| 摘要 |
PROBLEM TO BE SOLVED: To provide a spindle device capable of reducing shaft run-out of a rotating body mounted with a tool for processing a workpiece. SOLUTION: The spindle device 1 is provided with: a first rotating body 10 rotatably supported by a first bearing part; a second rotating body 20 rotatably supported by a second bearing part; a connection means for electrically connecting the second rotating body 20 to a power source 67; and a coupling means 30 for coupling the first rotating body 10 to the second rotating body 20 flexibly, to reduce transmission of force in the direction to generate shaft run-out of the first rotating body 10 from the second rotating body 20 to the first rotating body 10 by changing a coupling position for coupling the first rotating body 10 to the second rotating body 20 when the shaft run-out is generated in the second rotating body 20. The shaft run-out of the first rotating body 10 mounted with the tool 2 is reduced. COPYRIGHT: (C)2009,JPO&INPIT
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