0319-加強板零件的數(shù)控加工工藝及組合夾具設計
0319-加強板零件的數(shù)控加工工藝及組合夾具設計,加強,零件,數(shù)控,加工,工藝,組合,夾具,設計
畢業(yè)設計(論文)外文翻譯題目: 加強板數(shù)控加工及夾具設計專 業(yè) 名 稱: 機械設計制造及其自動化班 級 學 號: 078105208學 生 姓 名: 顧榮杰指 導 教 師: 熊麗娟 填 表 日 期 2011 年 5 月 26 日一、 選題的依據及意義數(shù)控機床以其精度高、效率高和能適應小批量多品種復雜零件的加工等優(yōu)點,在機械加工中得到廣泛的應用,在復合零件及航空零件的生產與制造,都廣泛的采用了數(shù)控技術。在數(shù)控加工機床上確定工件相對于刀具的正確加工位置,以保證其被加工表面達到所規(guī)定的各項技術要求,通過夾具將工件固定下來并可靠的夾住,防止在加工時因受到切削力、慣性力、離心力、重力及沖擊力和振動等作用而發(fā)生位置移動。討論數(shù)控加工和夾具的設計。對制造業(yè)的發(fā)展很重要。隨著社會的進步,人們對各類產品的要求越來越高,像汽車這樣大批量生產的產品,也要求其個性化,因此就不能采用傳統(tǒng)的剛性生產線,要考慮到適當?shù)娜嵝浴R恍┬∨可a的產品,其復雜度要求和精密度要求也使通用機床難以勝任。相比之下,數(shù)控機床恰恰滿足了這些要求。數(shù)控加工是集傳統(tǒng)的機械制造計算機現(xiàn)代控制傳感檢測信息處理光電技術于一體,是現(xiàn)代機械制造技術的基礎。他的廣泛應用,給機制造的生產方式及產品結構帶二、 國內外研究概況及發(fā)展趨勢自1952年美國研制成功第一臺數(shù)控機床以來,隨著電子技術、計算機技術、自動控制技術和精密測量技術等的發(fā)展,數(shù)控機床在迅速地發(fā)展和不斷更新?lián)Q代,先后經歷了5個發(fā)展階段。第一階段數(shù)控技術:1952-1959年,采用電子管元件構成的專用數(shù)控裝置(NC)。第二代數(shù)控技術:從1959年開始,采用晶體管電路的NC系統(tǒng)。第三代數(shù)控技術:從1965年開始,采用小、中規(guī)模集成電路的NC系統(tǒng)。第四代數(shù)控技術:從1970年開始,采用大規(guī)模集成電路的小型通用電子計算機控制系統(tǒng)。第五代數(shù)控機床:從1974開始,采用微型電子計算機控制(Microcomputer Numerical Control,MNC)系統(tǒng)。第五代微機數(shù)控系統(tǒng)已取代以往的普通數(shù)控系統(tǒng),形成了現(xiàn)代數(shù)控系統(tǒng)。它采用微機處理器及大規(guī)?;虺笠?guī)模集成電路,具有很強的程序存儲能力和控制功能。進入20世紀90年代以來,由于計算機技術的飛速發(fā)展,加速了數(shù)控系統(tǒng)的更快更新?lián)Q代。世界上許多數(shù)控系統(tǒng)生產廠家都利用PC機豐富的軟硬件資源開發(fā)式體系結構的新一代數(shù)控系統(tǒng)(也稱之為六代數(shù)控機床)。開放式體系結構使數(shù)控系統(tǒng)具有更好的通用性、柔性、適應性,擴展性、并向智能化、網絡化方向發(fā)展。開放式體系結構可以大量采用通用微機的先進技術,如多媒體技術,實現(xiàn)聲控自動編程、圖形掃描自動編程等。數(shù)控系統(tǒng)繼續(xù)向高集成度的方向發(fā)展,每個芯片上可以集成更多個晶體管,使系統(tǒng)體積更小,更加小型化、微型化。利用多的CPU優(yōu)勢,實現(xiàn)故障自動排除,可靠性大大提高;增強通信功能,提高進線、聯(lián)網能力。最新一代的數(shù)控機床并聯(lián)機床(又稱6條腿數(shù)控機床、并聯(lián)運動機器人、虛軸機床),是得控機床在結構上取得重大突破。在1994年美國芝加哥國際機床展覽會(IMTS,94)上,美國G iddings&Lewis公司首次展出了Variax型并聯(lián)運動機床,引起了各國機床研究單位的和生產廠家的重視。它是一臺以Stewart平臺為基礎結構5坐標立式加工中心,標志著機床設計開始采用并聯(lián)機構,是機床結構重大改革的里程碑。數(shù)控技術正向科學計算可視化,插補和補償方式多樣化,內裝高性能PLC,用戶界面圖像化,基于CAD和CAM的數(shù)控編程自動化方向發(fā)展,當前開發(fā)研究適應于復雜制造過程的、具有閉環(huán)控制體系結構的、智能化新一代PCNC數(shù)控已成為,智能化新一代可能PCNC數(shù)控系統(tǒng)將計算機智能技術、網絡技術、CAD/CAM、伺服控制、自適應控制、動態(tài)數(shù)據管理及動態(tài)刀具補償、動態(tài)仿真等高薪技術融于一體,形成嚴密的制造過程閉環(huán)控制體系。早期的夾具是和機床配套使用的,現(xiàn)代的專用夾具隨著大批大量生產的發(fā)展而出現(xiàn),特別是汽車行業(yè)。