Coordinate measuring machine having an air counterbalance system

Details Coordinate measuring machine having an air counterbalance system Coordinate measuring machine having an air counterbalance system

1978-05-08

1980-06-17

Stearns, Richard R.

Geometrical instruments

Area integrators

Electrical

33 1M, 33DIG2, G01B 502

Patent

active

042076803

ABSTRACT:
A coordinate measuring machine (10) having a vertically mounted probe (32), the weight of which is offset by an air counterbalance system (100). The air counterbalance system is adapted to use a source of air under pressure acting upon a piston (127) coupled to the vertically mounted probe (42). A torque converter (130) is mounted between the probe (42) and the piston (127) allowing the piston (127) to have a shorter travel than the allowable vertical travel of the probe (42). The air counterbalance system (100) preferably has components selected and arranged to minimize friction and weight to avoid distorting the precision of measurements on the coordinate measurement machine.

REFERENCES:
patent: 3354553 (1967-11-01), Heldmaier
patent: 3818596 (1974-06-01), Stemple et al.
patent: 3831283 (1974-08-01), Pegella et al.

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