Experimental Study on Precision Grinding of a Ball Screw Raceway

Abstract

Aiming at the current problem of low grinding efficiency of domestic ball screw grinding, a new type of ball screw grinding device is proposed. On this basis, a four-factor three-level quadrature test is designed for the four main process parameters of grinding torque, grinding speed, grinding time and abrasive particle size in the grinding process of the lead screw; a set of optimal process parameters is obtained by taking the surface roughness of the lead screw as the detection index. Then the friction torque measurement test is carried out on the ball screw before and after grinding. The effect of grinding on friction torque performance of the ball screw is explored.

Keywords

• Ball screw pair;Grinding;Friction torque;Surface quality