CA6140车床拨叉831002的铣断夹具设计及加工工艺装备含非标9张CAD图+说明书

夹具装配图

摘要
本设计是基于拨叉零件的加工工艺规程及一些工序的铣断夹具设计。拨叉零件的主要加工表面是外圆及孔系。一般来说，保证平面的加工精度要比保证孔系的加工精度容易。因此，本设计遵循先面后槽的原则。并将孔与平面的加工明确划分成粗加工和精加工阶段以保证孔系加工精度。主要加工工序安排是先以支承孔系定位加工出顶平面，在后续工序中除个别工序外均用顶平面和工艺孔定位加工其他孔系与平面。夹具选用专用夹具，夹紧方式多选用手动夹紧，夹紧可靠，机构可以不必自锁。因此生产效率较高。适用于大批量、流水线上加工。能够满足设计要求。

关键词拨叉类零件；工艺；夹具；

Abstract
This design is based on the processing procedure of the fork parts and the design of the cutting fixture for some working procedures. The main machined surface of the fork part is the outer circle and the hole system. Generally speaking, it is easier to ensure the machining precision of the plane than to ensure the machining precision of the hole system. Therefore, this design follows the principle of the first face and the back groove. The processing of holes and planes is clearly divided into rough and finishing stages to ensure the machining accuracy of the hole system. The main process is that first the series of supporting hole fix and machine the top plane, in addition to the follow-up processes areindividual processes with top surface and hole positioning processing other series of hole and plane. The fixture is selected with special fixture, and the clamping way is mostly manual clamping, and the clamping is reliable, and the mechanism can not lock itself. Therefore, the production efficiency is high. It is suitable for large batch and assembly line processing. It can meet the design requirements.

Keywords dialing fork parts; process; fixture;

目录
摘要I
Abstract II

第1章绪论1
1.1课题背景1
1.2夹具的发展史1
1.3小结2
第2章CA6140拨叉的加工工艺规程设计3
2.1零件的分析3
2.1.1零件的作用3
2.1.2零件的工艺分析3
2.2确定生产类型4
2.3确定毛坯4
2.3.1确定毛坯种类4
2.3.2确定铸件加工余量及形状4
2.3.3绘制铸件零件图4
2.4工艺规程设计4
2.4.1选择定位基准4
2.4.2制定工艺路线5
2.4.3选择加工设备和工艺设备6
2.4.4机械加工余量、工序尺寸及公差的确定6
2.5确定切削用量及基本工时8
2.6本章小结21
第3章铣断铣床夹具设计22
3.1研究原始质料22
3.2定位基准的选择22
3.3切削力及夹紧分析计算23
3.4误差分析与计算24
3.5零、部件的设计与选用26
3.5.1定位销选用26
3.5.2夹紧装置的选用27
3.5.3定向键与对刀装置设计27
3.6夹具设计及操作的简要说明30
结论31
参考文献32
致谢33

A3-零件图

A3-毛坯图(2件一起）

压板

圆柱销

夹具体

夹具设计部分

字数

对刀块

摘要

浮动杠杆

设计所包含文件

调节支钉

目录

工序卡

过程卡