UML Modeling and Parametric Design for Cross Shaft Universal Coupling CAD System

摘要

In order to realize rapid custom design for crossshaft universal coupling products, enterprises need aparametric CAD system. On the basis of analyzing itsfunctional requirements, this paper proposed the overallfunctional framework of cross shaft universal coupling CADsystem, which mainly includes user management, productdrawing, product design, document management andtechnical interface functional modules, etc. Based on UMLmodeling method, analyzed its use cases models, key classdiagrams and activity diagrams of the CAD system. Then,by using Visual Basic 6.0 ActiveX Automation technologyand SQL Server database technology, a parametric CADsoftware for cross shaft universal coupling was successfullydeveloped, which has been used in enterprise’s design. Itsapplication shows that the parametric CAD software isconvenient to operate, and can rapidly realize parametricdesign of cross shaft universal coupling parts, so it helps toreduce the labor intensity of designers, and improve thequality and efficiency of design.