Research On Key Technologies Of High-performance Five-axis CNC

As an important symbol of measuring a country’s level of manufacturing technology, CNC technology has been developed rapidly towards multi axis, high speed and high precision. The traditional three-axis machine tools can not meet the needs of Multi-faceted and complex parts’processing for aerospace and shipbuilding industry. The multi-axis development of CNC machine tools is an inevitable trend to meet the needs of various industries’ rocessing of complex parts. The development of high-speed control system is a guarantee to meet market demand, because the current market situation proved that the low-speed machining centers is difficult to meet the requirements of efficient processing. High precision is a key indicator of manufacturing level and the control technology of high precision is the bottleneck to enhance the CNC technology.The propulsion of high-performance5-axis CNC technology is not only the requirement of the time, but also the need of the market. For the high-performance processing, the research focus on the design of multi-axis motion control algorithm and the optimization of the communication module to achieve high speed, high precision and smooth motion.In this paper, to fulfill the goal of High-performance five-axis machining, five-axis motion control interpolation algorithms, inflection point processing algorithms and linkage equal shares algorithms are designed; The real-time compensation RTCP algorithm to improve the processing efficiency is proposed and the bus communication module to improve the communication efficiency is upgraded. Based on MACHATROLINK-Ⅲ field-bus hardware requirements, the driver software is combined in the DSP motion control system module and the speed of M-Ⅲ field-bus is up to100Mbps at current. Finally, the G code program editing method of a typical five-axis machining impeller is introduced, a five-axis simulation platform based on the experimental machine hardware architecture is built, and the actual processing of the typical five-axis impeller is implemented, ultimately, the results have been used in the SDS9-6CNCH2NC system of the cooperative enterprise.