數(shù)控專業(yè)畢業(yè)設(shè)計外文翻譯---數(shù)控系統(tǒng)發(fā)展簡史及趨勢-數(shù)控設(shè)計-展示頁
2025-05-27 01:33本頁面
【正文】 ter domainunceasing seepage and the development, the numerical control systemintellectualized degree unceasingly will enhance. (1) applies the adaptive control technology The numerical control system can examine in the process someimportant information, and the automatic control system relatedparameter, achieves the improvement system running status the goal. (2) introduces the expert system instruction processing The skilled worker and expert39。 1965 third generation small scaleintegration electric circuit. To 1970, the general miniputer already appeared and the massproduction. Thereupon transplants it takes the numerical controlsystem the core part, from this time on entered the puter numericalcontrol (CNC) the stage ( which should have the puter in frontof。附 錄 Numerical control system development brief history andtendency In 1946 was born in the world the first electronic accounting machine,this indicated the humanity created has been possible to strengthenand partially to replace the mental labor the tool. It with thehumanity these which in the agriculture, the industry society createdonly is strengthens the physical labor the tool to pare, got up thequantitive leap, entered the information society for the humanity tolay the foundation. After 6 years, namely in 1952, the puter technology applied on theengine bed, were born the first numerical control engine bed in this time on, the traditional engine bed has had the archerytarget change. Since nearly half century, the numerical control systemhas experienced two stages and six generation of development. The early puter operating speed is low, was not big to then scienceputation and the data processing influence, but could not adapt theengine bed realtime control request. The people can not but usenumeral logic circuit Builds Bees an engine bedspecial purpose puter to take the numerical control system, iscalled the hardware connection numerical control (HARDWIRED NC), iscalled for the numerical control (NC). Along with the primary devicedevelopment, this stage has had been through repeatedly threegenerations, namely 1952 first generation of electron tube。 1959secondgeneration transistor。 General Two characters have abbreviated). To 1971, AmericanINTEL Corporation in the world first time the puter two most corespart logic units and the controller, used the large scaleintegrated circuit technology integration on together the chip, calledit the microprocessor (MICROPROCESSOR), also might be called thecentral processing element (to be called CPU). The microprocessor is applied to 1974 to the numerical control is because miniputer function too strong, controlled an enginebed ability to have wealthily (therefore once uses in to control manyengine beds at that time, called it group control), was inferior toused the microprocessor economy to be reasonable. Moreover then smallmachine reliability was not ideal. The early microprocessor speed andthe function although insufficiently are also high, but may solvethrough the multiprocessor structure. Because the microprocessor isthe generalpurpose calculator core part, therefore still was calledthe puter numerical control. To in 1990, PC machine (personal puter, domestic custom had calledmicroputer) the performance has developed the very high stage, maysatisfiedly take the numerical control system core part the numerical control system henceforth entered based on the PC stage. In brief, the puter numerical control stage has also experiencedthree generations. Namely 1970 fourth generation of miniputer。s experience, the processinggeneral rule and the special rule store in the system, take the craftparameter database as the strut, the establishment has the artificialintelligence the expert system. (3) introduces the breakdown to diagnose the expert system (4) intellectualized numera
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