Home-made corner clamps. Homemade Corner Welding Clamp DIY Furniture Corner Clamps

In order to speed up and simplify the work process, for example, when working with metal products, you need a couple of corner clamps! In addition, after welding, the metal is clamped into a clamp, does not go away as without it, and the angle remains 90 degrees.
It is not difficult to make an angle clamp with your own hands, it is enough to have on hand small remnants of a profile pipe, a hairpin, and of course bolts and nuts that I think everyone has.

The clamp can be visually divided into two parts: the base and the clamping part.

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

Base from a profile pipe 25 * 60

First, you can assemble on tacks, then completely boil the seams and clean well with a grinder.

Then, from the same 25 * 60 pipe, we cut off two pieces of 160 mm each and weld them along the edges. You need to cook only from the outside and from the ends, because the workpiece will be pressed on the inside 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 in relation to each other, after welding, make sure they did not move or get pulled away.

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

Cut off a segment from a 40 * 40 pipe with a length of 30 mm and cut off one of the sides, making it the letter "P", then weld it to the base. To fasten the screw, we need to drill two holes at 8 and the third (lower) hole at 10, so that the socket wrench can pass into it (you will understand why later).

We make a fastener for the screw.

We finished the first part, now we proceed to the second.

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

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

We make internal clamps.

Cut out two triangles 2 mm thick and weld to the inner hold-downs at the top and bottom. We drill a through hole (in two triangles) by 8.

Weld on two triangles and drill a hole.

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

We make a fastener for the screw.

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

We grind the screw in a circle slightly larger than the width of the nut and cut the thread by 8 at the end. We put a washer on it, the main thing is that it has a smaller diameter than the screw thread, we put on a fastener welded from three nuts and tighten the bolt. The mount should rotate freely, and the groove was made so that during the rotation of the screw, the nut would not be screwed onto it, but would rotate freely.

It is not difficult to make an angle clamp with your own hands, it is enough to have on hand small remnants of a profile pipe, a hairpin, and of course bolts and nuts that I think everyone has.

The clamp can be visually divided into two parts: the base and the clamping part.

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

Base from a profile pipe 25 * 60

First, you can assemble on tacks, then completely boil the seams and clean well with a grinder.

We weld the outer jaws 90 degrees to each other.

The outer and inner clamps must be exactly 90 degrees in relation to each other, after welding, make sure they did not move or get pulled away.

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

We make a fastener for the screw.

We finished the first part, now we proceed to the second.

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

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

We make internal clamps.

Cut out two triangles 2 mm thick and weld to the inner hold-downs at the top and bottom. We drill a through hole (in two triangles) by 8.

Weld on two triangles and drill a hole.

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

We make a fastener for the screw.

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

Fastening to the moving part

After that, we attach the screw to the clamping and main part and make a knob on it, also welded from nuts and a bar (or a long bolt). All the clamp is ready, all that remains is to paint and use it!

DIY corner clamp - video

At first glance, rather simple welding work, as a rule, requires a responsible professional approach. To obtain the highest quality results, it is necessary to additionally use special tools, devices, one of which is an angle clamp for welding, made by hand according to drawings. With such a tool, welded joints of metal products are much faster and easier.

Clamp Is a versatile device that is suitable for all types of work with metal structures. The tool is one of the most important tools for experienced welders. Its absence leads to inconveniences in the performance of work, respectively, to a decrease in labor productivity.

Welding clamps are manufactured in a wide variety of parameters, they can have a constant or adjustable throat size. Quick-clamping devices are very convenient when the clamping of metal samples is carried out by means of a cam mechanism.

It is not difficult to make welding fixtures yourself at home. Many craftsmen believe that various accessories used for the convenience of performing welding, purchased in a store, do not differ in the required reliability. It is better to make them with your own hands.

To make such a tool, you will need the following components:

steel sheet, thickness 9-11 mm;
nuts - 3 pieces;
washer of large diameter;
pipe-rolling stock, which must have an external thread similar to the thread of the nut.

