机械制图-零件图习题(课堂PPT).ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,习P70,1,习P70,2,习P70,3,其余,未注圆角R1-3,支 座,制图,审核,材料,比例,数量,共 张第 张,内蒙古工业大学,预科05-3,HT200,11,19,1,1,2007.4.20,孔,习P70,4,习P70,5,习P71,6,孔,蜗轮箱体,制图,审核,材料,比例,数量,共 张第 张,内蒙古工业大学,预科05-3,HT200,11,19,1,1,2007.4.23,其余,未注圆角R1-2,习P71,7,习题集P73,1.已知轴承盖表面的,R,a,值（见下表），在图中注出表面粗糙度。,表面位置,A B C,D,E F,其余,Ra,(,m,),1.6,0.4,12.5,A,B,C,D,E,F,12.5,1.6,1.6,0.4,1.6,12.5,其余,8,习题集P73,6.3,3.2,3.2,3.2,3.2,0.4,1.6,3.2,3.2,C2,C2,6.3,其余,3.2,3.2,1.6,3.2,3.2,0.4,32,12,8,40,20,30,50,50,30,12,3.2,32,8,20,40,2.,圈出左图表面粗糙度标注错误，并在右图中重新标注。,9,20,+0.021,0,习题集P73,1.根据装配图的配合尺寸，在零件图上注基本尺寸和偏差数值,填表。,33,20,H7,s6,H7,g6,配合标记,基本尺寸,配合制度,公差等级,孔偏差数值,轴偏差数值,配合种类,孔,轴,上,下,上,下,H7/s6,H7/g6,33,20,7,7,6,6,+0.025,+0.021,0,0,+0.059,-0.007,+0.043,-0.020,基孔制,基孔制,过盈配合,间隙配合,33,+0.059,+0.043,33,+0.025,0,20,-0.007,-0.020,查表P300-305,查,表,先填表后注尺寸,10,2.,孔和轴的基本尺寸为25，采用基孔制配合。孔IT7、轴IT6、轴基本偏差,k,在零件图中标出基本尺寸及公差代号，在装配图中注出配合尺寸，填表。,配合种类,配合标记,孔的极限尺寸,最大,轴的极限尺寸,最小,最大,最小,H7/k6,25.021,25,25.015,25.002,过渡配合,25,H7,k6,25k6,25H7,查表P305 P302,查,表,先注尺寸后填表,11,0,-250,0,-160,0,-100,0,-62,0,-39,0,-25,0,-16,0,-11,-9,-34,-9,-25,-9,-20,-25,-87,-25,-64,-25,-50,-25,-41,-25,-36,40,30,30,24,0,-210,0,-130,0,-84,0,-52,0,-33,0,-21,0,-13,0,-9,-7,-28,-7,-20,-7,16,-20,-72,-20,-53,-20,-41,-20,-33,-20,-29,24,18,18,14,0,-180,0,-110,0,-70,0,-43,0,-27,0,-18,0,-11,0,-8,-6,-24,-6,-17,-6,-14,-16,-59,-16,-43,-16,-34,-16,-27,-16,-24,14,10,12,11,10,9,8,7,6,5,7,6,5,9,8,7,6,5,至,大于,h,g,f,常用公差带/,m,基本尺寸,/,mm,+152,+136,+130,+114,+113,+97,+97,+81,+95,+70,+86,+70,+79,+54,+70,+54,+65,+54,50,40,+128,+112,+110,+94,+96,+80,+84,+68,+85,+60,+76,+60,+73,+48,+64,+48,+59,+48,+68,+43,+59,+43,+54,+43,+59,+34,+50,+34,+45,+34,40,30,+101,+88,+88,+75,+77,+64,+68,+55,+69,+48,+61,+48,+62,+41,+54,+41,+50,+41,30,24,+86,+73,+76,+63,+67,+54,+60,+47,+62,+41,+54,+41,-,-,-,+56,+35,+48,+35,+44,+35,+49,+28,+41,+28,+37,+28,24,18,6,6,6,6,7,6,7,6,5,7,6,5,7,6,5,至,大于,z,y,x,v,u,t,s,r,常用公差带/,m,基本尺寸,/,mm,50,40,+12,-27,+7,-18,+3,-13,19,12,8,+250,0,+160,0,+100,0,+62,0,+39,0,+25,0,+16,0,+34,+9,+25,+9,40,30,30,24,+10,-22,+6,-15,+2,-11,16,10,6.5,+210,0,+130,0,+84,0,+52,0,+33,0,+21,0,+13,0,+28,+7,+20,7,24,18,18,14,+8,-19,+6,-12,+2,-9,13,9,5.5,+180,0,+110,0,+70,0,+43,0,+27,0,+18,0,+11,0,+24,+6,+17,+6,14,10,8,7,6,8,7,6,12,11,10,9,8,7,6,7,6,至,大于,K,JS,H,G,常用公差带 /,m,基本尺寸,/,mm,书P303,书P305,书P301,返,回,12,50,40,+12,-27,+7,-18,+3,-13,19,12,8,+250,0,+160,0,+100,0,+62,0,+39,0,+25,0,+16,0,+34,+9,+25,+9,40,3030,24,+10,-22,+6,-15,+2,-11,16,10,6.5,+210,0,+130,0,+84,0,+52,0,+33,0,+21,0,+13,0,+28,+7,24,18,18,14,+8,-19,+6,-12,+2,-9,13,9,5.5,+180,0,+110,0,+70,0,+43,0,+27,0,+18,0,+11,0,+24,+6,+17,+6,14,10,8,7,6,8,7,6,12,11,10,9,8,7,6,7,6,至,大于,K,JS,H,G,常用公差带 /,m,基本尺寸,/,mm,书P305,50,40,+51,+26,+42,+26,+37,+26,+42,+17,+33,+17,+28,+17,+34,+9,+25,+9,+20,+9,+27,+2,+18,+2,+13,+2,12,8,5.5,40,30,30,24,+43,+22,+35,+22,+31,+22,+36,+15,+28,+15,+24,+15,+29,+8,+21,+8,+17,+8,+23,+2,+15,+2,+11,+2,10,6.5,4.5,24,18,18,14,+38,+18,+29,+18,+26,+18,+30,+12,+23,+12,+20,+12,+25,+7,+18,+7,+15,+7,+19,+1,+12,+1,+9,+1,9,5.5,4,14,107,6,5,7,6,5,7,6,5,7,6,5,7,6,5,至,大于,p,n,m,k,js,常用公差带/,m,基本尺寸,/,mm,+20,+7,书P302,返,回,13,习P74,端 盖,HT150,35,20,10,R,c,1/4,10,18,5,55g6,R2,C1.5,0.04,A,0.06,A,A,72,B,B,B,B,B-B,5,其余,12,32,90,16H7,32H9,52,42,1.6,1.6,10,1.6,1.6,10,6.3,10-6 画出端盖右视图，并用,标出长宽高尺寸基准。,读图问题：,主视图为何种表达方法，采用该表达方法的条件是什么？,指出零件有哪些表面是铸造面？,说明主视图中“Rc1/4”和“,”的含义。,锐边倒角C1,制图,审核,共1张 第1张,（单位）,数量,材料,比例,3,x,M5 13,孔,15,6,x,6,12 6,66,12 6,37,14,左视,右视,左视,右视,主视复合剖,习P74,15,习P74,30,30,14,86,R40,30,90,70,114,175,3,4,55,35H9,2,2,8,4,C1,B,B,0.05,A,A,R9,R6,2M8,15,20,60,120,35,10,8,30,7,50,50,其余,6.3,6.3,6.3,1.6,6.3,6.3,6.3,10-7 画出托脚的左视图，并用,分别标出长宽高尺寸基准。,未注圆角R1-3,读图问题：,安装板上2个孔为什么设计成长圆形？,16,习P74,17,D,D,D-D,20,38,22,15,H,7,15,55,+0.1,0,86,70,6,x,M6-7H 14,60,82,16,30,38,5,28,68,74,96,78,12,38,50,3.2,3.2,12.5,6.3,3.2,6.3,12.5,12.5,12.5,其余,10,G1/8,2,x,9,20,3,x,M4H7 10,C,C,30,螺孔大径,3/4,细实圆,补全点画线,铸造圆角,习P75,18,习P75,19,12.5,B,B,6.3,25,G1 1/4,4,A,A,6.3,70,50,32,70,50,15,40,4,30,C2,15,R6,4,R30,3,30,35,38,R10,习P76,20,A,A,习P76,80,60,70,50,35,38,R10,4,x,M6-6H,31,40,110,53,30,15,28,12,5,38,35,27,+0.027,0,45,3,6,10,8,x,90,6,4,R30,8,R30,12,5,M42,x,2-6H,60,3,x,2,C1,C3,R5,其余,铸造圆角,R1-3,通孔,25,6.3,25,25,6.3,6.3,3.2,25,12.5,12.5,12.5,3.2,25,A-A,剖面线一致,螺孔剖面线,画到小径,铸造圆角,21,习P76,22,A,习P77,40,70,18,55,70,12,40,M27,x,2,8,R18,16,C2,90,28,5,4,30,D,D,C,40,8,8,35,70,30,x,30,42,x,42,26,16,16,B,R6,4,x,M8,C-C,B,50,2,x,M8,R6,26,A,D-D,6.3,其余,未注圆角,R,2,12.5,1.6,6.3,3.2,12.5,6.3,3.2,读图问题：,看懂零件结构形状，说明,A,和,B,所代表的相应的投影位置。,零件底板上的,4,个小孔为什么采,用凹孔结构？,10-10 看懂阀座零件图，画出,C-C,剖视图，并完成,B,向视图（主视外形图）。,4,x,7,12,6.3,C,26,剖面线一致,剖面线,画到小径,圆角,作图线,23,习P77,24,习P77,25,B-B,A-A,C-C,其余,铸造圆角,R,1-3,10-11看懂零件形状，画出,A-A,、,B-B,、,C-C,剖视图。,24,25,40,48,52,40,30,14,38,100,55,44,45,M363,18,R47,8,C2,C2,C2,70,C2,G1,54,40,C2,82,70,B,A,C,C,6.3,6.3,6.3,6.3,6.3,6.3,6.3,6.3,1.6,R10,212,A,B,6.3,46,30,60,90,60,90,54,52,105,41,72,28,R15,411,通孔,6,C2,C2,G1,1.6,6.3,6.3,1.6,6.3,6.3,习P78,26,习P78,27,习P78,28,26,80,115,8,105,6,6,15,20,3,35,10,50,130,50,22,28,32,C1,C2,44,R5,50,50,65,100,40,13,25,24,36,6,70,5,32,35,18,30,15,25,36,R5,A,A,A-A,B-B,B,B,6,M483,铸造圆角,R1-3,28,R10,其余,12.5,6.3,6.3,6.3,3.2,6.3,6.3,12.5,12.5,210,20,6.3,6.3,40,习P79,29,10-12,读懂零件形状，分析零件尺寸；画出主视、左视外形图。,习P79,30,31,