滚刀法向齿形检测剖面与齿形误差

Normal Tooth Measuring Profile and Tooth Profile Error on the Hob

本文以普通花键滚刀为例,从理论上分析了滚刀法向齿形检测剖面。通过分析并进行计算得出:同一滚刀基本蜗杆,节圆柱上不同螺旋线的法剖面截形有明显差别;如果以齿纹中点法剖面作为齿形检测和设计剖面,用平面啮合法设计花键滚刀时,则齿形误差最小。

Taking a spline hob for example,this paper analyses the normal tooth measuring profile on hob in theory.By means of analysis and calculation,the conclusion is given a spiral normal section on the pitch cylinder of a hob basic worm is different from another;If the normal sec- tion in the center of the tooth line is taken as a tooth measuring and design section,when spline hob is designed in a plane meshing,the tooth profile error is minimum.