Stamping die for automobile cushion

Abstract

The invention relates to an automobile exhaust cushion stamping die, and relates to the technical field of stamping dies, the automobile exhaust cushion stamping die comprises a die plate assembly used for molding and a workbench used for fixing the die plate assembly, the die plate assembly comprises an upper male die and a lower female die, the lower female die is arranged on the workbench, and the upper male die and the lower female die are arranged on the workbench. An upper die driving assembly used for driving the upper male die to move towards the lower female die is arranged on the side, away from the lower female die, of the upper male die, the upper die driving assembly is arranged on the workbench, and a clamping assembly used for fixing an air cylinder gasket is arranged on one side of the lower female die. The clamping assembly comprises four clamping blocks and a clamping air cylinder, wherein the four clamping blocks are symmetrically distributed on the top of the lower female die in a cross shape and movably connected with the lower female die, the clamping air cylinder is used for driving the clamping blocks to move towards the air cylinder gasket, and the clamping blocks are matched with the lower female die in a sliding mode through a sliding assembly. The air cylinder gasket hole forming device has the advantages that the clamping assembly is used for replacing manual work to accurately position the hole forming position of the air cylinder gasket, the process is simple and convenient, and the labor cost is low.

Description

Technical Field

[0001] This application relates to the technical field of stamping dies, and in particular to a stamping die for automotive seat cushions. Background Technology

[0002] A cylinder head gasket is a sealing component located at the top of the engine block and the bottom of the cylinder head. It ensures that the high-temperature, high-pressure gases from combustion within the cylinder dome do not leak between the cylinder block and cylinder head, that the engine coolant does not leak, and that the engine oil lubricating the moving parts between the cylinder block and cylinder head does not leak. Currently, cylinder head gaskets commonly used in automobiles are typically manufactured using stamping dies. Stamping dies are specialized equipment used in cold stamping processes to shape materials into parts. Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing separation or plastic deformation to obtain the desired parts.

[0003] In related technologies, the stamping die for a cylinder head gasket includes a template assembly for molding and a drive assembly for driving the template assembly. The template assembly includes an upper template and a lower template, and the drive assembly includes a drive cylinder disposed on the upper template. The cylinder head gasket must have an oil inlet hole for oil inlet, a cylinder port for the cylinder block to pass through, and a circular hole for determining the position of the oil inlet hole and the cylinder port. Therefore, both the upper and lower templates have several through holes that communicate with the oil inlet hole, the cylinder port, and the circular hole on the surface of the cylinder head gasket. A positioning element is then provided in each group of through holes for positioning. The drive cylinder drives the upper die to move toward the lower template, applying pressure to the cylinder head gasket to cause plastic deformation, thereby realizing the production and processing of the cylinder head gasket.

[0004] However, in the relevant technology, multiple sets of positioning components are set between the upper and lower templates to accurately position the opening position of the cylinder head gasket. When the cylinder head gasket needs to be positioned to shape it, it is necessary to manually align the cylinder head gasket with several sets of positioning components in sequence for positioning. The process is cumbersome and the labor cost is high. Summary of the Invention

[0005] In order to improve the existing related technology, which uses multiple sets of positioning parts between the upper and lower templates to accurately position the opening position of the cylinder head gasket, and when the cylinder head gasket needs to be positioned for shaping, it is necessary to manually align the cylinder head gasket with several sets of positioning parts in sequence for positioning, which is a cumbersome process and has high labor costs, this application provides an automotive cylinder head gasket stamping die.

[0006] The technical solution for the automotive seat cushion stamping die provided in this application is as follows: A stamping die for an automotive cylinder head gasket includes a template assembly for molding and a worktable for fixing the template assembly. The template assembly includes an upper punch and a lower die. The lower die is disposed on the worktable. An upper die driving assembly for driving the upper punch to move toward the lower die is disposed on the side of the upper punch away from the lower die. The upper die driving assembly is disposed on the worktable. A clamping assembly for fixing the cylinder head gasket is disposed on one side of the lower die. The clamping assembly includes four clamping blocks symmetrically distributed in a cross shape on the top of the lower die and movably connected to the lower die, and a clamping cylinder for driving the clamping blocks to move toward the cylinder head gasket. The clamping blocks are slidably engaged with the lower die through a sliding assembly.

[0007] By adopting the above technical solution, when it is necessary to position and shape the cylinder head gasket, the cylinder head gasket is placed on the lower die, and then the clamping cylinder is driven. The clamping cylinder, once driven, drives the clamping assembly to clamp the cylinder head gasket, allowing the cylinder head gasket to be adjusted to a precise position and clamped. When the cylinder head gasket is adjusted to a precise position, the upper die drive assembly is driven. The upper die drive assembly, once driven, moves the upper punch towards the lower die until the upper punch and lower die are in contact. The upper punch exerts a squeezing effect on the cylinder head gasket, causing it to undergo plastic deformation, thereby producing the cylinder head gasket. The sliding component is used to slide the clamping block on the lower die, thereby adjusting the position of the clamping block on the lower die to clamp the cylinder head gasket. This application, by setting the clamping component, accurately positions the opening position of the cylinder head gasket. When the cylinder head gasket needs to be positioned for shaping, the clamping component is used to replace manual positioning of the cylinder head gasket, which is simpler and has lower labor costs.

