Device and method for accurately controlling limiting position of limiting nut in lead screw transmission

The invention relates to a device and method for accurately controlling the limiting position of a limiting nut in lead screw transmission. The device comprises a lead screw, the limiting nut, a position sensor, a workpiece and an angle measuring tool. The angle measuring tool is fixed to the lead screw and can rotate along with the lead screw and measure the rotating angle of the lead screw. The limiting nut is in threaded fit with the lead screw, and the position sensors are installed at the two limiting positions of the workpiece. The limiting nut and the lead screw are arranged in the through hole of the workpiece; the limiting nut can move up and down relative to the workpiece. According to the technical scheme, the pointer and the dial or the connecting sleeve and the angle sensor are adopted, the problem that the limiting position of the limiting nut is difficult to accurately control is solved, and effective control over the assembling quality is guaranteed. The method is convenient and fast to operat