后钢板弹簧吊耳加工工艺及夹具设计全套毕业设计

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后钢板弹簧吊耳加工工艺及夹具设计全套毕业设计ABSTRACT
The design of the plate after spring lug parts of the processing order of the processes and some special fixture design. Spring plate after hanging parts of the main plane of the surface and pore. By the principle known Processing ， the plane guarantee precision machining holes than guarantee the machining precision easy. So the design follows the surface after the first hole principle. Plane with holes and the processing clearly divided into roughing and finishing stages of processing to ensure accuracy. After selecting base plate spring lug large cylindrical face as a rough benchmark， After the leaf spring lug large cylindrical end with two holes as a precision technology benchmarks. main processes arrangements after the first spring plate lug large cylindrical face each other benchmarks machined face， End position to further processing out of holes. In addition to the follow-up processes are individual processes with end-positioning technology and other processing Kong and plane. The entire process of processing machine combinations were selected.

Key words The empress steel plate spring coil mourns the ear，Process the craft，Appropriation tongs

目 录

摘 要 Ⅰ
ABSTRACT II
目录 1
1绪 论 1
2 后钢板弹簧吊耳加工工艺规程设计 3
2.1零件的分析 3
2.1.1零件的作用 3
1.1.2零件的工艺分析 3
2.2工艺过程设计所应采取的相应措施 4
2.3后钢板弹簧吊耳加工定位基准的选择 4
2.3.1 确定毛坯的制造形式 4
2.3.2粗基准的选择 4
2.3.3精基准的选择 5
2.4 工艺路线的制定 5
2.4.1 工艺方案- 5
2.4.2 工艺方案二 5
2.4.3 工艺方案的比较与分析 6
2.5机械加工余量、工序尺寸及毛坯尺寸的确定 6
2.6确定切削用量及基本工时（机动时间） 7
2.7时间定额计算及生产安排 16
2.8 本章嗅 18
3 粗铣后钢板弹簧吊耳内侧端面夹具设计 19
3.1粗铣后钢板弹簧吊耳内侧端面夹具设计 19
3.2定位方案的分析和定位基准的选择 19
3.3定位误差分析 19
3.4铣削力与夹紧力计算 20
3.5定向键与对刀装置设计 21
3.6夹紧装置及夹具体设计 23
3.7夹具设计及操作的简要说明 24
3.8本章嗅 24
4 加工工艺孔夹具设计 25
4.1加工工艺孔夹具设计 25
4.2定位方案的分析和定位基准的选择 25
4.4切削力的计算与夹紧力分析 26
4.5钻套、衬套、钻模板及夹具体设计 26
4.6夹具精度分析 28
4.7夹具设计及操作的简要说明 28
4.8本章嗅 29
5 加工工艺孔夹具设计 30
5.1加工工艺孔夹具设计 30
5.2定位方案的分析和定位基准的选择 30
5.3定位元件的设计 30
5.4定位误差分析 32
5.5切削力的计算与夹紧力分析 32
5.6钻套、衬套、钻模板及夹具体设计 32
5.7夹具精度分析 34
5.8夹具设计及操作的简要说明 34
5.9本章嗅 35
结 论 36
参 考 文 献 37
致 谢 38