Stamping equipment for stamping equipment

Abstract

The present invention discloses a stamping device for stamping equipment, which comprises a stamping main shaft and an eccentric shaft module, a multi-link module and a stamping shock-absorbing reverse thrust mechanism installed on a machine base, wherein the multi-link module comprises a linkage tilting seat and a connecting rod hinged at the middle part of the lower end of the linkage tilting seat, wherein the lower end of the connecting rod is hinged to the upper end of the stamping main shaft, the front end of the linkage tilting seat is hinged to the lower end of the eccentric shaft module, and the rear end of the linkage tilting seat is hinged to the machine base, so that the eccentric shaft module drives the linkage tilting seat to swing up and down, and the linkage tilting seat moves up and down. During the swinging process, the connecting rod drives the stamping main shaft to reciprocate in the vertical direction; the stamping shock-absorbing reverse thrust mechanism includes: a shock-absorbing reverse thrust arm and a spring, the rear end of the shock-absorbing reverse thrust arm is hinged with the stamping main shaft, the upper end of the spring is pressed against the middle part of the lower end of the shock-absorbing reverse thrust arm, and the lower end of the spring is pressed against the machine base; a pivot seat is provided on the upper end surface of the front end of the shock-absorbing reverse thrust arm, and a pivot groove with an upward opening is provided on the upper end of the pivot seat, and the pivot groove is sleeved with the pivot on the machine base under the elastic force of the spring and serves as a fulcrum.

Description

Technical field:

[0001] The present invention relates to the technical field of stamping equipment, in particular to a stamping device for stamping equipment. Background technology:

[0002] Stamping is a production technology that uses the power of conventional or special stamping equipment to directly subject sheet metal to deformation force in the die and deform it, thereby obtaining product parts of a certain shape, size and performance.

[0003] Stamping equipment is an indispensable tool for stamping processing. The stamping equipment in the prior art all uses an eccentric shaft module to directly connect the stamping spindle, that is, the eccentric shaft module directly drives the stamping spindle to move up and down, so as to achieve the purpose of improving the stamping power. However, since the eccentric shaft module directly drives the stamping spindle to move up and down, its stroke is short, and the stamping spindle is prone to shaking and wear. The stamping spindle may deviate when it moves up and down, which affects the stamping quality.

[0004] In addition, since the eccentric shaft module directly drives the stamping spindle to move up and down and back and forth, there is no shock-absorbing structure or reverse thrust structure in between, which results in loud noise when the stamping equipment is running and easily causes damage to the stamping spindle, thus affecting the stamping quality. Moreover, when the eccentric shaft module directly drives the stamping spindle to move upward, a large force is required, that is, the motor load used to drive the eccentric shaft module is large, which is labor-intensive and power-consuming, causing great trouble to the user.

[0005] In view of this, the inventor proposes the following technical solution. Summary of the invention:

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a punching device for a punching equipment.

[0007] In order to solve the above technical problems, the present invention adopts the following technical scheme: the stamping device for the stamping equipment includes a stamping spindle installed on a machine base and an eccentric shaft module for driving the stamping spindle to slide up and down, and a multi-link module is also connected between the eccentric shaft module and the stamping spindle, and the multi-link module includes a linkage cocking seat and a connecting rod hinged at the middle part of the lower end of the linkage cocking seat and distributed in a vertical state, the lower end of the connecting rod is hinged to the upper end of the stamping spindle, the front end of the linkage cocking seat is hinged to the lower end of the eccentric shaft module, and the rear end of the linkage cocking seat is hinged to the machine base, so that the eccentric shaft module drives the linkage cocking seat to swing up and down, and the linkage cocking seat cooperates with the connecting rod to drive the stamping during the up and down swinging process. The main shaft reciprocates in the vertical direction; a stamping shock-absorbing reverse thrust mechanism is also arranged between the stamping main shaft and the machine base, and the stamping shock-absorbing reverse thrust mechanism includes: a shock-absorbing reverse thrust arm and a spring installed in cooperation with the shock-absorbing reverse thrust arm, the rear end of the shock-absorbing reverse thrust arm is hinged to the stamping main shaft, and swings up and down as the stamping main shaft slides up and down, the upper end of the spring presses against the middle part of the lower end of the shock-absorbing reverse thrust arm, and the lower end of the spring presses against the machine base; a pivot seat is arranged on the upper end surface of the front end of the shock-absorbing reverse thrust arm, and a pivot groove with an upward opening is arranged on the upper end of the pivot seat, and a pivot is arranged on the machine base, and the pivot groove of the pivot seat is sleeved with the pivot under the elastic force of the spring, and serves as a fulcrum for the up and down swinging of the shock-absorbing reverse thrust arm.

