基于专家系统的制造单元构建研究

Design technology for manufacturing cells based on expert system

提出基于专家系统构建制造单元的方案。在零件存在多工艺路线、工序存在多可选设备的基础上,综合考虑加工成本,加工时间、加工顺序、设备能力、物流最小等实际生产约束条件,以最短加工时间、最佳设备及单元平衡、最少跨单元加工、最小成本等作为重构优化目标,采用四轮分配设备、单元负荷平衡计算、跨单元物流成本计算的处理技术,实现了制造单元的快速构建,导出了零件集合及设备集合,并通过实例验证了算法的有效性。

A solution consisting of expert system is presented for the rapid design of manufacturing cells.The methodology considered the practical aspects,such as operation time,operation sequence,pro-duction volume,machine capacity based on alternative process routing and multiple machine types avail-able for operation etc.With the aim of minimum machining time,optimization load balance and minimum number of inter-cell movements,an algorithm which includes four-time machine assignment、load balance evaluation、inter-cell movements cost evaluation is constructed.The part group and machine group is fi-nally derived.The application of a practical problem shows the efficiency of this approach.