraulic apparatus is quite powerful equipment. It is possible to process steel pipe products with relatively large diameters, compared with the manual analogue.

However, the manufacture of pipe bending for the profile pipe with their own hands in this case will require much more effort and time.

So, to make such a machine, you will need:

• flat base;
• p-shaped metal base;
• feed shaft;
• pulley;
• chain;
• hydraulic rod.

The design of the device for flexing the profile pipe made by their own hands is reminded by rolling mill, only a more complex and principle of its work is slightly different. Instead of manual drive, a hydraulic rod is used.

How to make pipe bender from these parts for a profile pipe with your own hands?

• first install the shaft on the base. Then, on the first end it is mounted by pulley, and on the second - the chain. Now I mount the second shaft, connect the chain with the first;
• below, cut the hole for the movement of the rod and set the third roller - deforming;
• the shaft of this roller is located in the grooves of the base.

Attention! The foundation homemade machine For flexible profile pipes, there should be a trapezoid form if you do not use a p-shaped plug with woven legs (you can use the cuts of pipes or sewners).

Rolling machine for flexible pipes on their own

The machine for bending of different profile pipes is a rather complicated device. The manufacture of such a car will require big attention and good skills. It is better, of course, to purchase a ready-made product, however, if you are confident in your abilities, you can make such a pipe bender with your own hands.

Rolling machines are characterized by complex design, but they are indispensable for large amounts of work.

First prepares the base made of metal parts using a welding machine. After it is installed 4 reference elements. Now you can make holes for adjusting the bend radius.

Then the jack is mounted. For this, bolts and plates are used.

Now we install the remaining details: winch and rollers (as in a simpler design, discussed above), engine and gearbox, as well as jumper.

After that, remained final stage - Production of the so-called fungus. To do this, you can bring in any building store a pipe, curved by 90 degrees. This detail is installed on top of the body of the device.

If necessary, the machine for flexible (square, rectangular) pipes can be made independently. The complexity of the design and costs for accessories to it will depend on the purpose of the apparatus and its frequency of its use. It is also important how to create work on the assembly. The accuracy of actions depends the reliability and performance of the device as a whole.

Pipe bender for the profile pipe with their own hands without excess costs

Pipe bender for the profile pipe with their own hands: the main characteristics of the device, classification in all parameters, methods of manufacturing yourself.

How to make pipe bender do it yourself - drawings, photos

Make your own homes or even professional pipe bending in order to be able to bend pipes at a given angle and, more importantly, with a given bend radius, is not so difficult.

Do it yourself pipe bender is not so difficult

Contrary to the common belief that most often this adaptation is used in the implementation of sanitary work, in such cases, various fittings and taps are usually used - pre-bent pipe segments manufactured in industrial conditions. However, for the use of taps there are limitations that are determined by their standard characteristics:

• turning angles (may be 45, 60, 90 and 180 degrees);
• bend radii (outlines with bending radii 1.0 do and 1.5 do);
• use welding.

Not in all situations such parameters are able to satisfy those who need to give the design of the pipes required. It is in such cases that the mechanical pipe bender (or hand-made pipe bending) is reversed.

Without a machine for flexing steel pipes, it is not for the owners of cottages and private houses that are going to independently make various arched structures, greenhouses, fences non-standard form and much more.

In this article, we will thoroughly analyze how to make pipe bending with your own hands. After all, home-made pipe bending can be used not only at home, but also in semi-professional activity, since its design is not capable of excellent complexity, and serial devices for flexing pipes are quite expensive. Therefore, making hand-made pipe bending with your own hands, you will save a lot of money.

Two pipe bending: with manual and electrical drive

Classification of pipe flexing devices

Devices for flexible steel pipes are classified:

• according to the degree of mobility (stationary and portable);
• by the type of drive (manual, electric, hydraulic, electro-hydraulic);
• by the way of exposure (run-in (roller), winding, exposure to stock (arbalt), rolling).

The essence of the effects of pipe-bender on the pipe is as follows.

With this method, one end of the pipe is clamped, and a fixed pattern is used to give it the desired bending. For running through the product around the template, clamping rollers are used.

Drawings of the hard tubebib

In such a device, the pipe is pressed against the rolling pattern (roller), to which it is winding, stretching between the rotating roller and the special focus installed at the beginning of the gib's point.

Scheme of pipe-bending, working on the principle of winding

In such a pipe bender, the pipe relies on two fixed rollers, and the bending performs the template that is fixed on the moving rod. The template presses on the middle of the fixed section of the pipe, thereby giving it the desired bend angle.

Arblet pipe-loading scheme: 2 - Dombrarat, 3 - Bashmak (Punson)

The required bending radius is obtained using a trivial device, the basis of the design of which is two supporting and one central roller. The pipe is performed on the pipe, the position of which is the position of which determines the radius of its bend. Rolling tube is more versatile, in all other machines, the bend radius depends on the template used.

Handmade rolling tube compact sizes

The manufacture of a pipe-bender operating on the principle of winding is not characterized by simplicity, so such a device is made mainly in an industrial method. The arbalt method has another significant disadvantage: the pressure from the row with the template attached on it, which is called the shoe, is concentrated in its upper part. This method of exposure to the pipe leads to its significant stretching along the outer radius of bending, which can be accompanied by a decrease in the wall thickness and even its rupture. It is not particularly recommended to use an arbal method for flexible thin-walled products.

Example of self-made pipe bender rolling (roller) type

The machine operating on the principle of rolling (rolling) practically does not have all the above disadvantages, such technology is used in the production of taps in the factory conditions.

Machine for flexing pipes made with your own hands can have a different design. You should choose its type on the basis of which radius of the bending of the steel pipe you need. There is a list of recommendations according to which the specific model of the device for flexing steel pipes is selected. Important parameters that need to be taken into account is the thickness of the pipe walls and its shared diameter. Before starting work with a pipe bender, it will not hurt to read the table data displaying the maximum possible radii for bending steel pipes.

