0491-8英寸鋼管熱浸鍍鋅生產(chǎn)線機(jī)橫移機(jī)設(shè)計【全套27張CAD圖】,全套27張CAD圖,英寸,鋼管,鍍鋅,生產(chǎn)線,機(jī)橫移機(jī),設(shè)計,全套,27,cad 開題報告 專 業(yè) 機(jī)械設(shè)計制造及自動化 題 目 8英寸鋼管熱浸鍍鋅自動生產(chǎn)線設(shè)計 （子題目：鋼管熱浸鍍鋅生產(chǎn)線機(jī)橫移機(jī)設(shè)計） 擬選題目 8英寸鋼管熱浸鍍鋅自動生產(chǎn)線設(shè)計——鍍鋅鋼管橫移機(jī)設(shè)計 選題依據(jù)及研究意義： 熱鍍鋅是鋼鐵最經(jīng)濟(jì)、最基本、應(yīng)用最普遍的防腐方法之一，廣泛應(yīng)用于經(jīng)濟(jì)建設(shè)中的各個領(lǐng)域，如絲、管、板、帶，鋼結(jié)構(gòu)件等。近年來，隨著基礎(chǔ)建設(shè)的加速，鍍鋅鋼板、高速公路鍍鋅護(hù)欄和鍍鋅郵電鐵塔的發(fā)展勢頭強(qiáng)勁。這些行業(yè)的發(fā)展大大推動了熱鍍鋅行業(yè)的發(fā)展。但是，目前我國的熱鍍鋅工藝水平較低，鋅耗高、產(chǎn)品質(zhì)量差、環(huán)境污染嚴(yán)重。 本項(xiàng)目全面優(yōu)化熱鍍鋅工藝，可大大提高我國的熱鍍鋅水平，使之接近目前國際水平。鋅耗由目前噸產(chǎn)品的7%降至5%，產(chǎn)品質(zhì)量大幅度提高，環(huán)境污染減輕。 可見，研究與解決金屬腐蝕問題在發(fā)展經(jīng)濟(jì)、節(jié)約能源、防止污染、保證人與自然協(xié)調(diào)共存等方面都有十分重要的意義和作用。因此，本課程設(shè)計符合市場及技術(shù)經(jīng)濟(jì)的需求，對我國工業(yè)的發(fā)展有著重要的意義。 鍍鋅鋼板廣泛地用于輕工、家電、汽車和建筑行業(yè)。在汽車工業(yè)中，用于汽車車體、外殼、內(nèi)板、底板等；在家電和輕工方面，用于各類家用電器的外殼和底板；在建筑業(yè)中，用于各類工業(yè)及民用建筑的輕鋼龍骨、建筑層面板、瓦楞板、卷簾門等。長期以來中國鍍鋅板一直屬于短線產(chǎn)品，1988-2002年，中國鍍鋅板生產(chǎn)及表觀消費(fèi)量，多年來中國鍍鋅板的自給率約為50％，每年需要大量進(jìn)口。 鋼管熱鍍鋅生產(chǎn)線的設(shè)計作為畢業(yè)設(shè)計課題，其覆蓋面較廣，涉及到機(jī)、電、氣、制冷等一體化技術(shù)以及專業(yè)課程等知識，在這個過程中，我們不但提高了自己的繪圖能力，也提高了我們的分析能力和解決實(shí)際問題的能力。 文獻(xiàn)綜述（對已有相關(guān)代表性研究成果的綜合介紹與評價）： 經(jīng)過三周的文獻(xiàn)檢索，展覽會的參觀，我對金屬熱鍍鋅的生產(chǎn)有了進(jìn)一步的了解。 金屬材料在工農(nóng)業(yè)上用的最多的是鋼鐵材料。但鋼鐵材料耐腐蝕性能比較差。熱鍍鋅是防止鋼鐵生銹的一種方法，是公認(rèn)的高性價比鋼鐵制品防護(hù)方法。焊接鋼管的熱鍍鋅技術(shù)國外在六、七十年代已經(jīng)得到比較廣泛的應(yīng)用。由于鋅層能夠保護(hù)鋼基體不受腐蝕，鍍鋅管比未鍍鋅的黑管壽命可延長十幾倍，因而，已廣泛用于鋼鐵的保護(hù)。如用于建筑、石油、化工、造船和電力等領(lǐng)域。 焊接鋼管的熱鍍鋅技術(shù)國外在六、七十年代已經(jīng)得到比較廣泛的應(yīng)用。由于鋅層能夠保護(hù)鋼基體不受腐蝕，鍍鋅管比未鍍鋅的黑管壽命可延長十幾倍，因而，被廣泛用于建筑、石油、化工、造船和電力等領(lǐng)域。 為了改善鋼管熱浸鍍鋅生產(chǎn)環(huán)境，提高鍍鋅鋼管質(zhì)量，我國開始了研發(fā)鋼管熱浸鍍鋅生產(chǎn)線。該生產(chǎn)線采用新穎的液壓機(jī)械手浸鍍，以取代傳統(tǒng)的結(jié)構(gòu)龐大的轉(zhuǎn)耙式與螺旋式鍍鋅機(jī)構(gòu)，不僅簡化了熱鍍鋅管生產(chǎn)機(jī)構(gòu)，改進(jìn)了鍍鋅工藝，而且提高了鍍鋅管質(zhì)量，降低了生產(chǎn)成本。 目前，美、日大規(guī)模生產(chǎn)熱軋帶鋼鍍鋅板，并已與冷軋鍍鋅板平分天下?？梢韵嘈牛捎跓彳堝冧\板的低成本，其市場前景非常廣闊。 研究內(nèi)容（包括基本思路、框架、主要研究方式、方法等）： 鍍鋅設(shè)備為SDX雙線鍍鋅機(jī)組，本機(jī)采用微機(jī)全自動控制。 工藝流程：工件運(yùn)輸、檢驗(yàn)、酸洗、清水洗、涂溶劑、烘干、熱浸鋅、引出外吹、內(nèi)吹、冷卻、鈍化、檢驗(yàn)、打印、包裝、入庫。 其中，關(guān)鍵工序?yàn)椋核嵯?、涂溶劑；特殊工序?yàn)椋簾峤\、鈍化。 1．鋼管酸洗： （1）采用鹽酸酸洗：配置含量為15-18﹪濃度的酸洗液（或濃度為100-170克的稀鹽酸）。首先將清水放入酸洗槽中，然后加入足量的鹽酸；往水中放入鹽酸時，一定要把放酸的膠管插入水中，防止鹽酸氣體的發(fā)揮，污染空氣。 （2）當(dāng)酸液中鹽酸的含量低于100克/升時，可加入新鹽酸進(jìn)行調(diào)配，以保證酸洗速度。 （3）酸洗液的溫度應(yīng)保持在8℃-35℃，鹽酸不宜加溫縮短酸洗時間，而宜增加其濃度提高酸洗速度。 （4）酸洗時間可根據(jù)鋼管的銹蝕程度、酸液濃度、溫度等情況決定。 （5）酸液中氯化鐵（鐵鹽）含量最多不得超過200克/升，當(dāng)鐵鹽含量大于150克/升小于200克/升時，應(yīng)停止往酸洗槽中加入新酸。 （6）當(dāng)鐵鹽超過200克/升濃度低于20克/升時應(yīng)排放，重新配置新的酸液。 （7）雨季或空氣濕度大時，會產(chǎn)生酸霧，惡化空氣環(huán)境，要加入酸霧抑制劑，抑制酸霧或使用萘磺酸甲醛縮合物封閉酸液面。 （8）為防止鋼管局部欠酸洗，增加酸洗速度，要在酸洗期間勤翻動鋼管，使之產(chǎn)生摩擦，多接觸酸液，酸洗后的鋼管表面應(yīng)呈銀亮色。 2. 涂溶劑 涂溶劑的目的是：防止在烘干過程中鐵基體接觸空氣而再次氧化生銹；清除掉鋼管表面上殘留的鐵鹽及其他污物；使鋼管表面的鐵基體于鋅液更快的形成合金。 鋼管鍍鋅烘干后的鋼管經(jīng)過鍍鋅機(jī)自動運(yùn)轉(zhuǎn)，進(jìn)入鋅液，鋼管在鋅液中排放管內(nèi)的氣體，經(jīng)過浸鋅，形成牢固的鋅鐵合金層，再經(jīng)過提升、引出就完成了鋼管鍍鋅。 在正常情況下鋅液溫度范圍應(yīng)保持在450℃（+5℃或-5℃）為改善鋅層韌性極鋅液流動性和光潔度，鋅液中的含鋅量應(yīng)保持在0.2-0.3﹪之間。鋅液中加鋁要以鋅鋁合金方式加入。內(nèi)吹時，必須使鋼管內(nèi)壁吹凈不得有余鋅。 往鋅液中加鋅塊時，要分多次添加，不要一次集中添加，一次不得超過15塊，以保證鋅液的溫度和設(shè)備的正常運(yùn)轉(zhuǎn)，同時保證正常鋅液面高。對于往鋅液中投放鋅鋁合金，一般是每下一噸鋅就要投相配量的鋅鋁合金，以保證鋅液的含鋁量在0.2-0.3﹪之間。 鍍鋅生產(chǎn)過程中，在鋅液面產(chǎn)生的鋅灰，不要產(chǎn)生很多時再清除。 研究進(jìn)程安排： 3.5 —3.14 收集相關(guān)論文資料和參考文獻(xiàn)，完成翻譯工作。 3.15 —3.30 完城實(shí)習(xí)報告和開題報告。 4.1 —5.10 進(jìn)行零件，部件，總裝的草圖。 5.11 —5.25 完成結(jié)構(gòu)設(shè)計圖紙。 5.26 —6.5 整理完成設(shè)計說明書。 6.6 —6.25 準(zhǔn)備并參加答辯。 主要參閱文獻(xiàn)： [1]王義生．國外鋼管熱鍍鋅生產(chǎn)[M]．冶金工業(yè)出版社． [2]楊廷力．機(jī)械系統(tǒng)基本理論一結(jié)構(gòu)學(xué)、運(yùn)動學(xué)、動力學(xué)．北京：機(jī)械工業(yè)出版社，1996 [2]陳厚載．熱鍍鋅技術(shù)1000例[M]．上海交大出版社． [3]吳作明等．熱鍍鋅、電鍍鋅及鋅合金創(chuàng)新生產(chǎn)工藝實(shí)用全書．北方工業(yè)出版社，2OOO(16) [4]李九齡 帶鋼連續(xù)熱鍍鋅（第2版） ．冶金工業(yè)出版社，2002(14) [5]凌全偉，劉建秋．熱鍍鋅技術(shù)的現(xiàn)狀及發(fā)展[J] ．鞍鋼技術(shù)，2004(2) [6]孔綱，盧錦堂，陳錦紅等．熱浸鋅浴中少量鋁對鍍層的影響[J]．材料保護(hù)，2002(35) [7]朱立．鋼材熱鍍鋅：化學(xué)工業(yè)出版社，1996 其它說明： 市場前景: 全國每年大約有1000萬噸鍍鋅產(chǎn)品，如果每噸產(chǎn)品節(jié)鋅2%，每年可節(jié)鋅20萬噸，價值20億元。加之由于提高產(chǎn)品質(zhì)量，降低環(huán)境污染帶來的效益，這個市場更加巨大。 指導(dǎo)教師是否同意開題 簽名: 年 月 日 系（教研室）教學(xué)負(fù)責(zé)人簽署 簽名: 年 月 日 說明： 1、開題報告工作從第七學(xué)期學(xué)生確定畢業(yè)設(shè)計（論文）題目后開始，在教師指導(dǎo)下，學(xué)生通過調(diào)研、收資后，于第八學(xué)期第四周前完成。 2、紙張?zhí)顚懖粔蚩闪砑痈巾摗? 參考文獻(xiàn) [1] 張福潤、徐鴻本、劉廷林主編，《機(jī)械制造技術(shù)基礎(chǔ)》。武漢：華中科技大學(xué)出版社，2000年。 [2] 徐灝主編，《機(jī)械設(shè)計手冊》，機(jī)械工業(yè)出版社，1991年，第一版。 [3] 吳宗澤、羅圣國主編，《機(jī)械設(shè)計課程設(shè)計手冊》，高等教育出版社，1999年，第二版。 [4] 濮良貴、紀(jì)名剛主編，《機(jī)械設(shè)計》，高等教育出版社，2001年，第七版 [5] 諸文俊、陳曉南、陳剛主編，《機(jī)械設(shè)計基礎(chǔ)》，西安交通大學(xué)出版社，1998年，第一版。 [6] 李繼慶、陳作模主編，《機(jī)械設(shè)計基礎(chǔ)》，高等教育出版社，1999年，第一版。 [7] 朱龍根主編，《簡明機(jī)械零件設(shè)計手冊》，機(jī)械工業(yè)出版社。 [8] 龔桂義主編，《機(jī)械設(shè)計課程設(shè)計圖冊》，高等教育出版社，1983年，第三版。 [9] 李敬杰、孔德音主編，《互換性與測量技術(shù)基礎(chǔ)》，天津科技翻譯出版公司，2002年，第三版。 [10] 李天無主編，《簡明機(jī)械工程師手冊》，云南科技出版社，1988年。 [11] 普蘭店市液壓氣動元件廠編，《帶閥氣缸系列和基本外形尺寸圖》，2006年。 [12] 杜慶華主編，《工程力學(xué)》，高等教育出版社，1994年。高等教育出版社 [13] 陳冬、金向雷，我國大陸熱鍍鋅的現(xiàn)狀、技術(shù)發(fā)展和發(fā)展動向，深圳，第七節(jié)全國熱浸鍍大會，2004年3月26日。 [14] 張傳秀、倪曉峰，熱度鋅板工程設(shè)計中的環(huán)境保護(hù)問題，深圳，第七節(jié)全國熱浸鍍大會，2004年3月26日。 [15] 王勝民 機(jī)械鍍鋅工藝的清潔生產(chǎn)：環(huán)境污染治理技術(shù)與設(shè)備第4卷第11期。 [16] 鍍鋅工藝的發(fā)展：維普資訊 工藝學(xué)習(xí)專欄。 [17] 俞鋼強(qiáng) 中國鍍鋅工業(yè)的發(fā)展及對鋅的需求：廣西北海，第五屆中國熱浸鍍學(xué)術(shù)技術(shù)交流會，1999年。 [18] 張啟富 熱浸鍍鋅工藝技術(shù)和設(shè)備的進(jìn)展，上海，第六屆中國熱浸鍍學(xué)術(shù)技術(shù)交流會，2001. [19] Takeo Oki.Application of hot dip galvanized steels to concrete:rebarstand its future trend {R}.PYUNG SAN KOREA 5th Asia-pacific General Galvanizing Conference,2001. [20] Nash W A. Theory and problems of strength of materials. 2nd ed.New York: McGraw-Hill,1977 [21] Gere J M, Timoshenko S P. Mechanics of materials. Second SI Edition. New York: Van Nostrand Reinhold,1984 [22] Beer F P, Johnton E R. Mechanics of materials.2nd ed. New York: McGraw-Hill,1992 摘 要 本次設(shè)計的題目是8英寸鋼管熱浸鍍鋅自動生產(chǎn)線設(shè)計。它是根據(jù)熱鍍鋅工藝的要求而設(shè)計的。包括工件運(yùn)輸、工件檢驗(yàn)、酸洗、清水洗、涂溶劑、烘干、熱浸鍍、引出外吹、內(nèi)吹、冷卻、鈍化、打印、包裝等工序。其中熱浸鍍、鈍化是特殊工序；酸洗、涂溶劑是關(guān)鍵工序。本次設(shè)計中，我具體負(fù)責(zé)鍍鋅機(jī)橫移機(jī)的設(shè)計。在說明書中，我詳細(xì)介紹了鋼管熱浸鍍鋅自動生產(chǎn)線設(shè)備設(shè)計，以及橫移機(jī)的相關(guān)計算，如軸的校核，螺紋聯(lián)接的強(qiáng)度計算等，來滿足保證設(shè)計要求。同時在說明書中也附有大量的圖示以展示重要機(jī)構(gòu)，說明其具體結(jié)構(gòu)和它們之間的裝配關(guān)系。說明書中還介紹了關(guān)于這臺設(shè)備所要注意的環(huán)境保護(hù)等方面的問題。 關(guān)鍵詞： 鋼管； 熱鍍鋅； 自動生產(chǎn)線； 橫移機(jī) ABSTRACT The paper is written on the topic of design for steel pipe of hot zinc plating automatic product equipment. It is base on the hot zinc plating technics including workpiece , transportation ,work inspection, pickling, washing ,making inpregnent,, drying, hot plating, draw out, postartum mastitis ,passivation, cooling, printing, packaging. The hot zinc plating and passivation, are the special working procedure, pickling and making inpregnent are pretty crucial work procedure. I take charge of the traverse motion machine designing. Steel pipe of hot zinc plating automatic product equipment is introduced in detail in the paper. The important framework are exemplified to show their interaction and we also concentrate on the environment protecting. Keywords: Steel pipe; Hot galvanizing; Automatic product equipment; Traverse motion machine 目 錄 第一章 前言……………………….……………………….……………....….(1) 第二章 總體設(shè)計……………..…….…………………………………...….....(5) 第一節(jié) 工藝方案設(shè)計…………………………………………….………..….(5) 第二節(jié) 工藝流程…………………………………………...………….......…..(5) 第三節(jié) 工藝設(shè)備………………………………………………………...…….(15) 第三章 鍍鋅機(jī)橫移機(jī)設(shè)計…...…………………………………..….…....….(19) 第一節(jié) 鍍鋅機(jī)橫移機(jī)的結(jié)構(gòu)圖和及工作原理………….……..……....…….(19) 第二節(jié) 軸的設(shè)計及校核………………………………...……….….......…….(23) 第三節(jié) 聯(lián)軸聯(lián)器的設(shè)計及校核………………………………………...….....(28) 第四章 其他相關(guān)部件機(jī)構(gòu)介紹…………………...…………...…..…...……(30) 第一節(jié) 鍍鋅機(jī)引出機(jī)設(shè)計………………………..…………….…...….…….(30) 第二節(jié) 鍍鋅機(jī)引上機(jī)設(shè)計…………………………………..……....………..(30) 第五章 有關(guān)金屬熱鍍鋅工業(yè)發(fā)展的環(huán)境保護(hù)問題…………… ..………....(31) 第六章 鍍鋅的發(fā)展前景………………………..……………….............…....(32) 參考文獻(xiàn)………………………………………………...……………......….…(34) 致謝……………………………………..……………………..…………......…(35) 附錄…………………...……………………………………………..........…..…(36) 數(shù)控技術(shù)和裝備發(fā)展趨勢及對策 裝備工業(yè)的技術(shù)水平和現(xiàn)代化程度決定著整個國民經(jīng)濟(jì)的水平和現(xiàn)代化程度，數(shù)控技術(shù)及裝備是發(fā)展新興高新技術(shù)產(chǎn)業(yè)和尖端工業(yè)（如信息技術(shù)及其產(chǎn)業(yè)、生物技術(shù)及其產(chǎn)業(yè)、航空、航天等國防工業(yè)產(chǎn)業(yè)）的使能技術(shù)和最基本的裝備。馬克思曾經(jīng)說過“各種經(jīng)濟(jì)時代的區(qū)別，不在于生產(chǎn)什么，而在于怎樣生產(chǎn)，用什么勞動資料生產(chǎn)”。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(dāng)今先進(jìn)制造技術(shù)和裝備最核心的技術(shù)。 當(dāng)今世界各國制造業(yè)廣泛采用數(shù)控技術(shù)，以提高制造能力和水平，提高對動態(tài)多變市場的適 應(yīng)能力和競爭能力。此外世界上各工業(yè)發(fā)達(dá)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(shí)行封鎖和限制政策?？傊?，大力發(fā)展以數(shù)控技術(shù)為核心的先進(jìn)制造技術(shù)已成為世界各發(fā)達(dá)國家加速經(jīng)濟(jì)發(fā)展、提高綜合國力和國家地位的重要途徑。 數(shù)控技術(shù)是用數(shù)字信息對機(jī)械運(yùn)動和工作過程進(jìn)行控制的技術(shù)，數(shù)控裝備是以數(shù)控技術(shù)為代表的新技術(shù)對傳統(tǒng)制造產(chǎn)業(yè)和新興制造業(yè)的滲透形成的機(jī)電一體化產(chǎn)品，即所謂的數(shù)字化裝備，其技術(shù)范圍覆蓋很多領(lǐng)域：(1)機(jī)械制造技術(shù)；(2)信息處理、加工、傳輸技術(shù)；(3)自動控制技術(shù)；(4)伺服驅(qū)動技術(shù)；(5)傳感器技術(shù)；(6)軟件技術(shù)等。 1 數(shù)控技術(shù)的發(fā)展趨勢 數(shù)控技術(shù)的應(yīng)用不但給傳統(tǒng)制造業(yè)帶來了革命性的變化，使制造業(yè)成為工業(yè)化的象征，而且隨著數(shù)控技術(shù)的不斷發(fā)展和應(yīng)用領(lǐng)域的擴(kuò)大，他對國計民生的一些重要行業(yè)（IT、汽車、輕工、醫(yī)療等）的發(fā)展起著越來越重要的作用，因?yàn)檫@些行業(yè)所需裝備的數(shù)字化已是現(xiàn)代發(fā)展的大趨勢。從目前世界上數(shù)控技術(shù)及其裝備發(fā)展的趨勢來看，其主要研究熱點(diǎn)有以下幾個方面［1～4］。 1．1 高速、高精加工技術(shù)及裝備的新趨勢 效率、質(zhì)量是先進(jìn)制造技術(shù)的主體。高速、高精加工技術(shù)可極大地提高效率，提高產(chǎn)品的質(zhì)量和檔次，縮短生產(chǎn)周期和提高市場競爭能力。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(jì)的中心研究方向之一。 