Welding tool for aircraft auxiliary oil tank shell body annular welding seam

Abstract

The invention belongs to a welding technology and relates to a welding tool for an aircraft auxiliary oil tank shell body annular welding seam. The welding tool is characterized by being composed of a connecting plate (1), a floating plate (2), a left bracket (3), a right bracket (4), a fine adjustment plate (5), a fine adjustment rod assembly (6), two guide wheel assemblies (8), four outer guide column assemblies (9), four inner guide column assemblies (10), two clamping plates (11) and a welding gun fixing pressing plate assembly (13). According to the provided welding tool for the aircraft auxiliary oil tank shell body annular welding seam, the relative distance between the welding tool and a workpiece can be adjusted in real time during welding, electric arcs are stabilized, the incomplete welding defect, or the burn-through defect and other welding defects are overcome, and the qualification rate of the welded workpiece is increased.

Description

technical field [0001] The invention belongs to the welding technology, and relates to a welding tool for the annular weld seam of an aircraft auxiliary fuel tank shell. Background technique [0002] At present, when welding the annular girth weld of the auxiliary fuel tank shell of the aircraft with an automatic welding machine, a welding torch is adopted to fix and weld the auxiliary fuel tank shell by rotation. Its defect is that the position of the welding torch is fixed, and the relative distance from the auxiliary fuel tank shell cannot be adjusted in real time during welding. Due to the thin material and poor rigidity of the aircraft auxiliary fuel tank shell, there are large errors in roundness and coaxiality. see Figure 5 . As a result, the relative distance between the welding torch and the auxiliary fuel tank shell is constantly changing during welding, resulting in unstable arc, easy to form welding defects such as impenetrable welding or burn-through, and redu...

AI Technical Summary

Problems solved by technology

Its defect is that the position of the welding torch is fixed, and the relative distance from the auxiliary fuel tank shell cannot be adjusted in real time during welding. Due to the thin material and poor rigidity of the aircraft auxiliary fuel tank shell, there are large errors in roundness and coaxiality. see Figure 5

As a result, the relative distance between the welding torch and the auxiliary fuel tank shell is constantly changing during welding, resulting in unstable arc, easy to form welding defects such as impenetrable welding or burn-through, and reducing the qualified rate of weldments

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