1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 9493:2010Geometrical productspecifications (GPS) Dimensional measuringequipment: Dial test indicators(lever type) Design andmetrological characteristics(ISO 9493:2010)L
2、icensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIBS EN ISO 9493:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 9493:2010. It supersedes BS 2795:1981, which remains current and obsolescent.The UK particip
3、ation in its preparation was entrusted to Technical Committee TDW/4/4, Technical Product Realization - Gauging and Measurement Equipment.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary pr
4、ovisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 63058 3 ICS 17.040.30 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Commi
5、ttee on 31 July 2011.Amendments issued since publicationDate T e x t a f f e c t e dLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9493 November 2010 ICS 17.040.30 English Version Geometrical
6、 product specifications (GPS) - Dimensional measuring equipment: Dial test indicators (lever type) - Design and metrological characteristics (ISO 9493:2010) Spcification gomtrique des produits (GPS) - quipement de mesurage dimensionnel: Comparateurs levier mcaniques - Caractristiques de conception e
7、t caractristiques mtrologiques (ISO 9493:2010) Geometrische Produktspezifikation (GPS) - Lngenmessgerte: Fhlhebelmessgerte - Konstruktionsmerkmale und messtechnische Merkmale (ISO 9493:2010) This European Standard was approved by CEN on 2 October 2010. CEN members are bound to comply with the CEN/CE
8、NELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre
9、 or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the o
10、fficial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
11、Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved world
12、wide for CEN national Members. Ref. No. EN ISO 9493:2010: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIBS EN ISO 9493:2010EN ISO 9493:2010 (E) 3 Foreword This document (EN ISO 9493:2010) has been prepared by Technical Committee ISO/TC 213 “Dimen
13、sional and geometrical product specifications and verification” in collaboration with Technical Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard
14、, either by publication of an identical text or by endorsement, at the latest by May 2011, and conflicting national standards shall be withdrawn at the latest by May 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or
15、 CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech R
16、epublic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 9493:2010 has
17、 been approved by CEN as a EN ISO 9493:2010 without any modification. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIBS EN ISO 9493:2010ISO 9493:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative r
18、eferences1 3 Terms and definitions .1 4 Design characteristics 2 4.1 General design features2 4.2 Type 2 4.3 Nomenclature.4 4.4 Dovetail mounting .4 4.5 Dial and pointer .5 4.6 Stylus6 4.7 Zero adjustment.7 4.8 Design characteristics (manufacturers specification)7 5 Metrological characteristics.7 5.
19、1 Maximum permissible error (MPE) and maximum permissible limit (MPL) for a number of metrological characteristics.7 5.2 Stylus8 5.3 Measuring forces.8 6 Proving of conformance with specification8 6.1 General .8 6.2 Measurement standards for calibration of metrological characteristics 8 7 Marking.8
20、Annex A (informative) Examples of a diagram of errors of indication 9 Annex B (informative) Example of data sheet for dial test indicators.11 Annex C (informative) Calibration of metrological characteristics13 Annex D (informative) Notes on use .15 Annex E (informative) Relation to the GPS matrix mo
21、del.17 Bibliography19 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIBS EN ISO 9493:2010ISO 9493:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standard
22、s bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organiz
23、ations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in
24、the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % o
25、f the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 9493 was prepared by Technical Committee ISO/TC 213, Dimensio
26、nal and geometrical product specifications and verification. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIBS EN ISO 9493:2010ISO 9493:2010(E) ISO 2010 All rights reserved vIntroduction This International Standard is a geometrical product specific
27、ation (GPS) standard and is to be regarded as a general GPS standard (see ISO/TR 14638). It influences the chain link 5 of the chains of standards on size, distance, form of a line independent of datum, form of a line dependent of datum, form of a surface independent of datum, form of a surface inde
28、pendent of datum, orientation, location, circular run-out and total run-out in the general GPS matrix. When using this International Standard, see ISO 14978. For more detailed information on the relation of this International Standard to other standards and the GPS matrix, see Annex E. Licensed Copy
29、: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIBS EN ISO 9493:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIBS EN ISO 9493:2010INTERNATIONAL STANDARD ISO 9493:2010(E) ISO 2010 All rights reserved 1Geometr
30、ical product specifications (GPS) Dimensional measuring equipment: Dial test indicators (lever type) Design and metrological characteristics 1 Scope This International Standard specifies the most important design and metrological characteristics of dial test indicators (lever type). 2 Normative refe
