标准滚刀滚切变位直齿轮的刀架角计算

The Calculation of Tool Post Angle for the Standard Hob Cutting the Spur Gear with Addendum Modification

针对变位直齿轮滚切加工中的刀架角调整问题,建立了齿轮滚刀滚切变位直齿轮的模型,用Matlab编程计算了刀架角对工件齿轮齿形及分度圆齿厚的影响。计算结果表明,刀架角对工件齿轮齿形的影响很小,但对工件齿轮分度圆齿厚的影响很大。同时,用本文中的方法可求得理想的刀架角,使变位直齿轮的加工误差为最小。

Aiming at the adjustment of tool post angle in the process of spur gear hobbing,the model of the hob rolling spur gear with addendum modification is established,and the influence of the angle on the tooth profile and tooth thickness is calculated by using Matlab programming.The results show that the angle on the impact of the tooth profile is small,but significant on the tooth thickness.At the same time,the ideal tool post angle can be obtained by this method,so that the machining error of the spur gear with addendum modification can be minimum.