设计简介
目 录
目 录............................................................ II摘要............................................................... I
ABSTRACT.......................................................... II
第1章 序言........................................................ 1
1.1 后钢板弹簧吊耳机械加工工艺简述............................... 1
1.2后钢板弹簧吊耳机械加工工艺流程................................ 1
1.3后钢板弹簧吊耳夹具简述........................................ 1
1.4机床夹具的功能................................................ 2
1.5机械工艺夹具的发展趋势........................................ 2
1.5.1机床夹具的现状............................................ 2
1.5.2现代机床夹具的发展方向.................................... 2
第2章 后钢板弹簧吊耳加工工艺规程设计.............................. 4
0................................................................ 4
.1后钢板弹簧吊耳零件的分析....................................... 4
2.1.1零件的作用................................................ 4
2.1.2零件的工艺分析............................................ 4
2.2工艺过程设计所应采取的相应措施................................ 5
2.3后钢板弹簧吊耳加工定位基准的选择.............................. 5
2.3.1 确定毛坯的制造形式....................................... 5
2.3.2后钢板弹簧吊耳零件粗基准的选择............................ 5
2.3.3后钢板弹簧吊耳零件精基准的选择............................ 6
2.4 工艺路线的制定............................................... 6
2.4.1 工艺方案一............................................... 6
2.4.2 工艺方案二............................................... 6
2.4.3 工艺方案的比较与分析..................................... 7
2.5后钢板弹簧吊耳加工余量、工序尺寸及毛坯尺寸的确定.............. 7
2.6确定切削用量及基本工时（机动时间）............................ 9
2.7时间定额计算及生产安排....................................... 21
2.8 本章小结.................................................... 23
第3章 加工钻2-Ø30孔液动夹具设计................................. 24
3.1后钢板弹簧吊耳的设计要求..................................... 24
3.2后钢板弹簧吊耳的夹具设计..................................... 24
3.2.1 定位基准的选择......................................... 24
3.2.2 切削力及夹紧力的计算................................... 24
3.3后钢板弹簧吊耳夹具定位误差的分析............................. 27
3.4 后钢板弹簧吊耳夹具中钻套、衬套、钻模板设计与选用............ 27
3.5 确定后钢板弹簧吊耳的夹具体结构和总体结构.................... 29
3.6后钢板弹簧吊耳的夹具设计及操作的简要说明..................... 30
第4章 定位心轴工艺设计........................................... 31
4.1确定定位心轴的图纸........................................... 31
4.2 制定工艺路线................................................ 31
4.3 确定切削用量及基本工时...................................... 32
结论.............................................................. 38
致谢.............................................................. 39
参考文献.......................................................... 40
摘要
本次设计是工艺规划和一些特殊夹具设计过程的后板簧吊耳部分。由该过程已知原理，以确保比保证精密加工精度的孔容易的平面。因此，这种设计遵循的表面上的第一孔后的原则。过程并清除孔和平面分为粗加工和精加工阶段，以确保准确性。选择参考钢弹簧吊耳大圆柱端面作为粗基准，钢板弹簧吊耳端和两个大型圆柱孔作为精细的工艺基准后后。板簧配置后的主要处理步骤是基端彼此面对，然后面对取向工艺加工的孔的第一大圆柱形凸耳加工端面。在随后的步骤中，除了个别流程是空穴定位技术与面部和其他孔加工平面之外。整个过程是被选中的工具组合。关键词：后钢板弹簧吊耳零件，加工工艺，专用夹具
ABSTRACT
This design is a rear spring parts of process planning and special fixture design process. The main processing surface parts rear leaf spring is flat and hanging hole. By the process known principles, to ensure the plane than the guaranteed precision machining precision holes easily. Therefore, after leaf spring lug end and two large cylindrical hole as a fine craft benchmark. The main processing steps after the leaf spring arrangement is the first large cylindrical lug machined end face of the base end face each other, and then to face orientation process machined holes. in addition to individual processes are outside the hole positioning technology with face and other hole machining plane.Keywords: rear leaf spring lug, processing, special fixtures
