Positioning device for a machining apparatus

Details Positioning device for a machining apparatus Positioning device for a machining apparatus

1991-01-25

1992-04-28

Albritton, C. L.

Electric heating

Metal heating

By arc

21912178, 21912183, B23K 2602

Patent

active

051091488

ABSTRACT:
A positioning device for a machining apparatus includes at least two independent driving mechanisms for movably adjusting a relative position of a work with respect to the machining head along at least one direction, wherein a first driving mechanism has greater inertia than a second driving mechanism. A first servo control system controls the first driving mechanism in accordance with a target value of a relative position of the work with respect to the head. A second servo control system controls the second driving mechanism utilizing as a target command value thereof an error of the first control system with respect to said target value, such that the relative position of the work with respect to the head is controlled to the target value of the relative position of the work with respect to the head.

REFERENCES:
patent: 4203064 (1980-05-01), Suzuki et al.
patent: 4215299 (1980-07-01), Edwin et al.
patent: 4760237 (1988-07-01), Mizukado et al.
patent: 4851637 (1989-07-01), Puozzo et al.
patent: 4977512 (1960-12-01), Nakagawa
Brochure on Carbon Dioxide Gas Laser Machining Apparatus from Mitsubishi Electric Corporation, 1989.

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