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1、13春学期《机械制造装备设计》在线作业NortheasternUniversity,14spring,13autumn,13springsemester,machineryNortheasternUniversity,14spring,13autumnEast,13springsemester,mechanicalmanufacturingequipmentdesign,onlinehomeworkTotalscore:100testtime:-RadioexaminationAmultiple-choiceque
2、stionRadioexaminationRadioexaminationquestions(5questions,25points)1.M1432inMstandsfor()A.grinderB.millingmachineC.latheD.drillingmachineFullmarks:52.metalcuttingmachinetoolsaredividedintovehicles,milling,planing,boring,grindingandsoon,whichisinaccordancewith(
3、)toclassify.A.processmethodB.processrangeC.processstandardsD.tooltypeFullmarks:53.thefixtureinthefollowingfixtureisassembledbyasetofprefabricatedstandardcomponents:()A.universalfixtureB.specialfixtureC.modularfixtureD.travelfixtureE.adjustablefixtureFullmarks:
4、54.thefollowingrapidprototypingmethodsthatcanbemadeofmetalmaterialsare:()A.SLAB.SLSC.FDMD.3DprintE.LOMFullmarks:55.,accordingtotheworkingprincipleofindustrialrobots,itusuallyconsistsof(),driveunits,controlmechanismsandotherthreepartsA.operatingmachineB.process
5、ingequipmentC.sensorD.servomotorFullmarks:5NortheasternUniversity,14spring,13autumnEast,13springsemester,mechanicalmanufacturingequipmentdesign,onlinehomeworkTotalscore:100testtime:-RadioexaminationAmultiple-choicequestionRadioexamination,(atotalof5multiple-ch
6、oicequestions,atotalof25points.)1.inthefollowingscrewsupportway,thescrewrodheatingelongationwillnotaffectthetransmissionaccuracyis:()A.singleendsupportOneendoftheB.isfixedatoneendC.endsarefixedD.multibearingfixedatbothendsFullmarks:5Theaccuracyofthe2.open-loop
7、systemismainlyguaranteedby()A.CNCsystemB.steppingmotorC.measuringsystemD.machinetoolbody,mechanism,accuracyFullmarks:53.comparedwiththeordinarymachinetools,CNCmachinetoolshave()characteristics.A.mechanicalstructureiscomplexB.highaccuracyC.accuracyisgoodD.isexp
8、ensiveFullmarks:54.TH5650is().A.horizontalboringmachineB.verticalmillingmachineC.numberofassignments,theanswerdidnotupload,firstforeveryonetoreviewtheuse,andifyouneedtoanswerthespe
