机械工艺夹具毕业设计59软起动隔爆箱体关键零件的铣削夹具设计

ABSTRACT
Fixture is a kind of process equipment. It can make the product to be accurate positioning and tight clamping according to certain technical requirements. Its main function is to ensure the product processing quality, reduce labor intensity, auxiliary products detection, display, transportation etc.. The sheet metal workpiece is a common project structure,it has special significance for real engineering to improve the sheet metal workpiece of milling fixture design efficiency. The actual production, it is found that use only universal fixture can not meet the requirement of production. When Universal fixture clamps the workpiece,it has defects for low production efficiency, low processing quality and increasing the marking process. Thus, a milling fixture is specially designed.The analysis of the fixture positioning scheme,clamping scheme,tool setting scheme, fixture body and the positioning element and machining accuracy etc.. That could meet the requirements of process and production. In this design, according to the two workpiece to a milling fixture design,corresponding to improve the processing technology and production efficiency of the workpiece, so as to break through the limitation of traditional fixture, it has some innovative and practical convenience. In the design process, it determines the degrees of freedom of workpiece, using six point location principle to limit sufficient freedom.And we observe the shape features and machining requirements, determining a reasonable positioning and clamping surface.Eventually,we use the UG 3D modeling software to the workpiece and the fixture for 3D modeling.By modify, it finally established the three-dimensional assembly entity graph. Keywords: The milling fixture; The Special fixture; 3D modeling; Six point location principle
编号：
毕业设计(论文)说明书
题目：软起动隔爆箱体关键零件 的铣削夹具设计 院（系） ：机电工程学院 专业：机械设计制造及其自动化 学生姓名： 学号： 指导教师单位：机电工程学院 姓名： 职称：助理研究员
题目类型：理论研究实验研究工程设计工程技术研究软件开发
2014 年 5 月 26 日
Graduation design specification Soft start the fixture design of key parts of the flameproof milling body
Mechanical design acturing and automation
From
Guilin university of electronic science and technology
By
Xu Jie
SuPervisor: Gao Cheng
Mechanic and Electronic Engineering
May2014
摘要
夹具是一种工艺装置，可以使产品按相应的技术要求确切定位和牢固夹紧。它的主 要作用是用于保证产品的加工质量、减轻劳动强度、辅助产品检测、展示、运输等。板 类工件是常见的工程结构，提高板类工件铣床夹具设计效率具有一定的实际工程意义。 目前,实际生产， 通过观察发现仅用通用夹具不能满足生产要求。 当通用夹具装夹工 件时，具有生产效率低，加工质量低，要增加划线工序等缺点。由此，专门设计了一种 铣床夹具，通过对夹具的定位方案，夹紧方案，对刀方案，夹具体与定位元件及加工精 度等方面的分析，证明能满足工艺和生产要求。在本次设计中，针对所给的两个工件， 设计出了对应的铣床夹具来提高工件的加工工艺和生产效率， 从而突破传统夹具的局限 性，具有一定的创新性和实用方便性。 在设计过程中，确定工件自由度，利用六点定位原理，限制足够的自由度，并观察 了工件的外形特点和加工要求，确定合理的定位面和夹紧面，最终使用 UG 三维模型软 件对工件和夹具进行了三维建模，通过修改，最终建立了三维装配实体图。 关键词：铣床夹具；专用夹具；三维建模；六点定位原理