A device for flanging a punched part of an automobile

Abstract

The utility model discloses a kind of automobile stamping part flanging device, it is related to automobile parts processing technical field, including workbench, workbench top is equipped with cylinder, cylinder telescopic end is fixedly connected with lifting seat, lifting seat bottom is threadedly connected with stamping block, workbench inside bottom is symmetrically equipped with buffer column, buffer column top is fixedly connected with mounting seat, mounting seat top is movably connected with lower die seat, lower die seat bottom is symmetrically equipped with positioning assembly, lower die seat top is equipped with limit recess, limit recess groove bottom is equipped with through-hole, workbench inside bottom is movably connected with fixed seat, fixed seat top is fixedly connected with lower die, workbench inside bottom is equipped with fixed component.The utility model uses above structure, the quick disassembly of lower die is realized, operation step is greatly simplified, and the stability of lower die when working can be effectively guaranteed, avoid because of connection loosening influence stamping accuracy, while also enhanced the adaptability of equipment under frequent die change scene.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts processing technology, and specifically relates to a flanging device for automotive stamping parts. Background Technology

[0002] The automotive stamping part flanging device is a key piece of equipment for bending and forming the edges of stamped parts. It is widely used in the production of automotive body panels and structural components. Through the coordinated action of the die and power mechanism, the edges of the stamping part blank are bent upwards or outwards at a preset angle or arc, forming a structure with reinforcing ribs, connecting edges, or sealing surfaces. This enhances the rigidity and stability of the part while meeting assembly precision requirements. Its core consists of an upper die, a lower die, a guiding mechanism, and a power drive system. During operation, the die precisely conforms to the edge of the blank, applying a predetermined pressure to complete plastic deformation. It can adapt to flanging processes for parts of different materials and complex shapes, featuring high forming efficiency, stable dimensional accuracy, and strong automation integration. It is an important process equipment in automotive stamping production to ensure the connection strength and appearance quality of parts.

[0003] Announcement No. "CN221064044U" discloses a flanging device for automotive stamping parts, including a processing table. A fixing plate is fixedly connected to the upper surface of the processing table, and a stamping mechanism is provided on the front side of the fixing plate. Four limiting through holes are formed on the upper surface of the processing table. Support columns are slidably arranged on the inner walls of the limiting through holes. Each of the four support columns has a mounting hole at its top. A limiting rod is inserted into the inner wall of each mounting hole, and a lower die base is fixedly connected to the top of each of the four limiting rods. By providing a lower die base and support columns on the surface of the processing table, different lower die bases can be inserted and installed at the ends of the support columns. The stamping mechanism drives the stamping block downwards to perform a stamping operation on the lower die base. The lower die is used to flanging the inner hole of the stamped part on the surface of the lower die base, thereby achieving flanging of the inner hole of the stamped part. Furthermore, it facilitates the replacement of different lower die bases and lower dies according to different stamped workpieces, improving the practicality of the stamping flanging device.

[0004] While the aforementioned utility model facilitates the replacement of different lower die holders and lower dies for different stamping workpieces, thus improving the practicality of the stamping flanging device, the lower die is fixed by bolts. When it is necessary to replace the lower die with different specifications to adapt to the flanging requirements of different stamping parts, tools are required to disassemble and install the bolts, which is relatively cumbersome. This increases the time cost of die replacement and reduces the die replacement efficiency of the equipment. This problem of inconvenient disassembly and assembly is more obvious in scenarios where frequent die replacement is required in mass production, affecting the continuity of the overall processing flow. Utility Model Content

