The ball screw is often subjected to bending, torsion, fatigue, and impact when working, and at the same time bears friction at the sliding and rotating parts. The main forms of damage to the ball screw are wear and fatigue. Therefore, the performance requirement is that the whole must have good comprehensive mechanical properties (that is, a certain strength and toughness coordination) and high dimensional stability, and the relevant working parts (raceway, shaft diameter) must have high hardness, high strength and sufficient The abrasion resistance.
The ball screw is an important part of the transmission mechanism. The workpiece is characterized by high processing accuracy and strict deformation requirements. Due to the many processing procedures, the quality and deformation of heat treatment are critical. It was found in production that the workpiece was severely deformed after carburizing and quenching, and it was difficult to correct it. Large deformation also appeared in the processing after heat treatment, which caused a large number of product repairs and many workpieces to be scrapped. Therefore, the materials, heat treatment methods and processing techniques of the transmission parts should be selected reasonably, and appropriate lubrication methods and protective measures should be adopted to ensure the quality of the ball screw.
