Do-it-yourself clamps for gluing wood: how to make them from wood and a profile pipe? 105 photos of the best design options

09.20.2019 Author: VT-METALL

Issues discussed in the material:

• What is a clamp
• What types of clamps exist by design?
• How do clamps differ in structural features?
• What to consider when choosing clamps

High quality metalwork and carpentry work is achieved through the use of suitable tools and accessories. The main thing during such operations is usually a machine, a workbench or a securely fastened table, but this is not enough; devices for clamping the workpiece, that is, various types of clamps, are also needed. You will learn about them in more detail from our article.

What is a clamp

A clamp is an auxiliary tool used to secure parts. In this case, the latter are pressed against each other or against a certain surface. This device is actively used by carpenters and welders and usually includes two parts: a frame and a clamping mechanism. Thanks to the frame, a certain rigidity of the structure is achieved, while a clamping device is necessary to secure the parts.

In fact, in their design, clamps are similar to a bench vice, the only difference is that there is no need for permanent installation. Note that such a tool can have different designs and dimensions, due to which a certain compression force is achieved.

Different types of clamps can be used for a wide variety of applications. Thus, they greatly simplify gluing parts. The fact is that during such work the surfaces must be pressed tightly against each other for 24 hours. It is simply impossible to achieve a high-quality connection while holding the elements of the product with your hands all this time. In addition, this device can be used as a structure that presses devices to the surface - this is the way familiar meat grinders and table lamps are attached to the table.

VT-metall offers services:

If we compare a clamp and a vice by design, the first one will turn out to be more flimsy, and therefore the fixation with its help turns out to be less reliable. Also, do not forget that the capabilities of this device are limited by the size of the frame. Therefore, if it is necessary to firmly fasten various workpieces, several clamps are used simultaneously, in some cases their number increases to a dozen. Experts who use this tool even say that you can never have too many clamps.

Wood or metal can be used as the material for making this device. Metal structures are considered more reliable, as they have greater rigidity and are not afraid of moisture. Regardless of the material and type, a clamp makes it possible to secure elements on a specific surface, and also, importantly, regulate the pressing force. The last feature plays the most serious role when working with soft materials, because a dent may remain on them.

In a professional environment, this tool is often called a clamp.

If we talk about the types of clamps, they can be:

• g-shaped;
• end;
• t-shaped;
• f-shaped;
• tape;
• pipe;
• spring;
• automatic;
• corner.

Note that each type is used to perform a specific task, since there is no tool yet that can perform all functions at once.

Irwin Quick Grip XP 10505946

The American model, made in China, tops the rating of quick-release clamps. The uniqueness of the device lies not only in its high price, but also in its operational parameters. In particular, in the colossal clamping force, which can reach 272 kg. In comparison with other “inexpensive” analogues, the indicator of this model exceeds the declared one by 2-3 times. In addition, the Irwin Quick Grip XP 10505946 can handle workpieces up to 90 cm wide.

It is made in the form of a durable, well-thought-out structure, built on a platform of an I-beam steel guide. Operator safety is achieved through a smooth release mechanism and an adjustable foot. The latter, in turn, acts as an additional stability stabilizer, facilitating the vertical position of the clamp on the workbench or work surface.

Quick-release clamp Irwin Quick Grip XP 10505946 Source onlinetrade.ru

Quick removal of the jaws is carried out by pressing the Quick-Change button. The operator then has the option of installing the accessory or converting them to a spacer position. The likelihood of damage to the workpiece due to the pressure of the jaws is minimal. They have wide pads that evenly distribute the clamping force. It should also be noted that they are adjustable in height.

Price range for the model in construction stores: 3,550 – 3,900 rubles.

Specifications :

• Compression force – 272 kg.
• Clamping depth – 95 mm.
• Clamp width – 900 mm.
• Type – F-shaped, pistol.
• Dimensions LxWxH (packed) – 1,150 x 260 x 40 mm.

Important! The model has excellent, one might say unique, performance characteristics. Durable, reliable and safe, the only drawback is the relatively high price (3,800-4,500 rubles).

