摘要：本设计中上阀体为批量生产，根据其批量加工工艺的特点，按照751点定位原理，主要设计能够装夹上阀体的专用夹具，便于加工两个φ18的螺栓孔时定位准确方便。在实际生产中常常发现仅用通用夹具不能满足生产要求，用通用夹具装夹工件生产效率低劳动强度大，加上质量不高，而且往往需要增加划线工序等等。本设计通过研究现在的一些专用机床和专用夹具，或是通用机床和通用夹具，设计出结构简单，能够装夹上阀体的专用夹具，并且便于加工两个φ18的螺栓孔时要定位准确方便。21244
通过对于夹紧力、切削力的计算，设计满足加工要求的专用机床。主要设计了便于加工两个对称φ18的螺栓孔的多轴箱。
毕业论文关键词： 上阀体；专用夹具；专用机床；多轴箱
2-φ18 hole on the valve plane and fixture design
Abstract： The design of the valve body mass, according to the characteristics of its batch processing, according to the six positioning principle, the main design can be clamped to the body of special fixtures, easy and accurate positioning to facilitate the processing of both φ18 of the bolt holes. Often found in the actual production is not only universal fixture meet production requirements, using a common workpiece clamping fixture low labor intensity of production efficiency, coupled with poor quality, and often need to increase the scribing step and so on. To locate this design through study now some special tools and special fixtures, jigs or general machine and universal design a simple structure, the valve body capable of clamping fixture, and ease of processing when the bolt holes two φ18 accurate and convenient .
Through the clamping force, cutting force calculations, designed to meet the special machining requirements. Primarily designed to facilitate the processing of the bolt hole φ18 two symmetric multi-axle box.
Keywords:the upper valve body；special fixtures; dedicated machine; multi-axle box
目 录
摘要 1
Abstract 2
目录 3
1 绪论 1
1.1 课题背景 1
1.2 课题研究的意义 1
2.文献综述 2
2.1 专用夹具的发展情况 2
2.1.1 专用夹具特点 2
2.1.2 夹具市场前景 3
2.2 专用机床的发展情况 3
2.2.1 专用机床的概念 3
2.2.2 专业机床特点 4
2.2.3 专业机床的应用 4
3 上阀体2-φ18孔钻削专用夹具设计 5
3.1 上阀体2-φ18孔钻削专用夹具设计要求与方案 6
3.2 定位基准的选择 6
3.3 夹具定位误差分析 7
3.4 夹紧力及夹紧装置的确定 8
3.4.1 钻削力与夹紧力的计算 8
3.4.2 夹紧元件及动力装置确定 10
3.5 钻套的选择 10
3.6 夹具体设计 10
3.7 快速螺旋夹紧机构 11
4 组合机床的总体设计 12
4.1 确定组合机床的配置形式和结构方案 12
4.2 主轴箱的设计 13
4.2.1 立式钻床的选择 13
4.2.2 主轴箱的传动设计 15
4.2.3 主动轴的设计 23
4.2.4输出轴的设计 33
5 结束语 44
致谢 45
参考文献 46 上阀体2-φ18孔专机及夹具设计+CAD图纸:http://www.751com.cn/jixie/lunwen_13365.html