The NC programming for complex components has lots drawbacks such as excessive repetitious labors,heavy work- load and lack of optimixation,which are especially serious in NC programming for complex components of mari...The NC programming for complex components has lots drawbacks such as excessive repetitious labors,heavy work- load and lack of optimixation,which are especially serious in NC programming for complex components of marine diesel.Based on the key technologies of applying KBE(Knowledge Based Engineering)to NC programming——knowledge representation,general- ized knowledge base,knowledge acquisition and knowledge reasoning,the system of intelligent NC programming for complex com- ponents of marine diesel has been built by means of the knowledge template and the UG/Open.The experiment results indicate that the NC program generated with high efficiency of NC programming by the system is accurate enough to meet the need of NC ma- chining.Consequently,the automatization and intelligentization of NC programming has been presented,and the study is proved to be a successful attempt in the area of applying KBE to NC programming.展开更多
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...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.展开更多
基金Funded by University natural science fund of Jiangsu(Grant No.2005JD016J),Open fund of shipping advanced manufacturing key laboratory of Jiangsu province.
文摘The NC programming for complex components has lots drawbacks such as excessive repetitious labors,heavy work- load and lack of optimixation,which are especially serious in NC programming for complex components of marine diesel.Based on the key technologies of applying KBE(Knowledge Based Engineering)to NC programming——knowledge representation,general- ized knowledge base,knowledge acquisition and knowledge reasoning,the system of intelligent NC programming for complex com- ponents of marine diesel has been built by means of the knowledge template and the UG/Open.The experiment results indicate that the NC program generated with high efficiency of NC programming by the system is accurate enough to meet the need of NC ma- chining.Consequently,the automatization and intelligentization of NC programming has been presented,and the study is proved to be a successful attempt in the area of applying KBE to NC programming.
基金National Natural Science Foundation of China (No.50875243)Natural Science Foundation of Zhejiang Province,China (No.Y1110100)
文摘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.
