Angle welding car auxiliary tool and angle welding line welding method

Abstract

The invention relates to the technical field of ship construction, and discloses an angle welding car auxiliary tool. The angle welding car auxiliary tool comprises an extension panel, a fixing deviceand a limiting device; the fixing device is arranged on one surface of the extension panel; the limiting device is arranged on the other surface of the extension panel; and the fixing device is matched with the limiting device for fixing the extension panel on a steel plate to be welded of a ship. Through the scheme, the problems of relatively lower welding efficiency and quality due to incapability of adopting automatic angle welding for the two sides of a traditional angle welding car by about 150-200 mm and need of adopting manual welding or semi-automatic gas shielded welding can be solved. After the angle welding car auxiliary tool is adopted, the angle welding car welding area is increased above 80%, and meanwhile, the welding efficiency and quality are improved.

Description

Technical field [0001] The invention relates to the technical field of ship construction, in particular to a fillet welding trolley auxiliary tooling and a welding method for fillet welds. Background technique [0002] Most of the existing welding work of the fillet welds of the small sub-components of the hull is completed by the automatic fillet welding trolley, and its welding efficiency and welding quality have advantages over the handheld semi-automatic welding method with dioxygen, while reducing the welder’s labor intensity and improving Operating environment. The guide wheel of the trolley is used as a walking guide, and there is no need to re-establish the guide plate or track, and the scope of adaptation is flexible and wide. [0003] However, as figure 1 As shown, the welding torch 2 of the existing fillet welding trolley is generally set in the middle of the trolley. During welding, due to the influence of the shape of the small component, the guide wheel 1 of the trol...

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Problems solved by technology

[0003] However, if figure 1 As shown, the welding torch 2 of the existing fillet welding trolley is generally arranged in the middle of the trolley. During welding, due to the influence of the shape of the small components, the trolley guide wheel 1 cannot be supported at the first and last ends. At the same time, it is affected by the length of the trolley body. As a result, the welding torch cannot ignite and extinguish the arc at the end and end of the weld, and the fillet welds with a length of about 150-200mm on both sides of the weld cannot be welded, that is, there is a blind spot on the weld 3

In order to fully weld the fillet weld, the welder usually uses the hand support method to weld the remaining fillet weld, which requires the welder to be very skilled in the operation of the trolley, and the operation is difficult, and it is difficult for ordinary welders to master

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