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齿轮端面是齿轮加工、检验和安装时的重要基准。或者说,齿轮端面基准是仅次于齿轮基准孔的第二基准。端面精度对于保证切齿工序精度至关重要。 目前汽车、拖拉机变速器所用圆柱齿轮的现有加工工艺采用:模锻→扩孔→拉孔→以内孔定位粗车齿坯外圆、端面→以内孔定位精车外圆和基准端面→滚(插)齿→齿端面倒角→剃齿→渗碳淬火→以齿轮节圆和齿圈基准端面定位修磨基准孔→以内孔定位进行珩齿(也有的厂不珩齿)。
Gear face is gear processing, inspection and installation of an important benchmark. In other words, the gear endface reference is the second reference next to the gear reference hole. End face accuracy is critical to ensure the accuracy of the cutting process. At present, the existing processing technology of the spur gear used in tractor transmission is as follows: swaging → reaming → pulling hole → locating the roughing blank with the inner hole Outer face, end face → inner hole Locating the outer periphery and the reference face of the fine car → rolling ) Tooth → Tooth face chamfering → Shaving → Carburizing and quenching → Grinding reference hole with gear pitch circle and ring gear reference end surface → Honing with internal hole positioning (some plants do not honing).