油压泵盖机械加工工艺及夹具设计
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- 油压泵盖机械加工工艺及夹具设计摘 要
泵是一种重要零件，被广泛的使用，例如汽油泵，液压泵，潜水泵，隔膜泵等产品，它在机械行业中的作用是不能被随便取代的，本课题选的是泵盖的机械加工工艺及夹具设计，因为泵盖是和泵密切相关的零件，在设计过程中，从大量的有关书籍中综合比较与选择最好的设计方案。液压泵盖零件重要是目前机械行业中不可否认的事实，采用传统的工艺，如钻，扩，铣等，不仅效率低且稳定性差，精度不容易保证，约束着生产的发展，对于大批量生产的零件应采用组合机床进行加工，不仅快捷高效而且生产率高，是机械加工的最佳发展方向。由课题给定的设计题目可知，应采取什么样的措施来解决泵盖加工设计及夹具设计的过程中所存在的主要问题。如毛坯制造形式获得的具体确定，基准面的选择，工序尺寸及空白，工艺路线的确定，切削用量的确定。在专用夹具设计的过程中存在着许多值得注意的问题，设计出准确合理的夹具是保证零件合格的重要条件，夹具设计中操作说明书亦很重要。此次设计能够完成主要感谢我的老师及同学们的大力支持与帮助，向他们表示衷心的感谢。
关键词 ：工艺；夹具设计
ABSTRACT
Pump is a kind of important parts, is widely used, such as gasoline pump, hydraulic pump, submersible pump, diaphragm pump and other products, its role in mechanical industry can't be replaced by random, this topic is optional pump cover mechanical processing technology and fixture design, because the pump cover are closely related and pump parts, in the design process, from a large number of relevant books comprehensive compare and choose the best design solution. Hydraulic pump cover is one of the important parts in the machinery industry there is no denying the fact that adopts the traditional process, such as drilling, expanding, and milling, etc., not only low efficiency and poor stability, not easy to ensure accuracy, constrains the development of production, should be used for mass production parts modular machine tool for processing, not only efficient but also the productivity is high, is the best development direction of mechanical processing. Designed by the topic of a given topic, what measures should be taken to solve the pump cover processing design, fixture design and the main problems existing in the process of. Such as blank making form of concrete, the selection of the datum, the process and blank size, the determination of process route, cutting parameter determination. In the process of special fixture design, there are many noticeable problems in design of fixture is accurate and reasonable guarantee the important conditions of qualified parts, fixture design in the operating instructions is also very important. This design can be completed mainly thanks to my teacher and classmates support and help, to express our heartfelt thanks to them.
Key words: process; Fixture design.
目 录
前言 4
一． 零件的分析 5
1、零件的作用 5
2、零件的工艺分析 6
二、零件工艺规程设计 7
1. 确定毛坯的制造形式 7
2. 基准面的选择 7
3. 制定工艺路线 8
4. 机械加工余量、工序尺寸及毛坯尺寸的确定 10
5. 确定切削用量 11
6. 小结 21
三 专用夹具设计 22
1. 问题的提出 22
2. 粗、精铣零件上平面夹具设计 22
3. 定位基准的选择 22
4. 铣削力与夹紧力计算 22
５. 夹具设计及操作的简要说明 25
6. 钻3－φ11孔夹具设计 26
6.1 定位基准的选择 26
6.2定位元件的设计 26
6.3定位误差分析 26
6.4钻削力与夹紧力的计算 27
6.5衬套、钻模板及夹具体设计 27
6.6夹紧装置的设计 28
6.7夹具设计及操作的简要说明 28
7. 小结 30
参考文献 31
致谢 32
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