关键词: HSK刀柄, 主轴系统, 结合面特性, 动态特性, 有限元分析

Abstract:

This  paper was  undertaken to analytically investigate the performance of the HSK toolholder-spindle connection and spindle system with FEM.The analysis results show that spindle speed has become the major influence factor on the contact area at high rotational speed, and that the contact area decreases with increasing spindle speed. The results also show that the contact stress is significantly affected by clamping force, and that increasing clamping force causes the contact stress to increase and the contact stress distribution to change in case of constant spindle rotational speed and interference magnitude. It is also observed that spindle-holder interface dynamics mainly affects the vibration mode and harmonic response. The inherent frequency decreases and the amplitude increases after considering the effects of the toolholder-spindle interface on spindle system.

Key words: HSK toolholder, spindle system, interface characteristics;dynamic characteristics, finite element method(FEM)