SIST EN 14070:2004+A1:2009

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Varnost obdelovalnih strojev - Stroji za prenos in posebne nameneSicherheit von Werkzeugmaschinen - Transfer- und Einzweck- oder
SondermaschinenSécurité des machines-outils - Machines transfert et machines spécialesSafety of machine tools - Transfer and special-purpose machines25.080.01Stroji na splošnoMachine tools in generalICS:Ta slovenski standard je istoveten z:EN 14070:2003+A1:2009SIST EN 14070:2004+A1:2009en,fr,de01-maj-2009SIST EN 14070:2004+A1:2009SLOVENSKI
STANDARD



SIST EN 14070:2004+A1:2009



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14070:2003+A1
February 2009 ICS 25.080.01 Supersedes EN 14070:2003English Version
Safety of machine tools - Transfer and special-purpose machines
Sécurité des machines-outils - Machines transfert et machines spéciales
Sicherheit von Werkzeugmaschinen - Transfer- und Einzweck- oder
Sondermaschinen This European Standard was approved by CEN on 24 July 2003 and includes Amendment 1 approved by CEN on 29 December 2008.
CEN members are bound to comply 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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, 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 United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14070:2003+A1:2009: ESIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 2 Contents page Foreword .3 0 Introduction .4 1 Scope .4 2 Normative references .5 3 Terms and definitions .7 4 List of significant hazards .8 5 Safety requirements and/or protective measures . 13 6 Verification of safety requirements and/or protective measures . 25 7 Information for use . 25 Annex A (normative)
Guards on transfer and special purpose machines - Impact test method . 28 Annex B (informative)
Equipment for impact test . 32 B.1 Gun device . 32 B.2 Running the equipment . 32 Annex C (informative)
Illustrative figures used as examples . 33 Annex D (normative)
Noise emission measurement . 38 Annex ZA (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC, amended by Directive 98/79/EC"""" . 40 Annex ZB (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC"""" . 41 Bibliography . 42
SIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 3 Foreword This document (EN 14070:2003+A1:2009) has been prepared by Technical Committee CEN/TC 143 “Machine tools - Safety”, the secretariat of which is held by SNV. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document includes Amendment 1, approved by CEN on 2008-12-29. This document supersedes EN 14070:2003. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ". This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential safety requirements of the Machinery Directive to determine safety for new transfer and special purpose machines. !For relationship with EC Directive(s), see informative Annexes ZA and ZB, which are integral parts of this document." Annexes A and D are normative. Annexes B and C are informative. This document includes a Bibliography. 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, Cyprus, Czech Republic, 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 United Kingdom. SIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 4 0 Introduction This European Standard is a type C standard as stated in 6.3.2 of EN 1070:1998. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of this type C standard take precedence. Transfer and special purpose machines present a wide range of hazards due to the variety of processes and configurations with possible obstructions to vision on these machines, in particular, those hazardous events which result from contact with:  Moving tools especially when being rapidly rotated in spindles;  Fast moving machine parts;  Fast moving workpieces;  Power operated mechanisms for workpiece handling, load or unload. The figures in annex C (informative) are examples only and are not intended to illustrate the only interpretation of the text. A list of standards related to EN 14070 is given in the bibliography. 1 Scope 1.1 This standard specifies the technical safety requirements and protective measures to be adopted by persons undertaking the design, construction and supply (including information which must be provided for installation and dismantling, with arrangements for transport and maintenance) of transfer and special purpose machines (see 3.1). These machines are designed to process only a pre-specified metal or analogous material workpiece, or limited family of similar workpieces by means of a predetermined sequence of machining operations and process parameters. 1.2 This standard takes account of intended use, including reasonably foreseeable misuse, maintenance, cleaning, and setting operations. It specifies access arrangements to machining positions and manual load/unload stations (see 3.4).
It presumes access to the machine from all directions.
It describes means to reduce risks to operators and other exposed persons. 1.3 This standard also applies to transport devices for workpiece load/unload when they form an integral part of the machine. 1.4 This standard deals with significant hazards relevant to transfer and special purpose machines when they are used as intended and under the conditions foreseen by the manufacturer (see clause 4).
