Automatic welding device of curved plate

Abstract

The invention discloses an automatic welding device of a curved plate, comprising a roller base, a rotary assembly jig, a drive unit, a welding trolley and a control system, wherein, the roller base is composed of a base, four axle bases, a support roller and a sprocket wheel, the axle bases are arranged on four corners of the base, and the support roller and the sprocket wheel are axially arranged on a support shaft; the rotary assembly jig is composed of a welding platform and circular arc tracks, wherein, the two circular arc tracks are arranged on the bottom of the welding platform in parallel, and a roller chain is arranged along the circular arc tracks; the drive unit is composed of a servo motor, a reduction box and a transmission shaft, wherein, the reduction box drives the sprocket wheel by the transmission shaft; the welding trolley is arranged on the curved plate; the control system is composed of a monitoring tracker and a programmable controller; and the welding platform is tangent to the outer diameter of the support roller of the base by the two circular arc tracks, and the sprocket wheel is meshed with the roller chain. The automatic welding device can ensure that a bent segmented welding line still keeps in a horizontal status in the welding process to automatically weld the curved panel, obviously improve the welding quality of a boat deck and effectively improve the production efficiency of shipbuilding industry.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to an automatic curved plate welding device for butt welds of curved outer plates of ships, fillet welds of strong ribs and curved plates. Background technique [0002] In hull construction, welding is a quality critical and supporting technique. Research and development of mechanized and automated high-efficiency curved plate welding technology is an effective technical approach to improve shipbuilding quality and production efficiency. The welding methods currently used are: manual arc welding, submerged arc automatic welding, CO 2 Gas shielded arc welding, etc. Among them, automatic submerged arc welding is the most widely used mechanized welding method in shipbuilding. Taking the MZ-1000 DC submerged arc welding machine as an example, the welding machine mainly includes welding power supply, welding trolley, trolley track, etc. . When working, the welding trolley walks on th...

AI Technical Summary

Problems solved by technology

However, the problem is that, due to the restriction of the working principle of submerged arc automatic welding, this method is only applied to the segmented manufacturing line where the plate is flat, that is, it is suitable for long straight welds on the horizontal plane, and the plate is curved. The curved segment, that is, the weld is a curve that is not in the plane, and the shape is irregular, and the curvature is a curved weld. At present, it can only be welded by manual methods.

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