目录数控机床故障维修诊断一、摘要.................................................................4二、数控机子床传动系统主要部件的介绍及维护............................41.1主轴的介绍......................................................41.1.1数控机床主传动系统大致可以分四类.........................41.1.2数控机床主传动系统的的要求..............................51.1.3全功能数控机床的主传动系统大多采用无级变速.............51.2主轴的结构......................................................51.2.1主轴轴承的配置............................................51.2.2主轴部件常用滚动轴承的类型...............................51.3主轴的工作原理..................................................61.3.1普通笼型异步电动机配齿轮变速箱...........................61.3.2普通笼型异步电动机配简易型变频器.........................61.3.3通笼型异步电动机配通用变频器.............................61.3.4专用变频电动机配通用变频器...............................61.3.5数控机床对主轴控制的要求.................................7三、数控机床主传动系统常见故障诊断与维修..............................73.1数控机床主传动系统常见故障诊断与维修的一般步骤..............73.1.1故障......................................................73.1.2故障测试与排除............................................83.2数控机床主传动系统常见故障诊断与维修.........................83.3常见故障实例分析................................................91）电机与变频器间的连线是否有搭壳短路现象.....................92）主轴驱动器控制板不良。......................................103）电动机连续过载。............................................104）电动机绕组存在局部短路。....................................101）主轴编码器与主轴驱动器之间的连接不良。...................102）主轴编码器故障。...........................................103）主轴驱动器与数控装置之间的位置反馈信号电缆连接不良。....IO4）主轴编码器方向设置错误。...................................10四、进给传动系统故障诊断...............................................104.1进给系统的结构.................................................104.2进给系统的工作原理............................................114.3进给驱动系统故障诊断..........................................114.3.1驱动系统..................................................114.3.2进给伺服系统的故障形式及诊断方法.......................114.3.3故障的维修方法..........................................124.3.4进给驱动的故障诊断....................................