在轎車工業(yè)領(lǐng)域，年產(chǎn)30萬輛的生產(chǎn)節(jié)拍是40秒/輛，而且多品種加工是轎車裝備必須解決的重點(diǎn)問題之一；在航空和宇航工業(yè)領(lǐng)域，其加工的零部件多為薄壁和薄筋，剛度很差，材料為鋁或鋁合金，只有在高切削速度和切削力很小的情況下，才能對這些筋、壁進(jìn)行加工。近來采用大型整體鋁合金坯料“掏空”的方法來制造機(jī)翼、機(jī)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(qiáng)度、剛度和可靠性得到提高。這些都對加工裝備提出了高速、高精和高柔性的要求。 從EMO2001展會情況來看，高速加工中心進(jìn)給速度可達(dá)80m/min，甚至更高，空運(yùn)行速度可達(dá)100m/min左右。目前世界上許多汽車廠，包括我國的上海通用汽車公司，已經(jīng)采用以高速加工中心組成的生產(chǎn)線部分替代組合機(jī)床。美國CINCINNATI公司的HyperMach機(jī)床進(jìn)給速度最大達(dá)60m/min，快速為100m/min，加速度達(dá)2g，主軸轉(zhuǎn)速已達(dá)60 000r/min。加工一薄壁飛機(jī)零件，只用30min，而同樣的零件在一般高速銑床加工需3h，在普通銑床加工需8h；德國DMG公司的雙主軸車床的主軸速度及加速度分別達(dá)12*!000r/mm和1g。 在加工精度方面，近10年來，普通級數(shù)控機(jī)床的加工精度已由10μm提高到5μm，精密級加工中心則從3～5μm，提高到1～1.5μm，并且超精密加工精度已開始進(jìn)入納米級(0.01μm)。 在可靠性方面，國外數(shù)控裝置的MTBF值已達(dá)6 000h以上，伺服系統(tǒng)的MTBF值達(dá)到30000h以上，表現(xiàn)出非常高的可靠性。 為了實(shí)現(xiàn)高速、高精加工，與之配套的功能部件如電主軸、直線電機(jī)得到了快速的發(fā)展，應(yīng)用領(lǐng)域進(jìn)一步擴(kuò)大。 1.2 5軸聯(lián)動加工和復(fù)合加工機(jī)床快速發(fā)展 采用5軸聯(lián)動對三維曲面零件的加工，可用刀具最佳幾何形狀進(jìn)行切削，不僅光潔度高，而且效率也大幅度提高。一般認(rèn)為，1臺5軸聯(lián)動機(jī)床的效率可以等于2臺3軸聯(lián)動機(jī)床，特別是使用立方氮化硼等超硬材料銑刀進(jìn)行高速銑削淬硬鋼零件時，5軸聯(lián)動加工可比3軸聯(lián)動加工發(fā)揮更高的效益。但過去因5軸聯(lián)動數(shù)控系統(tǒng)、主機(jī)結(jié)構(gòu)復(fù)雜等原因，其價格要比3軸聯(lián)動數(shù)控機(jī)床高出數(shù)倍，加之編程技術(shù)難度較大，制約了5軸聯(lián)動機(jī)床的發(fā)展。 當(dāng)前由于電主軸的出現(xiàn)，使得實(shí)現(xiàn)5軸聯(lián)動加工的復(fù)合主軸頭結(jié)構(gòu)大為簡化，其制造難度和成本大幅度降低，數(shù)控系統(tǒng)的價格差距縮小。因此促進(jìn)了復(fù)合主軸頭類型5軸聯(lián)動機(jī)床和復(fù)合加工機(jī)床（含5面加工機(jī)床）的發(fā)展。 在EMO2001展會上，新日本工機(jī)的5面加工機(jī)床采用復(fù)合主軸頭，可實(shí)現(xiàn)4個垂直平面的加工和任意角度的加工，使得5面加工和5軸加工可在同一臺機(jī)床上實(shí)現(xiàn)，還可實(shí)現(xiàn)傾斜面和倒錐孔的加工。德國DMG公司展出DMUVoution系列加工中心，可在一次裝夾下5面加工和5軸聯(lián)動加工，可由CNC系統(tǒng)控制或CAD/CAM直接或間接控制。 1.3 智能化、開放式、網(wǎng)絡(luò)化成為當(dāng)代數(shù)控系統(tǒng)發(fā)展的主要趨勢 21世紀(jì)的數(shù)控裝備將是具有一定智能化的系統(tǒng)，智能化的內(nèi)容包括在數(shù)控系統(tǒng)中的各個方面：為追求加工效率和加工質(zhì)量方面的智能化，如加工過程的自適應(yīng)控制，工藝參數(shù)自動生成；為提高驅(qū)動性能及使用連接方便的智能化，如前饋控制、電機(jī)參數(shù)的自適應(yīng)運(yùn)算、自動識別負(fù)載自動選定模型、自整定等；簡化編程、簡化操作方面的智能化，如智能化的自動編程、智能化的人機(jī)界面等；還有智能診斷、智能監(jiān)控方面的內(nèi)容、方便系統(tǒng)的診斷及維修等。 為解決傳統(tǒng)的數(shù)控系統(tǒng)封閉性和數(shù)控應(yīng)用軟件的產(chǎn)業(yè)化生產(chǎn)存在的問題。目前許多國家對開放式數(shù)控系統(tǒng)進(jìn)行研究，如美國的NGC(The Next Generation Work-Station/Machine Control)、歐共體的OSACA(Open System Architecture for Control within Automation Systems)、日本的OSEC(Open System Environment for Controller)，中國的ONC(Open Numerical Control System)等。數(shù)控系統(tǒng)開放化已經(jīng)成為數(shù)控系統(tǒng)的未來之路。所謂開放式數(shù)控系統(tǒng)就是數(shù)控系統(tǒng)的開發(fā)可以在統(tǒng)一的運(yùn)行平臺上，面向機(jī)床廠家和最終用戶，通過改變、增加或剪裁結(jié)構(gòu)對象（數(shù)控功能），形成系列化，并可方便地將用戶的特殊應(yīng)用和技術(shù)訣竅集成到控制系統(tǒng)中，快速實(shí)現(xiàn)不同品種、不同檔次的開放式數(shù)控系統(tǒng)，形成具有鮮明個性的名牌產(chǎn)品。目前開放式數(shù)控系統(tǒng)的體系結(jié)構(gòu)規(guī)范、通信規(guī)范、配置規(guī)范、運(yùn)行平臺、數(shù)控系統(tǒng)功能庫以及數(shù)控系統(tǒng)功能軟件開發(fā)工具等是當(dāng)前研究的核心。 網(wǎng)絡(luò)化數(shù)控裝備是近兩年國際著名機(jī)床博覽會的一個新亮點(diǎn)。數(shù)控裝備的網(wǎng)絡(luò)化將極大地滿足生產(chǎn)線、制造系統(tǒng)、制造企業(yè)對信息集成的需求，也是實(shí)現(xiàn)新的制造模式如敏捷制造、虛擬企業(yè)、全球制造的基礎(chǔ)單元。國內(nèi)外一些著名數(shù)控機(jī)床和數(shù)控系統(tǒng)制造公司都在近兩年推出了相關(guān)的新概念和樣機(jī)，如在EMO2001展中，日本山崎馬扎克（Mazak)公司展出的“CyberProduction Center”（智能生產(chǎn)控制中心，簡稱CPC)；日本大隈（Okuma）機(jī)床公司展出“IT plaza”（信息技術(shù)廣場，簡稱IT廣場)；德國西門子(Siemens)公司展出的Open Manufacturing Environment（開放制造環(huán)境，簡稱OME）等，反映了數(shù)控機(jī)床加工向網(wǎng)絡(luò)化方向發(fā)展的趨勢。 1.4 重視新技術(shù)標(biāo)準(zhǔn)、規(guī)范的建立 1.4.1 關(guān)于數(shù)控系統(tǒng)設(shè)計開發(fā)規(guī)范 如前所述，開放式數(shù)控系統(tǒng)有更好的通用性、柔性、適應(yīng)性、擴(kuò)展性，美國、歐共體和日本等國紛紛實(shí)施戰(zhàn)略發(fā)展計劃，并進(jìn)行開放式體系結(jié)構(gòu)數(shù)控系統(tǒng)規(guī)范(OMAC、OSACA、OSEC)的研究和制定，世界3個最大的經(jīng)濟(jì)體在短期內(nèi)進(jìn)行了幾乎相同的科學(xué)計劃和規(guī)范的制定，預(yù)示了數(shù)控技術(shù)的一個新的變革時期的來臨。我國在2000年也開始進(jìn)行中國的ONC數(shù)控系統(tǒng)的規(guī)范框架的研究和制定。 1.4.2 關(guān)于數(shù)控標(biāo)準(zhǔn) 數(shù)控標(biāo)準(zhǔn)是制造業(yè)信息化發(fā)展的一種趨勢。數(shù)控技術(shù)誕生后的50年間的信息交換都是基于ISO6983標(biāo)準(zhǔn)，即采用G，M代碼描述如何（how）加工，其本質(zhì)特征是面向加工過程，顯然，他已越來越不能滿足現(xiàn)代數(shù)控技術(shù)高速發(fā)展的需要。為此，國際上正在研究和制定一種新的CNC系統(tǒng)標(biāo)準(zhǔn)ISO14649（STEP－NC)，其目的是提供一種不依賴于具體系統(tǒng)的中性機(jī)制，能夠描述產(chǎn)品整個生命周期內(nèi)的統(tǒng)一數(shù)據(jù)模型，從而實(shí)現(xiàn)整個制造過程，乃至各個工業(yè)領(lǐng)域產(chǎn)品信息的標(biāo)準(zhǔn)化。 STEP-NC的出現(xiàn)可能是數(shù)控技術(shù)領(lǐng)域的一次革命，對于數(shù)控技術(shù)的發(fā)展乃至整個制造業(yè)，將產(chǎn)生深遠(yuǎn)的影響。首先，STEP-NC提出一種嶄新的制造理念，傳統(tǒng)的制造理念中，NC加工程序都集中在單個計算機(jī)上。而在新標(biāo)準(zhǔn)下，NC程序可以分散在互聯(lián)網(wǎng)上，這正是數(shù)控技術(shù)開放式、網(wǎng)絡(luò)化發(fā)展的方向。其次，STEP-NC數(shù)控系統(tǒng)還可大大減少加工圖紙（約75％）、加工程序編制時間（約35％）和加工時間（約50％）。 目前，歐美國家非常重視STEP-NC的研究，歐洲發(fā)起了STEP-NC的IMS計劃(1999.1.1～2001.12.31)。參加這項(xiàng)計劃的有來自歐洲和日本的20個CAD/CAM/CAPP/CNC用戶、廠商和學(xué)術(shù)機(jī)構(gòu)。美國的STEP Tools公司是全球范圍內(nèi)制造業(yè)數(shù)據(jù)交換軟件的開發(fā)者，他已經(jīng)開發(fā)了用作數(shù)控機(jī)床加工信息交換的超級模型(Super Model)，其目標(biāo)是用統(tǒng)一的規(guī)范描述所有加工過程。