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GB 17120-2012: Metal forming machinery -- Safety requirements
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PDF similar to GB 17120-2012
Basic data | Standard ID | GB 17120-2012 (GB17120-2012) | | Description (Translated English) | Metal forming machinery -- Safety requirements | | Sector / Industry | National Standard | | Classification of Chinese Standard | J62 | | Classification of International Standard | 25.120.10 | | Word Count Estimation | 13,171 | | Older Standard (superseded by this standard) | GB 17120-1997 | | Quoted Standard | GB 150.1; GB 150.2; GB 150.3; GB 150.4; GB 2893; GB 2894; GB/T 3766-2001; GB 4584; GB 5083; GB 5092; GB 5226.1-2008; GB 7247.1; GB/T 14776; GB/T 15241.2; GB/T 15706.1-2007; GB/T 15706.2-2007; GB/T 16251; GB 16754; GB/T 16855.1; GB/T 16856.1; GB 17888.1; G | | Regulation (derived from) | National Standards Bulletin No. 28 of 2012 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This Chinese standard specifies the forging machinery design, manufacture and use of safety requirements. This standard applies to forging machinery. | GB 17120-2012: Metal forming machinery -- Safety requirements---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Metalforming machinery.Safety requirements
ICS 25.120.10
J62
National Standards of People's Republic of China
Replacing GB 17120-1997
Metalforming machinery - Safety requirements
Issued on. 2012-11-05
2013-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Chapter 4 of this standard are recommended, the rest are mandatory.
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB 17120-1997 "Metalforming machinery - Safety requirements"
This standard compared with GB 17120-1997, the main technical changes are as follows.
--- Removed and added the normative references;
--- Modify the terms and definitions;
--- Increased in Chapter 4;
--- Increasing the noise requirements (see 5.11);
--- Increased emission requirements (see 5.14);
--- Increased requirements for substances and materials (see 5.15);
--- Increased Ergonomic requirements (see 5.16);
--- Delete the design and construction requirements for machine parts (see the 1997 edition 4.2);
--- Remove the balance check request (see 1997 edition 5.4);
--- Remove the brake angle requirements (see the 1997 version 6.2.3);
--- Remove the adjusting device Die height requirements (see the 1997 edition of Chapter 8);
--- Changed hands to manipulate the requirements (see 5.6.6);
--- Modify the requirements for emergency stop devices (see 5.6.9);
--- Modify the requirements for protection devices (see 5.17.3);
--- Modify the working platform, channel or straight ladder ladder and guardrail requirements (see 5.18);
--- Modify the use of information requirements (see Chapter 6).
The standard proposed by China Machinery Industry Federation.
This standard by the National Forging Machinery Standardization Technical Committee (SAC/TC220) centralized.
This standard is drafted by. Jinan Foundry and Metalforming Machinery Research Institute Co., Taian Hualu Metalforming Machine Co., Ltd., Qingdao Green forging
Forging Machinery Co., Ltd.
The main drafters of this standard. Ma Liqiang, Yin Shengjun, the king made strong, Xingji Bo.
This standard replaces the standards previously issued as follows.
--- GB 17120-1997;
--- JB4203-1986
Metalforming machinery - Safety requirements
1 Scope
This standard specifies the safety requirements for forging machinery design, manufacture and use.
This standard applies to forging machinery.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB 150 (all parts) pressure vessel
GB 2893 Safety colors
GB 2894 Safety Signs and use guidelines
GB/T 3766-2001 Hydraulic System General technical conditions
GB 4584 presses photoelectric protection device technology
GB 5083 production equipment with safety and health General
GB 5092 press induction type safety device technology
GB 5226.1-2008 Safety of machinery - Electrical machinery and electrical equipment - Part 1. General requirements
GB 7247.1 Safety of laser products - Part 1. Equipment Classification, Requirements and User's Guide
GB/T 7932-2003 General technical conditions of pneumatic systems
GB/T 14776 Ergonomic design principles job size and value
GB/T 15241.2 related to mental workload ergonomic principles - Part 2. Design Principles
GB/T 15706.1-2007 Safety of machinery - Basic concepts, general principles for design - Part 1. Basic terminology, methodology
GB/T 15706.2-2007 Safety of machinery - Basic concepts, general principles for design - Part 2. Technical principles
Ergonomic principles GB/T 16251 design of work systems
GB 16754 Safety of machinery - Emergency stop design principles
GB/T 16855.1 machinery safety control system relating to safety components - Part 1. General principles for design
GB/T 16856.1 Safety of machinery - Risk assessment - Part 1. Principles
GB 17888.1 Safety of machinery stationary facilities - Part 1. Choice of fixed means of access between two planes
GB 17888.2 Safety of machinery stationary facilities - Part 2. Working platforms and gangways
GB 17888.3 Safety of machinery stationary facilities - Part 3. Stairs, steps and guardrails
GB 17888.4 Safety of machinery stationary facilities - Part 4. Fixed ladders
Requires the operator to the location and operation. GB 18209.3 Safety of machinery - Indication, marking and actuation - Part 3
GB/T 18569.1 Safety of machinery decreased from hazardous substances emitted by machinery health risk - Part 1. mechanical system for
Manufacturer of the principles and norms
GB/T 19671 Safety of machinery - hand control devices - Functional aspects and design principles
Location GB/T 19876 Safety of machinery and parts of the body close to the speed-related safety devices
GB/T 23281 Forging Machinery noise level measurement method
GB/T 23282 forging machinery sound power level measurement
3 Terms and Definitions
GB/T 15706.1 as defined in the following terms and definitions apply to this document.
