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(二〇一一年七月本科综合设计说明书学校代码:10128学号:200820101132题目:钻孔组合机床动力滑台液压系统设计学生姓名:***学院:机械学院系别:机械系专业:机械设计制造及其自动化班级:机制08-1指导教师:雷秀教授摘要制造业是一个国家或地区经济发展的重要支柱,其发展水平标志着该国家或地区的经济实力、科技水平、生活水准和国防实力。而制造业的生产能力主要取决于制造装备——机床的先进程度。组合机床是自动化程度相对较高的金属切削专用机床,当动力滑台配以不同的动力头、主轴箱和刀具时,可以对工件完成钻孔、扩孔、绞孔、镗孔、攻螺纹、铣平面等加工任务。动力滑台、夹具的动作由液压系统设计完成。动力滑台是组合机床上实现进给运动的一种通用部件,配上动力头和主轴箱后可以对工件完成各种孔加工、端面加工等工序。钻孔组合机床动力滑台液压系统是完成组合机床各项功能的重要组成部分之一,其结构的合理性直接影响到钻孔组合机床的工作性能和可靠性能。本文在结合典型液压传动系统和一些具体参数并综合所学知识对钻孔组合机床动力滑台液压系统进行了新的设计与分析,主要设计液压系统原理图,并对液压系统在机床中的装配进行了一些必要的设计。其设计的基本思路基于以下要求:1.全面而准确的满足整机工艺和技术要求。2.结构简单,使用和维护容易。3.传动平稳,符合国家噪声标准要求。4.无泄露,无污染,高效节能。5.所有元件和零、部件的标准化、系列化、通用化程度高。6.自动化程度高、造价与整机相适应。设计验算结果说明,设计的工作装置满足设计要求。在AUTOCAD软件下绘制的液压系统原理图有利于为新产品设计和改型设计提供参考。关键词:钻孔组合机床;动力滑台;液压系统;AUTOCAD;差动;工进。AbstractMachineToolisarelativelyhighdegreeofautomationofmetalcuttingmachinetools,whencoupledwithdifferentpowerslidingtablepowerhead,thespindleandtoolbox,theworkpiececanbecompleteddrilling,reaming,boring,tapping,planemillingandotherprocessingtasks.powerslide,clampactionbythehydraulicsystemiscompleted.DrillingMachineToolpowerslidinghydraulicsystemisthecompletionofthecombinationmachinefeaturesanimportantpartofitsstructureareasonablecombinationofadirectimpactondrillingperformanceandmachinereliability.Inthispaper,combinedwiththetypicalparametersofthehydraulicsystemandanumberofspecificandcomprehensiveknowledgeofthecombinationdrillingmachinehydraulicsystem,powerslidinganewdesignandanalysis,themainhydraulicsystemdesign,andhydraulicsysteminthemachinetoolassemblysomenecessarydesign.Thebasicidealofthedesignbasedonthefollowingrequirements:。1.Acomprehensiveandaccuratetomeetthewholeprocessandtechnicalrequirements.2.Simplestructureandeasymaintenance.3.Smoothtransmission,inlinewithnationalnoisestandards.4.Noleakage,non-polluting,energy-efficient.5.Allcomponentsandpartsandcomponentsstandardization,serialization,universalhigh.6.Highdegreeofautomation,costcompatiblewiththemachine.Checkingtheresultsofthedesignspecification,designofworkingdevicetomeetdesignrequirements.AUTOCADsoftwareinthenextschematicdrawingofthehydraulicsystemisconducivetothedesignofnewormodifiedproductdesigntoprovideareference.Keywords:DrillingMachineToolpowerslidinghydraulicsystemdesign;Designparametersandchecking;AUTOCADdrawingdifferential;workinto.目录引言.................................................................1第一章概论...........................................................21.1组合机床加工方式...............................................21.2组合机床的发展史...............................................21.3组合机床部件分类...............................................21.4组合机床的发展.................................................31.5设计要求........................................................3第二章负载计算.......................................................42.1钻削钻削轴向负载力LF...........................................42.2滑台对导轨的摩擦力..............................................42.3惯性力..........................................................4第三章液压系统主要参数确定...........................................6第四章液压系统组成及原理图设计.......................................94.1主题方案的确定...................................................94.2基本回路确定.....................................................94.2.1供油回路..................................................94.2.2压力控制回路..............................................104.2.3方向控制回路..............................................104.2.4速度控制回路..............................................104.2.4夹紧控制回路..............................................114.3液压系统原理图综合..............................................12第五章液压原件选型..................................................145.1液压泵的选择....................................................145.2液压泵驱动电机的选择............................................145.3液压控制元件及辅助元件的选择....................................155.4液压管路的确定..................................................165.5油箱容积V的计算................................................16第六章主要部件差动液压缸强度和稳定性的校核..........................176.1主要零件强度的校核..............................................176.1.1缸筒壁厚=10mm...........................................176.1.2缸底厚度δ1=15㎜..........................................186.1.3杆径d.....................................................196.2液压缸稳定性计算................................................196.3根据上述计算确定动力滑台简图如下所示............................20第七章液压系统性能验算..............................................217.1回路压力损失验算................................................217.2估算系统效率....................................................217.2.1运动持续时间计算..........................................217.2.2估算效率..................................................217.3估算系统发热效率................................................227.4计算温升........................................................22结论................................................................23参考文献..............................................................24谢辞.................................................................251引言组合机床(transferandunitmachine)组合机床是以通用部件为基础,配以按工件特定形状和加工工艺设计的专用部件和夹具,组成的
本文标题:钻孔组合机床动力滑台液压系统设计(课程设计)
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