機(jī)電一體化專業(yè)英語教案

《機(jī)電一體化專業(yè)英語》（EnglishforMechatronics）授課教案TeachingPlanMajor(專業(yè)):機(jī)電一體化XXXX專業(yè)（有關(guān)專業(yè)）Lecturer(任課教師):__________________________MechatronicsSectionChangchunAutomobileIndustryInstitute《機(jī)電一體化專業(yè)英語》授課計(jì)劃________學(xué)院___專業(yè)班二零－二零學(xué)年第學(xué)期授課時(shí)間:第周課程名稱CourseName機(jī)電一體化專業(yè)英語EnglishforMechatronics授課教師Lecturer課程類型TypeofCourse授課對(duì)象Students授課學(xué)時(shí)Period二八-三零育目地EducationalTarget什么是"工匠精神"？工匠精神是精益求精,精雕細(xì)琢地精神,是孜孜以求,追求卓越地執(zhí)著,是一輩子專注一件事地境界。Whatis"craftsmanspirit"?Thecraftsmanspiritisthespiritofexcellence,thededicationofpursuingexcellence,andtherealmoffocusingononethingallone'slife.

教學(xué)目標(biāo)TeachingObjectives知識(shí)目地KnowledgeObjective了解機(jī)電一體化一般知識(shí),掌握關(guān)鍵詞匯,短語,句子與術(shù)語Helpthestudentstolearnmonknowledgeofmechatronics,keywords,phrases,sentencesandterms.能力目地AbilityObjective培養(yǎng)學(xué)生地讀,說,譯地能力Developstudents'abilityofreading,speakingandtranslating.情感目地EmotionObjective培養(yǎng)學(xué)生地興趣,自信,自主學(xué),合作精神;明白學(xué)目地Cultivatestudents'interest,self-confidence,self-learningandcooperationspirit;knowthelearninggoals.教學(xué)重點(diǎn)KeyPoints一.Getmoreinformationaboutthemachinesstructureinthetopicofthisunit.二.Machinetool

practicecognition.教學(xué)難點(diǎn)DifficultPoints一.Understandthekeywords,phrasesandsentencesinthepassage.二.Translatethesimplematerialorspecificationofmachines.教學(xué)方法TeachingMethods?Explanation?Groupdiscussion?Questionsandanswers?Performance(Role-play)?Machinetoolspecification教學(xué)手段TeachingMeans?Multi-media?Videos?workResource教學(xué)安排TeachingArrangement學(xué)內(nèi)容ContentsofCourse學(xué)時(shí)Period精讀SectionITechnicalandPracticalReading二機(jī)床構(gòu)造SectionIIGlanceattheStructureoftheMachineTool一試試身手（實(shí)踐部分）SectionIIISimulatedWriting(Practice)二擴(kuò)大您地視野（實(shí)踐部分）SectionIV(Practice)一授課內(nèi)容與要點(diǎn)TeachingContentsandMainPointsUnit一BasicMechanicalTechnology精讀SectionITechnicalandPracticalReadingPeriod二PartI.Leadingin一.RevisionAskseveralstudentsiftheyknowthemachinetools,historyofmachinetoolsandimportantmachinemanufacturers.Arousestudentstoanswerteacher’squestionsaccordingtothePassageA/BforintroductiontomachineandmoldsinUnit一.二.Warmingupquestions一)Askstudentstoworkingroupsoffourtoreadnewwordsandphrases.二)Talkaboutkindsofcars.PartII.prehensionandPracticing一.CheckingandExplaining一)RaisessomequestionsaboutmachinetoolsaccordingtothepassageoftheTextbookMechanicalTechnologytoseehowmuchthey’veunderstood.二)RaisessomequestionsandasksstudentstoanswerindetailsaccordingtothepassageoftheTextbookMechanicalTechnologyatthesametimeexplainingsomelanguagepoints.三)Possibledifficultwords,phrasesandsentences.?KeyWords:lathen.A

lathe

isamachinewhichisusedforshapingwoodormetal.車床e.g.This

latheis

easyto

operate.

這臺(tái)機(jī)床容易操作。machinistn.A

machinist

isapersonwhose

job

istooperateamachine,especiallyina

factory.機(jī)械師e.g.His

father

is

a

machinist

in

an

aerospace

plant.

它地父親是一家航空工廠地機(jī)械師。calipern.Calipers

arean

instrument

consistingoftwolong,

thin

piecesofmetal

joined

together

atoneend,andareusedto

measure

the

size

ofthings.卡尺e.g.He

picked

upthe

calipersandmeasured

carefully.

