X6132A铣床主轴机械加工工艺规程与铣键槽专用夹具设计

2012届毕业设计说明书X6132A铣床主轴机械加工工艺规程与铣键槽专用夹具设计院、部：机械工程学院学生姓名：王似景指导教师：陈平职称副教授指导教师：邓兴贵职称副教授专业：机械设计制造及其自动化班级：机本0802学号：082014402162012年6月摘要在机械制造工业中，由于被加工零件形状和表面以及精度要求不同而发展、产生了种类繁多的金属切削机床。在生产实际中大量使用铣床、磨床、钻床、镗床以及直线运动机床等。毕业设计是学生学完相应课程及先行课程之后进行的实习性教学环节，是大学生的必修环节，其目的在于通过机床运动的结构设计，使学生在设计构思，方案分析，结构工艺性，机械制图，零件计算，编写技术文件和查阅技术资料等方面得到综合训练，树立正确的设计思想，掌握基本的设计方法，培养学生具有初步的结构分析，结构设计和计算能力。本次设计是对铣床主轴机械加工工艺规程与铣键槽专用夹具进行全面设计，使其满足实际生产工作的需要。关键字：铣床；工艺；专用夹具；主轴；设计ABSTRACTInmachinemanufactureindustry,becauseisprocessedthecomponentsshapeandsurfaceaswellastheprocisionrequestdifferentdevelops、hasproducedthetypemanymetalcuttingenginebed.Isproducingactualmassiveusesthemillingmachine,thegrinder,thedrillingmachine,theboringlatheaswellasthetranslationenginebedandsoon.Thegraduationdesignisthepractiseteachinglinkwhichcarriesonafterwardsinthestudentstudycorrespondingcurriculumandtheadvancecurriculum,isuniversitystudent'scompulsory.Itsgoalliesinthroughtheenginebedmovementstructuraldesign,causesthestudentsintodrawupthetransmissionandinthespeedchangestructureplanprocess,obtainsthedesignidea,theplananalysis,thestructuretechnologycapability,themechanicaldrawing,thecomonentscomputation,thecompilationtechnologydocumentandaspectandsoonconsulttechnicaldataintegratedtrainings,setupthecorrectdesignconcept,graspsthebasicdesignmethod,andtrainsthestudentstohavethepreliminarystructureanalysis,thestructuraldesignandcomputationability.Thedesignisaspecialfixtureformillingspindlemachiningprocessplanningmillingkeywaydesigntomeettheneedsoftheactualproductionwork.Keywords:millingmachine;Technology;Specialfixture;spindle;design目录机械加工工艺规程....................................................11.生产纲领及生产类型...............................................12.零件的分析...............................................22.1零件的作用..................................................22.2零件的工艺分析..............................................24基准的选择........................................................34.1粗基准的选择................................................34.2精基准的选择................................................35制定工艺方案......................................................35.1工艺路线的制定..............................................35.2工艺方案的比较与分析........................................56机械加工余量，工序尺寸及毛坯尺寸的确定............................56.1毛坯直径的确定..............................................66.2毛坯长度L的确定：..........................................67确定切削用量及基本工时............................................97.1工序二：车端面，钻中心孔....................................97.1.1粗车Φ88.88端面.......................................97.1.2车Φ40端面...........................................107.2工序三：粗车各外圆.........................................117.2.1粗车Φ88.88外圆.....................................117.2.2粗车Φ65外圆........................................147.2.3粗车Φ55外圆........................................157.2.4粗车Φ45外圆........................................157.2.5粗车Φ42外圆........................................167.2.6粗车Φ40外圆.........................................167.3工序四：半精车各外圆.......................................177.3.1半精车Φ88.88外圆....................................177.3.2半精车Φ65外圆.......................................197.3.3半精车Φ55...........................................207.3.4半精车Φ45...........................................217.3.5半精车Φ42...........................................217.3.6半精车Φ40...........................................227.4工序五：钻Φ25.3孔.........................................227.5工序六：钻Φ22、钻扩通孔Φ17...............................237.5.1钻孔Φ22mm...........................................237.5.2钻Φ17mm.............................................247.5.3扩孔Φ17mm...........................................257.6工序七：车Φ22、Φ25.3孔及其倒角.........................257.7工序八：车Φ22孔.........................................267.8工序九：车锥孔.............................................267.9工序十：粗精铣前端键槽.....................................277.9.1粗铣.................................................277.9.2精铣：...............................................287.10工序十一：钻4-M12，2-M6螺纹底孔.........................287.10.1.钻4-M12螺纹底孔：..................................287.10.2.钻2-M6螺纹底孔：...................................297.11工序十二：攻4-M12，2-M6螺纹..............................297.11.1攻4-M12：..........................................307.11.2.攻4-M6：...........................................307.12工序十三：精车各外圆、切槽，并倒角.......................317.12.1精车Φ88.88.........................................317.12.2精车Φ65............................................327.12.3精车Φ55............................................337.12.4精车Φ45............................................347.12.5精车Φ42............................................347.12.6精车Φ40............................................357.12.7切槽3×1.5：........................................357.13工序十五：粗精铣对称键槽..................................367.13.1粗铣：..............................................367.13.2精铣................................................377.14工序十六：粗磨锥孔........................................377.15工序十七：车螺纹..........