1、XXX大学邮电与信息工程学院毕业设计说明书论文题目鼠标曲面的建模及数控加工研究学 号学生姓名专业班级指导教师总评成绩2018年 5月 20日目 录目 录I摘 要IIAbstractIII第一章 绪论- 1 -1.1引言- 1 -1.2国外发展状况- 1 -1.3国内发展状况- 2 -1.4研究内容- 3 -第二章 零件的设计- 6 -2.1鼠标的建模分析- 6 -2.2鼠标周围的曲面建模- 6 -2.3鼠标上盖的曲面建模- 12 -2.4侧面曲面和顶面曲面的建立- 13 -2.5顶面与侧面倒圆角面- 15 -2.6本章小结- 16 -第三章 仿真加工- 17 -3.1仿真加工概述- 17 -3
2、.2仿真加工准备工作- 18 -3.3鼠标模仿真加工过程- 20 -3.4加工后处理- 28 -3.5本章小结- 30 -第四章 总结与展望- 31 -4.1总结- 31 -4.2展望- 31 -致 谢- 32 -附录 NC程序- 33 -参考文献- 36 -摘 要 基于计算机平台的拥有实现产品设计和制造自动化的关键技术的软件Mastercam为CNC Software Inc.公司研发出来的。 该软件可以提供具体数学外形的零件设计所需的最佳环境，Mastercam多年来的优化让它具备绝对稳定的工作环境，用于对曲面粗加工精加工的加工模拟。在制造行业中运用Mastercam的能力来设计产品及数控
3、加工产品，可以有效提高产品的生产效率和生产质量。Masterca可以使用DNC加工方式, 由计算机直接控制多台数控机床的技术DNC（直接数控），其技术是实现CAD/CAM的关键技术之一。它在群面精加工的领域中的能力也是极其出色的，可以从各式各样的加工方法中选择最好最简易的加工方法，所以它能够胜任加工最复杂的零件的任务。mastercam的加工方法中有一个多轴加工功能，它可以为零件加工的灵活度提高不少。Mastercam提供400种以上的后置处理文件以适用于各种类型的数控系统，采用的是FANUC系统，机床为四轴联动卧式铣床。根据机床的实际结构，编制了专门的后置处理文件，绳槽曲面加工刀具路径NCI
4、文件经后置处理后生成加工程序。 由于本工件较大，处理的数据多，所生成的程序长，数控机床的磁泡存储器已不能满足程序量的要求，这样就必须采用DNC加工方式，利用RS-232串行接口，将计算机和数控机床连接起来。利用Mastercam的Communic功能进行通讯，而不必考虑机床的内存不足问题,经大量的实践，用Mastercam软件编制复杂零件的加工程序极为方便，而且能对加工过程进行实时仿真，真实反映加工过程中的实际情况，不愧为一优秀的CAD/CAM软件论文研究基于Mastercam，基于Mastercam实现鼠标的造型与加工，论文首先简要介绍了Mastercam及其实现技术，Mastercam的构
5、成及主要流程；然后详细介绍了基于mastercam的鼠标造型与加工，并给出了基于mastercam的鼠标造型与加工实现方案及技术细节。 此次课题的鼠标曲面为多年来经典的曲面模型，是用MASTERCAM来设计建造鼠标的三维曲面建模及其本身的仿真加工模型零件，生成加工程序并在数控机床上加工出其模型。首先根据图纸上图形实物，了解各部分之间大致尺寸关系，根据自己的设计运用CAD建模功能创建出鼠标的三维模型。创建后的实体模型可以在CAM中生成精确的刀具路径。生成的刀具路径，可以通过后置处理产生用于特定数控机床的加工代码。生成的加工代码传输到指定的数控机床上来完成鼠标的数控加工。 通过本次研究进一步证实了
6、MASTERCAM软件在曲面建模和加工中所具有的强大功能。关键词：Mastercam 曲面建模 设计 数控加工AbstractBased on the computer platform has the key technology to achieve product design and manufacturing automation software CNC for Software Inc. Mastercam developed by the company. The software can provide the best environment for the design
7、of the specific mathematical form, and the optimization of Mastercam for many years makes it have absolutely stable working environment, which is used to simulate the machining process of rough surface. In the manufacturing industry the ability to use Mastercam to design products and CNC machining p
8、roducts, can effectively improve the production efficiency and quality of production. Masterca can use DNC processing method, by the computer directly control the technology DNC (direct numerical control), and its technology is one of the key technologies of CAD/CAM. Its capabilities in the field of
9、 group of surface finishing is also very good, you can select the best and most simple processing method from the various processing methods, so it can be competent for processing the most complex parts of the task. MasterCAM processing method has a multi axis machining function, it can be a lot of
10、flexibility in the processing of parts. Mastercam provides more than 400 kinds of post processing file to apply to all types of CNC system, the use of FANUC system, machine tool for the four axis linkage horizontal milling machine. According to the actual structure of the machine tool, the special p
11、ost processing file is compiled, and the NCI file of the tool path of the rope groove curved surface is processed by post processing. As part of the larger, processing data, generated by the long process, CNC machine tools of magnetic bubble memory has been unable to meet the requirements of the pro
12、gram, so we must use DNC processing, use RS-232 serial interface, connect the computer and NC machine tool. Using Mastercam communication Communic function, without considering the problem of insufficient memory machine, with a lot of practice, using Mastercam software to compile complex program par
13、ts is very convenient, but also can carry out real-time simulation of machining process, truly reflect the actual situation in the process, is worthy of research of a CAD/CAM software based on the excellent Mastercam, Mastercam design and processing based on the mouse, the paper briefly introduces t
14、he Mastercam and its implementation technology, Mastercam structure and main flow; and then introduces the mouse design and processing based on Mastercam, and gives the mouse modeling and processing of MasterCAM program and technical details based on. The subject of the mouse surface for years to th
15、e classical surface model is with MasterCAM to design mouse built 3D surface modeling and machining simulation model parts, machining program generation and in NC machine tool processing model. First, according to the drawings on the graphics in kind, to understand the general size of the relationship between the parts, according to their own design using CAD modeling functions to create a three-dimensional model of the mouse. The created entity model can generate accurate tool paths in CAM. Generated tool path can be generated for a specific NC machi
