杠杆（一）加工工艺及铣24mm槽夹具设计【CAD图纸和全套说明书】

摘要

机械制造技术基础课程设计是我们学完了大学的全部基础课、技术基础课以及大部分专业课之后进行的.这是我们在进行毕业设计之前对所学各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,得到解决问题和分析问题能力的初步培养，因此,它在我们四年的大学生活中占有重要的地位。

就我个人而言，我希望能通过这次课程设计对自己未来将从事的工作进行一次适应性训练，从中锻炼自己分析问题、解决问题的能力，为今后参加祖国的“四化”建设打下一个良好的基础。

Abstract

After the machine manufacture technology base curriculum project was we studies university's complete basic course, the technical basic course as well as the majority of professional courses, carried on. This is we before carrying on the graduation project to studies various curricula a thorough comprehensive total review, is also a apply theory to reality training, is solved the problem and the analysis question ability preliminary raise, therefore, it holds the important status in we four year university life.

To my own opinion, I hoped that can the work which own will be engaged in the future carry on an adaptability training through this curriculum project, Exercises itself to analyze the question, to solve the question ability, will participate in the motherland for the present “the Four Modernizations” the construction to build a good foundation.

目录

1杠杆的工艺性分析1

1.1杠杆的用途1

1.2杠杆的技术要求1

1.3确定杠杆的生产类型1

2、确定毛坯，绘制毛坯简图1

2.1选择毛坯1

2.2确定铸造杠杆毛坯尺寸公差及机械加工余量2

2.2.1公差等级2

2.2.2 铸件重量2

2.2.3铸件的材质系数2

3拟定工艺路线3

3.1选择定位基准3

3.1.1粗基准的选择3

3.1.2精基准的选择3

3.1.3表面加工方法的确定3

3.2拨叉零件各表面加工方案及加工余量4

3.3确定工艺路线4

3.4确定切削用量，时间定额5

3.4.1切削用量的计算5

3.4.2时间定额的计算6

4夹具设计7

4.1定位基准选择7

4.2定位元件的选择7

4.3夹具设计及操作的简要说明7

4.4 定位误差分析7

4.5夹具设计及操作的简要说明12

5设计新得13

参考文献15