Research And Development Of Drill Fixture Virtual Assembly Based On Virtools

Assembly is one of the most influential link in product development activities. Virtual assembly makes use of a virtual reality technology and CAD technology and simulates a virtual assembly environment,which has intuitionistic 3d visualized interface, clearly expresss design concept product and gets rid of real sample dependence. Using the virtual assembly system, design personnels can arly detect problem of assembly and modify model through to analysis, evaluation and modification of the virtual model, finally complete the design of productt directly observed assembly dynamic process.This thesis firstly analyzes the characteristics and development of the virtual assembly, and based on this.Then this paper takes vertical shaft rotary indexing drilling fixture as the research object and expounds the fixture assembly planning. This article also researches some softwares of system development and puts forward for assembly modeling technology, assembly process planning, interference detection on the key technology. At last with "detachable can be installed" as the basic principle as the basic principle, the article achieves fixture virtual assembly.through in-depth study.This system has been successfully completed fixture virtual assembly demo.The item builds the assembly models by UG, renders optimizates models by 3Dmax. Finally using the Virtools development platform, with the aid of the BBS behavior interactive module edit corresponding script to achieve fixture human-computer interaction. According to the main interface simple operating instructions, when operating personnel clicks assembly demo button, fixture can automatic disassembly, and divided into rapidly assembly and slow assembly; when he clicks on the virtual assembly button,the system can realize the grouping of assembly, use fixture view of switching, parts was towed in proper position when it can automatically fusion, thus gradually completing the parts of a single assembly until all the assembly of success. Believe this system has a auxiliary role for future experiment teaching.