机械 毕业设计 论文 课程设计

摘要：
汽缸盖是发动机的几大关键之一，零件尺寸较小，但结构形状复杂，有若干精度要求较高的平面和孔系。这里主要分析和设计的是汽缸盖零件的加工工艺和生产流水线、专用夹具等。通过查阅各种相关书籍，分析缸盖的结构及其功能，编写了缸盖零件的加工工艺；经过计算选择其切削用量、选择机床和工艺设备，设计出了专用夹具和生产流水线。
关键词：加工工艺，缸盖，专用夹具。

Summary:
The cylinder cover is one of several toll-gates to launch the machine keys, the spare parts size is smaller, but the construction shape is complicated, how many the accuracy request the higher flat surface with the bore department. Analyze primarily here with design of is a cylinder cover the spare parts processes the craft with produce flowing water line, appropriation tongs etc..Pass to check every kind of related book, analyze construction and its functions of an urn of covers, weave to write a cover spare parts process the craft; Passing by the calculation chooses its slice the dosage of cut, choice machine bed with craft equipments, design appropriation tongs with produce the flowing water line.
Key word: Process the craft, cover, appropriation tongs.

目录
前言 1
第一章  缸盖零件的加工工艺过程分析 2
1．1确定生产类型与毛坯 2
1．2确定加工面与非加工面 2
1．3确定加工方法与精度 3
1．4确定定位基准和工序分析设计 5
1．5确定加工余量 8
第二章  缸盖的加工流水线设计 9
2．1确定切削用量和时间定额 9
2．1．1平面加工切削用量和时间定额 9
2．1．2孔加工切削用量和时间定额 14
2．2选择机床的计算和刀具 35
2．2．1平面加工机床的选择计算 35
2．2．2孔加工机床的选择计算 37
2．3选用机床与工艺设备 50
2．3．1机床的选择 50
2．3．2选择夹具 50
2．3．3选择刀具 50
2．3．4量具的选择 50
2．4生产流水线的布局 51
2．4．1确定生产节拍 51
2．4．2生产流水线的安排 51
第三章  铰排气孔侧导管孔专用夹具设计 52
3．1确定夹具类型 52
3．2定位装置的设计 52
3．2．1确定定位方案 52
3．2．2选择定位元件 52
3．2．3确定定位机构 53
3．2．4定位误差分析 53
3．3夹紧装置的设计 55
4．4导向装置的设计 55
结论 55
附录 57
参考文献 58