Automobile stub pipe deburring stamping die

Abstract

The application relates to the field of mechanical processing, and particularly relates to a short pipe flash removing stamping die for an automobile, which comprises a bearing plate and a punching unit; the punching unit comprises a cylinder, an upper stamping assembly and a lower punching assembly; the lower punching assembly is installed on the bearing plate; the lower punching assembly is used for punching off the flash on the upper end edge of the short pipe for the automobile, and the lower punching assembly comprises a No.1 spring, a No.1 ring body and a No.1 punching cutter; the No.1 spring is fixedly connected to the bearing plate, the end of the No.1 spring is fixedly connected to the surface of the No.1 ring body close to the bearing plate, the surface of the No.1 ring body away from the bearing plate is fixedly connected with the No.1 punching cutter in the shape of a ring, and the cylinder is arranged above the No.1 punching cutter; the short pipe flash removing stamping die for the automobile in the application is provided with two strokes in one process of the descending of the pressing plate, realizes secondary punching operation, one-time punching processing of the flash on the short pipe for the automobile, simplifies the operation, saves time and labor, improves the efficiency, and ensures that the short pipe for the automobile does not deform at the same time of punching the flash.

Description

Technical Field

[0001] This invention relates to the field of machining, specifically to a stamping die for removing flash from automotive short pipes. Background Technology

[0002] After die-casting, flash will form on the edges, such as... Figure 5 The example shown is a short automotive tube component produced by die casting, which results in flash remaining at both ends of the blank. Before being put into subsequent processing steps, the flash needs to be removed. The existing methods for removing flash are undoubtedly manual processing and mechanical equipment processing.

[0003] Manual operation is too labor-intensive and unsuitable for long periods of time. While mechanical processing is available, existing equipment requires the die-cast products to be installed on a fine blanking die for the first blanking process to remove the flash. After removal, the products must be moved to another fine blanking die for the second blanking process. This process involves frequent loading and unloading of die-cast products, which is cumbersome, inefficient, time-consuming, and labor-intensive, and requires further improvement.

[0004] Therefore, a stamping die for removing flash from automotive short pipes is proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: A stamping die for removing flash from a short automotive tube, comprising a support plate and a punching unit; the punching unit comprises a cylinder, an upper punching assembly, and a lower punching assembly; the lower punching assembly is mounted on the support plate; the lower punching assembly is used to punch off the flash from the upper edge of the short automotive tube, and the lower punching assembly comprises a first spring, a first ring body, and a first punching blade; the first spring is fixedly connected to the support plate, the end of the first spring is fixedly connected to the surface of the first ring body close to the support plate, and a ring-shaped first punching blade is fixedly connected to the surface of the first ring body away from the support plate, and a cylinder is provided above the first punching blade;

[0007] The cylinder output end points towards the downward punching assembly, and the cylinder output end is fixedly connected to the upper punching assembly; the upper punching assembly is used to punch off the burrs on the upper edge of the automotive short pipe, and the upper punching assembly includes a second spring, a second ring body, and a second punching blade; a pressure plate is fixedly connected to the cylinder output end, a second spring is fixedly connected to the lower surface of the pressure plate, the end of the second spring is fixedly connected to the second ring body, and a second punching blade is fixedly connected to the surface of the second ring body near the bearing plate; the inner rings of the first and second punching blades are clearance-fitted with the outer ring of the automotive short pipe, and the axis of the second punching blade is aligned with the axis of the first punching blade. The axial state; the inner rings of the No. 1 and No. 2 punching cutters can slide along the outer surface of the automobile short tube; the elastic force of the No. 2 spring is less than that of the No. 1 spring; a limiting block is provided on the upper end face of the No. 2 ring body, which is used to protect the No. 2 spring and limit the movement stroke of the No. 2 ring body; this automobile short tube deflashing stamping die, the pressure plate descends in one process, divided into two strokes, to realize the secondary punching operation, and punches the deflash on the automobile short tube in one go, which simplifies the operation, saves time and effort, and improves efficiency. While punching the deflash, it also ensures that the automobile short tube does not deform.

[0008] Preferably, the bearing plate is provided with a centering positioning component; the centering positioning component includes a support plate and a lead screw, a motor is fixedly connected to the bearing plate, the output end of the motor passes through the bearing plate, the output end of the motor is fixedly connected to the lead screw, multiple support plates are arranged in a circular array around the outer periphery of the lead screw, a push plate is provided on the inclined part of the inner side wall of the support plate, and a push plate is drivenly connected to the lead screw;

