RU2557844C1 - Method of jointing sheet parts to air ducts, mainly, flanges of plates, sections of pocket air cleaners and device to this end - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, particularly, to connection of parts. Sheets are connected to 0.1-5.0 mm deep stack with the use of drive for pulse-intermittent transfers to be converted to reciprocation. This is effected by application of 50-90 transfers to execution of one connection in automatic mode. Stack of male punches has two working sections secured for independent displacement and locking in male die holder slot and for rearrangement through 0 to 180 degrees along the device lengthwise axis. Flanges and two metal sheets with non-metal sheet are secured by one working section to air ducts. Metal sheets are coupled by another working section with cloth of pocket air cleaners.

EFFECT: enhanced performances of stacking to get homogeneous joints of equal mechanical strength.

7 cl, 11 dwg

Description

The invention relates to the processing of metals by pressure, in particular, to methods and devices for joining several metal sheets into a bag with a total thickness of 1.0 to 5.0 mm. Namely, when one of the sheets is covered by two others or they are superimposed on each other, they have an angular P- or G-shape, as well as for fastening sheets of non-metallic materials, as well as filtering materials from fabric placed between two metal sheets in the manufacture of pocket coarse and fine filters. It can be used in mechanical engineering, agricultural machinery, construction industry, in the energy sector, in the manufacture and installation of ventilation, suction, roof coatings, commercial equipment, as well as in the construction of a metal layer of insulating coatings for petrochemical tanks, technological equipment, pipelines and tanks.

A known method of connecting sheet metal parts by a device of the company TRUMPF was exhibited at the metalworking exhibition in 2002 in Moscow TF-350 (see. Catalog TRUMPP). The known method and device for its implementation is successfully used everywhere with an electric drive. When using it, the overall dimensions of the hollow of the joined sheets is not more than 4 × 3 mm, therefore, to ensure the required strength when attaching the flange from the tires to the duct, it is necessary to make a large number of connections with a small distance from each other. To obtain more durable joints working in shear, for example, with overall dimensions of the cavity from 6 × 4 mm to 10 × 4 mm in order to reduce the total number of joints when fastening sheets in a package, it is necessary either to increase the overall dimensions of the entire device and the power of the electric motor and the dimensions of the punch, or in the method, the process of punching a packet of sheets with a punch should be carried out using pulse-discontinuous strokes. This mechanism is missing from the device. In addition, according to the passport of the tool, the stroke distance of the punch to the contact with the bag installed for fastening sheets to each other is only 6.5 mm. For this reason, with the overall dimensions of tire flanges from 15 × 15 × 8 mm to 35 × 35 × 10 mm, with each subsequent installation of the aforementioned tool on the air duct flange, it is necessary to rotate the punch holder by an angle from 0 to 90 degrees. Then insert the aforementioned tire flange into the formed opening, turn the punch holder to its original position, and only then install the punch opposite the stack of sheets to be joined. In addition, in a known manner, the connection of three or four sheets into a bag is made not by a composite, step punch, but by an all-metal punch. This requires an increase in the applied forces on the punch of the device. When implementing the method known using an all-metal punch, its readjustment by the aforementioned tool is excluded, in cases where one of the sides of the flange is made of tires 15 × 15 × 8 mm; 35 × 35 × 10 mm is inclined relative to the other. In these cases, in order to avoid undercuts, not connection densities, it is necessary to install another all-metal punch with a pressure pad located at an angle corresponding to the deviation of one side of the tire flange, which is inclined with respect to the punch. The stator of the electric motor is located in the tool body, which reduces its maintainability indicator, in comparison with tools in which the electric motor or pneumatic drive are removed from the tool body. For example, actuators in the form of an electric drill, or a pneumatic drill, which, when their system goes out, can be quickly replaced with others. In addition, in a known manner and device, it is difficult to fasten the flanges from the bus ducts with a cross-section with dimensions up to 400 mm, on the inside of the ducts, due to its overall dimensions. The disadvantages include the inability to use the method and the known device for attaching the filter material wound between two metal sheets in the manufacture of pocket filters. Firstly, the use of the method is excluded due to the impossibility of its installation on the inner sections of the filters, and secondly, the metal sheets have a thickness of 1.0 mm to 5.0 mm and are separated by a non-metallic filter material, for example a fabric, which does not contribute to their kinematic engagement between therefore, such compounds are unreliable.

A known method of connection and a device for its implementation of superimposed metal sheets (see Patent 2106219 Cl. V21D 39/00). The compounds obtained in a known manner have a round shape, slightly protrude beyond the sheet surface, but have insufficient torsion resistance. In addition, with pressure on the metal with two rectangular channels without offset cutting edges, great effort is required to join three or four sheets. To do this, use relatively elongated hoses with hydraulic stations with pneumatic-hydraulic amplifiers. This fact does not allow the device to be used mobile at the installation site. In addition, in a known manner it is impossible to qualitatively mount a metal frame with a non-metallic filter material from the fabric of pocket filters for air purification.

A known method of fastening sheets is implemented by a device (A.s. 977141 B25B 7/00), in which a hole is drilled in one sheet and only then a punch is inserted into it and connected to another sheet by means of the received petals of the perforations pressed against the sheet. However, fasten sections of pocket filters in which metal sheets are connected to non-metal sheets from the fabric of the filter element with a bag thickness of 1.0 mm to 5 mm and flanges from U- or G-shaped tires with an air duct from 1.0 mm to 5 thickness mm in a known manner impossible. It is impossible because of the lack of the necessary application of forces on the punch and the inability to install the device on filters and flanges from tires. In addition, it is impossible to drill a hole in the filtering, non-metallic synthetic fabric material. The connections received by the device with a manual drive are heterogeneous with different strength indicators.

A known method and device for its implementation, see (A.s 1838930 B21B 39/03), which uses an all-metal punch and an all-metal forming element. A rectangular cross-section of four cutting edges of the punch and four bending edges of the forming element in the device are formed by concave chamfers. Due to this, there is protection against reducing the thickness of the covering petals. However, it is impossible to mount sheets in a bag with a total thickness of 1.0 mm to 5.0 mm of tire flanges with air ducts in a known manner due to the lack of the ability to install devices on them and the lack of applied forces. This is caused by the use of an all-metal punch in the device, which cannot be used to step sheets into a bag in steps. In addition, when fastening pocket filters after cutting the sheets with an all-metal punch into the end package, the output metal lobes with the sheet from the filter fabric remain not pressed, which leads to a decrease in the density of the joints. A known method and device for its implementation (see Patent 2089317 of 1995) which connect metal sheets with non-metal sheets of ducts. However, it is impossible to connect sections of sheets with a thickness of 1.0 mm to 5.0 mm located inside the pocket filters in a known manner due to the lack of applied forces on the levers and the impossibility of installing them on the aforementioned sections of the device. In addition, in a known manner with a manual drive, it is impossible to fasten the flanges from tires of a U- or G-shape with an air duct with a total thickness of 1.0 mm to 5.0 mm. The disadvantages of this method include the need for multiple strikes on the grooves of the petals of a packet of sheets with a thickness of 1.0 mm to 5.0 mm. The disadvantages include the fact that a package of one sheet of filter cloth placed between two metal sheets is not cut with a composite, but with a continuous punch with a sharp cutting edge vertically located to the plane of the punch as a result of the end of the formed petals, they are not squeezed.

