Research on universal fixture for universal machining of three-axis CNC milling machine
三轴数控铣床万向加工辅助通用夹具的研究

摘要

目前，大部分制造业企业都没有五轴加工设备，因购买一台五轴加工中心至少200万以上，是企业无法支付的成本；而三轴数控铣床的普及率非常高，物美价廉、收益可观，能为企业带来稳定的收益。当三轴数控铣床无法结合通用夹具对零件进行加工时，需设计制造铣床专用夹具，专用夹具可获得较高的生成效率和加工精度，但设计制造周期长，没有通用性，在小批量零件加工中没有优势。

Abstract

At present, most manufacturing enterprises do not have five-axis machining equipment, because the cost of buying a five-axis machining center is more than 2 million yuan, which is impossible for enterprises to pay. And the penetration rate of three axis CNC milling machine is very high, inexpensive, considerable earnings, can bring stable earnings for enterprises. When the three-axis CNC milling machine cannot be combined with the general fixture for parts processing, it is necessary to design and manufacture special fixture for milling machine. Special fixture can obtain higher generation efficiency and processing accuracy, but the design and manufacturing cycle is long, there is no universality, and there is no advantage in small batch parts processing.