Workpiece position control
US4731934A · kind A · utility
16Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1987 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Mar 2, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/282
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Metrological apparatus is provided with a turntable (4) which is movable horizontally and pivotally for centering and levelling. The turntable (4) is supported at three points (A,B,P), one (P) of which is fixed and the other two (A,B) of which are vertically movable by motorized jacks. Centering and levelling is achieved automatically by means of a computer (72) which calculates the required horizontal and pivotal movements of the turntable (4) from data obtained by sensing the workpiece surface with a transducer (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.