Stamping device for the tail of a motorcycle exhaust pipe

Abstract

The application provides a stamping device for a motorcycle exhaust pipe tail cover and belongs to the technical field of stamping equipment. The stamping device comprises a workbench, a supporting plate and a stamping mechanism. The workbench is provided with a feeding mechanism. The supporting plate is fixed on the workbench through a stand column. The stamping mechanism comprises a lifting flat plate, a forming upper die and a punching upper die. Guide columns are respectively fixed on the two sides of the lifting flat plate. Guide sleeves are fixed on the supporting plate and sleeved outside the guide columns. The supporting plate is provided with a driving mechanism for driving the lifting flat plate to move up and down. The feeding mechanism comprises a sliding groove in the shape of a ring opened on the workbench, two sliding positioning assemblies sliding along the sliding groove and a cylinder assembly. A square fence is fixed on the workbench. The sliding groove is located in the fence. The cylinder assembly is fixed on the workbench outside the fence and drives the sliding positioning assemblies to move unidirectionally and circularly along the sliding groove. The stamping device integrates two processes of forming and punching. The workpiece is firmly positioned. The work position is smoothly and stably switched. The processing efficiency and product processing precision are effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of stamping equipment technology, and relates to a stamping device for a motorcycle exhaust pipe tail cover. Background Technology

[0002] Motorcycle exhaust pipe covers are important protective and decorative components at the end of the exhaust pipe. They come in various shapes, with large extruded holes for the exhaust pipe to pass through and smaller punched holes for bolts to pass through and connect to the exhaust pipe reinforcement cover. The production process requires multiple processing steps, including outward stamping and end-face punching. Currently, traditional stamping equipment mostly adopts a single-station operation mode, with workpiece loading and unloading relying on manual labor, resulting in low efficiency and safety hazards. Furthermore, conventional equipment lacks precise positioning and continuous feeding structures, making workpieces prone to shifting during stamping and punching, leading to dimensional deviations and a high defect rate.

[0003] If a rotary table mechanism is used for feeding and stamping, under prolonged and high stamping pressure, the rotary table is prone to displacement and tilting, resulting in lower stamping accuracy. Therefore, rotary table mechanisms are rarely used in stamping processes. Existing continuous stamping equipment generally suffers from problems such as unsmooth station switching, poor workpiece positioning stability, and inconvenient waste removal, making it difficult to meet the large-scale production needs of high-precision motorcycle exhaust pipe covers. To address the shortcomings of the existing technology, this invention proposes a stamping device for motorcycle exhaust pipe covers that can continuously feed and precisely position materials. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a stamping device for motorcycle exhaust pipe tail covers, which integrates molding and punching processes, ensuring firm workpiece positioning and smooth and stable switching between workstations, thereby effectively improving processing efficiency and product processing accuracy.

[0005] The objective of this invention can be achieved through the following technical solution: a stamping device for a motorcycle exhaust pipe tail cover, comprising a worktable, a support plate, and a stamping mechanism. A feeding mechanism is provided on the worktable. The support plate is fixed to the worktable by columns. The stamping mechanism includes a lifting plate, a forming upper die, and a punching upper die. Guide columns are fixed on both sides of the lifting plate. A guide sleeve fitted on the outside of the guide columns is fixed on the support plate. A driving mechanism for driving the lifting plate to move up and down is provided on the support plate. The feeding mechanism includes a ring-shaped slide groove on the worktable, two sliding positioning components that slide along the slide groove, and a cylinder assembly. A square enclosure is fixed on the worktable. The slide groove is located inside the enclosure. The cylinder assembly is fixed on the worktable outside the enclosure and drives the sliding positioning components to move unidirectionally in a ring along the slide groove.

[0006] The drive mechanism drives the lifting plate to descend, and the sliding positioning component is pushed by the cylinder component to move along the slide groove to the forming station and the punching station in sequence. Forming is performed first, and then the plate is transferred to the punching station for punching.

