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1、本科毕业论文(20届)非球面精密加工技术研究摘 要43摘要:在市场需求不断变化和科学技术飞速发展这两个巨轮的推动下,先进制造技术在不断向精密化、多样化等方向发展。非球面零件广泛应用上于军事方面、民用、光电产品和医疗仪器、实验仪器等诸多领域。目前,利用计算机自动控制技术,实现非球面元件的快速精密加工成型,能够保证非球面零件具有较高的面形精度和表面质量精度,然而如何对成型后的零件进行精确抛光,是制约中小口径非球面零件生产的瓶颈。作为超精密加工领域中的一个关键性技术难题,非球面零件的研抛加工引起了各国的高度重视。本文以控制研抛法向力为手段,综合应用现代控制理论、柔顺控制技
2、术、数控技术等先进技术,在不改变原有数控机床的基础上,通过研究基于力反馈控制的柔顺研抛系统,从而实现数控研抛非球面加工过程中的研抛法向力的控制。研抛加工实验研究:在基于以上的研究结果的前提下,利用本文的研抛工具系统进行的研抛加工实验,并对实验结果进行分析研究。关键词:非球面;精密加工;数控技术;柔顺研抛;恒速恒压。Abstract:Withthedevelopmentofmarketingdemandandrapiddevelopmentofsciencetechnology,theadvancedtechniqueofmanufacturetodirections
3、andsoonprecision,diversificationdevelopsunceasingly.Asphericalpartsarewidelyusedin43aspectsofmilitary,civil,photoelectricproductsandmedicalinstruments,experimentalinstrument,etc.Atpresent,usingthecomputerautomaticcontroltechnology,realizestheasphericsurfacepart'sfastprecisionsizingform
4、ation,canguaranteethattheasphericsurfacecomponentshavethehighfaceshapeprecisionandthesurfacequalityprecision.However,howtocarryonprecisepolishingaftertheformationcomponentsisintherestrictionthesmallcaliberasphericsurfacecomponentsproductionbottleneck.Asanultraprecisionsizingdomain'sinc
5、rucialtechnicaldifficultproblem,theasphericsurfacecomponentsgroundthrowtheprocessingtocausevariouscountriestotakeseriously.Thisarticletakecontrolsgrindsthrowsthenormalforceasthemethod,thesynthesisapplicationmoderncontroltheory,themild-manneredcontroltechnology,thenumericalcontroltechno
6、logyandsoonvanguardtechnology,indoesnotchangeintheoriginalnumerically-controlledmachinetool'sfoundation,grindsmild-manneredthroughtheresearchbasedonthestrengthreactioncontrolthrowsthesystem,thusrealizesthenumericalcontroltogrindthrowsintheasphericsurfaceprocessingprocesstogrindthrowsth
7、enormalforcethecontrol.Grindsthrowstheprocessingexperimentalstudy:Inbasedonundertheabovefindings'premise,grindsusingthisarticlethrowsthetoolsystemtocarryongrindsthrowstheprocessingexperiment,andconductstheanalyticalstudytotheexperimentalresult.Keywords:Asphericsurface;Precisionsizing