從本世紀40年代開始,人們已開始研究組合夾具和可調整夾具。我國生產夾具行業(yè)已有10多家,生產M16 M12 M8 M6 四個系列的組合夾具元件。隨著科技的發(fā)展,航空等產品已經把數(shù)控加工應用到產品的開發(fā)過程當中來,國際一些知名企業(yè)都采用了UG軟件,國內大多數(shù)研究所和飛機制造廠也都選用了UG作為新產品的開發(fā)平臺。應該說,我國CAD/CAM技術的應用正呈現(xiàn)出一片欣欣向榮的景象。在未來的發(fā)展過程中,一定會成為企業(yè)提高創(chuàng)新設計能力的主要手段。三、研究內容及實驗方案1.建立加強板數(shù)控模型;2.編制加工工藝;3.編制數(shù)控加工程序;4.設計加強板鉆孔用組合夾具;5.編制組合夾具裝配圖6.翻譯相關科技資料,并編寫論文.四、目標、主要特色及工作進度目標:通過這次畢業(yè)設計,可以系統(tǒng)的把大學里的專業(yè)知識應用到實際設計和生產中去,提高自己的動手能力和創(chuàng)新能力,鍛煉自己的自主能力和查閱資料的能力,以此提高自己的綜合素質來適應社會發(fā)展的需求。主要特色:組合夾具采用標準化元件,縮短了輔助時間,工件定位迅速,夾緊動作快,能夠保證加工精度和加工的穩(wěn)定性,并且擴大了機床的工藝范圍,降低了對工人技術水平的要求和減輕了工人的勞動強度。數(shù)控加工綜合應用了微電子技術、計算機技術、自動化控制、精密測量和機床結構等方面的最新成就而發(fā)展起來的高效自動化精密機床,是一中典型機電一體化產品。它集高效率、高精度和高柔性于一身,代表了機床的主要發(fā)展方向。它是機械加工自動化的核心設備。工作進度:1.收集有關資料,撰寫開題報告 3月1日- 3月21日2.建立零件的三維CAD 實體模型 3月22日- 4月5日3.編制零件數(shù)控加工工藝與數(shù)控加工程序 4月6日- 5月1日4.設計夾具一套 5月2日- 5月30日5.整理內容,書寫畢業(yè)論文 6月1日- 7月2日 五、參考文獻1Christian Vogt, Christian Mergl, and Heiner Bubb.Interior Layout Design of Passenger Vehicles With RAMSISJ. Human Factors and Ergonomics in Manufacturing, 2005,15 (2) 197212.2Gianni Ferretti, GianAntonio Magnani, Paolo Pocco. Virtual prototyping of mechatronic systemsJ. Annual Review in Control, 2004, 28: 193200.3王先逵 機械制造工藝學 機械工藝出版社 2002.74趙波,龔勉,浦維達 UG CAD 使用教程 清華大學出版社2002.75謝國明曾向陽 王學平UG CAM使用教程清華大學出版社2002.66范丙炎 組合夾具北京出版社 1990.65 陸勁昆 初利寶Unigraphics V18.0與三軸銑床加工 北京大學出版社2002.67Boyes WE.Jigs and Fixtures.America ,SME 1982加強板零件的數(shù)控加工及夾具設計摘要: M5-5加強板零件是某航空產品中的一個薄壁零件,主要起支撐作用因而需要一定的強度和剛度,它是采用LC9鋁合金材料,能滿足其性能要求。航空產品一般是單件小批量生產,故適宜采用數(shù)控加工生產。本畢業(yè)設計課題的設計內容主要包括M5-5加強板零件數(shù)控加工和鉆孔用組合夾具拼裝兩個部分。數(shù)控加工部分主要有零件的實體模型的建立、數(shù)控加工工藝規(guī)程編制、刀具、切削用量及主軸轉速的選擇,以及零件的仿真數(shù)控加工,并利用UG軟件自動生成相應工序的數(shù)控加工程序。實體模型的建立是利用UG現(xiàn)有的塊、圓柱體、圓錐體和球體四種簡單的實體模型,通過建模合理性和參數(shù)化要求出發(fā),根據M5-5加強板零件的特點創(chuàng)建符合數(shù)控加工的實體模型。根據粗、精加工分開的原則合理編制數(shù)控加工工藝規(guī)程。根據工件材料及所用機床選擇適合的刀具及切削用量。組合夾具拼裝部分主要有組合夾具的總體設計、相關組合夾具元件的選擇,定位基準的選擇及夾緊方法的選擇以及加工誤差精度分析。 