数控机床变频主轴系统的电气故障排查与对策

摘要

经济型数控机床的主轴驱动系统多采用变频主轴系统。以华中数控HNC-21TF数控车床为例，在分析其变频主轴系统的电气控制原理的基础上，介绍了对其常见电气故障进行逐级排查的方法，并提出了相应的处理对策。%The spindle drive system of economic CNC machine tool tends to adopt transducer spindle drive system. Taking HNC-21TF CNC lathe for example,based on the analysis of electrical principle of its transducer spindle drive system,this article debugs the common electrical faults of transducer spindle system one by one,and gives the effective countermeasures.