| At present,the "Industry 4.0" and "Made in China 2025" strategies are getting hotter,and many traditional machinery manufacturing industries are actively responding to changes.Deep hole machining is widely used in key technology industries such as aerospace,high-speed railway,automobile manufacturing,etc.However,due to its large area of deep hole machine tools,high experimental costs and low experimental safety,universities and enterprises rarely open Deep hole machining training courses have caused a large loss of technical personnel engaged in deep hole machining.At the same time,traditional deep hole processing courses use textbooks,multimedia textbooks,etc.These traditional methods are generally interactive and immersive,which makes it difficult to raise users’ interest in learning.In order to solve this problem,this paper takes deep hole machine tool as the research object and completes the research and design of virtual deep hole machining system based on virtual reality technology.Firstly,the processing principle of the deep hole machine tool is analyzed,and the technical parameters and basic structure of the deep hole machine tool are obtained,and then the three-dimensional model of the deep hole machine tool is drawn by Solidworks using the T2120 deep hole machine tool as a prototype and accurately assembled;Add special effects such as material and rendering to the 3D model of deep hole machine tools.On this basis,the virtual reality engine tool Unity3 D is used to create a virtual scene of the deep hole machine tool.By adding various components,editing scripts,and designing the user’s UI interface,the real roaming of the scene during the deep hole machining process is realized;The processing method during the hole processing.In addition,this paper designs a prediction model of temperature and force for cutting temperature and cutting force during machining.At the same time,the characteristics of the bounding boxes at various levels are studied and an optimal collision detection algorithm is selected.A cutting algorithm thatintersects the tool and the workpiece is designed according to the characteristics of hole machining.Finally,the system is equipped with a deep hole cognition module and a cutter bar disassembly module,which allows users to better learn the deep hole processing system through the cooperation of mouse and keyboard.After learning,users can verify what they have learned through the assessment management module.Practice has proved that the virtual simulation system of deep hole machine tool designed in this paper is easy to learn and use,friendly interface and strong immersion.It enables students to quickly understand the basic principles,assembly and structural characteristics of deep hole machine tools,solves the problems of low safety and low participation in the experimental process of the project,and the difficulty of carrying out physical teaching experiments.Distinctive features.The research of this subject provides reference value for the virtual simulation design of other processing machine tools in the manufacturing industry,and also promotes the development of training personnel for deep hole machining in China. |