Fine blanking die waste anti-jumping structure

Abstract

The utility model discloses an anti-jumping structure for waste of a fine blanking die, which has the advantage that after a female die and a male die work for a long time, the probability that stamping waste is brought out of the female die along with the male die is low. The utility model discloses a waste material anti-bounce structure, which comprises an upper die holder and a lower die holder, the upper die holder is connected with the lower die holder in a sliding manner through a guide rod and a guide sleeve, and the waste material anti-bounce structure is arranged between the upper die holder and the lower die holder, and is characterized in that the waste material anti-bounce structure comprises a female die, a female die fixing plate and a cavity bump, the female die fixing plate is installed on the lower die base through a bolt, the female die is installed on the female die fixing plate, a female die hole is formed in the female die, and the cavity protruding blocks are arranged on the hole wall of the female die hole and are symmetrically distributed.

Description

Technical Field

[0001] This utility model relates to the field of fine stamping die technology, specifically to a structure for preventing scrap from jumping out of fine stamping dies. Background Technology

[0002] Fine blanking dies are used in precision blanking processes, primarily in the electronics, automotive, and hardware industries. They produce parts with high precision and flush shear surfaces. During normal production, the punch of the fine blanking die enters the die cavity and punches out the waste material. Due to the thick material and shallow blanking, stamping oil needs to be added to the material surface. However, after prolonged use, the die cavity wears more, and the gap between the die and punch widens. The stamping oil can easily create a vacuum between the material surface and the die, leading to a higher probability that the stamping waste will be carried out of the die cavity along with the punch, affecting product production. Utility Model Content

[0003] To address the drawback of existing fine blanking dies where stamping waste is frequently carried out of the die along with the punch after prolonged operation, this invention provides a scrap anti-jump structure for fine blanking dies, which reduces the likelihood of stamping waste being carried out of the die along with the punch after prolonged operation.

[0004] This utility model provides the following technical solution:

[0005] It includes an upper mold base and a lower mold base. The upper mold base is slidably connected to the lower mold base via a guide rod and a guide sleeve. A scrap anti-jump structure is provided between the upper mold base and the lower mold base. The scrap anti-jump structure includes a die, a die fixing plate, and cavity protrusions. The die fixing plate is bolted to the lower mold base. The die is mounted on the die fixing plate. The die has a die hole. The cavity protrusions are disposed on the wall of the die hole and are symmetrically distributed.

[0006] Its further features are:

[0007] A punch pad, a stripper back plate, and a stripper plate are sequentially arranged below the upper die base. The punch pad is installed on the upper die base. The stripper back plate is connected to the stripper plate by bolts to form a stripper body. The stripper body is installed on the punch pad and corresponds to the die. A guide block is installed inside the stripper plate. One end of the punch is connected to the punch pad by bolts, and the other end passes through the stripper body and the guide block in sequence.

[0008] A punch adjustment pad is provided at the connection between the punch and the punch pad.

[0009] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0010] In the scrap anti-jump structure, a cavity protrusion is provided in the die hole of the die cavity. The cavity protrusion provides a force. When the blanking retracts, the probability of the scrap being carried out of the die cavity by the force of the cavity protrusion is low, thus ensuring product production efficiency.

[0011] The addition of a punch adjustment pad increases the stability of the punch, and a stable punch further reduces the chance of scrap being carried out of the die. Attached Figure Description

[0012] Figure 1 This is a side view of the overall structure of this utility model;

[0013] Figure 2 This is a top view of the structure of the cavity protrusion in the die hole of this utility model.

[0014] Explanation of reference numerals in the attached figures:

[0015] 1. Punch; 2. Die; 3. Cavity punch; 4. Upper die holder; 5. Lower die holder; 6. Punch backing plate; 7. Punch adjusting shim; 8. Stripper backing plate; 9. Stripper plate; 10. Guide block; 11. Die fixing plate. Detailed Implementation

[0016] This utility model provides, for example Figure 1 The waste anti-jump structure for fine blanking dies shown includes an upper die holder 4 and a lower die holder 5. The upper die holder 4 is slidably connected to the lower die holder 5 via a guide rod and a guide sleeve (not shown in the figure). A waste anti-jump structure is provided between the upper die holder 4 and the lower die holder 5. The waste anti-jump structure includes a die cavity 2, a die cavity fixing plate 11, and a cavity protrusion 3. The die cavity fixing plate 11 is bolted to the lower die holder 5. The die cavity 2 is mounted on the die cavity fixing plate 11. A die cavity hole is provided on the die cavity 2. Figure 2 The cavity protrusions 3 are set on the wall of the die hole and are symmetrically distributed;

[0017] Below the upper mold base 4, a punch pad 6, a stripper back plate 8, and a stripper plate 9 are arranged in sequence. The punch pad 6 is installed on the upper mold base 4. The stripper back plate 8 is connected to the stripper plate 9 by bolts to form a stripper body. The stripper body is installed on the punch pad 6, corresponding to the die 2. A guide block 10 is installed inside the stripper plate 9. One end of the punch 1 is connected to the punch pad 6 by bolts, and the other end passes through the stripper body and the guide block 10 in sequence.

[0018] A punch adjusting pad 7 is provided at the connection between punch 1 and punch pad 6.

Claims

1. A scrap anti-jump structure for fine blanking dies, comprising an upper die base and a lower die base, wherein the upper die base is slidably connected to the lower die base via a guide rod and a guide sleeve, and a scrap anti-jump structure is provided between the upper die base and the lower die base, characterized in that: The waste anti-jump structure includes a die, a die fixing plate, and cavity protrusions. The die fixing plate is bolted to the lower die base. The die is mounted on the die fixing plate. The die has a die hole. The cavity protrusions are arranged on the wall of the die hole and are symmetrically distributed.

2. The anti-jump structure for fine stamping die scrap according to claim 1, characterized in that: A punch pad, a stripper back plate, and a stripper plate are sequentially arranged below the upper die base. The punch pad is installed on the upper die base. The stripper back plate is connected to the stripper plate by bolts to form a stripper body. The stripper body is installed on the punch pad and corresponds to the die. A guide block is installed inside the stripper plate. One end of the punch is connected to the punch pad by bolts, and the other end passes through the stripper body and the guide block in sequence.

3. The anti-jump structure for fine stamping die scrap according to claim 2, characterized in that: A punch adjustment pad is provided at the connection between the punch and the punch pad.

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