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©pXo h¬pXõe ùUμu (The pillar drilling CÕ ùNu³¥q h¬pXõe ùUμ²p CÚkÕ
machine) (Fig 3) JÚ úUmThP Y¥Ym BÏm CkR YûL
h¬pXõe ùUμuLs RûW«p AûUdLl
ThÓ A§L Nd§ YônkR ªuNôW
úUôhPôoL[ôp CVdLlTÓ¡u\].
CûYLÞm CXÏWLl T¦LÞdÏl TVu
TÓ¡u\]. ©pXo h¬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.
T¦lùTôÚû[l ©¥dÏm ETLWQeLs (Work-holding devices)
úSôdLeLs: ClTôPj§u Ø¥®p ¿eLs ùT\ úYi¥V A±Ü §\uLs
• ùYôod úaôp¥e ¥ûYvL°u (work-holding device) úSôdLm Tt±d A±Rp
• T¦lùTôÚû[l ©¥dLl TVuTÓm LÚ®L°u ùTVo A±Rp
• ùYôodþúaôp¥e ¥ûYvû[l TVuTÓjÕm úTôÕ LûPl©¥dL úYi¥V
Øuù]fN¬dûLLû[ (precautions) A±Rp.
T¦lùTôÚs B]Õ h¬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 h¬p EûPV LôWQUô¡
®Óm. N¬VôL h¬pXõe TiÔYRtÏl
TpúYß LÚ®Ls TVuTÓjRlTÓ¡u\].
ùUμu ûYv (The Machine vice)
Ïû\kR ÕpXõVm úTôÕm G²p
ùTÚmTôXô] Õû[«Óm T¦Ls JÚ T¦lùTôÚû[ UWjÕi¥u êXm
ùUμu ûY³p ©¥dLlTPXôm. £lúTôoh ùNnVXôm. (Fig 2)
T¦lùTôÚû[ FÓÚÜm úTôÕ, h¬p
¡[ômv Utßm úTôphÓLs (Clamps and
B]Õ, AûRÙm Rôi¥ ûY³às
bolts)
FÓÚYôUp CÚlTûR Eߧ ùNnÕd
ùLôs[Üm. CkR úSôdLj§tLôLl úTôph ùahLû[l ùTôÚjR h¬pXõe
T¦lùTôÚû[ EVoj§ ARtL¥«p CûQ ùUμu úUû_L°p ‘T’-«Xô] AûUl×Ls
ÕiÓL°u ÁÕ ûYjÕ T¦lùTôÚÞdÏm Es[Õ, ¡[ômlv Utßm úTôphÓLû[l
ûY£u A¥lTôLjÕdLm CûP«p JÚ TVuTÓj§l T¦lùTôÚû[ ªLÜm
CûPùY° EÚYôdLÜm (Fig 1) EߧVôLl ©¥dLXôm. (Fig 3) CkR Øû\ûVl
TVuTÓjÕmúTôÕ Ø¥kR YûW packing
B]Õ T¦lùTôÚÞdÏ NUUô] EVWj§p
CÚdL úYiÓm Utßm úTôph (bolt) B]Õ
£_õ & Gm: @©hPo (NSQF - Revised 2022) R.T. for Ex.1.2.38 117
