A-3-零件图三维
KST1002换挡拨叉的加工工艺及铣19上端面夹具设计
摘要
伴随制造业的飞速发展，夹具的设计及制作也迎来了其发展的春天。夹具是零件加工的夹紧装置，是加工零件的一种必不可少的装置。夹具利用率高，经济性好，对功能组件的使用和数量少。在设计专用夹具时要考虑工件的定位方案，工件的夹紧方案和设计夹紧机构，夹具的其他组成部分，夹具的结构形式等。
本次设计的题目是KST1002换挡拨叉的加工工艺及铣19上端面夹具设计。由于该零件需要大批量生产，所以设计一个铣床专用夹具，保证零件的加工质量。专用夹具的利用率高，经济性好，使用元件的功能强并且数量少，配套费用低，降低了生产成本；采用夹紧装置，缩短停机时间，提高生产效率。
完成夹具的所有设计后，用AutoCAD进行二维图的绘制，首先画零件图、毛坯图，然后绘制装配图及夹具体零件图等。标注相关尺寸及技术要求，最后进行说明书的撰写、整理、修改完成该课程设计，达到了教学要求。为以后的学习和工作夯实了基矗
关键词：KST1002、换挡拨叉、工艺、19上端面、夹具
Abstract
With the rapid development of manufacturing industry, the design and manufacture of jig also greeted its development in spring. Jig is the clamping device for parts processing,which is an essential device for processing parts. The fixture has the advantages of high utilization rate, good economy, and less use and quantity of functional components. When designing the special fixture,we should consider the positioning scheme of theworkpiece, the clamping scheme of theworkpiece and the design of the clamping mechanism, other parts of the fixture, the structure of the fixture and so on.
The theme of this design is KST1002 shifting fork processing technology and milling 19 upper end fixture design. Because the part needs mass production, a special fixture for milling machine is designed to ensure the processing quality of the part. The special fixture has the advantages of high utilization rate, good economy, strong function and small quantity of components, low matching cost, and low production cost. The clamping device can shorten the downtime and improve production efficiency.
After all the fixture designs are completed, the two-dimensional drawings are drawn by AutoCAD. Firstly, the part drawings and the blank drawings are drawn, then the assembly drawings and the fixture parts drawings are drawn. Label the relevant size and technical requirements, and finallywrite, collate, modify the instructions to complete the course design, to meet the teaching requirements. It lays a solid foundation for future study andwork.
Keywords: KST1002, shift fork, process, 19 upper end face, jig
目录
摘要I
Abstract II
1绪论1
1.1机床夹具的发展1
1.2机床夹具设计的基本要求1
2零件分析及毛坯的选择2
2.1零件的作用2
2.2零件分析3
2.2.1组成表面3
2.2.2技术要求3
2.2.3形位公差3
2.3毛坯的选择4
2.3.1选择毛坯的原则4
2.3.2零件毛坯的选择及制造方法4
3拟定工艺路线6
3.1定位基准的选择6
3.1.1粗基准的选择6
3.1.2精基准的选择6
3.2加工工艺路线选择、比较与确定7
3.3加工设备、夹具、刀具及量具的选择8
4加工余量、切削用量及切削时间的确定11
4.1加工余量的确定11
4.2切削用量及切削时间的确定13
5铣削19上端面夹具设计30
5.1定位方案的确定30
5.2定位元件的确定30
5.3夹紧方案的确定31
5.4夹紧元件的确定32
5.5夹具体的确定32
5.6导向装置的确定33
5.7铣削力的计算33
5.8夹紧力的计算34
5.9定位误差分析34
结论35
致谢36
参考文献37
A-4-夹具三维装配图
A-5-毛坯图A2
A-6-零件图A2
A-7-夹具装配图A0
A-8-夹具体A2
工序图（全套）
A-2-所包含文件预览
过程卡
夹具设计部分
A-1-字数统计
工序卡
计算部分预览
说明书前三页
