A multi-surface trimming die for heat shield production

Abstract

The utility model discloses a kind of multi-face trimming die for heat shield production, including upper die structure and lower die structure;Its characteristics are, upper die structure includes upper die plate, upper clamping plate, first configuration push block, second configuration push block, third punch, material stripping plate, material pressing body;Lower die structure includes lower die plate, material leakage hole, male die, first lateral force stopper, second lateral force stopper, first tension rod, first inclined sliding block, first return spring, first punch, second tension rod, second inclined sliding block, second return spring, second punch;In heat shield production, adopt multi-face trimming die, efficiency is improved, size precision and cross section quality are improved, reduce comprehensive cost.

Description

Technical Field

[0001] This utility model relates to the field of cold stamping die technology, specifically a multi-faceted trimming die used in the production of heat insulation covers. Background Technology

[0002] Stamping dies, often referred to as the "mother of industry," play a crucial role in modern manufacturing, especially in the automotive industry. China's automobile production and sales exceeded 31 million units in 2024, setting a new historical record. This growth directly drove the demand for stamping dies, as manufacturing a typical sedan requires approximately 1,000 to 1,500 sets of stamping dies, accounting for about 40% of the total die value required for vehicle production. With the rapid development of new energy vehicles, the demand for efficient and lightweight components is increasing, further highlighting the necessity of technological innovation in stamping dies to meet market demands.

[0003] For box-shaped heat shield products for automotive parts, before processing, the heat shield 25 needs to be cut off and the waste material 26 removed to process it into a finished heat shield 27. The two sides are perpendicular to the top surface. When cutting or trimming is required, multiple mold processes are needed. Traditional single-process molds require multiple mold positioning and clamping processes, resulting in cumulative dimensional deviations. The heat shield cross-section produces defects such as burrs and cutting steps due to multiple trimming processes. Conventional mold processes are numerous, and the heat shield processing requires the workpiece to be transported, repeatedly positioned, and mold changed between different mold processes, resulting in long processing times and low processing efficiency. A large number of molds need to be developed, the development cycle is long, and the development cost of the heat shield is high. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a multi-faceted trimming mold for the production of heat insulation covers.

[0005] The technical solution provided by this utility model is: a multi-faceted trimming mold for heat insulation cover production, including an upper mold structure and a lower mold structure; its special feature is that the upper mold structure includes an upper template, and an upper clamping plate is provided below the upper template, the two being fixedly connected; the upper clamping plate is provided with a first configuration push block, a second configuration push block, and a third punch, the first configuration push block and the second configuration push block are located on both sides, the third punch is located in the center, the first configuration push block, the second configuration push block, and the third punch pass through the stripper plate with clearance fit, the upper clamping plate is positioned and connected to the stripper plate below, and a pressing body for positioning and fixing the heat insulation cover is provided below the stripper plate; The lower die structure includes a lower die plate, with a material discharge hole at its center for discharging waste material after punching; a punch is fixed at the center of the lower die plate; a first lateral force stop block and a second lateral force stop block are fixed on the lower die plate, located at opposite ends of the lower die plate; a first tension rod is fitted onto the first lateral force stop block with clearance, one end of the first tension rod is fixedly connected to a first inclined slide block, and the other end of the first tension rod is provided with a first return spring for the first inclined slide block to return to its initial position after operation; the first inclined slide block is fixed to the lower die plate with clearance, and its working surface matches the working surface of the first profile push block under the reaction force of the first return spring; a first punch is fixed on the first inclined slide block; the first profile push block drives the first inclined slide block and the first tension rod downwards, and the compression of the first return spring drives the first punch to move in tandem. The first configuration push block slides laterally; its working surface structure is such that the first inclined slider reciprocates twice in one effective working cycle; the second lateral force block is fitted with a second tension rod with a clearance, one end of which is fixedly connected to the second inclined slider, and the other end of which is provided with a second return spring for the second inclined slider to return to its initial position after working; the second inclined slider is fixedly fixed to the lower template, and its working surface matches the working surface of the second configuration push block under the reaction force of the second return spring; a second punch is fixed on the second inclined slider; the second configuration push block drives the second inclined slider and the second tension rod downwards, and the compression of the second return spring drives the second punch to slide laterally synchronously; the working surface structure of the second configuration push block is such that the second inclined slider reciprocates twice in one effective working cycle.

