基于Lingo对Y公司XK产品的线平衡研究

Research on Line Balance of XK Products of Y Company Based on Lingo

摘要: Y公司成品厂117号线存在人员等待浪费、动作浪费等问题，故以产品工艺流程为切入点，绘制工艺流程图，运用连续测时法测得各工序时间，与节拍时间相比较寻找瓶颈工序并计算线平衡率为67.90%，因此得出产线不平衡是产线存在人员等待浪费和动作浪费的主要原因。运用Lingo软件进行产线平衡问题的求解，依据所求最优节拍时间8.47 s对装配线进行工序流程再造，并据此改进作业空间布局，规范工装夹具和物料摆放，改善后线平衡率为79.79%，线平衡率较改善前提高11.89%；117线的装配工人由原来的11人减少为9人；运用动素分析法比较改善前后的加工动作，左手无用动素比率减少了2%，右手无用动素比率减少了12%。因此，平衡产线在解决人员等待浪费和动作浪费等方面具有实际意义。

Abstract: There have many wastes in 117 line of Y company factory, such as waiting wastes, action wastes and so on. Taking product process as the breakthrough point, drawing the process flow diagram, using continuous measurement method to measure the process time, comparing with the task time look-ing for the bottleneck process and calculating the line balance rate that was 67.90%, it is found that the imbalance line was the main reason for wastes. Lingo software was used to solve the line balance. According to the optimal time of 8.47 s, the assembly line process flow was reconstructed, the work space layout was improved and the arrangement of fixtures and materials was standardized. The number of assembly workers on line 117 has been reduced from 11 to 9. By using actin-analysis method, the ratio of left and right actin reduced by 2% and 12% respectively. Therefore, balancing production line has practical significance in solving the waste of personnel waiting and action.