Welding tool for depressed center flat car center sill assembly

Abstract

The invention discloses a welding tool for a depressed center flat car center sill assembly, and belongs to the technical field of mechanical welding process equipment. The welding tool for the depressed center flat car center sill assembly comprises an I-shaped beam bottom frame, box bodies are fixedly connected above the two ends of the I-shaped beam bottom frame, a plurality of first adjustable positioning platforms are fixedly connected above the I-shaped beam bottom frame and the box bodies, and a second adjustable positioning platform is fixedly connected above one end of each box body; a to-be-welded depressed center flat car center sill is fixed above the first adjustable positioning platforms and the second adjustable positioning platforms, a plurality of overturning clamps are fixedly connected to the side surface of each box body, each overturning clamp comprises an overturning caliper, an inserting groove and a clamping strip, the overturning calipers are movably connected with the inserting grooves, and the overturning calipers are fixedly connected with the clamping strips. The welding tool can guarantee accurate welding clamping and positioning and firm clamping, control welding deformation and accurately control the position precision of a welded finished product, is convenient to operate, and greatly improves the working efficiency.

Description

technical field [0001] The invention relates to a welding tool for forming a middle beam of a flat car with a concave bottom, and belongs to the technical field of mechanical welding process equipment. Background technique [0002] The middle beam of the concave-bottom flat car is an important load-bearing part of the concave-bottom flat car. The length of the middle beam of the concave-bottom flat car is more than ten meters. It is tilted, and the corners of the bottom surface and the top surface are arc transitions, and the bottom surface and the top surface are used as installation planes, and the position accuracy is required to be high. At the same time, the center beam is the main load-bearing part of the concave bottom flat car. Due to the large span, the overall strength of the center beam is high, so the welding quality of the center beam is required to be high. [0003] Because the overall length of the center beam of the flat car with concave bottom is super long...

AI Technical Summary

Problems solved by technology

If the bottom plate is irregularly deformed after welding, it will not be able to butt well with the side of the side plate, and the butt joint gap will have an enlarged effect in the length direction, and the thickness and width of the center beam steel plate are large, which basically cannot be corrected. High requirements, but the existing tooling cannot meet the welding requirements of the middle beam of the concave bottom flat car, and there are problems such as inaccurate positioning, weak clamping, and easy deformation of welding

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