小模数齿轮广泛地应用于各种精密仪器仪表。目前各厂对小模数齿轮齿圈的加工,基本上采用滚削方法。但用滚削方法加工7级精度小模数齿轮时,必须对机床、刀具,毛坯及毛坯和刀具的安装精度有严格的控制,因而限制了生产率的提高。此外,部分工厂由于 Small modulus gear is widely used in a variety of precision instruments. At present, the factory on the small module gear ring gear processing, basically using the hobbing method. However, when the hobbing method is used to process a 7-level precision small-modulus gear, strict control over the installation accuracy of the machine tool, the blank, the blank and the cutter must be performed, thereby limiting the increase of the productivity. In addition, due to some factories