A punch and trim die for an automobile front door

Abstract

The utility model relates to the technical field of automobile front door part machining, disclose a kind of automobile front door punching and trimming die, including machine base, lower punching and trimming die and upper punching and trimming die, further include: convenient die changing mechanism, the convenient die changing mechanism is set at the top of machine base, the convenient die changing mechanism is used to quickly replace upper punching and trimming die;Fine adjustment mechanism, the fine adjustment mechanism is set at the top of machine base.The utility model is in overall design by convenient die changing mechanism, user is by pulling down and rotating to the damping rotating block, different fitting block can be embedded to the inside of fitting groove, that is, the function of quickly replacing upper punching and trimming die in middle part is realized, and in cooperation with the design of fine adjustment mechanism, the position of part can be adjusted, that is, the function of processing different holes on different positions of front door part is realized, without the dismounting treatment of repositioning front door part, the efficiency of production is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive front door parts processing technology, specifically to an automotive front door punching and trimming die. Background Technology

[0002] A front door punching and trimming die is a type of mold used in the manufacture of automotive front door parts. It is primarily used for punching and trimming the edges of these parts. This type of die plays a crucial role in the automotive manufacturing process, ensuring the precise manufacturing and high-quality production of front door parts.

[0003] Traditional automotive front door punching and trimming die equipment only integrates a single upper die. In actual production, it is often necessary to open different holes on a single front door part. At this time, the part also needs to be disassembled and moved to different die equipment for punching, which will affect production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a punching and trimming mold for automobile front doors, which solves the problem that existing mold equipment only integrates a single upper mold, making it impossible to continuously open different holes on a single part.

[0005] This utility model provides the following technical solution: a punching and trimming die for a car front door, comprising a base, a lower punching and trimming die, and an upper punching and trimming die, and further comprising:

[0006] A convenient mold changing mechanism is provided on the top of the machine base and is used to quickly replace the upper punching and trimming mold.

[0007] A fine-tuning mechanism is provided on the top of the machine base, and is used to fix and fine-tune the position of the part.

[0008] The convenient mold changing mechanism includes a punching and trimming drive assembly and a mold changing assembly. The mold changing assembly includes a side support block, a slide rod slidably connected to the inner wall of the side support block, a connecting block fixedly installed at the bottom of the slide rod, an elastic element fixedly connected to the bottom of the side support block, the bottom of the elastic element being fixedly connected to the top of the connecting block, and a damping rotating block rotatably connected to the bottom of the connecting block.

[0009] As a preferred embodiment of the above technical solution, a connecting arm is fixedly installed on the outer wall of the damping rotating block, the upper punching and trimming mold is detachably connected to the bottom of the connecting arm, and a fitting block is fixedly connected to the top of the connecting arm.

[0010] As a preferred embodiment of the above technical solution, the punching and trimming drive assembly includes a support frame, which is fixedly installed on the top of the machine base. A hydraulic cylinder is fixedly installed on the top of the support frame. The telescopic end of the hydraulic cylinder extends to the bottom of the support frame and is fixedly connected to a pressing block. A fitting groove is provided at the bottom of the pressing block, and a side support block is fixedly installed on the side wall of the pressing block.

[0011] As a preferred embodiment of the above technical solution, the fine-tuning mechanism includes two symmetrical support seats. Both symmetrical support seats are fixedly installed on the top of the machine base. A crossbar is fixedly installed between adjacent sides of the two symmetrical support seats. A first lead screw is rotatably connected between adjacent sides of the two symmetrical support seats. A first sliding seat is slidably connected to the outer wall of the crossbar and the first lead screw.

[0012] As a preferred embodiment of the above technical solution, a connecting frame is fixedly installed on the top of the first sliding seat, a longitudinal rod is fixedly installed between the front and back sides of the inner wall of the connecting frame, a second lead screw is rotatably connected between the front and back sides of the inner wall of the connecting frame, a second sliding seat is slidably connected to the outer walls of the longitudinal rod and the second lead screw, a support platform is detachably connected to the top of the second sliding seat, and the lower punching and trimming die is fixedly installed on the top of the support platform.