3.1
JHA area hazardzoneofworking
Completion of the regional workpiece on forging machinery. As for the working parts from time to time as the relative motion of the working parts of the reciprocating linear motion
Or flame, laser, high-pressure fluid; mold installation space (including attachments) on the work surface projected on the direction of travel included
And the space between the workpiece contains.
3.2
Direction of the work stroke workingstroke
Working parts forging machinery reciprocated from the full open position to a fully closed position of the stroke.
3.3
Safe distance safetydistance
Protection work between the danger zone and ensure the safety of the minimum distance.
3.4
Co-operating multi-synchronousactuation
Two or more operators during joint operations, each operating simultaneously manipulation device with both hands, in order to start working parts
the way.
3.5
Security Bar safetycolumn, safetyscotch, mechanicalrestraintscotch
When forging mechanical adjustment or repair the mold, placed between the bottom surface of the mold member or work with the table plate to prevent the working portion
Member accidentally moving a hazardous pillar.
3.6
Blocking means impedingdevice
Physical barriers, such as the status of fences, railings. Its setting can not impede entry into the danger zone, but can be provided at the free entry barrier
Is blocking reduce the probability of entering the danger zone.
4 forging machinery dangerous
4.1 should be GB/T 15706.1 and GB/T 16856.1 provisions risk assessment.
4.2 hazard identification, for the foreseeable misuse (including use in forging machinery, adjustment, cleaning and maintenance period) have produced dangerous
Analyse.
4.3 Forging Machinery dangerous to consider, see GB/T 15706.1-2007 Chapter 4.
5 safety requirements or measures
5.1 General Requirements
5.1.1 Design of forging machinery and spare parts, attachments should be consistent with GB 5083, GB/T 15706.1, GB/T 15706.2 and this mark
Registration requirements. Forging machinery design should be taken to reduce risk assessment and risk measures.
5.1.2 The danger can not be avoided by design, safety precautions should be taken. For the design can not take safety measures to avoid
Free dangerous legacy application information notification or alert the operator.
5.1.3 There should be no sharp edges result in personal injury, sharp corners (except function required).
5.1.4 Screw forging machinery, nuts and other fasteners and pins, because of its loose parts fall off will cause displacement, drop caused by accident
Should adopt a reliable anti-rotation.
5.1.5 Forging Machinery shall own structural characteristics, technology objects and set the appropriate mode of operation of safety devices and blocking devices.
5.1.6 Forging Machinery should be its own structural features, set the appropriate security surveillance and control device for the safety of the health of forging machinery
Monitoring.
5.1.7 working parts reciprocating forging machinery, should be required to set safety bolt, and should be the main drive or control system working parts
Interlock.
5.1.8 may produce forging machinery around dangerous, such as CNC punch turret press, CNC laser (or flame, high-pressure water) cutting machine to send
Around the intake device or the like, should be set to block devices.
5.1.9 forging machinery should not be overturned in the accident under predetermined conditions, move or fall, due to structural reasons can not guarantee stability, we should say
Ming stabilization measures.
5.1.10 pressure vessels, including accumulator design, manufacture should be consistent (all parts) requirements GB 150.
5.2 Transmission
5.2.1 General requirements
Transmission structure 5.2.1.1 forging machinery should be safe and reliable.
5.2.1.2 may cause wound, inhaled or involved in dangerous moving parts and transmission should be set safety devices, safety is not affected
Except.
Crushing and/or shearing hazard exists between 5.2.1.3 moving parts and moving parts or moving parts and the stationary member, should take security
Full protection measures.
