/NUMPAGES77在现代机械制造业中，企业对专用机床有着广泛的需求。一般钻床劳动强度大，专用性能低。生产率不高且不能保证精度；而多轴钻床操控方便、省力、容易掌握，不易发生操作错误和故障，不仅能减少工人的劳动强度，保证工人和钻床的安全，还能提高钻床的生产率。随着科学技术的不断发展，专用钻床广泛应用于制造业。换句话说，专业化越强，企业越能保证其产品质量。因此，专用机床的使用对企业竞争力的提升有着十分重要的作用。本设计主要解决了两大问题：多轴钻床的总体设计和夹具设计。为了解决上述两大难题，首先分析了钻床总体设计，其中包括加工工艺分析、钻床的钻削方式的设计等，从而解决了钻床的总体设计的难题；在夹具设计中采用合理的钻模板和定位装置对工件合理定位，从而完成孔的扩铰工序，解决了多轴钻床夹具设计中的另一难题，同时也讨论了多轴钻床的夹具设计问题，给出了夹具设计方案，其中包括工件的定位分析，误差分析，从而使工件被加工后达到设计要求。关键词：多轴钻床、总体设计、夹具AbstractThespecial-purposelatheisextensivelydemandedbyenterprisesinthemodernmechanicalmanufacturingindustry.Theordinarylathenotonlyneedalargenumberofman-powerbutalsohasalowperformance.Inaddition,itsproductivityislowandtheaccuracycan’tbeensured.However,thespecial-purposelathecannotmerelyhelpenterprisestoboostproductivitygreat,savingalargenumberofmanpowerandmaterialresource,stillcanimprovethequalityoftheproducts.Meanwhile,itiseasilymaneuveredandguaranteesworkers’safety.Withthedevelopmentoftechnology,multi-axlesdrillingmachinesareusedinmanufacturingfrequently.Hence,theuseofthespecial-purposelatheplaysanimportantpartinthecompetitivenessofenterprises.Thisdesignmainlysolvedtwobigproblems:themulti-axlesdrillingover-alldesignandfixturedesign.Inordertosolvethesetwoproblems,firstofall,weanalyzeddrillingtotaldesignproject,includingprocessingtechnologyanalysis,drillingmachineofthedesignofdrillingway,whichsolvedtheproblemoftheoveralldesignofdrilling;Thenweadoptthefixturedesignreasonabledrilltemplateandpositioningdeviceonthereasonablepositioning,thuscompletingholeenlargementhingeprocess,solvedthemulti-axlesdrillingfixturedesignofanotherproblem,alsodiscussesthemulti-axlesdrillingfixturedesignproblem,thispaperpresentsfixturedesignscheme,includingtheworkplacepositioninganalysis,thusmakeerroranalysisisprocessedworkplacetomeetthedesignrequirements.Keywords:multi-axlesdrillingmachinetotaldesignprojectfixturedesign目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc326304708"摘要PAGEREF_Toc326304708\h11、HYPERLINK\l"_Toc326304709"前言PAGE