操纵杆支架加工工艺及夹具设计-机床支架加工工艺及其夹具设计

XX 学 院

本科毕业论文（设计）

操纵杆支架加工工艺及夹具目 设计 者 院

机械工程学院

题作学专学

业 机械设计制造及其自动化 号

指导教师

二〇一五 年 五 月 五十三 日

摘 要

本次设计的主要内容是操纵杆支架加工工艺及夹具设计，操纵杆支架主要是与其它零件配对使用，其主要加工表面及控制位置为660两侧面和120?2?0.1支架底面。由零件

要求分析可知，保证660外侧端面和120?2?0.1底座厚度尺寸的同时应该尽量保证其垂直

度，这对于后工序装配和总成使用上来说都有重要影响。所以，工序安排时，采取以底面粗定位夹紧加工后，对660两侧面进行铣削加工同时成型。因其粗糙度为Ra12.5，

?2可通过粗铣、半精铣来满足。对于钻3??1100.040.21孔时，主要以操纵杆支架的?20??0.02内孔

定位，控制其自由度，以达到加工出来的产品满足要求并且一致性好的目的。

本文的研究重点在于通过对操纵杆支架的工艺性和力学性能分析，对加工工艺进行合理分析，选择确定合理的毛坯、加工方式、设计高效、省力的夹具，通过实践验证，最终加工出合格的操纵杆支架零件。

关键词：操纵杆支架；加工余量；工艺；夹具

I

ABSTRACT

Enable producing the target in process of production raw materials, the blank , state of quality and quantity on part become always take place direct course of change ask craft course, if the blank is made, machining, heat treatment , assemble etc. and call it the craft course. In the course of making the craft , is it confirm every erector location and worker step that process need this of process to want, the locomotive of processing , this process , and the entering the giving amount of the lathe, cut depth , the rotational speed of the main shaft and speed of cutting, the jig of this process, the cutter and measuring tool, a one hundred sheets of number of times still leaves and a one hundred sheets of length leaves, calculate basic time of this process , auxiliary time and service time of place of working finally.

At present, part of the processing of domestic have begun to close to the machine tool, but also need to clamp the workpiece, that is to say, although the technology has been greatly improved but his nature has not changed much, on the flip side, because of his skill and precision is high, so a high quality tool holder of machine tools is an absolute necessity. As everyone knows, because our technology in the unceasing development, technical requirements for processing of the knife is also more and more high, before an ordinary lathe is clamped four tool, and now there is a large number of will not meet the work requirements, therefore, tool holder part can clamp the tool also needs our staff to develop.

KEYWORDS:fixture multi-function; Die forging links; Group technology;clipping tight

II

目录

摘要 ..................................................................... I ABSTRACT............................................................. II 第一章 绪论 ............................................................. 1 第二章 零件的分析 ...................................................... V

2.1零件的作用 ....................................... 错误！未定义书签。 2.2零件的工艺分析 .................................................... V

第三章 确定毛坯，绘制毛坯图、零件图 ............................... VII

3.1确定毛坯的制造形式及材料 ........................................ VII 3.2机械加工余量、工序尺寸及毛坯尺寸的确定 .......................... VII

第四章 工艺规程设计 ................................................ VIII

4.1定位基准的选择 ................................................. VIII 4.2制定工艺路线 ..................................................... IX 4.3选择加工设备及刀、夹、量具 ....................................... XI 4.4 确定切削用量及基本工时 ........................................... XI 4.4.1粗、精铣底部端面 ........................................... XI

120 4.4.2粗、精铣?0.1端面，保证厚度至尺寸 ......................... XI

660 4.4.3粗铣?0.2两侧端面 .......................................... XI 660 4.4.4精铣?0.2两侧端面 .......................................... XI 360 4.4.5粗铣?0.25内侧端面 ......................................... XI 360 4.4.6精铣?0.25内侧端面 ......................................... XI 230 4.4.7粗铣?0.13内侧端面 ......................................... XI

4.4.8钻、绞

?20?0.21?0.02内孔至尺寸 .................................. XI

3??11?0.04?0内孔至尺寸 4.4.9 钻、绞................................ XI

第五章 钻孔夹具设计 ................................. 错误！未定义书签。

5.1定位基准的选择 ........................................................................................................................... XX

5.2定位元件的设计 .......................................................................................................................... XXI 5.3切削力及夹紧力的计算 ............................................................................................................. XXII 5.4钻套的设计 ............................................................................................................................... XXIII 5.5夹紧装置的设计 ....................................................................................................................... XXIV

III

小 结 .................................................................. XXV 致 谢 .................................................................. XXV 参考文献 ............................................................ XXVII

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