STEP-NC数控系统的NURBS曲面插补方法

Interpolation Method of NURBS Curved Surface for STEP-NC Control System

针对发展新一代STEP-NC数控系统的需求,对适合这类新型数控系统的NURBS曲面插补控制方法进行了研究,给出了该方法涉及的曲面信息处理、加工路径规划和实时轨迹插补算法。插补实例表明,所提出的方法可行,具有较高的精度和良好的实时性,可以满足高性能STEP-NC数控系统的要求。

According to the requirement in developing new generation of STEP - NC control system, the interpolation control method of NURBS curved surface for this new kind of numerical control system was researched. The algorithms for surface information processing, machining path planning and real time locus interpolation involved in this method have been worked out from the research results. Application shows that this method is feasible, has a high accuracy and good real time property, and should meet the need of high performance STEP - NC control system.