Blank holder and stamping die for a stamping die
CN224346797UActive Publication Date: 2026-06-12BMW BRILLIANCE AUTOMOTIVE
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Patent Information
- Authority / Receiving Office
- CN ¡ China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BMW BRILLIANCE AUTOMOTIVE
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-12
AI Technical Summary
Technical Problem
During the stamping process of automotive parts, aluminum parts are prone to defects due to the adhesion of debris. Existing technologies reduce production costs and efficiency by adding cleaning devices or processes.
Method used
A grooved grid is set on the blank holder of the stamping die to form a chip-receiving area. The grooved grid conforms to the shape of the part and covers areas prone to defects, thereby accommodating chips, reducing surface defects and cleaning frequency.
Benefits of technology
It improved the first-pass yield of aluminum parts, reduced cleaning processes, increased production efficiency, and reduced part rework rate and downtime.
⌠Generated by Eureka AI based on patent content.
Smart Images
Figure CN224346797U_ABST
Abstract
The present disclosure relates to a blank holder for a stamping die and a stamping die. The blank holder is adapted to be assembled on the stamping die. The blank holder is configured to have an outer peripheral contour conforming to the shape of a workpiece to be processed. The blank holder has a blank holding surface facing the workpiece in operation. The blank holding surface is provided with a chip accommodating area for accommodating chips on the workpiece, in which a groove mesh for receiving the chips is arranged. The blank holder with the groove mesh of the stamping die can reduce the probability of the blank holding surface and the chips contacting, so as to greatly reduce the surface defects caused by the chips, thereby improving the one-time pass rate of the aluminum workpiece, and reducing the cleaning process times, thereby greatly improving the production efficiency.
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