Checking tool for measuring distance between adjacent sinking grooves in inner hole of mechanical part
US10365081B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 25, 2016 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Sep 25, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A checking tool for measuring a distance between adjacent sinking grooves in an inner hole of a mechanical part, including: a gage block, end cover, sliding piece, pin, base, pin seat, support, measuring rod, spring, barrel, and dial indicator. An inner end face of the base is provided with the sliding piece, at least three concentric circular arc grooves are on the end face, paired eccentric arc grooves are on the sliding piece, the pin connected to the pin seat runs through the base and sliding piece, which is axially limited by the end cover, and the seat rotates relative to the base to realize radial expansion displacement of the sliding piece. A measuring head is formed by the dial indicator, measuring rod, spring and barrel. By positioning the edges of adjacent sinking grooves in an inner hole, measurement for a distance between the grooves is converted into depth measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.