Automatic straight seam welding machine

Abstract

The invention relates to the technical field of welding machines, in particular to an automatic straight seam welding machine. The automatic straight seam welding machine comprises a locating clamping device installed at the lower part of a working table and a straight seam welding device installed at the upper part of the working table. The straight seam welding device comprises a spot welding arc striking part, a welding seam locating part and a submerged-arc welding part. The working table is provided with a transverse moving device, which can move along a welding seam, corresponding to the straight seam welding device. The spot welding arc striking part, the welding seam locating part and the submerged-arc welding part are fixed on the transverse moving device respectively. A machine frame is provided with an automatic feeding device horizontally and movably. The automatic feeding device is arranged below the locating clamping device. An accessory device for driving the spot welding arc striking part and the submerged-arc welding part is arranged beside the machine frame. The automatic straight seam welding machine is provided with an automatic control system corresponding to the locating clamping device, the straight seam welding device, the transverse moving device and the automatic feeding device. The automatic straight seam welding machine disclosed by the invention has the advantages of high automation degree, good welding quality, convenience for operation and high working efficiency.

Description

technical field [0001] The invention relates to the technical field of welding machines, in particular to an automatic straight seam welding machine. Background technique [0002] As a main equipment for welding metal sheets, straight seam welding machines are playing an increasingly important role, especially for cylindrical workpieces rolled by plate rolling machines. [0003] In the process of using the traditional straight seam welding machine to weld the sheet metal such as the cylindrical workpiece after being rolled by the plate rolling machine, in order to avoid the deformation of the weld due to thermal expansion during the welding process, the above-mentioned plate Before the material is welded, the operator needs to manually spot-weld the arc-starting plate to ensure the stability of the weld. This method has defects such as low work efficiency and unstable spot welding quality; in addition, due to the The width of the weld will have a serious impact on the weldi...

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Problems solved by technology

[0003] In the process of using the traditional straight seam welding machine to weld the sheet metal such as the cylindrical workpiece after being rolled by the plate rolling machine, in order to avoid the deformation of the weld due to thermal expansion during the welding process, the above-mentioned plate Before the material is welded, the operator needs to manually spot-weld the arc-starting plate to ensure the stability of the weld. This method has defects such as low work efficiency and unstable spot welding quality; in addition, due to the The width of the welding seam will have a serious impact on the welding quality. Traditional straight seam welding machines generally use manual methods to determine the width of the welding seam. This method has defects such as difficulty in ensuring the width of the welding seam and unstable welding quality.

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