Multi-station continuous stamping device for automobile seat framework assembly and stamping method of multi-station continuous stamping device

Abstract

The invention discloses a multi-station continuous stamping device for an automobile seat framework assembly and a stamping method of the multi-station continuous stamping device. The multi-station continuous stamping device comprises a support, and a hydraulic cylinder is mounted on a mounting frame; a stamping table capable of rotating is arranged on the support, and a containing groove for containing an automobile seat framework assembly is formed in the stamping table. The method comprises the following steps that S1, the seat framework assembly needing to be stamped is placed in a containing groove, a hydraulic cylinder is started, and the hydraulic cylinder drives a stamping die to move downwards to stamp the seat framework assembly. Through the multi-station continuous punching design, the separation and ejection process is optimized, it is ensured that the bottom of the punching die is flat, heat exchange of the punching table and the high automation degree are achieved, and the problems that a traditional single-station punching technology is low in production efficiency and high in defective rate, and the punching quality is difficult to guarantee are effectively solved; and the production efficiency and quality of automobile seat framework assembly manufacturing are improved, the production cost is reduced, and good application prospects and economic benefits are achieved.

Description

Technical Field

[0001] This invention relates to the field of stamping technology for seat frame assemblies, and more particularly to a multi-station continuous stamping apparatus and stamping method for automotive seat frame assemblies. Background Technology

[0002] Traditional single-station stamping processes are widely used in the manufacturing of automotive seat frames, but they have many limitations. Single-station stamping can only complete one stamping operation at a time. For seat frame parts with complex shapes that require multiple forming processes, multiple clamping and positioning operations are necessary. This not only increases auxiliary time in the production process but also reduces production efficiency.

[0003] When stamping the seat frame assembly, the die presses the assembly into close contact with it. When the die moves upward, it may cause the seat frame assembly to move upward, or even deform, resulting in damage to the seat frame assembly and increasing the defect rate. The common method is to use a limit pin to limit the stamped seat frame assembly without affecting the up and down movement of the die, so as to separate it from the die. Although this setting can reduce the defect rate, the limit pin needs to be removed before the ejector device can be used to eject the seat frame assembly and remove it, thus reducing the stamping efficiency.

[0004] Therefore, this application proposes a multi-station continuous stamping device and stamping method for automotive seat frame assemblies. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned technical problems by proposing a multi-station continuous stamping device and stamping method for automobile seat frame assembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A multi-station continuous stamping device for automotive seat frame assemblies includes a bracket, an mounting bracket mounted on the upper end of the bracket, and a hydraulic cylinder mounted on the mounting bracket; the bracket is provided with a rotatable stamping table, and the stamping table is provided with a placement slot for placing automotive seat frame assemblies. The output end of the hydraulic cylinder is connected to a stamping die. The bottom of the stamping die is provided with a slidably disposed separation block. After the stamping die has finished stamping the car seat frame assembly, the separation block abuts against the car seat frame assembly, causing the stamping die to separate from the car seat frame assembly.

[0007] Preferably, the bracket is provided with a driving structure, and the stamping table is mounted on the driving structure. The driving structure can drive the stamping table to rotate intermittently. When the stamping table stops, one of the placement slots on the stamping table is directly opposite the stamping die.

[0008] Preferably, the bottom of the stamping die is provided with a guide chute, the inner top of the guide chute is fixed with a supporting block, and the separating block is sealed and slid in the guide chute, and the bottom of the separating block is flush with the bottom of the stamping die when the separating block abuts against the supporting block.

[0009] Preferably, the hydraulic structure is further provided with a liquid supply structure capable of driving the driving structure to work and capable of driving the separating block to move, the liquid supply structure is capable of driving the separating block to move downward in the guide chute, the separating block is fixed with an elastic member on the stamping die, and the separating block is capable of moving upward and resetting under the action of the elastic member.

[0010] Preferably, the liquid supply structure is connected with the driving structure, when the liquid supply structure rotates clockwise, the liquid supply structure drives the driving structure to work, and when the liquid supply structure rotates counterclockwise, the liquid supply structure works alone and the driving structure does not work.

[0011] Preferably, the liquid supply structure comprises a piston cylinder mounted on a support, a moving piston is slid in the piston cylinder, a circular plate is arranged above the support, a connecting rod is eccentrically hinged connected to the moving piston, and the connecting rod is hingedly connected to the moving piston.