[0007] Furthermore, the sliding positioning assembly includes a slide block and a lower mold. The lower mold is fixed on the slide block. The bottom of the slide block has a disc-shaped guide part embedded in a sliding groove. The lower mold has a frustum-shaped forming part. A forming hole groove is opened in the center of the forming part. A positioning rod protruding upward is provided at the bottom of the forming hole groove. The positioning rod is higher than the forming part. Several punches are also opened at the top of the forming part. The punches are equidistantly distributed circumferentially around the forming hole groove.

[0008] Furthermore, the slide block is provided with a first discharge hole aligned with the punching hole, and the slide groove is provided with a second discharge hole. After the sliding positioning component moves to the punching station, the first discharge hole and the second discharge hole are aligned.

[0009] After the holes are punched, the round waste pieces fall from the first discharge hole and the second discharge hole into the waste hopper below the workbench.

[0010] Furthermore, the cylinder assembly includes a front cylinder, a left cylinder, and a right cylinder, which are located on the front, left, and right sides of the enclosure, respectively. Rubber blocks are fixed to the front ends of the piston rods of the left and right cylinders. A synchronization plate is fixed to the front end of the front cylinder, and two parallel synchronization rods are fixed to the front end of the synchronization plate. An adsorption magnet for attracting the sliding positioning assembly is fixed to the front end of the synchronization rods. A square hole for the adsorption magnet to pass through is opened at the front end of the enclosure, and two positioning magnets are fixed to the rear end of the enclosure. The two positioning magnets correspond to the forming station and the punching station, respectively. The attraction force of the adsorption magnet is greater than that of the positioning magnet.

[0011] The rubber block is used to protect the sliding positioning component and prevent the extension rods of the left and right cylinders from squeezing the side of the sliding positioning component and causing damage to the rack.

[0012] Furthermore, the left and right cylinders are arranged alternately, and the outer wall of the sliding positioning component fits against the inner wall of the enclosure when sliding.

[0013] Furthermore, the slide groove is square and annular, with a raised guide plate at the center. A vertical shaft that passes through the worktable is rotatably connected to the guide plate. A guide gear is fixed at the upper end of the shaft. A rack is provided around the lower mold. During sliding, the rack meshes with the guide gear, causing the guide gear to rotate. A ratchet is fixed at the lower end of the shaft. A pawl is rotatably connected to the lower end of the worktable. A baffle is fixed to the lower end of the worktable. A tension spring is connected between the baffle and the tail end of the pawl. Under the action of the tension spring, the pawl head engages with the ratchet, allowing the ratchet to rotate only in one direction.

[0014] The chute is a square ring shape, with its four corners corresponding to the loading station, forming station, punching station, and unloading station, respectively. Two sliding positioning components are located at opposite corners of the chute. The piston rod of the front cylinder pushes the synchronous plate forward, and the left synchronous rod pushes the sliding positioning component on the loading station to the forming station. At this time, the other sliding positioning component is on the punching station, having just completed punching. Because the ratchet rotates clockwise in one direction only, it is locked by the pawl in the opposite direction, so the sliding positioning component cannot move in the reverse direction. The right synchronous rod contacts the sliding positioning component. At this time, the piston rod of the front cylinder retracts, and the synchronous plate moves backward. Because the guide gear cannot rotate counterclockwise, the sliding positioning component on the forming station cannot retract. Therefore, the left magnetic magnet separates from the sliding positioning component. After separation, the positioning magnet will attract the sliding positioning component back, so that the sliding positioning component fits against the inner wall of the enclosure, achieving precise positioning. The magnetic magnet on the right moves the sliding positioning component of the punching station to the unloading station. During this process, the inner rack and pinion guide gear engages; because the guide gear rotates clockwise, it does not affect the movement of the sliding positioning component to the unloading station. The synchronizing rod, carrying the magnetic magnet, completely retracts from the enclosure, while the sliding positioning component remains inside due to the enclosure's obstruction. At this point, the lifting plate can be lowered for forming operations, and workers can retrieve the product from the unloading station. After completion, the left cylinder pushes the sliding positioning component of the forming station towards the punching station, and the right cylinder pushes the sliding positioning component of the unloading station towards the loading station. At the loading station, the worker places the pre-punched sheet onto the positioning rod. This cycle repeats, ensuring that workers' hands do not need to be inside the forming and punching stations during operation, improving safety.