Types of clamps by design

According to the design, among all existing clamps there are several types:

1. Cabinet.

In this case, the tool is used to fix the elements being processed on oblique and parallel planes. The clamping force is provided by the body of the clamp, which explains the name of this type. This device looks like two metal rectangular beams, fastened on one side with a strong strip. One bar is fixedly attached to the bar, while the second is equipped with a tightening screw, due to which it can move freely. The opposite part of the bars represents the lips.

To clamp parts, metal bars are brought all the way into the workpiece and the screw, which is equipped with a convenient handle, is tightened. This model is used most often by craftsmen.

2. Magnetic.

This model is usually used in the welding process, since it allows you to pre-fix a pair of metal workpieces, for example, tubes, profile angles, etc.

Such a clamp may look like an isosceles right triangle, pentagon or hexagon. The edges of the clamp are equipped with magnetic inserts, thanks to which the metal elements are fixed.

3. Screw.

This is a fairly common type of auxiliary tool, which has different designs, but the main clamping force is always achieved by a screw with a handle and a heel. The model may look like a body clamp, where the clamping screw passes through the block, and the nickel acts as a lip. It is also possible to manufacture a body in the form of a G or “P” type clamp, where a clamping screw with a coin passes through one of the “legs”.

Forged screw clamps are often found, for the manufacture of which tool steel is used. The fact is that after forging and hardening, the metal is characterized by increased strength, which means that the tool made from it is the most reliable.

We recommend articles on metalworking

• Steel grades: classification and interpretation
• Aluminum grades and areas of their application
• Defects in metal products: causes and search methods

4. With ratchet.

Outwardly, this type most closely resembles a large clothespin. The device is clamped by hand, and opening the lips becomes impossible due to the ratchet mechanism. The clamp can be loosened using the pawl lever or button provided for this purpose.

5. Hydraulic.

This clamp, like a screw clamp, has a G-shaped body. The difference is that the screw of this type is replaced by a device similar to a jack, the rod of which has a nickel on it.

6. Vacuum.

This tool is a frame on which vacuum suction cups with built-in hand pumps are installed parallel to each other.

A similar model is necessary for positioning two flat parts in the same plane, for example, a pair of MDF sheets or metal.

7. Trigger.

This type is also known as quick-clamping. This is an F-type clamp, where one jaw is fixedly fixed on a metal bar, and the second is equipped with a handle like a pistol, with a lever reminiscent of a weapon trigger, and a special lock flag. If the flag is turned to the position in which the tool is unlocked, the movable lip can easily move along the bar.

Otherwise, you can press the parts by pressing the lever. Moving the lip in the opposite direction is impossible due to the locking mechanism. Generally speaking, this tool is very similar in principle to sealant guns.

Kraftool KL- 32019-120-300

Another premium quick-release clamp. Clamping in it is carried out due to a ratcheting mechanism with an eccentric hinge, which allows you to obtain a clamping force of up to 120 kg. Another distinctive feature is the quick load release button, which makes working with the tool much easier.

Professional clamp Kraftool KL- 32019-120-300 Source hummerplus.ru

The main working mechanism is located on a steel all-metal guide frame. It is along this that the floating polished pressure jaw moves. The possibility of damage to the integrity of the surface is eliminated due to rubber protective pads.

Price range for the model in construction stores: 2,550 – 2,900 rubles.

Specifications:

• Compression force – 120 kg.
• Clamping depth – 120 mm.
• Clamp width – 300 mm.
• Type – F-shaped.
• Dimensions LxWxH (packed) – 450 x 159 x 37 mm.

Important! In terms of operational characteristics, the Kraftool KL-32019-120-300 model is practically no different from the models from the Gross catalog (presented below). However, in terms of quality indicators and service life, they differ significantly from each other, which is where the difference in the price range comes from.

Types of clamps by structural features

Due to differences in design, different types of clamps make it possible to effectively fix parts made of a wide variety of materials of specific shapes and sizes at certain angles. Some of these tools are designed for welding work, others can simplify the carpenter’s task, and others cannot be avoided when gluing flat parts end-to-end.

