高扰动模具制造车间的负荷均衡生产控制方法

A Production Control Method of High Disturbance Mould Manufacturing Workshop Based on Workload Control

试制性模具生产中,路径与工时各异的零件先机加工再装配,关联零件进度不一致将影响装配开工,而返工返修等高频事故干扰着进度协同。实时决策的调度规则更能及时协同进度,但分散的规则难以在负荷波动且不均衡的车间协同众多零件,将引入投放控制来均衡各任务队列,降低规则协同进度的难度。构建一类耦合投放控制、设备选择与作业分派的多层递阶方法,实验说明其优良性能和各控制层级中面向进度协同与准备时间节省两类规则的关联性。

In trial-manufacture mould production, parts with different routings and processing time are machined first and then assembled. The inconsistent progress of related parts will affect assembly start-up, while high-frequency accidents such as rework and repair interfere with progress coordination. Real-time decision-making dispatching rules can coordinate production progress timely, but decentralized rules are difficult to coordinate many parts in workshops with fluctuating and unbalanced workload. Workload control method will be introduced to balance the task queues and improve the coordination efficiency of rules. A multi-level hierarchical method with coupling release control, machine selection and dispatching rules is constructed. The excellent performance of the proposed method and the inherent relationship between collaborationoriented and setup-saving priority rules in different control levels are studied by simulation experiments.