目前這種新的數(shù)據(jù)交換格式已經(jīng)在配備了SIEMENS、FIDIA以及歐洲OSACA-NC數(shù)控系統(tǒng)的原型樣機(jī)上進(jìn)行了驗(yàn)證。 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。在此階段，由于國外的技術(shù)封鎖和我國的基礎(chǔ)條件的限制，數(shù)控技術(shù)的發(fā)展較為緩慢。第二階段是在國家的“六五”、“七五”期間以及“八五”的前期，即引進(jìn)技術(shù)，消化吸收，初步建立起國產(chǎn)化體系階段。在此階段，由于改革開放和國家的重視，以及研究開發(fā)環(huán)境和國際環(huán)境的改善，我國數(shù)控技術(shù)的研究、開發(fā)以及在產(chǎn)品的國產(chǎn)化方面都取得了長足的進(jìn)步。第三階段是在國家的“八五”的后期和“九五”期間，即實(shí)施產(chǎn)業(yè)化的研究，進(jìn)入市場競爭階段。在此階段，我國國產(chǎn)數(shù)控裝備的產(chǎn)業(yè)化取得了實(shí)質(zhì)性進(jìn)步。在“九五”末期，國產(chǎn)數(shù)控機(jī)床的國內(nèi)市場占有率達(dá)50％，配國產(chǎn)數(shù)控系統(tǒng)（普及型）也達(dá)到了10％。 縱觀我國數(shù)控技術(shù)近50年的發(fā)展歷程，特別是經(jīng)過4個5年計劃的攻關(guān)，總體來看取得了以下成績。 a.奠定了數(shù)控技術(shù)發(fā)展的基礎(chǔ)，基本掌握了現(xiàn)代數(shù)控技術(shù)。我國現(xiàn)在已基本掌握了從數(shù)控系統(tǒng)、伺服驅(qū)動、數(shù)控主機(jī)、專機(jī)及其配套件的基礎(chǔ)技術(shù)，其中大部分技術(shù)已具備進(jìn)行商品化開發(fā)的基礎(chǔ)，部分技術(shù)已商品化、產(chǎn)業(yè)化。 b.初步形成了數(shù)控產(chǎn)業(yè)基地。在攻關(guān)成果和部分技術(shù)商品化的基礎(chǔ)上，建立了諸如華中數(shù)控、航天數(shù)控等具有批量生產(chǎn)能力的數(shù)控系統(tǒng)生產(chǎn)廠。蘭州電機(jī)廠、華中數(shù)控等一批伺服系統(tǒng)和伺服電機(jī)生產(chǎn)廠以及北京第一機(jī)床廠、濟(jì)南第一機(jī)床廠等若干數(shù)控主機(jī)生產(chǎn)廠。這些生產(chǎn)廠基本形成了我國的數(shù)控產(chǎn)業(yè)基地。 c.建立了一支數(shù)控研究、開發(fā)、管理人才的基本隊(duì)伍。 雖然在數(shù)控技術(shù)的研究開發(fā)以及產(chǎn)業(yè)化方面取得了長足的進(jìn)步，但我們也要清醒地認(rèn)識到，我國高端數(shù)控技術(shù)的研究開發(fā)，尤其是在產(chǎn)業(yè)化方面的技術(shù)水平現(xiàn)狀與我國的現(xiàn)實(shí)需求還有較大的差距。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(kuò)大趨勢。從國際上來看，對我國數(shù)控技術(shù)水平和產(chǎn)業(yè)化水平估計大致如下。 a.技術(shù)水平上，與國外先進(jìn)水平大約落后10～15年，在高精尖技術(shù)方面則更大。 b.產(chǎn)業(yè)化水平上，市場占有率低，品種覆蓋率小，還沒有形成規(guī)模生產(chǎn)；功能部件專業(yè)化生產(chǎn)水平及成套能力較低；外觀質(zhì)量相對差；可靠性不高，商品化程度不足；國產(chǎn)數(shù)控系統(tǒng)尚未建立自己的品牌效應(yīng)，用戶信心不足。 c.可持續(xù)發(fā)展的能力上，對競爭前數(shù)控技術(shù)的研究開發(fā)、工程化能力較弱；數(shù)控技術(shù)應(yīng)用領(lǐng)域拓展力度不強(qiáng)；相關(guān)標(biāo)準(zhǔn)規(guī)范的研究、制定滯后。 分析存在上述差距的主要原因有以下幾個方面。 a.認(rèn)識方面。對國產(chǎn)數(shù)控產(chǎn)業(yè)進(jìn)程艱巨性、復(fù)雜性和長期性的特點(diǎn)認(rèn)識不足；對市場的不規(guī)范、國外的封鎖加扼殺、體制等困難估計不足；對我國數(shù)控技術(shù)應(yīng)用水平及能力分析不夠。 b.體系方面。從技術(shù)的角度關(guān)注數(shù)控產(chǎn)業(yè)化問題的時候多，從系統(tǒng)的、產(chǎn)業(yè)鏈的角度綜合考慮數(shù)控產(chǎn)業(yè)化問題的時候少；沒有建立完整的高質(zhì)量的配套體系、完善的培訓(xùn)、服務(wù)網(wǎng)絡(luò)等支撐體系。 c.機(jī)制方面。不良機(jī)制造成人才流失，又制約了技術(shù)及技術(shù)路線創(chuàng)新、產(chǎn)品創(chuàng)新，且制約了規(guī)劃的有效實(shí)施，往往規(guī)劃理想，實(shí)施困難。 d.技術(shù)方面。企業(yè)在技術(shù)方面自主創(chuàng)新能力不強(qiáng)，核心技術(shù)的工程化能力不強(qiáng)。機(jī)床標(biāo)準(zhǔn)落后，水平較低，數(shù)控系統(tǒng)新標(biāo)準(zhǔn)研究不夠。 3 對我國數(shù)控技術(shù)和產(chǎn)業(yè)化發(fā)展的戰(zhàn)略思考 3.1 戰(zhàn)略考慮 我國是制造大國，在世界產(chǎn)業(yè)轉(zhuǎn)移中要盡量接受前端而不是后端的轉(zhuǎn)移，即要掌握先進(jìn)制造核心技術(shù)，否則在新一輪國際產(chǎn)業(yè)結(jié)構(gòu)調(diào)整中，我國制造業(yè)將進(jìn)一步“空芯”。我們以資源、環(huán)境、市場為代價，交換得到的可能僅僅是世界新經(jīng)濟(jì)格局中的國際“加工中心”和“組裝中心”，而非掌握核心技術(shù)的制造中心的地位，這樣將會嚴(yán)重影響我國現(xiàn)代制造業(yè)的發(fā)展進(jìn)程。 我們應(yīng)站在國家安全戰(zhàn)略的高度來重視數(shù)控技術(shù)和產(chǎn)業(yè)問題，首先從社會安全看，因?yàn)橹圃鞓I(yè)是我國就業(yè)人口最多的行業(yè)，制造業(yè)發(fā)展不僅可提高人民的生活水平，而且還可緩解我國就業(yè)的壓力，保障社會的穩(wěn)定；其次從國防安全看，西方發(fā)達(dá)國家把高精尖數(shù)控產(chǎn)品都列為國家的戰(zhàn)略物質(zhì)，對我國實(shí)現(xiàn)禁運(yùn)和限制，“東芝事件”和“考克斯報告”就是最好的例證。 3.2 發(fā)展策略 從我國基本國情的角度出發(fā)，以國家的戰(zhàn)略需求和國民經(jīng)濟(jì)的市場需求為導(dǎo)向，以提高我國制造裝備業(yè)綜合競爭能力和產(chǎn)業(yè)化水平為目標(biāo)，用系統(tǒng)的方法，選擇能夠主導(dǎo)21世紀(jì)初期我國制造裝備業(yè)發(fā)展升級的關(guān)鍵技術(shù)以及支持產(chǎn)業(yè)化發(fā)展的支撐技術(shù)、配套技術(shù)作為研究開發(fā)的內(nèi)容，實(shí)現(xiàn)制造裝備業(yè)的跨躍式發(fā)展。 強(qiáng)調(diào)市場需求為導(dǎo)向，即以數(shù)控終端產(chǎn)品為主，以整機(jī)（如量大面廣的數(shù)控車床、銑床、高速高精高性能數(shù)控機(jī)床、典型數(shù)字化機(jī)械、重點(diǎn)行業(yè)關(guān)鍵設(shè)備等）帶動數(shù)控產(chǎn)業(yè)的發(fā)展。重點(diǎn)解決數(shù)控系統(tǒng)和相關(guān)功能部件（數(shù)字化伺服系統(tǒng)與電機(jī)、高速電主軸系統(tǒng)和新型裝備的附件等）的可靠性和生產(chǎn)規(guī)模問題。沒有規(guī)模就不會有高可靠性的產(chǎn)品；沒有規(guī)模就不會有價格低廉而富有競爭力的產(chǎn)品；當(dāng)然，沒有規(guī)模中國的數(shù)控裝備最終難以有出頭之日。 在高精尖裝備研發(fā)方面，要強(qiáng)調(diào)產(chǎn)、學(xué)、研以及最終用戶的緊密結(jié)合，以“做得出、用得上、賣得掉”為目標(biāo)，按國家意志實(shí)施攻關(guān)，以解決國家之急需。 在競爭前數(shù)控技術(shù)方面，強(qiáng)調(diào)創(chuàng)新，強(qiáng)調(diào)研究開發(fā)具有自主知識產(chǎn)權(quán)的技術(shù)和產(chǎn)品，為我國數(shù)控產(chǎn)業(yè)、裝備制造業(yè)乃至整個制造業(yè)的可持續(xù)發(fā)展奠定基礎(chǔ)。 參考文獻(xiàn)： ［1］中國機(jī)床工具工業(yè)協(xié)會 行業(yè)發(fā)展部.CIMT2001巡禮［J］.世界制造技術(shù)與裝備市場，2001(3)：18-20. ［2］梁訓(xùn)王宣 ,周延佑.機(jī)床技術(shù)發(fā)展的新動向［J］.世界制造技術(shù)與裝備市場，2001(3)：21-28. ［3］中國機(jī)床工具工業(yè)協(xié)會 數(shù)控系統(tǒng)分會.CIMT2001巡禮［J］.世界制造技術(shù)與裝備市場，2001(5)：13-17. ［4］楊學(xué)桐，李冬茹，何文立，等?距世紀(jì)數(shù)控機(jī)床技術(shù)發(fā)展戰(zhàn)略研究［M］.北京：國家機(jī)械工業(yè)局，2000. 7 致 謝 畢業(yè)設(shè)計就要結(jié)束了，在這18周左右的時間里，我通過跟老師同學(xué)們一起學(xué)習(xí)研究學(xué)會了很多很多，其中不乏人生的探討，專業(yè)知識更是上了一個新的臺階。 在呼英俊老師老師的指導(dǎo)下，和各位同學(xué)的團(tuán)結(jié)配合下，已經(jīng)基本上掌握了機(jī)械設(shè)計由最初的方案論證到各個零部件以及總裝配圖設(shè)計的全過程，更是掌握了獨(dú)立處理問題的能力，比如查閱技術(shù)文獻(xiàn)、資料、工具書等。 