关键词: 涂装车间；车门支具；漆面蹭漆；支具优化

Abstract: A domestic painting workshop adopts two matching doors and pillars, with a locking function of the door plastic brace. In the daily production and use process, it is found that the brace has the quality problem of door paint rubbing. By investigating the cause of the problem inside and outside the workshop, track the painting process, brace size, door status, etc. At the same time, the IQ-VIS gap measurement tool is used, and it is found that the door height changed in order to ensure the clearance smoothness of the final assembly door after assembly, and the door height is raised by the change of the assembly and welding process, which caused the door height position to be offset and contact with the brace. In the case that the assembly and welding workshop cannot make improvements and optimizations, the size of the door brace is optimized through the painting workshop. The contact clearance between the door brace and the door is increased and the door paint is avoided. The follow-up manual repair work is reduced, and the repair cost of the workshop is also saved. After verification on the production line, this quality problem is finally fundamentally solved and good body quality is guaranteed.

Key words: Painting workshop; Door brace; Paint rubbing; Brace optimization