直角铣头在五轴加工中的刀尖点补偿技术

摘要

针对直角铣头在五轴数控加工中刀尖点位置线性补偿的技术难题,通过对直角铣头的安装方式及刀尖点补偿算法等研究,采用了刀具参考点偏置补偿法、控制器双向刀长补偿法,解决了直角铣头在不同机床结构、不同数控系统的加工中心上,对内部空间狭小的复杂结构进行加工时易出现主轴干涉和运动轴超程的共性瓶颈问题,大幅度提升了加工中心的加工范围与适应性.目前,直角铣头已在多个航天器型号的复杂结构研制中得到成功应用.%To solve the technical problems of tool-nose point compensation technology of ring-angle milling head for 5-axis machining,the methods of tool-nose reference point offsetting compensation and the controller of bidirectional tool length compensation are used according to studying ring-angle milling head fixing and tool-nose point compensation.The tool-nose point compensation technology has been made a breakthrough in ring-angle milling head using in different machine configurations and controllers to solve the interference of principal axis and the axis motion exceeding problems,advanced highly the machining range and flexibility of numerical control machining center for more space models.