Page 62 - Plumber- TT - 1st Year - Tamil

©pXo ¥¬pXõe ùUμu (The pillar drilling
machine) (Fig 3)
CÕ ùNu³¥q ¥¬pXõe ùUμ²p CÚkÕ
JÚ úUmThP Y¥Ym BÏm CkR YûL
¥¬pXõe ùUμuLs RûW«p AûUdLl
ThÓ A§L Nd§ YônkR ªuNôW
úUôhPôoL[ôp CVdLlTÓ¡u\].
CûYLÞm CXÏWLl T¦LÞdÏl TVu
TÓ¡u\]. ©pXo ¥¬pXõe ùUμuLs
ùYqúYß A[ÜL°p ¡ûPd¡u\].
ùT¬V ùUμuL°p T¦lùTôÚû[
AûUlTRtÏ úUû_ûV EVojÕYRtÏ JÚ
úWd Aih ©²Vu ùUdLô²Nm (rack and
pinion mechanism) RWlThÓs[Õ.
¥¬pûXl ©¥dÏm LÚ®Ls (Drill - Holding
devices)
ùTôÚhLs Õû[«ÓYRtÏ, ¥¬pûX (drill)
ùUμuL°p ÕpXõVUôLÜm Utßm
EߧVôLÜm ©¥dL úYi¥VÕ AY£Vm.
ùTôÕYô] ¥¬p úaôp¥e LÚ®L[ôY]
¥¬p NdÏLs (drill chucks) vÄqLs (sleeves)
Utßm ^ôdùLhÓLs (sockets) BÏm.
¥¬p NdÏ (drill chuck)
úSo RiÓ ¥¬pLs (straight shank drills) ¥¬p
Lq®L°p (drill chucks) ©¥dLlTÓ¡u\].
¥¬pûXl ùTôÚjR Utßm ALt\ NdÏL°p
©²Vu Utßm ¸ (pinion and key) ApXÕ JÚ
SopÓ ¬e (knurled ring) RWlTh¥ÚdÏm.
¥¬p NdÏLs ùUμu v©i¥Xõp
ùTôÚjRlThÓs[ JÚ BoTo (arbor) êXm
©¥dLlTÓ¡u\]. (Fig 4)
42 ©[m©e þ ©[mTo (NSQF - Revised 2022) - R.T. for Ex. 1.3.13
N¬Yô] vÄqLs Utßm ^ôdùLhLs
(Taper sleeves and sockets) (Fig 4)
úPlTo ú`ed ¥¬pLs (Taper shank drills) JÚ
úUôov úPlTûW (morse taper) ùLôi¥ÚdÏm.
vÄqv Utßm ^ôdùLhLÞm CúR N¬ûYd
ùLôi¥ÚdÏm. CR]ôp ¥¬pXõu úPlTo
ú`ed B]Õ ©¥dLlTÓm úTôÕ JÚ SpX
Bl©u úYûX ùNnVlTÓ¡u\Õ.
¡ûPd¡\Õ. CkRd LôWQjRôp úUôov
úPlToLs ÑVUôLl ©¥dÏm N¬ÜLs
Gu\ûZdLlTÓ¡\Õ.
¥¬pLs úUôov úPlT¬u ùYqúYß IkÕ
A[ÜL°p ¡ûPd¡u\]. CûYLs MT 1 to
MT 5 GiL°PlThÓs[]. (Fig 4)
¥¬pûX JÚ ^ôdùLh ApXÕ vÄ®p
ùTôÚjÕm úTôÕ úPed Tϧ (tang portion)
vXôh¥p N¬ B¡ CÚdL úYiÓm. (Fig 5)
CÕ ¥¬p ApXÕ vÄûY ùUμu
v©i¥Xõp CÚkÕ ALt\ ERÜm.
Fig 5
ùUμu v©i¥Xõp CÚkÕ ¥¬pLs
ApXÕ ^ôdùLh-I ALt\ JÚ ¥¬@lh (drift)
TVuTÓjRÜm. (Fig 6)
^ôdùLh/ApXÕ vÄ®p CÚkÕ
¥¬pûX ALtßm úTôÕ AÕ úUû_
ApXÕ T¦lùTôÚs ÁÕ ®ZôÕ
TôojÕd ùLôs[Üm. (Fig 7)
T¦lùTôÚû[l ©¥dÏm ETLWQeLs
(Work-holding devices)
T²lùTôÚs B]Õ ¥¬pÛPu úNokÕ
ÑZpYûRj RÓdL Õû[«PlTP úYi¥V
T¦lùTôÚs B]Õ N¬VôLl ©¥dLlTP
ApXÕ ¡[ôml TiQlTP úYiÓm.
N¬VôLl ©¥dLlTPôR T¦lùTôÚs
T¦×¬Ùm STÚdÏ BTjûR ®û[®lTúRôÓ
ÕpXõVd Ïû\TôÓûPV T¦lùTôÚû[
EÚYôdÏm Utßm ¥¬p EûPV LôWQUô¡
®Óm. N¬VôL ¥¬pXõe TiÔYRtÏl
TpúYß LÚ®Ls TVuTÓjRlTÓ¡u\].