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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 847-1 : 1997 The Eu
2、ropean Standard EN 847-1 : 1997 has the status of a British Standard ICS 79.120.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Tools for woodworking Safety requirements Part 1. Milling tools and circular saw blades Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:
3、06:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 December 1997 BSI 1997 ISBN 0 580 28357 7 BS EN 847-1 : 1997 Amendmen
4、ts issued since publication Amd. No.DateText affected National foreword This British Standard is the English language version of EN 847-1 : 1997. The UK participation in its preparation was entrusted to Technical Committee MTE/23, Woodworking machines, which has the responsibility to: aid enquirers
5、to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this c
6、ommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by
7、using the Find facility of the BSI Standards Electronic Catalogue. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 28, an inside back cover and a
8、 back cover. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:06:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN Al
9、l rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 847-1 : 1997 E EUROPEAN STANDARDEN 847-1 NORME EUROPE ENNE EUROPA ISCHE NORM May 1997 ICS 79.120.10 Descriptors: Woodworking machinery, power-operated tools, milling cutters, blades, circul
10、ar saws, safety, accident prevention, hazards, specifications, design, definitions, marking English version Tools for woodworking Safety requirements Part 1: Milling tools and circular saw blades Outils pour le travail du bois Prescriptions de se curite Partie 1: Outils de fraisage, lames de scies c
11、irculaires Maschinen-Werkzeuge fu r Holzbearbeitung Sicherheitstechnische Anforderungen Teil 1: Fra s- und Hobelwerkzeuge, Kreissa gebla tter This European Standard was approved by CEN on 1997-03-19. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condit
12、ions 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 Central Secretariat or to any CEN member. This European Standard exists in three o
13、fficial 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austri
14、a, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:06:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2
15、EN 847-1 : 1997 BSI 1997 Foreword This European Standard has been prepared by Technical Committee CEN/TC 142, Woodworking machines Safety, of which the Secretariat is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or b
16、y endorsement, at the latest by November 1997, and conflicting national standards shall be withdrawn at the latest by November 1997. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requir
17、ements of EU Directive(s). Organizations contributing to the preparation of this European standard include the Comite Europe en de lOutillage (CEO). This European Standard also includes annex A describing the rig for the testing of kickback behaviour of milling tools for hand feed and annex B giving
18、 guidance to the manufacturer on information which shall be supplied to the user, concerning safe working practices to be employed. Detailed drawings for the test rig (see annex A.1) and the reference tool can be acquired from the CEN members (i.e. the national standards institutes). All figures in
19、this standard are examples or explanations. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland,
20、 Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 Introduction4 1Scope4 2Normative references4 3Definitions4 3.1milling tool for woodworking4 3.2circular saw blade (woodworking)4 3.3one piece tool4 3.4composite tool (tipped
21、tool)4 3.5complex tool4 3.6tool set5 3.7body5 3.8cutting part5 3.9cutting diameter d1(cutting radius r1)5 3.10deflector5 3.11cutting blade projection t5 3.12clamping length L5 3.13radial cutting edge projection cr5 3.14axial cutting edge projection ca5 3.15round form tool5 3.16not round form tool5 3
22、.17adhesive fixing5 3.18separable fixing5 3.18.1friction lock fixing (see figure 3)5 3.18.2form lock fixing (see figure 4)5 3.19radial and axial approach flats (see figure 5)5 3.20radial approach angle tr(see figure 5)5 3.21axial approach angle ta(see figure 5)5 3.22kickback velocity ratio VR/VC5 3.
23、23woodworking machine7 3.24similar materials7 3.25tools7 3.26hand feed7 3.27integrated feed7 3.28speed range7 3.29loading the machine7 3.30demountable power feed unit7 3.31ejection8 3.32kickback8 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:06:14 GMT+00:00 2006, Uncontrolled Copy, (c) B
24、SI Page 3 EN 847-1 : 1997 BSI 1997 4Symbols for some cutting material groups8 5List of hazards8 6Design requirements8 6.1General requirements for milling tools and circular saw blades8 6.1.1Safety requirements and/or measures8 6.1.2Separable fixing9 6.1.2.1Form lock fixing and friction lock fixing9
25、6.1.2.2Clamping parts9 6.1.3Overspeed test for complex tools9 6.1.3.1Test conditions9 6.1.3.2Test procedure9 6.1.4Cutting blade thickness and minimum clamping length9 6.1.4.1One piece or composite cutting blades9 6.1.4.2One piece hardmetal (HW, HC) cutting blades10 6.1.5Dimensions and tolerances10 6
26、.1.5.1Bore tolerances10 6.1.5.2Hub diameter and tolerances10 6.1.6Handling13 6.2Specific requirements for milling tools13 6.2.1Tools for hand fed machines13 6.2.1.1Tool form13 6.2.1.2Cutting egde projection and kickback velocity ratio13 6.2.1.3Gullet width s14 6.2.1.4Diameter of the body d14 6.2.1.5
27、Approach angles trand ta14 6.2.1.6Milling tool kickback test17 6.2.2Tool sets and extendible tools for hand fed machines17 6.2.3Prevention of relative rotation of tool set elements18 6.2.4Balance of milling tools18 6.2.4.1Quantities and units18 6.2.4.2Dynamic balancing18 6.2.4.2.1 One piece tools, c
28、omposite tools and bodies for complex tools other than cutterblocks for planing and combined planing and thicknessing18 6.2.4.2.2 Bodies of cutterblocks for planing and combined planing and thicknessing machines18 6.2.4.2.3 Complex tools18 6.2.4.2.4 Tool sets18 7Tool identification22 7.1Marking of m
