瓶颈工序影响下汽车电子生产车间排程研究

针对汽车电子生产车间作业排产面临的在制品(Work In Process,WIP)堆积、生产周期长和订单准时交付率低等问题,梳理汽车电子零/部件生产车间排程逻辑,依托于约束理论(Theory Of Constraint,TOC)和“鼓-缓冲-绳子”(Drum-Buffer-Rope,DBR)方法,识别瓶颈工序,以完工期限最早优先(Earliest Due Date,EDD)和提高产出率为原则,引入交付紧迫系数,建立了瓶颈工序影响下的订单优先排产计划模型。以某汽车电子零/部件企业的印刷线路板(PCBA)生产车间实际生产数据为例,结合订单优先排产计划模型对PCBA订单进行作业时间排程,验证了该模型的有效性,为汽车电子生产车间排程提供了一种新的可行方案。

Research on scheduling for automotive electronics workshop under the effect of bottleneck process

Aiming at the problems of WIP’s accumulating,prolonging production cycle and low order delivery rate in the workshop operation of automotive electronics enterprises,relying on constraint theory and DBR method,bottleneck processes were identified.Based on the principle of earliest completion date first Earliest Due Date(EDD)and improvement of output rate,delivery urgent coefficientwas introduced to establish the order priority scheduling model under the influence of bottleneck processes.Based on the actual production data of PCBA workshop of an automotive electronic parts company,the scheduling of PCBA orders is carried out by combining with the scheduling planning model,which verifies the effectiveness of the model and provides a new feasible scheme for the workshop scheduling of automobile electronic parts enterprise.