In the process of woodworking, in most cases it is impossible to do without a carpentry clamp. Whether it is necessary to glue wooden blanks, secure a sheet, board, or slab during cutting - you will definitely need a clamp. On sale similar products yes, but according to reviews experienced craftsmen, they are characterized by two significant disadvantages - size limitations and low strength, since soft metals (alloys) are mainly used for their production in order to reduce costs.

Those who have to work with wood quite often prefer homemade carpentry clamps. How to make such a device with your own hands, what to pay attention to and take into account - this is discussed in the article.

There are many modifications of carpentry clamps - corner, G-shaped, edge, universal. Some are used for constant work with various workpieces (in area, thickness), others are manufactured for a specific technological operation (for one-time use).

The author considers it advisable to dwell only on those that are most often used by “home craftsmen”. If the principle of their functioning becomes clear, then you will be able to make any type of carpentry clamp with your own hands, to suit your own needs. If, of course, you turn on your imagination and think carefully.

The author deliberately does not indicate the linear dimensions of the clamps. One of their advantages self-made lies in the possibility of arbitrarily choosing the shape and dimensions of carpentry clamps. There is no standard for such devices. And it’s hardly advisable to “chew” basic things for a person who is used to (and knows how to) do everything with his own hands. The main thing is to give an idea, to “prompt an idea”, and everything else is at your own discretion.

Option #1

The simplest modification of the clamp. It is done quite quickly, but the use of such a carpentry clamp is somewhat limited. Although in most cases, when working with small-sized samples, it is quite sufficient.

The basis of the device is the frame of a hacksaw for metal. The fastening elements of the blade are replaced with long threaded rods, at one end of which there is an iron “penny” (as an option - a nut), at the other - or removable handle, or a head for an open-end wrench.

Since the frame can be adjusted in length, such a clamp will allow you to fix workpieces of various thicknesses. It is mainly used when gluing parts (), since the body of the device itself cannot be fixed to any surface. The only thing that needs to be taken into account is that if the frame is folding (the old modification of the “hacksaw”), then you will have to apply a “tire” at the bend (for example, wrap it with adhesive tape). This clamp is not entirely convenient to use, but in the absence of something more suitable, it is a good solution to the problem.

Option No. 2

Also quite simple model clamps. It is done with your own hands relatively quickly. The design of the device is clear from the figure. All you need is a metal angle and a couple of long screws or threaded rods.

If you make several of these clamps, you can use them to perform various carpentry jobs. For example, gluing long workpieces. To do this, it is enough to set the clamps at a certain interval, and lay metal strips or slats made of hardwood between the stops and the sample being processed. Another option is to mount the assembly on a workbench. The same applies to cutting blanks.

Before sawing, they are fixed on the tabletop, and their immobility will be guaranteed. This design can be modified by welding metal plates to the corners. This significantly increases the clamping area.

Essentially, for household use This modification of the carpentry clamp is one of the best. Experienced craftsmen always have at hand a ready-made set of several devices with different dimensions. Depending on the specifics of the work, you may need a clamping device made from a corner of either 25 or 45.

The versatility of this modification lies in the fact that it is made of metal and, therefore, is characterized by sufficient strength. Unlike wooden clamps, here you can adjust the clamping force over a wide range, and work not only with wood, but also with other materials - glass, plastics, iron. This is what you often have to do in everyday life.

This design can be slightly modified. For example, when processing logs on a mini-sawmill (dissolving into boards, sawing), they must also be fixed. In this case, an improved modification of such a carpentry clamp is suitable. It is enough to take strip iron as its basis, and weld the same corners at the ends.

Varieties and modifications

Here are a few more types of carpentry clamps. All these clamps are easy to assemble with your own hands.

The question is: how advisable is it to use wood as a starting material? There are arguments both for and against. But if a tree is chosen for the base of a carpentry clamp, then it must meet certain criteria.

Species – only hard (pear, oak, walnut and similar). Otherwise, there is no need to talk about any pressing force. And the durability of the clamps made from “soft” wood raises some doubts.
Humidity is minimal. Only after the material has been thoroughly dried can it be used for the manufacture of clamping fixture parts.