5.2.1.4 between security guards and the moving parts of the human body can not be formed hurt pinch point.
5.2.1.5 For unidirectional rotating parts should be marked clearly in the direction of rotation of the position, such as flywheels, should turn indicating device.
5.2.1.6 The need for indicating the trip, should be set travel (motion) indicating devices.
5.2.2 flywheel disc lever
Flywheel disk flywheel plate moving lever operation should be the main drive control system interlock.
5.2.3 flywheel brake
Large forging machinery flywheel drive should normally be set flywheel brake, braking time should be consistent with the provisions of the design documents.
5.2.4 coast down
Vertically reciprocating the working parts of hydraulic drive, when running at maximum speed down is an emergency stop, the inertia value should drop symbol
Co-prescribed technical documentation of products.
5.2.5 Buffer
Spiral main drive forging machinery should be set up buffers to prevent when the brakes failed slide motion to limit the upper and rigid body
Impact.
5.2.6 cylinder hammer, hammer connector
Top 5.2.6.1 hammer hammer cylinder should hammer cushioning device.
5.2.6.2 hammer and forging die, anvil and hammer body connecting parts (oblique key pad, etc.) when the wedge can not be broken, not loose after the wedge.
5.3 clutches and brakes
5.3.1 friction clutches and brakes
5.3.1.1 interlocking action
Friction clutch and brake action should be interlocked, the interlocking should be coordinated, sensitive and reliable.
5.3.1.2 double solenoid valve
Friction clutch and brake intake and exhaust control should be used to double solenoid valve.
5.3.1.3 air and liquid pressure
Friction clutch and brake pressure air or liquid used should meet the design requirements, when the pressure is lower than the design value, the working parts
Travel should not start or stop immediately.
5.3.1.4 Brake power
Brakes should not use gas, liquid or electricity as a braking force.
5.3.1.5 angle and brake monitoring device
Friction clutch and brake forging machinery, braking angle should be consistent with the design document and should be set brake angle monitoring device.
5.3.2 Rigid clutches and brakes
5.3.2.1 emergency stop function and Intrinsically Safe
5.3.2.1.1 emergency stop function
Positive clutch should have anywhere to make forging machinery of the working parts in the working direction of the emergency stop function, ensure forging machinery
Operational safety; except 120 times higher than the number of strokes/min and non-functional requirements of the emergency stop forging machinery.
5.3.2.1.2 Intrinsic Safety
When an external force should automatically disappear positive clutch is disengaged to ensure that it itself is intrinsically safe.
5.3.2.2 control mechanism
Positive clutch operating mechanism should be reliable structure, installed correctly, securely, and should ensure that there is continuous stroke single stroke specification.
5.4 balancing device
Vertically reciprocating the work of mechanical drive components, should you need to set the balancing device. The device shall be capable of connecting rods, screw fracture,
And loss of pressure gas, normally without interruption, the working parts (including mold) supported to prevent it from falling, and can persist for some time.
5.5 overload protection device
5.5.1 Forging Machinery should be its own structural features, technological setting force, torque or power overload protection device; not due to structural reasons
Can be set shall be given to limit overload conditions or methods.
5.5.2 except overload protection action should be interlocked with the manipulation of forging machinery working parts, but the impact of interlocking forging machinery work situation.
5.6 steering control system
5.6.1 General requirements
5.6.1.1 should be consistent with GB 5226.1-2008 Chapters 5 and GB/T 16855.1 requirements.
5.6.1.2 forging machinery should start and stop devices.
5.6.1.3 Control system failure should not lead to dangerous.
Interlocking 5.6.2 specification and adjustment work
Manipulation and adjustment work specification should be interlocked.
5.6.3 locking switch
There are several job specifications forging machinery, it should be able to choose to convert all operating modes locked in position (or use a password), each location should
Clear, single place and the corresponding specifications.
5.6.4 single direction of travel
When a single direction of travel, each working parts should stop at the stop point, even though we continue pressing the start button design requirements (or
Manipulator), also working parts may not appear next trip.
5.6.5 Continuous direction of travel
Forging machinery in a continuous direction of travel, each starter must be pre-control button is pressed, then pressing the start button on the operating system before
You can start working parts. If you do not set pre-control button, then pressing the start button to continue working part time should complete a work cycle, mention
Before the button is released, the working parts should stop immediately.
5.6.6 Hands manipulation
5.6.6.1 hand control devices shall comply with GB/T 19671 of.
