互換性與測量技術(shù)基礎(chǔ)第四版答案

1、1《互換性與測量技術(shù)基礎(chǔ)互換性與測量技術(shù)基礎(chǔ)》習(xí)題參考解答習(xí)題參考解答（第3版）第二章第二章光滑圓柱體結(jié)合的公差與配合光滑圓柱體結(jié)合的公差與配合1.孔或軸最大極限尺寸最小極限尺寸上偏差下偏差公差尺寸標注孔:Φ109.9859.9700.0150.0300.015Φ10015.0030.0??孔:Φ1818.017180.01700.017Φ18017.00?孔:Φ3030.01229.9910.0120.0090.021Φ30012.0

2、009.0??軸:Φ4039.9539.8880.0500.1120.062Φ40050.0112.0??軸:Φ6060.04160.0110.0410.0110.030Φ60041.0011.0??軸:Φ858584.97800.0220.022Φ850022.0?2.1)Xmax=0.033(0.098)=0.131mmXmin=0(0.065)=0.065mmTf=|0.1310.065|=0.066mm2)Ymax=0–0.06

3、0=0.060mmYmin=0.030–0.041=0.011mmTf=|0.0600.011|=0.049mm3)Xmax=0.007(0.016)=0.023mmYmax=0.018–0=0.018mmTf=|0.023–(0.018)|=0.041mm4)Xmax=0.0390.002=0.037mmYmax=0–0.027=0.027mmTf=|0.037–(0.027)|=0.064mm5)Xmax=0.074–(0.140)

4、=0.214mmXmin=0(0.030)=0.030mmTf=|0.214–0.030|=0.184mm6)Xmax=0.009–(0.019)=0.028mmYmax=0.021–0=0.021mmTf=|0.028–(0.021)|=0.049mm3.(1)Φ50Xmax=0.089mmXmin=0.025mm基孔制、間隙配合)(7f)(8H025.0050.0039.00???（2）Φ80Xmax=0.250mmXmin=0.0

5、10mm基軸制、間隙配合)(10h)(10G0120.0130.0010.0???（3）Φ30Xmax=0.019mmYmax=0.015mm基軸制、過渡配合)(6h)(7K0013.0006.0015.0???（4）Φ140Ymax=0.126mmYmin=0mm基孔制、過盈配合)(8r)(8H126.0063.0063.00???第2題37.Δl=(a黃銅a玻璃)Δt=(19.51068106)(2050)=0.048mm25025

6、0查表Φ500.039(0.050)0.048=0.137mm，0(0.025)0.048=0.073mm)(7f)(8H025.0050.0039.00???∵0.137＞0.075mm∴原設(shè)計Φ50H8f7配合不合適。重選為：0.0750.048=0.027mm0.0090.048=0.039mm裝配時的間隙量應(yīng)為0.039～0.027mm之間∴選Φ50驗算后滿足要求。)(6n)(8H033.0017.0039.00???8.Δl=

7、[22(15020)12(10020)]106=0.181mm0.040.181=0.221mm2950.0970.181=0.278mm∴裝配間隙應(yīng)為0.221～0.278mmTf=|XmaxXmax|=|0.2780.221|=0.057mmTf=ThTs∴查表選孔為7級，軸為6級，基孔制H7，根據(jù)Xmin查表選軸（活塞）為b6選Φ95。驗算后基本滿足要求。)(6b)(7H220.0242.0035.00???第三章第三章測量技術(shù)基

8、礎(chǔ)測量技術(shù)基礎(chǔ)1.29.875－1.005－1.37－7.5=20用4塊量塊組合；48.98－1.48－7.5=40用3塊量塊組合；40.79－1.29－9.5=30用3塊量塊組合；10.56－1.06=9.5用2塊量塊組合。2.20－0.002=19.998mm3.調(diào)零誤差0.0005mm，修正值0.0005mm，塞規(guī)實際尺寸200.006－0.0005=20.0055㎜。4.=0.00005；=0.000033；δr2δr1，第二種

9、測量方法精度高。20001.01r??30001.02r??5.=30.741mm，=1.464μmδlim=3σ=4.392mL14301151N1i2i????????6.L=20.0005mm=0.5mL=L3=20.00150.0015mm41L??L?7.L=L1L2L3=201.0051.485=22.485mm23Llim2322Llim221Llim21LlimLL2LLLL???????????????????????