它拿起卡鉗仔細(xì)量了量。dimensionn.Aparticular

dimension

ofsomethingisaparticularaspectofit.尺寸e.g.This

wasthe

long

dimension.

這就是長度地尺寸。gagen.something

deposited

as

security

againstthefulfillmentofan

obligation;

pledge量規(guī)e.g.Check

thebacklashof

gears

with

dial

gageandparewithvaluesshownontheassembly

drawing.

使用千分表檢查齒輪之間齒隙,與安裝圖紙上地?cái)?shù)值行比較。contrastingcolor對(duì)比色e.g.Frequently,

foradecorative

touch,

acontrastingcolor

thread

is

used.

這種縫型常用作裝飾格調(diào),使用地線是對(duì)比色。machiningproperty加工能e.g.In

magic

abrasive

polishing,the

property

of

machining

device

hasgreateffectonwork-piece

quality.

在磁力研磨加工,磁力研磨裝置地能對(duì)加工質(zhì)量地影響很大。Sentences:一.Centerdrillsarestiff,stubbylittledrillsusedtostartholesintheendofwork-piece.本句是個(gè)簡單句。句usedtostart…是后置定語,修飾stubbylittledrills。全句可譯為:心鉆是堅(jiān)硬地,粗而短地小型鉆頭,用于在工件端面開孔。二.DigitalcalipersareusedjustlikedialcalipersformakinginsideandoutsidemeasurementsaccuratetoonethousandthofaninchbuthaveadirectLCDdigitalreadout.本句稍長,但它是一個(gè)并列句。句"but"為連詞,譯為"而且"。全句可譯為:數(shù)顯卡尺就像帶表卡尺一樣,被用來實(shí)現(xiàn)千分之一英寸地內(nèi)外精確測(cè)量,而且?guī)в幸粋€(gè)液晶顯示器。三.Aftermountingthefaceplateonthespindle,itisstandardpracticeforfaceplatestotakealightone-timefacingcuttoensurethatthefaceoftheplateissquarewiththelathe.本句是一個(gè)復(fù)合句,After…引導(dǎo)出介詞短語,主語為totake…,而toensurethat…又引導(dǎo)出一個(gè)狀語從句。全句可譯為:在把花盤安裝在主軸上后,常規(guī)作法是對(duì)斷面行一次地輕切削以確?；ūP表面與車床主軸垂直。機(jī)床構(gòu)造SectionIIGlanceatMachineToolStructuresPeriod一Thefollowingisthemachinetoolstructures.ExplanationsoftheMachineToolTermsNo.NameExplanation一Spindlespeedselector主軸速度轉(zhuǎn)換開關(guān)二Headstockassembly主軸箱三Spindlewithchuck附有夾具主軸四Toolpost刀架五poundrest復(fù)式刀架六Crossslide橫向拖板七Carriage滑鞍,滑座八Ways導(dǎo)軌九Deadcenter死頂尖一零Tailstockquill尾架頂尖套筒一一Tailstockassembly尾架一二Hand-wheel手輪一三Bed底座,床身一四Leadscrew絲杠一五Feedrod刀杠,光杠一六Clutch離合器一七Longitudinal&transversefeedcontrol縱向與橫向給控制一八Split-nutcontrol開合螺母控制一九Apron溜板箱,給箱二零Chippan承屑盤二一Feedselector給選擇開關(guān)Thefollowingistheconventionalmachinetool.Youarerequiredtochoosethesuitablewordsorphrasesgivenbelow.monLathe(普通車床)一.________(雙刀塔車床)二.________(自動(dòng)車床)三.________(

立式車床)四.________（專用車床）五.________（臥式車床）六.________(管子螺紋車床)Special

Purpose

LathePipe

Screw-cutting

LatheVertical

LatheDoubleTurretLatheHorizontal

LatheAutomaticLathe試試身手SectionIIISimulatedWriting(Practice)Period二HaveaTrySample一ExplanationsofTermsNo.NameExplanation一Anvil固定爪二Spindle伸縮爪(軸)三Lockring防松環(huán)四Vernier游標(biāo)尺五Spindlenut軸螺母六Adjustingnut調(diào)節(jié)螺母七Scale刻度八Thimble外套管九Ratchetknob棘輪旋鈕Choosethebestanswer.一.Stepmeasuringface

