RU2395361C2 - Procedure for connecting parts of sheet, mainly flanges to air ducts and facility for implementation of this procedure - Google Patents

Abstract

FIELD: metallurgy.

SUBSTANCE: invention refers to treatment of metals under pressure, particularly for connecting parts of angular "П"- or L-shape with flat sheet. A package of connected sheets is forced through, while shifted and stepped cuts alternate; thus there is formed a recess and a bottom with a lug and holders on it. On the opposite side there is formed a cut with flowing off metal. An impact with a rib of a composed anvil is directed onto a projection and into the cut, so that metal comes out the boundaries of connected sheets. Also a floating package of puncheons of the facility is designed to travel beyond boundaries of cuts in jaws for free installation of flanges from bars in it. The matrix can be re-installed. There are two slots for installation of angular part, a slot for installation of the composed anvil and an insertion for transfer of dulled sections of the slot to sections with sharp cutting edges and also for replacement of one cross section of the slot to another.

EFFECT: raised reliability, strength and expanded process functionality.

11 cl, 22 dwg

Description

The invention relates to the processing of metals by pressure, in particular to methods and devices for joining several sheets, when one of the sheets is covered by two others or they are superimposed on each other, having an angular or L-shaped shape, and can be used in mechanical engineering, construction industry, in the energy sector, in the manufacture and installation of ventilation, aspiration of sheet steel, roof coatings, commercial equipment, as well as in the construction of a cover layer of insulating coatings.

A known method and device for its implementation (see Av. St. No. 1286099, CL B21D 39/03, 1989). In the known method, the readjustment and adjustment for joining the sheets is solved by repeated measurements, which creates inconvenience in the work.

The sections of the working parts of the anvil and punch are made continuous, therefore, for the implementation of the method, great efforts must be made, which requires the construction of hydroelectric power stations, the use of electric drives and excludes the creation of mobile tools with a manual drive.

A known method of connecting sheet metal parts by a device of the company TRUMPF, exhibited at the exhibition of metalworking in 2002 in Moscow (see the catalog of TRUMPF). The known method and device for its implementation are successfully used everywhere, but require great effort, which excludes their use with a manual drive.

The known method implemented by the device (see RF Patent No. 1733238, class B29D 39/03, 1988), in which two sheets are pressed through not by a composite, but by a continuous punch. However, in a known manner, the metal is not incised or forced in steps, so the known method can only be used with a machine-driven device.

Known stamp for connecting sheet parts (see RF Patent No. 1433572, CL B21D 39/03, 1988). Using a stamp, the notching of the sheets and their pulling are performed by a continuous platform of the punch. However, when fastening the flanges, great efforts must be made, which excludes the possibility of using it with a manual drive.

A known method implemented by the device (see RF Patent No. 1829979, class B21D 39/03, 1993), in which the cutting and punching of the sheet package is carried out by a solid rectangular platform, which requires great effort and excludes the creation of tools with a manual drive .

A known method and device for connecting superimposed metal sheets (see RF Patent No. 2106219, class B21D 39/00, 1998). The compounds obtained by the known method slightly extend beyond the sheet surface, however, they have insufficient torsion resistance. In addition, to make connections, great effort is required, which eliminates the creation of hand tools.

A known method of connecting metal sheets, implemented by the device (see RF Patent No. 2025176, class B21D 39/03, 1992), which is successfully used when connecting a package of sheets up to 2.0 mm, allows the manufacture of a number of mobile hand tools. The method solves the problem of readjusting the device to work, eliminates the operation of preliminary measurements of the thickness of the sheet package through the use of a floating package of punches, which compensates for all inaccuracies in the manufacture of sheets inserted into the mouth of the device to connect them. However, in a known manner it is impossible to connect sheets having an angular or L-shaped shape, covering or superimposed on flat surfaces due to the inability to enter them into the mouth of the device.

A known method for connecting sheet metal parts and a device for its implementation (see RF Patent No. 2281827, class B21D 39/03, 2004). This method is the closest to the claimed method. The known method is successfully used for fastening a flange of tires with flat sections, flat faces of rectangular ducts. The resulting compounds have sufficient strength and density when the parts of the joined sheets are parallel to each other. The parts are in the initial state prior to the connection, flat sections and do not have a total gap between each other more than 1.0 mm. In this case, the four mounting corners, which are an element of the tire flange, should not have a thickness of more than 2.0 mm, and the thickness of the sheet package should be in the range from 2.0 to 3.0 mm.

In addition, for example, if there are gaps of up to 1.0 mm between a duct sheet 0.55 mm thick, two sheets of a flange element from 20x20x8 tires 0.55 mm thick, when the total thickness of three or four sheets is 1.65 mm, and the thickness the mounting angles is 3.0 mm, in the resulting compounds the phenomenon of plastic reversibility occurs due to lack of thickness. As a result, the strength and density of the joints made are reduced.

In a known manner, it is not possible to connect the punches directly or indirectly so that semicircular bulges of a size of 2.0 to 3.0 mm are brought out onto the outside of the flange from the tires. The protruding inward convexity of the joints around the perimeter of the duct prevents the rotation of mechanisms, for example, ventilation fire damper flaps, which reduces the technological capabilities of the known method due to the impossibility of its application.

In a known manner, it is impossible to conduct bilateral opposed connections, since a floating packet of punches must be introduced alternately, from the outside, then from the inside to connect the tire flange to the duct along the joint. This order of alternating joints is necessary to eliminate technologically unavoidable gaps up to 4.0 mm in size by compressing a sheet packet from two sides to increase the joint strength. Also, the known device does not allow the opposite to be placed in the cheeks and matrix of the connected parts of the angular shape.

In the known method, the elements of the floating pack of punches are made in one plane. Therefore, in a known manner, it is impossible to fasten one of the four elements of the tire flange, that is, corners with holes with the other four elements of the tire flange inside. That is, for mounting parts of the flange from tires during its manufacture, it is necessary to use other equipment or tools.

The disadvantages of this method include the impossibility of making connections from one installation of the device to a flange of tires with a size of 20 × 20 × 8 mm and removing it from the flange without turning through an angle from 0 to 90 degrees due to the lack of overall dimensions of the mouth of the device.

The disadvantages of this method include ricochet and deflection of the anvil when it strikes the bulge of the connection. In addition, the anvil is made non-composite, which eliminates the possibility of increasing its cross section more than the cross-sectional dimensions of the working part of the floating punch pack. The absence of an anvil component with limiters in the device eliminates the possibility of using the method and a special device with the optimal choice of its cross section. For example, when connecting sheet packets by a method in the general case of its use with a thickness of 1.0 to 2.5 mm by a device with a manual drive, the cross-sectional size of the anvil components with limiters must exceed the cross-sectional size of the floating punches pack.

The disadvantages of this method include the insufficient volume of extruded metal by the pointed part of the disk segment when striking a bulge.

The disadvantage of this method is the impossibility of making joints of high plastic steels with the setting of a floating pack of punches to achieve optimal strength and density of joints working both in shear and in tension with only one direct stroke of the pack of punches. In addition, according to the convexity of the obtained compound, it is necessary to inflict a light blow with the help of a lever leverage to withdraw it from the matrix.

For example, when fastening packages of three or four sheets, when the first sheet is inclined to the floating package of punches, cases of formation of loose joints on one long side of the cavity of the obtained connection of a rectangular shape are not excluded, which should also be attributed to disadvantages.

The known method does not provide for an increased penetration depth of the truncated pad of the middle part of the floating packet of punches into the connected packet of sheets. The method does not provide for fastening with offset from the plane relative to each other the cutting edges and cones of the plates of the extreme parts to prevent overcutting of the inclined flat tire springs, in order to form deeper depressions, protrusions, clamps to obtain more durable and tight joints and reduce the applied loads.

The disadvantages of this method include the inability to switch from one face to another when attaching a flange with a rectangular duct around the entire perimeter, without removing the device.

The choice of the use of the claimed method depends on the variety of tire flanges, the shapes of the tires supplied to them, the amount of clearance formed when the mounting brackets are installed in the tires, the thickness and strength of the steel. In this case, for example, the fourth sheet of the package may be the flat part of the suspension or the air damper inserted into the flange of the tires (see Fig. 7, 10, 14.). It should be noted that the tire flange is eight parts connected in series. The four parts are fixing corners with holes that are inserted into the grooves of the other four parts of the tires of an angular U- or G-shape with a U-shaped stiffener and a dead end spring plate, and are interconnected by cold point connections (see Fig. 2, 9 )

The presence of flat springs allows the introduction of flat sheets of air duct into the flanges of the tires on a sliding fit without the formation of excessive gaps (see Figure 4) with the exception of four sections along the perimeter where the mounting corners are located (see Figure 9).

Consider the implementation of the claimed method, which is necessary in all cases of its use when connecting the tire flange and the air duct with a package of three or four sheets with a total thickness of 1.0 to 2.5 mm, thickness of the mounting corners 3.0 mm and the total clearance of the package sheets up to 3.0 mm around the perimeter.

Fastening of sheet parts superimposed on each other or covering a package of three or four sheets of angular U- or G-shaped with a U-shaped stiffener and a dead-end spring plate, for example, a flange of 20 × 20 × 8 mm tires, covering tightly or with the gap flat sheet of the duct, located parallel or not parallel to the spring plate of the tire, produce a special device. The device for connecting parts is made in the form of a slider with a console, a body in the form of two cheeks, placed in it with the possibility of fixed or movable fastening on a slider of a floating package of punches. The package of punches is made in the form of cones of two plates made at an angle of 90 degrees and above with extreme parts with cutting edges, a middle part with cones at an angle of less than 90 degrees, with a forming section in the form of a disk segment. Details of the package of punches made with the possibility of independent movement relative to each other. The disk segment of the forming section of the middle part of the floating punch package is made with a platform truncated at the base, in which the two sides of the plane are partially parallel and are equipped with chamfers around the perimeter. The extreme plates of the floating package of punches are made with four cones in the form of two rectangles with four cutting edges and have steps with sizes from 0.1 to 0.25 or from 0.1 to 0.7 of the thickness of the plates of the extreme parts.

