Automatic horizontal position welding device for circular arc groove welds of elbow made of steel plate

Abstract

The invention discloses an automatic horizontal position welding device for circular arc groove welds of an elbow made of a steel plate, comprising a working platform, a trolley positioning, rotating and traveling mechanism and a welding gun positioning mechanism; wherein the working platform is provided with a trapezoidal groove and a V-shaped sizing block; the trolley positioning, rotating and traveling mechanism comprises a central shaft, a connecting rod rotating shaft, a connecting rod, a connecting rod upright column connecting piece, a trolley upright column and a traveling trolley; the welding gun positioning mechanism comprises a rack upright tube, a cross connected pipe fitting, a rack connecting piece, a guide plate, a check block, a guiding axle, a box-type slide block, a spring, a supporting frame, a cross sliding plate, a horizontal slide block and a welding gun chuck, wherein a welding gun is fixed to the welding gun chuck. The device has the advantages of simple structure, easiness for manufacture, convenience for operation, adjustable welding speed, stable running, good welding quality and capability of realization of multi-layered and multiple automatic horizontal position welding for the circular arc groove welds inside and outside the elbow and realization of welding tasks of groove welds of various specifications of elbows with different diameters from small diameter of about 400mm to large diameter of about1420mm.

Description

technical field [0001] The invention belongs to the technical field of automatic horizontal welding devices, in particular to an automatic horizontal welding device for arc groove welds of steel plate elbows. Background technique [0002] The elbow manufacturer cuts the remaining material of the stamped elbow after stamping, cuts out the required groove, and then enters the welding process for assembly and welding. At present, elbow manufacturers mainly use electrode manual welding, manual semi-automatic gas shielded welding horizontal welding or downhill welding and uphill welding for the elbow arc groove weld after grouping. In manual welding, the welder holds electric welding pliers or welding torches to weld the stationary elbow groove. This method is labor-intensive, the welding quality is not stable enough, and the welding production efficiency is very low. It is not suitable for large-scale and efficient production. Because the elbow weld is arc-shaped, the welder ne...

AI Technical Summary

Problems solved by technology

In manual welding, the welder holds electric welding pliers or welding torches to weld the stationary elbow groove. This method is labor-intensive, the welding quality is not stable enough, and the welding production efficiency is very low. It is not suitable for large-scale and efficient production.

Because the elbow weld is arc-shaped, the welder needs to concentrate on observing the weld trajectory during the manual welding process, and adjust the distance and posture between the welding torch and the elbow groove in real time. The welding quality depends on the welder's personal technical proficiency Guaranteed, it is greatly affected by human factors, which increases the labor intensity of the welder's operation, also causes unstable welding quality, and lower overall production efficiency

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