A profile pipe bending machine is a very popular type of metalworking equipment. This is explained by the fact that pipe products of this type are today actively used in many areas, including for solving domestic needs. If cutting a profile pipe is easy to do even with hand tools, then to bend such a product it is necessary to use a special pipe bending machine.
There may be only two options for obtaining such a machine at your disposal: purchasing serial equipment, for which it will be necessary to allocate significant financial resources, or making a device for bending profile pipes with your own hands. Today there are many design schemes according to which homemade machines for bending profile pipes can be made. It is worth dwelling in more detail on the simplest of them and, accordingly, the most popular among home craftsmen.
Regardless of what Consumables and the mechanisms are in your home workshop or garage, a do-it-yourself machine for bending a profile pipe can be made according to various design schemes. Having done even the simplest homemade pipe bender, in the future, if the need arises, you can improve its design by providing such equipment with a number of additional functions.
The main design elements of any machine on which it is performed are:
Before production homemade equipment for bending, it is advisable to prepare a drawing of it or find a ready-made one on the Internet. Moreover, there you can also find videos from detailed instructions, explaining the manufacturing process of a device for bending profile pipes.
If bending equipment equipped with working shafts is used for rolling a profile pipe, during which it is bent, then profile benders simplest design, which we're talking about, work on a different principle. On devices of this type, it is carried out, which must first be formed from rigidly fixed elements. As such elements, strong metal pins, fixed in concrete base. An arc is formed from such pins, along which the corrugated pipe is bent.
To make a device on which it will be possible to effectively bend a pipe along a radius, it is best to pour it yourself concrete platform and fix the metal pins on it as securely as possible.
Bending steel pipes, for which such a simple device is used, is carried out in the following sequence.
Since working with such a device requires significant physical effort, to make the task easier (especially when bending pipes) large diameter) the place of the future bend is preheated gas burner or at the stake. You can learn more about the rules of operation on such a device in the corresponding video.
Of course, such a device, which can be built in the yard of your home, has minimal efficiency and functionality. For example, it is quite difficult to bend with it stainless pipes or make complex bends. Nevertheless, it is quite possible to use it for simple bending work. Such work, for example, may be associated with laying a pipeline or making a frame for a home greenhouse.
A selection of photographs and drawings for making a lever-type pipe bender yourself, as well as a video with comments and explanations from the author.
This lever pipe bender is not too difficult to manufacture and allows you to work with fairly thick pipes
A video from the author will allow you to understand the key points and small nuances manufacturing of this pipe bender.
If working with metal pipes of various profiles is related to your professional activity, That best choice for you will be serial machines for bending profile pipes, which differ not only high efficiency, but also with expanded functionality. Today there are many different models of profile benders, which differ from each other both in their performance and range of functionality. This variety allows you to choose a machine for bending profile metal pipes, focusing on your needs and financial capabilities.
Let's consider the most important advantages that a serial machine for bending profile pipes has over manual devices.
When choosing a serial machine for bending profile pipes, you should keep in mind that the cost of such equipment, depending on its technical characteristics and functionality starts from a few hundred US dollars and can reach several thousand.
To perform bending operations on standard equipment, you must have certain training. If it is not there, then you can study the features of this process using videos that are easy to find on the Internet.
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In this article we will try to figure out why profile pipes are needed; why bend them; what equipment is needed for this and is it possible to make a bending machine for a profile pipe with your own hands.
The great advantages of square and rectangular pipes as elements of load-bearing structures have already been covered many times in articles, so we will focus only on the main points:
The profile pipe is practically not used for transporting liquids and gases; its destiny is all kinds of load-bearing structures and frames of furniture, greenhouses and other structures, which should combine lightness and strength as much as possible.
Advice: for a greenhouse, to be honest, profile pipes are better only because they are a little simpler to install.
The flat surface of a rectangular pipe is easily screwed to the same plane. In terms of strength, an ordinary one will suffice. water pipe three quarters of an inch in diameter.
In some cases, rather than simple rectangular structures made from a profile pipe, various roundings and arches are preferred. Their use is practiced in several areas:
These are primarily various exhibition pavilions, sports facilities and hypermarkets.
Complex shapes of structures with an abundance of roundings serve two functions:
The reasons for making them rounded are exactly the same: you need to impress the consumer and not get complaints from him when the structure is blown away by a gust of wind or crushed by accumulated snow.
You understand that the aesthetic component completely fades into the background. But practical motives become all the more important because the main roofing material here is a thin and fragile film.
If the greenhouse is not streamlined, the very first strong gust of wind will send it on a seasonal migration to Africa. I think there is no need to explain about snow and rain...
The profile pipe is valued because it is durable. If so, you won’t be able to bend it into a neat arc on your knee.
We need a high-tech solution.
The simplest pipe bender for a profile pipe consists of three rollers on durable bearings, a durable frame and two handles. One sets the pipe in motion, pulling it along two rollers of the pipe bender, while the second handle presses the pipe with the remaining roller using a simple clamp mechanism, deforming it. The pipe is pulled through a pipe bender, turning into a neat arch with the desired radius.