[0008] Furthermore, in the above technical solution, the eccentric shaft module includes an eccentric shaft rotatably mounted on the machine base and a crank sleeved on the eccentric shaft and distributed in a vertical state, and the lower end of the crank is hinged to the front end of the linked cocking seat.

[0009] Furthermore, in the above technical solution, the upper end of the crank has a circular hole; the eccentric shaft has an eccentric protrusion, and the eccentric protrusion is placed in the circular hole; the crank includes an upper ring seat and a crank body locked together by screws, the lower end of the upper ring seat is formed with a first semicircular groove, and the upper end of the crank body is formed with a second semicircular groove, and the second semicircular groove is connected to the first semicircular groove to form the circular hole.

[0010] Furthermore, in the above technical solution, the linked rocker seat includes a first linked rocker and a second linked rocker, and a first hinge shaft, a second hinge shaft, and a third hinge shaft which are arranged between the first linked rocker and the second linked rocker and can rotate, and a gap is formed between the first linked rocker and the second linked rocker, the first hinge shaft is connected to the lower end of the crank, the second hinge shaft is connected to the upper end of the connecting rod, and the third hinge shaft is connected to the machine base; bearings are arranged at both ends of the first hinge shaft, the second hinge shaft, and the third hinge shaft, and the bearings are fixed in the first linked rocker and the second linked rocker.

[0011] Furthermore, in the above technical solution, the stamping spindle includes a spindle core and a spindle seat fixed to the periphery of the spindle core, the spindle seat is inserted into an axial hole set in the machine base, and the upper end of the spindle core is hinged to the lower end of the connecting rod.

[0012] Furthermore, in the above technical solution, a stamping connecting plate is fixed to the lower end of the stamping spindle, and a plurality of guide rods are arranged at the rear end of the stamping connecting plate, and the guide rods penetrate into the guide holes arranged in the machine base.

[0013] Furthermore, in the above technical solution, a fork portion in the shape of a semi-square frame is formed at the rear end of the shock-absorbing reverse thrust arm, and the fork portion is sleeved on the outer periphery of the upper end of the stamping spindle and is hinged by a hinge.

[0014] Furthermore, in the above technical solution, a second oil channel for lubricating oil flow is arranged on the periphery of the hinge, and the second oil channel includes a second annular oil groove arranged on the periphery of the hinge, a third annular oil groove arranged at the end of the hinge, and a second connecting hole formed inside the hinge and connecting the second annular oil groove and the third annular oil groove.

[0015] Furthermore, in the above technical solution, a strip oil storage groove is arranged at the bottom of the pivot groove in the pivot seat, and a third connecting hole penetrating the bottom surface of the pivot seat is also arranged at the bottom of the strip oil storage groove; a groove body is arranged in the middle part of the lower end of the shock-absorbing reverse thrust arm, and the upper end of the spring is placed in the groove body.

[0016] Furthermore, in the above technical solution, an oil plate is installed between the upper end surface of the front end of the shock-absorbing reverse thrust arm and the pivot seat, and a plurality of interconnected first oil storage grooves are arranged on the upper end surface of the oil plate, and oil filling holes are arranged on the side of the oil plate. A first connecting hole penetrating the first oil storage groove and the oil filling hole is also arranged in the oil plate; the lower end surface of the pivot seat covers the upper end of the first oil storage groove.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0018] 1. The present invention adds a multi-link module, which makes the travel between the eccentric shaft module and the stamping spindle longer, so that the linked lift seat cooperates with the connecting rod to drive the stamping spindle to perform stable reciprocating motion in the vertical direction (i.e., straight up and down motion) during the up and down swinging process. The stamping spindle will not be offset, which can achieve the effect of saving labor and electricity, and can ensure the stamping quality. At the same time, it will not cause wear of the stamping spindle, thereby ensuring the service life of the product; in addition, since the front end of the linked lift seat is hinged to the lower end of the eccentric shaft module, the rear end of the linked lift seat is hinged to the machine base, and the middle part of the lower end of the linked lift seat is hinged to the connecting rod, it is subjected to force at three points, so that the reverse force generated by the later operation of the stamping spindle will not directly act on the eccentric shaft module, thereby extending the service life of the eccentric shaft module. Due to the addition of the multi-link module, the punching force of the punching spindle will not be affected regardless of the speed of the eccentric shaft module, that is, the punching force of the punching spindle is the same when the speed is slow or fast, thereby ensuring the punching quality. In addition, due to the multi-link module, the overall clearance of the entire structure of the present invention is small, the degree of wedging is high, and the punching product is more stable and of better quality.

