A kind of thin-walled part deburring clamp

By designing a deburring fixture for thin-walled parts, and utilizing the cooperation of a punch and an ejector block, the problem of burr removal during the injection molding process of thin-walled parts was solved, thereby improving the integrity and appearance quality of the parts.

CN224675339UActive Publication Date: 2026-08-25GUIZHOU ZHENHUA HUALIAN ELECTRONICS
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Patent Information

Application Number
CN202522034352.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2026-08-25
Estimated Expiration
2035-09-22

AI Technical Summary

Technical Problem

Thin-walled parts are prone to missing material and residual burrs during injection molding, which affects the integrity and appearance quality of the parts. Existing technologies are difficult to effectively remove gate burrs.

Method used

Design a deburring fixture for thin-walled parts, including an upper die and a lower die. By utilizing the cooperation between the punch and the push block and the connection through a spring, a tight fit and deburring operation can be achieved for the product parts.

Benefits of technology

Ensure the integrity of parts during the deburring process to avoid missing material and residual burrs, thereby improving production efficiency and appearance quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of for thin-walled part deburring clamp, including upper die and lower die;The upper die includes male die, punch is equipped in male die;The lower die includes lower die fixed plate, and lower die insert is equipped on lower die fixed plate;Screw plug and push block are equipped in the lower die insert, and push block is connected with screw plug by spring;Punch and push block are equipped with the product part of letting go slot that is put into.This utility model guarantees the integrity of part in the process of removing gate burr, and deburring is taken simple, avoid the phenomenon such as meat, residual burr of part in the process of removing burr, improve production efficiency, guarantee the appearance quality of part.
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Description

Technical Field

[0001] This utility model relates to a deburring fixture for thin-walled parts, belonging to the field of gate removal technology for thin-walled injection molded parts. Background Technology

[0002] Thin-walled parts are difficult to fill completely during injection molding, especially with materials that have poor flowability. To ensure full filling, the gate thickness is designed to be the same as the maximum wall thickness of the part, and multiple injection points are used. However, during deburring, the parts are prone to incomplete filling and residual burrs, which cannot guarantee the integrity of the parts. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a deburring fixture for thin-walled parts.

[0004] This utility model is achieved through the following technical solution.

[0005] This utility model provides a deburring fixture for thin-walled parts, including an upper die and a lower die; the upper die includes a punch, and a punch head is provided inside the punch; the lower die includes a lower die fixing plate, and a lower die insert is provided on the lower die fixing plate; a screw plug and a push block are provided inside the lower die insert, and the push block and the screw plug are connected by a spring; a clearance groove for inserting product parts is provided between the punch and the push block.

[0006] The punch is connected to the punch head via a pivot pin.

[0007] The upper end of the punch is provided with a connecting hole.

[0008] The lower mold fixing plate is provided with fixing holes.

[0009] The beneficial effects of this utility model are: ensuring the integrity of the parts during the deburring process, and making it easy to remove the parts after deburring, avoiding the occurrence of missing parts or residual burrs during the deburring process, improving production efficiency, and ensuring the appearance quality of the parts. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the working process of this utility model; Figure 2 This is a plan view of the present invention; Figure 3 yes Figure 2 Top view; Figure 4 This is a structural schematic diagram of the product parts (including the gating system); In the diagram: 1-lower die fixing plate, 2-lower die insert, 3-punch, 4-shaft pin, 5-punch, 6-push block, 7-spring, 8-screw plug, 9-product part, 10-hand press, 11-hexagonal screw, 12-internal hexagonal cylindrical head screw, 13-hand press handle. Detailed Implementation

[0011] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0012] like Figure 2 and 3 As shown, the punch 5 and the die 3 are connected by a shaft pin 4, the push block 6 is mounted on the lower die insert 2, and the bottom is provided with a spring 7 and fixed by a screw plug 8; the lower die insert 2 is mounted on the lower die fixing plate 1, and a clearance groove for inserting the product part 9 is provided between the punch 5 and the push block 6.

[0013] Specifically, such as Figure 1 As shown, the punch 5 is fixed to the hand platen press 10 with hexagonal head screws 12, and the lower die fixing plate 1 is fixed to the hand platen press 10 with hexagonal screws 11. The deburring work is achieved by operating the hand platen press handle 13.

[0014] The working principle of this utility model is as follows: After product part 9 is injection molded, product part 9 (including the sprue) is placed in the fixed fixture push block 6. The hand-operated pressure press handle 13 is used to push the punch 5 downwards until it forms a tight fit with product part 9 and push block 6. The hand-operated pressure press handle 13 is continued to push the punch 5 downwards, and the spring 7's counter-force removes the sprue and burrs from product part 9. Then, the hand-operated pressure press handle 13 is released, and the punch 5 returns to its original position. Through the action of the spring 7, push block 6 slides upwards along the lower mold insert 2, removing product part 9 and completing one deburring cycle. Figure 4 .

Claims

1. A deburring fixture for thin-walled parts, comprising an upper die and a lower die, characterized in that: The upper die includes a punch (3), and a punch (5) is provided inside the punch (3); the lower die includes a lower die fixing plate (1), and a lower die insert (2) is provided on the lower die fixing plate (1); a screw plug (8) and a push block (6) are provided inside the lower die insert (2), and the push block (6) and the screw plug (8) are connected by a spring (7); a clearance groove for inserting product parts (9) is provided between the punch (5) and the push block (6).

2. The deburring fixture for thin-walled parts as described in claim 1, characterized in that: The punch (3) is connected to the punch (5) via a pin (4).

3. The deburring fixture for thin-walled parts as described in claim 1, characterized in that: The upper end of the punch (5) is provided with a connecting hole.

4. The deburring fixture for thin-walled parts as described in claim 1, characterized in that: The lower mold fixing plate (1) is provided with fixing holes.