1、 Numerical control technology and equipment trend of development The equipment industry technical level and the modernized degree were deciding the entire national economy level and the modernized degree, the numerical control technology and the equipment are the development emerging high technology
2、 and new technology industry and the state-of-art industry (for example defense industry industries and so on information technology and industry, biological technology and industry, aviation, astronautics) enables the technology and the most basic equipment. Marx had said “each kind of economical t
3、ime difference, does not lie in produces any, but how lies in produces, with any means of labor production”. The technique of manufacture and the equipment is the humanity produces active the most basic producer goods, but the numerical control technology also is advanced now the technique of manufa
4、cture and the equipment most core technology. Now the various countries manufacturing industry widely uses the numerical control technology, sharpens the manufacturing capacity and the level, enhances to the dynamic changeable market adaptiveness and competitive ability. In addition in the world var
5、ious industries developed country also lists as the national strategic resources the numerical control technology and the numerical control equipment, not only takes the significant measure to develop own numerical control technology and the industry, moreover implements the blockade and the limit p
6、olicy in “precise and advanced” the numerical control key technologies and the equipment aspect to our country. In brief, develops vigorously take the numerical control technology has become the world each developed country acceleration economy development as the core advanced technique of manufactu
7、re, enhances the comprehensive national strength and the national status important way. The numerical control technology is carries on the control with the numerical information to the mechanical movement and the work process the technology, the numerical control equipment is take the numerical cont
8、rol technology as representatives new technology the integration of machinery product which forms to the traditional manufacture industry and the emerging manufacturing industry seepage, namely so-called digitized equipment, its technical scope cover very many domains: (1) machine manufacture techno
9、logy； (2) information processing, processing, transmission technology； (3) automatic control technology； (4) servo actuates the technology； (5) sensor technology； (6) software technology and so on. 1 numerical control technology trend of development Not only the numerical control technology applicat
10、ion has brought the revolutionary change for the traditional manufacturing industry, causes the manufacturing industry to become the industrialization the symbol, moreover along with numerical control technology unceasing development and application domain expansion, he to national economy and the p
11、eoples livelihood some important professions (IT, automobile, light industry, medical service and so on) development more and more vital role, because these professions must equip the digitization already was the modern development major tendency. The numerical control technology and the equipment d
12、evelopment tendency looked from the present world that, its main research hot spot has following several aspect 14. 1.1 high speed, high precision work technology and equipment new tendency The efficiency, the quality are the advanced technique of manufacture main bodies. High speed, the high precis
13、ion work technology may enhance the efficiency enormously, enhances the product the quality and the scale, reduces the production cycle and sharpens the market competition ability. Lists as one of 5 great modern techniques of manufacture for this Japan Tip Technology Research board it, the internati
14、onal production project learns (CIRP) its determination is one of 21st century central research directions. In the passenger vehicle industry domain, yearly produces 300,000 production metres was 40/s， moreover the multi-variety processing is one of key questions which the passenger vehicle equipmen
15、t must solve； In the aviation and the astronavigation industry domain, its processing spare part many for the thin wall and the thin muscle, the rigidity is very bad, material for aluminum or aluminum alloy, only then in the high cutting speed and the cutting force very small situation, can to these
16、 muscles, the wall carry on the processing. Recently uses the large-scale overall aluminum alloy semifinished materials “pull out spatially” the method to make the wing, the fuselage and so on the large-scale components substitutes many components through the multitudinous rivets, the bolt and other
17、 joint way assembling, causes the component the intensity, the rigidity and the reliability obtains the enhancement. These all to processed the equipment to propose high speed, Gao Jing and the high flexible request. Unfolds from EMO2001 meets the situation to look that, processes the center feed ra
18、te to be possible high speed to reach 80m/min, even higher, the aerial transport stroke speed may reach 100m/About min. At present in the world many automotive factories, including our countrys Shanghai General Motors, already used by the high speed processing center composition production line part
19、 substitution aggregate machine-tool. American CINCINNATI Corporations HyperMach engine bed feed rate reaches 60m/most greatlymin, fast is 100m/min, the acceleration reaches 2g, the main axle rotational speed has reached 60 000r/min. Processes a thin wall airplane part, only uses 30min, but the same
20、 components need 3h in the common high speed milling machine processing, needs 8h in the plain milling machine processing； The German DMG Corporations double main axle lathe main axle speed and the acceleration respectively reach 12*! 000r/mm 和 1g。 In the processing precision aspect, in the recent 1
21、0 years, the ordinary level numerical control engine bed processing precision from 10m enhanced 5m, the fine level of secrecy processing center from 35 m, enhances to 11.5 m, and the ultra precise processing precision started to enter a nanometer level (0.01m). In the reliable aspect, the overseas n
22、umerical control installment value has reached above 6 000h, the servosystem value achieved above 30000h, displays the extremely high reliability. In order to realize, the high precision work high speed, with it necessary function part like electricity main axle, the straight line electrical machine
23、ry obtained the fast development, the application domain further expanded. 1.2 5 axis linkage processing and compound processing engine bed fast development Uses 5 axis linkages to the three dimensional curved surface components processing, the available cutting tool best geometry shape carries on t
24、he cutting, not only the smooth finish is high, moreover the efficiency also large scale enhances. Believed generally that, 1 5 axis linkage engine bed efficiency may be equal to 2 3 axis linkage engine bed, specially uses when the cubic boron nitride and so on the ultra hard material milling cutter carries on the high speed mill
