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手柄座零件机械加工工艺及钻Φ10孔夹具设计说明书[带图纸].doc

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手柄座零件机械加工工艺及钻Φ10孔夹具设计说明书[带图纸].doc

本科毕业设计论文题目手柄座零件机械加工工艺和典型夹具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5月I手柄座零件机械加工工艺和典型夹具设计摘要手柄座零件是车床操纵部分的组成零件之一,该手柄座的作用相当于一个连杆,车床外部手柄的运动是通过车床手柄座传递到车床内部实现人为对机床的操纵。在设计中,主要目的是根据零件选择合理的工艺路线,然后制定出一套可行的夹具。本文涉及两大部分,第一部分是对手柄座零件的分析及工艺规程的制定第二部分是对于零件中的两次钻孔加工采用不同的定位、夹紧方式进行典型夹具的设计。通过设计一方面使我们更进一步熟悉了产品加工设计的全过程,在制定加工方案的时候,充分考虑其经济性和可行性。另一方面通过对手柄座零件的机械加工工艺规程设计和钻孔用夹具设计,试图找出一种简单、实用的加工方法,以供生产同类零件的企业参考。关键字手柄座工艺夹具IIHandlePartsMachiningProcessandTypicalFixtureDesignAbstractHandleseatpartsisoneofthecomponentpartsoflathepartsmanipulation,thehandleseatACTSasaconnectingrod.Movementishandlebylatheexternalhandlestothelatheinternalimplementationartificialcontrolformachinetools.Inthedesign,themaintaskisaccordingtothepartsduringthedesignandcalculation,includingprocessingmachinetools,spindlespeed,thethreeelementsofcuttingthereasonableselectionoftheprocessingtechnology,aswellasthetypicalfixturedesign.Thisarticleinvolvestwoparts,thefirstpartistheanalysisofthehandleseatpartsandprocessingprocedures.Twodrillinginthesecondpartisforpartswithdifferentwayofpositioning,clampingtypicalfixturedesign.Throughthedesignontheonehand,makeusmorefamiliarwiththewholeprocessoftheproductprocessingdesign,atthetimeofprocessingplanformulation,givefullconsiderationtoitseconomicalefficiencyandfeasibility.Ontheotherhandthroughthehandlepartsofthemachiningprocessplanningdesignanddrillingfixturedesign,tryingtofindoutasimpleandpracticalprocessingmethods,toprovidethereferenceforthemanufactureofsimilarparts.KeywordsthehandleseatprocessfixtureIII目录1绪论.......................................................................................................................................11.1前言..................................................................................................................................11.2题目背景及意义..............................................................................................................11.3国内外相关研究情况.....................................................................................................11.4本课题研究内容..............................................................................................................21.5夹具分类..........................................................................................................................22零件的分析.........................................................................................................................42.1生产纲领..........................................................................................................................42.2零件作用..........................................................................................................................42.3零件工艺分析..................................................................................................................53工艺规程设计....................................................................................................................63.1毛坯制造..........................................................................................................................63.2基面选择..........................................................................................................................63.2.1粗基准选择.............................................................................................................63.2.2精基准选择.............................................................................................................63.3制定工艺路线..................................................................................................................63.3.1工艺路线方案一.....................................................................................................63.3.2工艺路线方案二.....................................................................................................73.3.3工艺方案分析.........................................................................................................73.4加工余量确定..................................................................................................................83.5确立切削用量及基本工时..............................................................................................84钻螺纹孔夹具设计.........................................................................................................194.1任务提出.......................................................................................................................194.2定位方案及定位装置设计...........................................................................................194.2.1定位方案确定......................................................................................................194.2.2定位元件设计.......................................................................................................194.2.3定位误差分析.......................................................................................................194.3导引元件(装置)设计................................................................................................194.4夹紧方案设计................................................................................................................204.4.1夹紧方案确定......................................................................................................204.4.2夹紧力大小分析..................................................................................................204.4.3夹紧机构及装置设计..........................................................................................20IV4.5夹具操作及维护简要说明............................................................................................205钻孔夹具设计..................................................................................................................225.1任务提出........................................................................................................................225.2定位方案及定位装置设计............................................................................................225.2.1定位方案确定.......................................................................................................225.2.2定位元件及装置设计...........................................................................................225.2.3确定最佳定位方式...............................................................................................235.2.4定位误差分析.......................................................................................................235.2.5定位元件型号尺寸和安装方式...........................................................................235.3夹紧方案确定................................................................................................................245.4夹具的操作及维护........................................................................................................256结论.....................................................................................................................................27参考文献...............................................................................................................................28致谢.........................................................................................................................................29

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