Good luck, reader, in making your own clamp. Don't be afraid to fantasize, and everything will work out for you!

Repair and manufacture of furniture, various wooden or metal products not possible without the use of clamps. Modern tool stores offer a large selection of these products. Conventionally, they can be divided into two large groups. The first combines clamps using threaded parts. Clamps of this group are called screw clamps. They can have a stationary bracket of one size or another or a sliding one.

The second group includes clamps that are based on wire or flat springs and are called spring clamps, respectively.

Any craftsman may need up to several dozen different clamps for his work. Purchasing such a number of tools will require a sufficient amount Money. It is much more economical to make the clamps yourself. About how to make different kinds DIY clamps will be discussed later.

Making a screw clamp

A simple screw clamp can be made by having a steel sheet 8-10 millimeters thick, a ready-made M8 or M10 threaded rod and several nuts of the same size.

First, using a template or other ready-made clamp, mark the bracket on the selected workpiece. In this case, it is possible to take into account the requirements of the specific operating conditions of the clamp and produce a bracket of the required size.

The next stage is cutting out the workpiece. The thickness and geometric shape of the blank of the future clamp makes it problematic to use an angle grinder for this type of work. In this case, it is better to use an acetylene torch or gas cutter.

At the stage of grinding the edges of the resulting bracket, an angle grinder can also be used. Align the edges according to the marking line and remove the corner burrs.

For a screw clamp, weld several M8 or M10 nuts on the short side of the bracket. Instead, you can use a piece of hexagonal rod 40-50 millimeters long with internal thread corresponding diameter.

To use the clamp, select a round rod with the appropriate thread of the required length. Weld a transverse handle to it at one of the ends.

To protect the finished clamp from corrosion, coat the surface of the product with any oil or nitro paint.

Manufacturing a screw clamp with a sliding frame

If necessary, it is not difficult to make a clamp with a sliding frame.

For work you will need the following materials:

steel strip with a cross section of 40x (8-10) mm;
threaded rod 10-150 mm long;
several nuts and round washers.

The tools you should prepare are a grinder, a drill and a welding machine, gas or electric.

The first stage is cutting the strip into pieces of the required length. We will need a stand 500 - 800 mm long, a support bar 200 mm long and a movable bar of the same length.

Using welding, attach a stationary stop to one of the ends of the long part. To ensure maximum structural strength, try to obtain a high-quality seam and select the correct welding modes.

The next stage is processing the sliding bar. It is necessary to mark and make two holes in it, one of which is round and the second is rectangular.

Making cylindrical holes using an electric drill or drilling machine will not be a problem. You just need to select a drill of the appropriate diameter, securely clamp it in the tool chuck and drill. The diameter of the round hole must be larger than the diameter of the threaded rod.

Making a rectangular hole will require a lot of time and energy. Stepping back 25 millimeters from the edge of the plank, mark a rectangle 11x41 mm along the center line. A small gap will be needed for the plate to move freely along the rack. Next, mark the centers of the holes, retreating 5 millimeters from the edge of the groove and 10 millimeters from each other. To prevent the drill from slipping, the centers of the holes must be pre-punched. Drill four holes with a diameter of 10 millimeters. Give the final shape of the groove by hand using a square or rectangular file.

Above round hole sliding bar, weld a nut with a thread corresponding to the rod. Weld a cross handle to one end of the screw, and a round washer of sufficient thickness to the other. Clean the edges of all parts from metal burrs with sandpaper and assemble the clamping fixture.

Making a corner clamp with your own hands

The manufacturing process of a number of products, such as door frames, requires joining parts at right angles. For reliable fixation of wooden or metal structures corner clamps are used.

A similar clamp can also be made from scrap materials yourself. You will need two pieces of steel angle 40x40, 50x50 or 30x50, 200 millimeters each, a piece of 10x50 strip 250 millimeters long, and two ready-made screw clamps.

Using a bench square without a block to control squareness, install all structural parts in accordance with the photo.

