제어로봇시스템학회:학술대회논문집
- 1993.10a
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- Pages.830-835
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- 1993
Circular interpolation error reduction of a CNC machining center by iterative learning
반복학습에 의한 CNC 머시닝 센터의 원호 보간 오차 보정
Abstract
The errors in machining process by CNC machining center are due to many elements, such as the delay of the servo drivers, friction and the gain mismatch between x-axis and y-axis motors and so on. We made a counter circuit to measure the output of motor encoders for the motion error analysis of a CNC machining center, and have measured the errors experimentally when the CNC performs a circular interpolation. We have also used an iterative learning method to reduce the radius errors and stick motion errors generated by the CNC machining center performing a circular interpolation. The proposed learning scheme worked well and the circle obtained has smaller error.
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