论文（林建城）学号109202030021,本3

江西科技学院本科生毕业论文（设计）

摘要

现今，国内数控车削加工多采用手动编程，而手动输入程序具有工作效率低，程序复杂等缺点。在待机械加工产品精度高、改型频繁的要求下，可采用UG软件中仿形加工，自动编程，大大的减少了产品加工时间，而且，提高了产品的精确度和工作效率，降低生产成本。因此，本文提出基于UG软件的法兰盘的数控加工课题研究。

本设计以法兰盘车削为例，首先，对法兰盘的数控工艺进行详细的分析，主要是对零件图纸认真分析和工艺过程设计；再者，利用UG软件中的CAD模块按照图纸的要求画出法兰盘的实体造型，并且完成法兰盘零件的工程图转换；然后，利用UG软件中的CAM模块创建加工程序，选择需要的刀具和操作方法，，并模拟出刀路轨迹，同时提出改进和优化不足之处；最后，利用零件后处理加工程序在机床上进行实际加工。

关键词： UG；仿形加工；自动编程；实体三维造型；刀具轨迹；后处理；

江西科技学院本科生毕业论文（设计）

Abstract

Today, CNC Turning the use of manual programming, however, manually enter the program has low efficiency and complicated procedures. Be machining high precision, frequent modification request can be used UG software profiling, automatic programming, greatly reducing the processing time and to improve the accuracy and efficiency of the products, reduce production costs. Therefore, this paper proposes based on the UG software flange CNC machining research.

The design flange turning, for example, first of all, a detailed analysis of the flange CNC process, a careful analysis of the part drawing and process design; Furthermore UG CAD software module in accordance with the requirements of the drawings, draw the physical shape of the flange, and the completion of the flange parts drawing conversion; Then, using UG CAM software module to create a machining program, select the desired tool and method of operation, and simulate the tool path, at the same time suggestions for improvement and optimization of inadequate; Finally, the use of parts processing actual processing program on the machine.

Key words: UG; profiling; automatic programming; physical three-dimensional modeling; tool path; after treatment;

江西科技学院本科生毕业论文（设计）

目 录

摘要 .................................................................................................................................................. 1 Abstract ............................................................................................................................................. 1 目 录 ................................................................................................................................................ 1 第一章 绪论 ................................................................................................................................... 1

1.1 课题研究背景 ................................................................................................................. 1 1.2 课题研究的目的及意义 ................................................................................................. 1 1.3 课题研究内容及其方法 ................................................................................................. 1 第二章 法兰盘的数控工艺 ........................................................................................................... 3

2.1 零件的图样分析 ............................................................................................................. 3 2.2 选择毛坯 ......................................................................................................................... 4 2.3 工艺过程设计 ................................................................................................................. 4 第三章 法兰盘的CAD设计 ........................................................................................................ 8

3.1 法兰盘零件三维造型设计 ............................................................................................ 8 3.2 法兰盘零件的工程图转换 ........................................................................................... 10 第四章 法兰盘零件CAM设计模块 .......................................................................................... 12 4.1 创建加工程序 ............................................................................................................... 12

4.2 创建刀具 ....................................................................................................................... 12 4.3 创建加工几何体 ........................................................................................................... 14 4.4 创建加工操作 ............................................................................................................... 16 4.5 程序后处理 ................................................................................................................... 35 第五章 法兰盘零件的车床加工 ................................................................................................... 35

5.1 法兰盘零件NC加工程序单 ......................................................................................... 36 5.2 法兰盘零件加工（SIEMENS 802D 数控车床） ......................................................... 37 结束语 ............................................................................................................................................ 39 致 谢 .............................................................................................................................................. 40 参考文献......................................................................................................................................... 41

江西科技学院本科生毕业论文（设计）

第一章 绪论

1.1 课题研究背景

目前，待机械加工产品日趋复杂精密，且改型频繁。国内普通机床加工这些产品效率低，强度大，有些甚至难以加工。随着科学技术的发展，数控机 …… 此处隐藏：4297字，全部文档内容请下载后查看。喜欢就下载吧 ……