Reference fixture for roundness measuring instrument
US6886264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2004 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Apr 7, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/282
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A reference fixture (20) for a roundness measuring instrument performs acquisition of origin information of a roundness measuring instrument (1) including a workpiece rotary mechanism (3) on which a workpiece is set and a probe (14) provided with a stylus (14a) and also performs calibration of the probe (14). The reference fixture (20) includes a mount (21), a calibration master (22) provided on a top face of the mount (21) for calibrating the sensitivity of the probe (14), an origin ball (23) disposed above the calibration master (22) for providing the origin information of the roundness measuring instrument (1) by the stylus (14a) of the probe (14), and a holder (25) that holds the origin ball (23).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.