數(shù)控加工外文翻譯

1、內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì)外文文獻(xiàn)翻譯Numerical control technology and equipping development trend and countermeasureZhao Chang-ming Liu Wang-ju (CNC Machining Process and equipment, 2002,China)Abstract:Equip the engineering level, level of determining the whole national economy of the modernized degree and modernized

2、 degree of industry, numerical control technology is it develop new developing new high-tech industry and most advanced industry to equip (such as information technology and his industry, biotechnology and his industry, aviation, spaceflight, etc. national defense industry) last technology and getti

3、ng more basic most equipment. Numerical control technology is the technology controlled to mechanical movement and working course with digital information, integrated products of electromechanics that the numerical control equipment is the new technology represented by numerical control technology f

4、orms to the manufacture industry of the tradition and infiltration of the new developing manufacturing industry,Keywords: Numerical ControlTechnology, Equipment, industryEquip the engineering level, level of determining the whole national economy of the modernized degree and modernized degree of ind

5、ustry, numerical control technology is it develop new developing new high-tech industry and most advanced industry to equip (such as information technology and his industry, biotechnology and his industry, aviation, spaceflight, etc. national defense industry) last technology and getting more basic

6、most equipment. Marx has ever said "the differences of different economic times, do not lie in what is produced, and lie in how to produce, produce with some means of labor ". Manufacturing technology and equipping the most basic means of production that are that the mankind produced the a

7、ctivity, and numerical control technology is nowadays advanced manufacturing technology and equips the most central technology. Nowadays the manufacturing industry all around the world adopts numerical control technology extensively, in order to improve manufacturing capacity and level, improve the

8、adaptive capacity and competitive power to the changeable market of the trends. In addition every industrially developed country in the world also classifies the technology and內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì)外文文獻(xiàn)翻譯numerical control equipment of numerical control as the strategic materials of the country, not merely ta

9、ke the great measure to develop one's own numerical control technology and industry, and implement blockading and restrictive policy to our country in view of " high-grade, precision and advanced key technology of numerical control " and equipping. In a word, develop the advanced manuf

10、acturing technology taking numerical control technology as the core and already become every world developed country and accelerate economic development in a more cost-effective manner, important way to improve the overall national strength and national position. Numerical control technology is the

11、technology controlled to mechanical movement and working course with digital information, integrated products of electromechanics that the numerical control equipment is the new technology represented by numerical control technology forms to the manufacture industry of the tradition and infiltration

12、 of the new developing manufacturing industry, namely the so-called digitization is equipped, its technological range covers a lot of fields:(1)Mechanical manufacturing technology; (2)Information processing, processing, transmission technology; (3)Automatic control technology; (4)Servo drive technol

13、ogy;(5)Technology of the sensor; (6)Software engineering ,etc.Development trend of a numerical control technologyThe application of numerical control technology has not only brought the revolutionary change to manufacturing industry of the tradition, make the manufacturing industry become the indust

14、rialized symbol , and with the constant development of numerical control technology and enlargement of the application, the development of some important trades (IT , automobile , light industry , medical treatment ,etc. ) to the national economy and the people's livelihood of his plays a more a

15、nd more important role, because the digitization that these trades needed to equip has already been the main trend of modern development.Numerical control technology in the world at present and equipping the development trend to see, there is the following several respect 1- in its main research foc

16、us. 1 A high-speed, high finish machining technology and new trend equippedThe efficiency, quality are subjavanufacturing technology. High-speed, high內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì)外文文獻(xiàn)翻譯finish machining technology can raise the efficiency greatly , improve the quality and grade of the products, shorten production cy

17、cle and improve the market competitive power. Japan carries the technological research association first to classify it as one of the 5 great modern manufacturing technologies for this, learn (CIRP) to confirm it as the centre in the 21st century and study one of the directions in international prod

18、uction engineering.I n the field of car industry, produce one second when beat such as production of 300,000 / vehicle per year, and many variety process it is car that equip key problem that must be solved one of; In the fields of aviation and aerospace industry, spare parts of its processing are m

19、ostly the thin wall and thin muscle, rigidity is very bad, the material is aluminium or aluminium alloy, only in a situation that cut the speed and cut strength very small high, could process these muscles, walls. Adopt large-scale whole aluminium alloy method that blank " pay empty " make

20、 the wing recently, such large-scale parts as the fuselage ,etc. come to substitute a lot of parts to assemble through numerous rivet , screw and other connection way, make the intensity , rigidity and dependability of the component improved. All these, to processing and equipping the demand which h

21、as proposed high-speed, high precise and high flexibility.In machining accuracy, the past 10 years, ordinary progression accuse of machining accuracy of lathe bring 5m up to from 10m already, accurate grades of內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì)外文文獻(xiàn)翻譯machining center from 35m, rise to 11.5m, and ultraprecision machining

