An auxiliary device for carbon arc gouging of flat welds

Abstract

The invention discloses an auxiliary device for flat weld joint carbon arc air gouging and a use method thereof. The auxiliary device comprises a bracket for supporting a carbon arc air gouging torch and traveling wheels on the two sides of the brackets, wherein the bracket comprises a piece of supporting transverse steel and two pieces of vertical flat steel connected with the supporting transverse steel; the traveling wheels are arranged at the two ends of the supporting transverse steel; the upper ends of the two pieces of vertical flat steel are provided with mounting holes; a piece of round steel with external thread is connected with the two pieces of vertical flat steel through the mounting holes; one end of the round steel is provided with a pin cap, and the other end of the round steel is fixed through a fastening nut. According to the auxiliary device for flat weld joint carbon arc air gouging, the center of a gouging groove is overlapped with the center of a weld joint, so that the width and the depth of the gouging groove along the length of the entire weld joint are uniform, the influence of a non-uniform carbon gouging weld joint on the welding quality is effectively reduced, meanwhile, the working intensity of the carbon gouging workers can be reduced and the labor productivity is improved.

Description

technical field [0001] The invention relates to an auxiliary tool for welding, in particular to an auxiliary device for carbon arc gouging of flat weld seams. Background technique [0002] Carbon arc gouging is a method of surface machining grooves that use carbon rods or graphite rods as electrodes to generate electric arcs with the workpiece to melt the metal and blow off the molten metal with compressed air. In welding production, it is mainly used for grooving, eliminating weld defects and back rooting. It is understood that various shipbuilding companies generally use manual carbon arc gouging when removing weld defects or welding seam roots. A carbon planer needs to carbon planer to straighten the back of the weld seam for several hundred meters a day. When carbon planers perform manual carbon planing operations, due to operational reasons, it often occurs that the planing speed is too fast or the carbon rod is fed too fast to cause sticky carbon in the weld. In addi...

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Problems solved by technology

When carbon planers perform manual carbon planing operations, due to operational reasons, it often occurs that the planing speed is too fast or the carbon rod is fed too fast to cause sticky carbon in the weld seam

In addition, uneven up and down fluctuations when the carbon rod moves are also likely to cause inconsistency in the depth and width of the grooving and the deviation of the centerline of the weld seam. If the groove of the planer is too large or too deep, more filler metal is required during welding. Thereby increasing the number of weld bead layers and welding cost, and it is easy to cause welding deformation; if the groove of the planer is too small, it will be difficult for the molten pool to melt out smoothly during welding, which will increase the probability of welding defects and affect the quality of welding

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