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?互换性与测量技术根底?习题参考解答
第二章 光滑圆柱体结合的公差与配合
1.
孔或轴 最大极限尺寸 最小极限尺寸 上偏差 下偏差 公差 尺寸标注
孔: Φ10
9.985 9.970 -0.015 -0.030
0.01
5
Φ10
孔: Φ18
18.017 18
+0.01
7
0
0.01
7
Φ18
孔: Φ30
30.012 29.991
+0.01
2
-0.009
0.02
1
Φ30
轴: Φ40
39.95 39.888 -0.050 -0.112
0.06
2
Φ40
轴: Φ60
60.041 60.011
+0.04
1
+0.01
1
0.03
0
Φ60
轴: Φ85
85 84.978 0 -0.022
0.02
2
Φ85
2. 1) X
max
= 0.033- (-0.098) = 0.131mm
X
min
= 0 - (-0.065) = 0.065mm
T
f
= | 0.131-0.065 | =
0.066mm
2) Y
max
= 0 – 0.060 = -0.060mm
Y
min
= 0.030 – 0.041 = -
0.011mm
T
f
= | -0.060+0.011 | =
0.049mm
3) X
max
= 0.007- (-0.016)
=0.023mm
Y
max
= -0.018 – 0 = -0.018mm
T
f
= | 0.023 – (-0.018)| =
0.041mm
4) X
max
= 0.039 - 0.002 =
0.037mm
Y
max
= 0 – 0.027 = -0.027mm
T
f
=|0.037 – (-0.027)| = 0.064mm
5) X
max
= 0.074 – (-0.140) = 0.214mm
X
min
= 0 - (-0.030) = +0.030mm
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