Exploration of intelligent manufacturing practice teaching mode based on the combination of virtual and reality
[Objective]Guided by the"Emerging Engineering"construction policy,universities around the country have successively developed several forms of practical training platforms.How to give full play to the unique advantages of the platform in practical teaching?How to avoid the phenomenon that the platform is merely a formality and students are not engaged in the practice?These practical problems are faced by the platform after its completion.Taking the intelligent manufacturing training platform built by the North China University of Technology(NCUT)as an example,this paper aims to discuss teaching methods combining virtual reality(VR)technology to improve the practical value of the training platforms.[Methods]The construction background,structure,and"one line-two areas"layout of the platform are introduced.The structure of the platform is divided into five layers:production equipment layer,functional module layer,network monitoring layer,control executive layer,and application software layer.The division into five layers is beneficial for offering courses to students with different majors.The layout of one line represents a production line that can produce customized products,and the layout of two areas includes a teaching area and a reverse design area.For example,VR technology is introduced into design,machining,coordination,and management links when producing hilts to enhance student engagement.Virtual environments consistent with the real environment of the four links are created using commercial software,including SolidWorks,MasterCAM,RobotStudio,and Unity3D.Following the training method,first,students familiarize themselves with the equipment,write programs in the virtual environment,and finally operate the equipment and run the programs on real platforms.The benefit of VR technology is that students can practice many times in the virtual environment without limitations of time and space.[Results]After the training,the students are required to accomplish a training report,which includes videos,photos,questionnaires,and other documents to prove achievement of the training.A teacher scores the students from the aspects of performance,attendance,and reports,and provides comprehensive results.After the establishment of the intelligent manufacturing training platform,training courses have been offered for more than 20 undergraduate majors in NCUT,and more than 4000 undergraduates participated in the training.The training results demonstrate that the approach for students to function as engineers in different links of production can help increase their engagement.[Conclusions]To promote the traditional manufacturing industry to become high-end,intelligent,and green,welding,casting and forging training in universities cannot match the needs of new industrial enterprises.Thus,training courses in universities must be adjusted in a timely manner.Through the introduction of VR technology and real products,students'practical ability,teamwork ability,and organizational leadership are improved effectively.Students gain an intuitive understanding of the production technology in intelligent manufacturing plants and can participate actively in them.The exploration of teaching methods in this paper provides a satisfactory reference for other colleges and universities that have built practical training platforms and are preparing to begin training courses.
intelligent manufacturingvirtual and reality combinationteaching methodengineering trainingEmerging Engineering
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