Apparatus, systems, and/or methods for providing welding systems or portions of welding systems that provide a tip-retention device that is configured to direct gas radially towards a contact tip.

The present disclosure relates to a welding torch having a clasp (300) that couples a protective sleeve (150) to a welding torch through a strain relief (200). The protective sleeve (150) encloses a welding cable assembly. The strain relief (200) encircles a portion of the protective sleeve (150). The protective sleeve (150) is further fitted over a ball swivel that is coupled to a handle (38) of the welding torch. The clasp (300) clamps over the strain relief (200), protective sleeve (150), and ball swivel to securely couple the protective sleeve (150) to the welding torch.

Some examples of the present disclosure relate to a cover cap for a welding torch. The cover cap is attached to a housing of the welding torch and rotatable between a closed position, where the cover cap covers an access port of the welding torch, and an open position, where the cover cap does not cover the access port. The welding torch may have welding components within the handle that may be accessed through the access port when the cover cap is in the open position. A cap holder may be used to hold the cover cap in the open position.

The present invention concerns a joined connection and a joining method for welding torch components with a first metallic tubular segment and a second metallic tubular segment, which are joined to each other by plastic deformation via an interlocking connection. The problem which the invention proposes to solve is to indicate a joined connection as well as a joining method in which two metallic welding torch components can be joined without the use of thermal joining methods, yet with comparable quality. The problem is solved in that the interlocking is formed in at least two directions of the joining surface bordering one another.

A system for a welding apparatus including a welding cup; a hollow tubular adapter body extending longitudinally from a first end to a second end, an external surface of the adapter body defining one or more grooves extending about a circumference thereof and longitudinally disposed between the first and second end; and one or more O-rings configured to be installed about the adapter body and received in each of the one or more grooves; wherein the first end or the second end of the adapter body is engageable with a welding torch head and wherein the welding cup is configured to receive the other of the first end and the second end of the adapter body therein, the welding cup extending longitudinally along the adapter body such that the one or more O-rings is disposed between the adapter body and the welding cup.

A nozzle assembly for a welding torch is disclosed. The nozzle assembly comprises a nozzle, a contact tip, and a gas diffuser assembly. The gas diffuser assembly comprises a gas diffuser, coupled to an insulator. The gas diffuser is also coupled to a gooseneck and the contact tip. The nozzle is coupled to the gas diffuser assembly, such that the contact tip is retained within the nozzle. The nozzle and gas diffuser assembly further include complementary engagement features to couple the nozzle to the gas diffuser assembly. The nozzle also includes a spatter deflector configured to deflect or block spatter from obstructing gas holes of the gas diffuser assembly.

A device for welding pipe branches and extensions to a main pipe from inside the main pipe. The device includes a frame (30) and a frame cylinder (31), an elongated electrode shaft (3) having a longitudinal central axis, around which the electrode shaft is rotatably arranged, a rotator disc (13) of the electrode shaft (3), through which the electrode shaft is able to slide axially, an electrode holder (4) in the end of the electrode shaft, an electrode (5) fastened to the holder (4), a welding jig (1, 1.2, 1.3; 2.3, 2.4, 2.5) for supporting the main pipe (6.1; 2.2a) in the welding station, a fastening element (8, 8a) of the welding jig, a rotating element (9) of the welding jig, to which the fastening element is fastened and which is rotatably bearing-mounted inside the frame cylinder (31) such that the rotational axis of the welding jig combines with the central axis of the electrode shaft. The welding jig has a support bracket (1.2, 1.3; 2.4, 2.5) for the main pipe (6.1; 2.2a), by which the main pipe is to be supported in the station, in which the centre axes of the main pipe (6.1; 2.2a) and the electrode shaft (3) are combined. The welding jig has, surrounding the electrode shaft (3), an adapter piece (23), to which is connected a shielding gas channel (24), the shielding gas being adapted to be guided through the adapter piece (23), into the main pipe, and through it, also into the pipe branch or extension to be welded, when the main pipe, or the pipe extension (6.3) to be welded to the main pipe, or the shielding gas pipe (2.3) surrounding the main pipe rests against the adapter piece (23). The rotator disc (13) of the electrode shaft is equipped with a locking device (12), with which the electrode shaft (3) is to be immovably locked in relation to the rotator disc (13).

Apparatus, systems, and/or methods for providing welding systems or portions of welding systems that provide a tip-retention device that is configured to direct gas radially towards a contact tip.

An example conversion apparatus for a welding torch includes: an insulator configured to be mechanically coupled to a first component of a welding torch, to insulate the first component from a first contact tip, and to guide shielding gas through a bore of the insulator, wherein the first component is configured to be in electrical contact with a second contact tip; and a contact tip holder configured to be attached to the welding torch via the insulator, to hold the first contact tip, to conduct welding current to the first contact tip, and to receive the shielding gas from the insulator.

A welding device according to some embodiments includes a rotary table fixing two irregular shaped plates which are overlapped, a torch unit including a welding torch positioned to face outer peripheral edges of the two irregular shaped plates fixed to the rotary table, a torch actuator configured to move the welding torch toward and away from the outer peripheral edges, an after-shielding part mounted to the welding torch on downstream side in a rotational direction of the rotary table and having nozzles arranged along the rotational direction, configured to jet shielding gas to the outer peripheral edges, and including a first nozzle positioned upstream and a second nozzle positioned downstream of the first nozzle in the rotational direction, and a controller configured to control an orientation of the nozzle in a direction of decreasing a shielding-gas-jetting distance between the second nozzle and the outer peripheral edges welded by the welding torch.