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The development level of manufacturing industry directly influcnccs the economy devel of a nation,along with the and network Lechical quick development the manufacturing industry turns to the manufacturing industry from the scale to lower cost and ralscGlobalization and its dynamic state of modern economy rcquest a business enterprise to take,out the beat product by quicest time to satisfy a market The expert puts forward the study and applied of hot poinr in recent years,which are coordinated manufacturing,network For the virtual assembly is an important constitute part of virtual manufacturing,design for assembly al so become a modern CAD develop trend.The thesis discusses the CE and the VE in processing of machining tool. First,we discuss the key technique to the CE and its spread,using the grey system theories to prognosising process quality.Then,constrcting model techology in Desingning is analyzed.based on 3-D dcsigning software Pro/E,we analysed the constructing model to paramer and foature,and also studied the problem of parts,assemblage capability and communication,which realized the simulation movement about taking apart and installing and its interference.Finally,analyse capability and function of the parts model in the virtual assemblyy,use the softwarc of in mechanical engiaeering and reselve the problems of displcacment,velocity,acceleration and power.
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