Machining method of half mold

The invention discloses a machining method of a half mold. According to the main scheme of the method, the mold is put into an eccentric sleeve fixture, and the coaxiality of the two ends of cavities the mold is ensured through the high-accuracy positioning characteristic of the eccentric sleeve fixture. According to the machining method, the design is simple, the procedure is scientific, the two ends of the cavities are aligned and machined one by one through an eccentric sleeve, the coaxiality of the two ends of cavities is ensured, the requirement for the positioning accuracy of a machine tool is lowered, machining is completed through a common numerical control machine tool, the loss and cost of a knife are reduced, and meanwhile mold machining can be more convenient and faster. 本发明公开种哈夫模具的加工方法，本方法的核心思想为将模具放置在偏心套夹具中，利用偏心套夹具的高精度定位特性保证模具两端型腔的同轴度。本加工方法设计简单，流程科学，利用偏心套逐找正加工两端型腔，保证型腔两端的同轴度，降低了对机床定位精度的要求，利用普通数控车床完成，减少了刀具的损耗和费用，同时使得模具加工更加方便快捷。