[0005] In response to the problems mentioned in the background art, the purpose of this utility model is to provide a flanging device for automotive stamping parts, so as to solve the problem that when the lower die is fixed by bolts and needs to be replaced with different specifications of lower dies to adapt to different stamping parts flanging requirements, tools are needed to disassemble and install the bolts, which is relatively cumbersome. This increases the time cost of die replacement and reduces the die replacement efficiency of the equipment. This problem of inconvenience in disassembly and assembly is more obvious in the scenario of frequent die replacement in mass production, which affects the continuity of the overall processing flow.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A flanging device for automotive stamping parts includes a worktable, a cylinder mounted on the top of the worktable, a lifting seat fixedly connected to the telescopic end of the cylinder, a stamping block threadedly connected to the bottom of the lifting seat, a stamping hole opened at the bottom of the stamping block, buffer columns symmetrically arranged inside the bottom of the worktable, a mounting seat fixedly connected to the top of the buffer columns, a lower die base movably connected to the top of the mounting seat, positioning components symmetrically installed at the bottom of the lower die base, a limit groove opened at the top of the lower die base, a through hole opened at the bottom of the limit groove, a fixed seat movably connected to the bottom of the worktable, a lower die fixedly connected to the top of the fixed seat, and a fixing component installed inside the bottom of the worktable. The fixing assembly includes a cavity, a first return spring, a movable plate, and a locking block. An assembly block is fixedly connected to the bottom of the worktable. The assembly block has symmetrically shaped cavities inside. A first return spring is fixedly connected to one side of each cavity, and a movable plate is fixedly connected to the other end of the first return spring. The movable plate is slidably connected to the cavity. A locking block is fixedly connected to the other side of the movable plate, with its other end extending outwards from the assembly block. The top of the locking block has a slope. An assembly groove is formed at the bottom of the fixing base, and the assembly block is inserted into the assembly groove. Locking grooves are formed on both sides of the assembly groove. The locking groove is snap-fitted together with an unlocking block that slides inside the locking groove. Limiting blocks are fixedly connected to both sides of the unlocking block. Limiting grooves are opened on both sides inside the locking groove. The limiting blocks and limiting grooves are slidably connected, which realizes the quick assembly and disassembly of the lower mold without the need for tools. This greatly simplifies the operation steps, saves mold change time, and improves mold change efficiency. It can also effectively ensure the stability of the lower mold during operation, avoid the impact of loose connection on stamping accuracy, and enhance the adaptability of the equipment in frequent mold change scenarios, which is conducive to improving the continuity and efficiency of overall production.

[0007] As a preferred technical solution, the positioning component includes mounting holes, a second return spring, and a positioning post. Positioning blocks are symmetrically fixedly connected to the bottom of the lower mold base. Mounting holes are provided on both sides of the positioning blocks, and a second return spring is fixedly connected to the bottom of each mounting hole. A positioning post is fixedly connected to the other end of the second return spring. The positioning post is slidably connected to the inside of the mounting hole. The other end of the positioning post extends outward from the outside of the positioning block and is arc-shaped. A positioning groove is provided on the top of the mounting base, and the positioning block is inserted into the positioning groove. Positioning holes are provided on both sides of the positioning groove, and the positioning post is snap-fitted into the positioning holes. This eliminates the need for tools, simplifying the installation steps of the lower mold base, significantly shortening installation time, and improving replacement efficiency. Furthermore, the snap-fit ​​positioning achieved by the spring force is stable and reliable, effectively preventing displacement of the lower mold base during operation and ensuring machining accuracy. In scenarios requiring frequent replacement of the lower mold base, it significantly enhances equipment adaptability and ensures production continuity.

[0008] As a preferred technical solution, the bottom of the workbench is provided with an internal hole. A buffer spring is fixedly connected to the bottom of the internal hole, and the other end of the buffer spring is fixedly connected to the buffer post. The buffer post and the internal hole are slidably connected. The cooperation of the internal hole, the buffer spring and the buffer post can buffer the impact force of the impact through spring compression, and the sliding connection ensures buffering stability, avoids damage to parts and improves the durability of the equipment.

[0009] As a preferred technical solution, a guide groove is provided on one side of the worktable, and guide blocks are symmetrically fixedly connected to one side of the lifting seat. The guide blocks and guide groove are slidably connected, and the guide groove and guide blocks slide together to limit the movement trajectory of the lifting seat, prevent the stamping block from deviating, ensure that the stamping round hole is accurately fitted into the lower mold, and improve the flanging processing accuracy and stability.

