有关资料认为,在滚齿机上滚齿时滚刀必须对中,即要求滚刀中间的一个刀齿或刀槽的对称线应通过齿坯中心,否则切出的齿形是不对称的,且影响传动的平稳性,尤其是齿数较少时更为明显。目前,仍有很多工厂也都进行滚刀对中的操作。通过理论分析并经多次实际滚切,即有意将滚刀不对中,经滚切的齿形用万能工具显微镜进行测量,证明齿形两侧是对称的,不论齿数多少结果都一样。滚齿时滚刀没有必要对中,滚齿机亦无需配备对刀装置。我厂省去对刀操作,齿轮质量也未曾下降。今以单头阿基米德滚刀加工标准圆柱正齿轮为例 Relevant information that hobbing hob hob hob must be centered, that is required hob in the middle of a knife or knife symmetry line should pass through the center of the blank, or cut out of the tooth shape is not symmetrical, and the impact Transmission stability, especially when the number of teeth is more obvious. Currently, there are still many factories are also hob-centered operation. Through theoretical analysis and actual rolling several times, that is intentionally hob misalignment, the hobby toothed shape with a universal tool microscope measurements show that both sides of the tooth shape is symmetrical, no matter how many teeth are the same result. Hob hob hob is not necessary right, hobbing machine also need to equip the knife device. I save the right knife operation, gear quality has not declined. Now single-head Archimedes hobbing standard cylindrical spur gear as an example