A continuous side punch die for heat shield production

Abstract

The utility model discloses a kind of continuous side punch mould for heat shield production, including upper die structure and lower die structure;Its characteristics are, the upper die structure includes upper die plate, upper clamping plate, stripper plate, inclined wedge, lateral force backing block, telescopic link, inclined sliding block, punch clamp block, stripper block, punch;The lower die structure includes lower die plate, material leakage hole, steel eye, forming hole and steel eye material leakage hole;Punch is matched with forming hole, and the center line position of both coincides;Die stroke reduces, precision improves, the processing error of heat shield reduces, simultaneously reduce the die development and maintenance cost, improve heat shield processing efficiency.

Description

Technical Field

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

[0002] As an important tool in modern manufacturing, progressive side-punching dies have seen technological advancements and expanded applications drive the entire industry's development. Currently, the stamping die market exceeds $50 billion and is expected to continue growing in the coming years. With further upgrades in market demand, side-punching dies need to evolve towards higher precision and efficiency, not only improving die durability but also enhancing the ability to process complex shapes.

[0003] For products with complex shapes, such as engine heat shields, the side structures are intricate and have long "ears." In continuous die production, the side punching mechanism needs a large return stroke to avoid interference between the side punching mechanism and the heat shield during its floating process. To ensure effective die stroke, the wedge needs to be lengthened, and the upper die stripper plate stroke also needs to be increased accordingly. The main function of the upper die stripper plate is to guide the upper die forming block, punch, etc., to coincide with the corresponding positions of the lower die forming block, steel eye, etc., to improve the processing quality of the heat shield. Increasing the upper die stripper plate stroke will increase the processing error of the heat shield; increasing the die stroke will increase the die development cost; with a large die stroke, in order to ensure effective return of the die side punching mechanism and stripper plate, the die punching frequency also needs to be reduced, thereby reducing the production efficiency of the heat shield. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a continuous side punching die for the production of heat insulation covers.

[0005] The technical solution provided by this utility model is: a continuous side-punching die for heat insulation cover production, comprising an upper die structure and a lower die structure; its special feature is that the upper die structure includes an upper template, an upper clamping plate under the upper template, and mounting holes on the upper clamping plate; a stripper plate is provided below the upper clamping plate, and a guide hole is provided on the stripper plate; a wedge is provided in the guide hole and the mounting hole; a lateral force block is fixed under the stripper plate, and a telescopic rod guide hole is provided on the lateral force block; a telescopic rod is provided in the telescopic rod guide hole, and the telescopic rod passes through the telescopic rod guide hole and is fixedly connected to the inclined slider; the telescopic rod is provided with a function for the inclined slider to return to the initial position after punching. A return spring is provided; the inclined slider is fixed to the upper stripper plate with a gap, the inclined surface of the inclined slider matches the inclined surface of the inclined wedge, and the inclined slider slides relative to the stripper plate under the action of the inclined wedge; a punch clamping block is provided on the inclined slider, and a punch fixing hole is provided on the punch clamping block; a stripper block is provided on the left side of the punch clamping block, the stripper block is fixed to the stripper plate, and a punch guide hole is provided on the stripper block; a punch is provided in the punch fixing hole, the punch and the punch clamping block are interference fit, and the punch and the stripper block are clearance fit in the punch guide hole; the downward movement of the inclined wedge drives the inclined slider, the stripper block, and the telescopic rod to slide laterally; the return spring is compressed, and the punch slides laterally synchronously;

[0006] The lower die structure includes a lower template with a material discharge hole; a steel eye on the lower template; a forming hole and a material discharge hole on the steel eye; the forming hole, the material discharge hole, and the material discharge hole are connected; the punch of the upper die structure matches the forming hole, and their center lines coincide.

[0007] Furthermore, the stripping plate, in conjunction with the steel eye, positions and fixes the heat insulation cover between the steel eye and the stripping block.