Manufacturing instruction

The scheme for making a clamp in a domestic environment looks like this:

First of all, it is necessary to cut 3 strips of different lengths - 10, 25, 50 cm, of the same width - 4 cm from a metal sheet.
Next, we prepare 2 rectangular plates that will be needed to fix the moving part, the stop on the static section of the fixture.
We weld the auxiliary to the base of the clamp. Having connected all the listed elements, they should get an L-shaped structure.
Weld the next rectangular sheet to the smaller side of the fixture, weld the washers together.
We apply nuts to the movable element of the structure (we put them "on the edge"). In this case, the twisted rod to the base of the clamp must be parallel.
Welding is carried out from the outside of the first rectangular sheet. And the movable mechanism is attached from the inside along the edges.
The extreme stage of making the clamp - we weld the washers flat to the rod.

A self-made device makes it possible to hold overall structures made of pipe-rolling parts without the slightest movement.

Angle clamp

The corner fixture is a universal fixing device that is used to fasten, hold products together while welding them. Such an auxiliary mechanism squeezes the parts tightly enough at a set angle, which greatly facilitates the work of the welder.

Clamps are made in different shapes and sizes. The most convenient option are quick-release devices.

With the constant performance of welding work, it is recommended to have a complete set of tools that are excellent in design and parameters.

Corner clamp design

Such devices allow welding metal products not only at right angles. Factory fittings are manufactured in several modifications, they can be used to connect pipes at different angles - 30-90º.

Features of angle-type devices:

clamping jaws are made of greater thickness, due to which the degree of rigidity of the joints of the parts increases, the welding seam does not bend during welding;
additionally, copper clamping screws are used, which do not allow soldering of the threaded sections of the clamp when splashes of molten metal enter them, respectively, increase the operating period of the equipment;
for welding with electrodes at set angles in the areas of joining of products, the clamp makes the working area larger.

The design of the device is a base in the form of a frame and a movable mechanism. The movable part of the device is often additionally equipped with a clamping lever (screw), which allows you to adjust the degree of compression of the products.

Due to its good mobility, the device is able to fix metal products of various sections and parameters. For the most comfortable welding, increasing productivity, you can use several such devices of different configurations at the same time. Most of the tools produced are designed for welding metal samples with a diameter of up to 39 cm.

On the corner clamps for welding, special T-shaped handles are provided, which make it possible to transfer the force generated in the process of work to the workpiece. And the staples made of cast iron can withstand the highest temperatures.

When choosing an angle clamp, it is imperative to take into account the type of proposed work. For instance:

G-clamps are most often used to securely hold metal specimens with a small thickness.
F-clamps with adjustable clamping mechanism are used when processing thick metal samples.

Quick-release devices can be mounted in a garage, workshop, other rooms on work tables with a flat surface.

In technical terminology, it is these auxiliary tools that are used to rigidly fix parts in order to further carry out subsequent processing, for example, drilling holes, sawing at a certain angle. The angle clamp for welding is used when it is necessary to connect the structure strictly at an angle of 90 degrees, so that distortions and inaccuracies do not appear.

The fixture is used to rigidly fasten structures or individual parts in order to weld them at right angles. It consists of a base or frame, a movable platform, which is equipped with fasteners: screws or levers, by means of which the pressing of the workpieces is regulated. Due to the mobility of the main parts, such a device reliably holds metal structures of various dimensions.

When several similar clamps are available, you can easily form any complex structures or simple frames, for example, for, and then weld corner joints. The maximum allowable diameter of the part is up to 400 mm, that is, the 400x400 profile pipe will be clamped firmly and the gate for entering a suburban area will be welded exactly at right angles to the bases of the annoying distortions.

Nuances of construction

Clamps are produced not only for right angles, but also multi-profile, allowing welding at angles from 30 to 90 degrees... Welding angle clamp has characteristic differences:

The jaws of the clamps are thicker when compared with other analogs, so the weld seam does not warp the entire structure due to the temperature difference.
Clamping screws are made of copper or brass, as splashes of molten metal do not settle on the threads and cannot damage the mechanism.
Convenient position to securely connect the parts - the best option allows you to boil a product clamped in a clamp from three sides.
For rigid fastening of any parts, nuts with pre-screwed screws are welded onto the product, which allows you to fix structures of different dimensions.

When it is necessary to securely fix workpieces with a diameter of more than 400 mm, then slipways are used.

