Isingeniso

Naphezu kokuthuthuka okusheshayo kwe PCB ubuchwepheshe, abakhiqizi abaningi be-PCB bagxila ekukhiqizeni ibhodi ye-HDI, ibhodi eqinile ye-flex, i-backplane nezinye izingxenye zebhodi ezinzima, kepha kusekhona amanye ama-PCBS anesifunda esilula, usayizi omncane kakhulu weyunithi nokuma okuyinkimbinkimbi emakethe ekhona, kanye nobuncane usayizi wamanye ama-PCBS mncane ngisho no-3-4mm. Ngakho-ke, usayizi weyunithi yamapuleti ekilasi mncane kakhulu, futhi izimbobo zokubeka azikwazi ukwakhiwa ngesikhathi sokwakhiwa kwangaphambi kokuphela. Kulula ukukhiqiza ipuleti onqenqemeni lwamaphoyinti e-convex (njengoba kukhonjisiwe ku-FIG. 1) ngokusebenzisa indlela yokuma yangaphandle, i-vacuum PCB ngesikhathi sokucubungula, ukubekezelelana okungalawuleki komumo, ukusebenza kahle kokukhiqiza kanye nezinye izinkinga. Kuleli phepha, kwenziwa i-ultra-small size PCB ifundwa futhi ihlolwe ngokujulile, indlela yokucubungula ukwakheka yenziwe kahle, futhi umphumela uwumphumela ophindwe kabili ngenxenye yomzamo wenqubo yangempela yokukhiqiza.

Ingxoxo ngomklamo womumo wokunemba okuphezulu nosayizi omncane we-PCB

1. Ukuhlaziywa Kwesimo

Ukukhethwa kwemodi yemishini yokuma kuhlobene nokulawulwa kokubekezelelana kokuma, izindleko zokumisa ukuma, ukusebenza kahle kwemishini nokunye. Njengamanje, izindlela ezivamile zokucubungula umumo ziyimidwebo yokugaya futhi ziyafa.

Isimo sokugaya esingu-1.1

Ngokuvamile, ukubukeka kwekhwalithi yepuleti elicutshungulwa ngokuma kokugaya kuhle, futhi ukunemba kobukhulu kuphezulu. Kodwa-ke, ngenxa yobukhulu obuncane bepuleti, ukunemba kobukhulu besimo sokugaya kunzima ukusilawula. Lapho isimo sokugaya, ngenxa yegong ngaphakathi kwe-arc, i-gong Angle ngaphakathi komkhawulo wosayizi nobubanzi be-groove, ukukhetha usayizi wokusika kunemikhawulo emikhulu, isikhathi esiningi singakhetha kuphela i-1.2 mm ne-1.0 mm, i-0.8 mm noma i-milling cutter ukucubungula, ngoba ithuluzi lokusika lincane kakhulu, imikhawulo yejubane lokudla, okuholela ekusebenzeni kahle kokukhiqiza kuphansi, futhi izindleko zokukhiqiza ziphakeme kakhulu, ngakho-ke kufanelekile inani elincane, Ukubukeka okulula, akukho ukucubungula kokubukeka kwangaphakathi kwe-PCB okuyinkimbinkimbi.

1.2 ngife

Enkambisweni yamanani amancane we-PCB encane, umthelela wokusebenza kahle kokukhiqiza uphakeme kakhulu kunomthelela wezindleko zokugaya, kulokhu, ukuphela kwendlela yokwamukela okufayo. Ngasikhathi sinye, ngezinsimbi ezingaphakathi ku-PCB, amanye amakhasimende adinga ukuthi acutshungulwe abe ngama-engeli angakwesokudla, futhi kunzima ukuhlangabezana nezidingo ngokubhola nokugaya, ikakhulukazi kulabo be-PCB abanezidingo eziphakeme zokubekezelelana kohlobo nokuma kokuma, kuyadingeka ukwamukela imodi yokunyathela. Ukusebenzisa inqubo yokwakha kuphela kuzokhulisa izindleko zokukhiqiza.

2 Umklamo Wokuhlola

Ngokusekelwe kokuhlangenwe nakho kwethu kokukhiqiza kwalolu hlobo lwe-PCB, senze ucwaningo olunzulu nokuhlola okuvela kuzici zokugaya ukwakheka kokuma, ukunyathela isitofu, i-V-cut nokunye. Uhlelo oluthile lokuhlola lukhonjiswa kuThebula 1 ngezansi:

Ingxoxo ngomklamo womumo wokunemba okuphezulu nosayizi omncane we-PCB

Inqubo Yokuhlola

3.1 Isikimu 1 —- intaba yokugaya umshini wegong

Lolu hlobo lwe-PCB elincane kakhulu alinakho ukuma kwangaphakathi, okudinga izimbobo zokubeka ezengeziwe kuleyunithi (ISITHOMBISO. 2). Lapho ukuphela kohlangothi lwesithathu lwezinsimbi, uhlangothi lokugcina lwezinsimbi, kunezindawo ezivulekile ezungeze ibhodi, ukuze iphuzu lomsiki lingagcizelelwa, umkhiqizo oqediwe wonkana uqondiswa yi-milling cutter offset , ukuze umkhiqizo osuqediwe ubunjwe ngephuzu lomsiki iphuzu le-convex elisobala. Ngoba zonke izinhlangothi bezilokhu zingena esimweni esimisiwe, akukho ukwesekwa, ngaleyo ndlela kwandise amathuba okuba nokushayeka kanye nama-burrs. Ukugwema lokhu kudideka kwekhwalithi, kuyadingeka ukwengeza ibhande le-gong ngokugaya ipuleti kabili, ukugaya ingxenye yeyunithi ngayinye kuqala ukuqinisekisa ukuthi kusekhona izingcezwana zokuxhuma ngemuva kokucubungula ukuxhuma ifayili lephrofayli lonke (ISITHOMBE. 3).