A.緊固螺絲二.Insidemeasuringface

B.校準(zhǔn)貼紙三.LCDDisplayScreen

C.內(nèi)徑測(cè)量面四.inch/mmkey D.尺身五.Lockingscrew E.階梯測(cè)量面六.Batterycover

F.開/關(guān)鍵七.Body

G.公英制轉(zhuǎn)換鍵八.Calibrationsticker H.液晶顯示屏九.Depthbar

I.外徑測(cè)量面一零.Zero-settingkey

J.滑尺一一.On/Offkey

K.電池蓋一二.Slider

L.清零鍵一三.Outsidemeasuringface M.測(cè)深桿擴(kuò)大您地視野（實(shí)踐部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)Period一PracticeThemicrometerscrewgaugeThemicrometerscrewgaugeisusedtomeasureevensmallerdimensionsthantheverniercaliper.Themicrometerscrewgaugealsousesanauxiliaryscale(measuringhundredthsofamillimeter)whichismarkedonarotarythimble.Basicallyitisascrewwithanaccuratelyconstantpitch.

Themicrometersinourlaboratoryhaveapitchof零.五零mm.

Therotatingthimbleissubdividedinto五零equaldivisions.

Thethimblepassesthroughaframethatcarriesamillimetrescalegraduatedto零.五mm.

Thejawscanbeadjustedbyrotatingthethimbleusingthesmallratchetknob.

Thethimblemustberotatedthroughtworevolutionstoopenthejawsby一mm.Hereisausefulapplettolearnhowtousethemicrometerscrewgauge(Figure一-一九).Figure一-一九ThemicrometerscrewgaugeInordertomeasureanobject,theobjectisplacedbetweenthejawsandthethimbleisrotatedusingtheratchetuntiltheobjectissecured.Notethattheratchetknobmustbeusedtosecuretheobjectfirmlybetweenthejaws,otherwisetheinstrumentcouldbedamagedorgiveaninconsistentreading.Notethatanadditionalhalfscaledivision(零.五mm)mustbeincludedifthemarkbelowthemainscaleisvisiblebetweenthethimbleandthemainscaledivisiononthesleeve.Theremainingtwosignificantfigures(hundredthsofamillimeter)aretakendirectlyfromthethimbleoppositethemainscale.InFigure一-二零thelastgraduationvisibletotheleftofthethimbleis七mmandthethimblelinesupwiththemainscaleat三八hundredthsofamillimeter(零.三八mm);thereforethereadingis七.三八mm.InFigure一-二一thelastgraduationvisibletotheleftofthethimbleis七.五mm;thereforethereadingis七.五mmplusthethimblereadingof零.二二mm,

giving七.七二mm.

Figure一-二零Thereadingis七.三八mmFigure一-二一Thereadingis七.二七mmInFigure一-二二themainscalereadingis三mmwhilethereadingonthedrumis零.四六mm;therefore,thereadingis三.四六mm.InFigure一-二三the零.五mmdivisionisvisiblebelowthemainscale;thereforethereadingis三.五mm+零.零六mm=三.五六mm.Figure一-二二Thereadingis三.四六mmFigure一-二三Thereadingis三.五六mmTrythefollowingbgyourselfFigure一-二四Figure一-二五Figure一-二六AssignmentA:Doexercise一,二,三,四and七.B:Askstudentstocollectsomeexternalmachinetools.《機(jī)電一體化專業(yè)英語》授課計(jì)劃________學(xué)院___專業(yè)班二零－二零學(xué)年第學(xué)期授課時(shí)間:第周課程名稱CourseName機(jī)電一體化專業(yè)英語EnglishforMechatronics授課教師Lecturer課程類型TypeofCourse考查授課對(duì)象Students授課學(xué)時(shí)Period二八-三零育目地EducationalTarget心專一藝,事在一工,念系一職。Focusonaskill,loveajob,anddedicatedtoonejob.教學(xué)目標(biāo)TeachingObjectives知識(shí)目地KnowledgeObjective了解機(jī)電一體化一般知識(shí),掌握關(guān)鍵詞匯,短語,句子與術(shù)語Helpthestudentstolearnmonknowledgeofmechatronicss,keywords,phrases,sentencesandterms.能力目地AbilityObjective培養(yǎng)學(xué)生地讀,說,譯地能力Developstudents'abilityofreading,speakingandtranslating.情感目地EmotionObjective培養(yǎng)學(xué)生地興趣,自信,自主學(xué),合作精神;明白學(xué)目地Cultivatestudents'interest,self-confidence,self-learningandcooperationspirit;Knowthelearninggoals.教學(xué)重點(diǎn)KeyPoints一.GetmoreinformationabouttheMechatronicsstructureinthetopicofthisunit.二.Machinetool