[0008] Preferably, the clamping cylinder is disposed on the lower die, the sliding assembly includes a sliding block disposed on one side of the clamping block, one end of the piston rod of the clamping cylinder is provided with a T-shaped block for engaging with the sliding block to connect the piston rod of the clamping cylinder and the sliding block, one end of the clamping block near the piston rod of the clamping cylinder is provided with a T-shaped groove for sliding engagement with the sliding block, the lower die includes a material support plate, the material support plate is disposed on the upper end face of the lower die, the material support plate is provided with a sliding groove for sliding engagement with the sliding block, when the sliding block slides into engagement with the sliding groove, the clamping block is attached to the upper end face of the material support plate.

[0009] By adopting the above technical solution, when it is necessary to fix the piston rod of the clamping cylinder to the sliding block to push the sliding block, the T-shaped block can be engaged with the T-shaped groove. After the T-shaped block is engaged with the T-shaped groove, the clamping cylinder can push the sliding block to slide in the sliding groove. When the sliding block slides in the sliding groove, the sliding block can drive the clamping block to slide on the material support plate, so that the clamping block moves towards the material and guides the movement of the clamping block. The clamping block is attached to the upper surface of the material support plate so that the clamping block can clamp and position the cylinder head gasket more accurately.

[0010] Preferably, a fixing block is provided on one side of the clamping block, the fixing block is fixedly connected to one side of the clamping block, and a first screw for adjusting the position of the clamping block is provided through the fixing block. One end of the first screw is fixedly connected to the clamping block, and the other end of the first screw is passed through the fixing seat and threadedly connected to the fixing seat.

[0011] By adopting the above technical solution, when it is necessary to adjust the position of the clamping block on the material support plate to adapt to different models of cylinder head gaskets, the first screw is driven to rotate. The rotation of the first screw causes the first screw to move in the direction of approaching or moving away from the material support plate. When the first screw moves, it will drive the clamping block to move synchronously, thereby causing the clamping block to move in the direction of approaching or moving away from the material support plate, thereby adjusting the position of the clamping block on the material support plate.

[0012] Preferably, the upper mold driving assembly includes a fixed frame and a lifting cylinder. The fixed frame is disposed on the top of the worktable and fixedly connected to the worktable. The lifting cylinder is disposed on the side of the fixed frame near the worktable. The piston rod of the lifting cylinder is connected to the upper punch. A positioning component for positioning the movement of the upper punch driven by the lifting cylinder is disposed between the driving end of the lifting cylinder and the upper punch.

[0013] By adopting the above technical solution, the fixing frame is used to fix the lifting cylinder to the worktable to lift the upper punch. When it is necessary to lift the upper punch relative to the lower die to apply pressure to the cylinder head gasket and cause plastic deformation, the lifting cylinder is driven. The piston rod of the lifting cylinder is pushed towards the lower die. The upper punch moves towards the lower die under the push of the piston rod until the upper punch and the lower die exert a squeezing effect on the cylinder head gasket, thus shaping the cylinder head gasket. The positioning component is used to position the movement of the upper punch driven by the lifting cylinder, making the shaping position of the cylinder head gasket more accurate.

[0014] Preferably, the positioning component includes a positioning rod disposed on the lower die, one end of the positioning rod passing through the lower die and the material support plate and located on the side of the material support plate closer to the upper punch, the upper punch having a positioning groove for engaging with the positioning rod, when the upper punch is raised and lowered to be close to the lower die by the upper die driving component, the positioning rod engages with the positioning groove.

[0015] By adopting the above technical solution, when the upper punch moves towards the lower die under the push of the piston rod until the upper punch is close to the lower die, the positioning rod engages with the positioning groove, so that the upper punch can make precise contact with the corresponding position of the lower die, thereby making the shaping position of the cylinder head gasket more accurate.

[0016] Preferably, the lower die is provided with a height-equalizing post for controlling the height of the material support plate. A first fixing plate is provided on one side of the lower die. The first fixing plate has a first through groove and a second through groove for the height-equalizing post to pass through. The first through groove and the second through groove are connected. The height-equalizing post includes a first sliding part, a second sliding part, and a second threaded part. The first sliding part passes through the first through groove and slides and engages with the first through groove. The second sliding part is located in the second through groove and slides and engages with the second through groove. The material support plate has a second threaded hole, and the second threaded part is threadedly connected to the second threaded hole.

[0017] By adopting the above technical solution, the equal-height column is used to adjust the height of the support plate to adapt to different die heights, ensuring that the support plate remains flush with dies of different heights and guaranteeing the punching effect. When it is necessary to adjust the height of the support plate, the first sliding part is controlled to slide within the first through groove. When the first sliding part slides within the first through groove, it will drive the second sliding part to slide within the second through groove. When the first and second sliding parts slide to the appropriate positions, the support plate can be fixed by threading the second threaded part with the second threaded hole.