[0009] The end of the lead screw furthest from the bearing plate is rotatably connected to a connecting block. Multiple guide rods are arranged in a circular array on the outer wall of the connecting block. A tension spring is fixed to the end of each guide rod, and a guide cylinder is sleeved on the guide rod. The ends of the tension spring and the guide cylinder are fixed to the side wall of the support plate. When placing the car short tube on the first punching cutter, the position of the car short tube needs to be adjusted so that the axis of the car short tube is approximately coaxial with the axis of the first punching cutter. Only then can the first and second punching cutters accurately cut off the flash at both ends of the car short tube. Relying solely on manual inspection or measurement is quite tedious. Therefore, a centering positioning unit is set up. The car short tube is placed on the centering positioning unit so that the support plate is inserted into the car... Inside the short tube, the drive motor rotates, which in turn drives the lead screw to rotate. Meanwhile, the support plate is held in place by a tension spring, ensuring it moves continuously towards the lead screw. Simultaneously, the inner wall of the support plate presses against the push plate. The friction between the push plate and the support plate constrains the push plate's rotation, limiting its movement to the up-and-down motion along the lead screw. As the lead screw rotates, it pushes the push plate, which presses against the slope of the support plate, pushing it outwards. The outer surface of the support plate then presses against the inner wall of the short tube, centering the short tube. This ensures the short tube's axis is coaxial with the first punching blade, facilitating positioning, enabling rapid feeding, and improving overall punching efficiency.

[0010] Preferably, a guide groove is formed on the inner sidewall of the support plate; a guide post is provided on the outer ring surface of the push plate, and the guide post is slidably connected in the guide groove; the guide post on the push plate is slidably connected in the guide groove to further constrain the rotation of the push plate. Even if the support plate constrains the rotation of the push plate by squeezing, the edge of the push plate rubs against the inner sidewall of the support plate multiple times, and the contact part between the push plate and the support plate will tend to be smooth. The support plate fails to effectively limit the push plate. Therefore, the cooperation structure of the guide post and the guide groove can completely stabilize the rotation of the push plate.

[0011] Preferably, the support plate has multiple grooves arranged in a circumferential array, and the support plate has a slider at the end near the support plate, which is slidably connected in the groove. Under the constraint of the guide rod and guide cylinder, and further constrained by the slider and the groove, the support plate is more stable during the support process.

[0012] Preferably, the motor is a dual-output motor, with each output end of the motor fixedly connected to a bearing plate; the motor housing is symmetrically fixedly connected to a rotating shaft, which is supported on the ground by a support frame; the motor has two symmetrically arranged output ends, each with a bearing plate fixed to the motor housing, and each bearing plate has an upper stamping assembly and a lower punching assembly; during operation, the rotating shaft is rotated so that one output end of the motor faces upward and the other output end faces downward. At this time, the short car tube is placed on the first punching blade corresponding to the upward-facing motor output end. After punching, the cylinder resets, and the rotating shaft rotates 180 degrees. The punched short car tube rotates to above the ground, and then the motor is controlled to rotate, the push plate moves closer to the bearing plate, and the support plate moves towards the lead screw. The short car tube loses the support of the support plate and is removed from the deburring stamping die. At the same time, a new short car tube to be processed is placed on the first punching blade corresponding to the upward-facing motor output end. This process is repeated, and the alternating loading and unloading helps to improve punching efficiency.

[0013] Preferably, a gear is fixedly connected to the rotating shaft, a drive plate is meshed on one side of the gear, and the upper end of the drive plate is fixedly connected to the lower surface of the pressure plate.

[0014] The driving plate includes engaging teeth and a plate body. A rotating groove is formed on the side wall of the plate body opposite to the gear. The rotating groove is formed along the length direction of the plate body. A plurality of engaging teeth are evenly rotatably connected up and down in the rotating groove. A plurality of relief grooves are also formed on the side wall of the plate body. The relief grooves are located on both sides of the rotating groove. The engaging teeth can deflect into the relief grooves. When the air cylinder pushes the pressing plate close to the bearing plate, the pressing plate pushes down the driving plate. At this time, the engaging teeth are blocked by the teeth of the gear, and the engaging teeth deflect upward into the relief grooves. Then, the flash trimming of the automotive short tube is completed. After that, the air cylinder drives the pressing plate to move upward and reset. The pressing plate drives the driving plate to move upward. At this time, the rear end of the engaging teeth is顶住 by the plate body, and the engaging teeth cannot deflect downward. At this time, the engaging teeth are embedded in the upper teeth of the gear and rub the gear to rotate, and at the same time drive the motor to rotate 180 degrees. The trimmed automotive short tube rotates above the ground. Then, the motor is controlled to rotate, the pushing plate approaches the bearing plate, and the supporting plate moves towards the lead screw. The automotive short tube loses the support of the supporting plate and disengages from the flash trimming die. The setting of this driving plate realizes the 180-degree rotation of the gear without external power drive, saves the investment of redundant equipment, and at the same time, this structure is compact, occupies little space, and is more suitable for processing workshops with tight land use.

[0015] Preferably, a limiting strip is provided on the plate body. The limiting strip is arranged along the length direction of the plate body. A notch is formed on the teeth of the gear. The engaging teeth are engaged with the teeth of the gear. The limiting strip is embedded in the notch. By setting the limiting strip, the relative offset between the plate body and the gear is restricted, and the stability of the movement of the driving plate is improved, so that the engaging teeth can be more stably engaged and driven with the gear.

