机械制图零件图习题.ppt

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1、习P70,习P70,习P70,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,孔,习P70,习P70,习P71,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,其余,未注圆角R1-2,习P71,习题集P73,1.已知轴承盖表面的Ra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,习题集P73,6.3,3.2,3.2,3.2,3.2,0.4,1.

2、6,3.2,3.2,C2,C2,32,12,8,40,20,30,50,50,30,12,32,8,20,40,2.圈出左图表面粗糙度标注错误，并在右图中重新标注。,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,查表P300-305,查表,先填表后注尺

3、寸,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,25k6,25H7,查表P305 P302,查表,先注尺寸后填表,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-

4、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

5、,+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+2

6、8,24,18,6,6,6,6,7,6,7,6,5,7,6,5,7,6,5,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,+2500,+1600,+1000,+620,+390,+250,+160,+34+9,+25+9,40,30,30,24,+10-22,+6-15,+2-11,16,10,6.5,+2100,+1300,+840,+520,+330,+210,+130,+28+7,+20+7,24,18,18,14,+8-19,+6-12,+2-9,13,9,5.5,+1800,+1100,+7

7、00,+430,+270,+180,+110,+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,50,40,+12-27,+7-18,+3-13,19,12,8,+2500,+1600,+1000,+620,+390,+250,+160,+34+9,+25+9,40,30,30,24,+10-22,+6-15,+2-11,16,10,6.5,+2100,+1300,+840,+520,+330,+210,+130,+28+7,24,18,18

8、,14,+8-19,+6-12,+2-9,13,9,5.5,+1800,+1100,+700,+430,+270,+180,+110,+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

9、,+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+1,9,5.5,4,14,10,7,6,5,7,6,5,7,6,5,7,6,5,7,6,5,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,习P74,端 盖,HT150,35,20,10,Rc1/4,10,18,5,55g6,R2,C1.5,0.04,A,0.06,A,A,72,B,

10、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,3xM5 13,孔,15,6x6,12 6,66,12 6,37,左视,右视,左视,右视,主视复合剖,习P74,习P74,30,30,14,86,R40,30,90,70,114,175,3,4,55,35

11、H9,2,2,8,4,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？,习P74,D,D,D-D,20,38,22,15H7,15,55,+0.1,0,86,70,6xM6-7H 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

12、,其余,10,G1/8,2x9,20,3xM4H7 10,C,C,习P75,习P75,12.5,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,A,A,习P76,80,60,70,50,35,38,R10,4xM6-6H,31,40,110,53,30,15,28,12,5,38,35,27,+0.027,0,45,3,6,10,8x90,6,4,R30,8,R30,12,5,M42x2-6H,60,3x2,C1,C3,R5,其余,铸造圆角R1-3,通孔,25,6.

13、3,25,25,6.3,6.3,3.2,25,12.5,12.5,12.5,3.2,25,习P76,A,习P77,40,70,18,55,70,12,40,M27x2,8,R18,16,C2,90,28,5,4,30,D,D,C,40,8,8,35,70,30 x30,42x42,26,16,16,B,R6,4xM8,C-C,B,D-D,6.3,其余,未注圆角R2,12.5,1.6,6.3,3.2,12.5,6.3,3.2,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

14、（主视外形图）。,4x7,12,6.3,C,26,习P77,习P77,B-B,A-A,C-C,其余,铸造圆角R1-3,10-11看懂零件形状，画出A-A、B-B、C-C剖视图。,习P78,习P78,习P78,26,80,115,8,105,6,6,15,20,3,35,10,50,130,50,22,28,32,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P79,10-12 读懂零件形状，分析零件尺寸；画出主视、左视外形图。,习P79,