DIN EN ISO 28927-12-2013 Hand-held portable power tools - Test methods for evaluation of vibration emission - Part 12 Die grinders (ISO 28927-12 2012) German version EN ISO 28927-1.pdf

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1、February 2013 Translation by DIN-Sprachendienst.English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I

2、CS 17.160; 25.140.01!$R5“1944718www.din.deDDIN EN ISO 28927-12Hand-held portable power tools Test methods for evaluation of vibration emission Part 12: Die grinders (ISO 28927-12:2012);English version EN ISO 28927-12:2012,English translation of DIN EN ISO 28927-12:2013-02Handgehaltene motorbetrieben

3、e Maschinen Messverfahren zur Ermittlung der Schwingungsemission Teil 12: Geradschleifer mit Spannzange (ISO 28927-12:2012);Englische Fassung EN ISO 28927-12:2012,Englische bersetzung von DIN EN ISO 28927-12:2013-02Machines moteur portatives Mthodes dessai pour lvaluation de lmission de vibrations P

4、artie 12: Meuleuses doutillage (ISO 28927-12:2012);Version anglaise EN ISO 28927-12:2012,Traduction anglaise de DIN EN ISO 28927-12:2013-02SupersedesDIN EN ISO 8662-13:1997-10andDIN EN ISO 8662-13Corrigendum 1:1999-03www.beuth.deDocument comprises 29 pagesIn case of doubt, the German-language origin

5、al shall be considered authoritative.02.13 DIN EN ISO 28927-12:2013-02 2 A comma is used as the decimal marker. National foreword This document (EN ISO 28927-12:2012) has been prepared by Technical Committee ISO/TC 118 “Compressors and pneumatic tools, machines and equipment”, Subcommittee SC 3 “Pne

6、umatic tools and machines” in collaboration with Technical Committee CEN/TC 231 “Mechanical vibration and shock” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Akustik, Lrmminderung und Schwingungstechnik im DIN und VDI (Acoustics, Noise

7、Control and Vibration Engineering Standards Committee in DIN and VDI), Working Committee NA 001-03-07-02 (NALS/VDI C 7.2) UA Hand-Arm-Schwingungen. In DIN 45679, “feed force” is force applied by only one hand; in ISO 15230 feed force refers to both hands (there it is defined as the “sum of the push

8、force of both hands”). In the present standard, in cases where a machine is operated with both hands “feed force” is to be taken to mean the sum of the force of both hands. In the Introduction, it is stated that the basic principle for transducer positioning in accordance with IEC 60745 has been ado

9、pted, which represents a deviation from ISO 20643:2005. This approach is included in Amendment 1 to ISO 20643:2005. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 2421 DIN ISO 2421 ISO 5349-1 DIN EN ISO 5349-1 ISO 5349-2 DIN EN ISO 534

10、9-2 ISO 7755-1 DIN 8033-1 ISO 7755-2 DIN 8033-2 ISO 12100 DIN EN ISO 12100 ISO 15637-1 DIN ISO 15637-1 ISO 20643 DIN EN ISO 20643 The German Standards are given in National Annex NA “Bibliography”. Standards designated IEC xxx are identical to standards designated EN xxx, published in Germany as DIN

11、 EN xxx. Amendments This standard differs from DIN EN ISO 8662-13:1997-10 and DIN EN ISO 8662-13 Corrigendum 1:1999-03 as follows: a) vibrations are to be measured in three axes and, where applicable, at both hand positions; b) new transducer locations have been specified; c) specifications relating

12、 to the measurement directions have been revised; d) vibrations due to grinding are to be measured under real working conditions. Previous editions DIN EN ISO 8662-13: 1997-10 DIN EN ISO 8662-13 Corrigendum 1: 1999-03 DIN EN ISO 28927-12:2013-02 3 National Annex NA (informative) Bibliography DIN 803

