高速数控加工中心虚拟现实教学系统的开发

发布时间：2019-03-23 17:00

【摘要】：随着计算机技术的飞速发展,传统的实验室教学已经不能够满足时代的需求。所以虚拟实验室教学法应运而生,而本课题研究的“高速数控加工中心虚拟现实教学系统”正是一种崭新的教学法。“高速数控加工中心虚拟现实教学系统”是以数控加工中心机床为实例,通过虚拟现实技术建立有交互性能的三维可视化教学系统。高速立式加工中心已被列入国家“高档数控机床与基础制造装备”科技重大专项。把虚拟现实技术运用于高速数控加工中心,将为机床教学提供一个逼真、动态、可视化的教学环境,推动机床教学的重大变革。教学系统是面向高校机械专业研发的。系统可用于教学、实验、科学研究,具有较高的实用价值。课题围绕教学系统的研发,完成了机床的三维建模、动画制作、虚拟建模、虚拟拆装、数据手套调试、三维立体显示等研究工作,具体内容如下:(1)三维建模:运用Auto CAD和Solidworks软件,完成了机床的总体方案设计。确定了机床的主要部件十字滑台、立柱、主轴箱、刀库等部件的结构。并用Solidworks软件建立了机床的三维模型。(2)动画制作:分析了机床各部件的结构与工作原理,编写了部件的拆装流程图和工作原理图。运用Deep Exploration软件完成部件的展示动画,自动拆装动画,工作原理动画等。(3)虚拟建模:将机床三维模型导入到Creator软件中。在Creator界面中,对零件进行节点编制,并赋予各零件以统一规范的编程代号。(4)虚拟场景:在Vega Prime中构建虚拟场景。把虚拟模型导入到场景中。设置虚拟场景中的光源,视点,碰撞检测等参数。(5)虚拟拆装:分析机床部件的拆装过程,编写虚拟拆装顺序表。用VC++编程完成部件的虚拟拆装程序。(6)系统软件:运用PS技术和VC++编程,构建虚拟现实教学系统的总程序和主界面,并把动画模块和虚拟拆装子程序导入到总程序中,完成教学系统的软件部分。(7)硬件配置:为系统配置立体显示、输入、音效等硬件设备,强化了系统的性能。实现了鼠标交互,三维鼠标交互,数据手套交互三种交互功能。开发了显示屏显示,投影屏显示,头盔显示三种立体显示方式。
[Abstract]:With the rapid development of computer technology, traditional laboratory teaching can no longer meet the needs of the times. So the teaching method of virtual laboratory arises at the historic moment, and the virtual reality teaching system of high-speed NC machining center is a brand-new teaching method. "Virtual reality teaching system of high speed NC machining center" is a three-dimensional visual teaching system with interactive performance, which takes NC machining center machine tool as an example and uses virtual reality technology to set up a three-dimensional visual teaching system with interactive performance. High-speed vertical machining center has been listed in the national high-grade CNC machine tools and basic manufacturing equipment science and technology major special. The application of virtual reality technology to the high-speed NC machining center will provide a realistic, dynamic and visual teaching environment for the teaching of machine tools, and promote the major changes in the teaching of machine tools. The teaching system is oriented to the research and development of mechanical specialty in colleges and universities. The system can be used in teaching, experiment and scientific research, and has high practical value. Based on the research and development of teaching system, the research work of three-dimensional modeling, animation, virtual modeling, virtual disassembly, data glove debugging, three-dimensional display and so on has been completed. The main contents are as follows: (1) three-dimensional modeling: using Auto CAD and Solidworks software, the overall design of the machine tool is completed. The structure of the main parts of the machine tool, such as cross slide table, post, spindle box, tool bank and so on, is determined. The three-dimensional model of the machine tool is established by using Solidworks software. (2) Animation: the structure and working principle of each part of the machine tool are analyzed, and the flow chart and working principle diagram of parts disassembly and assembly are compiled. Deep Exploration software is used to complete the display animation, automatic disassembly animation, working principle animation and so on. (3) Virtual modeling: three-dimensional model of machine tool is imported into Creator software. In the Creator interface, the nodes of the parts are compiled, and each part is given a unified programming code. (4) Virtual scene: constructing the virtual scene in Vega Prime. Import the virtual model into the scene. Set the parameters such as light source, viewpoint, collision detection and so on in virtual scene. (5) Virtual disassembly: analyze the disassembly process of machine tool parts, and compile the virtual disassembly sequence table. (6) system software: using PS technology and VC programming to construct the main program and main interface of virtual reality teaching system, and import the animation module and virtual disassembly subprogram into the main program, and use VC to complete the virtual disassembly program. (6) the system software uses PS technology and VC programming to construct the main program and main interface of the virtual reality teaching system. Complete the software part of the teaching system. (7) hardware configuration: the system is equipped with hardware equipment such as stereoscopic display, input, sound and so on, which enhances the performance of the system. Realized the mouse interaction, three-dimensional mouse interaction, data glove interaction three interactive functions. Developed display screen, projection screen display, helmet display three kinds of stereoscopic display mode.
【学位授予单位】：陕西科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TG659;TP391.9

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