CA6140車床后托架的加工工藝及夾具設(shè)計(jì)831001【含CAD圖紙】

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南京理工大學(xué)泰州科技學(xué)院 學(xué)生畢業(yè)設(shè)計(jì)（論文）中期檢查表 學(xué)生姓名 萬小強(qiáng) 學(xué) 號(hào) 0501510136 指導(dǎo)教師 路建萍 張少文 選題情況 課題名稱 CA6140車床后托架的加工工藝及夾具設(shè)計(jì) 難易程度 偏難 適中 √ 偏易 工作量 較大 合理 √ 較小 符合規(guī)范化的要求 任務(wù)書 有 √ 無 開題報(bào)告 有 √ 無 外文翻譯質(zhì)量 優(yōu) 良 √ 中 差 學(xué)習(xí)態(tài)度、出勤情況 好 一般 √ 差 工作進(jìn)度 快 按計(jì)劃進(jìn)行 √ 慢 中期工作匯報(bào)及解答問題情況 優(yōu) 良 中 √ 差 中期成績(jī)?cè)u(píng)定：中 所在專業(yè)意見： 學(xué)習(xí)態(tài)度認(rèn)真，基本按進(jìn)度和規(guī)定要求完成設(shè)計(jì)任務(wù)。 負(fù)責(zé)人： 2009年 4 月1 日 南 京 理 工 大 學(xué) 畢業(yè)設(shè)計(jì)（論文）任務(wù)書 系 部： 機(jī)械工程系 專 業(yè)： 機(jī)械工程及自動(dòng)化 學(xué) 生 姓 名： 萬小強(qiáng) 學(xué) 號(hào)： 0501510136 設(shè)計(jì)(論文)題目： CA6140車床后托架的 加工工藝及夾具設(shè)計(jì) 起 迄 日 期: 2009年3月09日～ 6月14日 設(shè)計(jì)(論文)地點(diǎn): 南京理工大學(xué)泰州科技學(xué)院 指 導(dǎo) 教 師: 路建萍 張少文 專業(yè)負(fù)責(zé)人: 龔光容 發(fā)任務(wù)書日期: 2009年2月26日  任務(wù)書填寫要求 1．畢業(yè)設(shè)計(jì)（論文）任務(wù)書由指導(dǎo)教師根據(jù)各課題的具體情況填寫，經(jīng)學(xué)生所在專業(yè)的負(fù)責(zé)人審查、學(xué)院（系）領(lǐng)導(dǎo)簽字后生效。此任務(wù)書應(yīng)在畢業(yè)設(shè)計(jì)（論文）開始前一周內(nèi)填好并發(fā)給學(xué)生； 2．任務(wù)書內(nèi)容必須用黑墨水筆工整書寫或按教務(wù)處統(tǒng)一設(shè)計(jì)的電子文檔標(biāo)準(zhǔn)格式（可從教務(wù)處網(wǎng)頁上下載）打印，不得隨便涂改或潦草書寫，禁止打印在其它紙上后剪貼； 3．任務(wù)書內(nèi)填寫的內(nèi)容，必須和學(xué)生畢業(yè)設(shè)計(jì)（論文）完成的情況相一致，若有變更，應(yīng)當(dāng)經(jīng)過所在專業(yè)及學(xué)院（系）主管領(lǐng)導(dǎo)審批后方可重新填寫； 4．任務(wù)書內(nèi)有關(guān)“學(xué)院（系）”、“專業(yè)”等名稱的填寫，應(yīng)寫中文全稱，不能寫數(shù)字代碼。學(xué)生的“學(xué)號(hào)”要寫全號(hào)（2000級(jí)為10位數(shù)），不能只寫最后2位或1位數(shù)字； 5．任務(wù)書內(nèi)“主要參考文獻(xiàn)”的填寫，應(yīng)按照國(guó)標(biāo)GB 7714—87《文后參考文獻(xiàn)著錄規(guī)則》的要求書寫，不能有隨意性； 6．有關(guān)年月日等日期的填寫，應(yīng)當(dāng)按照國(guó)標(biāo)GB/T 7408—94《數(shù)據(jù)元和交換格式、信息交換、日期和時(shí)間表示法》規(guī)定的要求，一律用阿拉伯?dāng)?shù)字書寫。如“2004年3月15日”或“2004-03-15”。 畢 業(yè) 設(shè) 計(jì)（論 文）任 務(wù) 書 1．本畢業(yè)設(shè)計(jì)（論文）課題應(yīng)達(dá)到的目的： 本課題主要是編制年產(chǎn)5000臺(tái)CA6140機(jī)床后托架的機(jī)加工工藝規(guī)程，并設(shè)計(jì)出主要加工工序的專用夾具。要求學(xué)生在對(duì)機(jī)床后托架的結(jié)構(gòu)形式及技術(shù)要求進(jìn)行認(rèn)真分析，制訂出較為合理的機(jī)加工工藝規(guī)程，并詳細(xì)設(shè)計(jì)出主要加工工序的專用夾具，保證零件生產(chǎn)的效率和精度。通過這一典型零件的生產(chǎn)工藝及夾具的設(shè)計(jì)，培養(yǎng)學(xué)生綜合運(yùn)用所學(xué)專業(yè)知識(shí)開發(fā)產(chǎn)品新工藝、設(shè)計(jì)新夾具及解決工程實(shí)際問題的能力。 2．本畢業(yè)設(shè)計(jì)（論文）課題任務(wù)的內(nèi)容和要求（包括原始數(shù)據(jù)、技術(shù)要求、工作要求等）： 要求學(xué)生在對(duì)機(jī)床后托架的結(jié)構(gòu)形式及技術(shù)要求進(jìn)行認(rèn)真分析，制訂出較為合理的機(jī)加工工藝規(guī)程，并詳細(xì)設(shè)計(jì)出主要加工工序的專用夾具，保證零件生產(chǎn)的效率和精度。具體內(nèi)容及要求如下： （1）調(diào)查研究、查閱及翻譯文獻(xiàn)資料，撰寫開題報(bào)告； （2）分析零件的結(jié)構(gòu)及技術(shù)要求； （3）確定加工方法，編制加工工藝規(guī)程； （4）銑底面、鉆三杠孔及鉆底面孔夾具的詳細(xì)設(shè)計(jì)，并設(shè)計(jì)出關(guān)鍵的零件； （5）文檔整理、撰寫畢業(yè)設(shè)計(jì)說明書及使用說明書。 相關(guān)設(shè)計(jì)技術(shù)條件及要求如下： （1）年產(chǎn)量5000臺(tái)； （2）零件圖已經(jīng)給出。 畢 業(yè) 設(shè) 計(jì)（論 文）任 務(wù) 書 3．對(duì)本畢業(yè)設(shè)計(jì)（論文）課題成果的要求〔包括畢業(yè)設(shè)計(jì)論文、圖表、實(shí)物樣品等〕： （1）資料翻譯譯文及開題報(bào)告； （2）機(jī)加工工藝規(guī)程的制定； （3）銑底面、鉆三杠孔及鉆底面孔夾具的詳細(xì)設(shè)計(jì)及關(guān)鍵零部件的設(shè)計(jì)； （4）畢業(yè)設(shè)計(jì)說明書及使用說明書。 