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GB 23290-2009: [GB/T 23290-2009] Machine-tools safety -- Safety requirements for the design and construction of work holding chucks
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| GB 23290-2009 | English | 209 |
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[GB/T 23290-2009] Machine-tools safety -- Safety requirements for the design and construction of work holding chucks
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GB 23290-2009
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Basic data | Standard ID | GB 23290-2009 (GB23290-2009) | | Description (Translated English) | [GB/T 23290-2009] Machine-tools safety -- Safety requirements for the design and construction of work holding chucks | | Sector / Industry | National Standard | | Classification of Chinese Standard | J52 | | Classification of International Standard | 25.060.20 | | Word Count Estimation | 8,823 | | Date of Issue | 2009-03-05 | | Date of Implementation | 2009-10-01 | | Quoted Standard | GB/T 9239.1-2006; GB/T 15706.1-2007; GB/T 15706.2-2007; GB/T 23291-2009; JB/T 3860.2-1998; ISO 3442-1991; EN 982-1996; EN 983-1996; EN 1005-2-2003 | | Adopted Standard | ISO 16156-2004, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 2 of 2009 (total 142) | | 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 reduction and prevention of 3. 1 Definitions risks posed by chuck requirements and/or measures. Chuck associated with major risk see Chapter 4. This standard applies to chuck the designer, manufacturer, supplier and importer. This standard also gives the manufacturer shall provide the user with information. | GB 23290-2009: [GB/T 23290-2009] Machine-tools safety -- Safety requirements for the design and construction of work holding chucks
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Machine-tools safety.Safety requirements for the design and construction of work holding chucks
ICS 25.060.20
J52
National Standards of People's Republic of China
GB 23290-2009/ISO 16156.2004
Machine safety chuck design and structural safety requirements
(ISO 16156.2004, IDT)
Published 2009-03-05
2009-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China issued
Foreword
All technical content of this standard is mandatory.
This standard is identical with ISO 16156.2004 "Safety requirements for design and construction of the machine safety chuck" (in English).
This standard is equivalent translation ISO 16156.2004.
For ease of use, this standard the following editorial changes made.
The term --- "this International Standard" by "this standard";
--- delete foreword and introduction of international standards;
--- Chapter 2, "normative references", instead of the corresponding national standards are adopted as our standard of ISO and EN standard
Accurate, not as a direct reference to the use of standard ISO and EN standards, EN292-1.1991 and EN292-2.
1991 has been ISO 12100-1.2003 and ISO 12100-2.2003 replaced;
--- Chapter 3, "Terms and definitions" added to the introductory phrase;
--- 6.1.11 "in line with existing international standards" to "in line with existing national standards."
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee of metal-cutting machine tools (SAC/TC22).
This standard was drafted. Huhhot Zhonghuan (Group) Co., Ltd., Yantai Institute of machine tool accessories.
The main drafters of this standard. Du Shu succeed, Zhang Guobin, beginning Fu-chun, when Qing said.
This standard is the first release.
GB 23290-2009/ISO 16156.2004
Machine safety chuck design and structural safety requirements
Range 1
This standard specifies the requirements to reduce and prevent dangerous and/or measures 3.1 Definitions chuck caused. The main risk associated with the chuck
See Chapter 4.
This standard applies to chuck the designer, manufacturer, supplier and the importer.
This standard also gives the information of the manufacturer should provide the user.
2 Normative references
Terms of the following documents become provisions of this standard by reference in this standard. For dated reference documents, all later
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to agreements based on this standard
Whether the latest versions of these documents. For undated references, the latest version applies to this standard.
GB/T 9239.1-2006 constant state of mechanical vibration (rigid) rotor Ping Heng quality requirements - Part 1. Specification of tolerance and Ping Heng
Inspection (ISO 1940-1.2003, IDT)
GB/T 15706.1-2007 Safety of machinery basic concepts general principles for design - Part 1. Basic terminology and methods
(ISO 12100-1.2003, IDT)
GB/T 15706.2-2007 basic concepts of mechanical safety and General Design - Part 2. Technical Principles (ISO 12100-2.
