20638184 slotting machine
TRANSCRIPT
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SLOTTING MACHINE
PAVAN KUMAR
PRACHI GARG
PRANOTI SINGH
PRASHANSA
PRITI
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INTRODUCTION
The slotting mahine !as "e#elo$e" %& '()nel in *+,, m)h ea(lie( than a
sha$e( !as in#ente"-
The slotting mahine .alls )n"e( the atego(& o. (ei$(oating t&$e o.mahine tool simila( to a sha$e( o( a $lane(-
The ma/o( "i..e(ene %et!een a slotte( an" a sha$e( is that the (am hol"ing
the tool mo#es in a #e(tial a0is in a slotte( an" in a ho(i1ontal a0is in a
sha$e(-
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T2PES O3 SLOTTING MACHINE
PUNCHER SLOTTER The $)nhe( slotte( is a hea#& (igi"
mahine "esigne" .o( (emo#al o. la(ge
amo)nt o. metal .(om la(ge .o(gings o(
astings-
The $)nhe( slotte( (am is )s)all&
"(i#en %& a s$i(al $inion meshing !ith
the (a4 teeth )t on the )n"e(si"e o.
the (am-
The $inion is "(i#en %& a #a(ia%les$ee" (e#e(si%le elet(i moto( simila(
to that o. a $lane(-
The .ee" is also ont(olle" %&
elet(ial gea(s--
PRECISION SLOTTER
The $(eision slotte( is a lighte(
mahine an" is o$e(ate" at high
s$ee"s-
The mahine is "esigne" to ta4e
light )ts gi#ing a)(ate .inish-
Using s$eial /igs5 the mahine an
han"le a n)m%e( o. i"ential !o(4s
on a $(o")tion %asis-
The mahine is )se" .o( gene(al
$)($ose !o(4- The& a(e )s)all& .itte"
!ith 6hit!o(th 7)i4 (et)(n
mehanism-
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SLOTTER SI8E
The si1e o. a slotte( li4e that o. a sha$e( is s$ei.ie" %& the
ma0im)m length o. st(o4e o. the (am5 e0$(esse" in mm-
The si1e o. a gene(al $)($ose o( $(eision slotte( )s)all& (anges
.(om +, to 9,, mm-
To s$ei.& a slotte( o((etl& the "iamete( o. the ta%le in mm5
amo)nt o. (oss an" longit)"inal t(a#el o. the ta%le e0$(esse" in
mm5 n)m%e( o. s$ee"s an" .ee"s a#aila%le5 h-$ o. the moto(5 .loo(
s$ae (e7)i(e" et sho)l" also %e state"-
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CUTTING SPEED53EED AND DEPTH O3
CUT
CUTTING SPEED : The )tting s$ee" o. a slotte( is "e.ine" %& the (ate !ith !hih the
metal is (emo#e" ")(ing "o!n!a(" )tting st(o4e an" is e0$(esse"
in mete(s $e( min)te-
3EED :
It is the mo#ement o. the !o(4 $e( "o)%le st(o4e e0$(esse" in mm-
DEPTH O3 CUT:
It is the $e($en"i)la( "istane meas)(e" %et!een the mahine"
s)(.ae an" )nmahine" e0$(esse" in mm-
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SLOTTER TOOLS
A slotting mahine tool "i..e(s !i"el& .(om a sha$e( o( a $lanne(tool- a slotte( (emo#es metal ")(ing its #e(tial )tting st(o4e -
This hange" )tting on"ition $(esents a lot o. "i..e(ene inthe tool sha$e -In a slotte( the $(ess)(e ats along the length o.the tool -
The (a4e an" the lea(ane angle o. a slotte( tool a$$a(entl&loo4 "i..e(ent .(om a lathe o( a sha$e( tool as these angles a(e
"ete(mine" !ith (es$et to a #e(tial $lane (athe( than theho(i1ontal -
Slotte( tools a(e $(o#i"e" !ith to$ (a4e 5 .(ont lea(ane an"si"e lea(ane %)t no si"e (a4e is gi#en -
The nose o. the tool $(o/ets slightl& %e&on" the shan4 to
$(o#i"e lea(ane - The amo)nt o. (a4e angle gi#en is simila( tothat o. a sha$e( tool-
The slotte( tools a(e (o%)st in (oss;setion an" a(e
)s)all& o. .o(ge" t&$e< o. o)(se 5 %it t&$e tools .itte" in
hea#& ")t& tool hol"e(s a(e also )se"-
