チャック加工における工作物把持力の検討 : 第2報, パワーチャックの把持特性

抄録

In this paper, the chucking behaviors of power chuck were investigated experimentally. The fluctuation of chucking force during actual cutting had not yet been measured up to this time. Especially, behaviors of the chucking force under the existing of chatter vibration were ascertained in detail. The results obtained from this study are as follow : (1) Fluctuation of the chucking force is generated, similar to the scroll chuck, periodically due to the combined effects of directional orientation of the chucking stiffness and the cutting force. (2) Under the condition of high speed spindle, the decrease of the chucking force on power chuck is bigger than that on scroll chuck by decreasing of friction force. (3) In the case of power chuck, the decrease of the chucking force after cutting with the mechanism of compensation is smaller than the case of scroll chuck.