A known method of connecting sheet structures (Patent 2467820 VB 39/03 published on 11.27.2012), in which to reduce the applied loads on the levers and increase the strength of the connection, when three or four sheets are connected in a package using a step, composite floating package of punches. The known method and device for its implementation is successfully used in various industries under the well-known brand XTS-1, 2, 3, annually exhibited at the exhibition. In a known manner, three or four sheets with a total thickness of 2.0 mm to 4.5 mm are pressed at the beginning with a truncated platform of the protruding middle part, and then with the two extreme parts of the punch packages. As a result, when fastening flanges from tires with dimensions ranging from 15 × 15 × 8 mm to 35 × 35 × 10 mm, connections are obtained to the air ducts for which the overall dimensions of the depressions are in the range from 6 × 4 mm to 10 × 4 mm The above joints correspond to the required nominal strength and the normative application of physical forces when fastening sheets to the levers of the device with sizes ranging from 400 to 600 mm. This makes it possible to use it with a manual drive. Due to the increased strength of the obtained compounds, their total number is reduced along the perimeter of the tire flange connected to the duct. However, with each cycle of joining sheets into a bag in a known manner, a floating bag of device punches does not always pass, when forcing, the distance determined by the depth of cut. The known method does not exclude cases of incomplete incision and punching of sheets into the bag due to the different depth of entry of the floating bag of punches into the matrix. This is due to the different application of forces on the levers of the device in connection with the use of the method and device by different people. Observations showed that when implementing the known method, basically the operators completely reduce the device levers towards each other until the earring closes with the plug. However, there are times when this does not happen. Some operators, for various reasons, for example, due to fatigue at the end of a work shift, do not reduce the device levers to complete closure with each other. In addition, for the same reason, when a device is removed from a flange from tires that are already qualitatively attached to the duct, the removal of the tool takes place in a punch jammed on the flange. Contrary to technical requirements, the levers are not bent apart in all directions to withdraw the punch from the connection, and as a result, there are cases of destruction of the package of punches of the device. Accordingly, the speed of notching, forcing the metal of the joined sheets each time with each cycle of connection are with different application of forces to the levers of the device. Hence the geometric dimensions, the density of the metal during the formation of the bottom of one connection may differ from the geometric dimensions and density of the metal of the bottom of the previously made other joints adjacent to it. Accordingly, the strength indicators of each of the joints along the perimeter of the tire flange sometimes differ significantly from each other. The disadvantages of the known method and device for its implementation include the impossibility of obtaining pulse-discontinuous transmissions to a floating packet of punches necessary to reduce the applied loads. Accordingly, it is not possible to obtain homogeneous compounds with a relatively small difference in shear strength. And also there is no reserve for reducing the magnitude of the applied loads on the package of punches and for reducing the overall dimensions of the drive connected to the aforementioned device. In a known manner it is not possible to qualitatively fasten the fabric of the filter material placed between two metal sheets with a bag thickness of 1.0 mm to 5.0 mm sections of pocket filters for air purification. The location of the sheet of the filter element from the fabric between the metal sheets adversely affects their interlocking when attached to each other in a package. The disadvantages include the lack of the ability to install the pharynx of the device on the inner sections of pocket filters, for this reason it is impossible to make connections in a known manner.

A known method implemented by the device (see Av. St. No. 1155439 V25V 27 00 1985 year). The known method is implemented using a device in which the housing is connected to an externally placed electric or pneumatic actuator with a start button, which improves and shortens the repair time of the device. A worm gear is located in the housing, on the shaft of which there is a profiled cam interacting with the actuator in the form of two-arm levers, on one end of which a matrix is placed, on the other a punch. The brake drum ensures the exclusion of inertial torque from the drive shaft, due to the presence of a block of a worm wheel mounted on a shaft with a disk having a depression on the periphery and a spring-loaded rod located in it with two other levers that are connected by a rod to the drive enable button. In a known manner, two flat sheets are combined into a bag with a total thickness of up to 1.6 mm. Compounds with equal numerical values of the nominal strength indicators are obtained, and homogeneous compounds with equal geometric dimensions are obtained as a result of eliminating the influence of the human factor. Significantly improved working conditions. However, the fastening of sheets in a package with a total thickness of 1.0 mm to 5.0 mm, G or U-shaped in a known manner, including opposed joints made from the inside and outside of the flange from tires with sizes from 15 × 15 × × 8 mm and 35 × 35 × 10 mm are impossible. Due to the lack of the possibility of introducing a flange from tires under the punch to make connections. And also because of the lack of distance of the necessary working stroke for moving the punch, which should be at least in the range from 19 mm to 24 mm. And also due to the lack of applied forces on an all-metal punch driven by a known device. As a result of the implementation of the known method with the drive in the known device with a profiling cam and a worm gear, it cannot be used for fastening flanges from U- or G-shaped tires with an air duct. And to create a mobile portable tool with a drive due to its excessive weight and overall dimensions. The reason is that the use of a worm gear in the drive of a known device eliminates the need for intermittent transmissions when making connections.

As a result, the possibility of reducing the applied loads when notching and forcing sheets with an increased total sheet package thickness of more than 1.6 mm is excluded.

The disadvantages of this method include the impossibility of attaching metal sheets with a filter cloth with a total thickness of 1.0 mm to 5.0 mm in a packet, due to the inaccessibility of installing the device on them and the lack of the required amount of applied force on the punch. In a known manner, it is impossible to mount the mating flanges from tires with nozzles for fans and other equipment fixed in the plane of buildings from light metal structures, for example, when the space between the sheets is filled with insulating material. The disadvantages include the fact that when implementing the known method for joining sheets in the device, an all-metal punch is used. Its platform for pressure on the sheets can not be readjusted to the required angle. Therefore, when mounting flanges from tires in which one of the sides is inclined relative to the other side to the duct sheet, the all-metal punch must be reinstalled on the other punch, which will correspond to the desired angle of inclination. This method is the closest to the claimed method of fastening sheets in a package.

The above disadvantages are eliminated by the claimed method using a device that has a pneumatic or electric drive supplied from the mains or battery mounted on an electric motor that is removed and fixed outside the housing boundary. On the opposite side of the housing is a monolithic power head, which is exposed outside the outer edges of the housing. In the particular case of using the method, the engine can be reinstalled on two planes on both sides of the drive casing and one plane from above connecting the side along the transverse axis of the drive casing. A conical pinion gear is fixed on the motor shaft, and a driven bevel gear is fixed on an oblique washer, which receives torque from the input pinion gear, which is reinstalled in the plane on which the engine is fixed. At the same time, for connecting the thrust with the start button, inserts are installed that eliminate the difference in distance between them in connection with a change in the location of the motor on the drive housing. Two grooves of the power head are intended for introducing flanges from U- or G-shaped tires for their fastening from the outer and inner sides with the duct sheet, as well as for connecting metal sheets with non-metallic, as well as three sheets in a bag of pocket filters for air purification. A pocket filter is a series of sections connected in series with each other, in which the middle sheet is a filter sheet and made of a sheet of fabric, and the other two outermost sheets are metal. The above two metal sheets may be in the form of a strip with a cross-sectional width of 15 mm to 30 mm and a thickness of each strip of up to 2.5 mm. At the same time, for the possibility of installing the device not only on the external, but also the internal sections of the rough and fine air filter pocket filters, the longitudinal axis of the punches pack on the slider in the power head is parallelly shifted relative to the longitudinal axis of the backstage rod, and removed outside the drive housing. Above the groove in the monolithic power head for placing the U- or G-shaped rib flange from the tires behind the jumper, another groove of the insertion depth adjustment unit is made. The fixation and release of the matrix on the power head is a spring-loaded clamp, in the form of a roller connected to the rod. The rod is spring-loaded with two springs, one ends of which are inserted into the matrix, the other ends are brought into the roller. The rod periodically enters and exits into one of several holes of the integral matrix. If necessary, in the groove of the power head, a detachable matrix with a similar hole for introducing the rod is also placed. In addition, on the aforementioned groove with the possibility of independent movement and fixing made molding elements in the form of floating packages of punches, consisting of three parts of a rounded shape. The radius of curvature of the plates of the extreme parts of the punch packages is smaller than the size of the radius of curvature of the plates of the middle part. The plates of the extreme parts, after being fixed on the groove of the power head, protrude beyond the plates of the middle parts of the punch packages. As a result, rounded grooves are formed, which are used to maintain the thickness when expanding the petals of the glazed parts, which are connected in a packet of two metal sheets with a filter sheet of pocket filters. A longitudinal package of punches with two working sections fixed in the puncheon holder is located along the longitudinal axis opposite the integral matrix. One work area is intended for fastening flanges from tires with an air duct, metal sheets with sheets of non-metallic materials, for example, cardboard, and another work area is intended for fastening two metal sheets with a sheet of fabric placed between them of the aforementioned pocket filters. Both work sections, if necessary, can be set and fixed in the punch holder opposite the groove of the integral matrix by turning through an angle from 0 to 180 degrees relative to the longitudinal axis of the power head.

