Anti-burr sheet metal long-hole integrated stamping forming device

Abstract

The present application relates to the field of sheet metal stamping processing, and discloses a burr-proof integrated stamping forming device for long-hole sheet metal, which comprises a workbench, a bracket is detachably installed on one side of the top end of the workbench, a hydraulic cylinder is installed at the top end of the middle of the bracket, and a connecting plate is connected to the output end of the hydraulic cylinder. The push rod, guide rail, sliding block, linkage arm and extension rod and other structures are arranged, so that the position of the sheet metal support seat can be adjusted during subsequent use. When the sheet metal part to be punched is placed, the sheet metal support seat can be moved out from below the bracket. When the sheet metal part needs to be punched subsequently, the sheet metal support seat can drive the sheet metal part to move synchronously to the position directly below the punch head along with the longitudinal downward pressing of the lower pressing seat, so that the position to be punched can be on the same center line as the punch head, facilitating subsequent normal punching processing. The overall practicality is higher, and the sheet metal part no longer needs to be limited in a small space.

Description

Technical Field

[0001] This invention relates to the field of sheet metal stamping technology, specifically to an integrated stamping forming device for anti-burr sheet metal elongated holes. Background Technology

[0002] In sheet metal components such as electrical control cabinets, new energy vehicle battery boxes, communication base station cabinets, and home appliance housings, elongated holes are a widely used hole type structure, mainly serving functions such as installation position adjustment, heat dissipation and ventilation, and wire harness threading. With the continuous improvement of the requirements for the appearance quality and assembly precision of sheet metal parts in high-end equipment manufacturing, burrs on the edge of elongated holes have become one of the key indicators affecting the product qualification rate.

[0003] In the prior art, when punching sheet metal, the sheet metal needs to be placed in a designated position and limited beforehand. Then, the movement of a hydraulic cylinder is used to push the stamping part, and the stamping part is used to contact the sheet metal to achieve the punching process.

[0004] The inventors of this application discovered in their research that the core defect of the aforementioned prior art is that the workpiece clamping station of existing sheet metal punching equipment generally adopts a fixed layout, with the station position and clamping range being fixed. Before punching, the sheet metal parts must be manually placed in the designated position of the station before being limited and fixed. Due to the constraints of the operating space and clamping stroke of the clamping station itself, when clamping and limiting large-sized sheet metal parts, the working space for workpiece placement, alignment and locking operations is insufficient. This results in a cumbersome clamping and positioning process for large sheet metal parts, poor operational convenience, low clamping efficiency, high manual labor intensity, and difficulty in adapting to the flexible processing needs of sheet metal parts of different specifications. Overall, the practical performance is significantly limited. Summary of the Invention

[0005] This invention provides an integrated stamping and forming device for sheet metal elongated holes with anti-burr properties, which solves the problem of limited space at the working position of the sheet metal parts in the prior art, which affects the clamping of sheet metal parts, and realizes the effect of using a movable clamping station to adapt to the clamping of large-sized sheet metal parts.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated stamping and forming device for anti-burr sheet metal elongated holes, comprising a worktable, a bracket detachably mounted on one side of the top of the worktable, a hydraulic cylinder mounted at the middle of the top of the bracket, a connecting plate connected to the output end of the hydraulic cylinder, a lower pressure seat fixedly mounted at the bottom of the other end of the connecting plate, a stamping head fixedly mounted at the middle of the bottom end of the lower pressure seat, a vertical rod penetrating through the inner side of one end of the lower pressure seat, a push rod fixedly mounted on the surface of one end of the lower pressure seat, a guide rail detachably mounted on the side of the top of the worktable away from the bracket, a slider slidably connected to the outer side of the guide rail, a movable seat mounted on the top of the slider, a sheet metal support seat mounted on the top of the movable seat, an extension rod fixedly mounted on the side wall of the movable seat, a linkage arm distributed on one side of the movable seat, a contact wheel rotatably connected to the side wall of one end of the linkage arm, a sliding groove opened on the inner side of the other end of the linkage arm, and a guide block fixedly mounted on the inner wall of the slider.

