基于固定支架工艺及钻Φ6mm孔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。支架加工工艺规程及其铣右端面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、误差。第1页共41页AbstractThis design involves the knowledge of mechanicalmanufacturing process and fixture design,metal cuttingmachine tool,tolerance matching and measurement,etc.The process specification of support and the fixture designfor milling the right end face are three parts:the processdesign,the working procedure design and the special fixturedesign.In the process design must first analyze the parts,understand the parts of the process to design the structureof the blank,and choose a good part of the processingbenchmark,design the parts of the process line;Thencalculate the size of each working procedure of the parts,the key is to determine the process equipment and cuttingparameters of each working procedure;Then carry on thedesign of the special fixture,select and design eachcomponent of the fixture,such as the positioning element,clamping element,guiding element,clamping specificconnection parts and other parts with the machine tool;Thepositioning error is calculated,and the rationality anddeficiency of fixture structure are analyzed.Keywords:process,working procedure,cutting parameters,clamping,positioning,error.目录序言.................21.1零件的作用21.2零件图21.3零件的工艺分析2.1确定毛坯的制造形式..2.2毛坯图及其加工余量2.3表面加工方法的确定32.4基面的选择的选择42.5制定工艺路线..42.6各工序加工设备、刀具、量具选用2.8确定切削用量及基本工时....333.1基准的选择.·.343.2夹具三维图3536第1页共41页