Welding device for structural steel with variable cross sections

Abstract

A welding device for structural steel with variable cross sections comprises a base, a portal frame arranged on the base in a sliding mode, and a crossbeam which is arranged on the portal frame and can ascend and descend. The welding device further comprises a welding frame. The crossbeam is provided with a moving plate which is provided with an air cylinder. A piston rod of the air cylinder is connected with a floating frame which is in pivoted connection with the welding frame. The welding frame is provided with a lateral guide wheel. Moreover, the welding device comprises a driving plate with a transverse movement driving device. The driving device is connected with the moving plate through an elastic device. The moving plate is provided with a first sensing block and a second sensing block. The driving plate is provided with a first position sensor for sensing the position of the first sensing block and a second position sensor for sensing the position of the second sensing block. Vertical wheel rails are arranged on the two sides of the portal frame. Guide wheel frames are arranged at the two ends of the crossbeam. The guide wheel frame of at least one end of the crossbeam is elastically and movably connected with the crossbeam. Guide wheels are arranged on the guide wheel frames. The welding device can conduct automatic tracking according to changes of the cross sections of the structural steel, thereby realizing the purpose of conducting welding by tracking weld joints and achieving an accurate welding effect.

Description

technical field [0001] The invention relates to a variable section steel welding device. Background technique [0002] The existing section steel welding device only has the function of adjusting the position of the welding torch, but it cannot track the position of the welding torch according to the change of the section shape of the section steel, so it is difficult to achieve the effect of precise welding, and it is also difficult to adapt to the variable section (the cross section is not regular, But change) welding of section steel. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the existing section steel welding device, the present invention provides a variable section section steel welding device, which can actively adjust the welding torch according to the change of the section shape of the section steel so as to achieve the effect of tracking the weld seam. [0004] The technical solution of the present invention to so...

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Problems solved by technology

[0002] The existing section steel welding device only has the function of adjusting the position of the welding torch, but it cannot track the position of the welding torch according to the change of the section shape of the section steel, so it is difficult to achieve the effect of precise welding, and it is also difficult to adapt to the variable section (the cross section is not regular, but change) Welding of section steel

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