Composite stamping die structure

Abstract

The utility model discloses a kind of composite stamping die structures, it is related to mould technical field, including the lower die assembly installed on punch workstation and the upper die assembly installed on punch slide rail main body, the upper die assembly slides at the outside of lower die assembly, the top of lower die assembly is symmetrically provided with two groups of limit sheets, by symmetrically setting two groups of limit sheets in lower die assembly top, and material belt is set between two groups of limit sheets, in stamping process, lower die assembly and upper die assembly complete stamping and form clear fall, so that product and material belt can be separated naturally, avoid the product and material top dead problem caused by the height and material thickness consistent of traditional isohypse limit post, greatly reduce the demand of artificial intervention, without artificial prying product in actual production, reduce labor intensity, improve production efficiency, while reduce the product damage caused by improper manual operation, effectively improve the yield of product.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a composite stamping mold structure. Background Technology

[0002] In modern manufacturing, stamping is a highly efficient and precise forming method widely used in many industries such as automobiles, electronics, and home appliances. Stamping dies, as the core equipment in the stamping process, directly determine product quality and production efficiency. With the increasing market demand for product diversification, high precision, and low cost, the traditional stamping die structure has gradually revealed many problems, making it difficult to meet the requirements of modern industrial production.

[0003] Traditional stamping dies often use equal-height limiting posts, whose height is consistent with the material thickness. During the stamping process, after the stamping action is completed, the product and the strip are easily jammed together due to the height limitation, which prevents the product from separating from the strip naturally and requires manual intervention. Manual intervention not only increases labor intensity and reduces production efficiency, but may also damage the product due to improper operation, affecting the product yield. To address this, we propose a composite stamping die structure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a composite stamping die structure, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a composite stamping die structure, including a lower die assembly installed on the worktable of a punch press and an upper die assembly installed on the main body of the punch press slide rail. The upper die assembly slides outside the lower die assembly. Two sets of limiting plates are symmetrically arranged on the top of the lower die assembly. A material strip is arranged above the lower die assembly and between the two sets of limiting plates. The thickness of the material strip is half that of the limiting plates.

[0006] Furthermore, the lower mold assembly includes a lower mold base, a movable plate is provided above the lower mold base, and two sets of limiting plates are symmetrically installed on the top of the movable plate. Multiple sets of springs are provided between the lower mold base and the movable plate.

[0007] Furthermore, a male mold is installed on the top of the lower mold base, and multiple sets of ejector pins are arranged above the lower mold base and outside the male mold. A spring is arranged between the lower mold base and each set of ejector pins. The movable plate is slidably connected to the outside of the male mold and the multiple sets of ejector pins. Multiple sets of guide pillars are installed at the edge of the lower mold base.

[0008] Furthermore, the upper mold assembly includes an upper mold base, and a pad and an upper template are sequentially installed on the lower part of the upper mold base.

[0009] Furthermore, the bottom cavity of the upper mold base is provided with a punch plate, and a spring is installed between the punch plate and the upper mold base. The bottom of the punch plate is connected to an inner ejector plate through a connecting rod. The inner ejector plate and the upper mold plate are slidably connected. Multiple sets of punches are installed at the bottom of the pad plate, and each set of punches is slidably connected to the inner ejector plate.

[0010] Furthermore, the upper mold base is slidably connected to the outside of multiple sets of guide pillars, and the inner ejector plate and the male mold are positioned correspondingly. Beneficial effects

[0011] This invention provides a composite stamping die structure. Compared with the prior art, it has the following advantages:

[0012] A composite stamping die structure is disclosed. By symmetrically setting two sets of limiting plates on the top of the lower die assembly and placing the strip between the two sets of limiting plates, a clear drop is formed after the lower die assembly and the upper die assembly complete the stamping process, allowing the product and the strip to separate naturally. This avoids the problem of the product and material jamming caused by the consistent height and thickness of traditional equal-height limiting posts. It greatly reduces the need for manual intervention. In actual production, there is no need to manually pry the product, reducing labor intensity, improving production efficiency, and reducing product damage caused by improper manual operation, thus effectively improving the product yield. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of a composite stamping die structure;

[0014] Figure 2 This is a schematic diagram of the lower die assembly in a composite stamping die structure;

[0015] Figure 3 This is a top view of the lower die assembly in a composite stamping die structure;

[0016] Figure 4 for Figure 3 Sectional view at point AA;

[0017] Figure 5 This is a schematic diagram of the upper die assembly in a composite stamping die structure;

[0018] Figure 6 This is a top view of the upper die assembly in a composite stamping die structure;

[0019] Figure 7 for Figure 6 Sectional view at point BB.

[0020] In the diagram: 1. Lower mold assembly; 11. Lower mold base; 12. Movable plate; 13. Spring 1; 14. Male mold; 15. Ejector pin; 16. Spring 2; 17. Guide post; 2. Upper mold assembly; 21. Upper mold base; 22. Backing plate; 23. Upper template; 24. Punch plate; 25. Inner ejector plate; 26. Spring 3; 27. Punch; 3. Limiting plate; 4. Material strip. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-7 This utility model provides a composite stamping die structure technical solution: a composite stamping die structure, including a lower die assembly 1, an upper die assembly 2, limiting plates 3 and a strip 4. Specifically, two sets of limiting plates 3 are symmetrically arranged on the top of the lower die assembly 1, and the strip 4 is arranged on the lower die assembly 1 and located between the two sets of limiting plates 3. Thus, after the lower die assembly 1 and the upper die assembly 2 complete stamping, a clear drop is formed, allowing the product to naturally separate from the strip 4. This avoids the problem of "product and material jamming" caused by the height of the traditional equal-height limiting post being consistent with the material thickness, thereby reducing manual intervention and improving part output efficiency.