By using welding machine attach the corners to the strip with reverse side.

Also use a welding seam to attach the clamps to the bases for secure fastening.

Thus, you will get a convenient and reliable device that will repeatedly help you out when performing a number of jobs.

Dear readers, if you have any questions, please ask them using the form below. We will be glad to communicate with you;)

Every craftsman who deals with products and parts made of metal or wood cannot do without homemade clamps. Previously, such a tool was produced in various modifications, from specialized to universal. The main task is to fix the workpiece for processing and joining operations. Let's look at how to make a quick-release clamp with your own hands in various variations.

Angle clamp

This type of do-it-yourself metal clamp is designed for fixing two objects at right angles and connecting them to each other using any methods, however, the main purpose is as a jig for welding metal parts at the angle required for work. To make it properly , you will need the following components:

Corners should be welded at 90 degrees to metal or steel plates. We attach the worm-type structure by welding, and screw a pin-driver into the working nut in order to assemble a stop at the end. The stop must turn freely. Then we need to drill a hole on the back side where we insert a metal rod as a lever. Incredible simple design and practicality of use have become the key to the popularity of such a clamp among everyone who works with metal and products made from it.

Carpenter's clamp

Such designs, used in carpentry, there are the following types:

Standard clamp, which is the most popular or simple;
In the form of a caliper for parts small size and operational fixation;
Self-clamping clamp for milling processes and working with workpieces of various heights.

The first type is made from two pine blocks, a locking nut, rods, threaded wing nuts and thrust washers. The manufacturing process is very simple:

We cut out the working pliers from the bars, drill holes for the studs, taking into account a small amount of play;
We screw in the studs and lock them using appropriate methods;
We ensure alignment with nuts, made either in the form of wings or standard nuts for improved tension.

The second option is used when prompt fixation of small parts is necessary. Production is carried out from small bars and thin-sheet plywood. Furniture nuts and collar pins act as a worm system. One stop is stationary; we attach it to the end of the guide rail, in which we cut out recesses to fix the moving mechanism.

There are both portable and stationary versions of this design, where grooves are cut for movement with the fastening of fixed stops. The clamp is a furniture nut, a hairpin and a knob. Due to this, you can work with workpieces of any size.

The self-clamping design has a lever with an eccentric at the rotating end. We turn it at a certain angle, a quick clamp is automatically obtained. The height is adjusted with a pin on the workbench. It is made individually for each matrix, depending on its purpose and the purpose of the work being carried out.

Pipe clamp

Welding metal pipes end to end is a complex operation. It is considered simpler to weld the pipe to the finished system. The design for such cases is made of a metal angle and steel plates. The halves of such a device should be fixed using the traditional method, namely with threaded rods. As a result, you can get a fairly simple and effective design, which will greatly facilitate the work when welding pipes with various designs.

There are other types of designs, including cam mechanisms, tape and wire clamps, which can be useful for working with specific structures, including particularly fragile and thin ones. However, their production is the subject of separate master classes and articles on specialized resources.

Homemade clamps are indispensable assistants for any craftsman working with metal and wooden parts and products. Making them is quite simple and very exciting. Here it is important to follow the manufacturing technology, find the best instructions and videos. You can buy clamps, but they may ultimately not be suitable due to the specificity of the workpiece or work. This is why you should make your own clamps. Good luck working with various blanks and making homemade ones quick clamps!

If the master decides to do some work from wood or metal, then he should process the part. But this can be done efficiently only if this part is fixed very firmly with a clamp.

Old models of such a tool allowed working with only one hand, but now new models of this tool are appearing, which serves as an integral assistant to any master, and they are not only quick-clamping. but also allowing you to work with the part with two hands.

There are several types of such clamps:

Let us briefly describe each type of clamp. The first type is lever. This means that the work of such an assistant tool is based not only on axial work, but also on the work of levers. Often people also call them clamps, which allow you to quickly fix parts intended for processing.

Lever clamps do not require a master great strength, in order to clamp something with them you only need to apply a little force. And so that the parts are clamped tightly and can no longer move, it is necessary to use a lever, which will do all the work for a person.