4．主要參考文獻(xiàn)： [1] 孫桓,陳作模,葛文杰.機(jī)械原理[M].第七版,北京:高等教育出版社,2006. [2] 濮良貴,紀(jì)名剛.機(jī)械設(shè)計(jì)[M].第八版,北京:高等教育出版社,2006. [3] 左建民.液壓與氣壓傳動(dòng)[M].北京:機(jī)械工業(yè)出版社,2007. [4] 劉朝儒,吳志軍,高政一.機(jī)械制圖[M].第五版,北京:高等教育出版社，2006. [5] 成大先.機(jī)械設(shè)計(jì)手冊(cè)[M].北京：化學(xué)工業(yè)出版社,2000. [6] 馮辛安.機(jī)械制造裝備設(shè)計(jì)[M].北京:機(jī)械工業(yè)出版社,1999. [7] 韓建海.數(shù)控技術(shù)及裝備[M].武漢:華中科技大學(xué)出版社,2007. [8] 龔仲華.機(jī)械制造技術(shù)[M].北京：機(jī)械工業(yè)出版社，2004. [9] 鄭曉峰.數(shù)控技術(shù)及應(yīng)用[M].北京：機(jī)械工業(yè)出版社，2003. [10] 韓建海.先進(jìn)制造系統(tǒng)[M].武漢:華中科技大學(xué)出版社,2007. [11] 于駿一．典型零件制造工藝[M]．北京：機(jī)械工業(yè)出版社，1989. [12] 王季琨．機(jī)械制造工藝學(xué)．天津[M]：天津大學(xué)出版社，2004. [13] 李宏勝，黃尚先.機(jī)床工藝[M].北京：機(jī)械工業(yè)出版社，2005. [14] 李峻勤.數(shù)控機(jī)床的工藝[M].北京：國(guó)防工業(yè)出版社，1999. [15] 陳貴榮．先進(jìn)制造工藝[M].北京：機(jī)械工業(yè)出版社，2003. [16] 于國(guó)良．普通機(jī)床的工藝[M].北京：國(guó)防工業(yè)出版社，2000. 畢 業(yè) 設(shè) 計(jì)（論 文）任 務(wù) 書 5．本畢業(yè)設(shè)計(jì)（論文）課題工作進(jìn)度計(jì)劃： 起 迄 日 期 工 作 內(nèi) 容 2009年 3月9日 ～ 3 月15 日 3月16日 ～ 3 月22 日 3月23日 ～ 4 月12日 4月13日 ～ 5 月10日 5月11日 ～ 5 月31 日 6月1日 ～ 6 月7 日 6月8日 ～ 6 月14 日 接受畢業(yè)設(shè)計(jì)任務(wù)，熟悉畢業(yè)設(shè)計(jì)要求；查閱資料，完成外文資料翻譯工作。 撰寫開題報(bào)告及文獻(xiàn)綜述。 零件的結(jié)構(gòu)形式及技術(shù)要求的分析。 制定出機(jī)加工工藝規(guī)程。 主要加工工序夾具的詳細(xì)設(shè)計(jì)及關(guān)鍵零部件的設(shè)計(jì)。 文檔整理、撰寫畢業(yè)設(shè)計(jì)說明書。 準(zhǔn)備論文答辯。 所在專業(yè)審查意見： 負(fù)責(zé)人： 年 月 日 學(xué)院（系）意見： 院（系）領(lǐng)導(dǎo)： 年 月 日 南京理工大學(xué)泰州科技學(xué)院 畢業(yè)設(shè)計(jì)(論文)外文資料翻譯 系 部： 機(jī)械工程系 專 業(yè)： 機(jī)械工程及自動(dòng)化 姓 名： 萬小強(qiáng) 學(xué) 號(hào)： 0501510136 外文出處：FOREIGN PATENT DOCUMENTS. 23～25.2002. 附 件： 1.外文資料翻譯譯文；2.外文原文。 指導(dǎo)教師評(píng)語： 該譯文大體正確地表達(dá)了原文意思，敘述條理清楚，語句通順，翻譯質(zhì)量達(dá)到規(guī)定的要求，個(gè)別專業(yè)術(shù)語譯文不夠準(zhǔn)確。 簽名： 2009年 3月 18日 注：請(qǐng)將該封面與附件裝訂成冊(cè)。 附件1：外文資料翻譯譯文 數(shù)控技術(shù)發(fā)展趨勢(shì) 1 國(guó)內(nèi)外數(shù)控系統(tǒng)發(fā)展概況 隨著計(jì)算機(jī)技術(shù)的高速發(fā)展，傳統(tǒng)的制造業(yè)開始了根本性變革，各工業(yè)發(fā)達(dá)國(guó)家投入巨資，對(duì)現(xiàn)代制造技術(shù)進(jìn)行研究開發(fā)，提出了全新的制造模式。在現(xiàn)代制造系統(tǒng)中，數(shù)控技術(shù)是關(guān)鍵技術(shù)，它集微電子、計(jì)算機(jī)、信息處理、自動(dòng)檢測(cè)、自動(dòng)控制等高新技術(shù)于一體，具有高精度、高效率、柔性自動(dòng)化等特點(diǎn)，對(duì)制造業(yè)實(shí)現(xiàn)柔性自動(dòng)化、集成化、智能化起著舉足輕重的作用。目前，數(shù)控技術(shù)正在發(fā)生根本性變革，由專用型封閉式開環(huán)控制模式向通用型開放式實(shí)時(shí)動(dòng)態(tài)全閉環(huán)控制模式發(fā)展。在集成化基礎(chǔ)上，數(shù)控系統(tǒng)實(shí)現(xiàn)了超薄型、超小型化；在智能化基礎(chǔ)上，綜合了計(jì)算機(jī)、多媒體、模糊控制、神經(jīng)網(wǎng)絡(luò)等多學(xué)科技術(shù)，數(shù)控系統(tǒng)實(shí)現(xiàn)了高速、高精、高效控制，加工過程中可以自動(dòng)修正、調(diào)節(jié)與補(bǔ)償各項(xiàng)參數(shù)，實(shí)現(xiàn)了在線診斷和智能化故障處理；在網(wǎng)絡(luò)化基礎(chǔ)上，CAD/CAM與數(shù)控系統(tǒng)集成為一體，機(jī)床聯(lián)網(wǎng)，實(shí)現(xiàn)了中央集中控制的群控加工。 長(zhǎng)期以來，我國(guó)的數(shù)控系統(tǒng)為傳統(tǒng)的封閉式體系結(jié)構(gòu)，CNC只能作為非智能的機(jī)床運(yùn)動(dòng)控制器。加工過程變量根據(jù)經(jīng)驗(yàn)以固定參數(shù)形式事先設(shè)定，加工程序在實(shí)際加工前用手工方式或通過CAD/CAM及自動(dòng)編程系統(tǒng)進(jìn)行編制。CAD/CAM和CNC之間沒有反饋控制環(huán)節(jié)，整個(gè)制造過程中CNC只是一個(gè)封閉式的開環(huán)執(zhí)行機(jī)構(gòu)。