Coordinate measuring machine
US6058618A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1997 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Sep 9, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A coordinate measuring machine (CMM) is disclosed having improved manufacturability and low cost while maintaining high performance standards. The CMM includes a polymer composite gantry-style base incorporating a three-point support configuration in the X, Y, and Z axes. The X-beam is hollow, has a horizontal cross-sectional orientation, uses a passive ventilation technique, and is attached to the bearing at one end by a compliant mount. The Z-axis probe shaft incorporates a combined counterbalance/drive assembly and a compliant secondary rail guide mechanism. The X-axis and Y-axis drive screws have angular alignment capability using a spherical washer configuration. This combination of features serves to minimize non-repeatable errors and enhance the manufacturability of the CMM, providing substantial improvements in CMM design and construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.