數(shù)控凸輪軸磨床旋轉(zhuǎn)轉(zhuǎn)臺設(shè)計(jì)【說明書+CAD】

購買設(shè)計(jì)請充值后下載，資源目錄下的文件所見即所得，都可以點(diǎn)開預(yù)覽，資料完整，充值下載可得到資源目錄里的所有文件。【注】：dwg后綴為CAD圖紙，doc,docx為WORD文檔，原稿無水印，可編輯。具體請見文件預(yù)覽，有不明白之處，可咨詢QQ:12401814 數(shù)控機(jī)床改造The Numerical Control Engine Bed TransformsFirst numerical control system development summary brief history and tendencyIn 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 compare, got up the quantitive leap, entered the information society for the humanity to lay the foundation.After 6 years, in 1952, computer 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.1.1 Numerical control (NC) stage (1952 1970)The early computer operating speed is low, was not big to then science computation and the data processing influence, but could not adapt the engine bed real-time control request. The people can not but use numeral logic circuit to build to become an engine bed special purpose computer to take the numerical control system, is called the hardware connection numerical control (HARD-WIRED 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; 1959 second generation of - transistor; 1965 third generation - small scale integration electric circuit.1.2 Computer numerical control (CNC) stage (in 1970 present)In 1970, the general minicomputer already appeared and the mass production. Thereupon transplants it takes the numerical control system the core part, from this time on entered the computer numerical control (CNC) the stage (which should have computer in front of the general two characters to abbreviate). In 1971, American INTEL Corporation in the world first time the computer 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 minicomputer 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 multi-processor structure. Because the microprocessor is the general-purpose calculator core part, therefore still was called the computer numerical control.In 1990, PC machine (personal computer, domestic custom had called microcomputer) 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 computer numerical control stage has also experienced three generations. Namely 1970 fourth generation of - minicomputer; 1974 five dynasties - microprocessor and 1990 sixth generation - (overseas was called PC-BASED) based on PC.Also must point out, although overseas already renamed as the computer numerical control (namely CNC).Also must point out, although overseas already renamed as the computer 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 computer numerical control.1.3 the numerical control future will develop tendency1.3.1 open style continues to, to develop based on the PC sixth generation of directionThe 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 man-machine contact surface, the programming, the associationQuestion and so on net correspondence, undertakes the numerical control duty by the original system. PC machine has the friendly man-machine contact surface, will popularize to all numerical controls system. The long-distance communication, the long-distance diagnosis and the service will be more common.1.3.2 approaches and the high accuracy developmentThis is adapts the engine bed to be high speed and the high accuracy direction need to develop.1.3.3 develops to the intellectualized directionAlong with the artificial intelligence in the computer domain unceasing seepage and the development, the numerical control systemintellectualized degree unceasingly will enhance.