精确用孔的孔间距允许偏差
精确用孔的孔间距允许偏差
精确用孔的孔间距允许偏差 |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
连 接 型 式 |
Ⅰ |
Ⅱ |
Ⅲ |
Ⅳ |
Ⅴ |
|||||||
连接特性 |
螺栓 △L= ±SM |
螺钉或销 钉△L= ±0.5SM |
螺栓 △L= ±0.7SM |
螺钉或销 钉△L= ±0.35SM |
螺栓 △L= ±0.5SM |
螺钉或销 钉△L= ±0.25SM |
螺栓 △L= ±0.45SM |
螺钉或销 钉△L= ±0.225SM |
螺栓 △L= ±0.35SM |
螺钉或销 钉△L= ±0.175SM |
||
螺栓和 销钉直径 |
配合 |
最小间隙SM |
允 许 偏 差 ±△L/mm |
|||||||||
2~3 |
|
0.008 |
0.008 |
|
0.006 |
|
|
|
|
|
|
|
3~6 |
0.010 |
0.010 |
|
0.007 |
|
0.005 |
|
|
|
|
|
|
6~10 10~18 |
0.013 0.016 |
0.013 0.016 |
|
0.009 0.011 |
0.005 0.006 |
0.006 0.008 |
|
0.006 0.007 |
|
0.005 0.006 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2~3 |
|
0.012 |
0.012 |
0.006 |
0.008 |
|
0.006 |
|
0.005 |
|
|
|
3~6 |
0.017 |
0.017 |
0.009 |
0.012 |
0.006 |
0.008 |
|
0.007 |
|
0.006 |
|
|
6~10 10~18 |
0.023 0.030 |
0.023 0.030 |
0.012 0.015 |
0.016 0.021 |
0.008 0.010 |
0.011 0.015 |
0.006 0.008 |
0.010 0.013 |
0.005 0.006 |
0.008 0.011 |
0.005 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2~3 |
|
0.018 |
0.018 |
0.009 |
0.013 |
0.006 |
0.009 |
0.005 |
0.008 |
|
0.006 |
|
3~6 |
0.025 |
0.025 |
0.013 |
0.018 |
0.009 |
0.013 |
0.006 |
0.011 |
0.005 |
0.009 |
|
|
6~10 10~18 |
0.035 0.045 |
0.035 0.045 |
0.018 0.023 |
0.025 0.032 |
0.012 0.016 |
0.018 0.023 |
0.009 0.011 |
0.016 0.020 |
0.008 0.010 |
0.012 0.016 |
0.006 0.008 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2~3 |
|
0.007 |
0.007 |
|
0.005 |
|
|
|
|
|
|
|
3~6 |
0.011 |
0.011 |
0.006 |
0.008 |
|
0.006 |
|
0.005 |
|
|
|
|
6~10 10~18 |
0.015 0.020 |
0.015 0.020 |
0.008 0.010 |
0.011 0.014 |
0.006 0.007 |
0.008 0.010 |
0.005 |
0.007 0.009 |
|
0.005 0.007 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2~3 |
|
0.017 |
0.017 |
0.009 |
0.012 |
0.006 |
0.009 |
|
0.007 |
|
0.006 |
|
3~6 |
0.025 |
0.025 |
0.013 |
0.018 |
0.009 |
0.013 |
0.006 |
0.011 |
0.005 |
0.009 |
|
|
6~10 10~18 |
0.035 0.045 |
0.035 0.045 |
0.018 0.023 |
0.025 0.032 |
0.012 0.016 |
0.018 0.023 |
0.009 0.011 |
0.016 0.020 |
0.008 0.010 |
0.012 0.016 |
0.006 0.008 |
|
注:1.计算公式和偏差值是按零件完全互换条件下计算的。当大批生产或连续生产以及当单位或部分调整时,偏差可增大1.3倍(△L' =1.3△L)。 2.连接型式的意义见表连接型式及特性分类。 |