機床的數(shù)控改造

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2、外文資料翻譯 1 機床數(shù)控改造 一、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。它與人類在農(nóng)業(yè)、工業(yè)社會中創(chuàng)造的那些只是增強體力勞動的工具相比，起了質(zhì)的飛躍，為人類進入信息社會奠定了基礎(chǔ)。 6 年后，即在1952 年，計算機技術(shù)應(yīng)用到了機床上，在美國誕生了第一臺數(shù)控機床。從此，傳統(tǒng)機床產(chǎn)生了質(zhì)的變化。近半個世紀以來，數(shù)控系統(tǒng)經(jīng)歷了兩個階段和六代的發(fā)展。 控（ 段（ 1952 1970 年） 早期計算機的運算速度低，對當時的科學計算和數(shù)據(jù)處理影響還不大， 但不。

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4、外文資料翻譯1機床數(shù)控改造一、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。它與人類在農(nóng)業(yè)、工業(yè)社會中創(chuàng)造的那些只是增強體力勞動的工具相比，起了質(zhì)的飛躍，為人類進入信息社會奠定了基礎(chǔ)。6 年后，即在 1952 年，計算機技術(shù)應(yīng)用到了機床上，在美國誕生了第一臺數(shù)控機床。從此，傳統(tǒng)機床產(chǎn)生了質(zhì)的變化。近半個世紀以來，數(shù)控系統(tǒng)經(jīng)歷了兩個階段和六代的發(fā)展。1.1、數(shù)控（NC）階段（19521970 年）早期計算機的運算速度低，對當時的科學計算和數(shù)據(jù)處理影響還不大，但。

5、數(shù)控機床改造研究為了我國民營企業(yè)的生存與發(fā)展,提高數(shù)控機床的速度是必要的。轉(zhuǎn)型所需的設(shè)備一般數(shù)控機床,包括傳統(tǒng)和最近從國外引進的一個問題,由于不能放入機床設(shè)備和生產(chǎn)線。首先,數(shù)控機床和生產(chǎn)線改造的主要內(nèi)容為:(1)恢復原有的功能、機床、生產(chǎn)線有一些故障診斷和恢復;(2),NC-based 一般機床設(shè)備或添加加數(shù)顯著數(shù)控系統(tǒng);(3)改造,提高精度、效率和自動化程度,機械,電氣部件的改造、機械部分的維護過程中,才能恢復到最初的辨識精度,不能滿足生產(chǎn)要求的數(shù)控系統(tǒng)被更新到最新的數(shù)控;(4)技術(shù)更改或技術(shù)創(chuàng)新,以提高性能和品位,或使用新技。

6、數(shù)控機床及電氣改造,2005.11,數(shù)字控制（numericalcontrol）是一種自動控制技術(shù)，是用數(shù)字化信號對機床運動及其加工過程進行控制的一種方法，簡稱為數(shù)（NC）。IFIP第五技術(shù)委員會對數(shù)控機床作了如下定義：數(shù)控機床是一個裝有程序控制系統(tǒng)的機床。該系統(tǒng)能夠邏輯地處理具有使用號碼，或其他符號編碼指令規(guī)定的程序。數(shù)控系統(tǒng)(程序控制系統(tǒng))是一種控制系統(tǒng),能自動閱讀輸入載體上事先給定的數(shù)字值。

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10、外文資料翻譯 1 機床數(shù)控改造 一、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。它與人類在農(nóng)業(yè)、工業(yè)社會中創(chuàng)造的那些只是增強體力勞動的工具相比，起了質(zhì)的飛躍，為人類進入信息社會奠定了基礎(chǔ)。 6 年后，即在1952 年，計算機技術(shù)應(yīng)用到了機床上，在美國誕生了第一臺數(shù)控機床。從此，傳統(tǒng)機床產(chǎn)生了質(zhì)的變化。近半個世紀以來，數(shù)控系統(tǒng)經(jīng)歷了兩個階段和六代的發(fā)展。 控（ 段（ 1952 1970 年） 早期計算機的運算速度低，對當時的科學計算和數(shù)據(jù)處理影響還不大， 但不。

11、河北建筑工程學院 畢業(yè)設(shè)計計算書 指導教師：孫長山 設(shè) 計 題 目 ： 前 板 連 續(xù) 模 設(shè) 計 及 沖 壓 工 藝 分 析英文原文 .M 946 in to to It in is to up to 952, to S. of 1952 970) is to to to an to is C), 952 - 1959 - 1965 - 970 - 970, it on in of to 971, in - on it 北建筑工程學院 畢業(yè)設(shè)計計算書 指導教師：孫長山 設(shè)計題目： 前板連續(xù)模設(shè)計及沖壓工藝分析2 be to be is 974 in is an to in at it to to be is 990, PC to on C In 970 - 1974 - 990 - (C. as we , 1.3 to on C of C so on C to at so on by PC to be 河北。

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13、第六章 數(shù)控機床的位置檢測系統(tǒng),第一節(jié) 概述,一、位置檢測裝置概述及其要求,對位置精度要求不高的數(shù)控機械，開環(huán)系統(tǒng)即可滿足要求。而對位置精度要求高的，一般均應(yīng)是閉環(huán)系統(tǒng)。位置閉環(huán)系統(tǒng)是用位移傳感器測出工作機構(gòu)的實際位置，并輸入計算機和預先給定的理想位置比較，得到差值，再根據(jù)此差值向伺服機構(gòu)發(fā)出相應(yīng)的控制指令。伺服機構(gòu)帶動工作機構(gòu)向理想位置趨近，直到差值為零為止。在閉環(huán)系統(tǒng)中，位置傳感器是位置控制閉。