拨叉钻孔夹具.docx

毕业设计（论文）题目

摘要

随着全球制造产业的区域转移整个制造行业竞争的加剧，所有机械加工生产单位都面临提高生产效率的问题。

本论文是结合目前实际生产中，常常发现仅用通用夹具不能满足生产要求，用通用夹具装夹工件生产效率低劳动强大，加工质量不高，而且往往需要增加划线工序，而专门设计的铣床钻床夹具，主要包括夹具的定位方案，夹紧方案、对刀方案、钻模套方案，夹具体与定位键的设计及加工精度等方面的分析。可以有效的减少工件加工的基本时间和辅助时间，大大提高了劳动生产力，从而可以有效地减轻工人的劳动强度和增加劳动效率。

关键词：铣床，钻床，对刀块，钻模套，拨叉

ABSTRACT

Withtheglobaltransferofmanufacturingindustryinregionalcompetitionthroughoutthemanufacturingindustry,allproductionunitsarefacingmachiningtoimproveproductionefficiency.Inthemachiningprocesstechnologyandequipmentastheworkpiececlampingfixture,inimprovingtheproductionefficiencyhasitsparticularadvantages.Especiallyinthemachiningprocess,withappropriateprocessingaids.(Suchasfixtures)sopowerfulintheimprovedproductionefficiency,somanycomplexpartsprocessingaspossible,conventionalmachiningpartstofurtherenhancethequalityandreducelaborintensity,inensuringqualityofproducts,whilemassproductionofprecision,thusreducingproductioncosts.Tosomeextentincreasetheuseoffixtureactualproductionefficiencyofenterprises.Thustheunderstandingofknowledgeandlearningfixtureintodayspriorityisobviouslyimportant.

Thispaperiscombinedwiththecurrentactualproduction,oftenfoundonlyuniversalfixturecannotmeettheproductionrequirements,workpiececlampingfixturewiththegenerallowproductivityoflaborpower,processingqualityisnothigh,andoftenneedtoincreasethemarkingprocess,aspeciallydesignedTypesofmillingfixture,includingfixturelocatingscheme,clampingprogram,toolprograms,foldersandlocationspecifickeyaspectsofthedesignandanalysisofprecisionmachining.Workpiececaneffectivelyreducethetimeandsupportthebasictime,greatlyimprovinglaborproductivity,whichcaneffectivelyreducethelaborintensityandincreaselaborefficiency

KEYWORDS:.Drilling，MillingMachine，ToolBlock，Drillingtemplate，Fork

目录

刖言1

第1章机床夹具概论2

1.1机床夹具及其功用