公开(公告)号：US10753438B2

公开(公告)日：2020-08-25

申请号：US15906558

申请日：2018-02-27

Applicant: MITUTOYO CORPORATION

Inventor： Yoshiharu Kimura ,  Yoshikazu Ooyama ,  Kazuaki Kawarai

IPC: G01B5/008 ,  F16H19/02 ,  F16M13/02 ,  F15B15/14 ,  G01B5/012 ,  G01B5/20 ,  G01B11/24 ,  G01B11/00

Abstract: A lifting drive device for a Z-axis spindle inserted into a guide tube and guided via an air layer including: a wire extending upward from the inside of the Z-axis spindle and having its upper end supported by the guide tube, a piston connected to an lower end of the wire, a cylinder that moves up-and-down relative to the piston by an air supplied to a cylinder chamber provided to the Z-axis spindle and partitioned by the piston, a driving roller provided to the guide tube and in contact with the surface of the Z-axis spindle, and a motor for driving the driving roller, so as to achieve highly precise linear movement and swift lifting of the Z-axis spindle guided by an air bearing and to be suitable for structural simplification, weight reduction and vibration countermeasures.

公开(公告)号：US20170097220A1

公开(公告)日：2017-04-06

申请号：US15279638

申请日：2016-09-29

Applicant: Mitutoyo Corporation

Inventor： Takao Oneta ,  Koji Takesako ,  Tomomitsu Sugawara ,  Mitsuru Fukuda ,  Kazuaki Kawarai

IPC: G01B5/008

CPC classification number: G01B5/008 ,  G01B21/047

Abstract: A coordinate measuring apparatus includes a base on which an object to be measured is mounted, a movable X-axis beam, a Y-axis column with a hollow part that is provided on the base and supports the X-axis beam, a control unit that is provided under the base and controls the movement of the X-axis beam, and a cable that is wired from the X-axis beam to the control unit through the hollow part of the Y-axis column.

公开(公告)号：US10001357B2

公开(公告)日：2018-06-19

申请号：US15279638

申请日：2016-09-29

Applicant: Mitutoyo Corporation

Inventor： Takao Oneta ,  Koji Takesako ,  Tomomitsu Sugawara ,  Mitsuru Fukuda ,  Kazuaki Kawarai

IPC: G01B5/008 ,  G01B21/04

CPC classification number: G01B5/008 ,  G01B21/047

Abstract: A coordinate measuring apparatus includes a base on which an object to be measured is mounted, a movable X-axis beam, a Y-axis column with a hollow part that is provided on the base and supports the X-axis beam, a control unit that is provided under the base and controls the movement of the X-axis beam, and a cable that is wired from the X-axis beam to the control unit through the hollow part of the Y-axis column.