齿轮加工道理，常见的有两种，仿形加工和范成加工。

1、仿形加步骤：齿轮加工刀具切出齿轮的齿槽，刀具的“截面状态”是齿轮齿槽的状态。大连精密零部件加工齿轮时，没有齿轮啮合活动，加工出来的齿轮精度低，通常精度在11级以下；

2、范成加工步骤：齿轮加工刀具自身就是“齿轮或齿条”，齿轮滚刀能够“以为”是齿条，属于齿条类型刀具。加工时，齿轮刀具与被加工齿轮之间佑装齿轮啮合”活动。齿轮刀具齿廓刀刃，活动包络出被加工齿轮的齿廓、齿面，是梦想的渐开线，加工精度较高，常见的有，滚齿、插齿、剃齿属于精加工。

There are two common principles of gear machining: profile machining and profile machining.

1. Imitation method: The gear machining tool cuts out the tooth groove of the gear, and the "cross-sectional shape" of the tool is the shape of the gear tooth groove. When processing gears with precision components in Dalian, there is no gear meshing motion, resulting in low precision of the processed gears, generally below level 11;

2. Fan Cheng's machining method: The gear machining tool itself is a "gear or rack", and the gear rolling cutter can be "regarded" as a rack, belonging to the rack type tool. During processing, there is a "gear meshing" motion between the gear cutting tool and the processed gear. Gear cutting tools have tooth profiles and cutting edges that envelop the tooth profile and tooth surface of the processed gear. They are ideal involutes with high machining accuracy, commonly used in precision machining such as gear hobbing, gear hobbing, and gear shaving.