IS 1878-2: Test chart for general purpose parallel lathes, Part 2: Lathes with swing over bed over uo to 800 mm and up to 1600 mm

17 Pages·1992·1.4 MB·English

by  Bureau of Indian Standards

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education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.
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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 1878-2 (1992): Test chart for general purpose parallel
lathes, Part 2: Lathes with swing over bed over uo to 800
mm and up to 1600 mm [PGD 3: Machine Tools]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
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“Knowledge is such a treasure which cannot be stolen”

IS 1878 ( Part 2 ) : 1992

Indian Standard
TEST CHART FOR GENERAL PURPOSE
PARALLEL LATHES
PART 2 LATHES WITH SWING OVER BED OVER 800 mm AND UP TO 1 600 mm
Second Revision )
(
UDC 621-941-22 : 620.1 ( 084.3)

@ BIS 1992
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
December 1992 Price Group 5
enihcaM slooT scisaB and raludoM Units lanoitceS ,eettimmoC EP 03
FOREWORD
sihT naidnI dradnatS ( traP 2 ) ( dnoceS noisiveR ) was detpoda yb eht uaeruB fo naidnI
Standards, retfa eht tfard dezilanif yb eht enihcaM slooT scisaB and raludoM Units lanoitceS
eettimmoC had neeb devorppa yb eht noitcudorP gnireenignE noisiviD .licnuoC
sihT standard was tsrif dehsilbup ni 1971. tneuqesnoC nopu noisiver fo 0SI 1708 : 1989 -tpeccA‘
ecna snoitidnoc rof lareneg esoprup lellarap sehtal - gnitseT fo eht ,’ycarucca eht eettimmoc
elbisnopser rof noitalumrof fo this standard dediced ot esiver eht emas ot gnirb ti ni enil htiw
0SI 1708 : 1989.
SI 1878 ( Part 2 ) : 1992
Indian Standard
TEST CHART FOR GENERAL PURPOSE
PARALLEL LATHES
PART 2 LATHES WITH SWING OVER BED OVER 800 mm AND PU OT 1600 mm
( Second Revision )
1 EPOCS tuc = 0.1 ,mm feed = 0.1 mm per noitulover )
dna ton htiw gnihguor stuc hcihw are elbail
sihT dradnats ( Part 2 ) sebircsed htob -irtemoeg
ot etareneg elbaicerppa gnittuc forces.
lac dna lacitcarp tests no lareneg esoprup lellarap
sehtal htiw gniws revo deb revo 800 mm dna pu 3.5 nehW gnihsilbatse the ecnarelot for a
ot 1 600 mm dna the gnidnopserroc elbissimrep gnirusaem egnar tnereffid morf that detacidni ni
,snoitaived htiw ecnerefer ot SI 2063 : 1988 siht dradnats ( see 2.311 of SI 2063 : 1988 ), ti
ecnatpeccA‘ code for enihcam :sloot -emoeG llahs eb nekat otni noitaredisnoc that the -inim
cirt ycarucca of senihcam gnitarepo rednu mum ecnarelot si 0.01 .mm roF yna lanoitroporp
daol-on or gnihsinif snoitidnoc (first revision )‘. ,eulav the detaluclac eulav llahs eb dednuor off
ot the tseraen 0.005 .mm revewoH the tsael
tI slaed ylno htiw the noitacifirev of ycarucca
tnuoc of lla gnirusaem stnemurtsni deen ton eb
dna seilppa rehtien ot the gnitset of the gninnur
renif naht 0.01 .mm
of the enihcam ( ,snoitarbiv lamronba ,sesion
pils-kcits noitom of ,stnenopmoc etc ) ron ot 3.6 revenehW etanretla sdohtem of gnitset are
the enihcam scitsiretcarahc ( speeds, feeds, etc ) ,detseggus the eciohc of lautca dohtem of gnitset
hcihw llahs yllareneg eb checked erofeb gnitset si tfel ot the .rerutcafunam
the .ycarucca
3.7 roF the esoprup of siht ,dradnats suoirav
2 SECNEREFER sdohtem of gnisserpxe elbissimrep noitaived are
,deyolpme each gnivah a ralucitrap epyt of
SI 2063 : 1988 ecnatpeccA‘ code for gnitset .noitacilppa ehT sdohtem deyolpme are as
enihcam sloot : cirtemoeG ycarucca of senihcam :swollof
gnitarepo rednu daol-on or gnihsinif snoitidnoc
OOO/OOO for snoitaived of ytiralucidneprep hcihw
tsrif( revision )‘, si yrassecen tcnujda ot siht are soitar
.dradnats
000 for yna htgnel of 000 for snoitaived of
3 YRANIMILERP SKRAMER ssenthgiarts dna ;msilellarap siht noisserpxe

si desu ni fact for lacol elbissimrep -aived
3.1 7’0 ylppa these tests, ecnerefer llahs eb edam

