くさび式パワーチャックの把握特性 : 把握特性に及ぼす把握条件の影響

概要

論文の詳細を見る
In this paper, an investigation of gripping characteristics of a wedge-type power chuck with three top jaws is reported. Bending tests and impulse tests of works with different diameters were performed for several gripping forces and gripping lengths in which the bending stiffness, logarithmic decrement and dynamic compliance of the chuck-work system were measured. The investigation showed that the bending stiffness varies with the direction of the bending load acting a jaw. The bending stiffness tends to decrease with the gripping force because of the increase of the clearance between the top of a jaw and a work. The greater the gripping force or the smaller the work diameter in comparison with the gripping length, the lower the damping efficiency of the system and the greater the dynamic compliance. Therefore, small values of the gripping force should be chosen for the works used in the experiment.
一般社団法人日本機械学会の論文
1991-07-25