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为克服工程机械产品装配线节拍人工分析方法不足的问题,以某挖掘机制造企业现有装配线为例,提出一种基于时间颜色Petri网的挖掘机装配线节拍分析的仿真模型。应用TCPN建模方法构建了装配线上单一装配工位的模型单元,根据挖掘机装配流程图构建整条装配线的模型,定义模型中颜色集、变量、变迁和库所等关键要素,给出变迁和弧上使用的函数与表达式。使用CPN Tools对所建模型进行仿真,并对模型中各工位装配性能进行分析,提出装配线平衡的改善建议。
In order to overcome the shortcomings of the artificial analysis method of the beat of the construction machinery product assembly line, taking an existing assembly line of an excavator manufacturing enterprise as an example, a simulation model of the beat analysis of the excavator assembly line based on time color Petri nets is proposed. The model unit of a single assembly station on the assembly line was constructed by using TCPN modeling method. The whole assembly line model was built according to the excavator assembly flow chart. The key elements such as color set, variables, transitions and places in the model were defined. Functions and expressions used on arcs. Use CPN Tools to simulate the model, and analyze the assembly performance of each station in the model, and put forward the improvement suggestions of assembly line balance.