(1) applies the adaptive control technologyThe 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 processingThe skilled worker and experts 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 driveMay 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 necessity2.1 microscopic looks at the transformation the necessityFrom on microscopic looked below that, the numerical control engine bed has the prominent superiority compared to the traditional engine bed, moreover these superiority come from the computer might which the numerical control system contains.2.1.1 may process the traditional engine bed cannot process the curve, the curved surface and so on the complex components.Because the computer 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 complex curve or the curved surface.2.1.2 may realize the processing automation, moreover is the flexible automation, thus the efficiency may enhance 3 7 times compared to the traditional engine bed.Because the computer 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.2.1.3 processings components precision high, size dispersion degree small, makes the assembly to be easy, no longer needs to make repairs.2.1.4 may realize the multi- working procedures centralism, reduces the components in engine bed between frequent transporting.2.1.5 has auto-alarm, the automatic monitoring, automatic compensation and so on the many kinds of autonomy function, thus may realize long time nobody to safeguard the processing.2.1.6 advantage which derives by above five.For example: Reduced workers labor intensity, saved the labor force (a person to be possible to safeguard the multi- Taiwan engine bed), reduced the work clothes, reduced the new product trial manufacturing cycle and the production cycle, might to the market demand make rapid reaction and so on.Above these superiority are the predecessor cannot imagine, is an extremely significant breakthrough. In addition, the engine bed numerical control carries out FMC (flexible manufacture unit), FMS (flexible manufacture system) as well as CIMS (computer integration manufacture system) and so on the enterprise becoming an information based society transformation foundation. The numerical control technology alreadybecame the manufacturing industry automation the core technology and the foundation technology.2.2 great watches the transformation the necessityFrom on macroscopic looked that, the industry developed country armed forces, the airplane weapon industry, in the end of the 70s, at the beginning of the 80s started the large-scale application numerical control engine bed. Its essence is, uses the information technology to the traditional industry (including the armed forces, airplane weapon industry) carries on the technological transformations. Except that uses outside the numerical control engine bed, FMC, FMS in the manufacture