在復(fù)雜環(huán)境以及多變條件下，加工過程中的刀具組合、工件材料、主軸轉(zhuǎn)速、進(jìn)給速率、刀具軌跡、切削深度、步長(zhǎng)、加工余量等加工參數(shù)，無法在現(xiàn)場(chǎng)環(huán)境下根據(jù)外部干擾和隨機(jī)因素實(shí)時(shí)動(dòng)態(tài)調(diào)整，更無法通過反饋控制環(huán)節(jié)隨機(jī)修正CAD/CAM中的設(shè)定量，因而影響CNC的工作效率和產(chǎn)品加工質(zhì)量。由此可見，傳統(tǒng)CNC系統(tǒng)的這種固定程序控制模式和封閉式體系結(jié)構(gòu)，限制了CNC向多變量智能化控制發(fā)展，已不適應(yīng)日益復(fù)雜的制造過程，因此，對(duì)數(shù)控技術(shù)實(shí)行變革勢(shì)在必行。 2 數(shù)控技術(shù)發(fā)展趨勢(shì) 2.1　性能發(fā)展方向 (1) 高速高精高效化　速度、精度和效率是機(jī)械制造技術(shù)的關(guān)鍵性能指標(biāo)。由于采用了高速CPU芯片、RISC芯片、多CPU控制系統(tǒng)以及帶高分辨率絕對(duì)式檢測(cè)元件的交流數(shù)字伺服系統(tǒng)，同時(shí)采取了改善機(jī)床動(dòng)態(tài)、靜態(tài)特性等有效措施，機(jī)床的高速高精高效化已大大提高。 (2) 柔性化　包含兩方面：數(shù)控系統(tǒng)本身的柔性，數(shù)控系統(tǒng)采用模塊化設(shè)計(jì)，功能覆蓋面大，可裁剪性強(qiáng)，便于滿足不同用戶的需求；群控系統(tǒng)的柔性，同一群控系統(tǒng)能依據(jù)不同生產(chǎn)流程的要求，使物料流和信息流自動(dòng)進(jìn)行動(dòng)態(tài)調(diào)整，從而最大限度地發(fā)揮群控系統(tǒng)的效能。 (3) 工藝復(fù)合性和多軸化　以減少工序、輔助時(shí)間為主要目的的復(fù)合加工，正朝著多軸、多系列控制功能方向發(fā)展。數(shù)控機(jī)床的工藝復(fù)合化是指工件在一臺(tái)機(jī)床上一次裝夾后，通過自動(dòng)換刀、旋轉(zhuǎn)主軸頭或轉(zhuǎn)臺(tái)等各種措施，完成多工序、多表面的復(fù)合加工。數(shù)控技術(shù)軸，西門子880系統(tǒng)控制軸數(shù)可達(dá)24軸。 (4) 實(shí)時(shí)智能化　早期的實(shí)時(shí)系統(tǒng)通常針對(duì)相對(duì)簡(jiǎn)單的理想環(huán)境，其作用是如何調(diào)度任務(wù)，以確保任務(wù)在規(guī)定期限內(nèi)完成。而人工智能則試圖用計(jì)算模型實(shí)現(xiàn)人類的各種智能行為?？茖W(xué)技術(shù)發(fā)展到今天，實(shí)時(shí)系統(tǒng)和人工智能相互結(jié)合，人工智能正向著具有實(shí)時(shí)響應(yīng)的、更現(xiàn)實(shí)的領(lǐng)域發(fā)展，而實(shí)時(shí)系統(tǒng)也朝著具有智能行為的、更加復(fù)雜的應(yīng)用發(fā)展，由此產(chǎn)生了實(shí)時(shí)智能控制這一新的領(lǐng)域。在數(shù)控技術(shù)領(lǐng)域，實(shí)時(shí)智能控制的研究和應(yīng)用正沿著幾個(gè)主要分支發(fā)展：自適應(yīng)控制、模糊控制、神經(jīng)網(wǎng)絡(luò)控制、專家控制、學(xué)習(xí)控制、前饋控制等。例如在數(shù)控系統(tǒng)中配備編程專家系統(tǒng)、故障診斷專家系統(tǒng)、參數(shù)自動(dòng)設(shè)定和刀具自動(dòng)管理及補(bǔ)償?shù)茸赃m應(yīng)調(diào)節(jié)系統(tǒng)，在高速加工時(shí)的綜合運(yùn)動(dòng)控制中引入提前預(yù)測(cè)和預(yù)算功能、動(dòng)態(tài)前饋功能，在壓力、溫度、位置、速度控制等方面采用模糊控制，使數(shù)控系統(tǒng)的控制性能大大提高，從而達(dá)到最佳控制的目的。 2.2　功能發(fā)展方向 (1) 用戶界面圖形化　用戶界面是數(shù)控系統(tǒng)與使用者之間的對(duì)話接口。由于不同用戶對(duì)界面的要求不同，因而開發(fā)用戶界面的工作量極大，用戶界面成為計(jì)算機(jī)軟件研制中最困難的部分之一。當(dāng)前INTERNET、虛擬現(xiàn)實(shí)、科學(xué)計(jì)算可視化及多媒體等技術(shù)也對(duì)用戶界面提出了更高要求。圖形用戶界面極大地方便了非專業(yè)用戶的使用，人們可以通過窗口和菜單進(jìn)行操作，便于藍(lán)圖編程和快速編程、三維彩色立體動(dòng)態(tài)圖形顯示、圖形模擬、圖形動(dòng)態(tài)跟蹤和仿真、不同方向的視圖和局部顯示比例縮放功能的實(shí)現(xiàn)。 (2) 科學(xué)計(jì)算可視化　科學(xué)計(jì)算可視化可用于高效處理數(shù)據(jù)和解釋數(shù)據(jù)，使信息交流不再局限于用文字和語言表達(dá)，而可以直接使用圖形、圖像、動(dòng)畫等可視信息?？梢暬夹g(shù)與虛擬環(huán)境技術(shù)相結(jié)合，進(jìn)一步拓寬了應(yīng)用領(lǐng)域，如無圖紙?jiān)O(shè)計(jì)、虛擬樣機(jī)技術(shù)等，這對(duì)縮短產(chǎn)品設(shè)計(jì)周期、提高產(chǎn)品質(zhì)量、降低產(chǎn)品成本具有重要意義。在數(shù)控技術(shù)領(lǐng)域，可視化技術(shù)可用于CAD/CAM，如自動(dòng)編程設(shè)計(jì)、參數(shù)自動(dòng)設(shè)定、刀具補(bǔ)償和刀具管理數(shù)據(jù)的動(dòng)態(tài)處理和顯示以及加工過程的可視化仿真演示等。 (3) 插補(bǔ)和補(bǔ)償方式多樣化　多種插補(bǔ)方式如直線插補(bǔ)、圓弧插補(bǔ)、圓柱插補(bǔ)、空間橢圓曲面插補(bǔ)、螺紋插補(bǔ)、極坐標(biāo)插補(bǔ)、2D+2螺旋插補(bǔ)、NANO插補(bǔ)、NURBS插補(bǔ)(非均勻有理B樣條插補(bǔ))、樣條插補(bǔ)(A、B、C樣條)、多項(xiàng)式插補(bǔ)等。多種補(bǔ)償功能如間隙補(bǔ)償、垂直度補(bǔ)償、象限誤差補(bǔ)償、螺距和測(cè)量系統(tǒng)誤差補(bǔ)償、與速度相關(guān)的前饋補(bǔ)償、溫度補(bǔ)償、帶平滑接近和退出以及相反點(diǎn)計(jì)算的刀具半徑補(bǔ)償?shù)取? (4) 內(nèi)裝高性能PLC　數(shù)控系統(tǒng)內(nèi)裝高性能PLC控制模塊，可直接用梯形圖或高級(jí)語言編程，具有直觀的在線調(diào)試和在線幫助功能。