Piercing forming cold stamping die

Abstract

The utility model discloses a piercing forming cold stamping die which comprises a first piercing female die, a second piercing female die, a first driving block, a first sliding block and a piercing punch, the second piercing female die is located in front of the first piercing female die, and a piercing hole site is formed between the first piercing female die and the second piercing female die. A first inclined plane is arranged at the lower end of the first driving block, a second inclined plane is arranged at the upper end of the first sliding block, a base plate is connected between the first inclined plane and the second inclined plane, the first sliding block slides in the horizontal direction, the piercing punch is fixed to the first sliding block, and the front end of the piercing punch penetrates through the piercing hole site. According to the cold stamping die for piercing forming, the two piercing female dies are split, the moving direction of the wedge is changed, the product piercing procedure in a narrow space is met, the structure is more stable and reliable, and the production cost and the maintenance cost can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a puncture-forming cold stamping mold. Background Art

[0002] As the pace of vehicle upgrades accelerates, automotive product design strives for distinctive styling. Furthermore, awareness of energy conservation and emission reduction is growing, leading to a reduction in product quantity and weight reduction based on enhanced safety features. These factors inevitably increase the difficulty of manufacturing parts, placing higher demands on the mold manufacturing process, requiring qualified, stable, efficient molds capable of mass production. Conventional puncture processes interfere with the overall die when removing the product after molding. Existing molds generally use an interactive wedge that aligns its motion with the puncture direction, but this cannot be accomplished within the limited confined space, resulting in a larger overall structure and a significant challenge to mold production and maintenance costs. Utility Model Content

[0003] One purpose of the utility model is to provide a cold stamping die for puncture forming, change the movement direction of the inclined wedge, split the inclined wedge structure into two puncture dies to complete the action, and achieve the advantages of smaller overall volume and higher puncture accuracy.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A cold stamping die for puncture forming, comprising a first puncture die, a second puncture die, a first driving block, a first slider and a puncture punch, wherein the second puncture die is located in front of the first puncture die, a puncture hole is formed between the first puncture die and the second puncture die, a first inclined surface is provided at the lower end of the first driving block, a second inclined surface is provided at the upper end of the first slider, a pad is connected between the first inclined surface and the second inclined surface, the first slider slides in a horizontal direction, the puncture punch is fixed on the first slider, and the front end of the puncture punch passes through the puncture hole.

[0006] As a preferred technical solution, it includes a lower die base, on which a die position is provided, and the first puncture die is fixed in the die position.

[0007] As a preferred technical solution, a first slide groove is provided on the lower die base, the first slider slides in the first slide groove, a nitrogen return spring is installed at the front end of the first slider, and the movable end of the nitrogen return spring is connected to the lower die base.

[0008] As a preferred technical solution, a connecting bar is provided between the first driving block and the first slider, a sliding groove is obliquely provided on one side of the first driving block, one end of the connecting bar is fixed on the first slider, and the other end of the connecting bar slides in the sliding groove.

[0009] As a preferred technical solution, a punch clamping plate is fixed to the front end of the first sliding block, and the puncture punch is fixed to the middle of the punch clamping plate.

[0010] As a preferred technical solution, one side of the lower die base is connected to a slide, a second slider slides on the slide along the horizontal direction, and the second puncture die is fixed on the second slider.

[0011] As a preferred technical solution, a second driving block is arranged on the slide along the vertical direction, a third inclined surface is arranged at the lower end of the second driving block, a fourth inclined surface is arranged at the upper end of the second slider, and the third inclined surface is slidably fitted with the fourth inclined surface.

[0012] As a preferred technical solution, slider guide blocks are provided on both sides of the first slider and both sides of the second slider.

[0013] The beneficial effects of the utility model are: providing a puncture-forming cold stamping die, which splits the two puncture concave dies, changes the direction of the movement of the inclined wedge, meets the product puncture process in a narrow space, has a more stable and reliable structure, and can effectively reduce production costs and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of a puncture-forming cold stamping die according to an embodiment;

[0016] Figure 2 A cross-sectional view of a puncture-forming cold stamping die according to an embodiment;

[0017] Figure 3 A partial exploded view of a puncture-forming cold stamping die according to an embodiment;

[0018] Figure 4 This is a schematic diagram of the partial structure of a puncture-forming cold stamping die described in an embodiment.

[0019] Figures 1 to 4 middle:

[0020] 1. First puncture die; 2. Second puncture die; 3. First drive block; 4. First slider; 5. Puncture punch; 6. Puncture hole position; 7. Pad; 8. Lower die base; 9. Die position; 10. Nitrogen return spring; 11. Connecting strip; 12. Sliding groove; 13. Punch clamping plate; 14. Slide; 15. Second slider; 16. Second drive block; 17. Slider guide block; 18. Product. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0022] like Figures 1 to 4 As shown, in this embodiment, a puncture forming cold stamping die includes a first puncture die 1, a second puncture die 2, a first driving block 3, a first slider 4 and a puncture punch 5. The second puncture die 2 is located in front of the first puncture die 1, and a puncture hole 6 is formed between the first puncture die 1 and the second puncture die 2. The lower end of the first driving block 3 is provided with a first inclined surface, the upper end of the first slider 4 is provided with a second inclined surface, and a pad 7 is connected between the first inclined surface and the second inclined surface. The first slider 4 slides in a horizontal direction, and the puncture punch 5 is fixed on the first slider 4. The front end of the puncture punch 5 passes through the puncture hole 6.

