Research On The Technique Of Virtual Assembling Of Speed Reducer Based On VRML

Assemble-design is the important link for product-design. It can make great effect on varied respect of the product, including its cost, quality and time to market. Virtual assembly is an important part of virtual manufacture technique. It has very important research value for being a kind of brand-new thought or method to the technique of assembling designing at present. This paper has researched about the system structure and key technology of virtual assembly, Including respects of three-dimensional modeling, virtual environment, assembling planned, optimization and evaluation etc. In addition, more deep research is carried out on the technology of collision detection in assembling plan. On this basis, by the use of virtual reality modeling language VRML, combining with advanced programming language Java, we set up a virtual environment for assemblage, and establish the colliding object within VRML to realize the function of collide-checked using object-oriented method by JavaScript. Under virtual environment that we established, user can make interactive operation on assemble target in real-time. That is: We can choose the part assemble sequence from the storehouse, and can adjust the assembly path and posture of assembling parts according to environment around and information of colliding. We have finished the process of virtual assembly with the example of speed reducer finally.