29、illing tools for integrated feed other than planing and combined planing and thicknessing machines22 7.2Marking of milling tools for machines with hand feed other than planing and combined planing and thicknessing machines22 7.3Marking of milling tools for planing and combined planing and thicknessi
30、ng machines22 7.4Marking of shank mounted tools22 7.5Marking of circular saw blades22 7.6Marking of cutting components and deflectors22 8Information23 Annexes A(normative) Kickback test on a standard test rig24 A.1Test rig24 A.2Spindle moulding machine24 A.3Mechanism (see figure A.1)24 A.4Installmen
31、t and calibration24 A.5Automatic machining cycle for the performance of kickback24 A.6Measurements25 A.7Test method25 A.7.1Setting25 A.7.2Test piece (reference 12 in figure A.1)25 A.7.3Operators action25 A.7.4Number of tests25 A.8Evaluation of the results25 B(normative) Safe working practice27 B.1Ma
32、ximum speed27 B.2Circular saw blades27 B.3One piece tools27 B.4Fastening of tools and tool parts27 B.5Repair of tools27 Licensed Copy: sheffieldun sheffieldun, na, Tue Nov 07 06:06:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 847-1 : 1997 BSI 1997 Introduction The extent to which hazards
33、are covered is indicated in the scope of this standard; in addition, machinery shall comply as appropriate with EN 292 for hazards which are not covered by this standard. The requirements of this standard concern designers, manufacturers, suppliers and importers of tools for woodworking machines. Th
34、is standard also includes information which the manufacturer should provide to the user. Besides hazards which may result from inhomogeneity of the material and differing cutting forces during processing, other hazards result from high cutting speeds and manual feeding of the workpieces. 1 Scope Thi
35、s standard is applicable to all hazards arising from the design and use of tools for woodworking machines, and describes the methods for the elimination or reduction of these hazards by tool design and by the provision of information. Part 1 of the standard deals with milling tools (bore mounted, sh
36、ank mounted, integrated spindle) and circular saw blades, but does not cover any hazard related to the strength of shank of shankmounted milling tools. The hazards are listed in clause 5. This standard does not apply to boring bits, eccentric single router cutters, cutters with cutting circle less t
37、han 16 mm and to tools used in rotary knife lathes and copying lathes where the hazard of ejection and contact with the tool is always prevented by a system of fixed guards and/or movable guards interlocked with guard-locking and/or self-closing guards. 2 Normative references This European Standard
38、incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this
39、 European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 292-1Safety of machinery Basic concepts, general principles for design Part 1: Basic terminology, methodology EN 292-2 : 1991 Safety of machi
40、nery Basic concepts, general priniciples for design Part 2: Technical priniciples and specifications EN 292-2/A1 : 1995 ISO 286-2ISO system of limits and fits Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts ISO 513Application of hard cutting materials for machin
41、ing by chip removal Designation of the main groups of chip removal and groups of application ISO 1940-1Mechanical vibration; balance quality requirements of rigid rotors Part 1: Determination of permissible residual unbalance ISO 3002-1Basic quantities in cutting and grinding Part 1: Geometry of the
42、 active part of cutting tools General terms, reference systems, tool and working angles, chip breakers 3 Definitions For the purposes of this standard the following definitions apply. 3.1 milling tool for woodworking A rotating cutting tool, (e.g. milling cutter, planing cutter, thicknessing cutter)
43、 normally having its main feed direction perpendicular to its axis of rotation, for working various surfaces on wood and similar materials through chip removal. The cutting edge of the cutting part may be: parallel to the axis of rotation; square to the axis of rotation; or a profile which is a comb
44、ination of the two. The tool may be: a one piece tool; a composite tool; a complex tool; or in the form of a tool set. 3.2 circular saw blade (woodworking) A rotating cutting tool for cross-cutting or ripping wood and similar materials through chip removal. The tool cuts on its periphery and both fl
45、anks simultaneously, and may be: a one piece tool; a composite tool; or a complex tool. 3.3 one piece tool Tools without bonded or detachable parts; the body and the cutting parts are one piece. 3.4 composite tool (tipped tool) Tools where the cutting components (tips) are firmly connected to the bo
46、dy by bonding, e.g. welding, brazing, adhesive fixing, etc. 3.5 complex tool Tools where one or more of the cutting components (inserts, blades) are exchangeably mounted in a body through detachable fixing elements. The cutting components may be one piece or a composite. Licensed Copy: sheffieldun s
47、heffieldun, na, Tue Nov 07 06:06:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 847-1 : 1997 BSI 1997 Figure 1. Cutting diameter 3.6 tool set A unit consisting of a number of individual tools clamped together on a carrier. 3.7 body The part of the tool which holds the cutting blades or inse
48、rts, or on which the cutting parts are formed (ISO 3002/1). 3.8 cutting part The functional part or parts of the tool each comprised of chip producing elements. The cutting edges, face and flank are therefore elements of the cutting part. In the case of a multi-toothed cutter, each tooth has a cutti
49、ng part (ISO 3002/1). 3.9 cutting diameter d1(cutting radius r1) For tools on which various blades can be mounted, the cutting diameter d1(cutting radius r1) is the maximum possible value (see figure 1). 3.10 deflector A projecting part either exchangeably mounted or firmly connected by bonding to the body or part of the body which performs chip thickness limitation (see figures 2b, c, d, e and g). NOTE. The deflector can also be called a counter-knife. 3.11 cutting blade projection t The difference b