Hand control devices 5.6.6.2 work should meet the synchronous maneuvering requirements.
When 5.6.6.3 working components for reciprocation of forging machinery using both hands to manipulate, his hands pressing the start button (or joystick) time should be held
Continued to work hands in the course can not enter the work the danger zone, early release of one or two buttons (or joystick) direction of the work stroke should
Stop immediately.
5.6.6.4 Hands manipulation button (or joystick) arrangement position should prevent manipulation by a hand or a hand and elbow, knee and other parts
Possibilities.
5.6.7 Foot operating device
5.6.7.1 foot manipulation and manual manipulation should be interlocked.
5.6.7.2 foot and both sides of the upper portion of the foot portion of the operating device should shield.
5.6.7.3 at the foot pedal parts should cleat or anti-skid pad.
5.6.7.4 pedal parts should be used with a return spring guide rod or guide sleeve compression spring.
5.6.8 Manual lever
Manual lever should be positioned measures, and shall not be displaced due to damage.
5.6.9 emergency stop devices
Should be set to emergency stop devices (buttons, handles, etc.) 5.6.9.1 forging machinery, emergency stop devices but can not be reduced except for the risk of forging machinery.
5.6.9.2 emergency stop should be designed to comply with the provisions of GB 16754.
5.6.9.3 emergency stop devices shall be located in various operating stations and the desired position triggered an emergency stop function, and should be easily accessible so that the operator, and
No action dangerous place.
5.6.9.4 by the people operating the forging machinery, each operating point should be set to emergency stop devices.
5.6.9.5 emergency stop device shall ensure that in any practices forging machinery can stop working, but should not cut off to interrupt its work possible
Means causing accidents (e.g. clamping device, the braking device).
5.6.9.6 emergency stop devices shall be self-locking, the operation member of the color should be red, proximity operation member around the foil color should be yellow, button operation
It should be of the palm or mushroom head type.
5.6.9.7 emergency stop devices retune (disconnected) before forging machinery can not be restarted.
5.6.10 Operating button color
Color operation buttons should be consistent GB 5226.1-2008 provisions in 10.2.1.
5.7 Electrical System
Forging machinery electrical systems shall comply with the provisions of GB 5226.1.
5.8 Hydraulic System
5.8.1 Forging machine hydraulic system shall comply with the requirements of 4.3 GB/T 3766-2001.
5.8.2 hydraulic system pressure gauge should be installed in the visible part of the operator; hydraulic sudden loss of pressure or interruption due and necessary protection measures
The signal display.
5.8.3 hydraulic system should be equipped with a safety device to prevent hydraulic overloading.
5.8.4 hydraulic system leak should not cause a hazard.
5.8.5 After starting the pump, it must ensure that if the work button, the action is not working parts.
5.8.6 after the power source is disconnected, the accumulator should be able to automatic pressure relief or safety lock (except when needed to disconnect the pressure). When disconnecting the accumulator still
Keep up the pressure, the position should be clearly marked on the accumulator safety warnings.
5.8.7 should take protective measures to prevent the high-pressure fluid splash.
5.9 pneumatic system
5.9.1 Pneumatic systems shall comply with the requirements of 4.3 GB/T 7932-2003.
5.9.2 pressure gauge pneumatic system should be installed in the visible part of the operator; sudden loss of air pressure or interruption due and necessary protection measures
The signal display.
5.9.3 system shall be equipped with a safety device to prevent overloading.
5.9.4 Leakage pneumatic systems should not cause a hazard.
5.10 Lubrication Systems
5.10.1 oil lubrication system should be easy to observe.
5.10.2 Lubrication position should be clearly marked.
5.10.3 lubrication system should prevent oil from leaking onto the ground.
5.11 Noise
Forging machinery noise value shall comply with the provisions of various products noise limits, noise measurement shall comply with GB/T 23281, GB/T 23282
Provisions.
5.12 Vibration
Damping measures should be taken to protect human health and the environment.
5.13 local lighting
5.13.1 forging machinery at work because of insufficient lighting operator dangerous, should be set partial lighting.
5.13.2 shall comply with the provisions of 15.2 GB 5226.1-2008.
5.14 Radiation
5.14.1 arc ion chemistry radiation
Shall comply with the provisions of GB 5226.1-2008 4.4.7, to avoid danger.
5.14.2 thermal and laser
5.14.2.1 laser device shall comply with the provisions of GB 7247.1.
Dangerous heat, flame, laser radiation occurs 5.14.2.2 forging machinery at work, it should take appropriate protective measures, such as are provided spacer
Hot plate and prevent flames, accidental radiation laser devices.
