WH212减速器箱体加工工艺及夹具设计.doc

编号： 毕业设计说明书 题 目： WH212减速器箱体加工工艺 及夹具设计 学 院： 机电工程学院 专 业： 机械设计制造及其自动化 学生姓名： 学 号： 指导教师： 职 称： 教授 题目类型： (理论研究 (实验研究 (工程设计 (工程技术研究 (软件开发 2012年 5 月 27 日 摘 要 此毕业设计减速器箱体，主要设计任务有第一加工工艺规程的设计；第二箱体。在加工工艺规程设计中，首先零件进行析零件的材料生产及来确定毛坯的制造形式，其次加工工艺路线，最后进行、工序尺寸及切削用量等的计算与确定。在设计中，首先根据工序的特点来进行定位的选择，其次进行切削力及夹紧力的计误差分析。关键词：工艺规程定位夹具Abstract Main target of this graduation project is WH212 gear case. There are two parts in the main design task: first design the reduction case planning process; the other is dedicated fixture design for part of the process steps. In the process planning programming, structural analysis should be the first; this section includes technical requirements and stock materials. After these preconditions determined, we should determine the rough form of manufacturing combine part of the material, production quantity and the actual production, and then second select the processing benchmarking process route.Finally, calculation and determination the allowance, process size, and cutting parameters.It need the designer have enough ability to design proper mechanical process and assembling process. During the special fixture design, first select the positioning method, reference the before and after processing characteristics, followed is the clamping method, and finally are cutting clamping force calculation and error analysis .There it need to design two fixtures,fixture for boring and fixture for drilling. With reference the fixture atlas to choose a clamping project, and transfer fixture component from the component library, look up to find the standard size, or to design. All of work concentrative reflect in process card and fixture installation?diameter, especially in make a process card, it need maching in a process picture of each step and chooses