Today you can find many different clamps on sale, including subway clamps, but it’s worth mentioning the closing model, because it occupies a separate place among all types of this auxiliary tool. In fact, we are talking not so much about an additional device, but about an independent installation element. It is used to attach the mounting profile to I-beams when holes need to be drilled.

From the point of view of structural features, the following types of clamps are distinguished:

• G-shaped.

An excellent option for working with metal. Since this model is forged and made from tool steel, it boasts high strength and is suitable for temporarily holding together multiple metal parts. Due to the fine thread pitch, good clamping is achieved without backlash, so working with workpieces is greatly simplified and periodic tightening is not required.

These clamps allow you to glue parts, press sheets of metal together for welding, and secure a flat element of a product while processing with a grinder or file. It is important that fixing the workpieces does not require much effort from the specialist.

• End

In its design, this model is close to type G clamps. It has a cast or forged body, three screw clamps with heels located at right angles to each other. This device is excellent for working with wood, as it allows you to achieve good adhesion of surfaces and their mutual fixation. For this reason, end clamps are most often used by woodworkers when gluing trim to the ends of furniture.

However, there are also some disadvantages here, for example, some inconvenience of use caused by the fact that you have to simultaneously hold the adjustment, tighten the screws and hold the clamp.

• T-shaped.

The main difference between this clamp and all the others is the presence of a guide profile in the form of the letter “T”. Its length in some models is more than a meter. Movable lips are fixed to the profile, and the clamp is provided by a screw with a handle, which is connected to the second lip. This clamp is suitable for securing sectional workpieces and is the most suitable tool for installing window frames and making furniture.

• F-shaped.

This design is less reliable than the already described G-shaped type of clamp fastening. Despite this, this clamp is used very often, as it has a wide range of adjustments. At one end of the metal rail there is a fixed lip, and at the other there is a lip with free movement, and a clamping screw with a washer (nickel) is also installed on it.

If adjustment of the sliding frame is required, the tool is completely released from the load. To clamp the parts, the screw foot is pulled tightly to their surface and the screw is tightened. In this way, the angle of the bracket changes, the latter becomes motionless, and reliable fixation is ensured.

The length of the slats depends on the model and often reaches several tens of centimeters. In this way, it is possible to fasten several parts, but only on the condition that their total width does not exceed the length of the given strip.

A similar device can often be found in a carpentry workshop, however, specialists usually give preference to other types, since F-shaped models have to be worked with two hands at once, which is not always convenient.

• Tape.

An excellent auxiliary tool for carpenters and coopers. Such a narrow specialization is easily explained: this type of design includes a tension mechanism and a rigid tape or belt, which allows for uniform distribution of the load over the entire surface of the attracted elements. A similar clamp is most often used in the manufacture of wooden barrels (during fixing rivets), assembling round chairs and frames.

• Pipe.

The main element of this design is a tube with a fixed lip. The second lip is not fixed and moves along the pipe. To fix it, a special stopper is used, and a screw with a handle is used to tighten the workpieces. This model is suitable for more convenient gluing of large panels in the production of countertops and doors. Typically, at least a pair of such clamps are used simultaneously, and they are installed on opposite sides of the boards. In this way, it is possible to align the workpieces and securely secure their elements.

It is impossible not to mention the rather large length of this model, which causes certain difficulties in operation. Therefore, although this tool is indispensable when assembling panels, it has to be abandoned when you need to fix small parts on the tabletop.

This type of clamp is usually attached to standard steel water pipes. This is very convenient: if you need to glue a very wide shield, all that remains is to replace the tube of the factory tool with a longer one.

• Spring.

The main advantage of this type of clamp is that it can be used even with one hand. The design of this clip is similar to a large clothespin. Let's say right away that this is the least reliable of all the options, since the parts are pressed by an ordinary spring.

