数控机床不能返回参考点故障维修三例

Three Cases of CNC Machine Tool Can Not Return to Reference Point Fault Maintenance

数控机床不能返回参考点故障发生后,根据数控机床设计不同、参考点部位不同等原因,具体维修方法也有所不同。以实例论述三种情况下的维修方法,即:利用复归开关操作恢复绝对值参考点、用机械测量手段定位参考点再设置、加工中心自动换刀机械手原点和刀库原点恢复。

When the CNC machine tool can not return to the reference point,because of the CNC machine tool design and parts of reference points are different,the maintenance methods must be different.This paper discusses three cases of maintenance methods,including the use of return switch operation recovery of absolute value encoder reference point,through mechanical measuring means to locate reference point and then set it,recovery of the origin of Machining center ATC arm and the tool magazine.