中文摘要：

In order to realize the parametric design of the conjugate cam weft insertion mechanism,according to the necessary parameters of weft insertion process,ideal kinematic curves of the weft insertion mechanism were given,and the mathematical model of reverse solution for this mechanism was established.The parameters of this mechanism were obtained by reverse solution on the basis of the given ideal kinematic curves and kinematic requirements.The parametric design platform which was integrated with the functions of parametric reverse solution,motion simulation,three-dimensional modeling and virtual assembly was developed based on VB.NET and Unigraphics(UG) NX.After entering the technological parameters of weft insertion process and essential structural parameters by users,three-dimensional drawing of the main parts such as the conjugate cam and shaft,can be obtained by this platform,also the processing data of the cam can be calculated.This platform provides a rapid approach for parametric design of weft insertion mechanism.

英文摘要：

In order to realize the parametric design of the conjugate cam weft insertion mechanism, according to the necessary parameters of weft insertion process, ideal kinematic curves of the weft insertion mechanism were given, and the mathematical model of reverse solution for this mechanism was established. The parameters of this mechanism were obtained by reverse solution on the basis of the given ideal kinematic curves and kinematic requirements. The parametric design platform which was integrated with the functions of parametric reverse solution, motion simulation, three-dimensional modeling and virtual assembly was developed based on VB. NET and Unigraphics （UG） NX. After entering the technological parameters of weft insertion process and essential structural parameters by users, three-dimensional drawing of the main parts such as the conjugate cam and shaft, can be obtained by this platform, also the processing data of the cam can be calculated. This platform provides a rapid approach for parametric design of weft insertion mechanism.