Aluminum alloy coarse grain ring production mold

By adopting an arc-shaped surface structure at the bottom of the stamping die head of the aluminum alloy ring production mold, the problem of coarse crystal ring caused by the second straight angle is solved, and the inner wall accuracy and flatness of the aluminum alloy parts are improved.

CN222740132UActive Publication Date: 2025-04-11CHONGQING DONGQING ALUMINUM ALLOY FORGING CO LTD
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Patent Information

Application Number
CN202421236850.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-31
Publication Date
2025-04-11
Estimated Expiration
2034-05-31

AI Technical Summary

Technical Problem

The existing aluminum alloy ring production molds are prone to forming a coarse crystal ring on the inner wall of the aluminum alloy piece due to the second straight rotation angle at the bottom of the stamping die head, which affects the accuracy and flatness.

Method used

A aluminum alloy rough crystal ring production mold was designed, and the bottom of its stamping die head was structured with an arc-shaped surface and tangent to the side, avoiding the formation of a second straight corner.

Benefits of technology

By eliminating the second straight angle, the probability of generation of coarse crystal rings is reduced, the finished product quality of the aluminum alloy parts is improved, and the inner wall is smoother and smoother, meeting customer quality requirements.

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Abstract

The utility model discloses a production die for aluminum alloy coarse crystal rings, comprising: a hydraulic press, a control console, a stamping die head and a stamping die body, wherein the output end of the hydraulic press is connected to the stamping die head, the stamping die head is aligned with the stamping die body below, the stamping die body contains aluminum alloy parts, and the hydraulic press is electrically connected to the control console; the stamping die head is a T-shaped structure, the bottom surface of the stamping die head is a stamping bottom surface, the side surface of the bottom of the stamping die head is a stamping side surface, the stamping bottom surface is an arc surface structure, and the stamping bottom surface is tangent to the stamping side surface; the stamping die body is a barrel structure, and an inner bottom wall and an inner side wall are formed in the inner hole of the stamping die body, and the inner bottom wall matches the shape of the stamping bottom surface. The production die for aluminum alloy coarse crystal rings solves the problem in the prior art that more coarse crystal rings appear on the inner wall of the aluminum alloy part due to the second straight angle formed at the bottom of the stamping die head.
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Claims

1. A mold for producing aluminum alloy coarse grain rings, comprising: A hydraulic press (1), a control console (2), a punching die (13) and a punching die body (14), wherein the output end of the hydraulic press (1) is connected to the punching die (13), the punching die (13) is aligned with the punching die body (14) below, the punching die body (14) contains an aluminum alloy part (15), and the hydraulic press (1) is electrically connected to the control console (2); characterized in that: The punching die (13) is a T-shaped structure, the bottom surface of the punching die (13) is a punching bottom surface (134), the side surface of the bottom of the punching die (13) is a punching side surface (131), the punching bottom surface (134) is an arc surface structure, and the punching bottom surface (134) is tangent to the punching side surface (131); The stamping die body (14) is a barrel-shaped structure, and an inner bottom wall and an inner side wall are formed in the inner hole of the stamping die body (14), and the inner bottom wall matches the shape of the stamping bottom surface (134).

2. The aluminum alloy coarse grain ring production mold according to claim 1, characterized in that: The stamping side surface (131) comprises: a working section (132) and a connecting section (133); the working section (132) is a cylindrical structure; the working section (132) is tangent to the stamping bottom surface (134); the connecting section (133) is connected above the working section (132); the connecting section (133) is a truncated cone structure; the small end of the connecting section (133) is located above the large end of the connecting section (133).

3. The aluminum alloy coarse grain ring production mold according to claim 1, characterized in that: Also includes: A support rod (3), a push rod (4) and a return spring (5), wherein the support rod (3) is slidably connected to the lower end of the hydraulic press (1), the push rod (4) is slidably connected inside the lower end of the hydraulic press (1), and a return spring (5) is sleeved on the lower end of the push rod (4) and is located inside the hydraulic press (1).

4. The aluminum alloy coarse grain ring production mold according to claim 3, characterized in that: The length of the support rod (3) is smaller than the stroke of the punching die of the hydraulic press (1), and thus before the punching die is completely reset, the support rod (3) is driven to move upward.

5. The aluminum alloy coarse grain ring production mold according to claim 4, characterized in that: It also includes a base (6), which is arranged at the rear end of the hydraulic press (1), a cylinder (7) is arranged on the base (6), and a push rod of the cylinder (7) faces the hydraulic press (1), and a push plate (8) is arranged at the front end of the push rod of the cylinder (7).

6. The aluminum alloy coarse grain ring production mold according to claim 5, characterized in that: It also includes a rubber pad (9), which is fixed to the front end of the push plate (8).

7. The aluminum alloy coarse grain ring production mold according to claim 6, characterized in that: It also includes a discharge bracket (10) and a roller (11), wherein the discharge bracket (10) is fixedly connected to the front end of the hydraulic press (1), and the roller (11) is rotatably connected to the discharge bracket (10).

8. The aluminum alloy coarse grain ring production mold according to claim 7, characterized in that: It also includes a buffer ring (12), which is sleeved on the roller (11).