无心磨削尺寸的精度分析

Analysis for Size Precisionof Centerless Grinding

本文从理论和试验两个方面初步讨论了评价无心磨削尺寸精度的新方法。无心磨削尺寸精度取决于随机误差和变值系统误差的大小。而变值系统误差具有一定的规律性,不能用或然性理论来描述。因此,在评价无心磨削尺寸精度时,应首先用数学方法定量地将这两种误差区别开,然后再综合考虑它们对尺寸精度的影响。这就是本文提出的尺寸精度的综合评价方法。

A new method of evaluating size precision of centerless grinding is preliminarily discussed in theory and experiment.The size precision of centerless grinding depends on the random error and the variable error,and the latter can not be described by the aid of the probable theory because of its certain law.Therefore,first these two errors must quantitatively be separated off mathematically,then their influences on the size preci- sion be considered comprehensivly in evaluating size precision of centerless grinding.