[0023] The direction of the first puncture die 1 and the direction of the second puncture die 2 form a 90° angle with each other. The first puncture die 1 and the second puncture die 2 clamp the product 18 together and form a puncture hole 6. When the first driving block 3 moves downward, the first slider 4 slides forward through the pressing contact between the first inclined surface and the second inclined surface, driving the puncture punch 5 forward to pass through the puncture hole 6, thereby performing a positioning puncture operation on the product 18.

[0024] The puncture forming cold stamping die also includes a lower die base 8, a die position 9 is provided on the lower die base 8, the first puncture die 1 is fixed in the die position 9, a first slide groove is provided on the lower die base 8, the first slider 4 slides in the first slide groove, a nitrogen return spring 10 is installed at the front end of the first slider 4, the movable end of the nitrogen return spring 10 is connected to the lower die base 8, a connecting bar 11 is provided between the first driving block 3 and the first slider 4, a sliding groove 12 is obliquely provided on one side of the first driving block 3, one end of the connecting bar 11 is fixed on the first slider 4, and the other end of the connecting bar 11 slides in the sliding groove 12 Inside, a punch clamping plate 13 is fixed to the front end of the first slider 4, and the puncture punch 5 is fixed to the middle of the punch clamping plate 13. A slide 14 is connected to one side of the lower die base 8. A second slider 15 slides horizontally on the slide 14. The second puncture die 2 is fixed on the second slider 15. A second driving block 16 is arranged on the slide 14 in the vertical direction. The lower end of the second driving block 16 is provided with a third inclined surface, and the upper end of the second slider 15 is provided with a fourth inclined surface. The third inclined surface and the fourth inclined surface are slidably fitted together. Slider guide blocks 17 are provided on both sides of the first slider 4 and both sides of the second slider 15.

[0025] When the second puncture die 2 is moved, the second driving block 16 moves downward, controlling the second slider 15 to move horizontally on the slide 14, positioning the product 18 in the front, and then combined with the side restriction of the first slider 4 to meet the positioning of the product 18 during the processing. Moreover, when the first driving block 3 moves downward, the linkage between the connecting bar 11 and the sliding groove 12 enables the first slider 4 to move forward more smoothly and press on the side of the product 18.

[0026] According to different batches of products 18, different first puncture dies 1 on the lower die base 8 can be replaced, and the second puncture dies 2 on the slide 14 can be replaced at the same time, and the corresponding combination forms an inclined wedge for positioning the product 18.

[0027] It should be stated that the above-mentioned specific implementation methods are only preferred embodiments of the present invention and the technical principles used. Within the technical scope disclosed by the present invention, any changes or replacements that can be easily thought of by technicians familiar with this technical field should be included in the scope of protection of the present invention.

Claims

1. A cold stamping die for puncture forming, characterized in that: It includes a first puncture die, a second puncture die, a first driving block, a first slider and a puncture punch, the second puncture die is located in front of the first puncture die, a puncture hole is formed between the first puncture die and the second puncture die, the lower end of the first driving block is provided with a first inclined surface, the upper end of the first slider is provided with a second inclined surface, a pad is connected between the first inclined surface and the second inclined surface, the first slider slides in a horizontal direction, the puncture punch is fixed on the first slider, and the front end of the puncture punch passes through the puncture hole.

2. A cold stamping die for puncture forming according to claim 1, characterized in that: It comprises a lower die base, on which a die position is provided, and the first puncture die is fixed in the die position.

3. A cold stamping die for puncture forming according to claim 2, characterized in that: A first slide groove is provided on the lower die base, the first slider slides in the first slide groove, a nitrogen return spring is installed at the front end of the first slider, and the movable end of the nitrogen return spring is connected to the lower die base.

4. A cold stamping die for puncture forming according to claim 1, characterized in that: A connecting bar is provided between the first driving block and the first slider. A sliding groove is provided obliquely on one side of the first driving block. One end of the connecting bar is fixed on the first slider, and the other end of the connecting bar slides in the sliding groove.

5. The cold stamping die for puncture forming according to claim 1, characterized in that: A punch clamping plate is fixed to the front end of the first sliding block, and the puncture punch is fixed to the middle part of the punch clamping plate.

6. A cold stamping die for puncture forming according to claim 2, characterized in that: One side of the lower die base is connected to a slide, a second slider is slid on the slide along the horizontal direction, and the second puncture die is fixed on the second slider.

7. A cold stamping die for puncture forming according to claim 6, characterized in that: A second driving block is provided on the slide along the vertical direction, a third inclined surface is provided at the lower end of the second driving block, a fourth inclined surface is provided at the upper end of the second sliding block, and the third inclined surface is slidably fitted with the fourth inclined surface.

8. A cold stamping die for puncture forming according to claim 7, characterized in that: Slider guide blocks are provided on both sides of the first slider and both sides of the second slider.

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