旋盖机的总体结构设计毕业设计

PAGEPAGE1关键词:Reportthelubricantsmallpackagingproductionlineandcappingmachine,accordingtosomeofcappingmachinesmakeimprovementdesignflaws.Determinethecappingmachinedesignparameters,andintroducesthemechanismpartscappingmaterialselection,andanalysestheargument.Ontheoverallstructureofmachinedesignmakesabriefintroductiontospin,andemphasizesthestructuredesignforcovering.Introducesthecalculationofmomentcappingworkingprincipleandworkingprocessandstructuraldesign.ControlsystemadoptsPLCautomaticcontrolandcappingmachinesworkingprocessaccordingtowritethesemi-automaticcontrolprocedures.Keywords：cappingmachine；Designparameters；Component,Structure；Calculation；Thecontrolsystem毕业论文（设计）作者签名 日期 毕业论文（设计）作者签名 指导教师签名 日期 日期 设计（论文）封面（按教务处制定的标准封面格式制作中文摘要（300字左右目次页（附件不统一编入论文主体部分：引言（或绪论附录（对论文支持必要时1.2万字。附件包括：任务书、开题报告、外文译文、译文原文（复印件3）A450页以上的双面打印设计（论文附件：按照任务书、开题报告、外文译文、译文原文（复印件）摘 第1章绪 、润滑油小包装生产线概 、本次论文的设计任务、设计思想及设计特 、设计任 、设计思 、设计特 、旋盖机现况及所设计的旋盖机在整个生产线中的作 、旋盖机的现 、所设计的旋盖机在整个生产线中的作 、小 第2章重要参数的确定与论 、重要参数的确 、重要参数的论 、产品设计要求 、参数的论 、小 第3章构件材料的选择及论 、旋盖机的组 、旋盖电 、旋盖电机选型 、无刷直流电机的运行原 、无刷直流电机的结 、无刷直流电机的基本工作原 、气 、气缸的工作原理、分类及安装形 、气缸的技术参 、气缸的选型及计算 、电源控制按钮 、传动系 、带传动种类及其选 、带传动效 、带传动特 、使用和维 、机座设计要素 、机座材 、时效处 、结构设 、小 第4章旋盖机原理及结构设 、旋盖机的选择 、旋盖机原理 、旋盖机的结构设计 第5章强度计 、旋盖机设计计算 、小 第6章控制系统设 、控制要求 、控制系统的选 、为何采用PLC控 、控制继电器存在的缺 、固体继电器的缺 、可编程序控制器的优势、特点及功 、PLC与继电器控制两种控制方法的不同之处（1）控制方式 、PLC如何选 、输入输出（I/O）点数的估 、机型的选 、控制系统的硬件构成 、旋盖机控制系统设 、旋盖机PLC控制接线图 、旋盖机步进梯形图 、控制过程分析 、小 结束 致 参考文 附录 11章绪论降低了成本，深受国内许多中小厂家喜爱。本润滑油小包装生产线由两台灌装机（46/分钟、两台旋盖机、一台热封要、一台喷码机、一台包装机（56、码垛机一12观察旋盖机的工作流程，分析其工作原理并绘制控制系统图（电路原理图。对旋150～200/min300～500/min，并将洗瓶、罐装和旋盖组合成整机。这不仅使12章重要参数的确定与论证电源：380V50Hz电动机功率外形尺寸：700×500×124312222、适用盖（高度、直径）盖直径＜25～50mm，35mm。343章构件材料的选择及论证33Y801-4,额0.55KW，1390r/min,2.2Nm，17KG。它是由跟随着电动机转子转动的带缺甲的导磁圆盘和固定不动的三只差动变压器变器的控制电路输出控制信号。这种方法结构简单、检测可靠。333.2V1、V2、V3VP1、VP2、VP3120假定此时光电器件VP1被照射，从而使功率管V1呈导通状态，电流注入绕组,假设该绕组电流同转子磁极作用后所产生的转矩使转子的磁极按照顺时针方向120VP1VP2V1V2流出而流入绕组，使得转子磁极继续按顺时针方向旋转，并带着遮光板同时沿顺V2V3，于是驱动转12036012 4569873.31、3－缓冲柱 2－活 4－缸 5－导向 6－防尘圈7－前端 8－气 9－传感10－活塞杆11－耐磨 12－密封 13－后端 14－缓冲节流33固定式气 气缸安装在机体上固定不动，有脚座式和法兰式轴销式气 缸体围绕固定轴可作一定角度的摆动，有U形钩式和耳轴式回转式气缸缸体固定在机床主轴上，可随机床主轴作高速旋转运动。这种气嵌入式气 气缸缸筒直接制作在夹具体内气缸的输出力气缸理论输出力的设计计算与液压缸类似，可参见液压缸的设理论推力（活塞杆伸出 （13-理论拉力（活塞杆缩回 （13- （N；（m2；（Pa气缸的效率η （13-

（13-负载率β从对气缸运行特性的研究可知，要精确确定气缸的实际输出力是困β＝气缸的实际负载气缸的理论输出力

