加工中心机床必须具有高的定位精度以保证机床的加工精度。本文介绍了一种用来控制这种数控机床的磁尺测量模型参考复合控制系统,该系统不仅工作稳定可靠,而且调整方便。文中对用开环控制系统和复合控制系统时的定位精度进行了比较,并对比了用复合控制系统时的单点定位精度和任意点定位精度。 Machining center machine tools must have high positioning accuracy to ensure the machining accuracy. This paper presents a reference to a composite control system that is used to control the magnetic ruler measurement model of this CNC machine tool. The system is not only stable and reliable, but also easy to adjust. The paper compares the positioning accuracy when using open loop control system and compound control system, and compares the single point positioning accuracy and the arbitrary point positioning accuracy when using the compound control system.