Faira reCentroid rePCB Assembly Rinoshandiswa mukugadzira SMT

KuHighleap Electronics , tinoongorora mafaira e centroid (placement/XY) zuva rega rega ekugadzira PCB uye SMT assembly . Kutumira kunze kwe centroid kwakarurama chete kana kuchienderana nedata rekugadzira . Izvi zvinoreva kuti Gerber outline , drill data , BOM revision , uye chero mitemo yepanelization inofanira kubva papakeji imwe chete yekuvaka.

Gwaro iri rinotsanangura maitirwo ekugadzira data re centroid rakajeka, rinowirirana, uye rakagadzirira kurongwa kwefekitori. Rinotevera mitemo inoshanda yakafanana nezvinodiwa zvedu zve pick-and-place-file —nekuti mafaira e centroid nemafaira e pick-and-place anowanzova seti yedata rekuisa data rimwe chete pasi pemazita akasiyana.

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Chii chinonzi faira recentroid

Faira repakati rinonziwo faira rekuisa zvikamu , faira reXY , kana faira rekusarudza nekuisa . Rinoudza muchina wekusarudza nekuisa weSMT nzvimbo yepakati (kana nzvimbo yakatarwa yekutora ) yechikamu chimwe nechimwe, kutenderera kwacho , uye kana chakaiswa kudivi repamusoro kana rezasi rePCB.

Munguva yeNPI kana yekutanga kuvaka, muunganidzi anowanzo tarisa faira repakati pemaGerbers (outline + pads) uye BOM kuti asimbise kuti macoordinates uye maorientation acho anoenderana nekuvandudzwa kwebhodhi kuri kuunganidzwa.

Faira reCentroid uye faira rekusarudza nekuisa

Zvishandiso zvakawanda zveCAD zvinoshandisa mazwi ekuti centroid na pick na place vachichinjana. Mukuita, ese ari maviri anowanzo kuve nemakoramu akafanana: RefDes , X , Y , Rotation , naSide . Misiyano inowanzova misoro, mazita emakoramu, kana template yekuburitsa kunze.

Kana uchida ruzivo rwakajeka rwemafomati nemaitiro, tarisa gwara redu rekusarudza-uye-kuisa-faira-requirements.

Nei kururamisa kwepakati pepakati kuchikosha

Zvikanganiso zveCentroid zvinova zvikanganiso zvekuisa bhora panzvimbo yaro. Pama "passives" madiki uye "fine-pitch packages", kunyangwe "offset" diki inogona kuwedzera "tombstone", "skew", "bridging", uye "AOI false calls". Kana "pitch" yakamira, ndipo panonyanya kuomarara pakuronga uye kutenderera.

Cherechedza: Magadzirirwo ari pamusoro apa anongoratidza chete. Kugona kwekuisa zvinhu kunoenderana nemuenzaniso wemuchina, saizi yebhodhi, mafiducials, kudzora stencil/paste, uye kugadzirisa maitiro.

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Zvinodiwa zvefomati yefaira reCentroid

Faira repakati rinogadzirwa nefekitori rinofanira kuverengwa nemuchina uye risingakanganisike. CSV neTXT yakaderedzwa netab zvese zvinogamuchirwa nevanhu vakawanda. Chinonyanya kukosha ma columns akafanana, minda ye coordinate yenhamba chete, uye manotsi akajeka e ma units , origin , uye rotation convention.

Kuti zvienderane zvakanaka, gadzirisa kutumira kwako ne pick-and-place-file-requirements : ita kuti data ritsanangurwe wega kunyangwe faira rakavhurwa kunze kwechishandiso chako cheCAD.

Makoramu anodiwa

• Murongi weReferensi (RefDes) inofanira kuenderana neBOM
• Nzvimbo yeX nhamba inorongeka kubva pakutanga kwakatsanangurwa
• Nzvimbo yeY nhamba inorongeka kubva pakutanga kwakatsanangurwa
• Kuchinja madhigirii enhamba ane tsika yakanyorwa
• divi Pamusoro kana Pazasi

Makoramu anokurudzirwa

• Kukosha kana tsananguro inobatsira fekitari kusimbisa chikamu chekirasi nekukurumidza
• Pakeji kana tsoka inobatsira kuziva mafeeder nema nozzles
• MPN zvingasarudzwa asi zvinobatsira pakuderedza kusanzwisisika kwezvishandiso zvemakiti