[0008] The beneficial effects of this utility model are:

[0009] 1. Improve product quality: Reduced mold stroke, improved mold precision, and reduced processing error of the heat insulation cover;

[0010] 2. Reduced costs: Reduced mold stroke lowers mold development and maintenance costs;

[0011] 3. Improve production efficiency: The reduced die stroke eliminates the problem of effective return of the side punch mechanism and stripper plate, which can increase the die stamping frequency and improve the processing efficiency of heat shield. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the closed-mold structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the mold-opening state structure of this utility model.

[0014] In the diagram: 1. Upper template, 2. Upper clamping plate, 3. Stripping plate, 4. Heat insulation cover, 5. Steel eye, 6. Steel eye discharge hole, 7. Lower template, 8. Discharge hole, 9. Punch, 10. Punch guide hole, 11. Stripping block, 12. Punch clamping block, 13. Punch fixing hole, 14. Inclined slider, 15. Lateral force block, 16. Telescopic rod guide hole, 17. Return spring, 18. Telescopic rod, 19. Inclined wedge, 20. Guide hole, 21. Mounting hole, 22. Forming hole. Detailed Implementation

[0015] To better understand and implement this utility model, the following details its features.

[0016] like Figure 1 , 2 As shown, a continuous side punching die for the production of heat insulation covers includes an upper die structure and a lower die structure.

[0017] The upper mold structure includes an upper template 1, which is fixed to an upper clamping plate 2 below. An mounting hole 21 is designed on the upper clamping plate 2. A stripper plate 3 is installed below the upper clamping plate 2, and a guide hole 20 is provided on the stripper plate 3. An inclined wedge 19 is installed in both the guide hole 20 and the mounting hole 21. The inclined wedge 19 is clearance-fitted into the guide hole 20 and interference-fitted into the mounting hole 21. The guide hole 20 stabilizes the working position of the inclined wedge 19 during mold operation, reducing wear and increasing service life. A lateral force block 15 is bolted and installed below the stripper plate 3 to eliminate the lateral force of the inclined wedge 19. A telescopic rod guide hole 16 on the lateral force block 15 is clearance-fitted with a telescopic rod 18. The telescopic rod 18 passes through the telescopic rod guide hole 16 and is fixed to the inclined slider 14. A return spring 17 is fixed on the telescopic rod 18 to return the inclined slider 14 to its initial position after punching. The inclined slider 14 is then fixed with a clearance. On the upper stripper plate 3, the inclined surface of the inclined slider 14 matches the inclined surface of the inclined wedge 19, and the inclined slider 14 slides relative to the stripper plate 3 under the force of the inclined wedge 19; a punch clamp 12 is fixed on the inclined slider 14 with bolts and positioning pins, and a punch fixing hole 13 is provided on the punch clamp 12; a stripper block 11 is installed on the left side of the punch clamp 12, and the stripper block 11 is fixed on the stripper plate 3 with bolts and positioning pins, and a punch guide hole 10 is provided on the stripper block 11; the punch 9 and The punch clamping block 12 is interference-fitted and fixed in the punch fixing hole 13, and the punch 9 and the stripper block 11 are clearance-fitted in the punch guide hole 10. The punch 9 is made of SKD11 high-strength mold steel, which is wear-resistant and has a long service life. The function of the stripper block 11 is to provide precise guidance when the punch 9 is working. When the mold is closed, the stripper block 11 cooperates with the steel eye 5 to fix the heat insulation cover 4 to ensure reliable positioning. After punching, the punch 9 is removed from the product to prevent product deformation.

[0018] The lower mold structure includes a lower mold plate 7, on which a material discharge hole 8 is opened; a steel eye 5 is fixed above the lower mold plate 7; a forming hole 22 and a steel eye discharge hole 6 are opened on the steel eye 5; the forming hole 22, the steel eye discharge hole 6 and the material discharge hole 8 are connected to each other and are used to discharge the waste material after punching; the punch 9 matches the forming hole 22 and the center lines of the two coincide; the stripper plate 3 cooperates with the steel eye 5 to position and fix the heat insulation cover 4 between the steel eye 5 and the stripper block 11;

[0019] The inclined wedge 19 drives the inclined slider 14, stripper block 11, and telescopic rod 18 to slide laterally. The return spring 17 is compressed, and the punch 9 slides laterally in sync. The punch 9 passes through the heat insulation cover 4 and enters the forming hole 22 to complete the punching.

