Multi-station stamping equipment for automobile part production

Abstract

The invention relates to the technical field of stamping metal, and discloses automobile part production multi-station stamping equipment which comprises a stamping machine, a lower die, an upper die and a part loosening mechanism. The lower die and the upper die are both installed at the machining position of a punching machine, and a part loosening mechanism is arranged in the lower die and used for loosening and pushing out a punched part after punching when the upper die is lifted. The part loosening mechanism specifically comprises four part pushing columns and a master control mechanism, wherein the four part pushing columns are respectively arranged at four corners of a model groove of the lower mold; the master control mechanism is connected with the lower die and the upper die through a die connecting rope and used for detecting the rising height of the upper die after stamping is completed. The bottom of each piece pushing column is provided with a vibration piece, and the vibration pieces and the piece pushing columns are movably connected with the lower die. By means of the ingeniously-designed part loosening mechanism, the production efficiency is remarkably improved, the four part pushing columns in the part loosening mechanism are evenly distributed at the four corners of the model groove, it is guaranteed that stress on stamping parts is even, and deformation is effectively avoided.

Description

Technical Field

[0001] The invention relates to the field of stamping metals, and more particularly to a multi-station stamping device for producing automobile parts. Background Art

[0002] The working principle of multi-station stamping equipment for automobile parts production involves the coordinated work of multi-station presses and multi-station dies, as well as the integration and automatic control of the entire production line. This equipment has the advantages of high precision, high efficiency, and long life, and is widely used in stamping production in industries such as automobile parts.

[0003] The multi-station press is an advanced press equipment, which integrates the functions of multiple presses and the depalletizing and feeding system, which is equivalent to an automated press production line. The press is the core component of the stamping operation. It applies appropriate stamping force according to the requirements of the mold and the workpiece. The multi-station press generally adopts a multi-slide or single-slide structure to adapt to different stamping process requirements.

[0004] After stamping, the stamped parts are easily adhered to the die, which makes it difficult to remove the parts, easily damage the stamped parts and affect their quality. The simple ejection mechanism is difficult to ensure that the stamped parts are evenly stressed and easily cause deformation of the stamped parts. To this end, we propose a multi-station stamping equipment for the production of automotive parts. Summary of the invention

[0005] The invention provides a multi-station stamping device for producing automobile parts, which solves the technical problems in related technologies.

[0006] The present invention provides a multi-station stamping equipment for producing automobile parts, comprising: a stamping machine, a lower die, an upper die and a loosening mechanism;

[0007] The lower die and the upper die are both installed at the processing position of the punching machine, and a loosening mechanism is provided inside the lower die to loosen and push out the stamped parts when the upper die is lifted;

[0008] The loosening mechanism specifically comprises four pushing columns and a general control mechanism, wherein the four pushing columns are respectively arranged at the four corners of the mold groove of the lower mold;

[0009] The master control mechanism connects the lower die and the upper die through a die connecting rope to detect the rising height of the upper die after stamping.

[0010] The bottom of each pusher column is equipped with a vibrating member, and the vibrating member and the pusher column are movably connected to the lower mold;

[0011] The vibrating member comprises four seesaw plates and two co-lifting arms, wherein the seesaw plates and co-lifting arms are connected to the master control mechanism through control ropes and platform pulling ropes respectively;

[0012] When the upper mold is lifted, the control rope and the pull rope are driven by the master control mechanism to provide power for the seesaw and the lifting arm, pulling the four seesaws to reciprocate.

[0013] Furthermore, a model groove is provided in the center of the lower mold, and four push-piece columns are all inserted through the bottom walls of the four corners of the model groove. Limiting plates are fixedly provided on both sides of the push-piece columns, and downward compression springs are fixedly provided on the upper walls of the two limit plates, and the tops of the downward compression springs are fixedly connected to the lower mold, pushing the push-piece columns to retract and be flush with the lower wall of the model groove.

[0014] Furthermore, the four rockers correspond one by one to the four push-piece columns, and an upper spring is fixedly provided at one end of the four rockers away from the corresponding push-piece columns. A through-column hole is opened at one end of the four rockers close to the corresponding push-piece columns, and a force-bearing column is passed through the through-column hole, and the force-bearing column is fixedly connected to the push-piece column, and the diameter of the force-bearing column is smaller than the diameter of the through-column hole.

