【正文】 t of NC, have entered a Computer Numerical Control (CNC) stage (in front of the puter should be universal word omitted). To 1971, the United States INTEL pany in the world will be the first time the two most core puter ponents puting and controller, a largescale integrated circuit technology integration in a chip, called the microprocessor (MICROPROCESSOR) , also known as the central processing unit (CPU). 1974 microprocessor to be used in CNC system. This is because the function of the puter is too small to control a machine tool capacity affluent (the time has been used to control more than one machine, called Group Control), as a reasonable economic use of the microprocessor. Miniputer reliability and then not ideal. 外文資料翻譯 2 Early microprocessor speed and functionality while still not high enough, but can be adopted to solve the multiprocessor architecture. As microprocessor core is a general puter ponents, it is still known as the CNC. By 1990, PC machines (personal puters, domestic habits that puter) performance has been developed to a high stage, as a CNC system to meet the requirements of the core ponents. NC system based on PC has now entered the stage. In short, CNC has also experienced a stage three generations. That is, in 197039。s first electronic puter, which shows that human beings created to enhance and replace some of the mental work tools. It and human agriculture, industrial society in the creation of those who merely increase pared to manual tools, from a qualitative leap for mankind39。s entry into the information society laid the foundation. Six years later, in 1952, puter technology applied to the machine in the United States was born first CNC machine tools. Since then, the traditional machine produced a qualitative change. Nearly half a century since the CNC system has experienced two phases and six generations of development. , Numerical Control (NC) phase (1952 to 1970) Early puter39。s fourth generation small puter。s machine tool easements over age 10 account for more than 60% below the 10 machines, automatic / semiautomatic machine less than 20 per cent, FMC / FMS, such as a handful more automated production line (the United States and Japan automatic and semiautomatic machine, 60 percent above). This shows that we the majority of manufacturing industries and enterprises of the production, processing equipment is the great majority of traditional machine tools, and more than half of military age is over 10 years old machine. Processing equipment used by the prevalence of poor quality products, less variety, lowgrade, high cost, supply a long period, in view of the international and domestic markets, lack of petitiveness, and a direct impact on a pany39。 only pay attention to the introduction of some imported the equipment, apparatus, production lines, ignore software, technology, and management, resulting in items integrity, and potential equipment can not play, but some can not even start running, did not play due role, but some production lines to sell the products very well, but not because of equipment failure production standards。 its Third, renovation, to improve accuracy, efficiency and the degree of automation, mechanical, electrical part of the renovation, reassembly of mechanical parts processing, restore the original accuracy of their production requirements are not satisfied with the latest CNC CNC system update。 big power。 coordinates extension units in the campaign centre of the whole trip。s Siemens 810 M CNC system, 611 A AC servo drive system for the pany39。 manual speed X / Y / Zaxis respectively 3000/1000/500 mm / min。 transformation of the twoaxis machine used in the roller screw and belt drive mechanism. Transformation of the entire work includes mechanical design, electrical design, machine overhaul and the ponents are installed and debug. Lathe After the transformation, processing effective itinerary X / Zaxis respectively 390/1400 mm。 machine smallest mobile units of mm. 3, and GSK980T with AC servo drive system of the C6140 Lathe 2020, NC plant in Guangzhou with production GSK980T NC system, DA98 AC servo unit and 4position automatic tool carrier of a motor factory lathe C6140X, Z twoaxis NC transformation of the original reservation the spindle and cooling systems。 manual speed of 400 mm / min。 . Coordinate machine can be linked to plete all kinds of plex curves and surfaces processing. 2, and Step by GSK980T driven system of the C6140 Lathe 1999, the pany invested 80,000 yuan, a Guangzhou NC plant production 外文資料翻譯 14 GSK980T NC system, DY3 hybrid stepping drive unit for the pany39。 transformation of the threeaxis machine used in the roller screw and gear drive mechanism. Transformation of the entire work includes mechanical design, electrical design, PLC and the establishment of procedures for debugging, machine overhaul and, finally, the ponents are installed and debug. Milling After the transformation, processing effective itinerary X / Y / Zaxis respectively 880/270/280 mm。 can simulate the test, after the first real dynamic simulation。 starting torque and the torque of close 外文資料翻譯 11 campaigns, starting torque motor can be reduced. So to meet high precision machining requirements. , security Efficiency must be security as the prerequisite. Machine transformation in the light of the actual situation, we should take corresponding measures must not be ignored. Ball screw is sophisticated ponents, work to prevent dust particular chip and hard sand into the raceway. Screw in the vertical can also increase overall plate shields. And the extension units at both ends of the sliding contact surface Guide to seal well, absolutely rigid Coarse prevent the entry of foreign matter sliding surface damage Guide. 7, the main steps of CNC ma