[0019] 2. When the stamping shock-absorbing reverse thrust mechanism is working, when the stamping spindle moves downward, the shock-absorbing reverse thrust arm swings downward with the pivot groove as the fulcrum, that is, the end point of the shock-absorbing reverse thrust arm hinged to the stamping spindle swings downward. At this time, the spring will be compressed, and the reaction force generated during the compression of the spring will have a buffering and shock-absorbing effect on the downward stamping movement of the stamping spindle, which can reduce the vibration of the machine without generating a large noise, and can protect the stamping spindle to a certain extent and ensure the stamping quality of the stamping spindle; subsequently, when the stamping spindle is reset and moves upward, the spring is released from the compressed state and generates an upward reaction force, which pushes the stamping spindle to assist the stamping spindle to move upward, thereby reducing the motor load and achieving the purpose of saving labor and electricity, making the present invention highly competitive in the market. Description of the drawings:

[0020] Figure 1 is a perspective view of a stamping device installed with the present invention;

[0021] Figure 2 yes Figure 1 A cross-sectional view of

[0022] Figure 3 It is a schematic diagram of the internal mechanism of the present invention;

[0023] Figure 4 yes Figure 3 The main view;

[0024] Figure 5 is a stereogram of the eccentric shaft in the present invention;

[0025] Figure 6is a three-dimensional diagram of the first hinge axis in the present invention;

[0026] Figure 7 is a cross-sectional view of the first hinge axis in the present invention;

[0027] Figure 8 is a stereoscopic diagram of a shock-absorbing reverse thrust arm in the present invention;

[0028] Fig. 9 is a three-dimensional diagram of the hinged member of the present invention;

[0029] Fig.10 is a three-dimensional diagram of the pivot seat of the present invention;

[0030] Fig.11 It is a three-dimensional diagram of the oil plate of the present invention;

[0031] Fig.12 It is a cross-sectional view of the oil plate of the present invention. Specific implementation method:

[0032] The present invention is further described below in conjunction with specific embodiments and drawings.

[0033] See Figure 1-12As shown, a stamping device for stamping equipment includes a stamping spindle 2 installed on a machine base 1 and an eccentric shaft module 3 for driving the stamping spindle 2 to slide up and down, and a multi-link module 4 is also connected between the eccentric shaft module 3 and the stamping spindle 2, and the multi-link module 4 includes a linkage seat 41 and a connecting rod 42 hinged at the middle of the lower end of the linkage seat 41 and distributed in a vertical state, the lower end of the connecting rod 42 is hinged to the upper end of the stamping spindle 2, the front end of the linkage seat 41 is hinged to the lower end of the eccentric shaft module 3, and the rear end of the linkage seat 41 is hinged to the machine base 1, so that the eccentric shaft module 3 drives the linkage seat 41 to swing up and down, and the linkage seat 41 cooperates with the connecting rod 42 to drive the stamping spindle 2 to reciprocate in the vertical direction during the up and down swinging process. Due to the addition of the multi-link module 4, the travel between the eccentric shaft module 3 and the stamping spindle 2 becomes longer, so that the linked lift seat 41 cooperates with the connecting rod 42 to drive the stamping spindle 2 to perform stable reciprocating motion in the vertical direction (i.e., straight up and down motion) during the up and down swinging process. The stamping spindle 2 will not be offset, which can achieve the effect of saving labor and electricity, and can ensure the stamping quality. At the same time, it will not cause wear of the stamping spindle 2, thereby ensuring the service life of the product; in addition, since the front end of the linked lift seat 41 is hinged to the lower end of the eccentric shaft module 3, the rear end of the linked lift seat 41 is hinged to the machine base 1, and the middle part of the lower end of the linked lift seat 41 is hinged to the connecting rod 42, it is subjected to force at three points, so that the reverse force generated by the later operation of the stamping spindle 2 will not directly act on the eccentric shaft module 3, thereby extending the service life of the eccentric shaft module 3. Due to the addition of the multi-link module 4, no matter the speed of the eccentric shaft module 3 is high or low, it will not affect the punching force of the punching spindle 2, that is, the punching force of the punching spindle 2 is the same when the speed is slow or fast, thereby ensuring the punching quality. In addition, due to the multi-link module 4, the overall gap of the entire structure of the present invention is small, the degree of wedging is high, and the punching product is more stable and of better quality.

