Kanthi pangembangan industri informasi elektronik, produk elektronik terminal duwe syarat sing luwih dhuwur lan luwih kanggo refinement saka PCB industri. Pengeboran minangka langkah penting ing manufaktur PCB, sing wis dikembangake kanthi diameter bolongan minimal 0.08mm, jarak bolongan maksimal 0.1mm utawa tingkat sing luwih dhuwur. Saliyane nindakake bolongan, bolongan bagean, alur, bolongan khusus, wangun piring, lan liya-liyane, kabeh kudu dipriksa. Cara ndeteksi kualitas pengeboran papan PCB kanthi efisien lan akurat wis dadi link penting kanggo njamin kualitas produk. Mesin inspeksi bolongan PCB mung minangka peralatan inspeksi optik otomatis sing digunakake ing pamriksa kualitas pengeboran. Tujuan saka kertas iki yaiku kanggo nganalisa fungsi mesin uji bolongan ing proses pengeboran lan menehi pengalaman referensi kanggo produsen PCB.

Ing proses pengeboran PCB, perlu kanggo ngontrol masalah kualitas ing ngisor iki: porositas, bocor, pamindahan, pengeboran salah, non-penetrasi, mundhut bolongan, sampah, ngarep, bolongan plug. Saiki, cara kontrol macem-macem manufaktur utamane kanggo nggawe standarisasi proses pengeboran sadurunge pengeboran lan nguatake sarana inspeksi sawise pengeboran. In actual production, because the pre-drilling method can only reduce the probability of error, can not completely eliminate, we must rely on post-drilling inspection to ensure product quality.

In the post-drilling inspection, many domestic manufacturers are still using the plug gauge combined with artificial visual film (film) set inspection method: through the plug gauge focus on checking the hole, hole small, through the film focus on porous, leaky hole, shift, not through, not through, other hole damage, front, hole plug through artificial visual to complete. Nalika nggunakake inspeksi film, saben pengeboran produk ngebor sampel film abang, inspeksi liwat pin lan piring produk tetep, inspeksi visual manual ing sangisore kothak cahya. In theory, this method can detect all kinds of defects, but in practice, the effect is greatly discounted.

The main problems are as follows:

Kaping pisanan, syarat pamriksan aperture cilik ora bisa dijamin: praktik produksi nuduhake manawa kanggo PCB kanthi aperture minimal ≥0.5mm, manual bisa entuk asil pamriksan sing luwih dhuwur miturut premis kanggo njamin efisiensi produksi tartamtu. This is determined by the minimum discernable visual Angle of the human eye, the working distance, and the attention span. Kanthi nyuda ukuran aperture, kanggo piring produk ing ngisor 0.5mm, kemampuan inspeksi mata manungsa bakal mudhun kanthi cepet, kanggo piring produk ≤0.25mm, manual malah kualitas sampling angel kanggo mesthekake.

Kapindho, efisiensi inspeksi manual diwatesi: efisiensi inspeksi manual langsung ana hubungane karo jumlah bolongan lan aperture minimal. The actual production experience shows that the efficiency will be significantly reduced when the hole is more than 10000 and the smallest hole is less than 0.5mm. Manual inspection is only suitable for sampling. Kanggo piring Kapadhetan dhuwur, ora bisa njamin kualitas pengeboran kanthi manual.

Katelu, stabilitas kualitas ora bisa dijamin: wong bakal kena pengaruh pengalaman, swasana ati, lemes, tanggung jawab lan faktor liyane, iku angel kanggo njamin stabilitas kualitas. Some manufacturers can not use multiple artificial, repeated inspection method, but still can not ensure the stability of quality.

In order to solve the above problems, many LARGE PCB factories have adopted hole inspection AOI equipment to replace manual labor in a large range. Utamané kanggo Enterprises Japanese lan Taiwan-mbiayai, akeh taun laku wis mbuktekaken efektifitas saka cara anyar iki, kang worth manungsa waé lan referensi saka akeh manufaktur PCB domestik.

Peralatan inspeksi bolongan AOI kalebu peralatan inspeksi optik otomatis. Miturut wangun gambar saka macem-macem cacat pengeboran, bisa dipérang dadi: keropos, kurang bolongan, bolongan gedhe, bolongan cilik, ampas, bolongan panyimpangan lan wangun bolongan. Iki dipérang dadi rong jinis: siji yaiku mesin inspeksi Lubang, liyane yaiku ukuran Lubang lan mesin inspeksi (bolongan-AOI). Ing laku, ana uga mesin inspeksi sinar-X, sing utamané digunakake kanggo analisis bolongan wuta sing dikubur lan papan multi-lapisan, sing ora konsisten karo tujuan inspeksi jaket film manual lan ora kalebu ing ruang lingkup analisis. kertas iki.

