Page 418 - Content.pmd

JÚ 4 _ô Nd¡u RϧLs (Merits of a 4 Jaw JÚ 3þ_ô Nd¡u Ïû\TôÓLs
chuck)
De-merits of a 3 Jaw chuck:-
TWYXô] A[®p ùWÏXo (regular shape) Nd (chuck/Lq®) úRnUô]m AûPV AûPVj
(JÝeLô]) Utßm JÝeLt\ Y¥Y (irregular
ÕpXõVm (accuracy) Ïû\kÕ ùLôiúP
shapes) T¦l ùTôÚhLû[ ©¥dL Ø¥Ùm.
úTô¡\Õ.
T¦l ùTôÚû[ concentric BLÜm ApXÕ
Run outþIf N¬ùNnV Ø¥VôÕ.
eccentric BLÜm set ùNnV Ø¥Ùm.
Round Utßm Hexagonal (YhP Y¥Ym /
ϱl©PjRdL A[®tÏl ©¥Uô] Nd§ EÚû[ Y¥Ym Utßm AßeúLôQ Y¥Ym)
(gripping power) CÚd¡\Õ. G]úY Heavy
UhÓúU ©¥dL Ø¥Ùm.
cutsþEm ùLôÓdL Ø¥Ùm.
ÕpXõVUô] setting ApXÕ CÚd¡u\
Internal Utßm external T¦LÞdÏ JúW _ôv
®hPj§tÏ (diameterþdÏ) úRûYl ThPôp
(Jaws) úTôÕm reversible (§Úl©Ùm self/centering chuckþIl TVuTÓjR Ø¥VôÕ.
TVuTÓjRXôm)
JÚ Nd¡u (chuckþu) A[Üd ϱlÀÓ
End face of the jobþp úYûXûV EP]¥VôLf
(specification)
ùNnV Ø¥Ùm. Nd (chuck) úRnYRôp ÕpXõVd
Ïû\TôÓ HtTPôÕ. JÚ NdþId (chuck) vùT³@ûTl (specify)
ùNnÙm úTôÕ ¸rdLiP ®YWeLû[j RW
JÚ 4 Jaw chuckþu De-merits (Ïû\ TôÓLs)
úYiÓm.
T¦lùTôÚhLû[ R²VôL ùNh ùNnV
þ Nd¡u YûL (type of chuck)
úYiÓm. ¡¬l©e TYo (gripping power)
(©¥Uô] Nd§) A§LUôL CÚlTRôp, þ Nd¡u ùLôs§\u (capacity of chuck)
Öi¦V T¦l ùTôÚhLû[ (fine work) setting þ EPtTϧ«u ®hPm (diameter of the body)
ùNnÙm úTôÕ G°§p úNRm AûPkÕ
þ EPtTϧ«u ALXm (width of the body)
(damaged) ®PdáÓm.
þ spindle nose EPu mounting TiÔm Øû\
JÚ 3 _ô Nd¡u RϧLs(Merits of a 3 Jaw
(method).
chuck)
ERôWQm (Example):-
T¦l ùTôÚû[ G°RôL ®ûWYôL set
ùNnÕ true ùNnVXôm. 3þ_ô ù^p@l ùNiP¬e Nd (3 jaw self-
centering chuck)
TWYXô] A[®tÏ £Xõih¬dLp (cylidrical/
EÚû[/YhPY¥Y) Utßm AßeúLôQl ©¥Uô] Nd§ (gripping capacity) 450 ª.Á
T¦l ùTôÚhLû[l (hexagonal work) ©¥dL EPtTϧ«u ®hPm (diameter of the body) 500
Ø¥Ùm. (can be held)
ª.Á
Internal Utßm external RôûPLs (jaws)
EPtTϧ«u ALXm (width of the body) 125 ª.Á
R²jR²úV ¡ûPd¡u\].
Tapered (NônYô]) ApXÕ UûW«hP
(threaded) Øû\«p mounting

NdûL UôhÓm ùTôÝÕ UûW«û] ÑjRm ùNnÙm Øû\ (Method of cleaning
the thread of the chuck mounting)
úSôdLeLs: ClTôPj§u Ø¥®p ¿eLs ùT\ úYi¥V A±Ü §\uLs
• UûW«û] ÑjRlTÓjÕm LÚ®«u Tn]Lû[ áßRp.

Nd Utßm v©i¥Xõu CûQÙm NdLô]Õ N¬Vô] úSo RuûUÙPu KPôÕ.
TôLeL°u Es[ UûW«û] ÑjRm ùNnV v©i¥Xõu N¬Ü ApXÕ Nd¡p Es[
§Wh¡Ç]Wô]Õ TVuTÓ¡\Õ. Ut\T¥ UûW«û] úNRlTÓjÕm.
UûW«u úUt×\eL°p çÑdLs CÚkRôp
¸rdLiP ®û[®û] HtTÓjÕm.

£_õ & Gm: @©hPo (NSQF - Revised 2022) R.T. for Ex.1.7.99 397