A device and method for measuring center offset of fish-belly submerged arc welding seam in the middle beam of flat car

Abstract

The invention relates to a device and method for measuring the center bias of a fish-bellied submerged arc weld of a center sill of a flatcar. The device comprises a vertical plate I, a horizontal plate and a detection plate which are integrally formed, wherein the vertical plate and the detection plate are positioned at the two ends of the horizontal plate to form a knife handle shape convenient to held; an isosceles trapezoidal boss is arranged at the lower end of the inner side of the vertical plate; the detection plate comprises a transverse plate, an oblique plate, a vertical plate II, a scale plate and a straight plate which are connected end to end and integrally formed; the horizontal plate is connected to one end, connected with the straight plate, of the transverse plate; the vertical plate I, the horizontal plate and the straight plate define a clamping groove; the scale plate is horizontally arranged, an isosceles trapezoidal groove is formed in the scale plate, and millimeter graduation is marked on the horizontal edge of the upper end of the groove to serve as a scale. The device can be widely applied to measurement of the center bias of the fish-bellied submerged arc weld of the center sill of the flatcar.

Description

Technical field [0001] The invention relates to a device and a method for measuring the center offset of a submerged arc welding seam, in particular to a device and a method for measuring the center offset of the fish belly submerged arc welding of a flat car beam. Background technique [0002] The container flat car is a special railway car for loading containers. The shared flat car is a dual-purpose car for transporting large cargo or containers. The two types of vehicles occupy a dominant position in China's railway transportation. They are often opened in the form of special trains. The production plants basically have mass production qualifications. [0003] The flat car structure, that is, the car body structure has only the underframe, without end walls and side walls, and the entire load is borne by the underframe. The underframe is mainly formed by welding the middle beam, side beams, end beams and various transverse beams. The middle beam structure is generally H-shaped...

AI Technical Summary

Problems solved by technology

However, since the welding seam has covered the assembly seam after welding, and there is no special detection ruler for detecting the offset of the weld center at present, the offset of the center of the submerged arc welding seam relative to the center of the seam hard to measure

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