机械科学与技术2017，Vol.36Issue(3)：402-408,7.DOI:10.13433/j.cnki.1003-8728.2017.0313
五轴加工刀具轨迹NURBS插补技术的研究
Study on NURBS Interpolation Technology of Five-axis Machining Tool Path
摘要
Abstract
In order to solve the problem of linear and circular interpolation,the relevant principles of five-axis machining of NURBS interpolation computation was studied by using cubic spline Non-Uniform Rational B-Splines parameterization;tip point and tool axis vector parameterization were made based on the UG pre-output cutter location data points so as to calculate its control points by using inverse calculation achieved NURBS interpolation.Then It can insert with feed rate control interpolation error through the calculation of the interpolation points of the curvature derived relationship interpolation error and feed rate.By using CNC system of HEIDENHAIN iTNC530 and IMSpost,the postprocessor of NURBS interpolation function was conducted so as to achieve the output NC program.The impeller'NURBS interpolation was conducted via MATLAB so as to achieve processing requirements.关键词
NURBS插补/刀尖点/刀轴矢量/进给速度/插补误差Key words
NURBS interpolation/tip point/tool axis vector/feed rate/interpolation error分类
矿业与冶金引用本文复制引用
蔡安江,杜金健,宋仁杰,李林..五轴加工刀具轨迹NURBS插补技术的研究[J].机械科学与技术,2017,36(3):402-408,7.基金项目
国家自然科学基金面上项目(51475352)、陕西省科技计划项目(2014K07-06)及西安市科技计划项目CXY1439(3)资助 （51475352）