[0007] By adopting the above technical solution, it is convenient to adjust the position of the sheet metal support base during subsequent use. That is, when placing the sheet metal part to be punched, the sheet metal support base can be moved out of the bracket. When the sheet metal part needs to be stamped later, as the lower pressure seat presses down vertically, the sheet metal support base can move the sheet metal part synchronously to the underside of the stamping head, so that the position to be punched can be on the same center line as the stamping head, which facilitates the subsequent normal punching process. The overall practicality is higher, and it is no longer necessary to limit the sheet metal part in a narrow space.

[0008] Preferably, a movable rod extends through the inner side of the sheet metal support base. An auxiliary sliding plate is fitted on the outer ring surface of one end of the movable rod. A return spring is fixedly connected to one side of the auxiliary sliding plate. A clamping plate is fixedly provided at the other end of the movable rod. A rubber pad is fixedly provided on the surface of the other end of the clamping plate. A protruding strip is fixedly provided at the bottom of one end of the clamping plate. A groove is provided on one side of the top of the sheet metal support base.

[0009] Preferably, a connecting rod is fixedly provided on one side of the bottom of the movable seat, and a rack is fixedly connected to the bottom of the connecting rod. A side plate is fixedly provided on one side of the bottom of the worktable, and a driven gear is rotatably connected to the bottom of the side plate. A screw is fixedly connected to the center of the top of the driven gear.

[0010] Preferably, a lifting seat is distributed on one side of the side plate, a threaded sleeve is fixed on one side of the bottom of the lifting seat, a drive motor is fixed in the middle of the bottom end of the lifting seat, and a grinding disc is connected to the output end of the drive motor.

[0011] Preferably, the bottom periphery of the grinding disc is provided with an annular groove, one end of the annular groove is connected to a suction hole, a retaining ring is engaged on the inner side of the annular groove, a dust suction pipe is fixedly connected to one side of the bottom of the retaining ring, the other end of the dust suction pipe is connected to an air pump, and a collection box is installed on the bottom inner side of the workbench.

[0012] Preferably, the inner sides of both ends of the lower pressure seat are provided with through holes whose diameter is adapted to the outer diameter of the vertical rod, and the lower pressure seat is slidably connected to the vertical rod through the through holes.

[0013] Preferably, the top two sides of the guide rail are provided with slots whose diameter is adapted to the outer diameter of the guide block, and the slider is slidably connected to the slots through the guide block.

[0014] Preferably, the linkage arm is rotatably connected to the worktable via a bearing seat, and a torsion spring is provided between the linkage arm and the bearing seat.

[0015] Preferably, the clamping plate is slidably connected to the sheet metal support base via a movable rod, and the movable rod is symmetrically distributed along the vertical center line of the sheet metal support base.

[0016] Preferably, the rack is meshed with the driven gear through its teeth, and the driven gear is rotatably connected to the bottom of the side plate.

[0017] This invention provides an integrated stamping and forming device for burr-resistant elongated holes in sheet metal. It offers the following advantages: 1. This invention, through its designed push rod, guide rail, slider, linkage arm, and extension rod, facilitates the adjustment of the sheet metal support position during subsequent use. Specifically, when placing the sheet metal part to be punched, the support can be moved out of the bracket. When subsequent stamping is required, the sheet metal support moves synchronously with the sheet metal part as the lower pressure seat presses down, bringing it directly below the stamping head. This ensures the punching position is aligned with the stamping head, facilitating normal punching. The overall practicality is higher, and there is no longer a need to limit the sheet metal part in confined spaces.

[0018] 2. The present invention, through the structure of rack, driven gear, screw and lifting seat, can facilitate the adjustment of the position of the grinding disc during subsequent use as the sheet metal support seat moves. When the sheet metal support seat moves to below the stamping head, the grinding disc separates from the sheet metal. When the sheet metal is stamped and moved out of the bottom of the bracket, the grinding disc will move to the contact position with the bottom of the sheet metal under the linkage of the gear and rack, thereby grinding the burrs generated on the surface of the sheet metal.

