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1、柴油机机体两端面孔钻削组合机床—总体及液压系统设计摘要：组合机床是以通用部件为基础，配以少量专用部件，对一种或若干种工件按预先的工序进行加工的机床。它能对工件进行多刀，多轴，多面，多工位同时加工。本文在全面分析被加工零件的结构特点、尺寸精度、被加工孔相互之间位置精度、表面粗糙度和技术要求的基础上，根据实际需要，进行柴油机机体两端面孔钻削组合机床的总体和液压系统设计。首先通过分析比较，确定了柴油机机体两端面孔钻削组合机床的配置型式及结构的最佳方案，遵循机械设计中标准化、通用化、系列化原则，给出机床的总体设计方案。其次，根据被加工零件的加工要求，进行了相关切削参数的计算，确定了切削力、
2、切削功率及切削转矩，为组合机床设计中的通用部件和专用部件的选择提供了技术依据，并绘制出代表机床总体设计的被加工零件工序图、加工示意图、机床联系尺寸图和生产率计算卡，即“三图一卡”，进行了通用部件的选择。最后设计出液压系统原理图及液压站总装图。本液压系统可实现对工件夹紧、定位销插销拔销、滑台进给等的自动控制。关键词：组合机床；总体设计；“三图一卡”；液压系统42theOverallandHydraulicDesignofMachineToolWhichDrillingtheBothEndsoftheAirframeinDieselEngineAbstract:Machinetoola
3、llowustoprocessoneorseveralpartsbypre-processing,basedoncommoncomponentstogetherwithasmallamountofspecialparts.Theworkpiececanbemulti-tool,multi-axis,multi-faces,multi-stationwhileprocessing.Inthispaper,accordingtoactuallyrequirements,wewillworkouttheoverallandhydraulicdesignofmachinetoolwhich
4、drillingthebothendsoftheairframeindieselenginebasedonacomprehensiveanalysisofthestructurefeatures,dimensionalaccuracy,positionaccurancyoftheholesprocessed,surfaceroughnessandtechnicalrequirementsoftheworkpiecetobemachined.First,definetheassemblytypeandbestprogramsoftheconfigurationofthemachine
5、toolwhichdrillingthebothendsoftheairframeindieselenginebyanalysisandcompare,givetheprogramoftheoveralldesignabidingtheprincipleofstandardization,univerlizationandseries.then,accordingtotherequirementoftheworkpiecetobemachined,calculatingtherelevantcuttingparameters,definingthecuttingforce,cutt
6、ingtorqueandcuttingcapacity,offeringthetechnicalfoundationforthechoiceofthecommonpartsandspecificpartsofthedesigninthemachinetool,anddrawingthemachiningprocessdiagramoftheworkpiecetobemachinedwhichrepresenttheoveralldesignofthemachinetool,machiningsketch,diagramofthecontacteddimensioninmachine
7、toolandthecardcalculatingproductivity,namely“three-diagramandone-card”,completingtheselectionofthecommonparts.Finally,completetheschematicofthehydraulicsystemandthediagramofthehydraulicassembly.thishydraulicsystemenablestocontrolautomat