In other words, it is not possible to regulate the clamping force. The elasticity of the spring gradually decreases, which means the pressure exerted on the workpiece decreases. This design also has one more significant disadvantage, namely, a small grip. Therefore, this type of clamp is usually used in cases where large clamping force is not required.

• Pistol type clamps.

Professionals value automatic clamps for their ease of use. This type of model looks like a metal bar with a removable fixed lip installed on one side. At the other end there is a movable lip equipped with a trigger, that is, a special mechanism with two handles. To tighten a trigger-type clamp, you need to squeeze the handles - according to the principle of operation, it resembles a pistol, which is what the name of this model is associated with.

With the help of clamps of this type, it is possible to fix workpieces with one hand and at the same time provide considerable clamping force. In addition, you can use a similar clamp as a spacer if you turn the lips in the opposite direction. This versatility makes this clamp very popular. However, you need to understand that the mechanism gradually wears out, which is why the level of maximum force for compression and expansion drops.

If you want to use automatic models in your workshop, we recommend that you pay attention to those that allow rearrangement of the lips. Then you will have the opportunity to both pull the products together and push them apart. In other words, you will be able to disassemble tenon joints and perform specific complex gluing.

• Angular.

These clamps have a special design, so they are always easy to recognize against the background of other models. This type of clamp can be magnetic or screw. The second option is only suitable for connecting boards or wooden blocks at right angles.

An angle of 90° is achieved thanks to a powerful cast body with a pair of protruding heels. Usually only one screw is used for clamping. Not only does this design allow you to set an even angle, the through holes provided in its main part make it possible to attach this tool to a work table or workbench.

If you need to fix metal pipes, corners or profiles at right angles, choose a corner magnetic clamp. This type of model is an isosceles right triangle with magnets on its sides. This clamp does an excellent job of pre-fixing metal parts, allowing you to accurately maintain the angle between them.

Gross 20700

Next in the “Best Clamps” rating is the Gross 20700 model. It refers to quick-clamping, rack-and-pinion devices that operate on the pistol principle. Designed for working with wooden and metal workpieces, the width of which can reach 150 mm.

Equipped with a trigger control mechanism, which allows all manipulations to be carried out with just one hand. Assembled on a guide made of carbon steel. Impact-resistant plastic is used for the housing material. This combination of materials provides the tool with reliability and a long service life.

The most inexpensive model from the middle price segment Source static.chipdip.ru

Following the principle used on other models of the brand’s line, metal pressing jaws are “shod” with rubber protective pads. This technique guarantees the preservation of the surface of the processed workpieces.

Price range for the model in construction stores: 1,350 – 1,500 rubles.

Specifications:

• Compression strength - no data.
• Clamping depth – 90 mm.
• Clamp width – 150 mm.
• Type – F-shaped.
• Dimensions LxWxH (packed) – 390 x 250 x 3 mm.

Important! An excellent option for home use. In the product description, the manufacturer does not indicate the clamping force of the jaws. However, user reviews (on which this rating of the best clamps is based) prove that the effort is quite enough to work with medium-sized workpieces.

Types of clamps, clamps and other similar devices for welding work

The clamps used during welding work are significantly different from other types and are a good replacement for a vice. The fact is that welding on a metal table is always associated with unintentional bending of the weld seam, or it is possible to change the angle at which the parts of the product are fastened together. Therefore, the primary role is played by strong and durable fixation of the elements being connected.

Welding clamps differ from conventional corner clamps in a number of ways:

• They have thick clamping lips, which increases the rigidity of the joints. As a result, the seams cannot bend or other distortion of the product’s shape occurs during operation.
• This type of product has copper or copper-plated clamping screws, which ensure that the threaded part is not destroyed due to particles of molten metal. The fact is that the splashes do not stick to the copper coating, which means the service life of the clamps increases.
• This device expands the working area at the joints of parts. That is, it allows you to freely use the electrode at the desired angle.

In fact, this type of clamp is universal and can be used during any work with metal. Of course, welding is possible without such a device, but you will have to sacrifice convenience and productivity.