process, but also includes in the product development carries out CAD, CAE, CAM, the hypothesized manufacture as well as carries out MIS in the production management (management information system), CIMS and so on. As well as increases the information technology in its production product, including artificial intelligence and so on content. Because uses the information technology to the country foreign troops, the airplane weapon industry carries on the thorough transformation (to call it becoming an information based society), finally causes them the product in the international military goods and in the goods for civilian use market the competitive power greatly is the enhancement. But we in the information technology transformation tradition industry aspect compared to the developed country to fall behind approximately for 20 years. Like in our country engine bed capacity, numerical control engine bed proportion (numerical control rate) to 1995 only then 1.9%, but Japan has reached 20.8% in 1994, therefore every year has the massive mechanical and electrical products import. This also on from on macroscopic explained the engine bed numerical control transformation necessity.Thord, the numerical control transformation content andsuperiorly lacks3.1 Transformation industry startingIn US, Japan and Germany and so on the developed country, their engine bed transforms took the new economical growth profession, thrives abundantly, is occupying the golden age. As a result of the engine bed as well as the technical unceasing progress, the engine bed transformation is the eternal topic. Our countrys engine bed transformation industry, also enters from the old profession to by the numerical control technology primarily new profession. In US, Japan, Germany, have the broad market with the numerical control technological transformations engine bed and the production line, has formed the engine bed and the production line numerical control transformation new profession. In US, the engine bed transformation industry is called the engine bed regeneration (Remanufacturing) industry. Is engaged in the regeneration industry famous company to include: The Bertsche engineering firm, the ayton engine bed company, Devlieg-Bullavd (are valuable) serves the group, the US equipment company and so on. The American valuable company has set up the company in China. In Japan, the engine bed transformation industry is called the engine bed to reequip (Retrofitting) industry. Is engaged in the reequipment industry famous company to include: Big indentation project group, hillock three mechanical companies, thousand substitute fields labor machine company, wild engineering firm, shore field engineering firm, mountain this engineering firm and so on.3.2 Numerical control transformation contentThe engine bed and the production line numerical control transformation main content has following several points:First is extensively recovers the function, to the engine bed, the production line has the breakdown partially to carry on the diagnosis andthe restoration;Second is NC, the addend reveals the installment on the ordinary engine bed, or