Domestic CNC processing equipment ready to go

The symposium on the domestically-manufactured CNC machine tools used in the military industry and energy equipment fields was held in Beijing some days ago. The reporter learned from the meeting that in the past year, the organizer has promoted manufacturing by guiding machine tool companies to military companies, energy companies and other user companies to research and professionally “professional”. The company's high-end research and development capabilities have better achieved supply and demand.

Why do not domestic equipment? Over the years, this issue has been plaguing domestic equipment manufacturing companies. Driven by independent innovation, part of high-end domestic equipment has been gearing up for more fields. However, even if the price advantage is obvious, many user companies are still unwilling to "risk" to use domestic goods. How to build a mutual understanding and choice platform for both is particularly important.

At the meeting, Wang Weiming, Deputy Director of the Department of Equipment Industry of the Ministry of Industry and Information Technology, stated that in 2013, special projects for high-end numerical control machine tools and basic manufacturing equipment (hereinafter referred to as machine tool special projects) will closely focus on three key areas: automobile engine manufacturing, aerospace structural component manufacturing, and aero-engine manufacturing. , All relevant topics have comprehensively put forward requirements for quantitative indicators such as reliability test statistics, and promote domestic high-end CNC machine tools to enter the market through special management measures.

Military users put forward four major issues

As a spokesperson for the user side, Li Donghai, chairman of the China Association for the Peaceful Use of Military Technology, said that last year, the National Bureau of Science and Technology of the People's Republic of China conducted an in-depth investigation of the use of domestic CNC machining equipment. The results show that although the current use units have a positive attitude towards the rapid development of domestic CNC machine tools, it is generally felt that the overall technological development capability and technical foundation of domestic CNC machining equipment is still relatively weak. The degree of application of information technology is not high, and foreign companies are still in control of some core technologies. The degree of dependence on foreign technology is still relatively high. The digestion of imported technologies has not risen to the point of developing products with independent development capabilities and technological innovation capabilities. The reliability, stability, multi-functionality, flexibility, and intelligence are relatively large compared with foreign equipment. High-end practical processing equipment is basically still unable to get rid of the dependence on imports.

Specifically, domestic CNC machining equipment has the following problems in accomplishing military research and production tasks:

First, the lack of core technologies restricts the overall level of development. The core technology of CNC machining equipment, CNC system currently has more than 80% need to import from abroad, key components such as spindle components, rolling screws, linear guides and other key technologies rely mainly on imports.

The second is that the multi-axis linkage complex machine tool is not yet mature. Although such equipment can be provided in China, most of them belong to major special research and development and research products, and they are not truly commercialized. Users cannot see the precedent for success. Many problems have been exposed in the first application of the first set, and some have even been debugged. Frequent problems occurred during the period, which caused certain risks for the completion of military construction tasks.

Third, reliability and accuracy maintenance are difficult to meet. Military research and production have generally higher reliability requirements for equipment. Generally, the average time between failures of CNC systems is more than 20,000 hours, and the average time between failures of foreign CNC systems is between 70,000 and 100,000 hours, and the mean time between failures of domestic CNC systems is relatively high. Only 10,000 hours. The average trouble-free working time of the whole foreign machine can reach more than 800 hours, while the domestic maximum is only 300 hours. Because the reliability is not high, the accuracy of the machine tool is difficult to maintain stably, resulting in an increase in the overall equipment error and failing to reliably meet the military processing needs.

The fourth issue is poor consideration for the maintenance of machine tools. The design of some domestically-manufactured CNC machining equipment is unreasonable, and the factors such as equipment safety protection and maintainability are not considered comprehensively. The alarm information is incomplete, many equipment failures have no alarm, or only alarm signals and no corresponding content prompts, which affects the efficiency of fault diagnosis; There is a phenomenon that the low-speed spindle has no safety interlocking function, which has a great influence on the safety of the equipment operation and maintenance personnel and the ease of operation.

In this regard, Wang Shunian, director of the National Economic Mobilization Office of the National Development and Reform Commission, believes that machine tool companies must effectively put the company in a position to solve practical problems and provide enterprises with high-quality products and services. It is necessary to provide technology, solutions and services for users by simply selling products. Military and energy equipment companies must treat domestically-made machine tool products objectively, make real demands, and boldly use domestic equipment to provide fair opportunities for domestic machine tool companies.

Machine tool specialization to achieve user traction

It is understood that the implementation of the "12th Five-Year" machine tool to implement the overall thinking of the user traction, to promote the application of organic integration of upstream and downstream industries. Insist on the implementation of the application demonstration project by the user to promote the integrated application of the phased results such as the machine tool host, the numerical control system, and the functional components completed in the previous research and development. Encourage equipment manufacturing companies and users to jointly develop equipment and complete production lines, and form a benign interaction between process research, manufacturing, system integration, and user use.

In the past decade, the output value of China's machine tool industry has leapt to the top in the world, and product structure adjustment has achieved initial results, and its international competitiveness has continuously improved. Wang Weiming believes that the tremendous achievements made by the industry cannot be separated from the support of users in key areas. Military enterprises and energy equipment manufacturing enterprises are major users of CNC machine tools and have played an important role in promoting the improvement of China's machine tool manufacturing level.

Wang Weiming pointed out that CNC machine specialization fully embodies the needs of key users in the deployment of tasks, and emphasizes the establishment of a technological innovation system that combines enterprise as the main body, market orientation, and the combination of production, study and research. All product-related topics clearly require companies to take the lead in organizing and implementing.

Among them, in the special projects that have been established, 71% of the enterprises take the lead. During the period from 2009 to 2013, special arrangements were made for 62 military industry projects with a total funding of 3.65 billion yuan. 34 computer-controlled machine tools and production line application demonstration projects for energy equipment manufacturing were planned, with a total cost of 293 million yuan.

It is understood that since the launch of the CNC machine tool special project in 2009, a total of 465 projects have been arranged for five years, with a total funding of 19.08 billion yuan. In particular, special projects are actively carried out by users of demonstration applications to promote a number of products into key application areas. For example, 10 domestically-made CNC machine tools specially supported by the eight aeronautical academies carried out batch production of lightweight high-strength material rockets, aerospace complex structures and components.

"The special deployment of user process testing and application demonstration projects, its important task is to promote the application of special research and development achievements in key industries, while promoting the industry's technological level of machine tools, and promote the interactive development of military and civilian industries." Wang Weiming pointed out that in order to deepen the machine tool The mutual understanding between users in the industry and key areas, with the assistance of the Machine Tool Association, specializes in the deployment of a series of process trainings for key user areas.

Wang Weiming said that since the long-term mechanism for the application of domestic CNC machine tools in the military and energy fields has been formed, the supply and demand sides have achieved great results through cooperation. The development of the machine tool industry has provided more and more advanced manufacturing equipment for the military and energy industries. Some products have begun to enter key manufacturing processes, providing technical support for technological progress in the military and energy fields. The users in the key areas have deepened their understanding of the advancement of China's machine tool industry through the application of domestically-manufactured CNC equipment and enhanced the confidence in the application of domestically-manufactured CNC equipment.