[0018] Preferably, the upper punch is provided with a pressure plate, which is engaged with the upper punch. The upper punch is provided with a reset post for controlling the reset of the pressure plate. The reset post includes a limiting part and a guide part. The guide part is provided on one side of the limiting part. The upper punch is provided with a second fixing plate. The second fixing plate has a limiting groove for sliding engagement with the limiting part. The upper punch has a guide groove for sliding engagement with the guide part. The guide groove is connected to the limiting groove. The guide part has a first threaded part for threaded engagement with the pressure plate at one end near the pressure plate. The pressure plate has a first threaded hole. The first threaded part passes through the first threaded hole and is threadedly engaged with the first threaded part.

[0019] By adopting the above technical solution, the pressure plate is used to hold the material before the upper punch presses the cylinder head gasket to ensure the punching quality. The reset column is used to control the reset of the pressure plate. When the upper punch moves towards the lower die under the push of the piston rod until the upper punch is close to the lower die, the pressure plate contacts the cylinder head gasket to initially press it. At this time, the cylinder head gasket pushes the pressure plate. Under the push of the cylinder head gasket, the pressure plate pushes the guide part to slide away from the lower die in the guide groove, and the limiting part slides away from the lower die in the limiting groove, so that the pressure plate slides away from the lower die until the limiting part abuts against the inner wall of the limiting groove and the guide part abuts against the inner wall of the guide groove. The pressure plate further presses the cylinder head gasket. After pressing, the upper punch then punches the cylinder head gasket, making the punching position of the cylinder head gasket more accurate.

[0020] Preferably, the first fixing plate is provided with a spring for providing elastic support to the material support plate so as to reset the upper punch. The first fixing plate has a circular groove, one end of the spring is fixedly connected to the bottom wall of the circular groove, and the other end of the spring is fixedly connected to the material support plate.

[0021] By adopting the above technical solution, when the limiting part slides away from the lower die in the limiting groove under the push of the pressure plate, the limiting part compresses the spring in the direction away from the lower die. The spring contracts under the compression of the limiting part, and the spring contraction allows the limiting part to slide in the limiting groove. When the cylinder head gasket is shaped and the pressure plate moves up, the pressure plate no longer pushes the limiting part, and the limiting part no longer compresses the spring. The spring naturally extends and pushes the limiting part to slide closer to the lower die until the pressure plate is reset.

[0022] Preferably, the first fixing plate is provided with a cylinder seat for fixing the lifting cylinder, and a mounting plate is provided on one side of the cylinder seat. A second screw is passed through the mounting plate and is threadedly connected to the mounting plate. A lifting motor is provided at one end of the second screw near the first fixing plate for rotating the screw to raise and lower the cylinder seat. The lifting motor is fixedly connected to the first fixing plate.

[0023] By adopting the above technical solution, the mounting plate is used to fix the clamping cylinder to the first fixing plate and to be threadedly connected to the screw. The screw is used to adjust the position of the clamping cylinder so that the sliding block can change with the height of the material support plate, so that the clamping block can always abut against the surface of the material support plate to clamp the cylinder gasket. When it is necessary to adjust the position of the clamping cylinder, the rotating motor is driven. The rotating motor drives the second screw to rotate. The rotation of the second screw causes the cylinder seat to move in the vertical direction, thereby adjusting the height of the clamping cylinder in the vertical direction to adapt to the material support plate.

[0024] Preferably, the mounting plate is provided with a guide rod for guiding the lifting and lowering of the cylinder seat. The guide rod is arranged parallel to the second screw. One end of the guide rod is slidably engaged with the mounting plate, and the other end of the guide rod is fixedly connected to the first fixing plate.

[0025] By adopting the above technical solution, the guide rod is used to guide the displacement of the cylinder seat in the height direction. When the first screw rotates and causes the cylinder seat to displace in the height direction, the cylinder seat moves along the direction of the guide rod, thereby reducing the offset generated by the cylinder seat during displacement.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. When positioning and shaping the cylinder head gasket, place the gasket on the lower die, then drive the clamping cylinder. The clamping cylinder, when driven, drives the clamping assembly to clamp the gasket, adjusting it to a precise position. Once the gasket is in the correct position, drive the upper die drive assembly. This drives the upper punch towards the lower die until they are in contact. At this point, the upper punch... The cylinder head gasket exerts a squeezing action, causing it to undergo plastic deformation, thus producing the cylinder head gasket. The sliding component is used to slide the clamping block on the lower die, thereby adjusting the position of the clamping block on the lower die to clamp the cylinder head gasket. This application, by setting the clamping component, accurately positions the opening position of the cylinder head gasket. When the cylinder head gasket needs to be positioned for shaping, the clamping component is used to replace manual positioning of the cylinder head gasket, which is simpler and has lower labor costs. 2. When it is necessary to fix the piston rod of the clamping cylinder to the sliding block to push the sliding block, the T-shaped block can be engaged with the T-shaped groove. After the T-shaped block is engaged with the T-shaped groove, the clamping cylinder can push the sliding block to slide in the sliding groove. When the sliding block slides in the sliding groove, the sliding block can drive the clamping block to slide on the material support plate, so that the clamping block moves towards the material and guides the movement of the clamping block. The clamping block is attached to the upper surface of the material support plate so that the clamping block can more accurately clamp and position the cylinder head gasket. Attached Figure Description