A matrix is installed in the housing with a movable element in the form of an anvil connected to the slider, made integral in the form of guides, stops with cutting edges and ribs fixedly or movably fixed in the matrix groove and movably or motionless relative to the slider, as well as the clamp controller with a groove, a centralizer, fixed motionless on a slider. The levers are located in grooves made at an angle of 45 degrees to the horizontal axis of the housing. Cuts are made in the cheeks of the body to limit the course of the protrusions, the L-shaped corner grooves form a pharynx, with the help of which the device is mounted on the tire flange without rotation relative to the stack of sheets to be joined, the first of which is a stiffener and the third a dead-end spring plate. In this case, the U-shaped stiffening rib of the corner part is inserted into the groove of the throat and the groove of the pressure regulator is inserted on it. The platform truncated at the base of the disk segment is placed at a distance of 0.1 to 1.0 of the thickness of the third flat sheet from four protruding cutting edges of the plates of the extreme parts of the punch package. The top of the rib of the composite anvil is placed at a distance of not more than the thickness of the third sheet behind its outer edge at the same level or below the level of the cutting edges of the limiters, which are located above the conical surfaces of the rib of the anvil. The console of the slide is shifted to the extreme position above the plug and the earring for the cutouts along the grooves of the cheeks of the body. The depth of incision line of the outer edge of the third sheet is combined with four protruding cutting edges of the punches package, the size of which is smaller than the dimensions along the width of the cone sections by the size of the steps on the plates of the punches package with sizes ranging from 0.1 to 0.25 or from 0.1 up to 0.7 of the plate thickness of the extreme parts of the punch, and a flat sheet is connected to the corner piece by a direct stroke of the floating punch package fixed on a slider and with an anvil composite. In this case, a packet of sheets is cut on one side by four cutting edges and pulled by four cones in the form of two rectangles, in which four sides along the length of the first sheet are cut to meet the second sheet, and the other four are pulled out by the cones of the plates of the extreme parts of the floating punch package. As a result, two depressions are formed and the space between them, on the other hand, form a convex, cut along the length and moved along the width along with the cutting edges of the limiters, symmetrically cut along the length of the anvil into two parts in the form of two trapeziums, with the current metal. Then, the first sheet is re-notched until it meets the second and third sheet with two cutting edges of the steps, simultaneously with the second and third sheet with four cutting edges of the plates of the extreme parts to the border of the outer edge of the third sheet, four rectangles are formed. At the same time, the space between them is pressed through by a distance of the thickness of the first, second and third sheet by a distance that is in the range from 0.1 to 1.0 of its thickness from the protruding cutting edges of the plates of the extreme parts of the truncated area of the disk segment, form a protrusion. Simultaneously in width, the first sheet, together with the second and third sheet, is pulled by four cones of plates to the outer edge of the third sheet, a packet of sheets is pulled by the thickness of the first, second and third sheets to a distance ranging from 0.1 to 1.0 of the thickness of the third sheet from cutting edges of the plates of the extreme parts of the truncated disk area of the middle part of the floating package of punches. As a result, two latches are formed with non-pressed portions in the form of rectangles protruding into the hollow, which limits the connection being formed from displacement together with the side surfaces, which are obtained due to the difference in the angles of the cones and the height of the plates of the extreme parts relative to the middle part of the floating punches package. At the same time, on the other hand, by a squeezed metal, a bulge is cut, notched and pressed along the length of the rib, and an incision is formed to establish the rib when striking. At the same time, the current metal is simultaneously cut by the cutting edges of the stops and pressed into the space below the edge to its conical surfaces, the spring-loaded stops are moved by the current metal in different directions from the edge to the stop in the matrix and the metal is moved outside the third sheet in two parts in the form of two trapeziums ( see Fig. 8). Squeezed metal removed outside the joined packet of sheets is sufficient to ensure the strength and density of the joint, freely removed from the groove of the matrix, without causing a light anvil on the convexity of the joint.

We propose the use of the claimed method in the particular case when a dead end spring plate of a U-shaped stiffening rib of a U- or L-shaped part from which, for example, a tire flange is made is located at an angle of 1 to 10 degrees (see Figure 3 , 5, 6, 7), the total thickness of the package of three or four sheets is from 1.5 to 3.0 mm, the total gap between the sheets is up to 4.0 mm, the thickness of the mounting angle is 3.0 mm, the method is used in the following sequence .

For example, when a packet of four sheets is connected, one plate of the extreme parts with a step with a protruding cutting edge, located under the pressure regulator, is displaced relative to the other towards the matrix by a distance ranging from 0.1 to 0.9 of the thickness of the inclined first sheet. The truncated area of the disk segment is displaced to form a groove between the cutting edges of the plates of the extreme parts by a distance of not more than the thickness of the first and second sheet. A floating pack of punches fixed on a slider with plates of extreme parts offset relative to each other and a fixed composite anvil in the die slot, a packet of four sheets is connected in a manner necessary in all cases of its use. At the same time, with one protruding cutting edge of the plate of the extreme parts of the punch package fixed under the pressure regulator, the first oblique sheet is cut with the protruding cutting edge of the plate of the extreme parts fixed on the slide to a depth ranging from 0.1 to 0.9 of the thickness of the obliquely located sheet and cutting edge steps. The area under the offset truncated platform of the disk segment of the first sheet is bent to the interface with the second sheet, and the widths are pulled by the cones of the plate of the extreme parts, fixed under the pressure regulator, form a depression to a depth equal to the thickness of the first sheet. At the same time, the cones of the plate of the extreme parts fixed on the slider, the first sheet is pulled, form a depression to a depth that is in the range from 0.1 to 0.9 of the thickness of the inclined first sheet (see Fig. 10, 11, 12, 13). Then, in a manner necessary in all cases of its use, a packet of sheets is connected to each other.

In the particular case when it is necessary to connect packages of three sheets with a total thickness of up to 4.0 mm, with a total perimeter gap of up to 4.0 mm, the thickness of the corner fasteners up to 3.0 mm, and the bulges of the joints made must be brought to the outside tire flange, the method is used as follows.

The plates of the extreme parts are rotated through an angle of 180 degrees relative to the middle part. The truncated area of the disk segment is shifted by the thickness of the first inclined sheet to the outside for the protruding cutting edge, mounted under the pressure regulator, made on the plate of the extreme parts of the punch package in the direction of the matrix. The size of the steps is chosen from 0.1 to 1.0 mm. The top of the rib of the composite anvil is displaced below the cutting edges of the limiters and together it is fixed motionless in the matrix from displacement in two planes by an amount not less than the thickness of the third sheet. In this case, the first obliquely located sheet is pressed through, cut into a truncated area of the disk segment and pulled out by cones to the border of the second sheet without participating in the incision and the extrusion of protruding protruding cutting edges of the plates of the extreme parts (see Fig. 14). Then, two hollows in the form of a rectangle from the steps, two hollows from the protruding cutting edges along the cross section in the shape of a triangle, a protrusion and two clamps are formed on the bottom with a pressed metal. On the other hand, the flowing metal is cut, pressed into space to the rib and conical surfaces, form a place for striking and two bulges extending beyond the third sheet of the flange from the tires into the duct (see Fig. 17, 20). For the lever arms, the device is removed from the resulting connection. Then the conical surface of the matrix, located at an angle of 45 degrees, lead into the corner of the flange from the tire (see Figure 2), the device is rotated relative to the top of the mounting bracket and move it to another side of the duct with a flange from the tire for similar connections. Then the device is reinstalled at an angle from 0 to 180 degrees on the flange of the tire and fasten parts in between the previously made connections. The package is secured with hollows from the side of the third sheet from the inside of the tire and air duct flange, and bulges from the side of the first sheet from the outside of the tire and air duct flange, which are fixed with alternating opposed cold point connections directed to the sides with the tire flange from the plane of the sheet of the duct, closing it around the perimeter. After that, the protruding truncated platform is placed opposite the hole of the mounting bracket inserted into the inside of the U-shaped stiffener of the corner part of the tire flange, and the metal of the U-shaped stiffening plate is pressed into the hole of the mounting bracket, fixing the parts between them (see Fig. 9) .

The implementation of the method in the particular case of its use, when it is necessary to mount parts with increased strength, is carried out in the following order.

The liner is fixed on a slider, the composite anvil is limited from longitudinal movement, it is fixedly fixed on the slider and released for free movement relative to the matrix groove. The stops are introduced into the cutouts of the cheeks of the housing to ensure that the protrusions of the punch package are fixed in them. The anvil rib is brought out on the outside behind the cutting edges of the limiters, which are fixed to the rib from the divorce. The device is mounted on a tire flange with a rotation from 0 to 30 degrees and the levers return with a rib to a previously incised place in the convexity of the connection made, the bottom and convex are distributed in different directions by a truncated platform of the disk segment simultaneously with the composite anvil rib (see Fig. eighteen).

The implementation of the method in the particular case when it is necessary to connect parts in the form of a flange from tires of standard sizes 20 × 20 × 8 mm or 30 × 30 × 10 mm, is carried out in the following order.

The matrix is reinstalled at an angle from 0 to 180 degrees, the groove is located opposite the floating package of punches. The insert is placed alternately between one of the two cheeks and the inner plane of the matrix to alternately move the portion of the groove of the matrix with blunt cutting edges to the portion of the groove of the matrix with previously sharp cutting edges that are not previously involved in the fastening of the stack of sheets and make the connection with the direct stroke of the floating punches pack.