22、accuracy is it enter nanometer grade to begin already (0.01m).In dependability, MTBF value of the foreign numerical control device has already reached above 6 000h, MTBF value of the servo system reaches above 30000h, demonstrate very high dependability .In order to realize high-speed, high finish m

23、achining, if the part of function related to it is electric main shaft, straight line electrical machinery get fast development, the application is expanded further . 1.2 Link and process and compound to process the fast development of the lathe in 5 axesAdopt 5 axles to link the processing of the t

24、hree-dimensional curved surface part, can cut with the best geometry form of the cutter , not only highly polished, but also efficiency improves by a large margin . It is generally acknowledged, the efficiency of an 5 axle gear beds can equal 2 3 axle gear beds, is it wait for to use the cubic nitro

25、gen boron the milling cutter of ultra hard material is milled and pared at a high speed while quenching the hard steel part, 5 axles link and process 3 constant axles to link and process and give play to higher benefit. Because such reasons as complicated that 5 axles link the numerical control syst

26、em , host computer structure that but go over, it is several times higher that its price links the numerical control lathe than 3 axles , in addition the technological degree of difficulty of programming is relatively great, have restricted the development of 5 axle gear beds.At present because of e

27、lectric appearance of main shaft, is it realize 5 axle complex main shaft hair structure processed to link greatly simplify to make, it makes degree of difficulty and reducing by a large margin of the cost, the price disparity of the numerical control system shrinks. So promoted 5 axle gear beds of

28、head of complex main shaft and compound to process the development of the lathe (process the lathe including 5).At EMO2001 exhibition, new Japanese 5 of worker machine process lathe adopt complex main shaft hair, can realize the processing of 4 vertical planes and processing of the wanton angle, mak

29、e 5 times process and 5 axles are processed and can be realized on the same lathe, can also realize the inclined plane and pour the processing of the hole of awls. Germany DMG Company exhibits the DMUVoution series內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì)外文文獻(xiàn)翻譯machining center, but put and insert and put processing and 5 axles

30、 5 times to link and process in once, can be controlled by CNC system or CAD/CAM is controlled directly or indirectly.1.3 Become the main trend of systematic development of contemporary numerical control intelligently, openly, networkedly.The numerical control equipment in the 21st century will be s

31、ure the intelligent system, the intelligent content includes all respects in the numerical control system: It is intelligent in order to pursue the efficiency of processing and process quality, control such as the self-adaptation of the processing course, the craft parameter is produced automaticall

32、y; Join the convenient one in order to improve the performance of urging and use intelligently, if feedforward control , adaptive operation , electrical machinery of parameter , discern load select models , since exactly makes etc. automatically; The ones that simplified programming , simplified ope

33、rating aspect are intelligent, for instance intelligent automatic programming , intelligent man-machine interface ,etc.; There are content of intelligence diagnose , intelligent monitoring , diagnosis convenient to be systematic and maintaining ,etc.內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì)外文文獻(xiàn)翻譯communication norm , disposing

34、norm , operation platform , numerical control systematic function storehouse and numerical control systematic function software development ,etc. are the core of present research.The networked numerical control equipment is a new light spot of the fair of the internationally famous lathe in the past

35、 two years. Meeting production line , manufacture system , demand for the information integration of manufacturing company networkedly greatly of numerical control equipment, realize new manufacture mode such as quick make , fictitious enterprise , basic Entrance that the whole world make too. Some

36、domestic and international famous numerical control lathes and systematic manufacturing companies of numerical control have all introduced relevant new concepts and protons of a machine in the past two years, if in EMO2001 exhibition, " Cyber Production Center " that the company exhibits o

37、f mountain rugged campstool gram in Japan (Mazak) (intellectual central production control unit, abbreviated as CPC); The lathe company of Japanese big Wei (Okuma ) exhibits " IT plaza " (the information technology square , is abbreviated as IT square ); Open Manufacturing Environment that

38、 the company exhibits of German Siemens (Siemens ) (open the manufacturing environment, abbreviated as OME),etc., have reflected numerical control machine tooling to the development trend of networked direction.1.4 Pay attention to the new technical standard, normal setting-up內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì)外文文獻(xiàn)翻譯The

39、numerical control standard is a kind of trend of information-based development of manufacturing industry. Information exchange among 50 years after numerical control technology was born was all because of ISO6983 standard, namely adopt G, M code describes how processes, its essential characteristic

40、faces the processing course, obviously, he can't meet high-speed development of modern numerical control technology's needs more and more already. For this reason, studying and making a kind of new CNC system standard ISO14649 (STEP-NC) in the world, its purpose is to offer a kind of neutral

