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1、本科毕业设计说明书（论文）题目：MJ50数控车床X轴进给系统结构设计专业：机械设计制造及其自动化毕业设计说明书（论文）中文摘要摘要：本课题对MJ50型数控车床X轴进给系统结构进行了设计，数控车床的进给系统负责接收数控系统发出的脉冲指令，经放大和转换后驱动机床，执行预期的运动。它的灵敏度和传动精度高，响应速度快且工作稳定，构件刚度高及使用寿命长，故进给系统结构有较高的研究意义。MJ50是一种经济性数控车床，其X轴的主要结构零件包括伺服电机、滚珠丝杠、同步带、滚珠丝杠支承轴承、滚动导轨和限位挡块。采用
2、交流伺服电机，能在整个速度区内可实现平滑控制，几乎无振荡；采用低摩擦传动副，如滚动导轨和滚珠丝杠副，传动效率高，定位精度和重复定位精度高且传动有可逆性；采用同步带联接丝杠和电机，结构简单、传动平稳，能缓冲吸振，可以在大的轴间距和多轴间传递动力，结构紧凑，传动效率高。关键词：进给系统滚珠丝杠导轨南京工程学院工业中心毕业设计说明书毕业设计说明书（论文）英文摘要TitleEconomicalCNClatheAbstractThesubjectofMJ50numericalcontrollatheXaxi
3、sfeedsystemstructuredesign,CNClathefeedsystemisresponsibleforreceivingCNCsystemapulseinstruction,afteramplificationandconversiondrivemachine,movementisexpectedtoperform.Itssensitivityandtransmissionaccuracyarehigh,thespeedofresponseandthestabilityofth
4、ework,thestiffnessofthecomponentandthelongservicelife,sothestructureofthefeedsystemhasahigherresearchsignificance.MJ50isakindofeconomicalnumericalcontrollathe,itsmainstructurepartsofXaxisincludeservomotor,ballscrew,synchronousbelt,ballscrewbearing,rol
5、lingguideandlimitstopblock..ByACservomotor,canrealizethesmoothcontrolinthewholespeedregion,almostnooscillation;thelowfrictiontransmissionpair,suchasrollingguidewayandballscrewpair,withhightransmissionefficiency,positioningaccuracyandrepeatabilityofpos
6、itioningaccuracyandhightransmissionisreversible;;low-frictiontransmissionpair,suchasrollingguideandballscrew,hightransmissionefficiency,highpositioningaccuracyandrepeatabilityofpositioningaccuracyandreversibledrivesex;withbeltcouplingscrewandmotor,sim
7、plestructure,smoothtransmission,canbufferthevibrationabsorptioncantransferpowerbetweenthemajoraxisandmulti-axisspacing,compactstructure,hightransmissionefficiency.bysynchronousbeltconnectedwiththescrewrodandthemotor,hastheadvantagesofsimplestructure,s
8、tabletransmission,buffering,vibrationabsorption,canbeinlargeshaftdistanceandmultipleshafttotransmitpower,compactstructure,transmissionefficiencyishigh.Keywordsaxisfeeddrivesystem;ballscrew;theguideway南京工程学院工业中心毕业设计说明书目录前言1第一章绪论21.1引言21.2选题背景与意