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SLOTTING MACHINE PARTS
'ASE
COLUMN OR PILLAR
SADDLE TA'LE AND CROSS SLIDE
ROTATING TA'LE
RAM AND TOOLHEAD ASSEM'L2
GEAR 'O=
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'ASE o( 'ED
The %ase is (igi"l& %)ilt to ta4e )$ all the
)tting .o(es an" enti(e loa" o. the mahine-
The to$ o. the %e" is a)(atel& .inishe" to
$(o#i"e g)i"e !a&s on !hih the sa""le is
mo)nte"- The g)i"e !a&s a(e $e($en"i)la(
to the ol)mn .ae-
COLUMN
The ol)mn is the #e(tial mem%e( !hih is
ast integ(al !ith the %ase an" ho)ses
"(i#ing mehanism- It is also alle" the $illa(-
The .(ont #e(tial .ae o. the ol)mn is
a)(atel& .inishe" .o( $(o#i"ing !a&s on
!hih the (am (ei$(oates-
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SADDLE
The sa""le is the enti(e )nit !hih is mo)nte" )$on the g)i"e !a&s an" ma& %e
mo#e" to!a(" o( a!a& .(om the ol)mn eithe( %& $o!e( o( man)al ont(ol to
s)$$l& longit)"inal .ee" to the !o(4-
The to$ .ae o. the sa""le is a)(atel& .inishe" to $(o#i"e g)i"e !a&s .o( the
(oss;sli"e- These g)i"e !a&s a(e $e($en"i)la( to the g)i"e !a&s on the
%ase-
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ROTAR2 TA'LE
The (ota(& ta%le is a i()la( ta%le !hih is mo)nte" on the to$ o. the (oss;sli"e-
The ta%le ma& %e (otate" %& (otating a !o(m !hih meshes !ith a !o(m gea(onnete" to the )n"e(si"e o. the ta%le - The (otation o. the ta%le ma& %e e..ete"
eithe( %& han" o( $o!e( - In some mahines the ta%le is g(a")ate" in "eg(ees that
ena%les the ta%le to %e (otate" .o( in"e0ing o( "i#i"ing the $e(i$he(& o. a /o% in
e7)al n)m%e( o. $a(ts- T;slots a(e )t on the ta%le .o( hol"ing the !o(4 %& "i..e(ent
lam$ing "e#ies - The (ota(& ta%le ena%les a i()la( o( onto)(e" s)(.ae to %e
gene(ate" on the !o(4 $iee- The ta%le has g(a"es on it-
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CROSS SLIDE
The (oss sli"e is mo)nte" )$on the g)i"e !a&s o. the sa""le an" ma&%e mo#e"
$a(allel to the .ae o. the ol)mn- The mo#ement o. the sli"e ma&%e ont(olle" %&
han" o( $o!e( to s)$$l& (oss;.ee"- The (otating !heel $(o#i"e" on the (oss;sli"e
an %e ont(olle" man)all& to g)i"e the (oss sli"es- The to$ one is alle" a ta%le-
An" the %ottom is alle" a (oss sli"e-
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RAM AND TOOLHEAD ASSEM'L2 The (am is the (ei$(oating mem%e( o. the mahine mo)nte" on the g)i"e
!a&s o. the ol)mn - It s)$$o(ts the tool at its %ottom en" on a tool hea" - Aslot is )t on the (am .o( hanging the $osition o. st(o4e - In some
mahines 5 s$eial t&$e o. tool;hol"e(s a(e $(o#i"e" to (elie#e the tool
")(ing its (et)(n st(o4e
STROKE AD>USTING 'LOCK is a"/)ste" %& hanging the %e#el ga)ges)sing a s7)a(e sha.t- This hel$s in a"/)sting the $osition o. the %e#elga)ges 5 a"/)sting the st(o4e-
TOOL HEAD OR TOOL POST hel$s in hol"ing the )tting tool-
CLUTCH LEVER is )se" .o( "isengaging the mahine .o( a !hile-
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RAM
TOOL POST STROKE ADJUSTING
BLOCK
CLUTCH LEVER
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ROTATING 6HEEL .o( a"/)sting the
(oss sli"e an" ta%le-
'ALANCING 6HEEL is )se" .o(
a"/)sting it to a stan"a("
om%ination-
BEVEL GAUGE
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GEAR 'O= The gea( %o0 has a gea( le#e( !hih is )se" .o( hanging the s$ee" o. the