[0010] In summary, the present invention has the following main advantages: First, in this utility model, the matching lower mold, together with the fixed base, is combined with the top of the worktable, so that the assembly block is inserted into the assembly slot. During the insertion process, the pressing force applies pressure to the top inclined surface of the locking block, causing the locking block to drive the moving plate to press against the first return spring. The first return spring is compressed, and the locking block retracts into the cavity. When the locking block moves to the locking slot, the first return spring resets, and the locking block pops out and engages with the locking slot. This achieves quick assembly and disassembly of the lower mold without the need for tools, greatly simplifying the operation steps, saving mold replacement time, improving mold replacement efficiency, and effectively ensuring the stability of the lower mold during operation. It also avoids affecting the stamping accuracy due to loose connection and enhances the adaptability of the equipment in frequent mold replacement scenarios, which is conducive to improving the continuity and efficiency of overall production. Secondly, in this invention, the lower die base matching the workpiece is combined with the mounting base on the buffer column, allowing the positioning block to be inserted into the positioning groove. During insertion, a pressing force is applied to the arc-shaped end of the positioning column, causing it to slide inside the mounting hole. The positioning column presses against the second return spring, which compresses, retracting the positioning column into the mounting hole. When the positioning column moves to the positioning hole, the second return spring resets, and the positioning column pops out and engages with the positioning hole for positioning. No tools are required, simplifying the installation steps of the lower die base, significantly shortening installation time, and improving replacement efficiency. Furthermore, the spring-force-based engagement positioning is stable and reliable, effectively preventing displacement of the lower die base during operation, ensuring machining accuracy. In scenarios requiring frequent lower die base replacement, it significantly enhances equipment adaptability and ensures production continuity. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 3 This is the utility model Figure 2 Enlarged view of part A; Figure 4 This is a three-dimensional cross-sectional view of the lower mold of this utility model; Figure 5 This is the utility model Figure 4 Enlarged view of part B.

[0012] Reference numerals: 1. Worktable; 2. Cylinder; 3. Lifting seat; 4. Stamping block; 5. Stamping round hole; 6. Guide groove; 7. Guide block; 8. Internal hole; 9. Buffer spring; 10. Buffer column; 11. Mounting seat; 12. Positioning block; 13. Positioning groove; 14. Lower die base; 15. Limiting groove; 16. Positioning component; 161. Mounting hole; 162. Second return spring; 163. Positioning column; 17. Positioning hole; 18. Fixed seat; 19. Assembly block; 20. Assembly groove; 21. Fixed component; 211. Cavity; 212. First return spring; 213. Moving plate; 214. Locking block; 22. Locking groove; 23. Unlocking block; 24. Limiting block; 25. Limiting groove; 26. Lower die; 27. Through hole. Detailed Implementation Example

[0013] refer to Figures 1 to 5The automotive stamping part flanging device described in this embodiment includes a workbench 1, a cylinder 2 mounted on the top of the workbench 1, a lifting seat 3 fixedly connected to the telescopic end of the cylinder 2, a stamping block 4 threadedly connected to the bottom of the lifting seat 3, a stamping hole 5 opened at the bottom of the stamping block 4, buffer pillars 10 symmetrically arranged inside the bottom of the workbench 1, a mounting seat 11 fixedly connected to the top of the buffer pillars 10, a lower die seat 14 movably connected to the top of the mounting seat 11, positioning components 16 symmetrically installed at the bottom of the lower die seat 14, a limiting groove 15 opened at the top of the lower die seat 14, a through hole 27 opened at the bottom of the limiting groove 15, a fixed seat 18 movably connected to the bottom of the workbench 1, a lower die 26 fixedly connected to the top of the fixed seat 18, and a fixing component 21 installed inside the bottom of the workbench 1. The fixing assembly 21 includes a cavity 211, a first return spring 212, a moving plate 213, and a locking block 214. An assembly block 19 is fixedly connected to the bottom of the workbench 1. Cavities 211 are symmetrically formed inside the assembly block 19. The first return spring 212 is fixedly connected to one side of each cavity 211, and the moving plate 213 is fixedly connected to the other end of the first return spring 212. The moving plate 213 is slidably connected to the cavity 211. A locking block 214 is fixedly connected to the other side of the moving plate 213. The other end of the locking block 214 extends outward from the outside of the assembly block 19. The top of the locking block 214 has a slope. An assembly groove 20 is formed at the bottom of the fixing seat 18. The assembly block 19 and the assembly groove... Assembly slot 20 is a plug-in type. Both sides of the assembly slot 20 are provided with locking slots 22. The locking block 214 is snapped into the locking slot 22. The matching lower mold 26, together with the fixed base 18, is combined with the top of the worktable 1, so that the assembly block 19 is inserted into the assembly slot 20. During the insertion process, the squeezing force applies pressure to the top slope of the locking block 214, so that the locking block 214 drives the moving plate 213 to press against the first return spring 212. The first return spring 212 is compressed, and the locking block 214 retracts into the cavity 211. When the locking block 214 moves to the locking slot 22, the first return spring 212 returns to its original position, and the locking block 214 pops out and snaps into the locking slot 22 for fixation.