[0015] Furthermore, the upper forming mold includes an upper mold head, the upper end of which is fixed to the lifting plate, and the lower end of the upper mold head has a forming groove that cooperates with the forming part of the lower mold. The center of the forming groove has a protruding pressing cylinder that can be inserted into the forming hole groove, and the center of the pressing cylinder has a clearance hole for the insertion of the positioning rod.

[0016] During the molding process, the upper mold head and the lower mold press against each other, pressing the sheet into the shape of a motorcycle exhaust pipe tail cover.

[0017] Furthermore, the upper punching die includes a punching connecting seat fixed to the lifting plate, a limiting sleeve, a clamping cylinder, a clamping spring, a mounting template, and a punch. The punch is embedded in the mounting plate, the mounting plate is fixed to the lower end of the punching connecting seat, the limiting sleeve is fixedly sleeved on the upper end of the punching connecting seat, the clamping spring and the clamping cylinder are sleeved on the punching connecting seat, the upper end of the clamping spring abuts against the upper end of the punching connecting seat, the lower end of the clamping spring abuts against the upper end of the clamping cylinder, and the upper end of the clamping cylinder has a protruding stop edge that abuts against the lower end of the limiting sleeve.

[0018] During the punching operation, the clamping cylinder contacts the material sheet, firmly pressing the material sheet onto the lower die. As the punching connecting seat continues to descend, the clamping spring is compressed, and the clamping cylinder moves upward relative to the limiting sleeve. The punch and the punching hole cooperate to complete the punching operation.

[0019] Furthermore, the drive mechanism includes a mounting box fixed on the support plate, a motor, a reducer, a drive gear, a rocker arm, a lifting sliding member, a guide plate, and a connecting plate. The motor and reducer are fixed on the mounting box. The drive gear is rotatably connected inside the mounting box and powered by the reducer. The upper end of the rocker arm is eccentrically hinged to the drive gear, and the lower end of the rocker arm is hinged to the lifting sliding member. The side of the lifting sliding member is embedded in the guide plate and moves up and down along the guide plate. The lower end of the lifting sliding member is fixed to the lifting plate through the connecting plate.

[0020] The motor drives the drive gear to rotate through the reducer, and the rocker arm drives the lifting sliding component to slide up and down along the guide plate, finally driving the lifting plate to move up and down.

[0021] Compared with existing technologies, the stamping device for the exhaust pipe tail cover of this motorcycle has the following advantages: 1. This invention adopts a square annular chute and a unidirectional annular feeding structure, with two sets of sliding positioning components operating in a cycle to achieve integrated processing of workpiece loading, forming, punching, and unloading, greatly improving production efficiency, reducing manual intervention, and allowing loading and unloading to be replaced by a robotic arm, thus achieving fully automated production.

[0022] 2. Using only one front cylinder, in conjunction with an adsorption magnet, the sliding positioning component can perform both pushing forward and pulling back actions, saving space and equipment.

[0023] 3. A positioning magnet is fixed at the rear end of the fence, which can pull the offset sliding positioning component back to fit the fence, thereby improving the positioning accuracy of the sliding positioning component.

[0024] 4. A one-way limiting mechanism consisting of ratchet and pawl is set up, which, combined with the side wall limiting of the enclosure, ensures that the sliding positioning component can only move in one direction, the workstation switching is orderly, and the equipment operation is highly stable.

