Study on the Algorithm for Real-time Interpolation of NURBS Curve and Simulation

In order to meet the needs of high-speed and high- accuracy computerized numerical control machining and guarantee the smooth running in the interpolation processing, A NURBS curve algorithm based on adaptive acceleration and deceleration control of look-ahead s-shaped for the real-time interpolation is presented. The algorithm has merits such as higher position accuracy, short processing time, feed speed without variation and so on. Through dynamic path simulation and interpolation results analyses with MATLAB, the interpolation algorithm is proved to be correct and rational. Through actual machining by OPEN platform with VC++, the algorithm is proved to be real-time and practicable