[0006] Furthermore, the pressure plate and the punch cooperate to position and fix the heat insulation cover between the punch and the pressure plate.

[0007] Furthermore, the working surfaces of the first and second inclined sliders are configured to match the working surfaces of the first and second configuration push blocks.

[0008] The beneficial effects of this utility model are: 1. Efficiency Improvement: In the production of heat insulation covers, the use of multi-faceted trimming dies enables the one-time positioning of parts and the processing of multiple heat insulation cover sections. This reduces the time spent on handling, repositioning, and changing dies between different process dies during the heat insulation cover processing, resulting in an overall stamping efficiency improvement of 30%-35%. 2. Improved dimensional accuracy and cross-sectional quality: In the production of heat insulation covers, multi-face trimming dies are used, which reduces the total number of processing steps for heat insulation covers and reduces the cumulative dimensional deviation caused by multi-stage die positioning and clamping; it ensures that the trimming of multiple sides of the heat insulation cover is completed in one go under the same coordinate system, avoiding defects such as burrs and tool steps caused by multiple trimming of the heat insulation cover cross-section; 3. Reduce overall costs: In the production of heat insulation covers, multi-faceted trimming molds are used. One set of multi-faceted trimming molds can replace multiple sets of single-process molds, reducing the number of molds to be developed, shortening the development cycle, simplifying the number of production line stations, reducing labor costs, reducing the production investment of hydraulic press equipment, and reducing equipment maintenance costs. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the mold opening state structure of this utility model; Figure 2 This is a schematic diagram of the working state structure of this utility model; Figure 3 This is a schematic diagram of another working state structure of this utility model; Figure 4 This is a schematic diagram of the closed-mold structure of this utility model; Figure 5 This is a schematic diagram of the heat insulation cover structure before processing of this utility model; Figure 6 This is a schematic diagram of the heat insulation cover structure after processing according to this utility model.

[0010] In the diagram, 1. Upper template, 2. Upper clamping plate, 3. Stripper plate, 4. First configuration push block, 5. First lateral force stop block, 6. First return spring, 7. First tension rod, 8. Lower template, 9. First inclined slider, 10. First punch, 11. Heat shield, 12. First scrap, 13. Slip hole, 14. Punch, 15. Second scrap, 16. Second punch, 17. Second inclined slider, 18. Second tension rod, 19. Second return spring, 20. Second lateral force stop block, 21. Pressure plate, 22. Second configuration push block, 23. Third punch, 24. Third scrap, 25. Heat shield before processing, 26. Scrap removed, 27. Finished heat shield. Detailed Implementation

[0011] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings.