,snoit the gnirusaem htgnel gnieb yrotagilbo
ot 1s 2063 : 1988 yhaicepse for noitallatsni of the
enihcam erofeb ,gnitset gnimraw pu of seldnips OGG for 000 for snoitaived of ssenthgiarts dna
dna other gnivom parts, noitpircsed of -rusaem ;msilellarap siht noisserpxe s‘i desu ot
gni sdohtem dna dednemmocer ycarucca of dnemmocer a gnirusaem htgnel tub ni siht
gnitset .tnempiuqe case the ytilanoitroporp elur semoc otni
noitarepo fi the gnirusaem htgnel sreffid
3.2 eh’l ecneuqes ni hcihw the lacirtemoeg tests
morf those .detacidni
are nevig si detaler ot the seilbmessa-bus of the
enihcam dna does ton enifed the lacitcarp order 4 GNITSET STNEMURTSNI
of .gnitset nI order ot ekam gnikcehc or
gnitnuom of stnemurtsni ,reisae tests yam eb ehT gnitset stnemurtsni llahs eb of the devorppa
deirrac tuc ni yna tneinevnoc .ecneuqes epyt dna llahs 3b detarbilac at a dezingocer
erutarepmet gnimrofnoc ot the tnaveler naidnI
3.3 nehW gnitcepsni a ,enihcam ti si yrassecen .sdradnatS
ot yrrac tuo lla the tests debircsed ni siht
,dradnats gnitpecxe those tests hcihw yam eb 5 YCARUCCA 5TNEMERIUQER
dettimo ni lautum tnemeerga neewteb the reyub ehT test ot eb deiirac ,tuo the stnemurtsni
dna the .rerutcafunam ,deriuqer the mumixam elbissimrep snoitaived
3.4 lacitcarP tests llahs eb edam ylno dna the rennam of gniyrrac tuo the tests llahs
htiw gnihsinif stuc ( for ,ecnatsni depth of eb as deliated ni the test chart.
1
TEST CHART FOR GENERAL PURPOSE PARALLEL LATHES - LATHES WITH SWING OVER BED
t;l
OVER 800 mm AND UP TO 3 600 mm
;;;
2
Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C ustomer . . . . . . . . . . . . . . . . . . . . . . . . . ..... .. ....................... ~. ............ -
Machine ,.....................,.........,............ Order No. . . . . . . . . . . . . . . . ..*........................... Date . . . . . . . . . ..I............... Inspector . . . . . . . . . . . . . . . . . . . . . . . . 8
I Geometrical Tests N
V
. .
llA snoisnemid ni .sertemillim
5;
Figure Object _ Measuring Reference to 1s 2063 : 1988 and/or Permissible Deviations Actual g
I% Instruments Instructions for Testing Error
I
)1( )2( 13( (4) I (5) (6) I (7)
DEB-A
-
noitacifireV fo -level noisicerP a) 3.11, 3.21, 5.212.21 dna DC Q 500
gnil fo syawedils ,slevei 5.212.22 0,015 xevnoc( )
thgiarts ,egde . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
lacitpo ro 500 < DC< 1000
rehto sdohtem 0.03 ( xevnoc )
a) lanidutignoL ekaM eht tnemerusaem at a lacoL ecnarelot :
:noitcerid rebmun fo snoitisop yllauqe 0.01 rof yna htgnel
decaps gnola eht htgnel fo eht fo 250 ( ees xennA A )
ssenthgiartS fo deb
syawedils ni eht ehT slevel may eb decalp no . . . . . . . . . . . . . . . . . . . . . . . . . . . .
lacitrev enalp eht esrevsnart .edils DC > 1000 roF hcae
nehW eht syawedils era ton 1 000 esaercni ni
latnoziroh esu a thgiarts egde ecnatsid neewteb
sa denoitnem ni 5.212.21, sertnec dnoyeb 1000
erugiF 12 dda ot eht -serroc
gnidnop gnidecerp
:ecnarelot 0.02

acoL I :ecnarelot
0.02 rof yna htgnel
fo 500 ees( xennA A )
)b esrevsnarT -cerid noisicerP )b 5.412.7 noitairaV fo :level
:noit syawedilS slevel ecalP a level ylesrevsnart no 0.04/l 000
llahs eb ni eht eht syawedils dna take
emas enalp stnemerusaem at a rebmun fo
snoitisop yllauqe decaps
gnola eht htgnel fo eht
syawedils
ehT noitairav fo level -rusaem
de at yna noitisop llahs ton
deecxe eht elbissimrep
noitaived
DC = ecnatsiD neewteb ;sertnec ,D = mumixaM elbissimrep retemaid evo eht deb ( taht ,si gniws revo deb )

erugiF tcejbO gnirusaeM ecnerefeR ot SI 2063 : 1988 ro/dna elbissimreP snoitaiveD leg f
stnemurtsnI snoitcurtsnI rof gnitseT
%
00
(1) (2) (3) (4) (5) (6) (7) ;
8
C - DAEH KCOTS ELDNIPS z
- - t4
I \a tnemerusaeM fo Dial eguag a) 0.015 V. .
’ cidoirep laixa dna :lbissop
PidS a laiceps
-& ecived 8
F*
>a
5.62, 5.621.2, 5.622.2 dna 5.632
)b tnemerusaeM fo
)b 0.02 gnidulcni
gnimmac fo ecaf
fI yrassecen eht eulav fo laixa cidoirep laixa
etalp gnitser
ecafrus ecrof F,* ot eb deilppa rof eht pils
stset (a) dna ,)b( llahs eb
deificeps yb eht rerutcafunam
tnemerusaeM fo Dial eguag 5.612.2 dna 5.621.2 0.015
tuonur fo eldnips fI ,yrassecen eht eulav fo ecrof
-& eson gnirtnec F ot eb deilppa llahs eb -iceps
F+ eveels deif yb eht rerutcafunam
nI eht esac fo a derepat eldnips
eson xif eht laid eguag -neprep
ralucid ot eht gnitareneg enil

fo eht repat

6 tnemerusaeM fo -nur Dial eguag 5.612.3
tuo fo sixa fo :ertnec dna tset
lerdnam
a) raen eht eldnips a) 0.015
eson fo eht
gnisuoh
)b at a ecnatsid morf )b 0.05 rof a -rusaem
eht eldnips eson gni htgnel fo 500
lauqe ot D,/2
ro ton erom naht
500
* F = tnatsnoC erusserp no eldnips ot etanimile laixa gniraeb dne .yalP