Roof mounting process for rail vehicle body and explorator device

Abstract

The invention relates to a roof mounting process of a rail vehicle body and an explorator device. The roof mounting process comprises the following steps of S1, four roof joists are fixedly connected to an erection reference plane of the profiling device through bolts to form a quadrilateral general frame; S2, the pre-assembled roof joists and an explorator fall into a vehicle body main structure together; S3, the roof joists and the vehicle body main structure are welded, connected and fixed; S4, after welding, the explorator is detached from the roof joists; and S5, the roof falls into the installed roof joists, and the roof and the roof joists are fixedly connected through bolts. The roof can be rapidly and accurately installed, the operation efficiency can be improved, and the operation cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle manufacturing, and in particular relates to a roof installation process and a profiling device for a rail vehicle body. Background technique [0002] The steel structure of the rail vehicle body includes the underframe, side walls, end walls and roof. The roof generally adopts the overall structure of aluminum profiles. Form the main structure of the car body together, and then install the roof as a whole on the top of the main structure of the car body. [0003] In order to fix the roof, a square frame-shaped roof joist is installed on the top of the main structure of the car body. The roof joist and the main structure of the car body are fixedly connected by welding. The roof of the rail vehicle body is fastened by bolts. It is fixedly installed on the roof joist in a fixed way to complete the fixed installation between the roof and the main structure of the car body. [0004] In order to...

AI Technical Summary

Problems solved by technology

[0006] The roof joist generally adopts a four-sided frame structure formed by two sets of 8200mm and two sets of 1800mm strip structures. The overall size of the roof joist is relatively large, and the accuracy requirements for installation are also high. Positioning, the installation accuracy is difficult to guarantee

Moreover, the roof joist is connected to the main structure of the car body by welding, and the welding deformation leads to deviations in the relative dimensions of the overall flatness, diagonal, and mounting holes of the roof joist after welding, which further causes the mounting holes on the roof side beam to be damaged. It does not correspond to the mounting holes on the roof, so that the roof cannot be installed on the roof side beams, which greatly increases the difficulty and time of work, increases the cost of work, and also reduces the work efficiency

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