Machining apparatus with automatic restart function

Details Machining apparatus with automatic restart function Machining apparatus with automatic restart function

1992-10-01

1994-03-08

Albritton, C. L.

Electric heating

Metal heating

By arc

21912183, B23K 2600

Patent

active

052930246

ABSTRACT:
A laser cutting apparatus which allows cutting to be automatically restarted or redone without intervention from an operator once a cutting error or fault occurs. In a first embodiment, when the fault occurs the apparatus discontinues processing on the product corresponding to the fault. Thereafter, it moves to, and restarts cutting at, a starting position of the next product to be cut. In a second embodiment, the apparatus corrects a fault and continues cutting on the product corresponding to the fault by restarting cutting at the fault point. It determines whether a restart is possible at the point of the fault based on the type or definition of the fault. If a predetermined number of restarts are attempted at the point of fault without a successful restart, then the apparatus moves to a new start position. In another embodiment, the apparatus uses a profile sensor to prevent machine damage by sensing the position of the cutting head relative to the workpiece.

REFERENCES:
patent: 3764775 (1973-10-01), Hasslinger et al.
patent: 4469930 (1984-09-01), Takahashi

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