设计描述：

文档包括:
word说明书一份，共24页，约6600字
CAD版本图纸，共4张
工序卡一份
过程卡一份

一、 设计题目
齿轮轴零件的机械加工工艺规程及工艺装备设计
二、原始资料
(1) 被加工零件的零件图                             1张
(2) 生产类型:中批或大批大量生产

三、上交材料
(1) 被加工工件的零件图                             1张
(2) 毛坯图                                        1张
(3)机械加工工艺过程综合卡片               1张
(4) 与所设计夹具对应那道工序的工序卡片               1张
(4) 夹具装配图                                    1张
(5) 夹具体零件图                                   1张
(6) 课程设计说明书(5000～8000字)                    1份

四、进度安排
(1) 熟悉零件,画零件图                              2天                           
(2) 选择工艺方案,确定工艺路线,填写工艺过程综合卡片    5天
(3) 工艺装备设计(画夹具装配图及夹具体图)             9天
(4) 编写说明书                                    3天
(5) 准备及答辩                                    2天
五、指导教师评语
摘　要
齿轮轴的加工工艺规程及其铣键槽的夹具设计是包括零件加工的工艺设计、工序设计以及专用夹具的设计

三部分。在工艺设计中要首先对零件进行分析，了解零件的工艺再设计出毛坯的结构，并选择好零件的加

工基准，设计出零件的工艺路线；接着对零件各个工步的工序进行尺寸计算，关键是决定出各个工序的工

艺装备及切削用量；然后进行专用夹具的设计，选择设计出夹具的各个组成部件，如定位元件、夹紧元件

、引导元件、夹具体与机床的连接部件以及其它部件；计算出夹具定位时产生的定位误差，分析夹具结构

的合理性与不足之处，并在以后设计中注意改进。
这次设计有零件图、毛坯图、装配图各一张，机械加工工艺过程卡片和与所设计夹具对应那道工序的工序

卡片各一张。首先我们要熟悉零件，题目所给的零件是齿轮轴。了解齿轮轴的作用，接下来根据零件的性

质和零件图上各端面的粗糙度确定毛坯的尺寸和机械加工余量。然后我们再根据定位基准先确定精基准，

后确定粗基准，最后拟定齿轮轴的工艺路线图，制定该工件的夹紧方案，画出夹具装配图，夹具体零件图

。
这就是我设计的基本过程。
Abstract
The gear shaft of the processing procedure and keyway milling fixture design includes parts

machining process design, process design and fixture design in three parts. In the design

process should first of all parts for analysis, to understand the parts of the process to

design the structure of the blank, and select good parts processing base, design parts of the

process route; and then the various parts of process dimension calculation, is the key to

decide all processes equipment and cutting parameters; then special fixture design, selection

and design of a jig for the various components, such as positioning devices, clamping

elements, the guide element, clamp and the machine tool connecting parts and other

components; calculate fixture is produced when the positioning error of fixture structure,

rationality and deficiency, and later in the design of improved.
This design has the part drawing, assembly drawing blank map, each one, machining process

card and the jig design corresponding to the process card each one. First we should know the

part, subject to the parts gear shaft. Understanding the role of the gear shaft, then

according to parts of nature and parts of the surface roughness to determine the dimensions

of the blank and the machining allowance. We then according to the locating datum to

determine the precise basis, after determining the benchmark, to finalize the gear shaft

technology roadmap, the formulation of the workpiece clamping scheme, draw the jig assembly

drawing, with specific parts.
This is my design of the basic process.

目 录
摘　要 II
Abstract III
1． 零件的分析 1
1.1零件的作用 1
1.2零件的工艺分析 1
1.3审核齿轮轴的工艺性 1
1.4确定生产类型 1
2.确定毛坯并绘制毛坯简图 2
2.1确定毛坯种类 2
2.2确定毛坯的尺寸公差和加工余量 2
2.2.1.公差等级 2
2.2.2锻件质量 2
2.2.3. 锻件的材质系数 2
3.制定工艺路线 4
3.1定位基准的确定 4
3.1.1. 粗基准的选择： 4
3.1.2.精基准的选择： 5
3.2表面加工方法的确定 5
3.3工序的集中与分散 6
3.4工序顺序的安排 6
3.5确定工艺路线 6
4.夹具的设计 9
4.1问题的提出 9
4.2夹具的设计 9
4.2.1定位基准的选择 9
4.2.2.定位误差的分析 9
4.2.3.切削力与夹紧力的计算 9
小结： 12
参考文献： 13