組合體的尺寸標(biāo)注DimensioningCompositeSolids主講人：李帥教學(xué)目標(biāo)Teachingobjectives1.了解基本立體的定形尺寸2.熟悉各類尺寸的含義3.掌握組合體的尺寸標(biāo)注UnderstandthefixeddimensionsofbasicsolidsFamiliarwiththemeaningofvarioussizesMasteringtheDimensioningofCompositeBodies123目錄CONTENTS基本立體的尺寸標(biāo)注尺寸的分類組合體的尺寸標(biāo)注DimensioningofbasicsolidsClassificationofdimensionsDimensioningCompositeSolids4思考題Reflectionquestions1基本立體的尺寸標(biāo)注DimensioningofbasicsolidsONE長long寬wid高h(yuǎn)igh曲面立體curvedsolid高度height直徑diameter平面立體planebody2尺寸的分類ClassificationofdimensionsTWO完整的圖樣尺寸Completedrawingdimensions完整的圖樣尺寸Completedrawingdimensions結(jié)構(gòu)尺寸structuresize相對(duì)位置尺寸Relativepositionsize尺寸的分類Classificationofdimensions定形尺寸sizedimension定位尺寸Positioningdimensions總體尺寸Overalldimensions確定機(jī)件各組成部分形狀和大小Determinetheshapeandsizeofeachcomponentofthemachine定形尺寸Shapingsize6six32thirty-two確定組合體各組成部分之間的相對(duì)位置關(guān)系Determinetherelativepositionalrelationshipbetweenthecomponentsofthecombination定位尺寸locationsize底面尺寸基準(zhǔn)Dimensionreference對(duì)稱面重要端面Importantendface定位尺寸標(biāo)注的起點(diǎn)Positionthestartingpointofthedimension長度方向尺寸基準(zhǔn)Lengthdirectiondimensionreference長度方向?qū)挾葴?zhǔn)Lengthdirectionandwidthaccuracy高度方向?qū)挾葴?zhǔn)Heightdirectionandwidthaccuracy確定組合體長、寬、高最大外形尺寸Determinethemaximumexternaldimensionsofthecombinationbodyintermsoflength,width,andheight總體尺寸populationsize60sixty6six22twenty-two＋＋＋＋＋＋32thirty-two3組合體的尺寸標(biāo)注DimensioningCompositeSolidsTHREE1one形體分析shapeanalysis圓筒cylinder底板floor支撐板Supportplate肋板Ribplate2two定型尺寸Fixedsize1one形體分析shapeanalysis肋板Ribplate支撐板Supportplate圓筒cylinder底板floorfourteentwenty-fourtwosixtwothirteensixthirty-sixsixtyforty-twotwenty-two3three定位尺寸Positioningdimensions2two1one定型尺寸Fixedsize形體分析shapeanalysis高度方向基準(zhǔn)Heightdirectionreference32thirty-two長度方向基準(zhǔn)Lengthdirectionreference48forty-eight寬度方向基準(zhǔn)Widthdirectionreference16sixteenfourteentwosixtwothirteensixthirty-sixsixtyforty-twotwenty-twosix4four總體尺寸Overalldimensions3three定位尺寸Positioningdimensions2two1one定型尺寸Fixedsize形體分析shapeanalysis6322260總長Totallength總寬22總高Height不重復(fù)no-repeat不遺漏Noomission4思考題QuestionsTOUR12請(qǐng)思考如下問題Pleasethinkthefollowingquestions定形尺寸與定位尺寸各有什么作用?尺寸基準(zhǔn)通常采用哪些線或者面表示?Whatarethefunctionso