The dependence of the bending radius from the diameter and thickness of the pipe walls

To obtain the bend radius smaller than specified in such recommendations, it is necessary to use dorn pipe bend or a hot rolling rolling, which is used mainly in production conditions. The device with darny is more difficult to create at home, so they are much less and less often, giving preference to roller.

In order to independently perform hot rolling of the pipe, you can resort to the use of pipe-bending made with your own hands, but provided that it is fully made of metal, and its bed is distinguished by high reliability. To perform such a technological operation, you will additionally need a soldering lamp or gas burner.

Manufacture of the simplest tube of template type

A simple rolling machine for flexible pipes can be made even from wood. Naturally, it will be a manual pipe bender, in the design of which you can not even provide for the pressure roller if it is used for thin-walled products. The template for such a device is made of a wooden board, the thickness of which should be such as to exceed the diameter of the pipe itself.

Wooden template for the simplest handpipe

For the convenience of work it makes sense to pose profiling pattern from its end, in order to avoid jumping the pipe in the flexion process. For these purposes, two boards can be folded, which pre-cut on one face, thus creating a kind of chute. Made pre-executable drawing will help avoid errors.

When using such a pipe bending, the pattern is fixed to a reliable base, and on the left side of it (for the right-hander) focusing. The pipe that needs to be bandaged by the desired radius, goes between the template and the focus and gently bent it, watching it does not jump from the template.

Collapsible pattern of hooks

With the help of such a pipe-bending made from undergraduate materials, bending can be flexed by a large bend radius. It is possible to avoid the manufacture of a wooden template and simplify the device, replacing it on the metal hooks fixed on the base, located around the circumference with the desired bend radius. It is convenient for such a device by the fact that the size of the bend at any time can be changed, placing the hooks-stops around the circle with another radius.

Armed with a manual winch, it is possible to significantly expand the range of work produced by a noticeable increase in traction for flexing pipes.

The winch will help expand the functionality of the simplest hand-loading

Pressure Trucks

A more complex design is a manual pipe bender, which uses a pressure roller. For the manufacture of such a device, you can use both a tree and metal.

For pipes made of soft materials (for example, copper) optimal option are rollers from wood, as they do not cause metal deformations. Such rollers are completely easy to make at home, if you use photos or drawings of such devices, in large numbers posted on the Internet. Thick boards or several layers of plywood can be used as the manufacturing material.

Drawing of pipe bending with a pressure roller

The homemade tube bending of a similar structure, the basis of which rollers - movable (presser) and fixed, is allowed to be flexing the pipes of the circular cross section that differ in even a significant diameter.

In order to understand that such a device is characterized by simplicity of design and use, just look at his photo or drawing. Depending on which loads are assumed for the pipe-bender of this type, the base for it is made of metal or durable plywood. The p-shaped holder on which the central and presser rollers will be placed, made from metal.

Regarding the axis of the central roller, reliably fixed on the ground, such a holder should be able to rotate. From the reverse side of the central roller on the holder, the handle is attached, which is a lever, therefore the strength created directly depends on its length. Such lever pipe bending allows you to perform operations with different radius of the bend of pipes.

Many are asked about whether it is possible to manufacture with your own hand-trailers of a winding type. Naturally, it is advisable to study the drawing or photo of such a device, which does not stop on the ground. The basis of the design of the pipe-bender of this type is two pulleys, a frame with a lever and a presser roller, a reliable base. Bending with such a device is carried out due to the fact that the pipe placed in a fixed pulley groove and clamping the clamp, turn around the template with the lever and the movable roller.

Pipe bender for soft pipes into two different bend radius

For small and soft products (aluminum or copper), self-made pipe bending is suitable, allowing you to be bent with two different radii. The photo of such a device is easy to find on the Internet. In this pipe bending, one clamping roller is used, and the template is made simultaneously with two radii on one plate. Naturally, for each version of the flexible, the pipe-bending handle must be reinstalled, for which two holes are provided on its base.

Trucks of winding type

Examples of such devices are hydraulic tube benders used to bend the pipes of the circular cross section. In the design of such a device there is a powerful pulley to which the pipe is attached at the bend point. This pulley is fixed on a reliable bed, and in its foundation there is a rod, which is activated using a jack. A significant effort is created on the rod using a jack, which is transmitted to the lever, rotating the pulley and winding the pipe. The lever can freely rotate around the pulley axis and connects with it using holes located along its circumference.

True bending arbal type

These pipe bending were obtained due to their similarity with the Cross. The basis of the design of a similar device is a frame, manufactured by welding from the corners and a schuleler. Inside such a frame, on which two moving rollers are attached, a jack is located, with a special shoe creates an effort directed to the pipe. Pipe benders with movable rollers and pressure shoes are used mainly for flexible circular pipes, as they can simply deform any other types.

Stern brown pipe bender without frills

The most popular options for homemade pipe bending

The most technologically and universal are pipe begins working on the principle of rolling. It is such devices that are often equipped with electric drive, are used by professionals that are constantly facing the need to be flexible pipes from various materials, including stainless steel.

Option of self-made pipe bending

The basis of the design of such a device is three rotating rollers, one of which is presser. Due to the gradually increasing pressure of the presser roller and repeated for each new position of the roller, the flexion of the pipe is carried out in the most gentle method, its walls are exposed to stretching manipulations very uniformly.

Homemade pipe bender with electric drive made by hand

Drawing Ring Accessories PipeBield Building Process

Engine drive Side view of shafts Ready pipe bender assembly

Most importantly, it allows you to make such a pipe bender - it is to adjust the bending radius of the product being processed. Options for constructive execution of such a universal device can be several: on the elements of the frame structure are rotating resistant rollers, as well as the wheel, with which the pipe is rolled; Side bearing surfaces and base is made from sheet metal, and a screw transmission is used to move the presser roller. On the second type devices, you can change the minimum bend radius, which is achieved by changing the position of the support rollers.

