数控机床夹具设计本科设计论文(论文).doc

西 京 学 院 本科毕业设计(论文) 题目：数控机床夹具设计 教学单位： 西京学院 专 业： 机械设计制造及其自动化 学 号： 姓 名： 指导教师： 2012年 04月 摘 要 夹具是机械制造工艺系统的必要组成部分，特别是在批量生产中，为了提高生产效率，保证加工质量，夹具的使用更是必不可少。夹具主要由定位件、夹紧件、夹具体三部分构成，在加工中起到定位与夹紧的作用。夹具的设计依照加工工序的要求，一般按定位、夹紧的顺序完成。　ABSTRACT Fixture is the mechanical manufacturing process a necessary part of the system, especially in batch production, in order to improve production efficiency and guarantee the processing quality, the use of fixture is indispensable. Mainly by positioning a fixture, clamping pieces, clip concrete is composed of three parts, in the processing of orientation and clamping play a role. The design of fixture in accordance with the requirements of processing operations, according to the general orientation, clamping order completed. This thesis is to combine the actual production, often found only in general can not meet the production requirements, fixture with general clamping work-piece jig low labor productivity, quality is not high, and often need to increase crossed, specially designed a kind of milling fixture, mainly including the positioning jig, clamping, to plan, and specific design and machining precision of key aspects of analysis. The clip has good machining precision and pertinence, mainly used for gearshift forks slot lathing parts of the processing procedure. This fixture is clamping force device, the machine tools fixture with modern requirements of precision and efficiency of the characteristic, can effectively reduce the processing time and auxiliary time of basic, greatly improving the labor productivity, which can effectively reduce the labor intensity and increase the work efficiency. So the understanding and knowledge of fixture in learning, today is particularly important. Key words： Efficient manufacturing milling fixtur 目 录 1 .绪 论 1 1.1 机床夹具设计概述 1 1.2课题的目的及意义 1 1.3国内外文献综述 1 1.3.1国内机床夹具的发展历史 1 1.3.2国外机床夹具的发展历史