Measurement of Spindle Stiffness by using a Magnet Loader
Taku Yamazaki, Atsushi Matsubara, Tomoya Fujita, Yusuke Koike, Toshiyuki Muraki, Kohei Asano, Kazuyuki Kawashima
The rotating spindle stiffness measurement with a developed magnetic loading device is proposed in this
research. The circumferential grooved tool is designed and manufactured for cutting down the eddy current
which decreases the electromagnetic attractive force by the loading device. The spindle stiffness is measured
in the condition that the spindle rotates at high speed with applying load to the circumferential grooved tool
by the magnetic loading device. As a result, enough electric magnetic force is loaded to the tool and the
displacement of spindle rotating at the high speed is measured.