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Title:
METHOD FOR RECEIVING AND DELIVERING WORKPIECE OF MACHINE TOOL
Document Type and Number:
Japanese Patent JP2005001050
Kind Code:
A
Abstract:

To provide a method for receiving and delivering a workpiece for reducing workpiece holding position deviations and holding cracks by suppressing applying of unnecessary force to the workpiece when receiving and delivering the workpiece, in a two spindle facing type lathe.

When receiving and delivering the workpiece held by a collet chuck of a first spindle from/to a collet chuck of a second spindle, torque of a feed shaft direction of the second spindle is made smaller than a prescribed value. As a result, the second spindle is moved forward and backward in the feed shaft direction to cancel retracting direction or extruding direction stress loaded on the workpiece, and the deviation amount can be detected and corrected, when jaws of the collet chuck of the second spindle are closed to hold the workpiece.


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JP2019059013COUPLING DEVICE
Inventors:
ARAI TOMONORI
Application Number:
JP2003166762A
Publication Date:
January 06, 2005
Filing Date:
June 11, 2003
Export Citation:
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Assignee:
NAKAMURA TOME PRECISION IND
International Classes:
B23B31/20; B23B15/00; B23B25/06; (IPC1-7): B23B15/00; B23B25/06; B23B31/20
Attorney, Agent or Firm:
Kaichi Otani



 
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