Shock absorber for punching machine

Abstract

The invention relates to the technical field of punching machines, in particular to a shock absorber for a punching machine. The punching machine body comprises a base, an upper die and a lower die. The upper mold is fixedly connected to one side of the outer wall of the base through a connecting device; a damping shell is fixedly connected to the top end of the outer wall of the base; the outer side wall of the lower mold is slidably connected to the inner side wall of the damping shell. The lower die is subjected to impact force to drive a damping block to move, the damping block drives a second spring to contract to absorb force, when the second spring prepares to rebound, due to the fact that the lower die is arranged on the top, the second spring downwards rebounds to extrude a round block, the round block drives a square block to move downwards, and rebound of the second spring is absorbed by the square block and a first spring; and a square block moves downwards to drive a connecting block to move downwards, so that the connecting block extrudes a pair of vibration absorption blocks and a third spring, the third spring shrinks, vertical force is converted into transverse force, and the transverse force is absorbed and resolved, and the machining yield of the metal materials is increased.

Description

Technical Field

[0001] The invention relates to the technical field of punching machines, in particular to a shock absorber used for a punching machine. Background Art

[0002] A punch press is a piece of metal sheet processing equipment that completes the automated stamping production of metal materials through the reciprocating motion of the upper and lower dies. Because it uses pressure to form metal materials into the desired shape and size, it will generate vibrations during the processing. Therefore, it is necessary to use a punch press shock absorber to reduce the vibrations generated during the production and processing to protect the foundation and the equipment itself.

[0003] In the prior art, most punching machines only use a simple shock-absorbing structure, so that when the punching machine produces impact when processing metal materials, the shock-absorbing structure will rebound repeatedly, and cannot effectively reduce the vibration caused by the impact. As a result, when the punching machine processes metal materials, the repeated rebound of the shock-absorbing structure will cause the punching machine to continuously generate vibration force or move, making it easy to be affected by vibration when processing metal materials, thereby greatly increasing the probability of defects or non-compliance with processing standards during the processing of metal materials, thereby reducing the processing yield of metal materials. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that most punching machines only use a simple shock-absorbing structure, so that when the punching machine produces impact when processing metal materials, the shock-absorbing structure will rebound repeatedly, and cannot effectively reduce the vibration caused by the impact. As a result, when the punching machine processes metal materials, the repeated rebound of the shock-absorbing structure will cause the punching machine to continuously generate vibration force or move, making it easy to be affected by vibration when processing metal materials, thereby greatly increasing the probability of defects or non-compliance with processing standards during the processing of metal materials, thereby reducing the processing yield of metal materials. A shock absorber for a punching machine is proposed.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A shock absorber for a punch press, comprising a punch press body; the punch press body comprises a base, an upper die and a lower die; the upper die is fixedly connected to one side of the outer wall of the base through a connecting device; a shock absorbing shell is fixedly connected to the top end of the outer wall of the base; the outer wall of the lower die is slidably connected to the inner wall of the shock absorbing shell; a square shell is fixedly connected to the center of the bottom end of the inner wall of the shock absorbing shell; a square block is fixedly connected to the bottom end of the inner wall of the square shell through a first spring; the outer wall of the square block is slidably connected to the inner wall of the square shell; a circular groove is provided at the top end of the outer wall of the square block; a circular block is provided on the inner wall of the circular groove; the outer wall of the circular block is connected to the inner wall of the square shell through a second spring The spring is fixed with a shock-absorbing block, and the outer side wall of the shock-absorbing block is slidably connected to the inner side wall of the circular groove, and the top end of the outer wall of the shock-absorbing block is fixed to the bottom end of the outer wall of the lower mold; the outer wall of the square shell is provided with a first through groove on opposite sides; the bottom end of the inner wall of the shock-absorbing shell is fixed with a pair of square plates; the outer walls of a pair of square plates are fixed with vibration-absorbing blocks on opposite sides through a third spring, and the outer side walls of a pair of vibration-absorbing blocks are respectively slidably connected to the inner side walls of a pair of first through grooves, and the pair of vibration-absorbing blocks are in the shape of a right-angled trapezoid; the bottom end of the outer wall of the square block is fixed with a pair of connecting blocks, and the bottom ends of the outer walls of the pair of connecting blocks are respectively slidably connected to the inclined surface of one side of the outer wall of the pair of vibration-absorbing blocks.

[0007] As a preferred embodiment of the present invention, the outer wall of the circular block is sealingly fixed to the inner wall of the circular groove; a sealed space is formed between the circular groove and the circular block; a piston rod is fixed to the bottom end of the outer wall of the shock-absorbing block, and the bottom end of the outer wall of the piston rod passes through the circular block, and the piston rod and the circular block are sealingly and slidingly connected; a resistance block is fixed to the bottom end of the outer wall of the piston rod; a rubber ring is fixed to the outer wall of the resistance block, and the rubber ring matches the inner wall of the circular groove.

