方套加工工艺及钻孔5-φ8.5的夹具设计【设计说明书+CAD图纸+工序卡+过程卡+外文翻译】

  摘 要

本次设计内容主要是机械加工工艺，工程材料应用，机床夹具设计及金属切削机床等多方面知识。

方套零件的设计主要是由零件加工工艺设计，工序设计和其机床专用夹具设计组成。加工工艺设计主要对零件的作用和零件的工艺分析，设计出其毛坯结构。再由其基面粗基准和精基准的选择来制定出工艺路线，从而确定零件机械加工余量及工序尺寸和切削用量及基本工时。最后进行零件专用夹具，定位分析及基准的选择和切削力和夹紧力的计算以及定位误差分析，从而确定定位元件、加紧元件、机床链接部分和夹具体来设计出夹具。本文主要围绕方套夹具设计为中心，在分析生产零件的基础上设计制造工艺，针对方套的加工工艺确定夹具设计方案。在设计合理，符合工程实际的基础上，设计了3套夹具，并绘制夹具装配图及零件图，完成毕业设计。

关键词：方套、加工工艺、夹具、夹具设计

Square Sleeve’s Machining Process And Its Fixture Design

Abstract

The design content mainly by mechanical processing technology, application of engineering materials, tooling and fixture design of metal cutting machine tool and so on.

Fixture design process design and fixture design of the machine tool. Process analysis of machining process design of the main role of parts and components, design the billet structure. From its base and benchmark crude benchmarks choice to develop process, so as to determine the parts machining allowance and the process dimensions and cutting parameters and the basic working hours. The last part of special fixture, positioning analysis and selection of reference and cutting force and clamping force calculation and positioning error, so as to determine the positioning element to element, machine tool, clamp to link part and fixture design. This paper mainly focuses on the sets of fixture design as the center, the design and manufacturing process based on the analysis of production parts, design scheme of the fixture for processing sleeve. On the basis of reasonable design, accord with the actual engineering, 3 sets of fixture design, fixture and assembly drawings and parts drawing, completed the graduation design.

     Keywords：Square Sleeve, Processing technic,Fixture , Fixture design

目  录

1 绪  论

1.1 概述

1.2 夹具的研究意义

1.3 夹具的相关研究现况

1.4 本课题的主要研究内容

2零件分析

2.1 零件的生产类型及生产纲领

2.2 零件作用分析

2.3 零件的工艺分析

2.4 确定毛坯的成形方法

2.5 确定铸造工艺方案

2.6 确定铸造工艺参数

3 机械加工工艺规程设计

3.1 基面的选择

3.2 确定机械加工余量及工序尺寸

3.3 确定切削用量及基本工时

4钻Ø8孔夹具设计

4.1定位分析及基准的选择

4.2切削力及夹紧力的计算

4.3定位误差分析

4.4定位销选用

4.5夹具设计及操作的简要说明

结  论 37

参考文献 38

致  谢 39