设计简介
摘 要
本次设计是对蜗杆轴承座的加工工艺规程及一些工序的专用夹具设计。轴承座零件的主要加工表面是端面,孔,螺纹及槽加工。由加工工艺原则可知,为了保证零件的精度,同时节约成本縮短加工周期提高生产效率。那么一个良好的工艺安排以及专用夹具的设计必不可少。在工艺的安排下不紧考虑合理的加工要求,还要考虑操作者及加工机械的安全。同时夹具的设计也要考虑拆卸的方便及安全。设计一个良好的工艺工装安排路线必须对加工件的详细分析及周密考虑后才能得出。所以分析问题是解决问题的关键。同时还要反复的调整。来寻求一个最好的方案。这样才能保证工件的加工精度及生产节拍。需要正确的解决在加工的程序里零件的定位和夹紧跟工艺路线的布置和工艺尺寸大小的确定等一系列因素,然后设计出专用的夹具来确保零件的质量。这种设计是必须要培养自主学习以及自我创新的能力。所以这种设计是全面和实用的,涵盖广泛的知识。 因此,我们不仅要关注设计中的基本概念,也需要关注生产实践。把理论和生产实践结合起来,我们才能完成好这次的设计。
关键词:轴承座;工艺;夹具
ABSTRACT
This design is for the worm bearing seat machining process specification and some process specific fixture design. The main machined surfaces of bearing housings are end faces, holes, threads and grooves. According to the principle of processing technology, in order to ensure the accuracy of parts, at the same time, save costs, shorten the processing cycle and improve production efficiency. A good technological arrangement and the design of special fixture are essential. Under the technological arrangement, we should not consider the reasonable processing requirements, but also consider the safety of the operators and processing machinery. At the same time, the design of fixture should also consider the convenience and safety of disassembly. A good tooling arrangement must be designed and analyzed in detail after careful analysis and careful consideration. So the analysis of the problem is the key to solving the problem. At the same time, it should be adjusted again and again. To find a best solution. Only in this way can the machining accuracy and production rhythm of the workpiece be ensured. It is necessary to correctly solve a series of factors such as the positioning and clamping of the parts in the processing program, the layout of the process route and the determination of the size and size of the process, and then a special fixture is designed to ensure the quality of the parts. This design is the ability to develop autonomous learning and self innovation. So this design is comprehensive and practical, covering a wide range of knowledge. Therefore, we should not only focus on the basic concepts in design, but also pay attention to production practice. Combining theory with production practice, we can finish this design well.Keywords:Drill sleeve; process; jig fixture
目 录
摘 要 II
ABSTRACT II
第一章 绪论 1
1.1 机械制造的重要性 1
1.2 夹具的发展历程 2
1.3课题的背景 2
1.4夹具的介绍 2
1.5课题的研究方法 3
1.6小结 3
第二章 零件分析 1
2.1零件详细分析图 1
2.2零件的作用 2
2.3零件加工表面的详细技术分析 2
2.4把铸件的余量跟形状确定 2
2.5绘制毛坯图 3
第三章 机械加工的工艺流程设计 4
3.1加工基准的选择 4
3.2 拟订的工艺过程 4
第四章 加工设备跟工艺装备的选取 6
4.1依照不同的工序来选择不同的机床 6
4.2如何选取刀具,夹具以及量具 6
4.3 切削用量的计算和确定 7
第五章 专用夹具的内部结构设计 16
5.1确定出设计的任务跟收集并分析原始的资料 16
5.2夹具内部结构跟类型 18
5.3工件定位基准的选择和自由度分析 19
5.4夹具的内部结构 19
5.5夹具的精度进行分析 20
5.6配合偏差的计算 21
致 谢 22
参 考 文 献 23