A self-trimming punching die for automotive parts
By designing an automatic ejection mechanism for a self-trimming punching die, automatic trimming and unloading are achieved using hydraulic cylinders and return springs, solving the problem of low efficiency in manual unloading in existing technologies and improving trimming efficiency and automation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN SHANGMINGDA IND
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-31
AI Technical Summary
In the current process of trimming automotive parts, manual unloading is required after punching, resulting in low efficiency.
A self-trimming punching die for automotive parts was designed. It adopts an automatic ejection mechanism, uses a hydraulic cylinder to drive the lower pressure plate to cooperate with the stamping block for automatic trimming, and achieves automatic unloading through a return spring.
It improves trimming efficiency, reduces the difficulty of manual material cutting, saves manpower, and realizes automated trimming and material cutting operations.
Smart Images
Figure CN224576032U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts punching technology, specifically to a self-trimming punching die for automotive parts. Background Technology
[0002] Automotive parts include sheet metal stampings and injection molded parts. After sheet metal parts are stamped, the excess parts around the parts need to be trimmed. During the manufacturing process of injection molded parts, flash will be generated on the molded surface. After the injection molding is completed, the flash also needs to be trimmed.
[0003] Currently, the trimming of automotive parts is generally done by punching with a die. The die includes a movable punch and a fixed die. The side wall of the punch fits with the inner wall of the die to complete the punching of the automotive parts. After punching, the automotive parts usually fall into the inner side of the groove and need to be manually removed for unloading, which reduces the trimming efficiency of automotive parts. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0005] This utility model relates to a self-trimming punching die for automotive parts, including a base plate, and an automatic ejection mechanism is provided on the top of the base plate;
[0006] The automatic ejection mechanism includes a mounting block. A positioning groove is provided in the middle of the top wall of the mounting block. A sliding groove is provided in the middle of the bottom wall of the positioning groove. A limit rod is slidably connected to the inner side of the sliding groove. A top plate is fixedly connected to the top of the limit rod. A return spring is fixedly connected to the outer side of the limit rod in the middle of the bottom wall of the top plate. A connecting plate is fixedly connected to the middle of the left and right walls of the outer side of the top plate. The connecting plates pass through and are slidably connected to the inner side of the connecting groove. The connecting groove is respectively located in the middle of the left and right walls of the positioning groove.
[0007] As a preferred embodiment of this utility model, the mounting block is fixedly connected to the middle of the top wall of the base plate, and the other end of the reset spring is fixedly connected to the outer periphery of the sliding groove on the bottom wall of the positioning groove.
[0008] As a preferred embodiment of this utility model, support rods are fixedly connected to the four corners of the top wall of the base plate, and fixed plates are fixedly connected to the top of the four sets of support rods.
[0009] As a preferred embodiment of this utility model, a hydraulic cylinder is fixedly connected to the middle of the top wall of the fixed plate, and the output end of the hydraulic cylinder is fixedly connected to the middle of the top wall of the lower pressure plate.
[0010] As a preferred embodiment of this utility model, each of the four corners of the lower pressure plate is fixedly connected with a collar, and each collar is slidably connected to the outside of the support rod.
[0011] As a preferred embodiment of this utility model, a stamping block is fixedly connected to the middle of the bottom wall of the lower pressure plate, and a cutting ring is fixedly connected to the outer side of the bottom of the stamping block.
[0012] As a preferred technical solution of this utility model, a pressure rod is fixedly connected to both the left and right sides of the bottom wall of the pressure plate, and the pressure rod is located directly above the end of the connecting plate away from the limiting rod.
[0013] The beneficial effects of this utility model are:
[0014] 1. This type of self-trimming punching die for automotive parts automatically trims the automotive parts by placing the parts inside the positioning groove and activating the hydraulic cylinder when trimming is required. The output end of the hydraulic cylinder extends, causing the lower pressure plate and the stamping block to move downwards. With the cooperation of the cutting ring on the outer side of the stamping block and the mounting block, the automotive parts are automatically trimmed, thus improving the trimming efficiency of automotive parts.
[0015] 2. This type of self-trimming punching die for automotive parts uses the pressing rods on both sides of the bottom of the lower pressure plate to press the connecting plate during the trimming process. This causes the connecting plate to move the top plate downwards and squeeze the return spring. When the trimming is completed, the top plate pops up under the action of the return spring, thereby ejecting the automotive parts inside the positioning groove. This achieves automatic unloading, reduces the difficulty of unloading, and saves manpower. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0017] Figure 1 This is a top view schematic diagram of the overall structure of a self-trimming punching die for automotive parts according to this utility model;
[0018] Figure 2 This is a front view schematic diagram of the overall structure of a self-trimming punching die for automotive parts according to this utility model;
[0019] Figure 3 This is a side view of the ejection structure of a self-trimming punching die for automotive parts according to this utility model.
[0020] Figure 4 This is a top view schematic diagram of the ejection structure of a self-trimming punching die for automotive parts according to this utility model.
