1、附录 1 The developmenttrend of the numerical control technology Summary : Have introduced numerical control technology and the development trend of the equipment and the current situations of the technical development of numerical control equipment and industrialization of our country of our times bri
2、efly , have discussed under the new environment further deepened in our countrys accession to the WTO and opening to the outside world on this basis, develop technology of numerical control of our country and the importance of the information-based level of manufacturing industry of our country and
3、international competitiveness equips , improves, and has put forward technology of numerical control of our country and some views equipped of developing from two aspects of strategy and tactics. The engineering level of equipment industry and modernized intensity are determining the level of the wh
4、ole national economy and modernized intensity , numerical control technology and equip , develop new developing new high-tech industry and most advanced industry To can make technology and basic equipment most (national defense industry industries , such as information technology and their industry
5、, biotechnology , industry , aviation , spaceflight ,etc. ). Marx has ever said the differences of different economic times, do not lie in what is produced , lie in how produce , with what means of labor produce . Manufacturing technology and equipping the most basic means of production that are tha
6、t the mankind produced the activity, and numerical control technology to equip most central technology. Nowadays the manufacturing industry all around the world adopts the technology of numerical control extensively, in order to improve manufacturing capacity and level, improve the adaptive capacity
7、 and competitive power to the changeable market of the trends . In addition every industrially developed country in the world also classifies the technology and numerical control equipment of numerical control as the strategic materials of the country, not merely take the great measure to develop on
8、es own numerical control technology and industry, and implement blockading and restrictive policy to our country in high-grade , precision and advanced key technology and equipment of numerical control. In a word, develop taking technology of numerical control as the core advanced manufacturing tech
9、nology become world all developed country , accelerate economic development already in a more cost-effective manner, important route to improve the comprehensive national strength and national position. Numerical control technology to go on technology that control with digital information to mechani
10、cal movement and working course, numerical control equipment whether represented by technology of numerical control new technology make industry and new developing infiltration electromechanics integrated product that form of manufacturing industry to tradition, i.e. what is called digitization equi
11、p, 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 technology； (5)Transducer technology； (6)Software engineering ,etc. 1 Development trend of a nu
12、merical control technology The application of the technology of numerical control has not only brought the revolutionary change to traditional manufacturing industry, make the manufacturing industry become the industrialized symbol , and with the constant development of the technology of numerical c
13、ontrol and enlargement of application, the development of he some important trades (IT , car , light industry , medical treatment ,etc. ) to the national economy and the peoples livelihood plays a more and more important role, because these trade necessary digitization that equipped has already been
14、 the main trend of modern development. According to the technology of numerical control and equipment development trend in the world at present, its main research focus has the following several respect 14. A high-speed , high finish machining technology and new trendequipped Efficiency , quality ar
15、e subjects of the advanced manufacturing technology. At a high speed, high finish machining technology can raise the efficiency greatly, quality and grade to raise product, shorten production cycle and improve the competitive power of market. Japan carry technological research association classify t
16、heir as one of the 5 loud modern manufacturing technologies first for this reason, learn (CIRP ) to confirm it as the centre in the 21st century to study one of the directions in international production engineering. In the field of car industry, produce 40 second when beat such as production of 300
17、,000 / vehicle per year, and many variety process it is car that equip one of the key problems that must be solved； In the fields of aviation and aerospace industry, its processings spare parts are mostly the thin wall and thin muscle, rigidity very bad, material aluminium or aluminium alloy, in hig
18、h to cut pace and cut strength very under the little situation only, could process these muscles , walls . Adopt large-scale whole aluminium alloy blank method of pay empty make the wing recently, large-scale parts such as the fuselage ,etc. come to substitute a lot of parts to assemble through nume
19、rous rivet , screw and other connection ways, make the intensity , rigidity and dependability of the component improved. All these requirement for processing and equipping and proposing high-speed , high and precise and high flexibility. According to EMO2001 exhibition situation, the high-speed mach
20、ining center enters for the pace to can reach 80m/min , even high, air transport competent pace can reach 100m/min about. A lot of car factories in the world at present, including Shanghai General Motors Corporation of our country, adopt , substitute and make the lathe up with high-speed machining c
21、enter production line part that make up already. HyperMach lathe of Company , CINCINNATI of U.S.A. , enter , give pace to be most loud to reach 60m/min, it is 100m/min to be fast, acceleration reach 2g, the rotational speed of the main shaft has already reached 60 000r/min. Processing a thin wall of
22、 plane parts, spend 30min only, and same part general at a high speed milling machine process and take 3h, process and need 8h with ordinary milling machine； The paces and acceleration of main shaft of dual main shaft lathes of Germany DMG Company reach 12* separately! 000r/mm and 1g. In machining a
23、ccuracy, in the past 10 years, ordinary progression has accused of the machining accuracy of the lathe to already improve from 10m to 5m, accurate grades of machining center from 3- 5m, raise to 1- 1.5m, and ultraprecision machining accuracy begin , enter getting nanometer already. In machining accu
24、racy, the past 10 years, ordinary progression accuse of machining accuracy of lathe raise to 5m , from 3- 5m accurate grades of machining center from 10m already, improve to 1- 1.5m, and the ultraprecision machining accuracy has already begun to enter nanometer (0.01m )ly. 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 . For realize at a high speed , high finish machining, related