[0016] Preferably, a support rod is fixedly connected to the outer side wall of the support frame. The upper end of the support rod is fixedly connected to the lower end face of the cylinder block of the air cylinder. A strip-shaped hole is formed on the support rod. The strip-shaped hole is arranged along the length direction of the support rod. Guide blocks in the shape of "soil" are provided on both side walls of the pressing plate. The guide blocks are slidably connected in the strip-shaped hole. The cooperation of the support rod and the guide block is set. The guide blocks slide up and down in the strip-shaped hole, restricting the horizontal offset of the downward movement of the pressing plate, and at the same time, it is also the stability of the first punching knife, reducing the offset amplitude of the first punching knife in the horizontal direction, so that the first punching knife can accurately cut off the flash at the upper end of the automotive short tube.

[0017] Preferably, a plurality of sliding rods are fixedly connected to the upper surface of the second ring body in a circumferential array. The sliding rods penetrate through the pressing plate. When the second spring is compressed, the second spring will have a horizontal offset. By setting a plurality of sliding rods, the horizontal movement offset of the second ring body is restricted, ensuring that the axis of the second punching knife tends to be coaxial with the axis of the automotive short tube.

[0018] Preferably, a connecting sleeve is provided between the output end of the motor and the end of the lead screw. The end of the lead screw close to the bearing plate is inserted into the connecting sleeve. At the same time, the output end of the motor is inserted into the connecting sleeve, and then it is tightened with a countersunk head screw for disassembly and installation at the edge.

[0019] The advantages of this invention are:

[0020] 1. The flash removal stamping die for automobile short pipes in this invention has a pressure plate that descends in one process, divided into two strokes, to achieve a secondary punching operation. This process can punch out the flash on the automobile short pipe in one go, simplifying the operation, saving time and effort, and improving efficiency. At the same time as punching out the flash, it also ensures that the automobile short pipe does not deform.

[0021] 2. The present invention has two symmetrically arranged output ends on the motor, and each output end is equipped with a support plate. The support plate is fixed on the motor housing. Each support plate is equipped with an upper stamping component and a lower punching component, which alternately loads and unloads materials, thus helping to improve punching efficiency. Attached Figure Description

[0022] Figure 1 This is a first perspective view of the flash stamping die in this invention;

[0023] Figure 2 This is a second perspective view of the flash stamping die in this invention;

[0024] Figure 3 This is a front view of the flash stamping die in this invention;

[0025] Figure 4 This is a side view of the flash stamping die in this invention;

[0026] Figure 5 This is a schematic diagram of the short tube structure of an automobile to be processed in this invention;

[0027] Figure 6 This is an exploded view of the centering positioning component in this invention;

[0028] Figure 7 This is an exploded view of the support plate and the push plate in this invention;

[0029] Figure 8 This is a perspective view of the centering positioning component in this invention;

[0030] Figure 9 This is a perspective view of the fit between the lead screw and the support plate in this invention;

[0031] Figure 10 This is a perspective view of the interaction between the drive plate and the gear in this invention;

[0032] Figure 11 This is a side view of the engagement between the drive plate and the gear in this invention;

[0033] Figure 12 This is a perspective view of the driver board in this invention;

[0034] Figure 13 This is a cross-sectional view of the drive board in this invention;

[0035] Figure 14 This is a perspective view of the gear in this invention.

[0036] In the diagram: 101. Automotive short pipe; 102. Flash; 103. Limiting block; 1. Bearing plate; 2. Cylinder; 3. Spring No. 1; 4. Ring No. 1; 5. Punching blade No. 1; 6. Spring No. 2; 7. Ring No. 2; 8. Punching blade No. 2; 9. Pressure plate; 10. Support plate; 11. Lead screw; 12. Motor; 13. Push plate; 14. Connecting block; 15. Guide rod; 16. Tension spring; 17. Guide cylinder; 18. Guide groove; 19. Guide column; 20. Sliding groove; 21. Sliding block; 22. Rotating shaft; 23. Support frame; 24. Gear; 25. Drive plate; 26. Clamping tooth; 27. Plate body; 28. Rotating groove; 29. ​​Clearance groove; 30. Limiting strip; 31. Notch; 32. Support rod; 33. Strip hole; 34. Guide block; 35. Sliding rod; 36. Connecting sleeve. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example 1

[0038] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 8 A stamping die for removing burrs from automotive short pipes includes a support plate 1 and a punching unit. The punching unit includes a cylinder 2, an upper punching assembly, and a lower punching assembly. The lower punching assembly is mounted on the support plate 1. The lower punching assembly is used to punch off the burrs 102 at the upper edge of the automotive short pipe 101. The lower punching assembly includes a first spring 3, a first ring 4, and a first punching blade 5. The first spring 3 is fixed to the support plate 1, and the end of the first spring 3 is fixed to the surface of the first ring 4 near the support plate 1. The ring-shaped first punching blade 5 is fixed to the surface of the first ring 4 away from the support plate 1. The cylinder 2 is disposed above the first punching blade 5.

