A lokacin aikin walda a kanultrasonic welder, shigar da siginar lantarki zuwa tsarin sauti yana canzawa da sauri, kuma kewayon bambancin mitar yana da faɗi.Don haɓaka saurin ma'auni da daidaito, da farko, ana ɗaukar matakan zaɓi guntu tare da saurin amsawa da sauri, kuma ana sarrafa adadin lokaci na ɓangaren da mahaɗin tacewa na kewayen guntu don zama ƙasa da 0.2 ms , don tabbatar da jimlar lokacin amsawar tsarin bai wuce 2 ms ba, da kuma biyan buƙatun gano siginar lantarki mai saurin canzawa.Don tabbatar da buƙatun girman girman mitar mitar mita da halaye na tsarin, an zaɓi nau'in resistor nau'in RCK tare da madaidaicin daidaito da kwanciyar hankali, wanda ke da ƙarancin inductance da ƙarfi.Za a zaɓi abubuwan da aka haɗa Op-amp tare da haɓaka buɗaɗɗen madauki fiye da 10 da haɓakar madauki na ƙasa da 10. Ta wannan hanyar, ana iya samun madaidaicin madaidaicin mitar mita daga 0 ~ 20 kHz ± 3 kHz.Mai zuwa shine taƙaitaccen bayanin kowane tsarin aiki.
1.1 Ma'auni na Vrms na ƙarfin lantarki RMS
Kayan gwajin da aka haɓaka a cikin wannan takarda na iya auna siginar wutar lantarki ta sinusoidal tare da murdiya tare da RMS na 0 ~ 1 000 V da mita na 20 kHz± 3 kHz.Ana fitar da wutar lantarki ta shigarwa ta sigina, ana canza ƙimar RMS zuwa AC/DC, sannan a daidaita daidai gwargwado zuwa tashoshi biyu na fitarwa.Ana ba da tashoshi ɗaya zuwa kan 3-bit Semi-dijital head head akan gaban panel na mai gwadawa, wanda kai tsaye ke nuna ƙimar RMS na ƙarfin lantarki 0-1 000 V.Ɗayan yana fitar da siginar wutar lantarki na analog 0 ~ 10 V ta hanyar baya na mai gwadawa don samun bayanai da bincike ta kwamfuta.
Ana iya fitar da siginar wutar lantarki ta hanyar mai canza wutar lantarki, firikwensin Hall element ko na'urar musayar hoto.Wadannan hanyoyin
Kodayake keɓewar yana da kyau, zai samar da digiri daban-daban na karkatar da igiyar igiyar ruwa da ƙarin canjin lokaci don siginar lantarki na 20 kHz, wanda ke da wahala a tabbatar da daidaiton ma'aunin wutar lantarki da ma'aunin kusurwa na zamani.Wannan labarin yana AMFANI da amplifier na daidaitacce zuwa sarrafa siginar wutar lantarki, juriya na shigar da amplifier ta amfani da 5. 1 M Ψ, wannan al'amari na iya sa ƙarar siginar shigarwar, babban kariyar matsi don da'irori masu zuwa, kuma sakamakon haɓakar shigar da amplifier yayi nisa sosai. siginar tushen juriya na janareta na ultrasonic, yanayin aikin janareta na ultrasonic ba shi da wani tasiri.
AD637 ana amfani dashi don auna ƙarfin lantarki RMS.Mai jujjuyawar AC-DC RMS ne tare da daidaiton juzu'i mai girma da faffadan mitar mitoci, kuma jujjuyawar ta kasance mai zaman kanta daga tsarin igiyar ruwa.Mai sauya RMS ne na gaskiya.Matsakaicin kuskure shine kusan 1%.Lokacin da waveform factor ya kasance 1 ~ 2, ba a sami ƙarin kuskure ba.
1.2 Ma'auni mai inganci na yanzu
Da'irar ganowar RMS na yanzu da aka haɓaka a cikin wannan takarda na iya gano siginar na yanzu tare da murɗawar sinusoidal na 0 ~ 2 A, 20 kHz ± 3 kHz.Ta hanyar ɗaukar daidaitattun juriya na samfuran da aka haɗa a cikin jeri zuwa madauki madauki na janareta na ultrasonic a cikin FIG.1, an fara canza na'urar zuwa siginar wutar lantarki daidai da shi.Tunda juriya samfurin na'urar tsayayya ce mai tsafta, ba zai kawo murɗawar siginar igiyoyin ruwa na yanzu ko ƙarin canjin lokaci ba, don tabbatar da daidaiton aunawa.Siginar wutar lantarki da ta yi daidai da na yanzu tana jujjuya siginar wutar lantarki ta analog ta RMS AC-DC Converter AD637, wanda ake fitarwa zuwa kai na dijital da kwamfuta ta hanyoyi biyu.Ka'idar juzu'i iri ɗaya ce da ta juyar wutar lantarki ta RMS.