[0019] 3. The present invention, through the structure of the annular groove, suction hole, retaining ring and dust suction pipe, can effectively adsorb and treat the waste generated during the grinding process when deburring sheet metal parts, thereby preventing the waste from spreading in the surrounding environment and affecting the normal stamping process of the subsequent stamping forming device on the sheet metal parts. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a bottom view diagram of the present invention; Figure 3 This is a bottom view of the worktable of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a side view of the guide rail of the present invention; Figure 6 This is a side view of the movable seat of the present invention; Figure 7 This is a side view of the lifting seat of the present invention; Figure 8 This is a bottom view of the grinding disc of the present invention; Figure 9 This is a schematic cross-sectional view of the sheet metal support base of the present invention; Figure 10 This is a side view of the retaining ring of the present invention.

[0021] The components are as follows: 1. Workbench; 2. Support; 3. Hydraulic cylinder; 4. Connecting plate; 5. Lower press seat; 6. Punch head; 7. Vertical rod; 8. Push rod; 9. Guide rail; 10. Slider; 11. Moving seat; 12. Sheet metal support seat; 13. Extension rod; 14. Linkage arm; 15. Contact wheel; 16. Slide groove; 17. Guide block; 18. Movable rod; 19. Auxiliary slide plate; 20. Return spring; 21. Clamping plate; 22. Rubber pad; 23. Protrusion; 24. Groove; 25. Connecting rod; 26. Rack; 27. Side plate; 28. Driven gear; 29. ​​Screw; 30. Lifting seat; 31. Threaded sleeve; 32. Drive motor; 33. Grinding disc; 34. Annular groove; 35. Suction hole; 36. Snap ring; 37. Dust suction pipe; 38. Air pump; 39. Collection box. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 10 This invention provides an integrated stamping and forming device for sheet metal elongated holes with anti-burr properties, including a workbench 1. A bracket 2 is detachably installed on one side of the top of the workbench 1. A hydraulic cylinder 3 is installed in the middle of the top of the bracket 2. The output end of the hydraulic cylinder 3 is connected to a connecting plate 4. A lower pressure seat 5 is fixedly installed at the bottom of the other end of the connecting plate 4. A stamping head 6 is fixedly installed in the middle of the bottom end of the lower pressure seat 5. A vertical rod 7 passes through the inner side of one end of the lower pressure seat 5. A push rod 8 is fixedly installed on the surface of one end of the lower pressure seat 5. A guide rail 9 is detachably installed on the side of the top of the workbench 1 away from the bracket 2. A slider 10 is slidably connected to the outer side of the guide rail 9. A movable seat 11 is installed at the top of the slider 10. A sheet metal support seat 12 is installed at the top of the movable seat 11. An extension rod 13 is fixedly installed on the side wall of the movable seat 11. A linkage arm 14 is distributed on one side of the movable seat 11. A contact wheel 15 is rotatably connected to the side wall of one end of the linkage arm 14. A groove 16 is opened on the inner side of the other end of the linkage arm 14. A guide block 17 is fixedly installed on the inner wall of the slider 10. Specifically, during use, as the sheet metal part is placed between two sheet metal support seats 12, the hydraulic cylinder 3 fixed at the top center of the bracket 2 operates. The hydraulic cylinder 3 longitudinally pushes the connecting plate 4 connected to its output end, causing the connecting plate 4 to move longitudinally and push the lower pressure seat 5 fixedly connected to its bottom side. As the lower pressure seat 5 moves longitudinally, it moves along the vertical rod 7 through the through holes on both sides, thereby improving the stability of the lower pressure seat 5 during movement. Simultaneously, the movement of the lower pressure seat 5 drives the push rod 8 to move as well. Then, the push rod 8 gradually presses down to contact the contact wheel 15 and pushes the contact wheel 15. At this time, the contact wheel 15 is pressed down by force. The downward pressure will cause the linkage arm 14 to move accordingly, causing the linkage arm 14 to rotate along the top side of the worktable 1, and causing the torsion spring fixedly connected to one side to deform and generate a reverse force. Then, under the action of the linkage arm 14, the extension rod 13 extending inside it will also move through the slide groove 16 opened on one side wall of the linkage arm 14. The extension rod 13 will drive the moving seat 11 to slide along the guide rail 9. When the moving seat 11 slides along the guide rail 9, it will drive the sheet metal support seat 12 to move synchronously, so that the sheet metal support seat 12 will drive the sheet metal to move directly below the stamping head 6, and then use the stamping head 6 to stamp the sheet metal. When the movable seat 11 moves, it drives the slider 10 to slide along the guide rail 9. At this time, the guide blocks 17 symmetrically arranged on the inner wall of the slider 10 are engaged in the slots opened on the side wall of the guide rail 9. As the slider 10 moves, it drives the guide blocks 17 to move along the slots, thereby improving the stability of the movable seat 11 during the movement.

