十字三维图
某十字轴零件机械加工工艺及其夹具设计
摘要
本文完成了十字轴零件的工艺规程及设计了铣26端面以及钻14孔的两套夹具。从零件的结构外形分析，它的外型复杂，且不易加工，因此该零件选用是锻件。它的主要加工面是孔、端面，在本设计中，先以一个面加工出一个基准面，然后，再以该基准面加工相应的孔。在整个加工过程中，分别采用了铣床、钻床。并设计了铣端面、钻孔的专用夹具，并对它们的定位分别采用了两个V型块定位，一挡销来辅助定位，铣床夹具用了三个V型块定位。由于该零件的尺寸不大，所需的夹紧力不大。因此，夹紧方式都采用手动夹紧，它的夹紧简单，机构的设计更为方便，满足夹紧要求。
关键词：十字轴零件；加工工艺；专用夹具；
Design Of Shaft Parts Machining Process And
Fixture Of A Cross
Abstract
This paper completed cross shaft parts written and 26 face milling and drilling 14 holes of the two sets of fixture design. From the analysis of structure and shape of parts, its shape is complex, and not easy to processing, so the selection of parts is forging. Its main processing is the hole surface, face, in the design, first to a surface processing of a reference plane, and then, and then in the base-level processing corresponding holes. In the whole process of the milling machine, drilling machine, respectively. And the design of special fixture for milling, drilling, and their location using the four V type block position, a stop pin to the auxiliary positioning. Due to the small size of components, the clamping force is needed. Therefore, the clamping means are manually clamping, clamping it simple, more convenient for the design of institutions, to meet the requirements of clamping.
Key Words：Intermed shaft supporting bracket；Processing；Special fixture；
目录
1绪论0
1.1综述0
1.2机床夹具的现状及发展方向0
1.2.1国内外机床夹具的现状0
1.2.2现代机床夹具的发展方向0
1.3课题背景0
1.4本文主要研究工作4
2零件的分析0
2.1零件作用0
2.2零件的工艺分析0
3工艺规程设计0
3.1确定毛坯的制造形式0
3.2基面的选择0
3.3制定工艺路线0
3.4机械加工余量，工艺尺寸及毛坯尺寸的确定0
3.5确定切削用量及基本工时0
3.6小结0
4钻床夹具设计0
4.1机床夹具组成0
4.2机床夹具作用0
4.3机床夹具分类0
4.4夹具设计步骤0
4.5钻床夹具设计过程0
4.5.1定位基准的选择0
4.5.2夹具设计0
5铣床夹具设计0
5.1铣床夹具的设计特点0
5.2夹具装夹工件的特点0
5.3铣床夹具的安装0
5.4铣床夹具的对刀位置0
5.5铣刀分类0
5.6定位方案0
5.6.1定位误差计算0
5.6.2夹紧方案0
6.设计总结错误!未定义书签。
参考文献0
致谢0
00零件图
装配图1A1
夹具三维图
V形块
装配图2A1
夹具体(2)
夹具体
铰链支座
螺母
十字轴A2
压杆
钻套
