Double-decker multiple unit base frame, base frame assembly position-fixing device and base frame assembly position-fixing method

Abstract

The invention discloses a double-decker multiple unit base frame, a base frame assembly position-fixing device and a base frame assembly position-fixing method, and belongs to the technical field of high-speed railway vehicle manufacturing. The double-decker multiple unit base frame comprises two end base frames, two partition walls, a floor for connecting the two partition walls, two edge beams for connecting the two end base frames, and transition connecting structures for connecting the partition walls and the end base frames, wherein one side of each of the transition connecting structuresis fixedly connected to the corresponding end base frame in an inserted manner, and the other side thereof is fixedly connected to the corresponding partition wall in a lap joint manner, so that themodularization of the end base frames and the partition walls is achieved. The base frame assembly position-fixing device comprises a platform, wherein the platform is provided with two supporting mechanisms, two assembling mechanisms, a plurality of supporting and clamping mechanisms, four position-fixing devices capable of forming a rectangle, and supporting and pressing mechanisms for connecting the partition walls and the transition connecting structures. The double-decker multiple unit base frame, the base frame assembly position-fixing device and the base frame assembly position-fixing method have the beneficial effects of reducing the assembling difficulty of the base frame, shortening the manufacturing period of base frame assembly, and improving the production efficiency.

Description

technical field [0001] The invention relates to the technical field of manufacturing high-speed rail vehicles, in particular to a double-layer EMU underframe, an underframe composite positioning device and a positioning method thereof. Background technique [0002] At present, the double-deck EMU is a new type of EMU developed to meet the needs of large passenger flow in urban rail transit and trunk railways. It has the characteristics of large transportation volume, fast speed, safety and reliability; [0003] In the prior art, in order to ensure the space requirements of double-deck EMUs, the underframe of double-deck EMUs adopts a horizontal design structure, and the end underframes, partition walls, and horizontal floors are plug-in structures. figure 1 As shown, one end of the partition wall is inserted into the end chassis, and the other end is inserted into the floor. Due to the wide width of the vehicle body, it is difficult to assemble the partition wall, the end ch...

AI Technical Summary

Problems solved by technology

[0004] Using the original serial manufacturing process method and tooling to synthesize the double-layer EMU underframe of Fuxing, Harmony and other single-layer EMU plane underframes, the synthetic manufacturing cycle is long and the production efficiency is low, which can no longer meet the requirements of double-layer EMUs. Chassis Manufacturing Requirements

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