The punch holder is arranged to move along the guides of the power head and is connected by a slider to a rod entering the drive body and connected to the link. A pusher is placed in the groove of the backstage, in the hole of which a crank is mounted fixedly mounted on the ratchet wheel. To ensure a sufficient amount of pulsed-intermittent application of forces to a floating package of punches, the diameter of the ratchet wheel should be in the range from 75 mm to 135 mm. The number of teeth on the ratchet wheel should be in the range from 50 to 90 units, which was established experimentally during the testing of prototypes. At the same time, each tooth of the ratchet wheel located on the periphery around its circumference for one full revolution experiences pulse-intermittent pressure with a frequency of 50 to 90 cycles from the pushing dog located on the cracker. The cracker is mounted movably on the axis of the ratchet wheel together with the roller and the pushing dog in the radial direction swing oscillating reciprocating motion. At the same time, the reciprocating movement of the roller, the cracker, the pushing dog is imparted by an oblique washer mounted on the shaft of a pneumatic or electric motor along the longitudinal axis of the drive housing in the general case of using the method. At the same time, the ratchet wheel rotates unevenly on its axis, and with interruptions due to pulse-discontinuous transfers of the pushing dog to each ratchet tooth, their number is equal to the number of teeth on the ratchet wheel and ranges from 50 units to 90 units. The oblique washer, when rotated one full revolution from 0 to 360 degrees, presses its conical surface onto the roller. The roller moving the cracker forces the pushing dog brought into the tooth to rotate the ratchet wheel one tooth clockwise. At the same time, another brake dog mounted on the drive housing fixes the movement of the ratchet wheel around its axis by one tooth. Depending on the calculated frequency of the pulsed-intermittent transmissions of the transmitted forces to the packet of punches necessary for forcing the sheets into the packet, the ratchet wheel can be made in several versions. For example, for fastening sheets in a bag with a total thickness of 2.0 mm to 2.5 mm, the diameter of the ratchet wheel is chosen equal to 75 mm. The number of pulse-discontinuous gears of the applied forces per pack of punches should be 50 per one full revolution of the ratchet wheel. The number of teeth of the ratchet wheel should be 50 units. And for fastening sheets in a package with a total thickness, for example, ranging from 3.0 mm to 3.5 mm, the diameter of the ratchet wheel is chosen equal to 108 mm. The number of teeth on the ratchet wheel should be 72 units, which will correspond to the number of the frequency of the pulsed-intermittent gears per packet of punches. Tests of the method and device for its implementation showed the following. With a power of a pneumatic or electric motor of 1.0 kilowatts, with a number of revolutions of the drive shaft from 800 to 1500 per minute, the distance of the forward and reverse stroke of the punch package of 24 mm, with one full revolution around its axis of a ratchet wheel with a diameter of 108 mm and the number of teeth 72 units, and the number of pulsed-intermittent transfers affecting the package of punches equal to 72 transfers, the execution of one connection of sheets into a package with a total thickness of up to 3.0 mm occurs within 2.0 to 5.0 seconds. In this case, the minimum application of forces on the notching and forcing of the metal of the joined sheets is used. For fastening sections of pocket filters, consisting of non-metallic materials made of fabric, placed between two plates of metal sheets in a bag, an integral matrix is arranged with the possibility of independent stationary or moving movement along the groove along the longitudinal axis of the power head. This is achieved by placing a spring-loaded rod pierced by a roller between the two screws for adjusting the depth of the die. The rod is inserted into one of several holes made in the lower part of the integral matrix, or removed from them. The aforementioned holes are made at a distance from each other with a step equal to the reinstallation distance when changing the blunt sections of the integral matrix to sharp ones. Thereby, the one-piece matrix is fixed from displacement and freed for displacement in the process of attaching the aforementioned sheets to the bag. This is achieved due to the cones on the protrusions of the fork, connected and moved simultaneously with the punch holder, as well as due to the springs wound on the roller mounted on both sides of the rod. Some ends of the springs are led into depressions made on the short side of the integral matrix, while the other ends of the springs are fixed under the roller.

At the stage of transferring pulse-intermittent cuts, forcing sheets through a pack of punches and removing the formed petals beyond the joined sheets, the integral matrix is stationary. At the next stage, with a direct pulse-discontinuous stroke of the punch package fixed in the groove of the punch holder together with the fork fixed on it, they press on the roller with their cones. And along the through groove of the power head vertically located to the longitudinal axis, overcoming the efforts of the springs, the roller is moved together with the rod and it is brought out of the hole of the integral matrix. This ensures that the punch holder moves the integral matrix along the longitudinal axis of the housing together with the brought out petals of the joined sheets towards the forming elements fixed on a groove in the power head housing, with grooves of which the steel petals are expanded together with the petals of the filter fabric. At the stage of release from the finished connection with the reverse non-uniform pulse-intermittent course of the package of punches, the cone of the plug is removed from the roller. Due to the action of the springs, the roller is lifted along the through groove of the power head and the rod is inserted into one of several holes of the integral matrix, thereby fixing it motionless from longitudinal movement on the power head. A truncated platform is made on the protrusion of the middle part plate on one side of the protrusion of the punches package intended for fastening flanges of tires or metal sheets with non-metal sheets not of fabric on one side of the plate of the middle part, cutting edges with steps that are parallel to the cutting edges of the groove are made on the plates of the extreme parts of the punches package integral matrix. A protruding truncated platform made in a plane located vertically with respect to the plane of the middle part of the punch package is placed on a work area for mounting two metal sheets with a sheet of pocket filter cloth on a plate of the middle part of the punches pack. Using the aforementioned truncated pad at the beginning, the sheets are pressed through and then notched. As a result, the end of the formed two metal covering petals will be pressed tightly with the filter cloth. On both sides of the axis of symmetry on the plate of the middle part of the package of punches additionally perform rounded sections with a radius of 8 mm to 10 mm On the plates of the extreme parts of the punch package on either side of the axis of symmetry, one cutting edge is made in a plane vertically with respect to the planes of the plates of the extreme parts. Additionally, on each of the plates of the extreme parts, to ensure the notching of the petals and their removal beyond the joined sheets, on both sides of the axis of symmetry, two cutting edges are made with a radius of curvature ranging from 6 mm to 8 mm. As a result of the difference in the sizes of the rounded sections on the aforementioned cutting edges of the plates of the extreme parts and the rounded sections of the plate of the middle part of the punch package, the extreme parts of the punch package, when fixed on the punch holder, will protrude beyond the rounded sections of the middle part to form grooves for inserting the petals and preserving their thickness when notching. In the punch holder, the plates of the extreme parts of the punch package with the aforementioned elements are set in the same plane. Thus, the cutting edges will be exposed in a single line located vertically with respect to the planes of the above inserts, and then they are fixed. Similarly, the rounded cutting edges of the plates of the extreme parts of the punch package are set in the same plane and then fixed in the punch holder. On the plates of the middle part, additional cuts are made on both sides of the axis of symmetry, which form additional short grooves for introducing metal into them when notching and forcing the aforementioned petals, while maintaining their thickness.

The necessary gap between the braking dog included in the tooth of the ratchet wheel, ranging from 0.1 mm to 0.3 mm, is set due to the longitudinal movement of the kinematic connection of the engine with the oblique washer. The engine, together with the oblique washer fixed along the longitudinal axis on the shaft, is brought into the drive housing, overcoming the force of the springs, press on the roller and the pushing dog mounted on the crack along the longitudinal axis of the device. The tooth of the pushing dog tightly without a gap is brought into engagement with the tooth of the ratchet wheel in such a way that between the tooth of the braking dog and the other tooth of the ratchet wheel there will be a gap in the range from 0.1 mm to 0.3 mm. The set gap is fixed by fixing the aforementioned kinematic connection using two nuts screwed on the protruding part of the engine from the outside and from the inside to the body wall.

On graphic materials, a device for implementing the method is schematically tfived.

In figure 1. - shows a general view of the device with the power head and engine protruding beyond the housing with the possibility of reinstalling them along the longitudinal and transverse axes on the drive housing.

Figure 2. - a side view of the drive housing of the device is shown.

In figure 3. - the drive housing is shown on the other hand.

Figure 4. - a view of the mounting of flanges from tires with an air duct with an offset and fixed power head is shown.

5. - a view of a displaced power head installed for mounting metal sheets and a sheet of pocket filter cloth is shown.

Figure 6 is a view of a groove formed by a forming component with the plates of the extreme parts and the plate of the middle part of the floating punch package.

7 is a view of a floating package of punches of molding elements mounted on the groove of the power head.

On Fig - a view of two working sections of the package of punches mounted on the punch holder, three protruding parts of the integral matrix fixed movably in the guides formed by floating packages of punches of the molding elements.

Figure 9 is a view from the other side of the fork with wedges mounted on a punch holder and a roller mounted in a through groove connected to the rod.

Figure 10 is a view of section aa of the working section of the floating package of punches for attaching sheets of pocket filters.

Figure 11 is a section bB of the working area of a floating package of punches for mounting metal sheets with a sheet of filter fabric.