5.15 substances and materials
5.15.1 Hazardous Substances
5.15.1.1 forging machinery use and emissions of substances and materials shall comply with GB/T 18569.1 requirements.
5.15.1.2 forging machinery materials, coolant, oil, paint, paint should not affect human health and the environment.
5.15.1.3 generation of gas, smoke and oil mist forging machinery should take effective protective measures and/or set the discharge means.
5.15.1.4 forging machinery itself produces a lot of dust shall take effective protective measures and/or set the discharge means.
5.15.2 fire and explosion
Measures should be taken to prevent gases, liquids, dust and other substances fire and explosion hazard.
5.15.3 splashing or flying
Splashing or flying workpiece should be avoided, the material to be processed, pieces (material, mold rupture), wounding liquid caused by slipping and dangerous. Such as
A transparent protective cover, partitions, etc., and its strength should be expected to withstand the load.
5.16 Ergonomics
5.16.1 General requirements
5.16.1.1 working system design should be consistent with GB/T 16251 requirements.
5.16.1.2 work location and size should be consistent with GB/T 14776 requirements of.
5.16.1.3 should be consistent with GB/T 15241.2 requirements should take full account of the operator excessive interference, stress, physical or psychological danger generated
The possibility of insurance.
5.16.1.4 forging machinery operation will cause harm, should prompt the use of information PPE.
5.16.2 operating device
Location 5.16.2.1 operating member and the operating requirements should be consistent with GB 18209.3 requirements.
5.16.2.2 The operator should be able to ascertain whether the realization of the end-effector.
5.16.2.3 operating member should try to avoid the risk of accidental operation, such as using both hands to manipulate and enabling device.
5.16.2.4 For regular use (including single direction of travel) and the handle lever and foot switch control force should not exceed
40N, except hammer operating force requirements.
5.16.2.5 the handle infrequently used, joystick and force the hand wheel, the class uses no more than 10 should not exceed 150N; each
Ban the use of no more than 25 should not exceed 80N.
5.16.3 information display device
5.16.3.1 information display position of the device should be easy to observe and identify.
5.16.3.2 Warning Messages and meanings should be clearly understandable.
5.17 Security guards
5.17.1 Configuration Guidelines
Shall forging machinery structural features and modes of operation, select and configure an appropriate safety devices work in hazardous areas at least, anti
Only the operator's hands, fingers or other body parts inadvertently enter the danger zone work. But there could be an exception.
Working parts --- forging machinery reciprocating stroke of less than 6mm;
--- Forging machinery is arranged to ensure the safety of special feeding device;
--- Set the security guards can not reduce the risk.
5.17.2 guards
Category 5.17.2.1 guards
Protective device is divided into fixed guards, movable guards, adjustable guards, interlocked guards with guard locking joint
Lock means controllable protective devices.
Requirements 5.17.2.2 guards
Protective device shall comply with GB/T 15706.2-2007 5.3 requirements.
5.17.3 Protection
5.17.3.1 kind of protection device
Protection devices into the hands manipulation device, optoelectronic protective devices and inductive safety devices.
5.17.3.2 hands manipulation button (or joystick) requirements
Hands manipulation button (or joystick) shall comply with the provisions of 5.6.6.
Requirements 5.17.3.3 optoelectronic protective devices and induction safety device
5.17.3.3.1 photoelectric protection device shall comply with the provisions of GB 4584.
5.17.3.3.2 induction type safety device shall comply GB 5092's.
5.17.3.4 safe distance away from the protection of the work of the danger zone
Method for determining the safety distance should be consistent with the provisions of GB/T 19876 of.
Select 5.17.4 security guards
Select the security guards should be consistent with GB/T 15706.2-2007 5.2 requirements.
5.18 forging machinery into the fixed facilities
5.18.1 When the need to enter the forging machinery from the ground more than 3m height operation, repairs and maintenance, should be set working platform, through
Road, ladder or ladders and guardrails.
At least one rod 5.18.2 entrance platform or ladder or ladders from the ground 1m or more, should be set up with the main drive or work forging machinery
Interlock device operating system components, and set reminders manned warning signs.
5.18.3 choice of entering the facility shall comply with the provisions of GB 17888.1.
5.18.4 Working platforms and gangways shall comply with the provisions of GB 17888.2.
5.18.5 ladder and guardrails should be consistent with GB 17888.3 requirements.
5.18.6 Fixed ladders shall comply with the provisions of GB 17888.4.
5.19 spring
5.19.1 on forging machinery safety-related agencies should be a...
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