CA6140主軸工藝與夾具設(shè)計(jì)說明書（鉆Φ23孔夾具+磨床夾具）.doc

黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)I摘要在機(jī)械領(lǐng)域中，車床是應(yīng)用最為廣泛、使用最為頻繁的一種機(jī)床，特別是CA6140車床，它的應(yīng)用非常的普遍。所以它的加工精度就極其的重要，工件能否達(dá)到加工要求就取決于車床本身的精度，而決定CA6140車床加工質(zhì)量的就是它的主軸。CA6140車床主軸是把旋轉(zhuǎn)運(yùn)動(dòng)及扭矩通過主軸端部的夾具傳遞給工件和刀具，要求有很高的強(qiáng)度及回轉(zhuǎn)精度。我在本設(shè)計(jì)中將主軸設(shè)計(jì)為空心階梯軸，外圓表面設(shè)有花鍵、墊鍵等功能槽及螺紋。本文設(shè)計(jì)詳細(xì)計(jì)算了加工余量、切削用量、尺寸公差并闡述了CA6140主軸的加工工藝過程以及生產(chǎn)中所涉及的重要夾具設(shè)計(jì)方法。經(jīng)設(shè)計(jì)的CA6140主軸較其傳統(tǒng)的車床主軸有更高的強(qiáng)度和回轉(zhuǎn)精度。關(guān)鍵詞:車床；主軸；旋轉(zhuǎn)運(yùn)動(dòng)；公差；夾具黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)ABSTRACTInmachineryfield,thelatheristhemostextensivelyandfrequentlyusedmachine.EaspeciallytheCA6140lather,itsapplicationisverywidespread.Soitsprocessingaccuracyisveryimportant.Whethertheworkpiececanreachtheaccuracyrequiredisdecidedbythelather.While,thepartdecidingtheprocessingqualityofCA6140latherisitsmainshaft.ThemainshaftoftheCA6140latheristotransmittherovolvemotionandthetorquetotheworkpieceandcutting-toolthroughthefixtureontheendofmainshaft,inwhichhighstrenghandrotatingaccuracyarerequired.Inthisdesign,myjobcontainsthethingsasbelow.Mainshaftisahollowsteppedshaft.Therearefunctionalslotsandthread,suchasspline,padkeyandsoon.Inthepaper,allowance,cuttingconsumptionandtolerancearecalculated.AlsoelaboratesthecraftprocessesofthemainshaftofCA6140lather,andthedesignofimportantfixture.Afterbeingdesigned,comparedwithtraditionallather,thestrengthandrotatingaccuracyareenhanced.Keywords:Lather；Mainshaft；RotatingMovement；Tolerance；Fixture黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)目錄摘要.IAbstract.II第1章緒論.11.1概述.11.2車床的發(fā)展史.11.3本課題研究的內(nèi)容和設(shè)計(jì)思想.1第2章零件的分析.42.1零件的作用.42.1.1支承軸頸.42.1.2頭部錐孔.42.1.3頭部短錐.42.1.4裝配軸頸.42.1.5軸向鎖緊.52.2零件的工藝分析.52.2.1加工階段的劃分.52.1.3工序順序安排.52.1.4主軸錐孔的磨削.62.3本章小結(jié).5第3章工藝規(guī)程的設(shè)計(jì).73.1主軸的材料、毛坯與熱處理.73.1.1主軸的毛坯.73.1.2主軸的材料和熱處理.73.2主軸加工工藝過程.83.2.1主軸加工的主要問題和工藝過程設(shè)計(jì)所應(yīng)采取的相應(yīng)措施.83.2.2主軸加工定位基準(zhǔn)的選擇.93.2.3主軸主要加工表面加工工序的安排.93.2.4各工序工步的排序.113.3本章小結(jié).11黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)第4章機(jī)械加工余量、工序尺寸及毛坯尺寸的確定.124.1各工序工步的加工余量的計(jì)算.124.2各工