汽车前后门装配定位方案虚拟仿真分析

Virtual Simulation Analysis of Car Front and Rear Door Assembly Positioning Scheme

汽车四门区域的精度控制需要充分运用尺寸链分析方法进行装配定位分析,制定符合现有生产工艺水平的、能够提高匹配精度的最优装配定位方案。通过三维分析软件对比前后门两个主流装配定位方案的优劣,量化了不同的装配定位方案造成偏差的影响贡献因子和灵敏度对比,提出了结合实际项目结构设计和工艺过程制定合理的质量控制方案,以降低公差较大的影响因子对DTS偏差的灵敏度。

The accuracy control of automobile four-door area needs to make full use of dimension chain analysis method to carry out assembly positioning analysis, and formulate the optimal assembly positioning scheme to improve the matching accuracy in accordance with the existing production process level. By comparing the advantages and disadvantages of two main assembly positioning schemes of front and rear doors with three-dimensional analysis software, the contribution factors and sensitivity comparisons of the deviation caused by different assembly positioning schemes were quantified, and a reasonable quality control scheme was put forward based on the actual project structure design and process, in order to reduce the sensitivity of DTS deviation caused by larger tolerance impact factors.