The design of such a lever clamp is quite simple; you can even make it yourself. To do this, you will need a main frame and some element where the main clamp can be located. With the help of such an assistant tool, you can not only clamp parts and make them motionless, but also calculate the clamping force, which is important, for example, when gluing.

The remaining types of clamps differ from the first type and from each other in that they have different clamping mechanism. Many of these types of assistant tools can be made with your own hands.

How to choose the right clamp when purchasing

Choosing a tool such as a clamp is not difficult, you just need to know a few rules that will help you purchase such a tool - an assistant that will become indispensable for you when performing any type of work. First of all, you should pay attention to what the working stroke of your tool is.

In addition, it is worth paying attention to the fact that what is the distance between the elements - clamps. The higher the scores on these two points, the better this tool will be for you. This will allow you to use clamps for working with parts, both large and small.

Types of screw clamps

In such an assistant tool, the first place is no longer a lever, but a screw. This type of clamp is also popularly called a pipe clamp, since it is used for clamping pipes that are usually used for plumbing work.

Such a tool is considered very strong and reliable in the plumbing industry, as it is made of duralumin. By the way, such instruments are also used to make special holes for mounting. so that it is convenient to fasten any part to the workbench when working. Making such a tool with your own hands and at home will be quite difficult.

Now a few words about the assembly clamp, which is most often used in the construction of various objects. The main purpose of such a tool is hold any construction materials. such as, reinforced concrete slabs so that they can be processed efficiently.

This clamp is considered the most reliable for work, but if you study its design, you can easily understand that it is simple. Looking at the drawing, which reflects its constituent elements, you can easily assemble it with your own hands.

The manual clamp has several options:

There are other options for this hand tools- assistant. Popularly, such a clamp is called a spring clamp. This is due to the simple design and the same easy to use. Therefore, you can easily make such an assistant tool with your own hands.

Instructions for making a tool - an assistant with your own hands

To make a clamp, you must correctly follow the step-by-step steps described in the instructions. First, we acquire the parts that are necessary to make a tool - an assistant with our own hands.

To make a clamp you will need the following items: n several studs with threads of different diameters, nuts. that are suitable in size, several boards made of plywood, and a couple of slats.

The second step for making a clamp is to create the base. You can also make it yourself. To do this, you should secure what you have already done on the table. Then we take the bars and, applying them to the clamp, drill holes where they are needed in order to press them more tightly to the base of the table.

The third step is to make the clamp yourself. This will require those plywood boards that you prepared in advance. You must press them against the bars that are already attached to the clamp, but so that they are movable.

You must understand that the role of these boards in the tool that you make with your own hands is to act as levers in the clamps. Now using studs and nuts, all that remains is to secure this entire structure that you made with your own hands.

But when using such a tool - an assistant that you made yourself, you should understand that it is not very durable and it is difficult to talk about its reliability. But it can be perfect for many household jobs, if they are not very complex.

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Simple making of a clamp with your own hands from scrap materials.

Hello to all DIY lovers! And in this article, I want to show one of the options for making a simple clamp from scrap materials. It will take very little time to make this homemade product, but this thing will be very useful on the farm! I think everyone knows where to use a clamp, especially if you like to do everything with your own hands!

So, to make this homemade product I used:

- a wooden block (there was a piece of the block left from my previous homemade product Homemade staircase"buffet wall");

— hairpin 8 (make the length at your discretion, I took 20 cm);

— working tools (screwdriver, jigsaw, MFP, keys, crowns, etc.).

First of all, we mark the template of the future clamp on the block.

Then, using a jigsaw, we cut out the blanks.

These are the bars you should get.

Now, using an MFP (by the way, Very convenient thing for processing small workpieces) and a special attachment with sandpaper (who doesn’t have such a tool, you can just get by with sandpaper), we process the workpieces.

This is how beautiful it turned out, but to complete it I also treated the future clamp with dark varnish.

Using a crown, I made holes to hide the nuts in the block and drilled through holes.