[0025] 5. Compared to rotary table feeding, the annular chute saves more space and provides more precise positioning. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the stamping device for the exhaust pipe tail cover of this motorcycle.

[0027] Figure 2 This is a cross-sectional view of the stamping mechanism.

[0028] Figure 3 This is a top view of the workbench.

[0029] Figure 4This is a schematic diagram of the cylinder assembly.

[0030] Figure 5 This is a bottom view of the workbench.

[0031] Figure 6 This is a schematic diagram of the sliding positioning component.

[0032] Figure 7 This is a schematic diagram of the slide block.

[0033] Figure 8 This is a schematic diagram of the drive mechanism.

[0034] Figure 9 This is a picture of the finished product of a motorcycle exhaust pipe cover.

[0035] In the diagram, 1. Workbench; 2. Support plate; 3. Column; 4. Lifting plate; 5. Guide column; 6. Guide sleeve; 7. Upper forming die; 8. Upper punching die; 9. Drive mechanism; 10. Slide groove; 11. Sliding positioning assembly; 12. Cylinder assembly; 13. Enclosure; 14. Slide block; 15. Lower die; 16. Guide slide; 17. Forming part; 18. Forming hole groove; 19. Positioning rod; 20. Punch; 21. First discharge hole; 22. Second discharge hole; 23. Front cylinder; 24. Left cylinder; 25. Right cylinder; 26. Rubber block; 27. Synchronizing plate; 28. Synchronizing rod; 29. ​​Adsorption magnet; 30. Square hole; 31. Positioning magnet; 32. Guide plate; 33. Rotating shaft; 34. Guide gear; 35. Rack; 36. Ratchet; 37. Pawl; 38. Baffle; 39. Extension spring; 40. Upper die head; 41. Forming groove; 42. Pressing cylinder; 43. Clearance hole; 44. Punch connecting seat; 45. Limiting sleeve; 46. Pressing cylinder; 47. Pressing spring; 48. Mounting template; 49. Punch; 50. Edge retainer; 51. Mounting box; 52. Motor; 53. Reducer; 54. Drive gear; 55. Rocker arm; 56. Lifting sliding component; 57. Guide plate; 58. Connecting plate. Detailed Implementation

[0036] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0037] like Figure 9 The image shows the finished exhaust pipe cover of this motorcycle after molding and punching. The small holes are for bolts to pass through and connect to the exhaust pipe reinforcement cover. (See image for details.) Figure 1 , Figure 2As shown, this motorcycle exhaust pipe tail cover includes a workbench 1, a support plate 2, and a stamping mechanism. The workbench 1 is equipped with a feeding mechanism. The support plate 2 is fixed to the workbench 1 by a column 3. The stamping mechanism includes a lifting plate 4, a forming upper die 7, and a punching upper die 8. Guide columns 5 are fixed on both sides of the lifting plate 4. A guide sleeve 6 fitted on the outside of the guide column 5 is fixed on the support plate 2. The support plate 2 is equipped with a drive mechanism 9 that drives the lifting plate 4 to move up and down.

[0038] like Figure 2 As shown, the upper forming mold 7 includes an upper mold head 40. The upper end of the upper mold head 40 is fixed to the lifting plate 4. The lower end of the upper mold head 40 has a forming groove 41 that cooperates with the forming part 17 of the lower mold 15. The center of the forming groove 41 has a protruding pressing cylinder 42 that can be inserted into the forming hole groove 18. The center of the pressing cylinder 42 has a clearance hole 43 for the positioning rod 19 to be inserted.

[0039] During the molding process, the upper mold head 40 and the lower mold 15 press against each other to shape the sheet into the shape of a motorcycle exhaust pipe tail cover.

