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Research and application of user interface design and application of missile radome CNC grinding machine Ji Tian, ​​Jiang Lianhui, Sheng Xianjun, Kang Renke (School of Mechanical Engineering, Dalian University of Technology, Dalian 116024), to ensure that the radome electrical thickness index meets the design requirements. According to the use requirements of the grinding machine, following the design principles and ideas of the user interface, the user interface of the missile radome CNC grinding machine tool was designed. According to the requirements of different modules, VisualBasic and Visual C++ are mixed and programmed to form a human-machine interface window. On the screen, the status information of the radome measurement processing, the axis coordinates of the grinding machine, the numerical control G code file during operation, etc. are displayed, and the calls to other system modules are encapsulated internally. In the actual radome grinding process passed the test.
There are two linear displacement axes (X and Z) and one rotary axis (0). IPC is used to implement functions such as background management scheduling and human-computer interaction interface (MMI). PMAC is used to execute the motion program released by the IPC of the host computer, realize the real-time coordinate motion control of the system foreground, control panel management, spindle control and other functions. PMAC itself has its own CPU to handle real-time tasks to ensure system stability and reliability, while users need a friendly human-machine interface to control and monitor the operation of the entire system.
1 Missile radome CNC grinding machine tool introduction The missile radome is not only an important part of the missile body, but also a component of the radar guidance system. It should also have good protection while ensuring the aerodynamic shape of the missile and protecting the internal radar components from damage. Electromagnetic wave transmission characteristics. The electrical thickness is the most important electrical performance index of the radome. The electrical thickness error of each point of the radome must be strictly controlled to meet the design requirements.
After semi-finishing of the radome, the aerodynamic shape has met the design requirements. However, due to the dielectric constant dispersion and geometric thickness deviation of the material, the electrical thickness index is difficult to meet the requirements. Therefore, the radome must be based on the electrical thickness error. The grinding correction is performed, that is, the inner surface is precisely ground according to the actual value of the inner surface of the radome and the corresponding point processing removal amount, and the dispersion of the dielectric constant of the radome material is compensated by changing the geometric thickness to ensure the wall of the hood. The electrical thickness error is within the allowable tolerances.
The CNC grinding machine for missile radome is part of the aerospace science and technology group's mission to develop high-altitude missile active seeker radome.
It is a large-scale thin-walled complex three-dimensional curved surface hard and brittle material grinding machine for the finishing of radome semi-finished products, which can quickly and accurately measure the inner surface of a specified type of radome and grind it according to the required removal amount at each point. Ensure that the radome electrical thickness index meets the design requirements.
Machine OPC) is an open control system for the system support unit. With the app!
The principle of data exchange between PCOM32 and PMAC PMAC provides users with PCOM32 dynamic link library to complete data exchange with the upper computer. The principle of data exchange between PCOM32 and PMAC is as shown. PCOM32 acts as a bridge between the user program and the PMAC card. The functions provided by the dynamic link library exchange data with the underlying virtual device driver, and then the virtual device driver directly exchanges data with the hardware. The PCOM32 dynamic library contains more than 200 library functions, and the data exchange between the PMAC and the host computer IPC can be conveniently realized by calling them. Beijing: Yuhang Industry 2 Guo Dongming, Sheng Xianjun, Xu Zhixiang and so on. Research on the control system of special grinding machine tool for missile radome 丨 J. Journal of Dalian University of Technology, 2002 3 Liu Jin, Ren Si. Improve the man-machine interface of a supercomputer in the mechatronics system 丨 J|. Manufacturing Technology and Machine Tools, 2002 4 Dong Shihai, Wang Jian, Dai Guozhong. Human-computer interaction and multi-channel user interface 丨M. Science Press, 1999 5 Huang Yonghong, Yang Dong, Tang Rongxi. Design and implementation of CAD user interface in Windows environment 丨 J. Computer-aided engineering, 19971 Machine tool: adjust the spindle clearance to improve bearing accuracy; adjust the skateboard plug iron to make the gap less than 0.04mm and make the movement smooth and light. 2 Tool aspect: Reasonable selection of tool geometry parameters, often keep the cutting edge smooth and sharp. Increase tool clamping rigidity. 3 workpiece: increase the clamping rigidity of the workpiece to avoid too long overhang. 4 cutting amount: use a smaller cutting depth and feed rate to change or reduce the cutting speed.