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1、上海交通大学硕士学位论文刀具状态（磨损）在线切削力监控研究姓名：宋书善申请学位级别：硕士专业：机械工程指导教师：邵华20060501上海交通大学大学硕士学位论文摘要STUDYONCUTTINGFORCEFORTOOLCONDITIONMONITORINGABSTRACTNotonlydoestoolconditionmonitoringcontributedirectlytoefficiencyandsecurityoftheautomatedmachiningsystem,butalsotoproductquality,whichmakesit
2、urgenttobesolved.Thisthesis,fromthepracticalpointofview,isonthebackgroundoftoolconditionmonitoringintheactualcutting,AndsummarizedresearchresultsofcuttingtoolmonitoringtechnologybothinChinaandabroad。Focalizedonradialturning,isinvestigatethoroughlywiththeoreticalanalysisandlar
3、geamountofturningexperiments.Hasstudiedquestionoftoolconditionmonitoringbasedontheforcemodel,hasexploredthemodelofcuttingforcemonitoring,andestablishedrecognitionsystemfortoolconditionmonitoring.First,developedthecuttingexperimentalsystemofradialturning,theexperimentalmethodh
4、asbeencarriedon,andfinishedthecuttingexperiment.Then,hasprocessedandanalyzedtheforcesignalfromthedynamometerandthedataacquisitioncard,hasestablishedthecuttingforcemodelbasedonthecuttingparameterandthetoolconditioninthisfoundation,andhascarriedouttheexperimentverifying.Last,ha
5、sIII上海交通大学大学硕士学位论文摘要developedthestrategyoftoolconditionmonitoring,andelementalrealizedthetoolconditionmonitoring.Itisshownwiththeexperimentthat,1)theforecastvaluesofFzcanreflectchangeofactualcuttingforce;2)thecuttingforcemodelcancorrectlydescribetherelationsbetweencuttingforc
6、eandflankwear;3)andcandisclosetherelationsbetweenparameteroftoolconditionmonitoringandflankwearorcuttingfactors.Theseconclusionshavethepracticalvaluefordevelopingtoolconditionmonitoringsystemtoadaptthevariousconditions.Keyword:Cuttingforce,Model,toolcondition,onlinemonitoring
7、IV上海交通大学大学硕士学位论文目录符号说明F径向切削力xFy轴向切削力Fz主切削力Fr径向切削力Fa轴向切削力Fn法向切削力Fzs主切削力试验值Fzc主切削力预测值v切削速度ap切削深度f进给量VB后到面磨损量φ剪切角β摩擦角γ刀具前角0θ决定积屑瘤大小的附加角σ0假定屈服强度ac切削厚度aw切削宽度ξ变形系数e自然对数的底VIII上海交通大学大学硕士学位论文目录ε相对滑移m塑性曲线的斜率κr刀具主偏角χFr与剪切面的夹角τ屈服剪切应力X待定指数Y待定指数Z待定指数K待定系数KKK修正系数FzFyFxCCC被加工金属和条件系数FzFyFxxyn
8、主切削力切深、进给量、切速的指数FzFzFzxyn轴向切削力切深、进给量、切速的指数FyFyFyxyn径向切削力切深、进给量、切速的指数