Now let's just put it all together

And now I have such a wonderful assistant!

How to make a clamp with your own hands?

Buying clamps is very expensive. Therefore, in order to avoid unnecessary expenses, it would be useful to know how to make a clamp with your own hands. Quite often, when making furniture or wooden products, clamps in large quantities. Especially if wooden crafts are produced professionally. To make clamps yourself, you will need primitive materials at hand, which everyone has in stock. In addition, the work process itself is not complicated and does not require professional skills, which will allow you to quickly create the necessary auxiliary tool.

Diagram of the clamp: a - parts, b - assembled, 1 - rectangular hole, 2 - pusher, 3 - body wall, 4 - protrusion, 5 - hole in the body, 6 - clamping screw, 7 - movable jaw, 8 - lever, 9 – protrusion, 10 – threaded holes, 11 – screws.

What is a clamp, and is there any point in making one yourself?

A clamp is an auxiliary tool that is used to secure boards when connecting them (using glue, fastening hardware, etc.) or if it is necessary to compress them. Typically clamps are made from metal or wood. The clamp is also used to saw boards evenly, to make routing for a hacksaw, to connect various parts and elements, etc. Wherein homemade clamps are in no way inferior to store-bought ones. To understand the principle of making a clamp with your own hands, you should understand its design.

Angle clamp assembly diagram.

Such clamps consist of 2 elements - the “body” (frame) and the fixing element (movable clamp). There are clamping jaws on the moving element and the frame, and for better fixation the moving element is equipped with a lever. Lever clamps are sometimes found, but they are rare due to their complexity in production, as in industrial enterprises, and at home.

The way clamps work is simple: parts (or material) that require processing are inserted into the body of the tool, then the working material is clamped with a moving element (the clamping occurs with jaws), after which you can begin processing or working with the parts or material.

In most cases, the number of clamps required for a particular operation is not limited to 1 piece. To secure the hacksaw tightly, use 2 pcs. wooden planks– from 2 and more (depending on their length). In addition, if you need to connect parts, it is recommended to use a pair of clamps. Many people forget to remove them after completing work, which often leads to the loss of the tool. And primitive factory-made metal clamps are not cheap, which makes it economically profitable to manufacture such tools yourself. Below we will look at how to make carpentry clamps from wood and metal, and how to make a corner clamp with your own hands.

Making a wooden clamp

A wooden clamp is much easier to make than all other types of such tools. Such clamps are very convenient when performing various carpentry works.

Basic materials required for making a clamp.

To make them you will need:

pieces of boards (or plywood);
studs (which should be pre-threaded);
nuts (for threaded studs);
slats.

To make the clamp, prepare two pre-threaded studs 200 mm long and 2 studs 120 mm long. It is important that all 4 studs have the same diameter. Next, nuts are selected for the threads of the studs, and two slats are prepared. The slats should be made from hardwood. Oak would be ideal, but beech, birch or ash slats are also suitable.

Then the slats need to be made the same size. To do this, cut off all excess and grind it. Then 2 holes are drilled in each rail. The holes should be at the same points on each rail. The diameter of the holes must match the diameter of the studs.

The next stage is gluing plywood (as sponges) onto the surface of the slats. When the plywood is glued, all protruding parts are cut to fit the slats, and the plywood jaws themselves are drilled through the holes in the slats.

A hacksaw for metal before modification and clamps obtained from it after modification.

Then long slats are inserted into the resulting holes. They will act as guides.

After the guides are installed, they are secured with nuts to the rails. 2 nuts are screwed onto each guide.

Next, you should insert short pins. To make them motionless, the studs are riveted on one side. It is important that one pin is riveted from the back side of one batten, and the other from the back side of the other. Nuts are used as clamps. To make it easier to tighten them, wing nuts are used. In this case, it is important to cut the threads on the fixing studs along their entire length.

This completes the production of the wooden clamp.

