先进制造技术柔性制造.docx
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先进制造技术柔性制造.docx
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先进制造技术柔性制造
AdvancedManufacturingTechnology
先进制造技术
姓名:
韩冲
学号:
3092101440
班级:
机械设计制造及其自动化2094班
授课教师:
王雷老师
2012年5月
FlexibleManufacturing
Author:
HanChong
Abstract:
Inmanufacturingtherehavealwaysbeentrade-offsbetweenproductionratesandflexible.Atoneendofthespectrumaretransferlinescapableofhighproductionrates,butlowflexible.AttheotherendofthespectrumareindependentCNCmachinesthatoffermaximumflexible,butarecapableonlyoflowproductionrates.flexiblemanufacturingfallsinthemiddleofthecontinuum.Therehasalwaysbeenneedinmanufacturingforasystemthatcouldproducehighervolumeandproductionrunsthancouldindependentmachines,whilestillmaintainingflexibility.
Keywords:
flexiblemanufacturing,trade-offs
One.Introduction:
Withthedevelopmentofscienceandtechnology,humansocietyontheproduct'sfeaturesandqualityisgettinghigherandhigher,productreplacementcyclesaregettingshorter,thecomplexityoftheproductsalsowillbeincreased,thetraditionalmassproductionhasbeenchallenged.ThischallengeisnotonlyformedathreattoSME,butalsoplaguedbylargeandmedium-sizedstate-ownedenterprises.Because,inthewayofmassproduction,flexibilityandproductivityaremutuallycontradictory.Asweallknow,onlyasinglespecies,largequantities,device-specific,processstability,highefficiency,inordertoconstitutetheeconomiesofscale;thecontrary,themorevariety,smallbatchproduction,equipment,speciallow,frequentadjustmentsintheprocessedformfixtures,theprocessisstableandthedifficultyincreases,theproductionefficiencyisboundtobeaffected.Inordertoimprovetheflexibilityandproductivityofthemanufacturingindustry,underthepremiseofensuringproductquality,shortenproductioncycles,reduceproductcost,theendofthesmallandmedium-volumeproductiontocompetewithmassproduction,flexibleautomationsystemshavecomeintobeing.
SincetheMassachusettsInstituteofTechnologyin1954thefirstdigitalcontrolmillingmachinewasborn,intheearly1970s,flexibleautomationintotheproductionofpracticalstage.Fordecades,theprogressivedevelopmentoftheapplicationfromasingleCNCmachinetoolstothemachiningcenters,flexiblemanufacturingcells,flexiblemanufacturingsystemsandcomputerintegratedmanufacturingsystems,flexibleautomationhasbeendevelopingrapidly.
Two.Theconceptofflexiblemanufacturingsystems
Theflexiblemanufacturingsystemiscomposedofaunifiedcontrolsystem,materialhandlingsystemandasetofdigitalcontrolprocessingequipment,abletoadapttoautomatedmachinerymanufacturingsystemsprocessingobjecttransformations,theEnglishabbreviationfortheFMS.TheFMSprocessisbasedongrouptechnology,itisdeterminedinaccordancewiththeprocessingobjectofthegroupprocesstoselectcompatibleCNCmachiningequipmentandartifacts,toolsandothermaterialsstorageandtransportationsystems,andcontrolbythecomputer.Itcanautomaticallyadjustandtoachieveefficientproductionofavarietyofworkpiecesinacertainrangeofmassandcanchangeinatimelymannertomeetmarketdemand.FMSbothmanufacturingandpartofthetwofunctionsofproductionmanagement,sotheycanimproveproductionefficiency.FMSprocessrangeisexpandedtoincludetheblankmanufacturing,machining,assemblyandqualityinspection.
Flexiblemanufacturingsystemisatechnologycomplex,highlyautomatedsystem,itwillmicroelectronics,computerandsystemsengineeringandothertechnicalorganicallycombinetheidealandcompletesolutiontothemachinerycontradictionbetweenthehighlyautomatedandflexible.Ithashighequipmentutilization,productioncapacityisrelativelystable,highproductquality,flexibleoperationandproductsoftheresilienceoftheadvantages.
Three.Thepartofflexiblemanufacturingsystems
Formachinerymanufacturingflexiblemanufacturingsystem,itsbasiccomponentparts:
(1)Automaticprocessingsystem.Processingsystems,grouptechnologyDimensions(shapedoesnothaveexactlythesame),theweightisbroadlysimilar,thesamematerialandprocesspartsareconcentratedinoneorseveralCNCmachinetoolsorspecialmachinetoolsandotherequipmentprocessingsystems.
(2)Logisticssystems.Logisticssystem,thatconstituteavarietyoftransportdevices,suchasconveyors,trackaturntableandmechanicalhandstocompletetheworkpiece,tool,supplyanddeliverysystem,itisthemaincomponentsofflexiblemanufacturingsystems.
(3)Informationsystems.Informationsystemtocollectallkindsofinformationrequiredintheprocessingandtransportation,processing,feedback,andthroughthecomputerorothercontroldevices(hydraulic,pneumaticdevices,etc.),toimplementahierarchicalcontrolsystemformachinetoolsortra
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