The shafts of this pipe bending allow you to comfortably work not only with round pipes, but also with the profile

Carrying construction for such a pipe bending can be made of wood. Metal in it will remain the axis of the rollers, stock, fastening elements and a handle for scrolling the rollers, which can also be made of wood or polymeric materials.

Above, we looked at the pipe bending in which the process of stretching is ensured by rotating the presser roller. There is also a category of devices in which the pipe movement is set by rotating the support rollers.

Option with screw jack

The pipe bender is electric or manual, in which rotation is transmitted to one roller, has limited capabilities. For pipe bender, in which both support rollers rotate, a more complex design is characterized, since it is necessary to transmit rotation to two elements at once.

More convenient, according to many specialists, is the pipe bender, in which the pressure roller is located below. Some masters adhere to the opinions that control the flexion of pipes on it is much easier, they do not block the upper supporting structure.

Pipe bender with electric motor and drive through two chains

Any device for flexible pipes is a fairly simple adaptation, the work of which is based on the elementary laws of mechanics. If the need for flexion of stainless, metal-plastic pipes, as well as pipes from other materials occurs infrequently, it can be limited to a manual device.

If you need a more serious device for professional activities, it is better to build electro-hydraulic pipe bending, which will save physical labor costs using the strength of the hydraulic jack, and will save time, thanks to the drive shaft from the electric motor.

Pipe bender do it yourself - drawings, video and photos of the homemade bending device

We make pipe bender do it yourself, using drawings, photos and video of homemade bending devices. Manual, hydraulic and other pipe benders for a round tube.

Homemade pipe bending for profile pipe: device and nuances of manufacture

The need for a reliable and simple device for bending profile pipes occurs when a home master begins to seriously engage with the metal. Cutting frame, carport for car, garden bench, workbench ...

These and many other designs are durable and beautiful if the profile metal is neatly bent on a special profile profit.

Buying a finished machine is always an economical alternative, because it is possible to make pipe bending for the profile pipe in your home workshop. Before in the vice, the first workpiece will be clamped, we suggest you to get acquainted with the principle of work and existing varieties homemade pipe bending.

How does pipe bender work?

The principle of operation of this device is simple: a profile tube is placed between the three supporting shades. The central shaft creates pressure, flexing the metal at the desired angle.

For festering pipes on one local area, a point machine is used.

If you need to get an arched profile, then apply a rolling bending machine that combines a metal bend with a broach.

Varieties of pipe bending machines

Depending on the drive transmitting force on the profile metal, there are three varieties of pipe bending:

• mechanical (pressure is generated manually using a central screw or lever);
• hydraulic (hydraulic jack is used);
• electrical (flexing force creates an electric motor);
• electrohydraulic (the hydraulic cylinder is driven by an electric motor).

It should be noted that rolling tube with a hand-held profile barrel is designed for a small cross section (maximum 40x40 mm). A large profile to stretch manually impossible. For its flexion, powerful machines with an electrical outcritical mechanism are used.

Video about the device machine with an electric motor:

How to make a bending machine with your own hands?

The main principle that needs to be guided in the development of a homemade tube drawing is the maximum simplicity of design and reliability.

The machine for point bent can be collected from two slices of channels, four-corners and two trimming of the fingers from tractor tracks.

The flexion of the pipe in it performs a standard hydraulic jack with an effort of at least 5 tons. It is installed on its work rod by steel "shoe". It can be ordered from tokar or make it from the old pulley, the width of the "stream" in which is equal to the width of the profile pipe. I cut off slicing from pulley and brinks in it the landing socket for the rod of the jack, the hydraulic drive mechanism is obtained.

The box of the self-made device consists of four corners (shelf 60-80 mm) welded to the steel plate. Two channels weld to the top ends of the corners parallel. In their walls, the holes are symmetrically drilled to regulate the corner of the billet bend.

In the working position, the manual machine for the flexible tube is very simple:

• Two steel fingers are inserted into the holes on the chaserler and put the rollers-stops on them.
• The jack with the shoe raises so that the profile pipe passed between him and the stops.
• By installing the pipe, work the jack handle, creating a bending force.

Video assembly and operation of point tubing:

Rolling handheld tube for the profile pipe is also quite realistic to build on its own. For its manufacture, there will be 2 channels of the channel (the height of the wall 15-20 cm), from which the base and racks are cut.

For the manufacture of rollers take six short trimming of the steel pipe. It will perform the role of the closure for bearings. Therefore, its inner diameter should be equal to the outer diameter of the bearing. Having ordered three shafts from Tokar to attach the bending rollers, proceed to the welding of the bed.

At the table under consideration, the role of the guide defining the angle of the profile bend plays the extreme right-hand support. It is mounted on a chaserler, hingedly associated with the main bed with ordinary door loops. The jack of the working rod rests on the swivel platform and raises it.

The rotation of the handle illuminated on the intermediate stop shaft, the profile is pulled through the machine.

You can adjust the radius of the profile bend not only by the slope of the swivel channel, but also the extreme rollers. For this, they are not welded tightly to the bed, but are made by sliding (drilled holes in the channel and support plates).

Instead of hydraulic jack for lifting the extreme roller, you can use screw automotive.

Pipe bender for profile pipe with your own hands - schemes of device, photo and video

Learn how to make pipe bending for a profile pipe with your own hands with your hands. Design options, description of the features of manufacturing, photo and video materials.

Pipe bender for the profile pipe with their own hands - architectural forms without excess costs

Pipes having a square, rectangular or oval section - are called profile. To collect pipe bending with your own hands, you need to find out with which pipe you are going to work and already pushing out from the pipe profile to collect pipe bending.

