01 Nei Puzzle
Mushure mekunge bhodhi redunhu ragadzirwa, zvikamu zvinoda kuiswa paSMT chip assembly line.Imwe neimwe SMT yekugadziridza fekitori inotsanangura saizi yakakodzera kwazvo yebhodhi redunhu zvinoenderana nezvinodiwa zvekugadzirisa mutsara wegungano.Semuenzaniso, saizi idiki kana yakakura kwazvo, uye mutsara wegungano wakagadziriswa.Iyo tooling yebhodhi redunhu haigone kugadziriswa.
Ipapo mubvunzo unomuka, ko kana saizi yebhodhi yedu yedunhu pachayo idiki pane saizi yakapihwa nefekitari?Ndiko kuti, tinoda kuisa pamwe chete bhodhi redunhu uye kuunganidza akawanda edunhu mabhodhi muchidimbu chose.Kumisikidzwa kunogona kuvandudza zvakanyanya kushanda zvakanaka kwese kukwirisa-kumhanyisa kuisa michina uye kune wave soldering.
02 Tsanangudzo yePuzzle
○ Zviyero
a.Kuti zvive nyore kugadzirisa, iyo veneer board angle kana craft edge inofanirwa kunge iri R-mhando chamfer.Kazhinji, dhayamita yekona yakatenderedzwa ndeye Φ5.
b.Kana saizi yebhodhi iri pasi pe100mm × 70mm, PCB inofanira kuunganidzwa (ona Mufananidzo 3.1).
Dimension zvinodiwa zvepuzzle:
Kureba L: 100mm ~ 400mm
Upamhi W: 70mm ~ 400mm
○ PCB isingaite
MaPCB ane maumbirwo asina kujairika uye hapana jigs anofanirwa kunge aine mipendero yehunyanzvi.Kana iyo PCB iine maburi ane saizi yakakura kupfuura kana yakaenzana ne5mm × 5mm, maburi acho anofanira kupedzwa panguva yekugadzira kudzivirira kutenderedza uye deformation yebhodhi panguva yekutengesa.Chikamu chinopindirana uye chepakutanga PCB chikamu chinofanira kunge chiri kune rimwe divi Batanidza uye woibvisa mushure mekutengesa kwemafungu (ona Mufananidzo 3.2)
Kana kuwirirana pakati pemupendero wegadziriro nePCB igororo rakafanana neV, kureba pakati pekunze kwechigadziro uye V-shaped groove ndeye ≥2mm;apo kuwirirana pakati pemupendero wekuita uye PCB igomba retampu, zvishandiso nemitsetse hazvibvumirwi kurongeka mukati me2mm kumativi egomba rechitambi.
○ Puzzle
Kutungamira kwejigsaw kunofanirwa kugadzirwa kuenderana negwara remupendero wekutakura.Apo saizi haigone kusangana nezvinodiwa pamusoro pehukuru hwekuiswa, iyo yakasarudzika ndeye.Kazhinji inoda "V-CUT" kana nhamba yemitsara yeburi rezvitambi ≤ 3 (kunze kwezvinyoro zvitete), ona Mufananidzo 3.4
Kune iyo yakakosha-yakaumbwa bhodhi, teerera kune kubatana pakati pemwanasikana bhodhi uye mwanasikana bhodhi, uye edza kuita kubatana pane imwe neimwe nhanho yakaparadzaniswa pamutsetse, sezvakaratidzwa muMufananidzo 3.5.
03 pcb puzzle pamusoro gumi nyaya dzinoda kutariswa
Mumamiriro ezvinhu akajairwa, kugadzirwa kwePCB kuchadaidzwa kunzi Panelization (Panelization) mashandiro, chinangwa ndechekuwedzera kugadzirwa kweiyo SMT mutsara wekugadzira, ipapo PCB PCB, ndedzipi ruzivo rwatinofanira kutarisisa?Ngatitarisei pamwe chete.
1. Iyo yekunze furemu (clamping edge) yePCB puzzle inofanirwa kutora yakavharwa loop dhizaini kuti ive nechokwadi chekuti PCB pikicha haizokanganisika mushure mekunge yagadziriswa pafixture.
2. Chimiro chePCB puzzle chiri padyo neskweya sezvinobvira.Zvinokurudzirwa kushandisa 2 × 2, 3 × 3,….
3. PCB panel width ≤260mm (SIEMENS line) kana ≤300mm (FUJI line);kana otomatiki kugovera kuchidikanwa, PCB mapaneru upamhi × kureba≤125mm × 180mm.
4. Bhodhi rimwe nerimwe duku muPCB puzzle rinofanira kunge riine maburi matatu ekumisa, 3 ≤ aperture ≤ 6 mm, wiring kana kuvhara hazvibvumirwi mukati me 1 mm yemakomba ekumucheto.
5. Nzvimbo yepakati pakati pemahwendefa maduku inodzorwa pakati pe75mm ~ 145mm.
6. Paunenge uchiisa nzvimbo yekutarisa nzvimbo, kazhinji siya nzvimbo isina solder 1.5mm yakakura kupfuura nzvimbo yekumisikidza.
7. Panofanira kunge pasina midziyo mikuru kana midziyo inobudikira padyo nenzvimbo dzekubatanidza pakati pepuranga rekunze nemukati diki bhodhi, uye pakati pebhodhi diki nebhodhi diki, uye panofanira kuva nenzvimbo inodarika 0.5mm pakati pe mipendero yezvikamu uye PCB Kuve nechokwadi chekuti mudziyo wekucheka unomhanya zvakajairika.
8. Makomba mana ekumisa anovhurwa pamakona mana ekunze kwepuranga, uye gomba dhayamita i4mm ± 0.01mm;kusimba kwegomba kunofanira kunge kuri pakati nepakati kuti ive nechokwadi chekuti haizoputsika panguva dzepamusoro uye pasi mahwendefa..
9. Iwo mareferenzi zviratidzo anoshandiswa PCB chinzvimbo uye yakanaka-pitch mudziyo chinzvimbo.Muchidimbu, maQFP ane pitch isingasviki 0.65mm anofanirwa kuiswa panzvimbo dzawo dzediagonal;mareferenzi ekumisikidza anoshandiswa pakumisikidza PCB mwanasikana mabhodhi anofanirwa kupetwa Shandisa, isa diagonally kuchinhu chekumisikidza.
10.Zvikamu zvakakura zvinofanirwa kunge zvine zvigaro zvekumisa kana maburi ekuisa, kutarisa paI / O interface, maikorofoni, bhatiri interface, micro switch, headphone interface, mota, nezvimwe.