Improvement Of Production Site Management In X Company Wire-harness Assembly

X company manufactures wire-harness for OEM.With the fierce automotive market environment,due to the assembly characteristics of the wire harness products,the company as a labor-intensive enterprises is facing a common problem that high turnover rate of employee and difficult to recruited employees.On the other hand,the OEM requests down the costs every year which caused the profit of company has been compressed continually.Based on hereinbefore problems,the company must optimize its production mode with available resources to improve production site management continually,for enhancing productivity,eliminating waste,reducing the costs,exploiting potentialities of workers and machines,delivering products to customer with high quality in time.In this article,it will analyze and investigate management problem of X company harness assembly production site,investigating and studying from the aspect of man、machine、material、method and environment in terms of datum to analyze the production process of wire-harness assembly.Based on current production status to draw the value stream mapping.In this drawing,we can find the bottle neck that how many wastes we are facing in current production.It has been exposed that X company harness assemble production line has a lot of WIP due to unbalance production line,the operators have many motion wastes due to unreasonable layout and unsteady production quality caused by the high turnover rate of the workers.To solve above problems,this article optimizes the production line and improves the production efficiency by studying the takt time of the bottleneck station,improving the layout and fixture and so on.By standardizing operators’ techniques with standard operation procedure and using learning curve to understand the proficiency of the workers to reduce the defect rate.After solving the problems of production balance and quality detects,the pull-production mode is introduced to the harness assembly line,which could effectively reduce unnecessary waste in the production process and greatly reduce WIP,Meanwhile,recalculate the safety inventory of X company.After the improvement plan implement,through direct and indirect benefit optimization results comparison,the optimization results prove that the engine production line on X company production site management is very successful.We have more confidence to promote the same production mode to other production line for making X company more competitive.The opponents of the automotive wiring harness market and new energy vehicles release under the opportunity of new productivity,to have more space for development.