Welders use such clamps of different shapes and sizes, with a constant size of the throat and an adjustable one. The most convenient are quick-release clamps, where a cam mechanism is responsible for the clamping. However, you should not stop at one type and type of clamps - a specialist should have a whole range of different tools on hand. The fact is that the assembly of one structure may require the use of a number of different devices at once.

It is worth noting that welding clamps stand out from clamps in their greater convenience and suitability specifically for working with hot metal. To fix the elements of the product, you need to squeeze the fastener handles. The dimensions of the pharynx are determined by changing the position of the screw in the clamp handle, pin, or by other possible means.

According to the operating principle, it is customary to distinguish screw, wedge, eccentric, spring, and lever types of clamps. But let’s say right away that most often among all the named models, screw-type devices are used. The fact is that they have a simple design - the simplest option is a bolt with a nut, which is inserted into the holes of two plates. It is between the plates that the welded parts of the product are located and clamped.

Ties allow you to reduce the distance between the edges of dimensional parts to the desired value. Note that the length and method of fastening of such devices are selected in accordance with the operation performed.

Spacers are used when you need to align edges, give parts a certain shape, or eliminate small defects.

Installation devices, as the name suggests, allow you to place an element of the future product in the required position. These tools are divided into stops, squares, prisms, templates, based on their design and functions.

Despite all the variety of types of clamps, the most convenient are the models that allow you to install and immediately secure the part in the required position. The fact is that such tools make it possible to simply insert the product, tighten the screws or eccentrics and not worry about carefully setting the parameters.

As you understand, the quality of welding largely depends on the additional tools used. With the help of the latter, you can significantly make your work easier, avoid inconsistencies and difficult adjustment of product elements. The clamps used for this have long proven themselves to be the best, having proven their reliability in practice.

Patriot QRP-450

Quick-release clamp for working with wood and metal. It belongs to the F-shaped type, the principle of operation is based on a trigger mechanism that works according to the pistol method.

The main mechanism is located on a steel guide with reinforcing ribs, which ensures relatively good quality and reliability of the product. The model is a universal type that can be used for work with compression or tension of workpieces.

Leader among budget models Patriot QRP-450 Source vseinstrumenti.ru

The clamping force is not mentioned in the manufacturer's documentation, but based on user reviews, it can be judged that the tool successfully copes with rails, picket fences, and small workpieces of a similar nature.

Price range for the model in construction stores: 550 – 780 rubles.

Specifications:

• Compression strength - no data.
• Clamping depth – 60 mm.
• Clamp width – 450 mm.
• Type – F-shaped.
• Dimensions LxWxH (packed) – 1,120 x 475 x 110 mm.

Important! A good and inexpensive option for one-time or individual work in carpentry or a locksmith workshop. In terms of price-quality ratio, it shows one of the best indicators, which is the reason for being included in the rating of the best quick-release clamps.

How to choose the right clamp

Typically, working with workpieces requires high-quality fixation. Sometimes it is possible to secure a part with just one auxiliary device, but most often you have to use several clamps at once. The modern market for clamps offers a wide selection of models from different manufacturers.

The design of the clamp is simple, so choosing such a tool is not at all difficult. First of all, it is worth understanding what working stroke of the clamping part you will need for certain jobs. Next, make sure that you choose a high-quality device without defects or cracks. Screw the rotating mechanism to the end, check the tightness of the lips, and do not forget to evaluate their evenness.

During compression, lips can leave marks on a soft surface, so it is better that the kit includes gaskets. If the latter are not available, you will have to make them from scrap materials, taking into account the fact that good gaskets should be softer than the part being clamped.

Also, when choosing a clamp, pay attention to the following features of the product:

1. Clamping method . If we are talking about classic models, then they use a screw mechanism to move the moving part of the device. The clamping force is adjusted manually, so the technician will have to use both hands at once while working. From this point of view, quick-release clamps are considered more convenient, because they allow you to use only one hand. This nuance is most relevant when work is carried out on a ladder or stepladder.