[0008] As a preferred embodiment of the present invention, a pair of square rods are fixedly connected to one side of the outer wall of the square plate, and the vibration-absorbing block is located between the pair of square rods; a group of first square grooves are opened on opposite sides of the outer walls of the pair of square rods; friction blocks are fixedly connected to opposite sides of the inner walls of the two groups of the first square grooves through fourth springs, and the two groups of friction blocks are matched with the vibration-absorbing block, and the outer side walls of the two groups of friction blocks are respectively slidably connected to the inner side walls of the two groups of the first square grooves; a group of anti-sliding blocks are fixedly connected to opposite sides of the outer walls of the two groups of friction blocks.

[0009] As a preferred embodiment of the present invention, sliding grooves are provided on opposite sides of the inner wall of the shock-absorbing shell; a pair of inner side walls of the sliding grooves are provided with linkage blocks; a pair of extrusion blocks are fixedly connected with extrusion blocks on opposite sides of the outer walls through a fifth spring, and the pair of extrusion blocks are matched with the lower mold; a pair of guide rods are fixedly connected with opposite sides of the outer walls of the linkage blocks; a pair of guide grooves are provided on one side of the outer walls of the pair of extrusion blocks, and the two pairs of guide grooves are matched with the two pairs of guide rods respectively; a baffle is provided on the top end of the outer wall of the shock-absorbing shell, and the pair of baffles are matched with the pair of sliding grooves respectively.

[0010] As a preferred embodiment of the present invention, a circular rod is fixedly connected to one end of the outer wall of the vibration absorbing block, and one end of the outer wall of the circular rod passes through the square plate; a thrust block is fixedly connected to one end of the outer wall of the circular rod passing through the square plate, and the thrust block is in the shape of a right-angled trapezoid; the inner side walls of a pair of sliding grooves are both slidably connected to the linkage plate, and the linkage plate is in the shape of an isosceles trapezoid, and a pair of linkage plates are respectively matched with a pair of thrust blocks; the outer side walls of a pair of linkage blocks are respectively slidably connected to the inner side walls of a pair of sliding grooves; a pair of linkage blocks are respectively matched with a pair of linkage plates.

[0011] As a preferred embodiment of the present invention, a group of auxiliary grooves are provided on one side of the outer wall of the extrusion block, and the group of auxiliary grooves are distributed in a cross shape; one side of the inner wall of a group of the auxiliary grooves is fixed with an auxiliary rod through a sixth spring, and the outer side walls of a group of auxiliary rods are respectively slidably connected to the inner side walls of a pair of auxiliary grooves; the two groups of auxiliary rods are matched with the lower mold, and the outer walls of the two groups of auxiliary rods are provided with anti-slip patterns on the opposite ends.

[0012] As a preferred embodiment of the present invention, moving blocks are fixed on opposite sides of the outer wall of the vibration absorbing block, and opposite ends of the outer walls of a pair of moving blocks are semicircular; clamping plates are fixed on opposite sides of the inner wall of the shock absorbing shell through the seventh spring, and the two pairs of clamping plates are matched with the two pairs of moving blocks respectively; one side of the outer wall of the clamping plate is wavy, and one side of the wavy outer wall of the clamping plate matches one semicircular end of the moving block; the bottom end of the outer wall of the clamping plate is slidably connected to the bottom end of the inner wall of the shock absorbing shell; dampers are provided at the first spring, the second spring, the third spring, the fourth spring, the fifth spring, the sixth spring and the seventh spring.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The downward movement of the shock-absorbing block will drive the piston rod to move downward, and the downward movement of the piston rod will drive the resistance block and the rubber ring to move. Because the resistance block moves in a sealed space, it is subject to air resistance and moves slowly. The sealed space can also be filled with liquid, so that the resistance of the shock-absorbing block increases when it moves downward, thereby effectively reducing the distance moved by the lower mold when it is subjected to impact force. Due to the distance moved by the lower mold when it is subjected to impact force, the rebound effect will also be reduced. The increase in resistance makes the lower mold move slowly, thereby increasing the stability of the device during operation and making the metal material more stable during processing.

[0015] 2. When the lower mold is moved downward by the impact force, the fifth spring on the linkage block will squeeze the lower mold through a pair of extrusion blocks through the elastic force, so that when the lower mold is moved downward by the impact force, it will move slowly due to the extrusion force and reduce the moving distance, so that the lower mold moves slowly and the moving distance is reduced to reduce the impact of the rebound force, and when the lower mold is vibrated, the vibration force will be transmitted to the fifth spring through the extrusion block, so that the fifth spring absorbs and resolves the vibration force, so that the various mechanisms of the device cooperate with each other, thereby effectively reducing the rebound force and vibration force of the lower mold, and reducing the effect of the external force on the metal material on the lower mold during processing, thereby improving the processing yield of the metal material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0017] Figure 1 It is the main structure diagram of the present invention;

[0018] Figure 2 It is an exploded structural diagram of the shock-absorbing shell and the lower mold of the present invention;

[0019] Figure 3 It is an exploded structural diagram of the lower mold and the baffle of the present invention;

[0020] Figure 4 It is a partial structural diagram of the present invention;

[0021] Figure 5 It is an exploded structural diagram of the square shell, square block, round block and shock-absorbing block of the present invention;

[0022] Figure 6 It is a structural diagram of the vibration absorbing block, the square rod, the linkage plate, the extrusion block and the clamping plate of the present invention;