E. T. Bakhtiyarov, education: vocational school, specialty: fifth grade welder, work experience: since 2004: « Clamps are in demand during welding work anywhere, because the contractor's hands are busy, and parts or workpieces must be securely and very rigidly fixed at the optimal angle. "

Variations

For small parts, use a clamp for welding of a simpler design, for example, in the form of the English letter G. Such a device reliably holds small parts, allowing the welder to connect and into one piece, while the screw must be selected with a movable type penny in order to fix the parts without moving them when tightening.

F-shaped

The design of such a clamp is not as reliable as the analog in the G form, but it has a wider adjustment option: a fixed lip is rigidly attached to a metal rail on one side, and a free-running jaw has a screw with a washer at the end for secure fixation of the workpiece and a comfortable handle to secure the desired position.

The length of the rail can be different - it depends on the model of the clamp and allows several parts to be fixedly fixed relative to each other, the main thing is that their width does not exceed the length of the product.

Product base

To form a simple structure, you need to prepare three trims from a professional pipe, for example, an analogue with dimensions of 25x60 is ideal for these purposes. The length of the segments: 300, 200 and 100 mm, respectively, the small one is placed in the middle of the large one and tacked in several places. It turned out a base with a width of up to 180 mm, now, stepping back from the larger edge, we cut corners at 45 degrees.

A piece of no more than 150 mm in length is welded in the middle of the long part of the base - a screw and nut will be fixed here to secure the parts. Now we will make guides that will serve as stops when fixing. All the joints of the resulting structure must be boiled, and the seam joints must be cleaned by putting a special stone on the grinder.

Clamping mechanism

At the end of the straight trim, coming from the previously made base, measure the required distance, weld the nut with the screwed in. To protect the thread from damage by flying sparks, generously lubricate the entire screw with technical vaseline. Cutting off two identical parts with a length of no more than 100 mm, we cut the ends at 45 degrees, then we dock and weld the seams. The result is a clamping bar.

A metal plate with a thickness of no more than 5 mm is welded at a verified distance from the inner corner of the clamping device, a hole is previously burned into which the screw will enter. When the threaded end of the screw emerges from the perforation, a retainer is welded to it, and on the opposite side a handle for rotation.

Making on your own

As mentioned earlier, the design of the angle clamp is simple, and the material is metal. We offer the following algorithm of actions for homemade production:

To form a solid base, we use a metal sheet with a thickness of 8-10 mm. For fixing, we use a corner of the required size. All fastenings are done by welding, because the threaded version loses its rigidity over time.
For a screw clamp, 2-3 nuts are used, welded together. At the same time, we additionally manufacture a bracket with a thickness of 30-40 mm, with a threaded hole in the center. Fastening is carried out using a bolted connection, because when the thread is broken, such a structure is easier to replace, and not to redo the product again.
Forming the corner - we pay the main attention to the location of the clamping brackets, when connecting, we adjust each corner to size - first we weld the first one to the clamp, then we apply the second one, clamp it tightly and weld the bracket.
Check the smooth movement of the inner base - you need to install guides on the side to facilitate movement. To do this, cut a groove along the bisector of the corner with a width of at least 8 mm.
Now we drill a hole in the upper base, insert a bolt with a freely rotating nut. The base of the clamp should move without effort, so the thread on the bolt is cut in such a way that the threads end at some distance from the head.

This completes the work on the manufacture of a metal corner clamp - in the process of welding, such a structure will be useful, since it will reliably fix the parts to be joined and speed up the process. Having carefully studied the options offered on the Internet, users are independently able to make the desired product, which will be a useful addition when repairing structures or metal parts.

Clamps refer to helper tools that tightly squeeze the parts together or fix the workpieces during their processing to any base. Various types of these tools can be found in every workshop. To fix the angle between structural parts, DIYers use an angle clamp. At the same time, in order to save a home budget, the tool is made by hand.

What is an angle clamp?

The tool is made of duralumin, therefore it is very durable. It is convenient because has special mounting holes, with which it can be fixed on the workbench. Corner clamps are used most often to fix frame parts, corners or other similar structures. A tool is often used during furniture assembly. Carpenters, turners, locksmiths and welders can take the corner clamp as assistants. It will also come in handy for work at home.