[0024] Please see the appendix Figure 9 A movable rod 18 passes through the inner side of the sheet metal support base 12. An auxiliary sliding plate 19 is fitted on the outer ring surface of one end of the movable rod 18. A return spring 20 is fixedly connected to one side of the auxiliary sliding plate 19. A clamping plate 21 is fixedly provided at the other end of the movable rod 18. A rubber pad 22 is fixedly provided on the surface of the other end of the clamping plate 21. A protruding strip 23 is fixedly provided at the bottom of one end of the clamping plate 21. A groove 24 is opened on one side of the top of the sheet metal support base 12. Specifically, during use, the clamping plate 21 is first moved laterally. At this time, the lateral movement of the clamping plate 21 pushes the movable rod 18, which in turn causes the movable rod 18 to move laterally inside the sheet metal support seat 12. As the movable rod 18 moves, it can also drive the auxiliary slide plate 19 to move laterally. During the lateral movement of the auxiliary slide plate 19, the return spring 20 is deformed, generating a reverse force. Then, the sheet metal to be stamped is placed between the two sheet metal support seats 12 and the lateral force applied to the clamping plate 21 is released. At this time, under the reverse force generated by the deformation of the return spring 20, it is convenient for the auxiliary slide plate 19 to drive the movable rod 18 to perform lateral reset. Thus, the movable rod 18 pushes the clamping plate 21, causing the clamping plates 21 on both sides to move towards each other to clamp and limit the sheet metal, ensuring its stability during the subsequent stamping process. The rubber pad 22 is used to increase the friction between the clamping plate 21 and the sheet metal, serving the purpose of anti-slip and protection.

[0025] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 4 Appendix Figure 5 Appendix Figure 6 and attached Figure 7 A connecting rod 25 is fixedly provided on one side of the bottom of the movable seat 11. A rack 26 is fixedly connected to the bottom of the connecting rod 25. A side plate 27 is fixedly provided on one side of the bottom of the worktable 1. A driven gear 28 is rotatably connected to the bottom of the side plate 27. A screw 29 is fixedly connected to the center of the top of the driven gear 28. A lifting seat 30 is distributed on one side of the side plate 27. A threaded sleeve 31 is fixedly provided on one side of the bottom of the lifting seat 30. A drive motor 32 is fixedly provided in the middle of the bottom end of the lifting seat 30. A grinding disc 33 is connected to the output end of the drive motor 32. Specifically, as the movable seat 11 moves, the connecting rod 25 also moves accordingly. The movement of the connecting rod 25 drives the rack 26 to move. Since the rack 26 is meshed with the driven gear 28 through its teeth, the driven gear 28 can rotate as the rack 26 moves. Since the driven gear 28 is fixedly connected to the screw 29, the screw 29 can also rotate as the driven gear 28 rotates. The threaded connection between the screw 29 and the threaded sleeve 31 allows the threaded sleeve 31 to move axially along the screw 29. Under the action of the threaded sleeve 31, the lifting seat 30 can drive the grinding disc 33 to adjust its longitudinal position. When the grinding disc 33 moves to contact the surface of the sheet metal part, the drive motor 32 works to drive the grinding disc 33 to rotate. The rotation of the grinding disc 33 is used to achieve the grinding treatment of the surface of the sheet metal part. It is worth noting that the rack 26 can move in both directions under the action of the moving seat 11. The rack 26 can drive the driven gear 28 to rotate in different directions by moving in different directions. As the driven gear 28 rotates in different directions, the screw 29 can drive the lifting seat 30 to perform longitudinal lifting.