[0023] Figure 7 It is an exploded structural diagram of a square plate and a square rod of the present invention;

[0024] Figure 8 It is a structural diagram of the friction block and the anti-sliding block of the present invention;

[0025] Fig. 9 It is a structural diagram of the vibration absorbing block, the round rod, the thrust block, the linkage plate and the linkage block of the present invention;

[0026] Fig.10 It is an exploded structural diagram of the extrusion block and the auxiliary rod of the present invention;

[0027] In the figure: 1, punch body; 2, base; 3, upper mold; 4, lower mold; 5, connecting device; 6, shock-absorbing shell; 7, square shell; 8, first spring; 9, square block; 10, circular groove; 11, circular block; 12, second spring; 13, shock-absorbing block; 14, first through groove; 15, square plate; 16, third spring; 17, vibration absorbing block; 18, connecting block; 19, piston rod; 20, resistance block; 21, rubber ring; 22, Square rod; 23, first square groove; 24, fourth spring; 25, friction block; 26, anti-sliding block; 27, sliding groove; 28, linkage block; 29, fifth spring; 30, extrusion block; 31, guide rod; 32, guide groove; 33, baffle; 34, round rod; 35, thrust block; 36, linkage plate; 37, auxiliary groove; 38, sixth spring; 39, auxiliary rod; 40, moving block; 41, seventh spring; 42, clamping plate. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] See also Figure 1-Figure 10As shown, a shock absorber for a punch press comprises a punch press body 1; the punch press body 1 comprises a base 2, an upper die 3, and a lower die 4; the upper die 3 is fixedly connected to one side of the outer wall of the base 2 through a connecting device 5; a shock absorbing shell 6 is fixedly connected to the top of the outer wall of the base 2; the outer wall of the lower die 4 is slidably connected to the inner wall of the shock absorbing shell 6; a square shell 7 is fixedly connected to the center of the bottom end of the inner wall of the shock absorbing shell 6; a square block 9 is fixedly connected to the bottom end of the inner wall of the square shell 7 through a first spring 8; the outer wall of the square block 9 is slidably connected to the inner wall of the square shell 7; a circular groove 10 is provided at the top of the outer wall of the square block 9; a circular block 11 is provided on the inner wall of the circular groove 10; the outer wall top of the circular block 11 is fixedly connected to the inner wall of the square shell 7 through a second spring 12 There is a shock-absorbing block 13, and the outer wall of the shock-absorbing block 13 is slidably connected to the inner wall of the circular groove 10, and the top of the outer wall of the shock-absorbing block 13 is fixed to the bottom end of the outer wall of the lower mold 4; the first through grooves 14 are opened on the opposite sides of the outer wall of the square shell 7; a pair of square plates 15 are fixed to the bottom end of the inner wall of the shock-absorbing shell 6; the opposite sides of the outer walls of the pair of square plates 15 are fixed with vibration-absorbing blocks 17 through third springs 16, and the outer walls of the pair of vibration-absorbing blocks 17 are respectively slidably connected to the inner walls of the pair of first through grooves 14, and the pair of vibration-absorbing blocks 17 are in the shape of a right-angled trapezoid; a pair of connecting blocks 18 are fixed to the bottom end of the outer wall of the square block 9, and the bottom ends of the outer walls of the pair of connecting blocks 18 are respectively slidably connected to one side of the outer wall of the pair of vibration-absorbing blocks 17 On the inclined surface, when the upper die 3 on the punch body 1 processes the metal material on the lower die 4, the lower die 4 will move downward due to the impact force, driving the shock absorbing block 13 to move, so that the shock absorbing block 13 drives the second spring 12 to contract and absorb the force, and when the shock absorbing block 13 and the second spring 12 move, they will drive the square block 9 to move, so that the square block 9 drives the first spring 8 to contract, and when the second spring 12 is ready to rebound, because there is the lower die 4 on the top, the second spring 12 will rebound downward when it rebounds, thereby squeezing the circular block 11, so that the circular block 11 drives the square block 9 to move downward, so that the rebound effect of the second spring 12 is absorbed by the square block 9 and the first spring 8, thereby reducing the rebound effect of the second spring 12 The first spring 8 and the second spring 12 cooperate with each other to absorb and resolve the impact force, and when the square block 9 moves downward, the square block 9 will drive the connecting block 18 to move downward, so that the downward movement of the connecting block 18 squeezes a pair of vibration absorbing blocks 17, and the vibration absorbing blocks 17 drive the third spring 16 to contract, thereby converting the vertical impact force into a lateral impact force for absorption and resolution, so that the device absorbs, resolves and converts the impact force through the first spring 8, the second spring 12 and the third spring 16, thereby effectively reducing the rebound effect on the lower mold 4, so that when the device processes the metal material, the probability of defects and non-compliance with the processing standards of the metal material is effectively reduced, thereby increasing the processing yield of the metal material.