[0015] Furthermore, a rotating column is fixedly provided on one end of the lower wall of the seesaw away from the upper top spring, and the seesaw is rotatably connected to the lower mold through the rotating column. Control ropes are fixedly provided on one end of the four seesaws close to the upper top spring, and the control ropes of the two seesaws on the same side are gathered together, and a force-bearing ball is fixedly provided on one end of the control rope away from the seesaw.

[0016] Furthermore, the master control mechanism also includes a master control box, a partition plate is fixedly arranged at the center position of the master control box, a slider is respectively arranged on both sides of the master control box, the two sliders are symmetrical with respect to the center line of the partition plate, and the two sliders are both slidably connected to the master control box, and spring plates are fixedly arranged between the two sliders and the partition plate, and the spring plates are all arc-shaped structures.

[0017] Furthermore, the end of the connecting mold rope away from the upper mold passes through the partition plate, and the end of the connecting mold rope passing through the partition plate is fixedly connected to two pull block ropes, the end of the pull block rope away from the connecting mold rope passes through the slider and is fixedly connected to a force-bearing auxiliary rope, and a reel is provided at the end of the force-bearing auxiliary rope away from the pull block rope.

[0018] Furthermore, the reel component is fixedly connected to the main control box, the force-bearing auxiliary rope is wound around the reel of the reel component, and a blocking buckle is fixedly provided at one end of the force-bearing auxiliary rope close to the reel component, the diameter of the blocking buckle is larger than the diameter of the circular hole through which the force-bearing auxiliary rope passes through the slider, and the elasticity of the force-bearing auxiliary rope is greater than the elasticity of the pull block rope.

[0019] Furthermore, a plurality of ball-pushing arms are fixedly arranged on the reel of the reel, and the ball-pushing arms are aligned with the force-bearing ball, a pull block rope is arranged on the connecting mold rope between the lower mold and the upper mold, and one end of the pull block rope away from the connecting mold rope is fixedly connected to the frame of the punching machine.

[0020] Furthermore, force pads are fixedly provided on the upper walls at both ends of the lifting arm, and the force pads are aligned with the force columns. A counterweight block is fixedly provided at the center position of the lower wall of the lifting arm, and force platforms are fixedly provided on both sides of the counterweight block.

[0021] Furthermore, a push-up platform is slidably arranged below the force-bearing platform, the push-up platform is slidably connected to the lower mold, a drag-reducing wheel is rotatably arranged below the push-up platform, and a pull rope passes through the counterweight block and is fixedly connected to the push-up platform.

[0022] The beneficial effects of the present invention are:

[0023] The present invention significantly improves production efficiency through an ingeniously designed loosening mechanism. The four pushing columns in the loosening mechanism are evenly distributed at the four corners of the model slot to ensure that the stamping parts are evenly stressed and effectively avoid deformation. The mold connecting rope is used to accurately sense the lifting height of the upper mold, and the vibrating part is started at the right time to achieve accurate vibration loosening and pushing out of the stamping parts. The synergistic effect of the seesaw and the lifting arm realizes reciprocating vibration through the drive of the control rope and the pull rope, which not only loosens the adhesion between the stamping parts and the mold, but also pushes them out smoothly, greatly saving the time and energy of manual removal. This design not only improves the degree of automation, but also significantly enhances the stability and reliability of the equipment, providing a strong guarantee for the efficient and high-quality production of automotive parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the connection structure between the lower mold and the upper mold of the present invention;

[0026] Figure 3 It is a schematic diagram of the lower mold structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the pusher column of the present invention;

[0028] Figure 5 It is a schematic diagram of the seesaw structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the column-piercing hole structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the same lifting arm structure of the present invention;

[0031] Figure 8 It is a schematic diagram of the main structure of the master control box of the present invention;

[0032] Fig. 9 It is a schematic diagram of the top view structure of the master control box of the present invention.

