1、 减速箱体机械加工工艺及夹具设计 学生姓名： 学生学号： 院（系） ： 机电工程学院 年级专业：2004 级机械设计制造及其自动化 指导教师： 二八年六月 I 摘 要 箱体零件是一种典型零件，其加工工艺规程和工装设计具有典型性。该箱体 零件结构复杂，零件毛坯采用铸造成形。在加工过程中，采用先面后孔的加工路 线，以保证工件的定位基准统一、准确。为了消除切削力、夹紧力、切削热和因 粗加工所造成的内应力对加工精度的影响，整个工艺过程分为粗、精两个阶段。 通过被加工零件的分析完成了机械加工工艺的设计及各加工工序机动时间的计 算。根据箱体零件的结构及其功能，运用定位夹紧的知识完成了夹具设计。 关键词 箱
2、体，工艺，夹具 II ABSTRACT This box machine element is typical, the manufacturing process and tooling design of it is typical.The structure of this box machine element is complicated, the machine elements blank adopt casting shape. In the process of manufacture, in order to ensure th -e location datum accu
3、rate and unity, I adopt the manufacturing line from face to hole.In order to clear away the influence for machining accurate of internal stress, cutting force, clamping force, heat in cutting from coarse manufacturing, the whole manufacturing pro -cess is made of coarse and accurate manufacturing. P
4、arts were processed through the a -nalysis of the complete machining process design and the manufacturing processes for mobile time calculations. According to the box components and the function and structu -re, the use of the knowledge positioning clamp completed the fixture design. Key words Box machine，Processing，Jig III 目 录 摘摘 要要 I ABSTRACT. II 1 绪论绪论 1 1.1 1.1 课题背景课题背景 .1 1.2 1.2 制订工艺规程的意义与作用及其基本要求制订工艺规程的意义与作用及其基本要求 1 1.3 1.3 夹具的设计夹具的设计1 2 零件的分析零件的分析 2 2.