[0039] The output end of cylinder 2 points towards the lower punching assembly, and the output end of cylinder 2 is fixedly connected to the upper punching assembly; the upper punching assembly is used to punch off the burr 102 at the upper edge of the automotive short pipe 101, and the upper punching assembly includes a second spring 6, a second ring body 7, and a second punching blade 8; the output end of cylinder 2 is fixedly connected to a pressure plate 9, the lower surface of the pressure plate 9 is fixedly connected to the second spring 6, the end of the second spring 6 is fixedly connected to the second ring body 7, and the surface of the second ring body 7 near the bearing plate 1 is fixedly connected to the second punching blade. Cutter 8; the inner rings of the first cutting cutter 5 and the second cutting cutter 8 are clearance-fitted with the outer ring of the automobile short pipe 101, and the axis of the second cutting cutter 8 is coaxial with the axis of the first cutting cutter 5; the inner rings of the first cutting cutter 5 and the second cutting cutter 8 can slide along the outer surface of the automobile short pipe 101; the elastic force of the second spring 6 is less than the elastic force of the first spring 3; the upper end face of the second ring body 7 is provided with a limiting block 103, which is used to protect the second spring 6 and limit the movement stroke of the second ring body 7;

[0040] The specific working process of the embodiment provided in this invention is as follows: First, the automobile short pipe 101 is placed on the first punching cutter 5. Because the end of the automobile short pipe 101 has residual burrs 102, the first punching cutter 5 can support the automobile short pipe 101. Then, the position of the automobile short pipe 101 is adjusted so that the axis of the automobile short pipe 101 and the axis of the first punching cutter 5 are close to the same axis. Then, the cylinder 2 is driven. The output of the cylinder 2 is divided into a first stroke and a second stroke. In the first stroke, the cylinder 2 pushes down the pressure plate 9. The pressure plate 9 drives the second spring 6 and the second punching cutter 8 to move. The second punching cutter 8 is close to the upper end of the automobile short pipe 101. Then, the second punching cutter 8... The burr 102 at the upper end of the short tube 101 is punched off. During the punching process, the second spring 6 is compressed, and then the cylinder 2 continues to push the pressure plate 9 down for the second stroke. At this time, the upper end of the limit block 103 is pressed against the pressure plate 9, and the pressure plate 9 pushes the second ring body 7. The upper end of the short tube 101 is pressed against the lower surface of the second ring body 7, pushing the short tube 101 down. The burr 102 at the lower end of the short tube 101 is squeezed onto the second punching cutter 8, and then the burr 102 at the lower end of the short tube 101 is punched off by the first punching cutter 5. The lower end of the short tube 101 is close to the first ring body 4. At this time, the burrs 102 at both the upper and lower ends of the short tube 101 are punched off.

[0041] The flash removal die for automotive short pipes has a pressure plate 9 that descends in one process, divided into two strokes, to achieve a secondary punching operation. This process punches out the flash 102 on the automotive short pipe 101 in one go, simplifying the operation, saving time and effort, and improving efficiency. While punching out the flash 102, it also ensures that the automotive short pipe 101 does not deform.

[0042] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5, Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 The bearing plate 1 is provided with a centering positioning component; the centering positioning component includes a support plate 10 and a lead screw 11. A motor 12 is fixedly connected to the bearing plate 1. The output end of the motor 12 passes through the bearing plate 1 and is fixedly connected to the lead screw 11. Multiple support plates 10 are arranged in a circular array around the outer periphery of the lead screw 11. A push plate 13 is provided on the inclined part of the inner side wall of the support plate 10. The push plate 13 is drivenly connected to the lead screw 11.

[0043] The end of the lead screw 11 away from the bearing plate 1 is rotatably connected to a connecting block 14. Multiple guide rods 15 are arranged in a circumferential array on the outer wall of the connecting block 14. A tension spring 16 is fixedly connected to the end of each guide rod 15, and a guide cylinder 17 is sleeved on the guide rod 15. The ends of the tension spring 16 and the guide cylinder 17 are fixedly connected to the end side wall of the support plate 10. When placing the car short pipe 101 on the first punching cutter 5, the position of the car short pipe 101 needs to be adjusted so that the axis of the car short pipe 101 is approximately coaxial with the axis of the first punching cutter 5. Only then can the first punching cutter 5 and the second punching cutter 8 accurately cut off the flash 102 at both ends of the car short pipe 101. Relying solely on manual inspection or measurement is quite tedious. Therefore, a centering positioning unit is set up. The car short pipe 101 is placed on the centering positioning unit so that the support plate 10 is inserted into the car short pipe 101. Inside, the drive motor 12 drives the lead screw 11 to rotate. At this time, the support plate 10 is pulled by the tension spring 16, so that the support plate 10 is always driven to move in the direction of the lead screw 11. At the same time, the inner wall of the support plate 10 is pressed against the push plate 13. The friction between the push plate 13 and the support plate 10 constrains the rotation of the push plate 13, so that the push plate 13 is limited to moving up and down along the lead screw 11. Therefore, when the lead screw 11 rotates, it pushes the push plate 13, and the push plate 13 is pressed against the slope position of the support plate 10, and supports the support plate 10 outward. Then the outer surface of the support plate 10 is pressed against the inner wall of the automobile short tube 101, so that the automobile short tube 101 is centered. That is, the axis of the automobile short tube 101 and the axis of the first punching knife 5 are in a coaxial state, which facilitates the positioning of the automobile short tube 101, realizes rapid feeding, and improves the overall punching efficiency.

