本文介绍五轴数控(NC)机床中,生成刀具扫描仿型靠模的密闭形办法.在数控程序中定义的机床启动和工具运动,都被考虑为模拟真实机床工具的轨迹,包括线性传送和旋转运动.根据机床工具轨迹和刀具几何形状,决定了刀具的瞬时扫描靠模的动作.把过渡的扫描的靠模进行积分,刀具的扫描包络线就形成了,然后送至数控机床进行核实.所建议的方法提供了生成刀具扫描靠模的明确的办法,这一点是重要的,但现存的方法对于五轴的数控机床的审核尚不可能.电脑的执行程序表明,此处所研发的手段胜过传统的方法.
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