目针对SINUMERIK802D数控系统的后置处理技术的研究

　　摘要
　　基于MasterCAM通用后置处理系统，应用数控代码导向技术，通过修改其数据库模型，较好地开发配置SINUMERIK802D数控系统的XK715数控镗铣床的专用后置处理程序，解决了该系统处理孔加工固定循环的难题，并成功应用于实际加工。通过实践验证，本系统能够直接处理轮廓、内槽、孔系、曲线及曲面的刀具路径文件，不需人工再做2次处理。
　　关键词：数控加工技术；数控系统；MasterCAM；刀位文件；后置处理；
　　机床特制文件
　　Abstract
　　PostprocessingtechnologyisoneofthemaintechnologyofNCmachiningprogramming，itistheconnectionofCADCAMsystemandmechanicalmachining，itdirectlyaffectstheapplyingaffection，machiningquality，effectanddependablerunningofautoprogrammingsoftware。Thistextexplicatesthecontent，structureandfunctionofpostprocessing，analysestocomparethespecialpostprocessingsystemsproceduralstructureandoperationalprocesswiththegeneralpostprocessingsystems，questionsthepostprocessingprocedureskeyproblemthealgorithmprincipleofpostprocessing，itstudiesthethreeaxissmachining，thecutterlocationcomputationofmultiaxissandthefeedrateofmultiaxissrunning，studiesandcomparesthegeneralcutterlocationfilesformofCADCAMsystems。ItcontainsthecodescharacterofSINUMERIK802DNCsystemonholemachiningconstantcycle；analysesthecutterlocationfiles’structureofMasterCAMsystem；studiesthemachinetoolsspecifiedfiles’designandmakingmethods。ThistextpointsoutthatthegeneralpostprocessingsystemisthedevelopingdirectionofCADCAMsystems，butbasingontheneedofprojectspracticalapplication，itsnecessarytostudyanddevelopthepostprocessingofextensivelyusedCAMsoftware。
　　ThistextisbasingonthegeneralpostprocessingsystemofMasterCAM，usingNCcodeleadingtechnology，bymodifyingitsdatabasemodel，itdevelopsanddisposesSINUMERIK802DNCsystemsspecialpostprocessingprocedureofXK715NCmillingmachine，solvestheproblemofdealingwithholemachiningconstantcycleandappliestopracticalmachining。Throughpracticalapplication，thissystemcandealwiththecuttertoolpathfileofcounters，groves，holes，curvesandsurfacesdirectly，notneedtodosecondmanaging。
　　KeyWords：NCMachiningTechnology；NCSystem；MasterCAM；CutterLocationFile；PostProcessing；TheSpecifiedFileofMachiningTool
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