球头铣刀在虚轴机床上的刃磨

Grinding of Ballend Cutter on Virtual Axis Machine Tool

对虚轴刃磨机床的工作原理进行了分析 .建立球头铣刀刀刃的曲线方程 ,利用活动标架法 ,推导球头铣刀前后刀面的数学模型 .根据球头铣刀的数学模型 ,求解球头铣刀的广义刀位轨迹 ,利用虚轴机床的反解模型 ,把广义的刀位轨迹换算成连杆坐标系下连杆的长度 ,控制连杆长度的变化 ,完成刃磨加工运动 .进而论证了利用虚轴机床进行刀具加工的优势 .

Working principle of a virtual axis machine tool was analyzed. Curve equation of ballend cutter blade was established. Using moving frame methods, a mathematical model of rake face and flank face was inferred. According to the mathematical model of ballend cutter tool and inverse solution model of the virtual axis machine tool, generalized cutter location contrail of the rotating cutter tool was deduced, and converted into the length of the pole under pole coordinates. Cutting action can be conducted through controlling the length of pole, and dissertate the advantages of virtual axis machine tool in cutting tool's machining.