Geometrical instruments – Gauge – Coordinate movable probe or machine
Patent
1988-06-17
1990-07-10
Cuchlinski, Jr., William A.
Geometrical instruments
Gauge
Coordinate movable probe or machine
33 1M, G01B 503, G01B 703
Patent
active
RE0332542
ABSTRACT:
A bridge type coordinate measuring machine characterized by a bridge (20) that has a closed loop configuration encircling the measuring machine base (10). The bridge (20) includes two uprights (21, 22), an upper member (23) connecting the uprights together and at least one lower member (24) connecting the uprights together below the upper surface (11) of the base (10). Bearings (41) for the bridge are offset inwardly from the vertical axes of the uprights of the bridge and a guideway (12, 13), along which the bearings travel, is located on each side of the base. The bearings (41) operate upwardly, downwardly and sidewardly against the surfaces of the guideways (12, 13) located on the sides of the base (10). This arrangement both stiffens and raises the resonant frequency of the bridge, thereby improving the measuring accuracy and repeatability of the coordinate measuring machines performance.
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Cuchlinski Jr. William A.
Gutierrez Diego F. F.
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