| In recent years, virtual assembly technology has been attended deeply by the academia and industrial yield.The vivid and virtual environment was created by computer. Using the virtual environment,we can simulate and analyse the assembly process of products and predict the assembly performance of products.This technology is not only advantageous to the concurrent engineering,but also can shorten the development cycle of products,reduce the cost and improve their competitiveness in the market.Currently, the research about the virtual assembly technology is focused on the interaction technology between virtual devices and virtual environment, but not the study of virtual assembly system interface. The study of virtual assembly system interface design is so great important. A good or not man-machine interface is directly related to the practical performance of the virtual assembly system. At first, according to the shortages of the virtual assembly technology, this paper discusses the assembly method about overlapping the ADCS (Assembly Datum Coordinate System). And then, according to this method, this paper presents a detailed design scheme of virtual assembly system interface by the actual demand. This interface can solve the shortage that the current virtual assembly system interface is too simple. By observing the multiple views of the system interface, users can more clearly understand the whole process of assembly, the assembly relation of the models and the dynamic information in the assembly process.First, this paper introduced the division of the multiple view by using Visual C++development tools, realized the synchronous displaying of the virtual assembly process, assembly information and the assembly relation. Through applying the OpenGL relevant mapping functions and combining with the sky box technology method, this paper realized the construction of the virtual scene. It provided a realistic virtual environment for this virtual assembly system. In order to observing the assembly process through the main, left, down, right, back, bottom views,this paper realized the function of the virtual scene views switching.Second, this article also discussed the assembly relation of each model combining with the tree view, and introduced the dynamic display method of assembly process information. Then, through the research of the principle of the menu and button design, the interface added some menus and buttons including following functions:importing the OBJ models, rotation and translation, switching the view. Finally, in order to optimizing the system interface, we desinged the toolbars, status bar, scroll bars and right-click shortcut menus for the whole interface and it was more practical, humanistic and beautiful. |