編程工具中包含用于車床銑床的標(biāo)準(zhǔn)PLC用戶程序?qū)嵗?，用戶可在?biāo)準(zhǔn)PLC用戶程序基礎(chǔ)上進(jìn)行編輯修改，從而方便地建立自己的應(yīng)用程序。 (5) 多媒體技術(shù)應(yīng)用　多媒體技術(shù)集計(jì)算機(jī)、聲像和通信技術(shù)于一體，使計(jì)算機(jī)具有綜合處理聲音、文字、圖像和視頻信息的能力。在數(shù)控技術(shù)領(lǐng)域，應(yīng)用多媒體技術(shù)可以做到信息處理綜合化、智能化，在實(shí)時(shí)監(jiān)控系統(tǒng)和生產(chǎn)現(xiàn)場(chǎng)設(shè)備的故障診斷、生產(chǎn)過程參數(shù)監(jiān)測(cè)等方面有著重大的應(yīng)用價(jià)值。 2.3　體系結(jié)構(gòu)的發(fā)展 (1) 集成化　采用高度集成化CPU、RISC芯片和大規(guī)?？删幊碳呻娐稦PGA、EPLD、CPLD以及專用集成電路ASIC芯片，可提高數(shù)控系統(tǒng)的集成度和軟硬件運(yùn)行速度。應(yīng)用FPD平板顯示技術(shù)，可提高顯示器性能。平板顯示器具有科技含量高、重量輕、體積小、功耗低、便于攜帶等優(yōu)點(diǎn)，可實(shí)現(xiàn)超大尺寸顯示，成為和CRT抗衡的新興顯示技術(shù)，是21世紀(jì)顯示技術(shù)的主流。應(yīng)用先進(jìn)封裝和互連技術(shù)，將半導(dǎo)體和表面安裝技術(shù)融為一體。通過提高集成電路密度、減少互連長(zhǎng)度和數(shù)量來降低產(chǎn)品價(jià)格，改進(jìn)性能，減小組件尺寸，提高系統(tǒng)的可靠性。 (2) 模塊化　硬件模塊化易于實(shí)現(xiàn)數(shù)控系統(tǒng)的集成化和標(biāo)準(zhǔn)化。根據(jù)不同的功能需求，將基本模塊，如CPU、存儲(chǔ)器、位置伺服、PLC、輸入輸出接口、通訊等模塊，作成標(biāo)準(zhǔn)的系列化產(chǎn)品，通過積木方式進(jìn)行功能裁剪和模塊數(shù)量的增減，構(gòu)成不同檔次的數(shù)控系統(tǒng)。 (3) 網(wǎng)絡(luò)化　機(jī)床聯(lián)網(wǎng)可進(jìn)行遠(yuǎn)程控制和無人化操作。通過機(jī)床聯(lián)網(wǎng)，可在任何一臺(tái)機(jī)床上對(duì)其它機(jī)床進(jìn)行編程、設(shè)定、操作、運(yùn)行，不同機(jī)床的畫面可同時(shí)顯示在每一臺(tái)機(jī)床的屏幕上。 (4) 通用型開放式閉環(huán)控制模式　采用通用計(jì)算機(jī)組成總線式、模塊化、開放式、嵌入式體系結(jié)構(gòu)，便于裁剪、擴(kuò)展和升級(jí)，可組成不同檔次、不同類型、不同集成程度的數(shù)控系統(tǒng)。閉環(huán)控制模式是針對(duì)傳統(tǒng)的數(shù)控系統(tǒng)僅有的專用型單機(jī)封閉式開環(huán)控制模式提出的。由于制造過程是一個(gè)具有多變量控制和加工工藝綜合作用的復(fù)雜過程，包含諸如加工尺寸、形狀、振動(dòng)、噪聲、溫度和熱變形等各種變化因素，因此，要實(shí)現(xiàn)加工過程的多目標(biāo)優(yōu)化，必須采用多變量的閉環(huán)控制，在實(shí)時(shí)加工過程中動(dòng)態(tài)調(diào)整加工過程變量。加工過程中采用開放式通用型實(shí)時(shí)動(dòng)態(tài)全閉環(huán)控制模式，易于將計(jì)算機(jī)實(shí)時(shí)智能技術(shù)、網(wǎng)絡(luò)技術(shù)、多媒體技術(shù)、CAD/CAM、伺服控制、自適應(yīng)控制、動(dòng)態(tài)數(shù)據(jù)管理及動(dòng)態(tài)刀具補(bǔ)償、動(dòng)態(tài)仿真等高新技術(shù)融于一體，構(gòu)成嚴(yán)密的制造過程閉環(huán)控制體系，從而實(shí)現(xiàn)集成化、智能化、網(wǎng)絡(luò)化。 3　智能化新一代PCNC數(shù)控系統(tǒng) 當(dāng)前開發(fā)研究適應(yīng)于復(fù)雜制造過程的、具有閉環(huán)控制體系結(jié)構(gòu)的、智能化新一代PCNC數(shù)控系統(tǒng)已成為可能。智能化新一代PCNC數(shù)控系統(tǒng)將計(jì)算機(jī)智能技術(shù)、網(wǎng)絡(luò)技術(shù)、CAD/CAM、伺服控制、自適應(yīng)控制、動(dòng)態(tài)數(shù)據(jù)管理及動(dòng)態(tài)刀具補(bǔ)償、動(dòng)態(tài)仿真等高新技術(shù)融于一體，形成嚴(yán)密的制造過程閉環(huán)控制體系。 附件2：外文原文 NC technology development trends 1 NC system developments at home and abroad With the rapid development of computer technology, the traditional beginning of a fundamental change manufacturing, the industrial developed countries spent huge sums of money on the modern manufacturing technology research and development, to create a new model. In modern manufacturing systems, CNC technology is the key to technology, which combines microelectronics, computers, information processing, automatic detection, automatic control, such as the integration of advanced, a high-precision, high-efficiency, flexible automation, and other characteristics, the manufacturing industry Flexible automation, integrated, intelligent play the pivotal role. At present, NC