[0040] like Figure 2 As shown, the upper punching die 8 includes a punching connecting seat 44, a limiting sleeve 45, a pressing cylinder 46, a pressing spring 47, an mounting template 48, and a punch 49, which are fixed to the lifting plate 4. The punch 49 is embedded in the mounting template 48, which is fixed to the lower end of the punching connecting seat 44. The limiting sleeve 45 is fixedly sleeved on the upper end of the punching connecting seat 44. The pressing spring 47 and the pressing cylinder 46 are sleeved on the punching connecting seat 44. The upper end of the pressing spring 47 abuts against the upper end of the punching connecting seat 44, and the lower end of the pressing spring 47 abuts against the upper end of the pressing cylinder 46. The upper end of the pressing cylinder 46 has a protruding flange 50 that abuts against the lower end of the limiting sleeve 45.

[0041] During the punching operation, the clamping cylinder 46 contacts the sheet material, firmly pressing it onto the lower die 15. As the punching connecting seat 44 continues to descend, the clamping spring 47 is compressed, causing the clamping cylinder 46 to move upward relative to the limiting sleeve 45. The punch 49 then engages with the punch 20 to complete the punching operation. The retaining flange 50 prevents the clamping cylinder 46 from disengaging from the limiting sleeve 45.

[0042] like Figure 3 , Figure 4 As shown, the feeding mechanism includes a ring-shaped chute 10 on the workbench 1, two sliding positioning components 11 that can slide along the chute 10, and a cylinder assembly 12. A square enclosure 13 is fixed on the workbench 1, the chute 10 is located inside the enclosure 13, and the cylinder assembly 12 is fixed on the workbench 1 outside the enclosure 13 and drives the sliding positioning components 11 to move unidirectionally in a ring along the chute 10.

[0043] The drive mechanism 9 drives the lifting plate 4 to descend. The sliding positioning component 11 is pushed by the cylinder component 12 and moves along the slide groove 10 to the forming station and the punching station in sequence. The forming process is performed first, and then the plate is transferred to the punching station for the punching process.

[0044] like Figure 6 , Figure 7 As shown, the sliding positioning assembly 11 includes a slide block 14 and a lower die 15. The lower die 15 is fixed on the slide block 14. The bottom of the slide block 14 has a disc-shaped guide part 16 embedded in the slide groove 10. The lower die 15 has a frustum-shaped forming part 17. A forming hole groove 18 is opened in the center of the forming part 17. A positioning rod 19 protrudes upward at the bottom of the forming hole groove 18. The positioning rod 19 is higher than the forming part 17. Several punches 20 are also opened on the top of the forming part 17. The punches 20 are circumferentially distributed at equal intervals around the forming hole groove 18. The slide block 14 is provided with a first discharge hole 21 aligned with the punches 20. A second discharge hole 22 is provided in the slide groove 10. After the sliding positioning assembly 11 moves to the punching station, the first discharge hole 21 and the second discharge hole 22 are aligned.

[0045] After the holes are punched, the round waste pieces fall from the first discharge hole 21 and the second discharge hole 22 into the waste hopper below the worktable 1.

[0046] like Figure 3 , Figure 4 As shown, the cylinder assembly 12 includes a front cylinder 23, a left cylinder 24, and a right cylinder 25. The front cylinder 23, left cylinder 24, and right cylinder 25 are located on the front side, left side, and right side of the enclosure 13, respectively. Rubber blocks 26 are fixed to the front ends of the piston rods of the left cylinder 24 and the right cylinder 25. A synchronization plate 27 is fixed to the front end of the front cylinder 23. Two parallel synchronization rods 28 are fixed to the front end of the synchronization plate 27. An adsorption magnet 29 that can attract the sliding positioning assembly 11 is fixed to the front end of the synchronization rods 28. A square hole 30 is opened at the front end of the enclosure 13 for the adsorption magnet 29 to pass through. Two positioning magnets 31 are fixed at the rear end of the enclosure 13. The two positioning magnets 31 correspond to the forming station and the punching station, respectively. The attraction force of the adsorption magnet 29 is greater than that of the positioning magnet 31.

