The rolling function components, such as ball screw pairs and rolling guide pairs, are essential elements in modern machinery. They offer advantages like low friction, smooth operation, high speed, and strong rigidity. These features make them crucial for the development of the equipment industry and for enhancing national defense and economic strength. Although steel balls may seem small, their applications in the industrial economy are vast and indispensable. Whenever there is a need for efficient power transmission, rolling components play a vital role. In essence, the economic development of rolling functional components acts as an "essential ball" that technically reduces friction.
In the context of the new stage of national economic development, CNC machine tools have become one of the most popular machines in the market. From a certain perspective, CNC machines consist of the mainframe, CNC system, rolling components, and mechanical foundation. The numerical control system functions as the brain and nervous system, while the rolling functional parts act as the blood vessels. Therefore, these components are key basic elements in CNC machine tools.
According to statistics from the China Machine Tool Industry Information and Rolling Components Industry Association, in 2002, the domestic demand for rolling elements reached 400 million yuan, with about 300 million yuan produced domestically and 100 million yuan imported. By 2003, the total demand was expected to exceed 500 million yuan. Based on the country's "Fifteenth Five-Year Plan," the average annual growth rate is projected at 15%. By 2006, the total domestic demand for rolling elements is expected to surpass 1 billion yuan.
Rolling components and CNC machine tools complement each other. A critical condition for the development of rolling functional components is the improvement of their own manufacturing capabilities. The technological level of equipment, the degree of numerical control, and the advancement of processes directly influence the production level and efficiency of rolling elements. The manufacturing of rolling components cannot be separated from the application of CNC machining technology and breakthroughs in advanced techniques.
In short, improving the equipment level of the rolling functional component manufacturing industry is a top priority. Additionally, the industry must enhance its ability to respond quickly and provide more high-tech products to the market, especially emphasizing the application of computer technology. Computer and information technologies have brought significant economic benefits by shortening product development cycles, increasing resource utilization, reducing costs, and enhancing market resilience.
Based on existing networks and CAD/CAM applications, companies should focus on establishing an ERP information management system, strengthening enterprise informatization, and ultimately implementing a manufacturing management system and quality assurance system centered on computer technology and advanced methods.
High-tech rolling functional components, such as high-speed linear guides, are increasingly important as CNC machines move toward higher precision, speed, and environmental friendliness. At present, the line speed of domestic rolling elements is around 20 m/min, while the demand for elements with speeds between 40-60 m/min is growing. The next phase of development focuses on high-speed linear guides capable of reaching 80 m/min.
In terms of precision, domestic ball screws can achieve P1 accuracy, meeting the needs of most precision machining centers. However, compared to foreign standards, there is still a gap, especially in large-scale rolling elements. To bridge this gap, the industry must adopt new technologies, processes, and materials. One internationally recognized process involves replacing traditional grinding with rolling and rotary milling, which improves precision, efficiency, and surface finish.
Zhang Jianping, director of Nanjing Technology Equipment Manufacturing Plant, emphasized the company’s confidence in expanding the rolling component industry. This confidence stems from a solid foundation, including advanced production and testing equipment, comprehensive design capabilities, and a strong domestic market presence. The company has also invested heavily in technological upgrades, introducing advanced machinery to match international standards.
Looking ahead, the industry must continue to upgrade its technology, improve product quality, and reduce costs. With joint efforts across the machine tool industry, it is possible to achieve high-precision, high-quality, and high-performance rolling components, making the Chinese rolling component industry a shining pearl in the industrial economy.
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Mianyang Xinyu Agricultural Machinery Manufacturing Co., Ltd , https://www.xypressring.com