Gauge inspection jig and gauge inspector

Patent metadata

Field	Value
Publication number	US-11268797-B2
Application number	US-202016805474-A
Country	US
Kind code	B2
Filing date	Feb 28, 2020
Priority date	Feb 28, 2019
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A coupling portion has one end coupleable to a distal end of a measurement spindle. The measurement spindle is disposed on a gauge inspector and movable in a measurement axis direction. A cylindrical stem is insertable into a gauge holding member to hold the inserted stem. The stem slidably holds a spindle having a distal end on which a contact point of a gauge is disposed. A frame has a first end coupled to a second end of the coupling portion and has a second end to which the gauge holding member is mountable. The gauge holding member is held to the frame such that an axis of the stem runs along the measurement axis direction. As a result, inspection is performed easily and accurately in a reverse posture with a contact point facing upward when a gauge is inspected.

First claim

The invention claimed is:

1. A gauge inspection jig, comprising:
a coupling portion having a first end coupleable to a distal end of a measurement spindle, the measurement spindle being disposed on a gauge inspector and movable in a measurement axis direction;
a gauge holding member into which a cylindrical stem is insertable to hold the inserted cylindrical stem, the cylindrical stem slidably holding a spindle having a distal end on which a contact point of a gauge is disposed; and
a body member having a first end coupled to a second end of the coupling portion and having a second end to which the gauge holding member is mountable, wherein
the gauge holding member is held to the body member such that an axis of the cylindrical stem runs along the measurement axis direction.

2. The gauge inspection jig according to claim 1 , wherein
the body member includes:
a first beam extending in a second direction orthogonal to a first direction, the second direction being the measurement axis direction;
a first column having a first end coupled to a first end of the first beam and extending along the first direction; and
a second beam extending from a second end of the first column along the second direction, wherein
the gauge holding member is fixed on a surface of the second beam orientated in an extending direction of the first column such that the cylindrical stem does not interfere with the second beam.

3. The gauge inspection jig according to claim 2 , wherein
the body member includes:
a second column having a first end coupled to the first end of the first beam and extending along the first direction; and
a third beam extending from a second end of the second column in a direction opposite to an extending direction of the first beam, wherein
the gauge holding member is fixed on a surface of the third beam orientated in an extending direction of the second column such that the cylindrical stem does not interfere with the third beam.

4. The gauge inspection jig according to claim 3 , wherein
the gauge holding member is held such that the cylindrical stem is inserted into a clearance between the second beam and the third beam.

5. The gauge inspection jig according to claim 3 , wherein
the gauge holding member includes
first and second plate-shaped members having surfaces perpendicular to the first direction, the surfaces being principal surfaces, wherein
the first plate-shaped member has a first notch along a cylindrical shape of the cylindrical stem,
the second plate-shaped member has a second notch along the cylindrical shape of the cylindrical stem, and
the cylindrical stem inserted into a region formed by the first notch and the second notch is sandwiched between the first notch and the second notch to hold the cylindrical stem.

6. The gauge inspection jig according to claim 5 , wherein
in the first and the second plate-shaped members, female threads extending in a direction parallel to a surface perpendicular the first direction are disposed, and
wherein screwing into the female threads across the first and the second plate-shaped members couples the first plate-shaped member and the second plate-shaped member together.

7. The gauge inspection jig according to claim 4 , wherein
the gauge holding member includes
first and second plate-shaped members having surfaces perpendicular to the first direction, the surfaces being principal surfaces, wherein
the first plate-shaped member has a first notch along a cylindrical shape of the cylindrical stem,
the second plate-shaped member has a second notch along the cylindrical shape of the cylindrical stem, and
the cylindrical stem inserted into a region formed by the first notch and the second notch is sandwiched between the first notch and the second notch to hold the cylindrical stem.

8. A gauge inspector, comprising:
a measurement spindle movable in a measurement axis direction; and
a fixing portion configured to fix a member contacted by a contact point of a gauge held in a reverse posture by a gauge inspection jig, wherein
the gauge inspection jig includes:
a coupling portion having a first end coupleable to a distal end of the measurement spindle;
a gauge holding member into which a cylindrical stem is insertable to hold the inserted cylindrical stem, the cylindrical stem slidably holding a spindle having a distal end on which the contact point of the gauge is disposed; and
a body member having a first end coupled to a second end of the coupling portion and having a second end to which the gauge holding member is mountable, wherein
the gauge holding member is held to the body member such that an axis of the cylindrical stem runs along the measurement axis direction.

9. The gauge inspector according to claim 8 , wherein
the body member includes:
a first beam extending in a second direction orthogonal to a first direction, the second direction being the measurement axis direction;
a first column having a first end coupled to a first end of the first beam and extending along the first direction; and
a second beam extending from a second end of the first column along the second direction, wherein
the gauge holding member is fixed on a surface of the second beam orientated in an extending direction of the first column such that the cylindrical stem does not interfere with the second beam.

10. The gauge inspector according to claim 9 , wherein
the body member includes:
a second column having a first end coupled to the first end of the first beam and extending along the first direction; and
a third beam extending from a second end of the second column in a direction opposite to an extending direction of the first beam, wherein
the gauge holding member is fixed on a surface of the third beam orientated in an extending direction of the second column such that the cylindrical stem does not interfere with the third beam.

11. The gauge inspector according to claim 10 , wherein
the gauge holding member is held such that the cylindrical stem is inserted into a clearance between the second beam and the third beam.

12. The gauge inspector according to claim 10 , wherein
the gauge holding member includes
first and second plate-shaped members having surfaces perpendicular to the first direction, the surfaces being principal surfaces, wherein
the first plate-shaped member has a first notch along a cylindrical shape of the cylindrical stem,
the second plate-shaped member has a second notch along the cylindrical shape of the cylindrical stem, and
the cylindrical stem inserted into a region formed by the first notch and the second notch is sandwiched between the first notch and the second notch to hold the cylindrical stem.

13. The gauge inspector according to claim 12 , wherein
in the first and the second plate-shaped members, female threads extending in a direction parallel to a surface perpendicular the first direction are disposed, and
wherein screwing into the female threads across the first and the second plate-shaped members couples the first plate-shaped member and the second plate-shaped member together.

14. The gauge inspector according to claim 11 , wherein
the gauge holding member includes
first and second plate-shaped members having surfaces perpendicular to the first direction, the surfaces being principal surfaces, wherein
the first plate-shaped member has a first notch along a cylindrical shape of the cylindrical stem,
the second plate-shaped member has a second notch along the cylindrical shape of the cylindrical stem, and
the cylindrical stem inserted into a region formed by the first notch and the second not

Assignees

• Mitutoyo Corp

Inventors

• Ohno Teppei
• Kikuchi Mao

Classifications

• G01B21/047

  Accessories, e.g. for positioning, for tool-setting, for measuring probes · CPC title

• G01B3/002 Primary

  Details · CPC title

• G01B21/042 Primary

  Calibration or calibration artifacts (G01B3/30, G01B9/02072 take precedence) · CPC title

• G01B5/0004

  Supports (G01B5/025 takes precedence) · CPC title

• G01B3/22

  Feeler-pin gauges, e.g. dial gauges (for measuring contours or curvatures G01B5/20) · CPC title