Lan Shitao, Wang Wen, Dai Xiaohua, Qin Xing, Chen Zichen (Institute of Production Engineering, Zhejiang University, Hangzhou 310027, China) made some analysis and discussion on the research and development of reconfigurable CNC system.
Because CNC machine tools have the characteristics of strong adaptability, high processing precision, good quality and high processing efficiency, they have been widely used. CNC technology has become the most important technical foundation in modern advanced manufacturing technology and has become an important component of today's advanced manufacturing technology. section. However, most of the hardware and software of the CNC system (represented by FANUC, SIEMENS, etc.) on the market today are dedicated and incompatible, and the system architecture is not the same, which results in different manufacturers' control systems. Relatively independent and closed to each other. With the advancement of technology and the intensification of market competition, this special-purpose CNC system has increasingly exposed its inherent defects.
Fund Project: Zhejiang Provincial Natural Science Foundation Project (599026), Zhejiang Science and Technology Plan Key Project (00110106-a).
The large current should be greater than 200A. The response time of the WDTS device corresponding to such output characteristics is about 10is, which can meet the dynamic requirements of the trimming system. To this end, the main performance of the developed driver power supply is as follows: (1) the voltage is continuously adjustable from 0 to 300V; (2) the resolution is 100V; (3) the output stability of the power supply is high, the output voltage ripple is small, and the temperature drift is small; ) can achieve automatic control.
3 Practical application In order to test the performance of this finishing system, the online dressing processing experiment of MEEC grinding wheel was carried out on the MEEC processing system developed by ourselves. The system mainly includes: a multi-functional composite grinding machine developed by itself (can realize the combined processing of outer circle, plane, inner circle and tool).
Multi-purpose composite electric machining pulse power supply (can realize power supply to processing circuit and grinding wheel trimming circuit; pulse frequency and pulse width of power supply can be adjusted; power is high and efficiency is high; application results show that the system can be well formed into MEEC grinding wheel online Automatic trimming, high precision, good reliability, responsive, small size, beautiful appearance, can be used as an important accessory for MEEC processing systems.
(Finish)
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