2. Clamping force . The reliability of fastening the part depends on the clamping mechanism, namely on its force, which can be from 20 kg to 1 ton depending on the model you choose. Therefore, when purchasing a tool, you need to clearly understand what operations you are going to perform with it and what materials to work with. Thus, securing steel parts is impossible without a powerful clamp, especially when it comes to working on a milling machine.

3. Functionality . Among all the clamps on sale, you can find models that compress the part, as well as tools that can, among other things, act as a spacer. For the device to be multifunctional, its lips must rotate 180°.

4. Weight and materials . If you need a very durable clamp, it is better to choose products made from steel and cast iron. However, we should not forget that such materials have considerable weight, so a number of manufacturing companies prefer to use cast aluminum and synthetic materials that combine strength and low weight.

For a home workshop, it is recommended to choose clamps of small size and weighing no more than 1 kg, while machine-made models can weigh 5 kg.

5. Rust treatment . This tool will easily last for many years, but only if it is protected from corrosion in production. Usually the metal is coated with paint and varnish materials or the galvanic method is used. Powder paint protection is considered the best option, while the mechanism can operate smoothly during blackening and oiling.

6. Additional accessories . All kinds of additions that many manufacturers equip clamps with make the work of the master easier. An example is the T-shaped handle, which allows you to adjust the clamping force. You can also often find rubber lip linings that can protect a part made of soft material from deformation during operation.

Purpose

A clamp is a lightweight auxiliary tool that helps secure several parts both to each other and to another surface. During work, it is often necessary that workpieces and other parts be securely fastened in one position. This device is widely used in welding and carpentry.

The design of the clamp is very simple; it consists of only two parts - a frame and a clamp. A high level of rigidity is achieved precisely due to the strength of the frame, and the clamping mechanism carries the main functionality and secures the parts.

Locksmith machines have a similar principle of operation, which can also be used to perform gluing. But it is more correct according to GOST and more convenient to do this with clamps.

Do-it-yourself corner clamp for welding

The corner type of clamp has a fairly simple design, so you can make it yourself. To achieve the best results, it is recommended to use iron parts.

First of all, you need to prepare the base of the tool from a sheet of metal about 10 mm thick. Next, you can move on to the base of the structure; to do this, weld two corners at an angle of 90°. Note that at this stage of work, high accuracy is very important, since the corners will play the role of stationary clamping jaws.

Before welding the corners, do not forget to weld nuts to each of them - they are necessary for moving the movable jaws. Drill holes for bolts in a couple more corners. Next, the bolts are screwed into the nuts and pull the movable angle, resulting in the effect of compression and stretching of the fasteners. If you want to increase the length on the sides of the grip, you can make a structure from two metal profiles that looks like a compass. In this case, at the end the profiles must be connected with a sleeve and a bolt.

When you have prepared two bushings that match the shape of the profile, you need to make a clamping screw on one side of the bushing and secure the prepared corners on the other. The last step remains - put the bushings on the profiles and secure them with screws. In this way, it is possible to achieve a large distance between the grips, which means you can work even with large products.

If you decide not to buy, but to make this type of clamp yourself, you will certainly save a lot. But it is better to purchase a truly reliable mechanism in a specialized store or order it from professionals.

Factory-made tools are significantly superior to home-made ones in terms of workmanship and clamping capabilities. It is worth noting that their price is not that high. If you decide to order such clamps from a specialized company and at the same time can agree on the supply of a large volume of tools, for example, a set of G-type clamps, you will also be able to save a lot of money. All that remains is to find a truly reliable company that can fulfill your order efficiently.

Handle, screw and main assembly

Square blanks of 25 mm are made and 100 mm are cut for each handle. Mark the central part and drill out a fragment of 10.5 mm 60 mm using a drill. As an analogue, you can drill a fairly wide hole and then cover it with epoxy resin. But this method is considered not reliable enough.

The workpiece is sanded to make a more comfortable handle and glued to this clamping screw. Proceed to the main assembly. This is a simple task to apply the film to the stationary head. The lock nut is strengthened and end caps are made. They should prevent the head from slipping off the rod. Therefore, it is advisable to screw a small plate onto the heel. This prevents the nut from slipping out of place. This acts like a hook.