畢業(yè)設(shè)計是檢驗(yàn)我們對四年來所學(xué)知識的綜合應(yīng)用的能力，更是鞏固我們本科階段學(xué)習(xí)的成果，正所謂養(yǎng)兵千日用兵一時，我們正是要學(xué)以致用在關(guān)鍵時候能夠拿出自己的本事那才是真正的人才。 在本次設(shè)計過程中，我所走的每一步都得到了呼老師的精心指導(dǎo)。在此，我對他表示衷心的感謝和由衷的敬意！同時，也感謝同組同學(xué)的團(tuán)結(jié)協(xié)作，熱心幫助！ 馬上就要走入社會了還有很多藥學(xué)的知識，此時感慨萬千，畢業(yè)設(shè)計不僅讓我明白了作為一個人要干一個項(xiàng)目要經(jīng)歷很多的困苦而且有很多的疑問，此時我們要借助老師，網(wǎng)絡(luò)…..獨(dú)立去探索解決每一個問題。其中的快樂才是最大的，大學(xué)就要走完了，畢業(yè)設(shè)計是我最后的作業(yè)，以后的路我會努力做到自己的最好。 最后，向各位指導(dǎo)老師表示最誠摯的謝意！ Numerical control technology and equiping development trend and countermeasure 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 high-tech 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 manufacturing industry all around the world adopts numerical control technology extensively, in order to improve manufacturing capacity and level, improve the adaptive capacity and competitive power to the changeable market of the trends . In addition every industrially developed country in the world also classifies the technology and numerical control equipment of numerical control as the strategic materials of the country, not merely take the great measure to develop one's own numerical control technology and industry, and implement blockading and restrictive policy to our country in view of " high-grade , precision and advanced key technology of numerical control " and equiping. In a word, develop the advanced manufacturing technology taking numerical control technology as the core and already become every world developed country and accelerate economic development in a more cost-effective manner, important way to improve the overall national strength and national position. Numerical control technology is the technology controlled to mechanical movement and working course with digital information, integrated products of electromechanics that the numerical control equipment is the new technology represented by numerical control technology forms to the manufacture industry of the tradition and infiltration of the new developing manufacturing industry, namely the so-called digitization is equipped, its technological range covers a lot of fields: (1)Mechanical manufacturing technology; (2)Information processing , processing , transmission technology; (3)Automatic control technology; (4)Servo drive technology; (5)Technology of the sensor ; (6)Software engineering ,etc.. Development trend of a numerical control technology The application of numerical control technology has not only brought the revolutionary change to manufacturing industry of the tradition, make the manufacturing industry become the industrialized symbol , and with the constant development of numerical control technology and enlargement of the application, the development of some important trades (IT , automobile , light industry , medical treatment ,etc. ) to the national economy and the people's livelihood of his plays a more and more important role, because the digitization that these trades needed to equip has already been the main trend of modern development. Numerical control technology in the world at present and equiping the development trend to see, there is the following several respect [1- ] in its main research focus . 1.A high-speed , high finish machining technology and new trend equipped The efficiency , quality are subjavanufacturing technology. High-speed , high finish machining technology can raise the efficiency greatly , improve the quality and grade of the products, shorten production cycle and improve the market competitive power. Japan carries the technological research association first to classify it as one of the 5 great modern manufacturing technologies for this, learn (CIRP ) to confirm it as the centre in the 21st century and study one of the directions in international production engineering. In the field of car industry, produce one second when beat such as production of 300,000 / vehicle per year, and many variety process it is car that equip key problem that must be solved one of; In the fields of aviation and aerospace industry, spare parts of its processing are mostly the thin wall and thin muscle, rigidity is very bad, the material is aluminium or aluminium alloy, only in a situation that cut the speed and cut strength very small high, could process these muscles , walls . Adopt large-scale whole aluminium alloy method that blank " pay empty " make the wing recently, such large-scale parts as the fuselage ,etc. come to substitute a lot of parts to assemble through numerous rivet , screw and other connection way, make the intensity , rigidity and dependability of the component improved. All these, to processing and equiping the demand which has proposed high-speed , high precise and high flexibility. According to EMO2001 exhibition