大学《工程制图》期末复习要点总结

期末复习ReviewLesson考试时间：80分钟一、点、线、面point,lineandplane二、正投影基本规律Orthographicprojectionprinciple主视图thefrontview(Verticalprojection正面投影)俯视图thetopview(Horizontalprojection水平投影)左视图theleftsideview(Profileprojection侧面投影)平面立体Polyhedron曲面立体Solidsofrevolution棱柱prism三、基本立体Basicgeometricsolids棱锥pyramid圆柱cylinder圆锥cone圆球sphereQuestionexample:PointAliesontheprism,givenitsverticalprojection,pleasefinditsanothertwoprojections.Locationofpointsonasolid平面立体Polyhedron曲面立体Solidsofrevolution棱柱prism：四、截交线Intersectionlineofplanesandsolidsurfaces斜截、开槽、穿方孔棱锥pyramid：圆柱cylinder：三种截切位置、切角、切槽、穿方孔圆锥cone：五种截交线形状圆球sphere：交线为圆注意：组合截切棱柱－圆柱圆柱－圆柱五、相贯Intersectionofsurfacesofgeometricsolids交线形状、位置；方孔重点是正贯（包括孔相贯）、方向、等径相贯圆柱－圆锥辅助平面法，考的不多同轴回转体相贯线为圆U形槽

组合相贯平齐、不平齐aligned,nonaligned相切、相交Tangency,intersection六、组合体Compositesolids阶梯孔steppedholes类似形analogousfigure形体分析法Theanalysisbytakingtheobjectapart线面分析法Theanalysisonlinesandsurfaces尺寸标注Dimensioning视图views全剖视图Fullsectionalview七、机件表达方法RepresentationofParts

基本视图、向视图、局部视图、斜视图外简内繁半剖视图Halfsectionalview内外均需表达的对称机件局部视图Localsectionalview内外均需表达的不对称机件其他剖视方法断面Cross-section阶梯剖offsetsection、旋转剖alignedsection、斜剖inclinedsection、复合剖compoundsection综合表达Comprehensiverepresentationofapart移出断面、重合断面注意：剖面线、波浪线、标注、虚线外螺纹画法Representationofexternalthread内螺纹画法Representationofinternalthread五、标准件Standardparts内外螺纹的连接画法Representationofmatingthreads螺栓连接的画法Representationofboltjoints螺柱连接的画法Representationofstudjoints螺钉连接的画法Representationofscrewjoints2.Selectthecorrectanswer.(Singlechoiceormulti-choice)Questionexamples:

1.Addsomemissinglinesinthefollowingviews.3.Findtheerrorsinthegivenviewsandcorrectthem.Error-correcting纠错4.Pleasedrawthreeprojections(views)forthegivensolid.5.Twoprojections(views)ofanobjectaregiven,drawitsthirdprojection.6.PointAliesontheprism,givenitsverticalprojection,pleasefinditsanothertwoprojections.8.Changethefrontviewtoafullsectionalview.Questionexamples:

7.Visualizetheshapeofthepartaccordingtotheviewsgivenbelow.Representthepartbyusingsuitablerepresentation.9.Makeafullsectionintheleftsideview,pleasedrawthe(A-A)leftsidefullsectionalview.