adds the numerical control system, transforms the NC engine bed, the CNC engine bed;Third is renovates, for increases the precision, the efficiency and the automaticity, to the machinery, the electricity partially carries on renovates, reassembles the processing to the machine part, extensively recovers the precision; Does not satisfy the production request to it the CNC system to carry on the renewal by newest CNC;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 technology to renew or the technical innovation, the great scope raises the level and the scale renewal transformation. The new electrical system transforms after, how carries on the debugging as well as the determination reasonable approval standard, also is the technology preparatory work important link. The debugging work involves the machinery, the hydraulic pressure, the electricity, the control, and so on, therefore must carry on by the project person in charge, other personnel coordinate. 3.3 The numerical control transformation superiorly lacks3.3.1 reduced investment costs, the date of delivery are shortWith purchases the new engine bed to compare, may save 60% 80% expense generally, the transformation expense is low. Large-scale, the special engine bed especially is specially obvious. The common large-scale engine bed transforms, only spends the new engine bed purchase expense 1/3, the date of delivery is short. But some peculiarcircumstances, like the high speed main axle, the tray automatic switching unit manufacture and the installment too requires a lot of work, costs a great deal of money, often transforms the cost to enhance 2 3 times, with purchases the new engine bed to compare, only can economical invest about 50%.3.3.2 machine capability stable are reliable, the structure is limitedUses foundation and so on lathe bed, column all is heavy but the firm casting component, but is not that kind of welding component, after the transformation engine bed performance high, the quality is good, may take the new equipment continues to use many years. But receives the original mechanism the limit, not suitably makes the unprecedented transformation.3.3.3 familiar understood the equipment, is advantageous for the operation serviceWhen purchases the new equipment, did not understand whether the new equipment can satisfy its processing request. The transformation then otherwise, may precisely calculate the engine bed the processing ability; Moreover, because many years use, the operator already understood to the engine bed characteristic, uses and services the aspect to train the time in the operation short, effective is quick. The transformation engine bed as soon as installs, may realize the capacity load revolution.3.3.4 may fully use the existing conditionMay fully use the existing ground, does not need to like buys when the new equipment such to have reto construct the ground.3.3.5 may use the newest control technologyenhances the production equipment the automated level and the efficiency, improves the equipment quality and the scale, alters to the old engine bed now the horizontal engine bed.