[0033] In the figure: 11, punching machine; 12, lower mold; 13, upper mold; 14, model slot; 2, loosening mechanism; 21, pushing column; 22, limiting plate; 23, lower pressure spring; 24, force column; 31, seesaw; 32, rotating column; 33, upper spring; 34, control rope; 35, column hole; 36, force ball; 37, reel; 38, force auxiliary rope; 39, ball pushing arm; 301, blocking buckle; 41, lifting arm; 42, counterweight; 43, force pad; 44, force platform; 45, pushing platform; 46, drag reduction wheel; 47, pull platform rope; 5, master control mechanism; 51, master control box; 52, mold connecting rope; 53, block pulling rope; 54, slider; 55, spring piece; 56, pull rope belt. DETAILED DESCRIPTION

[0034] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a multi-station stamping equipment for producing automobile parts includes: a stamping machine 11, a lower die 12, an upper die 13 and a loosening mechanism 2;

[0036] The lower die 12 and the upper die 13 are both installed at the processing position of the punching machine 11, and a loosening mechanism 2 is provided inside the lower die 12 for vibrating and loosening and pushing out the stamped parts when the upper die 13 is lifted;

[0037] The loosening mechanism 2 specifically comprises four pushing columns 21 and a master control mechanism 5, wherein the four pushing columns 21 are respectively arranged at the four corners of the mold groove 14 of the lower mold 12;

[0038] The master control mechanism 5 connects the lower die 12 and the upper die 13 via a die connecting rope 52, and is used to detect the rising height of the upper die 13 after stamping is completed;

[0039] The bottom of each pusher column 21 is equipped with a vibrating member, and the vibrating member and the pusher column 21 are movably connected to the lower mold 12;

[0040] The vibrating member includes four seesaw plates 31 and two co-lifting arms 41, wherein the seesaw plates 31 and co-lifting arms 41 are connected to the master control mechanism 5 through control ropes 34 and pull ropes 47 respectively;

[0041] When the upper mold 13 is lifted, the control rope 34 and the pull rope 47 are driven by the master control mechanism 5 to provide power for the seesaw 31 and the lifting arm 41, and pull the four seesaws 31 to reciprocate.

[0042] A model groove 14 is provided in the center of the lower mold 12, and four push-piece columns 21 are all passed through the bottom walls of the four corners of the model groove 14. Limit plates 22 are fixedly provided on both sides of the push-piece columns 21. Downward compression springs 23 are fixedly provided on the upper walls of the two limit plates 22, and the top of the downward compression spring 23 is fixedly connected to the lower mold 12, pushing the push-piece columns 21 to retract and be flush with the lower wall of the model groove 14.

[0043] The four rockers 31 correspond to the four push-piece columns 21 one by one, and an upper spring 33 is fixedly provided at one end of the four rockers 31 away from the corresponding push-piece columns 21, and a through-column hole 35 is opened at one end of the four rockers 31 close to the corresponding push-piece columns 21. A force-bearing column 24 is penetrated inside the through-column hole 35, and the force-bearing column 24 is fixedly connected to the push-piece column 21, and the diameter of the force-bearing column 24 is smaller than the diameter of the through-column hole 35.

[0044] A rotating column 32 is fixedly provided on one end of the lower wall of the seesaw 31 away from the upper spring 33, and the seesaw 31 is rotatably connected to the lower mold 12 through the rotating column 32. A control rope 34 is fixedly provided on one end of the four seesaws 31 close to the upper spring 33, and the control ropes 34 of the two seesaws 31 on the same side are gathered together, and a force-bearing ball 36 is fixedly provided on one end of the control rope 34 away from the seesaw 31.

[0045] like Figure 5 , Figure 6 and Figure 7 As shown, the master control mechanism 5 also includes a master control box 51, a partition plate is fixedly arranged at the center position of the master control box 51, a slider 54 is respectively arranged on both sides of the master control box 51, the two sliders 54 are symmetrical with respect to the center line of the partition plate, and the two sliders 54 are both slidably connected to the master control box 51, and spring plates 55 are fixedly arranged between the two sliders 54 and the partition plate, and the spring plates 55 are all arc-shaped structures.

[0046] The end of the mold connecting rope 52 away from the upper mold 13 passes through the partition plate, and the end of the mold connecting rope 52 passing through the partition plate is fixedly connected to two pull block ropes 53, the end of the pull block rope 53 away from the mold connecting rope 52 passes through the slider 54, and is fixedly connected to the force-bearing auxiliary rope 38, and the end of the force-bearing auxiliary rope 38 away from the pull block rope 53 is provided with a reel part 37.

[0047] The reel component 37 is fixedly connected to the main control box 51, and the force-bearing auxiliary rope 38 is wound around the reel of the reel component 37, and a blocking buckle 301 is fixedly provided at one end of the force-bearing auxiliary rope 38 close to the reel component 37. The diameter of the blocking buckle 301 is larger than the diameter of the circular hole through which the force-bearing auxiliary rope 38 passes through the slider 54, and the elasticity of the force-bearing auxiliary rope 38 is greater than the elasticity of the pull block rope 53.

