定位支座零件数控多工位夹具设计-正文.doc

摘要
本论文主要研究的是不规则零件在现代制造业中的广泛应用,那么保证此类零件的加工精度就显得尤为重要。本课题通过分析定位支座零件的结构特点和加工要求,用数控加工中心来达到多工位的加工目的,提高零件在大批量生产制造过程中的效率,同时制定了一套较为合理加工工艺规程,从而为保证该零件的加工精度将提供一种经济实用的夹具设备,具有一定的实用价值,在论文中会以研究零件的工艺规程开始着手设计最为适合的夹具,在不同的夹紧方案下进行比较,并且以平面加工为定位方法,通过夹紧力的计算和定位误差达到比较,选则最为恰当、最为合理的夹具设计方案,从而保证了被加工零件的精度以及工件在加工过程中定位的可靠和准确,夹具提供足够大的夹紧力以防止工件位移,工件在夹紧力的作用下形变小。从而使得夹具在装夹工件进行加工的过程中正真发挥其作用,提高劳动的生产效率、具备一定的实用价值。
关键字:夹具装夹,定位,加工精度,平面加工,多工位
The Fixture design of Support Location Parts in The
Numerical Control
ABSTRACT
This paper is mainly explored the unformulate works which is widely used in the contemporary manufacturing technology. So it is important to assure the definition of the works manufacturing. This project is going to analysis the structure of the work and the requirements of the manufacturing process and the multiple work location. In this paper we will design the fixture with the exploring of the work. With the different clamping plan, we will select the best. Under the approach of the manufacturing of aperture, the calculation of the clamping force and the error of the location, it can be selected the most reasonable and felicity fixture. In order to guarantee the definition of the manufactured work,the correct location of the manufacturing process ,the enough clamping force to prevent the displacement of the work and the minimum deformation of the work. These are all ready to give the high labor production efficiency and the value of practicality.
key words: fixture clamp,location,definition of manufacturing, manufa
cturing of aperture, multiple work location.
目录
摘要……………………………………………………………………… 01
ABSTRACT………………………………………………………………… 02
0 引言………………………………………………………………… 03
1 机床夹具概述……………………………………………………… 05
机床夹具的作用及其分类……………………………………… 05
机床夹具的组成………………………………․……………… 07
机床夹具的多工位加工………………………………………… 08
2 定位支座零件结构分析和工艺规程制定………………………… 09
定位支座零件给构分析过程…………………………………… 09
毛坯的选择……………………………………………………… 10
定位支座零件外形结构分析…………………………………… 11
结构特点和技术要求………………………………………… 11
分析零