NODE OF GROUNDING OF WELDING WIRE FEEDER Russian patent published in 2009 - IPC B23K9/10 

FIELD: mechanics; electricity.

SUBSTANCE: portable wire feeder for feeding of an electrode wire and a welding current to a place of execution of operation of welding contains an input, is electrically connected to the power supply source. The output is electrically connected to an input for reception of welding current given on an input from a source of power supply for feeding of welding current and an electrode wire to a place of execution of operation of welding on directing sleeve. The motorised system of wire feeding contains the drive and the pulling roller put in action by means of the drive, for a direction of a wire from a source of feeding of a wire to an exit for feeding of an electrode wire to a place of execution of operation of welding by means of a directing sleeve. A current for power supply of system of feeding of a wire select from welding current transmitted from an input on an exit. A grounding node is entered into contact without an attachment with a work piece exposed operation of welding, for creation of electric grounding in relation to a current selected from arch welding current.

EFFECT: mobility of the giving mechanism concerning a work piece and convenience of security of electric grounding.

10 cl, 10 dwg