[0023] The lower mold assembly 1 includes a lower mold base 11, a movable plate 12, a first spring 13, a male mold 14, ejector pins 15, a second spring 16, and guide pillars 17. Specifically, when the upper mold assembly 2 stamps the strip 4, the movable plate 12 and multiple sets of ejector pins 15 move downward under pressure, compressing multiple sets of first springs 13 and multiple sets of second springs 16, so that the male mold 14 enters the upper mold assembly 2 to complete the product stamping. After the stamping is completed, multiple sets of first springs 13 and multiple sets of second springs 16 extend and push the movable plate 12 and multiple sets of ejector pins 15 upward to eject the strip 4, and place the strip 4 above the male mold 14.

[0024] The upper mold assembly 2 includes an upper mold base 21, a pad 22, an upper template 23, a punch 24, an inner ejector plate 25, a spring 26, and a punch 27. Specifically, the punch 24 and the inner ejector plate 25 are connected by a connecting rod, and the connecting rod and the pad 22 are slidably connected. After the inner ejector plate 25 contacts the strip 4, it moves upward, causing the pad 22 to compress the spring 26. The punch 27 punches holes in the strip 4, and the male mold 14 enters the upper template 23 to complete the product stamping. After the stamping is completed, the spring 26 pushes the pad 22 and the inner ejector plate 25 downward to push the product out and complete the stripping.

[0025] In actual use, the composite stamping die structure firstly drives the upper die assembly 2 to move downward in a straight line. After the inner ejector plate 25 contacts the strip 4, the pad plate 22 compresses the spring 3 26. The upper die plate 23 and the male die 14 contact the strip 4. The upper die assembly 2 continues to move downward. The male die 14 stamps the strip 4, and the punch 27 punches holes in the strip 4. The movable plate 12 and multiple sets of ejector pins 15 move downward under pressure, compressing multiple sets of spring 1 13 and multiple sets of spring 2 16, so that the male die 14 enters the upper die plate 23 to complete the product stamping.

[0026] After stamping, the main body of the press slide rail drives the upper die assembly 2 to move upward in a straight line. Multiple sets of springs 13 and 16 extend and push the movable plate 12 and multiple sets of ejector pins 15 to move upward and eject the strip 4, so that the strip 4 is above the male die 14. Spring 3 26 pushes the pad 22 and the inner ejector plate 25 downward to push the product out and complete the ejection. Since the thickness of the strip 4 is half that of the limiting plate 3, there is a gap of 2 times the material thickness between the strip 4 and the upper die plate 23 during this ejection process. When the workpiece is ejected, it will not be pushed into the strip 4.

Claims

1. A compound press die structure characterized by, It includes a lower die assembly (1) installed on the punch press workbench and an upper die assembly (2) installed on the punch press slide rail body. The upper die assembly (2) slides outside the lower die assembly (1). Two sets of limiting plates (3) are symmetrically arranged on the top of the lower die assembly (1). A material strip (4) is arranged above the lower die assembly (1) and between the two sets of limiting plates (3). The thickness of the material strip (4) is half that of the limiting plates (3).

2. The composite stamping die structure according to claim 1, characterized in that, The lower mold assembly (1) includes a lower mold base (11), a movable plate (12) is provided above the lower mold base (11), and two sets of limiting plates (3) are symmetrically installed on the top of the movable plate (12). Multiple sets of springs (13) are provided between the lower mold base (11) and the movable plate (12).

3. The composite stamping die structure according to claim 2, characterized in that, The lower mold base (11) is equipped with a male mold (14) on its top. Multiple sets of ejector pins (15) are arranged above the lower mold base (11) and outside the male mold (14). A spring (16) is arranged between the lower mold base (11) and each set of ejector pins (15). The movable plate (12) is slidably connected to the outside of the male mold (14) and the multiple sets of ejector pins (15). Multiple sets of guide pillars (17) are installed at the edge of the lower mold base (11).

4. The composite stamping die structure according to claim 1, characterized in that, The upper mold assembly (2) includes an upper mold base (21), and a pad (22) and an upper template (23) are sequentially installed on the lower part of the upper mold base (21).

5. The composite stamping die structure according to claim 4, characterized in that, The bottom cavity of the upper mold base (21) is provided with a punch plate (24), and a spring three (26) is installed between the punch plate (24) and the upper mold base (21). The bottom of the punch plate (24) is connected to an inner ejector plate (25) by a connecting rod. The inner ejector plate (25) and the upper mold plate (23) are slidably connected. The bottom of the pad plate (22) is equipped with multiple sets of punches (27), and each set of punches (27) is slidably connected to the inner ejector plate (25).

6. The composite stamping die structure according to claim 5, characterized in that, The upper mold base (21) is slidably connected to the outside of multiple sets of guide pillars (17), and the inner ejector plate (25) and the male mold (14) are positioned correspondingly.

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