technology is undergoing a fundamental change, from a special closed-loop control mode to general-purpose real-time dynamic open all closed-loop control mode. In the integrated on the basis of the CNC systems ultra-thin, ultra-light; on the basis of the intelligent, integrated computers, multimedia, fuzzy control, neural network and other technical disciplines, NC system to achieve high-speed, high-precision, Efficient control, automatic processing can be amended to regulate compensation and the parameters for an online intelligent fault diagnosis and treatment of the network based on the CAD / CAM and CNC systems integration as one machine network, makes the central government centralized control of the group control processing. For a long time, China's CNC system for traditional closed architecture, but only as a non-intelligent CNC machine controller. Process variables based on experience in the form of pre-fixed parameters, processing procedures before the actual processing by hand or through CAD / CAM and automatic programming system prepared. CAD / CAM and CNC have no feedback control link, the entire manufacturing process CNC is a closed ring-opening implementing agencies. In a complex and changing environment under the conditions of processing tool in the process of composition, workpiece material, spindle speed, feed rate, tool path, cutting depth, step, allowance and other processing parameters, not at the scene circumstances under external interference and real-time dynamic random factors, not by random amendment feedback control link CAD / CAM settings volume, in turn, affect the work of CNC machining efficiency and product quality. Clearly, the traditional fixed CNC system that controlled mode and closed architecture, limiting the CNC to the development of more intelligent control variables, can no longer meet the increasingly complex manufacturing process, therefore, the CNC technology in the potential for change inevitable. 2 NC technology development trends 2.1 Performance development direction (1) high-speed high-precision efficient speed, accuracy and efficiency of machinery manufacturing technology is the key performance indicators. As a result of the high-speed CPU chips, RISC chip, as well as multi-CPU control system with high-resolution detector of the absolute exchange digital servo system, taken at the same time improve the machine dynamic and static characteristics of effective measures, the high-speed high-precision machine has been efficient greatly enhanced. (2) Flexible includes two aspects: CNC system itself flexibility, NC system is modular in design, functional coverage, can be cut and strong, and easy to meet the needs of different users; group control system flexibility, with a control system pursuant to the requirements of different production processes, materials flow and information flow automatically dynamically adjusted to maximize their group control system performance. (3) Process of composite