[0014] refer to Figure 5 An unlocking block 23 is slidably connected inside the locking groove 22. Limiting blocks 24 are fixedly connected to both sides of the unlocking block 23. Limiting grooves 25 are opened on both sides inside the locking groove 22. The limiting blocks 24 and the limiting grooves 25 are slidably connected. Pushing the unlocking block 23 causes it to slide inside the locking groove 22. At the same time, the unlocking block 23 drives the limiting blocks 24 to slide inside the limiting grooves 25. The unlocking block 23 pushes the locking block 214, causing the locking block 214 to drive the moving plate 213 to press against the first return spring 212. The first return spring 212 is compressed, and the locking block 214 retracts into the cavity 211. The locking block 214 and the locking groove 22 are no longer engaged.

[0015] refer to Figure 3The positioning component 16 includes mounting holes 161, a second return spring 162, and positioning posts 163. Positioning blocks 12 are symmetrically fixedly connected to the bottom of the lower mold base 14. Mounting holes 161 are provided on both sides of the positioning blocks 12. A second return spring 162 is fixedly connected to the bottom of each mounting hole 161. A positioning post 163 is fixedly connected to the other end of the second return spring 162. The positioning post 163 is slidably connected to the interior of the mounting hole 161. The other end of the positioning post 163 extends outward from the outside of the positioning block 12 and is arc-shaped. A positioning groove 13 is provided on the top of the mounting base 11. The positioning block 12 is inserted into the positioning groove 13. Positioning posts 163 are provided on both sides inside the positioning groove 13. Hole 17, positioning pin 163 is snapped into positioning hole 17. The lower mold base 14 matching the workpiece is combined with the mounting base 11 on the buffer pin 10, so that positioning block 12 is inserted into positioning groove 13. During the insertion process, the squeezing force applies pressure to the arc end of positioning pin 163, so that positioning pin 163 slides inside mounting hole 161. Positioning pin 163 presses against second return spring 162, and second return spring 162 is compressed, positioning pin 163 retracts into mounting hole 161. When positioning pin 163 moves to positioning hole 17, second return spring 162 resets, and positioning pin 163 pops out and snaps into positioning hole 17.

[0016] refer to Figure 2 The bottom of the workbench 1 is provided with an internal hole 8. A buffer spring 9 is fixedly connected to the bottom of the internal hole 8. The other end of the buffer spring 9 is fixedly connected to the buffer column 10. The buffer column 10 is slidably connected to the internal hole 8. When the cylinder 2 is started and the lifting seat 3 is controlled to drive the stamping block 4 to descend for the flanging operation, the stamping block 4 drives the lower die seat 14 and the buffer column 10 to descend. The buffer column 10 slides inside the internal hole 8 and presses against the buffer spring 9.

[0017] refer to Figure 1 The workbench 1 has a guide groove 6 on one side, and the lifting seat 3 has guide blocks 7 symmetrically fixed on one side. The guide blocks 7 and the guide groove 6 are slidably connected. When the cylinder 2 is started, the lifting seat 3 is controlled to drive the stamping block 4 to descend for the flanging operation. The lifting seat 3 drives the guide blocks 7 to slide inside the guide groove 6.

[0018] Operating principle and advantages: During operation, the workpiece to be processed is first placed into the limiting groove 15 of the lower die base 14, aligning the part to be flanged with the lower die 26 at the through hole 27. The cylinder 2 is activated, and the lifting seat 3 descends stably with the cooperation of the guide block 7 and the guide groove 6, causing the stamping block 4 to move downwards. The stamping hole 5 precisely fits into the lower die 26, flanging the edge of the workpiece. During the stamping process, the lower die base 14 is pressed, causing the buffer column 10 to move downwards. The buffer spring 9 is compressed within the internal hole 8, providing cushioning and shock absorption, preventing rigid impact. After the stamping is completed, the cylinder 2 drives the lifting seat 3 to rise and reset. The buffer spring 9 rebounds to reset the lower die seat 14. If the die needs to be replaced, press the unlocking block 23 to disengage the locking block 214 from the locking groove 22, and the fixed seat 18 and the lower die 26 can be quickly removed. At the same time, press the positioning pin 163 to disengage it from the positioning hole 17, and the lower die seat 14 can be replaced. The new die is automatically locked and positioned by the reset spring through the insertion of the assembly block 19 and the assembly groove 20, and the positioning block 12 and the positioning groove 13, so that production can be quickly resumed. This invention enables the rapid assembly and disassembly of the lower mold 26 without the need for tools, greatly simplifying the operation steps, saving mold replacement time, improving mold replacement efficiency, and effectively ensuring the stability of the lower mold 26 during operation, avoiding the impact of loose connections on stamping accuracy. It also enhances the adaptability of the equipment in frequent mold replacement scenarios, which is conducive to improving the continuity and efficiency of overall production.

