基于UG的飞机工装标准件库技术的研究与实现

无锡职业技术学院毕业设计ABSTRACTAircraft tooling standard part library of CAD is significant to improve efficiencyand quality of aircraft tooling design,shorten the design cycle.At present,aircrafttooling design efficiency is influenced seriously due to incomplete aircraft toolingstandard part library,irregular library files,lacking effective methods of librarybuilding,library management and library usage.In order to solve these problems,some correlative technologies of aircraft tooling standard part library are studied,anda system of aircraft tooling standard part library is developed according to therequirement of a large aeronautics manufacturing enterprise,which is collaboratedwith Nanjing University of Aeronautics and Astronautics.The aircraft toolingstandard part library technologies,such as standard part building technology,standardpart managing technology and standard part library selecting technology are studied.The main jobs of this paper are as followed:1)A technology of part library building based on double-table driving isproposed.By using the middle controller,the data in the double-table is arrayed andcombined automatically according to the rule of parameter mapping,then thecomplete parameter table is created.Compared with other part library building tools,the efficiency and quality of creating standard part library are improved greatly.2)The data and information style of aircraft tooling standard part library aredesigned.The managing rules of aircraft tooling standard part library are created,including limits of authority,expansion of standard part,modification of part data anddeletion of standard part.Therefore,the standard part library can be well managedand preserved.3)A double search and preview methods of standard part selected is proposed.With the help of 3D and 2D pictures,standard part is searched first,then thespecification is selected,and the standard part is saved to current aircraft tooling pathin the form of flow.Hence,the search and select efficiency is improved conspicuously.The aircraft tooling standard part library style of files and information is designed.4)A system of aircraft tooling standard part library is developed base on theabove study.The system is made up of standard part library creating model,standardpart library managing model and standard part library searching and using model.This system can satisfy the requirement of completion of standard part data anddynamic expansion of standard part library.The system is used to design aircrafttooling in a large aeronautics manufacturing enterprise,which can function well.Key Word:CAD,Tooling,Standard Parts Library,Double-Table Driving,UG