Tool construction:

Clamp with two stops.
Clamp block that has good mobility.
Linkage mechanism.
Screw for stiffer fixation.
Straps and sliders to accommodate a weaker clamp type.

An integral characteristic of each clamp is the movable part of the stop.

Making a clamp with your own hands

A factory tool is not cheap, and a home craftsman can hardly manage with one size of such a tool. Therefore, many make corner clamps with their own hands. At the same time, saving the home budget is not the only advantage of a homemade tool.

You can create with your own hands:

the necessary strength of the device;
equipment for fixing metal parts;
clamps of all sizes and varieties.

If the work is not difficult, then the tool can be made from simple and cheap materials.

Plywood corner clamp

If you do not need to fix the parts very rigidly, then the device can be made from plywood with your own hands. This method is the simplest, easiest and most inexpensive.

To make a tool you need:

Prepare pieces of plywood 1.5 cm thick and 10x10 cm in size.
Divide the squares into two diagonally.
Mark holes at a distance of 2 cm from the edge and drill with a diameter of 40 mm.
Cut off the side along the holes so that excess glue under the clips can be conveniently removed.

The plywood tool is ready. It is not necessary to count on its long-term operation, but it is made from the simplest materials at hand.

DIY making and assembling a corner clamp made of wood

For those with even the most basic woodworking skills, it will be easy to make a wooden tool. For this, first of all, choose the right material from which the clamp will be made. It is better to stop the choice on birch, oak, ash, hornbeam or beech. The wood must be free from unevenness, damage and knots. Its moisture content should be no more than 12%.

From the selected material you will need to prepare:

two plates 15 cm wide, 20 cm long and 2 cm thick;
two bars 2 cm wide and 25 cm long;
metal bolts;
self-tapping screws with a diameter of 5 mm (2 by 20 cm long and 2 by 12 cm).

After everything is prepared, you can start assembling the device with your own hands:

Place two long slats on the table. Wherein one should fit edge down, and the second is up.
Drill holes for the connection in the rails using a drill. They must match for both parts.
Attach one plate to the lower bar and fasten the second parallel to it. It is used for this self-tapping screw passing through the elements, which will regulate the degree of clamping of the part between them.
Drill holes at the ends of the rails and attach solders or plates to them. The angle between the elements must be 90 degrees.

The production and installation of a corner wooden clamp is completed, now you can check it in operation.

Metal type of tool o has good fixation rigidity and has a long service life. The device consists of a reliable sturdy body, a movable mechanism and a screw that provides rigidity of fixation.

Using a metal clamp, you can:

fix structural elements at different angles;
carry out preliminary installation of products;
align structural parts relative to each other.

In addition, metal angle clamps are widely used during welding. Such tools are divided into two types:

Two-dimensional.
Three-dimensional.

Using the fixture you can fix two elements of the metal structure and then fix them by welding. Even the simplest type of such equipment will make welding more comfortable, ensure high quality seams, facilitate various manipulations with construction details, and significantly save time.

It is quite simple to make a metal corner clamp with your own hands. To do this, you need to prepare:

steel sheet 10 mm thick;
nuts - 3 pcs;
steel sheet with external thread according to the size of the nuts;
washers of large diameter.

Manufacturing technology:

Cut two blanks 50 cm long and 4 cm wide from the sheet.
Weld the auxiliary part to the main part of the part in the form of the letter "G".
Weld the support element flat on the short edge.
Weld three nuts together, placing them with their ribs against the moving part. In this case, the screwed-in rod should run parallel to the base of the device.
Weld all parts along the outer edge by inserting a strip of the tool between them.
Attaching a movable bar structure, weld along the inner edge.
Weld large washers to the edge of the metal rod.

The work on the manufacture of the corner metal clamp is completed. When carrying out carpentry, locksmith or welding work, it can be used to securely fix the structure. Such the tool is able to replace one assistant and speed up the time of work. And its movable elements will allow you to connect the parts at the required tilt and angle.

Having studied the types and options for creating corner clamps, it will not be difficult to make and assemble a tool with your own hands. In this case, the type of structure should be selected depending on the required fixing strength. Such a device will be useful both in the household and in professional activities.