mo#ement o. the (am-
Minim)m st(o4es $e( min)te a(e ?, !hile ma0im)m is *@,-
To (emo#e less mate(ial the mo#ement is ma"e .aste(-
3o( so.te( mate(ials li4e %(ass an" o$$e( the st(o4e mo#ement is $(e.e(a%l&
.aste( than one .o( the ha(" mate(ials-
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RAM DRIVE MECHANISM
A slotte( (emo#es metal ")(ing "o!n!a(" )tting st(o4e 5 onl&
!he(eas ")(ing )$!a(" (et)(n st(o4e no metal is (emo#e" - To(e")e the i"le (et)(n time 5 7)i4 (et)(n mehanism is ino($o(ate"in the mahine - The )s)al t&$es o. (am "(i#e mehanisms a(e:
6hit!o(th 7)i4 (et)(n mehanism
Va(ia%le s$ee" (e#e(si%le moto( "(i#e mehanism
H&"(a)li "(i#e mehanism
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6HIT6ORTH UICK RETURN MECHANISM
The 6hit!o(th 7)i4 (et)(n mehanism is most !i"el& )se" in a me"i)m si1e" slotting
mahine .o( "(i#ing the (am -
As sho!n in the .ig)(e 5 the %)ll;gea( loate" at the %a4 o. the mahine (eei#es its
motion .(om the $inion !hih is "(i#en %& an elet(i moto(-
The gea( is mo)nte" on a .i0e" $in o( h)% attahe" to the mahine .(ame - The "(i#ing
$late is mo)nte" on the sha.t !hih $asses th(o)gh the .i0e" h)% - The sha.t is $lae"
eent(iall& !ith (es$et to the %)ll;gea( ente( - A (an4 $in is mo)nte" on the .ae o.the %)ll;gea( !hih hol"s a sli"e %lo4 - The sli"e %lo4 is .itte" !ithin a (a"ial slot
$(o#i"e" at the inne(;si"e o. the "(i#ing $late - As the %)ll;gea( (otates5 the (an4 $in
an" the sli"e %lo4 (otate in a i()la( $ath 5 %)t o!ing to the eent(iit& o. the %)ll;gea(
an" the "(i#ing $late 5 the sli"e %lo4 (otates an" sli"es !ithin the slot o. the "(i#ing
$late im$a(ting it an" the sha.t (ota(& mo#ement - The (otation o. the "(i#ing $late is
t(ansmitte" to the "is !hih is attahe" to the en" o. the sha.t - A (a"ial T;slot is )t on
the .ae o. the "is - The $osition o. the $in .itte" !ithin the T;slot ma& %e alte(e" !ith
(es$et to the ente( o. the "is an" then lam$e" at one en" o. the onneting (o" is
attahe" to the (am %& a lam$ing %olt - The (otation o. the "is is on#e(te" into
(ei$(oating mo#ement o. the (am %& ollege (o" an" the $in eent(iall& mo)nte" on
the "is-
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*-RAM
@-CONNECTING
ROD CLAMPING
'OLT
?-PIVOT
B-COUNTER
'ALANCE 6EIGHT
-CRANK DISC
-DRIVING SHA3T
-'ULL GEAR
+-DRIVING PLATE
9-3I=ED HU'
*,-CRANK PIN
6ITH SLIDE 'LOCK
**-DRIVING PINION
*@ ? B
+
9
*,
**
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THE PRINCIPLE O3 UICK RETURN MECHANISM
-A an" ' a(e the .i0e" ente(s o. the %)ll;gea( an" the "(i#ing $late assho!n in the .ig)(e - The (an4 $in an" the sli"e %lo4 (otate in a i()la($ath at a onstant s$ee" 5 (otating the $late a%o)t ' - This a)ses the
"(i#ing "is attahe" to the sha.t to (otate - The $in on the "is (otates in ai()la( $ath a%o)t the .i0e" $oint ' - The length o. the (am is e7)al to t!iethe th(o! o. eent(iit& 5 !hih is e7)al to @ 0 ?'-
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3(om the "iag(am it is lea( that !hen the %lo4 is in the $osition C 5 the (am is at the
ma0im)m )$!a(" $osition o. the st(o4e an" !hen it is at D 5 the ma0im)m "o!n!a("
$osition o. the (am has %een (eahe" - Th)s i. the %)ll;gea( (otates in anti lo4!ise
"i(etion 5 !hen the %lo4 (otates th(o)gh an angle CAD 5 the "o!n!a(" )tting