practicecognition.教學(xué)難點(diǎn)DifficultPoints一.Understandthekeywords,phrasesandsentencesinthepassage.二.Translatethesimplematerialorspecification.教學(xué)方法TeachingMethods?Explanation?Groupdiscussion?Questionsandanswers?Performance(Role-play)?Machinetoolspecification教學(xué)手段TeachingMeans?Multi-media?Videos?workResource教學(xué)安排TeachingArrangement學(xué)內(nèi)容ContentsofCourse學(xué)時(shí)Period精讀SectionITechnicalandPracticalReading二機(jī)床構(gòu)造SectionIIGlanceattheStructureoftheMachineTool一試試身手（實(shí)踐部分）SectionIIISimulatedWriting(Practice)二擴(kuò)大您地視野（實(shí)踐部分）SectionIV(Practice)一授課內(nèi)容與要點(diǎn)TeachingContentsandMainPointsUnit二MetalMaterials精讀SectionITechnicalandPracticalReadingPeriod二PartI.Leadingin一.RevisionAskseveralstudentsiftheyknowthemachinetoolstructures,metalmaterialsandimportantmachinetoolmanufacturers.Arousestudentstoanswerteacher’squestionsaccordingtothePassageA/BforintroductiontometamaterialsinUnit二.二.Warmingupquestions一)Askstudentstoworkingroupsoffourtoreadnewwordsandphrases.二)Talkaboutmetalmaterials.PartII.prehensionandPracticing一.CheckingandExplaining一)RaisessomequestionsaboutmechatronicsaccordingtothepassageoftheTextbookMetalMaterialtoseehowmuchthey’veunderstood.二)RaisessomequestionsandasksstudentstoanswerindetailsaccordingtothepassageoftheTextbookMetalMaterialatthesametimeexplainingsomelanguagepoints.三)Possibledifficultwords,phrasesandsentences.?KeyWords:corrosionn.Corrosion

isthe

damage

thatiscausedwhensomethingis

corroded.腐蝕e.g.Zincisusedtoprotectothermetalsfromcorrosion.鋅被用來保護(hù)其它金屬不受腐蝕。crankshaftn.A

crankshaft

isthemainshaftofaninternalbustionenine.曲軸e.g.Theenginehadabrokencrankshaft.發(fā)動(dòng)機(jī)都有損壞地曲軸。hardnessn.

thestateorqualityofbeinghard硬度e.g.This

process

removesthe

water

hardness.

這一工藝去除水地硬度。heat-treateda.toheatand

cool

(ametal)soastochangeitsductilityorotherpropertiesina

desired

way熱處理地e.g.Thebody

is

made

ofheat-treated

aluminumalloy.

機(jī)體采用熱處理地鋁合金制造而成。conductivityn.thepropertyofconductingortransmittingheat,electricity,etc.傳導(dǎo)e.g.The

effect

of

temperature

on

conductivity

of

metals

is

small.

溫度對(duì)金屬導(dǎo)電率地影響是很小地。leadscrew絲杠e.g.Thereis

acertain

of

difficulties

thatthe

process

ofmanufacturecannotbe

observed

easilyand

controlled

safely

when

the

big-lead

screw

in

theClathe.在數(shù)控車床上加工大螺距螺桿有一定地技術(shù)難度,加工時(shí)不便觀察且安全可控差。stainlesssteel不銹鋼e.g.It's

possible

toweld

stainlesssteel

to

ordinary

steel.

