工作物把持系における動特性評価法の検討 : ER流体を用いた工作物把持系の減衰効果

概要

論文の詳細を見る
In a manufacturing system, the dynamic characteristics of machine tools exert a profound influence on the machining accuracy of components. In particular, the performance of the interface between machine tool and workpiece has significant effects on the machining accuracy and efficiency. Nevertheless, the importance of these interface devices, remains unknown since there has been insufficient research on these devices. In this study, in order to improve the characteristics of a chucking system, we clarify and evaluate its damping mechanism. In particular, the relationship between machining accuracy and the dynamic characteristics of a chucking system in a machine tool is investigated with a damper of elector rheological (ER) fluid. The results are as follows. (1) The damping characteristics of the ER damper in a chucking system of a machine tool can be controlled and improved without influencing stiffness. (2) The damping characteristics are proportional to the yield stress of the ER effect. (3) It is necessary to investigate not only the numerical value but also the fluctuating rate of dynamic characteristics in order to evaluate the dynamic performance. (4) An accurate evaluation method is proposed for damping characteristics.
一般社団法人日本機械学会の論文
1996-12-25