[0012] like Figure 1 , 2 As shown in Figures 3, 4, 5, and 6, a multi-faceted trimming mold for use in the production of heat insulation covers includes an upper mold structure and a lower mold structure. The upper mold structure includes an upper template 1, an upper clamping plate 2 installed under the upper template 1 and fixed with bolts; a first configuration push block 4, a second configuration push block 22 and a third punch 23 are installed and fixed on the upper clamping plate 2. The first configuration push block 4 and the second configuration push block 22 are located on both sides, and the third punch 23 is located in the center. The first configuration push block 4, the second configuration push block 22 and the third punch 23 pass through the stripper plate 3 with clearance fit. The upper clamping plate 2 and the stripper plate 3 are positioned and connected with equal height bolts. A pressure body 21 is fixedly installed under the stripper plate 3 with bolts for positioning and fixing the heat insulation cover 11. After the punching operation, it is used for the first punch 10, the second punch 16 and the third punch 23 to detach from the product to prevent the product from being deformed during the detachment process. The lower die structure includes a lower die plate 8, with a material discharge hole 13 at its center for discharging the first scrap 12, the second scrap 15, and the third scrap 24 after punching. A punch 14 is mounted above the lower die plate 8, bolted to its center. During punching, the punch works in conjunction with the punch head. The punch 14 is made of Cr12Mov high-strength die steel, possessing high toughness, high wear resistance, and a long service life. A first lateral force stop 5 and a second lateral force stop 20 are fixed at both ends above the lower die plate 8 to eliminate the lateral force on the first configuration push block 4 during operation, ensuring precise drive of the first inclined slide block 9 and the second inclined slide block 17 by the first configuration push block 4 and the second lateral force stop 20. A first tension rod 7 is fitted onto the first lateral force stop 5 with a clearance fit. The first tension rod 7 is threadedly fixed to the first inclined slider 9. A first return spring 6 is mounted on the first tension rod 7 to return the first inclined slider 9 to its initial position after operation. The first inclined slider 9 is fixed to the lower template 8 with a clearance fit. The working surface of the first inclined slider 9 matches the working surface of the first configuration push block 4 under the reaction force of the first return spring 6. A first punch 10 is mounted on the first inclined slider 9 and is fixed to the first inclined slider 9 with a positioning pin and bolts. The first configuration push block 4 drives the first inclined slider 9 and the first tension rod 7 downwards, compresses the first return spring 6, and causes the first punch 10 to slide laterally synchronously. The working surface structure of 4 is such that the first inclined slider 9 reciprocates twice in one effective working cycle; a second tension rod 18 is fitted with the second lateral force stop 20 with clearance, and the second tension rod 18 is threadedly fixed to the second inclined slider 17. The second tension rod 18 has a second return spring 19 for the second inclined slider 17 to return to its initial position after working; the second inclined slider 17 is fixed to the lower template 8 with clearance, and the working surface of the second inclined slider 17 matches the working surface of the second configuration push block 22 under the reaction force of the second return spring 19. A second punch 16 is installed on the second inclined slider 17, and the second punch 16 is fixed to the second inclined slider 17 with positioning pins and bolts; the second configuration push block 22 The second inclined slider 17 and the second tension rod 18 are compressed as the second return spring 19 is compressed, and the second punch 16 slides laterally in sync. The working surface structure of the second configuration push block 22 is such that the second inclined slider 17 reciprocates twice in one effective working cycle. The working surfaces of the first inclined slider 9 and the second inclined slider 17 are matched with the working surfaces of the first configuration push block 4 and the second configuration push block 22. When the third punch 23 is punching, the first punch 10 and the second punch 16 are reset to ensure that the third punch 23 works, avoiding interference between the first punch 10, the second punch 16 and the third punch 23. The pressure body 21 cooperates with the punch 14 to position and fix the heat insulation cover 11 between the punch 14 and the pressure body 21.

[0013] This utility model discloses a multi-faceted trimming mold for heat insulation cover production. During operation, a robotic arm places the heat insulation cover 25 before processing onto the designated punch 14. The upper mold descends, and the upper template 1, upper clamping plate 2, stripper plate 3, pressure body 21, first configuration block 4, and second configuration block 22 descend synchronously. The pressure body 21 contacts and fixes the heat insulation cover 25 before processing. The first lateral force stop 5 contacts the first inclined slider 9, and the second lateral force stop 20 contacts the second inclined slider 17. Under the continuous downward pressure of the upper mold, the first configuration push block 4 drives the first inclined slider 9 and the first tension rod 7, compressing the first return spring 6. The first punch 10 slides laterally in sync, the second configuration block 22 drives the second inclined slider 17 and the second tension rod 18, the second return spring 19 is compressed, and the second punch 16 slides laterally in sync. The first punch 10 and the second punch 16 pass through the pre-processing heat shield 25 respectively, punching out the first waste material 12 and the second waste material 15, completing the side punching; the upper die continues to descend, and under the action of the first return spring 6 and the second return spring 19, the first punch 10 and the second punch 16 are disengaged from the product and return to the design position respectively. The third punch 23 descends in sync, passes through the pre-processing heat shield 25, punching out the third waste material 24, completing all punching; The upper die descends to its limit position and then rises. The upper template 1 and the upper clamping plate 2 drive the third punch 23 to separate from the heat insulation cover 11. The first configuration block 4 drives the first inclined slider 9 and the first tension rod 7, compressing the first return spring 6. The first punch 10 slides laterally synchronously. The second configuration push block 22 drives the second inclined slider 17 and the second tension rod 18, compressing the second return spring 19. The second punch 16 slides laterally synchronously. The first punch 10 and the second punch 16 reach the punching working limit position again. The upper die continues to rise. Under the action of the first return spring 6 and the second return spring 19, the first punch 10 and the second punch 16 return to their initial positions. Driven by the stripper plate 3, the pressing body 21 separates from the finished heat insulation cover 27. The upper die continues to rise to the upper limit position, completing one punching work cycle.

