气门摇杆轴支座零件机械加工工艺及其典型夹具设计.doc

本科毕业设计(论文)
题目:气门摇杆轴支座零件机械加工工艺及其典型夹具设计
气门摇杆轴支座零件机械加工工艺及其典型夹具设计
摘要
气门摇杆轴支座是柴油机一个重要零件,是柴油机摇杆座的结合部。本毕业设计在气门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。并完成了铣削和车削以及钻孔夹具的设计,阐述了定位方案的选择、夹紧方案的确定、夹具体设计,运用AutoCAD完成了此典型夹具的装配图和夹具体的零件图。本设计的加工工艺合理,夹具可行、高效、省力,能满足零件的加工要求,保证其加工质量。
关键词:气门摇杆轴支座;机械加工;加工工艺;典型夹具
Bearing Parts Machining Process Valve Rocker Shaft and Its Typical Fixture Design
Abstract
Valve rocker shaft bearing is an important part of the diesel engine, is bination of diesel engine rocker seat. This graduation design in valve rocker shaft bearing process design process, a detailed analysis of the process of the rocker shaft bearing, meet the technical requirements of the process was obtained through parison and analysis of the process, forming a machining process card and machining process card. And finish milling and turning and drilling fixture design, elaborated the localization scheme selection, clamping scheme, clamp design, AutoCAD is used plete the assembly drawing of this typical fixture and clamp parts map specific. Processing technology of the design is reasonable, feasible, high efficiency, labor saving fixture, can meet the processing requirements of parts, ensure the machining quality.
Key Words: valve rocker shaft bearing; mechanical processing; processing
technology; typical jig
目录
1绪论 1
1
2
3
2零件的分析 5
5
5
6
6
3机械加工工艺规程设计 8
8
8
9
9
、工序尺寸及毛坯尺寸的确定 10
、夹、量具 11
11
4铣50底面的夹具设计 19
19
20
20
20
20
20
22
23
5粗车、半精车、精车Φ 32两端面的夹具设计 24
24
25
25
25
25
25
25
6钻2×Φ13通孔夹具设计 26
26
27
2