In the construction of canopies, small architectural forms, greenhouses - such a material is used at no less often than the traditional tube. Builders prefer such a section due to flat surfaces that are conveniently fixed roofing material. Yes I. appearance Such a pipe is much more respectable.

In the processing of Profiter, it is not more difficult than the round, however, when it is flexible, some features should be taken into account.

How to bend profile pipe - the simplest pipe bender

It is not necessary to make a complex device from rolls, levers and beds. For flexing profile pipes of a small cross section, a simple way for example:

Sand filling

In the inner cavity of the workpiece, sand is falling asleep, preferably small river. Sand is pre-signed and dried. Holes from the ends are drunk by traffic jams. Next, the profile pipe bends around the template of the required form.

If necessary, the place of bend can be pre-warm the solder lamp or gas burner.

Water filling

In fact, bending the profile with water is meaningless. Therefore, first it must be frozen. For this, the pipe is plugged on one side by a plug (ordinary plasticine can be used), filled with water and expose to the frost.

The frozen professional is bent on the template. Of course, it is impossible to use a burner or soldering lamp, otherwise the whole point of filling with ice will disappear. In this way, it is well bending thin-walled copper or aluminum pipes.

Spring (homemade Dorn)

Pre-from steel wire is a spring, the dimensions of which are 3-5% less internal profile cross section. Ready tooling is placed inside, and professional can be bend traditional way Around the template. After the end of the work, the spring is removed, aligned and can be reused.

Cutting and welding

The following method is applicable in the case when the bend radius is small, and the profile is thick-walled and durable. From the inside of the alleged bend, the grinder is cut down segments, the geometry of which is calculated before the start of work.

The pipe bends to the required radius, and the closed edges of cutouts are brewed in any way. For aesthetics, welding places are grinding with a grinder.

To work with more serious size and characteristics of the profile requires a special tool.

On an industrial scale, the profiled strip is bent with special machines, many of which are equipped with CNC. It does not mean at all, the process cannot be repeated at home. At a minimum, there are manual pipe bending for the profile pipe, which cope with a rather large cross section and small bend radius.

Profile pipe bender do it yourself rolling type

Installation can be both portable and stationary. The drive is provided with muscular strength or using an electric motor with a gearbox.

The principle of operation of a manual tube-bending one - Proftrub relies on the separated rolling stops, between them is a persisting video, which presses on the workpiece. The profile is extended horizontally, along the way bending along the predetermined radius. The scheme reveals the design and main nodes of fixtures.

Rollers for pipe-bender can be cylindrical or with a dossicle, it depends on the size and characteristics of the workpiece. Flat and wide profile It is convenient to ride a flat rolling roller, narrow and high requires the guide protrusions.

The most popular universal rollers. On the cylindrical basis, if necessary, you can wear guide sabers-washers.

Homemade pipe bending is most often made on the basis of this design. They are suitable for professional virtually any size and do not require expensive elements when assembling. All the details, with the exception of the rollers, can be found in their stoppers. Drawing of manual pipe bending clearly demonstrates simplicity of design.

Most home masters use manual drive, because the speed is not needed at such work. However, if you need to make a large pins of the bent prom profhrub - mechanization is used. Applying a simple chain gearbox and a powerful drill, you can go to the industrial level of the production of the bent profile.

Let you not frighten the complexity of the manufacture and search for the necessary components. The cost of making workpieces from proftrub is so high that the manufacture of a self-made device will noticeably save your tools. The abundance of self-made variants of profile machines only confirms these words.

For example, here is a design made from written off and thrown industrial electrical equipment. Two-walled reducer is cut in half, and served as supporting rollers. The downstream is connected to a three-phase electric motor, on which the starting mechanism is converted to single-phase power.

Both shaft are synchronized with a motorcycle chain and gears from the same bike. The resistant roller is activated using the usual "Zhigulevsky" diamond jack. The machine turned out so successful that it overtooks factory analogues in terms of performance. And costs - a couple of half a litter for the work of the welder.

On the video, the master tells about the size of the homemade pipe bending for the profile pipe. Hand-made pipe bending is made with his own hands from a girlfriend, which was found in the barn and turned out to be quite high quality. During the operation, the pipe is obtained exactly on the arc and does not lead it by the "screw".

Lever pipe bending for profile

Bending the profile tube on small radii is not as simple as a round. Even the heating or filling of the sand cavity will not help. This is due to the feature of the geometry. It is impossible to break into the flat side walls, without forming breaks, and the inner plane of the inner radius is folded by the harmonica, driving the profile on the sides.

Therefore, the radius of the profile is much larger than the simple pipe.

However, for such billets there are lever pipe bending of a small radius working on the principle of running. The profile seems to be wound on the template of a given radius, pressing with the guide roller installed on the lever. Cunning in the profile of the roller-template.

In the middle of the excavation there is a protruding part, which presses the plane of the inner radius into the cavity of the profile.

Due to this, the voltage on the walls is removed, and the entire "extra" metal goes inward, not the order of the appearance of the workpiece. The same thing happens with the plane of the external radius, only for this does not need special rollers. The geometry of the profile comes into force.

Another way to bend a profile with a small radius - ripping pipe bending with a guide.

The pattern as it is rolled along the rolling part of the machine, constantly controlling the status of the profile. With this method, the geometry of the workpiece is preserved as much as possible. If the process is accompanied by intense heating - the quality of the bend will increase significantly.

However, this method is applicable only in industrial environments using powerful gearboxes or hydraulic drives.

If it is necessary to round the narrow side - then you will have to cut the brandy sectors and then boil the seams (see the beginning of the article).

In fact, bending the profile tube on small radii is not often. It must be remembered that the profile loses the strength qualities in the place of bend. Therefore, when creating structures in which the angles close to 90 degrees are used - it is better to cut the workpiece and cook it at the desired angle.

