外文翻譯----數(shù)控技術(shù)和裝備發(fā)展趨勢-數(shù)控設(shè)計(存儲版)
【正文】 now, among them most technology have already possessed and mercialized the foundation developed , some technology has already, industrialization mercialized. formed the industrial base of numerical control tentatively. In tackling key problems the foundation that the achievement and some technology mercialize , set up the systematic factories of numerical control with production capacity in batches such as numerical control in Central China , numerical control of the spaceflight etc.. Electrical machinery plant of Lanzhou, such factory and the first machine tool plant of Beijing , the first machine tool plant of Jinan ,etc. several numerical control host puter factories of a batch of servo systems and servo electrical machineries as the numerical control in Central China,etc.. These factories have formed the numerical control industrial base of our country basically. set up a numerical control research, development , managerial talent39。 Research , formulation that relevant standards are normal lag behind. It is analysed that the main reason for having abovementioned disparity has the following several respect. the respect. Know to industry39。此外世界上各工業(yè)發(fā)達國家還將數(shù)控技術(shù)及數(shù)控裝 備列為國家的戰(zhàn)略物資，不僅采取重大措施來發(fā)展自己的數(shù)控技術(shù)及其產(chǎn)業(yè)，而且在 “ 高精尖 ” 數(shù)控關(guān)鍵技術(shù)和裝備方面對我國實行封鎖和限制政策。近來采用大型整體鋁合金坯料 “ 掏空 ” 的方法來制造機翼、機身等大型零件來替代多個零件通過眾多的鉚釘、螺釘和其他聯(lián)結(jié)方式拼裝，使構(gòu)件的強度、剛度和可靠性得到提高。 2 對我國數(shù)控技術(shù)及其產(chǎn)業(yè)發(fā)展的基本估計 我國數(shù)控技術(shù)起步于 1958 年，近 50 年的發(fā)展歷程大致可分為 3 個階段：第一階段從 1958 年到 1979 年，即封閉式發(fā)展階段。 ，基本掌握了現(xiàn)代數(shù)控技術(shù)。雖然從縱向看我國的發(fā)展速度很快，但橫向比（與國外對比）不僅技術(shù)水平有 差距，在某些方面發(fā)展速度也有差距，即一些高精尖的數(shù)控裝備的技術(shù)水平差距有擴大趨勢。 。機床標準落后，水平較低，數(shù)控系統(tǒng)新標準研究不夠。 。 、開發(fā)、管理人才的基本隊伍。在“ 九五 ” 末期，國產(chǎn)數(shù)控機床的國內(nèi)市場占有率達 50％，配國產(chǎn)數(shù)控系統(tǒng)（普及型）也達到了 10％。因此促進了復(fù)合主軸頭類型 5 軸聯(lián)動機床和復(fù)合加工機床（含 5 面加工機床）的發(fā)展。為此日本先端技術(shù)研究會將其列為 5 大現(xiàn)代制造技術(shù)之一，國際生產(chǎn)工程學(xué)會（ CIRP）將其確定為21 世紀的中心研究方向之一。制造技術(shù)和裝備就是人類生產(chǎn)活動的最基本的生產(chǎn)資料，而數(shù)控技術(shù)又是當今先進制造技術(shù)和裝備最核心的技術(shù)。s own brand effect that the domestic numerical control system has not been set up yet, users have insufficient confidence. the ability of sustainable development, research and development of numerical control technology , project ability are relatively weak to the petition。 Join the convenient one in order to improve the performance of urging and use intelligently, if feedforward control , adaptive operation , electrical machinery of parameter , discern load select models , since exactly makes etc. automatically automatically。 Numerical control technology and equiping development trend Equip the engineering level , level of determining the whole national economy of the modernized degree and modernized degree of industry, numerical control technology is it develop new developing new hightech industry and most advanced industry to equip (such as information technology and his industry, biotechnology and his industry, aviation , spaceflight,etc. national defense industry industry) last technology and getting more basic most equipment. Marx has ever said the differences of different economic times, do not lie in what is produced , and lie in how to produce, produce with some means of labor . Manufacturing technology and equiping the most basic means of production that are that the mankind produced the activity, and numerical control technology is nowadays advanced manufacturing technology and equips the most central technology. Nowadays the manufactur
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