13、3-1, Hardmetal burrs Technical requirements DIN 8033-2, Hardmetal burrs Cylindrical burrs DIN 45679, Mechanical vibration Measurement and evaluation of coupling forces for assessment of vibration exposure of the hand-arm system DIN EN ISO 5349-1, Mechanical vibration Measurement and evaluation of hu

14、man exposure to hand-transmitted vibration Part 1: General requirements DIN EN ISO 5349-2, Mechanical vibrations Measurement and evaluation of human exposure to hand-transmitted vibration Part 2: Practical guidance for measurement at the workplace DIN EN ISO 12100, Safety of machinery General princi

15、ples for design Risk assessment and risk reduction DIN EN ISO 20643:2012-10, Mechanical vibration Hand-held and hand-guided machinery Principles for evaluation of vibration emission DIN ISO 2421, Coated abrasives Cylindrical sleeves DIN ISO 15637-1, Holding fixtures of cylindrical abrasive sleeves P

16、art 1: Holding fixtures with shank for hand-held grinding machines ISO 15230, Mechanical vibration and shock Coupling forces at the man-machine interface for hand-transmitted vibration DIN EN ISO 28927-12:2013-02 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN

17、 ISO 28927-12 October 2012 ICS 25.140.10; 13.160 Supersedes EN ISO 8662-13:1997 English Version Hand-held portable power tools Test methods for evaluation of vibration emission Part 12: Die grinders (ISO 28927-12:2012) Machines moteur portatives Mthodes dessai pour lvaluation de lmission de vibratio

18、ns Partie 12: Meuleuses doutillage (ISO 28927-12:2012) Handgehaltene motorbetriebene Maschinen Messverfahren zur Ermittlung der Schwingungsemission Teil 12: Geradschleifer mit Spannzange (ISO 28927-12:2012) This European Standard was approved by CEN on 12 October 2012. CEN members are bound to compl

19、y with the CEN/CENELEC 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

20、Management Centre 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 sam

21、e status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg,

22、 Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All ri

23、ghts of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 28927-12:2012: E Contents PageForeword .Introduction 1 Scope 2 Normative references .3 Terms, definitions and symbols 3.1 General .3.2 Terms and definitions .3.3 Symbols .4 Basic standards

24、and vibration test codes 5 Description of the family of machines .6 Characterization of vibration 6.1 Direction of measurement .6.2 Location of measurements .6.3 Magnitude of vibration .6.4 Combination of vibration directions 7 Instrumentation requirements .7.1 General .7.2 Mounting of transducers .

25、7.3 Frequency weighting filter 7.4 Integration time 7.5 Auxiliary equipment 7.6 Calibration .8 Testing and operating conditions of the machinery 8.1 General .8.2 Operating conditions 8.3 Other quantities to be specified 8.4 Attached equipment, workpiece and task 8.5 Operator .9 Measurement procedure

26、 and validity 9.1 Reported vibration values .9.2 Declaration and verification of the vibration emission value 10 Measurement report .Annex A (informative) Model test report for vibration emission of die grinders .Annex B (normative) Determination of uncertainty Bibliography .345566667788911111111111

27、212121212121313131717171818202225DIN EN ISO 28927-12:2013-02 EN ISO 28927:2012 (E) 2(informativ) ZA Annex Relationship between this European Standard and the EssentialRequirements of EU Directive 2006/42/EC .24Foreword This document (EN ISO 28927-12:2012) has been prepared by Technical Committee ISO

28、/TC 118 Compressors and pneumatic tools, machines and equipment” in collaboration with Technical Committee CEN/TC 231 “Mechanical vibration and shock” the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identic

29、al text or by endorsement, at the latest by April 2013, and conflicting national standards shall be withdrawn at the latest by April 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held respon

30、sible for identifying any or all such patent rights. This document supersedes EN ISO 8662-13:1997. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive. For relationship wi

31、th EU Directive, see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech

32、Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

33、Endorsement notice The text of ISO 28927-12:2012 has been approved by CEN as a EN ISO 28927-12:2012 without any modification. “DIN EN ISO 28927-12:2013-02 EN ISO 28927:2012 (E) 3IntroductionThis document is a type-C standard as stated in ISO 12100.When requirements of this type-C standard are differ