Cold forging

Another area of \u200b\u200buse of small radii is the manufacture of curly jewelry.

Technology is called "Cold Forging". The devices for this type of work can be purchased in the store or also make it yourself. There is no widespread use of such devices, but if you master the technology - you can decorate your vacation home Original elements from a banal square profile.

Taking advantage of tips from this article - you expand your master range and save money.

Pipe bender do it yourself, schemes, drawings for pipe bender profile pipe

How to bend profile pipe if there are no suitable tools and homemade pipe bending? Make pipe bending with your own hands, after reading our article

The greenhouse frame with a square or rectangular cross section attracts reliability and service life. Extremely durable metal constructions misses the maximum of light, because its racks, supports, screeds are much thinner than the wooden rivals. Given the metal in the processability. Without knowledge of the nuances, it is difficult from a direct blank to make an arched arc or a frame for the door. Due to the specified complications with the metal base, the green houses are perfect in vain in vain. However, if it is pretty to figure out how to bend a profile tube for greenhouses, it is possible with minor costs to handle an inexpensive arched structure.

The essence and problems of flexing profile pipe rod

The flexible metal products, regardless of the section, consists in giving them a partial or complete smooth-curved configuration. One of the common plumbing procedures is carried out either only under pressure, or under pressure in combination with heating of the bent area. At this time, compression powers on the inside of the workpiece and the strength of the stretching along the outer wall are simultaneously operating on the trading part of the hollow metal blank. Complications are that:

• material in the process of changing the form may lose the coaxiality of the segments, i.e. parts of the curved billet will not be located in a single plane;
• a stretched outer wall on the bending area may not withstand the effects and tritely burst;
• the compressible inner wall may instead of a uniform reduction to be folded with folds resembling corrugation.

Without knowledge of the subtleties of profile flexion there is a risk just to minimize the product by spoiling the workpiece. But the recklessness is not our way! Especially if it is accompanied by material losses. In the glory of rational economy we will take into account all the whims of the profile and the characteristics of the "iron" material. Do not forget about the size of the section, the thickness of the walls of the profile pipe, the required bending radius and the elasticity of the steel alloy. Focusing on the specified parameters, choose the correct technological path - it is the method of bending.

Why do you need to know profile characteristics?

The profile pipeline from the standard round variant is characterized by a cross section, which can be square, oval, rectangular or flat. According to the GOST RLUNY, number 54157-2010, the round product is also included in the list of profile products. However, in greenhouse construction, products with a square and rectangular cross section are most often used, for example, profile pipes of 40x20 mm, because they are easier to attach the coating to their smooth flat walls.

For a variety of national economic needs, products are produced in a wide range of sizes. It varies on the configuration and cross-sectional area and, of course, in the thickness of the walls. The combination of sizes determines plastic capabilities. In a professional language, they are called the minimally allowable radius of rounding. So, before you know how to make a blank for a frame, you need to find out how the smallest radius of a flat rounded deformation blank will be able to "survive" without damage.

To determine the minimum allowable bend radius of a square or rectangular profile, we need a height H, because:

• products with a profile height up to 20 mm will be brought without a transition to the discharge of an unsuitable marriage if the bending will be made on a plot of 2.5 × H and more;
• the pipeline with a profile height of over 20 mm without loss will withstand deformation on a stretch of 3.5 × H and more.

The designated limits are needed to those who have conceived to make racks, shelves and frames for the vents or doors. The wall thickness of the walls contributes to the area of \u200b\u200brestrictions. Wide pipes with thin walls thick up to 2mm do not recommend bending at all. It is better to use welding.

To homemade masters, which decided to make arcs for, it is necessary to take into account that the products used in everyday carbon or low-alloy steel alloys after an application for their efforts have a slightly "spring" property. They, as it were, try to return to the previous state. Consequently, after the beginning of the locksmith will complete the flexibility of all arcs, with his own hands, he will have to repeat the processing and re-fit the arches by the template. It is desirable to initially take into account the value of the plastic torque of WP resistance. It usually indicates the documents of the construction of building materials. The less moment is less, the less comes with fitting.

Methods are bending and their features

Flex a profile pipeline both in cold and hot. Heating with a gas burner will significantly increase the plasticity. However, the material of a small section is excellent and without excess temperature effects, because thin pipes are plastic enough and easier to be applied to them.

There is no accurate indication of the use of heating for flexion. The standards indicate only the size of round rolled steel, according to which the flames on the processed area are needed at Ø 100mm and more. With square and rectangular forms, everything happens somewhat differently. Based on the experience of folk craftsmen:

• with a profile height of up to 10 mm, the workpiece is uniquely bent with a cold way;
• with a profile height of 40 mm and a more pipe bent with heating.

How simpler and easier at home to bend a profile with a height in the range from 10 to 40mm, the Contractor will have to be addressed independently. If there is a profileger in the master arsenal, you can create an arched rounding without heating. No apparatus, it is better to try your strength in advance. To do this, clamp one end of the material in the vice. On the second end, wear a pipe size more than the height of the profile, and pull the "shoulder" enlarged in this way. If it happened, heated metal products does not make sense.

