工作機械用高速テーブル送り機構の研究

概要

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This paper deals with the study on a new high speed and high accuracy feed drive system for medium and large size machine tools. In order to realize feed rate of 20 m/min for cutting operation which is ten times as fast as conventional rate, a hydraulic actuator was combined with the conventional electric servo motor and ball screw, which means the independence of a function of accurate positioning by electric servo motor and ball screw system and that of acceleration and deceleration by hydraulic actuator system. After confirmation of the performance by theoretical analysis of the system a prototype model was built and tested. Contouring accuracy measurement system using a laser interferometer was also incorporated. Experimental results show that radius reduction amount of circular interpolation of radius 150 mm was 230μm at feed rate 20 m/min and 7μm at 5 m/min. The experimental results prove effectiveness of the proposed system.
公益社団法人精密工学会の論文
1991-03-05