數(shù)控機(jī)床中英文翻譯資料-數(shù)控設(shè)計-文庫吧
2025-04-17 01:25 本頁面
【正文】 。（二進(jìn)制代碼系統(tǒng)使用 0 和 1）。復(fù)雜零件的編程需要非常專業(yè)的人員。隨著繼續(xù)的發(fā)展和提煉， 60年代初期數(shù)字控制機(jī)器在工業(yè)中變得更加普通。數(shù)字控制機(jī)器廣泛接受，它們變得更加功能強(qiáng)大和容易使用。 直到大約 1976年這些機(jī)器被稱作 NC（數(shù)字控制）機(jī)器。 1976年 CNC (計算機(jī)數(shù)字控制 )機(jī)器出現(xiàn)了。這些控制機(jī)器 使用微處理器給了他們額外的功能。他們也以外存儲為特色。代表性的 NCs每次讀取一步程序（塊）并執(zhí)行它；然而， CNC機(jī)床能夠存儲整個程序。 20 世紀(jì) 70和 80年代后期計算機(jī)技術(shù)的改善使數(shù)控機(jī)床的價格跌到一個很多制造公司不能再沒有它們的水平。 HISTORY OF NUMERICAL CONTROL Anyone working in the machine tool field cannot ignore the influence of the puter in manufacturing. The capabilities that these machine tools have given to the industry have forced managers and owners of panies to update their thinking to stay petitive. The inherent accuracy and repeatability of these machine tools have helped quality process tools such as statistical process control gain a foothold in machine shops. EVOLUTION OF THE NC/CNC MACHINE Numerical control is nothing new. As early as 1808 weaving machines used metal cards with holes punched in them to control the pattern of the cloth being produced. Each needle on the machine was controlled by the presence or absence of a hole on the punched cards. The cards were the program for the machine. If the cards were changed, the pattern changed. The players piano is also an example of numerical control. The player piano uses a roll of paper with holes punched in it. The presence or absence of a hole determined if that note was played. Air was used to sense whether a hole was present. The invention of the puter was one of the turning points in numerical control. In 1943 the first puter, called ENIAC (Electronic Numerical Integrator and Computer) was built. The ENIAC puter was very large. It occupied more than 1500 square feet and used approximately 18,000 vacuum tubes to do its calculations. The heat generated by the vacuum tubes was a constant problem. The puter
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