The safety requirements and/or protective measures to prevent or minimise those hazards identified in Table 1 and procedures for verification of these requirements or measures are found in clause 5. Safety requirements and/or measures are not specified for: Fire and Explosion 1.5 Where machines employ processes which are covered by other standards (e.g. grinding, turning, forming, EDM, laser processing), the requirements of those standards should be applied (see Bibliography). 1.6 This standard applies to machines which are manufactured after publication of this standard by CEN. SIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 5 2 Normative references This European Standard 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 European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 292-1:1991, Safety of machinery - Basic concepts, general principles for design – Part 1: Basic terminology, methodology. EN 292-2:1991, Safety of machinery - Basic concepts, general principles for design – Part 2: Technical principles and specifications. EN 292-2:1991/A1:1995, Safety of machinery - Basic concepts, general principles for design – Part 2: Technical principles and specifications; Amendment A1. EN 294:1992, Safety of machinery – Safety distances to prevent danger zones being reached by the upper limbs. EN 349, Safety of machinery – Minimum gaps to avoid crushing of parts of the human body. EN 574, Safety of machinery – Two-hand control devices – Functional aspects – Principles for design. EN 614-1, Safety of machinery - Ergonomic design principles – Part 1: Terminology and general principles. EN 614-2, Safety of machinery - Ergonomic design principles – Part 2: Interactions between the design of machinery and work tasks. EN 626-1, Safety of machinery – Reduction of risks to health from hazardous substances emitted by machinery – Part 1 - Principles and specifications for machinery manufacturers. EN 811:1996, Safety of machinery - Safety distances to prevent danger zones being reached by the lower limbs. EN 894-1, Safety of machinery - Ergonomic requirements for the design of displays and control actuators – Part 1: General principles for human interactions with displays and control actuators. EN 894-2, Safety of machinery – Ergonomics requirements for the design of displays and control actuators – Part 2: Displays. EN 894-3:2000, Safety of machinery – Ergonomics requirements for the design of displays and control actuators – Part 3: Control actuators. EN 953:1997, Safety of machinery – Guards – General requirements for the design and construction of fixed and movable guards. EN 954-1, Safety of machinery - Safety-related parts of control systems – Part l: General principles for design. EN 982:1996, Safety of machinery - Safety requirements for fluid power systems and their components – Hydraulics. EN 983:1996, Safety of machinery - Safety requirements for fluid power systems and their components – Pneumatics. EN 999, Safety of machinery – The positioning of protective equipment in respect of approach speeds of parts of the human body. SIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 6 EN 1005-1, Safety of machinery – Human physical performance – Part 1: Terms and definitions. EN 1005-2, Safety of machinery – Human physical performance – Part 2: Manual handling of machinery and component parts of machinery. EN 1005-3, Safety of machinery – Human physical performance – Part 3: Recommended force limits for machinery operation. EN 1037:1995, Safety of machinery – Prevention of unexpected start-up. EN 1050:1996, Safety of machinery - Principles for risk assessment. EN 1070:1998, Safety of machinery – Terminology. EN 1088:1995, Safety of machinery - Interlocking devices associated with guards – Principles for design and selection. EN 1760–1, Safety of machinery - Pressure sensitive protective devices – Part 1: General principles for the design and testing of pressure sensitive mats and pressure sensitive floors. EN 1837, Safety of machinery – Integral lighting of machines. EN ISO 3744, Acoustics – Determination of sound power levels of noise sources using sound pressure – Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994). EN ISO 3746:1995, Acoustics – Determination of sound power levels of noise sources using sound pressure – Survey method using an enveloping measurement surface over a reflecting plane (ISO 3746:1995). EN ISO 4871, Acoustics – Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996). EN ISO 7250, Basic human body measurements for technological design (ISO 7250:1996). EN ISO 9614-1, Acoustics – Determination of sound power levels of noise sources using sound intensity – Part 1: Measurement at discrete points (ISO 9614-1:1993). EN ISO 11202:1995, Acoustics - Noise emitted by machinery and equipment - Measurement of emission sound pressure levels at a work station and at other specified positions - Survey method