摘要
在数控激光切割加工中 ,由于作为刀具的激光焦点具有一定的半径 ,因而刀具中心轨迹并非零件实际轮廓 ,存在一个刀具半径补偿问题 为此提出了激光切割B样条曲线的一种刀具半径补偿方法 该方法利用常规等距曲线的数学模型及B样条曲线的端点性质 ,通过主动调整控制参数 ,获得精确的保形的等距曲线 其交点采用数值迭代求解 。
In computer numerical control(CNC) laser machining, because laser focus has radius,track of cutter is not practice contours of part,problem of cutter radius compensation is in existence. A method about B spline curves cutter radius compensation is presented.It makes use of traditional mathematical model and character of end point of B splines, regulates controlling parameter,so produces accurate B spline offse curves.The intersection point of B spline offset curves is solved by numerical iteration method
出处
《三峡大学学报（自然科学版）》
CAS
2001年第2期162-164,共3页
Journal of China Three Gorges University：Natural Sciences
关键词
B样条
刀具
半径补偿
数控程序
B spline
cutter radius compensation
computer numerical control(CNC)
