Automatic copying method for a welding torch in an arc welding r

Details Automatic copying method for a welding torch in an arc welding r Automatic copying method for a welding torch in an arc welding r

1990-04-25

1991-11-19

Shaw, Clifford C.

Electric heating

Metal heating

By arc

21912512, B23K 9127

Patent

active

050668480

ABSTRACT:
In the case where lap fillet welding is carried out by a conventional arc welding robot, when a weld wire is once departed towards an upper plate, the wire keeps being away from a weld line, and therefore, various teaching techniques so as to prevent such a departure have been re-required. In the case where a weld line is long, if the wire is departed, a defective weld length becomes long, thus posing an significant problem.
The present invention provides a control method for an arc sensor by detection of a weld current. That is, a departure of a lap fillet weld towards an upper plate is prevented merely by addition of a detection algorithm, teaching can be simplified and practical merits are great.

REFERENCES:
patent: 4556777 (1985-12-01), Sarugaku et al.

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