齿轮泵泵体的加工工艺与专用夹具设计.doc

哈尔滨工业大学工学硕士学位论文大连交通大学2013届本科生大学毕业设计（论文）-PAGEII-PAGE-49---齿轮泵泵体的加工工艺与专用夹具设计摘要本次设计内容涉及了机械制造工艺及机床夹具设计、金属切削机床、公差配合与测量等多方面的知识。泵体加工工艺规程及其铣削、钻孔的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，了解零件的工艺再设计出毛坯的结构，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；然后进行专用夹具的设计，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它部件；计算出夹具定位时产生的定位误差，分析夹具结构的合理性与不足之处，并在以后设计中注意改进。关键词工艺、工序、切削用量、夹紧、定位GearpumpbodyprocessandspecialfixturedesignAbstractThisdesigncontenthasinvolvedthemachinemanufacturecraftandtheenginebedjigdesign,themetal-cuttingmachinetool,thecommondifferencecoordinationandthesurveyandsoonthevariousknowledge.Bodyprocessplanninganddrillingfixturewasdesignedtoincludepartmachiningprocessdesign,processdesign,anddedicatedfixturedesignofthreeparts.Inprocessdesign,analysisofthepartmustfirstunderstandthepartsoftheprocessre-engineeringthestructureofablank,andselectagoodpartoftheprocessingofthebasetodesignpartsprocessroute;followedbythevariousworkingstepsonthepartoftheproceduresforthesizeofthecalculation,thekeyistodeterminethevariousstagesofworkoutofprocessequipmentandcuttingconsumption;thendedicatedfixturedesign,selectionofdesignoutofallthecomponentpartsfixture,suchasthepositioningcomponents,clampingcomponents,guidingelements,thespecificfolderconnectionwiththemachinepartsandothercomponents;calculatethepositioningfixturepositioningerrorgenerated,analysisfixturestructureisreasonableanddeficiencies,andattentiontoimprovingthedesigninthefuture.Keywords：Thecraft、theworkingprocedure、thecuttingspecificationsclamp、thelocalization不要删除行尾的分节符，此行不会被打印PAGEII---4-目录摘要1Abstract2TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc326565313"第1章绪论PAGEREF_Toc326565313\h错误！未定义书签。HYPERLINK\l"_Toc326565314"1.1课题背景PAGEREF_Toc326565314\h错误！未定义书签。HYPERLINK\l"_Toc326565315"第2章零件的分析PAGEREF_Toc326565315\h2HYPERLINK\l"_Toc326565316"2.1零件的作用PAGEREF_Toc326565316\h2HYPERLINK\l"_Toc326565317"2.2零件的工艺分析PAGEREF_Toc326565317\h错误！未定义书签。HYPERLINK\l"_Toc326565318"第3章工艺规程设计PAGEREF_Toc3265