Miturut pengalaman sing cocog karo peralatan manufaktur PCB, disaranake nggunakake macem-macem set mesin mriksa bolongan kanggo mriksa lengkap piring pisanan lan piring ngisor, fokus ing pamriksan bolongan, sawetara bolongan, bolongan gedhe, bolongan cilik lan lebu; Mesin pangukuran lan pamriksa posisi bolongan digunakake kanggo mriksa titik, fokus ing panyimpangan bolongan. The characteristics of the two devices are as follows:

Hole checking machine: the advantages are low price, fast inspection efficiency, check a 600mm×600mm PCB average of 6~7 seconds, can realize the porous, less hole, hole, small hole, residual inspection. Kerugian yaiku kemampuan kanggo mriksa posisi bolongan ora dhuwur, lan mung cacat serius sing bisa dideteksi. Miturut pengalaman produksi nyata pabrikan, umume 15 RIGS dilengkapi mesin mriksa bolongan 1.

Posisi bolongan ukuran lan mesin mriksa: kauntungan iku kabeh item bisa dicenthang. Kerugian yaiku rega dhuwur (kira-kira 3 ~ 4 kaping mesin inspeksi bolongan), efisiensi inspeksi kurang, butuh sawetara menit utawa luwih suwe kanggo mriksa 1 potong. It is generally recommended to configure one machine for product sampling inspection to supplement the deficiency of hole checking machine for hole position inspection.

Inspection principle of hole inspection AOI equipment: PCB drilling image is collected by optical system, and compared with the design document (drill tape file or Gerber file). If the two are consistent, it indicates that the drilling is correct; otherwise, it indicates that there is a problem in the drilling, and then analyze and classify the defect type according to the image morphology. The hole inspection equipment is compared with the design documents of drilling, and the manual visual inspection is compared with the film. In terms of the inspection principle, the problems caused by the film drilling errors can be avoided, and the reliability is higher.

analisis teknologi mesin testing bolongan PCB

Peranan mesin mriksa bolongan ing proses pengeboran PCB dibayangke ing aspek ing ngisor iki:

Pisanan, inspeksi kualitas pengeboran sing efisien lan stabil:

Pemriksaan rutin: keropos, kurang keropos, bolongan gedhe, bolongan cilik lan cacat bisa dicenthang bebarengan ing kacepetan aperture minimal 0.15mm lan 8m / min, lan lokasi cacat ditandhani lan gambar cacat dideleng kanggo nyedhiyakake basis pertimbangan manual .

Inspeksi lebu: ing pamriksan pengeboran pisanan, lebu ora dadi fokus perhatian; Nanging sadurunge electroplating, lebu kudu cukup manungsa waé. Supaya kanggo ngurangi pengaruh lebu ing kualitas udan tembaga, manufaktur PCB umume mbusak lebu dening mecah lan reresik sadurunge electroplating, nanging ing laku, iku isih ora 100% resik, efek reresik piring Kapadhetan dhuwur luwih elek. Secara teoritis, ana kethokan ing saben PCB, saengga ora bisa mriksa kabeh bolongan ing kabeh produk, gumantung ing inspeksi visual manual, nanging mesin inspeksi bolongan bisa.

Quality improvement: stability is the biggest advantage of equipment, stable product quality can enhance the brand influence of PCB factory, directly improve the ability of manufacturers to receive orders.

Kapindho, bantu departemen produksi lan kualitas ing analisis statistik data:

Analisis alat: bisa njelasno rata-rata panyimpangan diameteripun bolongan pengeboran beda pribadi ngebur ing PCB, ngawasi bisa nyandhang alat ngebur ing wektu nyata, golek masalah alat salah ing wektu, lan supaya piring sampah kumpulan.

Analisis kapasitas: bisa ngumpulake kapasitas produksi saben dina, saben wulan, seprapat lan tahunan lan efisiensi produksi rata-rata, nyedhiyakake data analisis kanggo macem-macem cara kontrol, lan ningkatake operasi pabrik lan kemampuan manajemen.

Analisis mesin: bisa ngetung output, macem-macem lan masalah kualitas saben rig, nambah kemampuan kanggo ngatur rincian mesin.

Katelu, hemat biaya, rasio input-output dhuwur:

Personel inspeksi: ing premis kanggo njamin kualitas lan ningkatake efisiensi, 2 ~ 3 personel inspeksi bisa disimpen kanthi rata-rata kanthi mesin inspeksi bolongan.

Bahan mentah: bisa ngirit biaya materi film, sing luwih migunani kanggo pabrik batch medium lan cilik.

Customer complaint: it can save the cost of return order and fine caused by drilling defects. Although it is not as direct as the personnel and materials saved, the average annual cost saved is even higher than the purchasing cost of hole inspection machine.

Kanthi syarat kualitas sing luwih dhuwur saka manufaktur PCB kanggo proses pengeboran, kanthi tekanan nambah biaya tenaga kerja lan kemampuan inspeksi manual sing ora cukup, pentinge mesin inspeksi bolongan saya tambah jelas.

Panggunaan mesin inspeksi bolongan wis luwih saka sepuluh taun, fungsi lan kinerja peralatan terus saya tambah, lan tingkat kerjasama karo produksi saya tambah cedhak. Utamane kanthi pangembangan papan kanthi kapadhetan dhuwur, mesin inspeksi bolongan wis mboko sithik diowahi saka peralatan tambahan asli dadi peralatan pendukung utama. Ing transformasi peralatan akeh tanduran lawas PCB lan preparation saka tetanduran anyar, popularitas peralatan mesin testing bolongan bakal liyane lan liyane dhuwur.