[0044] Reference Figure 7The inner wall of the support plate 10 has a guide groove 18; the outer surface of the push plate 13 is provided with a guide post 19, which is slidably connected in the guide groove 18; the guide post 19 on the push plate 13 is slidably connected in the guide groove 18 to further constrain the rotation of the push plate 13. Even if the support plate 10 constrains the rotation of the push plate 13 by squeezing, the edge of the push plate 13 rubs against the inner wall of the support plate 10 multiple times, and the contact part between the push plate 13 and the support plate 10 will tend to be smooth. The support plate 10 fails to effectively limit the push plate 13. Therefore, the cooperation structure of the guide post 19 and the guide groove 18 can completely stabilize the rotation of the push plate 13.

[0045] Reference Figure 6 and Figure 7 The support plate 1 has multiple grooves 20 arranged in a circular array. The support plate 10 has a slider 21 near the end of the support plate 1. The slider 21 is slidably connected in the groove 20. Under the constraint of the guide rod 15 and the guide cylinder 17, and further constrained by the slider 21 and the groove 20, the support plate 10 is more stable during the support process.

[0046] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 The motor 12 is a dual-output motor 12, with a bearing plate 1 fixedly connected to each of its two output ends. A rotating shaft 22 is symmetrically fixed to the housing of the motor 12, and the rotating shaft 22 is supported on the ground by a support frame 23. Each of the two output ends of the motor 12 is equipped with a bearing plate 1, which is fixed to the housing of the motor 12. Each bearing plate 1 has an upper stamping assembly and a lower punching assembly. During operation, the rotating shaft 22 is rotated so that one output end of the motor 12 faces upwards and the other output end faces downwards. At this time, the automotive short pipe 101 is placed on the first corresponding output end of the upward-facing motor 12. After punching, the cylinder 2 resets and the rotating shaft 22 rotates 180 degrees. At this time, the punched car short tube 101 rotates to the ground. Then, the motor 12 is controlled to rotate, the push plate 13 moves closer to the bearing plate 1, and the support plate 10 moves towards the lead screw 11. The car short tube 101 loses the support of the support plate 10 and is removed from the deburring 102 stamping die. At the same time, a new car short tube 101 to be processed is placed on the first punching blade 5 corresponding to the upward-facing output end of the motor 12. This process is repeated to cycle the above operations. Alternating loading and unloading helps to improve punching efficiency.

[0047] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 , Figure 12 , Figure 13 and Figure 14 A gear 24 is fixedly connected to the rotating shaft 22, and a drive plate 25 meshes with one side of the gear 24. The upper end of the drive plate 25 is fixedly connected to the lower surface of the pressure plate 9.

[0048] The drive plate 25 includes locking teeth 26 and a plate body 27. A rotating groove 28 is formed on the side wall of the plate body 27 opposite to the gear 24. The rotating groove 28 is formed along the length of the plate body 27, and multiple locking teeth 26 are evenly connected and rotated vertically within the rotating groove 28. Multiple clearance grooves 29 are also formed on the side wall of the plate body 27, located on both sides of the rotating groove 28. The locking teeth 26 can deflect into the clearance grooves 29. When the cylinder 2 pushes the pressure plate 9 close to the support plate 1, the pressure plate 9 pushes down the drive plate 25. At this time, the locking teeth 26 are blocked by the teeth of the gear 24, and the locking teeth 26 deflect upward into the clearance grooves 29. Then, the flash 102 of the automotive short pipe 101 is punched. Afterwards, the cylinder 2 drives the pressure plate 9 to move upward and reset, and the pressure plate 9 drives the drive plate 25 to move upward. At this time, the rear end of the cleaver 26 is held in place by the plate 27, and the cleaver 26 cannot deflect downwards. At this time, the cleaver 26 is embedded in the teeth of the gear 24 and rubs the gear 24 to rotate. At the same time, it drives the motor 12 to rotate 180 degrees. The punched car short tube 101 rotates to the ground. Then, the motor 12 is controlled to rotate, the push plate 13 moves closer to the bearing plate 1, and the support plate 10 moves towards the lead screw 11. The car short tube 101 loses the support of the support plate 10 and is removed from the deburring 102 stamping die. The setting of the drive plate 25 realizes the 180-degree rotation of the gear 24 without the need for external power drive, saving the investment of extra equipment. At the same time, the structure is compact and occupies little space, making it more suitable for processing workshops with limited space.