[0026] Please see the appendix Figure 7 Appendix Figure 8 and attached Figure 10 The bottom periphery of the grinding disc 33 is provided with an annular groove 34. One end of the annular groove 34 is connected to a suction hole 35. A retaining ring 36 is engaged on the inner side of the annular groove 34. A dust suction pipe 37 is fixedly connected to one side of the bottom of the retaining ring 36. An air pump 38 is connected to the other end of the dust suction pipe 37. A collection box 39 is installed on the inner side of the bottom of the workbench 1. Specifically, when the grinding disc 33 grinds and deburrs the surface of the stamped sheet metal part, the air pump 38 works to generate suction force. Under the action of suction force, the waste generated during grinding is drawn into the retaining ring 36 through the suction hole 35. Since the retaining ring 36 is a hollow structure and is connected to the dust suction pipe 37, the waste is drawn into the inside of the air pump 38. Then, under the action of the air pump 38, the air mixed with waste is further drawn into the collection box 39, which is convenient for the subsequent centralized treatment of waste.

[0027] Please see the appendix Figure 1 The inner sides of both ends of the lower pressure seat 5 are provided with through holes whose diameter is adapted to the outer diameter of the vertical rod 7. The lower pressure seat 5 is slidably connected to the vertical rod 7 through the through holes. Specifically, when the lower pressure seat 5 moves longitudinally, it can slide along the vertical rod 7 through the through hole, and the stability of the lower pressure seat 5 during movement can be achieved by combining the symmetrical arrangement of the vertical rods 7 on both sides.

[0028] Please see the appendix Figure 5 and attached Figure 6 The top two sides of the guide rail 9 are provided with slots whose diameter is adapted to the outer diameter of the guide block 17, and the slider 10 is slidably connected to the slots through the guide block 17. Specifically, when the slider 10 slides along the guide rail 9, the slider 10 will slide along the slot opened in the side wall of the guide rail 9 through the guide block 17, thereby improving the stability of the slider 10 during the movement.

[0029] Please see the appendix Figure 5 The linkage arm 14 is rotatably connected to the worktable 1 through the bearing seat, and a torsion spring is provided between the linkage arm 14 and the bearing seat. Specifically, when the linkage arm 14 is subjected to force, it will rotate along one side of the top of the worktable 1. As the linkage arm 14 rotates, it can cause the torsion spring fixedly connected to it to deform and generate a reverse force. Then, when the pressure applied to the linkage arm 14 disappears, the reverse force can be used to facilitate the subsequent reset of the linkage arm 14.

[0030] Please see the appendix Figure 9 The clamping plate 21 is slidably connected to the sheet metal support base 12 via the movable rod 18, and the movable rod 18 is symmetrically distributed along the vertical center line of the sheet metal support base 12. Specifically, when the movable rod 18 moves laterally, it pushes the clamping plate 21, which facilitates the subsequent use of the movement of the clamping plate 21 to clamp and limit the sheet metal parts.

[0031] Please see the appendix Figure 4 and attached Figure 5 The rack 26 is meshed with the driven gear 28 through its teeth, and the driven gear 28 is rotatably connected to the bottom of the side plate 27. Specifically, since the rack 26 is meshed with the driven gear 28 through its teeth, the rotation of the driven gear 28 can be easily achieved by the movement of the rack 26.

