Development Of Five-axis Short Electric Arc Machining Dedicated CNC System

Short electric arc processing technology is a new type of special electrical processing technology rising in recent years, has offered cost-effective solution to a variety of new special hardness, high wear resistance, especially brittle specialty materials processing problem targeted. Its high processing efficiency and low cost is deeply Recognized in the industry,therefore also has a great prospect in the field of space.The advantage of short electric arc processing technology is its single pulse energy, and the material removal rate is high, especially for machining super-hard conductive hard material,but short electric arc processing has a not very good surface quality and more tool electrode wear than other processing methods.The characteristics of a short arc technology, processing principles and problems existed, and combined with huazhong type 8 CNC system structure on the whole scheme is illustrated. The present paper has introduced the overall plan overall semal five-axis short arc machining processing technology and motion control of CNC system and the required numerical control device and software structure, and then according to the actual requirements of machine tool is given square design; Of short arc machining tool cathode electrode wear in the process of the cause of the illustrated, expounds a variety of factors by experiment on the influence of the cathode tool electrode wear, analyzed the processing process on the importance of the real-time compensation; Of the cathode electrode wear testing and offers a variety of solutions and the principle of real-time compensation, and by determining the final plan; The short arc machining nc system and PLC programming programming development, introduced the motor control module, complete the special interface of monitoring parameters and Settings, the short circuit in the process of machining intelligent coping mechanisms, and add the oscilloscope data sampling and data storage and management functions, for the short arc technology provides data to support further research.