Option # 1 - Bending with heating

The notable material will deform the hot method, after completing it with sand. So the quality of processing will increase, and the uniformity of the bend is ensured. Broken for work "hot" tarpaulin mittens and proceed:

• from trimming of a bar or lane, we will make two pyramidal plugs, the length of which should be 10 times the width of the base. The area of \u200b\u200bthe base of each self-made plug should be almost 2 times more square or a rectangular opening that it has to be stuck;
• the programme, as "sit" the plugs, then on one of them we will choose longitudinal grooves from four sides. They are needed for gas output, which will be accumulated when the filler is heated;
• pre-impose the workpiece on the segment of the future fold;
• prepare filler. As it, take a pure building sand of medium grain. For the absence of bulk building materials, we use the sand from the children's sandbox. I see it first through a sieve with cells 2 or 2.5mm to remove the gravel and grooves. Large inclusions on the surface of the pipes can form an unnecessary relief. Then the sifted mass again "miss", but already through fine sieve with cells 0.7 mm so that the dust particles do not swear when heated. All the filter, as well as the filler upon completion of actions, we will return to the sandbox;
• we pump the filler at a temperature of 150ºС;
• we beat one end with a wooden plug, on which there are no channels for removal of gases. In the second end, install a funnel. Depending on the size, we establish a blank at an angle or perpendicular to the Earth. Through the funnel, we will pour a filler. Periodically tapping on the walls of the product from below-up-up wooden or rubber Cyans so that the sand seal. A signal about sufficient seal will be a deaf sound;
• close the completed workpiece with the second plug;
• we note in chalk on the workpiece of the heating section;
• secure the workpiece or in the vice with the template, or in the clamp. Material with welded seam is installed so that the place of the welded connection turns out to be on the side. Along the seam is undesirable to stretch or compress;
• rassed the noted plot of hot, and gently give the workpiece the necessary form. Bend to one reception by a progressive unwitting movement in a strictly horizontal or vertical plane;
• after cooling, compare the result with the template. If everything is in order, knock or burn the plugs and pour sand.

The method described is good for the formation of single angular folds, because Do not heal the pipes several times persistently recommend. Metal from multiple temperature shock loses strength. However, when creating a rounded arch, multiple heating is inevitable. After all, it is unreal, but cooled to a light cherry hue, i.e. Up to 800ºС, the blank may simply break.

Option # 2 - Cold Method

Plastic deformation of the profile rental "on cold" produce, both with filler and without its use. The material with a profile height up to 10 mm does not require filling. A thicker pipe is better filled with sand or rosin. An alternative to the sand filler will serve as a spring of a dense navigation, the dimensions of which will allow it to tightly in the cavity in the processing site. The spring gasket will prevent the sharp change in the cross section of the profile in the bend places.

Bending "Cold" at home can be:

• manually using the simplest devices like bending plates, vice and mandrel;
• using a mobile profilegility - an improved analogue of manual pipe bending. ProfileGE differs from the device for flexing round pipes only by the form of the recess of the working roller;
• by rolling on a homemade or factory profilogram machine, which can be made it with your own hands or purchased in the finished form.

Technical means of mechanization are bending wisely and more profitable to rent, if they are needed for one-time construction of the greenhouse. If in perspective the construction of green houses for relatives and neighbors or the construction of a beautiful metal fence, for example, there is a reason to acquire its own bending installation.

Bending devices and machines

There are representatives of varying degrees of technical complexity in the family of devices and aggregates for flexible. To begin with, consider the funds for those who are puzzled by the issue, as with the help of which the profile tube can be bent without the use of special equipment. Then we turn to homemade rolling settings.

Options of simplest devices

The use of elementary "helpers" for cold deformations regulate the size of the material:

• thin pipe racket with a profile height up to 10 mm bent with a horizontal plate with holes. Metal pins, playing the role of stops, rigidly installed in the openings. Flexing the product, placing it between the stops installed in the holes according to the bending radius. Start from the middle of the workpiece and are gradually moving towards the edges. Minuses of the method in the applying of considerable muscle efforts and in rather low deformation accuracy;
• pipes with profile height up to 25 mm bent with roller devices working on the principle of the Volnov machine. Metal blank is firmly fixed in vice, and physical force is applied to the treated part through the roller. Bending is made high quality and evenly than in the previous case. But from the artist, by analogy, non-reasonable efforts will be required.

For the formation of bend with a large radius of curvature, type of arched arched frame, fixed rounded patterns with homutics for fixing the workpiece are used. These adaptations to the discharge of plane-parallel plates are. The workpiece with the "stack" in the groove, the dimensions of which are equal to the size of the pipe. Manually flexible with mandrel tube takes the form of a given circuit.

Upgraded bending plate

If the home fitness is not deprived of physical force, the simplest tool for its own needs is useful for its own needs for a rather laborious deformation of the profile tube. It can be performed as a panel attached by clamps to the desktop or to the workbenk. In the case shown in the photo, the bending plate is welded to a metal pedestal, but it is bolted with four bolts to the concrete floor of the workshop. To remove the fixture upon completion of the work, the bolts will suggest. No fastening pins after dismantling remains and does not rise above the surface of the floor, it means that nothing will interfere with the movement and create traumatic threats.

The principle of manufacturing the working plane is extremely simple:

• The bending plate serves as a panel carved from thick sheet iron.
• The panel is welded to the profile pipe installed through the telescopic rules in the rack of the pedestal.
• Two holes for bolts are drilled in the working plane, which are stops.
• The radius of bending is adjustable by setting one of the appropriate nozzle bolts.
• In order to preserve the coaxiality of segments adjacent to the split, a metal plate fixed by bolts is installed above the workpiece.

Press Multifunctional. His owner has the opportunity to use it as a miniature workbench to perform an impressive amount of plumbing operations.

Mandrel for flexing profile pipe

The method is suitable for products with a height of the wall to 25mm. The master will need a large vestic area and a significant free space around the working area. One edge of the workbench is perforated with frequently located holes for fastening the mandrel and to select the optimal position of the part locking the pipe. The template for the upcoming plastic deformation is cut out of thick plywood. True, the plywood mandrel is suitable only for one-time bending procedures. If the flexure works have to do a lot, the mandrels are better to cook from the steel corner.

Use manual profilegiba

Significant amounts of deformation work need mechanization. Mass production of curved parts takes too much health from the performer. To facilitate bending, it is advisable to make a machine according to the drawing. Apply them mainly for work with blanks large size. The main working bodies of the manual aggregate are three rolls, two of which are fixed. Changing the position of the third rolling roll determines the bending angle.

