1、毕业设计(论文) 第 1 页 共 44 页 摘要摘要 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:关键词: 工序,工艺,工步,加工余量,定位方案,夹紧力 毕业设计(论文) 第 2 页 共 44 页 ABSTRACTABSTRACT Enable p
2、roducing 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 th
3、e 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, t
4、he 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. Keywords: The process, worker one, workers step , the surplus of processing, orient the scheme , clamp strength 毕业设计(论文) 第 3 页 共 44 页 目录目录 绪论 5 第一章 零件的分析 7 1.1 零件的形状 7 1.2 零件的工艺分析 9 第二章 毛坯设计 11 2.1 毛坯的选择 11 2.2 毛坯尺寸和公差 12 2.2.1 确定毛坯尺寸 . 12 2.2.2 确定毛坯尺寸公差 . 12 2.3 设计毛坯图 1