[0013] As a preferred embodiment of the above technical solution, side supports are fixedly installed on both sides of the second sliding seat, a clamping cylinder is fixedly installed on one side of the side support, and the telescopic end of the clamping cylinder extends to the other side of the side support and is detachably connected to a clamping block.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model, through the design of a convenient mold-changing mechanism, allows users to insert different mating blocks into the mating groove by pulling down and rotating the damping rotating block. This enables the quick replacement of the upper punching and trimming mold in the middle. Combined with the design of the fine-tuning mechanism, the position of the parts can be adjusted, thus enabling the processing of different holes in different positions on the front door parts. This eliminates the need for disassembly and reassembly of the front door parts, improving production efficiency and reducing equipment setup costs. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the pressure block of this utility model;

[0018] Figure 3 This is a schematic diagram of the side support block of this utility model;

[0019] Figure 4 This is a schematic diagram of the micro-adjustment mechanism of this utility model.

[0020] In the diagram: 1. Machine base; 11. Lower punching and trimming die; 12. Upper punching and trimming die; 2. Convenient die changing mechanism; 21. Support frame; 22. Hydraulic cylinder; 23. Lower pressing block; 24. Fitting groove; 25. Side support block; 251. Slide rod; 252. Connecting block; 253. Damping rotation block; 254. Elastic element; 255. Connecting arm; 256. Fitting block; 3. Fine-tuning mechanism; 31. Symmetrical support; 32. Crossbar; 33. First lead screw; 34. First sliding seat; 35. Connecting frame; 36. Vertical rod; 37. Second lead screw; 38. Second sliding seat; 381. Side support frame; 382. Clamping cylinder; 383. Clamping block; 39. Support platform. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a punching and trimming die for a car front door, including a base 1, a lower punching and trimming die 11, and an upper punching and trimming die 12, and further including:

[0023] The convenient mold changing mechanism 2 is located on the top of the machine base 1 and is used to quickly replace the upper punching and trimming mold 12.

[0024] Fine-tuning mechanism 3 is located on the top of machine base 1. Fine-tuning mechanism 3 is used to fix and fine-tune the position of the part.

[0025] The convenient mold changing mechanism 2 includes a punching and trimming drive assembly and a mold changing assembly. The mold changing assembly includes a side support block 25. A slide rod 251 is slidably connected to the inner wall of the side support block 25. A connecting block 252 is fixedly installed at the bottom of the slide rod 251. An elastic element 254 is fixedly connected to the bottom of the side support block 25. The bottom of the elastic element 254 is fixedly connected to the top of the connecting block 252. A damping rotating block 253 is rotatably connected to the bottom of the connecting block 252. A groove is provided at the bottom of the damping rotating block 253, which facilitates... For users to pull down and rotate the damping rotating block 253, if it is necessary to replace the upper punching and trimming mold 12, first pull the damping rotating block 253 down, then rotate the damping rotating block 253 to rotate the upper punching and trimming mold 12 to be used to the bottom of the fitting groove 24, and then release the damping rotating block 253. Through the elastic force of the elastic element 254, the upper punching and trimming mold 12 can be moved up, thus realizing the function of quickly replacing the upper punching and trimming mold 12 in the middle.

[0026] As one implementation method in this embodiment, such as Figure 3 As shown, a connecting arm 255 is fixedly installed on the outer wall of the damping rotating block 253. The upper punching and trimming mold 12 is detachably connected to the bottom of the connecting arm 255. A mating block 256 is fixedly connected to the top of the connecting arm 255. During the switching of the upper punching and trimming mold 12, the mating blocks 256 corresponding to different upper punching and trimming molds 12 will be embedded into the interior of the mating groove 24, improving the connection effect between the upper punching and trimming mold 12 and the lower pressing block 23. This structure is provided with four upper punching and trimming molds 12. The specifications of the four upper punching and trimming molds 12 are different, and the upper punching and trimming mold 12 with high usage frequency is used. The upper punching and trimming mold 12 is installed at the bottom of the connecting arm 255 by means of bolts. Users can replace the upper punching and trimming molds 12 of different specifications.

