Coordinate measuring machine with improved table support
US5173613A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1991 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Apr 22, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/008
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A coordinate measuring machine (10) having a three point support for a work supporting table (24) mounted over a base (12) constructed of a thermally dissimilar material. A first fixed support, (26A) and a laterally compliant second support (26B) are located at the front of the machine. The second front support (26B) is comprised of a pair of webs (28) oriented to be compliant in the lateral direction to allow relative thermal growth between the table (24) and base (12) while being rigid in the longitudinal direction to prevent rotation of the table (24) about the fixed front support (26A). Stacked crossed roller bearings (38A, 38B) provide a frictionless third point of support at the rear of the table (24).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.