GB 18568-2001 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 18568-2001 | English | 140 |
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GB 18568-2001: Machining centres -- Safeguarding specification---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB18568-2001
GB
ICS 25.040.10
J 50
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
Machining centers - Safeguarding specification
Issued on: DECEMBER 13, 2001
Implemented on: AUGUST 1, 2002
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine of People's Republic of China
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Hazards of machine tool ... 7
4 Safety requirements, measures and evaluation ... 15
5 Information for use ... 39
6 Responsibilities ... 41
Foreword
This Standard’s Chapter 3, Article 4.7.3, Article 4.8.1, Article 4.8.3 and Article
4.8.4 are recommended, the rest are mandatory.
Formulated on the basis of GB 15760-1995 "Metal-cutting machine tools -
General safeguarding specification”, and combined with the structural
characteristics of the machining center, this Standard is a supplement and
realization to the aforementioned standard.
This Standard was written on the basis of GB/T 16755-1997 "Safety of
machinery - Rules for drafting and presentation of safety standards".
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of China National Technical
Committee for Standardization of Metal Cutting Machine Tool.
The drafting organization of this Standard. Beijing Machine Tool Research
Institute.
Main drafters of this Standard. Zhang Wei and Li Xiangwen.
Machining centers - Safeguarding specification
1 Scope
This Standard specifies the technical requirements and safety measures on
major hazards that shall be taken by machining centers.
This Standard is applicable to general-use machining centers.
2 Normative references
The following standards contain provisions which, through reference in this
Standard, constitute the provisions of this Standard. At the time of publication,
the editions indicated were valid. All standards shall be revised. The parties
who enter into agreement based on this Standard are encouraged to investigate
whether the latest versions of these standards are applicable.
GB 191-2000 Packaging - Pictorial marking for handling of goods (eqv ISO
780.1997)
GB 1251.1-1989 Ergonomics - Danger signals for public and work areas -
Auditory danger (eqv ISO 7731.1986)
GB 1251.2-1996 Ergonomics - Visual danger signals - General requirements
design and testing
GB 1251.3-1996 Ergonomics - system of auditory and visual danger and
information signals
GB 2893-1982 Safety colors
GB 2894-1996 Safety signs (neq ISO 3864.1984)
GB/T 3168-1993 Numerical control of machine – Symbols (neq ISO 2972.1979)
GB 4053.1-1993 Safety requirements for fixed steel vertical ladders
GB 4053.2-1993 Safety requirements for fixed steel oblique ladders
GB 4053.3-1993 Safety requirements for fixed industrial protective railings
GB 4053.4-1983 Fixed steel industrial platform
GB/T 5226.1-1996 Safety of machinery - Electrical equipment of machines -
Part 1. General requirements (eqv IEC 204-1.1992)
GB/T 6527.2-1986 General code of safety color (eqv ISO 3864.1984)
GB/T 6576-1986 Machine tools - Lubrication systems (neq ISO 5170.1977)
GB 7247-1995 Radiation safety of laser products equipment classification
requirements and users guide (idt IEC 825.1984)
GB/T 7632-1987 Recommendations for the choice of lubricants for machine
tools
GB/T 7932-1987 Pneumatic fluid power - General rules relating to systems (neq
ISO 4414.1982)
GB 8196-1987 Safety requirement of guard on machinery
GB 8197-1987 Safety requirement of shield
GB 9969.1-1998 General principles for preparation of instructions for use of
industrial products
GB 12265.1-1997 Safety of machinery - Safety distances to prevent danger
zones being reached by the upper limbs
GB 12265.2-2000 Safety of machinery - Safety distances to prevent hazard
zones being reached by the lower limbs
GB 12265.3-1997 Safety of machinery - Minimum gaps to avoid crushing of
parts of the human body
GB/T 13379-1992 Principles of visual ergonomics - the lighting of indoor work
places (neq ISO 8995.1989)
GB/T 14775-1993 Ergonomics requirements for controller
GB/T 14776-1993 Ergonomics - Principles for determining dimensions of work
places in manufacturing areas and the dimensions
GB/T 15241.2-1999 Ergonomic principles related to mental workload - Part 2.
