數(shù)控機床中英文翻譯資料-數(shù)控設計-資料下載頁
2025-05-12 01:25本頁面
【導讀】在機床領(lǐng)域工作的任何人都不能忽視計算機對制造業(yè)的影響。力強迫公司經(jīng)理和所有者更新他們的思想來保持競爭力。這些機床的固有準確性和反復性已。經(jīng)幫助了質(zhì)量過程工具例如統(tǒng)計過程控制在金工車間獲得立足處。數(shù)字控制其實不是什么新東西。早在1808年織機裝入帶孔的金屬卡片控制所生產(chǎn)布料。機器的每根針由裝入的卡上孔的有無來控制。片，樣式也跟著改變。自動鋼琴也是數(shù)字控制的例子。決定音符是否被演奏?？諝獗挥糜诟袘资欠翊嬖凇?943年，稱作ENIAC(電子數(shù)字積分器和計算。機)的第一臺計算機被制成。它占地超過1500平方英尺并使用大約18,000根真空管運算。真空管發(fā)熱成為一個困擾的問題。另外，計算機重達數(shù)。噸并非常難于編程。計算機技術(shù)領(lǐng)域真正的轉(zhuǎn)折點是1948年晶體管的發(fā)明。晶體管是真空管的替換品。體積小，便宜，可靠，耗能少，并且發(fā)熱低。真空管的完美取代品。集成電路實際是芯片上的控制電路。1951年MIT被授予開發(fā)控制機器的主要合同。不能再沒有它們的水平。
【正文】 el, it was a threeaxis vertical spindle milling machine. The machine control used vacuum tubes. One of the first attempts at making programming easier for people was called APT (Automatically Programmed Tool) Symbolic Language. APT, invented in 1954, used Englishlike symbolic language to produce a program that the machine tool could understand. Remember, a machine needs the geometry of the part and machining instructions such as speeds, feeds, and coolant to operate. APT made it easier for people to write these programs, which were then translated to a program that the machine could understand. In 1955 the Air Force awarded $35million in contracts to manufacture numerical control machines. The first numerically controlled machine tools were very bulky. The machine control was vacuumtube operated and needed a separate puter to generate its binary tape codes. (Binary coding systems use 1s and 0s). Programming plex parts took highly specialized people. Developments and refinements continued, and by the early 1960snumerical control machines became much more mon in industry. As the acceptance of numerical control machines grew, they became easier to use and more powerful. Up until about 1976 these machines were called NC (numerical control) machines. In 1976 CNC (puter numerical control) machines were produced. These machine controls used microprocessors to give them additional capability. They also featured additional memory. The NCs typically read one short program step (block) at a time and executed it。 however, CNC machines could store whole programs. Improvements in puter technology in the late 1970s and 1980s brought the cost of numerical control machines down to a level where most manufacturing panies cannot afford to be without them.
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