st(o4e is $e(.o(me" 5 !he(eas !hen the %lo4 (otates th(o)gh an angle DAC 5 the
(et)(n st(o4e om$lete" - As the %lo4 (otates at a onstant s$ee" the (otation o. the
(an4 $in th(o)gh an angle CAD ")(ing the )tting st(o4e ta4es longe( time than
(otation th(o)gh an angle DAC ")(ing the (et)(n st(o4e - Th)s the 7)i4 (et)(n motion
is o%taine" - The )tting time an" (et)(n time is (elate" %& the .o(m)la:
CUTTING TIME F RETURN TIME CAD F DAC The length o. st(o4e o. the (am an %e #a(ie" %& alte(ing the $osition o. $in !ith
(es$et to the ente( '5 i-e- the ente( o. the "is-3)(the( the $osition o. the $in !ith
(es$et to the "is ente(5 g(eate( !ill %e the th(o! o. eent(iit& an" longe( !ill %e
the st(o4e length-
The $osition o. st(o4e o. the (am %e a"/)ste" %& (eleasing the n)t @ an" then %&
alte(ing the $osition o. the onneting (o" lam$ing %olt !ithin the slot $(o#i"e" onthe %o"& o. the (am-A.te( setting the $osition5 the n)t is tightene" again-
As the (am mo#es in a #e(tial a0is5the !eight o. the (am is o)nte(%alane" %& a
!eight B attahe" to the %a4 o. the %a4 o. the (am an" is $i#ote" at a $oint ?-This
(es)lts e#en an" /e(4 .(ee mo#ement o. the (am in )tting an" (et)(n st(o4e-
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ELECTRICAL AND H2DRAULIC DRIVE
La(ge mahines a(e "(i#en %& #a(ia%le #oltage (e#e(si%le moto( -
The h&"(a)li "(i#e is a"a$te" in mahines )se" in $(eision o( tool;(oom !o(4 - In ah&"(a)li "(i#e 5 the #i%(ation is minimi1e" (es)lting im$(o#e" s)(.ae .inish-
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3EED MECHANISM
In a slotte( 5 the .ee" is gi#en %& the ta%le - A slotting mahine ta%lema& ha#e th(ee t&$es o. .ee" mo#ements:
LONGITUDINAL CROSS CIRCULAR
I. the ta%le is .e" $e($en"i)la( to the ol)mn to!a(" o( a!a& .(omits .ae 5 the .ee" mo#ement is te(me" as longit)"inal-
I. the ta%le is .e" $a(allel to the .ae o. the ol)mn the .ee"mo#ement is te(me" as (oss-
Li4e a sha$e( o( a $lane( 5 the .ee" mo#ement o. a slotte( is s)$$lie"eithe( %& han" o( $o!e( - The han" .ee" is s)$$lie" %& (otating thein"i#i")al .ee" s(e!s-
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THE POWER FEED MECHANISM - A
am g(oo#e is )t on the .ae o. the %)ll
gea( in !hih a (olle( sli"es - As the %)ll
gea( (otates 5 the (olle( attahe" to a le#e(
.ollo!s the onto)( o. the am g(oo#e an"mo#es )$ an" "o!n onl& ")(ing a #e(&
small $a(t o. (e#ol)tion o. the %)ll gea( -
The am g(oo#e ma& %e so )t that the
mo#ement o. the le#e( !ill ta4e $lae onl&
at the %eginning o. the )tting st(o4e-
He(e the am g(oo#e )t on the %)ll gea( -
The (o4ing mo#ement o. the le#e( is
t(ansmitte" to the (athet an" $a!l
mehanism 5 so that the (athet mo#es in
one "i(etion onl& 5 ")(ing this sho(t $e(io"
o. time - The (athet !heel is mo)nte" on
a .ee" sha.t !hih ma& %e engage" !ith
(oss 5 longit)"inal o( (ota(& .ee" s(e!s
in"i#i")all& o( togethe( to im$a(t $o!e(
.ee" mo#ement to the ta%le-
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SLOTTER OPERATIONS
The o$e(ations $e(.o(me" in a slotte( a(e:
Mahining .lat s)(.ae
Mahining &lin"(ial s)(.ae
Mahining i((eg)la( s)(.ae an" am mahining Mahining slots 5 4e&!a&s an" g(oo#es
The !o(4 is hel" on a slotte( ta%le %& a #ise5 T;%olts an" lam$s o(
%& s$eial .i0t)(es- T;%olts an" lam$ a(e )se" .o( hol"ing most o.
