1.點(diǎn)的位置度：點(diǎn)的位置度主要是必須注意Φt, sΦt

2、軸線的位置度：此類(lèi)的位置公差一般是相對(duì)于基準(zhǔn)給定互相垂直的兩個(gè)方向。GB中此類(lèi)一般用同軸度來(lái)標(biāo)注。

3.面的位置度

面的位置度：面的位置度公差帶視距離為公差值且以面的理想位置為中心對(duì)稱(chēng)配置的兩平行平面之間的區(qū)域。一般來(lái)說(shuō)，面的理想位置是由三基面體系的理論正確尺寸確定的。如圖所示兩平行平面的位置度要求（我國(guó)GB中一般用對(duì)稱(chēng)度表示此類(lèi)）

找正方法：

1.以圓柱 A 找正第 1 軸，并將軸心線置原點(diǎn)；

MODE/MAN DID(D2L40)=DEVICE/STOR,'D2L40' OPEN/DID(D2L40),SNS S(A0B0)=SNSDEF/PROBE,INDEX,POL,0.0,0.0,0.0000,0.0000,1.0000,189.6500,2.0000 SNSLCT/SA(A0B0) SNSET/RETRCT,2.0000 SNSET/APPRCH,2.0000 GEOALG/CYLNDR,LSTSQR F(圓柱1)=FEAT/CYLNDR,INNER,CART,0,0,-14.2495,0,0,1.00000000,30.0000,13.6853 MEAS/CYLNDR,F(圓柱1),8 PTMEAS/CART,-0.8267,14.9772,-12.8549,0.05511519,-0.99848000,0 PTMEAS/CART,7.4887,-12.9969,-12.0727,-0.49924895,0.86645859,0 PTMEAS/CART,-10.8588,-10.3483,-13.2402,0.72391695,0.68988713,0 PTMEAS/CART,-10.9993,10.1988,-14.2495,0.73328462,-0.67992181,0 PTMEAS/CART,-12.5921,8.1511,-2.5454,0.83947087,-0.54340470,0 PTMEAS/CART,11.8374,9.2128,-1.0694,-0.78915920,-0.61418870,0 PTMEAS/CART,6.5358,-13.5012,-2.0111,-0.43572139,0.90008159,0 PTMEAS/CART,-14.1665,-4.9305,-0.5643,0.94443403,0.32870104,0 ENDMES DATDEF/F(圓柱1),DAT(A_圓柱1) D(坐標(biāo)系1_S)=DATSET/DAT(A_圓柱1),ZDIR D(坐標(biāo)系1_T)=TRANS/XORIG,FA(圓柱1),YORIG,FA(圓柱1) SAVE/DA(坐標(biāo)系1)