1.3 Auna ƙarfin aiki
Siginar ma'aunin wutar lantarki mai aiki yana fitowa daga ƙarancin ƙarfin lantarki da siginar I/V da aka canza a cikin ma'aunin ma'aunin RMS na ƙarfin lantarki da na yanzu.Babban ma'aunin ma'aunin wutar lantarki shine AD534 analog multiplier da da'irar tacewa.Bayan an ninka ƙarfin wutar lantarki ta nan take ta hanyar mai ninka mai gudana a halin yanzu, ana tace bangaren mai girma don samun ainihin ƙarfin aiki.
1. 4 Auna bambancin lokaci tsakanin halin yanzu da ƙarfin lantarki
Bambancin lokaci tsakanin ƙarfin shigarwa da na yanzu na ultrasonic transducer ana auna ta ta hanyar siffata ƙarfin shigarwar da sigina na yanzu a cikin raƙuman murabba'in ta hanyar kwatancen sifili-tsalle-tsalle, sannan haɓaka bambancin lokaci ta hanyar sarrafa dabaru na XOR.Saboda ba kawai bambancin lokaci tsakanin wutar lantarki da na yanzu ba, har ma da bambanci tsakanin gubar da lag, Ming Yang ya kuma kera tsarin da'ira na lokaci don gano alakar gubar da tabarbarewa.Idan kana da wata bukata sai a tuntube mu.
1.5 Ma'aunin mita
Ma'aunin ma'aunin mitar yana ɗaukar microcomputer 8051 guntu guda ɗaya, ta amfani da daidaitaccen mitar kristal, ƙididdige siginar bugun jini a cikin takamaiman lokacin sigina, ana iya gane shi a cikin 1 ms, mitar shine 20 kHz, kuskuren bai wuce 2 Hz ba.Ana fitar da sakamakon auna mitar ta lambobi masu binaryar 16-bit, shigarwa zuwa katin I/O na kwamfuta, kuma ana canza su zuwa ainihin ƙimar mitar mitoci ta shirye-shiryen software.
Ultrasonic filastik waldi an kammala a karkashin nan take da kuma matsa lamba, da waldi tsari yana nuna halaye na sauri, hadaddun, wuya da Multi-Siga tasiri.A lokacin da kuma bayan waldi, babba danniya da kuma nakasawa (welding saura nakasawa, waldi shrinkage, waldi warping) za a samar, da kuma tsauri danniya da waldi saura danniya generated a cikin waldi tsari, amma kuma shafi nakasawa na workpiece da waldi lahani.
Har ila yau, yana rinjayar weldability na tsarin aikin aiki da ƙarfin karaya, ƙarfin gajiya, ƙarfin yawan amfanin ƙasa, halayen girgiza da sauransu.Musamman shafi waldi workpiece machining daidaito da girma kwanciyar hankali.Matsalar walda thermal danniya da nakasawa ne mai matukar wahala, ba tare da hangen nesa, ba zai iya comprehensively tsinkaya da kuma nazarin tasirin waldi a kan inji Properties na dukan welder, da kuma haƙiƙa kimanta waldi quality.A lokaci guda kuma, yawancin mahimman bayanai, wato tasiri, ba za a iya auna su kai tsaye ta hanyoyin al'ada ba.
Mu ƙwararrun R & D ne, samarwa, da tallace-tallace naultrasonic waldi inji, na'ura mai girma na walda, karfe waldi inji, Ultrasonic janaretamasana'anta.Muna farin cikin raba goyan bayan fasaha na duban dan tayi da ƙwarewar yanayin duban dan tayi.Idan kuna da aikin da za ku tuntuɓi, da fatan za a gaya mana kaya da girman samfuran ku.Za mu samar muku da wani free ultrasonic waldi shirin.
Lokacin aikawa: Oktoba-20-2022