中文翻譯：數(shù)控機(jī)床改造一、數(shù)控系統(tǒng)發(fā)展簡史及發(fā)展趨勢綜述1946第一臺電子計(jì)算機(jī)是出世，這表明人類創(chuàng)造了可增強(qiáng)和部分代替腦力勞動(dòng)的工具。它與人類在農(nóng)業(yè)、工業(yè)社會(huì)中創(chuàng)造的，只是增強(qiáng)體力勞動(dòng)的工具相比，起了質(zhì)的飛躍，為人類進(jìn)入信息社會(huì)奠定基礎(chǔ)。6年后，1952，計(jì)算機(jī)技術(shù)應(yīng)用到了機(jī)床上，第一臺數(shù)控機(jī)床在美國出世。從此，傳統(tǒng)機(jī)床產(chǎn)生了質(zhì)的變化。近半個(gè)世紀(jì)以來，數(shù)控系統(tǒng)經(jīng)歷了兩個(gè)階段和六代的發(fā)展。1.1數(shù)控（NC）階段（1952 1970）早期計(jì)算機(jī)的運(yùn)算速度低，不夠大，對當(dāng)時(shí)的科學(xué)計(jì)算和數(shù)據(jù)處理的影響，但不能適應(yīng)機(jī)床實(shí)時(shí)控制的要求。人們不得不采用數(shù)字邏輯電路“打造”成一臺機(jī)床專用計(jì)算機(jī)作為數(shù)控系統(tǒng)，被稱為硬件連接數(shù)控（HARD-WIRED NC），簡稱為數(shù)控（NC）。隨著元器件的發(fā)展，這個(gè)階段歷經(jīng)了三代，即1952的第一代電子管；1959二代晶體管；1965第三代小規(guī)模集成電路。1.2計(jì)算機(jī)數(shù)控（CNC）階段（1970 現(xiàn)在）1970，通用小型計(jì)算機(jī)業(yè)已出現(xiàn)并批量生產(chǎn)。于是將它移植過來作為數(shù)控系統(tǒng)的核心部分，從此進(jìn)入了計(jì)算機(jī)數(shù)控（CNC）階段（“應(yīng)在一般”二字前面省略有電腦）。1971，美國英特爾公司在世界上第一次將計(jì)算機(jī)的兩個(gè)最核心的部件運(yùn)算器和控制器，用于在芯片的大規(guī)模集成電路技術(shù)集成，稱之為微處理器（微處理器），也可稱為中央處理單元（簡稱CPU）。微處理器應(yīng)用于1974在數(shù)控系統(tǒng)。這是因?yàn)樾⌒陀?jì)算機(jī)功能太強(qiáng)，控制一臺機(jī)床能力有富裕（因此曾用于控制多臺灣機(jī)床當(dāng)時(shí)，稱為對照組），不如采用微處理器經(jīng)濟(jì)合理。而且當(dāng)時(shí)的小型機(jī)可靠性不理想。早期的微處理器速度和功能雖然還不夠高，但可以通過多處理器結(jié)構(gòu)解決。由于微處理器是通用計(jì)算機(jī)的核心部件，故仍稱為計(jì)算機(jī)數(shù)控。1990，PC機(jī)（個(gè)人計(jì)算機(jī)，國內(nèi)習(xí)慣稱微機(jī)）的性能已發(fā)展到很高的階段，可以滿足作為數(shù)控系統(tǒng)核心部件的要求。數(shù)控系統(tǒng)從此進(jìn)入了基于PC的階段?？傊?，計(jì)算機(jī)數(shù)控階段也經(jīng)歷了三代。即1970個(gè)第四代小型機(jī)；1974五代第六代微處理器和1990（國外稱為PC-BASED）基于PC。還必須指出，雖然國外早已改稱為計(jì)算機(jī)數(shù)控（即數(shù)控）。還必須指出，雖然國外早已改稱為計(jì)算機(jī)數(shù)控（即CNC），但我國仍習(xí)慣稱數(shù)控（NC）。所以我們?nèi)粘Ｋf的“數(shù)控”，實(shí)質(zhì)上已是指“計(jì)算機(jī)數(shù)值控制”。1.3數(shù)控未來發(fā)展的趨勢1.3.1繼續(xù)向開放式，基于PC的第六代方向發(fā)展軟件和硬件資源，基于PC的豐富等特點(diǎn)，更多的數(shù)控系統(tǒng)生產(chǎn)廠家會(huì)走上這條道路。至少采用PC機(jī)作為它的前端機(jī)，來處理人機(jī)界面，編程，協(xié)會(huì)、聯(lián)網(wǎng)通信等問題，由原來的數(shù)值控制系統(tǒng)承擔(dān)責(zé)任。PC機(jī)所具有的友好的人機(jī)界面，將普及到所有的數(shù)控系統(tǒng)。遠(yuǎn)程通訊，遠(yuǎn)程診斷和維修將更加普遍。1.3.2和高精度的發(fā)展這是適應(yīng)機(jī)床向高速和高精度方向發(fā)展的需要。1.3.3向智能化方向發(fā)展隨著計(jì)算機(jī)領(lǐng)域的不斷滲透和發(fā)展人工智能，數(shù)字控制，智能化程度將不斷提高。（1）應(yīng)用自適應(yīng)控制技術(shù)數(shù)控系統(tǒng)能檢測過程中一些重要信息，并自動(dòng)調(diào)整系統(tǒng)的有關(guān)參數(shù)，達(dá)到改進(jìn)系統(tǒng)運(yùn)行狀態(tài)的目的。（2）引入專家系統(tǒng)指導(dǎo)加工將熟練工人和專家的經(jīng)驗(yàn)，在系統(tǒng)處理的一般規(guī)律和特殊規(guī)律的商店，以工藝參數(shù)數(shù)據(jù)庫為支撐，建立具有人工智能的專家系統(tǒng)。（3）引入故障診斷專家系統(tǒng)（4）智能化數(shù)字伺服驅(qū)動(dòng)器可以通過自動(dòng)識別負(fù)載，而自動(dòng)調(diào)整參數(shù)，使驅(qū)動(dòng)系統(tǒng)獲得最佳的運(yùn)行。第二，機(jī)床數(shù)控化改造的必要性2.1、微觀看改造的必要性從微觀上看，數(shù)控機(jī)床比傳統(tǒng)機(jī)床具有突出的優(yōu)勢，這些優(yōu)勢可能來自計(jì)算機(jī)數(shù)控系統(tǒng)所包含。2.1.1可以加工出傳統(tǒng)機(jī)床加工不曲線，曲面等復(fù)雜的零件。由于計(jì)算機(jī)有良好的操作能力，可以瞬時(shí)準(zhǔn)確地計(jì)算出每個(gè)坐標(biāo)軸瞬時(shí)應(yīng)該運(yùn)動(dòng)的運(yùn)動(dòng)量，因此可以復(fù)合成復(fù)雜的曲線或曲面。2.1.2可以實(shí)現(xiàn)加工的自動(dòng)化，而且是柔性自動(dòng)化，從而效率可以提高3 7倍比傳統(tǒng)機(jī)床。由于計(jì)算機(jī)有記憶和存儲(chǔ)能力，可以將輸入的程序記住并保存，然后按程序規(guī)定的順序自動(dòng)執(zhí)行，從而實(shí)現(xiàn)自動(dòng)化。數(shù)控機(jī)床只要更換一個(gè)程序，就可實(shí)現(xiàn)另一工件加工的自動(dòng)化，從而使單件和小批生產(chǎn)自動(dòng)化，故被稱為實(shí)現(xiàn)了“柔性自動(dòng)化”。2.1.3加工零件的精度高，尺寸分散度小，使裝配容易，不再需要“修理”。2.1.4可實(shí)現(xiàn)多工序的集中，減少之間的頻繁搬運(yùn)零件在機(jī)床。