in situ (ISO 11202:1995). EN ISO 11204:1995, Acoustics - Noise emitted by machinery and equipment - Measurement of emission sound pressure levels at a work station and at other specified positions - Method requiring environmental corrections (ISO 11204:1995). EN ISO 11688-1, Acoustics – Recommended practice for the design of low–noise machinery and equipment – Part 1: Planning (ISO/TR 11688-1:1995). EN ISO 11688-2, Acoustics – Recommended practice for the design of low–noise machinery and equipment – Part 2: Introduction to the physics of low-noise design (ISO/TR 11688-2:1998). EN 60204-1:1997, Safety of machinery - Electrical equipment of machines – Part 1: General requirements (IEC 60204-1:1997). EN 60825-1:1994/A1, Safety of laser products – Part 1: Equipment classification, requirements and user's guide; Amendment A1 (IEC 60825-1:1993/A1:1997) / Note: Endorsement notice EN 61000-6–2, Electromagnetic compatibility (EMC) – Part 6-2: Generic standards - Immunity for industrial environments (IEC 61000-6-2:1999, modified). SIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 7 EN 61000-6-4, Electromagnetic compatibility (EMC) – Part 6-4: Generic standards - Emission standard for industrial environments (IEC 61000-6-4:1997, modified). EN 61310-3, Safety of machinery – Indication, marking and actuation – Part 3: Requirements for the location and operation of actuators (IEC 613010-3:1999). EN 61496-1, Safety of machinery – Electro-sensitive protective equipment – Part 1 - General requirements and tests (IEC 61496-1:1997). IEC 61496-2, Safety of machinery – Electro-sensitive protective equipment – Part 2 – Particular requirements for equipment using active opto-electronic protective devices. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions given in EN 1070 apply.
Additional terms and definitions specifically needed for this document are added below. 3.1 transfer and special purpose machines machine designed to process only a pre-specified workpiece or family of workpieces, by means of a pre-determined sequence of machining operations and process parameters (see Figures C.1 and C.2) NOTE These machines can include one or more of the following elements:  station(s) incorporating unit(s) (see 3.4 and 3.5 below);  transport system(s) for the workpiece;  clamping devices;  metal working fluid system(s);  swarf/chip removal system(s);  measurement and test systems. 3.2 work zone space within which the machine mechanisms are located and the process(es) are performed 3.3 machine working cycle period of time between the start of process on one workpiece and the start of process on the next workpiece after a transfer NOTE This is determined by the longest individual station time. 3.4 station term applied to the fixed positions within a machine at which workpieces are located during the processing portion of the machine working cycle NOTE Stations are normally identified by sequential numbering e.g.:  Station 1
– Load station  Station 2
– Machining station  Station 3
– Gauging station  Station 4
– Idle station  Station XX – Unload station
The term station also covers the fixtures, units, heads and other mechanisms associated with the process performed at a particular station (see Figures C.3, C.4 and C.5). SIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 8 3.5 unit single axis or multi-axis module located at a station to carry the tooling, device or mechanism which performs the process on the workpiece (see Figure C.6) 3.6 workpiece load/unload device mechanism that delivers workpieces to, or removes them from, the machine 4 List of significant hazards 4.1 The list of hazards contained in Table 1 is the result of a hazard identification and risk assessment carried out as described by EN 1050, for transfer and special purpose machines covered by the scope of this standard. The safety requirements and/or protective measures and information for use contained in clauses 5 and 7 are based on the risk assessment and deal with the identified hazards by either eliminating them or reducing the effects of the risks they generate. 4.2 The risk assessment assumes foreseeable access from all directions, as well as unexpected start–up. Risks to both the operators and other persons who can have access to the hazard zones are identified, taking into account hazards which can occur under various conditions (e.g. commissioning, set–up, production, maintenance, repair, decommissioning) during the life of the machine. The assessment includes an analysis of the effect of failure in the control system. 4.3 In addition, the user of this standard (i.e. the designer, manufacturer or supplier) shall validate that the risk assessment is complete for the machine under consideration with particular attention to:  the intended use of the machine including maintenance, setting and cleaning, and its reasonably foreseeable misuse;  the identification of the significant hazards associated with the machine. Table 1 — List of significant hazards and major sources of these hazards associated with transfer and special purpose machines a Description Example(s) of related hazardous situation(s) Associated activityRelated danger zone Clause 5 Reference (Table 2) 1. Mechanical hazards due to: 1.1 Crushing
