Abstract
This paper proposes the improvement method of angular positioning of tilting rotary table in 5-axis control machining center. Angle deviation of the tilting rotary table caused by moment load of workpiece fixed on the tilting rotary table is a major disturbance to machining accuracy in 5-axis control machining center. However, factors related to this problem have not been clarified. Therefore in this paper, angle deviation and drive torque are measured under tilting rotary table added moment load. From a experimental results, experimental model as a function of angle deviation, moment load and drive torque is obtained, and angle deviation is estimated by using proposed model accurately.