2.1.5擁有自動(dòng)報(bào)警，自動(dòng)監(jiān)控，自動(dòng)補(bǔ)償?shù)榷喾N自律功能，因而可實(shí)現(xiàn)長時(shí)間無人看管加工。2.1.6由以上五條派生的好處。例如：降低工人的勞動(dòng)強(qiáng)度，節(jié)省了勞動(dòng)力（一個(gè)人可以看管多臺灣機(jī)床），減少了工裝，縮短了新產(chǎn)品試制周期和生產(chǎn)周期，可對市場需求作出快速反應(yīng)等。以上這些優(yōu)越性是前人想象不到的，是一個(gè)非常重大的突破。此外，機(jī)床數(shù)控化推行FMC（柔性制造單元），F(xiàn)MS（柔性制造系統(tǒng)）以及CIMS（計(jì)算機(jī)集成制造系統(tǒng)）等企業(yè)信息化改造的基礎(chǔ)。數(shù)控技術(shù)已經(jīng)成為制造業(yè)自動(dòng)化的核心技術(shù)和基礎(chǔ)技術(shù)。2.2大手表轉(zhuǎn)型的必要性從宏觀上看，工業(yè)發(fā)達(dá)國家的武裝部隊(duì)，飛機(jī)的武器工業(yè)，在70年代末，80年代初開始的大規(guī)模應(yīng)用數(shù)控機(jī)床。其實(shí)質(zhì)是，采用信息技術(shù)對傳統(tǒng)產(chǎn)業(yè)（包括武裝部隊(duì)，飛機(jī)武器工業(yè)）進(jìn)行技術(shù)改造。除了用在數(shù)控機(jī)床，F(xiàn)MC，F(xiàn)MS在制造過程中，還包括在產(chǎn)品開發(fā)中進(jìn)行CAE，CAD，CAM，虛擬制造以及在生產(chǎn)管理中推行MIS（管理信息系統(tǒng)），CIMS等。以及在其生產(chǎn)的產(chǎn)品中增加信息技術(shù)，包括人工智能等內(nèi)容。由于采用信息技術(shù)對國家的外國軍隊(duì)，飛機(jī)武器業(yè)進(jìn)行徹底改造（稱之為信息化），最終導(dǎo)致他們在國際軍品產(chǎn)品在民品市場競爭力大為增強(qiáng)。但我們在信息技術(shù)改造傳統(tǒng)產(chǎn)業(yè)方面比發(fā)達(dá)國家落后約20年。如我國機(jī)床能力，數(shù)控機(jī)床的比例（數(shù)控化率）1995，只有1.9%，而日本已經(jīng)達(dá)到了20.8% 1994，因此每年都有大量的機(jī)電產(chǎn)品進(jìn)口。這也就從宏觀上說明了機(jī)床數(shù)控化改造的必要性。索，數(shù)控化改造的內(nèi)容和上缺乏3.1轉(zhuǎn)型起步在美國，日本，德國等發(fā)達(dá)國家，它們的機(jī)床改造作為新的經(jīng)濟(jì)增長行業(yè)，生意盎然，正處在黃金時(shí)代。由于機(jī)床以及技術(shù)的不斷進(jìn)步，機(jī)床改造是個(gè)“永恒”的主題。我國機(jī)床改造業(yè)，也從老的行業(yè)以數(shù)控技術(shù)為主的新的行業(yè)。在美國，日本，德國，用數(shù)控技術(shù)改造機(jī)床的廣闊的市場和生產(chǎn)線，形成了機(jī)床和生產(chǎn)線數(shù)控改造的新的行業(yè)。在美國，機(jī)床改造業(yè)稱為機(jī)床再生（再制造）產(chǎn)業(yè)。從事再生業(yè)的著名公司有：Bertsche工程公司，ayton機(jī)床公司，bullavd得寶（有價(jià)值的）服務(wù)集團(tuán)，美國設(shè)備公司等。美國有價(jià)值的公司已經(jīng)在中國成立的公司。在日本，機(jī)床改造業(yè)稱為機(jī)床改裝（改裝）行業(yè)。從事改裝行業(yè)的知名公司有：大隈工程集團(tuán)，崗三機(jī)械公司，千代域工機(jī)公司，野生的工程公司，工程公司，岸田，山此工程公司等。3.2數(shù)控化改造的內(nèi)容機(jī)床和生產(chǎn)線的數(shù)控化改造主要內(nèi)容有以下幾點(diǎn)：首先是廣泛的功能恢復(fù)，對機(jī)床，生產(chǎn)線發(fā)生故障的部分進(jìn)行診斷和恢復(fù)；二是數(shù)控，加數(shù)揭示了在普通機(jī)床上安裝，或加數(shù)控系統(tǒng)，改造數(shù)控機(jī)床，數(shù)控機(jī)床；第三是翻新，為提高精度，效率和自動(dòng)化程度，對機(jī)械，電氣部分進(jìn)行改造，重新組合加工機(jī)器零件，廣泛的恢復(fù)精度；不滿足生產(chǎn)要求的數(shù)控系統(tǒng)采用最新CNC進(jìn)行更新；第四是技術(shù)更新或技術(shù)創(chuàng)新，為提高性能或規(guī)模，或?yàn)榱耸褂眯鹿に?，新技術(shù)，在原有的基礎(chǔ)上的技術(shù)更新或技術(shù)創(chuàng)新進(jìn)行大規(guī)模，大范圍提高水平和檔次的更新改造。新的電氣系統(tǒng)改造后，如何進(jìn)行調(diào)試以及確定合理的驗(yàn)收標(biāo)準(zhǔn)，也是技術(shù)準(zhǔn)備工作的重要環(huán)節(jié)。調(diào)試工作涉及機(jī)械，液壓，電氣，控制，等等，因此必須進(jìn)行的項(xiàng)目負(fù)責(zé)人，其他人員協(xié)調(diào)。3.3、數(shù)控化改造的優(yōu)缺3.3.1 減少投資額、交貨期短同購置新機(jī)床相比，一般可以節(jié)省6080的費(fèi)用，改造費(fèi)用低。特別是大型、特殊機(jī)床尤其明顯。一般大型機(jī)床改造，只花新機(jī)床購置費(fèi)用的1/3，交貨期短。但有些特殊情況，如高速主軸、托盤自動(dòng)交換裝置的制作與安裝過于費(fèi)工、費(fèi)錢，往往改造成本提高23倍，與購置新機(jī)床相比，只能節(jié)省投資50左右。3.3.2 機(jī)械性能穩(wěn)定可靠，結(jié)構(gòu)受限所利用的床身、立柱等基礎(chǔ)件都是重而堅(jiān)固的鑄造構(gòu)件，而不是那種焊接構(gòu)件，改造后的機(jī)床性能高、質(zhì)量好，可以作為新設(shè)備繼續(xù)使用多年。但是受到原來機(jī)械結(jié)構(gòu)的限制，不宜做突破性的改造。3.3.3 熟悉了解設(shè)備、便于操作維修購買新設(shè)備時(shí)，不了解新設(shè)備是否能滿足其加工要求。改造則不然，可以精確地計(jì)算出機(jī)床的加工能力；另外，由于多年使用，操作者對機(jī)床的特性早已了解，在操作使用和維修方面培訓(xùn)時(shí)間短，見效快。改造的機(jī)床一安裝好，就可以實(shí)現(xiàn)全負(fù)荷運(yùn)轉(zhuǎn)。3.3.4 可充分利用現(xiàn)有的條件可以充分利用現(xiàn)有地基，不必像購入新設(shè)備時(shí)那樣需重新構(gòu)筑地基。3.3.5 可以采用最新的控制技術(shù)可根據(jù)技術(shù)革新的發(fā)展速度，及時(shí)地提高生產(chǎn)設(shè)備的自動(dòng)化水平和效率，提高設(shè)備質(zhì)量和檔次，將舊機(jī)床改成當(dāng)今水平的機(jī)床。