A device for implementing the inventive method comprises a drive housing 1 on which a pneumatic or electric motor 2 is fixed (see Figure 1), for example in the form of an electric drill. On the other hand, along the longitudinal axis, a monolithic power head 3 is fixed on the drive housing 1, protruding beyond the overall dimensions of the drive housing 1 to a distance that ensures its free installation. The axis of symmetry of the floating punch package installed in the punch holder 4, is shifted by the slider and is located in the plane parallel to the axis of the rod of the backstage of the actuator 1 (see Fig. 4, 5). The power head 3 is equipped with a knot for adjusting the depth of cut with a groove 5, in which the integral matrix 6 is placed with the possibility of resetting the blunt cutting edges to sharp, and if necessary, the detachable matrix 7 is also placed. Grooves 8 and protruding parts 9 are made on the integral matrix 6, in which the molding elements 10 are used serving as its guides 11 fixed on a groove 5 of the housing 1 of the power head 3 for moving the protruding parts 9 of the integral matrix 6 (see Fig. 8, 9). The molding elements 10 are floating packages of punches from the plates of the middle part and the plates of the extreme parts, exposed in the grooves 8 with the possibility of independent movement and fixing on the groove 5. The plates of the middle part have a rounded part with a radius of 3 mm to 5 mm, and plates of the extreme parts have a rounded part with a radius of 2 mm to 4 mm. Due to the difference in the rounded parts, grooves adjustable in depth are obtained. Under the jumper 12 (see FIG. 4), another groove 13 is made to accommodate the U-shaped rib flange from the tires 14 when it is fixed from the inside to the sheet of the air duct 15. In the grooves of the power head 3, on the contrary, along the longitudinal axis on both sides of the axis of symmetry of the aforementioned matrices 6 or 7 is a package of punches 16. On one working section 17 of the package of punches 16, designed for mounting flanges from tires 14 with air duct 15, as well as metal sheets with non-metallic protrusion made with a truncated platform 18, the plate of the middle part 19 and two plates s of the extreme parts 20 and 21 with steps 22 and 23, cutting edges 24 and 25. located horizontally in relation to the aforementioned plates (see Figs. 8, 10, 11). On the other side of the pack of punches 16, another working section 26 is made for fastening two metal sheets 27 and 28 and a filter fabric sheet 29 installed between them (see Figs. 5, 8). On this working section 26, a protrusion 30 is made on the plate of the middle part 19 with a truncated platform 31 made in a plane vertically relative to the plane of the plate of the middle part 19. On both sides of the axis of symmetry, rounded sections 32 and 33 are made with a radius size within from 8 mm to 10 mm. On the plates of the end parts 20 and 21 on both sides of the axis of symmetry, cutting edges 34 and 35 are made, made in a plane vertically located relative to the plane of the above-mentioned plates of the end parts. Undercuts 36 and 37 are made on the plate of the middle part 19 at the beginning of the radius of curvature. Additionally, on both sides of the axis of symmetry on each of the plates of the extreme parts 20 and 21, two cutting edges 38, 39 and 40, 41 are made with a radius of curvature within from 6 mm to 8 mm. (see Fig. 10, 11). When installing and fixing the plates of the end parts 20 and 21 in the punch holder 4 above the middle part 19, the cutting edges 38, 39 and 40, 41 due to the difference in the size of the radius of curvature will be set outside the rounded sections 32 and 33 of the plate of the middle part 19 and undercuts 36 and 37 As a result, grooves 42 and grooves 43 are obtained for outputting the notched petals beyond the sheets 27, 28 and 29 while maintaining their thickness. The working sections 17 and 26 of the package of punches 16 can be reinstalled at an angle from 0 to 180 degrees on the punch holder 4 (see Fig. 8). As well as being fixed with the possibility of independent movement and fixing on the punch holder 4. The working sections 17 and 26 of the floating pack of punches 16 are set opposite the grooves of the protruding parts 9 of the integral matrix 6. In the grooves of the integral matrix 6 there are other floating packages of punches of 44 molding elements 10. Exposed elements molding 10 consisting of plates of the middle part 45 with a radius of curvature of 3 to 5 mm and plates of the outer parts 46 and 47 with a radius of curvature of 2 to 3 mm form grooves 48, 49 (see Fig.6, 7). The molding elements 10 are placed inside, in the grooves of the protruding parts 9 of the integral matrix 6 and fixed in the gaps of the protruding parts 9 in the grooves 8 on the groove 5 of the power head housing, which form the grooves 48 and 49. The grooves of the sheet petals 27, 28 are expanded with grooves 48 and 49 and 29, taken outside the joined sheets without reducing their thickness. In addition, the grooves 48 and 49, fixed on both sides of the axis of symmetry of the protruding parts 9 of the integral matrix 6, are used as guides 50 orienting it when moving. The slider 51 is connected to the rod 52, the backstage 53 (see FIGS. 2 and 3) located inside the drive housing 1. A pusher 54 is installed in the groove of the backstage 53, into the hole 55 of which a crank 56 is mounted fixedly on the ratchet wheel 57. To ensure the impact of the optimal number of pulse-discontinuous transmissions on the floating punches package 16 by the aforementioned kinematic coupling, the ratchet wheel diameter 57 should be in the range from 75 mm to 135 mm. The number of teeth 58 on the ratchet wheel 57 should be in the range from 50 to 90 units. Accordingly, the frequency of pulsed intermittent transmissions to the package of punches 16 should be in the range from 50 to 90 cycles, when passing one full revolution with a ratchet wheel 57 together with the shaft 59 relative to the bearing 60 set in the housing 1 at an angle from 0 to 360 degrees. A biscuit 61 is movably located on one shaft 59 with a ratchet wheel 57, on which a pushing dog 62 is mounted rotatably on its axis, and a roller 63 is mounted on its axis, interacting with an oblique washer 64 mounted on the shaft of a pneumatic or electric drive 2 Each tooth 58 on the ratchet wheel 57, when turned clockwise, on the one hand interacts with a pusher dog 62 mounted on the cracker 61, which periodically enters, pushes and leaves the tooth 58. On the other hand, the twelfth from the aforementioned tooth 58 of the ratchet wheel 57, counting counterclockwise, a similar tooth 58 interacts with another locking braking dog 65 mounted on the housing 1, which also periodically comes in, brakes and leaves the tooth 58. As a result of the application of forces in the radial direction to each tooth 58 the rotation of the ratchet wheel 57 occurs in shocks. The pushing dog 62, periodically engaged with the tooth 58, moves the driven ratchet wheel 57 around the circumference and simultaneously brakes the ratchet wheel 57 simultaneously with the locking brake dog 65 fixed on its axis to the housing 1. This creates a pulsed intermittent force on the ratchet wheel 57 . For stable operation, the fastening of the locking, braking dog 65 is made on a circumference equal to the sum of the step of twelve teeth 58, counting from the pushing dog 62. By moving the pusher 54, the curve with a spike 56 along the backstage groove 53, the radial pulse-discontinuous application of forces from the ratchet 57 is transmitted and converted into a reciprocating pulse-discontinuous application of forces to the stem 52, slider 51, punch holder 4 and continuously transfer them to the floating package of punches 16. On the same axis as with a ratchet 57, a brake drum with a disc 66 is fixedly mounted with a cavity 67 on the periphery in which the rod 68 is installed spring-loaded with a spring 69 and connected to the start button 70 of a pneumatic or electric motor 2 (see Figure 1, 2, 3, 5). A groove 71 is made in the link 68, into which a hook 72 is connected, connected to a plate 73 pivotally mounted on its axis with the housing 1. The plate 73 is axially connected to the beam 74, with a lever 75, which is pivotally mounted on the axis 1. by pressing the start button 70 of the engine 2 due to the above kinematic connection, the lever 75 is rotated and the screw 76, mounted on the pushing dog 62, is turned to the side of the button 70 to start the engine 2. As a result, the pushing dog 62, springs 77 and 78, engages with the tooth 58 ratchet CA 57 with the simultaneous start of the engine 2 with the start button 70 and the simultaneous exit from the cavity 67 of the rod 68 with the transition to the disk 66 of the brake drum. From this moment, it will not be possible to turn off the rotating motor 2 due to the traction pressure 68 to the start button 70 until the ratchet wheel 57 makes one full revolution for 2 to 5 seconds and the punch pack 16 does not fasten the sheets into a packet in an automated mode. The device provides for the engine 2 to stop after passing a full revolution with the ratchet wheel 57 in time coinciding with the end of the fastening of the flange from tires 14 with the air duct 15 or sheets of non-metallic materials with metal sheets or metal sheets with a pocket filter cloth 79 with a total thickness of 1.0 mm or more up to 5.0 mm. When the depression 67 of the disk 66 of the brake drum is rotated opposite to the rod 68, it will enter from the disk 66 into the depression 67 under the pressure of the spring 69, while the rod 68 will instantly move towards the power head 3, will remove the load from the start button 70 and the engine 2 will stop . The shaft can rotate for some time, which does not cause movement of the drive parts. At the same time, due to the pressure of the rod 68, on the hook 72, through the groove 71 on the plate 75 and the rocker 74, mounted on the pushing dog 62 with a screw 76, the pushing dog 62 is disengaged from the tooth 58 and the ratchet wheel 57 is stopped. From the side of the ratchet wheel 57, the pushing dog 62 and the locking dog 65 are connected by a spring 77 (see FIG. 3), and from the cracker side 61 (see FIG. 2), the pushing dog 62 is additionally pressed against the teeth 58 of the ratchet wheel 57 by the spring 78. 1, a handle 80 is fixed. To ensure operator safety from exposure to vibrational stresses and during the connection of sheets between the power head 3, the handle and the housing 1, damper pads 81 made of synthetic materials are installed. The ratchet 58 and the brake drum with the disk 66 are rigidly fixed on the shaft 59. The shaft 59 is located in the bearing 60 mounted in the housing 1. At the same time, the cracker 61 is movably mounted on the shaft 59 (see Figs. 1, 2, 3). For the possibility of independent movement and fixing of the integral matrix 6 on the power head 3, a through groove 82 is made in its housing. A roller 83 is fixed in the groove 82 by the rod 84 connected to it. The rod 84 is installed between the two screws 85 and 86 of the insertion depth adjustment unit for the integral matrix 6 with the ability to enter and exit into one of several holes 87 made along the axis of symmetry on each of the three protruding parts of the integral matrix 6 (see Fig. 8, 9). The integral matrix 6 is placed with the possibility of independent movable and stationary movement and fixing in the groove 5 along the longitudinal axis of the power head 3, as well as with the possibility of its reinstallation in the transverse direction when changing blunt sections to sharp. Some ends of the springs 88 and 89 are mounted on the roller 83, and the other ends of the springs 88 and 89 are placed in one of the three holes 90 made in the cross section of the integral matrix 6. The forces of the springs 88 and 89, the roller 83 together with the rod 84 is held in one of three holes 90 of the integral matrix 6. On both sides of the punch 4 below the cross sections of grooves 91 and 92 (see Fig. 5, 8, 9) for the establishment of tire flanges with the possibility of independent movement and the possibility of independent fixing with screws 93, a plug 94 is placed. On the end parts forks 94 are made of wedges 95 and 96, which are When moving the punch holder 4 periodically lead to the roller 83 and due to them move it together with the rod 84 through the groove 82. The rod 84 can be removed from one of the three holes 87 of the integral matrix 6, freeing it from locking to move relative to the guides 50 formed from forming elements 10 on the power head 3. And it can be brought into one of the three holes 87 of the integral matrix 6, fixing it on the power head 3 from moving. When moving the punch holder 4 in the reverse direction after connecting the sheets 27, 28 and 29 with the flared petals 97 and 98 covering the sheet 29 of the filter fabric 99 connected to the bag, the wedges 95 and 96 are moved from the roller 83. As a result, the springs 88 and 89 the roller 83 and the rod 84 are inserted into one of the three holes 87 of the integral matrix 6 and fixed from longitudinal movement along the axis of the housing of the power head 3 and the package of punches 16 is removed from the resulting connection. To adjust the insertion depth of the integral matrix 6, two screws 85 and 86 are provided. Adjustment of the necessary clearance between the braking dog 65, which is in the range from 0.1 mm to 0.3 mm, which ensures stable entry and engagement of the pushing dog 62 and the braking dog 65, the teeth 58 of the ratchet wheel 57 are driven by two round nuts 100 and 101. The nuts 100 and 101 are mounted on the thread 102 of the protruding part of the engine 2, which is connected to the drive housing 1 with the possibility of independent movement and fixing on the drive housing 1 along the longitudinal B (see FIG. 1). In order to be able to use the method in a particular case, in cramped conditions, the pinion gear 104 is periodically fixed on the oblique washer 64, and on the shaft of the engine 2 is fixed with the driven gear 103, the engine 2 is periodically reinstalled and fixed on each of the two sides on the planes of the drive housing 1 and on a plane located on top of the drive housing. The pinion gear 104 is engaged with the pinion gear 103, while the rod 68 is periodically fixed with the liner 105 connected to the start button 70. To simplify the simplicity of the design of the liner 105 for connection with the rod 68, it is possible to use the method when the engine 2 is reinstalled by the handle 107 to the most the close distance from the rod 68 to the start button 70. This is done by loosening the nuts 100 and 101, turning the engine 2 relative to the housing 1 and then securing it with nuts on the drive housing. The axis 106 on the oblique washer and the motor shaft during reinstallation is constantly fixed (see Fig.1, 2).

