一、概述 齿向误差△Bx是量度齿轮齿面接触精度的重要指标之一。对斜齿轮和人字齿轮的齿向误差,实际上是用齿轮螺旋线的螺旋角误差△Bf来表示的。当机床发生故障、计算错误、操作不当(例如齿坯安装找正、刀具安装、挂轮等方面发生错误)时,加工出来的斜齿轮的螺旋角就达不到要求 First, an overview of gear error △ Bx is to measure the accuracy of one of the important indicators of gear tooth surface contact. The helical gear and the helical gear tooth direction error, in fact, is the spiral helical helical angle error △ Bf to represent. When the machine tool failure, calculation error, improper operation (such as tooth blank installation alignment, tool installation, hanging wheel and other aspects of the error occurred), the helical gear machined out of the helix angle does not meet the requirements