形位公差中英文对照

1、设计手册形位公差符号对应英Straightness直线度- a condition where an element of a surface or axis设计手册形位公差符号对应英Straightness直线度- a condition where an element of a surface or axisisastraightFlatness平面度istheconditionofasurface havingallelementsin Roundness 圆度- describes the condition on a surface of (cylinder,cone, spher

2、e)where alls ofthe ersected byCylindricity圆柱度- describes a condition of a surface of revolution whichallsofasurfaceareequidistantfromacommonProfile of a Line 线轮廓度 - is the condition permitting a amount of profile variation, ether unilaterally or bilaterally, along a elementofaProfile of a Surface面轮-

3、 is the condition permitting a amountofprofilevariation,etherunilaterallyorbilaterally,onaAll Around Symbol全周符号- olerance s allaroundtheAngularity倾斜度- is the condition of a surface, axis, or whichisataspecifiedanglefromadatumplaneorPendicularity垂直度- is the condition of a surface, axis, or whichis90d

4、eg.FromadatumplaneoradatumParallelism- is the condition of a surface, line, or axis, which allsfromadatumplaneorition Tolerance位置度- defines a ithin which the axis Parallelism- is the condition of a surface, line, or axis, which allsfromadatumplaneorition Tolerance位置度- defines a ithin which the axis

5、laneofafeatureispermittedtovaryfromtrue(theoreticallyConcentricity 同轴度 - describes a condition in which two or features,inanycombination,haveacommonSymmetry对称度- is a condition in which a feature (or features) symmetrically edaboutthelaneofadatumRunout圆跳动- is the ite deviation from the desired form o

6、f partsurfaceofrevolutionthroughonfullion(360deg)ofthepartadatumTotal Runout 全跳动 - is the simultaneous ite control of elementsofasurfaceatallcircularandprofileitionsaspartisedthroughumMaterial Condition (MMC) 最大实体t ofapartfeaturewhereinitcontainsumamountmaterial he ed limits of t is: minimum hole si

7、ze um shaft Least Material Condition (LMC)最小实体要求- st of a part feature of size wherein it contains the least (minimum) of material, les, largest hole size and smallest shaft size. It iteummaterialRegardless Of Feature Size (RFS) - the condition where the tolerance form,runoutorlocationmustbemetirres

8、pectiveofwheretheswithinitssizeProjectedTolerance Zone延伸公iteummaterialRegardless Of Feature Size (RFS) - the condition where the tolerance form,runoutorlocationmustbemetirrespectiveofwheretheswithinitssizeProjectedTolerance Zone延伸公差带s toa hole inwhich a stud, screw, etc., is to be inserted. It contr

9、ols the endicularity of hole to the extent of the projection from the hole and as it relates to mating part clearance. The projected tolerance zone extends above surface of the part to the functional length of n, stud, and relativetoitsassemblywiththematingTangentPlane相切面indicatingatangentplaneissho

10、wn.TheishefeaturecontrolframefollowingtheedFree e 状态变形 - is a term used to distortionofapartafterremovalofdduringDiameter直径- indicates a circular feature when used on the field of drawing or t the tolerance is diametrical when used in featurecontrolused to describe the exact size, 基本尺寸ion location o

11、f feature. basic is ted feature control frame . exactinReference参考尺寸a usuallywithoutused for information es only. It does ern production inspection operations. (Auxiliary inDatum Feature 参考特征 - is the actual feature used establishaOrigin尺寸源- tused for information es only. It does ern production insp

12、ection operations. (Auxiliary inDatum Feature 参考特征 - is the actual feature used establishaOrigin尺寸源- t the originates the plane established by the shorter surface and al limits totheotherFeature Control Frame公差控制框- is a rectangular box containing geometric characteristics symbol, theform,runoutorloc

13、ationtolerance.Ifsary,datummodifiersapplicabletothefeatureorthedatumsarealsoConicalr-isusedtoindicaterforconicalrs.ThisisalwaysshownwiththeverticallegtotheSlope坡度- is used to indicate slope for flat rs. This symbol alwaysshownwiththeverticallegtotheCounterbore/Spotface 沉孔 - is used to a counterbore

14、or spotface. The symbol precedes the the counterbore spotface,withnoCountersink - is used to indicate countersink. The precedesthesofthecountersinkwithnoDepth/Deep深度- is used to t a s to depthofafeature.Thissymbolprecedesthedepthvalue withnospace Square - is used to t a single s to a . The symbol pr

15、ecedes the no spacedepthofafeature.Thissymbolprecedesthedepthvalue withnospace Square - is used to t a single s to a . The symbol precedes the no space Numberof位置数量theXisusedalongvaluetothenumberoftimesaorfeatureisrepeatedontheArc Length弧长- t a is an arc length onacurvedoutline.Thesymbolisplacedabov

16、ethe.Radius- creates a zone defined by two arcs (the minimum umradii).ThepartsurfacehisSpherical Radius 球半径 - precedes the value of a SphericalDiameter- shall precede the tolerance value where specified tolerance value represents spherical zone. Also, tolerance may be used to control the location of

17、 a spherical relative to other features of a part. The symbol for spherical precedes the size of the feature and itional value,toindicateasphericaltoleranceControlled Radius可控- creates a tolerance zone defined by arcs (the minimum um t are tangent to the . Where a controlled radius is specified, the

18、 part contour the crescent-d tolerance zone must be a fair curve without flats reversals. Additionally, radii taken at all s on the part contour neither be n the specified minimum limit nor n umn-totaprofiletolerancereversals. Additionally, radii taken at all s on the part contour neither be n the specified minimum limit nor n umn-totaprofiletolerancestoseveralfeatures, letters designate where the profile tolerance begins ends. These letters are re