Aimed at problems such as profile error increasing and acceleration enlarging and tool machine working instability and quality decreasing of work piece surfaces in processing complicated curved surfaces because of several variable curvatures, an improved method of NURBS interpolation is adopt. According to self-adaptive programming principles, self-adaptive control of profile errors and accelerations and speed-converting is realized with increasing or descending self-adaptive control strategy. This method meets real-time and high-precision requirements of high speed and precision processing, and solves various problems caused by several variable curvatures of a complicated surface.
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