China's high-end CNC machine tools are in a weak position
The development of many key industrial products depends on the development level of high-end CNC machine tools. Zhang Wei, professor of Tongji University and honorary director of the Institute of Modern Manufacturing Technology, said in an interview. In recent years, with the sharp increase in the demand for important equipment manufacturing industries such as national defense, aviation, high-speed rail, automobiles and molds, China's CNC machine tools have also achieved rapid development, but in the case of high-end products still facing a situation of weak competitiveness, CNC machine tools need to make breakthroughs quickly.
The level, variety and production capacity of CNC machine tools directly reflect the country's comprehensive strength. In the past five years, the average annual compound growth rate of CNC machine tool production in China was 37.39%. He Danyang, a researcher in the CNC machine tool industry of Qianjin Industrial Research Institute, pointed out that under the current industry, the average annual growth rate of CNC machine tools in China will exceed 10%. By 2015, the national CNC system demand will reach 400,000 sets, and annual sales will reach 850 billion yuan.
In an interview with reporters, Li Peijuan, an analyst of the CNC machine tool industry, said that in the process of digitalization and intelligent transformation, the manufacturing industry has higher requirements for the performance of equipment components, including precision and surface quality. Especially in some high-tech industries, such as aerospace, communications and so on. The change in technology demand in the downstream market poses new challenges to the development of the CNC machine tool industry. If the technological development of CNC machine tools can adapt to the needs of the transformation and upgrading of the manufacturing industry, it can play a role in promoting, and vice versa will restrict its development. Li Peijuan said.
After years of development, China's CNC machine tool technology has made remarkable progress and a series of breakthroughs in high-speed, composite, precision, multi-axis. For example, at the 12th China International Machine Tool Exhibition held in Beijing in April 2011, the qmk009 CNC arc bevel gear grinding machine exhibited by Taichuan Machine Tools Group abandoned the use of traditional cylindrical grinding wheels. The method uses a finger-shaped grinding wheel or a small-diameter disc-shaped grinding wheel to grind a large curved bevel gear along a tooth profile through multi-axis linkage. Zhang Wei said: This new product has subverted the principle of traditional curved bevel gear processing and the concept of machine tool design. It is a soft victory and a breakthrough. It is an example of original innovation, which not only becomes one of the core competitiveness of enterprises, but also makes China enter The world's first large hard tooth surface bevel gear processing.
For the situation that China's high-end CNC machine tools are not competitive, Zhang Wei believes that only basic research is not enough. Many companies only care about manufacturing machine tools, but they don't have research and development capabilities. More attention should be paid to the issue of talent. The non-engineering of engineering education in China now makes us cultivate talents with less engineering practice knowledge and weaker innovation ability. This makes China's high-end CNC machine tools rely heavily on imports and is technically subject to people. For example, some of the key software of foreign high-end five-axis linkage machine tools are restricted to export to China, and even the use department and installation location are limited.
Most domestic machine tool companies care about how to grow bigger. The number of people is thousands of people and tens of thousands of people. Foreign companies are more inclined to pursue technology, that is, to make their products indispensable in the manufacture of other products. Zhang Wei said. In his view, the current competition mechanism of Chinese machine tool enterprises mainly relies on price and quantity to win, lacking core technology. As the cost of labor and raw materials increases, the profits of enterprises will become thinner and thinner. Therefore, the competition mechanism needs to be changed. In addition, national policies have an important impact on the technological development of the CNC machine tool industry. Li Peijuan told reporters that although the country introduced special plans for the development of the CNC machine tool industry in 2005 and 2011 respectively, the support is still insufficiently insufficient. Therefore, the support of national policies needs to be further strengthened.
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