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毕业设计(论文)
题 目 摇杆轴支座工艺规程与镗夹具设计
姓 名
学 号
专业班级 机自0501
所在学院 工程分院
指导教师(职称) (教授)
二○○九 年五 月 二十二日
浙江大学城市学院毕业论文 摘要
摇杆轴支座工艺规程与镗夹具设计
【摘要】 本次毕业设计课题是摇杆轴支座加工工艺规程与专用镗孔夹具设计,设计中综合应用了工程图学,机械设计,机械制造工程学,机械几何精度设计等相关课程知识。本毕业设计在摇杆轴支座工艺规程设计过程中,详细的分析了摇杆轴支座的加工工艺,通过工艺方案的比较与分析选择得到了符合技术要求的工序,形成了机械加工工艺过程卡和机械加工工序卡。本设计进行了镗孔专用夹具的设计,阐述了定位方案的选择、夹紧方案的确定、夹具体与镗模设计,运用AutoCAD完成了此专用夹具的装配图和夹具体的零件图。此外,还进行了摇杆轴支座零件的和镗夹具主要零件三维造型设计。
【关键词】 零件加工,工艺规程,镗孔,专用夹具,CAD
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浙江大学城市学院毕业论文 Abstract
Design of Process and Boring Fixture of
Rocker Shaft Pedestal
【Abstract】 The graduation design task is design of process and boring fixture of rocker shaft pedestal. This design is comprehensively applied the knowledge of correlated curriculum such as engineering graphic, mechanical design, mechanical manufacturing, engineering and mechanical geometry precision design. This graduation design detailed analysis process of rocker shaft pedestal. Process what is in keeping with technical requirements is selection through comparing and analyzing process scheme, to obtain the machinery process card and mechanical processes card. This design designed boring fixture of rocker shaft pedestal, expounds about the positioning scheme selection, determine the clamping schemes. Boring mould design and fixture pedestal design. Use AutoCAD completed the assembly of this special fixture and part drawing of fixture base. In addition, the 3-D modeling designs of the part of the rocker shaft pedestal. 【Key Words】 Parts processing,Process flow,Internal boring, Dedicated fixture,CAD ,
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浙江大学城市学院毕业论文 目录
目录
第1章 绪论 ........................................................................................................................... 1
1.1制工艺与夹具设计的发展概况 ............................................................................... 1 1.2机制工艺与夹具设计相关技术的国内外现状 ....................................................... 1 1.3选题意义和关键问题 ............................................................................................... 2
1.3.1 选题的背景 ................................................................................................... 2 1.3.2选题意义 ........................................................................................................ 2 1.3.2关键问题 ........................................................................................................ 3
第2章 机械加工工艺与夹具设计概述 ............................................................................... 4
2.1 机械加工工艺过程中的基本概念 .......................................................................... 4 2.2机械加工工艺规程设计的基本准则 ....................................................................... 4 2.3机床夹具概述 ........................................................................................................... 6 2.4 工件在夹具中的定位 ............................................................................................ 7 2.5工件在夹具中的夹紧 ............................................................................................... 7 第3章 摇杆轴支座机械加工工艺规程设计 ....................................................................... 9
3.1零件的图纸与工艺分析 ........................................................................................... 9
3.1.1零件的作用 .................................................................................................... 9 3.1.2零件的工艺分析 ............................................................................................ 9 3.2工艺规程定性设计 ................................................................................................. 10
3.2.2生产类型与毛坯制造方法的确定 .............................................................. 10 3.2.3定位基准的选择 .......................................................................................... 10 3.2.4工艺路线的拟定 ........................................................................................... 11 3.3工艺规程定量设计 ................................................................................................. 13
3.3.1机械加工余量、工艺尺寸及毛坯尺寸的确定 .......................................... 13 3.3.2切削余量及基本工时的确定 ...................................................................... 14 3.4 摇杆轴支座机械加工工艺过程 .......................................................................... 18
3.4.1摇杆轴支座机械加工工艺过程卡 .............................................................. 19 3.4.2摇杆轴支座机械加工工序卡 ...................................................................... 20
第4章 摇杆轴支座专用镗孔夹具设计 ........................................................................... 31
4.1镗夹具的结构形式与设计要点。 ......................................................................... 31
4.1.1镗床夹具的典型结构形式 .......................................................................... 31 4.1.2镗床夹具的设计要点 .................................................................................. 31
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