34、ent from those which are stated in type-A or -B standards, the requirements of this type-C standard take precedence over the requirements of the other standards for machines that have been designed and built according to the requirements of this type-C standard.The vibration test codes for portable

35、hand-held machines given in ISO 28927 (all parts) are based on ISO 20643, which gives general specifications for the measurement of the vibration emission of hand-held and hand-guided machinery. ISO 28927 (all parts) specifies the operation of the machines under type-test conditions and other requir

36、ements for the performance of type tests. The structure/numbering of its clauses follows that of ISO 20643.The basic principle for transducer positioning first introduced in the IEC 60745 series of European standards is followed, representing a deviation from ISO 20643 for reasons of consistency. Th

37、e transducers are primarily positioned next to the hand in the area between the thumb and the index finger, where they give the least disturbance to the operator gripping the machine.It has been found that vibrations generated by die grinders vary considerably in typical use. This is largely due to

38、variations in the unbalance of the inserted tool and from the contact between the inserted tool and the surface of the workpiece. The vibration value is also to a large extent dependent on the skill of the operator. This part of ISO 28927 uses a real working process for the test.In order to provide

39、a method that gives good measurement reproducibility, the procedure is described in detail and it is essential that the procedure be followed. The procedure is chosen to give vibration values which are, as far as possible, in accordance with ISO 20643.The values obtained according to this part of IS

40、O 28927 are type-test values. The procedures of ISO 5349 are required whenever exposure at the workplace is to be assessed.The values obtained are type-test values intended to be representative of the average of the upper quartile of typical vibration magnitudes in real-world use of the machines. Ho

41、wever, the actual magnitudes vary considerably from time to time and depend on many factors, including the operator, the task and the inserted tool or consumable. The state of maintenance of the machine itself might also be of importance. Under real working conditions, the influences of the operator

42、 and process can be particularly important at low magnitudes It is therefore not recommended that emission values below 2,5 m/s2be used for estimating the vibration magnitude under real working conditions. In such cases, 2,5 m/s2is the recommended vibration magnitude for estimating the machine vibra

43、tion.If accurate values for a specific work place are required, then measurements (according to ISO 5349) in that work situation can be necessary. Vibration values measured in real working conditions can be either higher or lower than the values obtained using this part of ISO 28927.Higher vibration

44、 magnitudes can easily occur in real work situations, caused by the use of excessively unbalanced inserted tools, bent shafts of burrs or worn-out collets.The vibration test codes given in ISO 28927 (all parts) supersede those given in ISO 8662 (all parts), which has been replaced by the correspondi

45、ng parts of ISO 28927 (see Foreword).NOTE ISO 8662-11, Hand-held portable power tools Measurement of vibrations at the handle Part 11: Fastener driving tools, can be replaced by a future part of ISO 28927.DIN EN ISO 28927-12:2013-02 EN ISO 28927:2012 (E) 41 ScopeThis part of ISO 28927 specifies a la

46、boratory method for measuring hand-transmitted vibration emission at the handles of hand-held power driven portable die grinders. It is a type-test procedure for establishing the magnitude of vibration in the gripping areas of the machines where operating under type test conditions. It is intended t

47、hat the results be used to compare different models of the same type of machine.This part of ISO 28927 is applicable to hand-held machines (see Clause 5), driven pneumatically or by other means, equipped with a collet and intended for deburring operations using hard metal burrs or mounted points, on

48、 different materials ranging from hard steel to plastics. It is also applicable to low-speed die grinders using flap wheels or cylindrical sleeves.NOTE 1 It is not applicable to straight grinders equipped with type 1 straight wheels, type 4 tapered wheels or different types of cylindrical plugs. For those machines, ISO 28927-4 is applicable.NOTE 2 It is not applicable to die grinders used with wire brushes.NOTE 3 To avoid confusion with the terms “power tool” and “inserted to