The steel ball is placed in the center hole above one end of the ball screw to see its axial movement. At the same time, use a dial indicator to detect the movement of the machine tool table. The front and back sides of the ball screw are to be tested. The testing method is the same, but each time you test, you must record the value on the dial indicator, and then make a comparison, so that you can roughly confirm the ball screw The position where the rod failure appeared.
So, how to detect when the lubricity of the bearing and ball screw nut pair is reduced? For experienced masters, the sound of the machine tool during work can distinguish the lubrication condition. If the lubrication condition is poor, the machine tool will vibrate greatly. This situation generally occurs on old machine tools that have been used for a long time, and this problem will not occur for newly purchased machine tools.
