Title:
MAIN SPINDLE DEVICE
Document Type and Number:
Japanese Patent JP2014237208
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a main spindle device which performs controlling so as to periodically change a flow rate of a fluid supplied to a damping addition bearing that rotatably supports a main spindle, to thereby inhibit vibration of the main spindle while inhibiting heat generation of the fluid of the damping addition bearing, and is used in a machine tool.SOLUTION: A main spindle device 1 includes: a main spindle 20 which holds a tool and is rotationally driven; a damping addition bearing 50 which receives a supplied fluid to inhibit vibration of the main spindle 20; a fluid supply device 60 which supplies the fluid to the damping addition bearing 50 and may adjust a flow rate Q of the fluid; and a control device 80 which periodically changes the flow rate Q of the fluid supplied by the fluid supply device 60.
Inventors:
MATSUNAGA SHIGERU
TANASE RYOTA
TANASE RYOTA
Application Number:
JP2013121927A
Publication Date:
December 18, 2014
Filing Date:
June 10, 2013
Export Citation:
Assignee:
JTEKT CORP
International Classes:
B23B19/02; B23Q1/70; B23Q11/00; B23Q17/09; F16C27/02; F16C32/00; F16C32/06; F16C33/74; F16C35/12
Domestic Patent References:
| JP2000237902A | 2000-09-05 | |||
| JP2002005169A | 2002-01-09 | |||
| JP2003089026A | 2003-03-25 | |||
| JP2002357222A | 2002-12-13 | |||
| JPS4320548B1 | ||||
| JP2004106091A | 2004-04-08 | |||
| JPS63254220A | 1988-10-20 |
Attorney, Agent or Firm:
Kobayashi 脩
Kiichi Yamamoto
Kiichi Yamamoto