China's high-end CNC machine tool technology has made great progress in recent years, and many breakthroughs in core technologies have enhanced the competitiveness of the Chinese machine tool industry in the international market. However, it is undeniable that there is still a big gap between the domestic machine tool industry and the international advanced level.
Some key technologies, such as: high-speed and high-precision motion control technology, dynamic comprehensive compensation technology, multi-axis linkage and composite machining technology, intelligent technology, high-precision direct-drive technology, reliability technology, etc. still need to further breakthrough, some major technologies from the industry There is still some way to go. The technical problems that need to be solved mainly include the following aspects:
(1) Improve product reliability. Reliability is a guarantee for improving product quality and production efficiency. At present, the research and development of domestic CNC machine tools are mainly oriented to high-grade, and pursue high-speed, precision and multi-axis linkage machining. Although many products have reached or even exceeded the first-class enterprise products in the same industry in terms of functions and specifications, the stability and reliability of the products are still relatively poor. With the increase of complex functions and the introduction of intensive technologies, unreliable factors and hidden troubles have increased, resulting in a low market share and weak competitiveness. The reliability of CNC machine tools involves all parts of the factory such as design, testing, manufacturing, assembly, supply, and after-sales service of the production plant. It involves suppliers of accessory parts and external parts, and also relates to machine tool users. This is a Systems engineering that requires multiple departments to work together. Enterprises and even the entire industry need to improve the reliability of products to solve the problem of “likeness and appearance†and improve the overall market competitiveness of products.
(2) Heavy-duty CNC machine tools have higher quality and higher levels, and they must focus on solving several key common technologies: overall machine optimization design technology; typical motion reliability design; reliability growth and growth test technology; high-speed spindle dynamic stiffness and bearing thermal balance System and dynamic balance research; high-speed feed dynamic test, forward-looking control, steady acceleration control technology; automatic on-line measurement, error compensation technology; long stroke and gapless transmission technology and other technical issues.
(3) Improve the speed and accuracy of the core transmission components, as well as the manufacturing process level and quality of the entire machine tool. Through increasing research and development efforts, optimizing technological methods, strengthening scientific research and testing, upgrading information methods, and accelerating improvement and upgrading, etc., CNC machine tool manufacturing and quality are improved.
(4) Establish a research and development system that combines enterprise as the main body, market orientation, and production, education and research to improve the industry's independent innovation capability. We must solidly promote industrialized base projects; cooperate with universities, advance production with advanced technologies, consolidate academic theories with production practices, promote technological innovation with academic theories, cultivate strong technical teams for talents, and take the direction of market development as the direction to increase the market. Resilience and possession.
Some key technologies, such as: high-speed and high-precision motion control technology, dynamic comprehensive compensation technology, multi-axis linkage and composite machining technology, intelligent technology, high-precision direct-drive technology, reliability technology, etc. still need to further breakthrough, some major technologies from the industry There is still some way to go. The technical problems that need to be solved mainly include the following aspects:
(1) Improve product reliability. Reliability is a guarantee for improving product quality and production efficiency. At present, the research and development of domestic CNC machine tools are mainly oriented to high-grade, and pursue high-speed, precision and multi-axis linkage machining. Although many products have reached or even exceeded the first-class enterprise products in the same industry in terms of functions and specifications, the stability and reliability of the products are still relatively poor. With the increase of complex functions and the introduction of intensive technologies, unreliable factors and hidden troubles have increased, resulting in a low market share and weak competitiveness. The reliability of CNC machine tools involves all parts of the factory such as design, testing, manufacturing, assembly, supply, and after-sales service of the production plant. It involves suppliers of accessory parts and external parts, and also relates to machine tool users. This is a Systems engineering that requires multiple departments to work together. Enterprises and even the entire industry need to improve the reliability of products to solve the problem of “likeness and appearance†and improve the overall market competitiveness of products.
(2) Heavy-duty CNC machine tools have higher quality and higher levels, and they must focus on solving several key common technologies: overall machine optimization design technology; typical motion reliability design; reliability growth and growth test technology; high-speed spindle dynamic stiffness and bearing thermal balance System and dynamic balance research; high-speed feed dynamic test, forward-looking control, steady acceleration control technology; automatic on-line measurement, error compensation technology; long stroke and gapless transmission technology and other technical issues.
(3) Improve the speed and accuracy of the core transmission components, as well as the manufacturing process level and quality of the entire machine tool. Through increasing research and development efforts, optimizing technological methods, strengthening scientific research and testing, upgrading information methods, and accelerating improvement and upgrading, etc., CNC machine tool manufacturing and quality are improved.
(4) Establish a research and development system that combines enterprise as the main body, market orientation, and production, education and research to improve the industry's independent innovation capability. We must solidly promote industrialized base projects; cooperate with universities, advance production with advanced technologies, consolidate academic theories with production practices, promote technological innovation with academic theories, cultivate strong technical teams for talents, and take the direction of market development as the direction to increase the market. Resilience and possession.
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