平面研削盤用減衰付加据付具の開発

概要

論文の詳細を見る
It is well known that mounting conditions of machine tools affect their dynamic behavior as well as their level and static stability. Small-sized surface grinding machines are installed on the concrete floor through mounting elements and jackscrews supplied from machine builders. By the way, in horizontal spindle-reciprocating table type surface grinding machines, rocking mode vibrations are excited by the shock of the table reversal. Chatter marks due to the rocking mode vibrations are often generated on finished surface. In the present paper, special mounting elements with damping are developed for practical use. Machine weight is supported by jackscrews. Damping effect is given by compression of rubber sheets in mounting elements through inner screws in jackscrews. By applying the special mounting elements to an existing surface grinding machine, damping effects of rocking mode vibrations are investigated experimentally. By using the special mounting elements with damping, rocking mode vibrations due to the shock of the table reversal are decreased 33%. By using the special mounting elements, relative receptances between grinding wheel and work table are decreased ll%. Tuning fork mode vibrations also are decreased a little.
公益社団法人精密工学会の論文
1992-05-05