31、rences The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 14253-1:1998, Geometrical Product Spec
32、ifications (GPS) Inspection by measurement of workpieces and measuring equipment Part 1: Decision rules for proving conformance or non-conformance with specifications ISO 14253-2:1), Geometrical product specifications (GPS) Inspection by measurement of workpieces and measuring equipment Part 2: Guid
33、ance for the estimation of uncertainty in GPS measurement, in calibration of measuring equipment and in product verification ISO 14978:2006, Geometrical product specifications (GPS) General concepts and requirements for GPS measuring equipment ISO/IEC Guide 98-3, Uncertainty of measurement Part 3: G
34、uide to the expression of uncertainty in measurement (GUM:1995) ISO/IEC Guide 99, International vocabulary of metrology Basic and general concepts and associated terms (VIM) 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO/IEC Guide 99, ISO 14253-1, I
35、SO 14253-2, ISO 14978 and the following apply. 3.1 dial test indicator lever type measuring instrument in which the displacement of a pivoting stylus is transmitted and magnified by suitable mechanical means to a pointer which rotates in front of a circular scale 1) To be published. (Revision of ISO
36、/TS 14253-2:1999) Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIBS EN ISO 9493:2010ISO 9493:2010(E) 2 ISO 2010 All rights reserved4 Design characteristics 4.1 General design features 4.1.1 The general design and workmanship of the dial test indica
37、tor shall be such that its metrological characteristics comply with the requirements of this International Standard under all orientations of operation. 4.1.2 Dial test indicators indicate displacement in a direction normal to the axis of the stylus, and in the same plane as the rotational direction
38、 of the stylus, unless otherwise stated. See Figure D.1 as an example. If used at some other angle, a correction shall be made (see Annex D). 4.1.3 Dial test indicators shall be capable of measuring when the stylus is displaced in either direction from its rest position. NOTE Some dial test indicato
39、rs have the ability to measure in both directions without external adjustments and some dial test indicators are provided with a bias lever to change the measuring direction. 4.2 Type Dial test indicators are commonly manufactured in three types see Figure 1 a), b) and c). These types have the follo
40、wing names. Type S, Standard, where the dial face is mounted on the body of the dial test indicator, in a plane perpendicular to the plane in which the stylus moves. Type H, Horizontal, where the dial face is mounted on the body of the dial test indicator, in a plane parallel to the plane in which t
41、he stylus moves. Type V, Vertical, where the dial face is mounted at the end of the dial test indicator opposite that of the stylus. NOTE Although less common, configurations of dial test indicators, which do not fall into the above three categories, exist. The above-mentioned list of three named ty
42、pes includes those that are the most common. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIBS EN ISO 9493:2010ISO 9493:2010(E) ISO 2010 All rights reserved 3a) Type S b) Type H c) Type V Figure 1 Examples of dial test indicator types Licensed Copy
43、: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIBS EN ISO 9493:2010ISO 9493:2010(E) 4 ISO 2010 All rights reserved4.3 Nomenclature Design features of dial test indicators are shown in Figure 2. The descriptions in this International Standard use the nomenclature
44、 shown in this figure. Key 1 dovetail segments 2 bias lever (if required) 3 stylus 4 stylus tip 5 bezel 6 dial 7 scale 8 pointer 9 housing 10 friction or ratchet drive Figure 2 Nomenclature 4.4 Dovetail mounting Dial test indicators shall be provided with a means to facilitate attachment to test sta
45、nds or other similar devices. This is often accomplished by means of dovetail segments on the body of the dial test indicator (see Figure 2) and a dovetail clamp. The exact design and location of these dovetail segments is left to the manufacturers discretion. Clamping stems shall conform to the fit
46、 tolerance h6 (see Figure 3 and Table 1) to ensure interchangeability. Common nominal diameters of clamping stems include 4 mm, 6 mm and 8 mm. A portion of the clamping stem (L3in Figure 3) no shorter than 12 mm shall be held to the fit tolerance (controlled diameter). The clamping stem can be longe
47、r than this minimum length, but it is not necessary to hold the h6 tolerance on the entire length. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 15/09/2011 08:20, Uncontrolled Copy, (c) BSIBS EN ISO 9493:2010ISO 9493:2010(E) ISO 2010 All rights reserved 5Figure 3 Example of clamping stems 4
48、.5 Dial and pointer The circular scale shall be graduated in scale intervals. The scale interval and its unit shall be labelled. Examples of scale layouts are shown in Figure 4 (e.g. scale intervals of 0,01 mm, 0,001 mm, and 0,002 mm). At rest, the pointer shall be at least 1/10 revolution countercl
49、ockwise from the point representing the beginning of the measuring range. This beginning point is normally the 12 oclock or the 6 oclock position on the dial. The pointer shall move at least one full revolution beyond this beginning point of the measuring range, to the next occurrence of this point, plus at least another 1/10 revolution before reaching the end of its travel. This range before the measuring range begins is called pre-span, and the range after one full revolution is called post-