[0031] A pair of square rods 22 are fixedly connected to one side of the outer wall of the square plate 15, and the vibration absorbing block 17 is located between the pair of square rods 22; a group of first square grooves 23 are provided on the opposite sides of the outer walls of the pair of square rods 22; a friction block 25 is fixedly connected to the opposite sides of the inner walls of the two groups of first square grooves 23 through the fourth spring 24, and the two groups of friction blocks 25 are matched with the vibration absorbing block 17, and the outer side walls of the two groups of friction blocks 25 are respectively slidably connected to the inner side walls of the two groups of first square grooves 23; a group of anti-sliding blocks 26 are fixedly connected to the opposite sides of the outer walls of the two groups of friction blocks 25. When the vibration absorbing block 17 moves to drive the third spring 16 to contract, because the two groups of friction blocks 25 are matched with the vibration absorbing block 17, the movement of the vibration absorbing block 17 will be squeezed and blocked by the two groups of friction blocks 25, so that the vibration absorbing block 17 will contact the friction block 25 when it moves, and thus be blocked by the friction block 25, and when the vibration absorbing block 17 continues to move, due to the friction block 25 The shape of the friction block 25 causes the movement of the friction block 25 to cause the fourth spring 24 to contract. At this time, the fourth spring 24 will also absorb a part of the impact force, thereby further reducing the impact of the impact force on the lower mold 4. When the two groups of friction blocks 25 move to the top of the vibration absorbing block 17 due to the movement of the vibration absorbing block 17, the two groups of friction blocks 25 will cooperate with each other to squeeze the vibration absorbing block 17. Because a group of anti-sliding blocks 26 are fixedly connected to the opposite sides of the outer walls of the two groups of friction blocks 25, when the friction blocks 25 squeeze the vibration absorbing block 17, the friction force is increased, so that when the vibration absorbing block 17 rebounds, its rebound force is reduced and absorbed due to being squeezed, so that the device not only absorbs and resolves the impact force and rebound force through each spring, but also reduces the rebound force and impact force to the greatest extent through the friction force and squeezing force, so that the device is more stable and convenient when processing metal materials.

[0032] The outer wall of the circular block 11 is sealed and fixedly connected to the inner wall of the circular groove 10; a sealed space is formed between the circular groove 10 and the circular block 11; a piston rod 19 is fixedly connected to the bottom end of the outer wall of the shock-absorbing block 13, and the bottom end of the outer wall of the piston rod 19 passes through the circular block 11, and the piston rod 19 is sealed and slidably connected to the circular block 11; a resistance block 20 is fixedly connected to the bottom end of the outer wall of the piston rod 19; a rubber ring 21 is fixedly connected to the outer wall of the resistance block 20, and the rubber ring 21 matches the inner wall of the circular groove 10. When the shock-absorbing block 13 moves downward to absorb and resolve the impact force, the downward movement of the shock-absorbing block 13 will drive the piston rod 19 to move downward, so that the piston rod The downward movement of 19 drives the resistance block 20 and the rubber ring 21 to move. Since the resistance block 20 moves in the sealed space, its movement is subject to air resistance, so that it moves relatively slowly. The sealed space can also be filled with liquid, so that the resistance of the shock-absorbing block 13 increases when it moves downward, thereby effectively reducing the distance moved by the lower mold 4 when it is subjected to impact force. Due to the distance moved by the lower mold 4 when it is subjected to impact force, the rebound effect will also be reduced, and the increase in resistance makes the lower mold 4 move relatively slowly, thereby increasing the stability of the device during operation, making the metal material more stable during processing.

[0033] The opposite sides of the outer wall of the vibration absorbing block 17 are fixed with moving blocks 40, and the opposite ends of the outer walls of a pair of moving blocks 40 are semicircular; the opposite sides of the inner wall of the shock absorbing shell 6 are fixed with clamping plates 42 through the seventh spring 41, and the two pairs of clamping plates 42 are matched with the two pairs of moving blocks 40 respectively; one side of the outer wall of the clamping plate 42 is wavy, and one side of the wavy outer wall of the clamping plate 42 matches one end of the semicircular shape of the moving block 40; the bottom end of the outer wall of the clamping plate 42 is slidably connected to the bottom end of the inner wall of the shock absorbing shell 6; the first spring 8 and the second spring 12 and the third spring 16 and the fourth spring 24 and the fifth spring 29 and the sixth spring 38 and the seventh spring 41 are all provided with dampers, and when the vibration absorbing block 17 moves, the movement of the vibration absorbing block 17 will drive the movement of the pair of moving blocks 40, and the movement of the moving block 40 will cause the moving block 40 to squeeze the clamping plate 42, so that the clamping plate 42 cooperates with the friction block 25, so that the clamping plate 42 and the friction block 25 squeezes and fixes the vibration absorbing block 17 from all sides, thereby further increasing the difficulty of moving the vibration absorbing block 17, so that after the vibration absorbing block 17 absorbs and transforms the impact force, the moving distance of the vibration absorbing block 17 will be reduced by the friction block 25 and the clamping plate 42, thereby shrinking the rebound force of the vibration absorbing block 17, and because one side of the wavy outer wall of the clamping plate 42 matches one end of the semicircular shape of the moving block 40, the clamping plate 42 is squeezed when the moving block 40 moves, causing the clamping plate 42 to shake due to one side of the wavy outer wall, so that the seventh spring 41 also absorbs the impact force and the rebound force, and the seventh spring 41 rebounds back and forth repeatedly. Because the rebound of the seventh spring 41 will not affect the lower mold 4, the device can not only effectively reduce the rebound force and vibration block of the lower mold 4, but also effectively reduce and transform the rebound force and vibration force received by each spring, thereby making the device more practical.

