数控文件（Nc file）.docVIP

数控文件（Nc file） Nc machine tool of flexible automation for its excellent performance, excellent and stable precision, ling jie and diverse functions cause attention, it created a mechanical products to the development of electromechanical integration, become a core technology of advanced manufacturing technology. The technological advance of numerical control system has provided the conditions for the technological progress of nc machine tools. At present, the development of CNC machine tools is mainly embodied in the following aspects: 1. High speed and efficiency The development of machine tool to high speed can greatly improve the processing efficiency, reduce the processing cost, and also improve the surface processing quality and precision of the parts. Ultra-high speed processing technology has wide applicability to manufacturing high efficiency, high quality and low cost. Since the 1990s, Europe, the United States and Japan have competed to develop and apply a new generation of high-speed CNC machine tools to accelerate the development of machine tools. High-speed spindle unit, motorized spindle rotational speed (15000-100000 r/min), high speed and high speed plus/minus the feed movement of parts (fast moving speed of 60 ~ 120 m/min, cutting feed rate is as high as 60 m/min), high performance CNC and servo system and nc tool system is a new breakthrough, reached a new technical level. With ultra high speed cutting mechanism, hard abrasive resistant long life of cutting tool materials and abrasive abrasive, high power high speed motorized spindle, high speed feed unit driven by linear motor plus/minus and high-performance control system (including monitoring and control system) and protective device and a series of the solution of the key technologies in technical areas, for development and application of a new generation of high speed CNC machine tool provides technical basis. At present, the cutting speed of turning and milling has reached 5000 ~ 8000m/min in