Preliminary research on reconfigurable CNC system based on modularization
Because Cnc Machine tools have the characteristics of strong adaptability, high machining accuracy, good quality, and high machining efficiency, they have been widely used. CNC technology has also become the most important technical foundation of modern advanced manufacturing technology and an important component of today’s advanced manufacturing technology. part. However, most of the hardware and software of CNC systems (represented by FANUC, SIEMENS, etc.) on the market are dedicated and incompatible with each other, and the system architectures are 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, the CNC system of this special architecture has increasingly exposed its inherent defects.
The large current should be greater than 200A. The response time of the WDTS device corresponding to this output characteristic is about 10is, which can already meet the dynamic requirements of the trimming system. For this reason, the main performance of the developed drive 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; (4) ) Can realize automatic control.
3 Practical application In order to test the performance of this dressing system, an online dressing experiment of MEEC grinding wheels was carried out on the self-developed MEEC machining system. The system mainly includes: self-developed multifunctional compound grinder (which can realize compound processing of outer circle, plane, inner circle and tools).
Multi-purpose composite electric machining pulse power supply (can realize the power supply to the machining circuit and the grinding wheel dressing circuit; the pulse frequency and pulse width of the power supply are adjustable; the power is high and the efficiency is high; the application results show that the system can well become the online MEEC grinding wheel Automatic trimming, high precision, good reliability, sensitive response, small size, beautiful appearance, can be used as an important accessory of MEEC processing system.
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