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立式内孔表面珩磨机总体设计论文[带图纸].doc

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立式内孔表面珩磨机总体设计论文[带图纸].doc

I本科毕业设计论文题目立式内孔表面珩磨机的总体设计系别机电信息系专业机械设计制造及其自动化班级学生学号指导教师2013年05月II立式内孔表面珩磨机的总体设计摘要随着科学技术的迅速发展,国民经济各部门所需求的多品种、多功能、高精度、高品质、高度自动化的技术装备的开发和制造,促进了先进制造技术的发展。珩磨加工是一种最常用的内孔表面加工方式,近年来随着对油缸等产品市场需求量的大幅提升,如何找到经济高效的内孔精密加工方法,成为许多厂家面临的课题。磨削加工技术是先进制造技术中大的重要领域,是现代机械制造业中实现精密加工、超紧密加工最有效、应用最有效的基本工艺技术。本次设计从分析机械系统设计的任务和目标开始,介绍机械系统的组成,各组成部分之间的配置,选择和结构匹配性设计,以及进行机械系统整体设计时应该考虑哪些问题,目的是培养学生结构设计创新和整体设计的能力,培养自己的综合分析和解决本专业的一般工程技术问题的独立工作能力,以加强对理论知识的理解。本次设计首先是珩磨机的总体设计,主要包括主轴箱,珩磨头,主轴以及带传动、液压系统传动等部分的设计。对珩磨机做了简单介绍,接着对珩磨机的主要部件进行了尺寸计算和校核。该设计代表了珩磨机设计的一般过程。关键词珩磨机主轴珩磨液压系统IIVerticalhoningmachineoveralldesignoftheinnerholesurfaceAbstractWiththerapiddevelopmentofscienceandtechnology,thedemandofnationaleconomicsectorsmorevarieties,multifunction,highprecision,highquality,highautomationtechnologyandequipmentdevelopmentandmanufacturing,topromotethedevelopmentofadvancedmanufacturingtechnology.Honingprocessingisoneofthemostcommonlyusedwayofinnerholesurfacetreatment,inrecentyears,alongwiththemarketdemandforoilcylinderandotherproducts,howtofindaeconomicandefficientinnerholeprecisionmachiningmethod,manymanufacturersarefacedwiththetask.Grindingtechnologyisoneoftheimportantareas,cuhkadvancedmanufacturingtechnologyisimplementedinmodernmechanicalmanufacturingprecisionmachining,thesuperclosethemosteffective,theapplicationofthemosteffectivetechnology.Thisdesignfromtheanalysisofmechanicalsystemsdesigntasksandgoals,thecompositionofthemechanicalsystemisintroducedinthispaper,configuration,betweeneachcomponentmatchingselectionandstructuredesign,andwhatissuesshouldbeconsideredwhentheoveralldesignofmechanicalsystem,thepurposeistocultivatestudentsinnovativestructuraldesignandtheoveralldesignability,cultivatingtheircomprehensiveanalysisandsolvethismajorgeneralengineeringtechnicalproblemofabilitytoworkindependently,tostrengthentheunderstandingoftheoreticalknowledge.Firstistheoveralldesignofhoningmachine,thedesignmainlyincludesthemainspindlebox,honinghead,shaftandbelttransmission,hydraulicsystemandotherpartsofthedesign.Forhoningmachinetodoasimpleintroduction,andthenforamajorpartofthehoningmachinetocalculateandcheckthesize.Thisdesignrepresentsthegeneralprocessofhoningmachinedesign.KeyWordshoningmachineheadstockhoninghydraulicsystemIII目录1绪论.........................................................................................................................11.1普通珩磨加工.....................................................................................................11.2珩磨加工原理.....................................................................................................11.3珩磨加工特点.....................................................................................................21.4课题来源及组织架构.........................................................................................32总体方案设计........................................................................................................42.1整体布局设计要求.............................................................................................42.2珩磨机床结构特点.............................................................................................42.3珩磨机床传动部分设计.....................................................................................42.3.1立式珩磨机特点..........................................................................................42.3.2设计传动部件..............................................................................................52.3.3珩磨前工序要求..........................................................................................52.4珩磨液的选择.....................................................................................................63立式珩磨机结构计算.........................................................................................73.1珩磨头工艺参数的计算.....................................................................................73.1.1选择珩磨油石..............................................................................................73.1.2加工余量......................................................................................................73.1.3珩磨油石的越程..........................................................................................83.2设计计算珩磨速度.............................................................................................83.3珩磨机主运动参数.............................................................................................93.3.1主运动参数..................................................................................................93.3.2电机的选择.................................................................................................103.3.3传动比分配................................................................................................113.4减速器的设计...................................................................................................123.4.1减速器的类型............................................................................................123.4.2减速器选用................................................................................................123.4.3ZDY100型减速器特点..........................................................................133.5带传动的设计...................................................................................................133.5.1确定计算功率............................................................................................133.5.2选取V带带型...........................................................................................133.5.3确定带轮基准直径并验算带速................................................................143.5.4带速验算....................................................................................................14IV3.5.5V带基准长度和传动中心距的确定.........................................................143.5.6验算小带轮包角........................................................................................143.5.7计算V带根数...........................................................................................153.5.8计算单根V带预紧力min0F..................................................................153.5.9计算轴压力F............................................................................................153.5.10带轮结构................................................................................................................153.6直齿锥齿轮的设计计算..............................................................................................154轴的结构设计.....................................................................................................194.1轴结构设计基本要求.......................................................................................194.2改善轴装配及加工工艺一些措施...................................................................194.3轴刚度校核.......................................................................................................194.3.1轴Ⅰ结构....................................................................................................204.3.2轴强度验算................................................................................................234.3.3轴材料及热处理........................................................................................275轴承选用及校核................................................................................................285.1轴承选用及校核...............................................................................................285.2滚动轴承预紧和游隙.......................................................................................286液压油缸的设计计算.......................................................................................316.1确定液压缸内径...............................................................................................316.2确定缸筒厚度...................................................................................................326.3缸筒底部厚度计算...........................................................................................326.3.1缸筒加工要求............................................................................................326.3.2活塞杆结构................................................................................................326.4活塞杆校核.......................................................................................................326.5活塞杆加工要求...............................................................................................336.6机架设计...........................................................................................................337总结.......................................................................................................................35参考文献...................................................................................................................36致谢............................................................................................................................37

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