Research On The Productivity Improvement Of An Automobile Electronic Switch Production Line Based On LP

With the aggravation of the market competition,the company was faced with the problem that how to improve productivity and reduce the cost.This article taken the production line as the research object,to enhance the company's production capacity by using the theories of lean production such as streamline production,the single minute exchange of die and so on.1.Capacity improve method system construction.The system construction of capacity improve was built from three aspects: the basic principle,implementation method and enhancement method based on the Lean Production Method and the characteristics of automobile electronic switch production.2.Analyzing the current condition and determined product to improve.Analyzing the production cost and annual output,the article finding that the capacity is extremely tight,the production costs is high and so on.By analyzing the output gaps of each product,the article determined the specific product to improve.3.The establishment of productivity improvement plan and scheme.By analyzing the demand capacity of BT31,the article set up the target capacity of assembly line.By analyzing the assembly line of BT31,the article finding that the assembly line exiting some problem,such as assembly line imbalanced,the operation method is unreasonable,the handling distance is too long,lack of material,material accumulation and so on.It determined the two improvement projects: the improvement of assembly line and BT31 shell productivity.Accordance with the existing problems in the assembly line,the capacity of the assembly line was enhanced by optimizing the process and production planing.4.The improvement of BT31 shell productivity.By analyzing the production status of BT31 shell,the article found the bottleneck process.Combined with the actual situation ofthe injection molding machine,the time loss was divided into four categories: die change loss,fault loss,organization loss and quality loss.By collecting and analyzing data of the injection molding machine,it calculated the OEE of the injection molding machine and the proportion of four kinds of time loss,then analyzed the proportion of each kind of time loss and made the evaluation and analysis for the injection molding machine's OEE.The improvement measures such as the single minute exchange of die,the improvement of the die's fault and the improvement of material supply were proposed based on the detailed analysis of the four kinds of time loss.By analyzing the current condition of the company,the productivity improvement for the assembly line of BT31 and BT31 shell was implemented,and achieved good effect in practical application.The research results can also be applied to similar enterprises.