Domestic CNC machine tool control system is weak

The core technologies of high-performance CNC systems, electric spindles, nano-precision gratings and other functional components and complete machine design and manufacturing are the most critical factors for the development of high-end CNC machine tools.

The numerical control system is equivalent to the brain of a CNC machine tool and accounts for one-fifth of the value of the entire machine. Its role is to translate the user-defined processing target into specific processing steps and direct the machine tool. At present, many manufacturers of CNC machine tools in China purchase foreign CNC systems and integrate them with their own machine tools.

According to reports, in recent years, domestically produced low-end CNC systems have basically pushed foreign competitors out of the Chinese market, while the high-end market is just the opposite, with domestic production accounting for less than one-tenth. The market for high-end CNC systems is basically in the hands of manufacturers such as Fanuc and Siemens.

Foreign high-end numerical control systems perform better in high-speed and high-precision performance, as well as in five-axis machining and intelligence than domestic products, and their average time between failures is four times that of domestic products.

The system architecture, hard and soft components, and high-speed and high-precision algorithms all require long-term research and improvement. The backwardness of the domestic electronics industry has determined the weak performance of China's high-end CNC systems.

In addition to the gap in the level of CNC systems, the weakness in the key component areas has also limited the height of domestic machine tools. In some machine tool exhibitions, domestic high-end machine tools that use Fanuc or Siemens CNC systems can also be seen. Compared with foreign machines equipped with the same “brains”, the rotational speed is only one-third of that of foreign countries, and the error range is 5 for others. Times.