在滚齿机床上,采用渐开线滚刀范成滚切加工齿数较少、模数较大的齿轮时,常常会发生轮齿两侧齿形不对称或齿面出棱现象。有人认为,这种现象是由于滚刀不“对中”造成的,有时滚刀经过对中调整后,滚切卤形确实变好了,但有时滚刀经过仔细对中,齿形反而变坏了。正是滚刀对中后滚切齿形时好时坏现象,令人琢磨不定,使人们对滚刀“对中”调整的必要性产生了争议。是何种因素造成滚刀“对中”后,滚切尚形时好时坏现象呢?要从理论上确切 In the gear hobbing machine, involute hob Fan into hobbing less number of teeth, larger modulus gear, often occur on both sides of the gear tooth asymmetry or tooth edge phenomenon. Some people think that this phenomenon is due to the hob does not “centering” caused, and sometimes after the hob after adjusting the hobbing Halogen really get better, but sometimes hob carefully after the tooth profile but worse It’s It is the hobbing of hob hob shape, good and bad, hobbled, so that people on the hob “alignment” the necessity of controversy. What kind of factors cause the hob “alignment”, hobbled form good and bad phenomenon? To theoretically exact