and multi-axis to reduce the process time for the main purpose of supporting the composite processing, and are moving towards multi-axis, multi-function control of the direction of series development. NC Machine Tool Technology composite refers to the workpiece in a single machine on a fixture, through an automatic tool change, rotating spindle head or turntable, and other measures to accomplish multiple processes, multi-surface machining compound. Axis CNC technology, Siemens 880-axis control system for up to 24 axes. (4) Real-time Intelligent early for the real-time system is usually relatively simple ideal environment, and its role is to scheduling tasks, to ensure that the task be completed within a specified time limit. And artificial intelligence is used to model the realization of mankind's various intelligent behaviors. To the development of science and technology today, real-time systems and artificial intelligence combined with each other towards artificial intelligence is a real-time response, a more realistic field of development, and also in the real-time system with intelligent behavior, the more complex application development, resulting in the Intelligent real-time control of this new area. NC technology in the field, real-time intelligent control of the research and application of development along several main branches: adaptive control, fuzzy control, neural network control, experts control, learning control, feed-forward control. For example, in CNC programming system with expert systems, fault diagnosis expert system parameters automatically set and tool management and automatic compensation, such as adaptive conditioning systems, in high-speed processing of the integrated motion control ahead of the introduction of budget projections and functional, dynamic Feedforward functions in pressure, temperature, position, velocity, control, fuzzy control, the control of the NC system performance greatly improved, so as to achieve optimal control purposes. 2.2 functional development direction (1) The user interface is graphical user interface with the CNC system of dialogue between the user interface. Since different users interface requirements are different, thus the development of the workload of great user interface, user interface software developed into the most difficult part of. At present INTERNET, virtual reality, visualization in scientific computing and multimedia technologies, such as the user interface has put a higher demand. Graphical user interface greatly facilitates the use of non-professional users, it can be carried out through the window and menu operation, ease of programming and blueprint for rapid programming, three-dimensional dynamic three-dimensional color graphics, graphics, simulation, graphics, dynamic tracking and simulation, and the different directions view and partial display ratio scaling function can be achieved. (2) visualization in scientific computing visualization in scientific computing