41、 mechanism not depending on the concrete system, can describe the unified data model in cycle of whole life of the products, thus realize the whole manufacture process, standardization of and even each industrial field product information.The appearance of STEP-NC may be a revolution of the technolo

42、gical field of the numerical control, on the development and even the whole manufacturing industry of numerical control technology, will exert a far-reaching influence. First of all, STEP-NC puts forward a kind of brand-new manufacture idea, in the traditional manufacture idea, NC processes the proc

43、edures to all concentrate on individual computer. Under the new standard, NC procedure can be dispersed on Internet, this is exactly a direction of open , networked development of numerical control technology. Secondly, STEP-NC numerical control system can also reduce and process the drawing (about

44、75%), process the procedure to work out the time (about 35%) and process the time (about 50%) greatly.內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì)外文文獻(xiàn)翻譯numerical control at present.2 pairs of basic estimations of technology and industry development of numerical control of our countryThe technology of numerical control of our coun

45、try started in 1958, the development course in the past 50 years can roughly be divided into 3 stages: The first stage is from 1958 to 1979, namely closed developing stage. In this stages, because technology of foreign countries blockade and basic restriction of terms of our country, the development

46、 of numerical control technology is comparatively slow. During "Sixth Five-Year Plan Period" , " the Seventh Five-Year Plan Period " of the country in second stage and earlier stage in " the Eighth Five-Year Plan Period ", namely introduce technology, digest and assimil

47、ate, the stage of establishing the system of production domesticization arisesing tentatively. At this stage , because of reform and opening-up and national attention , and study the improvement of the development environment and international environment, research , development and all making consi

48、derable progress in production domesticization of the products of the technology of numerical control of our country. The third stage is and during the "Ninth Five-Year Plan Period" on the later stage in "the Eighth Five-Year Plan Period" of the country, namely implement the rese

49、arch of industrialization, enter market competition stage. At this stage, made substantive progress in industrialization of the domestic numerical control equipment of our country. In latter stage for "the Ninth Five-Year Plan ", the domestic occupation rate of market of the domestic numer

50、ical control lathe is up to 50%, it is up to 10% too to mix the domestic numerical control system (popular).Make a general survey of the development course in the past 50 years of technology of numerical control of our country, especially through tackling key problems of 4 Five-Year Plans, all in al

51、l has made following achievements.（1） Have established the foundation of the technical development of numerical control, has mastered modern numerical control technology basically. Our country has already, the numerical control host computer, basic technology of special plane and fittings grasped an

52、d driven from the numerical control system and survey basically now, among them most technology have already possessed and commercialized the內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì)外文文獻(xiàn)翻譯foundation developed, some technology has already, industrialization commercialized.（2） Have formed the industrial base of numerical control

53、 tentatively. In tackling key problems the foundation that the achievement and some technology commercialize, set up the systematic factories of numerical control with production capacity in batches such as numerical control in Central China, numerical control of the spaceflight etc. Electrical mach

54、inery plant of Lanzhou, such factory and the first machine tool plant of Beijing , the first machine tool plant of Jinan ,etc. several numerical control host computer factories of a batch of servo systems and servo electrical machineries as the numerical control in Central China, etc. These factorie

55、s have formed the numerical control industrial base of our country basically.（3） Have set up a numerical control research, development, managerial talent's basic team.Though has made considerable progress in research and development and industrialization of numerical control technology, but we w

56、ill realize soberly, the research and development of the technology of advanced numerical control of our country, especially there is greater disparity in current situation and current demand of our country of engineering level in industrialization. Though very fast from watching the development of

57、our country vertically, have disparity horizontally more than (compare foreign countries with) not merely engineering level, there is disparity too in development speed in some aspects, namely the engineering level disparity between some high-grade , precision and advanced numerical control equipmen

58、t has the tendency to expand . Watch from world, estimate roughly as follows about the engineering level of numerical control of our country and industrialization level.（1） On the engineering level, in probably backward 10-1 years with the advanced level in foreign countries, it is bigger in high-qu

59、ality precision and sophisticated technology.（2） On the industrialization level, the occupation rate of market is low, the variety coverage rate is little, have not formed the large-scale production yet; The specialized level of production of function part and ability of forming a complete set are r

60、elatively low; Appearance quality is relatively poor; Dependability is not high, the commercialized degree is insufficient; One's own brand effect that the domestic內(nèi)蒙古工業(yè)大學(xué)本科畢業(yè)設(shè)計(jì)外文文獻(xiàn)翻譯numerical control system has not been set up yet, users have insufficient confidence.（3） On the ability of sustai