Manotsi emusoro anofanira kusanganisira

• Units mm kana mil (mm ndiyo inonyanya kufarirwa)
• mavambo kona yepazasi kuruboshwe yemufananidzo webhodhi kana pakati pebhodhi—taura zvakajeka
• Zvinoreva kubatana chikamu chepakati pechikamu vs nzvimbo yekutora—taura zvakajeka
• Kutenderera kutungamira masisitimu mazhinji anoshandisa CCW positive, asi simbisa kutumira kwako kweCAD
• Rotation range 0–360 (dzivisa ma angle asina kunaka kunze kwekunge wanyora zvakajeka)
• Maitiro epasi tsanangura kana data reBottom rakataridzwa kana kuti kwete
• Kugadziriswazve kwebhodhi inofanira kuenderana neGerbers neBOM revision

# Centroid File - Board Rev A
# Units: Millimeters
# Origin: Lower-left corner of board outline
# Coordinates represent: Component centroid (center of footprint)
# Rotation: Counterclockwise positive, 0–360
# Bottom data: Not manually mirrored (handled by import tool if needed)
#
RefDes,X(mm),Y(mm),Rotation(deg),Side,Value,Package,MPN
C1,5.080,12.700,0,Top,100nF,0603,CL10B104KB8NNNC
C2,7.620,12.700,0,Top,1uF,0603,GRM188R61E105KA12D
R1,10.160,15.240,90,Top,10K,0402,RC0402FR-0710KL
U1,25.400,20.320,0,Top,MCU,LQFP48,STM32F103C8T6
U2,35.560,20.320,180,Bottom,Driver,QFN-16,EXAMPLE-MPN

Kurongeka kwakarongeka

• pasipasi Nzvimbo nhatu dzedesimali (mm)
• varumbidzwa Nzvimbo ina dzedesimali dzeSMT yakakora
• Muganho unoshanda Nzvimbo 6 dzedesimali—kupfuura izvi hazviwanzorevi chinhu

Kana uri kugadzirira pasuru yakazara yekutumirwa kwefaira kupfuura mafaira epakati pemasendimita—kusanganisira Gerbers, drill, BOM, uye mifananidzo—shandisa runyorwa urwu kuti usapotsa zvinhu: Zvinodiwa zvakakwana zvefaira rekuunganidza.

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Maonero anoita ma "centroid coordinates"

Mazhinji maturusi eCAD anotumira ma "centroid coordinates" kubva kutsanangudzo ye "footprint library". Kana mavambo e "footprint" kana "pickup point" zvikasatsanangurwa zvisizvo, "centroid" inogona kugadziriswa kunyangwe ma "pads" akaita seakarurama mu "editor". Kunzwisisa common centroid logic kunokubatsira kubata matambudziko e "library" nekukurumidza—asati ava matambudziko e "assembly programming".

Zvikamu zvemapedhi maviri

Kune zvikamu zvechip zvinoenzana, centroid inowanzova pakati penzvimbo dzemapad:

X_centroid = (X_pad1 + X_pad2) / 2
Y_centroid = (Y_pad1 + Y_pad2) / 2

Ma-IC ane mapini akawanda

Kune tsoka dzinozivikanwa dzeQFP, QFN, uye SOIC, centroid inowanzova pakati pemapad array (kana pakati pemuviri wakatsanangurwa). Matambudziko anowanzo bva pakuiswa kwetsoka kubva pakutanga kana maitiro asina kurongeka eraibhurari.

• Chinyorwa chetsoka chakaiswa pakona panzvimbo pepakati pemuviri
• Raibhurari yakavakwa kubva pane imwe nzira yakasiyana (courtyard vs body vs pad array centre)
• Nzvimbo isiriyo yekutorwa pazvikamu zvine chimiro chisina kujairika

BGAs

Kune maBGA, centroid inowanzova pakati pebhora, kazhinji iri pakati pemakona akatarisana:

X_centroid = (X_A1 + X_corner_opposite) / 2
Y_centroid = (Y_A1 + Y_corner_opposite) / 2

Zvinobatanidza uye zvikamu zvisina chimiro

Kune zvikamu zvisina kufanana, nzvimbo yakanakisisa yekuiswa inogona kunge iri nzvimbo yekutorwa kwedatasheet pane nzvimbo yepakati pemuviri. Izvi zvakajairika kune maconnector makuru, mamodule, nhoo, uye zvikamu zvine asymmetric mass distribution. Kana datasheet ikatsanangura nzvimbo yekutorwa, shandisa iyo woinyora mumusoro wenyaya.