workpiece clamping loading/reorienting/ unloading between clamps and workpiece 1.2
transfer mechanism maintenance within pits 1.5
movement of
workpiece handling devices,
transfer mechanism or unit heads operating cycle of machine, process control,
manual tool change, maintenance at machine 1.1, 1.2 1.2 Shearing movement of axes,
workpiece handling devices or transfer mechanism operating cycle of machine, manual tool change,
maintenance at machine 1.1 to 1.1.5, 1.2, 1.3, 1.4 1.3 Cutting or severing spindle or tool running or cutting spindle running at spindle or tool 1.1 to 1.1.5 1.4 Entanglement rotating tools spindle running at spindle or tool 1.1 to 1.1.5 SIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 9 a Description Example(s) of related hazardous situation(s) Associated activityRelated danger zone Clause 5 Reference (Table 2)
removal of swarf/chips power–operated swarf/chip removal swarf/chip collection and discharge zones 1.3 1.5 Drawing–in or trapping movement of workpiece handling, transfer mechanism or unit head power–operated motion of workpiece
or tool in spindle envelope of movement of workpiece or at unit head
1.1 to 1.1.5, 1.2, 1.3, 1.4
rotating power transmission mechanisms
maintenance in or around machine 1.4 1.6 Impact moving/rotating tool spindle running at spindle or tool 1.1 to 1.1.6.4
workpiece transfer
power-operated workpiece transfer envelope of motion of workpiece and workpiece transfer mechanisms 1.2 1.7 Stabbing or puncture moving tool (especially eccentric tools) process control at tool in spindle 1.1 to 1.1.6.4
handling tools during manual tool change or replenishing tool magazine at sharp cutter faces (see clause 7)
handling swarf/chips during loading/ unloading and cleaning at workpiece, table, and swarf /chip collecting and discharge zones (see clause 7) 1.9 High pressure fluid ejection Pipes or hoses carrying high pressure fluids machine operating,
maintenance at or near machine 13, 17 2 Electrical hazards due to: 2.1 Contact of persons with live parts (direct contact) contact with live parts or connections during commissioning, maintenance, trouble shooting electrical cabinet, terminal boxes, control panels at machine
2.2 Contact of persons with parts which have become live under faulty conditions (indirect contact) contact with live parts or connections during operation, inspection and maintenance of machine at machine or faulty part
3 Thermal hazards resulting in: 3.1 Burns or scalds by a possible contact of persons ejection of swarf
during cutting at or near machine 1.1.1, 1.1.2, 17 SIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 10 a Description Example(s) of related hazardous situation(s) Associated activityRelated danger zone Clause 5 Reference (Table 2)
handling of hot work material during unloading at unload position 7.2.f
contact with hot tooling
during tool change,
process control,
maintenance at unit heads 7.2.f 4 Hazards generated by noise resulting in: 4.1 Hearing loss (deafness), other physiological disorders (e.g. loss of balance, loss of awareness) motion of power transmission elements, cutting processes and fluid power systems during operating cycle of machine near machine 4 4.2 Interference with speech communication, acoustical signals air blast used for cleaning of tool or fixture/pallet locations
during operating cycle of machine near machine 4 6 Hazards generated by radiation 6.5 Lasers direct or reflected visual exposure to laser radiation maintenance of laser positional feedback system within machine 6.5 7 Hazards generated by materials and substances (and their constituent elements) processed or used by the machinery 7.1 Hazards from contact with or inhalation of harmful fluids, gases, mists, fumes, and dusts conditions near machine caused by ejection of particles of work material, fluid droplets or mist from metal working fluids during operating cycle of the machine at or near machine 7.1 7.2 Fire or explosion flammable work material, flammable (low flash point) metal working fluids during operating cycle of the machine at or near machine 7.2 7.3 Biological or micro–biological (viral or bacterial) hazards contact with hydraulic or metal working fluid as liquid or mist containing detritus and bacteria during operation, process control, and maintenance at or near machine 7.3 SIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 11 a Description Example(s) of related hazardous situation(s) Associated activityRelated danger zone Clause 5 Reference (Table 2) 8 Hazards generated by neglecting ergonomic principles in machinery design as,
e.g.
