Box-structure submerged arc and gas-shielded dual-purpose welding machine of thin wire

Abstract

The invention discloses a box-structure submerged arc and gas-shielded dual-purpose welding machine of a thin wire. A door-shaped frame is adopted, and a welding mechanism fixed on a stand is arranged in the door-shaped frame in manner of bilateral symmetry; the welding mechanism comprises a horizontal guide roller arranged at the outer side of a box piece to be welded, a longitudinal guide roller arranged on the top of the box piece to be welded and a welding gun clamp arranged on a roller support; a welding gun clamped in the welding gun clamp faces a welding groove formed between a box piece pectoral plate and a box piece wing plate. The welding machine is characterized in that the outer side of the box piece wing plate is provided with a solder baffle which can abut against the box piece wing plate; the upper edge of the solder baffle is higher than the box piece pectoral plate; the welding gun is a replaceable submerged arc welding gun or a gas-shielded welding gun clamped in the welding gun clamp; a welding wire transport mechanism, a solder conveyor bucket and a shielding gas source are respectively assorted with the submerged arc welding gun and the gas-shielded welding gun. The invention enables the welding machine to select different welding modes of submerged arc or gas shield according to plate thickness, groove depth and angle, thereby ensuring the welding quality.

Description

technical field [0001] The invention relates to an automatic welding machine, in particular to an automatic walking filament submerged arc and gas protection dual-purpose welding machine with welding working conditions. Background technique [0002] Gas-shielded welding machines are widely used in the welding of box-type structures, and they use gas-shielded welding. However, the gas shielded welding method is difficult for the welding torch to reach the root of the groove when the plate is thick and the groove is deep, resulting in insufficient gas protection, which easily produces a large number of pores and affects the quality of the weld. Therefore, the existing gas shielded welding machine can only be adapted to welding thinner plates and shallower groove forms, and is not suitable for the production and manufacture of heavy steel structures. Contents of the invention [0003] In order to avoid the shortcomings of the above-mentioned prior art, the present invention ...

AI Technical Summary

Problems solved by technology

However, the gas shielded welding method is difficult for the welding torch to reach the root of the groove when the plate is thick and the groove is deep, resulting in insufficient gas protection, which easily produces a large number of pores and affects the quality of the weld

Therefore, the existing gas shielded welding machines can only be adapted to welding thinner plates and shallower groove forms, and are not suitable for the production and manufacture of heavy steel structures.

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