Simbisa Faira Rako reCentroid

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Polarity yekutenderera uye zvikamu zvakakosha

Kunyangwe paine ma coordinates eX neY akakodzera, matambudziko ekutenderera anogona kumisa kuvaka. Vagadziri vema assembly vanowanzo simbisa kutenderera nekutarisa zvikamu zvidiki zve anchor: IC imwe yePin 1 , mudziyo mumwe wakasanganiswa, uye kanenge chikamu chimwe chepasi kuti vasimbise maitiro e mirroring.

Musangano wekutenderera uye zero referensi

• Kutenderera kwakanangana newachi kunowanzova kwakanaka, asi kwete kwese kwese
• Zero referensi inotsanangurwa ne default footprint library orientation
• Usa "gadzirisa" kutenderera muExcelgadzirisa mitemo yeraibhurari/kutumira kunze kwenyika uye gadzira patsva
• Zvikamu zviri pasi zvingada kuratidzwa pagirazi zvichienderana nemagadzirirwo eCAD export uye factory import tool

Zvikamu zvakasanganiswa

• ICs simbisa kuti Pin 1 inoenderana nePCB marking uye package indicator
• Madiodhi neTVS simbisa kuti mutsetse we cathode unoenderana nepatani yenyika uye silkscreen
• Electrolytics uye tantalum simbisa kuti zviratidzo zve polarity zvinoenderana ne pad polarity

Zvikamu zve LED zvinonyatsoenderana nedhinda uye zvinhu zve fiducial

• LEDs centroid pakati pemuviri; kutenderera kunotsanangura kurongeka kweanode/cathode
• Zvinobatanidza zvinodzvanywa nepress-fit sanganisira chete kana yakaiswa nemuchina; cherechedza chero nzira yakakosha yekubata nayo
• Fiducials shandisa nzvimbo chaiyo yefiducial; kutenderera kwacho kwakagadzirirwa pa0

Kuti uwane gwara rakakura rekugadzira maPCB assembly—kusanganisira fiducials, tooling rails, keep-outs, uye mitemo yepaneru—ona mitemo yekugadzira maPCB.

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Maitiro ekusimbisa faira re centroid

Nzira iri nyore uye inodzokororwa yekusimbisa inobata matambudziko mazhinji ane chekuita ne centroid usati wagadzira. Tanga watarisa pane zvikanganiso zvehurongwa zvakaita se origin , ma units , uye rotation convention . Wobva watsvaga matambudziko e footprint akasiyana.

Kutarisa pamusoro pemufananidzo

• Nzvimbo dzepakati pevhu dzinofukidza Gerber outline uye copper pads (chikamu chekuunganidza chinobatsira)
• Tarisa zvikamu zvekona kutanga kuti uone kusawirirana kwepakutanga nekukurumidza
• Simbisa chikamu chimwe chete muchikamu chimwe nechimwe: mapassive, maIC, zvikamu zvakapoterera, zvikamu zvepazasi

Macheki otomatiki

• Enzanisa huwandu hwezvikamu neBOM (zvikamu zvakaiswa chete)
• Simbisa kuti makoronisheni ese ari mukati mebhodhi
• Tarisa kana paine macoordinates akafanana (anogona kuratidza zvikamu zvakarongeka, zvinhu zvakagadziriswa, kana matambudziko ekutumira kunze kwenyika)
• Tarisa hunhu hwekutenderera zvakanaka uye tarisa makona asina kujairika

Ruzivo rwemhinduro rwenyaya yekutanga

• Ongorora nzvimbo mushure mekutanga uye ongorora chero nzira yakarongeka
• Nyora kugadzirisa uye kugadzirisa marongero ekutumira kunze kweCAD kana tsananguro dzeraibhurari
• Gadzirisa faira re centroid kubva pakushandurwa kwakafanana nekwaGerbers neBOM

Kutumidzwa kwepakeji yekupa magwaro kunokurudzirwa (kunodzivirira kusawirirana kwekugadzirisa)

• Zita reProject_RevA_Gerber.zip
• ProjectName_RevA_Drill.zip (kana kuti inowanikwa muGerber zip)
• Zita reProject_RevA_BOM.xlsx
• ProjectName_RevA_Centroid.csv
• ProjectName_RevA_AssemblyDrawings.pdf

Kana muchida imwe nhanho yekuwedzera yekuchengetedza mapuranga akakora, tsoka itsva, kana kuvaka kekutanga, mainjiniya edu anogona kuongorora mavambo, mayuniti, uye maitiro ekutenderera usati wagadzira: Ongororo yemahara yeDFM.

Bata Highleap Electronics kuti uwane mibvunzo pamusoro pemafaira epakati kana rubatsiro rwekusimbisa—kunyanya kana usina chokwadi nezvetsanangudzo yekwakabva, marongero eyuniti, kana maitiro ekutenderera pasi.