五坐标数控铣床主轴套筒伸缩的处理

The processing on the shift of the spindle sleeve in a 5-axes numerical machine

以１台可伸缩铣头５坐标机床技术改造为实例，采用ＰＬＣ实现主轴套筒的移动，解决５坐标加工中遇到的“转动中心距”问题。通过输入输出接口分析，提出主轴套筒移动控制的详细设计，总结出在机床控制中主轴套筒移动控制的一般原理与方法。

This paper applies the remanufacture for a 5-axes Numerical Control Machine as an actual example, which carries out the motion of the spindle sleeve by PLC. By means of analyzing the statuses of input & output and the interface of data block. It presents the detail design of the spindle sleeve moving, and sums up a. general principle and method for the control of machine.