外文翻譯--論數(shù)控技術(shù)的發(fā)展趨勢-文庫吧資料
2024-08-18 22:42本頁面
【正文】 ystems, intelligent content included in the numerical control system in all areas: the pursuit of processing efficiency and processing quality of the intelligence, such as the adaptive control process, process parameters automatically generation。 in aviation and aerospace industry, its processing parts are mostly thinwalled and thin bars, stiffness is poor, aluminum or aluminum alloy material, and only at high cutting speed and cutting force in the case of a small can of these ribs, the wall processing. Recently, large single piece aluminum alloy billets, hollowed out approach to create the wings, fuselage and other large parts to replace multiple ponents through a large number of rivets, screws and other connecting means assembly, so that ponents of the strength, stiffness and reliability. These are made of processing equipment, high speed, high precision and high flexibility requirements. s numerical control system for the traditional closed architecture, CNC machine tool only as a nonintelligent motion controller. Machining process variables based on experience in advance the form of a fixed parameter setting, the actual processing of preprocessing by hand or through a CAD / CAM and automated programming systems to prepare. CAD / CAM and CNC is no feedback between the control link, the entire manufacturing process, CNC is a closeddoor openloop enforcement agency. In a plex environment and the changeable conditions, the bination of processing tool, workpiece material, spindle speed, feed rate, tool path, cutting depth, step length, machining allowance, and other processing parameters can not be in the field environment, under the external disturbances and random factors, realtime dynamic adjustment of feedback control can not be more random links to amend CAD / CAM in the set amount, thus affecting the working efficiency and product CNC machining quality. Thus, the traditional CNC system, such a fixed process control mode and closed architecture, limited to the multivariable intelligent control of CNC development, has not suited to the increasingly plex manufacturing process, therefore, to develop numerical control technology as the core of the advanced manufacturing technology has bee our country to accelerate economic development, enhance overall national strength and an important way to statehood.Third, the development trend of numerical control technology The application of CNC technology to traditional manufacturing industry is not only a revolutionary change in the manufacturing industry to bee a symbol of industrialization, and with the numerical control technology, continuous development and expansion of application fields, his people39。 (6) software technology. Second, the development of numerical control system at home and abroad overviewWith the rapid development of puter technology, the traditional manufacturing industries began a fundamental change, the industrialized countries invested heavily in modern manufacturing technology research and development and put forward a new manufacturing model. In modern manufacturing systems, numerical control technology is the key technology, which bines microelectronics, puter, information processing, automatic detection, automatic control and other hightech in one, with high precision, high efficiency, flexibility and automation features to achieve flexible manufacturing automation, integrated, intelligen
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