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HUNANUNIVERSITY毕业设计(论文)设计论文题目：固定式多头自动螺丝装配设备的设计学生姓名：学生学号：专业班级：学院名称：指导老师：学院院长：2013年6月1日湖南大学毕业设计(论文)第I页固定式多头自动螺丝装配设备的设计摘要本设计的任务是完成一套螺钉自动装配设备。经过方案拟定、分析、实验等步骤本次设计完成了机械装置部分的设计跟控制系统方面的设计。在机械装置设计部分，经过对运动情况，尺寸的设定等分析实验，最终完成了整机的结构设计，包括机架等。在机械装置的运动系统设计中，以电批为核心部件、实现电批头的旋转来拧紧螺钉，用气动作为传动方式，采取一个气缸来实现电批头的上下往复运动。在行程控制方面，采用了十字万向联轴器来解决非同轴的旋转运动，用弹簧、套筒等来缓冲行程，实现行程控制。在系统控制方面，经过分析了解到，机械装置需要完成检测螺钉、工件的到位情况，气缸的伸缩情况，电批的旋转停动情况等一系列自动化动作，因此需要用到控制器来完成。本设计中采用了以PLC为核心的控制系统，用传感器、开关等作为信号检测跟输入，用程序编写来完成计数、气缸的伸缩控制、电批的旋转与否等功能。总体来说，本次设计能够实现螺钉的自动装配的任务。关键词：设计；螺钉自动装配；机械装置；控制系统；湖南大学毕业设计(论文)第II页Fixedmulti-axisscrewautomaticassemblyequipmentdesignAbstractThedesigntaskistocompleteasetofscrewautomaticassemblyequipment.Afterprogramming,analysisandexperimental,thedesigniscompletedwithsomemechanicaldevicecontrolsystemdesignaspects.Inthemechanicaldevicedesignpart,throughtomovement,suchasanalysisofexperimentalsetsize,thefinalcompletionofthestructuraldesignofthemachine.Motionsystemdesign,therotationofthepowergrantedasacorecomponentoftheelectricscrewdrivertotightenthescrews,asatransmissionofapneumatic,takeacylinderupanddownreciprocatingmotionoftheelectricscrewdriver.Strokecontrolusingacrossuniversalcouplingtosolvethenon-coaxialwiththerotationalmovement,withaspringsleevecushioningstroke.Inthesystemcontrolmechanismneedtocompletethedetectionscrews,telescopiccylinderandaseriesofautomatedactions,usethecontrollertocomplete.ThedesignusedinthePLCcontrolsystem,sensors,etc.,asthesignalisdetectedwiththeinputcompletionofthecount,theexpansionandcontractionofthecylindercontrol,withprogramming,therotationofelectricscrewdriverandotherfunctions.Overall,thedesigncanachievethetaskofautomaticassemblyscrews.KeyWords:design;screwautomaticassembly;machinery;controlsystem湖南大学毕业设计(论文)第III页目录第1章绪论............................................................................................................................11.1课题背景及目的............................................................................................................11.2国内外研究状况............................................................................................................11.3设计和研究方法............................................................................................................21.4设计过程及内容............................................................................................................2第2章方案选择....................................................................................................................42.1总体方案设计................................................................................................................42.1.1装置功能要求.........................................................................................................42.1.2技术指标.................................................................................................................42.1.3总体方案............................................................................................................................42.1.4方案可行性分析..............................................................................................................42.2传动方案设计................................................................................................................52.2.1机电传动.................................................................................................................52.2.2液压传动.................................................................................................................52.2.3气压传动.................................................................................................................6第3章各部分设计与计算....................................................................................................73.1总体布局设计..............................................................................................................73.2万向节部分总体设计..................................................................................................73.2.1万向节部分轴的计算...........................................................................................73.2.2十字万向联轴器的选取.......................................................................................93.3气缸的选取与校核....................................................................................................103.3.1气缸的选取.........................................................................................................103.3.2气缸的设计计算.................................................................................................113.4两直线导轨轴的设计计算........................................................................................133.5轴承............................................................................................................................143.5.1轴承的选取.........................................................................................................143.5.2直线轴承的强度校核.........................................................................................143.6电批、电批头传感器的选取........................................................