Fronius International Gmbh

Wolfgang Grossauer

Manfred Hubinger

Andreas Leonhartsberger

Christian Resch

A pair of two nozzle assembly receptacles for a dual-wire welding torch for two melting welding wires, has a torch body, a connection for a hose package, and a common gas nozzle, and a dual-wire welding torch has a pair of two nozzle assembly receptacles constructed as inserts for accommodating and fastening in interfaces in the torch body provided therefor, and the nozzle assembly receptacles respectively have an opening for the accommodation of a nozzle assembly in each case, which openings are arranged at an angle between 0&#xb0; and 20&#xb0; to one another, so that the central axes of the contact tubes or the welding wires running therein enclose this angle to one another.

Pair of two nozzle assembly receptacles for a dual-wire welding torch and dual-wire welding torch having such a pair of two nozzle assembly receptacles

Welding torch

A plug part releasably connects a liquid-cooled welding torch to a jack part arranged on a hose package, and a connecting device releasably connects a liquid-cooled welding torch to a hose package. In order to provide a connecting device which is suitable for high welding currents and use with hollow shaft robots, each welding current line on the plug part is arranged around a cooling duct, at least in the region of the front face, and the contact area of each welding current line is arranged axially offset from the orifices of the cooling ducts. On the jack part, each welding current line is arranged around a cooling duct, at least in the region of the end piece, and the contact area of each welding current line is arranged axially offset from the orifices of the cooling ducts.

Plug part, jack part and connecting device as well as adapter element for releasably connecting a liquid-cooled welding torch to a hose package

A device and a method for contacting a welding wire in a welding torch includes at least two contact shells having a contact area for contacting the welding wire. In order to make the contact of the welding wire as constant and permanent as possible during the lifetime of a contacting device, the contact shells have a holding section and are arranged inside a sleeve to define a rotational axis, the sleeve being fastened to a nozzle pipe having an integrated pressure mechanism. The pressure mechanism is adapted to exert pressure on the contact shells. The sleeve includes a holding device for exerting a counter-force onto the contact shells. The welding wire is contacted in the contact area of the contact shells with a contact force.

Device and method for contacting a welding rod and contact shell

The invention relates to a device and a method for contacting a welding wire () in a welding torch (), including at least two contact shells () having a contact area () for contacting the welding wire (), and to a contact shell () for contacting a welding wire (). In order to make the contact of the welding wire as constant and permanent as possible during the lifetime of a contacting device, the contact shells () have a holding section () and are arranged inside a sleeve () to define a rotational axis (), the sleeve () being fastened to a nozzle pipe () having an integrated pressure mechanism (), and the pressure mechanism () being adapted to exert pressure () on the contact shells (). The sleeve () includes a holding device () for exerting a counter-force () onto the contact shells (). The welding wire () is contacted in the contact area () of the contact shells () with a contact force ().

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Windischgarsten, Austria

Wolfgang Grossauer