Application of domestic high-end CNC machine tools in the field of flying power

The editors are one of the 16 major national science and technology projects identified as the Outline of the National Medium- and Long-Term Scientific and Technological Development Plan (2006-2020). The “High-end CNC Machine Tools and Basic Manufacturing Equipment Major Projects” (04 major special projects) are domestic high-end equipment. Through the implementation of the “Twelfth Five-Year Plan” period, the breeding hotbed has made a series of major breakthroughs in domestic high-end CNC machine tools and technologies. Now it has the conditions for developing and producing the numerical control equipment needed to support the power of China's flying power plant. This article takes the 04 major project undertaken by 31 China Aerospace Science and Technology Institute, and the “Comprehensive Application Verification and Process Research Application Line of Domestic High-end CNC Machine Tools and Technology in the Field of Aerodynamics Engine Manufacturing” as an example. Work hard.
According to the major project of 04, by 2020, 70% to 80% of the high-end CNC machine tools and basic manufacturing equipment required for aerospace, shipbuilding, automobile and power generation equipment manufacturing will be based in China.
During the “Twelfth Five-Year Plan” period, the “high-end CNC machine tools and basic manufacturing equipment” major scientific and technological projects centered on key areas, and the system deployed key tasks such as mainframe, numerical control system and functional components, in major equipment, high-end CNC machine tools. The research on common technology of numerical control system has achieved certain results and initially met domestic demand.
Although some high-end CNC systems and machine tools have also formed certain demonstration applications in key manufacturing fields such as automobiles and power generation equipment, the scale and demonstration effects are far from the special requirements; the application demonstration in the aviation field has achieved good results, but The phenomenon that aviation military enterprises rely on imported machine tool products has not fundamentally changed.
Therefore, the demonstration application of domestic special-purpose numerical control system and high-grade numerical control system in the aerospace field, especially the complete solution for forming key components of the flight power plant, is to ensure the national strategic security; to further improve the domestic high-end five-axis CNC machine tools and high-end The technical level, reliability, ease of use and market share of CNC systems are of great significance.

Project background and objectives
Founded in 1957, China Aerospace Science and Technology Third Institute is affiliated to the Aerospace Science and Engineering System. It is the development and production base of China's flight power plant. It integrates research, design, trial production, testing and mass production. It is a key scientific research production of the national defense industry. unit.
Other major participating units are Dalian Kede CNC Co., Ltd., Zhuzhou Diamond Cutting Tool Co., Ltd., Dalian Guangyang Technology Group Co., Ltd., Wuhan Huazhong CNC Co., Ltd., Beijing University of Aeronautics and Astronautics, Beijing Electric Processing Research Institute, Beijing Aviation Precision Mechanical Research Institute, Beijing Ande Jianqi Digital Equipment Co., Ltd.
This project will run from January 2015 to December 2017. The main goal and task is to create a comprehensive test and verification platform that includes a total of 26 domestic high-end five-axis CNC machine tools.
This project will use the research and development results of the special project on the high-end manufacturing equipment, and integrate with the manufacturing technology of the complex parts of the flight power plant. The domestic high-end CNC equipment technology will be realized through the domestic high-end numerical control equipment application demonstration that meets the requirements of the missile manufacturing process technology. Pulling, in the domestic missile manufacturing enterprises to establish domestic high-end CNC equipment and its key technology application verification base.
At the same time, research on the NC machining process of missile complex parts, establish a process database based on domestic CNC machine tools and tools, verify the processing adaptability, reliability and precision retention of domestic CNC machine tools and CNC systems; apply multi-axis linkage programming, on-machine measurement , error compensation, fault diagnosis and monitoring technologies to improve the application level and effect of common technology on domestic CNC equipment. While promoting the demonstration and application of these special results, combined with the missile manufacturing process technology, the special product and missile integrated manufacturing technology will be further improved, and the special features of “focus on user application and verification” will be concentrated, and the system of the overall task of CNC machine tools will be highlighted. Sex, integration and continuity.
In addition, through the research of the subject, the basic technological level and manufacturing capacity of the space flight weapon equipment manufacturing enterprises will be improved, the basic data of the reliability of the domestic CNC machine tools will be accumulated, and the core technology of the design and manufacture of the domestic high-end five-axis CNC machine tools will be upgraded to replace the imported ones.

Main technical difficulties
Based on the mature technology of the complex components of the existing flight power plant, the process of CNC equipment and technology suitable for the special results of 04 is explored to form a domestic high-end CNC machine tool, CNC system, CAM software, online measurement and offline measurement system, and workshop informationization. The system's flight power unit complex parts processing technology.
The project will build a demonstration line of flying power equipment including more than 26 domestic high-end CNC machine tools. The machine types include five-axis vertical milling, five-axis vertical milling, five-axis vertical milling, five-axis horizontal milling, Five-axis gantry, five-axis tool grinding, impeller and casing detection device; development of five-axis CAM system, forming a cutting database, a large number of localized tools to replace imports; difficult, research on the flying engine power plant engine manufacturing process and domestic high-end CNC machine tools The mutual adaptation and matching requires a long time and effort. The verification of more than 8 types of missile engine functional components, more than 45 parts and multiple batches will test the stability and adaptability of the basic large components of the domestic five-axis CNC machine tools. And precision retention, and application demonstration for the special results of the CNC machine tool industry.
The main technical innovations are: (1) to build an innovative platform including more than 26 domestic high-end five-axis CNC machine tools and a pilot demonstration base for the manufacturing process test of the flight power plant engine; (2) adopting an integrated innovative technology route, advanced in 31 With the support of mature integrated impeller manufacturing technology, the domestic integrated impeller and turning-milling five-axis CAM software system with independent intellectual property rights are developed; (3) Based on the domestic five-axis CNC tool grinding, the design of the flying power plant complex parts domestic tool (4) Based on the domestic five-axis CNC tool grinding and application of domestically produced tools, the cutting and production test of complex parts of the flying power device is carried out to form a database for the machining of difficult-to-machine materials; (5) The impeller and the casing based on the domestic CNC system are developed. Online detection software and device; (6) Development of MES system based on domestic CNC system flight power plant engine manufacturing workshop.

Promotion significance
The flying power unit is the heart of the flying power unit. It belongs to the missile missile engine and concentrates almost all the high-tech technologies in the machinery manufacturing industry. It is called the “crown pearl in the equipment manufacturing industry”, so the flying power unit is also An important symbol of a country's industrial strength. At present, there are only a few countries in the world that can manufacture flying power plants in the United States, Russia, Britain, France and China. The market prospect is very broad.
This topic is included in the application of the five-axis vertical milling and turning composite machining center, five-axis horizontal turning and milling composite machining center, five-axis gantry, five-axis tool grinding, five-axis EDM, five-axis cutting machine, The main production equipment of the flight power plant enterprises, the current defense military equipment manufacturing enterprises such as 31, 460, 120, 331 and other enterprises rely on such models, the current major suppliers include: Switzerland Mikron, Liji Special, Germany Hamer, Demaggi, Strag, WFL, Lanbaodi and so on.
It can be seen that if the subject is successfully applied in the field of flying engine power plant engine manufacturing and successfully implemented, it will effectively improve the manufacturing level and production capacity of China's flying power plant and realize the Chinese dream of strengthening the country and strengthening the army. Thoroughly get rid of the embargo and risk of foreign key processing equipment to China, it effectively safeguards the country's strategic security, and at the same time drives the large-scale application of the above-mentioned domestic high-end CNC machine tools and numerical control technology in other enterprises.

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