传动轴突缘叉加工工艺及钻39孔夹具设计【机械制造课程设计CAD及说明书】
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- 传动轴突缘叉加工工艺及钻39孔夹具设计【机械制造课程设计CAD及说明书】
摘要
传动轴是汽车传动系统中的重要部件，凸缘叉又是连接变速器和驱动桥的主要零件也是承受高速传动的零件。其结构和加工工艺直接影响零件的性能，进而影响整车动力传递的效果，其结构相对简单，但是加工工艺复杂。
本文通过搜集资料了解传动轴凸缘叉结构特点，并对凸缘叉进行了参数分析以及加工的技术要求分析，并通过其在传动系统中的作用选取适当的材料并确定其工艺流程。 绘制工艺卡片，并查找资料分析相对应的加工机床以及所需要的刀具，明确每一步的加工余量，完成工序的编制过程。在确定工艺过程的前提下，根据传动轴凸缘叉的结构特点进行对应夹具的设计，根据零件图及加工端面设计其夹紧机构和定位元件、一起其他辅助零件及联合整体的零件，确定夹具机构方案，并明确如何拆装加工工件可以提高总体的效率问题。选取加工粗糙度，设计钻孔和铣端面的夹具装置以及钻孔夹具夹紧力的计算和夹具精度的的校核。
希望制造出精度更高的凸缘叉，使传动轴更好的运行，提高功率，减少资源浪费，改善工人的劳动条件，降低生产成本以及扩大机床的工艺范围。
关键词 凸缘叉；工艺流程；加工工艺；夹具设计
Processing Technology and Design of the Jig of the Flange Yoke for Shaft
Abstract
Drive shaft is an important part in automobile transmission system, the flange yoke is connected to the transmission and drive axle of the main parts and it is under high speed driving . The structure and the processing technology impact on the performance of parts directly, in turn, influencing the effect of the vehicle power transmission, its structure is relatively simple, but complicated processing technology.
Based on the collected data to understand the shaft flange fork structure characteristics, and the flange fork parameter analysis and processing technical requirements analysis, and through its role in the transmission system to select the appropriate materials and its technological process were determined. Card drawing process, and find the corresponding machine tool to analyze the data and tools needed to clear every step of the machining allowance, and complete the process of the compilation process. In determining the processes under the premise of according to the structural characteristics of the drive shaft flange fork corresponding fixture design, according to the detail drawing and processing end design of the fastening device and positioning device, other auxiliary parts together and united as a whole parts, jig institutions scheme is determined, and define how to tear open outfit machining can improve the efficiency of the overall problem. Selecting machining roughness, end of the design of drilling and milling fixture device and drilling clamp clamping force calculation and the precision of the check.
That hopes to make the precision higher flange fork, make the shaft running better, improve power and reduce waste of resources, improve the working conditions of workers, reduce production costs and expanding process of machine tool.
Keywords Flange yoke; The process; Processing technology; The design of jig
目录
摘要 I
Abstract II
第1章 绪论 1
1.1 论文研究背景 1
1.2 论文研究的目的和意义 2
1.3 国内外研究现状 2
1.4 研究内容 3
第2章 凸缘叉结构分析 5
2.1 凸缘叉的结构特点及功用分析 5
2.2 凸缘叉结构分析 6
2.3 凸缘叉的主要技术要求 7
2.4 凸缘叉的工艺分析 7
2.5 本章小结 9
第3章 传动轴凸缘叉的加工工艺 10
3.1 概述 10
3.2 确定毛坯的制造形式 10
3.3 基面的选择 10
3.4 加工工序安排 12
3.5 制定工艺过程 12
3.6 工艺过程方案论证 12
3.7 机械加工余量的确定 14
3.8 保证加工精度的方法 15
3.9 本章小结 17
第4章 凸缘叉夹具设计 18
4.1 论述 18
4.2 夹具设计中应注意的问题 19
4.3 专用夹具设计与原则 21
4.4 夹具设计程序 22
4.5 钻孔夹具 25
4.6 本章小结 28
结论 29
致谢 30
参考文献 31
附录A 32
附录B 55
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