[0047] The left cylinder 24 and the right cylinder 25 are arranged alternately, and the outer wall of the sliding positioning component 11 is in contact with the inner wall of the enclosure 13 when it slides. The rubber block 26 is used to protect the sliding positioning component 11 and prevent the telescopic rods of the left cylinder 24 and the right cylinder 25 from squeezing the side of the sliding positioning component 11 and causing damage to the rack 35.

[0048] like Figure 5As shown, the slide groove 10 is a square ring shape, with a raised guide plate 32 at the center of the slide groove 10. A vertical shaft 33 is rotatably connected to the guide plate 32, passing through the worktable 1. A guide gear 34 is fixed at the upper end of the shaft 33. The lower mold 15 has racks 35 around its perimeter. During sliding, the racks 35 mesh with the guide gear 34, causing the guide gear 34 to rotate. A ratchet 36 is fixed at the lower end of the shaft 33. A pawl 37 is rotatably connected to the lower end of the worktable 1. A baffle 38 is fixed to the lower end of the worktable 1. A tension spring 39 is connected between the baffle 38 and the tail end of the pawl 37. Under the action of the tension spring 39, the pawl head of the pawl 37 engages with the ratchet 36, making the ratchet 36 rotate only in one direction.

[0049] The four corners of the slide 10 correspond to the loading station, forming station, punching station, and unloading station, respectively. Two sliding positioning components 11 are located at opposite corners of the slide 10. The piston rod of the front cylinder 23 pushes the synchronous plate 27 forward, and the left synchronous rod 28 pushes the sliding positioning component 11 on the loading station to the forming station. Meanwhile, the other sliding positioning component 11 is located on the punching station and has just finished punching. Since the ratchet 36 rotates clockwise in one direction, it is locked by the pawl 37 in the opposite direction. Therefore, the sliding positioning component 11 cannot move in the opposite direction. When the right-side synchronizing rod 28 contacts the sliding positioning component 11, the piston rod of the front cylinder 23 retracts, and the synchronizing plate 27 moves backward. Since the guide gear 34 cannot rotate counterclockwise, the sliding positioning component 11 at the forming station cannot retract. Therefore, the left-side adsorption magnet 29 separates from the sliding positioning component 11. After separation, the positioning magnet 31 attracts the sliding positioning component 11 back, causing it to fit against the inner wall of the enclosure 13 for precise positioning. The right-side adsorption magnet 29 then moves the sliding positioning component 11 from the punching station to the unloading station. During this process, the inner rack 35 meshes with the guide gear 34. Because the guide gear 34 rotates clockwise, it does not affect the movement of the sliding positioning component 11 to the unloading station. The synchronizing rod 28, carrying the adsorption magnet 29, completely retracts from the enclosure 13, while the sliding positioning component 11 remains inside the enclosure 13 due to its obstruction. At this point, the lifting plate 4 can be lowered for forming operations, and workers can retrieve the product from the unloading station. After completion, the left cylinder 24 pushes the sliding positioning component 11 of the forming station to move towards the punching station, and the right cylinder 25 pushes the sliding positioning component 11 of the unloading station to move towards the loading station. At the loading station, the worker places the pre-punched sheet onto the positioning rod 19. This cycle is repeated to ensure that the worker's hands do not need to be inserted into the forming and punching stations during operation, thus improving safety.

[0050] like Figure 8As shown, the drive mechanism 9 includes a mounting box 51 fixed on the support plate 2, a motor 52, a reducer 53, a drive gear 54, a rocker arm 55, a lifting sliding member 56, a guide plate 57, and a connecting plate 58. The motor 52 and the reducer 53 are fixed on the mounting box 51. The drive gear 54 is rotatably connected inside the mounting box 51 and is poweredly connected to the reducer 53. The upper end of the rocker arm 55 is eccentrically hinged to the drive gear 54, and the lower end of the rocker arm 55 is hinged to the lifting sliding member 56. The side of the lifting sliding member 56 is embedded in the guide plate 57 and moves up and down along the guide plate 57. The lower end of the lifting sliding member 56 is fixed to the lifting plate 4 through the connecting plate 58.

