Hybrid Light Bus Drive Axle Assembly 3D Modeling
Abstract
In the process of graduation design ,the driving axle assembly of iveco busbecomes the research object.Aiming at the deficiency of traditional design method of drive axle, the automobile drive axle assembly is designed in 3d by reverse engineering modern design concept.
This paper mainly introduces the reverse engineering of driving axle assembly based on CATIA, which can be divided into five steps: 1) obtain point cloud data by scaning various parts of the driving axle with a 3d laser scanner; 2)improve cloud quality by conducting preliminary repair of point cloud data; 3)closed surface was used to approximate the point cloud model of the drive axle and generate three-dimensional entitiesin CATIA; 4)each component is restrained according to the actual assembly relationship to complete the virtual assembly work in the assembly module; 5) draw 2d engineering drawingsand mark dimensions, tolerances and technical requirements according to production practicein CAD.
Keywords: Reverse engineering; CATIA; Drive Axle Assembly; 3D Modeling；Engineering drawing
