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1、長(zhǎng)春工業(yè)大學(xué)畢業(yè)設(shè)計(jì)中文摘要由于近代工業(yè)發(fā)展的需要，機(jī)床對(duì)生產(chǎn)效率、加工精度提出更高的要求。機(jī)床在結(jié)構(gòu)上發(fā)生改變，床身也增大了，尤其對(duì)加工尺寸的大小也逐漸增大。大直徑鉆銑床主要用于對(duì)大直徑圓形零部件在圓周上進(jìn)行銑削和在規(guī)定位置上進(jìn)行銑平面或鉆孔,它的主控系統(tǒng)采用Siemens的SINUMERIC802Cbaseline控制,由PLC信號(hào)作為引導(dǎo)和控制,利用光柵尺作為反饋信號(hào)。在本次設(shè)計(jì)過(guò)程中,動(dòng)力裝置采用了易于控制的步進(jìn)電機(jī),控制方式為閉環(huán)控制,傳感器采用精度較高，使用比較普遍的經(jīng)濟(jì)型數(shù)字量規(guī)作為閉環(huán)控制的反饋元件。機(jī)械執(zhí)行機(jī)構(gòu)采用滾珠絲杠副結(jié)構(gòu)完成機(jī)床的橫、豎向運(yùn)動(dòng)，機(jī)械導(dǎo)向機(jī)構(gòu)采用滾珠導(dǎo)軌
2、與滑動(dòng)導(dǎo)軌相結(jié)合的方式完成橫、豎向?qū)?。?shù)控機(jī)床是新型的自動(dòng)化機(jī)床，它具有廣泛通用性和很高的自動(dòng)化程度。數(shù)控機(jī)床為工人提供了良好的工作環(huán)境，它具有高度的柔性，所以大大縮短了生產(chǎn)周期，同時(shí)也減少了工作強(qiáng)度。數(shù)控機(jī)床是近代工業(yè)的里程碑。關(guān)鍵詞大直徑圓形零部件；閉環(huán)控制；伺服電機(jī)53長(zhǎng)春工業(yè)大學(xué)畢業(yè)設(shè)計(jì)TitleLarge-diameterboredmillingmachinedesignandcontrolAbstractDuetothe?developmentof?modern?industry,?machinetools?andputforwardhigherrequirementsof?pr
3、oductionefficiency,?machiningprecision.?Changes?inthestructure?ofmachinetool,?lathebed?arealsoincreased,?especiallyfortheprocessing?size?increases.Largediameter?drillingandmillingmachine?ismainlyusedfor?largediametercircularparts?milling?incircumference?and?inthespecifiedposition?onthe?planemilling?
4、ordrilling,?themaincontrol?systemusingthesame?Siemens?SINUMERIC802C?base?linecontrol,?the?PLC?signalasthe?guidanceand?control,?using?gratingasfeedback?signal.Inthisdesignprocess,?thepower?device?isadoptedinthe?controlofthe?steppingmotor,?controlmethod?forclosedloopcontrol,?sensor?usingthehighprecisi
5、on,theuseofeconomic?typedigital?gauge?morecommon?asthefeedbackelement?ofclosed-loopcontrol.?Mechanicalactuator?usingaballscrew?structuretocompletethe?transverse,?vertical?movementofthemachinetool,?mechanicalguidemechanism?withball?guiderailandthesliding?railscompletionofacombinationofhorizontal,?ver
6、ticalguide.NCmachinetoolisa?newtypeofautomatedmachinetools;?ithasawiderangeofgeneric?andahighdegreeofautomation.?CNC?machinetool?provides?excellentworkingenvironmentfor?workers,?it?ishighly?flexible,?so?greatly?shortentheproductioncycle,?butalsoreducethe?workintensity.?NCmachinetoolisthemilepost?ofm
7、odernindustry.KeywordsLarge-diametercircularparts；closed-loopcontrol；Step-by-steptheelectricalmachinery53長(zhǎng)春工業(yè)大學(xué)畢業(yè)設(shè)計(jì)目錄1概述11.1緒論11.2數(shù)控技術(shù)的發(fā)展水平和趨勢(shì)21.2.1國(guó)內(nèi)數(shù)控技術(shù)的發(fā)展水平21.2.2.數(shù)控技術(shù)的發(fā)展?fàn)顩r及水平31.3系統(tǒng)設(shè)計(jì)方案61.4系統(tǒng)設(shè)計(jì)內(nèi)容62
