一、序言 阶梯轴采用强力无心磨削,可省去一道车削工序,缩短加工时间,大幅度地提高加工效率。但用无心磨削阶梯轴比单一圆柱轴,其精度(圆度、圆柱度)容易恶化,而且严重时工件会引起异常高速回转,甚至飞出加工区造成无法磨削。 有关无心磨削精度的研究,以前多是以单一圆柱体工件 First, the preamble stepped shaft with strong unmotivated grinding, eliminating the need for a turning process, shorten the processing time, greatly improve the processing efficiency. However, with unintentional grinding step shaft than a single cylinder axis, its accuracy (roundness, cylindrical) easily deteriorated, and severe workpiece can cause abnormal high-speed rotation, and even out of the processing zone can not be caused by grinding. Research on the accuracy of centerless grinding, mostly in the past with a single cylindrical workpiece