Milling Cutter Basics

Milling cutter ezisisiseko

Yintoni into yokusika?

Ukusuka kwimbono yengcali, i-milling cutter sisixhobo sokusika esisetyenziselwa ukugaya. Iyakwazi ukujikeleza kwaye ibe nezinyo elinye okanye ngaphezulu lokusika. Ngethuba lenkqubo yokusila, izinyo ngalinye linqumla isibonelelo se-workpiece rhoqo. Isetyenziswa ikakhulu kwiinqwelomoya, amanyathelo, iigrooves, ukwenza umphezulu kunye nokusika izixhobo zokusebenza kumatshini wokugaya. Umhlaba omxinwa wenziwa kwi-flank ukwenza i-angle yokukhulula, kwaye ubomi bawo buphezulu ngenxa ye-angle yokusika efanelekileyo. Umva we-pitch milling cutter uneendlela ezintathu: umgca othe tye, i-curve kunye nomgca wokugoba. Imiqolo yomgca isoloko isetyenziselwa abasiki be-fine-toothed finishing cutters. Iigophe kunye ne-creases zinamandla angcono amazinyo kwaye ziyakwazi ukumelana nemithwalo enzima yokusika, kwaye zihlala zisetyenziselwa ukusika izinyo ezirhabaxa.

Zeziphi iindawo zokusika eziqhelekileyo?

I-Cylindrical milling cutter: isetyenziselwa ukwenza iinqwelomoya kumatshini wokusila othe tye. Amazinyo asasazwa kwisangqa se-milling cutter kwaye ahlulwe abe ngamazinyo athe tye kunye namazinyo ajikelezayo ngokwemilo yezinyo. Ngokwenani lamazinyo, kukho iindidi ezimbini zamazinyo arhabaxa namazinyo acolekileyo. I-Spiral tooth coarse-tooth milling cutter inamazinyo ambalwa, ukomelela kwamazinyo aphezulu, indawo enkulu yetshiphu, ilungele ukwenziwa ngokurhabaxa; i-fire-tooth milling cutter ifanelekile ukugqitywa;

Umsiki wokungqusha ubuso: osetyenziselwa oomatshini bokungqusha ngokuthe nkqo, oomatshini bokungqusha ubuso okanye oomatshini bokungqusha begantry. Ubuso besiphelo senqwelomoya kunye nesangqa sinamazinyo namazinyo arhabaxa kunye namazinyo amahle. Isakhiwo sineentlobo ezintathu: uhlobo oludibeneyo, uhlobo lokufaka kunye nohlobo lwesalathisi;

I-End Mill: isetyenziselwa ukwenza iigrooves kunye nemigangatho yokunyathela. Amazinyo aphezu kwesangqa kunye nobuso bokugqibela. Abanakondliwa kwicala le-axial ngexesha lokusebenza. Xa isiphelo sokusila sinezinyo lokugqibela elidlula phakathi kwiziko, linokuthi lityiswe nge-axially;

I-cutter ye-edge milling cutter emacala amathathu: isetyenziselwa ukutshiza iigrooves ezahlukeneyo kunye nobuso benyathelo ngamazinyo kumacala omabini kunye nomjikelezo;

I-Angle milling cutter: isetyenziselwa ukungqusha igroove nge-engile, zombini ii-engile enye kunye nezisiki zokusila ezineengile ezimbini;

I-Saw blade milling cutter: isetyenziselwa ukutshiza iigrooves ezinzulu kunye nokusika izixhobo zokusebenza ngamazinyo amaninzi kwisangqa. Ukuze kuncitshiswe i-angle ye-friction ye-cutter, kukho i-15'~ 1 ° ukuhla okwesibini kumacala omabini. Ukongeza, kukho abasiki be-keyway milling, abasiki be-dovetail milling, abasiki be-T-slot milling kunye nabasiki abahlukeneyo.

Ziziphi iimfuno zezinto zokwenziwa kwenxalenye yokusika i-milling cutter?

Izinto eziqhelekileyo zokuvelisa i-milling cutters ziquka izixhobo ze-speed-speed tool, ii-alloys ezinzima ezifana ne-tungsten-cobalt kunye ne-titanium-cobalt-based alloys eqinile. Kakade ke, kukho izinto ezikhethekileyo zentsimbi ezinokusetyenziswa ukwenza abasiki bemilling. Ngokuqhelekileyo, ezi zixhobo zetsimbi Zineempawu ezilandelayo:

1) Ukusebenza kakuhle kwenkqubo: ukwenza, ukusetyenzwa kunye nokulola kulula;

2) Ubunzima obuphezulu kunye nokuxhatshazwa kokugqoka: Kwiqondo lokushisa eliqhelekileyo, inxalenye yokusika kufuneka ibe nobunzima obaneleyo ukusika kwi-workpiece; inokumelana nokunxiba okuphezulu, isixhobo asigqoki kwaye sandisa ubomi benkonzo;

I-3) Ukumelana nokushisa okulungileyo: isixhobo siya kuvelisa ukushisa okukhulu ngexesha lokusika, ngakumbi xa isantya sokusika siphezulu, ukushisa kuya kuba phezulu kakhulu. Ngoko ke, izixhobo zesixhobo kufuneka zibe nokumelana nokushisa okulungileyo, nangona kubushushu obuphezulu. Inokugcina ubunzima obuphezulu kwaye inamandla okuqhubeka nokusika. Olu hlobo lobunzima bobushushu obuphezulu bukwabizwa ngokuba yi-thermosetting okanye ubulukhuni obubomvu.

I-4) Amandla aphezulu kunye nokuqina okuhle: Ngexesha lenkqubo yokusika, isixhobo kufuneka sithwale impembelelo enkulu, ngoko ke isixhobo kufuneka sibe namandla aphezulu, ngaphandle koko kuya kuba lula ukuphuka kunye nokulimala. Ekubeni umsiki wokusila uphantsi komothuko kunye nokungcangcazela, izinto zokusika izinto zokusila kufuneka zibe nokuqina okuhle, ukuze kungabikho lula ukutshiphuza kunye ne-chip.

Kwenzeka ntoni emva kokuba isixhobo sokusila sitshitshisiwe?

1. Ukususela kwimilo yecala lemela, umgca wemela unomhlophe oqaqambileyo;

2. Ukususela kwimilo ye-chip, ii-chips ziba lukhuni kunye ne-flake-shaped, kunye nombala we-chips umfusa kunye nomsi ngenxa yokunyuka kweqondo lokushisa;

3. Inkqubo yokusila ivelisa iintshukumo eziqatha kakhulu kunye nengxolo engaqhelekanga;

4. Uburhabaxa bomphezulu womsebenzi bunzima kakhulu, kwaye umphezulu womsebenzi unamabala aqaqambileyo aneempawu zerhengqa okanye iiripples;

5. Xa ukugaya iinxalenye zentsimbi kunye nabasiki be-carbide milling, inkungu enkulu yomlilo idla ngokubhabha;

6. Iingxenye zetsimbi zokugaya kunye ne-high-speed steel milling cutters, ukuba zipholile nge-oil lubrication, ziya kuvelisa umsi omningi.

Xa i-milling cutter idluliswa, kufuneka imiswe ngexesha ukujonga ukunxiba kwe-milling cutter. Ukuba ukunxiba kuncinci, i-cut cut ingasetyenziselwa ukugaya i-cut cut kwaye iphinde isetyenziswe. Ukuba isinxibo sinzima, kufuneka silolwe ukunqanda ukuba isixhobo sokusila singagqithisi. Nxiba