Compensation realizing method for linear axis positioning error in numerical control system
A positioning error and numerical control system technology, applied in the direction of digital control, electrical program control, etc., can solve the problems of poor accuracy, poor reliability, unfavorable integration of numerical control system function modules, etc., to achieve the effect of improving positioning accuracy and meeting high-precision machining
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[0022] The present invention will be further described below in conjunction with the drawings.
[0023] Such as figure 1 As shown, the method for realizing linear axis positioning error compensation in the numerical control system of the present invention includes the following steps:
[0024] Establish the positioning error compensation model of the linear axis in the CNC system;
[0025] Calculate the positioning error compensation value through the linear axis positioning error compensation model;
[0026] Correct the linear axis motion control command data according to the linear axis positioning error compensation value to realize linear axis positioning error compensation.
[0027] Such as figure 2 As shown, the establishment process of the linear axis positioning error compensation model is as follows:
[0028] According to the pitch error of the CNC machine tool at different temperatures, the pitch error fitting vector and the comprehensive temperature coefficient fitting vector...
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