Adjustable double wire spacing narrow gap MIG welding torch
A technology of molten electrode gas and shielded welding, which is used in welding equipment, welding accessories, welding rod characteristics, etc., can solve the problems of inability to guarantee side wall fusion, small welding current, insufficient cooling capacity of the welding torch, etc., and achieves good gas shielding effect, good Sidewall fusion, avoiding the effect of S-beads
Active Publication Date: 2020-07-14
SHANGHAI JIAOTONG UNIV
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Problems solved by technology
However, the cooling capacity of this design gas to the welding torch is insufficient, which will easily lead to overheating of the welding torch, and the welding current that the welding torch can withstand is small, and it is impossible to carry out welding operations for a long time
The design of the external gas cover makes it difficult for the gas to be transported to the bottom of the groove when welding large and thick plates, and the protection effect is insufficient
[0006] Patent document CN102476233B (application number: 201010556051.4) discloses a welding torch for MIG / MAG welding with narrow gap twin wires. Adjustment, not universal
[0007] Patent document CN102773596A (application number: 201210255171.X) discloses a narrow-gap double-wire welding torch. The two conductive tips of the welding torch are relatively inwardly inclined so that the two welding wires intersect. Only a single arc is formed between the welding wire and the workpiece, and the energy consumption is reduced. Reduced, but because there is only one arc, sufficient sidewall fusion may not be guaranteed, and the welding torch has a complex structure and high processing costs
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[0066] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0067] According to the present invention, there is provided a gas-shielded welding torch with adjustable double-wire spacing and narrow gap gas shielded welding torch, which includes:
[0068] Welding torch frame 1, welding torch interface 11, double wire spacing adjustment device 3, water-cooled flat torch body 18, outer gas cover and its lifting mechanism;
[0069] The double-wire spacing adjusting device 3 , the flat torch body 18 , the conductive device, the outer air cover and its lifting mechanis...
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The invention provides a double-welding-wire-interval-adjustable narrow-clearance consumable electrode gas protection welding gun. The double-welding-wire-interval-adjustable narrow-clearance consumable electrode gas protection welding gun comprises a welding gun frame (1), a welding gun connector (11), a double-welding-wire-interval adjusting device (3), a water-cooling flat gun body (18), an outer gas shield and a lifting mechanism; and the double-welding-wire-interval adjusting device (3), the flat gun body (18), an electricity-conductive device, the outer gas shield and the lifting mechanism are separately connected with the welding gun frame (1). According to the double-welding-wire-interval-adjustable narrow-clearance consumable electrode gas protection welding gun, a water-cooling mode is adopted by the flat-structured gun body; the surface of the gun body is not electrified, so that the gun body can extend into a narrow-clearance groove to convey protection gas, welding wires,electricity and the like to the bottom of the groove; meanwhile, arcing between the gun body and a side wall is not caused; and stability of the welding process is ensured.
Description
technical field [0001] The invention relates to the field of welding technology, in particular to a gas-shielded gas welding torch with adjustable double-wire spacing and a narrow gap. Background technique [0002] With the rapid development of industrial manufacturing technology, the manufacture of large-scale welded structures is increasing day by day, and the welding of thick plates is becoming more and more extensive. Compared with the traditional welding technology, the narrow gap welding technology has obvious advantages in terms of welding energy consumption, welding efficiency, and welding quality, which determines that it has a good application prospect in the welding and manufacturing of thick plate structures. . [0003] Compared with the traditional welding technology, the advantages of the narrow gap welding technology in the welding of thick plate structures are mainly as follows: 1) The narrow gap groove reduces the cross-sectional area of the weld, which c...
Claims
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IPC IPC(8): B23K9/28B23K9/173B23K9/32
Inventor唐新华刘国强张轲芦凤桂崔海超
OwnerSHANGHAI JIAOTONG UNIV