外文翻譯--機(jī)床數(shù)控改造淺談-數(shù)控設(shè)計(jì)-免費(fèi)閱讀
【正文】 1965 third generation small scale integration electric circuit. , puter numerical control (CNC) stage (in 1970 ~ present) To 1970, the general miniputer already appeared and the mass production. Thereupon transplants it takes the numerical control system the core part, from this time on entered the puter numerical control (CNC) the stage (which should have puter in front of the general two characters to abbreviate). To 1971, American INTEL Corporation in the world first time the puter two most cores part logic units and the controller, used the large scale integrated circuit technology integration on together the chip, called it the microprocessor (MICROPROCESSOR), also might be called the central processing element (to be called CPU). The microprocessor is applied to 1974 in the numerical control system. This is because miniputer function too strong, controlled an engine bed ability to have wealthily (therefore once uses in controlling the multi Taiwan engine bed at that time, called it group control), was inferior to used the microprocessor economy to be reasonable. Moreover then small machine reliability was not ideal. The early microprocessor speed and the function although insufficiently are also high, but may solve through the multiprocessor structure. Because the microprocessor is the generalpurpose calculator core part, therefore still was called the puter numerical control. To in 1990, PC machine (personal puter, domestic custom had called microputer) the performance has developed to the very high stage, may satisfiedly take the numerical control system core part the request. The numerical control system henceforth entered based on the PC stage. In brief, the puter numerical control stage has also experienced three generations. Namely 1970 fourth generation of miniputer。 擁有自動(dòng)報(bào)警、自動(dòng)監(jiān)控、自動(dòng)補(bǔ)償?shù)榷喾N自律功能，因而可實(shí)現(xiàn)長(zhǎng)時(shí)間無(wú)人看管加工。 二、機(jī)床數(shù)控化改造的必要性 、微觀看改造的必要性 從微觀上看，數(shù)控機(jī)床比傳統(tǒng)機(jī)床有以下突出的優(yōu)越性，而且這些優(yōu)越性均來(lái)自數(shù)控系統(tǒng)所包含的計(jì)算機(jī)的威力。至少采用 PC 機(jī)作為它的前端機(jī)，來(lái)處理人機(jī)界面、編程、聯(lián)網(wǎng)通信等問(wèn)題，由原有的系統(tǒng)承擔(dān)數(shù)控的任務(wù)。由于微 處理器是通用計(jì)算機(jī)的核心部件，故仍稱為計(jì)算機(jī)數(shù)控。隨著元器件的發(fā)展，這個(gè)階段歷經(jīng)了三代，即 1952 年的第一代 電子管；1959 年的第二代 晶體管； 1965 年的第三代 小規(guī)模集成電路。 機(jī)床數(shù)控改造淺談 一、
畢業(yè)設(shè)計(jì)相關(guān)推薦
鄂ICP備17016276號(hào)-1