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[工學(xué)]ca6140車床數(shù)控改造設(shè)計-閱讀頁

2025-02-02 12:39本頁面
  

【正文】 mm轉(zhuǎn)動慣量J千克/米平方車床的切削功率PmkW機(jī)床電機(jī)功率PeKW進(jìn)給方向載荷Fl,FxN拖板上垂直方向載荷Fv,FzN拖板上橫向方向載荷Fc,FyN扭矩M傳動效率變形量mm臨界載荷FkN穩(wěn)定系數(shù)nk最大靜轉(zhuǎn)矩Mjmax名義啟動轉(zhuǎn)矩Mnq空載啟動轉(zhuǎn)矩Mkq最大動負(fù)載CN額定靜載荷CoaN額定動載荷CaN最大工作載荷FmN主軸恒功率調(diào)速范圍Rnp電動機(jī)恒功率調(diào)速范圍RpThe Numerical Control Engine Bed TransformsHarvey ackeyFirst numerical control system development summary brief history and tendency In 1946 the first electronic accounting machine was born in the world, this indicated the humanity created has been possible to strengthen and partially to replace the mental labor the tool. It with the humanity these which in the agriculture, the industry society created only is strengthens the physical labor the tool to pare, got up the quantitive leap, entered the information society for the humanity to lay the foundation. After 6 years, in 1952, puter technology applied to the engine bed , the first numerical control engine bed were born in US. From this time on, the traditional engine bed has had the archery target change. Since nearly half century, the numerical control system has experienced two stages and six generation of development. Numerical control (NC) stage (1952 ~ 1970) The early puter operating speed is low, was not big to then science putation and the data processing influence, but could not adapt the engine bed realtime control request. The people can not but use numeral logic circuit to build to bee an engine bed special purpose puter to take the numerical control system, is called the hardware connection numerical control (HARDWIRED NC), Jian Chengwei numerical control (NC). Along with the primary device development, this stage has had been through repeatedly three generations, namely 1952 first generation of electron tube。 1965 third generation small scale integration electric circuit. Computer numerical control (CNC) stage (in 1970 ~ present) In 1970, the general miniputer already appeared and the mass production. Thereupon transplants it takes the numerical control system the core part, from this time on entered the puter numerical control (CNC) the stage (which should have puter in front of the general two characters to abbreviate). In 1971, American INTEL Corporation in the world first time the puter two most cores part logic units and the controller, used the large scale integrated circuit technology integration on together the chip, called it the microprocessor (MICROPROCESSOR), also might be called the central processing element (to be called CPU). The microprocessor is applied to 1974 in the numerical control system. This is because miniputer function too strong, controlled an engine bed ability to have wealthily (therefore once uses in controlling the multi Taiwan engine bed at that time, called it group control), was inferior to used the microprocessor economy to be reasonable. Moreover then small machine reliability was not ideal. The early microprocessor speed and the function although insufficiently are also high, but may solve through the multiprocessor structure. Because the microprocessor is the generalpurpose calculator core part, therefore still was called the puter numerical control. In 1990, PC machine (personal puter, domestic custom had called microputer) the performance has developed to the very high stage, may satisfiedly take the numerical control system core part the request. The numerical control system henceforth entered based on the PC stage. In brief, the puter numerical control stage has also experienced three generations. Namely 1970 fourth generation of miniputer。s experience, the processing general rule and the special rule store in the system, take the craft parameter database as the strut, the establishment has the artificial intelligence the expert system. (3) introduces the breakdown to diagnose the expert system (4) intellectualized numeral servo drive May through the automatic diagnosis load, but the automatic control parameter, causes the actuation system to obtain the best movement.Second, engine bed numerical control transformation necessity microscopic looks at the transformation the necessity From on microscopic looked below that, the numerical control engine bed has the prominent superiority pared to the traditional engine bed, moreover these superiority e from the puter might which the numerical control system contains. may process the traditional engine bed cannot process the curve, the curved surface and so on the plex ponents. Because the puter has the excellent operation ability, may the instant accurately calculate each coordinate axis instant to be supposed the movement physiological load of exercise, therefore may turn round the synthesis plex curve or the curved surface. may realize the processing automation, moreover is the flexible automation, thus the efficiency may enhance 3 ~ 7 times pared to the traditional engine bed. Because the puter has the memory and the memory property, may the procedure which inputs remember and save, then the order which stipulated according to the procedure automatic carries out, thus realization automation. The numerical control engine bed so long as replaces a procedure, may realize another work piece processing automation, thus causes the single unit and the small batch of production can automate, therefore is called has realized flexible automation. processings ponents precision high, size dispersion degree small, makes the assembly to be easy, no longer needs to make repairs. may realize the multi working procedures centralism, reduces the ponents in engine bed between frequent transporting. has autoalarm, the automatic monitoring, automatic pensation and so on the many kinds of autonomy function, thus may realize long time nobody to safeguard the processing. advantage which derives by above five. For example: Reduced worker39。s, at the beginning of the 8
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