[0049] Reference Figure 10 , Figure 12 , Figure 13 and Figure 14 The plate 27 is provided with a limiting strip 30, which is arranged along the length of the plate 27; the gear 24 has a notch 31 on its teeth, and the locking tooth 26 meshes with the teeth of the gear 24, with the limiting strip 30 embedded in the notch 31; by setting the limiting strip 30, the relative offset between the plate 27 and the gear 24 is constrained, the stability of the drive plate 25 movement is improved, and the locking tooth 26 can mesh with the gear 24 more stably for transmission.

[0050] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 and Figure 11 On the outer side wall of the support frame 23, a support rod 32 is fixedly connected. The upper end of the support rod 32 is fixedly connected to the lower end face of the cylinder block of the cylinder 2. A strip-shaped hole 33 is formed in the support rod 32. The strip-shaped hole 33 is arranged along the length direction of the support rod 32. On both side walls of the pressing plate 9, guiding blocks 34 in the shape of the Chinese character 'tu' are provided. The guiding blocks 34 are slidably connected in the strip-shaped hole 33. By providing the cooperation of the support rod 32 and the guiding blocks 34, the guiding blocks 34 slide up and down in the strip-shaped hole 33, restricting the offset of the pressing plate 9 in the horizontal direction during downward movement. At the same time, it also stabilizes the first punching cutter 5, reducing the offset amplitude of the first punching cutter 5 in the horizontal direction, so that the first punching cutter 5 precisely cuts off the flash 102 at the upper end of the automotive short pipe 101.

[0051] Reference Figure 3 On the upper surface of the second ring body 7, a plurality of sliding rods 35 are fixedly connected in a circumferential array. The sliding rods 35 penetrate through the pressing plate 9. When the second spring 6 is compressed by extrusion, the second spring 6 will have an offset in the horizontal direction. By providing a plurality of sliding rods 35, the offset of the second ring body 7 in the horizontal direction is restricted, ensuring that the axis of the second punching cutter 8 tends to be coaxial with the axis of the automotive short pipe 101. Embodiment 2

[0052] Reference Figure 6 Compared with Embodiment 1, as another implementation manner of the present invention, a connecting sleeve 36 is provided between the output end of the motor 12 and the end of the screw rod 11. The end of the screw rod 11 close to the bearing plate 1 is inserted into the connecting sleeve 36. At the same time, the output end of the motor 12 is inserted into the connecting sleeve 36, and then it is tightened with countersunk screws for disassembly and installation at the edge.

[0053] Working Principle: The specific working process of the embodiment provided in this invention is as follows: First, the automobile short pipe 101 is placed on the first punching cutter 5. Because the end of the automobile short pipe 101 has residual burrs 102, the first punching cutter 5 can support the automobile short pipe 101. Then, the position of the automobile short pipe 101 is adjusted so that the axis of the automobile short pipe 101 and the axis of the first punching cutter 5 tend to be coaxial. Then, the cylinder 2 is driven. The output of the cylinder 2 is divided into a first stroke and a second stroke. In the first stroke, the cylinder 2 pushes down the pressure plate 9. The pressure plate 9 drives the second spring 6 and the second punching cutter 8 to move. The second punching cutter 8 is close to the upper end of the automobile short pipe 101. Then the second punching cutter... 8. The flash 102 at the upper end of the short tube 101 is punched off. During the punching process, the second spring 6 is compressed. Then the cylinder 2 continues to push the pressure plate 9 down for the second stroke. At this time, the upper end of the limit block 103 is pressed against the pressure plate 9. The pressure plate 9 pushes the second ring body 7. The upper end of the short tube 101 is pressed against the lower surface of the second ring body 7, pushing the short tube 101 down. The flash 102 at the lower end of the short tube 101 is squeezed onto the second punching cutter 8. Then the flash 102 at the lower end of the short tube 101 is punched off by the first punching cutter 5. The lower end of the short tube 101 is close to the first ring body 4. At this time, the flash 102 at both the upper and lower ends of the short tube 101 is punched off.

[0054] The flash removal stamping die for automobile short pipes has a pressure plate 9 that descends in one process, divided into two strokes, to achieve a secondary punching operation. This process punches out the flash 102 on the automobile short pipe 101 in one go, simplifying the operation, saving time and effort, and improving efficiency. While punching out the flash 102, it also ensures that the automobile short pipe 101 does not deform.

