Method and apparatus for feeding wire to a welding arc

B - Operations – Transporting – 23 – K

Patent

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Details

B23K 9/133 (2006.01) B23K 9/073 (2006.01) B23K 9/12 (2006.01) B65H 49/00 (2006.01)

Patent

CA 2678129

A method and apparatus for feeding wire in a welding system include one or more motors disposed adjacent the wire to drive it. A wire feed motor is also disposed along the wire path, and is closer to the source of wire than the torch, and closer to the source than the one or more motors. The motors may be a pair motors disposed on opposite sides of the wire and move the wire to and away from an arc end of a torch. They preferably reversing the direction of the wire within one process cycle. The or more motors may be a stepper motor, a servo motor, a zero backlash motor, a gearless motor, a planetary drive motor, or a linear actuator (such as a piston), in various embodiments.

Une méthode et un appareil qui permettent d'introduire un fil-électrode dans un poste de soudage comprennent un ou plusieurs moteurs contigus au fil-électrode pour l'entraîner. Un moteur d'entraînement de fil-électrode occupe aussi son trajet, et il se trouve plus près de la source de fil-électrode que le chalumeau, et plus près de la source que le(s) moteur(s). Ces moteurs peuvent consister en une paire de moteurs placés aux côtés opposés du fil-électrode, et ils rapprochent ou éloignent le fil-électrode d'une extrémité de l'arc d'un chalumeau. Ils inversent de préférence le sens du fil-électrode dans un cycle de processus. Ces moteurs peuvent être des moteurs pas-à-pas, des servomoteurs, des moteurs sans saccades, des moteurs sans engrenage, des moteurs à transmission planétaire ou des vérins linéaires (comme des pistons), dans diverses versions. .

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