外文翻譯--機床數(shù)控改造淺談-數(shù)控設(shè)計(存儲版)
【正文】 數(shù)控系統(tǒng)發(fā)展簡史及趨勢 1946 年誕生了世界上第一臺電子計算機，這表明人類創(chuàng)造了可增強和部分代替腦力勞動的工具。 、計算機數(shù)控（ CNC）階段（ 1970 年～現(xiàn)在） 到 1970 年，通用小型計算機業(yè)已出現(xiàn)并成批生產(chǎn)。 到了 1990 年， PC 機（個人計算機，國內(nèi)習慣稱微機）的性能已發(fā)展到很高的階段，可以滿足作為數(shù)控系統(tǒng)核心部件的要求。 PC 機所具有的友好的人機界面，將普及到所有的數(shù)控系統(tǒng)。 可以加工出傳統(tǒng)機床加工不出來的曲線、曲面等復雜的零件。 由以上五條派生的好處。 1974 five dynasties microprocessor and 1990 sixth generation (overseas was called PCBASED) based on PC. Also must point out, although overseas already renamed as the puter numerical control (namely CNC), but our country still the custom called the numerical control (NC). Therefore we daily say numerical control, the materially already was refers to puter numerical control. , the numerical control future will develop tendency open style continues to, to develop based on the PC sixth generation of direction Open, the low cost, redundant reliable, the software and hardware resources has which based on PC are rich and so on the characteristic, the more numerical controls serial production factory can step onto this path. Uses PC machine to take at least its front end machine, processes question and so on manmachine contact surface, programming, working correspondence, undertakes the numerical control duty by the original system. PC machine has the friendly manmachine contact surface, will popularize to all numerical controls system. The longdistance munication, the longdistance diagnosis and the service will be more mon. approaches 高速化 and the high accuracy development This is adapts the engine bed to be high speed and the high accuracy direction need to develop. develops to the intellectualized direction Along with the artificial intelligence in the puter domain unceasing seepage and the development, the numerical control system intellectualized degree unceasingly will enhance. (1) applies the adaptive control technology The numerical control system can examine in the process some important information, and the automatic control system related parameter, achieves the improvement system running status the goal. (2) introduces the expert system instruction processing The skilled worker and expert39。 1959 sec
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