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Patent Searching and Data


Title:
INDUSTRIAL ROBOT
Document Type and Number:
WIPO Patent Application WO/2021/235347
Kind Code:
A1
Abstract:
Provided is an industrial robot in which a gear for causing a work tool to rotate can easily be retrofitted to a robot without requiring work to adjust backlash. The present invention comprises: a first wrist element that, at the distal end of a front arm of a robot, is capable of rotating about a first axis following the longitudinal direction of the front arm; a second wrist element that, at the first wrist element, is capable of rotating about a second axis intersecting the first axis in a roughly perpendicular manner; a third wrist element that, at the second wrist element, is capable of rotating about a third axis extending from the intersection point of the first and second axes in a direction roughly perpendicular to the direction in which the second axis extends; a first gear that is attached to the third wrist element coaxially with the third axis and that is capable of rotating about the third axis; a second gear that is driven by rotation of the first gear due to meshing with the first gear and that is capable of rotating; and a case secured to the second wrist element. The second gear is attached to the case via a bearing so as to be capable of rotating about a fourth axis positioned at a prescribed distance relative to the third axis.

Inventors:
MOTOKADO Tomoyuki (JP)
INOUE Toshihiko (JP)
Application Number:
PCT/JP2021/018412
Publication Date:
November 25, 2021
Filing Date:
May 14, 2021
Export Citation:
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Assignee:
FANUC CORPORATION (JP)
International Classes:
B25J17/02; B25J19/00
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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