Research On The Improvement Of Automobile Interior Trim Assembling Line Based On Ie Technologies

The automobile manufacturing enterprises in China have been constructed and developed for several decades, but the management levels of enterprises are not high. Various wastes are very serious in the manufacturing process, and the labor productivity per capita is inferior to one quarter with foreign counterparts. The automobile interior trim assembling line in FAW-Hongta Yunnan Automobile Co., Ltd. is of low productivity, reflected in the complexity of the concrete operation of workers, long waiting time in the operation, lack of standardized operation processes, and unbalanced production line. It cries for improving every unreasonable issues in the interior trim assembling line and increasing its efficiency by using the methods and techniques of works study'Linking theory with practice, based on the analysis of a great amount of literatures, and referring to the latest researches and applications in IE field at home and abroad, this dissertation deals with the systematic analysis and improvement of automobile interior trim assembling line in FAW-Hongta Yunnan Automobile Co., Ltd.This summarizes development status of the work study technology and measurement about improvement at home and abroad;intronduces the factors affect the productivity from men-machine-environment aspects;expatiates the basic principles and its circular improving process of assembling line improvement, and settles down the research contents and key techniques in this dissertation. Researching on the 24 operating positions in the automobile interior trim assembling line in FAW-Hongta, this dissertation analyzes the layout of assembly shop, plots the circuit diagram and the flow process chart, investigates the current situation in details and the data collection, determines the target of improvement, completes the facility improvement, the associated operation analysis, the analysis of personnel working process, the two-hand activity analysis, and the therblig analysis for bottleneck operating positions. This dissertation set down the standard operating time by MOD method, establishes the whole process of system improvement for assembling line manufacturing system, and analyzes and evaluates the improvement effectiveness. According to the principle of motion efficiency, this dissertation accomplishes the improvement for the automobile interior decoration assembling line process such as elimination, combination, rearrangement and simplification, the production tack decreased to 150s from 200s, the line balancing rate enhanced to 81.63% from 63.62%, and the production capacity increased 25%.