目录引言························································································4第一章概述·················································································51.1数控系统的简介····················································································51.1.1数控系统发展简史及趋势······································································51.1.2数控（NC）阶段·················································································51.2.3计算机数控（CNC）阶段······································································51.2PLC简介····························································································61.2.1PLC定义···························································································61.2.2PLC的结构与组成···············································································61.2.3PLC的工作原理··················································································61.3PLC和NC的关系··················································································6第二章CK6163数控机床的整体设计·················································72.1CK6163的总体结构介绍·········································································72.2数控机床的整体设计··············································································7第三章数控系统选用······································································83.1开环步进伺服系统：··············································································83.2闭环数控系统：····················································································83.3半闭环数控系统：·················································································9第四章数控机床强电控制····························································104.1主轴电...
