Mig/mag welding torch body, tig welding torch body, mig/mag welding torch handle, and mig/mag welding torch comprising such a mig/mag welding torch body and mig/mag welding torch handle

Patent metadata

Field	Value
Publication number	US-2021339331-A1
Application number	US-201917273815-A
Country	US
Kind code	A1
Filing date	Sep 5, 2019
Priority date	Sep 6, 2018
Publication date	Nov 4, 2021
Grant date	—

Abstract

A MIG/MAG welding torch body includes a second channel, which is arranged coaxially to the central channel, and a further third channel, which is arranged coaxially to the second channel, wherein a connection is provided between the second channel and the third channel. The first channel has an orifice in the center of the receiving part, the second channel has an orifice on the lateral side of the receiving part, and the third channel has an orifice on the lateral side of the receiving part.

First claim

1 - 15 . (canceled)

16 . A MIG/MAG welding torch body ( 2 ), comprising:
a pipe bend ( 3 ); a contact nozzle ( 4 ) for contacting and guiding a consumable welding wire ( 5 ); a gas nozzle ( 6 ); and an essentially cylindrical plug element ( 7 ), which is arranged at the pipe bend ( 3 ), for the detachable connection to a corresponding receiving part ( 9 ) of a MIG/MAG welding torch handle ( 8 ), said plug element ( 7 ) having an inlet opening ( 19 ) for the protective gas (G), and a gas channel ( 10 ), which is connected to the inlet opening ( 19 ), for guiding the protective gas (G) to the gas nozzle ( 6 ) and simultaneously for guiding the welding wire ( 5 ), and which is formed for transferring a welding current (I) to the contact nozzle ( 4 ); wherein the inlet opening ( 19 ) is arranged essentially centrally at the distal end ( 11 ) of the plug element ( 7 ); wherein the plug element ( 7 ) is formed for the plug connection to the receiving part ( 9 ) of the MIG/MAG welding torch handle ( 8 ), and has a torch closure ( 12 ), which is formed for the fixation to the receiving part ( 9 ) of the MIG/MAG welding torch handle ( 8 ), so as to be rotatable preferably by 180°; and wherein a connection channel ( 13 ), which is formed by means of a circumferential channel ( 20 ), which is spaced apart from the distal end ( 11 ) of the plug element ( 7 ), and which, when the MIG/MAG welding torch handle ( 8 ) is connected, is formed for connecting two orifices ( 38 , 39 ) of channels ( 34 , 35 ) for guiding a cooling medium (K) arranged on the lateral side in the receiving part ( 9 ) of the MIG/MAG welding torch handle ( 8 ), is arranged at the plug element ( 7 ) on the lateral side.

17 . A MIG/MAG welding torch body ( 2 ), comprising:
a pipe bend ( 3 ); a contact nozzle ( 4 ) for contacting and guiding a consumable welding wire ( 5 ); a gas nozzle ( 6 ); and an essentially cylindrical plug element ( 7 ), which is arranged at the pipe bend ( 3 ), for the detachable connection to a corresponding receiving part ( 9 ) of a MIG/MAG welding torch handle ( 8 ), said plug element ( 7 ) having an inlet opening ( 19 ) for the protective gas (G), and a gas channel ( 10 ), which is connected to the inlet opening ( 19 ), for guiding the protective gas (G) to the gas nozzle ( 6 ) and simultaneously for guiding the welding wire ( 5 ), and which is formed for transferring a welding current (I) to the contact nozzle ( 4 ); wherein the inlet opening ( 19 ) is arranged essentially centrally at the distal end ( 11 ) of the plug element ( 7 ); wherein the plug element ( 7 ) is formed for the plug connection to the receiving part ( 9 ) of the MIG/MAG welding torch handle ( 8 ), and has a torch closure ( 12 ), which is formed for the fixation to the receiving part ( 9 ) of the MIG/MAG welding torch handle ( 8 ), so as to be rotatable preferably by 180°; and wherein a connection channel ( 13 ) is arranged at the plug element ( 7 ) on the lateral side, said connection channel ( 13 ) being formed by means of a channel ( 17 ) for feeding the cooling medium (K), and a channel ( 18 ) for returning the cooling medium (K), wherein the channel ( 17 ) for feeding the cooling medium (K) opens out in an inlet opening ( 16 ), which is arranged at the plug element ( 7 ) on the lateral side, and the channel ( 18 ) for returning the cooling medium (K) opens out in a return opening ( 21 ), which is arranged at the plug element ( 7 ) on the lateral side, and said connection channel ( 13 ), when the MIG/MAG welding torch handle ( 8 ) is connected, is formed for connecting two orifices ( 38 , 39 ) of channels ( 34 , 35 ) for guiding a cooling medium (K) arranged on the lateral side in the receiving part ( 9 ) of the MIG/MAG welding torch handle ( 8 ).

