减速机壳加工工艺及夹具设计_机械制造及自动化毕业设计.doc

内容摘要： 在生产过程中，使生产对象（原材料，毛坯，零件或总成等）的质和量的状态发生直接变化的过程叫工艺过程，如毛坯制造，机械加工，热处理，装配等都称之为工艺过程。在制定工艺过程中，要确定各工序的安装工位和该工序需要的工步，加工该工序的机车及机床的进给量，切削深度，主轴转速和切削速度，该工序的夹具，刀具及量具，还有走刀次数和走刀长度，最后计算该工序的基本时间，辅助时间和工作地服务时间。 关键词： 工序，工位，工步，加工余量，定位方案，夹紧力 Abstract : Enable producing the target in process of production (raw materials, the blank , state of quality and quantity on part become always ) take place direct course of change ask craft course, if the blank is made, machining, heat treatment , assemble etc. and call it the craft course. In the course of making the craft , is it confirm every erector location and worker step that process need this of process to want, the locomotive of processing , this process , and the entering the giving amount of the lathe, cut depth , the rotational speed of the main shaft and speed of cutting, the jig of this process, the cutter and measuring tool, a one hundred sheets of number of times still leaves and a one hundred sheets of length leaves, calculate basic time of this process , auxiliary time and service time of place of working finally. Keyword: The process, worker one, workers step , the surplus of processing, orient the scheme , clamp strength 目 录 摘要 Abstract ………………………………………………………………………………………..0 第一章 绪论……………………………………………………………………… 3 零件的工艺分析…………………………………………………………3 零件的工艺分析………………………………………………………… 3 确定毛坯的制造形式…………………………………………………… 3 箱体零件的工艺性……………………………………………………… 3 第三章 拟定箱体加工的工艺路线……………………………………………… 3 3.1 定位基准的选择……………………………………………………… 3 3.2 加工路线的拟定……………………………………………………… 4 第四章 加工余量，工序尺寸及毛坯尺寸的确定……………………………… 6 4.1 机盖……………………………………………………………………… 6 4.2 机座……………………………………………………………………… 7 4.3 机体……………………………………………………………………… 8 第五章 确定切削用量及基本工时……………………………………………… 9 5.1 机盖……………………………………………………………………… 9 机座……………………………………………………………………… 14 机体……………………………………………………………………… 23 夹具设计………………………………………………………………… 34 6.1 粗铣下平面夹具………………………………………………………… 34 6.2 粗铣前后端面夹具……………………………………………………… 36 参考文献 ………………………………………………………………………… 40 结论 ……………………………