[0034] The eccentric shaft module 3 includes an eccentric shaft 31 rotatably mounted on the machine base 1 and a crank 32 sleeved on the eccentric shaft 31 and distributed in a vertical state, and the lower end of the crank 32 is hinged with the front end of the linkage seat 41. The upper end of the crank 32 has a circular hole 320; the eccentric shaft 31 has an eccentric convex portion 311, and the eccentric convex portion 311 is placed in the circular hole 320, so as to achieve the purpose of eccentric driving. When the lower end of the eccentric convex portion 311 contacts the lower inner wall of the circular hole 320, it is the bottom dead point. When passing through the bottom dead point, due to the eccentric characteristics, it is about 5 degrees. During this period of time, the crank 32 will not be driven to move upward, that is, the pressure of the stamping spindle 2 is maintained when it stops, so that the shape of the product is fixed under this pressure, and it is not easy to rebound, thereby ensuring the stamping quality.

[0035] The linked rocker seat 41 includes a first linked rocker 411 and a second linked rocker 412, and a first hinge shaft 413, a second hinge shaft 414, and a third hinge shaft 415 which are arranged between the first linked rocker 411 and the second linked rocker 412 and can rotate. A gap is formed between the first linked rocker 411 and the second linked rocker 412. The first hinge shaft 413 is connected to the lower end of the crank 32, the second hinge shaft 414 is connected to the upper end of the connecting rod 42, and the third hinge shaft 415 is connected to the base 1. The linked rocker seat 41 of this structure can be better hinged with the base, the crank 32 and the connecting rod 42.

[0036] Bearings 416 are disposed at both ends of the first hinge shaft 413 , the second hinge shaft 414 , and the third hinge shaft 415 . The bearings 416 are fixed in the first linked rocker plate 411 and the second linked rocker plate 412 .

[0037] The first articulated shaft 413 , the second articulated shaft 414 , and the third articulated shaft 415 are all provided with a first oil passage, so that conventional oil pipes can be saved, parts can be reduced, and the tedious installation and maintenance of the oil pipes can be avoided.

[0038] The first hinge shaft 413 is provided with a plurality of first annular oil grooves 401 on its periphery. The first hinge shaft 413 is provided with a first oil hole 402 extending from its front end to the rear end, and the first oil hole 402 is further provided with a first connecting hole 403 to connect with the first annular oil groove 401. The first annular oil groove 401, the first oil hole 402 and the first connecting hole 403 constitute the first oil passage, which is used for the flow of lubricating oil. The first oil hole 402 extends through the front end and the rear end of the first hinge shaft 413, which is convenient for oiling.

[0039] The structures of the second hinge shaft 414 and the third hinge shaft 415 are the same as that of the first hinge shaft 413 .

[0040] The crank 32 includes an upper ring seat 321 and a crank body 322 locked together by screws. The lower end of the upper ring seat 321 is formed with a first semicircular groove, and the upper end of the crank body 322 is formed with a second semicircular groove. The second semicircular groove is connected with the first semicircular groove to form the circular hole 320.

[0041] The stamping spindle 2 includes a spindle core 21 and a spindle seat 22 fixed to the periphery of the spindle core 21 . The spindle seat 22 is inserted into the shaft hole 11 provided in the machine base 1 . The upper end of the spindle core 21 is hinged to the lower end of the connecting rod 42 .

[0042] A stamping connecting plate 23 is fixed to the lower end of the stamping main shaft 2, and a plurality of guide rods 231 are arranged at the rear end of the stamping connecting plate 23. The guide rods 231 penetrate into the guide holes arranged in the machine base 1, so as to further ensure that the stamping main shaft 2 can stably perform reciprocating stamping work straight up and straight down.

