Sand core structure and hollow subframe
The integrated sand core structure solves the problems of complexity and safety risks in subframe casting molds, achieving higher casting quality and manufacturing efficiency, and improving the overall performance of the subframe.
CN115673249BActive Publication Date: 2026-05-29ANHUI VIE AUTO PARTS CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI VIE AUTO PARTS CO LTD
- Filing Date
- 2022-10-31
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
In the existing technology, the casting molds for the subframe are complex and costly, and there are also safety risks and low casting quality problems, especially the sand core at the suspension mounting hole is prone to breakage and serious flash phenomenon.
Method used
The sand core structure adopts an integrated design, forming a whole sand core by integrally molding the support core and support arm core with the crossbeam core, eliminating the side core pulling mechanism, and adding square holes to improve strength and casting quality.
Benefits of technology
It improves the overall strength and casting quality of sand cores, reduces manufacturing complexity and cost, increases manufacturing pass rate and cycle time, and enhances the pass rate of bushing pressing.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115673249B_ABST
Abstract
The application provides a sand core structure and a hollow auxiliary frame. The sand core (2) is an integrated structure. The sand core (2) comprises a beam core (1). A hole (4) for forming a motor fixing hole (3) is formed on the beam core (1). The hole (4) is arranged in the front-rear direction and penetrates through the front and rear sides of the beam core (1). A supporting core (5) is arranged in the hole (4). The supporting core (5) is fixed to the side of the hole (4) through a supporting arm core (6). The supporting core (5), the supporting arm core (6) and the beam core (1) are integrally formed. The sand core (2) can save the side core pulling structure, has higher efficiency, and is convenient for later bushing pressing.
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