Irregular tank body circular seam automatic welding machine

Abstract

The invention relates to a tank body automatic welding machine, in particular to an irregular tank body circular seam automatic welding machine. The tank body automatic welding machine comprises a machine frame, a welding gun assembly arranged on the machine frame and a wire sending mechanism for sending welding wires for the welding gun assembly. The machine frame comprises a left support frame, a right support frame and two beams, wherein two ends of the beams are respectively fixed on the tops of the two support frames. The irregular tank body circular seam automatic welding machine further comprises a welding gun horizontally moving mechanism used for driving the welding gun assembly to move horizontally reciprocally and a welding gun lifting mechanism for driving the welding gun assembly to move longitudinally and reciprocally. The lower end of the welding gun lifting mechanism is provided with a welding gun automatic adjusting mechanism, horizontal rails are respectively arranged below the two lower support frames, walking mechanisms for driving the whole automatic welding machine to move reciprocally are respectively arranged at the bottoms of the two support frames. The irregular tank body circular seam automatic welding machine is small in workload, low in energy consumption, stable in welding quality, capable of saving a large amount of spaces, and suitable for circular seam welding of carbon steel tanks, stainless steel tanks, aluminum tanks and other tanks of various materials.

Description

technical field [0001] The invention relates to an automatic welding device for tank bodies, in particular to an automatic welding machine for circular seams of special-shaped tank bodies. Background technique [0002] In the prior art, the automatic circular seam welding machine for special-shaped tanks mainly includes a frame, a welding torch assembly mounted on the frame, and a wire feeding mechanism for feeding welding wire to the welding torch assembly. The frame includes two left and right brackets and two beams on the top, and the brackets include an upper bracket and a lower bracket butted together. When performing girth welding of special-shaped tanks, two positioners are usually used to clamp the tank body from both ends of the tank body, and the two positioners control the 360° axis rotation of the tank body synchronously, and then adjust the automatic The welding torch assembly of the welding machine corresponds to the girth seam on the tank body, and the girth ...

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Problems solved by technology

[0003] The existing defects of the existing special-shaped tank circular seam automatic welding machine are: 1. In the process of using the special-shaped tank circular seam automatic welding machine to weld the special-shaped tank circular seam, due to the height of the rotating tank surface Therefore, the welding torch assembly should be adjusted up and down automatically with the change of the surface height of the tank body. The existing automatic welding machine realizes the up and down adjustment of the welding torch assembly by lifting the beam on the top of the frame. The workload is large, the energy consumption is high, and the welding quality is unstable; 2. After

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