本文介紹多段組合滚刀的结构、性能試驗和經济地选擇滚齿用量的經驗数据。这种滚刀的結构,主要由粗切刀段和精切刀段組成,各个刀段可以分別地进行铲齿,并依靠定位銷釘来保证装配后滚刀切削刃相互位置的准确性。滚刀相邻切屑槽做成相反方向的螺旋槽,使滚刀的左、右侧刃都具有正前角。試驗表明多段组合滚刀切削过程较平稳,可以加大滚齿的进给量,提高滚齿生产率。 This article describes the structure of multi-stage combination hob, performance tests and empirical selection of the amount of hobbing data. The structure of the hob is mainly composed of a rough cutter section and a fine cutter section. Each cutter section can be shoveled separately and rely on the positioning pins to ensure the accuracy of the rear cutter edge assembly. Adjacent hob chip cutter slot made of the opposite direction of the spiral groove, hob hob left and right edge has a positive rake angle. Experiments show that the multi-stage combination hob cutting process is relatively stable, you can increase the hob feed, improve hobbing productivity.