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1、基于微機(jī)的多梳櫛經(jīng)編機(jī)的研究中文摘要通過(guò)對(duì)機(jī)械式多梳櫛經(jīng)編機(jī)的機(jī)構(gòu)和運(yùn)動(dòng)分析，配合對(duì)氨綸面料的加工工藝，研制了基于電腦的多梳櫛經(jīng)編機(jī)。傳統(tǒng)的多梳櫛經(jīng)編機(jī)的執(zhí)行機(jī)構(gòu)要求加工精度高、結(jié)構(gòu)復(fù)雜。通過(guò)對(duì)步進(jìn)電機(jī)的運(yùn)動(dòng)特性分析，結(jié)合滾珠絲桿的高效性和同步性好，提出了用步進(jìn)電機(jī)滾珠絲桿驅(qū)動(dòng)梳櫛，再由控制系統(tǒng)補(bǔ)償誤差的辦法，簡(jiǎn)化了機(jī)構(gòu)，試驗(yàn)結(jié)果表明執(zhí)行機(jī)構(gòu)能滿(mǎn)足經(jīng)編機(jī)加工的要求?？刂葡到y(tǒng)由MCS8032擴(kuò)展程序存儲(chǔ)器和數(shù)據(jù)存儲(chǔ)器，從而有足夠的存儲(chǔ)單元存儲(chǔ)多種經(jīng)編花型的數(shù)據(jù)，縮短了經(jīng)編加工的輔助時(shí)間，用霍爾元件作為梳櫛動(dòng)作開(kāi)始輸
2、入信號(hào)，運(yùn)用了絕對(duì)編碼器反饋，有效的補(bǔ)償了步進(jìn)電機(jī)的失步。步進(jìn)電機(jī)驅(qū)動(dòng)器運(yùn)用了高低壓驅(qū)動(dòng)電路，光電隔離信號(hào)輸入/輸出，設(shè)有電壓過(guò)低、過(guò)熱及過(guò)流保護(hù)，提高了步進(jìn)電機(jī)的可靠性。步進(jìn)電機(jī)的升降速用軟件查表的方式，按階梯升降速達(dá)到快速定位的目的。軟件設(shè)有斷點(diǎn)保護(hù)程序，確保當(dāng)意外停機(jī)時(shí)，保存當(dāng)前的加工參數(shù)，以便再開(kāi)機(jī)時(shí)能繼續(xù)中斷的工作。在工廠現(xiàn)場(chǎng)的實(shí)際測(cè)試中，增加了系統(tǒng)的抗干擾措施。使系統(tǒng)能在電磁場(chǎng)強(qiáng)的場(chǎng)所穩(wěn)定工作。實(shí)驗(yàn)結(jié)果表明，控制系統(tǒng)能穩(wěn)定地工作，執(zhí)行加工準(zhǔn)確地完成要求的動(dòng)作。關(guān)鍵詞:多梳櫛經(jīng)彰#}1,1Tt16}J.
3、;。巍升降速抗干擾丫廠ThestudyofthemultibarmachinecontrolledbycomputerABSTRACTTheMultibarMachinebasedoncomputerisdevelopedbykinematicanalysisofpaternguidebarchainlinksinmulti-guidebarmachines.Theactuatoriscomplexandmanufacturedaccuratelyintheexitingmulitbarmachine.Stepp
4、ingmotorscanturnwithcertainangelcontrolledbycomputer.Ballscrewworkeffectivelyandsynchronously.Steppingmotorandballscrewareusetoforcebarinmultibarmachine.Iftherearesomepositionerrors,thecontrollingsystemcompareserrors.Itisresultonexperimentthatexecutiveframewo
5、rkworkcorrectlyThecontrollingsystemiscomposedbyMCS51,programstorageanddatastorageandsoon.Itafordsenoughcapacityformanydatathatcontainsomepaterninordertoreduceassistant-processtime.Thesensorisusedasasignal-import.Thesignalthatreflectsteppingmotorloststepisposi
6、tionfeedbackthoughtabsolutetypeencoder.Usingthissign,thecontrollingsystemdrivesteppingmotortocompensatetheloststep.Steppingmotordriverhassomefunction.Whensteppingmotoristoohotdrivercanturnpoweroff.Whendriverbegintodrivesteppingmotordriverafordhighvoltageandwh
7、endrivermaintainthesteppingmotorrotorthedriversupplelowvoltage.Signal-importandsignal-exportarepassedonphotoelectricelement.Computationmethodisintroducedonraidingandreducingspeedofsteppingmotor.Thedesignprocessofspeedcontrolsoftwareisdiscussedandaparticularpl
8、anonspeedcontrolwithinshortdistanceisputforth.Themethodhasadvantagesoffeasibility,reliabilityandsmooth.Whentheprocessisstoppedsuddenlythepositionconditioncanstorageinprogram.Whencondition