situation, high-speed machining center is it give speed can reach 80m/min is even high , air transport competent speed can up to 100m/min to be about to enter. A lot of automobile factories in the world at present, including Shanghai General Motors Corporation of our country, have already adopted and substituted and made the lathe up with the production line part that the high-speed machining center makes up . HyperMach lathe of U.S.A. CINCINNATI Company enters to nearly biggest 60m/min of speed, it is 100m/min to be fast, the acceleration reaches 2g, the rotational speed of the main shaft has already reached 60 000r/min. Processing a thin wall of plane parts, spend 30min only, and same part general at a high speed milling machine process and take 3h, the ordinary milling machine is being processed to need 8h; The speed and acceleration of main shaft of dual main shaft lathes of Germany DMG Company are up to 12* separately! 000r/mm and 1g. In machining accuracy, the past 10 years, ordinary progression accuse of machining accuracy of lathe bring 5|ìm up to from 10|ìm already, accurate grades of machining center from 3- 5|ìm, rise to 1- 1.5|ìm, and ultraprecision machining accuracy is it enter nanometer grade to begin already (0.01|ìm). In dependability, MTBF value of the foreign numerical control device has already reached above 6 000h, MTBF value of the servo system reaches above 30000h, demonstrate very high dependability . In order to realize high-speed , high finish machining, if the part of function related to it is electric main shaft , straight line electrical machinery get fast development, the application is expanded further. 1.2 Link and process and compound to process the fast development of the lathe in 5 axes Adopt 5 axles to link the processing of the three-dimensional curved surface part, can cut with the best geometry form of the cutter , not only highly polished, but also efficiency improves by a large margin . It is generally acknowledged , the efficiency of an 5 axle gear beds can equal 2 3 axle gear beds , is it wait for to use the cubic nitrogen boron the milling cutter of ultra hard material is milled and pared at a high speed while quenching the hard steel part, 5 axles link and process 3 constant axles to link and process and give play to higher benefit. Because such reasons as complicated that 5 axles link the numerical control system , host computer structure that but go over, it is several times higher that its price links the numerical control lathe than 3 axles , in addition the technological degree of difficulty of programming is relatively great, have restricted the development of 5 axle gear beds. At present because of electric appearance of main shaft, is it realize 5 axle complex main shaft hair structure processed to link greatly simplify to make, it makes degree of difficulty and reducing by a large margin of the cost, the price disparity of the numerical control system shrinks . So promoted 5 axle gear beds of head of complex main shaft and compound to process the development of the lathe (process the lathe including 5 ). At EMO2001 exhibition, new Japanese 5 of worker machine process lathe adopt complex main shaft hair, can realize the processing of 4 vertical planes and processing of the wanton angle , make 5 times process and 5 axles are processed and can be realized on the same lathe, can also realize the inclined plane and pour the processing of the hole of awls . Germany DMG Company exhibits the DMUVoution series machining center, but put and insert and put processing and 5 axles 5 times to link and process in once, can be controlled by CNC system or CAD/CAM is controlled directly or indirectly. 1.3 Become the main trend of systematic development of contemporary numerical control intelligently , openly , networkedlily The numerical control equipment in the 21st century will be sure the intelligent system, the intelligent content includes all respects in the numerical control system: It is intelligent in order to pursue the efficiency of processing and process quality, control such as the self-adaptation of the processing course, the craft parameter is produced automatically; 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; The ones that simplified programming , simplified operating aspect are intelligent, for instance intelligent automatic programming , intelligent man-machine interface ,etc.; There are content of intelligence diagnose , intelligent monitoring , diagnosis convenient to be systematic and maintaining ,etc.. Produce the existing problem for the industrialization of solving the traditional numerical control system sealing and numerical control application software. A lot of countries carry