If the methods described above are not acceptable, then the future owner of the greenhouse has two outputs - rent a manual installation or ordering the production of rounded parts. The process of deformation of the workpiece has demonstrated video: how it is easier to bend a profile tube - multiple rolling or physical influence, solve the performer.

When manually, it is important to comply with the rules of flexing profile pipes and do not make sharp movements. It is necessary to monitor the uniformity of deformation from the outer and inside of the rental. However, one should not be too upset due to small folds on the inner surface of the bend: they can be fixed with hammer blows. Before starting work, you need to make patterns from wire, chipboard or hypostertone for reconciliation and obtaining a result that corresponds to the project.

The question of how to bend a profile pipe without using special equipment for this, many of those who are going to build on their panstone Greenhouse. Such structures made of bent pipes not only pass significantly more light, but also differ in high stability and durability, if you compare them with structures from wooden bars. It seems that the proftrubube, creating an arched structure, is not easy, but if you understand the features of this process, it is quite possible to effectively perform it using the simplest devices.

What is the difficulty of flexing profile rental

The essence of the flexible metal rolled, regardless of the form of its profile, is that the profile pipes are given partial or full bend. Perform such a technological operation in two ways: acting on the bent pipe only with pressure or additionally heating the pipe of the pipe, in which the bend is performed. In the course of bending, two forces are simultaneously operating on the metal pipe:

• compression force (from the inside of bend);
• the strength of the stretch (from the outside of the bending area).

It is the impact of such multidirectional forces that causes complexity characteristic of the process of flexing any profile pipes.

1. The segments of the pipe material, which in the process of bending changes its shape, may lose the alignment of its location, which leads to the fact that individual pipes of the pipe will be located in different planes;
2. The wall of the proftrub, located on the outside of bending and exposed to stretching, may not withstand the load and burst.
3. The inner wall of the pipe, subjected to compression, can be covered with folds that resemble corrugations.

If you do not take into account the subtleties of such a technological process, then instead of bending the profile tube, you can simply minimize the product, irrevocably spoiling it.

So that this does not happen, it is necessary to take into account not only the characteristics of the material of the pipe, but also its geometrical parameters are the size of the section, the wall thickness, the radius to which the bend must be performed. The knowledge of the listed will allow you to choose the appropriate technology and bend the proftrube correctly, without resolving it and without receiving a corrugated surface.

The need for accounting profile

Categories of the profile pipeline include products having a different cross-sectional shape - round, square, oval or flat. Despite such a variety, for the construction of a greenhouse or a canopy mainly use rectangular or. This is due to the fact that on their flat walls is much easier to mount the external coating.

The range of modern profile pipes is different large variety. Their geometric parameters, the main of which are the cross-sectional area and the wall thickness, determine the plastic capabilities of the product. The latter characterizes such an indicator as the minimum allowable radius of rounding. It is this parameter that allows you to determine which the minimum radius can be bent a professional to be bent so that it is not damaged.

To determine such a pipe parameter with or a rectangular profile, as a minimal bending radius, it is enough to know the height of its profile. If you are going to bend a profile tube with cross section In the form of a rectangle or square, follow the following recommendations.

• Pipes, the height of the profile of which does not exceed 20 mm, can be bend in areas whose length exceeds the value of 2,5хh (H is the height of the profile).
• Products, the height of the profile of which exceeds 20 mm, can be successfully bend on areas whose length corresponds to 3.5xH and more.

Such recommendations will be useful to those who are going to bend profile pipes in order to make racks, canopies and various frame structures from them. At the same time, however, it should be borne in mind that the possibility of high-quality flexion of pipes affects the thickness of their wall. Products, the wall thickness of which is less than 2 mm, it is better not to bend at all, and if it is necessary to create structures from them to use welded connections.

At home, bend proftrube, which are made of carbon or low-alloy steels, can only be taken into account certain nuances. Such pipes after bending can sink and return to its original state, so the finished structures must be re-customized by the template. The magnitude of the skip characterizes such a parameter of profile pipes, as the plastic torque of resistance - WP. This parameter is indicated in the accompanying documentation (than it is lower, the less promotion profits in the process of their bending).

Features of the most popular methods of pipe bending

In production or homework, proftrube is bent both heating and cold condition. Heating, which is produced using a gas burner, significantly increases the plasticity of the metal, due to which less effort is required for bending. Pipes of a small section can be bent and without heating, because they are so different with a good plasticity.

Regulatory recommendations regarding the use of heating are available only for round-section products. So, heated before flexible the pipes, the diameter of the cross section of which exceeds 10 cm. In cases where the square or rectangular pipes are bend, it is necessary to navigate on their own experience or tips of other home masters.

1. Without preheating, the pipe is bent, the profile height of which does not exceed 10 mm.
2. If the height of the pipe profile exceeds 40 mm, they must be heated before flexible.

If at your disposal there is a pipe bender, with it, you can easily handle the task of cold flexible pipes, the height of the profile of which is in the range of 10-40 mm. In the absence of such a device, it is necessary to solve the question of how to bend the pipe without a pipe-bender, after conducting uncomplicated tests. They will help you determine, you should heat the proftrub before flexible or not. These tests are carried out as follows. One end of the pipe is clamped into vice, and the second is put on a pipe with a large size of the internal cross section. If with the help of such a shoulder, it is possible to bend the pipe clamped into vice, you can perform this process without preheating.

Flexible pipes on various methods well demonstrates training video, but it will not be superfluous to pre-examine this process in all details.

Bending Prof Pedube with preheating

To bring the profile pipe with your own hands with a hot method, you must first fill it with sand. This will make the bend better and uniform. Because you have to deal with hot metal, all work should be performed in dense tarpaulin mittens. Bending itself, with the implementation of which can be found in the video, is performed in the following sequence.