[0051] Workflow: Motor 52 drives drive gear 54 to rotate via reducer 53. Rocker arm 55 drives lifting sliding member 56 to slide up and down along guide plate 57, ultimately moving lifting plate 4 up and down. Drive mechanism 9 drives lifting plate 4 to descend. Sliding positioning component 11 is pushed by cylinder assembly 12, moving sequentially along slide groove 10 to forming station and punching station. Forming is performed first, then the process is transferred to punching. Cylinder assembly 12 enables two sliding positioning components 11 to move unidirectionally in the annular slide groove 10, achieving integrated processing of workpiece loading, forming, punching, and unloading, significantly improving production efficiency, reducing manual intervention, and eliminating the need for workpiece transfer. Forming and punching processes are performed on the same lower die 15.

[0052] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A stamping device for a motorcycle exhaust pipe tail cover, comprising a workbench (1), a support plate (2), and a stamping mechanism, wherein a feeding mechanism is provided on the workbench (1), and the support plate (2) is fixed on the workbench (1) by a column (3), characterized in that, The stamping mechanism includes a lifting plate (4), a forming upper die (7), and a punching upper die (8). Guide columns (5) are fixed on both sides of the lifting plate (4). A guide sleeve (6) fitted on the outside of the guide column (5) is fixed on the support plate (2). A drive mechanism (9) for driving the lifting plate (4) to move up and down is provided on the support plate (2). The feeding mechanism includes a ring-shaped slide groove (10) opened on the worktable (1), two sliding positioning components (11) that can slide along the slide groove (10), and a cylinder assembly (12). A square enclosure (13) is fixed on the worktable (1). The slide groove (10) is located inside the enclosure (13). The cylinder assembly (12) is fixed on the worktable (1) outside the enclosure (13) and drives the sliding positioning component (11) to move in a unidirectional ring along the slide groove (10).

2. The stamping device for the motorcycle exhaust pipe tail cover according to claim 1, characterized in that, The sliding positioning component (11) includes a slide (14) and a lower mold (15). The lower mold (15) is fixed on the slide (14). The bottom of the slide (14) has a disc-shaped guide part (16) embedded in the slide groove (10). The lower mold (15) has a frustum-shaped forming part (17). The forming part (17) has a forming hole groove (18) in the center. The bottom of the forming hole groove (18) has an upwardly protruding positioning rod (19). The positioning rod (19) is higher than the forming part (17). The top of the forming part (17) also has several punches (20). The punches (20) are equidistantly distributed circumferentially around the forming hole groove (18).

3. The stamping device for the motorcycle exhaust pipe tail cover according to claim 2, characterized in that, The slide block (14) is provided with a first discharge hole (21) aligned with the punch (20), and the slide groove (10) is provided with a second discharge hole (22). After the sliding positioning component (11) moves to the punching station, the first discharge hole (21) and the second discharge hole (22) are aligned.

4. The stamping device for the motorcycle exhaust pipe tail cover according to claim 1, characterized in that, The cylinder assembly (12) includes a front cylinder (23), a left cylinder (24), and a right cylinder (25). The front cylinder (23), left cylinder (24), and right cylinder (25) are located on the front side, left side, and right side of the enclosure (13), respectively. Rubber blocks (26) are fixed to the front ends of the piston rods of the left cylinder (24) and the right cylinder (25). A synchronizing plate (27) is fixed to the front end of the front cylinder (23). A rubber block (26) is fixed to the front end of the synchronizing plate (27). Two parallel synchronizing rods (28) are fixed at the front end of the synchronizing rods (28) with an adsorption magnet (29) that can adsorb the sliding positioning component (11). The front end of the enclosure (13) has a square hole (30) for the adsorption magnet (29) to pass through. The rear end of the enclosure (13) is fixed with two positioning magnets (31). The two positioning magnets (31) correspond to the forming station and the punching station respectively. The attraction force of the adsorption magnet (29) is greater than that of the positioning magnet (31).

