00零件尺寸
摘要
拨叉的加工工艺和夹具设计包括零件加工工艺设计、工序设计和专用夹具的设计三部分。在设计的过程中应该首先理解的分析部分,部分工序的设计一个毛坯的结构,并选择好零件的加工基准,设计出零件的工艺路线;然后每个工序切削力的部分步骤大小计算,是决定工艺的关键设备和过程的各种设计参数,然后一个专用夹具,夹具选择各种组件的设计,如定位和夹紧元素连接部分,指导元素,夹具和机床和其他组件,定位误差计算夹具,分析夹具结构的合理性和不足之处,并注重未来的改善设计。最后,做一些地方的编译过程和编程过程。
关键词：拨叉工艺规程；定位；压紧；导向，夹具，误差
Abstract
Machining process and fixture design of the fork, including parts processing process design, process design and the design of special fixture three parts. In the process of design should first understand the analysis of parts, parts of the process to design a blank structure, and choose the good components the processing datum, designs the process routes of the parts; then the parts of each labor step process size calculation, is the key to decide the craft equipment and the cutting process of the various design parameters; then a special fixture, the fixture selection for the various components of the design, such as connecting parts positioning elements and clamping elements, guide element, fixture and machine tool and other components; positioning error is calculated when the fixture, analysis the rationality and shortcoming of fixture structure, and pays attention to the improvement in future design. Finally, do some parts of the compilation process and programming procedure.
Key words: end cover procedure; Positioning; Pressure; Guide, fixture, error
目录
摘要I
Abstract 1
第一章零件的分析3
1.1零件的作用3
1.2零件的工艺分析3
第二章毛坯的确定5
2.1确定毛坯的制造形式5
2.2毛坯形状及尺寸6
第三章拟定加工工艺路线7
3.1基准的选择7
3.1.1粗基准选择7
3.1.2精基准的选择7
3.2制定工艺路线8
第四章零件加工工序设计9
4.1粗铣25mm高度尺寸9
4.2精铣25mm高度尺寸9
4.3钻2×Φ20mm孔10
4.4粗车Φ52mm孔11
4.5钻Φ8mm孔，留量0.2mm 11
第五章夹具设计13
5.1问题的提出13
5.2定位基准的选择13
5.3定位的基本原理13
5.4定位元件的设计14
5.5夹紧装置的设计14
5.6切削力及夹紧力计算14
5.7定位误差分析15
5.8夹具设计及操作简要说明15
总结16
致谢18
参考文献19
夹具装配图
夹具体
零件图
毛坯图
