Parametric Design Of Hydraulic Cylinder And Secondary Development Of Standard Parts Library

Parameterized design system and standard parts library for cylinder used for hydraulicsupport──the research object in this thesis, could be realized in the environment of CATIAwhich being a three-dimensional engineering design software, which is on the base of parametric technology and secondary development of CATIA.This paper illuminates the performance and several methods of secondary development of CATIA in detail. Besides, parametric design principle, its key technology and parametric design methods of parts modeling based on knowledge engineering are researched. In VB6.0 circumstance, parameterized design of three-dimensional parts of hydraulic cylinder have been implemented. The designer only needs to modify parameters to complete parametric design of various parts. And this system improves the level of automation of hydraulic cylinder design greatly.The implementing method of the parametric design of the whole product is put forward in this article. Based on the method, the work procedure is given. And then, the parameterized design of the series product's whole engine has been accomplished on the basis of parts's parameterized design, by developeding friendly man-machine interface. Thus, series hydraulic cylinder can be automatically assembled by virtual assembly and second development interface in CATIA.Due to a large number of standard parts being used repeatedly in the process of hydraulic support designing, its standard parts library have been establishmented based on CATIA V5R16 in this thesis. This library has been input to actual application, it can shorten the development cycle of products greatly, reduce duplicate work in design process and improve design efficiency largely. It is of practical significance to improving the competitive competence of the corporation.