机械工程及自动化外文翻译---数控技术和装备发展趋势

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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 ti

3、me 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 manufac

4、ture 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 vari

5、ous 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 po

6、licy 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 manufactur

7、e, 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 contr

8、ol 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 technol

9、ogy； (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 applicati

10、on 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 pe

11、oples 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 de

12、velopment 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 precisi

13、on 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 internatio

14、nal 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 equipment

15、 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 rat

18、e 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 10

21、 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 nu

22、merical 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 machiner

23、y 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 th

24、e 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

25、carries on the high speed milling hardened steel components, 5 axis linkage processing may compared to 3 axis linkage processing display a higher benefit. Because but past 5 axis linkage numerical control system, main engine structure complex and so on reasons, its price must outdo the several fold

26、compared to 3 axis linkage numerical control engine bed, added the programming technology difficulty to be big, has restricted 5 axis linkage engine bed development. Current as a result of electricity main axle appearance, causes to realize 5 axis linkage processing compound host axle neck structure

27、 is greatly the simplification, its manufacture difficulty and the cost reduce large scale, numerical control system price disparity reduction. Therefore promoted the compound host axle neck type 5 axis linkage engine bed and the compound processing engine bed (including 5 processing engine beds) de

28、velopment. Unfolds at the meeting in EMO2001, the new Japanese labor machine 5 processing engine beds use the compound host axle neck, may realize 4 vertical plane processings and the random angle processing, causes 5 processings and 5 axis processings may realize on the identical Taiwan engine bed,

29、 but also may realize the inclined plane and the back taper hole processing. German DMG Corporation displays the DMUVoution series processing center, may clamp the next 5 processings and 5 axis linkage processing in an attire, may by the CNC systems or CAD/CAM which are controled deract or inderact.

30、 1.3 intellectualizations, open style, the network becomes the contemporary numerical control system development the main tendency The 21st century numerical control equipments will be has certain intellectualized system, the intellectualized content including in numerical control system each aspect

31、: In order to pursue the processing efficiency and the processing quality aspect intellectualization, like processing process adaptive control, craft parameter automatic production； In order to enhance the actuation performance and the use connection convenient intellectualization, like feed-forward

32、 control, electrical machinery parameter auto-adapted operation, automatic diagnosis load automatic designation model, self regulating grade； Simplification programming, simplification operation aspect intellectualization, like intellectualized automatic programming, intellectualized man-machine con

33、tact surface and so on； Also has the intelligence to diagnose, the intelligent monitoring aspect content, the convenience system diagnosis and the service and so on. In order to solve the traditional numerical control system closeness and the numerical control application software industrial production production existence