The proposed method in the embodiment of fastening flanges from tires 14 with air duct 15 and metal sheets with sheets of synthetic non-metallic materials is used as follows.

Release the round nuts 100 and 101 by turning them on the thread 102, the oblique washer 64 fixed to the shaft together with the motor 2 is then moved along the longitudinal axis of the device, overcoming the forces of the springs 77 and 78, and the roller 63 is moved with the cracker 61 and the pusher dog 62 mounted on it position when the gap between the braking dog 65 and the tooth 58 will be in the range from 0.1 mm to 0.3 mm Then, round nuts 100 and 101 are screwed in threads 102 and the motor 2 with the aforementioned kinematic connection is securely fixed in the wall of the drive housing 1. If necessary, in a particular case, choose a plane on the drive housing 1 to fix the motor 2 on it in a position that ensures that the connection is made in tight spaces conditions. On a selected plane of the drive housing 1, the engine 2, with the drive gear 104 on the shaft, is fixed along the transverse axis of the housing 1. The drive gear 104 is engaged with the driven gear 103, rigidly fixed to the shaft of the oblique washer 64, and the link 68 with the liner 105 is connected to the start button 70. In this case, the axis of the floating punch package 16 will be shifted by the slider relative to the parallel longitudinal axis of the rod 52 and the wings 53. The above-mentioned elements of the working part 17 will also be displayed outside the outer edge of the drive (see Figs. 1, 3, 4 ) The integral matrix 6 with the protruding parts 9 along the grooves 8 is led outside the molding elements 10 along the guides 50. Screws 85 and 86 move the integral matrix 6 towards the working section 17 of the floating package of punches 16 intended for fastening flanges from tires 14 to the air duct 15 set to a certain amount insertion depths of the above sheets. Thereby, it is possible to install a power head 3 for attaching flanges from tires 14 to the air duct 15. The plug 94 with wedges 95 and 96 that are not involved at this stage when attaching sheets to the bag is moved to the extreme position towards the drive housing 1 and fixed on the punch holder 4 below the cross sections of the grooves 90 and 91. After that, the integral matrix 6 will be securely fixed by the rod 84 in one of its holes 87 and the screws 85 and 86 from the longitudinal movement. For the handle 80 on the drive 1 and the other handle 107 of the electric drive 2, the device is installed with a groove with a nominal size ranging from 18 mm to 50 mm, on a flange of tires 14 with a sheet of air duct 15 ranging from 15 × 15 × 8 mm to 35 × 35 × 10 mm with a total thickness of sheets connected into a package from 1.0 to 5.0 mm. Then, the start button 70 of the engine 2 is pressed, for example, an electric drill, as a result, the thrust 68 along the depression 67 is moved towards the start button 70, which, with a hook 72 through the groove 71, the plate 73, rotates relative to the housing 1, overcoming the force of the spring 69. As a result, the the plate 73. the rocker 74, and the lever 75, mounted on an axis in the housing 1 and the holding screw 76, mounted on the pushing dog 62, are moved towards the start button 70. Due to the pressure of the springs 77 and 78, the screw 76, mounted on the pushing dog 62, shifted towards the lever 75 and tol ayuschaya pawl 62 engages with the tooth 58 of the ratchet wheel 57. Continue to press the button 70 to start the stop. After that, the shaft of the engine 2 will begin to rotate, together with the oblique washer 64 fixed to the shaft, which reciprocally acts on the roller 63. The roller 63, the pushing dog 62, mounted on the cracker 61 placed movably on the shaft 59, are reciprocated. This movement of the cracker 61 with the roller 63 and the pushing dog 62 occurs with each complete rotation of the oblique washer 64 in the radial direction. At the same time, the ratchet wheel 57 and the brake drum disk 66 with the pushing dog 62, which are fixedly mounted on the shaft 59, are moved clockwise by a distance of the size of one tooth 58 at each full rotation of the oblique washer 64. Having made a certain number of revolutions with the oblique washer 64, the spherical surface of the rod 68 overcomes the force of the spring 69, withdraw from the cavity 67 and start on the disk 66, close the start button 70 in the "On" mode. Then, the start button 70 is released and waiting for the end of the connection within 2 to 5 seconds in an automated mode. During this period of time, the engine 2 cannot be stopped before passing together with the shaft 59 one full revolution with the ratchet wheel 57 and the brake drum disc 66. At the same time, the pushing dog 62 pressed into the tooth 58 and the ratchet wheel 57, fixedly mounted on the shaft 59, is fixed on the cracker 61 by the pressed springs 77, 78 and rotated clockwise relative to the housing 1 in the bearing 50 by a distance equal to the length of one tooth 58. At the same time, the springs 77 and 78, the locking dog 65 is engaged into another tooth 58 of the ratchet wheel 57 and the ratchet wheel 57 is locked against anti-clockwise rotation. As a result, one gear is created out of the total number, ranging from 50 to 90 gears, intended for pulse-intermittent action on the ratchet wheel 57 to rotate it together with the shaft 59 in the bearing 60. At the same time, a crank 56 fixedly mounted on the rotating ratchet wheel 57 , using the pusher 54, movably mounted on the crank 56 and placed in the groove of the wings 53, the rotational application of pulsed intermittent forces from the ratchet wheel 57 is converted into a reciprocating force on the rod 52. Having received from 50 to 90 impulse discontinuous gears acting through the stem 52, the backstage 53, and the slider 51 on the punches package 16, the flange 14 of the tires 15 × 15 × 8 mm; 20 × 20 × 8 mm; 35 × 35 × 10 mm with air duct 15 with a total thickness of 1.0 to 5.0 mm, fixed in the package. At the same time, a flange of tires 14 with an air duct 15 with overall dimensions from 15 × 15 × 8 mm to 35 × 35 × 10 mm is cut, pressed forward by pulses, jerks and connected to each other in a packet by a protruding truncated platform plate of the middle part. Then, with two cutting edges and steps of two plates of the extreme parts, the pack of punches 16 is simultaneously fixed in the bottom and in the cavity of the connection made. With the further course of the package of punches 16 in the opposite direction, the finished connection together with the flange from the tires 16 and the air duct 15 is removed from the integral matrix 6, then it is moved to the walls of the throat of the power head 3, and then the package of punches is removed from the cavity of the completed connection. At this point, the spherical surface of the rod 68 still sliding on the surface of the rotating brake disc 66, described one full revolution, will be opposite the cavity 67, under the action of the spring 69 will fall into the cavity 67 and remove the force from the start button 70, which will take the "Disconnected" position . At the same time, a groove 73 is moved by a groove 71 with a hook 72. Connected by a yoke 74 with a lever 75, they are moved to the side of the power head 3. Using a lever 75, a screw 76 is lifted to the pushing dog 62, which is disengaged from the tooth 58 and the ratchet wheel 57 has completed one full the traffic is stopped. Similarly, metal sheets are connected in a package with a sheet of non-metallic material placed between them. The result is homogeneous cold point connections with the same geometric dimensions and the same indicators of mechanical strength. At the same time, working conditions are improved, and by reducing power consumption, reducing overall dimensions, they are able to create a mobile portable automated device. In the embodiment of fastening metal sheets with sheets of fabric sections of pocket filters placed between them, the method is implemented in the following order. To ensure that the aforementioned sheets are secured to the bag in a straight line, the floating punch of punches 16 is turned at an angle from 0 to 180 degrees along the longitudinal axis of the power head 3. The fork 94, mounted on the puncheon holder 4, is released from locking, moved and re-secured to the puncheon 4 in the position for the action of the wedges 95 and 96 on the roller 83. The screws 85 and 86 of the insertion depth adjustment unit are turned out, releasing the integral matrix 6. The integral matrix 6 is moved to the position of independent movement and fix cations on the body of the power head 3. This is achieved by periodically introducing and withdrawing the rod 84 into one of the three holes 87. Sheets 27, 28 and 29 are installed in the throat of the power head 3 (see Figure 5). At the time of