[0020] The above-mentioned continuous side punching die structure is suitable for various heat shield structures, such as single-layer or multi-layer structures.

[0021] This utility model discloses a continuous side-punching die for the production of heat insulation covers. During operation: an automatic feeder places the heat insulation cover 4 in the designated position; the upper die descends, the stripper plate 3 and stripper block 11 contact and fix their positions with the heat insulation cover 4, and the lateral force block 15 contacts the lower die plate 7. Under the downward pressure of the upper die, the inclined wedge 19 descends, driving the inclined slider 14, stripper block 11, and telescopic rod 18 to slide laterally. The return spring 17 is compressed, and the punch 9 slides laterally synchronously, punching through the heat insulation cover. 4. The punch enters the forming hole 22 to complete the punching; the upper die descends to the limit position and then rises, the wedge 19 rises synchronously, and under the force of the return spring 17, the inclined slider 14, the stripper block 11, and the telescopic rod 18 slide back laterally, and the punch 9 returns synchronously. Under the action of the stripper block 11, the punch 9 separates from the heat insulation cover 4, the inclined slider 14, the stripper block 11, the telescopic rod 18, and the punch 9 return to the initial position and stop, and the upper die continues to rise to the upper limit position to complete one punching cycle.

[0022] 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 above in conjunction with the accompanying drawings, 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 continuous side-punching die for the production of heat insulation covers, comprising an upper die structure and a lower die structure; characterized in that, The upper mold structure includes an upper template (1), an upper clamping plate (2) under the upper template (1), and an mounting hole (21) on the upper clamping plate (2); a stripper plate (3) is provided below the upper clamping plate (2), and a guide hole (20) is provided on the stripper plate (3); a wedge (19) is provided in the guide hole (20) and the mounting hole (21); a lateral force block (15) is fixed below the stripper plate (3), and a telescopic rod guide hole (16) is provided on the lateral force block (15); a telescopic rod (18) is provided in the telescopic rod guide hole (16), and the telescopic rod (18) passes through the telescopic rod guide hole (16) and is fixedly connected to the inclined slider (14); a reset spring (17) is provided on the telescopic rod (18) for the inclined slider (14) to return to the initial position after punching; the inclined slider (14) is fixedly fixed on the upper stripper plate (3) with a gap, and the inclined slider (14) The inclined surface of the slide block (14) matches the inclined surface of the wedge (19), and the slide block (14) slides relative to the stripper plate (3) under the force of the wedge (19); the slide block (14) is provided with a punch clamp (12), and the punch clamp (12) is provided with a punch fixing hole (13); the left side of the punch clamp (12) is provided with a stripper block (11), the stripper block (11) is fixed on the stripper plate (3), and the stripper block (11) is provided with a punch. Guide hole (10); punch (9) is provided in punch fixing hole (13), punch (9) is interference fit with punch clamp (12), punch (9) is clearance fit with stripper block (11) in punch guide hole (10); the wedge (19) drives the inclined slider (14), stripper block (11) and telescopic rod (18) to slide laterally when the downward movement is driven; the return spring (17) is compressed and the punch (9) slides laterally synchronously. The lower mold structure includes a lower template (7), on which a material leakage hole (8) is provided; a steel eye (5) is provided on the lower template (7); a forming hole (22) and a steel eye material leakage hole (6) are provided on the steel eye (5); the forming hole (22), the steel eye material leakage hole (6) and the material leakage hole (8) are connected; the punch (9) of the upper mold structure matches the forming hole (22), and the center lines of the two coincide.

2. A continuous side-punching die for heat insulation cover production according to claim 1, characterized in that, The stripping plate (3) works with the steel eye (5) to position and fix the heat insulation cover (4) between the steel eye (5) and the stripping block (11).

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