引言重型落地式数控铣镗床为机、电、液一体化技术密集型产品,其性能要求可实现五轴控制、可加工带有复杂曲面的大型工件,属于机械加工行业里的高性能、高效率、较高精度的关键重大装备。目前,此类产品电控部分基本依赖国外进口。在保证性能的前提下实现国 Introduction Heavy Floor CNC Milling and Boring Machine is a technology intensive product integrating machine, electricity and liquid. Its performance requirements can realize five-axis control and can process large workpieces with complicated surfaces. It belongs to the high performance and high efficiency in the machining industry , The key high-precision major equipment. At present, the electronic control of these products basically rely on foreign imports. In the premise of ensuring the performance of the country