pressing and subsequent notching by the protruding truncated platform 31 of the plate of the middle part 19, subsequent notching and pressing by the cutting edges 34 and 35 of the plates of the extreme parts 20, 21 located vertically with respect to the plates of the punch package 16, the rod 84 is inserted into one of several holes 87 , and the integral matrix 6 will be in a stationary state (see Fig. 8, 9, 10, 11). The integral matrix 6 is stationary and at the stage of notching the sheets 27, 28 and 29 with rounded cutting edges 38, 39 and 40 and 41, made on the plates of the extreme parts 20 and 21, and the withdrawal of the formed petals beyond the above-mentioned sheets by grooves 42 and 43 of the package punches 16 and is fixed on the power head 3 fixedly by the rod 84 in the hole 87. At this stage, the protruding working parts of the integral matrix 6 are still exposed outside the molding elements 10 and placed in the guides 11 formed by plates of the middle parts 45 and the face s edge portions 46 and 47 of floating punch members forming packages 10 contained in the power head 3. The guides 11 are in the form of rounded grooves 97 (see FIG. 6, 7, 8). The dimensions of the sections of the molding elements 10 are equal to the cross section of the groove of the matrix 6 and are partially located inside in its grooves. The device behind the handles 80 and 107 is mounted on the jaw for fastening to each other in a bag consisting of two metal sheets 27, 28 and one filter sheet 29 made of fabric of one of several sections of the pocket filter mounted on the stock (see Figure 5). Press the button 70 to start the engine 2 and then release it. In this case, the protruding truncated pad 31 of the middle part 19 of the punch pack 16 of the aforementioned sheets is pressed through, then cut by the cutting edges 34 and 35 of the plates of the extreme parts 20 and 21 in a plane vertical with respect to the above plates and the ends of the petals are pushed. Then, with the rounded cutting edges 38 and 39, 40 and 41 of the plates of the end parts 20 and 21, the metal sheets 27 and 28 with the fabric sheet 29 are cut on both sides of the axis of symmetry. The incised sections are withdrawn in the form of petals without reducing the size of their thickness beyond the sheets joined in a packet on both sides of the axis of symmetry into the groove of the matrix 6. Upon further exposure to pulse-discontinuous gears on the punches pack 16, the sheets 27 and 28 and the sheet 29 of fabric together with a package of punches 16, the extracted petals are moved for flaring to the grooves 48 formed by other floating packages of punches 44 of the molding elements 10. At the same time, the wedges 95 and 96 of the fork 94 enter and press on the roller 83, moving it over Ia springs 88 and 89 by a through groove 82 (see. 8, 9). The rod 84 connected to the roller 83 is removed from the hole 87 of the integral matrix 6 and freed from fixing in the groove 5 of the power head 3. At this moment, the grooves 48 formed by the floating packets of punches 44 on the forming elements 10, the flaps 98, 99 and 29 are expanded and obtained ready connection (see Fig.7). At this point, the pack of punches 16 will begin to move in the opposite direction. The wedges 95 and 96 will move away from the roller 83. With the help of springs 88 and 89, the roller 83 is moved through the through groove 82, and the rod 84 connected to it is guided into the hole 87 of the integral matrix 6, which will be fixed motionless in the groove of the power head 3. The punches pack 16 together with connected in a package of sheets 27 and 28 with a sheet of 29 fabric is taken all the way into the puller of the groove of the power head and removed from the connection obtained (see Fig. 5).

Using the method ensures the achievement of the following technical results.

The removal of the protruding parts of the integral matrix of the power head beyond the outer edge of the drive housing ensures the installation of the device on the connected sheets. The possibility of reinstalling the engine on the plane of the housing on both its sides and the plane of the upper part along the transverse axis with a fixed pinion gear on a shaft that engages with a driven gear fixed on an oblique washer, provides the implementation of the method in cramped conditions. Creation by the drive of pulsed-intermittent transmissions in the radial direction and converting them into reciprocating motion with an optimal frequency of action from 50 to 90 units over a period of time from 2 to 5 seconds to periodically re-set working sections of the floating package of punches allows fastening sheets in a package with a thickness of 1.0 mm to 5.0 mm. In this case, the smallest application of forces on the punch package is used. Technological capabilities are expanding when fastening sheets of non-metallic materials with metal sheets when decorating buildings. And also, when fastening sheets in a package during the construction of enclosing structures, in the manufacture of quick-built tents in emergency situations. Allows you to create portable devices with the smallest overall dimensions and weight, which improves working conditions. Due to the fact that the connection of sheets into a package is carried out in an automated mode, homogeneous joints are obtained in terms of mechanical strength and overall dimensions of the hollows of the joints, ranging from 6 × 4 mm to 10 × 4 mm.

There are many known methods used in portable devices, for example, in drills, rotary hammers with rotary percussion mechanisms during drilling and destruction of concrete structures. However, the properties shown in the above methods do not coincide with the properties of the claimed method. Namely, when implementing the known methods, the use of forces with a frequency of pulse-discontinuous transmissions on the punch package from 50 to 90 cycles that affect the joined sheets superimposed on one another is not used. Known methods do not take into account the fact that when they say that the sheets connected in a package fit snugly against each other, in fact this symptom is conditional. There is always a microscopic gap between the sheets and the fact that the joined sheets are not snug in a U- or G-shaped bag. This fact has a positive effect on ensuring consistent cutting and forcing sheets from one to another without destroying the device, which is proved by testing a prototype. In known methods, when implementing a device in which a ratchet wheel is usually used as a driving part, for example, in winches, in the inventive method, the ratchet wheel is used as a driven part moved by a swinging pushing dog. In other known methods using ratchet mechanisms, they can only be used when operating the devices stationary. In addition, the methods of transferring forces using shock-rotational mechanisms used in known portable tools do not convert them into reciprocating with the movement of the rod. Based on the foregoing, we can conclude that the properties shown by the claimed method do not coincide with the properties of known methods. The puncturing of two metal sheets and the filter material enclosed between them at the beginning of a protruding truncated platform in a plane located vertically to the plate of the middle part of the punch package provides a density of the ends of the petals. And their subsequent incision by cutting edges located vertically in the plane with respect to the plates of the punches package ensures the insertion of the petals into the groove of the integral matrix and the withdrawal from it without breaking their endings. The notching and punching of the protruding rounded cutting edges of the plates of the extreme parts, exposed beyond the rounded sections of the plates of the middle part of the floating package of punches, provide the formation of rounded grooves to maintain thickness when removing the petals. Moreover, in the claimed method, the grooves are formed without the laborious sharpening operation. In addition, the aforementioned grooves can change their size in depth by reinstalling the plates of the floating package of punches of the molding elements. These sizes can be selected depending on the total thickness of the joined sheets in the package. Flaring of the metal covering petals and filter material made of fabric enclosed into the groove of the integral matrix and the filter material enclosed between them on both sides of the axis of symmetry by rounded grooves formed by other floating packages of punches of forming elements ensure the safety of the thickness of the metal petals and regulation of the depth of the grooves. For reliable engagement and disengagement of the ratchet dog from the ratchet wheel tooth mounted on the cracker, the braking dog mounted on the housing must have a clearance between 0.1 mm and 0.3 mm when engaged with another ratchet tooth .