The implementation of the method in the General case of its use ensures the achievement of the following technical results. Moving the console of the slider with the fixed package of punches over the earring to the extreme position for the cuts along the longitudinal groove of the cheeks provides a pharynx, for example, 22 mm in size, which makes it possible to install and remove the device on the flange from the tire with a cross section of 20 × 20 × 8 mm without rotation at an angle from 0 to 90 degrees. The choice of different depths of insertion and fixation of the truncated area of the disk segment provides the following technical results. Its displacement together with the middle part inward relative to the plates of the extreme parts of the punch package, forming a groove in the range from 0.1 to 1.0 of the thickness of the third sheet, as well as their joint fixation motionless on the slider when fastening the package of sheets from 1.0 to 2.5 mm, allows you to choose the magnitude of the applied loads on the levers and determine the optimal dimensions of the device. In addition, depending on the location in the space of the ventilation systems, when making connections, it is possible to choose the optimal dimensions of the protrusion and two latches formed inside the cavity. Accordingly, if necessary, you can configure the device to make joints working both in tension and in making joints working in shear. For example, when connecting sheet packets with a total thickness of 1.0 mm, the insertion depth size for the truncated area of the disk segment is set to 0.1 thickness of the third flat sheet. In this case, when making the connection, maximum efforts are applied (see Fig. 22), since with a relatively small total thickness of the sheet stack up to 1.0 mm, it is necessary to cut, pull the metal with an almost continuous rectangular shape. In this case, maximum efforts are applied, the volume and density of the pressed and withdrawn metal increases beyond the limits of the third flat sheet. In general, the strength and density of the joint of a sheet sheet package with a total thickness of up to 1.0 mm, which work both at break and at shear, are ensured. But preference with such a device setup and the choice of strength characteristics when fastening sheet packages is given to joints that work primarily in tension. And vice versa (see Fig. 20, 21), the choice of the depth of cut for the truncated area of the forming section of the disk segment with a size of 1.0, that is, equal to the thickness of the third flat sheet, reduces the volume of extruded metal outside the joined packet of sheets by increasing the size of the protrusion , clamps and reduces the applied load. Accordingly, they increase the area of engagement inside the cavity and the strength of the joints working on the shear. In general, it is possible to make joints with a total sheet package thickness of up to 2.5 mm, with technologically unavoidable gaps of up to 3.0 mm in size, mounting angles up to 3.0 mm thick with their guarantee in operating conditions during operation both for shear and tensile operation. However, with this device setup and the need to select strength characteristics for fastening sheet packages, preference is given to joints experiencing shear stresses. The implementation of the method in terms of the location of the top of the rib in the form of a triangle at a distance of not more than the thickness of the third sheet behind its outer edge at the same level and below the level of the cutting edges of the limiters, which are located above the conical surfaces of the anvil rib, is caused by a notch with a simultaneous restriction from displacement from the axis of symmetry forming compound. The formation of a place for creating an edge and eliminating a rebound when striking a notch in the current metal is ensured, its output is symmetrical in the form of two trapeziums, and movement facilitates the separation of the limiters to the stop in the matrix. The implementation of the method in part, when the packet of sheets on one side is cut with four cutting edges along with the steps, is pressed to the border of the third sheet and simultaneously pulled by four cones to the outer edge of the third sheet, due to the receipt of four rectangles in the cavity, and at the same time, punching and stretching of the space between the formed rectangles due to the difference in the angles of the cones and the height of the cutting edges with the steps of the plates of the extreme parts relative to the truncated platform and the noses of the middle part of the package of punches due to the receipt in the cavity of the protrusion and two clamps while reducing the applied loads.

The implementation of the method in the particular case of its use, when the dead end spring plate of the U-shaped stiffener is located at an angle of up to 10 degrees (see Figure 6) with respect to other flat sheets of the stack of joined sheets ensures the achievement of the following technical results.

The displacement of the plate of the outer parts with the step and the protruding cutting edge located under the pressure regulator towards the matrix by a distance ranging from 0.1 to 0.9 of the thickness of the inclined first sheet, as well as the displacement of the truncated area of the disk segment with the formation of a groove inside between the cutting edges of the plates of the extreme parts to a distance not exceeding the thickness of the first and second sheet, and the subsequent motionless fastening of the floating package of punches on the slider when making the connection eliminates the leak awns. This is achieved by cutting to a depth of 0.1 to 0.9 deflection of the portion of the inclined sheet under the truncated platform to mate with the second sheet and stretching it without cutting to form leaks in the cavity.

The implementation of the method in the particular case when it is necessary to fasten a flange from tires with an air duct with depressions from the side of the third sheet from the inner side of the flange from the tires and the air duct, and the bulges from the side of the first sheet from the outer side of the flange from the tire allows you to remove obstacles when turning the gates and dampers placed in the cross section of the duct.

The extension of the truncated area of the disk segment of the middle part to the thickness of the first inclined sheet, to the outside behind the protruding cutting edge of the plate of the extreme parts of the punches package, which is fixed under the pressure adjuster towards the die, provides fastening of the sheet package up to 4 mm. The offset of the tip of the rib of the composite anvil below the cutting edges of the limiters with joint fixation motionless in the matrix from displacement in two planes by an amount not less than the third sheet, provides forcing the metal to form a bulge. As a result, the cones are cut and pulled by the truncated platform of the disk segment of the first sheet to the border of the second sheet without participation in the protruding cutting edges of the plates of the extreme parts offset relative to each other. This significantly reduces the applied loads and provides fastening of the package of sheets up to 4.0 mm. It provides fastening of the inclined first sheet without forming a cut and the formation of leaks. It is possible to push the tire elements into the holes of the mounting corners before they are fastened with the air duct, as well as immediately after fitting the tire flanges onto the air duct. Entering at an angle of 45 degrees the conical surfaces of the matrix into the corner of the flange from the tires ensures the transition from one face of the duct to another without removing the device from the flange from the tires. The rotation of the outer parts by an angle of 180 degrees relative to the middle part and the choice of steps from 0.1 to 1.0 mm allow you to optimally choose the distance between the cutting edges of the plates of the outer parts to reduce the applied loads depending on the strength of the metal of the joined sheets, and the device is moved by an angle 0 to 180 degrees on the tire flange allows fastening of parts in the gaps between previously made joints, closing the air duct in the tire flange, increasing the overall joint strength along the perimeter due to alternating I am opposing the cold point connections. At the same time, the total number of clamps around the perimeter of the ducts assembled into the nodes is significantly reduced. It should be noted that if it is necessary to fasten a package of sheets up to 5.0 mm thick to reduce the applied loads on the levers, limiters with cutting edges can also be offset relative to each other and fixedly mounted on the anvil rib. In the accompanying graphic materials, this option is not shown.

When connecting parts with increased strength, the composite anvil is limited from longitudinal movement, fixedly mounted on a slider and freed for free movement relative to the groove of the matrix. Then the stops are introduced into the cutouts of the cheeks to ensure that the protrusions of the punches are fixed in them, and the anvil rib is led out beyond the cutting edges of the limiters, which are fixed to the rib from the divorce, provide the ability to strike with a rib at a pre-cut place in the convexity of the made connection without deflection and rebound. In this case, the cross-sectional size of the rib, together with the limiters rigidly fixed on it, exceeds the cross-sectional size of the floating punch package, thereby additionally eliminating rib deflection upon impact. The result is the fastening of parts with increased strength.

The implementation of the method, when the matrix is reinstalled at an angle from 0 to 180 degrees, the groove is located opposite the floating pack of punches, and the insert is placed alternately between one of the two cheeks and the inner surface of the matrix to alternately move the plot of the groove of the matrix with blunt cutting edges to the groove of the matrix with not the previously participating sharp cutting edges, provides fastening of flanges from tires of standard sizes 20 × 20 × 8 mm and 30 × 30 × 10 mm, which also increases the life time of the cutting edges of the matrix.

Figure 1 shows the proposed device for implementing the inventive method.

Figure 2 is a top view with the moment the device is transferred from one face of the duct to another without removing it from the tire flange.

Figure 3 is a cross section of a tire flange with an inclined dead end spring plate.

Figure 4 is a cross-section of a tire flange with a mounting bracket installed and a flat sheet inserted parallel to the dead-end spring plate.

Figure 5 is a cross section of a tire flange with an inclined concave dead end spring plate, a flat sheet and a mounting bracket.

Figure 6 is a cross section of a tire flange with an inclined dead end spring plate at an angle of 1 to 15 degrees, a mounting bracket and a flat sheet.

Figure 7 is a cross section of a tire flange with a dead end spring plate, a mounting bracket located therein, a flat duct sheet and a flat gate or damper sheet.

On Fig - connected package of three sheets in the manner necessary in all cases of its use.

In Fig.9 - prepared for mounting a tire flange, with a mounting corner inserted into it and a U-shaped tire stiffener pressed into its hole. Type of technologically inevitable total clearance of up to 4.0 mm.

Figure 10 is the moment of notching, deflection, pressing the inclined first sheet to the second and the beginning of the formation of a place for striking in the bulge.

Figure 11 is the moment of notching, pulling the second sheet and the approach of the truncated area of the disk segment to the first sheet.

On Fig - the moment of notching, pulling and forcing the first, second, third sheet, the beginning of the formation of two retainers, protrusion, two recesses in the cross section in the form of triangles, forcing the place for striking and the beginning of the divorce of the limiters.

In Fig.13 - the moment of completion of fastening the package of sheets with the formation of a hollow with five pads in the form of rectangles on one side and a bulge with two trapezoid and a place for striking.

On Fig - the moment of notching and punching the first obliquely located sheet truncated area of the disk segment.

On Fig - the moment of stepwise notching of the first sheet to the second, notching and punching of the first and second sheet truncated area of the disk segment and partial notching of the inclined sheet.

On Fig - the moment of notching and pulling the first, second, third sheet and the formation of a place for striking in the bulge between the limiters in the form of rectangles and two trapeziums.

