Analysis And Research On Balance Of Production Line For Maintenance And Processing Of Railway Freight Car Axle

In recent years,with the development of China’s railway freight transport,the ownership of railway freight cars has been in a state of continuous growth,and the corresponding demand for maintenance and processing of railway freight car axles is also growing.At present,the operation time of each station in the freight car axle maintenance and processing production line is unbalanced,and the balance of the production line is poor,which affects the overall production efficiency of the workshop.Meanwhile,most of the workshops belong to semi-automatic production,the working relationship between personnel and machinery and equipment has not been effectively coordinated,and there are idle personnel.It is of theoretical and practical value to study the balance of the work of each station of the production line,coordinate the relationship between man-machine operation and improve the efficiency of axle maintenance and processing production line.This paper takes an axle maintenance and processing workshop in China as an example,investigates and analyzes the basic processes and processes of the workshop,comprehensively uses the industrial engineering method,mathematical analysis method and simulation modeling method to carry out the balance analysis of the railway freight car axle production line,and puts forward the optimization scheme,so as to improve the production efficiency of the workshop,and provides reference for the optimization of similar workshops.According to the basic process flow of the workshop,a simulation model of the workshop production line is established,and the current status and existing problems of the workshop production line are analyzed based on the results of the simulation output.The "5W1H" analysis method and the principle of ECRS are used to analyze the production line process flow.In addition,according to the characteristics of the production line,the 0-1 integer programming and man-machine operation analysis method are used to optimize the production line.Through the analysis,the preliminary balance improvement plan of the production line is obtained.Finally,based on the improved data,an optimized simulation model of the workshop production line was established,and the effectiveness of the optimization scheme was verified through the data comparison before and after optimization.In this paper,a variety of optimization methods are applied in the optimization process of the production line to make the optimization scheme as optimal as possible.Aiming at the production line with multiple parallel stations and multiple processing components,the simulation model method is used to analyze the status quo,which makes the analysis process and results more intuitive.In the process of mathematical analysis,a double objective mathematical model with the objective function of maximizing the production balance rate and minimizing the smoothness index is established,which makes the optimization scheme more reasonable and provides the optimization scheme for the actual production.