The clearance adjustment is carried out by moving and fixing the entire kinematic connection including: a slanting washer, a roller, a pushing dog that are mounted on a swinging cracker along the longitudinal axis of the device with two round nuts, which makes it easy to set the aforementioned gap. And also allows you to reliably fix the aforementioned kinematic connection and the protruding part of an electric or pneumatic motor, wound inside the drive housing to its wall. An important technical result in the implementation of the method is to obtain compounds with overall dimensions of the depressions ranging from 6 × 4 mm to 10 × 4 mm, with a mechanical strength of compounds of one and a half, two times the mechanical strength of similar known compounds.

A device is known (see patent 2467820), in which three or four sheets with a total thickness of 2 to 4.5 mm are successfully fixed by pressure on the levers manually due to the extended truncated platform plate of the middle part, cutting edges, steps of the extreme parts of the floating punches pack. However, it is impossible with the known device to obtain uniform cold point connections with the same mechanical strength due to the presence of the human factor. In addition, a known device cannot reliably and tightly fasten several metal sheets and one non-metal sheet of filter fabric placed between them into the bag. Such placement of a non-metallic sheet between metal sheets adversely affects their interlocking.

A device is known (see A.s. 1155439) comprising a housing, an engine with a start button placed therein, a worm gear connected to it, on the shaft of the worm wheel of which there is a profiled cam and actuators made in the form of two-arm levers interacting with one shoulder with the cam , a brake drum is fixed on the shaft of the worm with a disc with a hollow at the periphery of a thrust contacting a thrust connected to the engine turning button. The known device fixes two sheets with a total thickness of up to 1.6 mm and obtain homogeneous joints with almost identical indicators of mechanical strength in an automated mode. The disadvantages of the known device include the impossibility of its installation on flanges from tires for mounting with an air duct. The inability to install it on joints of metal sheets with non-metal, metal sheets with a sheet of fabric, for example, pocket filters for air purification, on pipes for attaching to the plane of buildings of lightweight structures. The use of a known device for fastening sheets in a bag with a thickness of 1.0 to 5.0 mm precludes its use as a portable automated tool because of the weight and overall dimensions. The known device is the closest analogue.

The above disadvantages are eliminated by the claimed device, which is implemented in the General case of its use. To set the necessary gap between the braking dog and the tooth of the ratchet wheel, which is in the range from 0.1 mm to 0.3 mm, the kinematic connection is moved along the longitudinal axis in the device. The kinematic connection includes the engine on the shaft of which the oblique washer is rigidly fixed, which, overcoming the efforts of the springs, move the roller pushing the dog and the cracker on which they are fixed. After setting the required clearance, the aforementioned kinematic connection is rigidly fixed in the wall of the drive housing with nuts installed on the thread of the motor housing. When fastening flanges from tires with an air duct or two metal sheets with one sheet of non-metallic material enclosed between them, the appropriate working section of the floating punch packet is selected for this, reinstall and fix it on the punch holder (see Figs. 4 and 5). A device in the general case of its use consists of a drive housing, an electric or pneumatic motor, and a power head which is extended beyond the outer edges of the drive. At the same time, the outgoing axis of the rod from the drive housing is offset from the axis of the floating punch package for the convenience of installing the pharynx of the device on sheets connected to the package. In the drive housing, the rotational movement of the motor shaft with the oblique washer is moved, overcoming the efforts of the springs, the roller and the pushing dog fixed on the cracker. At the same time, the ratchet wheel receives rotation from the cracker through the pushing dog fixed on it. When the oblique washer rotates one revolution, the pushing dog, brought into the tooth, turns the ratchet wheel by one tooth. The initial position of the device is determined by the disconnecting mechanism. When the operator presses the engine’s start button, the thrust, overcoming the spring force and connected with the start button, leaves the cavity on the brake disc, which is rigidly seated on the same shaft as the ratchet wheel. At the same time, the engine turns on and the start button is released by the operator. In this case, the plate connected to the beam connected to the lever rotates it and removes the screw mounted on the pushing dog. At this point, the pushing dog spring-loaded on both sides will mesh with the ratchet tooth. The brake disc manages to turn, press on the traction and closes the start button in the "On" mode, preventing the engine from turning off. The start button will remain pressed until the entire cycle of attaching sheets to the bag has passed. That is, one full turn of the crank with a ratchet wheel. After completing the fastening of the sheets in the package, the thrust falls by means of a spring into the cavity of the brake disc and stops pressing the start button, puts the engine in the “Disabled” position. At the same time, a lever is rotated through the plate and the beam, pivotally mounted on an axis in the drive housing, which at the second end lifts the screw connected to the pushing dog and breaks the power circuit. The pushing dog will disengage from the tooth and the ratchet wheel will stop. The engine can rotate for some time, which does not cause movement of the working parts of the drive. When making one full revolution with a ratchet wheel, it cyclically moves and stops with each movement by one dog pushing and braking dogs. As a result, pulsed-intermittent transmissions in the radial direction are created, which are converted into reciprocating, due to the pusher, crank, link and rod. When continuously, continuously, receiving pulse-discontinuous transmissions by a floating packet of punches, the above-mentioned sheets are fixed into the packet in the manner described above. At the same time, tests of the prototype showed, for example, that when fastening three sheets in a flange pack of tires with a total thickness of 3.0 mm, the diameter of the ratchet wheel should be 108 mm. There should be 72 teeth on the ratchet wheel, this number of teeth will correspond to 72 pulsed-intermittent gears with one full ratchet revolution. Sheets of a tire flange with an air duct with a total thickness of 3.0 mm, which were not perfectly pressed tightly together, were connected by one working section of the punches pack in one complete revolution for 3.0 seconds at an engine power of 1050 watts. The weight of the portable device was not more than 5.0 kg.

The overall dimensions of the hollows of the compounds are in the range from 6 × 4 mm to 10 × 4 mm. The data on the test results of the samples on the shear of the connected flanges from the tires with the duct showed an excess of mechanical strength in one and a half, two times in comparison with the strength of similar compounds. In another particular case, when it is necessary to fasten sheets in a package in cramped conditions, the device uses reinstallation and fixing of the motor from two sides on the plane of the drive housing on both sides along the transverse axis and connecting the first two on one plane. At the same time, a conical pinion gear is engaged on the engine shaft, which engages with a similar driven gear rigidly fixed to the oblique washer (see Figure 1). The gap between the thrust and the start button resulting from engine reinstallation is eliminated by installing a liner equal to the size of the gap that appears. As a result of such reinstallations, they get additional opportunities for fixing sheets in a package in cramped conditions. Then, the flange sheets of the tires with the duct sheet are fixed into the bag as described above.