on research to the open numerical control system at present, such as NGC of U.S.A. (The Next Generation Work-Station/Machine Control), OSACA of European Community (Open System Architecture for Control within Automation Systems), OSEC (Open System Environment for Controller ) of Japan, ONC (Open Numerical Control System ) of China ,etc.. The numerical control system melts to become the future way of the numerical control system open. The so-called open numerical control system is the development of the numerical control system can be on unified operation platform, face the lathe producer and end user, through changing, increasing or cutting out the structure target(numerical control function), form the seriation, and can use users specially conveniently and the technical know-how is integrated in the control system, realize the open numerical control system of different variety , different grade fast, form leading brand products with distinct distinction. System structure norm of the open numerical control system at present, communication norm , disposing norm , operation platform , numerical control systematic function storehouse and numerical control systematic function software developing 包含ument ,etc. are the core of present research. The networked numerical control equipment is a new light spot of the fair of the internationally famous lathe in the past two years. Meeting production line , manufacture system , demand for the information integration of manufacturing company networkedly greatly of numerical control equipment, realize new manufacture mode such as quick make , fictitious enterprise , basic Entrance that the whole world make too. Some domestic and international famous numerical control lathes and systematic manufacturing companies of numerical control have all introduced relevant new concepts and protos of a machine in the past two years, if in EMO2001 exhibition, " CyberProduction Center " that the company exhibits of mountain rugged campstool gram in Japan (Mazak ) (intellectual central production control unit, abbreviated as CPC); The lathe company of Japanese big Wei (Okuma ) exhibits " IT plaza " (the information technology square , is abbreviated as IT square ); Open Manufacturing Environment that the company exhibits of German Siemens (Siemens ) (open the manufacturing environment, abbreviated as OME),etc., have reflected numerical control machine tooling to the development trend of networked direction. 1.4 Pay attention to the new technical standard , normal setting-up 1.4.1 Design the norm of developing about the numerical control system As noted previously, there are better commonability , flexibility , adaptability , expanding in the open numerical control system, such countries as U.S.A. , European Community and Japan ,etc. implement the strategic development plan one after another , carry on the research and formulation of the systematic norm (OMAC , OSACA , OSEC ) of numerical control of the open system structure, 3 biggest economies in the world have carried on the formulation that nearly the same science planned and standardized in a short time, have indicated a new arrival of period of change of numerical control technology. Our country started the research and formulation of standardizing the frame of ONC numerical control system of China too in 2000. 1.4.2 About the numerical control standard The numerical control standard is a kind of trend of information-based development of manufacturing industry. Information exchange among 50 years after numerical control technology was born was all because of ISO6983 standard, namely adopt G, M code describes how processes, its essential characteristic faces the processing course, obviously, he can't meet high-speed development of modern numerical control technology's needs more and more already. For this reason, studying and making a kind of new CNC system standard ISO14649 (STEP-NC) in the world, its purpose is to offer a kind of neutral mechanism not depending on the concrete system , can describe the unified data model in cycle of whole life of the products , thus realize the whole manufacture process, standardization of and even each industrial field product information. The appearance of STEP-NC may be a revolution of the technological field of the numerical control, on the development and even the whole manufacturing industry of numerical control technology , will exert a far-reaching influence. First of all, STEP-NC puts forward a kind of brand-new manufacture idea , in the traditional manufacture idea, NC processes the procedures to all concentrate on individual computer. Under the new standard, NC procedure can be dispersed on Internet, this is exactly a