DIN71671987尺寸,形状和平行度公差之间的关系

1、UDC621.753.14:744.44DEUTSCHENORMRelationshipbetweentolerancesofsize,form,andparallelismEnveloperequirementwithoutindividualindicationonthedrawingZusammenhangzwischenMaBtForm-undParallelitats-toleranzen；HullbedingungohneZeichnungseintragungThisstandarcDINISO1101,supersedesDIN7184ParInkeepingwithcurre

2、ntpracticeinstandardspublishedbytheInternationalOrganizationforStandard!,hasbeenusedthroughoutasthedecimalmarker*xela的epal-n仍匸00aqp-nolls-E6UOqnop40ssu-1ScopeandfieldofapplicationThespecificationsgiveninthisstandardwithregardtotherelationshipbetweentolerancesofsize,applytodrawingsinwhichnoreferencei

3、smadeinorclosetothedrawingtitleblocktotheirbeingancewithISO8015(orwithitspredecessor,DIN2300).ThepurposeofthisstandardistoclarifythecorrespondingspecificationspreviouslygiveninDI卜nationalstandardreferredtoinsubclause7*2ofISO8015(issuedasaDINISOStandardinJulythattheenveloperequirementforsinglefeature

4、sisthenormandthereforedoesnotneedtobesethedrawing.2EnveloperequirementwithoutindicationonthedrawingInthecaseofdrawingsbasedonDINStandardsontolerancesandfitsandwithnospecificationsrefereneetoISO8015),theenveloperequirement(seefigure1)shallapplyforallfeatureswithouindicatedonthedrawing.Thisenvelopereq

5、uirementcorrespondstotheenveloperequirementspecifiedinsubclause6.1ofIthat,forasinglefeature,Le.acylindricaisurfaceorafeatureestablishedbytwoparallelplanesurfperfectformatmaximummaterialsizeofthefeatureshallnotbeviolated.Thatmeansthatthedeviationsofformandthedeviationsfromparallelismofopposingplanesu

6、rfathedimensionaltolerance,unlessothermorespecifictolerancesareindicatedforthefeaturescothesymbolsspecifiedinIS01101,thevaluesofthesetolerancesbeinggreaterthanthatofthedimthefeature.IndicationondrawingMeaning020绻02OfO019,9020,0019f9Inthecaseofshaffeatureshallnotecallyidealform(cylmateriallimitofsi2m

7、ent),norshallthethantheminimumnranypoint.Thecylinderatitilimitofsizeisembgauge.020,0020,0NurzurInfatiogFF(j|nformationcllyF944011K3.202OJInthecaseofholefeatureshallnotbemetricallyidealfcminimummateriallirequirement),norsiPage2DIN7167StandardsreferredtoDimensionalandgeometricaltolerances；tolerancingp

8、rinciplesDIN7184Part1*)Geometricaltolerances；concepts,indicationsondrawingsISO1101Technicaldrawings;geometricaltolerancing,tolerancingofform,orientation,locationgeneralities,definitions,symbols,indicationsondrawingsTechnicaldrawings；fundamentaltolerancingprincipleDIN2300*)ISO8015PreviouseditionsDIN7

9、182Part4:03.59;DIN7184Part1:0572.AmendmentsThefollowingamendmentshavebeenmadeincomparisonwiththeMay1972editionofDIN7184Part1.Specificationswithregardtotherelationshipbetweentolerancesofsizefformandpositionhavebeenrestrifeatures.AllotherspecificationsofDIN7184Part1thatreproducespecificationsgiveninIS

10、O1101-1984hincludedintheequivalentGermanversionofthatstandard,DINISOExplanatorynotesDtN7184Part1,thoughlargelybasedonISO/R1101/1,deviatedfromthatRecommendationinitsineludingasftheeffectthatdimensionaltolerancesalsocontrolthedeviationsofformandposition(exceptforthedsymmetry,coaxialityandrun-out,andex

11、ceptwherereferenceismadetoparticularspecifications).Owingtoitsdifferentinterpretationindifferentcountries,therelationshipbetweentolerancesofsize,forman(inneedofclarification.ThatpromptedthepublicationofISO8015*1985,inwhichtheprincipleofindependerasafundamentaltolerancingprinciple.Nevertheless,theenv

12、eloperequirementwithoutindicationonthedrawingcontinuestobeapplied,whichisthepublicationofthepresentstandard,DIN7167.ItdeviatesfromthespecificationspreviouslygiveninDIN7184Part1asregardstherelationshipbetweenthed(rectangularityandthedimensionaltolerances.Uptonow,therulewasthatdeviationsfromrectangula

13、rityshoulidimensionaltolerances,measuredintherectangularsystemofcoordinates.Inindustrialpractice,however,wasandishardlyeverobserved,sincethereisseldomafunctionalrequirementforit.MuchthesamestatementismadeinDIN7168Part2,However,whenthestandardisnextrevised,tobringitinicorrespondinginternationalstanda

14、rdongeneralgeometricaltolerances(ISO2768Part2,atpresentatthesgeneraltoleranceswillbespecifiedforrectangularityindependentlyofthedimensionaltolerances.ThespecificationthatthedimensionaltolerancesalsoincludethedevlationsfromrectangularitywasadepaspecificationsofISO1101thatwasonlyvalidintheFederalRepub

15、licofGermany.IthasnowbeenwithdrawcontradictstheprincipleofindependencyassetoutinISO8015.AccordingtothedefinitionoftheenveloperISO8015,thedimensionaltolerancecanonlycontroltheformdeviationsofafeature,thegeometryofwhich(describedbyasingleindicationonthedrawing(cylinder,ortwoparallelplanesurfaces).Only

16、thosefeatureswhdefinitioncanbecheckedinrespectoftheirmaintainingthemaximummateriallimitsofsizewiththeaidofiaccordancewithTaylofsprinciple(seeDIN7150Part2).Asarule,noindicationsareenteredondrawingswhichhavebeenorwillbepreparedonthebasisoftherelatiortolerancesofsize,formandparallelismaspresentedinthisstandard.However,toavoidmis