【正文】 t meet highspeed development of modern numerical control technology39。 The lathe pany of Japanese big Wei (Okuma ) exhibits IT plaza (the information technology square , is abbreviated as IT square )。 The ones that simplified programming , simplified operating aspect are intelligent, for instance intelligent automatic programming , intelligent manmachine interface ,etc.。 The speed and acceleration of main shaft of dual main shaft lathes of Germany DMG Company are up to 120200r/mm and 1g. In machining accuracy, the past 10 years, ordinary progression accuse of machining accuracy of lathe bring 5μm up to from 10μm already, accurate grades of machining center from 3～ 5μm, rise to 1～ , and ultraprecision machining accuracy is it enter nanometer grade to begin already (). 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 highspeed, high finish machining, if the part of function related to it is electric main shaft, straight line electrical machinery get fast development, the application is expanded further . Link and process and pound to process the fast development of the lathe in 5 axes Adopt 5 axles to link the processing of the threedimensional 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 nitrogen 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 plicated that 5 axles link the numerical control system , host puter 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 electric appearance of main shaft, is it realize 5 axle plex 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 head of plex main shaft and pound to process the development of the lathe (process the lathe including 5). At EMO2020 exhibition, new Japanese 5 of worker machine process lathe adopt plex main shaft hair, can realize the processing of 4 vertical planes and processing of the wanton angle, make 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 machining center, but put and insert and put processing and 5 axles 5 times to link and process in once, can be controlled by CNC system or CAD/CAM is controlled directly or indirectly. Bee the main trend of systematic development of contemporary numerical control intelligently, openly, workedly. The numerical control equipment in the 21st century will be sure 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 selfadaptation of the processing course, the craft parameter is produced automatically。s livelihood of his plays a more and 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 focus. 5 A highspeed, high finish machining technology and new trend equipped The efficiency, quality are subjavanufacturing technology. Highspeed, high finish machining technology can raise the efficiency greatly , improve the quality and grade of the products, shorten production cycle and improve the market petitive 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 production engineering. In 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。 (5)Technology of the sensor。 (3)Automatic control technology。s own numerical control technology and industry, and implement blockading and restrictive policy to our country in view of highgrade, precision and advanced key technology of numerical control and equipping. In a word, develop the advanced manufacturing technology taking numerical control technology as the core and already bee every world developed country and accelerate economic development in a more costeffective manner, important way to improve the overall national strength and national position. 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 forms to the manufacture industry of the tradition and infiltration of the new developing manufacturing industry, namely the socalled digitization is equipped, its technological range covers a lot of