Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 22, 2016 - October 23, 2016
Aerostatic spindle used for processing machine is supported by a pair of thrust bearing and a number of journal bearings. It is said that the rotational accuracy of the aerostatic spindle is affected by the bearing characteristics and the arrangement of aerostatic bearings. However, at present these effects were inspected by experiences or experiments using prototype spindle. Therefore, in this study, we have developed a simulator of the aerostatic spindle which numerically calculate the changes in the locus of the center of gravity and the attitude of the rotating shaft supported by aerostatic bearings. In addition, the effects of bearing arrangement on run-out of aerostatic spindle in end milling processes were numerically investigated.
