A punching fixture for lead frame
By designing a punching fixture for the lead frame and utilizing a positioning pin and support bar structure, the problem of difficulty in removing the lead frame in small-batch production was solved, improving production efficiency and the versatility of the fixture, and reducing costs.
CN224424111UActive Publication Date: 2026-06-30SICHUAN XUMAO MICRO TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN XUMAO MICRO TECH CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
In existing technologies, when manually punching lead frames in small-batch production, it is difficult to remove excess lead frames, resulting in low production efficiency and easy deformation.
Method used
A lead frame punching fixture was designed, including a base, a punching component, and a positioning component. By using a positioning pin that moves vertically, and in conjunction with a support bar and a push block structure, the lead frame can be easily removed and positioned, adapting to lead frames of different sizes.
Benefits of technology
It improves production efficiency, reduces tooling costs, and enhances the versatility of tooling, facilitating the removal and precise positioning of excess lead frames.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224424111U_ABST
Abstract
A lead frame punching fixture includes a base, a punching assembly, and a positioning assembly. The base has through slots running vertically down both sides along its length. The punching assembly includes a support seat mounted on the base, with both sides of the support seat above the through slots along its length. The top surface of the support seat has multiple spaced-apart protrusions along its length. A vertically movable stamping seat is located above the support seat, and the bottom surface of the stamping seat has multiple spaced-apart pressure strips that intersect with the protrusions along its length, used for punching the lead frame. The positioning assembly includes two L-shaped support bars installed in the through slots and moving towards each other along the width of the base. These support bars limit the movement of the support seats on both sides. The inner side of each support bar has multiple spaced-apart positioning pins that move along its length, width, and vertical direction. In application, the positioning pins pass through the lead frame. This facilitates the removal of excess lead frame material, improving production efficiency.
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