Apparatus for carrying machine elements

Details Apparatus for carrying machine elements Apparatus for carrying machine elements

1982-02-12

1985-07-02

Stearns, Richard R.

Geometrical instruments

Miscellaneous

Light direction

33DIG2, 308 3A, 33572, 33556, G01B 503, G01B 703

Patent

active

045259305

ABSTRACT:
A dimensional measuring and checking machine mounts a bridge structure (12) on legs (22) which are supported on a base (10) by air bearings. The varying forces due to travel of a probe mounting carriage (24) create vertical displacements of the bearings and movement of the bridge (12) out of alignment. To compensate for this, and thus enable high accuracy measuring, a chain (34) moves with the bridge (12), rotating a spindle (42) at one end of the machine, and thus moving the legs (22) at that end so levers (48) and pivot blocks (52) vary the height of the bridge (12).

REFERENCES:
patent: 3639993 (1972-02-01), Sartorio
patent: 3749501 (1973-07-01), Wieg
patent: 3831283 (1974-08-01), Pagella et al.
patent: 3840993 (1974-10-01), Shelton
patent: 4138822 (1979-02-01), Parodi

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