Study On Variant Design Method Of Working Device Of Loader Based On Modular

Along with the rapid development of global economy,market competition become more and more drastic, and demand of user to product has become diversified and characteristic, manufacturing enterprises have to satisfy the user's demand with lowest cost and least due date. Therefore, rapid response customer design technology for products is great importance for enterprises to improve their innovation ability and market competition. As the wheel loader modularized and variant design method, the theory and key technology of modularized, variant design on the wheel loader are studied in this dissertation, and developed variant design system on working device.In this thesis, modularized design theory was utilized to analyze the function of wheel loader and module partition based on functional analysis, and functional flow pattern, and the actual condition of the product. Meanwhile, according to the result of module partition, the structure of next order modules of the working device was analyzed to determine which module should be variant designed.The parameters of module which need to be variant designed were analyzed to determine the main characteristic, extended characteristic and inherent characteristic. At the same time, part information model and the size of relation model between parts of variant module were analyzed. The variant theory and variant process and variant method of assembly product were studied. The mating graph was used to describe the matching relation between parts of assembly product. The variant model of assembly product was founded and the SML technology was used to derive rapidly new product from master model of assembly product.Developed variant design system of working device in Pro/Engineer by means of the object-oriented development tool VC++6.0 and the basic database SQL Sever 2000 and re-development technology, which apply an excellent computer design system for working device.The system will improve design efficiency and quality of working device, bring tremendous economy benefits, reducing working intensity and make designer devote more time to research new product.