In another particular case, when attaching two metal sheets and one non-metal sheet of fabric located between them, the device is used in the following order. For this, a truncated platform, rounded sections with a radius of 8 mm to 10 mm, and undercuts on both sides of the axis of symmetry are made on the plate of the middle part of the floating punch package. And on two plates of the extreme parts along the axis of symmetry, one cutting edge is made in a plane located vertically with respect to them. As well as two cutting edges on either side of the axis of symmetry located horizontally to the plates of the extreme parts with a radius of curvature from 6.0 mm to 8.0 mm. On the contrary, the aforementioned working section of the floating package of punches on the power head is fixed with the possibility of independent movement and fixation of an integral matrix. In the grooves of the integral matrix, other floating packages of punches of the molding elements are made, fixed in the groove of the power head, partially included in the grooves of the protruding parts of the integral matrix. Forming elements designed for expanding the raised petals simultaneously serve as guides to ensure the movement of the protruding parts of the integral matrix. Independent movement and fixing of the integral matrix is ensured by a roller connected to the rod, located in the through hole of the power head, spring-loaded by springs, one ends of which are inserted into the holes on the short side of the matrix, and the other ends are brought under the roller. A spring-loaded rod connected to the roller is periodically brought in and brought out into one of several holes in the matrix with the help of fork wedges periodically acting on the roller and move it together with the rod through the through groove. The holes in the matrix for fixing the springs and the rod and guides in the form of molding elements for its movement are made in increments of a multiple of the step of reinstalling the integral matrix when replacing blunt cutting edges with sharp ones. Two metal sheets with a sheet of fabric enclosed between them are installed in the mouth of the device and press the start button. During the passage of the ratchet wheel half the revolution from 0 to 180 degrees protruding truncated platform area of the plate of the middle part of the package of punches, the sheets are pressed in the plane located vertically relative to the plate of the middle part. Then, on both sides of the squeezed area, the two sheets are incised and brought out of the joined sheets by two cutting edges of the plates of the extreme parts. Then, with four rounded cutting edges protruding over the rounded sections of the middle part of the punch package on both sides of the axis of symmetry, the package of sheets is cut and the resulting petals are grooved outside the joined sheets. With further movement of the extracted petals together with the sheets, together with a package of punches towards the forming elements, the wedges of the fork, overcoming the efforts of the springs, press on the roller and remove the rod from the hole of the integral matrix. The rod, withdrawn from the hole of the integral matrix, moving with the roller along the through groove across the power head will release the integral matrix for moving along the power head relative to the motionlessly fixed floating packages of the punches of the molding elements to the side of the drive. And with the tuned plates of the middle parts with the plates of the extreme parts to the appropriate depth, the grooves of the molding elements are expanded and pressed through. During the passage of the ratchet wheel a full revolution from 0 to 360 degrees, the floating package of punches constantly experiencing pulse-discontinuous transmissions will begin to move in the opposite direction to the drive along with the sheets connected in the package. At this moment, the wedges of the fork will move away from the roller pressed by them with the shaft fixed to it. With two springs, the rod is inserted into the hole of the integral matrix and fixed it motionless in the power head (see Fig. 5, 8, 9). A floating bag of punches with connected sheets and flared petals is diverted from the molding elements from the opening of the resulting compound. By pulling the start button into the depression of the brake disc, the start button is released and the engine is stopped as described above.

The proposed device provides the following technical results.

Working conditions are improved and the influence of the human factor is eliminated when fastening sheets in a package in an automated mode. The compounds are homogeneous with a slight deviation of mechanical strength.

Expanding technological capabilities in the use of the device when attaching many metal sheets with sheets of non-metallic materials or fabric. For example, when finishing industrial and civil construction projects, when finishing coatings with plates made of synthetic materials, when attaching nozzles with flanges for installing equipment for roof fans, windows, manholes, hatches on building planes from lightweight structures.

The total weight of the device and the time for making connections are reduced in comparison with the use of drives of other known devices for the same purpose when fastening sheets in a bag with a total thickness of 1.0 mm to 5.0 mm. The overall dimensions of the hollows of the joints made using the device are in the range from 6 × 4 mm to 10 × 4 mm.

The portable automated device can be made in an identical or equivalent embodiment, with the engine located along the longitudinal axis of the drive housing for mounting in a package of flanges from tires with an air duct.

The portable automated device can be made in an identical or equivalent embodiment for fastening metal sheets with sheets of non-metallic materials in a pact, with the engine located along the longitudinal axis of the drive.

The portable automated device can be made in an identical or equivalent embodiment with the engine located along the longitudinal axis of the drive housing, for fastening metal sheets in a bag with a pocket filter sheet placed between them. In particular applications of the device, the motor may be located along the transverse axis of the drive housing.

In all of the above options, the device can be used in stationary mode, for example, on a stand with a power head spaced apart from the drive housing, and also used as a portable tool to fix large parts in a package.

Claims (7)

1. A device for connecting sheet metal parts into a bag with a total thickness of 1.0 mm to 5.0 mm, comprising a drive housing, a pneumatic or electric motor mounted on it, the gearbox of which has the ability to adjust the clearance located along the longitudinal axis of the drive and protruding beyond dimensions of the drive housing, a power head with a rod and a link, located inside the case and connected to the rod of the link, a slider mounted on it a floating package of punches made with the possibility of reinstallation and containing the middle part plate and the plate of the extreme parts, on which two working sections are made from different sides, an integral matrix, aligned on the same axis with a floating pack of punches in a plane parallel to the axis of the rod, a pusher with a hole installed in the backstage groove, a ratchet wheel made in diameter from 75 mm to 135 mm and the number of teeth from 50 to 90, a fixed crank fixed to it, inserted into the pusher hole, a braking dog fixed to the drive housing on the axis, movably located on the same shaft with the ratchet to olesha cracker mounted on it with the possibility of rotation each on its axis pushing the dog and roller mounted on the drive shaft oblique washer interacting with the mentioned roller, brake drum mounted on the same axis with the ratchet wheel, the disk of which has a cavity mounted spring loaded rod , a start button connected to said rod, a plate pivotally mounted on its axis on the housing and connected by a hook to said rod, a rocker mounted on a pushing dog by a screw and connected to said th plate, a lever pivotally mounted on an axis on the body and used to place and drive the pushing dog into the ratchet wheel tooth, while the pusher with a crank is made with the possibility of moving along the backstage groove and transmitting and converting it into reciprocating pulse-intermittent application of forces to the rod, slider, punch holder and a floating punch package, the pushing dog is configured to rotate the ratchet wheel by one tooth while the oblique washer is rotated one revolution, and the braking dog is mounted with a with a adjustable gap with respect to the teeth of the ratchet wheel with the help of two round nuts mounted on the thread of the protruding part of the engine gearbox brought into the drive housing, with the possibility of independent movement and fixing on the drive housing. 2. The device according to claim 1, in which for connecting flanges from tires with a sheet of duct or metal sheets with non-metal sheets, one of the aforementioned working sections of the floating punch package contains a protrusion with a truncated platform, a middle part plate and two end parts plates with steps and cutting edges horizontally relative to said plates. 3. The device according to claim 1 or 2, which is equipped with a conical pinion gear fixed to the electric drive shaft and a driven gear fixed to the oblique washer and a liner installed between the thrust and the start button, while the engine with the pinion gear is configured to periodically reinstall and fix on each plane from two sides of the drive housing and on a plane connecting the two planes for periodic engagement of the drive gear with the driven gear along the transverse axis of the drive housing. 4. The device according to claim 1, in which for connecting two metal sheets into a packet with a filter cloth sheet placed between them, a floating punches pack is installed with the possibility of independent movement and fixing on the groove of the power head, placement in the grooves of the protruding parts of the integral matrix and the formation of grooves made with the possibility of regulating their depth and serving as guides of the integral matrix, while the radius of curvature of the plates of the extreme parts of the floating package of punches is less than the radius of curvature of the square ina middle part, one of the working sections of the floating punches package is made with a truncated platform on the protruding part of the plate of the middle part, located in a vertical plane relative to the plane of the plate of the middle part, with rounded sections with a radius of 8 mm to 10 mm and undercuts located on both sides from the axis of symmetry of the plate of the middle part of the floating package of punches, on the plates of the extreme parts of the floating package of punches on both sides of the axis of symmetry are made cutting edges located in a vertical plane relative to the said plates, and additional rounded cutting edges with a radius of 6 mm to 8 mm, made on the plates of the extreme parts in the horizontally located to the plates of the extreme parts of the plane, with the formation of the above-mentioned inserts on each other on both sides of the axis of symmetry depth-adjustable grooves. 5. The method of connecting sheet metal parts in a package with a total thickness of 1.0 mm to 5.0 mm using the device according to any one of paragraphs. 1-4, including the placement of the connected sheet parts in the power head of the drive housing, their connection with the working section of the floating package of punches by pulse-intermittent notching and punching and subsequent fixing. 6. The method according to p. 5, in which the connection is made in a package of flanges from tires with a sheet of duct or metal sheets with non-metallic using the working section of the floating package of punches, while the integral matrix is moved towards the said working section, cutting and forcing is carried out by a protruding truncated platform plates of the middle part of the working section, and fixing is carried out by cutting edges and steps of two plates of the extreme parts of the said working section. 7. The method according to p. 5, in which the connection is made in a package of two metal sheets and one sheet of filter cloth placed between them using the working section of a floating package of punches, the integral matrix is fixed with the possibility of independent movement and fixing on the power head, notching and punching are carried out on both sides of the axis of symmetry of the floating punches package with a truncated platform of the middle part of the working section, and then the cutting edges of the plates of the extreme parts are simultaneously rounded and cutting edges and rounded portions of the plate middle portion receive two rounded grooves on both sides of the axis of symmetry, which is output via the incised portion beyond the petals joined sheets with preservation of their thickness along the entire length and the flared petals derived performed floating package punches.

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