How to make a metal screw clamp

To make such a clamp, you first need to prepare the materials. For the clamp body, you can use a sheet of steel approximately 1 cm thick or even and straight metal scraps of the same thickness. The length of the workpiece depends on the working distance of the clamp. For manufacturing you will need long screws or bolts M8 or M10.

Clamp assembly diagram.

At the beginning of the manufacturing process, markings of the future body of the tool are applied to the workpiece material. Often the body of the instrument looks like the letter "C". In this case, the thickness of the workpiece can be different. It depends only on the required length working area. When the markings are applied, the part is cut out. For this purpose at home use gas cutters, acetylene torches or grinder. The grinder is used for workpieces of small thickness; it is problematic to use when cutting out small shaped elements.

When the workpiece is cut, it is polished using files, sandpaper. Grinding is an important process; if you do not grind the part, there is a possibility of cutting yourself on sharp edges when working with the tool.

Then fasteners for the moving element are made on one of the sides. To do this, M8 or M10 nuts are welded to one side of the clamp body. If there are no bolts or screws of sufficient length, you can use hexagons or reinforcement rods required length. They must first be threaded. A flat flat part (on the working side) is welded to the end of the screw, which will serve as jaws. A lever is welded to the opposite side (studs can be used as a lever), which should simplify the clamping process. This completes the production of the clamp.

Another option is to make a clamp like a caliper. For this purpose, a sliding frame made of steel strip is used. The end of the strip is flattened and sponges are welded to it. Next, a movable element is made from the same strip, to which nuts are welded and a screw is screwed in for fixation.

Such a clamp is more difficult to manufacture, but it has a longer stroke and, accordingly, a larger working area.

DIY clamp. How to make a clamp with your own hands?

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A DIY clamp makes the craftsman’s work easier and saves him money.

No master can do without a clamp. Whether you are a carpenter or a mechanic who processes metal, there is always a need to use it.

This device is available in different options, from universal to specialized. Relatively recently, a new modification has appeared: a quick-release clamp. Develops compression force up to 450 kg.

The task for all types is common - to fix the workpieces for processing or connecting to each other.

Like any other tool, clamps can be purchased at the store or made yourself. The second option is often chosen by professionals. It’s easier to come up with your own design than to look for an option for individual tasks.

Homemade clamp - varieties and manufacturing technologies

Such devices are used to fix two objects (not necessarily the same size) at right angles, to connect them together in any way. These can be wooden blanks when gluing, or assembling using corners and confirmat.

However, most often, an angle clamp is used as a jig for welding metal parts at right angles.

For production you will need:

steel corner 40 mm, thickness 3-4 mm;
steel plates 40-50 mm wide;
threaded studs, preferably hardened;
rods for gates;
nuts for the worm gear;
welding machine;
drill, taps.

We weld the corners to the steel plates at a strictly 90° angle.

We attach a worm structure to each side by welding. This is the same corner with a welded-on thrust nut or thickening, in which a thread is cut in accordance with the collar pin. The width of the working gap is selected according to the potential workpiece.

IMPORTANT! If the range of sizes of the parts being processed is too wide, it is better to make several clamps. Too much movement of the knob does not contribute to a strong fixation.

A collar pin is screwed into the working nut, after which a stop is assembled at its end. As a rule, this is a design of two metal washers different sizes. The stop should rotate freely on the pin.

On the back side of the knob we drill a hole into which we insert a metal rod as a lever.

A properly assembled metal clamp allows you to securely fasten steel parts when welding work, or wooden for carpentry. The design is so simple to make - that it has become a real staple among home-made craftsmen.

Joinery option 1

The simplest wooden clamp used in carpentry is made from the following materials:

Two wooden bars and soft but durable material. Pine will do. Too much hardwood will leave marks on the workpiece with strong fixation;
Furniture nuts with wood-look lock;

Steel studs, not necessarily expensive hardened steel;

Nuts are wing nuts with threads corresponding to the studs;

Thrust washers, you can also use ordinary, inexpensive ones.

Working pliers are cut out of the bars. Holes for the studs are drilled in them strictly parallel, with a slight backlash.