hazards from: 8.1 Unhealthy postures or excessive effort (repetitive strain)
lifting and reaching while handling workpiece, tooling or
machine parts during loading/ unloading, process control, and maintenance at load/unload and tool mounting positions, maintenance action points 8.1 8.2 Inadequate consideration of hand-arm or foot-leg anatomy inappropriate location of controls during loading/ unloading, process control, and maintenance at load/unload and tool mounting positions, maintenance action points 8.2 8.4 Inadequate local lighting judgement and accuracy of manual actions impaired during handling or positioning of workpiece or tooling during loading /unloading, process control,
handling of tooling at load/unload, tool mounting positions 8.4 8.6 Human errors, human behaviour reasonably foreseeable misuse, inadvertent operation of controls, incorrect work material or cutter handling/setting during loading/ unloading, process control, tool handling at load/unload, tool mounting positions 8.6 8.7 Inadequate design, location or identification of manual controls inadvertent
operation of controls during operating cycle of machine,
setting,
maintenance at or near machine 8.7 8.8 Inadequate design or location of visual display units misinterpretation of displayed information during operating cycle of machine, setting,
maintenance at or near machine 8.8 10 Unexpected start-up, unexpected overrun/ over speed (or any similar malfunction) from: 10.1 Failure/disorder of the control system mechanical hazards associated with selected machine movement during setting, cleaning
at machine 10.1 10.2 Restoration of energy supply after an interruption unexpected movements of machineduring setting, cleaning or maintenance at or near machine 10.2 10.3 External influences on the electrical equipment unpredictable behaviour of electronic controls due to electromagnetic interference during setting or operating cycle of the machine at or near machine 10.3 SIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 12 a Description Example(s) of related hazardous situation(s) Associated activityRelated danger zone Clause 5 Reference (Table 2) 13 Failure of the power supply malfunctions of the control with consequent misapplication of stored energy or power.
Power work holding fails, motor over speed. Part breakage causes machine elements to move under residual forces (inertia, gravity, spring/ energy storage means) causing external elements to move unexpectedly during operation, process control, maintenance at machine where machine elements retained in a safe condition by the application of power or fluid pressure. 13 14 Failure of the control circuit Unexpected movements of machine during setting, cleaning or maintenance at or near machine 14 15 Errors of fitting machine elements fail or move unexpectedly during process control, tool mounting, maintenance at machine 15 17 Falling or ejected objects or fluids ejection of machine parts, workpiece or tools caused by clamping device, control system failures or collision due to data errors during the operating cycle of the machine at or near machine 17 18 Loss of stability, overturning of machinery unrestrained machine or machine part (maintained in position by gravity), falls or overturns during loading/ unloading of heavy/unwieldy workpieces or
maintenance (disassembly/ relocation) at machine
18 19 Slip , trip, and fall of persons (related to machinery) ejection or spillage of metal working fluids and lubricants (also hydraulic fluid if used); work at heights during workpiece load/unload, setting, process control and maintenance work at heights work to replenish fluids (e.g. lubricants) machine table, floor area around machine and workpiece permanent means of access to the machine 19 a This list is derived from annex A of EN 1050:1996. SIST EN 14070:2004+A1:2009



EN 14070:2003+A1:2009 (E) 13 5 Safety requirements and/or protective measures
5.1 General requirements Transfer and special purpose machines shall comply with the safety requirements and/or protective measures of this clause. In addition, the transfer and special purpose machines shall be designed according to the principles of EN 292 for hazards relevant but not significant which are not dealt with by this standard. 5.2 Specific requirements Table 2 — List of safety requirements and/or protective measures and their verification procedures NOTE The numbering of various provisions in this table is in accordance with Table 1 and hence missing numbers correspond to hazards which are not significant Hazards
Safety requirement and/or protective measure Verification 1 Mechanical 1.1 Work zone
1.1.1 Guarding strategy Fixed and/or interlocked movable guards shall enclose the work zone during the operating cycle of the machine (see Figure C.7). NOTE
General guidance for the design and selection of safeguards, where the hazards from moving parts cannot be avoided by design is given in 4.1, 4.2 and Table 1 of EN 292-2:1991. For the purposes of this clause,
1) all applications of protective equipment shall be in accordance with the following:electro sensitive protective equipment (ESPE) in accordance with EN 61496-1, active opto–electronic protective devices (AOPDs) in accordance with IEC 61496-2, type 4, pressure sensitive protective devices (PSPDs) in accordance with EN 1760-1. 2) Guards shall be in accordance with EN 953, and interlocking devices shall be in accordance with EN 1088. Visual inspection
1. 1. 2 Guard characteristics
1.1.2.1 Location and height
Where reasonably practicable, work zone guarding shall be fixed to the structure of the machine and prevent access to the hazard. Any opening between the bottom of
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