前言锥齿轮的齿形在整个齿长断面上是变化的,因而在不同位置及不同方向的断面上,其齿形是不一样的。而齿廓座标值的计算及标准齿形放大曲线的绘制,是锥齿轮加工及检测的主要依据。为加工出比较标准的齿轮,使之得到满意的啮合效果,不仅需要检查大端的齿形及尺寸,还需要检查小端的甚至中部或延长部的齿形及尺寸;不仅要绘制法面的齿廓图,还要绘 Preface Bevel gear tooth profile across the tooth length section is changing, so in different positions and different directions of the cross-section, the tooth shape is not the same. The calculation of the tooth profile coordinate value and the drawing of the standard tooth profile magnification curve are the main basis for processing and testing the bevel gear. In order to produce a relatively standard gear so that a satisfactory meshing effect is obtained, it is necessary not only to check the tooth profile and size of the large end but also to check the tooth profile and the size of the small end even in the middle or the extension; not only the tooth profile of the face Figure, but also painted