Assembling method of double-layer bus framework bus body

Abstract

The invention relates to an assembling method of a double-layer bus framework bus body, comprising the following assembling steps: (1) placing a chassis assembly on a level work platform, and welding left and right side walls and a chassis; (2) after the left and right side walls and the chassis are welded, hanging a second layer framework on an internal presetting position of a whole framework, and then, welding the second layer framework and the left and right side walls; (3) welding a top wall framework and correspondingly welding an upper crossbeam rectangular pipe of the top wall framework and a side wall window upright post rectangular pipe when the top framework is welded; (4) welding a front wall framework assembly after the top wall is welded, and welding an air-condition fixing combined frame assembly on a rear section of the whole bus chassis after the front wall framework assembly is welded; and (5) welding the rear wall framework after the air-condition fixing combined frame assembly is welded. The assembling method of a double-layer bus framework bus body can effectively increase the running smoothness of a whole bus and increase the running safety of a double-layer bus.

Description

technical field [0001] The invention relates to an automobile assembly method, in particular to a body assembly method of a double-deck passenger car. Background technique [0002] Double-decker buses are widely used in public transport and sightseeing, and the output is also increasing. At present, the process of assembling double-decker buses is mainly to pre-assemble the chassis frame, then weld the frame and skin, and then buckle the welded frame into one. On the chassis frame and welded connection. In this assembly method, since the skeleton is pre-assembled and welded and then welded and installed with the vehicle frame, there are fewer welding connection points, and the skeleton is not installed and connected with the chassis, so the connection between the skeleton and the chassis is less reliable. And when bumping, the shaking of the vehicle body will be relatively large, which affects the driving stability and safety of the vehicle. Contents of the invention [...

AI Technical Summary

Problems solved by technology

In this assembly method, since the skeleton is pre-assembled and welded and then welded and installed with the vehicle frame, there are fewer welding connection points, and the skeleton is not installed and connected with the chassis, so the connection between the skeleton and the chassis is less reliable. And when bumping, the shaking of the vehicle body will be relatively large, which affects the driving stability and safety of the vehicle.