The studs are screwed into furniture nuts and locked. Convergence is ensured by wings, or ordinary nuts with an open-end wrench (if a particularly strong grip is required).

ADVICE! If you make two sets of identical clamps, the scope of application will expand. Then you can use the device like a carpenter's vice.

Joinery option 2

For quick fixation of small parts, a clamp made in the form of a caliper is used.

The device is made from bars and thin plywood. The worm system is familiar - furniture nuts and a pin-turn. The fixed stop is firmly attached to one end of the guide rail. Recesses are cut out on the rail itself to secure the moving mechanism.

Having moved the bracket to the required distance, all that remains is to turn the knob a few turns, and the part is fixed. After releasing the stop mechanism, the carriage moves easily, releasing the workpiece.

The stationary version of this clamp has a rail design. On two guides installed in parallel, grooves are cut at the same distance. Fixed stops are attached to them using metal rods. They can be moved to the desired distance, according to the width of the workpieces. Fixed stops with worm gear are installed at the end of the bars.

Clamping is carried out in the usual way– furniture nut, hairpin, knob.

Joinery option 3

Sometimes it is necessary to simply press the workpiece against the table for processing. There is a self-clamping clamp for this purpose. The illustration shows how to make metal or wooden brackets.

The principle of operation is simple - you need a lever with an eccentric at the rotating end. By turning it to a certain angle, we get an automatic quick clamp. The overall height is adjusted with a pin attached to the workbench.

You can attach two clamps of this type to a movable template for mass milling of identical workpieces.

This type of quick-release clamps is made individually for each matrix, or is rearranged onto a new substrate for cutting out the next shape.

Pipe clamp

Welding metal pipes end to end is a rather complex task, requiring precise orientation of the workpieces in space. If you weld a piece of pipe to a finished system fixed indoors, the task is simplified. And welding freely lying sections requires an assistant or a special device.

In order to speed up and simplify the work process, for example when working with metal products, you will need a couple of corner clamps! In addition, after welding, the metal clamped into the clamp does not move as it would without it, and the angle remains 90 degrees.
Make corner clamp It’s not difficult to do it yourself, it’s enough to have small leftovers on hand profile pipe, a stud, and, of course, bolts and nuts, which I think everyone has.

Visually, the clamp can be divided into two parts: the base and the clamping part.

First of all, we make a base from a 25*60 corrugated pipe as shown in the photo.

Base made of profile pipe 25*60

First, you can assemble it using tacks, then completely weld the seams and clean them well with a grinder.

Then, from the same 25*60 pipe, we cut two 160 mm sections and weld them along the edges. You only need to cook from the outside and the ends, because... With inside the workpiece will be pressed and the seam may interfere.

We weld the outer jaws 90 degrees to each other.

The outer and inner clamps must be exactly 90 degrees relative to each other; after welding, make sure that they do not move or move away.

The next step is to make a mount for the clamping part.

We cut a piece from a 40*40 pipe 30 mm long and cut off one of the sides, making it the letter “P”, then weld it to the base. To attach the screw, we need to drill two holes at 8 and the third (lower) hole at 10 so that the socket wrench would fit into it (you will understand why later).

We make a fastening for the screw.

We're done with the first part, now let's move on to the second.

From the same 25*60 pipe we make internal clamps (jaws), on the outer sides I got 105 mm.

We press them with clamps to the external clamps and weld them together.

We make internal clamps.

We cut out two triangles 2 mm thick and weld them to the internal clamps at the top and bottom. We drill a through hole (in two triangles) for 8.

We weld two triangles and drill a hole.

To fasten the screw in one and the other part, we weld nuts 8 and 14 together (as shown in the photo). We make two pairs.

We make a fastening for the screw.

We screw one nut onto the screw, and for the second you need to prepare it.

We grind the screw in a circle slightly larger than the width of the nut and cut the thread at the end to 8. We put a washer on it, the main thing is that it is smaller in diameter than the screw thread, we put on a fastener welded from three nuts and tighten the bolt. The fastening should rotate freely, and the groove was made so that when the screw rotates, the nut does not screw onto it, but rotates freely.