[0021] In the diagram: 1. Base plate; 2. Automatic ejection mechanism; 3. Mounting block; 4. Support rod; 5. Fixing plate; 6. Hydraulic cylinder; 7. Collar; 8. Lower pressure plate; 9. Stamping block; 10. Cutting ring; 11. Lower pressure rod; 12. Positioning groove; 13. Top plate; 14. Connecting plate; 15. Connecting groove; 16. Slide groove; 17. Limiting rod; 18. Return spring. Detailed Implementation
[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0023] Example: Figures 1-4 As shown, the present invention provides a self-trimming punching die for automotive parts, including a base plate 1, and an automatic ejection mechanism 2 is provided on the top of the base plate 1;
[0024] The automatic ejection mechanism 2 includes a mounting block 3, which provides space for the positioning groove 12. The positioning groove 12 is located in the middle of the top wall of the mounting block 3. The positioning groove 12 has the same shape and size as the automotive parts that need to be trimmed, which facilitates the determination of the position of the parts. A sliding groove 16 is located in the middle of the bottom wall of the positioning groove 12. A limit rod 17 is slidably connected to the inner side of the sliding groove 16. A top plate 13 is fixedly connected to the top of the limit rod 17. The limit rod 17 and the sliding groove 16 cooperate to restrict the top plate 13 and prevent it from shifting during its up and down movement. A return spring 18 is fixedly connected to the outer side of the limit rod 17 in the middle of the bottom wall of the top plate 13. A connecting plate 14 is fixedly connected to the middle of the left and right walls of the outer side of the top plate 13. The connecting plates 14 are slidably connected to the inner side of the connecting groove 15. The connecting groove 15 is located in the middle of the left and right walls of the positioning groove 12. The connecting plate 14 can move up and down inside the connecting groove 15, thereby driving the top plate 13 to move up and down.
[0025] The mounting block 3 is fixedly connected to the middle of the top wall of the base plate 1. The other end of the reset spring 18 is fixedly connected to the outer periphery of the bottom wall slide groove 16 in the positioning groove 12. Support rods 4 are fixedly connected to the four corners of the top wall of the base plate 1. Fixing plates 5 are fixedly connected to the top of the four sets of support rods 4. Fixing plates 5 serve to connect and fix the hydraulic cylinder 6 and the support rods 4.
[0026] A hydraulic cylinder 6 is fixedly connected to the middle of the top wall of the fixed plate 5. The output end of the hydraulic cylinder 6 is fixedly connected to the middle of the top wall of the lower pressure plate 8. There are collars 7 fixedly connected to the four corners inside the lower pressure plate 8. The collars 7 are slidably connected to the outside of the support rod 4. During the operation of the hydraulic cylinder 6, the output end extends and retracts, causing the lower pressure plate 8 to move up and down.
[0027] A stamping block 9 is fixedly connected to the middle of the bottom wall of the lower pressure plate 8. A cutting ring 10 is fixedly connected to the outer bottom of the stamping block 9. A lower pressure rod 11 is fixedly connected to both the left and right sides of the middle of the bottom wall of the lower pressure plate 8. The lower pressure rod 11 is located directly above the end of the connecting plate 14 away from the limit rod 17. The cutting ring 10 can cut and trim the protruding parts of the component edges during the pressing process.
[0028] Working principle: When trimming automotive parts is required, the parts are placed inside the positioning groove 12 and the hydraulic cylinder 6 is activated. The output end of the hydraulic cylinder 6 extends, causing the lower pressure plate 8 and the stamping block 9 to move downward. With the cooperation of the cutting ring 10 on the outside of the stamping block 9 and the mounting block 3, the automotive parts are automatically trimmed. During the trimming process, the lower pressure rods 11 on both sides of the bottom of the lower pressure plate 8 press the connecting plate 14, causing the connecting plate 14 to drive the top plate 13 to move downward and squeeze the return spring 18. When the trimming is completed, the top plate 13 pops upward under the action of the return spring 18, thereby pushing out the automotive parts inside the positioning groove 12 and realizing automatic unloading operation.
[0029] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A self-trimming punching die for automotive parts, comprising a base plate (1), characterized in that: An automatic ejection mechanism (2) is provided on the top of the base plate (1); The automatic ejection mechanism (2) includes a mounting block (3). A positioning groove (12) is provided in the middle of the top wall of the mounting block (3). A sliding groove (16) is provided in the middle of the bottom wall of the positioning groove (12). A limiting rod (17) is slidably connected to the inner side of the sliding groove (16). A top plate (13) is fixedly connected to the top of the limiting rod (17). A reset spring (18) is fixedly connected to the outer side of the limiting rod (17) in the middle of the bottom wall of the top plate (13). A connecting plate (14) is fixedly connected to the middle of the left and right walls of the outer side of the top plate (13). The connecting plates (14) are all slidably connected to the inner side of the connecting groove (15). The connecting groove (15) is respectively located in the middle of the left and right walls of the positioning groove (12).
2. The self-deburring and punching die for an automobile part according to claim 1, wherein The mounting block (3) is fixedly connected to the middle of the top wall of the base plate (1), and the other end of the reset spring (18) is fixedly connected to the outer periphery of the bottom wall slide groove (16) of the positioning groove (12).
3. The self-deburring and punching die for an automobile part according to claim 1, wherein Support rods (4) are fixedly connected to the four corners of the top wall of the base plate (1), and fixed plates (5) are fixedly connected to the top of the four sets of support rods (4).
4. The self-deburring and blanking die for an automobile part according to claim 3, characterized in that, A hydraulic cylinder (6) is fixedly connected to the middle of the top wall of the fixed plate (5), and the output end of the hydraulic cylinder (6) is fixedly connected to the middle of the top wall of the lower pressure plate (8).
5. The self-deburring and blanking die for an automobile part according to claim 4, characterized in that, The lower pressure plate (8) has four fixedly connected collars (7) at its four corners, and the collars (7) are slidably connected to the outside of the support rod (4).
6. The self-deburring and blanking die for an automobile part according to claim 4, wherein A stamping block (9) is fixedly connected to the middle of the bottom wall of the lower pressure plate (8), and a cutting ring (10) is fixedly connected to the outer bottom of the stamping block (9).
7. The self-deburring and blanking die for an automobile part according to claim 4, wherein The lower pressure plate (8) has a lower pressure rod (11) fixedly connected to both sides of the middle of the bottom wall. The lower pressure rod (11) is located directly above the end of the connecting plate (14) away from the limiting rod (17).