关键词: 内外板；包边工序；自动扣合；干涉分析

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