[0012] Preferably, the transmission structure further comprises a rack plate matched with the hydraulic cylinder, a shaft rod is rotatably connected to the mounting bracket, a gear meshing with the rack plate is mounted on the shaft rod, a driving shaft is coaxially fixed on the circular plate, synchronous wheels are mounted on the driving shaft and the shaft rod, the two synchronous wheels are connected through a synchronous belt, and the shaft rod is capable of driving the circular plate to rotate forward and backward, and further drives the moving piston to reciprocate in the piston cylinder.

[0013] Preferably, the stamping table is provided with a heat exchange cavity for heat exchange, the liquid supply structure is capable of communicating with the heat exchange cavity, and the hydraulic oil delivered into the heat exchange cavity is capable of heat exchanging with the stamping table.

[0014] The application further discloses a method for multi-station continuous stamping of an automobile seat framework assembly. S1, placing the seat framework assembly to be stamped in a placing groove, starting a hydraulic cylinder, and driving the stamping die to move downward to stamp the seat framework assembly; S2, driving the stamping die to move upward and driving the liquid supply structure to work, the liquid supply structure delivers hydraulic oil into the guide chute to drive the separating block to move downward, and the separating block moves downward to separate the stamped seat framework assembly from the stamping die; S3, after the seat framework assembly is separated from the stamping die, the liquid supply structure no longer delivers hydraulic oil into the guide chute, and the hydraulic oil is delivered into the heat exchange cavity to heat exchange with the stamping table; S4, then the rack plate meshes with the gear to drive its rotation, and through transmission, the stamping table rotates, so that another seat frame assembly is aligned with the stamping die, waiting to be stamped.

[0015] Compared with the prior art, the beneficial effects of this invention are as follows: 1. The present invention is equipped with a rotatable stamping table, which has multiple placement slots for placing automotive seat frame assemblies. The drive structure drives the stamping table to rotate intermittently, realizing multi-station continuous stamping and improving production efficiency.

[0016] 2. The stamping die of the present invention has a slidingly arranged separation block at the bottom. After stamping, the separation block abuts against the car seat frame assembly to separate it from the stamping die. There is no need to set a limit pin, which simplifies the process and improves work efficiency.

[0017] 3. The bottom of the stamping die is provided with a guide groove, and a support block is fixed at the top of the guide groove. The separation block slides in the guide groove in a sealed manner. When the separation block and the support block abut against each other, the bottom of the separation block is flush with the bottom of the stamping die, which ensures that the bottom of the stamping die is flat, thereby ensuring the stamping quality.

[0018] 4. The stamping table is equipped with a heat exchange chamber. The liquid supply structure can be connected to the heat exchange chamber. Hydraulic oil is supplied to the heat exchange chamber to exchange heat with the stamping table. The hydraulic oil flows to the oil storage tank through the return pipe to achieve circulation, effectively exchanging heat with the stamping table and extending the service life of the equipment.

[0019] 5. The operation of the hydraulic cylinder is linked to the rotation of the drive plate through the transmission structure. The operation of the hydraulic cylinder drives the guide plate to move, and the rack plate meshes with the gear to drive the gear to rotate. In turn, the synchronous pulley and synchronous belt drive the drive shaft and the circular plate to rotate. The rotation of the circular plate drives the connecting rod to move, so that the moving piston moves back and forth in the piston cylinder, realizing the operation of the liquid supply structure. In addition, through the design of one-way bearings, the liquid supply structure can reasonably drive the movement of the drive structure and the separating block. The whole device has a high degree of automation and reduces manual operation.

[0020] In summary, this invention effectively solves the problems of low production efficiency, high defect rate, and difficulty in guaranteeing stamping quality in traditional single-station stamping processes through multi-station continuous stamping design, optimized separation and ejection process, ensuring flat bottom of stamping die, heat exchange of stamping table, and high degree of automation. It improves the production efficiency and quality of automotive seat frame assembly manufacturing, reduces production costs, and has good application prospects and economic benefits. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the multi-station continuous stamping device for automobile seat frame assembly proposed in this invention. Figure 2This is a front view of the multi-station continuous stamping device for automobile seat frame assembly proposed in this invention. Figure 3 This is a rear view of the multi-station continuous stamping device for automobile seat frame assembly proposed in this invention. Figure 4 This is a schematic diagram of the synchronous pulley in the multi-station continuous stamping device for the automotive seat frame assembly proposed in this invention. Figure 5 This is a schematic diagram of the gear structure in the multi-station continuous stamping device for automobile seat frame assembly proposed in this invention. Figure 6 This is a schematic diagram of the guide groove in the multi-station continuous stamping device for automobile seat frame assembly proposed in this invention. Figure 7 This is a schematic diagram of the worm gear in the multi-station continuous stamping device for automotive seat frame assembly proposed in this invention. Figure 8 This is a schematic diagram of the lifting plate in the multi-station continuous stamping device for automotive seat frame assembly proposed in this invention. Figure 9 This is a schematic diagram of the heat exchange cavity in the multi-station continuous stamping device for automobile seat frame assembly proposed in this invention.

