一、前言随着机械工业的发展,对齿轮精度的要求愈来愈高,从而对滚刀前刃面的各项精度要求也相应提高。目前各种大螺旋角、小导程滚刀日益增多,而在用锥面砂轮刃磨这种滚刀时,砂轮与滚刀前刃面的干涉量(也称中凸量)很大,往往远远超出滚刀前刃面非径向性精度所 I. Introduction With the development of the machinery industry, the requirements on the accuracy of the gears are getting higher and higher, and the requirements on the precision of the hob before the blade are also correspondingly raised. At present, all kinds of large helix angle and small lead hobs are increasing day by day. However, when the hob is sharpened with a conical surface grinding wheel, the amount of interference (also referred to as convexity) Far beyond the front edge of the hob non-radial precision