Claims

1. A flanging device for automotive stamping parts, comprising a worktable (1), characterized in that: A cylinder (2) is installed on the top of the workbench (1). A lifting seat (3) is fixedly connected to the telescopic end of the cylinder (2). A stamping block (4) is threadedly connected to the bottom of the lifting seat (3). A stamping round hole (5) is opened at the bottom of the stamping block (4). A buffer column (10) is symmetrically arranged inside the bottom of the workbench (1). A mounting seat (11) is fixedly connected to the top of the buffer column (10). A lower mold base (14) is movably connected to the top of the mounting seat (11). A positioning component (16) is symmetrically installed at the bottom of the lower mold base (14). A limiting groove (15) is opened on the top of the lower mold base (14). A through hole (27) is opened at the bottom of the limiting groove (15). A fixed seat (18) is movably connected to the bottom of the workbench (1). A lower mold (26) is fixedly connected to the top of the fixed seat (18). A fixing component (21) is installed inside the bottom of the workbench (1).

2. The flanging device for automotive stamping parts according to claim 1, characterized in that: The fixing component (21) includes a cavity (211), a first reset spring (212), a moving plate (213), and a locking block (214). An assembly block (19) is fixedly connected to the bottom of the workbench (1). The assembly block (19) has symmetrical cavities (211) inside. The first reset spring (212) is fixedly connected to one side of the cavity (211). The moving plate (213) is fixedly connected to the other end of the first reset spring (212). The moving plate (213) is slidably connected to the cavity (211). The locking block (214) is fixedly connected to the other side of the moving plate (213). The other end of the locking block (214) extends out of the outside of the assembly block (19). The top of the locking block (214) has an inclined surface.

3. The flanging device for automotive stamping parts according to claim 2, characterized in that: The bottom of the fixed base (18) is provided with an assembly groove (20), the assembly block (19) is inserted into the assembly groove (20), and locking grooves (22) are provided on both sides inside the assembly groove (20), and the locking block (214) is snapped into the locking groove (22).

4. The flanging device for automotive stamping parts according to claim 3, characterized in that: The locking groove (22) is slidably connected to an unlocking block (23), and a limit block (24) is fixedly connected to both sides of the unlocking block (23). A limit groove (25) is opened on both sides of the locking groove (22), and the limit block (24) and the limit groove (25) are slidably connected.

5. The flanging device for automotive stamping parts according to claim 1, characterized in that: The positioning component (16) includes a mounting hole (161), a second return spring (162), and a positioning post (163). The bottom of the lower mold base (14) is symmetrically fixedly connected to a positioning block (12). Mounting holes (161) are provided on both sides of the positioning block (12). The bottom of the mounting hole (161) is fixedly connected to a second return spring (162). The other end of the second return spring (162) is fixedly connected to a positioning post (163). The positioning post (163) is slidably connected to the inside of the mounting hole (161). The other end of the positioning post (163) extends out of the outside of the positioning block (12) and is arc-shaped.

6. The flanging device for automotive stamping parts according to claim 5, characterized in that: The mounting base (11) has a positioning groove (13) on its top. The positioning block (12) is inserted into the positioning groove (13). Positioning holes (17) are provided on both sides inside the positioning groove (13). The positioning post (163) is snapped into the positioning hole (17).

7. The flanging device for automotive stamping parts according to claim 1, characterized in that: The workbench (1) has an internal hole (8) at the bottom. A buffer spring (9) is fixedly connected to the bottom of the internal hole (8). The other end of the buffer spring (9) is fixedly connected to the buffer column (10). The buffer column (10) and the internal hole (8) are slidably connected.

8. The flanging device for automotive stamping parts according to claim 1, characterized in that: The workbench (1) has a guide groove (6) on one side inside, and the lifting seat (3) has a guide block (7) symmetrically fixedly connected on one side. The guide block (7) and the guide groove (6) are slidably connected.

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