钻夹体加工工艺及钻床夹具设计--论文.docx

PAGE\*MERGEFORMATV摘要钻夹体加工工艺及钻床夹具设计是包括零件加工的工艺设计，工序设计，以及专用夹具的设计三部分。在工艺设计中要首先对零件进行分析，了解零件的工艺在设计出毛坯的结构，并选择好零件的加工基准，设计出零件的工艺路线；接着对零件的各个工步的工序进行尺寸计算，关键是决定出各个工序的工艺装备及切削用量；然后进行专用夹具设计，选择设计出夹具的各个组成部件，如定位元件，夹紧元件，引导元件，夹具体与机床的连接部件以及其他部件；计算出夹具定位产生的定位的误差，分析夹具结构的合理性与不足之处，并在以后设计中进行改进。这次设计使我们能综合运用大学中学过的课程，如机械制图、理论力学、材料力学、机械设计技术基础、机械制造技术基础、机械制造工艺学中的基本理论，并结合生产实习中学到的实践知识，独立地分析和解决工艺设计问题，初步具备了设计一个中等复杂零件（杠杆）的工艺规程的能力和运用夹具设计的基本原理和方法。在完成夹具结构设计的同时，也是熟悉和运用有关机械夹具设计手册、图表、网络等技术资料及编写技术文件等基本技能的一次全面实践机会。关键词：工序；切削用量；夹紧；定位；定位误差AbstractThedrillclampbodyprocessingtechnologyanddrillingfixturedesignprocessdesign,includingmachiningprocessdesignandfixturedesign,thethreepart.Intheprocessofdesignshouldfirstunderstandtheanalysisofparts,partsoftheprocessinthedesignofblankstructure,andchoosethegoodcomponentstheprocessingdatum,designstheprocessroutesoftheparts;theneachlaborsteponthepartoftheprocessofsizecalculation,isthekeytodecidethecraftequipmentandthecuttingofvariousprocessparameters;thenforthedesignofspecialfixture,thefixtureselectionforthevariouscomponentsofthedesign,suchasthepositioningelement,theclampingelement,aguideelement,clampisconnectedwiththemachinespecificcomponentsandothercomponents;thecalculatederrorproducedbythepositioningfixture,analysistherationalityandshortcomingoffixturestructureisimproved,andinlaterdesign.Thisdesignallowsustousethecomprehensivehighschoolthroughuniversitycourses,suchasmechanicaldrawing,theoreticalmechanics,materials,mechanicaldesigntechnologyinfrastructure,machinerymanufacturingtechnology,machinerymanufacturingtechnologyinthebasictheory,combinedwithproductionpracticelearnedpracticalknowledge,independentanalysisandproblemsolvingprocessdesign,initiallywiththebasicprinciplesandmethodsoftheabilitytodesignamoderatelycomplexparts(leverage)processplanninganduseoffixturedesign.Incompletefixturedesign,itisalsofamiliarwiththeuseofthemachineryandfixturedesignmanuals,diagrams,networks,andothertechnicalinformationandbasicskillstopreparetechnicaldocumentssuchascomprehensivepracticeopportu