Research On The Theory & Application Of Design For Tolerancing About Cam Mechanism

In the recent years, there have been great breakthrough and compelling achievements in the fields of CIMS and CAD/CAM. The development of Computer-Aided Tolerancing(CAT), however, lags highly behind that of CAD/CAM as important part of machinery design and manufacture process. In view of this case, the author has done the following research work.● In this paper, we discuss the theory of Design For Tolerancing (DFT). The traditional thinking of design is form-to-function process. In a dynamic architecture, a multi-level approach called Design For Tolerancing(DFT), has been proposed to help the designers to make tolerance-related decisions from the conceptual design to detailed design. On the base of anlysis of the traditional tolerancing design, we expound the theory of DFT on system ground.● we also discuss the way of tolerance analsys and synthesis. And we upbuild the tolerance- processing cost and tolerance-cost of quality loss models; we can use Simulated Annealing method to optimize these models.● On the base of the model we have upbuild,we develop a software about tolerancing design of cam mechanism. This software has a brief interface and can be used with facility ; and it can help designer obtain the process and process tolerance of the part directly.