，则由定义就能确对于阻性负载，如气缸用作气动夹具，负载不产生惯性力，一般选取负载率β 当气缸低速运动，v＜100mm/s时； 当气缸中速运动，v＝100～500mm/s时； 当气缸高速运动，v＞500mm/s时。气缸耗气量气缸的耗气量是活塞每分钟移动的容积，称这个容积为压缩空气气缸的特性气缸的特性分为静态特性和动态特性。气缸的静态特性是指与缸1233F，再由气缸平均，初步选定气缸工作压0.4MPa～0.6Pac95k，cp95sLA158带灯按钮、蘑菇钮、旋钮、钥匙钮、急停钮，触点有自洁功能，触头材质银镍合金,在IP65尘性能。安装方便,牢固,外形美观，品种齐全，可以为工业自动化、机床,医疗器械、3-13-LA158-转噪声低，但传动比不准确（2%以下；同步带传动可保证传动同步，但对载、带传动种类及其选择基本分类平型带传动3三角带传动三角带通常是数根并用，带轮上有相应数目的型槽。用三角带传动时,带与轮接触良好,(7的场合,在垂直和倾斜的传动中也能较好工作。此外，因三角带数根并用，其中一根破坏也不致发生事故。同步齿形带传动33pmpm＝p/π。中国的4010，98％；、带传动效率滑动损失摩擦型带传动工作时，由于带轮两边的拉力差及其相应的变形差形内摩擦损失带在运行中的反复伸缩，在带轮上的挠曲会使带体内部产生摩V轴承摩擦损失轴承受带拉力的作用，是引起功率损失的重要因素之一。综、带传动特点v=5～25m/s，i≤7、使用和维护（1）（2）VV常用的灰口铸铁有两种：HT200（p>52）的导轨，或弯曲应力较大的（σ≥3002）床身等；HT150钢20%~50%；334523.4Ic3-20.833

3.5隔板（左）与加强筋（右413(A,B)都接通时，定位气6（A,B）61、输送带；2、定位气缸；3、光电传感器；44.1旋盖机结构简图44旋盖机是饮料灌装过程中旋紧瓶盖的专用设备,工作时必须保证适宜的旋紧力矩。4.1DS03动器传递扭力矩实现瓶盖旋紧的旋盖头,能根据需要方便地设定、调整旋紧力矩的大小,4.153,6316（4.2。这些永磁体按1636343636434.2旋盖机旋盖头结构图555章强度计算型式采用磁体极性呈偶数交错排列的拉推式组合型磁路，实践经验表明，磁极数按12MVB2M m m

μ

1Kf/KrLm/Lg 式中，Vm——主动、被动磁力旋盘上全部永磁体的体积Vm2AmLmm3Lm——永磁体平均轴向高度，m;Lg——气隙长度，即主动、被动磁力旋盘间的轴向隔距，m；Br——永磁体剩磁KfKr0000⑴式表明，当此磁力耦合系统的尺寸（Vm、Am、Lm、Lg）一定时，传递力矩Pcos3φ3cos220 P(Kf/Kr)(Lm/Lg)对于小气隙磁路，忽略漏磁的影响（K

/

）K

/Kr14-216（极性交错排列）小磁体（进口铁氧体，Br＝0.43T，Am8.04104m2Lm=0.005m，Lg(间调整PKfKr)(LmLgLmLg2~1.2P0.7165，再代入式⑴可解得此磁力耦合传动器所能传递的最大力矩即瓶盖旋紧力矩工作可靠，设计值（即计算值）应比要求值略大（5%～10%。5-1LgcosφM55第6章控制系统设计1)2、为何采用PLC控制继电器存在的缺点如作条件下进行的,容易损坏.而且继电器的触点容易产生电弧,甚至会熔在一起产生误操作,引绝大多数控制继电器都是长期磨损和疲劳工起严重的后果.再者,对一个具体使用的装有上百个继电器的设备,其控制箱将是庞大而笨重的.在全负荷运载的情况下,大的继电器将产生大量的热及噪声,同时也消耗了大量的电能.并且继电器控制系统必须是手工接线、安装,如果有简单的改动,也需要花费大量时间及人力和物力去改制、安装和调试.今天继电器已应用到家庭及工业控制的各个领域.66导通后的管压降大，可控哇或双向控哇的正向降压，可达1~2V，大功率晶体管的饱和压降也在1~2可编程控制器以体积小功能强大所著称,它不但可以很容易地完成顺序逻辑、运动控制、定时控制、计数控制、数字运算、数据处理等功能,而且可以通过输入输出接口建立与各类生产机械数字量和模拟量的联系,从而实现生产过程的自动控制.特别是现在,由于信息、网络时代的到来,扩展了PLC更广泛地应用于众多行业。任一时刻的数据记录,通过打印可保存相关的生产数据,为今后的生产管理和工艺参数的分析带来便利。以往对于过程控制的模拟量均采用硬件电路构成的PID模拟调节器来实现开、闭环控制。而现在完全可以采用PLC控制系统,选用模拟量控制模块,关于时间继电器的用途,其功能由软件完成,系统的精度由位数决定,不受元件影响,因而可靠性更高,容易实现复杂的控制和先进的控制方法,可以同时控制多个控制回路和多个控制参数.例如生产过程中的温度、流量、压力、速度等。PLC(CNC)集成在一起,用以完成机床的运动位置控制,它的功能是接受输入装置输入的加工信息,经处理与计算,发出相应的脉冲给驱动装置,通过步进电机或伺服电机,使机床按件分段冲裁、滚削摸削等应用中。、PLCPLC66PLC(可编程控制器)与MC(MCPLC但人工业控制的角度来看，PLC又是一种通用机，只要选配对应的模块便可适用于各种MC就必须根据实际需要考虑抗干扰问题及硬件软件的设计，以适应设备控制的专门需要。所以说MC是通用的专用机。基于以上理解，便可以得出MC与PLCPLC抗干扰性能为MCPLC编程比MCPLC（MS，而（USPLC易于操作，人员培训时间短；而MCPLC易于维修，MC、PLC、输入输出（I/O）I/OFX2N8,8I/O6-16-1I/OBA66PLC6.1PLC图 旋盖机梯形66（如果机器本就处于原点位置可不进行复位操作。工人把套上瓶盖的瓶子放上输送带，此4.12(B)13(A,B)2(A)54（A,B）转动，然后升6（A,B6（A,BBA6.3图 系统控制过李斯龙.FX12[J].包装工程李斯龙.高速旋盖机传动系统的设计[J].轻工机械[M].上海市包装技术协会包装机械委员会，1987.[4]高德.包装机械设计[M].北京：化学工业出版社，2005.[7]尹宏业.PLC[M].航空工业出版社[8]俞国亮.PLC[M].清华大学出版社，2005（6）.[9]PLC[M].机械工业出版社，2005(11).[11]朱绍祥.可编程序控制器(PC)[M].上海交通大学出版社，1988[12]周定颐.电机与电力拖动[M].北京机械工业出版社[13]路林吉.可编程序控制器原理及应用[M].北京清华大学出版社，2002[14][M].，2004[15][M].，2003[16]章文浩.