Bridge type coordinate measuring machine

Details Bridge type coordinate measuring machine Bridge type coordinate measuring machine

1985-01-24

1986-12-23

Little, Willis

Geometrical instruments

Miscellaneous

Light direction

33551, G01B 728

Patent

active

046303740

ABSTRACT:
A bridge type coordinate measuring machine (CMM) characterized by a bridge (20) that has a closed loop configuration encircling the upper surface (11) of the measuring machine base (10). The bridge (20) includes two uprights (21, 22), an upper member (23) connecting the uprights together, and a lower member (24) that connects the uprights together above the ways (12, 13) and below the upper surface (11) of said base (10). Bearings (41) acting in three perpendicular directions on each guideway (12, 13) minimize unwanted movement of the bridge (20). This arrangement increases the resonant frequency of the bridge, improves the CMM accuracy and repeatability, and provides for easy assembly of the bridge (20) onto the base (10). Bearings (41) for the bridge are offset inwardly from the vertical axis of the uprights of the bridge and a respective 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).

REFERENCES:
patent: 2620256 (1952-12-01), Kerns et al.
patent: 3241243 (1966-03-01), Speer
patent: 3749501 (1973-07-01), Wieg
patent: 3840993 (1974-10-01), Shelton
patent: 4155173 (1979-05-01), Sprandel
patent: 4175327 (1979-11-01), Herzog
patent: 4315371 (1982-02-01), Kotani et al.
patent: 4442607 (1984-04-01), Sakata et al.

Affiliated with

Also associated with

Rating

Bridge type coordinate measuring machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bridge type coordinate measuring machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bridge type coordinate measuring machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-164649