[0022] In the diagram: 1. Bracket, 2. Mounting bracket, 3. Hydraulic cylinder, 4. Guide rail, 5. Guide plate, 6. Stamping table, 7. Placement slot, 8. Transmission box, 9. Oil tank, 10. Stamping die, 11. Return pipe, 12. Piston cylinder, 13. Moving piston, 14. Circular plate, 15. Rack plate, 16. Drive shaft, 17. One-way bearing, 18. Liquid outlet pipe, 19. Liquid inlet pipe, 20. Liquid inlet check valve, 21. Liquid outlet check valve, 22. Drive rod, 23. Rotary pipe, 24. Liquid supply pipe, 25. Synchronous pulley, 26. Shaft, 27. Gear, 28. Synchronous belt, 29. First solenoid valve, 30. Connecting rod, 31. Guide groove, 32. Elastic element, 33. Support block, 34. Separating block, 35. Guide groove, 36. Worm gear, 37. Worm, 38. Heat exchange chamber, 39. Second solenoid valve. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Reference Figures 1-9 A multi-station continuous stamping device for automotive seat frame assembly includes a bracket 1, an mounting bracket 2 mounted on the upper end of the bracket 1, and a hydraulic cylinder 3 mounted on the mounting bracket 2; the bracket 1 is provided with a rotatable stamping table 6, and the stamping table 6 is provided with a placement slot 7 for placing automotive seat frame assembly.

[0025] The bracket 1 is equipped with a drive structure, and the stamping table 6 is mounted on the drive structure. The drive structure can drive the stamping table 6 to rotate intermittently. When the stamping table 6 stops, one of the placement slots 7 on the stamping table 6 is directly opposite the stamping die 10.

[0026] like Figure 3 , Figure 7 As shown, the drive structure includes a transmission box 8 fixed on the bracket 1. The transmission box 8 is provided with a rotatable worm wheel 36 and a worm 37. The worm wheel 36 and the worm 37 mesh with each other. A rotating tube 23 is fixed through the worm wheel 36. The rotating tube 23 passes through the transmission box 8 and is rotatably connected to it. The rotating tube 23 is coaxially fixedly connected to the stamping table 6.

[0027] like Figure 9 As shown, the stamping table 6 is provided with a heat exchange chamber 38 for heat exchange. The liquid supply structure can communicate with the heat exchange chamber 38. Hydraulic oil is supplied to the heat exchange chamber 38 to exchange heat with the stamping table 6. The rotating tube 23 is connected to the heat exchange chamber 38.

[0028] The output end of the hydraulic cylinder 3 is connected to the stamping die 10. The bottom of the stamping die 10 is provided with a slidingly arranged separation block 34. After the stamping die 10 finishes stamping the car seat frame assembly, the separation block 34 abuts against the car seat frame assembly, so that the stamping die 10 separates from the car seat frame assembly. This eliminates the problem of low stamping efficiency caused by using a limit pin to limit the stamped seat frame assembly and separate it from the die, as is the case with the existing technology.

[0029] The bottom of the stamping die 10 is provided with a guide groove 31, and a support block 33 is fixed to the top of the inner side of the guide groove 31. The separation block 34 slides in the guide groove 31 in a sealed manner. When the separation block 34 abuts against the support block 33, the bottom of the separation block 34 is flush with the bottom of the stamping die 10. This ensures that the bottom of the stamping die 10 is flat and ensures the quality of stamping.

[0030] It also includes a liquid supply structure that can drive the drive structure to work and drive the separation block 34 to move. The liquid supply mechanism can drive the separation block 34 to move downward by supplying hydraulic oil into the guide groove 31. An elastic element 32 is fixed on the separation block 34 and the stamping die 10. Under the action of the elastic element 32, the separation block 34 can be moved upward and reset. The elastic element 32 is a spring. Under the action of the spring, the separation block 34 abuts against the support block 33, that is, the spring force is greater than the weight of the separation block 34.

