Performance Evaluation of Five-axisMachining Centers Based on Three-dimensional Circular Interpolation Motion Simulating Cone-frustum

Abstract

Amotion test of three-dimensional circular interpolation under simultaneous five-axis control will be conducted as one of the acceptance tests for five-axis machining centers. A number of errors are appeared in this measured trajectory by means of ball bar. Thus, the standardization of test conditions suitable to the five-axis machining centers with a tilting rotary table is being discussed. In this paper, the influence of the test conditions is investigated based of the measurements and simulation; the test conditions are the position of table side ball of the ball bar, the half apex angle, inclination angle and radius of the cone-frustum, and the feed speed at the measurement.