车床衬套加工工艺及关键工序工装设计

Baidu NhomakorabeaKeywords:
Bushing Fixture
Frock
Modular Machine Tool
本 科 毕 业 设 计 说 明 书（ 论 文 ）
目 录
第 2 页 共 24 页
1 绪论................................................................................................................. 3 1.1 毕业设计的目的及要求 ................................................................................. 3 1.2 加工工艺规程的概念及作用 .......................................................................... 3 1.3 夹具的用途及分类 ........................................................................................ 4 1.4 组合机床概述 ............................................................................................... 4 2 零件的分析 ...................................................................................................... 6 2.1 零件的作用 ................................................................................................... 6 2.2 零件的工艺分析 ............................................................................................ 6 3 工艺规程设计 .................................................................................................. 7 3.1 确定毛坯的制造形式..................................................................................... 7 3.2 基准的选择 ................................................................................................... 7 3.3 制定工艺路线 ............................................................................................... 7 3.4 机械加工余量、工序尺寸及毛皮尺寸的确定 ................................................. 8 3.5 确立切削用量及基本工时 ............................................................................. 9 4 夹具设计 ....................................................................................................... 15 4.2 定位元件的选择 .......................................................................................... 15 4.3 夹紧机构的设计 .......................................................................................... 15 4.4 夹具设计的相关计算和分析 ........................................................................ 16 5 组合机床设计 ................................................................................................ 18 5.1 组合机床总体设计 ...................................................................................... 18 结束语................................................................................................................. 24 致谢 .................................................................................................................... 25 参考文献 ............................................................................................................. 26
本科毕业设计说明书（论文） 摘要
第 I 页 共 I 页
衬套是起衬垫作用的环套 ， 衬套常用做转轴的支撑，相当于一个滑动轴承，要 求很好的耐磨性，加工精度尤其是表面粗糙度要求较高，材质常用锡青铜等铜合金。 衬套在机械行业应用非常广泛。车床衬套是在车床的轴上起衬垫和密封作用的环套。 CA6140 车床衬套所用材料是 45 钢，它是车床中的关键零件之一，生产量比较大。 为了保证产品质量，提高加工效率，需要对其加工工艺进行优化设计，并在关键工序 使用组合机床或专用机床进行加工。
关键词 衬套
夹具
工装
组合机床
本 科 毕 业 设 计 说 明 书（ 论 文 ）
Abstract
第 1 页 共 24 页
Bush is the role of the ring from liner kits, Bush used to do the support shaft, which is equivalent to a sliding bearing, require a very good resistance to abrasion, machining accuracy, especially the higher surface roughness, material used, such as copper bronze alloy. Bush in a wide range of machinery applications. Bushing lathe axis in the liner and sealed from the role of the ring sets. CA6140 lathe bushing material is 45 steel, it is a lathe, one of the key parts, a larger production volume. In order to ensure product quality, improve processing efficiency, the need to optimize their design process and key process in the use of combination or special machine tools for processing.