摘  要：本文通过对数控车床的电气控制部分进行分析，了解了数控车床的工作原理。采用三菱FX3U PLC对数控机床CK9930的电气控制部分进行设计。本设计通过使用GX-Work2对PLC控制程序编程完成了数控车床相应动作的开发。并借助开发软件的运行、监控功能，完成对控制程序的调试。

关键词：PLC   数控车床   编程

Abstract: This article through to part of the electrical control system of CNC lathe were analyzed, and the understanding of the working principle of CNC lathe.The mitsubishi FX3U PLC to design the part of the electrical control system of nc machine tools CK9930.This desi