公开(公告)号：US20180058836A1

公开(公告)日：2018-03-01

申请号：US15664273

申请日：2017-07-31

Applicant: MITUTOYO CORPORATION

Inventor： Tatsuki NAKAYAMA ,  Kazushige ISHIBASHI

IPC: G01B5/20

CPC classification number: G01B5/201

Abstract: A roundness measuring device including: an angle detector detecting a current rotation angle of a table relative to an X axis direction; a joystick (external operator) issuing an instruction for an operation amount of a rotation axis line of the table; a centering controller calculating a CX axis displacement amount and a CY axis displacement amount from the operation amount and the rotation angle, and displacing a CX axis displacement mechanism and CY axis displacement mechanism based on the calculated CX axis displacement amount and CY axis displacement amount; and a centering controller calculating an LX axis tilt amount and an LY axis tilt amount from the operation amount and the rotation angle, and displacing an LX axis tilt mechanism and LY axis tilt mechanism based on the calculated LX axis tilt amount and LY axis tilt amount.