[0043] A stamping shock-absorbing reverse thrust mechanism 5 is also arranged between the stamping main shaft 2 and the machine base 1, and the stamping shock-absorbing reverse thrust mechanism 5 includes: a shock-absorbing reverse thrust arm 51 and a spring 52 installed in cooperation with the shock-absorbing reverse thrust arm 51, the rear end of the shock-absorbing reverse thrust arm 51 is hinged to the stamping main shaft 2, and swings up and down as the stamping main shaft 2 slides up and down, the upper end of the spring 52 presses against the middle part of the lower end of the shock-absorbing reverse thrust arm 51, and the lower end of the spring 52 presses against the machine base 1; a pivot seat 53 is arranged on the upper end surface of the front end of the shock-absorbing reverse thrust arm 51, and a pivot groove 531 with an upward opening is arranged on the upper end of the pivot seat 53, and a pivot shaft 12 is arranged on the machine base 1, and the pivot groove 531 of the pivot seat 53 is sleeved with the pivot shaft 12 under the elastic force of the spring 52, and serves as a fulcrum for the up and down swing of the shock-absorbing reverse thrust arm 51. When the present invention is working, when the stamping spindle 2 moves downward, the shock-absorbing reverse thrust arm 51 swings downward with the pivot groove 531 as the fulcrum, that is, the end point of the shock-absorbing reverse thrust arm 51 hinged to the stamping spindle 2 swings downward. At this time, the spring 52 will be compressed. The reaction force generated during the compression of the spring 52 has a buffering and shock-absorbing effect on the stamping spindle 2 when it moves downward, which can reduce the vibration of the machine without generating a large noise, and can protect the stamping spindle to a certain extent and ensure the stamping quality of the stamping spindle; subsequently, when the stamping spindle 2 is reset and moves upward, the spring 52 is released from the compressed state and generates an upward reaction force, which pushes the stamping spindle 2 to assist the stamping spindle 2 to move upward, thereby reducing the motor load and achieving the purpose of saving labor and electricity, making the present invention highly competitive in the market.

[0044] The rear end of the shock-absorbing reverse thrust arm 51 is formed with a fork portion 511 in a semi-square frame shape. The fork portion 511 is sleeved on the outer periphery of the upper end of the stamping spindle 2 and is hinged by a hinge 54, and its assembly structure is stable.

[0045] The hinge 54 is provided with a second oil passage 541 for the flow of lubricating oil at the periphery thereof, and the second oil passage 541 includes a second annular oil groove 501 provided at the periphery of the hinge 54, a third annular oil groove 502 provided at the end of the hinge 54, and a second connecting hole 503 formed inside the hinge 54 and connecting the second annular oil groove 501 and the third annular oil groove 502. The hinge 54 is provided with the second oil passage 541 for the flow of lubricating oil, which is used to ensure the smoothness of the hinge, thereby saving the use of conventional oil pipes, that is, reducing parts, and avoiding the cumbersome installation and maintenance of the oil pipes.

[0046] A strip oil storage groove 532 is arranged at the bottom of the pivot groove 531 in the pivot seat 53, and a third connecting hole 533 penetrating the bottom surface of the pivot seat 53 is also arranged at the bottom of the strip oil storage groove 532, so as to ensure that the pivot groove 531 and the pivot 12 are smoothly connected at all times, thereby saving the use of conventional oil pipes, reducing parts and components, and avoiding the tedious installation and maintenance of the oil pipes.

[0047] An oil plate 55 is installed between the upper end surface of the front end of the shock-absorbing reverse thrust arm 51 and the pivot seat 53, and the upper end surface of the oil plate 55 is provided with a plurality of interconnected first oil storage grooves 551, and the side of the oil plate 55 is provided with oil filling holes 552. The oil plate 55 is also provided with a first connecting hole 553 that passes through the first oil storage groove 551 and the oil filling holes 552; the lower end surface of the pivot seat 53 covers the upper end of the first oil storage groove 551, so that the first oil storage groove 551 is connected to the third connecting hole 533.

[0048] A groove 512 is provided in the middle of the lower end of the shock-absorbing reverse thrust arm 51, and the upper end of the spring 52 is placed in the groove 512, so as to ensure the stability of the assembly structure.