On Fig - view of the finally connected package of four sheets with a hollow and a bottom in the form of unequal and displaced in height three rectangles.

In Fig.18 - the time of striking the bulge with the rib of the anvil with rigidly fixed limiters on it, the cross section of which exceeds the cross section of a floating packet of punches.

In Fig.19 - the moment of installation in the throat of an inverted matrix of flanges from tires of two sizes 20 × 20 × 8 mm, 30 × 30 × 10 mm inverted at an angle from 0 to 180 degrees and their fastening to the duct.

In Fig.20 is a view of the cavity and the bulge after attaching the package of four sheets offset from each other by the plates of the extreme parts and a truncated platform segment of the disk with the formation of two clamps and protrusion.

In Fig.21 is a view of the settings of the displaced and fixed on the slide plate of the extreme parts and the truncated area of the disk segment to perform the connection of packet sheets under load on the shear.

On Fig is a view of the settings of the displaced and fixed on the slide plate of the extreme parts and the truncated area of the disk segment to make connections of a packet of sheets experiencing tensile loads.

A device for implementing the method comprises a housing 1 in the form of two cheeks with guides 2, in which a slider 3 with a pusher 4, a console 5 is placed. Elongated grooves 6 are made in the cheeks of the housing 1, in which a floating package of punches 7 is installed (see Figure 1) . The package of punches 7 consists of punching and notching plates 8, 9 of the extreme parts and a cutting middle part 10 located between them with a working forming section in the form of a disk segment 11, with a truncated platform 12 made at the base (see Fig. 10, 14), which interacts with the rib 13 of the composite anvil 14 (see Fig.11). The floating pack of punches 7 can be fixed motionless on the slider 3 with the possibility of displacement, adjustment and fixing of its parts relative to each other, with the possibility of alternating sequential or simultaneous cutting into the connected packet of sheets, as well as with the possibility of independent movement of all its components relative to each other, the grooves of the cheeks of the housing 1, the slider 3, the pusher 4, the console 5 relative to the longitudinal axis (see Figure 1, 2). The rib 13, which is an element of the composite anvil 14, can be fixed and released with it using the liner 15 on the slider 3. In addition, the rib 13, the limiters 16 with cutting edges guiding 17, forming a composite anvil, which can be fixedly or movably fixed in the groove 18 of the matrix 19 and movably or not motionless relative to the slider 3. The matrix 19 is provided with a groove 20 (see Figure 2) for installation in it the end of the U-shaped stiffener 21, plane 22, made on a dead end spring plate 23, tires 24, shear flange s 25 (see Figure 2, 3) and a strap 26 (see Figure 19) to adjust the height of its position on the cheeks of the housing 1, designed to align the axis of symmetry of the ribs 13 with the axis of symmetry of the truncated platform 12 (see Figure 1 , 2, 8, 10, 14). Limiters 16 with cutting edges can be connected by hinges 27 to the guides 17 or be their continuation, can be fixed motionless on the composite anvil 14 or can be released to breed them in different directions from it. Due to the conical surfaces, the stops 16 can be moved due to the gap, which is in the range from 0.4 to 1.0 mm, up to the stop in the surface of the groove 18 of the matrix 19 (see Fig. 8, 13). In addition, the limiters 16 can be spring-loaded, for example, with elastic 28 to return them after the divorce to its original position (see Fig. 10,12) and be pressed against the anvil, covering it. The slider 3 is connected by an axis 29 to a fork 30, pivotally connected by an axis 31 to an earring 32. The axis 33, on which the earring 32 is located, is connected to the disks 34 with an offset of 2 to 3 mm, which together form an eccentric. The disks 34 are made of two circular grooves 35 for fixing them on the cheeks of the housing 1 when setting the depth of cut. In the cheeks of the housing 1, cutouts 36 (see Figure 1) are made with the possibility of fixing them and removing the stops 37 from them (see Figure 1, 2). For the entire length of the cheeks, grooves 6 are made, which extend above the cutouts 36, with the possibility of moving the console 5 to the extreme position (see Fig. 1.2). The ability to move configured to perform the connection of the floating package of punches 7 above the plug 30, the earring 32 for the cutouts 36, provided that the stops 37 are removed from the cheeks, ensures the constructive implementation of the device without increasing the idle speed of the slide 3, the size of the lever arms 39 and 40, the size of the throat 38 from 12 mm to 22 mm. Accordingly, it becomes possible to install the pharynx 38 together with the device on a tire flange with a packet of sheets 41, 42, 43, 44, for example, 20 × 20 × 8 mm in size without performing a rotation from 0 to 90 degrees (see Fig. 1, 2, 19).

In the matrix 19, four cones 45 are made at an angle of 45 degrees for the possibility of transferring the device after performing opposed connections 46 and 47 on one face 48 to another face. The device is not removed from the flange from the tires 25, but is moved with rotation relative to the U-shaped stiffener 49 through the top of the mounting bracket 50 with holes 51 for bolts and holes for mounting 52, and a technologically unavoidable gap 53 (see Fig. 2, 9) . The truncated platform 12 of the forming element of the disk segment of the middle part 11 of the punches pack, in which the two sides of the plane are partially parallel and equipped with chamfers around the perimeter, allows the flange metal from tires 20 × 20 × 8 mm with a rib 49 and tires 30 to be pressed through holes 52 of the mounting bracket 50 × 30 × 10 mm with a rib 56. In the matrix 19, a groove 54 is made for inserting a package of punches and a groove 55 for creating a U-shaped stiffener 49, 56 of a flange from tires 25 of two sizes 20 × 20 × 8 mm and 30 × 30 × 10 mm (see Fig. 19). When the matrix 19 is rotated 180 degrees and fixed on the housing 1, it is possible to fasten the flanges of two tire sizes 20 × 20 × 8 mm, 30 × 30 × 10 mm with an air duct.

In the matrix 19, a groove 57 is made for making connections 46 and 47 (see Figure 2) with an alternating opposite arrangement of their depressions and bulges, with their output to the outer and inner flange surfaces from tires 20x20x8 mm with a bag thickness of up to 4.0 mm. A centralizer 59 and a groove, similar in design to the groove 20 made on the matrix 19, are made on the clamp adjuster 58 for installing stiffeners 21 in it. Details of the tail of the floating package of punches 7 are provided with locking protrusions 60 and grooves 61 in contact with cutouts 36, and when necessary and with stops 37 (see Fig. 1, 2). A device for implementing the method required in the general case of its use is performed in such a way that the composite anvil 14, including limiters 16 with cutting edges, the guides 17, the rib 13 can be fixedly or movably fixed in the groove 18 of the matrix 19 and is fixedly or movably fixed on slider 3 relative to the horizontal axis.

To implement the method in the general case of its use when fastening three or four sheets of angular U- or L-shaped with a U-shaped stiffener and a dead-end spring plate, covering a flat sheet tightly or with a gap, parallel or non-parallel to the spring plate, a special the device is used in the following order.

For fastening packages with a total thickness of 1.0 to 2.5 mm, for example from three sheets of ductile steel, choose cutting edges 62, 63 and steps 64, 65 ranging in size from 0.1 to 0.25 of the thickness of the plates of the outer parts 8, 9 (see Fig. 8).

To ensure the divorce until it stops in the groove 18 of the matrix 19, the conical surfaces 66, 67 of the limiters 16 covered, for example, by an annular spring or elastic 28, they are released from the clamp, turning the locking screw 68 from the rib 13 of the composite anvil 14. In the initial state, the limiters 16 are pressed to the composite anvil with an annular spring or elastic 28. Due to the relatively small deviation of the dead end spring plate 41 (see Figure 4) from the planes of the remaining sheets of the joined package, four cutting edges 62 and 63 are installed in one plane awns. Using the eccentric discs 34, the insertion depth is set so that the protruding four cutting edges 62, 63 do not extend beyond the outer edge of the third sheet 43 during the final reduction of the levers 39. The insertion depth line of the outer edge of the third sheet is combined with four protruding cutting edges 62, 63 of the pack of punches 7. The truncated pad 12 of the segment of the disk 11 is displaced by a distance of 0.1 to 0.9 of the thickness of the third sheet 43. After finishing the above settings, the floating pack of punches 7 is fixedly fixed to the floor Zune 3 by the pressure regulator 58. The top of the rib 13 of the composite anvil 14 is placed at a distance of not more than the thickness of the third sheet 43 behind its outer edge at the same level or below the level of the cutting edges of the limiters 16, and the conical surfaces 66 and 67 of the rib 13 are lower than the cutting edges of the limiters 16 (see Fig. 8). The composite anvil 14 with the guides 15, the limiters 16 are fixedly fixed in the groove 18 of the matrix 19. With increased strength of the package of four connected sheets, the plates of the outer parts 8 and 9 can be reinstalled by turning from 0 to 180 degrees around its axis with a choice of steps 64, 65 in size from 0.1 to 0.7 of their thickness and are fixed on a slider. As a result, the bevels of the cones of the cutting edges 62 and 63 will be facing the middle part 9 of the package of punches 7, which contributes to their separation when incised into the metal and its intensive removal outside the third sheet 43.

For the convenience of describing the operation of the device in some special cases of its use using graphic materials, taking into account minor changes in technical characteristics, the designation of the four cutting edges 62 and 63 (see Fig. 8) at positions 69 and 70 (see Fig. 14, 16).