[0031] The liquid supply structure is connected to the drive structure. When the liquid supply structure rotates clockwise, it drives the drive structure to work. Figure 5 As shown, when the liquid supply mechanism rotates counterclockwise, the liquid supply structure works independently, while the drive structure does not work.

[0032] The liquid supply structure includes a piston cylinder 12 mounted on a bracket 1, a movable piston 13 sliding inside the piston cylinder 12, a circular plate 14 above the bracket 1, and a connecting rod 30 eccentrically hinged to the movable piston 13. The connecting rod 30 is hinged to the movable piston 13. An inlet pipe 19 and an outlet pipe 18 are connected to the piston cylinder 12. An oil storage tank 9 is installed at the bottom of the bracket 1. A return pipe 11 is connected to the oil storage tank 9. The return pipe 11 is connected to a rotating pipe 23 through a rotary joint. The inlet pipe 19 is connected to the oil storage tank 9. An inlet check valve 20 is installed on the inlet pipe 19. The inlet check valve 20 only allows oil to enter the piston cylinder 12 through the inlet pipe 19. A first solenoid valve 29 is installed on the inlet pipe 19. The first solenoid valve 29 is used to control the direction of oil flow in the inlet pipe 19.

[0033] A liquid outlet check valve 21 is connected to the liquid outlet pipe 18. The liquid outlet check valve 21 only allows the oil to flow through the piston cylinder 12 into the liquid outlet pipe 18. The liquid outlet pipe 18 is coaxially sealed and rotated with the upper end of the stamping table 6. The liquid outlet pipe 18 is connected to the heat exchange chamber 38.

[0034] In addition, a supply pipe 24 is connected to the inlet pipe 19. The supply pipe 24 is connected to the guide slide 31. A second solenoid valve 39 is provided on the supply pipe 24. The second solenoid valve 39 is used to control the flow direction of the oil in the supply pipe 24.

[0035] It also includes a transmission structure for driving the circular plate 14 to rotate. The transmission structure includes a rack plate 15 that cooperates with the hydraulic cylinder 3. A shaft 26 is rotatably connected to the mounting bracket 2. A gear 27 that meshes with the rack plate 15 is installed on the shaft 26. A drive shaft 16 is coaxially fixed on the circular plate 14. Synchronous pulleys 25 are installed on both the drive shaft 16 and the shaft 26. The two synchronous pulleys 25 are connected by a synchronous belt 28. The forward and reverse rotation of the shaft 26 can drive the circular plate 14 to rotate in both directions, thereby driving the moving piston 13 to reciprocate within the piston cylinder 12.

[0036] A one-way bearing 17 is fixed on the shaft 26. A drive rod 22 is rotatably connected to the one-way bearing 17 via a torsion spring. The drive rod 22 is coaxially fixedly connected to the worm gear 37. When the shaft 26 rotates, it drives the one-way bearing 17 to rotate, thus rotating the drive rod 22 and the worm gear 37. When the shaft 26 rotates in the reverse direction, the drive rod 22 does not rotate under the action of the one-way bearing 17.

[0037] In addition, two guide rails 4 are fixed on the inner side wall of the mounting bracket 2, and a guide plate 5 is fixed on the output end of the hydraulic cylinder 3. The end of the guide plate 5 is provided with a guide groove 35 that cooperates with the guide rail 4. The guide groove 35 is slidably sleeved on the outside of the guide rail 4. The stamping die 10 is fixedly installed at the bottom of the guide plate 5 through a spring tube.

[0038] This invention also discloses a method for multi-station continuous stamping of an automotive seat frame assembly, comprising the following steps: S1, the seat frame assembly to be stamped is placed in the placement slot 7, and the hydraulic cylinder 3 is activated. The hydraulic cylinder 3 drives the stamping die 10 to move down to stamp the seat frame assembly. The operation of the hydraulic cylinder 3 drives the guide plate 5 to move. Under the guidance of the guide rail 4, the guide plate 5 and the stamping die 10 can move down stably. As the guide plate 5 moves, the rack plate 15 meshes with the gear 27, thereby driving the gear 27 to rotate. Then the stamping die 10 abuts against the car seat frame assembly. As the guide plate 5 moves, it squeezes the spring tube and finally applies pressure to the stamping die 10. With the help of the placement slot 7, the car seat frame assembly can be stamped.