可编程控制器原理及实验[M].北京：国防工业出版社，2003.[17][M].北京：高等教育出版，2001[18]PLC[M].机械工业出版社[19]PLC[M].西安电子科技大学出版社，2006[20]张伟安，王建勤.全自动回转式旋盖机[J].轻工机械，2002（2）.NumericalcontrolDigitalcontrolmachineisuseddigitalcodeformsofinformation(instruction),controltoolaccordingtothegivenvelocityandworkingprocedures,automaticprocessingmachinetotrack,ncmachinetools.CNCmachinehasextensiveadaptability,objectschangedonlyneedtochangetheprograminstruction;inputProcessingperformancethanthegeneralautomaticmachine,highprecisionmachiningfactors,canbesuitableforprocessingandsmallbatch,highaccuracyandfrequentflow,shapeandcomplexworkpiece,andcanobtaingoodeconomicresults.Alongwiththedevelopmentofnumericalcontroltechnology,themachineadoptsCNCsystem,increasingvarietylathes,milling,boring,grinding,drilling,gearcuttingmachinetoolsandelectricsparkmachinetools,etc.Inaddition,canautomaticallychangeinoneofthemanyprocesscardprocessingcenter,turningcenters,etc.DevelopmentIn1948,theUnitedStatespasoncecompanyacceptentrustusairpropellerblades,airplaneoutlinemodelprocessingequipment.Duetothecomplexandvariedshapes,template,highprecisionmachiningequipmenttogeneral,andputforwardtheideaofcomputercontrolledmachinetools.In1949,thecompanyattheMassachusettsinstituteoftechnology(MIT)servolaboratory,CNC,andbegantostudyin1952successfullytrial-producedbylargeverticalcopythemillingmodificationofthreecoordinatesCNCmillingmachine,soonstartedproduction,in1957formallyputintouse.Itisintheprocessofdevelopmentofmanufacturingtechnology,marksanimportantbreakthroughinncmachiningera.Ncmachiningisthefoundationofmodernmanufacturetechnology,thisinventionformanufacturingindustry,hasepoch-makingmeaningandfar-reachinginfluence.Theworld'smajorindustrializedcountriesattachgreatimportancetothencmachiningtechnologyresearchanddevelopment.Whenusingthenumericalcontrolequipment,components,hugetubes,onlyexpensiveinaviationindustryminoritieswithspecialneedstofacepartsprocessingfactorsdepartment,In1959,madeatransistordevicesandprintedcircuitboards,ncequipmentintothesecondgeneration,smaller,costisdecreased;Since1960,relativelysimpleandeconomicpositioncontrolCNCdrillingmachine,andlinearcontrolCNCmillingmachine,therapiddevelopmentofCNCmachineinmechanicalmanufacturingdepartmentsobtaingradually.Chinastartedin1958,developedsuccessfullytrial-producedaCNCvalveofthenumericalcontrolsystemwithCNCmachine,1965startedmassproductionofCNCsystemwithtransistorthreecoordinatesncmillingmachine.In1965,thirdgenerationofintegratedcircuit,controldevices,smallsize,powerconsumption,andreliability,thepricedropsfurther,promotethencmachinetoolsandthedevelopmentofproduction.Attheendofthe1960s,successivelyappearedbycomputerdirectlycontroltoolmachinedirectnumericalcontrolsystem(hereinafterreferredtoasDNC),alsocalledthegroupcontrolsystem,Usingsmallcomputercontrolcomputernumericalcontrolsystem(hereinafterreferredtoasCNCcontrolunit),whichenteredintothecharacteristicsofsmallcomputersinthefirstgeneration.In1974,successfullydevelopedusingmicroprocessorandsemiconductorCunZhuQimicrocomputercontroldevices(hereinafterreferredtoasnewsunfocus),thisisthefifthCNCsystem.Fifth,comparedwiththethirdgenerationofnumericalcontrolequipment,functiondoubledinvolumeisreducedtotheoriginal1/20,lowerpricesfor3/4andreliabilityhavegreatlyimproved.Intheearly1980s,withthecomputersoftwareandhardwaretechnologydevelopment,theman-machinedialoguetoautomaticprogrammingofCNC.Thenumericalcontrolequipmentinstalledinminiaturization,candirectlyonthemachine,TheautomationofCNCmachine,automaticmonitoringandfurtherenhancethetoolbreakageandautomaticdetectionworkpieceetc.Function.InChina'sdevelopmentpresentThesecountriesineasternEurope,machinemanufacturingvarietiesgrowninChina,andlackofmachineindustrythroughtheseyearsofdevelopment,haslargescale,productefficience,CNCvarietiesfromhundredsofdevelopmenttonearly2,000species,theindustrydevelopmentofnewproducts,themarketneedtofillthedomesticblank.Ahighprecision,highspeed,highefficiency,amoreintelligent,coordinate,composite,abignorms,large-tonnage,largesizeofCNCmachinenewproductsmeetthenationalkeyusersneeds.Atpresent,China'smachineindustryisthroughthereadjustmentofindustrialstructure,productstructure,improvetheabilityofindependentinnovation,development,changefromtheinternationaladvancedmanufacturingtechnology,cultivateenterprisehighlevelsofindependentdevelopmentandinnovationability.Withprecise,efficientandflexible,complete,greendemandfordirection,toreform,reorganizationandtransformation,annexinginternationalbrandenterprisesandproducts,toimprovethedomesticmarketshare,expandingmachinemachinetoolproductdevelopmentspace.China's"big"machineindustryintheworld,"thevalueof"isnotcheapovercapacity,performanceisweak-lowlevel,productquality,performanceisthelackofthreelargeinternationalgroup,weakmarketcompetitiveness.By2010,ChinaonMarch25,machinetoolindustryassociation,deputysecretary-generalLiJingMingtothemedia,saidChinamachineindustryintheworldfinancialcrisisin2009underthebackgroundof","productionleapttooutshineothersintheworld.ButChinamachineindustryis"big"but"no",andtheadvancedlevelintheworldisstillabiggap.Then,the"bigChinesemachineindustry"and"don't"respectivelyinwhere?AmachineindustryinChina,""theworld'sfirstperformanceintheIn2009,thefinancialcrisisofglobalmachineindustry,causingseriousimpactinmachinetoolindustryofChina,generalbeforeorafterthetrendtowardsgoodstabilises.Datastatistics,Chinamachinetoolindustrythroughoutthetotalindustrialoutputvalue4014.2billionyuan,ayear-on-yeargrowthofmetalworkingmachinetools,domestic16.1percentfromlastyear'smarketvalueto70%,including61percentofhome-madenumericalcontrolmachine,industrytoraise51.6%62%offixedassetsinvestmentcompletedayear-on-yeargrowthof36%.Mediareports,2009Chinafirstbecamethefirstbigmachineproducer.Notonlysuch,Chinaalsoineightsuccessiveyearsisthefirstlargeconsumermachineandthefirstimporter.Atthebeginning,theglobaleconomytoreboundinChinathatsigns,centerforstructuraladjustmentofthemachinetool,investmententerpriseshowedsignsofrapidgrowthinorder.Expected2010yearmachinetoolindustrygrowthwillreachabout10%,metal-cuttinglatheswillachieveadouble-digitgrowthinhigh,Metalworkingmachinetoolswillimportandexportgrowthrestorative.Second,Chinamachineindustry","oneischeapproductperformanceDuetoourwholeindustryinwesternindustrializedcountriesbehindthelevelofenterprise'stechnicalforce,richindevelopment,notlagbehindinhigh-endproductsmarketfastpace.AccordingtoLiJingMingsaid,althoughChinatobecometheworld'sfirstmachineproduction,butstillistheworld'sfirstmachineimportedpower,China'seconomicconstructionofhigh-gradeforncmachinemainlyrelyonimports,Chinahasacompleteindustrialchain,butthedevelopmentofupscalenumericalcontrolCNCsystemandfunctionsrequiredfromoutsidethemainparts.Chinaexportedresource-dependent"(highpollutionandhigh,resource)"product,buttheseexportproductsimportedadvancedproductsTherefore,themachinetoolindustryleadingproductsandnationaleconomicdevelopmentneedsnotadapt,industrygardeproductswithhigh-gradeproductovercapacity,homebredhigh-performancefunctioncomponentsanddevelopmentofscientificresearchachievementsindisorder,supportingplanmorebutindustrializedapplicationeffectisnotobvious.Therefore,Chinamachinetoolindustrystillhassomeprofoundcontradictions.Third,the"machineindustryisnotstrong"performanceofsciencefoundationisweak,thelevelofproductqualityisOverallspeaking,ourmachineindustrytechnologyandlowlevelofmajortechnicalequipmentandkeyproductsfarcannotmeettheneedofnationaleconomicgrowth.Comparedwiththedevelopedcountries,China'sindustrialenterprisesinmachinetoolproductquality,technicallevelorinthemarketcompetitionability,exist,butalsothephasedgapbetweenthetrendoffurtherwidening.Manyoldequipment,productiontechnologyenterprise,productqualityisnotstable.Someofthebasiccomponentsandpartsofthemachine,theaccuracyandefficiencyoffoundationislower.Becauseofthequalityofhomebredmachinecanmeettheneedsofourusers,resultinginincreasedinrecentyears,theimportandexportimportmachinetools,despitehugedeficitsdomesticmarketdemand,butnearlyhalfofthedomesticmarketbyforeignoccupation.Currentmarketisexquisiteproductsdevelopedwesterncountries,large,heavyandoccupythemarketbyordinarymachine,CNCRussiaoccupiedTaiwanaffordableproducts,machinetoolindustryinfluxcrisis.ThemachineindustryinChina,""performanceisthelackoflargeinternationalgroupthreemarketcompetitivenessandweakLiJingMingtothemedia,said,"thoughChinahasthemostnumberofmachinetoolintheworld,butalsolackmanufactureroffamousmultinationalmachinegroupandworld-class"pure,andsmallgiant"enterprise".Theauthorwillknow,atpresentthedevelopmentofthemachinetoolindustrybetterlargeenterprisegroup,jinan,includingdalianmachinetoolsgroup,chongqing,agroupofmachinetools,shenyang,shaanxiqinchuanmachinetoolsgroup,othergroupetc.Withtheworldtopmachinegroupoflargegroupalsofewcomparable.Afterdecadesofdevelopment,ithasrealizedthencmachinecomputercontrolandiswidelyusedinindustry,especiallytheapplicationofmouldmanufacturingindustry.Forturning,milling,drillingandgrinding,metalcuttingmachiningprocessandelectricprocessing,laserprocessingandspecialprocessingtechnology,thedevelopmentofvariousneedsofncmachinetools.CategoriesCNCvariety,generallywillbedividedinto16CNC:CNClathe(containmillingmachiningcenteroffunction),CNCmillingmachine(includingmillingcenter),CNCKengBycuttingthemillingprocessmachiningcenter.CNCcylindricalgrinder(includinggrindingcenter),CNCdrilling(includingdrillingcenter),CNClachuangCNCplanersCNCcuttingmachineNcgearmachinetoolsThelaserprocessingmachinecontrolNcedmwedmNcedmmoldingmachine(includingmachiningcenter),Ncplateprocessingmachine.ThevillageCNCpipematerialmoldingmachinesOthernumerically-controlledmachinetoolUsuallybyCNCservosystem,controlsystem,testingsystem,mechanicaltransmissionsystemandotherauxiliarysystem.Controlsystemusedforncmachineoperation,managementandcontrol,throughthedatainputmedium,thesedatainterpretationandoperationeffectofmachinetools,Servosystembasedonthedirectivedrivenmachinecontrolsystem,thecontroldevicefromthepulsesignalconvertingmachinemotioninstructionsmovingparts,toolingandpartsofnccodeimplementationregulations;Detectionsystemisusedtodetectmachineexecution(workstation,etc.),skateboarddisplacementandspeedvariation,andwilltestresultsfeedbacktoinput,comparedwithinputcommands,accordingtoitsdifferenceadjustmentmachinemovement,Machinetransmissionsystemisbyfeedingservodrivecomponenttoexecutethemachinetoolsfortransmissiondevice,Auxiliarysystem,suchas:fixedphyleticandvariouscircular(canberepeatedprocessing),canbeexchangedfordao(cutting),transmissiondesignatedbacklashcompensationclaimsmechanicaltransmissionsystemtoproduceclearanceerror),etc.DigitalCNCequipmentincludesproceduresandreadbyelectroniccircuitcomponentpart,partoftheinputandoutputcontrolsection,etc.Accordingtothenumericalcontroldevice,whichcanrealizethefunctionintopositioncontrol,linearcontrol,continuoustrajectorycontrol.Positioncontrolisonlyatoolortablefromcontroltoanotherlocation,then,andfixedprocessingthepathdoesnotneedtocontrol.Usingthiskindofnumericalcontrolpress,CNCisboringandCNCcoordinateboring,etc.Linearcontrolisstraighttrackcontrolthebeginningandendoftheaccurateeveninthisbetweentwopointstocontrolthefeedingspeedspecifiedonlinearcutting.UsingthiskindofcontroloftheplaneiswithCNCmillingmachine,millingandsteppedshaftturningandgrindingwithCNClatheandCNCgrindingmachine,etc.Continuoustrajectorycontrol(orprofilecontrol)oftwoormorecontinuouscontrolcoordinatedirectioncombinationmovement.Inordertomaketheknivesinaccordancewiththeprovisionsofthecurvetrackmachining,CNCequipmenthasthefunctionofinterpolationoperation,maketoolsoftrajectorywithminimumerrorapproximationoftheregulations,andtocoordinatethecontourcurvecoordinatedirectionofmovementspeed,soincuttingprocessoffeedingremainedregulationspeed.UsingthiskindofcontrolsurfacescanhavewithCNCmillingmachine,CNClathe,CNCcylindricalgrinderandmachiningcenter,etc.Servoloop,halfopenloopisdividedintothreetypesandclosed-loop.Openringedservoconsistsofsteppingmotordrivercircuit,andthesteppingmotor.EachpulsesignalthatsteppermotorrotationbycertainAngle,ballscrewdriveworktablemovingacertaindistance.Theservoissimpler,stableoperation,easytomaster,butimproveaccuracyandspeedisrestricted.Halfclosedservoisbycomparinglines,circuits,servomotorservoamplifier,speedanddetector.DetectorPositiondetectorinballscreworservomotor,useofaballscrewrotationAngleindirectlymeasureofworkbenchposition.Commondcservomotorhaswidespeedmotivation,widespeedacmotorandelectrohydraulicservomotor.Positiondetectorsarerotatingtransformer,photoelectricpulsegeneratorandgratings,etc.Theservomechanismofaccuracy,speedanddynamiccharacteristicsofopenloop,thebetterforthemostservobysmallandmedium-sizedncmachinetools.Servoloopoftheworki