Having removed the stops 37 from the cutouts 36, the console 5 with a fixedly fixed floating pack of punches 7 can move along the groove 6 to the extreme position outside the cutouts 36. The throat 38 is released to a size of 22.0 mm and the device is mounted without turning onto a tire flange 25 of size 20 × 20x × 6 m, with a total thickness of a packet of sheets 41, 42, 43 up to 2.5 mm. A U-shaped stiffener 56 is located opposite the groove 38 in the cheeks of the housing 1 (see FIG. 2), and the end of the stiffener 21 is opposite the groove 20. The handles with levers 39, 40 are brought towards each other and a flat sheet is connected to the corner piece In the direct course of the floating pack of punches 7, fixed motionless on a slider and a composite anvil 14, motionlessly fixed in the groove 18 of the matrix 19. Moreover, the stack of sheets is cut from one side with four cutting edges 62, 63 and pulled by four cones 71, 72 in the form of two rectangles. In the rectangles, four sides along the length of the first sheet 41 are cut to meet the second sheet 42. At the same time, four other sides in width are pulled by the four cones 71, 72 of the plates of the outer parts 8, 9 of the said floating punch package 7. Form two cavities 73, 74 and the space between them, and on the other hand form a bulge 75 with the current metal, cut along the length of the rib 13 with the formation of a place for striking 76 and moved along the width along with the cutting edges of the spring-loaded stops 16. The bulge 75 is symmetrical on cut along the length of the edge of the anvil 13 into two parts in the form of two trapeziums. Then, the first sheet 41 is re-notched until it meets the second sheet 42 and the third sheet 43 with two cutting edges of the steps 64 and 65 (see Fig. 8), simultaneously with the second and third sheets 42, 43 with four cutting edges 62, 63 to the edge of the outer edge third sheet 43. Four rectangles are obtained, two of which 73 and 74 in the depth of the depression are formed by four cutting edges 62, 63, and two rectangles 77, 78 are formed by steps 64 and 65 (see Figs. 8, 20). At the same time, the space between them is pressed through by the thickness of the first 41, second 42 and third sheet 43, which is in the range from 0.1 to 1.0 of its thickness from the protruding cutting edges 62, 63 of the plates of the outer parts 8, 9 of the truncated area 12 of the disk segment. A protrusion 79 is formed, the first sheet 41 along the width of the second 42 and the third 43 is pulled by four cones 71, 72 of the plates of the outer parts 8, 9 to the outer edge of the third sheet 43. At the same time, the packet of sheets is pulled to the thickness of the first 41, second 42 and third sheet 43 at a distance that is in the range from 0.1 to 1.0 of the thickness of the third sheet 43 from the cutting edges 62, 63 by the cones 80, 81, and squeezed, with a truncated platform 12 of the disk segment of the middle part 10 of the floating package of punches 7 form two clips 83, 84 (see Fig.21, 22). Two retainers 83, 84 protrude into the cavity. Their sections of at least the first sheet 41 in the form of rectangles are formed not only due to the difference in angles of the four cones 71, 72 and two cones 80, 81, but also due to the difference in height between the cutting edges 62, 63 of the plates of the extreme parts and offset from them of the truncated platform 12. At the same time, on the other hand, the extruded metal gives a bulge 75, notched and pressed along the length of the rib 13, form an incision to establish the rib 13 with the elimination of rebound when striking. At the same time, the convexity metal 75 is cut by the cutting edges of the stops 16 and inserted into the space below the rib 13 to its conical surfaces 66 and 67. With the current metal, the spring-loaded stops 16 are moved apart from the rib 13 to the stop in the groove 18 of the matrix 19 and the metal is moved outside the third sheet two parts in the form of two trapezoid.

In the particular case of fastening, for example, a four-sheet package, in which the dead-end spring plate of the U-shaped stiffener facing the floating package of punches is inclined (see Figs. 3, 5, 7), the device is used as follows. One plate of the outer parts 8 is fixed on the clamp controller 58 and the slider 3 at a distance in the range from 0.1 to 0.9 of the thickness of the inclined first sheet 41 towards the matrix 19 relative to the other plate of the outer parts 9 mounted on the slider. The size of the steps is selected from 0.1 to 0.7 of the thickness of the plates of the extreme parts 8 and 9. The truncated pad 12 is displaced relative to the plates of the extreme parts from the cutting edges 62 and 63 to the depth of the total thickness of the first 41 and second sheet 42 (see Figure 10) .

The protruding cutting edges 62 and 63, offset from each other by a distance of 0.1 to 0.9 of the thickness of the inclined sheet, are fixedly fixed together with the truncated pad 12 of the disk segment on the clamp adjuster 58 and the slider 3. Then, the sheet package is fastened in direct motion floating pack of punches 7 in a manner that is necessary in all cases of its use (see Fig. 10, 11, 12, 13). At the same time, with one protruding cutting edge 62 of the plate of the extreme parts 8 of the punch package fixed under the clamp adjuster 58, the first inclined sheet 41 is cut into a rectangle to meet the second 42. At the same time, an incision is made on the first sheet with a protruding cutting edge 63 of the plate of the extreme parts 9, fixed on the slider 3 to a depth ranging from 0.1 to 0.9 of the thickness of the inclined sheet 41 and the cutting edge of the step 64. The section under the offset truncated platform 12 of the segment the disk 11 of the first sheet 41 is bent until it mates with the second sheet 42, and the widths of the plates of the extreme parts 9, fixed under the pressure regulator 58, are pulled out by the cones and form a depression to a depth equal to the thickness of the first sheet 41.

At the same time, the cones of the plate of the extreme parts 9 mounted on the slider 3, the first sheet 41 is pulled, form a depression to a depth that is in the range from 0.1 to 0.9 of the thickness of the inclined first sheet 41.

When connecting a package with a thickness of 4.0 mm, for example, four sheets, one of which is a dead end spring plate of a U-shaped stiffener and is inclined at an angle of up to 10 degrees with respect to the others, the device is used as follows. The plates of the extreme parts 8 and 9 are released from mounting on the slider 3, rotated around their axis by an angle from 0 to 180 degrees and the bevels of the cutting edges 69 and 70 are turned to the middle part 10 of the floating package of punches 7 and again fixed on the slider 3. In this case, the truncated the pad 12 of the disk segment 11 is positioned offset to the outer side from the protruding cutting edge 69 of the plate of the extreme parts 8, mounted under the pressure regulator 58 on the slider 3 at a distance of not less than the thickness of the first sheet 41 in the direction of the matrix. The rib 13 for striking the composite anvil 14 is displaced below the cutting edges of the limiters 16 by an amount not less than the thickness of the third sheet 43 with the formation of space for the current metal. The limiters 16 with cutting edges are fixedly fixed with a screw 68 on the rib 13 and in the groove 18 of the matrix 19 without the possibility of spreading in different directions from the rib 13. At the same time, the elastic or ring spring 28 can be removed from the limiters 16. The cutting edge 69 on the plate of the extreme parts 9 under the pressure regulator is offset relative to the other cutting edge 70 by a distance that is in the range from 0.1 to 0.9 of the thickness of the inclined first sheet 41.

Then the device by the throat 38 is mounted on a flange of tires 25 and fastened with a sheet 42 of the duct by reducing the levers 39 and 40 towards each other. In this case, the first, inclined sheet 41 is cut by a protruding truncated platform 12 and pulled by two cones 80, 81 to the border of the second sheet 42 without the participation of four cutting edges 69, 70 and four cones 71, 72 (see Fig. 14). Then, with a truncated pad 12 of the disk segment 11, the connected packet is cut along the length of the depression, and the sheets of the package are pulled out by the cones 80 and 81 having angles less than 90 degrees along the outer edge of the third sheet 43 and form a bulge 91 (see Fig. 15, 16 ) At the same time, along the length of the depression, four cutting edges 69, 70 displaced relative to each other, four cones 71, 72 offset relative to each other and exceeding an angle of 90 degrees, the connected packet is cut, pulled, pressed to the outer edge of the third sheet 43. As a result, the cavity forms 92 s the bottom 93 (see Fig. 17) from forcing the truncated platform 12, two protrusions 94 and 95, two depressions 97 from the cutting edges 69, 70 and two platforms 98, 99 pressed by the steps 64 and 65. On the other hand, the flowing metal is cut with cutting edges limiters 16 and pushed into the space between them to the conical surfaces 66 and 67 of the rib 13. The pressed metal is cut with a rib 13 to form a place for striking 76 and the formation of two trapezoid 90 (see Fig. 17). For the lever arms 39 and 40, the device is removed from the connection obtained and moved to another place. When attaching a package, for example, of four sheets with high strength, the device is used as follows.

In the cutouts 36 of the jaws of the housing 1, the stops 37 are installed and fixed, and on the slider 3, a liner 15 is installed, by means of which the movement of the anvil 14 of the horizontal axis is limited. The rib 13 for striking a notched spot 76 of the bulge 100 is brought out beyond the cutting edges of the stops 16, which are fixed and without a divorce by a screw 68 on the rib 13. An elastic or ring spring 28 can be removed from the stops 16. The composite anvil 14 together with attached to it guides 17 and limiters 16 with cutting edges fixedly mounted on the slider 3 and movably fixed in the groove 18 of the matrix 19. As a result, the total cross section of the tuned anvil 14 will exceed the cross section of the floating about the package of punches 7. Plates of the extreme parts 8, 9 with protrusions, with cutting edges 69 and 70, the middle part 10 with a truncated pad 12 and the protrusions of the floating package of punches 7 are released from the pressure regulator 58 for free movement relative to each other, the centralizer 59, the slider 3 and grooves 6 of the cheeks of the housing 1. At the site for striking 76 of the bulge 100, they strike backward with the levers 39 and 40. In this case, the rib 13 is started without deflection and rebound, and together with the truncated platform 12 of the middle part 10, the floating package of punches 7 , bottom 93 and convex 100 be further dissected and hand in different directions (see. Fig. 18), increasing the strength of the connection.