[0032] Workflow: In use, the clamping plate 21 is first moved laterally. At this time, the lateral movement of the clamping plate 21 pushes the movable rod 18, which in turn causes the movable rod 18 to move laterally inside the sheet metal support seat 12. As the movable rod 18 moves, it can also drive the auxiliary slide plate 19 to move laterally. During the lateral movement of the auxiliary slide plate 19, the return spring 20 is deformed, which generates a reverse force. Then, the sheet metal part to be stamped is placed between the two sheet metal support seats 12 and the lateral force applied to the clamping plate 21 is released. At this time, under the reverse force generated by the deformation of the return spring 20, it is convenient to drive the movable rod 18 to perform lateral reset. Thus, the movable rod 18 pushes the clamping plate 21, causing the clamping plates 21 on both sides to move towards each other to clamp and limit the sheet metal part, ensuring its stability during the subsequent stamping process. The rubber pad 22 is used to increase the friction between the clamping plate 21 and the sheet metal part, which serves the purpose of anti-slip and protection. As the sheet metal parts are positioned, the hydraulic cylinder 3, fixed at the top center of the bracket 2, begins to operate. The hydraulic cylinder 3 longitudinally pushes the connecting plate 4 connected to its output end, causing the connecting plate 4 to move longitudinally and push the lower pressure seat 5 fixedly connected to its bottom side. As the lower pressure seat 5 moves longitudinally, it moves along the vertical rod 7 through the through holes on both sides, thus improving the stability of the lower pressure seat 5 during movement. Simultaneously, the movement of the lower pressure seat 5 drives the push rod 8 to move as well. The push rod 8 then gradually presses down to contact the contact wheel 15 and pushes it. The contact wheel 15 is then pressed down, causing the linkage arm 14 to move accordingly, rotating along one side of the top of the worktable 1, and causing the torsion spring fixedly connected to one side to rotate as well. Deformation generates a reverse force. Then, under the action of the linkage arm 14, the extension rod 13 extending inside it will also move through the slide groove 16 opened on one side wall of the linkage arm 14. The extension rod 13 will drive the moving seat 11 to slide along the guide rail 9. When the moving seat 11 slides along the guide rail 9, it will drive the sheet metal support seat 12 to move synchronously. This will cause the sheet metal support seat 12 to move the sheet metal to the bottom of the stamping head 6. Then, the stamping head 6 will be used to stamp the sheet metal. After the stamping is completed, the hydraulic cylinder 3 will drive the connecting plate 4 to reset the lower pressure seat 5 longitudinally. At this time, under the linkage of the structure, the moving seat 11 will drive the sheet metal support seat 12 to move to the initial position, so that the sheet metal is moved out of the bottom of the bracket 2, making it easier to remove the stamped sheet metal later. It is worth noting that as the movable seat 11 moves, the connecting rod 25 also moves accordingly. The movement of the connecting rod 25 then drives the rack 26 to move. Since the rack 26 is meshed with the driven gear 28 through its teeth, the movement of the rack 26 causes the driven gear 28 to rotate. Because the driven gear 28 is fixedly connected to the screw 29, the rotation of the driven gear 28 causes the screw 29 to rotate as well. The threaded connection between the screw 29 and the threaded sleeve 31 causes the threaded sleeve 31 to move axially along the screw 29. Under the action of the threaded sleeve 31, the lifting seat 30 drives the grinding disc 33 to move accordingly. The longitudinal position is adjusted, and when the grinding disc 33 moves to contact the surface of the sheet metal part, the drive motor 32 works to drive the grinding disc 33 to rotate. The rotation of the grinding disc 33 is used to grind the surface of the sheet metal part. When the grinding disc 33 grinds and deburrs the surface of the stamped sheet metal part, the air pump 38 works to generate suction force. At this time, under the action of suction force, the waste generated during grinding will be drawn into the retaining ring 36 through the suction hole 35. Since the retaining ring 36 is a hollow structure and is connected to the dust suction pipe 37, the waste will be drawn into the inside of the air pump 38. Then, under the action of the air pump 38, the air mixed with waste can be further drawn into the collection box 39 for subsequent centralized treatment of waste.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A burr-resistant sheet metal elongated hole integrated stamping forming device, comprising a worktable (1), characterized in that, A bracket (2) is detachably mounted on one side of the top of the workbench (1). A hydraulic cylinder (3) is mounted in the middle of the top of the bracket (2). A connecting plate (4) is connected to the output end of the hydraulic cylinder (3). A lower pressure seat (5) is fixedly mounted at the bottom of the other end of the connecting plate (4). A punch head (6) is fixedly mounted in the middle of the bottom end of the lower pressure seat (5). A vertical rod (7) passes through the inner side of one end of the lower pressure seat (5). A push rod (8) is fixedly mounted on the surface of one end of the lower pressure seat (5). A guide rail (9) is detachably mounted on the side of the top of the workbench (1) away from the bracket (2). The guide rail (9) is slidably connected to a slider (10). A movable seat (11) is installed at the top of the slider (10). A sheet metal support seat (12) is installed at the top of the movable seat (11). An extension rod (13) is fixedly provided on the side wall of the movable seat (11). A linkage arm (14) is distributed on one side of the movable seat (11). A contact wheel (15) is rotatably connected to the side wall of one end of the linkage arm (14). A sliding groove (16) is opened on the inner side of the other end of the linkage arm (14). A guide block (17) is fixedly provided on the inner wall of the slider (10).