[0048] like Figure 8 and Fig. 9 As shown, a plurality of ball-pushing arms 39 are fixedly provided on the reel of the reel member 37, and the ball-pushing arms 39 are aligned with the force-bearing ball 36, a drawstring belt 56 is provided on the connecting mold rope 52 between the lower mold 12 and the upper mold 13, and one end of the drawstring belt 56 away from the connecting mold rope 52 is fixedly connected to the frame of the punching machine 11.

[0049] Force pads 43 are fixedly provided on the upper walls at both ends of the lifting arm 41, and the force pads 43 are aligned with the force columns 24. A counterweight block 42 is fixedly provided at the center position of the lower wall of the lifting arm 41, and force platforms 44 are fixedly provided on both sides of the counterweight block 42.

[0050] A push-up platform 45 is slidably provided below the force-bearing platform 44 , and the push-up platform 45 is slidably connected to the lower mold 12 . A drag-reducing wheel 46 is rotatably provided below the push-up platform 45 . A pull rope 47 passes through the counterweight block 42 and is fixedly connected to the push-up platform 45 .

[0051] When using this punching machine 11, the upper mold 13 needs to be lifted to the highest position first, and then the staff puts the raw material of the automobile parts to be processed in the mold groove 14 of the lower mold 12, and the raw material of the automobile parts to be processed is placed in each lower mold 12, and multiple automobile parts can be stamped at the same time;

[0052] After the raw materials of the automobile parts to be processed are arranged in a standard manner, the upper mold 13 is lowered and combined with the lower mold 12 to punch the raw materials of the automobile parts to be processed into the shape of the model groove 14, so as to be processed into automobile parts. The punching machine 11 drives the upper mold 13 to punch downward, and cooperates with the model groove 14 in the lower mold 12 to complete the stamping forming of the automobile parts.

[0053] When the upper mold 13 descends and closes with the lower mold 12, the mold connecting rope 52 is pulled by the drawstring 56, so that the mold connecting rope 52 is away from the closing of the lower mold 12 and the upper mold 13 in a relaxed state, preventing the mold connecting rope 52 from being clamped in the lower mold 12 and the upper mold 13. The equipment is designed with safety factors in mind, such as the pull rope 56 to protect the mold connecting rope 52 from being clamped in the lower mold 12 and the upper mold 13. In addition, the blocking buckle 301 and the slider 54 on the force-bearing secondary rope 38 also ensure the safety of the equipment during operation;

[0054] After the lower mold 12 and the upper mold 13 are combined and stamped, the mold connecting rope 52 is gradually pulled by lifting the upper mold 13. As the upper mold 13 is lifted to a preset height, the mold connecting rope 52 is lengthened, and the two pull block ropes 53 are pulled by the mold connecting rope 52 at the same time. As the mold connecting rope 52 is gradually pulled out, the two pull block ropes 53 simultaneously pull out the force-bearing auxiliary rope 38 wound up by the reel 37, and the reel 37 is driven by the force-bearing auxiliary rope 38 being pulled out. Rotate, through the rotation of the reel 37, a plurality of ball-pushing arms 39 hit the force-bearing ball 36 in sequence, and each time the force-bearing ball 36 is hit, a thrust can be applied to the force-bearing ball 36, so that the force-bearing ball 36 moves downward, and the control rope 34 is pulled by the force-bearing ball 36. Each time the control rope 34 is pulled, the four seesaws 31 are pressed down once, so that the other end of the seesaw 31 rotates with the rotating column 32 as the center, and the seesaw 31 pushes the pusher column 21 upward to impact;

[0055] Afterwards, when the second ball-pushing arm 39 does not hit the force-bearing ball 36, the elasticity of the upper top spring 33 resets the seesaw 31 and the pusher column 21, thereby repeating this action many times, so that the stamped automobile parts can be loosened in the mold slot 14, and the automobile parts can be vibrated and loosened. The equipment adopts multiple mechanisms such as the seesaw 31, the lifting arm 41 and the vibrating member to realize the vibration loosening of the stamped parts. This design not only improves the loosening effect, but also increases the flexibility and adaptability of the equipment, and can cope with automobile parts of different shapes and sizes. Through the precise coordination of the connecting mold rope 52, the reel 37, the ball-pushing arm 39 and the control rope 34, the equipment can automatically loosen the stamped automobile parts when the upper mold 13 is lifted to a preset height. This precise control ensures the stamping quality of automobile parts and the reliability of loose parts.