[0034] Sliding grooves 27 are provided on opposite sides of the inner wall of the shock-absorbing shell 6; a pair of linkage blocks 28 are provided on the inner side walls of the sliding grooves 27; an extrusion block 30 is fixedly connected to the opposite side of the outer wall of the pair of linkage blocks 28 through a fifth spring 29, and the pair of extrusion blocks 30 are matched with the lower mold 4; a pair of guide rods 31 are fixedly connected to the opposite side of the outer wall of the pair of linkage blocks 28; a pair of guide grooves 32 are provided on one side of the outer wall of the pair of extrusion blocks 30, and the two pairs of guide grooves 32 are matched with the two pairs of guide rods 31 respectively; a baffle 33 is provided on the top of the outer wall of the shock-absorbing shell 6, and the pair of baffles 33 are matched with the pair of sliding grooves 27 respectively. When the lower mold 4 moves downward under the impact force, the fifth spring 29 on the linkage block 28 will squeeze the lower mold 4 through the elastic force of the pair of extrusion blocks 30, so that the lower mold 4 When it moves downward under the impact force, it will move slowly due to the extrusion force and reduce the moving distance, so that the lower mold 4 moves slowly and the moving distance is reduced to reduce the influence of the rebound force, and when the lower mold 4 is vibrated, the vibration force will be transmitted to the fifth spring 29 through the extrusion block 30, so that the fifth spring 29 absorbs and resolves the vibration force, so that the various mechanisms of the device cooperate with each other, thereby effectively reducing the rebound force and vibration force on the lower mold 4, and reducing the effect of the external force on the metal material on the lower mold 4 during processing, thereby improving the processing yield of the metal material, and the guide rod 31 will limit the extrusion block 30, so that the extrusion block 30 will not move during extrusion, causing the fifth spring 29 to be damaged or deformed, so that the operation of the device is safer and more stable.

[0035] A circular rod 34 is fixedly connected to one end of the outer wall of the vibration absorbing block 17, and one end of the outer wall of the circular rod 34 passes through the square plate 15; a thrust block 35 is fixedly connected to one end of the outer wall of the circular rod 34 passing through the square plate 15, and the thrust block 35 is in the shape of a right-angled trapezoid; the inner side walls of a pair of sliding grooves 27 are slidably connected to the linkage plate 36, and the linkage plate 36 is in the shape of an isosceles trapezoid, and the pair of linkage plates 36 are respectively matched with a pair of thrust blocks 35; the outer side walls of a pair of linkage blocks 28 are respectively slidably connected to the inner side walls of a pair of sliding grooves 27; a pair of linkage blocks 28 are respectively matched with a pair of linkage plates 36, when the vibration absorbing block 17 is moved by impact force, the movement of the vibration absorbing block 17 will drive the circular rod 34 to move, and the movement of the circular rod 34 will drive the thrust block 35 to move, and due to the shape of the thrust block 35 and the linkage plate 36, the thrust block 35 moves. When the linkage plate 36 moves, it will drive the linkage plate 36 to move upward. When the linkage plate 36 moves upward, due to the shapes of the linkage plate 36 and the linkage block 28, and the outer side walls of a pair of linkage blocks 28 are respectively slidably connected to the inner side walls of a pair of sliding through grooves 27, the movement of the linkage plate 36 drives the linkage block 28 to move horizontally, and the lateral movement of the linkage block 28 will drive the fifth spring 29 and the extrusion block 30 to move. Because the extrusion block 30 is extruded on the lower mold 4, the movement of the linkage block 28 will cause the fifth spring 29 to contract, thereby increasing the elastic force of the fifth spring 29, increasing the extrusion force of the extrusion block 30, and making the movement of the lower mold 4 more difficult, thereby effectively reducing the moving distance of the lower mold 4, and reducing the strength of the rebound force on the lower mold 4, so that the device is more stable during operation and the operation effect is improved.

[0036] Embodiment 2:

[0037] See also Figure 6 and Fig.10As shown, a group of auxiliary grooves 37 are provided on one side of the outer wall of the extrusion block 30, and the group of auxiliary grooves 37 are distributed in a cross shape; an auxiliary rod 39 is fixedly connected to one side of the inner wall of the group of auxiliary grooves 37 through a sixth spring 38, and the outer side walls of a group of auxiliary rods 39 are slidably connected to the inner side walls of a pair of auxiliary grooves 37 respectively; the two groups of auxiliary rods 39 are matched with the lower mold 4, and the outer sides of the two groups of auxiliary rods 39 are provided with anti-slip grooves at the opposite ends. When the extrusion block 30 extrude the lower mold 4, the group of auxiliary rods 39 on the extrusion block 30 will also extrude the lower mold 4 through the elastic force of the sixth spring 38, thereby further enhancing the extrusion force of the device on the lower mold 4, so that the distance moved by the lower mold 4 due to the impact force is further reduced. Less, thereby further reducing the influence of the rebound force on the lower mold 4, and through a group of auxiliary rods 39 distributed in a cross shape, a group of auxiliary rods 39 form a plurality of triangular fixed structures, so that a group of auxiliary rods 39 can be more stable when extruding the lower mold 4, and the sixth spring 38 can also absorb and convert the vibration force received by the lower mold 4, so that the impact forces received by each spring in the device can be converted and resolved to each other, so that the efficiency of resetting each spring is higher, so that the time for the next processing of the metal material by the device is reduced, so that the device can not only effectively absorb and convert the rebound force and impact force received by the lower mold 4, but also further improve the effect and efficiency of processing the metal material.

