基于STEP-NC的NURBS曲面插补技术的研究  

Interpolation for non-uniform rational B-spline surface based on STEP-NC

作　　者：李霞 梁宏斌[2] 邱长华 

机构地区：[1]哈尔滨工程大学机电工程学院,黑龙江哈尔滨150001 [2]辽宁科技大学机械工程与自动化学院,辽宁鞍山114044

出　　处：《计算机集成制造系统》2008年第6期1136-1141,共6页Computer Integrated Manufacturing Systems

基　　金：国家自然科学基金资助项目(50675002);哈尔滨市科技创新人才基金资助项目(2006RFQXG021);辽宁省教育厅资助项目(20060426)。~~

摘　　要：为提高曲面的加工效率和精度,提出了一种基于STEP-NC的非均匀有理B样条曲面加工方法。基于STEP-NC的数控系统能够直接处理包括完整的非均匀有理B样条曲面几何信息和加工工艺信息的STEP-NC程序。详细讨论了非均匀有理B样条曲面插补算法的实现,并通过仿真试验,验证了该方法的有效性。To improve machining efficiency and accuracy for free-form surface, a method of machining Non-Uniform Rational B-Spline （NURBS） surface based on STEP-NC was put forward. By using this method, Computer Numeri- cal Control （CNC） could deal with NC program which consisted of NURBS surface geometry data and machining technology data in the form of STEP-NC. Interpolation algorithm for NURBS surface was developed. Finally, simulation experiments were provided to verify the effectiveness of the proposed method.

关 键 词：数控 插补算法 非均匀有理B样条曲面 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]