数控技术和装备外文翻译.doc

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1、Numerical control technology and equipment trend of developmentThe 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 a

2、nd 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 tim

3、e 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 manufact

4、ure 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 vario

5、us 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 pol

6、icy 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 manufacture

7、, 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 contro

8、l 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 technolo

9、gy; (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 applicatio

10、n 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 peo

11、ples 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 dev

12、elopment tendency looked from the present world that, its main research hotspot 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 precision

13、 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 internationa

14、l 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 m

15、ust 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 mu

16、scles, 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 jo

17、int 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 rate

18、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 su

19、bstitution 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 co

20、mponents 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 y

21、ears, 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 nume

22、rical 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 machinery

23、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 the

24、cutting, not only the smooth finish is high, moreover the efficiency also large scale enhances. Believed generally that, 1 5 axislinkage 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 car

25、ries 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 com

26、pared 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 is

27、 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) devel

28、opment. 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, bu

29、t 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. 1.

30、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: I

31、n 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 co

32、ntrol, 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 contac

33、t 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

34、 production existence question. At present many countries conduct the research to the open style numerical control system, like US NGC(The Next Generation Work-Station/Machine Control)、European Economic Community OSACA(Open System Architecture for Control within Automation Systems) 、 Japanese OSEC(O

35、pen System Environment for Controller)，Chinese ONC(Open Numerical Control System) and so on。The numerical control system will open already becomes the numerical control system road of the future. The so-called open style numerical control system is the numerical control system development may in the

36、 unified movement platform, face the engine bed factory and the end-user, through the change, the increase or the tailor structure object (numerical control function), forms the seriation, and may conveniently integrates users special application and the technical knack in the control system, the fa

37、st realization different variety,the different scale open style numerical control system, forms has the bright individuality famous brand goods. At present the open style numerical control system architecture standard, the correspondence standard, the disposition standard, the movement platform, the

38、 numerical control system function storehouse as well as the numerical control system function software development kit and so on is the current research core. The network numerical control equipment is a near two year international famous engine bed exposition new luminescent spot. The numerical co

39、ntrol equipment network enormously will satisfy the production line, the manufacture system, the manufacture enterprise to the information integration demand, also will be realizes new manufacture pattern like agile manufacture, hypothesized enterprise, the global manufacture foundation unit. The do

40、mestic and foreign some famous numerical control engine bed and the numerical control system manufacture company all has promoted the related new concept and the prototype in the nearly two years. 1.4 takes the new technical standard, the standard establishment 1.4.1 about numerical control system d

41、esign development standard As mentioned above, the open style numerical control system has a better versatility, the flexibility, the compatibility, the extension, countries and so on US, European Economic Community and Japan implements the strategy development plan in abundance, and carries on the

42、open style architecture numerical control system specification (OMAC, OSACA, OSEC) the research and the formulation, the world 3 biggest economies have carried on the nearly same science plan and the standard formulation in the short-term, has indicated a numerical control technology new transformat

43、ion time oncoming. Our country also started in 2000 to conduct Chinas ONC numerical control system standard frame research and the formulation. 1.4.2 about numerical control standard The numerical control standard is the manufacturing industry informationization development one tendency. The numeric

44、al control technology is born after 50 year exchanges of information all is based on the ISO6983 standard, how namely uses the G, M code to describe the (how) processing, its substantive characteristics faces the processing process, obviously, he has more and more not been able to satisfy modern num

45、erical control technology high speed the need to develop. Therefore, on international is studying and formulates one kind of new CNC system standard ISO14649(STEP-NC), its goal is provides one kind not to rely on the concrete system neutral mechanism, can describe in the product entire life cycle un

46、ified data model, thus realizes the entire manufacture process, and even each industry domain product information standardization. The STEP-NC appearance is possibly a numerical control area of technology revolution, regarding the numerical control technology development and even the entire manufact

47、uring industry, will have the profound influence. First, STEP-NC proposed one kind of brand-new manufacture idea, in the traditional manufacture idea, the NC processing procedure all concentrates on the single computer. But under the new standard, the NC procedure may disperse on the Internet, this

48、is precisely the numerical control technology open style, the network development direction. Next, the STEP-NC numerical control system also may reduce the processing blueprint greatly (approximately 75%), the processing programming time (approximately 35%) and the process period (approximately 50%)

49、. At present, the European and American countries extremely took STEP-NC the research, Europe initiate STEP-NC IMS to plan (1999.1.12001.12.31). Participates in this plan to havecomes from European and Japans 20 CAD/CAM/CAPP/CNC user, manufacturer and academic organization. USs STEP Tools Corporation is in the global scope the manufacturing industry data exchange software exploiter, he already developed has served as the numerical control engine bed processing exchange of information the super model (Super Model), its goal was with the unification standard description