[0027] Figure 1 This is an overall schematic diagram of this application; Figure 2 This is a structural schematic diagram illustrating the upper punch and the second fixing plate in this application; Figure 3 This is a structural schematic diagram illustrating the lower die and the first fixing plate in this application; Figure 4 This is a schematic diagram showing the connection relationship between the lower die and the support plate in this application; Figure 5 yes Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram illustrating the connection relationship between the reset post and the upper punch in this application; Figure 7 This is a schematic diagram illustrating the connection relationship between the contour column and the lower die in this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Worktable; 2. Upper punch; 3. Lower die; 4. First fixed plate; 5. Stop plate; 6. Receiving groove; 7. Second fixed plate; 8. Fixing frame; 9. Lifting cylinder; 10. Oil inlet column; 11. Positioning column; 12. Cylinder port column; 13. Oil inlet; 14. Positioning port; 15. Cylinder port hole; 16. Through groove; 17. Positioning rod; 18. Material support plate; 19. Positioning groove; 20. Clamping block; 21. Clamping groove; 22. Limiting block; 23. Fixed block; 24. Sliding block; 25. Sliding groove; 26. First screw; 27. Clamping cylinder 28. Cylinder; 29. ​​T-shaped block; 30. T-shaped groove; 31. Pressure plate; 32. Reset column; 33. Limiting part; 34. Guide part; 35. Limiting groove; 36. Guide groove; 37. First threaded part; 38. First screw hole; 39. Reset spring; 40. Equal height column; 41. First sliding part; 42. Second sliding part; 43. Second threaded part; 44. First through groove; 45. Second through groove; 46. Second screw hole; 47. Support spring; 48. Circular groove; 49. Cylinder seat; 50. Mounting plate; 51. Mounting space; 52. Second screw; 53. Guide rod. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0030] Reference Figure 1A stamping die for automotive cylinder head gaskets includes a template assembly for plastically deforming material to produce cylinder head gaskets and a worktable 1 for fixing the template assembly. The template assembly includes an upper punch 2 and a lower die 3. The upper punch 2, lower die 3, and worktable 1 are all rectangular parallelepipeds. The lower die 3 is fixedly connected to the worktable 1, and the upper punch 2 is vertically and vertically connected to the worktable 1, with the upper punch 2 positioned above the lower die 3. Specifically, a first fixing plate 4 is fixedly connected to the lower die 3 near the worktable 1 for connecting the lower die 3 to the worktable 1. The first fixing plate 4 is rectangular parallelepiped, and the area of ​​the top surface of the first fixing plate 4 is larger than the area of ​​the bottom surface of the lower die 3. The first fixing plate 4 and the lower die 3 are fixedly connected by bolts. A baffle plate 5 is fixedly connected to the side of the first fixed plate 4 away from the lower die 3 to prevent material from flying out after the material is shaped. The baffle plate 5 is set vertically and is fixedly connected to the worktable 1 by bolts, so that both the first fixed plate 4 and the lower die 3 are fixedly connected to the worktable 1. In this embodiment, there are two baffle plates 5. The two baffle plates 5 are fixedly connected to the first fixed plate 4 along the width direction of the first fixed plate 4, and a receiving groove 6 is formed between the two baffle plates 5 to receive the material that falls after the material is shaped. After the upper punch 2 and the lower die 3 have finished shaping the material placed between the upper punch 2 and the lower die 3 to produce the cylinder head gasket, the excess material is squeezed and falls into the receiving groove 6 to keep the working environment of the worktable 1 clean.

[0031] Reference Figure 1 A second fixing plate 7 is fixedly connected to the side of the upper punch 2 away from the lower die 3 for connecting the upper punch 2 to the worktable 1. Specifically, the second fixing plate 7 is rectangular in shape, and the area of ​​the bottom surface of the second fixing plate 7 is larger than the area of ​​the top surface of the upper punch 2. An upper die driving assembly is provided between the second fixing plate 7 and the worktable 1 for driving the upper punch 2 to move toward the lower die 3 to apply pressure to the material for processing. Specifically, the upper die driving assembly includes a fixing frame 8 fixedly connected to the top of the worktable 1 and a clamping cylinder 27 fixedly connected to the side of the fixing frame 8 near the second fixing plate 7. The fixing frame 8 is a frame with an L-shaped cross-section. The bottom side of the fixing frame 8 is fixedly connected to the worktable 1, and the top side of the fixing frame 8 is located above the second fixing plate 7. The lifting cylinder 9 is set vertically and is fixedly connected to the side of the fixed frame 8 near the second fixed plate 7. The piston rod of the lifting cylinder 9 is fixedly connected to the second fixed plate 7. When the lifting cylinder 9 is working, the piston rod of the lifting cylinder 9 pushes the second fixed plate 7 towards the direction of the lower die 3. After being pushed by the piston rod of the lifting cylinder 9, the second fixed plate 7 moves towards the lower die 3, and at the same time drives the upper punch 2 to move towards the lower die 3. This applies pressure to the material, causing the cylinder head gasket to undergo plastic deformation to produce the cylinder head gasket.

