TheContentandClassArrangementofVocationalskillstraining

FortheMediumSkilledofMachiningCenter

Vocationalfunction

Jobcontent

Skillrequirements

Relatedknowledge

Classperiod

I.Processingpreparation

I.Interprettheimagesandgraphics

Canreadmedium-complexitypartschart.(e.g.cam,box,polyhedron)

candrawagroove,step,inclinedplanesimplepartschart

canreadsimpleassemblydrawing,suchasdividingheadtailstock,colletsleeve,indexablemillingcutterstructure,

Expressionofcomplexparts

DrawingofSimplepartschart

ThedrawingofThree-viewdrawingofparts\partialview\pro

5

II.

Formulationofprocessingtechnology

canreadthefilesofcomplexpartsofNumericalControl(NC)machiningtechnology

cancompilethefilesof

NCmachiningtechnologysuchasliner\arcsurface\holeseries

formulationmethodofthefilesofNumericalControl(NC)machiningtechnology

theknowledgeofNumericalControl (NC) machining

technology

20

III.Partspositioningandclamping

canusethecommonfixturessuchasplaten\jawvice\plainviceinthemachiningcenter

canselectthepositioningreferenceandfindthepositiveparts

theuseofcommonfixtureinmachiningcenter

theprinciplesandmethodsofpositioningandclamping

methodsofpartsalignment

5

V.Cuttingtoolpreparation

Canchoose,install,andadjustthecommonfixturesofmachiningcenteraccordingtoNCprocessingcraft.

Canchoosethegeometryparametersofcuttingtoolsandcuttingtools,anddeterminethecuttingparametersandcuttingparametersneededforNCmachiningaccordingtothemachiningcenterfeature,partsmaterial,machiningaccuracyandworkingefficiency

CanUsethetoolpresetterandmeasuretheradiusandlengthofmeasuringtoolsinmachine

Canchoose\install\usethehandle

Cangrindthecommonfixtures

metalcuttingandtoolwear

theknowledgethetype,structureandfeatureofthecommonfixturesofmachiningcenter

therequirementsoftoolsonmachiningcenter,partsmaterial,machiningaccuracyandworkingefficiency

theuseoftoolpresetter

oflengthcompensation,radiuscompensationandcuttingtoolparameters

theclassificationanduseofhandles

methodsofcuttingtoolgrinding

10

II.Numericalcontrolprogramming

I.Manualprogramming

.CanprogramtheprocessingprogramsuchasDrilling,expansion,hinge,boring,etc.

Programmingplanemillingprogram

.Canprogramtheprocessingprogram Including linear

interpolation,circularinterpolationandtwo-dimensionalcontour

knowledgeofnumericalcontrolprogramming

theprincipleoflinearinterpolation and circular

interpolation

calculationmethodofcoordinatepoints

thefunctionandcalculationmethodofcuttercompensation

30

II.

Computeraidedprogramming(CAP)

CanuseCAD/CAMsoftwaretocompletethesimpleplaneoutlineofthemillingprogram

themethodofCAD/CAMsoftware

thedrawingofplanarcontourandgeneratingmethodofprocesscode

20

III.

MachiningCentreoperation

I.operationpanel

.canstartandstopthemachinetoolsaccordingtotheoperationprocedure

.Canusethecommonfunctions(suchasreturntozero,manual,MDI,andsoon)canbeusedbytheoperationpanel.)

operationmanualofmachiningcenter

theuseofoperationpanelofmachiningcenter

20

II.Programinputandedit

.Caninputprocessingprogramthroughvariousmeans(suchasDNC,network).

.caninputandeditthemachiningprogramthroughoperationpanel

theinputmethodofNCmachiningprogram

theeditmethodofNCmachiningprogram

5

III.toolsetting

1.canusetoolsettinganddeterminetherelativecoordinates2.cansettoolparameters

themethodoftoolsetting

theknowledgeofcoordinatesystem

theinputmethodoftoolbiascompensation,radiuscompensationandtoolparameters

15

V.programdebuggingandoperation

Canverifytheprogram,singlestep,runningandcompletetheparttest

Canuseexchangedesk

themethodofprogramdebug

theexchangemethodofdesk

10

IV.

managementofcuttingtools

canusetheautomatictoolchanger

cansetupandselecttoolsinthetoolpool

caninputparametersthroughtheoperationpanel

theknowledgeofthetoolpool

theuseofthetoolpool

thesettingoftoolinformationandtheselectionoftools

5

V. Parts

processing

I. plane

processing

canusetheNCmachiningprogramtocarryoutthemillingprocesssuchasplane,verticalplane,inclinedplane,stairface,etc.andmeetthefollowingrequirements:

.DimensionstolerancelevelsofIT7grade

.ThetolerancelevelofformisIT8grade

.ThesurfaceroughnessreachesRa3.2M

Basicknowledgeofplanarmilling

Cuttingfeaturesofcuttingtools

50

II.Cavityprocessing

canusetheNCmachiningprogrtocarryoutthemillingprocesssuchasplanarcontourcomposestraightineandarcandmeetthefollowingrequirements:

.DimensionstoleranclevelsfIT8grade

.ThetoleranclevelofformisIT8grade

.ThesurfaceroughnessreachesRa3.2M

amiBasicknowledgeofplanarmilling

d2.ofCuttingfeaturesofcutting

:tools

50

III.Curvedsurfacemachining

CanusetheNCmachiningprogrammillingconicalsurface.cylindricalsurfaceandothersurface,andmeettherequiren1).DimensionstoleranclevelsfIT8grade

.ThetoleranclevelofformisIT8grade

.ThesurfaceroughnessreachesRa3.2M

l.thebasicknowledgeofsurfacemilling

si.mplEttingfeaturesofballheadecnttstingtools

30

V.

Machiningofhole

canuseNCmachiningprogramfmachiningofholeandmeetthefollowingrequirements:

.Dimensionstoleranclevels)fIT7grade

.ThetoleranclevelofformisIT8grade

.ThesurfaceroughnessreachesRa3.2M

0TheprocessingiethodofdrillinreamingdrilltapHempflowers,boringcutterandreamer

50

IV. slot

processing

canuseNCmachiningprogramformachiningofgrooveandkeywayandmeetthefollowingrequirements:

.DimensionstolerancelevelsofIT8grade

.ThetolerancelevelofformisIT8grade

.ThesurfaceroughnessreachesRa3.2M

Theprocessingmethodofgrooveandkeyway

20

VI.

accuracytest

Canusecommonmeasuringtoolsforaccuracytestofparts

Commonuseofmeasuringtools

accuracytestandmeasuringmethodofparts

5

IV.maintenanceandaccuracyinspectionofmachiningcenter

I. Daily

maintenance of

machiningcenter

C