[0014] It should be understood that any technical features not described in detail in this specification belong to the prior art. Although the embodiments of this utility model patent have been described, this utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make more forms under the guidance of this utility model without departing from the spirit and scope of protection of this utility model and the claims, and these all fall within the protection scope of this utility model.

Claims

1. A multi-faceted trimming mold for use in the production of heat insulation covers, comprising an upper mold structure and a lower mold structure; characterized in that, The upper mold structure includes an upper template (1), and an upper clamping plate (2) is provided below the upper template (1), and the two are fixedly connected; the upper clamping plate (2) is provided with a first configuration push block (4), a second configuration push block (22) and a third punch (23), the first configuration push block (4) and the second configuration push block (22) are located on both sides, and the third punch (23) is located in the center. The first configuration push block (4), the second configuration push block (22) and the third punch (23) pass through the stripper plate (3) with clearance fit. The upper clamping plate (2) is positioned and connected to the stripper plate (3) below. The stripper plate (3) is provided with a pressing body (21) for positioning and fixing the heat insulation cover (11). The lower die structure includes a lower die plate (8), with a material discharge hole (13) at the center of the lower die plate (8) for discharging waste material after punching; a punch (14) is fixed at the center of the lower die plate (8); a first lateral force stop block (5) and a second lateral force stop block (20) are fixed on the lower die plate (8), which are located at both ends of the lower die plate (8); a first tension rod (7) is fitted with the first lateral force stop block (5) with clearance, one end of the first tension rod (7) is fixedly connected to the first inclined slider (9), and the other end of the first tension rod (7) is fixedly connected to the first inclined slider (9). A first return spring (6) is provided on the end for the first inclined slider (9) to return to its initial position after working; the first inclined slider (9) is fixed to the lower template (8) with a gap, and the working surface of the first inclined slider (9) matches the working surface of the first configuration push block (4) under the reaction force of the first return spring (6); a first punch (10) is fixed on the first inclined slider (9); the first configuration push block (4) drives the first inclined slider (9) and the first tension rod (7) downward, and the first return spring (6) compresses and drives the first punch (10) to move in the same direction. The first configuration push block (4) has a working surface structure such that the first inclined slider (9) reciprocates twice in one effective working cycle; the second lateral force stop block (20) is fitted with a second tension rod (18) with clearance, one end of the second tension rod (18) is fixedly connected to the second inclined slider (17), and the other end of the second tension rod (18) is provided with a second return spring (19) for the second inclined slider (17) to return to the initial position after working; the second inclined slider (17) is fixedly fixed on the lower template (8) with clearance, the first... The working surface of the second inclined slider (17) matches the working surface of the second configuration push block (22) under the reaction force of the second return spring (19); the second punch (16) is fixed on the second inclined slider (17); the second configuration push block (22) drives the second inclined slider (17) and the second tension rod (18) downward, and the second return spring (19) compresses and drives the second punch (16) to slide laterally in sync; the working surface structure of the second configuration push block (22) is such that the second inclined slider (17) reciprocates twice in one effective working cycle.

2. The multi-faceted trimming mold for heat insulation cover production according to claim 1, characterized in that, The pressure body (21) cooperates with the punch (14) to position and fix the heat insulation cover (11) between the punch (14) and the pressure body (21).

3. A multi-faceted trimming mold for heat insulation cover production according to claim 1, characterized in that, The working surfaces of the first inclined slider (9) and the second inclined slider (17) are matched with the working surfaces of the first configuration push block (4) and the second configuration push block (22).

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