[0056] After the stamped automobile parts are loosened, the blocking buckle 301 just reaches the side wall position of the slider 54, and the blocking buckle 301 is blocked. As the mold connecting rope 52 continues to be pulled, the slider 54 is driven to slide toward the partition plate under the pulling force, and the pull rope 47 is pulled by the slider 54;

[0057] When the pull rope 47 is pulled, the two push-up platforms 45 slide toward the counterweight 42 at the same time, and the two push-up platforms 45 push up the two force-bearing platforms 44 at the same time, so that the lifting arm 41 gradually rises, and the lifting arm 41 pushes up the force-bearing column 24 at the same time, so that the push-up column 21 gradually rises, and the loose automobile parts are pushed out of the mold slot 14, so that the staff can take out the stamped automobile parts.

[0058] Finally, the staff again places the stamping raw materials of automobile parts to be processed on the four pusher columns 21. Then, as the upper mold 13 descends, the raw materials are gradually brought into the mold groove 14. At the same time, the mold connecting rope 52 gradually relaxes, and the lower pressure spring 23 pushes down the limit plate 22, so that the pusher column 21 is gradually reset, and the force-bearing platform 44 squeezes the pusher platform 45 to reset the pusher platform 45. At this time, the raw materials have been brought to the mold groove 14.

[0059] If the raw materials are not completely placed in the standard position, the reel 37 rewinds the stressed auxiliary rope 38. The reel 37 is powered by a torsion spring. The reverse rotation of the reel 37 drives the ball-pushing arm 39 to hit the stressed ball 36, thereby vibrating the pusher column 21 and vibrating the raw materials that are not placed in the standard position to the standard position.

[0060] The equipment realizes efficient and automated production of automobile parts through the closing and separation of the upper mold 13 and the lower mold 12, and the automatic operation of the loosening mechanism 2, which not only improves production efficiency, but also reduces dependence on manual operation and reduces labor costs.

[0061] The equipment is able to process automotive parts of various shapes and sizes by simply replacing the corresponding molds. This flexibility enables the equipment to be widely used in different automotive parts production lines, improving the overall efficiency and flexibility of the production line.

[0062] Through automation and precise control, the equipment can reduce energy waste and environmental pollution. At the same time, the design of the equipment also takes into account the recyclability and reuse of materials, in line with the environmental protection requirements of modern industrial production.

[0063] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are within the protection of the present embodiment.

Claims

1. A multi-station stamping equipment for automobile parts production, characterized in that: include: A punching machine (11), a lower die (12), an upper die (13) and a loosening mechanism (2); The lower die (12) and the upper die (13) are both installed at the processing position of the punching machine (11), and a loosening mechanism (2) is provided inside the lower die (12) for loosening and pushing out the stamped parts when the upper die (13) is lifted; The loosening mechanism (2) specifically comprises four pushing columns (21) and a general control mechanism (5), wherein the four pushing columns (21) are respectively arranged at four corners of the mold groove (14) of the lower mold (12); The master control mechanism (5) is connected to the lower mold (12) and the upper mold (13) via a mold connecting rope (52) and is used to detect the rising height of the upper mold (13) after stamping is completed; The bottom of each pusher column (21) is equipped with a vibrating member, and the vibrating member and the pusher column (21) are movably connected to the lower mold (12); The vibrating member comprises four seesaw plates (31) and two co-lifting arms (41), wherein the seesaw plates (31) and the co-lifting arms (41) are respectively connected to the general control mechanism (5) via a control rope (34) and a platform pulling rope (47); When the upper mold (13) is lifted, the control rope (34) and the pull rope (47) are driven by the master control mechanism (5) to provide power for the seesaw (31) and the lifting arm (41), thereby pulling the four seesaws (31) to reciprocate.