the !o(4 on the ta%le - 3i0t)(es a(e )se" .o( hol"ing (e$etiti#e !o(4-
6ORK HOLDING DEVICES
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MACHINING 3LAT SUR3ACES
The e0te(nal an" inte(nal .lat s)(.aes ma& %e gene(ate" on a slotting mahine-
The !o(4 to %e mahine" is s)$$o(te" on $a(allel st(i$s so that the tool !ill ha#elea(ane !ith the ta%le !hen it is at the e0t(eme "o!n!a(" $osition o. the st(o4e-
The !o(4 is then lam$e" $(o$e(l& on the ta%le an" the $osition an" the length o. st(ois a"/)ste"-
A lea(ane o. @, to @mm is le.t %e.o(e the %eginning o. )tting st(o4e 5 so that the.ee"ing mo#ement ma& ta4e $lae ")(ing this i"eal $a(t o. the st(o4e-
The ta%le is lam$e" to $(e#ent an& longit)"inal o( (ota(& t(a#el an" the )t is sta(te".(om one en" o. the !o(4-
The (oss;.ee" is s)$$lie" at the %eginning o. eah )tting st(o4e an" the !o(4 isom$lete" %& )sing a (o)ghing an" a .inishing tool-
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6hile mahining an inte(nal s)(.ae 5 a hole is "(ille" in the !o(4 $iee
th(o)gh !hih the slotting tool ma& $ass ")(ing the .i(st )tting st(o4e-
A seon" s)(.ae $a(allel to the .i(st mahine" s)(.ae an %e om$lete"
!itho)t "ist)(%ing the setting %& sim$l& (otating the ta%le th(o)gh *+,
"eg(ee an" a"/)sting the $osition o. the sa""le - A s)(.ae $e($en"i)la( to
the .i(st mahine" s)(.ae ma& %e om$lete" %& (otating the ta%le %& 9,
"eg(ee an" a"/)sting the sa""le an" (oss;sli"e-
Ke&!a&s )tting tools a(e thinne( at the )tting e"ges - Ro)n" nose toolsa(e )se" .o( mahining .lat s)(.aes-
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MACHINING CIRCULAR SUR3ACES
The e0te(nal an" inte(nal s)(.ae o. a &lin"e( an also %e mahine" in aslotting mahine-
The !o(4 is $lae" ent(all& on the (ota(& ta%le an" $a4ing $iees an"lam$s a(e to hol" the !o(4 se)(el& on the ta%le-
The tool is set (a"iall& on the !o(4 an" neessa(& a"/)stments o. themahine an" the tool a(e ma"e-
The sa""le is lam$e" in its $oisition an" the mahine is sta(te"-6hihmahining 5the .ee"ing is "one %& the (ota(& ta%le ta%le .ee" s(e! !hih
(otates the ta%le th(o)gh a small a( at the %eginning o. eah )tting st(o4e-
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MACHINING IRREGULAR SUR3ACES OR
CAMS
The !o(4 is set on the ta%le an" neessa(& a"/)stments o. the tool
an" the mahine a(e ma"e-'& om%ining (oss5 longit)"inal an"
(ota(& .ee" mo#ements o. the ta%le an& onto)(e" s)(.ae an %emahine" on a !o(4$iee-
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MACHINING AND GROOVES OR
KE26A2S
Inte(nal an" e0te(nal g(oo#es a(e )t #e(& on#enientl& on a slottingmahine-
A slotte( is s$eiall& inten"e" .o( )tting inte(nal g(oo#es !hih a(e "i..i)lt
to $(o")e in othe( mahines-
E0te(nal o( inte(nal gea( teeth an also %e mahine" in a slotte( %& )ttinge7)all& s$ae" g(oo#es on the $e(i$he(& o. the !o(4 -
The in"e0ing o( "i#i"ing the $e(i$he(& o. the !o(4 is "one %& theg(a")ations on the (ota(& ta%le-