5. The stamping device for the motorcycle exhaust pipe tail cover according to claim 4, characterized in that, The left cylinder (24) and the right cylinder (25) are arranged alternately, and the outer wall of the sliding positioning component (11) is in contact with the inner wall of the enclosure (13) when it slides.

6. The stamping device for the motorcycle exhaust pipe tail cover according to claim 1, characterized in that, The slide (10) is a square ring shape. The center of the slide (10) has a raised guide plate (32). A rotating shaft (33) that runs vertically through the worktable (1) is rotatably connected to the guide plate (32). A guide gear (34) is fixed at the upper end of the rotating shaft (33). A rack (35) is provided around the lower mold (15). During the sliding of the sliding positioning assembly (11), the rack (35) meshes with the guide gear (34) and drives the guide gear (34) to rotate. A ratchet (36) is fixed at the lower end of the rotating shaft (33). A pawl (37) is rotatably connected to the lower end of the worktable (1). A baffle (38) is fixed to the lower end of the worktable (1). A stretch spring (39) is connected between the baffle (38) and the tail end of the pawl (37). Under the action of the stretch spring (39), the pawl head of the pawl (37) engages with the ratchet (36) and makes the ratchet (36) rotate only in one direction.

7. The stamping device for the motorcycle exhaust pipe tail cover according to claim 1, characterized in that, The upper forming mold (7) includes an upper mold head (40), the upper end of which is fixed to the lifting plate (4), and the lower end of the upper mold head (40) has a forming groove (41) that cooperates with the forming part (17) of the lower mold (15). The center of the forming groove (41) has a protruding pressing cylinder (42) that can be inserted into the forming hole groove (18), and the center of the pressing cylinder (42) has a relief hole (43) for the positioning rod (19) to be inserted.

8. The stamping device for the motorcycle exhaust pipe tail cover according to claim 1, characterized in that, The punching upper die (8) includes a punching connecting seat (44) fixed to the lifting plate (4), a limiting sleeve (45), a clamping cylinder (46), a clamping spring (47), an installation template (48), and a punch (49). The punch (49) is embedded in the installation plate, the installation plate is fixed to the lower end of the punching connecting seat (44), the limiting sleeve (45) is fixedly sleeved on the upper end of the punching connecting seat (44), the clamping spring (47) and the clamping cylinder (46) are sleeved on the punching connecting seat (44), the upper end of the clamping spring (47) abuts against the upper end of the punching connecting seat (44), the lower end of the clamping spring (47) abuts against the upper end of the clamping cylinder (46), and the upper end of the clamping cylinder (46) has a protruding flange (50) that abuts against the lower end of the limiting sleeve (45).

9. The stamping device for the motorcycle exhaust pipe tail cover according to claim 1, characterized in that, The drive mechanism (9) includes a mounting box (51) fixed on the support plate (2), a motor (52), a reducer (53), a drive gear (54), a rocker arm (55), a lifting sliding member (56), a guide plate (57), and a connecting plate (58). The motor (52) and the reducer (53) are fixed on the mounting box (51). The drive gear (54) is rotatably connected inside the mounting box (51). The upper end of the rocker arm (55) is eccentrically hinged to the drive gear (54). The lower end of the rocker arm (55) is hinged to the lifting sliding member (56). The side of the lifting sliding member (56) is embedded in the guide plate (57) and moves up and down along the guide plate (57). The lower end of the lifting sliding member (56) is fixed to the lifting plate (4) through the connecting plate (58).

Images