direction of open , networked development of numerical control technology. Secondly, STEP-NC numerical control system can also reduce and process the drawing (about 75% ) , process the procedure to work out the time (about 35% ) and process the time (about 50% ) greatly . At present, American-European countries pay much attention to the research of STEP-NC, Europe initiates IMS plan (1999.1.1- 2001.12.3 ) of STEP-NC. 20 CAD/CAM/CAPP/CNC users , manufacturers and academic organizations from Europe and Japan participated in this plan. STEP Tools Company of U.S.A. is a developer of the data interchange software of manufacturing industry in the global range, he has already developed the super model (Super Model ) which accuses of information exchange of machine tooling by counting, its goal is to describe all processing courses with the unified norm. Such new data interchange form has already been verified in allocating the SIEMENS , FIDIA and European OSACA-NC numerical control at present. 2 pairs of basic estimations of technology and industry development of numerical control of our country The technology of numerical control of our country started in 1958, the development course in the past 50 years can roughly be divided into 3 stages: The first stage is from 1958 to 1979, namely closed developing stage. In this stages, because technology of foreign countries blockade and basic restriction of terms of our country, the development of numerical control technology is comparatively slow. During " Sixth Five-Year Plan Period " , " the Seventh Five-Year Plan Period " of the country in second stage and earlier stage in " the Eighth Five-Year Plan Period ", namely introduce technology, digest and assimilate, the stage of establishing the system of production domesticization arisesing tentatively. At this stage , because of reform and opening-up and national attention , and study the improvement of the development environment and international environment, research , development and all making considerable progress in production domesticization of the products of the technology of numerical control of our country. The third stage is and during the " Ninth Five-Year Plan Period " on the later stage in " the Eighth Five-Year Plan Period " of the country, namely implement the research of industrialization, enter market competition stage. At this stage , made substantive progress in industrialization of the domestic numerical control equipment of our country. In latter stage for " the Ninth Five-Year Plan ", the domestic occupation rate of market of the domestic numerical control lathe is up to 50%, it is up to 10% too to mix the domestic numerical control system (popular ). Make a general survey of the development course in the past 50 years of technology of numerical control of our country, especially through tackling key problems of 4 Five-Year Plans, all in all has made following achievements. a.Have establish the foundation of the technical development of numerical control, has mastered modern numerical control technology basically. Our country has already, the numerical control host computer , basic technology of special plane and fittings grasped and driven from the numerical control system and servoly basically now, among them most technology have already possessed and commercialized the foundation developed , some technology has already, industrialization commercialized. b.Have formed the industrial base of numerical control tentatively. In tackling key problems the foundation that the achievement and some technology commercialize , 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 computer 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. c.Have set up a numerical control research, development , managerial talent's basic team . Though has made considerable progress in research and development and industrialization of numerical control technology, but we will realize soberly, the research and development of the technology of advanced numerical control of our country, especially there is greater disparity in current situation and current demand of our country of engineering level in industrialization. Though very fast from watching the development of our country vertically, have disparity horizontally more than (compare foreign countries with ) not merely engineering level, there is disparity too in development speed in some aspects, namely the engineering level disparity between some high-grade , precision and advanced numerical control equipment has the tendency to expand . Watch from world , estimate roughly as follows about the engineering level of numerical control of our country and industrialization level. a.On the engineering level,