内容发布更新时间 : 2024/4/28 14:12:18星期一 下面是文章的全部内容请认真阅读。
西安航空职业技术学院
毕业设计论文
摘 要
随着机械制造业的不断发展，社会对生产率的要求也越来越高，因此，大批量生产成为时代的需求，而组合机床就可以满足这一需求，我们有必要来研究他。另外，支架是主要起支撑作用的构架，承受较大的力，也有定位作用，使零件之间保持正确的位置。因此支架加工质量直接影响零件加工的精度性能，我们有必要对其进行研究。
机械制造毕业设计涉及的内容比较多，它是基础课、技术基础课以及专业课的综合，是学完机械制造技术基础（含机床夹具设计）和全部专业课，并进行了实训的基础上进行的，是我们对所有课程的一次深入的综合性的总复习，也是一次理论联系实际的训练，因此，它在我们三年大学生活中占有重地位。
本次毕业设计使我们能综合运用机械制造的基本理论，并结合生产实践中学到的技能知识，独立地分析和解决工艺问题，初步具备设计一个中等复杂程度零件（支架）的工艺规程的能力和运用夹具设计的基本原理和方法，拟定夹具设计方案，完成夹具结构设计的能力，也是熟悉和运用有关手册、图表等技术资料及编写技术文件等基本技能的一次实践机会。
关键字：机械制造；毕业设计；零件；
西安航空职业技术学院
毕业设计论文
ABSTRCT
With the continuous development of mechanical manufacturing,
society is becoming more and more high to the requirement of
productivity, therefore, the mass production as the demand of The Times, and the modular machine tool can meet the demand, it is necessary for us to study him. In addition, the fabric of the bracket is the main
supporting role, bear greater force, also has the role positioning, kept between parts in the right place. Therefore support the processing
quality directly affects the precision of parts processing performance, it is necessary for us to study.
Machinery manufacturing as the content of graduation design is more, it is a basic course, integrated technology basic course and
specialized course, is to learn the mechanical manufacturing technology base (including machine tool fixture design) and all specialized courses, and on the basis of the practice, it is our of all courses a total review of in-depth comprehensive, is also a theory with practical training, therefore, it has heavy in our three years of university life.
The graduation design enables us to the basic theory of the
integrated use of machinery manufacturing, learned skills, knowledge and combined with production practice, independently analyze and solve process problems, a preliminary design with a moderately complex parts (stent) process planning ability and by using the basic principle and method of fixture design, draw up jig design, complete the ability of
fixture design, is familiar with and use the relevant manuals, charts, and other technical data and writing technical documents such as a chance to practice basic skills.
Keywords: Mechanical manufacturing; Graduation
西安航空职业技术学院
毕业设计论文
design; parts
目 录
序言…………………………………………………………………1 一. 零件分析 ……………………………………………………2
1.1 零件作用 ………………………………………………2 1.2零件的工艺分析 …………………………………………2 二. 工艺规程设计…………………………………………………3
2.1确定毛坯的制造形式 ……………………………………4 2.2基面的选择 ………………………………………………4 2.3制定工艺路线 ……………………………………………6 2.4机械加工余量、工序尺寸及毛坯尺寸的确定 …………8 2.5确定切削用量及基本工时 ………………………………9 三 夹具设计 ……………………………………………………12
3.1问题的提出………………………………………………12 3.2定位基准的选择…………………………………………12 3.3切削力及夹紧力计算……………………………………13 3.4定位误差分析……………………………………………16 3.5夹具设计及简要操作说明………………………………16 总 结………………………………………………………………19 致 谢………………………………………………………………21 参考文献 …………………………………………………………22