a) : Isetshenziselwa ukukala umshini wokuhlola ikhwalithi yokuphrinta ye-solder yokunyathelisa i-SPI ngemva komshini wokunyathelisa: Ukuhlolwa kwe-SPI kwenziwa ngemva kokunyathelisa kokunamathisela kwe-solder, futhi amaphutha enqubweni yokuphrinta angatholakala, ngaleyo ndlela kuncishiswe amaphutha e-solder okubangelwa ukunamathisela okungalungile kwe-solder. ukuphrinta okungenani.Iziphambeko zokuphrinta ezijwayelekile zihlanganisa amaphuzu alandelayo: i-solder enganele noma eyeqile kuma-pads;ukuphrinta offset;amabhuloho amathani phakathi kwama-pads;ukujiya kanye nevolumu ye-solder paste ephrintiwe.Kulesi sigaba, kufanele kube nedatha yokuqapha inqubo enamandla (i-SPC), njengokuphrinta kwe-offset kanye nolwazi lwevolumu ye-solder, kanye nolwazi lwekhwalithi mayelana ne-solder ephrintiwe futhi luzokhiqizwa ukuze luhlaziywe futhi lusetshenziswe ngabasebenzi benqubo yokukhiqiza.Ngale ndlela, inqubo iyathuthukiswa, inqubo iyathuthukiswa, futhi izindleko ziyancipha.Lolu hlobo lwemishini okwamanje luhlukaniswe izinhlobo ze-2D ne-3D.I-2D ayikwazi ukukala ukujiya kokunamathisela kwe-solder, kuphela umumo we-solder unama.I-3D ingakwazi ukukala kokubili ubukhulu be-solder paste kanye nendawo yokunamathisela i-solder, ukuze ivolumu yokunamathisela i-solder ingabalwa.Ngokwenziwa kwezingxenye ezincane, ubukhulu bokunamathisela kwe-solder obudingekayo ezingxenyeni ezifana ne-01005 bungama-75um kuphela, kanti ubukhulu bezinye izingxenye ezinkulu ezivamile bungaba ngu-130um.Iphrinta ezenzakalelayo engaphrinta ugqinsi lwe-solder yokunamathisela isivele.Ngakho-ke, i-3D SPI kuphela engahlangabezana nezidingo zokulawula inqubo yokunamathisela ye-solder yesikhathi esizayo.Ngakho hlobo luni lwe-SPI esingahlangabezana nalo ngempela izidingo zenqubo esikhathini esizayo?Ikakhulukazi lezi zidingo:
- Kufanele kube yi-3D.
- Ukuhlolwa kwesivinini esiphezulu, isilinganiso samanje se-laser SPI ukujiya sinembile, kodwa isivinini asikwazi ukuhlangabezana ngokugcwele nezidingo zokukhiqiza.
- Ukukhulisa okulungile noma okulungisekayo (i-optical and digital magnification yimingcele ebaluleke kakhulu, le mingcele inganquma amandla okugcina okuthola idivayisi. Ukuze uthole ngokunembile amadivayisi angu-0201 kanye ne-01005, ukukhuliswa kwe-optical kanye nedijithali kubaluleke kakhulu, futhi kuyadingeka ukuqinisekisa ukuthi I-algorithm yokuthola enikezwe isofthiwe ye-AOI inokulungiswa okwanele nolwazi lwesithombe).Kodwa-ke, lapho i-pixel yekhamera isilungisiwe, ukukhuliswa kuhambisana ngokuphambene ne-FOV, futhi usayizi we-FOV uzophazamisa isivinini somshini.Ebhodini elifanayo, izingxenye ezinkulu nezincane zikhona ngesikhathi esifanayo, ngakho-ke kubalulekile ukukhetha ukulungiswa kwe-optical okufanelekile noma ukulungiswa kwe-optical adjustable ngokusho kobukhulu bezingxenye zomkhiqizo.
- Umthombo wokukhanya ozikhethela wona: ukusetshenziswa kwemithombo yokukhanya ehlelekayo kuzoba yindlela ebalulekile yokuqinisekisa izinga eliphezulu lokuthola isici.
- Ukunemba okuphezulu nokuphindaphinda: Ukwenziwa okuncane kwezingxenye kwenza ukunemba nokuphindaphindwa kwezinto ezisetshenziswa enqubweni yokukhiqiza kubaluleke kakhulu.
- Izinga lokwahlulela ngokungalungile eliphansi kakhulu: Kuphela ngokulawula izinga lokungahluleli kahle okuyisisekelo lapho ukutholakala, ukukhetha nokusebenza kolwazi olulethwe umshini kunqubo lungasetshenziswa ngempela.
