关键词: 偏差流分析法, 多工位装配；装配稳健度；装配顺序规划

Abstract:

Based on the poor quality of present assemble sequence planning aimed at producing time and operating cost, stream of variation analysis method(SOVA) was applied to investigate sequence optimization of two dimensional multi-station assembly in order to improve the assemble quality of products.As study object of two dimensional multi-station assembly process,the variation source of affecting assembly quality was analyzed,a mathematic model of dimensional variation propagation was established,and the concept of “assembly robust degree” was put forward to describe and judge whether the assembly sequence was well.The assembly sequence of four parts on the white body of automotive was given for an example,three kinds of different assembly sequence through using assembly robust degree were analyzed and compared,and the satisfactory assembly effect was obtained.The example and its simulation indicate that the SOVA can be used to analyze and choose assembly sequence scheme.It provides a new method for optimization design of two dimensional multi-station assembly processes.

Key words: stream of variation analysis method, multi-station assembly, assembly robust degree, assembly sequence planning