公开(公告)号：US11150149B2

公开(公告)日：2021-10-19

申请号：US16649811

申请日：2018-09-03

Applicant: SINTOKOGIO, LTD.

Inventor： Kazunori Matsuda ,  Takuya Koyama

IPC: G01M13/021 ,  G01L1/25 ,  G01M13/025

Abstract: A gear positioning device according to an embodiment includes: a chuck configured to hold a gear; a rotation drive mechanism configured to rotationally drive the chuck so that the gear rotates around a predetermined rotation axis; a displacement meter configured to continuously or periodically acquire a measurement value representing a distance between a reference point located outside the gear and an outer peripheral surface of the gear while rotating the gear; and a control device configured to set a part of the outer peripheral surface of the gear as a measurement object on the basis of a rotation angle of the gear, the measurement value, and at least one predetermined reference value and control the rotation drive mechanism so that the measurement object is disposed at a reference position.