For large production volumes, pipe benders with electric drive. Thanks to the gearbox with a high transmission ratio, an overly powerful electric motor is not needed: the typical power of such devices lies in the range from half a kilowatt to one and a half.
The most advanced devices have two independent electric motors for drawing and deforming the pipe and several sets of rollers, which allows you to bend pipes of a wide variety of profiles without the risk of leaving any marks on their surface.
Of course, you shouldn’t expect too much from manual machines. Profile pipes for metal structures suitable as the basis of an indoor stadium, they are not bent. However, for example, a collapsible greenhouse that can withstand strong wind and heavy rainfall, you can provide for yourself. The simplest machine is also suitable for the continuous production of various arched canopies and visors to order.
If you have materials, tools, free time and a pair of properly sharpened upper limbs, you don’t have to look for a bending machine for a profile pipe in stores, but make it yourself.
For example, in this, without irony, masterpiece of handicraft we see very original use a regular car jack. It rests on top part welded frame and when the handle rotates, it presses a tool steel roller into the pipe, deforming it. The function of pulling the pipe is assigned to a fairly powerful electric motor with a worm gear.
If you don’t have an electric motor at hand or you simply don’t want to mess with an electric drive, you can literally build even more terrifying, but no less effective structures on your knees.
Here the entire structure is welded (judging by the state of the steel, it was welded a long time ago) on a piece of a thick I-beam. Broaching - with a handle with a simple chain mechanism, deformation - with a homemade, primitive clamp. And everything works great.
Advice: if you don’t have the remains of several machines in your barn or garage, it will often be not only faster, but also more profitable to buy a ready-made pipe bender.
Prices for the simplest mechanisms start at several thousand rubles.
Conclusion
To be honest, cases when it is really necessary to bend profile pipes yourself are rather an exception for a city dweller. If you have your own large farm in a rural area or you are going to start your own business in construction - well, good luck in choosing a tool!
Profile pipes have become a part of human life thanks to their inherent properties: increased strength, the presence of stiffening ribs and convenient geometry. Due to widespread use products, there is often a need to bend such pipes in one or several places and at different angles, for which equipment for bending profile pipes is used. About the types of pipe benders, working with them and self-production devices will be discussed in this article.
As mentioned above, often - and in household, and on an industrial scale - there is a need to change a round or profile pipe by bending it at the required angle in one or several places or giving it a smooth bend radius. This is required both for the technological conditions of pipe operation and for aesthetic reasons (for example, when creating patterned structures and elements - for canopies, awnings, etc.).
In most cases, it is either physically impossible to bend the pipe manually, or it is possible with significant violations of the profile geometry, which complicates the further use of the product.
Therefore, they use professional or home-made machines for bending profile pipes - pipe benders.
Based on the principle of interaction with the corresponding products, pipe benders are divided into:
It should be additionally noted that, no matter whether purchased or made by hand, machines for rolling profile pipes can only work with plastic, non-fragile material, that is, with metals and alloys (read: ""). For bending products made of rigid plastic, asbestos cement, etc. they are not suitable. And soft plastic bends by hand and without effort.
Pipe benders are classified according to their purpose:
The use of high-quality tools ensures pipe bending in compliance with the quality requirements of the resulting product.
Correct use of a machine for bending profile pipes ensures uniform bending of the product and eliminates the occurrence of creases and flattening during pipe processing.
Giving the pipes a curved shape, in turn, ensures the most favorable location of pipelines and other structures, without using up extra space. In addition, in some cases, by correctly bending some elements, you can avoid the use of welding and various pipe fittings (couplings, flanges, angles, tees, etc.).
Nowadays there are a sufficient number of pipe benders on the market from various manufacturers, purposes and price category, which allows each master to choose for himself necessary tool, guided by the intended area of use and the availability of funds.
Depending on the intended purpose of the device, you should purchase:
If we list the most popular pipe bending devices in Russia, we should note such popular brands of manual roll forming machines as PG-1, PG-2 and PG-4. All of them are domestically produced and, according to the statements of the people who used them, they are not inferior to their imported counterparts.
In addition to purchasing the product, there are other options: borrow a professional pipe bender from friends or rent. In addition, guided by the relevant drawings for a machine for bending profile pipes, you can try to assemble the tool yourself.
Among the advantages of a self-assembled machine for bending profile pipes are:
To assemble the machine you will need the following parts and elements:
Thus, if you have all the necessary items and the desire to work with your hands, you can assemble your own pipe bender without any problems.
One of the popular types of metalworking equipment is machines for bending profile pipes. The great demand for such devices can be explained by the widespread use of these pipe products in many areas, and in particular in solving household problems. Cutting a profile pipe is very simple - just use hand tools. But if you need to bend it, then you cannot do without a special pipe bending machine.
You can get such equipment in two ways, namely: purchase a factory machine, which will be very expensive, or assemble a device for bending profile pipes with your own hands. Nowadays you can easily find various design schemes that are used to make homemade machines for bending profile pipes. Here we will take a closer look at the simplest and most common models among home craftsmen.
