托架钻孔夹具的设计(高分本科机械毕业论文)

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1、托架钻孔夹具的设计完成日期：指导教师签字：评阅教师签字：答辩小组组长签字：答辩小组成员签字：I摘要本文主要介绍了机床夹具的发展背景和在机械加工中的作用，托架钻孔夹具的设计过程。夹具是在机械加工过程中，为了保证加工精度，固定工件，使之占有确定位置以接受加工或检测的工艺装备。工件在机床上加工时要确定两个安装要求，即定位和夹紧。设计过程中主要包括定位方案的选取，导向方案中钻套参数的选取，夹紧机构的选择，采用分度方案的原因及夹具体的选择；斜孔钻模上工艺孔的设置和计算，夹具总图上尺寸、公差及技术要求的标注；工件的加工精度分析等。关键字：夹具；钻模；定位；夹紧IIAbstractThisp

2、apermainlyintroducesthedevelopmentbackgroundofthemachinetoolfixtureandthefunctioninmachining,andthedesignprocessofbracketboringfixture..Thefixtureisintheprocessofmachining,inordertoguaranteethemachiningaccuracy,fixedtheworkpiece,sothatitoccupiesadeterminedpositiontoaccepttheprocessingortesti

3、ngprocessequipment.Theworkpieceinthemachinetoolprocessingtodeterminethetwoinstallationrequirements,thatis,positioningandclamping.Thedesignprocessincludelocatingschemeselection,orientedprogramdrillsetsofparametersselection,choiceofclampingmechanismbyindexingschemeandselectionofthespecificfold

4、er;settingandcalculationofinclinedholejigholeprocess,fixturegeneraldimensions,tolerancesandtechnicalrequirementsofthemark;workpiecemachiningaccuracyanalysis.Keywords:jig,jig,positioning,clamping;III目录1、绪论........................................................................................

5、..................................11.1课题研究背景及夹具发展趋势.......................................................................................11.2机床夹具................................................................................................................................31.2.1夹具主要的作用.....

6、.......................................................................................31.2.2机床夹具的分类............................................................................................31.2.3钻模设计要点........................................................................................

7、........41.3课题任务................................................................................................................................42、托架斜孔分度钻模的设计...................................................................................62.1定位方