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Title:
FLUID HOLDING DEVICE
Document Type and Number:
Japanese Patent JP2011073118
Kind Code:
A
Abstract:

To provide a fluid holding device (a static pressure bearing and a static pressure guide) capable of restraining accuracy reduction in a moving body by a disturbance load of varying at a high speed.

This fluid holding device includes displacement sensors 9 and 10 for measuring relative displacement by disturbance force of a main spindle 3 and the static pressure bearings 4 and 5, and volume increasing-decreasing means 7 and 8 for increasing-decreasing the recess volume of a static pressure pocket, and restrains accuracy reduction in the fluid holding device by the disturbance force by increasing-decreasing the recess volume by the volume increasing-decreasing means 7 and 8 so as to restrain displacement detected by the displacement sensors 9 and 10.


Inventors:
Tanase, Ryota
Shinno, Yasuo
Application Number:
JP2009000229639
Publication Date:
April 14, 2011
Filing Date:
October 01, 2009
Export Citation:
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Assignee:
JTEKT CORP
International Classes:
B23B19/02; B23Q1/70; B23Q17/00; F16C32/06
Domestic Patent References:
1994-04-12
1996-02-02
1994-08-23
2001-04-17
1992-12-10
1991-03-01
2009-05-28



 
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