Fixture for measuring center position of rotation shaft and method for measuring center position of rotation shaft using the same

US2016138901A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016138901-A1
Application numberUS-201514940127-A
CountryUS
Kind codeA1
Filing dateNov 12, 2015
Priority dateNov 19, 2014
Publication dateMay 19, 2016
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A rotation table, center position of a rotation shaft of which is to be measured, is mounted on a table of a machine tool and includes a turning plate on which a workpiece is placed, a rotary drive for rotating the turning plate, and a rotation shaft support device that is located opposite the rotary drive and supports the turning plate. A fixture, including a rod-like member that is provided with spherical reference bodies at both ends and is disposed on the turning plate of the rotary table, is used to measure the center position of the rotation shaft of the rotary table.

First claim

Opening claim text (preview).

1 . A fixture for measuring a center position of a rotation shaft of a rotary table, wherein the rotary table, mounted on a table of a machine tool, comprises a turning plate on which a workpiece is placed, a rotary drive for rotating the turning plate, and a rotation shaft support device that is located opposite the rotary drive and supports the turning plate, and wherein the fixture comprises a rod-like member that is disposed on the turning plate of the rotary table and is provided with spherical reference bodies at both ends. 2 . A method for measuring a center position of a rotation shaft of a rotary table, wherein the rotary table, mounted on a table of a machine tool, comprises a turning plate on which a workpiece is placed, a rotary drive for rotating the turning plate, and a rotation shaft support device that is located opposite the rotary drive and supports the turning plate, the method comprising: mounting on the rotary table a fixture for measuring the center position of the rotation shaft of the rotary table, the fixture including a rod-like member having spherical reference bodies at both ends; measuring both a center position of the reference body at one end and a center position of the reference body at the other end of the rod-like member of the fixture at a plurality of rotation shaft positions using a probe attached to the machine tool; and determining an inclination angle and a center position of the rotation shaft from the measured center positions of the reference bodies.

Assignees

Inventors

Classifications

  • G01B5/004Primary

    for measuring coordinates of points · CPC title

  • G01B5/14Primary

    for measuring distance or clearance between spaced objects or spaced apertures (G01B5/24 takes precedence) · CPC title

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What does patent US2016138901A1 cover?
A rotation table, center position of a rotation shaft of which is to be measured, is mounted on a table of a machine tool and includes a turning plate on which a workpiece is placed, a rotary drive for rotating the turning plate, and a rotation shaft support device that is located opposite the rotary drive and supports the turning plate. A fixture, including a rod-like member that is provided w…
Who is the assignee on this patent?
Fanuc Corp
What technology area does this patent fall under?
Primary CPC classification G01B5/004. Mapped technology areas include Physics.
When was this patent published?
Publication date Thu May 19 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).