[0038] When the present invention is in use, when the upper die 3 on the punch body 1 processes the metal material on the lower die 4, the lower die 4 will move downward under the impact force, driving the shock absorbing block 13 to move, so that the shock absorbing block 13 drives the second spring 12 to contract and absorb the force, and when the shock absorbing block 13 and the second spring 12 move, they will drive the square block 9 to move, so that the square block 9 drives the first spring 8 to contract, and when the second spring 12 is ready to rebound, because there is the lower die 4 on the top, the second spring 12 will rebound downward when it rebounds, thereby squeezing the circular block 11, so that the circular block 11 drives the square block 9 to move downward, so that the rebound effect of the second spring 12 is absorbed by the square block 9 and the first spring 8, thereby reducing the rebound effect of the second spring 12, so that the first spring 8 and the second spring 12 The first spring 8, the second spring 12 and the third spring 16 cooperate with each other to absorb and resolve the impact force, and when the square block 9 moves downward, the square block 9 will drive the connecting block 18 to move downward, so that the downward movement of the connecting block 18 squeezes a pair of vibration absorbing blocks 17, so that the vibration absorbing block 17 drives the third spring 16 to contract, thereby converting the vertical impact force into a lateral impact force for absorption and resolution, so that the device absorbs, resolves and converts the impact force through the first spring 8, the second spring 12 and the third spring 16, thereby effectively reducing the rebound effect on the lower mold 4, so that when the device processes the metal material, the probability of the metal material having defects and not meeting the processing standards is effectively reduced, thereby increasing the processing yield of the metal material, and when the vibration absorbing block 17 moves to drive the third spring 16 to contract, because the two groups of friction blocks 25 match the vibration absorbing block 17 The movement of the vibration absorbing block 17 will be squeezed and blocked by the two groups of friction blocks 25, so that the vibration absorbing block 17 will contact the friction block 25 when it moves, and thus be blocked by the friction block 25, and when the vibration absorbing block 17 continues to move, due to the shape of the friction block 25, the movement of the friction block 25 will cause the friction block 25 to drive the fourth spring 24 to contract. At this time, the fourth spring 24 will also absorb a part of the impact force, thereby further reducing the impact of the impact force on the lower mold 4, and when the two groups of friction blocks 25 move to the top of the vibration absorbing block 17 due to the movement of the vibration absorbing block 17, the two groups of friction blocks 25 will cooperate with each other to squeeze the vibration absorbing block 17, because a group of anti-sliding blocks 26 are fixedly connected to the opposite side of the outer walls of the two groups of friction blocks 25, so that when the friction block 25 squeezes the vibration absorbing block 17, the friction force is increased. Therefore, when the vibration absorbing block 17 rebounds, its rebound force will be reduced and absorbed due to being squeezed, so that the device not only absorbs and resolves the impact force and rebound force through the springs, but also reduces the rebound force and impact force to the greatest extent through the friction force and squeezing force, so that the device is more stable and convenient when processing metal materials, and when the vibration absorbing block 17 moves, the movement of the vibration absorbing block 17 will drive the movement of a pair of moving blocks 40, and the movement of the moving block 40 will cause the moving block 40 to squeeze the clamping plate 42, so that the clamping plate 42 cooperates with the friction block 25, so that the clamping plate 42 and the friction block 25 squeeze and fix the vibration absorbing block 17 from all sides, thereby further increasing the difficulty of moving the vibration absorbing block 17, so that after the vibration absorbing block 17 absorbs and transforms the impact force,The moving distance of the vibration absorbing block 17 will be reduced by the friction block 25 and the clamping plate 42, thereby shrinking the rebound force of the vibration absorbing block 17, and because one side of the wavy outer wall of the clamping plate 42 matches one end of the semicircular shape of the moving block 40, the clamping plate 42 is squeezed when the moving block 40 moves, causing the clamping plate 42 to vibrate due to one side of the wavy outer wall, so that the seventh spring 41 also absorbs the impact force and the rebound force, and the seventh spring 41 rebounds back and forth repeatedly. Because the rebound of the seventh spring 41 will not affect the lower mold 4, the device can not only effectively reduce the rebound force and vibration block of the lower mold 4, but also effectively reduce and transform the rebound force and vibration force of each spring, thereby making the device more practical, and when When the shock absorbing block 13 moves downward to absorb and resolve the impact force, the downward movement of the shock absorbing block 13 will drive the piston rod 19 to move downward, and the downward movement of the piston rod 19 will drive the resistance block 20 and the rubber ring 21 to move. Because the resistance block 20 moves in the sealed space, its movement is subject to air resistance, so that it moves relatively slowly, and the sealed space can also be filled with liquid, so that the resistance of the shock absorbing block 13 increases when it moves downward, thereby effectively reducing the distance moved by the lower mold 4 when it is subjected to the impact force. Due to the distance moved by the lower mold 4 when it is subjected to the impact force, the effect of the rebound will also be reduced, and the increase in resistance will make the lower mold 4 move relatively slowly, thereby increasing the stability of the device during operation, making the metal material more stable during processing, and when the lower mold 4 is subjected to the impact When the force moves downward, the fifth spring 29 on the linkage block 28 will squeeze the lower mold 4 through the elastic force of a pair of extrusion blocks 30, so that when the lower mold 4 is subjected to the impact force and moves downward, it will move slowly due to the extrusion force and reduce the moving distance, so that the lower mold 4 moves slowly and the moving distance is reduced to reduce the influence of the rebound force, and when the lower mold 4 is vibrated, the vibration force will be transmitted to the fifth spring 29 through the extrusion block 30, so that the fifth spring 29 absorbs and resolves the vibration force, so that the various mechanisms of the device cooperate with each other, thereby effectively reducing the rebound force and vibration force on the lower mold 4, and reducing the effect of the external force on the metal material on the lower mold 4 during processing, thereby improving the processing yield of the metal material, and the guide rod 31 will limit the extrusion block 30 , so that the extrusion block 30 will not move during extrusion, causing the fifth spring 29 to be damaged or deformed, so that the operation of the device is safer and more stable, and when the vibration absorbing block 17 is moved by the impact force, the movement of the vibration absorbing block 17 will drive the circular rod 34 to move, and the movement of the circular rod 34 will drive the thrust block 35 to move. Due to the shape of the thrust block 35 and the linkage plate 36, the movement of the thrust block 35 will drive the linkage plate 36 to move upward. When the linkage plate 36 moves upward, due to the shape of the linkage plate 36 and the linkage block 28, and the outer side walls of a pair of linkage blocks 28 are respectively slidably connected to the inner side walls of a pair of sliding through grooves 27, the movement of the linkage plate 36 drives the linkage block 28 to move horizontally, and the lateral movement of the linkage block 28 will drive the fifth spring 29 and the extrusion block 30 to move.Because the extrusion block 30 is extruded on the lower mold 4, the movement of the linkage block 28 will cause the fifth spring 29 to contract, thereby increasing the elastic force of the fifth spring 29, increasing the extrusion force of the extrusion block 30, making the movement of the lower mold 4 more difficult, thereby effectively reducing the moving distance of the lower mold 4, and reducing the strength of the rebound force on the lower mold 4, so that the device is more stable during operation and the operation effect is improved. When the extrusion block 30 extrudes the lower mold 4, a group of auxiliary rods 39 on the extrusion block 30 will also squeeze the lower mold 4 through the elastic force of the sixth spring 38, thereby further increasing the extrusion force of the device on the lower mold 4, so that the distance moved by the lower mold 4 due to the impact force is further improved. The reduction of the impact of the rebound force on the lower mold 4 is further reduced, and a group of auxiliary rods 39 are distributed in a cross shape, so that a group of auxiliary rods 39 form a plurality of triangular fixed structures, so that a group of auxiliary rods 39 are more stable when extruding the lower mold 4, and the sixth spring 38 will also absorb and convert the vibration force on the lower mold 4, so that the impact force on each spring in the device can be converted and resolved to each other, so that the efficiency of the reset of each spring is higher, so that the time for the next processing of the metal material by the device is reduced, so that the device can not only effectively absorb and convert the rebound force and impact force on the lower mold 4, but also further improve the effect and efficiency of processing metal materials.