[0055] When placing the car short tube 101 on the first punch cutter 5, the position of the car short tube 101 needs to be adjusted so that the axis of the car short tube 101 is close to the axis of the first punch cutter 5. Only then can the first punch cutter 5 and the second punch cutter 8 accurately cut off the burrs 102 at both ends of the car short tube 101. Relying solely on manual inspection or measurement is quite tedious. Therefore, a centering positioning unit is set up. The car short tube 101 is placed on the centering positioning unit so that the support plate 10 is inserted into the car short tube 101. Then, the drive motor 12 drives the lead screw 11 to rotate. At this time, the support plate 10 is pulled by the tension spring 16, so that the support plate 10 is always in the direction of the lead screw. Driven by the movement of rod 11, the inner wall of support plate 10 is pressed against push plate 13. The friction between push plate 13 and support plate 10 constrains the rotation of push plate 13, limiting push plate 13 to moving up and down along lead screw 11. Therefore, when lead screw 11 rotates, it pushes push plate 13, which is pressed against the slope of support plate 10 and supports support plate 10 outward. Then, the outer surface of support plate 10 is pressed against the inner wall of automobile short tube 101, so that automobile short tube 101 is centered. That is, the axis of automobile short tube 101 and the axis of first punching knife 5 are in a coaxial state, which facilitates the positioning of automobile short tube 101, realizes rapid feeding, and improves the overall punching efficiency.

[0056] The guide post 19 on the push plate 13 is slidably connected in the guide groove 18, which further constrains the rotation of the push plate 13. Even if the support plate 10 constrains the rotation of the push plate 13 by squeezing, the edge of the push plate 13 rubs against the inner wall of the support plate 10 multiple times, and the contact area between the push plate 13 and the support plate 10 tends to be smooth. The support plate 10 fails to effectively limit the push plate 13. Therefore, the cooperation structure between the guide post 19 and the guide groove 18 can completely stabilize the rotation of the push plate 13. Under the constraint of the guide rod 15 and the guide cylinder 17, and further constrained by the slider 21 and the slide groove 20, the support plate 10 is more stable during the support process.

[0057] The motor 12 has two output ends equipped with a support plate 1, which is fixed to the housing of the motor 12. Each support plate 1 is equipped with an upper stamping component and a lower punching component. During operation, the rotating shaft 22 is rotated so that one output end of the motor 12 faces upward and the other output end of the motor 12 faces downward. At this time, the short car tube 101 is placed on the first punching blade 5 corresponding to the upward-facing output end of the motor 12. After punching, the cylinder 2 is reset, and the rotating shaft 22 rotates 180 degrees. At this time, the punched short car tube 101 rotates to the ground. Then, the motor 12 is controlled to rotate, the push plate 13 moves closer to the support plate 1, and the support plate 10 moves towards the lead screw 11. The short car tube 101 loses the support of the support plate 10 and is removed from the deburring 102 stamping die. At the same time, a new short car tube 101 to be processed is placed on the first punching blade 5 corresponding to the upward-facing output end of the motor 12. This process is repeated to improve the punching efficiency.

[0058] When cylinder 2 pushes pressure plate 9 close to bearing plate 1, pressure plate 9 pushes down drive plate 25. At this time, the retaining tooth 26 is blocked by the teeth of gear 24, and the retaining tooth 26 deflects upward into the relief groove 29. Then, the burr 102 of the automobile short pipe 101 is punched. After that, cylinder 2 drives pressure plate 9 to move upward and reset. Pressure plate 9 drives drive plate 25 to move upward. At this time, the rear end of retaining tooth 26 is pushed by plate 27, and retaining tooth 26 cannot deflect downward. At this time, retaining tooth 26 is embedded in the teeth of gear 24 and rubs gear 24 to rotate, while driving motor 12. The short car tube 101, after being punched, rotates 180 degrees to the ground. Then, the motor 12 is controlled to rotate, the push plate 13 moves closer to the bearing plate 1, and the support plate 10 moves towards the lead screw 11. The short car tube 101 loses the support of the support plate 10 and is removed from the deburring 102 stamping die. The setting of the drive plate 25 enables the gear 24 to rotate 180 degrees without the need for external power drive, saving the investment of unnecessary equipment. At the same time, the structure is compact and occupies little space, making it more suitable for processing workshops with limited space.