Design principles (idt ISO 10075-2.1996)
GB/T 15706.1-1995 Safety of machinery - Basic concept, general principles for
design - Part 1. Basic terminology, methodology
GB/T 15706.2-1995 Safety of machinery - Basic concepts, general principles
for design Part 2. Technical principles and specifications
GB 15760-1995 Metal-cutting machine tools - General safeguarding
specification
GB/T 16251-1996 Ergonomic principles in the design of work systems (eqv ISO
6385.1981)
GB 16754-1997 Safety of machinery - Emergency stop - Principles for design
(eqv ISO/IEC 13850.1995)
GB/T 16769-1997 Metal-cutting machine tools - Measurement method of sound
pressure level
GB/T 16855.1-1997 Safety of machinery - Safety related parts of control
systems - Part 1. General principles for design
GB/T 16856-1997 Safety of machinery - Principles for risk assessment
GB/T 17161-1997 Machine tools - Direction of operation of controls (eqv ISO
447.1984)
GB/T 17454.1-1998 Safety of machinery Pressure sensitive protective device
Part 1. General principles for the design and testing of pressure sensing mats
and pressure sensing floors
GB 17888.1-1999 Safety of machinery - Permanent means of access to
machinery - Part 1. Choice of a fixed means of access between two levels
GB 17888.2-1999 Safety of machinery - Permanent means of access to
machinery - Part 2. Working platforms and walkways
GB 17888.3-1999 Safety of machinery - Permanent means of access to
machinery - Part 3. Stairs stepladders and guard-rails
GB 17888.4-1999 Safety of machinery - Permanent means of access to
machinery - Part 4. Fixed ladders
GB/T 18153-2000 Safety of machinery - Temperatures of touchable surfaces -
Ergonomics data to establish temperature limit values for hot surfaces
GB 18209.1-2000 Safety of machinery - Indication, marking and actuation - Part
1. Requirements for visual, auditory and tactile signals (idt IEC 61310-1.1995)
GB 18209.2-2000 Safety of machinery - Indication, marking and actuation - Part
2. Requirements for marking (idt IEC 61310-2.1995)
JB/T 8356.1-1996 Machine Tools - Specification for Packing
JB/T 8356.2-1996 Machine Tools - Packing Box
JB/T 8356.3-1996 Inside-small Wood Box for Packing of Machine Tools
JB/T 9878-1999 Metal cutting machine tools - Determination of dust
concentration
JB/T 9879-1999 Metal cutting machine tools - Determination method of oil mist
concentration
JB/T 10051-1999 Hydraulic system general specifications for metal-cutting
machine tools
3 Hazards of machine tool
3.1 Mechanical hazards
3.1.1 Crushing hazard
a) Crushing hazard between headstock and workbench;
b) Crushing hazard between workbench AND wall or other objects;
c) Crushing hazard between saddle (or sliding plate) AND wall or other
objects;
d) Crushing hazard between cutting tool and cutting tool magazine;
e) Crushing hazard between cutting tool AND tool clamping mechanism or
mechanical hand;
f) Crushing hazard between workpiece AND power workpiece clamping
mechanism or workpiece movement (e.g. workpiece indexing);
g) Crushing hazard between mechanical chip conveyor's moving part and
the fixed part;
h) Crushing hazard caused by operator's unexpected movement or
observation during processing.
3.1.2 Shearing hazard
a) Shearing hazard between workbench and saddle;
b) Shearing hazard between saddle and machine body;
c) Shearing hazard between headstock and column (or sliding plate);
d) Shearing hazard between cutting tool and cutting tool magazine.
inconsistent with direction of human movement;
c) Hazard of unintended actions of machine tool caused by carelessness.
3.8 Hazards caused by energy supply disruption, damaged mechanical
parts and other parafunction
3.8.1 Energy supply disruption of machine tool or control system
Hazard of power interruptions or fluctuations caused by malfunctions of
machine tool. Hazard caused by automatic start of machine tool when it is
switched on again after power interruption.
3.8.2 Accidental thrown out of machine tool parts and accidental ejection of
pressure gas or liquid
a) Hazard of accidental thrown out or falling of cutting tool, workpiece during
power interruption or loose connection;
b) Hazard caused by accidental ejection of pressure gas or liquid during
power interruption or component damaging.
3.8.3 Failure or malfunction of control system
a) Hazard caused by moving part's malfunction, accidental start, runaway
speed change and unstoppable movement;
b) Hazard caused by spindle overload and feed mechanism overload;
c) Hazard caused by unreliable function of control.
3.8.4 Assembly error
Hazard caused by assembly error of machine tool part, and wrong connection
of catheter, cable, wire or hydraulic and pneumatic component.
3.8.5 Overturning and unexpected loss of machine tool stability
a) Hazard of overturning, falling or abnormal movement of mach...
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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