2.以圓柱 A 和鍵槽 B 連線建第 2 軸；

3.測(cè)量 45度和各孔相對(duì)基準(zhǔn) A、B 的位置度。

結(jié)論：不允許通過(guò)坐標(biāo)系的平移或旋轉(zhuǎn)對(duì)數(shù)據(jù)進(jìn)行再處理。

$$ NET_DMIS_20160720 $$ MADE IN DE 2023-2-9 12:59:58 INCLUD/DMIS,'NET_DMIS_DEFINES.DMI' INCLUD/DMIS,'VARDEFINE' DMESW/COMAND,'PROBE_VAL/INIT' UNITS/MM,ANGDEC D(MACHINE)=DATSET/MCS DMESW/COMAND,'COORDSYS/ALIGN' WKPLAN/XYPLAN PRCOMP/ON PRCOMP/ON FEDRAT/POSVEL,MMPS,300.0000 ACLRAT/POSACL,MMPSS,100.0000 FEDRAT/MESVEL,MMPS,20.0000 ACLRAT/MESACL,MMPSS,100.0000 SNSET/RETRCT,1.0000 SNSET/SEARCH,5.0000 SNSET/APPRCH,1.0000 DMESW/COMAND,'SNSET/MANRETRCT,2' DMESW/COMAND,'REPORT/CLEAR' MODE/MAN DID(D2L40)=DEVICE/STOR,'D2L40' OPEN/DID(D2L40),SNS S(A0B0)=SNSDEF/PROBE,INDEX,POL,0.0,0.0,0.0000,0.0000,1.0000,189.6500,2.0000 SNSLCT/SA(A0B0) SNSET/RETRCT,2.0000 SNSET/APPRCH,2.0000 GEOALG/CYLNDR,LSTSQR F(圓柱1)=FEAT/CYLNDR,INNER,CART,0,0,-14.2495,0,0,1.00000000,30.0000,13.6853 MEAS/CYLNDR,F(圓柱1),8 PTMEAS/CART,-0.8267,14.9772,-12.8549,0.05511519,-0.99848000,0 PTMEAS/CART,7.4887,-12.9969,-12.0727,-0.49924895,0.86645859,0 PTMEAS/CART,-10.8588,-10.3483,-13.2402,0.72391695,0.68988713,0 PTMEAS/CART,-10.9993,10.1988,-14.2495,0.73328462,-0.67992181,0 PTMEAS/CART,-12.5921,8.1511,-2.5454,0.83947087,-0.54340470,0 PTMEAS/CART,11.8374,9.2128,-1.0694,-0.78915920,-0.61418870,0 PTMEAS/CART,6.5358,-13.5012,-2.0111,-0.43572139,0.90008159,0 PTMEAS/CART,-14.1665,-4.9305,-0.5643,0.94443403,0.32870104,0 ENDMES DATDEF/F(圓柱1),DAT(A_圓柱1) D(坐標(biāo)系1_S)=DATSET/DAT(A_圓柱1),ZDIR D(坐標(biāo)系1_T)=TRANS/XORIG,FA(圓柱1),YORIG,FA(圓柱1) SAVE/DA(坐標(biāo)系1) F(點(diǎn)1)=FEAT/POINT,CART,-51.7312,15.0000,-3.8853,0,-1.00000000,0 MEAS/POINT,COMP,DME,F(點(diǎn)1),1 PTMEAS/CART,-51.7312,15.0000,-3.8853,0,-1.00000000,0 ENDMES F(點(diǎn)2)=FEAT/POINT,CART,-51.1570,-15.0000,-2.5279,0,1.00000000,0 MEAS/POINT,COMP,DME,F(點(diǎn)2),1 PTMEAS/CART,-51.1570,-15.0000,-2.5279,0,1.00000000,0 ENDMES F(點(diǎn)3)=FEAT/POINT,CART,-51.4441,0,-3.2066,0,0,1.00000000 CONST/POINT,F(點(diǎn)3),MIDPT,FA(點(diǎn)1),FA(點(diǎn)2) DMESW/COMAND,'CONST/SET_PROJ_VEC,FA(XY),1' F(直線1)=FEAT/LINE,UNBND,CART,-51.4441,0,-8.7280,1.00000000,0,0,0,1.00000000,0 CONST/LINE,F(直線1),BF,FA(點(diǎn)3),FA(圓柱1) D(坐標(biāo)系2_R)=ROTATE/ZAXIS,FA(直線1),XDIR SAVE/DA(坐標(biāo)系2) GEOALG/PLANE,LSTSQR F(平面1)=FEAT/PLANE,CART,6.9182,-6.4224,0,0,0,1.00000000 MEAS/PLANE,F(平面1),4 PTMEAS/CART,-21.1687,41.5770,0,0,0,1.00000000 PTMEAS/CART,-25.4009,-44.1473,0,0,0,1.00000000 PTMEAS/CART,31.6219,-47.2619,0,0,0,1.00000000 PTMEAS/CART,42.6205,24.1427,0,0,0,1.00000000 ENDMES D(坐標(biāo)系3_T)=TRANS/ZORIG,FA(平面1) DMESW/COMAND,'COORDSYS/CAD=PART' SAVE/DA(坐標(biāo)系3) MODE/AUTO,PROG,MAN DMESW/COMAND,'CLEARP/ZDIR,10.0000,ZDIR,10.0000,ON' F(圓1)=FEAT/CIRCLE,INNER,CART,-26.8701,26.8701,0,0,0,1.00000000,10.0000 CALL/EXTERN,DMIS,M(NETDMIS_AUTO_CIRCLE_1007),AUTOFIGURE,F(圓1),CIRCLE,INNER,CART,LSTSQR,-26.8701,26.8701,$ 0,0,0,1.00000000,10.0000,-1.00000000,0,0,4,-2.0000,0,0,0,0,360.0000,TOUCH,CIRCLE,0.3000,0,FALSE,FALSE,$ FALSE,10.0000,"CUR",TRUE,FALSE,0,FA(VECBLD),10.0000,2.5000,3,XYPLAN,"",'7,0,0,0,0,3.0000,0,10','0,1,0,$ 5.0000',"EXT3",ENDCAL F(圓2)=FEAT/CIRCLE,INNER,CART,-26.8701,-26.8701,0,0,0,1.00000000,10.0000 CALL/EXTERN,DMIS,M(NETDMIS_AUTO_CIRCLE_1007),AUTOFIGURE,F(圓2),CIRCLE,INNER,CART,LSTSQR,-26.8701,-26.8701,$ 0,0,0,1.00000000,10.0000,-1.00000000,0,0,4,-2.0000,0,0,0,0,360.0000,TOUCH,CIRCLE,0.3000,0,FALSE,FALSE,$ FALSE,10.0000,"CUR",TRUE,FALSE,0,FA(VECBLD),10.0000,2.5000,3,XYPLAN,"",'7,0,0,0,0,3.0000,0,10','0,1,0,$ 5.0000',"EXT3",ENDCAL F(圓3)=FEAT/CIRCLE,INNER,CART,26.8701,-26.8701,0,0,0,1.00000000,10.0000 CALL/EXTERN,DMIS,M(NETDMIS_AUTO_CIRCLE_1007),AUTOFIGURE,F(圓3),CIRCLE,INNER,CART,LSTSQR,26.8701,-26.8701,$ 0,0,0,1.00000000,10.0000,-1.00000000,0,0,4,-2.0000,0,0,0,0,360.0000,TOUCH,CIRCLE,0.3000,0,FALSE,FALSE,$ FALSE,10.0000,"CUR",TRUE,FALSE,0,FA(VECBLD),10.0000,2.5000,3,XYPLAN,"",'7,0,0,0,0,3.0000,0,10','0,1,0,$ 5.0000',"EXT3",ENDCAL F(圓4)=FEAT/CIRCLE,INNER,CART,26.8701,26.8701,0,0,0,1.00000000,10.0000 CALL/EXTERN,DMIS,M(NETDMIS_AUTO_CIRCLE_1007),AUTOFIGURE,F(圓4),CIRCLE,INNER,CART,LSTSQR,26.8701,26.8701,$ 0,0,0,1.00000000,10.0000,-1.00000000,0,0,4,-2.0000,0,0,0,0,360.0000,TOUCH,CIRCLE,0.3000,0,FALSE,FALSE,$ FALSE,10.0000,"CUR",TRUE,FALSE,0,FA(VECBLD),10.0000,2.5000,3,XYPLAN,"",'7,0,0,0,0,3.0000,0,10','0,1,0,$ 5.0000',"EXT3",ENDCAL T(位置度1-RN)=TOL/CIRLTY,0.0200 T(位置度1-DF)=TOL/DIAM,-0.0200,0.0200 T(位置度1)=TOL/POS,2D,0.0500,RFS DMESW/COMAND,'TOL-NOM/位置度1,COORD/0,POLTYPE/0,FEAT/圓1,WKPLAN/XYPLAN,XAXIS/-26.8701,YAXIS/26.8701,ZAXIS/-2.0000,$ PR/38.0001,PA/135.0000,DIAM/10.0000,XOUTPUT/TRUE,YOUTPUT/TRUE,ZOUTPUT/FALSE,PROUTPUT/FALSE,PAOUTPUT/FALSE,$ DOUTPUT/TRUE,FOUTPUT/FALSE' DMESW/COMAND,'OUTPUT/UNIT,DIMENSION/MM' OUTPUT/FA(圓1),TA(位置度1) T(位置度2-RN)=TOL/CIRLTY,0.0200 T(位置度2-DF)=TOL/DIAM,-0.0200,0.0200 T(位置度2)=TOL/POS,2D,0.0500,RFS DMESW/COMAND,'TOL-NOM/位置度2,COORD/0,POLTYPE/0,FEAT/圓2,WKPLAN/XYPLAN,XAXIS/-26.8701,YAXIS/-26.8701,ZAXIS/-2.0000,$ PR/38.0001,PA/225.0000,DIAM/10.0000,XOUTPUT/TRUE,YOUTPUT/TRUE,ZOUTPUT/FALSE,PROUTPUT/FALSE,PAOUTPUT/FALSE,$ DOUTPUT/TRUE,FOUTPUT/FALSE' DMESW/COMAND,'OUTPUT/UNIT,DIMENSION/MM' OUTPUT/FA(圓2),TA(位置度2) T(位置度3-RN)=TOL/CIRLTY,0.0200 T(位置度3-DF)=TOL/DIAM,-0.0200,0.0200 T(位置度3)=TOL/POS,2D,0.0500,RFS DMESW/COMAND,'TOL-NOM/位置度3,COORD/0,POLTYPE/0,FEAT/圓3,WKPLAN/XYPLAN,XAXIS/26.8701,YAXIS/-26.8701,ZAXIS/-2.0000,$ PR/38.0001,PA/315.0000,DIAM/10.0000,XOUTPUT/TRUE,YOUTPUT/TRUE,ZOUTPUT/FALSE,PROUTPUT/FALSE,PAOUTPUT/FALSE,$ DOUTPUT/TRUE,FOUTPUT/FALSE' DMESW/COMAND,'OUTPUT/UNIT,DIMENSION/MM' OUTPUT/FA(圓3),TA(位置度3) T(位置度4-RN)=TOL/CIRLTY,0.0200 T(位置度4-DF)=TOL/DIAM,-0.0200,0.0200 T(位置度4)=TOL/POS,2D,0.0500,RFS DMESW/COMAND,'TOL-NOM/位置度4,COORD/0,POLTYPE/0,FEAT/圓4,WKPLAN/XYPLAN,XAXIS/26.8701,YAXIS/26.8701,ZAXIS/-2.0000,$ PR/38.0001,PA/45.0000,DIAM/10.0000,XOUTPUT/TRUE,YOUTPUT/TRUE,ZOUTPUT/FALSE,PROUTPUT/FALSE,PAOUTPUT/FALSE,$ DOUTPUT/TRUE,FOUTPUT/FALSE' DMESW/COMAND,'OUTPUT/UNIT,DIMENSION/MM' OUTPUT/FA(圓4),TA(位置度4)

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