[0059] By setting a limit bar 30, the relative offset between the plate 27 and the gear 24 is constrained, improving the stability of the drive plate 25's movement and enabling the clasp 26 to mesh more stably with the gear 24. The support rod 32 and guide block 34 are configured to cooperate, with the guide block 34 sliding up and down within the strip hole 33, constraining the downward horizontal offset of the pressure plate 9. This also stabilizes the first punch cutter 5, reducing its horizontal offset and allowing it to precisely cut off the burr 102 at the top of the automotive short tube 101. When the second spring 6 is compressed, it will shift horizontally. By setting multiple sliding rods 35, the second ring 7 is constrained to shift horizontally, ensuring that the axis of the second punch cutter 8 and the axis of the automotive short tube 101 are nearly coaxial.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stamping die for removing flash from automotive short pipes, characterized in that: It includes a support plate (1) and a punching unit; the punching unit includes a cylinder (2), an upper punching assembly and a lower punching assembly; the support plate (1) is equipped with a lower punching assembly; the lower punching assembly is used to punch off the burrs at the lower edge of the automobile short pipe, and the lower punching assembly includes a first spring (3), a first ring body (4) and a first punching blade (5); the first spring (3) is fixed to the support plate (1), the end of the first spring (3) is fixed to the surface of the first ring body (4) close to the support plate (1), and the ring-shaped first punching blade (5) is fixed to the surface of the first ring body (4) away from the support plate (1), and the cylinder (2) is provided above the first punching blade (5); The output end of the cylinder (2) points to the lower punching assembly, and the output end of the cylinder (2) is fixed to the upper punching assembly; the upper punching assembly is used to punch off the burrs on the upper edge of the short pipe of the car, and the upper punching assembly includes a second spring (6), a second ring body (7) and a second punching blade (8); the output end of the cylinder (2) is fixed to a pressure plate (9), the lower surface of the pressure plate (9) is fixed to a second spring (6), the end of the second spring (6) is fixed to a second ring body (7), and the surface of the second ring body (7) close to the bearing plate (1) is fixed to a second punching blade (8); The bearing plate (1) is provided with a centering positioning component; the centering positioning component includes a support plate (10) and a lead screw (11). A motor (12) is fixedly connected to the bearing plate (1). The output end of the motor (12) passes through the bearing plate (1). The output end of the motor (12) is fixedly connected to the lead screw (11). Multiple support plates (10) are arranged in a circular array around the outer periphery of the lead screw (11). A push plate (13) is provided on the inclined part of the inner side wall of the support plate (10). The push plate (13) is connected to the lead screw (11) in a transmission. The end of the lead screw (11) away from the bearing plate (1) is rotatably connected to a connecting block (14). Multiple guide rods (15) are arranged in a circular array on the outer side wall of the connecting block (14). A tension spring (16) is fixed to the end of the guide rod (15). A guide cylinder (17) is sleeved on the guide rod (15). The ends of the tension spring (16) and the guide cylinder (17) are fixed to the end side wall of the support plate (10). When in use, the support plate (10) is inserted into the short pipe of the car. The motor (12) drives the lead screw (11) to rotate, so that the push plate (13) moves up and down along the lead screw (11). When the push plate (13) presses the inclined part of the support plate (10) and supports the support plate (10) outward, the outer surface of the support plate (10) is pressed against the inner side wall of the short pipe of the car, thus supporting the short pipe of the car. The motor (12) is a dual-output motor (12), and both output ends of the motor (12) are fixedly connected to a bearing plate (1); the housing of the motor (12) is symmetrically fixedly connected to a rotating shaft (22), and the rotating shaft (22) is supported on the ground by a support frame (23); A gear (24) is fixedly connected to the shaft (22), and a drive plate (25) meshes with one side of the gear (24). The upper end of the drive plate (25) is fixedly connected to the lower surface of the pressure plate (9). The driving board (25) includes engaging teeth (26) and a board body (27). A rotating groove (28) is formed on the side wall of the board body (27) opposite to the gear (24). The rotating groove (28) is formed along the length direction of the board body (27). A plurality of engaging teeth (26) are evenly rotatably connected up and down in the rotating groove (28). A plurality of relief grooves (29) are also formed on the side wall of the board body (27). The relief grooves (29) are located on both sides of the rotating groove (28). The engaging teeth (26) can deflect into the relief grooves (29), and the engaging teeth (26) are engaged with the teeth of the gear (24).

2. The stamping die for removing flash from automotive short pipes according to claim 1, characterized in that: A guiding groove (18) is formed on the inner side wall of the supporting board (10); a guiding column (19) is provided on the outer circumferential surface of the pushing board (13), and the guiding column (19) is slidably connected in the guiding groove (18).

3. The stamping die for removing flash from automotive short pipes according to claim 2, characterized in that: A plurality of sliding grooves (20) are formed in a circumferential array on the bearing board (1). A sliding block (21) is provided at the end of the supporting board (10) close to the bearing board (1), and the sliding block (21) is slidably connected in the sliding groove (20).

4. The stamping die for removing flash from automotive short pipes according to claim 1, characterized in that: A limiting strip (30) is provided on the board body (27), and the limiting strip (30) is arranged along the length direction of the board body (27); a notch (31) is formed on the teeth of the gear (24), and the limiting strip (30) is embedded in the notch (31).

5. The stamping die for removing flash from automotive short pipes according to claim 1, characterized in that: A supporting rod (32) is fixedly connected to the outer side wall of the support frame (23). The upper end of the supporting rod (32) is fixedly connected to the lower end face of the cylinder block of the cylinder (2). A strip-shaped hole (33) is formed in the supporting rod (32), and the strip-shaped hole (33) is arranged along the length direction of the supporting rod (32). "T-shaped" guiding blocks (34) are provided on both side walls of the pressing plate (9), and the guiding blocks (34) are slidably connected in the strip-shaped hole (33).

6. The stamping die for removing flash from automotive short pipes according to claim 1, characterized in that: A plurality of sliding rods (35) are fixedly connected in a circumferential array on the upper surface of the second ring body (7), and the sliding rods (35) penetrate through the pressing plate (9).

7. The stamping die for removing flash from automotive short pipes according to claim 1, characterized in that: A connecting sleeve (36) is provided between the output end of the motor (12) and the end of the screw rod (11).

Images