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PFZ１５００加工中心工作台X轴负方向进给出现抖动现象，操作盘CRT监示器显示进给电流忽大忽小，并出现“１０１”报警：（１）X轴未达到指定位置；（２）X轴过载。经分析和测定为丝杠副磨损及托脚松动。滚珠丝杠副结构原理如图１所示。丝杠的丝母A、B由螺纹联接，当两丝母预紧
PFZ1500 machining center table jogs in the negative direction of the X-axis feed. The CRT monitor of the operation panel shows that the feed current suddenly increases suddenly and suddenly, and “101” alarm appears: (1) X axis does not reach the specified position; (2) X axis overload. After analysis and determination of lead screw wear and caretags loose. The principle of the structure of the ball screw as shown in Figure 1. Screw nut A, B by the threaded connection, when the two wire nut preload