Ingxoxo ngomklamo womumo wokunemba okuphezulu nosayizi omncane we-PCB

Ithonya lesilingo se-gong machining kuphuzu le-convex: izinhlobo ezimbili ezingenhla zebhande le-gong zacutshungulwa, izingcezu eziyi-10 zepuleti eliqediwe zikhethwe ngokungahleliwe ngaphansi kwesimo ngasinye, futhi iphuzu le-convex lilinganiswe kusetshenziswa i-quadratic element. Usayizi wephoyinti eliyi-convex wepuleti eliqediwe elicutshungulwa ngebhande langempela le-gong likhulu futhi lidinga ukucubungulwa okwenziwa ngesandla. Iphuzu le-convex lingagwenywa ngempumelelo ngokusebenzisa izinsimbi ezenziwe ngemishini ezenzelwe kahle. 0.1mm, uhlangabezane nezidingo zekhwalithi (bheka Ithebula 2), ukubukeka kuboniswa kuMdwebo 4, 5.

Ingxoxo ngomklamo womumo wokunemba okuphezulu nosayizi omncane we-PCB

3.2 Hlela 2 —- Umshini wokugaya ocacile womshini wokugaya

Njengoba okokusebenza kokuqopha kungamiswa ngesikhathi sokucubungula, ibhande le-gong kuMfanekiso 3 alinakusetshenziswa. Ngokusho kokukhiqizwa kwebhande le-gong kuMdwebo 2, ngenxa yosayizi omncane wokucubungula, ukuze kuvinjelwe ipuleti eliqediwe ukukhishwa ngesikhathi sokucubungula, kuyadingeka ukucisha ukukhipha ngesikhathi sokucubungula, bese usebenzisa ipuleti umlotha ukuyilungisa, ukunciphisa ukukhiqizwa kwamaphoyinti e-convex.

Umphumela wokuhlolwa kokucutshungulwa okuhle kwephoyinti eliyi-convex: usayizi we-convex point ungancishiswa ngokucubungula ngokuya ngenqubo yokucubungula engenhla. Usayizi wephoyinti ozwakalayo ukhonjisiwe kuThebula 3. Iphoyinti eliyi-convex alikwazi ukuhlangabezana nezidingo zekhwalithi, ngakho-ke idinga ukucubungulwa okwenziwa ngesandla. Ukubukeka kuboniswe kuMdwebo 6:

Ingxoxo ngomklamo womumo wokunemba okuphezulu nosayizi omncane we-PCB

3.3 Scheme 3 —- Ukuqinisekiswa komphumela womumo we-Laser

Khetha imikhiqizo enobukhulu obungaphandle obuyi-inthanethi obungu-1 * 3mm bokuhlolwa, yenza amafayela wephrofayili ye-laser emigqeni engaphandle, ngokuya ngamapharamitha akuThebula 4, cisha ukucisha (ukuvimbela ipuleti lingamunzwa ngesikhathi sokulungiswa), bese wenza okuphindwe kabili Iphrofayili ye-laser emaceleni.

Ingxoxo ngomklamo womumo wokunemba okuphezulu nosayizi omncane we-PCB

Ezenye: ukuma laser ukucutshungulwa ebhodini ngaphandle uhlevane imikhiqizo, ukucutshungulwa usayizi kungaba ukuhlangabezana nezidingo, kodwa laser emva ukuma umkhiqizo siphelile ngoba laser carbon black ebusweni ukungcoliswa komhlaba, futhi lolu hlobo ukungcola ngenxa yobukhulu incane kakhulu, ayikwazi sebenzisa ukuhlanza i-plasma, sebenzisa utshwala ukuhlanza akukwazi ukuphatha kahle (bheka isithombe 7), imiphumela enjalo yokucubungula ingahlangabezana nezidingo zamakhasimende.

3.4 Isikimu 4 —- Umphumela wokuqinisekiswa kweday

Ukucutshungulwa kwe-Die kuqinisekisa ukunemba kosayizi nokuma kwezingxenye zokugaya, futhi alikho iphuzu le-convex (njengoba kukhonjisiwe ku-FIG. 8). Kodwa-ke, ngenkathi kwenziwa imishini, kulula ukukhiqiza ukulimala okungajwayelekile kokucindezelwa kwekhoneni (njengoba kukhonjisiwe ku-FIG. 9). Amaphutha anjalo angavamile.

Ingxoxo ngomklamo womumo wokunemba okuphezulu nosayizi omncane we-PCB

Isifinyezo esingu-3.5

Ingxoxo ngomklamo womumo wokunemba okuphezulu nosayizi omncane we-PCB

4. Isiphetho

Leli phepha ligxile ezinkingeni ezisezindongeni ze-PCB ezinemba ngobunono kanye nosayizi omncane onokubekezelela kokuma kwe +/- 0.1mm. Uma nje idizayini enengqondo yenziwa kwinqubo yedatha yobunjiniyela futhi imodi yokucubungula efanele ikhethwa ngokuya ngezinto ze-PCB nezidingo zamakhasimende, izinkinga eziningi zizoxazululwa kalula.