Abstract: With the advancement of automation level in body processes, synchronous engineering analysis faces increasing challenges. From manual hemming to robotic automatic hemming, the improvement of the process level has increasingly refined the requirements for process manufacturability, thus eliminating the interference problem of car door hemming bring about by automatic advancement.Firstly, detailed data analysis of the door's inner and outer panels clamping is carried out from the angle of the inner plate, the process data simulation of the inner plate and the inspection and confirmation of the safety distance of the section. Then, it is confirmed whether the data of the inner and outer panels meet the requirements of the robot's automatic clamping. Finally, in view of the interference areas that do not meet the requirements, it is proposed to change the flange edge of the inner panels , change the angle of the outer panels, and reduce the flanging height of the outer panels, and engineering technology to avoid the four solutions to solve the interference problem, eliminate the late field production bring by the clamping interference, hemming quality and other production and manufacturing problems, to ensure the smooth and rapid implementation of the project. The results show that the module analysis can help achieve synchronous engineering analysis of welding and improve the level of car door design and manufacturing.

Key words: inner and outer panels; hemming process; automatic clamping; interference analysis

摘要： 随着车身工艺自动化水平的提升，同步工程分析面对越来越多的挑战。从手工扣合到 机器人自动扣合，工艺水平的提升对工艺可制造性的要求越来越精细，从而消除自动化提升 带来的车门包边扣合干涉问题。首先从内板上件角度、内板过程数据模拟以及断面安全距离 检查确认三个步骤对车门内外板扣合进行详细的数据分析，然后确认内外板数据是否满足机 器人自动扣合的要求，最后针对不满足干涉区域，提出更改内板法兰边、更改外板型面角度、 减短外板翻边高度，以及工程技术规避四项方案解决干涉问题，消除后期现场生产所带来的 扣合干涉、包边质量等生产制造问题，确保项目平稳快速实施。结果可知，通过该模块分析 可助力焊装同步工程分析达成，提升车门设计制造水平。

关键词: 内外板；包边工序；自动扣合；干涉分析