文档包括:
word说明书一份，共24页，约5900字
工艺卡片一套
过程卡一套

CAD版本图纸，共4张

摘  要

本次设计内容涉及了机械制造工艺及机床夹具设计、金属切削机床、公差配合与测量等多方面的知识。
泵体的工艺规程及其镗30H7孔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。

关键词：工艺、工序、切削用量、夹紧、定位、误差。

ABSTRCT

This design involves the machinery manufacturing process and fixture design, metal cutting

machine tool, tolerance and measurement and other aspects of knowledge.
Fixture design process of the pump body and the boring hole 30H7 is designed to include part

machining process design, process design and fixture three. In process design should first of

all parts for analysis, to understand part of the process to design blank structure, and

choose the good parts machining datum, design the process routes of the parts; then the parts

of each step in the process to the size calculation, the key is to determine the craft

equipment and the cutting dosage of each working procedure design; then the special fixture,

the fixture for the various components of the design, such as the connecting part positioning

devices, clamping element, a guide element, fixture and machine tools and other components;

positioning error calculated by the analysis of fixture, jig structure the rationality and

the deficiency, pay attention to improving and will design in.
Keywords: The craft, the working procedure, the cutting specifications, clamp, the

localization, the error

目    录

序言…………………………………………………………………1

一. 零件分析  ……………………………………………………2
二. 工艺规程设计…………………………………………………3
2.1确定毛坯的制造形式 ……………………………………3
2.2基面的选择传 ……………………………………………4
2.3制定工艺路线 ……………………………………………5
2.4确定切削用量及基本工时……………………………… 5
三  夹具设计 ……………………………………………………15
3.1铣2-Φ20凸台面的工装夹具……………………………15
3.1.1问题的提出……………………………………………15
3.1.2定位基准的选择………………………………………15
3.1.3定位元件的设计………………………………………15
3.1.4切削力及夹紧力计算…………………………………15
3.1.5定位误差分析…………………………………………17
3.2钻、攻2-M10的工装夹具………………………………17
3.2.1问题的提出……………………………………………18
3.2.2定位基准的选择………………………………………18
3.2.3定位元件的设计………………………………………18
3.2.4切削力及夹紧力计算…………………………………18
3.2.5定位误差分析…………………………………………18
总 结………………………………………………………………20
致 谢……………………………