虚拟仿真技术在超精密加工实验教学中的应用

Application of Virtual Simulation Technology in Experimental Teaching of Ultra-precision Machining

依托单点金刚石超精密加工机床Freeform L,运用信息化技术进行了超精密加工虚拟仿真实验平台的设计。虚拟实验平台涵盖了刀具偏置校正、动平衡测试、加工程序自主编写、正式加工、在线测量、迭代补偿加工等多个交互模块。利用此实验平台,配合改进的教学方法,能使学生在较短时间内掌握超精密加工技术的基本原理和加工工艺流程,培养学生的综合创新能力及实践动手能力,实现超精密加工技术从设计加工到结果检测完整工艺过程的线上教学。该虚拟实验不但可使学生了解前沿知识与先进技术,大幅降低超精密加工实验教学的成本,而且易推广使用,方便自主学习及教学,为高精尖工程技术人才的培养提供一种新方法。

Relying on Freeform L,a virtual simulation experiment platform is built for single point diamond ultra-precision equipment,it contains multiple interaction modules as tool offset correction,dynamic balancing testing,independent preparation of processing procedures,formal processing,online measurement,iterative compensation control.Through this platform,combined with advanced teaching methods,students can master the basic principle and processing process of ultra-precision machining technology in a short time.It cultivates students’comprehensive innovation ability and practical ability,and truly realizes the online teaching of the complete process of ultra-precision machining technology from design and processing to testing.It can not only make the student get in touch with the frontier knowledge and advanced technology as soon as possible,but also greatly reduce the cost of ultra-precision machining experiment teaching.It is easy to use,convenient and autonomous learning and teaching,can provide the technical guarantee for the training of our country’s high precision engineering and technical personnel,and is of great significance to the development of China’s ultra-precision machining technology.