Machining error rapid detection and compensation method based on NURBS curved surface
A compensation method and processing error technology, applied in the direction of comprehensive factory control, instrumentation, computer control, etc., can solve the problems of low measurement efficiency, inability to measure curved surface processing errors, low efficiency of curved surface measurement, etc., and achieve broad application prospects, The effect of improving applicability
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[0027] The present invention will be further described below in conjunction with accompanying drawings and examples.
[0028] Such as figure 1 As shown, it is a fast detection and compensation method for machining errors based on NURBS curved surface of the present invention, which includes the following steps:
[0029] 1) Analyze the node vector UV and control point C information of the designed NURBS surface, and select a series of feature points on the designed NURBS surface as the sequence P to be measured;
[0030] The sequence P to be tested includes the points on the surface corresponding to the node vector UV at the node and the basic feature points on the surface. The basic feature points are the extreme points of the surface and the maximum and minimum points of curvature;
[0031] 2) Process the surface with a computer-aided machine tool according to the node vector UV and control point C of the designed NURBS surface, and then use the measuring head to measure the...
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