[0032] Reference Figure 2 and Figure 3 The upper punch 2 is fixedly connected to an oil inlet column 10 for shaping the oil inlet hole of the cylinder head gasket, a positioning column 11 for shaping the positioning hole of the cylinder head gasket, and a cylinder head column 12 for shaping the cylinder head of the cylinder head gasket. Specifically, the oil inlet column 10, the positioning column 11, and the cylinder head column 12 are all rectangular parallelepipeds, and are all arranged vertically. The oil inlet column 10, the positioning column 11, and the cylinder head column 12 are all fixedly connected to the surface of the upper punch 2 near the lower die 3. The lower die 3 has an oil inlet 13 for cooperating with the oil inlet column 10 to shape the oil inlet hole, a positioning port 14 for cooperating with the positioning column 11 to shape the positioning hole, and a cylinder port hole 15 for cooperating with the cylinder port column 12 to shape the cylinder port. The oil inlet 13, the positioning hole, and the cylinder port hole 15 all penetrate through both sides of the lower die 3. The first fixed plate 4 has a through groove 16 that penetrates through the surface of the first fixed plate 4 so that after the material is shaped and the cylinder head gasket is produced, the excess material can fall into the receiving groove 6 through the through groove 16.

[0033] Reference Figure 4 and Figure 5 A positioning component is provided between the upper punch 2 and the lower die 3 to position the movement of the upper punch 2 toward the lower die 3. Specifically, the positioning component includes a positioning rod 17 fixedly connected to the lower die 3. A material support plate 18 for placing materials is engaged with the outer side of the lower die 3. One end of the positioning post 11 passes through the lower die 3 and the material support plate 18 and is located on the side of the material support plate 18 closer to the upper punch 2. The upper punch 2 has a positioning groove 19 for engaging with the positioning rod 17. When the upper punch 2 moves close to the lower die 3 through the upper die drive component, the positioning rod 17 engages with the positioning groove 19.

[0034] Reference Figure 4 and Figure 5 The first fixing plate 4 is provided with a clamping assembly for fixing the cylinder head gasket. Specifically, the clamping assembly includes a clamping block 20 slidably connected to the material support plate 18. The clamping block 20 is rectangular in shape, and a clamping groove 21 for material to pass through is opened on the side of the clamping block 20 near the first fixing plate 4. When the clamping block 20 clamps and positions the material, the clamping groove 21 slides and engages with the material. The clamping block 20 includes a limiting block 22 for limiting the sliding of the material in the clamping groove 21, thereby positioning the material. The limiting block 22 is located on one side of the clamping groove 21. When the material slides in the clamping groove 21 until it abuts against the limiting block 22, the material cannot move further. In this embodiment, the number of clamping blocks 20 is set to six, of which four clamping blocks 20 are distributed in pairs along the length direction of the material support plate 18, and two clamping blocks 20 are distributed on both sides of the length direction of the material support plate 18.

[0035] Reference Figure 4 and Figure 5 A guide component is provided on one side of the clamping block 20 to guide the sliding of the clamping block 20 on the material support plate 18. Specifically, the guide component includes a fixed block 23 fixedly connected to one side of the clamping block 20. The fixed block 23 is arched. A sliding block 24 is fixedly connected to the side of the fixed block 23 near the material support plate 18. The material support plate 18 has a sliding groove 25 for sliding cooperation with the sliding block 24. One end of the sliding block 24 passes through the sliding groove 25 and slides in cooperation with the sliding groove 25. When the sliding block 24 slides in the sliding groove 25, the sliding block 24 can drive the clamping block 20 to slide on the material support plate 18, so that the clamping block 20 moves toward the material and guides the movement of the clamping block 20. The clamping block 20 is moved until the material abuts against the limiting block 22 to position the material. When the sliding block 24 slides in the sliding groove 25, the lower end face of the clamping block 20 abuts against the surface of the material support plate 18. In this embodiment, the number of guide components is set to six groups, and the six groups of guide components are respectively arranged on the side of the six clamping blocks 20 away from the lower die 3.

[0036] Reference Figure 4 and Figure 5 The fixing block 23 is provided with a first screw 26 for adjusting the position of the clamping block 20. One end of the first screw 26 is fixedly connected to the side of the clamping block 20 away from the lower die 3, and the other end of the first screw 26 passes through the fixing seat and is threadedly connected to the fixing seat. The other end of the first screw 26 extends out of the fixing seat and is fixedly connected to a handle for convenient rotation of the first screw 26. In this embodiment, the number of first screws 26 is set to six, and the six first screws 26 are respectively fixedly connected to the six clamping blocks 20 on the side away from the lower die 3.

[0037] Reference Figure 4 and Figure 5 A clamping cylinder 27 for driving the sliding block 24 to slide within the sliding groove 25 is fixedly mounted on the first fixed plate 4. The clamping cylinder 27 is fixedly connected to the side of the sliding block 24 away from the lower die 3. One end of the piston rod of the clamping cylinder 27 is detachably connected to one side of the sliding block 24. Specifically, one end of the piston rod of the clamping cylinder 27 is fixedly connected to a T-shaped block 28 for connecting the piston rod of the clamping cylinder 27 and the sliding block 24. The sliding block 24 has a T-shaped groove 29 for slidingly engaging with the T-shaped block 28. The T-shaped groove 29 is opened vertically, and the T-shaped block 28 slides into the T-shaped groove 29, thereby making the piston rod of the clamping cylinder 27 detachably connected to the sliding block 24. Thus, the clamping block 20 can be moved toward the material by controlling the clamping cylinder 27. In this embodiment, the number of clamping cylinders 27 is set to six, and the six clamping cylinders 27 are respectively fixedly connected to the six sides of the sliding blocks 24 away from the lower die 3.