can be used for efficient data processing and interpretation of data, so that the exchange of information is no longer limited to using the written word and language, and can direct the use of graphics, image, animation, video and other information. Visualization technology and virtual environment technology, to further broaden the application areas, such as a drawing design, virtual prototyping technology, which shorten product design cycles, improving product quality, reduce production cost is of great significance. NC technology in the areas of visualization technology can be used for CAD / CAM, such as automatic programming design parameters automatically set, tool compensation and tool management of dynamic data processing and display, as well as the processing of visual simulation, and other presentations. (3) interpolation, and a variety of methods of compensation interpolation methods such as multiple linear interpolation, circular interpolation, cylindrical interpolation, space elliptical surface interpolation, thread interpolation, polar coordinates interpolation, 2 D +2 helical interpolation , NANO interpolation, interpolation NURBS (non-uniform rational B-spline interpolation), spline interpolation (A, B, C kind), such as polynomial interpolation. A variety of functions such as compensation gap compensation vertical compensation quadrant error compensation, and measurement systems pitch error compensation, and speed-related feedforward compensation and temperature compensation, with nearly smooth and exit, as well as the opposite point of the cutter radius compensation. (4) high-performance PLC contents contents performance CNC system PLC control module can be directly used ladder diagram or high-level language programming, with intuitive online debugging and online help function. Programming tools include the standard used lathe and milling machine PLC user program an example, users may PLC user program standards on the basis of editorial changes, thus easily build their own applications. (5) application of multimedia technology of multimedia technology-computers, audio-visual and communication technology, and it has the computer integrated voice, text, images and video information. In NC technology, multimedia technology can be applied to information processing integrated, intelligent, real-time monitoring system in the field and production equipment fault diagnosis, monitoring of process parameters such as production has a significant value. 2.3 Development of the Architecture (1) integration of a highly integrated CPU, programmable RISC chips and large-scale integrated circuits FPGA, EPLD, CPLD and ASIC ASIC chips that can improve the CNC system integration and hardware and software operating speed. Application FPD flat panel display technology can improve display performance. Flat-panel displays with high science and technology content, light weight, small size, low power consumption and portability advantages can be