[0027] As one implementation method in this embodiment, such as Figure 1 As shown, the punching and trimming drive assembly includes a support frame 21, which is fixedly installed on the top of the base 1. A hydraulic cylinder 22 is fixedly installed on the top of the support frame 21. The telescopic end of the hydraulic cylinder 22 extends to the bottom of the support frame 21 and is fixedly connected to a lower pressing block 23. A fitting groove 24 is provided at the bottom of the lower pressing block 23. A side support block 25 is fixedly installed on the side wall of the lower pressing block 23. After the part is positioned, the hydraulic cylinder 22 is controlled to extend, which can drive the entire lower pressing block 23 and the upper punching and trimming mold 12 to move downward, thereby realizing the punching and trimming of the front door part.

[0028] As one implementation method in this embodiment, such as Figure 4 As shown, the fine-tuning mechanism 3 includes two symmetrical support seats 31. Both symmetrical support seats 31 are fixedly installed on the top of the base 1. A crossbar 32 is fixedly installed between the adjacent sides of the two symmetrical support seats 31. A first lead screw 33 is rotatably connected between the adjacent sides of the two symmetrical support seats 31. A first sliding seat 34 is slidably connected to the outer wall of the crossbar 32 and the first lead screw 33. Manually rotating the first lead screw 33 can drive the first sliding seat 34 to slide left and right on the outer wall of the crossbar 32, thus realizing the function of fine-tuning the front door parts left and right.

[0029] As one implementation method in this embodiment, such as Figure 4As shown, a connecting frame 35 is fixedly installed on the top of the first sliding seat 34. A longitudinal rod 36 is fixedly installed between the front and back sides of the inner wall of the connecting frame 35. A second lead screw 37 is rotatably connected between the front and back sides of the inner wall of the connecting frame 35. A second sliding seat 38 is slidably connected to the outer wall of the longitudinal rod 36 and the second lead screw 37. A support platform 39 is detachably connected to the top of the second sliding seat 38. The lower punching and trimming mold 11 is fixedly installed on the top of the support platform 39. Manually rotating the second lead screw 37 can drive the second sliding seat 38 to slide back and forth on the outer wall of the longitudinal rod 36, thus realizing the function of fine-tuning the front door parts.

[0030] As one implementation method in this embodiment, such as Figure 4 As shown, side supports 381 are fixedly installed on both sides of the second sliding seat 38. A clamping cylinder 382 is fixedly installed on one side of the side support 381. The telescopic end of the clamping cylinder 382 extends to the other side of the side support 381 and is detachably connected to a clamping block 383. After the part is inserted into the top of the lower punching and trimming mold 11, the clamping cylinder 382 is controlled to extend, which can drive the clamping block 383 to move towards the outer wall of the part, thus realizing the function of clamping the part. The support platform 39 is installed on the top of the second sliding seat 38 by bolts, so that the user can replace the lower punching and trimming mold 11 of different specifications to suit different parts. The clamping block 383 is installed on the end of the clamping cylinder 382 by bolts, and the user can also replace the clamping block 383 during maintenance.

