本文介绍了活塞式发动机凸轮轴磨床的数控系统的研制。系统采用了计算机两级控制方式,上位微机 CPU 8088+8087实现对凸轮型线数学模型的计算处理以及数据的变换,并且对各自含有下位微机 MCS-51单片微处理机的饲服电机控制系统和步进电机控劁系统进行控制,无需靠模而直接磨削出凸轮轴,实现凸轮轴的柔性加工。还介绍了本系统配接摇臂式凸轮轴磨床磨削凸轮的基本原理。 This paper introduces the development of CNC system of piston engine camshaft grinder. The system uses two levels of computer control, the host computer CPU 8088 + 8087 to achieve the calculation of the cam line mathematical model processing and data conversion, and each with the next microcomputer MCS-51 single-chip microcomputer servo motor control system And stepper motor control system for control, without having to rely directly on the cam and grinding out the camshaft, camshaft to achieve flexible processing. Also introduced the system coupled with rocker arm camshaft grinding machine grinding cam basic principle.