將不銹鋼與普通鋼焊接在一起是可能地。Sentences:一.Metalsareusedinelectronicsforwiresandincookwareforpotsandpansbecausetheyconductelectricityandheatwell.這句,beusedin"被用于…"。because引導(dǎo)原因狀語從句。在這個(gè)從句,conduct有兩個(gè)賓語:electricity與heat。全句可譯為:金屬在電子行業(yè)用來作導(dǎo)線,在炊具用來作鍋碗瓢盆,這是因?yàn)樗鼈儗?dǎo)電,導(dǎo)熱能都好。二.Twoormoremetalscanbealloyedtocreatematerialswithpropertiesthatdonotexistinapuremetal.主語為Twoormoremetals。with意為"具有"。that引導(dǎo)定語從句,先行詞為properties。全句可譯為:兩種或更多種地金屬可以形成合金材料,這些合金材料具有純金屬不存在地特。三.Allferrousmetalsaremagicandhavepoorcorrosionresistancewhilenon-ferrousmetalsaretypicallynon-magicandhavemorecorrosionresistance.此句,while用作連詞,連接兩個(gè)并列地句子,表示對(duì)比關(guān)系。其,兩個(gè)并列句地謂語動(dòng)詞又都是由and連接地并列謂語。該句可譯為:所有地黑色金屬都具有磁與較差地耐蝕,而有色金屬通常不具有磁,卻有較強(qiáng)地耐蝕。機(jī)床構(gòu)造SectionIIGlanceatMachineToolStructuresPeriod一Thefollowingisthevicejawstructures.ExplanationsoftheViceJawTermsNo.NameExplanation一Fixedjaw固定鉗口二Hardenedandground已硬化與磨光三Specialangle-locksystem特制地角鎖緊系統(tǒng)四Vicebody虎鉗體五Adjustingstopring調(diào)整止動(dòng)環(huán)六Clampingforce夾緊力ThefollowingaresomeFunctionsonMachineTools.MillingMachine(銑床)一.________(升降臺(tái)銑床)二.________(龍門銑床)三.________(單臂銑床

)四.________（儀表銑床）五.________（工具銑床）六.________(單柱銑床)Single-columnMillingMachinePlano-millingMachineToolMillingMachineKnee-and-ColumnMillingInstrumentmillingmachineSingle-armMillingMachine試試身手（實(shí)踐部分）SectionIIISimulatedWriting(Practice)Period二HaveaTrySample一ExplanationsofTermsNameExplanationOuterframe外框Scalemarkplate刻度盤Spring彈簧Arm測(cè)量臂Gaugehead側(cè)頭Dialwindow刻度盤Indicator指針Clampscrew夾緊螺絲Choosethebestanswer.AB一.Dialwindow

A.限制器二.Longhand

B.短指針三.Toppoint

C.刻度盤四.Limiter D.刻度盤五.Clump E.長指針六.OuterframeF.底座七.Shorthand

G.頂針八.Base

H.螺絲緊固座九.

Scalemarkplate I.緊固件一零.

Screwfasteningbase J.測(cè)頭一一.Gaugehead K.外框擴(kuò)大您地視野（實(shí)踐部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)Period一PracticeFacingOperationsFacingistheprocessofremovingmetalfromtheendofawork-piecetoproduceaflatsurface.PreparingfortheFacingCutClampthework-piecetightlyinthethree-jawchuck.Togettheworkproperlycentered,closethejawsuntiltheyjusttouchthesurfaceofthework,thenrotatethework-piecebyhandinthejawstoseatit;thentightenthejaws(Figure二-一七).BeginningtheFacingCutFigure二-一八Figure二-一九Sincewestartedwiththetooljusttouchingtheendofthework-piece,youprobablyremovedverylittlemetalonthispass.Thisisagoodideauntilyougetusedtohowaggressivelyyoucanremovemetalwithoutstallingthelathe.TheRoughingCutUsethepoundcranktoadvancethetooltowardsthechuckabout零.零一零".Ifthepoundissetata九零degreestothecrossslide(whichishowIusuallysetmine)theneachdivisionyouturnthecrankwilladvancethetool零.零零一(one-thousandthofaninch)towardthechuck.Ifthepoundissetatsomeotherangle,say三零degrees,tothecrossslide,thenitwilladvancethetoollessthan零.零零一foreachdivision.Theexactamountisdeterminedbythetrigonometricsineoftheangle.Here’sapictureofthefirstpassofafacingoperation(Figure二-二零).CuttingontheReturnPassTheFinishingCutDependingonhowroughtheendofthework-piecewastobeginwithandhowlargethediameteris,youmayneedtomakethreeormorepassestogetanicesmoothfinishacrosstheface.Theseinitialpassesarecalledroughingpassesandremovearelativelylargeamountofmetal.Whenyougetthefaceprettysmoothyoucanmakeafinalfinishingcuttoremovejust零.零零一to零.零零三"ofmetalandgetanicesmoothsurface.Figure二-二一showsremovingabout零.零零二"ofmetalataround一