2. The anti-burr sheet metal elongated hole integrated stamping forming device according to claim 1, characterized in that, A movable rod (18) runs through the inner side of the sheet metal support base (12). An auxiliary sliding plate (19) is fitted on the outer ring surface of one end of the movable rod (18). A return spring (20) is fixedly connected to one side of the auxiliary sliding plate (19). A clamping plate (21) is fixedly provided at the other end of the movable rod (18). A rubber pad (22) is fixedly provided on the surface of the other end of the clamping plate (21). A protruding strip (23) is fixedly provided at the bottom of one end of the clamping plate (21). A groove (24) is opened on one side of the top of the sheet metal support base (12).

3. The anti-burr sheet metal elongated hole integrated stamping forming device according to claim 1, characterized in that, A connecting rod (25) is fixedly provided on one side of the bottom of the movable seat (11), and a rack (26) is fixedly connected to the bottom of the connecting rod (25). A side plate (27) is fixedly provided on one side of the bottom of the workbench (1), and a driven gear (28) is rotatably connected to the bottom of the side plate (27). A screw (29) is fixedly connected to the center of the top of the driven gear (28).

4. The anti-burr sheet metal elongated hole integrated stamping forming device according to claim 3, characterized in that, A lifting seat (30) is distributed on one side of the side plate (27). A threaded sleeve (31) is fixed on one side of the bottom of the lifting seat (30). A drive motor (32) is fixed in the middle of the bottom end of the lifting seat (30). A grinding disc (33) is connected to the output end of the drive motor (32).

5. The anti-burr sheet metal elongated hole integrated stamping forming device according to claim 4, characterized in that, The grinding disc (33) has an annular groove (34) on its bottom periphery. One end of the annular groove (34) is connected to a suction hole (35). A retaining ring (36) is engaged on the inner side of the annular groove (34). A vacuum pipe (37) is fixedly connected to one side of the bottom of the retaining ring (36). An air pump (38) is connected to the other end of the vacuum pipe (37). A collection box (39) is installed on the inner side of the bottom of the workbench (1).

6. The anti-burr sheet metal elongated hole integrated stamping forming device according to claim 1, characterized in that, The inner sides of both ends of the lower pressure seat (5) are provided with through holes whose diameter is adapted to the outer diameter of the vertical rod (7). The lower pressure seat (5) and the vertical rod (7) are slidably connected through the through holes.

7. The anti-burr sheet metal elongated hole integrated stamping forming device according to claim 1, characterized in that, The top of the guide rail (9) has slots on both sides with a diameter that matches the outer diameter of the guide block (17). The slider (10) is slidably connected to the slots through the guide block (17).

8. The anti-burr sheet metal elongated hole integrated stamping forming device according to claim 1, characterized in that, The linkage arm (14) is rotatably connected to the worktable (1) through a bearing seat, and a torsion spring is provided between the linkage arm (14) and the bearing seat.

9. The anti-burr sheet metal elongated hole integrated stamping forming device according to claim 2, characterized in that, The clamp (21) is slidably connected to the sheet metal support base (12) via the movable rod (18), and the movable rod (18) is symmetrically distributed along the vertical center line of the sheet metal support base (12).

10. The anti-burr sheet metal elongated hole integrated stamping forming device according to claim 3, characterized in that, The rack (26) is meshed with the driven gear (28) through its teeth, and the driven gear (28) is rotatably connected to the bottom of the side plate (27).

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