In special cases, when it is necessary to fix the flanges of two tire sizes 20 × 20 × 8 mm and 30 × 30 × 10 mm to the duct, when it is necessary to remove obstacles in the form of bulges 46, which prevent the rotation of the gates or dampers mounted inside the duct by replacing the fasteners 46 to the fasteners 47 with the convexity output to the outside of the tire flange (see FIG. 2), as well as to eliminate the deflection of each face of the air duct together with the tire flange 25 with the unilateral execution of the troughs 92, 97 with the joint spacing, for example, up to 50 mm device using as follows. Matrix 19 is reinstalled with rotation by an angle from 0 to 180 degrees. The axis of symmetry of the section of the groove portion 54 using the strap 15 is aligned with the axis of symmetry of the truncated pad 12 of the disk segment 11, which is extended to the thickness of the first sheet 41 relative to the cutting edges 69, 70 and the floating package of punches 7 is fixed on the slider. The groove 56 is disposed with the possibility of making U-shaped stiffeners 49 and 56 flanges from tires 25 of two sizes 20 × 20 × 8 mm and 30 × 30 × 10 mm. Between the cheek and the matrix 19 at least half the cheeks of the housing 1 move the insert 101 (see Figure 2) and thus fix it so that the blunt edges of the groove 54 of the matrix 19 take the sharp edges of the groove 54, not yet involved in the fastening of the sheets . In this case, the cross section of the groove 54 with sharp edges is set opposite the cross section of the floating package of punches 7.

The device is mounted by a throat 38 on a flange of tires 25 of two sizes 20 × 20 × 8 mm with a U-shaped stiffener 49 or 30 × 30 × 10 mm with a U-shaped stiffener 56. Accordingly, a U-shaped stiffener 49 or 56 is brought under the protrusion of the slider into the groove of the throat 38 and fasten the sheets 41, 42, 43 by the direct stroke of the floating package of punches 7 with the formation of a depression 92 and a bulge 100 (see Figs. 1, 9) of the joints 46. Then, the flange from the bus 25 is fixed to the duct sheet 42 around the perimeter with similar connections 46. Then the device is removed from the flange from the tires 25, the coup angle from 0 to 180 degrees and again set the groove 38 on the flange of tires 25. The U-shaped stiffener of the flanges of the two tire sizes lead into groove 55. Sheet 43 is located opposite the truncated platform 12 of the disk segment 11 and the forward stroke of the floating punch package 7 in the interval between the previously made connections 46, the flange of the tires 25 is fixed with the duct. Compounds 47 are formed to form a depression 92 on the inside of the duct 48 and a bulge 100 on the outside of the flange of the tires 25 and the duct 48 (see FIG. 2). Using the method and a special device ensures the smooth rotation of all kinds of gates, valves, since the hollows 92 of the connections are made on the inside of the duct 48, and the bulge 100 on its outside (see Fig. 17).

It should be noted that it is not always advisable to perform the connections of the sheet package strictly at the same level along the perimeter of the tire flange, due to a decrease in the overall strength and joint deformation along the length, but in some cases this must be done.

In the particular case, when it is necessary to mount the package of sheets of the flange from the bus 25 with the duct 48 with making connections at the same level around the perimeter, the device is used as follows (see Fig. 1, 19).

When installing the device on a flange of tires 25 in the groove 20 of the matrix 19 and on a similar groove 20 on the pressure regulator 58, the ends of 21 U-shaped stiffeners 49 of tires 20 × 20 × 8 mm and stiffeners of 56 tires 30 × 30 × 10 are installed mm, and then mount the package of three or four sheets (see Fig.1, 19).

A device is known (see RF Patent No. 2281827, CL. B21D 39/03), which is the closest in technical essence to the described special device, which successfully connects sheets with a total thickness of 2.0 to 3.0 mm, having flat sections, and technologically inevitable total gap between sheets of not more than 1.0 mm.

The disadvantages of the known device include the impossibility of making connections of packages of sheets with a total thickness of 1.0 to 1.65 mm due to the lack of interlocking forces due to the small thickness of the sheet package.

The impossibility of making connections with the formation of bulges on the outside of the tire flange due to the absence of a groove in the matrix for creating a U-shaped stiffening rib from the tire of two sizes 20 × 20 × 8 mm and 30 × 30 × 10 mm.

The impossibility of making connections between the flange elements of the tires, namely, four mounting corners with its other elements, that is, with four tires of two sizes 20 × 20 × 8 mm and 30 × 30 × 10 mm.

The inability to install on a tire flange and remove a known device from a tire flange connected to the duct without turning through an angle from 0 to 90 degrees. The inability to perform reliable striking on the joints made without rebound during the fastening of sheets with increased strength, due to the lack of a special cut and place for institution and striking with an anvil.

The inability to prevent deflection of the anvil during establishment and striking, the possibility of increasing the size of its cross section due to its location and movement directly next to the cutting edges of the matrix. The inability to fasten one inclined sheet facing the floating bag of punches from 0 to 15 degrees with respect to other sheets of the bag without the formation of leaks in the cavity of the connection, in the area of the spring dead end plate.

The inability to make connections with respect to thick-walled sheets with flanges from tires and an air duct with a total gap of 4.0 mm, a fastening angle of 4.0 mm and a thickness of 4.0 mm due to the location of the cutting edges and the disk segment of the floating punch package in one plane . The inability to ensure the movement of the device around the perimeter relative to the flange from the busbars of the rectangular duct for making connections.

The impossibility of correcting the deflection of the connected flange from tires with the air duct by alternating opposed connections on the inner and outer sides of the duct. It should be noted that with the unilateral execution of the depressions along the joint with a step of up to 50 mm, a deformation is formed due to drawing in the form of concavity of each of the four planes of the duct.

The impossibility of removing a floating package of punches with the connection made inside the groove of the device matrix without causing a light blow by the anvil briskly on the convexity of the formed connection.

The reduced overall strength of the joints does not make it possible to reduce the total number of tightening clamps around the perimeter of the joint formed by two adjacent mating flanges from tires with a known device.

The above disadvantages are eliminated by a special device when implementing the claimed method in all cases of its use.

A device for connecting sheet parts superimposed on one another or covering a packet of three or four sheets of angular U- or G-shape with a U-shaped stiffener and a dead-end spring plate, covering a flat sheet tightly or with a gap, parallel or non-parallel the spring plate, contains a housing in the form of two cheeks, a floating package of punches placed in the housing in the form of two plates with extreme parts with two cutting edges, steps, a middle part having a forming section in the form of a segment nta disk installed with the possibility of independent movement relative to each other, slide, clamp adjuster, fixed motionless on the centralizer slider, levers located in the grooves made at an angle of 45 degrees to its horizontal axis. Cuts are made in the cheeks of the body to limit the course of the protrusions, the angular grooves of the L-shaped form a pharynx. The matrix has a movable element in the form of an anvil connected to a slider. The cheeks are made with grooves along their entire length extending above the cutouts, with the possibility of moving along them beyond the cutouts of a floating pack of punches fixed to the console of the slider. The forming section of the floating pack of punches is made in the form of a platform truncated at the base of the disk segment, the two sides of the plane of which are partially parallel and equipped with chamfers around the perimeter, offset from the protruding four cutting edges of the plates of the outer parts to a depth ranging from 0.1 to 1.0 the thickness of the third sheet of the joined packet of sheets. The matrix is made with a bar for its alignment with respect to the horizontal axis, with a groove in which the composite anvil is placed.

The composite anvil has a rib with conical parts intended for making an incision in the convexity of the obtained compound and subsequent striking into the resulting incision with the elimination of the rebound and deflection of the rib when striking. Limiters with cutting edges have the ability to divorce from edge to stop in the groove of the matrix. The cutting edges are located above the conical parts of the ribs. A composite anvil, including guides, limiters with cutting edges, a rib, is made with the possibility of fixed or movable fastening in the groove of the matrix and movable or fixed fastening relative to the slider and relative to the horizontal axis of the housing.

The presence in the device of the above characteristics ensures the implementation of the claimed method of joining sheet parts, which are necessary in all cases of its use and the achievement of the following technical results:

namely, the presence of stops, with the possibility of withdrawal and installation on cutouts in the cheeks of the body, grooves extending above the cuts for the entire length of the cheeks and placement of an eccentric, earrings and forks under the console, allow the floating package of punches to move to the extreme position of the cheeks of the body. This arrangement allows, without increasing the center-to-center distances between the axes of the eccentric, earrings, forks, to increase idle when the levers are extended all the way apart, to remove the working parts of the floating punch package to a distance that allows the device to be shed up to 22 mm in size (see Figure 1 and 2).

Zev provides unhindered installation of the device on connected parts of three or four sheets of angular U- or G-shaped with a U-shaped stiffener and a dead-end spring plate of flanges from tires 20 × 20 × 8 mm without increasing its overall dimensions.

Each protruding part of the plates of the extreme parts is equipped with steps and two cutting edges. Correspondingly, the metal of the joint cavity is cut and pressed through by four cutting edges and pulled by four cones, in which the sections of the working sections are smaller than the size of the sections of the plates of the extreme parts, with the least effort on the levers of the device.

The execution of the forming section of the middle part of the floating package of punches in the form of a platform truncated at the base of the disk segment, the two sides of the plane of which are partially parallel and equipped with chamfers around the perimeter, as well as the possibility of fixing it on a slider with a shift relative to the protruding cutting edges of the plates of the extreme parts to a depth located in the range from 0.1 to 1.0 thickness of the third sheet of the connected packet of sheets, allows you to optimally select the depth of cut. There is an opportunity to choose the applied load on the levers, to determine the size of the protrusion and two latches of the connection cavity. Correspondingly, determine the types of joints under stress either in tension or in shear, depending on the vertical or horizontal position in the space of ventilation systems. It is possible to manufacture ventilation systems with fastening air ducts with tire flanges and assembling them into enlarged units before being installed in the design position.

The presence of a strip in the matrix is due to the need for alignment and alignment of the grooves of the matrix relative to the floating packet of punches along the horizontal axis of the device.

