机械毕业设计-空气压缩机机身铣三斜面专用机床夹紧系统、液压系统设计

摘要

专用组合机床目前是一种普遍的机械装置，应用于大批量生产领域，具有相当的柔性，加工精度高，生产效率提高，劳动强度减轻。

本文就是社会生产的实际需要提出的设计题目。根据现有的空气压缩机机身的相关资料，制定空气压缩机机身的加工工艺，组合铣机身三斜面的夹具设计、液压系统设计。在此基础上提出新的加工工艺和符合新工艺的加工专用机床方案，让改进和创新后的产品更适合工厂和顾客的需求。

本文在对组合铣三斜面的工装设计过程中，对铣三个斜面及钻孔的专用夹具进行了全面的设计。从夹具的外型尺寸设计到具体的一面两销限制自由度定位方案再到加工面精度的计算：液压进给系统的设计，本文也用了不少的篇幅。重点根据液压系统的基本原理，画出合理的液压系统图；根据主要参数确定了液压元件的选择，在组合机床设计过程中结合具体实践和设计经验，阐述了通用件如（液压滑台）的选取及专用部件（如主轴箱）的设计计算。

最后希望此次设计的夹具和液压系统能达到预期的设计要求，并能在实际的应用中取得良好的效果。

关键词：组合机床；专用要求；工艺；钻夹具；液压

Abstract

Special combined machine tool is a mechanical device for universal, applicable to mass production, is quite flexible, high machining accuracy, improve production efficiency, reduce labor intensity.

This paper is the design requirement of social production. According to the relevant data of the existing air compressor machine, machining process air compressor airframe design, fixture design, combination milling body three inclined planes of the hydraulic system. On the basis of this new processing technology is proposed and in line with the new technology of special machine tool for processing scheme, make improvement and innovation of the products more suitable for factories and customer needs.

Based on the combination of the three bevel milling fixture design process, special fixture of milling three and inclined boreholes were comprehensive design. From the dimension design of fixture to the two side pin constrained degrees of freedom positioning scheme to the calculation of machining surface precision: the design of hydraulic feed system, this paper also use a lot of space. Key according to the basic principle of hydraulic system, draw the diagram of hydraulic system reasonable; according to the main parameters of hydraulic component has been selected, combined with the specific practice and experience in the design process in the design of the modular machine tool, describes the general parts (such as hydraulic slider) selection and special parts (such as the design and calculation of main spindle box).

Finally, I hope this design fixture and hydraulic system can meet the design requirements, and can achieve good effect in actual application.

Key words:unit built machine tool ;special requirements ;craftwork

;drill jig ;hydraulic pressure

目录

摘要.............................................................................................................................................. I ABSTRACT ................................................................................................................................... II 目录............................................................................................................................................ V 1 绪论 (1)

1.1力源压缩机有限公司简介 (1)

1.2本课题的意义目的 (1)

1.3本设计的技术要求 (1)

2 压缩机机身铣三斜面加工工艺规程设计 (2)

2.1工艺方案的制定 (2)

2.2产品图纸及结构分析 (2)

2.3毛坯分析、要求及形式的确定 (3)

2.3.1 毛坯种类的选择 (3)

2.3.2 选择毛坯应考虑的因素 (3)

2.3.3 确定毛坯的制造形式 (4)

2.4拟定加工工艺路线 (4)

2.4.1 定位基准的选择 (4)

2.4.2 表面加工方法的选择 (5)

2.4.3 加工顺序的安排 (5)

2.5加工余量、工序尺寸及其公差和毛坯尺寸的确定 (7)

2.5.1 加工余量的拟定 (7)

2.5.2 加工余量及毛坯尺寸的确定 (8)

2.5.3 工序尺寸及其公差的确定 (9)

2.6加工工艺规程 (9)

2.6.1 机械加工工艺规程的作用 (9)

2.6.2 制定机械加工工艺的原则 (9)

2.6.3 粗、精铣三斜面工序 (9)

2.7工艺、主要工序卡片 (12)

3 空压机机身铣三斜面专用机床总体设计概述 (17)

3.1机床总体设计 (17)

3.1.1 专用机床概述 (17)

3.1.2 机床设计应满足的要求 (17)

3.2机床设计方法 (18)

3.3机床设计步骤 (19)

3.4机床对部件设计的要求 (20)

3.5加工零件图的设计 (21)

3.5.1 被加工零件工序图的确定 (21)

4 夹紧系统设计 (22)

V