realized Supersized, a counterweight to the emerging and CRT display technology, display technology in the 21st century the mainstream. Application of advanced packaging and interconnect technologies, semiconductors and surface mount technology integration. By increasing the density of integrated circuits, reducing the length and number of interconnection products to reduce prices, improve performance, reduce component size, improve the reliability of the system. (2) easy to implement modular hardware modular NC systems integration and standardization. According to various functional requirements, the basic modules, such as CPU, memory, position servo, PLC, the input and output interfaces, and communications modules, making the standard Series products, through functional building-block approach to cutting the number of steps and modules, a NC system at different grades. (3) machine interconnection network for remote control of unmanned operation. Machine through networking, can be in any one machine on the other machine programming, configuration, operation, operating, different machine can be displayed on the screen each machine on the screen. (4) general-open the closed-loop control mode to adopt a common computer component Bus, modular, open, embedded architecture, ease of cutting, expansion and upgrading, can be composed of different grades, different types, different degree of integration CNC system. Closed-loop control mode is the traditional CNC system only for single closed-open-loop control mode proposed. The manufacturing process is a multi-variable control and the role of integrated processing complex process, including processing, such as size, shape, vibration, noise, temperature and thermal deformation, and other factors, therefore, to achieve the process of multi-objective optimization, Multivariable must adopt the closed-loop control, real-time processing in the dynamic adjustment process variables. Processing the adoption of open universal real-time closed-loop control mode the whole dynamic, easy real-time intelligent computer technology, network technology, multimedia technology, CAD / CAM, servo control, adaptive control, dynamic data management and dynamic tool compensation, dynamic simulation and other high technology into one, a tight closed-loop manufacturing process control system to achieve integrated, intelligent, network-based. 3 PCNC new generation of intelligent CNC system Research and Development adapted to the current complexity of the manufacturing process, with the structure of the closed-loop control system, a new generation of intelligent PCNC CNC system has become possible. PCNC NC intelligent system will be a new generation of intelligent computer technology, network technology, CAD / CAM, servo control, adaptive control, dynamic data management and dynamic tool compensation, dynamic simulation and other high technology into one, a tight closure of the manufacturing process Central control system. 13