[0039] S2, the hydraulic cylinder 3 drives the stamping die 10 to move upward and drives the liquid supply structure to work. The gear 27 rotates and drives the shaft 26 to rotate. The shaft 26 rotates and drives the synchronous pulley 25 to rotate. Under the transmission of the synchronous belt 28, the drive shaft 16 and the circular plate 14 rotate. The rotation of the circular plate 14 drives the connecting rod 30 to move. The movement of the connecting rod 30 drives the moving piston 13 to reciprocate in the piston cylinder 12. When the moving piston 13 moves close to the circular plate 14, it can draw the hydraulic oil in the oil tank 9 into the piston cylinder 12 through the liquid inlet pipe 19. When the moving piston 13 moves away from the circular plate 14, it can transport the hydraulic oil in the piston cylinder 12 to the heat exchange chamber 38 through the liquid outlet pipe 18. The hydraulic oil in the heat exchange chamber 38 flows back to the oil tank 9 through the return pipe 11. In this way, the hydraulic oil is circulated and the stamping table 6 can be heated by the hydraulic oil. It should be noted that at this time, the first solenoid valve 29 is in the open state and the second solenoid valve 39 is in the closed state; The hydraulic supply structure delivers hydraulic oil into the guide groove 31, driving the separation block 34 to move downward. The downward movement of the separation block 34 separates the stamped seat frame assembly from the stamping die 10. Further explanation: When the output end of the hydraulic cylinder 3 is reset, it will drive the guide plate 5 and the rack plate 15 to move upward. The upward movement of the rack plate 15 will drive the gear 27 to reverse, that is, rotate clockwise, so as to realize the operation of the fluid supply structure through transmission.

[0040] The rotation of the drive shaft 16 drives the one-way bearing 17 to rotate. Due to the friction between the worm wheel 36 and the worm 37, the torsion spring between the one-way bearing 17 and the drive rod 22 generates torque, meaning that the worm wheel 36 and the worm 37 will not rotate.

[0041] It should be noted that at this time, the first solenoid valve 29 is in the closed state and the second solenoid valve 39 is in the open state; hydraulic oil is delivered to the guide slide 31 through the outlet pipe 18 and the supply pipe 24, thereby increasing the hydraulic oil in the guide slide 31 and overcoming the spring force to drive the separation block 34 to move down. The downward movement of the separation block 34 will drive the stamped car seat frame assembly to separate from the stamping die 10. In this way, no additional positioning pin is needed to limit the movement, which improves the work efficiency and makes it less likely to damage the car seat frame assembly.

[0042] S3, after the seat frame assembly separates from the stamping die 10, the first solenoid valve 29 and the second solenoid valve 39 are both open. Under the action of the elastic element 32, the separating block 34 is reset, and the separating block 34 abuts against the support block 33 again. At this time, the bottom of the separating block 34 is flush with the bottom of the stamping die 10 again, so as to facilitate subsequent stamping work. Immediately afterwards, the first solenoid valve 29 is open and the second solenoid valve 39 is closed. The hydraulic supply structure no longer supplies hydraulic oil to the guide slide 31, and the hydraulic oil is supplied to the heat exchange chamber 38 to exchange heat with the stamping table 6. S4, then the rack plate 15 meshes with the gear 27 to drive its rotation. As the torsion spring reaches a certain torque, it will drive the drive rod 22 to rotate, which in turn drives the worm gear 37 to rotate. The rotation of the worm gear 37 drives the worm wheel 36 to rotate, which in turn drives the rotating tube 23 to rotate. The rotation of the rotating tube 23 drives the stamping table 6 to rotate. After the hydraulic cylinder 3 is fully reset, the stamping table 6 is rotated through the transmission, and another seat frame assembly is aligned with the stamping die 10, waiting for stamping. When the hydraulic cylinder 3 moves down again, it drives the gear 27 and the shaft 26 to rotate, which can realize the reset of the torsion spring. Then, as described above, the seat frame assembly can be continuously stamped.

[0043] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-station continuous stamping device for automobile seat frame assembly, comprising a bracket (1), wherein a mounting frame (2) is mounted on the upper end of the bracket (1), and a hydraulic cylinder (3) is mounted on the mounting frame (2); characterized in that, The bracket (1) is provided with a rotatable stamping table (6), and the stamping table (6) is provided with a placement slot (7) for placing the car seat frame assembly. The output end of the hydraulic cylinder (3) is connected to a stamping die (10). The bottom of the stamping die (10) is provided with a sliding separation block (34). When the stamping die (10) finishes stamping the car seat frame assembly, the separation block (34) abuts against the car seat frame assembly, causing the stamping die (10) to separate from the car seat frame assembly.