關鍵字:實體建模 數(shù)控加工 工藝規(guī)程 組合夾具 指導老師簽名:The numerical control processing and jig of Strengthen the plank part are designedAbstract : M5-5 Strengthen the plank part some aviation products one of frame thin wall part, it need certain intensity and rigidity to play a supporting role mainly, it adopts the aluminium alloy material of LC9, can meet its performance demand . Aviation products single piece light to produce in batches generally, is it adopt numerical control process production to suit. Aviation products single piece light to produce in batches generally, is it adopt numerical control process production to suit. This graduation project design of subject content mainly including M6-6 little floor part numerical control process and hole with make up jig assemble two parts. Numerical control process part for entity foundation , numerical control processing technology rules make , cutter , cut consumption and choice , main shaft of rotational speed of model of part, and artificial numerical control of part process, utilize UG software turn into corresponding numerical control of process process the procedure automatically. Foundation, entity of model to utilize UG existing piece , round cylinder , cone , spheroid 4 kinds of simple entity models, is it set out to demand through modeling rationality and parameter , is it accord with the entity model processed in numerical control to establish according to M5-5 Strengthen the plank characteristic of part. According to thick, principle that finish machining separate work out the processing technology rules of numerical control rationally. And choose the suitable cutter and cutting consumption with the lathe according to the work piece material. Making the jig up has overall design which makes the jig up , relevant choices of making the jig component up to assemble mainly, orient the basic choice and choice of clamping the method and process the analysis of precision of error. Keyword: Entitys modeling Numerical control is processed Craft rules Rotational speed of the main shaft Signature 0f Supervisor: 部分數(shù)控加工程序單零件名稱: 加強板 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編號:1113446
類型:共享資源
大?。?span id="g5be5wy" class="font-tahoma">56.49MB
格式:RAR
上傳時間:2019-10-07
35
積分
- 關 鍵 詞:
-
加強
零件
數(shù)控
加工
工藝
組合
夾具
設計
- 資源描述:
-
0319-加強板零件的數(shù)控加工工藝及組合夾具設計,加強,零件,數(shù)控,加工,工藝,組合,夾具,設計
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