2. The multi-station stamping equipment for producing automobile parts according to claim 1, characterized in that: A model groove (14) is provided at the center of the lower mold (12), and the four push-piece columns (21) are all inserted through the bottom walls of the four corners of the model groove (14). Limit plates (22) are fixedly provided on both sides of the push-piece columns (21), and downward pressure springs (23) are fixedly provided on the upper walls of the two limit plates (22), and the top of the downward pressure spring (23) is fixedly connected to the lower mold (12), so as to push the push-piece columns (21) to retract and be flush with the lower wall of the model groove (14).

3. The multi-station stamping equipment for producing automobile parts according to claim 1, characterized in that: The four seesaws (31) correspond to the four push-piece columns (21) one by one. An upper spring (33) is fixedly arranged at one end of the four seesaws (31) away from the corresponding push-piece columns (21). A through-column hole (35) is opened at one end of the four seesaws (31) close to the corresponding push-piece columns (21). A force-bearing column (24) is penetrated inside the through-column hole (35). The force-bearing column (24) is fixedly connected to the push-piece column (21), and the diameter of the force-bearing column (24) is smaller than the diameter of the through-column hole (35).

4. The multi-station stamping equipment for producing automobile parts according to claim 3, characterized in that: A rotating column (32) is fixedly provided at one end of the lower wall of the seesaw (31) away from the upper top spring (33), and the seesaw (31) is rotatably connected to the lower mold (12) through the rotating column (32). A control rope (34) is fixedly provided at one end of the four seesaws (31) close to the upper top spring (33), and the control ropes (34) of the two seesaws (31) on the same side are gathered together, and a force-bearing ball (36) is fixedly provided at one end of the control rope (34) away from the seesaw (31).

5. The multi-station stamping equipment for producing automobile parts according to claim 4, characterized in that: The master control mechanism (5) further comprises a master control box (51), a partition plate is fixedly arranged at the center position of the master control box (51), a slider (54) is respectively arranged on both sides of the master control box (51), the two sliders (54) are symmetrical with respect to the center line of the partition plate, and the two sliders (54) are both slidably connected to the master control box (51), and spring plates (55) are fixedly arranged between the two sliders (54) and the partition plate, and the spring plates (55) are both arc-shaped structures.

6. The multi-station stamping equipment for producing automobile parts according to claim 5, characterized in that: The end of the connecting mold rope (52) away from the upper mold (13) passes through the partition plate, and the end of the connecting mold rope (52) passing through the partition plate is fixedly connected to two pull block ropes (53), the end of the pull block rope (53) away from the connecting mold rope (52) passes through the slider (54) and is fixedly connected to a force-bearing auxiliary rope (38), and the end of the force-bearing auxiliary rope (38) away from the pull block rope (53) is provided with a reel (37).

7. The multi-station stamping equipment for producing automobile parts according to claim 6, characterized in that: The reel member (37) is fixedly connected to the main control box (51), the stressed auxiliary rope (38) is wound around the reel of the reel member (37), and a blocking buckle (301) is fixedly provided at one end of the stressed auxiliary rope (38) close to the reel member (37), the diameter of the blocking buckle (301) is larger than the diameter of the circular hole through which the stressed auxiliary rope (38) passes through the slider (54), and the elasticity of the stressed auxiliary rope (38) is larger than the elasticity of the pull block rope (53).

8. The multi-station stamping equipment for producing automobile parts according to claim 7, characterized in that: A plurality of ball-pushing arms (39) are fixedly arranged on the reel of the reel member (37), and the ball-pushing arms (39) are aligned with the force-bearing ball (36). A pull block rope (53) is arranged on the connecting mold rope (52) between the lower mold (12) and the upper mold (13), and one end of the pull block rope (53) away from the connecting mold rope (52) is fixedly connected to the frame of the punching machine (11).

9. The multi-station stamping equipment for producing automobile parts according to claim 8, characterized in that: Force pads (43) are fixedly provided on the upper walls at both ends of the co-elevating arm (41), and the force pads (43) are aligned with the force columns (24). A counterweight block (42) is fixedly provided at the center of the lower wall of the co-elevating arm (41), and force platforms (44) are fixedly provided on both sides of the counterweight block (42).

10. The multi-station stamping equipment for producing automobile parts according to claim 9, characterized in that: A push-up platform (45) is slidably arranged below the force-bearing platform (44), and the push-up platform (45) is slidably connected to the lower mold (12). A drag-reducing wheel (46) is rotatably arranged below the push-up platform (45), and the pull rope (47) passes through the counterweight block (42) and is fixedly connected to the push-up platform (45).

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