[0039] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A shock absorber for a punch press, comprising a punch press body (1); the punch press body (1) comprises a base (2), an upper die (3) and a lower die (4); the upper die (3) is fixedly connected to one side of the outer wall of the base (2) through a connecting device (5); characterized in that: A shock-absorbing shell (6) is fixedly connected to the top of the outer wall of the base (2); the outer wall of the lower mold (4) is slidably connected to the inner wall of the shock-absorbing shell (6); a square shell (7) is fixedly connected to the center of the bottom end of the inner wall of the shock-absorbing shell (6); a square block (9) is fixedly connected to the bottom end of the inner wall of the square shell (7) through a first spring (8); the outer wall of the square block (9) is slidably connected to the inner wall of the square shell (7); a circular groove (10) is provided at the top of the outer wall of the square block (9); a circular block (11) is provided on the inner wall of the circular groove (10); a shock-absorbing block (13) is fixedly connected to the top of the outer wall of the circular block (11) through a second spring (12), and the outer wall of the shock-absorbing block (13) is slidably connected to the inner wall of the circular groove (10). On the inner wall, the top end of the outer wall of the shock-absorbing block (13) is fixedly connected to the bottom end of the outer wall of the lower mold (4); the first through grooves (14) are opened on opposite sides of the outer wall of the square shell (7); a pair of square plates (15) are fixedly connected to the bottom end of the inner wall of the shock-absorbing shell (6); the outer walls of the pair of square plates (15) are fixedly connected to vibration-absorbing blocks (17) on opposite sides through third springs (16), and the outer side walls of the pair of vibration-absorbing blocks (17) are respectively slidably connected to the inner side walls of the pair of first through grooves (14), and the pair of vibration-absorbing blocks (17) are in the shape of a right-angled trapezoid; the bottom end of the outer wall of the square block (9) is fixedly connected to a pair of connecting blocks (18), and the bottom ends of the outer walls of the pair of connecting blocks (18) are respectively slidably connected to the inclined surfaces on one side of the outer walls of the pair of vibration-absorbing blocks (17).

