Optimized Design of Man-machine Based on DELMIA and MTM for Die-lip Precision Turning

A comprehensive set of correction methods is proposed for the unreasonable human-machine operation problems in the manufacturing process of die-lip finishing turning. Firstly, video analysis and action decomposition of the current situation of the operation procedure of die-lip finishing turning are conducted, and it is found that the operation process is unreasonable and the action posture is not standardized; secondly, the action is evaluated by simulation analysis based on RULA and NIOSH analysis method in DELMIA, and it is found that the labor load of workers is high and the comfort is low, and there is a risk of damage; finally, the ergonomics and MTMUAS methods are used to optimize the die-lip finishing turning. Finally, the ergonomics and MTM-UAS methods were used to optimize the operation process and formulate standard working hours, and the perfected action was evaluated by simulation again. Comparing the before and after analysis and evaluation results, we obtain that the utilization rate of workers increased from 43.8 to 49.9%, and the utilization rate of machines and equipment increased from 54.7 to 62.3%. The result shows a significant improvement in human-machine efficiency and a significant reduction in the intensity of work and risk of physical damage caused by the improper posture of workers.