装配图的部件测绘和画图

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1、MappingtheUnitsandRepresentationofAssemblyDrawings部件测绘与画装配图的方法Exercises练习题MappingtheUnitsandRepresentationofAssemblyDrawings部件测绘与画装配图请点击相应标题显示其内容MappingtheUnitsandRepresentationofAssemblyDrawings部件测绘与画装配图方法5.Preliminarydrafting画出底稿6.Completingtheentiredrawing完成全图7.Final

2、check全面校核1.Understandingthesubassembly了解部件4.Determiningtherepresentation确定表达方案请点击鼠标左键显示后面内容2.Drawingtheassemblyschematicdrawings画装配示意图3.Mappingtheassembly测绘装配体3.DrawanassemblydrawingofflatnosepliersonA2sheet(scale1:1).在A2图纸上，按11的比例拼画平口钳装配图。Exercises练习题请点击相应题目显示其内容2.Mak

3、eanassemblydrawingaccordingtotheaxonometricprojectionofalowpulleydeviceonA3sheet(scale1:1).参照低速滑轮装置的轴测图,用A3图纸按11比例由零件图拼画其装配图。1.MakeanassemblydrawingaccordingtothepulleydeviceonA4sheet.参照带轮装置的立体图,用A4图纸由零件图拼画其装配图。本小节结束谢谢您的认真学习！退出前一页Understandingthesubassembly了解部件请点击鼠标左键显

4、示后面内容Makethepurpose,workingprinciples,fittingrelationships,transmissionroutesoftheassemblyandthebasicstructuresofthemajorpartsveryclear,andthenproduceanassemblysketchmap.弄清装配体的用途、工作原理、装配关系、传动路线及主要零件的基本结构。Takeflatnoseclampsasanexample以平口钳为例Makingthepurposeclear用途(2)Worki

5、ngprincipleandtransmissionroute工作原理与传动路线(3)FittingrelationshipBasicstructuresofthemajorparts装配关系及零件基本结构Analysisoftherepresentationofaflatnoseclampassemblydrawing平口钳装配关系轴测图Sketchmapofaflatnosepliersassembly平口钳装配关系示意图Sketchmapofaflatnosepliersassembly平口钳装配关系示意图主视图沿前后对称面全剖

6、左视图沿此面半剖或局部剖俯视图在螺钉联接处局部剖用局部向视图表达该件形状用局部放大图表达该螺纹牙形用断面图表达轴端切平面结构SketchDeterminingtherepresentation确定表达方案Drawtheborderandtitleblock.画图幅边框、图框及标题栏。Generalstepsforpreliminarydrafting(Using2HorHpencilandcompass):画底稿的一般步骤(用2H或H的硬芯铅笔及圆规)Preliminarydrafting画出底稿请点击鼠标左键显示后面内容2)Spec

7、ifythedrawing’spositioninthebordersaccordingto3:4:3,thendrawthedatumlines,linesofsymmetryandaxisshaftlines.按3:4:3布局法确定图形在图框中的位置，画各图形的基准线、对称线、轴线等。3)Accordingtothethree-alignmentrule,firstdrawthemajorpart,andthendrawtheneighboringparts.按三等规律先画其主要零件，然后根据各零件的连接关系，从相邻零件开始，依次

8、画出其他零件。4)Drawthedetailedstructureofeachpartandcompletethedrawing.Payattentiontothefittingrelationshipbetweenco