In-process machine gage
US5099585A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1991 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | Feb 19, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An in-process gage is disclosed utilizing a four bar linkage system having a floating bar in the form of a bellcrank with an active feeler connected to the bellcrank and engageable with the workpiece surface. A fixed feeler is attached directly to the gage body. Movement of the active feeler to stay in contact with the workpiece surface as it is machined results in motion of the bellcrank relative to the gage body. This motion is transferred to an electronic position sensing transducer producing an electrical signal representing the workpiece size used to control the machining process. The four bar linkage system provides for precise rotation of the active feeler with virtually zero backlash enabling a gage to be constructed that is relatively thin to fit into narrow working envelopes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.