摘 要
随着社会的发展、科技的进步，机械行业对专业人才的需求在不断变化，特别是随着数控技术的应用和先进设备的增加，对既有扎实专业理论基础，有会动手的职业技术人才需求越来越多。所以为了深化课程学习，机械课程设计这门课显得特别的重要。通过课程设计这一事件环节，是学生更好地理解和掌握课程的基本理论和方法，进一步提高查阅技术资料、绘制零件图等能力。按照一个简单机械系统的功能要求，综合运用所学知识，并对其中某些机构进行分析和设计。
以设计为主线，分析为设计服务，立足点是机械系统的方案设计，是机械制造工艺与装备设计的新体系。
我们应该能综合运用机械制造工艺学中的基本理论，并结合生产实习中学到的实践知识，独立地分析和解决工艺问题，初步具备了设计一个中等复杂程度零件的工艺规程的能力，能熟练运用有关手册、图表等技术资料，进一步巩固识图、制图、运算和编写技术文件等基本技术，为今后的毕业设计及未来从事的工作打下良好的基础。
Abstract
With the development of the society, technological advances, the machinery industry demand for professionals is constantly changing, particularly as the application of numerical control technology and advanced equipment increases, on both a solid theoretical foundation, there are specialty will be hands-on technical talent demand more and more. So in order to deepen the course in mechanical design the course especially important. Through the course design of this event, the students better understand and master courses in basic theory and methods, further improving access to technical information, drawing parts, etc. According to a simple mechanical system of functional requirements, the knowledge, and on some of these organizations to carry out analysis and design.
To design the main line, analysis services for the design, the foothold is the design of the mechanical system, is the machinery manufacturing process and equipment design of the new system.
We should be using mechanical manufacture technology in basic theory, combined with production practice learned practical knowledge, independent analysis and problem-solving technological problems, preliminary design with a moderate part of the process of ability, skill for manuals, charts and other technical information, further consolidate the map reading, drawing, and writing technical documents, and other basic technology for future graduation and future work and lay a good foundation.
目录
1、法兰盘的工艺分析及生产类型的确定1
1.1、法兰盘的用途1
1.2、法兰盘的技术要求1
1.3、审查法兰盘的工艺性2
1.4、确定法兰盘的生产类型2
2、确定毛胚、绘制毛胚简图3
2.1选择毛胚3
2.2确定毛胚的尺寸公差和机械加工余量3
2.2.1公差等级3
2.2.2法兰盘铸造毛坯尺寸工差及加工余量3
2.2.3绘制法兰盘的毛坯简图4
3、拟定法兰盘工艺路线4
3.1、定位基准的选择4
3.1.1．精基准的选择4
3.2.2．粗基准的选择4
3.2 、表面加工方法的确定5
3.3、加工阶段的划分5
3.4、工序的集中与分散6
3.5、工序顺序的安排6
3.5.1机械加工工序6
3.5.2．热处理工序7
3.5.3．辅助工序7
3.6、确定工艺路线7
4、加工余量、工序尺寸和工差的确定8
5、切削用量、时间定额的计算9
5.1、切削用量的计算9
5.1.1钻孔工步9
5.1.2 粗铰工步9
5.1.3精铰工步10
5.2、时间定额的计算10
5.2.1．基本时间tj的计算10
5.2.2．辅助时间ta的计算11
5.2.3. 其他时间的计算12
5.2.4．单件时间tdj的计算12
6.夹具设计13
6.1提出问题13
6.2设计思想14
6.3夹具设计14
6.3.1定位分析14
6.3.2切削力及夹紧力的计算15
6.3.3夹具操作说明17
6.3.4确定导向装置18
7. 体会与展望19
8.参考文献20
川公网安备: 51019002004831号