2008•Journal of Sichuan UniversityRequires access

A Real-time Compensation Method for the Geometric and Thermal Error on CNC Turning Machine

Yang Jian-guo

Abstract

Compensation for the geometric and thermal error is the most effective methods to improve the machining precision.These errors were classified and the normal modeling methods were given.A real-time error compensation controller was developed based on the CNC shift function of external coordinate system.The technology was implemented on CY-K360 CNC turning center and the position error of X axial and the Radial thermal error of the spindle were compensated.The result proved the new method's availability in accuracy improving.

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Key concepts: Compensation (psychology), Numerical control, Position (finance), Machining, Position error, Control theory (sociology), Machine tool, Thermal