The development of virtual CNC technology With the development of CAD / CAM technology and the improvement of CNC machine tool performance and component complexity, NC programs have become more and more complex, CNC machining programming is becoming more and more difficult, and the failure rate of NC programs is also increasing. Higher and higher. The machining parts of CNC machine tools are controlled by CNC command program. In the NC machining process, no matter what system is used to program the NC program, errors may occur. Therefore, before the parts are processed, it is necessary to check and adjust the instruction program multiple times to verify the correctness of the program. In order to check the correctness of the NC program and prevent the interference and collision of the machining process, the trial cutting method and the trajectory display are often used. law. The trial cutting method is costly and expensive, which prolongs the production cycle of the product. When using the trajectory display method, the motion is limited to the plane, and the limitation is great. Both of them have great shortcomings, which are not suitable for the high efficiency trend of current CNC machine tools. To this end, people have been studying computer simulation methods that can replace traditional methods. With the development of computer technology, CAD/CAM technology, computer graphics and system simulation, people establish the mapping of CNC machine tools in the virtual environment of computer, realize the virtual design and processing of CNC machine tools, namely virtual CNC technology. Using computer to simulate CNC machine tools, it can realize the whole process of CNC machine tool processing in the numerical control of mechanical parts under virtual environment, verify the correctness of NC machining methods and procedures, and analyze the rationality of parts processing technology. Prevent collisions and interference. The virtual CNC system's content virtual CNC system includes two parts: virtual machining environment and virtual machining process. Such as the simple overall structure of the virtual CNC system. Virtual CNC system overview Virtual CNC technology application research Machine tool electrical virtual processing environment Virtual machining environment including machine tool interface, machine tools, blanks and other components. The virtual operation interface of CNC machine tools can be realized by computer programming language, such as VB, VC and so on. 3D modeling of machine tools, blanks and tools can be done using OpenGL technology, or it can be modeled using existing 3D modeling software such as CAD/CAM. Image Dynamic Simulation Technology In a sense, the dynamic simulation of CNC machining process uses animation and computational visualization techniques to describe the actual machining process. The dynamic graphic simulation technology of the machining process has become an important means of tool position verification in the image NC programming system. The basic idea is to use a specific modeling technique to establish the geometric model of the blanks, fixtures and tools of the machined parts, and then to perform the fast Boolean operation on the blanks of the machined parts, the geometric model of the fixture and the geometric model of the tool, and finally use the realism. Graphic display technology dynamically displays the part model, fixture model and tool model during the machining process to simulate the actual machining process of the part. Its characteristic is that the simulation process has a strong sense of reality, and basically realizes the verification effect of the trial cutting process. The animation display of the numerical control simulation system image is mostly used in the CNC geometric simulation system. In a numerical control simulation system, when the geometric model of the machining environment, tools and fixtures is established, the data structure required for the animation movement can be obtained. In order to make a complete animation frame, only a certain control of the motion, that is, the analysis of the motion data and the generation of the motion trajectory, has been widely used in the tool path trajectory simulation. Another key technology to achieve animation and visualization results is blanking shading, which is mostly used for processing products and simulation data verification. Through the corresponding processing algorithms, we can see the calculation results and the final product image through the simulation system. At present, various technologies have the trend of network and integration. The virtual CNC system based on network will become a research direction, which has great practical significance for remote control or remote teaching and training of CNC machining. On the other hand, with the development of computer technology, the virtual reality will increase, and the virtual environment will be closer to the real CNC machining environment. Mechanical simulation is the main development direction of virtual CNC technology in the future, which plays an important role in optimizing processing parameters. (Finish) Threaded Nipple,Forged Nipple,Stainless Steel Forged Ruiye Mechanical Co., Ltd. , http://www.china-stainlesssteelflange.com