目的 为拓展工业机器人的有效工作范围。方法 采用三菱Q系列PLC和定位模块QD75MH1搭建一套完善的工业机器人移动底座系统，用于机器人的位置调动，有效扩展工作范围。结果 选用四工位码垛装箱工作站为应用案例，系统工作稳定，工业机器人的工作范围由原来的2个工位扩展到4个工位，使用1台工业机器人即可完成4个工位的工作，包装效率提升了2倍。结论 该系统在多工位的码垛、装箱、搬运等场合具有很好的参考价值。

The work aims to expand the effective working scope of industrial robots. A set of complete movable chassis system for industrial robot was established with MITSUBISHI Q series PLC and location module QD75MH1 to mobilize the location of the robot and effectively expand the working scope. Taking four-station palletizing and packaging workstation as an example, the system worked stably, and the working scope of industrial robot was expanded to 4 stations from 2 stations. The work of 4 stations could be com-pleted by 1 industrial robot and the packaging efficiency was increased by 2 times. The system has a good reference value in multi-station palletizing, packaging, handling and other occasions.