2. A shock absorber for a punch press according to claim 1, characterized in that: The outer wall of the circular block (11) is sealingly fixed to the inner wall of the circular groove (10); a sealed space is formed between the circular groove (10) and the circular block (11); a piston rod (19) is fixed to the bottom end of the outer wall of the shock-absorbing block (13), and the bottom end of the outer wall of the piston rod (19) passes through the circular block (11), and the piston rod (19) and the circular block (11) are sealingly slidably connected; a resistance block (20) is fixed to the bottom end of the outer wall of the piston rod (19); a rubber ring (21) is fixed to the outer wall of the resistance block (20), and the rubber ring (21) matches the inner wall of the circular groove (10).

3. A shock absorber for a punch press according to claim 2, characterized in that: A pair of square rods (22) are fixedly connected to one side of the outer wall of the square plate (15), and the vibration absorbing block (17) is located between the pair of square rods (22); a group of first square grooves (23) are provided on opposite sides of the outer walls of the pair of square rods (22); friction blocks (25) are fixedly connected to opposite sides of the inner walls of the two groups of the first square grooves (23) through fourth springs (24), and the two groups of friction blocks (25) are matched with the vibration absorbing block (17), and the outer side walls of the two groups of friction blocks (25) are respectively slidably connected to the inner side walls of the two groups of the first square grooves (23); a group of anti-sliding blocks (26) are fixedly connected to opposite sides of the outer walls of the two groups of the friction blocks (25).

4. A shock absorber for a punch press according to claim 3, characterized in that: The damping shell (6) has two opposite sides of its inner wall provided with sliding grooves (27); a pair of inner side walls of the sliding grooves (27) are provided with linkage blocks (28); a pair of outer side walls of the linkage blocks (28) are fixedly connected with extrusion blocks (30) via fifth springs (29), and the pair of extrusion blocks (30) are matched with the lower mold (4); a pair of outer side walls of the linkage blocks (28) are fixedly connected with a pair of guide rods (31); a pair of outer side walls of the extrusion blocks (30) are provided with a pair of guide grooves (32), and the two pairs of guide grooves (32) are matched with the two pairs of guide rods (31) respectively; a baffle (33) is provided at the top end of the outer wall of the damping shell (6), and the pair of baffles (33) are matched with the pair of sliding grooves (27) respectively.

5. A shock absorber for a punch press according to claim 4, characterized in that: A circular rod (34) is fixedly connected to one end of the outer wall of the vibration absorbing block (17), and one end of the outer wall of the circular rod (34) passes through the square plate (15); a thrust block (35) is fixedly connected to one end of the outer wall of the circular rod (34) passing through the square plate (15), and the thrust block (35) is in the shape of a right-angled trapezoid; the inner side walls of a pair of sliding grooves (27) are both slidably connected to a linkage plate (36), and the linkage plate (36) is in the shape of an isosceles trapezoid, and the pair of linkage plates (36) are respectively matched with a pair of thrust blocks (35); the outer side walls of a pair of linkage blocks (28) are respectively slidably connected to the inner side walls of a pair of sliding grooves (27); the pair of linkage blocks (28) are respectively matched with a pair of linkage plates (36).

6. A shock absorber for a punch press according to claim 5, characterized in that: A group of auxiliary grooves (37) are provided on one side of the outer wall of the extrusion block (30), and the group of auxiliary grooves (37) are distributed in a cross shape; an auxiliary rod (39) is fixedly connected to one side of the inner wall of the group of auxiliary grooves (37) through a sixth spring (38), and the outer side walls of the group of auxiliary rods (39) are respectively slidably connected to the inner side walls of a pair of auxiliary grooves (37); the two groups of auxiliary rods (39) are matched with the lower mold (4), and anti-slip patterns are provided on opposite ends of the outer walls of the two groups of auxiliary rods (39).

7. A shock absorber for a punch press according to claim 5, characterized in that: The vibration absorbing block (17) is fixedly connected to movable blocks (40) on opposite sides of the outer wall, and the opposite ends of the outer walls of a pair of movable blocks (40) are semicircular; the inner wall of the shock absorbing shell (6) is fixedly connected to clamping plates (42) on opposite sides through the seventh spring (41), and the two pairs of clamping plates (42) are matched with the two pairs of movable blocks (40) respectively; one side of the outer wall of the clamping plate (42) is wavy, and the wavy outer wall of the clamping plate (42) is matched with one semicircular end of the movable block (40); the bottom end of the outer wall of the clamping plate (42) is slidably connected to the bottom end of the inner wall of the shock absorbing shell (6); the first spring (8), the second spring (12), the third spring (16), the fourth spring (24), the fifth spring (29), the sixth spring (38) and the seventh spring (41) are all provided with dampers.

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