Title:
DRAW TUBE DRIVE MECHANISM, SPINDLE UNIT, AND MACHINE TOOL
Document Type and Number:
WIPO Patent Application WO/2024/047844
Kind Code:
A1
Abstract:
The present invention provides a draw tube drive mechanism provided with: a draw tube that is movable, in a first direction substantially parallel to a first axis, with respect to a support body supporting a rotating body so as to be rotatable about the first axis; a drive device that moves a moving body in a second direction substantially perpendicular to the first direction; a first pin; a second pin; a third pin; a fourth pin; a first link that is connected to the moving body via the first pin; a second link that is connected to the first link via the second pin and that is connected to the support body via the fourth pin; and a third link that is connected to the first link via the third pin and that transmits, to the draw tube, a force received from the moving body via the first link. The first pin, the second pin, and the third pin are arranged substantially in a straight line, as viewed in a direction along a third direction substantially perpendicular to both of the first direction and the second direction. The distance between the first pin and the second pin and the distance between the second pin and the third pin are each substantially equal to the distance between the second pin and the fourth pin.
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Inventors:
SANO KATSUKI (JP)
EBOSHI KOICHI (JP)
EBOSHI KOICHI (JP)
Application Number:
PCT/JP2022/032969
Publication Date:
March 07, 2024
Filing Date:
September 01, 2022
Export Citation:
Assignee:
YAMAZAKI MAZAK CORP (JP)
International Classes:
B23B31/117; B23B19/02; B23B21/00; B23B31/20; B23B31/26
Foreign References:
| JPH02126708U | 1990-10-18 | |||
| JPH0531846U | 1993-04-27 | |||
| JPS6268741U | 1987-04-30 | |||
| JPH02126707U | 1990-10-18 | |||
| JP2017007071A | 2017-01-12 |
Attorney, Agent or Firm:
ISHIKAWA Taro (JP)
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