The presence of a rib and its conical surfaces located below provide a notch with a symmetrical shift in different directions of the outflowing metal outside the joined sheets. An incision is created, that is, a place for creating a rib without rebounding and striking with a rib in the particular case of using the device, and the conical surfaces located below the rib and below the cutting edges of the stops create a space for metal to enter into it from punching, followed by the separation of the stops to the stop the groove of the matrix and the formation of two bulges, incised in the form of two trapezoids.

The presence in the groove of the matrix of the anvil, made integral, including a rib with conical parts, limiters with cutting edges, connected to the guides with the possibility of their separation from the rib to the stop in the groove of the matrix and fixed mounting in the groove of the matrix relative to the horizontal axis of the housing, due to the use of the device in the general case of its use.

The presence of limiters with cones installed with the possibility of movable movement relative to the groove of the matrix, guides and a spring-loaded divorce relative to the rib to the stop in the groove of the matrix, provide notching, formation and movement of the current metal outside the connected packet of sheets with minimal effort.

The presence of the following essential features ensures the implementation of the claimed method in the particular case of its use and the achievement of the following technical results.

In the particular case when, when connecting a package of four sheets, one of them faces the floating packet of punches and is located obliquely, the device is re-arranged in the following order. One plate of the extreme parts is fixed to the clamp controller and the slider with a choice of distance that is in the range from 0.1 to 0.9 of the thickness of the inclined sheet with an offset towards the matrix and with an offset relative to the plate of the extreme parts fixed to the slider.

The size of the steps is selected in the range from 0.1 to 0.7 of the thickness of the plates of the extreme parts, the truncated area is shifted relative to the plates of the extreme parts from the cutting edges to a depth of not more than the total thickness of the first and second sheet. The protruding cutting edges, offset from each other by a distance of 0.1 to 0.9 of the thickness of the inclined sheet, are fixedly fixed together with the truncated platform of the disk segment on the clamp adjuster and slider.

The ability to configure and fix with an offset of 0.1 to 0.9 of the thickness of the inclined sheet of one protruding cutting edge of the plate of the extreme parts, mounted on the pressure regulator, towards the matrix, relative to the other cutting edge of the plate of the extreme parts, mounted on the slider, and also the possibility of displacement of steps, the size of which is from 0.1 to 0.7, the thickness of the plates of the extreme parts, the displacement of the cones of the plates of the extreme parts, provide a biased incision, punching and stretching of the metal when forming and hollows, without leaks in the inclined sheet and in the joint as a whole, and the displacement of the truncated area of the middle segment of the disk segment by the total thickness of the first and second sheets of the joined package towards the eccentric forms a groove for incision, deflection and pressing of the area under the truncated platform inclined sheet.

In the particular case when it is necessary to connect a package of three or four sheets with a thickness of 3 to 4 mm, in which the size of the total gap is 4 mm, the device is used as follows.

The truncated area of the disk segment is placed with mixing on the outer side of the protruding cutting edge of the plate of the extreme parts, mounted on a slider, at a distance of not less than the thickness of the first sheet. The rib for striking the composite anvil is displaced below the cutting edges of the limiters by an amount not less than the thickness of the third sheet with the formation of space for the current metal. The limiters are fixedly fixed on the edge and in the groove of the matrix without the possibility of divorce in different directions from the edge. An elastic or ring spring can be removed from the device.

With such a readjustment of the device, with a straight stroke cutting into the joined packet of sheets of a floating punches pack fixed on a slider and simultaneously cutting the cutting edges of the composite anvil limiters fixed motionless in the matrix groove, a stepwise formation of the joint depression occurs.

The simultaneous stepwise notching, punching and pulling when connecting the package of sheets form on one side of it not equal in depth three depressions and equal convexity on the other side. At the same time, the first sheet of the joined package is cut, truncated and pulled out without the participation of cutting edges and plate steps of the extreme parts of the punches package with a truncated platform of the disk segment. A more solid, dense connection is obtained with a thickness of up to 4 mm without cutting the inclined first sheet with eliminating the gap of up to 4 mm and with minimal application of forces to the levers of the device. In addition, the truncated area of the disk segment protruding onto the outside pushes the metal of the angular P- and G-shaped tires into the holes of the mounting corners, forming eight point joints at least along the perimeter of the tire flange.

In the particular case, when attaching packages of sheets with high strength, the device is used as follows.

In the cutouts of the cheeks of the housing, stops are installed to limit the course of the protrusions of the floating package of punches, which are released from fixing on the pressure regulator and the slider. On the other hand, the slider motionlessly fix the liner. The rib is extended to apply the convexity of the impact compound beyond the cutting edges of the limiters. Then the limiters without a divorce are fixed on the rib. All elements of the composite anvil are fixedly mounted on the slider and movably relative to the groove of the matrix, while the total thickness of the cross section of the composite anvil will exceed the cross section of the floating packet of punches. The technical result is the ability to attach packages of sheets of stainless and low alloy steel.

In the particular case, when placing gates, valves, dampers inside the duct to ensure that they can rotate and fit snugly to overlap the section of the duct, as well as for mounting flanges from tires of two sizes 20 × 20 × 8 mm and 30 × 30 × 10 mm used as follows.

The matrix is reinstalled at an angle from 0 to 180 degrees and fixed on the cheeks of the body with a shift of the liner between it and the cheek, ensuring the replacement of one section of the groove of the matrix to another, including the extension from the use of the blunt groove of the matrix to sharp sections that are not yet involved in the fastening of the sheets. The groove of the matrix with sharp edges is combined with a floating package of punches.

After the matrix is readjusted, the device is threaded into the flange from the tires, a U-shaped stiffening rib with a dead-end plate is inserted into the groove and fixed with a direct stroke of the punches package on the inside of the duct with the formation of hollows on its inside and the bulges on the outside.

In this case, the resulting depressions will not impede the rotation of the mounted gates and valves. To eliminate deformations, sagging, the joints obtained when fastening the flanges from tires with the air duct as a result of depressions and only on the outside, make similar connections between them with depressions on the inside of the duct, align the joint around the perimeter. This is due to the fact that the sheet of the duct is closed on both sides with the same stretching of the metal during the formation of depressions and bulges, with the simultaneous alignment of the planes of the duct along with the tire flange. As a result of increasing the overall strength during installation of two adjacent flanges from tires connected to the ventilation duct, the total number of various tightening clamps is reduced.

To make connections along the perimeter of the flange from the tire at the same level for orientation and movement of the device along the joint, the end of the dead-end spring plate of the U-shaped stiffeners is installed in grooves made on the matrix and pressure regulator.

The device can be structurally made in an identical and equivalent embodiment in accordance with the claims for the general and special case of its use.

Claims (12)