[0031] Working principle: During use, the part is inserted into the top of the lower punching and trimming die 11. The clamping cylinder 382 extends, causing the clamping block 383 to move towards the outer wall of the part, thus clamping it. The hydraulic cylinder 22 extends, causing the lower pressure block 23 and the upper punching and trimming die 12 to move downwards, thus punching and trimming the front door part. If different holes are required, the upper punching and trimming die 12 needs to be replaced. First, the damping... Pull the rotating block 253 downwards, then rotate the damping rotating block 253 to rotate the upper punching and trimming die 12 to be used below the mating groove 24. Then release the damping rotating block 253, and the upper punching and trimming die 12 can be moved upwards by the elastic force of the elastic element 254. This realizes the function of quickly replacing the upper punching and trimming die 12 in the middle. Then, the position of the part is finely adjusted by rotating the first lead screw 33 and the second lead screw 37, and then the hydraulic cylinder 22 is controlled to extend again.

[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A punching and trimming die for a car front door, comprising a base (1), a lower punching and trimming die (11), and an upper punching and trimming die (12), characterized in that, Also includes: Convenient mold changing mechanism (2), the convenient mold changing mechanism (2) is set on the top of the machine base (1), the convenient mold changing mechanism (2) is used to quickly replace the upper punching and trimming mold (12); Fine-tuning mechanism (3) is provided on the top of the base (1) and is used to fix and fine-tune the position of the part; The convenient mold changing mechanism (2) includes a punching and trimming drive assembly and a mold changing assembly. The mold changing assembly includes a side support block (25). A slide rod (251) is slidably connected to the inner wall of the side support block (25). A connecting block (252) is fixedly installed at the bottom of the slide rod (251). An elastic element (254) is fixedly connected to the bottom of the side support block (25). The bottom of the elastic element (254) is fixedly connected to the top of the connecting block (252). A damping rotating block (253) is rotatably connected to the bottom of the connecting block (252).

2. The automotive front door punching and trimming die according to claim 1, characterized in that: A connecting arm (255) is fixedly installed on the outer wall of the damping rotating block (253). The upper punching and trimming mold (12) is detachably connected to the bottom of the connecting arm (255). A fitting block (256) is fixedly connected to the top of the connecting arm (255).

3. The automotive front door punching and trimming die according to claim 1, characterized in that: The punching and trimming drive assembly includes a support frame (21), which is fixedly installed on the top of the base (1). A hydraulic cylinder (22) is fixedly installed on the top of the support frame (21). The telescopic end of the hydraulic cylinder (22) extends to the bottom of the support frame (21) and is fixedly connected to a lower pressure block (23). A fitting groove (24) is provided at the bottom of the lower pressure block (23). The side support block (25) is fixedly installed on the side wall of the lower pressure block (23).

4. The automotive front door punching and trimming die according to claim 1, characterized in that: The fine-tuning mechanism (3) includes two symmetrical bar seats (31). Both symmetrical bar seats (31) are fixedly installed on the top of the machine base (1). A crossbar (32) is fixedly installed between the adjacent sides of the two symmetrical bar seats (31). A first lead screw (33) is rotatably connected between the adjacent sides of the two symmetrical bar seats (31). A first sliding seat (34) is slidably connected on the outer wall of the crossbar (32) and the first lead screw (33).

5. The automotive front door punching and trimming die according to claim 4, characterized in that: A connecting frame (35) is fixedly installed on the top of the first sliding seat (34). A longitudinal rod (36) is fixedly installed between the front and back sides of the inner wall of the connecting frame (35). A second lead screw (37) is rotatably connected between the front and back sides of the inner wall of the connecting frame (35). A second sliding seat (38) is slidably connected to the outer wall of the longitudinal rod (36) and the second lead screw (37). A support platform (39) is detachably connected to the top of the second sliding seat (38). The lower punching and trimming mold (11) is fixedly installed on the top of the support platform (39).

6. The automotive front door punching and trimming die according to claim 5, characterized in that: The second sliding seat (38) is fixedly installed with side support brackets (381) on both sides. A clamping cylinder (382) is fixedly installed on one side of the side support bracket (381). The telescopic end of the clamping cylinder (382) extends to the other side of the side support bracket (381) and is detachably connected to a clamping block (383).

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