[0049] To sum up, the present invention adds a multi-link module 4, which makes the travel between the eccentric shaft module 3 and the stamping spindle 2 longer, so that the linked lift seat 41 cooperates with the connecting rod 42 to drive the stamping spindle 2 to perform stable reciprocating motion in the vertical direction (i.e., straight up and down motion) during the up and down swinging process, and the stamping spindle 2 will not be offset, which can achieve the effect of saving labor and electricity, and can ensure the stamping quality. At the same time, it will not cause wear of the stamping spindle 2, thereby ensuring the service life of the product; in addition, since the front end of the linked lift seat 41 is hinged to the lower end of the eccentric shaft module 3, the rear end of the linked lift seat 41 is hinged to the machine base 1, and the middle part of the lower end of the linked lift seat 41 is hinged to the connecting rod 42, it is subjected to force at three points, so that the reverse force generated by the later operation of the stamping spindle 2 will not directly act on the eccentric shaft module 3, thereby extending the service life of the eccentric shaft module 3. Due to the addition of the multi-link module 4, no matter the speed of the eccentric shaft module 3 is high or low, it will not affect the punching force of the punching spindle 2, that is, the punching force of the punching spindle 2 is the same when the speed is slow or fast, thereby ensuring the punching quality. In addition, due to the multi-link module 4, the overall gap of the entire structure of the present invention is small, the degree of wedging is high, and the punching product is more stable and of better quality.

[0050] When the stamping shock-absorbing reverse thrust mechanism is working, when the stamping spindle 2 moves downward by stamping, the shock-absorbing reverse thrust arm 51 swings downward with the pivot groove 531 as the fulcrum, that is, the end point of the shock-absorbing reverse thrust arm 51 hinged to the stamping spindle 2 swings downward, and at this time, the spring 52 will be compressed, and the reaction force generated during the compression of the spring 52 will produce a buffering and shock-absorbing effect on the stamping spindle 2 when it moves downward by stamping, which can reduce the vibration of the machine without generating a large noise, and can protect the stamping spindle to a certain extent and ensure the stamping quality of the stamping spindle; subsequently, when the stamping spindle 2 is reset and moves upward, the spring 52 is released from the compressed state and generates an upward reaction force, and the reaction force pushes the stamping spindle 2 to assist the stamping spindle 2 to move upward, thereby reducing the motor load and achieving the purpose of saving labor and electricity, making the present invention highly competitive in the market.

[0051] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. All equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A punching device for a punching machine, comprising a punching spindle (2) mounted on a machine base (1) and an eccentric shaft module (3) for driving the punching spindle (2) to slide up and down, characterized in that: A multi-link module (4) is also connected between the eccentric shaft module (3) and the punching spindle (2), and the multi-link module (4) includes a linkage seat (41) and a connecting rod (42) hinged to the middle of the lower end of the linkage seat (41) and distributed in a vertical state, the lower end of the connecting rod (42) is hinged to the upper end of the punching spindle (2), the front end of the linkage seat (41) is hinged to the lower end of the eccentric shaft module (3), and the rear end of the linkage seat (41) is hinged to the machine base (1), so that the eccentric shaft module (3) drives the linkage seat (41) to swing up and down, and the linkage seat (41) cooperates with the connecting rod (42) to drive the punching spindle (2) to reciprocate in the vertical direction during the up and down swinging process; A stamping shock-absorbing reverse thrust mechanism (5) is also provided between the stamping main shaft (2) and the machine base (1), and the stamping shock-absorbing reverse thrust mechanism (5) comprises: a shock-absorbing reverse thrust arm (51) and a spring (52) mounted in cooperation with the shock-absorbing reverse thrust arm (51); the rear end of the shock-absorbing reverse thrust arm (51) is hinged to the stamping main shaft (2) and swings up and down as the stamping main shaft (2) slides up and down; the upper end of the spring (52) presses against the middle part of the lower end of the shock-absorbing reverse thrust arm (51); The lower end of the spring (52) is pressed against the machine base (1); the upper end surface of the front end of the shock-absorbing reverse thrust arm (51) is provided with a pivot seat (53), and the upper end of the pivot seat (53) is provided with a pivot groove (531) with an opening facing upwards; a pivot shaft (12) is provided on the machine base (1); the pivot groove (531) of the pivot seat (53) is sleeved with the pivot shaft (12) under the elastic force of the spring (52) and serves as a fulcrum for the shock-absorbing reverse thrust arm (51) to swing up and down; The punching spindle (2) comprises a spindle core (21) and a spindle seat (22) fixed to the periphery of the spindle core (21); the spindle seat (22) is inserted into an axial hole (11) provided in the machine base (1); the upper end of the spindle core (21) is hingedly connected to the lower end of the connecting rod (42); a strip-shaped oil storage groove (532) is provided at the bottom of the pivot groove (531) in the pivot seat (53); the ...). 2) a third connecting hole (533) penetrating the bottom surface of the pivot seat (53) is also provided at the bottom; a groove body (512) is provided at the middle of the lower end of the shock-absorbing reverse thrust arm (51), and the upper end of the spring (52) is placed in the groove body (512); a fork portion (511) in the shape of a semi-square frame is formed at the rear end of the shock-absorbing reverse thrust arm (51), and the fork portion (511) is sleeved on the outer periphery of the upper end of the stamping main shaft (2) and is hinged through a hinge (54).

