一种汽车冲压模具曲面打磨方法和系统

CN122142834BActive Publication Date: 2026-07-17TIANJIN PUXIN MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN PUXIN MOULD CO LTD
Filing Date
2026-05-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

During continuous grinding, the morphological differences of different areas on the surface of the stamping die and the differences in the parameters of the grinding head itself cause dynamic changes in the contact stress and grinding stress of the grinding head on the complex curved surface, forming a complex thermal stress coupling superposition effect, which affects the grinding quality and causes abnormalities such as uneven grinding surface or grinding texture.

Method used

By constructing the interface contact characteristics between the virtual grinding head and the three-dimensional model, analyzing the characteristics of the moving vector and the vector angle, calculating the thermal stress coupling coefficient, screening and optimizing the control parameters of the grinding head, and reducing the accumulation of stress and thermal effects.

Benefits of technology

It effectively reduces the accumulation of stress and heat effects during the polishing process, improves polishing quality, avoids uneven polishing surfaces and polishing textures, and ensures polishing efficiency.

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Abstract

本发明涉及工业打磨领域,尤其涉及一种汽车冲压模具曲面打磨方法和系统,本发明确定虚拟磨头与三维模型的交界面接触特征,基于空间坐标集以及三维模型对各行进点进行移动矢量分析,后续确定行进点集群的热应力耦合系数,区分热应力耦合行进点集群,在磨头行进至热应力耦合行进点集群时,确定部分行进点进行梯度优化筛选,并对热应力耦合行进点集群的剩余行进点对应控制参数进行优化,本发明预先感知潜在热应力耦合风险的若干行进点,适应性的选择较优的优化方式对各行进点的控制参数进行优化,进而减少应力与热效应逐渐累积形成复杂热应力耦合叠加,导致特定区域打磨时出现打磨面不均匀、存在打磨纹理的现象,提高打磨质量。
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