1. The method of connecting sheet metal parts in a package of three or four sheets, superimposed or covering each other, in the form of an angular U or L-shaped with a U-shaped stiffener and a dead-end spring plate, covering a flat sheet tightly or with a gap, located in parallel or inclined to a spring plate, including mounting on a package of joined sheets of a device made in the form of a slider with a console, a body in the form of two cheeks with a pharynx for inputting connected parts, a cutout and two grooves, placed in one groove with the possibility of the fixed or movable fastening on the slider of a floating pack of punches in the form of two plates made at an angle of 90 degrees or more with extreme parts with cutting edges, a middle part with a forming section in the form of a disk segment, mounted with the possibility of independent movement relative to each other, and the disk segment the forming section of the middle part of the floating package of punches is made with a platform truncated at the base, in which two sides of the plane are partially parallel and are equipped with chamfers around the perimeter, e The extreme plates are made with four cones and two (in the form of two) rectangles with four cutting edges and have steps, with sizes from 0.1 to 0.25 or from 0.1 to 0.7, the thickness of the plates of the extreme parts, the matrix with a movable an element in the form of an anvil connected to the slider, made integral in the form of guides, limiters with cutting edges and ribs fixedly or movably fixed in the matrix groove and movably or motionless relative to the slide, the clamp adjuster with a groove, the centralizer fixed motionless to the slider e levers located in the groove, formed at an angle of 45 ° to the horizontal axis thereof, and a compound sheet package floating punch and anvil apparatus component. 2. The method according to claim 1, characterized in that when connecting a package of three sheets, the first of which is a stiffener and the third is a dead end spring plate, a U-shaped stiffener of the corner part is inserted into the groove of the throat, and a groove is inserted on it the pressure regulator, the platform truncated at the base of the disk segment is placed at a distance of 0.1 to 1.0 of the thickness of the third flat sheet from the four protruding cutting edges of the plates of the extreme parts of the punch package, the top of the composite anvil rib is placed at a distance of not more than the thickness of the of the sheet beyond its outer edge at one level or lower than the level of the cutting edges of the limiters, which are located above the conical surfaces of the anvil ribs, the slider console is displaced to the extreme position above the fork and the earring by cuts along the grooves of the cheeks of the body, the depth line of the cutting of the outer edge of the third sheet is combined with four protruding cutting edges of the package of punches, the size of which is less than the dimensions of the width of the sections of the cones by the amount made on the plates of the package of punches of steps with sizes that are within from 0.1 to 0.25 or from 0.1 to 0.7 of the thickness of the plates of the extreme parts of the punch and carry out the connection of a flat sheet with an angular part by a direct stroke of a floating packet of punches fixed motionless on a slider and a composite anvil, while the packet of sheets with one the sides are cut with four cutting edges and pulled with four cones in the form of two rectangles, in which four sides along the length of the first sheet are cut to meet the second sheet, and the other four in width are pulled by the cones of the plates of the extreme parts of the floating pack of punches, form two hollows and the space between them, on the other hand form a bulge, cut along the length and moved along the width along with the cutting edges of the stops, symmetrically cut along the length of the anvil into two parts in the form of two trapezes, then the first sheet repeatedly they are cut to meet the second and third sheet with two cutting edges of the steps, simultaneously with the second and third sheet with four cutting edges of the plates of the extreme parts to the border of the outer edge of the third sheet, four rectangles are drawn, at the same time the space between them is pressed through by the distance of the thickness of the first, second and third sheet by a distance that is in the range from 0.1 to 1.0 of its thickness from the protruding cutting edges of the plates of the extreme parts, a protrusion form by a truncated area of the disk segment, and the width of the first sheet together with the second and third sheet is pulled by four cones of plates of the extreme parts to the outer edge of the third sheet, at the same time a packet of sheets is pulled out to the thickness of the first, second and third sheet at a distance , which is in the range from 0.1 to 1.0 of the thickness of the third sheet from the cutting edges of the plates of the extreme parts of the truncated disk area of the middle part of the floating package of punches, form two clamps with not pressed sections in the form of rectangles protruding into the cavity, limiting the connection being formed from displacement together with the side surfaces, which are obtained due to the difference in the angles of the cones and the height of the plates of the extreme parts relative to the middle part of the floating package of punches, simultaneously on the other hand you With a welded metal, a bulge is cut, cut and pressed along the length of the rib, a cut is made to create a rib when striking, at the same time, the current metal is cut with the cutting edges of the stops and pressed into the space below the edge to its conical surfaces, with the current metal, the stops are bent in different directions from the edge to the stop into the matrix and move the metal outside the third sheet in two parts in the form of two trapeziums. 3. The method according to claim 1, characterized in that when connecting a package of four sheets, one of which is inclined, the package of sheets has an inclined sheet facing the package of punches, one plate of the outer parts with a step with a protruding cutting edge of the floating package of punches, located under the pressure regulator, offset relative to the other towards the matrix by a distance that is in the range from 0.1 to 0.9 of the thickness of the inclined first sheet, the truncated area of the disk segment is displaced to form a groove between the cutting by casting the plates of the extreme parts to a distance of no more than the total thickness of the first and second sheet, and together with the composite anvil fixed in the matrix groove, the floating punch package is fixedly fixed with the end parts plates offset relative to each other on the slider, one protruding cutting edge of the plate of the extreme parts of the punch package, fixed under the pressure regulator, the first inclined sheet is incised until it meets the second in the form of a rectangle, while the first sheet is incised protruding with the cutting edge of the plate of the extreme parts fixed on the slider, to a depth ranging from 0.1 to 0.9 of the thickness of the inclined sheet and the cutting edge of the step, the section under the offset truncated platform of the disk segment of the first sheet is bent to the interface with the second sheet, and along the width, the cones of the plate of the extreme parts, fixed under the pressure adjuster, are pulled out to form a depression to a depth equal to the thickness of the first sheet, while the cones of the plate of the extreme parts, fixed on the slider, form the first sheet t, form a cavity with a depth comprised between 0.1 to 0.9 the thickness of the first sheet disposed obliquely, similarly notched and each sheet is extruded. 4. The method according to claim 1, characterized in that when connecting a package of four sheets in the form of an inclined first sheet, a second sheet of the face of the duct, a third of a tire flange, a fourth of a flat sheet with a mounting corner, the plates of the outer parts of the floating punches pack are turned at an angle of 180 ° relative to the middle part, the truncated area of the disk segment is shifted by the thickness of the first inclined sheet to the outside for the protruding cutting edge fixed under the pressure regulator, plate of the extreme parts of the package and punches in the direction of the matrix, the size of the steps is chosen from 0.1 to 1.0 mm, the tip of the rib of the composite anvil is shifted below the cutting edges of the limiters and together they are fixed motionless in the matrix from moving in two planes by an amount not less than the thickness of the third sheet, the first obliquely located the sheet is pressed, cut with a truncated area of the disk segment and pulled out with cones to the border of the second sheet without participating in the notching and forcing the protruding protruding cutting edges of the plates of the extreme parts, then the bottom consists of two hollows in the form of a rectangle from the steps, two hollows from the protruding cutting edges along the cross section in the shape of a triangle, a protrusion and two clamps, on the other hand, the current metal is cut, pressed into space to the rib and conical surfaces, form a place for striking and two bulges extending beyond the third sheet of the flange into the duct, while the packet of punches is removed from the cavity, then the conical surfaces of the matrix, located at an angle of 45 °, are led into the corner of the flange, The property is rotated relative to the top of the mounting bracket and moved to another side of the duct with a flange for making similar connections, then the device is reinstalled at an angle from 0 to 180 ° on the flange and the parts are fastened in the gaps between the previously made joints, with depressions from the side of the third sheet with the inner side of the flange of the spring plate, and the bulges from the side of the first sheet on the outer side of the flange and the duct, which is fixed to the flange with alternating opposed cold point bonds pointing in opposite directions from the plane of the sheet, closing it around the perimeter of a projecting truncated thereafter pad is placed against the mounting bracket opening entered in the U-shaped rib corner member, is forced into the hole with the holding bracket fastening them together. 5. The method according to claim 1, characterized in that an insert is used that is fixed on a slider, the composite anvil is limited from longitudinal movement, fixed on a slider and released for free movement relative to the matrix groove, the stops are introduced into the cutouts of the housing cheeks to ensure fixation in of them of the protrusions of the package of punches, the anvil rib is brought out on the outside for the cutting edges of the limiters, which are fixed to the rib from the divorce, by the reverse stroke of the levers they strike with the rib in a pre-cut place in made convexity compounds bottom and bulge distribute to different sides of a truncated ground segment disk simultaneously with an edge of the anvil component. 6. The method according to claim 1, characterized in that when connecting parts in the form of tires of standard sizes 20 × 20 × 8 mm or 30 × 30 × 10 mm, the matrix is reinstalled at an angle from 0 to 180 °, the groove is located opposite the floating pack of punches, and the insert is positioned alternately between one of the two cheeks and the inner plane of the matrix to alternately move the portion of the groove of the matrix with blunt cutting edges to the portion of the groove of the matrix not previously participating in the fastening of the sheet package with sharp cutting edges. 7. A device for connecting sheet metal parts in a package of three or four sheets, superimposed or covering each other, in the form of an angular U or L-shaped with a U-shaped stiffener and a dead-end spring plate, covering a flat sheet tightly or with a gap, located parallel or inclined to the spring plate, containing a slider with a console, a body in the form of two cheeks with a pharynx for inputting the connected parts, a cutout and two grooves, placed in one groove with the possibility of fixed or movable fastening on the slider its package of punches in the form of two plates with extreme parts with two cutting edges, steps, the middle part, with a forming section, installed with the possibility of independent movement relative to each other, slide, clamp adjuster fixed motionless on the centralizer slide, levers located in the grooves, made at an angle of 45 ° to its horizontal axis, and the forming section of the floating pack of punches is made in the form of a platform truncated at the base of the disk segment, two sides of the plane of which are partially steam lacquered and equipped with chamfers around the perimeter, offset from the protruding four cutting edges of the plates of the extreme parts to a depth ranging from 0.1 to 1.0 of the thickness of the third sheet of the joined stack of sheets, the matrix has a movable element in the form of an anvil connected to the slider, a bar for its alignment with respect to the horizontal axis, a groove for accommodating a composite anvil, including a rib with conical parts, designed to make an incision in the convexity of the obtained connection and then strike into the incision with HAND rebound and deflection ribs at striking, terminators having the possibility of divorce from the edge against the stop in the groove of the matrix, with cutting edges located above the tapered edge portions, and also having the possibility of fastening the stationary together with the rib in the groove of the matrix relative to the horizontal axis of the housing. 8. The device according to claim 7, characterized in that when connecting a package of four sheets, one of which, facing the floating package of punches, is inclined, one plate of the extreme parts is biased and fixed to the pressure regulator and the slider at a distance within from 0.1 to 0.9 of the thickness of the inclined sheet in the direction of the matrix relative to the other plate of the extreme parts fixed to the slider, the size of the steps is in the range from 0.1 to 0.7 of the thickness of the plates of the extreme parts, the truncated area is shifted relative to the astin of the extreme parts from the cutting edges to a depth of not more than the total thickness of the first and second sheet, protruding cutting edges offset from each other by a distance of 0.1 to 0.9 of the thickness of the inclined sheet, are fixedly fixed together with the truncated area of the disk segment on the regulator clip and slider. 9. The device according to any one of paragraphs.7 and 8, characterized in that the truncated area of the disk segment is displaced to the outer side of the protruding cutting edge of the plate of the extreme parts, mounted on a slider at a distance not less than the thickness of the first sheet, a rib for striking a composite anvil shifted below the cutting edges of the stops by an amount not less than the thickness of the third sheet with the formation of space for the current metal, while the stops are fixed on the edge and in the groove of the matrix without the possibility of divorce into different f side of the rib. 10. The device according to claim 7, characterized in that in the cutouts of the cheeks of the casing are mounted stops to limit the course of the protrusions of the floating pack of punches, which is freed from being fixed on the pressure regulator and the slider, the liner is fixedly fixed on the slider, a composite anvil including striking the rib beyond the limits of the limiters, which are fixedly mounted without a divorce on the rib, and all elements of the composite anvil are fixedly mounted on the slider and movably relative to the groove of the matrix, while the total thickness cross-section of the anvil component exceeds the cross section of the floating punch package. 11. The device according to claim 7, characterized in that the matrix is made with the possibility of reinstallation with rotation by an angle from 0 to 180 °, with a groove for attaching sheet packages with flanges on the inside and outside of the duct, and an insert with the ability to move and fix in different directions perpendicular to the longitudinal axis at a distance equal to at least half the thickness of the cheeks of the body, to move one section of the matrix groove to another section, as well as to move the blunted sections of the matrix groove on the axis rye areas not yet involved when mounting the sheets. 12. The device according to claim 7, characterized in that grooves are made on the grooves of the matrix and the pressure adjuster to insert stiffeners of the corner piece into them, to move and orient the device along the joint.

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