[0038] Reference Figure 4 and Figure 5 The upper punch 2 is fixedly connected to a pressure plate 30 for holding the material in place to ensure the quality of the punching. The pressure plate 30 is engaged with the upper punch 2. The upper punch 2 is provided with a reset assembly for controlling the reset of the pressure plate 30. Specifically, the reset assembly includes a reset post 31 fixedly connected to the upper punch 2. The reset post 31 includes a limiting part 32 and a guide part 33. Both the limiting part 32 and the guide part 33 are cylindrical, and the cross-sectional radius of the limiting part 32 is larger than that of the guide part 33. The guide part 33 is fixedly connected to the limiting part 32 on the side closer to the upper punch 2. The second fixed plate 7 has a limiting groove 34 for sliding engagement with the limiting part 32. The limiting part 32 is located in the limiting groove 34 and slides with the limiting groove 34. The upper punch 2 has a guide groove 35 for sliding engagement with the guide portion 33. The guide groove 35 is connected to the limiting groove 34. The guide portion 33 is located within the guide groove 35 and slides within it. A first threaded portion 36 is fixedly connected to one end of the guide portion 33 near the pressure plate 30 for threaded engagement with the pressure plate 30. The pressure plate 30 has a first threaded hole 37, and the first threaded portion 36 passes through the first threaded hole 37 and is threadedly engaged with it. In this embodiment, the number of reset posts 31 is set to several, and these reset posts 31 are evenly distributed on the upper punch 2.

[0039] Reference Figure 6 and Figure 7 A return spring 38 is fixedly connected within the limiting groove 34 to allow the limiting part 32 to slide within the limiting groove 34, thereby resetting the pressure plate 30. One end of the return spring 38 is fixedly connected to the groove wall of the limiting groove 34, and the other end is fixedly connected to one side of the limiting part 32. When pressure needs to be applied to the material, the upper punch 2 moves toward the lower die 3. When the upper punch 2 presses against the lower die 3, the lower die 3 exerts a pressing effect on the pressure plate 30, which in turn presses against the return spring 38. The return spring 38 contracts, the limiting part 32 slides within the limiting groove 34, and the pressure plate 30 moves upward. After shaping is complete, the upper punch 2 moves upward, and the upper punch 2 no longer presses against the lower die 3. The return spring 38 returns to its natural state, thereby resetting the pressure plate 30.

[0040] Reference Figure 6 and Figure 7The lower die 3 is fixedly connected to a height equalizing column 39 for controlling the height of the material support plate 18 to control the height of the lower die 3. The height equalizing column 39 is arranged vertically and includes a first sliding part 40, a second sliding part 41 and a second threaded part 42. The first sliding part 40 and the second sliding part 41 are both cylindrical, and the cross-sectional radius of the first sliding part 40 is larger than the cross-sectional radius of the second sliding part 41. The second sliding part 41 is fixedly connected to the side of the first sliding part 40 near the lower die 3, and the second threaded part 42 is fixedly connected to the side of the second sliding part 41 near the lower die 3. The first fixed plate 4 has a first through groove 43 for the first sliding part 40 to pass through, and a second through groove 44 for the second sliding part 41 to pass through. The first through groove 43 is located on the side of the second through groove 44 near the lower die 3, and the first through groove 43 and the second through groove 44 are connected. The first sliding part 40 passes through the first through groove 43 and slides in cooperation with the first through groove 43, and the second sliding part 41 passes through the second through groove 44 and slides in cooperation with the second through groove 44. The material support plate 18 has a second screw hole 45 for threaded engagement with the second threaded part 42. The second screw hole 45 penetrates the surface of the material support plate 18, and one end of the second threaded part 42 passes through the second screw hole 45 and is threaded in cooperation with the second screw hole 45. Thus, when the height of the support plate 18 needs to be adjusted, the first sliding part 40 is controlled to slide within the first through groove 43. As the first sliding part 40 slides within the first through groove 43, it drives the second sliding part 41 to slide within the second through groove 44. When the first sliding part 40 and the second sliding part 41 slide to a suitable position, the second threaded part 42 is threaded into the second threaded hole 45 to fix the support plate 18. In this embodiment, the number of equal-height columns 39 is set to four, and the four equal-height columns 39 are evenly distributed along the length direction of the first fixing plate 4.

[0041] Reference Figure 6 and Figure 7 The lower die 3 is fixedly connected to a support spring 46 for providing elastic support to the material support plate 18 so as to reset the upper punch 2. Specifically, the first fixed plate 4 has a circular groove 47, the support spring 46 passes through the circular groove 47, and one end of the support spring 46 is fixedly connected to the bottom wall of the circular groove 47, and the other end of the support spring 46 is fixedly connected to the material support plate 18. Thus, when the material is shaped and the upper punch 2 moves upward, the support spring 46 is no longer squeezed by the upper punch 2, and gradually returns to its natural state, thereby facilitating the reset of the upper punch 2.