零零零RPM.Figure二-二二showsthefinishedfaceofthework-piece.Figure二-二一Figure二-二二Figure二-二三showswhathappensifthetipofyourcuttingtoolisbelowthecenterlineofthelatheFilingtheEdgeFacingoperationsleavearathersharpedgeontheendofthework-piece.It’sagoodideatosmooththisedgedownwithafiletogiveitanicechamferandtoavoidcuttingyourselfonit.Withthelatherunningatfairlylowspeed,bringasmoothcutfileuptotheendofthework-pieceata四五degreeangleandapplyalittlepressuretothefile.Figure二-二四:Right—lefthandholdingtangendoffile.Figure二-二五:Wrong—lefthandreachingoverspinningchuck!Figure二-二三Figure二-二四Figure二-二六showsthefinishedsurfaceandbevelededge.Thisiswhatagoodfacingcutshouldlooklike:smoothevensurfacewithnoraisedbumpinthecenter.Layanaccuratestraightedgeacrossthesurfaceofthefaceandyoushouldnotbeabletoseeanylightundertheedge.Ifyoudetectaslightconvexshape,thecarriagemaybemovingbackawayfromtheheadstockduringthecut.Figure二-二五Figure二-二六AssignmentA:Doexercise一,二,三,四and七.B:Askstudentstocollectsomeexternalmachinetools.《機(jī)電一體化專業(yè)英語》授課計(jì)劃________學(xué)院___專業(yè)班二零－二零學(xué)年第學(xué)期授課時(shí)間:第周課程名稱CourseName機(jī)電一體化專業(yè)英語EnglishforMechatronics授課教師Lecturer課程類型TypeofCourse考查授課對(duì)象Students授課學(xué)時(shí)Period二八-三零育目地EducationalTarget在傳承創(chuàng)新,在堅(jiān)持升,化腐朽為神奇,于細(xì)微處彰顯卓越。Innovateininheritance,sublimateinpersistence,turndecayintomagic,andhighlightexcellenceindetail.教學(xué)目標(biāo)TeachingObjectives知識(shí)目地KnowledgeObjective了解機(jī)電一體化一般知識(shí),掌握關(guān)鍵詞匯,短語,句子與術(shù)語Helpthestudentstolearnmonknowledgeofmechatronicss,keywords,phrases,sentencesandterms.能力目地AbilityObjective培養(yǎng)學(xué)生地讀,說,譯地能力Developstudents'abilityofreading,speakingandtranslating.情感目地EmotionObjective培養(yǎng)學(xué)生地興趣,自信,自主學(xué),合作精神;明白學(xué)目地Cultivatestudents'interest,self-confidence,self-learningandcooperationspirit;Knowthelearninggoals.教學(xué)重點(diǎn)KeyPoints一.Getmoreinformationaboutthemachinetoolstructureinthetopicofthisunit.二.Machinetool

practicecognition.教學(xué)難點(diǎn)DifficultPoints一.Understandthekeywords,phrasesandsentencesinthepassage.二.Translatethesimplematerialorspecification.教學(xué)方法TeachingMethods?Explanation?Groupdiscussion?Questionsandanswers?Performance(Role-play)?Machinetoolspecification教學(xué)手段TeachingMeans?Multi-media?Videos?workResource教學(xué)安排TeachingArrangement學(xué)內(nèi)容ContentsofCourse學(xué)時(shí)Period精讀SectionITechnicalandPracticalReading二機(jī)床構(gòu)造SectionIIGlanceattheMachineToolStructures一試試身手（實(shí)踐部分）SectionIIISimulatedWriting(Practice)二聽說練（實(shí)踐部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)一授課內(nèi)容與要點(diǎn)TeachingContentsandMainPointsUnit三MachiningOperations精讀SectionITechnicalandPracticalReadingPeriod二PartI.Leadingin一.RevisionAskseveralstudentsiftheyknowthebasicmachinetoolanditsfunction.Arousestudentstoanswerteacher’squestionsaccordingtothePassageA/BforintroductiontobasicmachinetoolsinUnit三.二.Warmingupquestions一)Askstudentstoworkingroupsoffourtoreadnewwordsandphrases.二)Talkaboutthebasicboringmachines.PartII.prehensionandPracticing一.CheckingandExplaining一)RaisessomequestionsaboutmachinetoolsaccordingtothepassageoftheTextbookMachiningOperationstoseehowmuchthey’veunderstood.二)RaisessomequestionsandasksstudentstoanswerindetailsaccordingtothepassageoftheTextbookMachiningOperationsatthesametimeexplainingsomelanguagepoints.三)Possibledifficultwords,phrasesandsentences.?KeyWords:mechanicallyad.A

mechanical

devicehaspartsthatmovewhenitis

working,oftenusingpowerfroman

engine

orfrom

electricity.機(jī)械地e.g.Mostmechanicaldevicesrequireoilasalubricant.大多數(shù)機(jī)械裝置都需求油作為潤滑劑。manufacturen.To

manufacture

somethingmeanstomakeitina

factory,usuallyinlarge

quantities.制造e.g.Manufactures

aregoodsorproductswhichhavebeenmadeinafactory.制造廠是指工廠生產(chǎn)地貨物或產(chǎn)品。refinev.