18 . The MIG/MAG welding torch body ( 2 ) according to claim 16 , wherein the torch closure ( 12 ) is formed so as to be rotatable by 180°.

19 . The MIG/MAG welding torch body ( 2 ) according to claim 16 , wherein the torch closure ( 12 ) is formed in an essentially tubular manner and has fixing elements ( 22 ) on the outer side, which cooperate with fixing elements ( 23 ) of a complementary design at the receiving part ( 9 ) of the MIG/MAG welding torch handle ( 8 ).

20 . The MIG/MAG welding torch body ( 2 ) according to claim 16 , wherein the plug element ( 7 ) is made of metal, in particular brass, and the torch closure ( 12 ) is made of plastic.

21 . A TIG welding torch body ( 2 ′), comprising:
a torch neck ( 41 );
an electrode holder ( 42 ) for receiving a non-consumable welding electrode ( 40 );
a gas nozzle ( 6 ); and
an essentially cylindrical plug element ( 7 ), which is arranged in the torch neck ( 41 ), for the detachable connection to a corresponding receiving part ( 9 ) of a TIG welding torch handle ( 8 ′), and comprising a means ( 49 ) for feeding a consumable welding wire ( 5 ), said plug element ( 7 ) having an inlet opening ( 19 ) for the protective gas (G), and a gas channel ( 10 ), which is connected to the inlet opening ( 19 ), for guiding the protective gas (G) to the gas nozzle ( 6 ) and simultaneously for guiding the welding wire ( 5 ), and which is formed for transferring a welding current (I) to the electrode holder ( 42 );
wherein the inlet opening ( 19 ) is arranged essentially centrally at the distal end ( 11 ) of the plug element ( 7 );
wherein the plug element ( 7 ) is formed for the plug connection to the receiving part ( 9 ) of the TIG welding torch handle ( 8 ′), and has a torch closure ( 12 ), which is formed for the fixation to the receiving part ( 9 ) of the TIG welding torch handle ( 8 ′), so as to be rotatable preferably by 180°;
wherein a connection channel ( 13 ), which is formed by means of a circumferential channel ( 20 ), which is spaced apart from the distal end ( 11 ) of the plug element ( 7 ), is arranged on the lateral side at the plug element ( 7 ), or the connection channel ( 13 ) is formed by means of a channel ( 17 ) for feeding the cooling medium (K), and a channel ( 18 ) for returning the cooling medium (K); and
wherein the channel ( 17 ) for feeding the cooling medium (K) opens out in an inlet opening ( 16 ), which is arranged at the plug element ( 7 ) on the lateral side, and the channel ( 18 ) for returning the cooling medium (K) opens out in a return opening ( 21 ), which is arranged at the plug element ( 7 ) on the lateral side, and the connection channel ( 13 ), when the TIG welding torch handle ( 8 ′) is connected, is formed for connecting two orifices ( 38 , 39 ) of channels ( 34 , 35 ) for guiding a cooling medium (K) arranged on the lateral side in the receiving part ( 9 ) of the TIG welding torch handle ( 8 ′).

22 . A MIG/MAG welding torch handle ( 8 ), comprising:
a current transmission element ( 32 ); a central channel ( 33 ); and a receiving part ( 9 ) for the detachable connection to an essentially cylindrical plug element ( 7 ) of a MIG/MAG welding torch body ( 2 ); wherein a second channel ( 34 ), which is arranged coaxially to the central channel ( 33 ), and a further third channel ( 35 ), which is arranged coaxially to the second channel ( 34 ), is provided; and wherein a connection ( 36 ) is provided between second channel ( 34 ) and third channel ( 35 ), and the first channel ( 33 ) has an orifice ( 37 ) in the center of the receiving part ( 9 ), the second channel ( 34 ) has an orifice ( 38 ) on the lateral side of the receiving part ( 9 ), and the third channel ( 35 ) has an orifice ( 39 ) on the lateral side of the receiving part ( 9 ).

23 . The MIG/MAG welding torch handle ( 8 ) according to claim 22 , wherein at least one sealing element ( 43 , 44 ) for sealing at least one channel ( 33 , 34 , 35 ) is provided.

Assignees

• Fronius Int Gmbh

Inventors

• Preundler David
• Oberndorfer Klaus
• Preundler Anton

Classifications

• B23K9/291 Primary

  the shielding means being a gas · CPC title

• B23K9/285

  Cooled electrode holders · CPC title

• B23K9/323 Primary

  Combined coupling means, e.g. gas, electricity, water or the like · CPC title

• B23K9/123

  Serving also as contacting devices supplying welding current to an electrode · CPC title

• B23K9/295

  using consumable wire electrodes · CPC title