[0042] Reference Figure 4 and Figure 5The first fixing plate 4 is fixedly connected to a cylinder seat 48 for fixing the clamping cylinder 27. The cylinder seat 48 is fixedly connected to the side of the clamping cylinder 27 away from the lower die 3, and the clamping cylinder 27 is fixedly connected to the cylinder seat 48. The cylinder seat 48 includes two oppositely arranged mounting plates 49. The two mounting plates 49 are respectively fixedly connected to both sides of the clamping cylinder 27. Both mounting plates 49 are fixedly connected to the first fixing plate 4. An installation space 50 for installing the clamping cylinder 27 is formed between the two mounting plates 49. The clamping cylinder 27 is fixedly connected to one side of the connecting plate and is located within the installation space 50. A second screw 51 for raising and lowering the cylinder seat 48 is provided on the mounting plate 49 located on one side of the clamping cylinder 27. The second screw 51 is arranged vertically and passes through the mounting plate 49 and is threaded to the mounting plate 49. A rotary motor for driving the screw to rotate so that the cylinder seat 48 can be raised and lowered is fixedly connected to one end of the second screw 51 near the first fixed plate 4. The other side of the rotary motor is fixedly connected to the first fixed plate 4.

[0043] Reference Figure 4 and Figure 5 The cylinder seat 48 is provided with a guide rod 52 for guiding the lifting and lowering of the cylinder seat 48. The guide rod 52 is cylindrical and parallel to the screw. One end of the guide rod 52 passes through the mounting plate 49 on the other side of the clamping cylinder 27 and slides with the mounting plate 49. The other end of the guide rod 52 is fixedly connected to the first fixing plate 4.

[0044] The implementation principle of this application is as follows: When the cylinder head gasket needs to be positioned and shaped, the cylinder head gasket is first placed on the lower die 3, and then the clamping cylinder 27 is driven. After the clamping cylinder 27 is driven, it can push the sliding block 24 to slide in the sliding groove 25. When the sliding block 24 slides in the sliding groove 25, the sliding block 24 can drive the clamping block 20 to slide on the material support plate 18, so that the clamping block 20 moves towards the material and guides the movement of the clamping block 20, so that the cylinder head gasket is adjusted to the precise position by the clamping assembly and clamped. When the cylinder head gasket is adjusted to the precise position by the clamping assembly, the lifting cylinder 9 is driven. After the lifting cylinder 9 is driven, it drives the upper punch 2 to move towards the lower die 3 until the upper punch 2 and the lower die 3 are aligned. When the upper punch 2 approaches the lower die 3, the pressure plate 30 contacts the cylinder head gasket to initially press it down. At this time, the cylinder head gasket pushes the pressure plate 30. Under the push of the cylinder head gasket, the pressure plate 30 pushes the guide part 33 to slide away from the lower die 3 in the guide groove 35. The limiting part 32 slides away from the lower die 3 in the limiting groove 34, so that the pressure plate 30 slides away from the lower die 3 until the limiting part 32 abuts against the inner wall of the limiting groove 34 and the guide part 33 abuts against the inner wall of the guide groove 35. The pressure plate 30 further presses down on the cylinder head gasket. After pressing, the upper punch 2 punches the cylinder head gasket, making the punching position of the cylinder head gasket more accurate. This application uses a clamping block 20, a sliding block 24, and a pressure plate 30 to accurately position the opening of the cylinder head gasket. When the cylinder head gasket needs to be positioned for shaping, the clamping block 20 is used to replace manual positioning of the cylinder head gasket, which is simpler and has lower labor costs.

[0045] This application can simultaneously adapt to different models of cylinder head gaskets and different heights of lower die 3. When it is necessary to adjust the position of the clamping block 20 on the support plate 18 to adapt to different models of cylinder head gaskets, the first screw 26 is driven to rotate. The rotation of the first screw 26 causes the first screw 26 to move towards or away from the support plate 18. When the first screw 26 moves, it will drive the clamping block 20 to move synchronously, thereby causing the clamping block 20 to move towards or away from the support plate 18, thus adjusting the position of the clamping block 20 on the support plate 18. When it is necessary to adjust the height of the support plate 18 to adapt to different heights of lower die 3, the first sliding part 40 is controlled to slide in the first through groove 43. When the first sliding part 40 slides in the first through groove 43, it will drive the second sliding part 41 to slide in the second through groove 44. When the first sliding part 40 and the second sliding part 41 slide to the appropriate position, the second threaded part 42 and the second threaded hole 45 are threaded together to fix the support plate 18.

[0046] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stamping die for automotive seat cushions, comprising a template assembly for molding and a worktable (1) for fixing the template assembly, characterized in that: The template assembly includes an upper punch (2) and a lower die (3). The lower die (3) is disposed on the worktable (1). An upper die driving assembly for driving the upper punch (2) to move toward the lower die (3) is disposed on the side of the upper punch (2) away from the lower die (3). The upper die driving assembly is disposed on the worktable (1). A clamping assembly for fixing the cylinder head gasket is disposed on one side of the lower die (3). The clamping assembly includes four clamping blocks (20) symmetrically distributed in a cross shape on the top of the lower die (3) and movably connected to the lower die (3), and a clamping cylinder (27) for driving the clamping blocks (20) to move toward the cylinder head gasket. The clamping blocks (20) are slidably engaged with the lower die (3) through a sliding assembly.

