机床导轨是决定机床精度和运动稳定性的关键部位,机床导轨的磨损直接影响到机床的精度和性能,影响加工产品的质量。例如,车床由于磨损,变形和修理引起床鞍下沉,使原有的装配尺寸链精度发生了改变,造成三杆(丝杆、光杆、变向杆)装配位置发生变更,使手轮转动沉重,不仅加速三杆和后托架等零件的磨损,而且严重影响加工零件的精度(锥 The guide of the machine tool is the key part that determines the precision and stability of the machine tool. The wear of the guide of the machine tool directly affects the precision and performance of the machine tool and affects the quality of the processed products. For example, the lathe sinking due to wear, deformation and repair saddles the accuracy of the original assembly dimension chain, resulting in a change in the assembly position of the three rods (screw rod, polished rod, steering rod), causing the handwheel to turn heavy , Not only speeding up the wear of the parts such as the three-pole and the rear bracket, but also seriously affecting the precision of the machined parts