Double-wire automatic submerged arc welding machine

Abstract

The invention discloses a double-wire automatic submerged arc welding machine, which comprises a machine body and a support, wherein an operation table is arranged on the support in a sliding mode, awelding flux pipe and a welding gun are fixedly arranged on the operation table, and an air cylinder for driving the operation table to move is fixedly arranged on the support; the operation table isprovided with an identification block used for identifying the position of the welding gun in a sliding mode, and a vertically-arranged first spring is fixedly connected between the operation table and the identification block; and a detection rod is arranged on the operation table in a sliding mode in the vertical direction, the detection rod abuts against the welding position of the workpiece, and a transmission assembly for achieving upward ejection of the identification block is arranged between the detection rod and the operation table. By means of the technical scheme, the effect of identifying the position of the welding gun is conveniently achieved, the welding gun is ensured to be controlled to move to the working position, the labor intensity of workers is reduced, and the welding working quality is improved.

Description

technical field [0001] The invention relates to the technical field of steel plate processing equipment, in particular to a double-wire automatic submerged arc welding machine. Background technique [0002] Twin-wire submerged arc welding includes single power supply double-wire and tandem double-arc. Each welding wire of tandem double-arc double-wire is powered by a power supply independently. The dilution rate is close to the characteristics of single-wire submerged arc welding, because the welding speed and welding quality are improved. Among them, submerged arc welding is a method in which the arc burns under the flux layer for welding. Its inherent welding quality is stable, welding productivity is high, The advantages of no arc and smoke and dust make it the main welding method in the manufacture of important steel structures such as pressure vessels, pipe sections, and box girder columns. [0003] The Chinese patent with the patent notification number CN100448587C pr...

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Problems solved by technology

[0004] The above existing technical solutions have the following defects: in the process of welding the workpiece, the position between the welding torch and the workpiece needs to be adjusted. Since the position of the workpiece to be welded is generally located at the joint of the workpiece, it is not convenient for the staff to observe, resulting in the welding torch The position cannot be controlled, which may easily cause damage to the welding torch and affect the accuracy of welding

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