Plug part and socket part for detachably connecting a pipe elbow of a water-cooled welding torch and connecting device

摘要

The invention relates to a plug part (21) for detachable connecting a torch neck (19) of a water-cooled welding torch (7) to a socket part (34) arranged on a hose package (20), having a cylindrical pipe element (22) with an axially running channel (23) for a welding wire (9) and a protective gas (5) and having at least two cooling channels (29, 30) for supplying and returning a cooling fluid, and a union nut (24) rotatably arranged on the pipe element (22), the union nut having an internal thread for connection to a mating external thread on the socket part (34), the invention further relating to such a socket part (34). In order to produce an optimal connection between the torch neck (19) and the hose package (20), a flange (25) having at least one receiving opening for receiving a pin-like element (36) of the socket part (34) is arranged on the pipe element (22) of the plug part (21) in order to fix at least one angular position of the torch neck (19).

主权项

1. A plug part (21) for detachably connecting a torch neck (19) of a water-cooled welding torch (7) to a socket part (34) arranged on a hose package (20) if need be by interconnecting a torch housing (7′), the plug part comprising:
a cylindrical pipe element (22) with an axially running channel (23) for a welding wire (9) and a protective gas (5), at least two cooling channels (29, 30) for supplying and returning a cooling fluid, and a union nut (24) rotatably arranged on the pipe element (22), said union nut (24) having an internal thread for connection to a mating external thread on the socket part (34), wherein the orifice (46) of the at least one cooling channel (29) for supplying the cooling fluid and the orifice (46′) of the at least one cooling channel (30) for returning the cooling fluid are arranged separately, wherein the orifice (46) of the one cooling channel (29) is arranged on the outside of the cylindrical pipe element (22) and the orifice (46′) of the other cooling channel (30) is arranged on the inside of the cylindrical pipe element (22).