Through testing, if it is confirmed that the fault is not caused by the lead screw movement. It is necessary to consider whether there is a gap between the screw and nut pairs. In this case, the detection method is basically the same as the detection of screw movement. Use a dial indicator to measure the worktable connected to the nut, rotate the ball screw in the forward and reverse directions, detect the maximum gap between the screw and the nut, and then adjust.
The method is to adjust the thickness of the washer 4 to make the left and right nuts 1 and 2 produce axial displacement, thereby eliminating the gap between the ball screw nut pairs and generating pre-tightening force. Because the structure of the screw nut pair is different, the adjustment method is also different, and I will not list them here.
