Apparatus for fixing workpieces to be machined and method of fix

Details Apparatus for fixing workpieces to be machined and method of fix Apparatus for fixing workpieces to be machined and method of fix

1988-05-04

1990-03-06

Schmidt, Frederick R.

Turning

Process of turning

82162, 82164, B23B 3300, B23Q 124

Patent

active

049055518

ABSTRACT:
A fixing apparatus (3) for fixing a workpiece (2) to be machined comprises at least two jaws (6,7), which are individually adjustable and are preferably adapted to be fixed in position. In order to permit a workpiece (2) to be fixed exactly in a desired position, to avoid errors, to permit both centering and flat-and sag-compensating clamping sequences to be performed, and to permit various clamping sequences to be performed, at least one of the jaws (6, 7) has a position pickup (11, 12) associated with it, which detects the instantaneous position of the associated jaw (6, 7) and delivers corresponding signals to a controller (13), which in accordance with programs stored in the controller generates displacement signals which depend on the position signals and represent the distances over which the jaws (6, 7) are to be displaced and delivers said signals to actuators (8, 9) for displacing said jaws (6, 7) over said distances.

REFERENCES:
patent: 4254676 (1981-03-01), Wilson
patent: 4414871 (1983-11-01), Trout
patent: 4443142 (1984-04-01), Blaimschein
patent: 4779495 (1988-10-01), Berbalk

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