渦輪盤液壓立拉夾具設(shè)計(jì)說明書.doc

I摘要渦輪盤是航空發(fā)動(dòng)機(jī)上十分重要的零件，它的精度高、機(jī)械加工難度大，處在高速、高溫的環(huán)境下工作，是關(guān)鍵復(fù)雜構(gòu)件，在整個(gè)渦輪機(jī)加工中也是一個(gè)難點(diǎn)。而在渦輪盤機(jī)械加工中，工作量最大、難度最高的是渦輪盤榫槽加工。渦輪盤榫槽夾具可以保證加工精度高，提高加工效率。因此夾具設(shè)計(jì)是榫槽加工中的一個(gè)重要環(huán)節(jié)。本文通過對渦輪盤榫槽類型結(jié)構(gòu)、加工工藝、夾具設(shè)計(jì)及使用情況的分析，闡述了定位基準(zhǔn)的選擇，壓緊方式的確定，正確的復(fù)雜空間尺寸及角度計(jì)算和高精度的分度機(jī)構(gòu)設(shè)計(jì)的過程，完成了渦輪盤榫槽重要夾具工裝的設(shè)計(jì)，提出了針對整體工藝裝備提高榫槽表面粗糙度的解決方法。關(guān)鍵詞：渦輪盤榫槽空間角度計(jì)算步伐式雙銷聯(lián)動(dòng)分度裝置IIIAbstractTheturbinediskisontheaircraftenginetheextremelyimportantcomponents,foritshighprecision,thehardmachine-finishing,underthehighspeedhightemperatureenvironmentworks,isthekeycomplexcomponent,intheentireturbineprocessingalsoisadifficultpoint.Moreoverintheturbinediskmachine-finishing,theturbinedisktroughprocessingiswhattheworkloadisbiggest,thedifficultyishighest.Theturbinedisktroughfixturemayguaranteetheprocessingprecisionishigh,enhancestheprocessingefficiency.Thereforethefixturedesignintroughprocessingisanimportantlink.Thisarticlethroughtoanalysistheturbinedisktroughtypestructure,theprocessingcraft,thefixturedesignandtheservicecondition,elaboratedthelocalizationdatumchoice,contractsthewaythedetermination,thecorrectcomplexspatialsizeandtheanglecomputationandthehighaccuracyrulingengineconstructiondesignprocess,hascompletedthedesigningoftheturbinedisktroughimportantfixtureworkclothes,proposedthesolutionofenhancestroughthesurfaceroughnessinviewoftheoverallcraftequipment.Keywords：troughtheworkingsurfacespatialanglecomputationspeedsteptypedoublesellsthelinkageaxialtobedividedtheequipmentIII目錄摘要IAbstractII第1章緒論11.1機(jī)床夾具及其功用11.2現(xiàn)代機(jī)床夾具的發(fā)展方向11.3現(xiàn)代工業(yè)對夾具設(shè)計(jì)的基本要求21.4項(xiàng)目提出的背景21.5項(xiàng)目研究的方法、預(yù)期結(jié)果及意義3第2章渦輪盤榫槽加工特點(diǎn)與工藝裝備42.1渦輪盤榫槽的加工特點(diǎn)42.2拉削特點(diǎn)42.3拉削分類42.4拉削速度52.5拉削表面粗糙度52.6工藝裝備6第3章渦輪盤液壓立拉夾具的設(shè)計(jì)73.1設(shè)計(jì)方案的確定73.1.1任務(wù)來源與狀況73.1.2定位機(jī)構(gòu)與定位原則103.1.3定位基準(zhǔn)的選擇113.1.4定位誤差的分析和計(jì)算113.1.5壓緊方式的確定143.2立拉夾具結(jié)構(gòu)的設(shè)計(jì)153.2.1夾具的結(jié)構(gòu)及特點(diǎn)153.2.2夾具底座設(shè)計(jì)173.2.3正確的復(fù)雜空間尺寸及角度計(jì)算203.2.4高精度的分度機(jī)構(gòu)設(shè)計(jì)223.2.5方便快捷的液壓驅(qū)動(dòng)系統(tǒng)28第4章液壓分度夾具的使用與調(diào)整304.1液壓分度夾具使用30IV4.1.1加工前的準(zhǔn)備304.1.2控制過程304.