摘 要

高效率的特殊机床具有大量通用零件和少量具有工艺集中功能的特殊零件，是一种组合机床。相较于D180机体顶面10个螺纹孔,需要设计一台专用的攻丝机床以及一套专用的夹具。这一方面可以确保大批量生产时的加工效率,另一外面还能体现出加工的经济效益。此次毕业设计的内容包含了攻丝机床部分的机械设计,也包含了对夹具的设计与考虑,要求能够满足实际生产中在零件上攻制螺纹。

此次设计任务的对象是已经完成钻孔的D180机体顶面10个孔，工序是攻丝，并设计出专用的组合攻丝机床以及相对应的夹具。所设计的D180机体顶面10孔专用组合攻丝机床包括对一些专用部件的选用例如主轴箱内的动力箱和动力滑台等。当然，也包括对加工所需刀具的选取，用于对工件进行定位夹紧的专用夹具的设计。在完成一系列设计之后要绘制出相应的图纸。

本次设计将对于D180机体顶面10孔攻丝的实际生产提供理论参考。

关键词： D180机体；攻丝；组合机床；夹具

D180 top surface 10 hole tapping machine tool and fixture design

ABSTRACT

A highly efficient special machine tool with a large number of common parts and a small number of special parts with process concentration features is a combined machine tool.Compared to the 10 threaded holes on the top surface of the D180 body, it is necessary to design a special tapping machine and a set of special fixtures. This aspect can ensure processing efficiency in mass production, and the outside can also reflect the economic benefits of processing. The content of this graduation project includes the mechanical design of the tapping machine part, and also includes the design and consideration of the fixture, which is required to meet the actual production of the thread on the part.

This design task is mainly to tap the top 10 holes of the D180 body that has been drilled, and design a special combined tapping machine and the corresponding fixture. The designed 10-hole special combination tapping machine for the D180 body includes the selection of special components such as the power box and power slide in the head-stock. Of course, it also includes the selection of the tool required for machining, and the design of a special fixture for positioning and clamping the work-piece. After completing a series of designs, draw the corresponding machining diagram, tool flow chart, machine size contact diagram, corresponding clip specific diagram, and so on.

This design will provide a theoretical reference for the actual production of the 10-hole tapping on the top surface of the D180 body.

Key words: D180 organism; Tapping; Modular machine tools; jig

目 录

1组合机床简介 1

1.1组合机床的特点 1

1.2国内外组合机床的发展与展望 1

1.3研究设计的目的和意义 2

2组合机床工艺方案及配置方式的确定 3

2.1组合机床工艺方案的确定 3

2.1.1工艺基准面的分析 3

2.1.3 确定组合机床工艺方案时应注意的问题 4

2.1.4切削用量的选择 4

2.2 组合机床配置形式的选择 5

3 组合机床总体设计 6

3.1攻丝组合机床常用的通用部件及选用 6

3.1.1通用部件的选用原则 6

3.1.2攻丝组合机床常用的通用部件及其选用 6

3.2.1被加工零件工序图 10

3.2.2加工示意图 11

3.2.3机床联系尺寸图 12

3.2.4机床生产率计算卡 16

4 组合机床多主轴箱设计 20

4.1 多主轴箱的基本结构 20

4.2 多主轴箱设计步骤和内容 20

4.2.1绘制多主轴箱设计原始依据 20

4.2.2传动系统的设计与计算 21

4.3轴的坐标计算 22

4.3.1建立大坐标系XoY 22

4.3.2建立小坐标系xoy 22

4.3.3主轴坐标的计算 22

4.3.6各轴在大坐标系XoY下的坐标 24

4.3.7各轴转速的计算 24

4.4主轴箱总图设计 24

4.4.1主视图设计 24

4.4.2展开图设计 25

5 组合机床夹具设计 26

5.1 组合机床夹具概述 26

5.2 组合机床夹具的总体设计 26

5.2.1组合机床夹具的设计步骤 26

5.2.2组合机床夹具结构方案的制定 26

5.3夹具总图的绘制 29

5.3.2 绘制总图的程序和要求 29

结 论 31

致 谢 32

参考文献 33

1组合机床简介

1.1组合机床的特点

(1)用在一些棱体类零件和一些杂件的孔面的加工上。