• Both ends of the profile pipe must be closed with plugs that are made of wooden bars. The length of such plugs should be 10 times the width of their base, which, in turn, should have an area, twice the area of \u200b\u200bthe hole in the pipe closed with their help.
• After fitting the plugs under the inner section of the pipe on one of them, 4 longitudinal grooves are performed, which are necessary to remove the gas accumulating in the pipe when the fill-fill sand is heated.
• The proftrub plot, which you plan to bend, is required to be supervised.
• As a filler for a pipe, you need to use the sand of medium grain. If there is no purified building sand, you can take any, even from the children's sandbox, but it should be prepared accordingly. So, the sand is first sifted through a sieve with a cell size of 2-2.5 mm to remove gravel and fine pebbles from it, and the final sifting is performed on the sieve with the cell sizes of 0.7 mm. The final sifting is necessary in order to remove the dust inclusions from the sand, which can be sintered when heated.
• Prepared sand needs to be hungry at a temperature of 150 degrees Celsius.
• Before grazing sand, one end of the pipe is closed with a plug, on which there are no gas-sized channels. A funnel is inserted into the second end through which the sand prepared sand is poured. To the sand evenly and tightly filled the entire inner cavity of the pipe, when it is covered, it is necessary to tapping through the walls of the product using a wooden or rubber image for this.
• After full filling of the pipe with sand, its second end is also covered with a plug.
• A plot that will be heated for further flexion must be noted in chalk.
• The pipe must be fixed in vice with a template or in a pipe clina. It is important that the welded seam is, if it is on the surface of the product, turned out to be on the side. It is necessary to adhere to this requirement because the welds are undesirable to expose to compression or stretching.
• Plot pipe, previously marked with chalk, heat hot with a gas burner. After a complete warm-up, the pipe neatly, without making sharp movements, bend into one intake, applying efforts strictly in the vertical or horizontal plane.
• After cooling the bent pipe, the result obtained is compared with the template. If everything is fine, then the products are removed from the ends of the product and pour sand.

This method, which is easy to implement at home, is best used in cases where at the prom Profiter it is necessary to form a single angular bending. Multiple metal heating can lead to loss of its strength, and it is impossible to avoid it if you jet the pipe for its use as an element of arched design.

How to bend the pipe without preheating

Bend the profile pipe itself, without heating it before, you can, as with a filler, and without it. Do not require filling with sand or rosin pipes, the height of the profile of which does not exceed 10 mm.

There is another technique that involves the use of a sprocket with a dense navill of turns instead of the filler, which is inserted into the inner cavity of the prom and protects the walls of the product from the deformation, as well as from the excessive change in their thickness in the process of bending.

Those who need to bend profile pipes with their own hands, not previously heating them, you can use the learning video and the following simple recommendations.

1. It is possible to obtain the desired bending on profile pipes using the simplest devices - vice, mandrels, bending plates.
2. You can use for round-profile products. In this device, it is necessary to remake the working rollers, the shape of the excavation in which must correspond to the pipe profile.
3. It is possible to generate pipes most effectively and accurately with the help that can be purchased or made with your own hands.

Fixtures for flexible pipes

The question of how to bend the pipe without a pipe-bender will not cause difficulties if used to perform this operation the simplest devices. You can perform cold flexible pipes using the following devices.

• In cases where to bend is needed soft (aluminum) or steel pipe With a profile height not more than 10 mm, a horizontal stove is used with holes in which the stops are inserted - metal pins. With these pins and flexible products are performed according to the required parameters. This method has two serious disadvantages: low accuracy of bending, as well as that when it is used, it is necessary to apply significant physical efforts.
• Products with a 25 mm profile height is better bent using roller fixtures. The pipe is reliably fixed in the vice, and to that part of it, which must be bent, the force is applied using a special roller. This device allows you to get better bending, but also requires an application of physical effort.

An option that is called, an ambulance hand. The long lever of this is extremely uncomplicated device allows you to cope with rather thick pipes.

For forming on steel or aluminum promotional curvators, motionless rounded patterns are used on a large radius of curvature, which mount special clamps for fixing the product. On such an adaptation, the pipe is also hung manually, with an effort to lay it in the chamber of the template, the form of which exactly corresponds to the desired bend radius.

Plywood and metal brackets are everything you need for the manufacture of a bending template

Bending plate

In order to effectively bend steel or aluminum pipes at home, you can make an upgraded bending plate using the following guidelines.

1. The role of such a plate plays the panel, which is cut from a sheet metal of a large thickness.
2. The panel made in this way welded to the rack, which is installed on a special pedestal.
3. Two holes needed to install bolts that serve as a profile tube are drilled in the panel.
4. A special nozzle is installed on one of the bolts-stops, with which the bending radius is adjusted.
5. In order to ensure the coaxiality of the segments of the pipe adjacent to the split, over the workpiece placed the metal plate fixed by the bolts.

At that moment, when you do not use such upgraded pipe bending, its pedestal can be adapted to perform various plumbing operations.

Bending mandrel

For bending at home, profile pipe products, the height of the walls of which does not exceed 25 mm, you can make a special mandrel. To this end, it is better to use an overall workbench, on the surface of which there will be enough space for such a device. To select the optimal location of the element that locks the flexible pipe, often spaced openings are performed at one end of the workbench. For providing the desired bending radius, proftrub is answered by a special pattern that can be made of thick plywood or metal corner if you are going to use it often.

Application profilegiba

Of course, if you have a significant amount of work on flexible profile pipes, it is better to make a special machine for this, whose drawings are easy to find on the Internet. We will not take here to disassemble this question, since more than in detail is considered in the articles on the links below.

Do not do without such a machine and in the event that you need to bend pipes with a large cross section of the profile. The main working bodies of such a machine, distinguished by broad versatility, are three rolls, two of which are fixed motionless, and due to changes in the position of the third regulate the radius of the product bending. A chain transmission and handle that the operator rotates as a drive of such a device.