摘要按照毕设设计任务书的具体要求，在本文中对柴油机泵体端钻孔组合机床及其专用夹具为对象完成设计并对具体的设计过程予以说明。主要内容包括组合机床工艺方案的制定、组合机床配置型式的选择、总体设计和夹具设计。在本篇文章中，组合机床及其专用夹具的设计包含两大部分，其一为组合机床的总体设计部分，其二为专用夹具的设计部分。机床总体设计包含在选定工艺方案下完成机床配置形式的确定、结构方案的拟定等，基于拟定的结构方案确定“三图一卡”，制定夹具定位方案和夹紧方案。最后通过对各种不同的设计方案可行性及可操作性进行比较，最后确定最优方案。此外，需要通过设计专用夹具来降低劳动强度提升生产率，同时通过专用夹具来保证产品质量。关键词：柴油机泵体；三图一卡；组合机床；夹具1ABSTRACTAccordingtothespecificrequirementsofthedesigntaskbook,inthispaper,thedieselenginebodyenddrillingcombinedmachinetoolanditsspecialfixturearedesignedfortheobjectandthespecificdesignprocessisexplained.Themaincontentsincludetheformulationofthecombinedmachinetoolprocessplan,theselectionofthecombinedmachinetoolconfigurationtype,theoveralldesignandthefixturedesign.Inthisarticle,thedesignofthecombinedmachinetoolanditsspecialfixturesconsistsoftwoparts,oneistheoveralldesignpartofthecombinedmachinetool,andtheotheristhedesignpartofthespecialfixture.Theoveralldesignofthemachinetoolincludesthedeterminationofthemachineconfigurationformandtheformulationofthestructuralplanundertheselectedprocessplan.Basedontheproposedstructuralplan,the“threemapsandonecard”isdetermined,andthefixturepositioningschemeandtheclampingschemearedetermined.Finally,bycomparingthefeasibilityandoperabilityofvariousdesignschemes,theoptimalschemeisfinallydetermined.Inaddition,itisnecessarytoreducelaborintensitybydesigningspecialfixturestoincreaseproductivity,whileensuringproductqualitythroughspecialfixtures.Keywords:dieselenginepumpbody;threedrawingsandonecard;modularmachinetool;fixture2目录摘要................................................................1ABSTRACT............................................................2目录................................................................3第一章前言.........................................................31组合机床概述.....................................................41.1组合机床的特点..................................................41.2组合机床的分类和组成............................................51.3组合机床的设计步骤.............................................52组合机床总体设计..................................................62.1组合铣床工艺方案的制定..........................................62.2确定切削力、切削功率...........................................82.2.1选择切削用量...........................................82.3组合机床配置型式的选择.........................................112.4影响总体布置的因素.............................................122.5组合铣床的总体设计——三图一卡.................................122.5.1被加工零件工序图.......................................122.5.2加工示意图.............................................142.5.3组合机床联系尺寸图.....................................172.5.4生产率计算卡...........................................203组合机床夹具设计.................................................233.1组合机床夹具概述..............................................233.2定位支承系统概述...............................................243.2.1定位支承系统..............................
