Abstract: Device and method for welding a workpiece (2) having a welding torch (3) which can be mechanically coupled by a coupling element (4) to a hose bundle (5) for supplying the welding torch (3) at least with compressed air or with a protective gas, wherein compressed air applied to the coupling element (4) can be diverted by a diverting valve (10) provided in the coupling element (4) for actuating an actuator (7).

Abstract: A device for releasable fixed holding of a welding wire in a welding wire guide is described. This device is characterized in that the welding wire guide includes a cage for radially displaceable braking bodies, wherein a locking cone surrounds the braking bodies, and that, of the two cooperating functional elements, formed on the one hand by the welding wire guide and on the other hand by the locking cone, one is mounted in a non-displaceable manner in a holder and the other is mounted to be axially displaceable against a spring force with respect to the non-displaceable functional element.

Abstract: Device and method for welding a workpiece (2) having a welding torch (3) which can be mechanically coupled by a coupling element (4) to a hose bundle (5) for supplying the welding torch (3) at least with compressed air or with a protective gas, wherein compressed air applied to the coupling element (4) can be diverted by a diverting valve (10) provided in the coupling element (4) for actuating an actuator (7).

Abstract: A device for releasable fixed holding of a welding wire in a welding wire guide is described. This device is characterised in that the welding wire guide includes a cage for radially displaceable braking bodies, wherein a locking cone surrounds the braking bodies, and that, of the two cooperating functional elements, formed on the one hand by the welding wire guide and on the other hand by the locking cone, one is mounted in a non-displaceable manner in a holder and the other is mounted to be axially displaceable against a spring force with respect to the non-displaceable functional element.

Abstract: The invention relates to a cleaning apparatus (1) for cleaning welding torches (5), comprising at least two coils (4, 11) and an opening (3) in order to introduce the welding torch (5) for the electromagnetic cleaning thereof, a supply device (7) connected to the coils (4, 11), and optionally an apparatus for applying a cleaning fluid to the tip of the welding torch (5), wherein preferably all components are disposed in a common housing (2) and regulated by a controller (8), and to a corresponding method for cleaning welding torches (5). In order to increase the cleaning quality and the cleaning range, according to the invention the coils (4, 11) can be supplied independently of each other with electrical energy by the supply device (7) for the purpose of cleaning the welding torch (5), and a cooling apparatus (14) is provided for cooling the coils (4, 11).

Abstract: The invention relates to a cleaning apparatus (1) for cleaning welding torches (5), comprising at least two coils (4, 11) and an opening (3) in order to introduce the welding torch (5) for the electromagnetic cleaning thereof, a supply device (7) connected to the coils (4, 11), and optionally an apparatus for applying a cleaning fluid to the tip of the welding torch (5), wherein preferably all components are disposed in a common housing (2) and regulated by a controller (8), and to a corresponding method for cleaning welding torches (5). In order to increase the cleaning quality and the cleaning range, according to the invention the coils (4, 11) can be supplied independently of each other with electrical energy by the supply device (7) for the purpose of cleaning the welding torch (5), and a cooling apparatus (14) is provided for cooling the coils (4, 11).