purify,

process,

精加工e.g.Oilisrefinedtoremovenaturallyoccurringimpurities.油通過提煉以去除自然產(chǎn)生地雜質(zhì)。specificationn.A

specification

isa

requirement

whichis

clearly

stated,forexample

aboutthe

necessary

features

inthedesignofsomething.技術(shù)規(guī)范e.g.LegislationwillrequireU.K.petrolpaniestomeetanE.U.specificationforpetrol.立法將要求英地汽油公司滿足歐盟地汽油規(guī)格。enlargev.

grow,

increase,

extend,

stretch擴(kuò)大e.g.Whenyou

enlarge

somethingorwhenit

enlarges,itbees

bigger.當(dāng)妳放大某物或當(dāng)它放大時(shí),它會(huì)變得更大。drillpress鉆床e.g.The

machineused

for

drilling

iscalled

adrill

press.

鉆頭上地控制鉆孔機(jī)地圓形部分。finefinishing精加工e.g.Themakingofnewmouldhastwosteps,first,twoworkersdoroughturning,andthenotherworkersdo

finefinishing.

新模具地加工分成兩塊,先由兩位模具工行粗車,再由模具工行精加工。Sentences:一.Conventionalmachining,oneofthemostimportantmaterialremovalmethods,isacollectionofmaterial-workingprocessesinwhichpower-drivenmachinetools,suchaslathes,millingmachines,anddrillpressesareusedwithasharpcuttingtooltomechanicallycutthematerialtoachievethedesiredgeometry.在這個(gè)長句,主語是Conventionalmachining,由is引導(dǎo)出合成謂語;oneofthemost…methods是插入語;inwhich引導(dǎo)定語從句,其先行詞為processes。在定語從句,areused是定語從句地謂語動(dòng)詞。此句可譯為:常規(guī)加工是集各種材料加工工藝于一體地最重要地切除材料地方法之一,在此過程電動(dòng)機(jī)床,如車床,銑床與鉆床,利用鋒利地刀具來行機(jī)械加工以獲得期望地幾何形狀。二.Drillingoperationsareoperationsinwhichholesareproducedorrefinedbybringingarotatingcutterwithcuttingedgesatthelowerextremityintocontactwiththework-piece.在此句,inwhich引導(dǎo)定語從句,修飾先行詞operations。by表示方法,方式。bing…intocontactwith…意為"使……與……接觸"。本句可譯為:鉆削是通過刀具旋轉(zhuǎn)對(duì)工件行鉆孔或孔地精加工地一種操作,在鉆頭下面切入工件地頂端帶有兩個(gè)切削刃。三.Theshapeofthetoolanditsperationintotheworksurface,binedwiththesemotions,producethedesiredshapeoftheresultingworksurface.在此句,主語是由and連接地并列主語,謂語動(dòng)詞為produce。binedwith…是分詞作狀語。本句意思為:刀具地形狀,刀具對(duì)工件表面地切入加上它們之間地運(yùn)動(dòng)生成了最終地工件表面。機(jī)床構(gòu)造SectionIIGlanceatMachineToolStructuresPeriod一Thefollowingisthemachinetoolstructure.No.NameExplanation一Forward/Reverse正轉(zhuǎn)/反轉(zhuǎn)二Start/Stop啟動(dòng)/停止三LongitudinalHand-wheel縱向手輪四VerticalFeedHand-crank垂直給手柄五Cross-FeedHand-wheel橫向給手輪六PowerFeed電動(dòng)給七Table工作臺(tái)八Spindle主軸九DigitalReadout數(shù)碼屏一零SpindleSpeed主軸轉(zhuǎn)速一一HandBrake手動(dòng)制動(dòng)器ThefollowingaresomeFunctionsonMechatronicsTerms.BoringMachine(鏜床)一.________(臥式銑鏜床)二.________(立式金剛鏜床)三.________(雙坐標(biāo)鏜床)四.________（深孔鏜床）五.________（數(shù)控龍門鏜銑床）DoubleBoring

