中国机械工程2012，Vol.23Issue(21)：2546-2551,6.DOI:10.3969/j.issn.1004-132X.2012.21.006
叶轮流道非正交四轴加工的刀轴控制方法
Tool Axis Control Method for Impeller Tunnel Milling Using Non-orthogonal 4-axis Machine
摘要
Abstract
For milling of free -form impeller channel using nonorthogonal 4 -axis machine,a tool axis control method was proposed, which interpolated tool axis by rotating it through a revolution axis in a constraint surface. Through analyses of the tool axis constraint conditions,a unit cone which met the constraint conditions was established in work coordinate system. An algorithm was presented to calculate initial tool axis of the clean-up machining,then the interference - free tool axis of every contact point was generated in a clean-up tool path. Sequentially the surface area on the unit cone was calculated, which determined by the corresponding clear-up tool axis,and interpolated clean-up tool axis by rotating it in a same angle on this area to get the tool axis of the impeller channel milling, fi-nally a machine kinematics constraints was established to smooth it. Examples show that the method can calculate the smooth and interference-free tool axis of the impeller channel accurately and efficiently when it is machined by using non-orthogonal 4 -axis machine.关键词
叶轮流道/非正交四轴加工/旋转插值/刀轴控制Key words
impeller channel/non-orthogonal 4 -axis machining/ rotating interpolation/ tool axis control分类
信息技术与安全科学引用本文复制引用
吴宝海,韩飞燕,杨建华,秦涛..叶轮流道非正交四轴加工的刀轴控制方法[J].中国机械工程,2012,23(21):2546-2551,6.基金项目
国家科技重大专项(2011X04016-032) （2011X04016-032）
高等学校博士学科点专项科研基金资助项目(20106102120023) （20106102120023）
凝固技术国家重点实验室开放课题资助项目(SKLSP201122) （SKLSP201122）