- Ukuhlaziywa kwenqubo ye-SPC kanye nokwabelana ngolwazi olunephutha ne-AOI kwezinye izindawo: ukuhlaziya inqubo ye-SPC enamandla, umgomo wokugcina wokuhlola ukubukeka uwukuthuthukisa inqubo, ukulungisa inqubo, ukufeza isimo esifanele, nokulawula izindleko zokukhiqiza.
b) .I-AOI phambi kwesithando somlilo: Ngenxa ye-miniaturization yezingxenye, kunzima ukulungisa ukukhubazeka kwengxenye ye-0201 ngemva kokudayiswa, futhi ukukhubazeka kwezingxenye ze-01005 akukwazi ukulungiswa ngokuyisisekelo.Ngakho-ke, i-AOI ephambi kwesithando somlilo izobaluleka kakhulu.I-AOI ephambi kwesithando somlilo ingathola amaphutha enqubo yokubeka njengokungaqondani kahle, izingxenye ezingalungile, izingxenye ezingekho, izingxenye eziningi, kanye ne-polarity ehlehlayo.Ngakho-ke, i-AOI ephambi kwesithando somlilo kufanele ibe ku-inthanethi, futhi izinkomba ezibaluleke kakhulu isivinini esikhulu, ukunemba okuphezulu nokuphindaphinda, nokungahluleli kahle okuphansi.Ngesikhathi esifanayo, ingakwazi futhi ukwabelana ngolwazi lwedatha nohlelo lokuphakelayo, ithole kuphela izingxenye ezingalungile zezingxenye zokugcwalisa uphethiloli ngesikhathi sokugcwaliswa kukaphethiloli, inciphise ukubika okungalungile kwesistimu, futhi iphinde idlulisele ulwazi lokuphambuka lwezingxenye ohlelweni lokuhlela lwe-SMT ukuze lulungiswe. uhlelo lomshini we-SMT ngokushesha.
c) I-AOI ngemva kwesithando somlilo: I-AOI ngemva kwesithando somlilo ihlukaniswe yaba izinhlobo ezimbili: ku-inthanethi nokungaxhunyiwe ku-inthanethi ngokwendlela yokugibela.I-AOI ngemva kwesithando somlilo ingumgcinisango wokugcina womkhiqizo, ngakho okwamanje iyona esetshenziswa kakhulu i-AOI.Idinga ukuthola amaphutha e-PCB, ukonakala kwengxenye kanye nawo wonke amaphutha enqubo kuwo wonke umugqa wokukhiqiza.Umthombo wokukhanya we-LED wedome enemibala emithathu kuphela ongabonisa ngokugcwele izindawo zokumanzisa ezihlukene ze-solder ukuze kutholwe kangcono ukonakala kokusoda.Ngakho-ke, esikhathini esizayo, yi-AOI kuphela yalo mthombo wokukhanya enendawo yokuthuthukiswa.Yiqiniso, esikhathini esizayo, ukuze ubhekane nama-PCB ahlukene Ukuhleleka kwemibala kanye ne-RGB yemibala emithathu nakho kuyahleleka.Kuyavumelana nezimo.Ngakho-ke hlobo luni lwe-AOI ngemva kwesithando somlilo olungahlangabezana nezidingo zokuthuthukiswa kokukhiqizwa kwe-SMT esikhathini esizayo?Leyo:
- ijubane eliphezulu.
- Ukunemba okuphezulu nokuphindaphinda okuphezulu.
- Amakhamera anokucaca okuphezulu noma amakhamera anokucaca okuguquguqukayo: ahlangabezana nezidingo zejubane nokunemba ngesikhathi esisodwa.
- Ukungahluleli kahle okuphansi kanye nokwahlulela okugejiwe: Lokhu kudinga ukuthuthukiswa kusofthiwe, futhi ukutholwa kwezici zokushisela cishe kubangele ukungahluleli kahle kanye nokwahlulela okugejiwe.
- I-AXI ngemva kwesithando somlilo: Amaphutha angahlolwa ahlanganisa: amalunga e-solder, amabhuloho, amatshe amathuna, i-solder enganele, izimbotshana, izingxenye ezilahlekile, izinyawo eziphakanyisiwe ze-IC, i-IC encane ithini, njll. Ikakhulukazi, i-X-RAY ingaphinda ihlole amalunga afihliwe njenge-BGA, PLCC, CSP, njll. Kuyisithasiselo esihle ekukhanyeni okubonakalayo kwe-AOI.
Isikhathi sokuthumela: Aug-21-2020