【正文】 he necessity must manufacture the transformation connection voluntarily. veral examples 1st, transforms the X53 milling machine with SIEMENS 810M In 1998, the pany invested 200,000 Yuan, with German Simens the 810M numerical control system, the 611A exchange servo drive system sds was the X53 milling machine carries on X, Y, the Z three axle numerical control transformation to a pany39。 Retained the original main axle system and the cooling system。 The transformation three axle has used the roller lead screw and the gear drive organization on the machinery. The entire transformation work including the machine design, the electrical design, the engine bed overhaul, finally is the entire machine installment and the debugging. After the milling machine transforms, processing effective stroke X/Y/The Z axis respectively is 。 數(shù)控（ NC）階段（ 1952～ 1970 年） 早期計算機的運算速度低，對當時的科 學計算和數(shù)據(jù)處理影響還不大，但不能適應機床實時控制的要求。而且當時的小型機可靠性也不理想。至少采用 PC 機作為它的前端機，來處理人機界面、編程、聯(lián)網(wǎng)通信等問題，由原有的系統(tǒng)承擔數(shù)控的任務。數(shù)控系統(tǒng)從此進入了基于 PC 的階段。于是將它移植過來作為數(shù)控系統(tǒng)的核心部件，從此進入了計算機數(shù)控（ CNC）階段（把計算機前面應有的 通用 兩個字省略了）。它與人類在農(nóng)業(yè)、工業(yè)社會中創(chuàng)造的那些只是增強體力勞動的工具相比，起了質(zhì)的飛躍，為人類進入信息社會奠定了基礎。 Manual is fast is X/The Z axis respectively is 。 Maximum speed X/Y/The Z axis respectively is 5000/1500/800 mm/Min。 Precision high, the life is long。 Does not satisfy the production request to it the CNC system to carry on the renewal by newest CNC。 1974 five dynasties microprocessor and 1990 sixth generation (overseas was called PCBASED) based on PC. Also must point out, although overseas already renamed as the puter numerical control (namely CNC). Also must point out, although overseas already renamed as the puter numerical control (namely CNC), but our country still the custom called the numerical control (NC). Therefore we daily say numerical control, the materially already was refers to puter numerical control. the numerical control future will develop tendency open style continues to, to develop based on the PC sixth generation of direction The software and hardware resources has which based on PC are rich and so on the characteristic, the more numerical controls serial production factory can step onto this path. Uses PC machine to take at least its front end machine, processes the manmachine contact surface, the programming, the association Question and so on correspondence, undertakes the numerical control duty by the original system. PC machine has the friendly manmachine contact surface, will popularize to all numerical controls system. The longdistance munication, the longdistance diagnosis and the service will be more mon. approaches and the high accuracy development This is adapts the engine bed to be high speed and the high accuracy direction need to develop. develops to the intellectualized direction Along with the artificial intelligence in the puter domain unceasing seepage and the development, the numerical control system intellectualized degree unceasingly will enhance. (1) applies the adaptive control technology The numerical control system can examine in the process some important information, and the automatic control system related parameter, achieves the improvement system running status the goal. (2) introduces the expert system instruction processing The skilled worker and expert39。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。 Fourth is the technology renews or the technical innovation, for enhances the performance or the scale, or in order to use the new craft, the new technology, carries on the big scale in the original foundation the