2. The multi-station continuous stamping device for automobile seat frame assembly according to claim 1, characterized in that, The bracket (1) is provided with a drive structure, and the stamping table (6) is mounted on the drive structure. The drive structure can drive the stamping table (6) to rotate intermittently. When the stamping table (6) stops, one of the placement slots (7) on the stamping table (6) is directly opposite the stamping die (10).

3. The multi-station continuous stamping device for automobile seat frame assembly according to claim 1, characterized in that, The bottom of the stamping die (10) is provided with a guide groove (31), and a support block (33) is fixed to the top of the inner side of the guide groove (31). The separation block (34) slides in the guide groove (31) in a sealed manner. When the separation block (34) abuts against the support block (33), the bottom of the separation block (34) is flush with the bottom of the stamping die (10).

4. The multi-station continuous stamping device for automobile seat frame assembly according to claim 3, characterized in that, It also includes a liquid supply structure that can drive the drive structure to work and drive the separation block (34) to move. The liquid supply mechanism can drive the separation block (34) to move downward by hydraulic oil into the guide groove (31). The separation block (34) and the stamping die (10) are fixed with an elastic element (32). Under the action of the elastic element (32), the separation block (34) can be moved upward and reset.

5. The multi-station continuous stamping device for automobile seat frame assembly according to claim 4, characterized in that, The liquid supply structure is connected to the driving structure. When the liquid supply structure rotates clockwise, it drives the driving structure to work. When the liquid supply structure rotates counterclockwise, it works independently and the driving structure does not work.

6. The multi-station continuous stamping device for automobile seat frame assembly according to claim 5, characterized in that, The liquid supply structure includes a piston cylinder (12) mounted on a bracket (1), a movable piston (13) sliding inside the piston cylinder (12), a circular plate (14) above the bracket (1), and a connecting rod (30) eccentrically hinged to the movable piston (13), the connecting rod (30) being hinged to the movable piston (13).

7. The multi-station continuous stamping device for automobile seat frame assembly according to claim 6, characterized in that, It also includes a transmission structure for driving the circular plate (14) to rotate. The transmission structure includes a rack plate (15) that cooperates with the hydraulic cylinder (3). A shaft (26) is rotatably connected to the mounting bracket (2). A gear (27) that meshes with the rack plate (15) is installed on the shaft (26). A drive shaft (16) is coaxially fixed on the circular plate (14). Synchronous pulleys (25) are installed on both the drive shaft (16) and the shaft (26). The two synchronous pulleys (25) are connected by a synchronous belt (28). The forward and reverse rotation of the shaft (26) can drive the circular plate (14) to rotate in both directions, thereby driving the moving piston (13) to move back and forth in the piston cylinder (12).

8. The multi-station continuous stamping device for automobile seat frame assembly according to claim 7, characterized in that, The stamping table (6) is provided with a heat exchange chamber (38) for heat exchange. The liquid supply structure can communicate with the heat exchange chamber (38) and deliver hydraulic oil into the heat exchange chamber (38) to exchange heat with the stamping table (6).

9. A method for multi-station continuous stamping of an automobile seat frame assembly, applied to the continuous stamping apparatus described in claim 8, characterized in that, Includes the following steps: S1, place the seat frame assembly to be stamped in the placement slot (7), start the hydraulic cylinder (3), the hydraulic cylinder (3) drives the stamping die (10) to move down to stamp the seat frame assembly; S2, the hydraulic cylinder (3) drives the stamping die (10) to move upward and drives the liquid supply structure to work. The liquid supply structure delivers hydraulic oil into the guide slide (31) and drives the separation block (34) to move downward. The separation block (34) moves downward to separate the stamped seat frame assembly from the stamping die (10). S3, after the seat frame assembly is separated from the stamping die (10), the hydraulic supply structure no longer supplies hydraulic oil to the guide groove (31), and the hydraulic oil is supplied to the heat exchange chamber (38) to exchange heat with the stamping table (6); S4, then the rack plate (15) meshes with the gear (27) to drive it to rotate, and through transmission, the stamping table (6) rotates, so that another seat frame assembly is aligned with the stamping die (10) and waiting to be stamped.

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