NO3机械图样的表示法(2-剖视图)

Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.NO3机件常用的表达方法•§3-1视图•§3-2剖视图•§3-3断面图•§3-4局部放大图&简化表达方法一、剖视图的形成、画法及标注二、剖视图的种类及其应用三、剖切面的选择§3-2剖视图Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.视图主要用来表达机件的外部形状。当机件内部结构比较复杂时，视图上就会出现较多虚线而使图形不清晰，不便于看图和标注尺寸。为了清晰地表达机件的内部结构，常采用剖视这种表达方法。Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.一、剖视图的形成、画法及标注6.画剖视图的方法与步骤5.画剖视图时应注意的事项4.剖视图的配置3.剖视图的标注2.剖面符号1.剖视图的形成Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.1.剖视图的形成Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.2.剖面符号Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.3.剖视图的标注Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.4.剖视图的配置Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.5.画剖视图时应注意的事项Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.6.画剖视图的方法与步骤几种结构不同的零件的剖视A-AAABBBB-CC-CC一般按剖开机件的范围大小不同，剖视图可分为：全剖视图、半剖视图和局部剖视图二、剖视的种类及其应用Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.1.全剖视图EG1：将主视图改为的全剖视图Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.２.半剖视图Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.当机件的形状接近于对称，而其不对称部分已在其他视图中表达清楚时，也可画成半剖视图EG1：补画左视图，将主视图、左视图作半剖视图。Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.3.局部剖视图Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.(1)局部剖视图适用范围Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.(2)画局部剖视图注意事项剖视图视图剖视图EG1：在视图中的适当位置作局部剖视图。注意：同一机件剖面线间隔、方向均相同。？采用全剖、半剖剖切视图断裂线断裂线波浪线穿槽而过波浪线超出轮廓线外波浪线穿孔而过波浪线与轮廓线重合EG2:波浪线不能穿空而过，也不能超出视图的轮廓线。×××××1.单一剖切面2.几个平行的剖切平面——阶梯剖3.几个相交的剖切面—旋转剖三、剖切面的选用这里所述的剖切面，不仅适用于画剖视图，也适用于断面图。Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.一、单一剖切面Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.二、几个平行的剖切平面Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.『采用几个平行的剖切平面剖切画剖视图时应注意』Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.3.几个相交的剖切面（交线垂直于某一投影面）Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.『采用几个相交剖切平面剖切画剖视图时应注意』Copyright2009-2014HefeiUniversityofTechnology&BENGBUCOLLEGEJDXZHANGXIANGCHUNAllrightsreserved.AAAAAA表达机构的传动路线和装配关系，假想按传动顺序，用若干个剖切平面沿其轴线剖开，展开。传动路线按传动路线展开ⅠⅡⅢⅣⅠⅡⅣⅠⅢⅣⅡⅢ•作图提醒：剖面线一般情况是45°的细实线，请用45°的三角板绘制；能省略的虚线不要画出来。