Abstract: 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.

Abstract: The invention relates to a device and a method for contacting a welding wire (13) in a welding torch (10), including at least two contact shells (31) having a contact area (32) for contacting the welding wire (13), and to a contact shell (31) for contacting a welding wire (13). 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 (31) have a holding section (48) and are arranged inside a sleeve (37) to define a rotational axis (43), the sleeve (37) being fastened to a nozzle pipe (38) having an integrated pressure mechanism (36), and the pressure mechanism (36) being adapted to exert pressure (33) on the contact shells (31). The sleeve (37) includes a holding device (42) for exerting a counter-force (34) onto the contact shells (31). The welding wire (13) is contacted in the contact area (32) of the contact shells (31) with a contact force (35).

Abstract: 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.

Abstract: The invention relates to a TIG welding torch (1) comprising a torch head (2) with at least one non-melting electrode (3) and at least one feeder device (4) for a melting wire-shaped filler material (5), wherein the longitudinal axis of each electrode (3) and the longitudinal axis of each wire-shaped filler material (5) intersect each other in a Tool Center Point (TCP), and wherein the torch head (2) is arranged adjustably on a support (6) and is adapted to be fixed in at least two different positions while the Tool Center Point (TCP) remains the same. For achieving a compact construction and higher flexibility during welding, the support (6) is of elongate and quasi V-shaped design and comprises a circular guide (7) at the front end thereof, in which guide (7) a slide (8) connected with the torch head (2) is adapted to be arranged, so that the outer dimensions of the torch head (2) are not changed substantially in the case of an adjustment of the torch head (2).

Abstract: The invention relates to a securing element (30) arranged between a gas element (32) and a current element (33) of the plug-in element (28). A fixing element (34) is arranged in the coupling (29) of the torch handle and meshes with said securing element (30), and, for guiding over said fixing element (34) arranged in the coupling (29), the gas element (32) has a diameter smaller than those of the securing element (30) and of the current element (33). Said securing element (30) can be guided over the fixing element (34) using a flat area (35), while the gas element (32) is arranged in a gas bore hole (37) in the coupling (29) in a sealing manner. The position of the torch body (27) can be freely adjusted by means of a manual rotational movement, said fixing element (34) being guided in a circumferential groove (36) in said securing element (30).

Abstract: The invention relates to a securing element (30) arranged between a gas element (32) and a current element (33) of the plug-in element (28). A fixing element (34) is arranged in the coupling (29) of the torch handle and meshes with said securing element (30), and, for guiding over said fixing element (34) arranged in the coupling (29), the gas element (32) has a diameter smaller than those of the securing element (30) and of the current element (33). Said securing element (30) can be guided over the fixing element (34) using a flat area (35), while the gas element (32) is arranged in a gas bore hole (37) in the coupling (29) in a sealing manner. The position of the torch body (27) can be freely adjusted by means of a manual rotational movement, said fixing element (34) being guided in a circumferential groove (36) in said securing element (30).

Abstract: The invention relates to a device and a method for contacting a welding wire (13) in a welding torch (10), at least two contact shells (31) having a contact area (32) for contacting the welding wire (13), and to a contact shell (31) for contacting a welding wire (13). 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 (31) have a holding section (48) and are arranged inside a sleeve (37) to define a rotational axis (43), the sleeve (37) being fastened to a nozzle pipe (38) having an integrated pressure mechanism (36), and the pressure mechanism (36) being adapted to exert pressure (33) on the contact shells (31). The sleeve (37) includes a holding device (42) for exerting a counter-force (34) onto the contact shells (31). The welding wire (13) is contacted in the contact area (32) of the contact shells (31) with a contact force (35).

Abstract: A switch-off box for a robot system has a two-part housing and a coupling device resiliently mounted in the housing and connected to a torch body and a hose pack or to a torch handle connected with the hose pack, and having a supporting surface for punctual contact on the housing. There are contacting or switching elements connected to the coupling device. Two oppositely located openings are provided in the housing for connection of the coupling device to the torch body and for connection of the coupling device to the hose pack or the torch handle. The supporting surface is connected with the contacting or switching elements so that a respective contacting or switching element will be activated or deactivated by lifting of the supporting surface from the housing, and a signal will be transmitted from the contacting or switching element to an interfaced control device, or the robot system.

Abstract: The invention relates to a gas nozzle and to a welding torch equipped with the gas nozzle, a nozzle assembly and with a contact tube that have an artificially produced patina layer for the purpose of reducing the adhesion of welding spatters at least on a partial area of the surface thereof. The invention also relates to a cleaning device for welding torches having a brush provided with bristles. These bristles are made of a very soft elastic material, preferably plastic, and abrasive grains are embedded in the bristles.

Abstract: The invention relates to a welding torch with a torch body and a drive unit, for supplying a welding wire, in particular, for differing wire feed speeds, or a forward/backward wire feed and a tube assembly, connected to the torch body at an angle to a mid axis of the welding torch, whereby a wire core, for the welding wire, or the welding wire itself follows a curved course to form a wire buffer store and the amount of the welding wire contained in the wire buffer store can be adjusted by changing the curved course. According to the invention, a welding torch may be produced which is as simple and compact in construction as possible with an improved dynamic property for the wire feed, whereby the wire buffer store is arranged directly after the region of the connection of the tube assembly within the torch body and the tube assembly is arranged at an angle of 33 to 90° to the mid axis of the welding torch.

Abstract: The invention relates to a disconnection box (27) for a robot system, comprising a coupling means (34) which is spring-mounted in a housing (33) and which is connected to a plurality of pipes (23) and a welding torch (10) consisting of a burner body (38) and, optionally, a burner handle (26). The aim of the invention is to provide an autonomous disconnection box (27) which can be used in any particular place or position in said robot system and which is characterized by a highly quick and easy response. According to the invention, the housing (33) consists of two parts (30,31) and the coupling means (34) is embodied in such a way that it can be placed on the housing (33) at certain points.

Abstract: The invention describes an apparatus, in particular a laser hybrid welding head (1) for a laser hybrid welding process, in which a laser (4) or laser optics or an optical focussing unit and elements of a welding torch (5) for an arc welding process and/or a feed device for a welding wire as well as a device for generating a cross jet (8) connected by at least an incoming line (9) and an outgoing line (10) to a compressed air supply system, are mounted on at least one mounting element (2). The incoming line (9) and the outgoing line (10) carrying compressed air for the cross jet (8) are disposed between the two components, in particular the laser (4) and laser optics or the optical focussing unit and the elements of the welding torch (5) or feed device for the welding wire (21).

Abstract: The invention describes an apparatus, in particular a laser hybrid welding head (1) for a laser hybrid welding process, in which a laser (4) or laser optics or an optical focussing unit and elements of a welding torch (5) for an arc welding process and/or a feed device for a welding wire as well as a device for generating a cross jet (8) connected by at least an incoming line (9) and an outgoing line (10) to a compressed air supply system, are mounted on at least one mounting element (2). The incoming line (9) and the outgoing line (10) carrying compressed air for the cross jet (8) are disposed between the two components, in particular the laser (4) and laser optics or the optical focussing unit and the elements of the welding torch (5) or feed device for the welding wire (21).