Ingcamango yokugrumba umngxuma onzulu:

Kushishino lokwenziwa koomatshini, imingxuma yesilinda enobunzulu bomngxuma ngaphezu kwamaxesha ali-10 ubukhulu bomngxuma ngokuqhelekileyo ibizwa ngokuba yimingxuma enzulu. Imingxunya enzulu idla ngokuhlulwa ibe ziindidi ezintathu: imingxuma enzulu ngokubanzi, imingxuma enzulu ephakathi kunye nemingxuma ekhethekileyo enzulu ngokomlinganiselo wobunzulu bokugqobhoza kububanzi bomngxuma (L/D).

I-1 L/D=10~20, ngumngxuma onzulu ngokubanzi. Ihlala isetyenziselwa ukugrumba i-twist ende kwi-drill press okanye i-lathe.
2 L/D=20~30, yeyomngxuma onzulu ophakathi. Isoloko isetyenzwa kwilathe.
3 L/D=30~100, eyeyobunzulu obukhethekileyo bomngxuma. Kufuneka kusetyenzwe kumatshini wokugaya umngxuma onzulu okanye izixhobo ezikhethekileyo usebenzisa i-drill drill enzulu.

Ubunzima bokwenziwa komngxuma onzulu:

1. Imeko yokusika ayinakubonwa ngokuthe ngqo. Ukususwa kwetshiphu yeJaji kunye ne-drill inxiba kuphela ngesandi, ukubukela ukusika, ukujonga umthwalo womatshini, uxinzelelo lweoyile kunye nezinye iiparamitha.
2. Ukusika ubushushu abudluliswa lula.
3. Ukususwa kwe-Chip kunzima, kwaye i-drill bit iya konakaliswa ukuba idibana nokuvalwa kokusika.
4. Ngenxa yentonga ye-drill ende, ukuqina okungahambi kakuhle, kunye nokunyakaza okulula, i-axis yomngxuma iya kuchithwa, eya kuchaphazela ukuchaneka komatshini kunye nokusebenza kakuhle kwemveliso.

Nika ingqalelo kwingxaki yokusetyenzwa kweoyile ye-crankshaft:

1 Ngokuqhelekileyo, ubude be-drill flat-bottom kunye nomngxuma wesikhokelo zisondele kakhulu. Xa utshintsha isixhobo, umqhubi kufuneka asibone ngokucacileyo, kungenjalo isiganeko sokungqubana kwesixhobo sinokwenzeka.
2 Xa i-chamfer drill icubungula i-chamfering yomngxuma, ubungakanani be-chamfer yomngxuma buya kwahluka, ngokuqhelekileyo emva kokuba isixhobo esitsha sitshintshiwe, isixhobo sigugile ngokubanzi, (isixhobo sinokulungiswa ngokuguqula iiparamitha. kwinkqubo) .
I-3 Ukuncipha kwesantya sokuhamba kwe-MQL kuya kubangela ukuba i-drill ye-hole drill iphulwe kwaye imveliso ikhutshwe (olu hlobo lwengxaki lunokufumaneka ekuhlolweni kwendawo, kunye nokusetyenziswa kwansuku zonke kweoli nako kunokufunyanwa).
4 Phambi kokufaka i-drill ebukhali yomngxuma onzulu, khangela ukuba umngxuma wokupholisa wangaphakathi uvalekile.