Study On Controlled Five-bar Linkages Realizing Tract

Controlled mechanisms is a new powerful subject. It is engendered with the developing of modem science and combined modern computer technique,control technique,sensor technique and other modem science and technology with old mechanisms. It is also engendered with the demand of high accuracy and high flexibility for modem machine. Professor Jianyi Kong proposed the new conception of mechanisms in the beginning of 1990's. In last teen years, it has been developing rapidly and dramatically. Most of literatures about it are still on theory and research on experiment to study it is extremely urgent.Based on this opinion, we design and manufacture experimental platform of controlled plate five-bar linkages realizing accurate and variable tract. We hope experiment of it can test result on theory. On the other hand, it can also improve development on theory and provide valuble experience for later mechanical industry .In this paper, we firstly study the five-bar linkages' type. Based on this, we conclude mathematics of movable condition of five-bar linkages' type we choose. This offers gist for analysis and synthesis of five-bar linkages. Second, the paper introduces the design of experimental platform of controlled plate five-bar linkages realizing tract. Then introduces some tests and conclusions on experimental platform. Finally, we study the accuracy of five-bar linkages realizing tract, conclude the ordinary expression of it by differential approach and analyse it quantificationlly by statistics means through computer programs. That can help us establish theory base for application of controlled five-bar linkages.