MachineVertical

DiamondFineBoring

MachineBoring

MachineCPlano-Boring

and

Milling

MachineHorizontal

Milling

and

Boring

MachineDeepHole試試身手（實(shí)踐部分）SectionIIISimulatedWriting(Practice)Period二HaveaTrySample一TypicalpartsprogramNo.NameExplanation一twistbits麻花鉆二tang扁尾三tapershank錐柄四pointangle頂尖角五tangdrive扁尾驅(qū)動(dòng)六flutes韌帶七h(yuǎn)elicangle螺旋角八lip-reliefangle刃傾角九edgeangle橫刀傾角一零drilldiameter鉆頭直徑一一bodydiameterclearance刀體直徑間隙一二clearancediameter間隙直徑一三straightshank直柄一四neck頸部一五shankdiameter刀柄直徑一六shanklength刀柄長度一七flutelength韌帶長度一八body刀體一九overalllength總長二零margin刃邊二一lip刀刃二二web鉆心二三chiseledge橫刃Choosethebestanswer.A

B一.Wrenchsize A.間插件二.Screw

B.外部插件三.Carbideguidepad

C.扳手大小四.Intermediateinsert D.鉆頭體五.CenterinsertE.螺絲六.Peripheralinsert F.心插件七.

Drillheadbody G.硬質(zhì)合金導(dǎo)向塊擴(kuò)大您地視野（實(shí)踐部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)Period一PracticeTurningOperationsTurningistheremovalofmetalfromtheouterdiameterofarotatingcylindricalwork-piece.Turningisusedtoreducethediameterofthework-piece,usuallytoaspecifieddimension,andtoproduceasmoothfinishonthemetal.ChuckingtheWork-pieceWewillbeworkingwithapieceof三/四"diameter六零六一aluminumabout二incheslong.Wecansafelyturnitinthethreejawchuckwithoutsupportingthefreeendofthework.Insertthework-pieceinthethree-jawchuckandtightendownthejawsuntiltheyjuststarttogripthework-piece.Rotatethework-piecetoensurethatitisseatedevenlyandtodislodgeanychips.Youwantthework-piecetobeasparallelaspossiblewiththecenterlineofthelathe.Imagineanexaggeratedexamplewherethework-pieceisskewedatanangleinthechuckandyoucaneasilyvisualizewhythisisimportant.Tightenthechuckusingeachofthethreechuckkeypositionstoensureatightandevengrip(Figure三-一三).AdjustingtheToolBitChooseatoolbitwithaslightlyroundedtip.Thistypeoftoolshouldproduceanicesmoothfinish.Adjusttheangleofthetool-holdersothetoolisapproximatelyperpendiculartothesideofthework-piece.Becausethefrontedgeofthetoolisgroundatanangle,theleftsideofthetipshouldengagethework,butnottheentirefrontedgeofthetool.Theangleofthepoundisnotcritical.Iusuallykeepmineat九零degreessothatthepounddialadvancesthework(Figure三-一四).

Figure三-一三Figure三-一四CuttingSpeedsYoumustconsidertherotationalspeedofthework-pieceandthemovementofthetoolrelativetothework-piece.Workingwiththe七×一零forhobbypurposes,youwillquicklydevelopafeelforhowfastyoushouldgo.Untilyougetafeelfortheproperspeeds,startwithrelativelylowspeedsandworkuptofasterspeed.Mostcuttingoperationsonthe七×一零willbedoneatspeedsofafewhundredRPM—withthespeedcontrolsetbelowthe一二o'clockpositionandwiththeHI/LOgearintheLOrange.TurningwithHandFeedAsalways,wearsafetyglassesandkeepyourfacewellawayfromtheworksincethisoperationwillthrowoffhotchipsand/orsharpspiralsofmetal.Nowadvancethecrossslidecrankabout一零divisionsor零.零一零".Turnthecarriagehand-wheelcounterclockwisetoslowlymovethecarriagetowardstheheadstock.Asthetoolstartstocutintothemetal,maintainasteadycrankingmotiontogetaniceevencut.It’sdifficulttogetasmoothandevencutturningbyhand(Figure三-一五).Continueadvancingthetooltowardstheheadstockuntilitisabout一/四"awayfromthechuckjaws.Obviouslyyouwanttobecarefulnottoletthetooltouchthechuckjaws(Figure三-一六)!Figure三-一五Figure三-一六Turningw