In addition, I introduced a gas stop - as a result, the outer rollers themselves return to their original position.
Do-it-yourself pipe benders for profile pipes are made by advanced craftsmen very often, despite the fact that construction market offers factory-made bending machines in large quantities.
But why spend money on expensive equipment if only a small amount of work needs to be done? For this reason, home craftsmen try to make this simple home tool with his own hand.
This work at home is not something super complicated. Almost anyone can handle it House master, having the necessary tools and a little experience.
The pipe is one of the most popular building materials, which are successfully used in home life and industry. But for construction various designs, pipes have to be bent, and here you can’t do without a pipe bender. It is this tool that makes it possible to easily change the configuration of a product made of any material.
To independently build a pipe profile bending machine, use different drawings. The priority of one option or another is usually dictated by the availability of available materials.
The front version of the bending machine consists of the following elements:
A machine for bending profile pipes is often equipped with wooden rollers. Polyurethane is also often used for this. When choosing these parts for profile bending, it is necessary to take into account the strength indicator of the tubular product. If this requirement is not taken into account, then a self-made bending machine will simply not withstand the load and will become unusable.
Industrial enterprises offer devices for bending square pipes different designs. To process assortments with a small diameter, devices that operate on a manual drive are used.
And for pipe products with large sizes they use equipment for processing profile pipes, which has a hydraulic drive. These devices are intended for large-scale events with square pipes. The most convenient of these mechanisms are bending tools that are connected to the electrical network.
Pipe benders are also divided according to the type of bend, let’s look at them.
To build a simple profile bending machine with your own hands, you will need:
To simplest form Since the structure has served reliably, it is important to construct a strong frame. It is fastened by welding or bolts. Then, in accordance with the developed drawing, the shafts and torsion axes are installed. The bending radius of the corrugated pipe will depend on the distance at which the axes of the simplest bending device are located.
The simplest machine for bending square pipe materials, driven by chain transmission. To complete the transmission of this profile bender, three gears are used. It is recommended to take the chain directly to the machine, made with your own hands, from an unnecessary car or motorcycle.
The mechanism for bending the corrugated pipe is driven by a handle. It is connected to one of the shafts to bend the profile. It also creates the necessary torque of the mechanism on the profile bender.
The simplest options homemade instruments for bending profiles at an angle, designed for processing a range of small diameters. But this technology is suitable for actions not only with aluminum profile. Such tools for bending profiles at an angle can also be used to process steel products.
A feature of each pipe bending device is the distribution of load on the profile. It is distributed gradually and evenly over the bend area. It is the same at all points of the profile. Due to this, the device does not crush the walls of the pipe assortment during bending.
The manufacturing process in each case begins with the development of a drawing. Depending on what devices are used for bending pipes, it is manufactured. The plan must indicate all structural elements: frames, pipe supports, shafts, etc.
You also need to take into account the fact that the profile does not need support from the side walls during processing. Consequently, in machines for bending it it is possible to use shafts wider than the profile itself. .
Drawings of a machine for bending profile pipes are very different. Masters willingly share them. After looking through many options, you can choose the most suitable look for the intended purpose.
IMPORTANT! Special attention Care must be taken to ensure that the drawing contains accurate measurements of each part. Otherwise, the device will not work.
After the drawing has been selected and studied in all details, you can begin the most important stage - manufacturing.
Naturally, it is easier to bend a regular round pipe gauge with your own hands, but appearance profile looks much more interesting when constructing gazebos, greenhouses, and fences.
Bend it with your own hands at home, so that when deformed, the walls do not flatten, and cracks or slightly heavier waves do not form on the bend line.
To save money, you can not buy a pipe bender in a store, but make a homemade one with your own hands at home, spending practically nothing from your savings.
The functionality of this profile bender is based on the operating principle of a rolling machine. To start creating, you will need to prepare in advance: a welding machine, a clamp (or its equivalent), rollers and a channel. Before starting construction, it is advisable to familiarize yourself with the operation process of the machine.
A homemade pipe bender for a profile pipe operates on the principle of rolling a sample through a zone under pressure.
The movement is carried out using a pair of horizontally installed rollers on the channel, which is the base, and the third roller, which is installed in the lower part of the clamp, plays the role of a deforming unit.
The assembly of such a machine is carried out according to the following scheme. The first step is to prepare the base, which can be a wide channel or by connecting a pair of narrow ones together.
After the base is ready, it is installed on top of it metal structure U-shaped. A hole is made in its upper beam, matching the diameter of the clamp coupling.
At an equal distance from the mechanism, rotating rollers are installed on the sides, on which the chain drive sprockets are attached. They are powered by hand.
A pin is screwed into the coupling, on the edge of which a third roller is attached, and a handle is welded to its upper part. This bending machine functions as follows:
The first pressure will be relatively small, but by pulling the product through this zone several times you can achieve any degree of bending.
It is worth considering that bending the product at a right angle using this method will not work.
The machine mechanism guarantees uniform pressure distribution, which eliminates the possibility of flattening or other deformation.
