支架的加工工艺规程编制和钻M8螺纹孔专用夹具设计含4张CAD图+说明书

支架零件图A4

摘要
在现代化的生产里面，因为非标零件越来越多，保证非标零件能够得到很好的加工要求的保障就是专用夹具。专用夹具在现代化的生产中非常重要，是生产主力军中不可或缺的一部分。
本次设计写的题目是支架零件加工工艺编制及专用夹具设计。本次设计的主要任务分为两部分：1、零件加工工艺规程的设计；2、M8螺纹孔钻床专用夹具的设计。
一开始进行设计的时候，我翻阅了很多相关的材料，对于夹具怎么进行定位，怎么进行夹紧等等相关的知识都了解了一下，还有对于夹具现在的状况的有关知识进行了全面的了解。本次设计的主要内容有：对零件结构的分析，确定零件的制造形式，绘制零件图和毛坯图；然后对每一个步进行计算，确定切削用量，编写加工工艺过程卡和加工工序卡；确定加工工序的定位方案和夹紧方案，选择定位元件和夹紧元件等，对其定位误差进行分析；绘制夹具装配图及夹具体零件图；撰写设计说明书，对本次设计进行总结。

关键词：专用夹具、支架、加工工艺、M8螺纹孔、钻床

Abstract
In modern production, because more and more non-standard parts, to ensure that non-standard parts can bevery good processing requirements of the guarantee is a special fixture. Special fixture isvery important in modern production, and is an integral part of the main production force.
The title of this design is the machining process design of bracket parts and the design of special fixture. The main task of this design is divided into two parts: 1. The design of parts processing procedures; 2. M8 thread hole drilling machine special fixture design.
At the beginning of the paper design, I looked through a lot of related materials, for the fixture how to locate, how to clamp and other related knowledge have a look, aswell as the current situation of the fixture for a comprehensive understanding of the relevant knowledge. The main contents of this design include: analyzing the structure of the parts, determining the manufacturing form of the parts, drawing part drawings and blank drawings; then calculating each step to determine the cutting parameters, compiling the processing process card and processing process card; determining the positioning and clamping program of the processing procedures, selecting the positioning components and blank drawings. Fixture components, such as its positioning error analysis; draw fixture assembly drawings and fixture parts drawings;write design instructions, summarize the design.
Keywords: special fixture, bracket, processing technology, M8 thread hole, drilling machine
目录
摘要I
Abstract II
第1章绪论1
1.1机床夹具在机械加工中的作用1
1.2钻床夹具概述1
第2章支架机械加工工艺规程设计3
2.1零件的工艺分析及生产类型的确定3
2.1.1零件的作用3
2.1.2零件的工艺分析3
2.1.3零件生产类型的确定4
2.2零件工艺规程设计4
2.2.1零件制造形式的确定4
2.2.2基准的选择5
2.3制定加工工艺路线5
2.4机械加工余量的确定5
2.5确定切削用量及基本工时9
第3章M8螺纹孔钻床专用夹具设计28
3.1问题的提出28
3.2夹具设计28
3.2.1确定定位方案，选择定位元件28
3.2.2确定夹紧方案，选择夹紧元件28
3.2.3夹具体的设计29
3.2.4钻套的选择29
3.2.5切削力及夹紧力计算29
3.2.6定位误差分析30
结论31
致谢32
参考文献33

夹具装配图A0

夹具体A1

支架毛坯图A4

2过程卡

3夹具设计部分

4目录

5设计所包含文件

6摘要

7字数

1工序卡