It catches on the nut. The work can be considered completed. Steel clamps are somewhat heavier, but they are also reliable. The clamps use the same rod. They are quite durable and last a long time.

Varieties

The purpose of this publication is not to build something like an encyclopedia of mounting clamps - there are many types of them, and there are even more patents for new, “super-super” ones. Our task is to show which clamps are most needed in a home workshop, and how best to make a clamp without wasting a lot of material and time.

The most common types of clamps in handicraft production are shown in Fig:

1. G-shaped (G-cramp; G-clamp) is the most reliable, reliable and cheapest of the general-purpose clamps. Disadvantages: it takes a long time to tighten and can turn the parts being glued if the stop hinge is of poor quality or not maintained. The latter is quite important: an adhesive layer that has not set is a good lubricant, but it is undesirable to separate and recompress the surfaces being glued together, as the strength of the dried joint decreases sharply. In addition, a regular G-clamp does not hold round parts well, so a special pipe clamp is used to secure pipes or a round profile for welding or butt soldering (see next figure). Assembled from ordinary structural steel s=(2.5-4) mm, such a welded clamp provides reliable fixation of pipes up to d(120-150)x(1.5-4) mm.

   
   Clamp for welding and butt soldering of pipes

2. F-shaped (F-cramp). Quick-clamping, operates on the principle of jamming the sliding stop in the dead center position. Pressure until it is firmly secured is most often provided by a screw clamp, as in a G-shaped clamp. An even “softer” and faster clamping, but less reliable, is provided by a trigger-eccentric clamping mechanism, see below. The most versatile and widespread of the clamps. The main disadvantage is that due to vibrations and shocks during operation, it can self-unclip and release. Or, on the contrary, it jams tightly, and when wedged with a hammer blow (see below), either the clamp or the part “shoots out”. It is not suitable for adaptation to butt welding of pipes: the jaws are driven by indirect heating and the pipe joint moves apart.
3. C-shaped (C-clamp, fixing tongs). A fairly narrowly specialized tool. The main purpose is to compress the parts to be glued. Simple C-clamps are made with a spring clamp. The trigger-lever clamp allows you to precisely set the clamping force.
4. Angle clamps for welding linear parts (pipes, profiles) at a given angle. There is no completely established special Anglo-American term. The most commonly used are welding clamp and dead-lock clamp.
5. Joiner's bench - a carpentry clamp for joining panels from boards, slats and beams, assembling units from shaped parts (for example, railings with balusters). On the trail. rice. a rail clamp is shown; There are also rack and pipe ones, see below. Please note that pipe clamps are sold under the name “pipe clamp”, and clamps for end-to-end welding/soldering of round timber should be searched for under the query “welded clamp”.
6. E-shaped (E-clamp). A highly specialized tool for edging carpentry with glue. If you need to carefully glue an edge on existing valuable furniture/interior design, it is difficult to do without an E-clamp.
7. O-shaped or tape, or crimp grip (loop stay, loop brace). Band clamps are most often used by virtuoso carpenters and furniture makers-restorers. If you can fetch up to $1000 or more for a well-restored antique Viennese chair, then for a slightly skewed or wobbly chair they will fetch, at best, 15-20 of the same ones. Making a frame for a large painting or photograph without a tape clamp is also not so easy.
8. Lever-plunger (precision clamp). When the trigger is pressed, the plunger (pusher) with the clamping stop moves smoothly forward. The trigger is released - the plunger is fixed by a spring-loaded slide, which becomes in the dead center position. Pressing again releases the slide and further advances the plunger. A good lever-plunger clamp can securely clamp a chicken egg without damaging its shell. In a home workshop, such precision clamping is unlikely to be needed, but suddenly a good precision clamp can be obtained from a mounting gun for tubes with silicone, etc. viscous compounds. A fixed jaw can be easily installed into the opening (window) for the neck of the tube, and a movable one is mounted on the rod instead of the standard pusher. If necessary, both can be removed and the tool can be used for its intended purpose.