Xiaolei Chen, Jun Wu, Liping Wang and Guoqin Gao
Conveyor, parallel mechanism, optimum design, dynamic load-carrying capacity, energy
Based on parallel mechanisms, a parallel conveyor for the pre- treatment and electrocoating of vehicle bodies is presented and the optimum design is investigated by taking maximum dynamic load-carrying capacity (DLCC), consumed energy and conditioning performance into account. The dynamic model is derived by using the principle of virtual work. The internal force distribution is studied to obtain the maximum DLCC. An expression for energy in a single trajectory has been deļ¬ned to evaluate the power drive. The optimum design is performed based on the performance indices subject to a set of appropriate mechanical constraints. An opti- mum design case is given to illustrate the method. This paper is useful for the design of parallel conveyors for the pretreatment and electrocoating of vehicle bodies.
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