Welding tool for monorail vehicle chassis assembly

Abstract

The invention provides a welding tool for a monorail vehicle chassis assembly. The tool comprises a one-dimensional end welding frame, a middle portion welding frame and a two-dimensional end weldingframe. The one-dimensional end welding frame comprises a bottom surface supporting frame, a longitudinal beam, cross beams, a one-dimensional end limiting block and a center stay wire device, and theone-dimensional end limiting block and the center stay wire device are arranged on the cross beam at the forefront end. The middle portion welding frame comprises a bottom surface supporting frame, longitudinal beams, cross beams and a vehicle body side supporting limiting block, and the vehicle body side supporting limiting block is fixed to the bottom surface supporting frame and located on theside, close to the one-dimensional end welding frame, of the vehicle body side supporting limiting block; the longitudinal beams are provided with T-shaped groove guide rails, side beam limiting blocks and side beam pressing devices, and cross beam limiting blocks are arranged on the T-shaped groove guide rails. The two-dimensional end welding frame comprises a bottom surface supporting frame, a longitudinal beam, cross beams, a side beam side limiting block and a two-dimensional end limiting block, and the two-dimensional end limiting block is arranged on the cross beam at the tail end. The tool can be smoothly and easily demolded, and the requirements for forward installing positioning and reverse installing positioning can be simultaneously met.

Description

technical field [0001] The invention relates to a monorail car bottom frame assembly welding tool. Background technique [0002] Compared with the double-track vehicles of the traditional light rail system, monorail vehicles have many advantages such as light weight, small track volume, small turning radius, low noise, and better integration into the urban environment. Transport connections provide new options. [0003] Different from traditional double-track vehicles, the underframe skeleton of monorail vehicles is mainly composed of one-dimensional end-end underframe assembly, two-dimensional end-end underframe assembly, side beams on both sides, beams and other parts, and the end underframe assembly The composition also includes the front beam, the left side body support, the right side body support, the rear beam and other parts. The main material of the underframe of the monorail car is carbon steel, which is riveted with aluminum alloy side walls and roof after assem...

AI Technical Summary

Problems solved by technology

[0004] However, the one-dimensional end and two-dimensional end of the monorail vehicle chassis are special-shaped parts, and they have difficulties such as large volume, high positioning accuracy requirements, and large welding deformation caused by large welding volume.

The positioning of components, welding deformation and other factors will inevitably make it difficult to demold the chassis after welding, and excessive disassembly and positioning will cause positioning failure and low production efficiency

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