2. The punching device for punching equipment according to claim 1, characterized in that: The eccentric shaft module (3) comprises an eccentric shaft (31) rotatably mounted on the machine base (1) and a crank (32) sleeved on the eccentric shaft (31) and distributed in a vertical state, wherein the lower end of the crank (32) is hinged to the front end of the linked tilting seat (41).

3. The punching device for punching equipment according to claim 2, characterized in that: The crank (32) has a circular hole (320) at its upper end; the eccentric shaft (31) has an eccentric convex portion (311), and the eccentric convex portion (311) is placed in the circular hole (320); the crank (32) comprises an upper ring seat (321) and a crank body (322) which are locked together by screws, the upper ring seat (321) has a first semicircular groove formed at its lower end, and the crank body (322) has a second semicircular groove formed at its upper end, and the second semicircular groove is connected to the first semicircular groove to form the circular hole (320).

4. The punching device for punching equipment according to claim 2, characterized in that: The interlocking rocker seat (41) comprises a first interlocking rocker plate (411) and a second interlocking rocker plate (412), and a first hinge shaft (413), a second hinge shaft (414), and a third hinge shaft (415) which are rotatably arranged between the first interlocking rocker plate (411) and the second interlocking rocker plate (412), wherein a gap is formed between the first interlocking rocker plate (411) and the second interlocking rocker plate (412), wherein the first hinge shaft (413) is connected to the lower end of the crank (32), wherein the second hinge shaft (414) is connected to the upper end of the connecting rod (42), and wherein the third hinge shaft (415) is connected to the machine seat (1); bearings (416) are arranged at both ends of the first interlocking rocker plate (413), the second hinge shaft (414), and the third hinge shaft (415), and wherein the bearings (416) are fixed in the first interlocking rocker plate (411) and the second interlocking rocker plate (412).

5. The punching device for punching equipment according to any one of claims 1 to 4, characterized in that: A stamping connection plate (23) is fixed to the lower end of the stamping main shaft (2), and a plurality of guide rods (231) are arranged at the rear end of the stamping connection plate (23), and the guide rods (231) penetrate into guide holes arranged in the machine base (1).

6. The punching device for punching equipment according to any one of claims 1 to 4, characterized in that: The hinge (54) is provided with a second oil passage (541) for lubricating oil to flow around the hinge (54), and the second oil passage (541) includes a second annular oil groove (501) provided around the hinge (54), a third annular oil groove (502) provided at the end of the hinge (54), and a second connecting hole (503) formed inside the hinge (54) and connecting the second annular oil groove (501) and the third annular oil groove (502).

7. The punching device for punching equipment according to any one of claims 1 to 4, characterized in that: An oil plate (55) is installed between the upper end surface of the front end of the shock-absorbing reverse thrust arm (51) and the pivot seat (53); the upper end surface of the oil plate (55) is provided with a plurality of interconnected first oil storage grooves (551); the side surface of the oil plate (55) is provided with oil injection holes (552); and the oil plate (55) is further provided with a first connecting hole (553) penetrating the first oil storage groove (551) and the oil injection holes (552); the lower end surface of the pivot seat (53) covers the upper end of the first oil storage groove (551).

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