2. The automotive seat stamping die according to claim 1, characterized in that: The clamping cylinder (27) is disposed on the lower die (3). The sliding assembly includes a sliding block (24) disposed on one side of the clamping block (20). One end of the piston rod of the clamping cylinder (27) is provided with a T-shaped block (28) for engaging with the sliding block (24) to connect the piston rod of the clamping cylinder (27) and the sliding block (24). The clamping block (20) has a useful opening at one end near the piston rod of the clamping cylinder (27). The lower die (3) includes a material support plate (18) for sliding engagement with the sliding block (24) in a T-shaped groove. The material support plate (18) is disposed on the upper end face of the lower die (3). The material support plate (18) has a sliding groove (25) for sliding engagement with the sliding block (24). When the sliding block (24) and the sliding groove (25) slide engagement, the clamping block (20) is attached to the upper end face of the material support plate (18).

3. The automotive seat stamping die according to claim 1, characterized in that: A fixing block (23) is provided on one side of the clamping block (20). The fixing block (23) is fixedly connected to one side of the clamping block (20). A first screw (26) for adjusting the position of the clamping block (20) is provided through the fixing block (23). One end of the first screw (26) is fixedly connected to the clamping block (20), and the other end of the first screw (26) is passed through the fixing seat and threadedly connected to the fixing seat.

4. The automotive seat stamping die according to claim 1, characterized in that: The upper mold driving assembly includes a fixed frame (8) and a lifting cylinder (9). The fixed frame (8) is located on the top of the worktable (1) and is fixedly connected to the worktable (1). The lifting cylinder (9) is located on the side of the fixed frame (8) close to the worktable (1). The piston rod of the lifting cylinder (9) is connected to the upper punch (2). A positioning component is provided between the piston rod of the lifting cylinder (9) and the upper punch (2) for positioning the movement of the upper punch (2) driven by the lifting cylinder (9).

5. The automotive seat stamping die according to claim 4, characterized in that: The positioning component includes a positioning rod (17) disposed on the lower die (3). One end of the positioning post (11) passes through the lower die (3) and the material support plate (18) respectively and is located on the side of the material support plate near the upper punch (2). The upper punch (2) is provided with a positioning groove (19) for engaging with the positioning rod (17). When the upper punch (2) is raised and lowered to be close to the lower die (3) by the upper die driving component, the positioning rod (17) engages with the positioning groove (19).

6. The automotive seat stamping die according to claim 1, characterized in that: The lower die (3) is provided with a height equalization column (39) for controlling the height of the material support plate (18). A first fixing plate (4) is provided on one side of the lower die (3). The first fixing plate (4) has a first through groove (43) and a second through groove (44) for the height equalization column (39) to pass through. The first through groove (43) and the second through groove (44) are connected. The height equalization column (39) includes a first sliding part (40), a second sliding part (41) and a second threaded part (42). The first sliding part (40) passes through the first through groove (43) and slides and engages with the first through groove (43). The second sliding part (41) is located in the second through groove (44) and slides and engages with the second through groove (44). The material support plate (18) has a second screw hole (45). The second threaded part (42) is threadedly connected to the second screw hole (45).

7. The automotive seat stamping die according to claim 1, characterized in that: The upper punch (2) is provided with a pressure plate (30), which engages with the upper punch (2). The upper punch (2) is provided with a reset post (31) for controlling the reset of the pressure plate (30). The reset post (31) includes a limiting part (32) and a guide part (33). The guide part (33) is located on one side of the limiting part (32). The second fixing plate (7) is provided with a limiting groove (34) for sliding engagement with the limiting part (32). The upper punch (2) is provided with a guide groove (35) for sliding cooperation with the guide part (33). The guide groove (35) is connected to the limiting groove (34). The guide part (33) is provided with a first threaded part (36) for threaded cooperation with the pressure plate (30) at one end near the pressure plate (30). The pressure plate (30) is provided with a first threaded hole (37). The first threaded part (36) passes through the first threaded hole (37) and is threadedly engaged with the first threaded part (36).

8. The automotive seat stamping die according to claim 6, characterized in that: The first fixing plate (4) is provided with a spring for providing elastic support to the material support plate (18) so as to reset the upper punch (2). The first fixing plate (4) has a circular groove (47). One end of the spring is fixedly connected to the bottom wall of the circular groove (47), and the other end of the spring is fixedly connected to the material support plate (18).

9. The automotive seat stamping die according to claim 6, characterized in that: The first fixing plate (4) is provided with a cylinder seat (48) for fixing the lifting cylinder (9). A mounting plate (49) is provided on one side of the cylinder seat (48). A second screw (51) is passed through the mounting plate (49). The second screw (51) is threadedly connected to the mounting plate (49). A lifting motor is provided at one end of the second screw (51) near the first fixing plate (4) for rotating the screw to make the cylinder seat (48) rise and fall. The lifting motor is fixedly connected to the first fixing plate (4).

10. The automotive seat stamping die according to claim 9, characterized in that: The mounting plate (49) is provided with a guide rod (52) for guiding the lifting and lowering of the cylinder seat (48). The guide rod (52) is arranged parallel to the second screw (51). One end of the guide rod (52) is slidably engaged with the mounting plate (49), and the other end of the guide rod (52) is fixedly connected to the first fixing plate (4).

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