2003, IDT)
GB /23291-2009 whole machine from the disc pawl manually check condition T Jaws (ISO 3089.2005, MOD)
JB/T 3860.2-1998 wedge comb-type power chuck jaws interchangeability dimensions (ISO 9401.1991, Machinetools-Jaw
mountingsonpowerchucks, MOD)
ISO 3442.1991 machine with a separation claw (key groove) self-centering chuck size and acceptance test interchangeability
EN982.1996 Safety of machinery Safety fluid power systems and components required hydraulic device
EN983.1996 Safety of machinery Safety requirements for fluid power systems and their components pneumatic means
EN1005-2.2003 Safety of machinery human physical properties - Part 2. mechanical and manual mechanical element
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
By moving the clamping jaws clamp the workpiece.
Note. Some chuck groove or mouth.
3.2
By means of hand force (eg. spanner) is clamped workpiece chuck.
3.3
Other means of a hydraulic, pneumatic or electrical power source is clamped workpiece chuck.
3.4
Having a clamping force to compensate the loss caused by the centrifugal force of the chuck system.
GB 23290-2009/ISO 16156.2004
3.5
For mounting the top jaw and radially moving parts.
3.6
Pawl mounted on the base and used directly in the parts holding the workpiece.
3.7
Each jaw algebraic single radial force is applied to the workpiece and.
3.8
Chuck clamping force before the operation.
3.9
The maximum clamping force when the input allowable maximum force (or torque) in the particular design and structure obtained.
3.10
When the actual clamping force of the chuck operation.
3.11
By means of a pneumatic or hydraulic cylinder driven chuck.
3.12
All parts in the radial direction caused by the rotation force tends to move away from the axis of rotation of the chuck.
Note. the centrifugal force (Fc) expressed in Newtons (N).
· Yi 2
·-Like (30)
(1)
Where.
[omega] --- moving parts (typically pawl) the angular velocity of the center of mass, in radians per second (rad/s);
Yi peripheral speed --- centroid moving parts (typically jaws), in meters per second (m/s);
--- like speed, in revolutions per minute (r/min).
3.13
Means the force applied to the chuck by an external power source.
3.14
Torque applied to the chuck mechanism by an external power source.
3.15
Rotating about the axis of the mass Ping Heng all the objects (any axis of rotation does not coincide with the center of mass of the unbalanced).
GB 23290-2009/ISO 16156.2004
3.16
Maximum speed specified by the manufacturer with standard chuck with jaws (see 6.2), in revolutions per minute (r/min).
3.17
Speed in the operating state (state w≤ shape max), in revolutions per minute (r/min).
4 dangerous form
The main danger.
--- squeeze danger;
--- winding danger;
--- inhalation hazard or danger involved;
--- shock hazard;
--- interchangeable or thrown dangerous moving parts.
And/or safety requirements measures 5
5.1 General
For the protection of all persons subjected to dangerous chuck design and construction to be adopted following the appropriate method.
a) the chuck and its power source (eg. cylinder) should match (see 6.1.9);
Random file b) shall be described manufacturer Ping Heng quality grade G (see GB/T 9239.1-2006);
c) should be prevented (e.g.,.) base jaw chuck thrown by centrifugal force the locking pin (see GB/T 15706.1-2007 of 3.23.6);
d) when the quality of the chuck than 20kg with measures to facilitate the move (eg. a screw hole) (see 6.1.1).
Verify. check the relevant drawings, inspection and type testing.
5.2 Special Requirements
For a centrifugal force compensating chuck, the manufacturer should be given the maximum speed like max.
The chuck having no centrifugal force compensation, and the use of a predetermined standard jaws maker, such as a given mass of hardtop pawl mounted on the base jaw
Corresponding to the predetermined time and positioned on the radius of gyration, the maximum speed should not exceed the calculated shape max measured total static clamping force reduction of 67%
Rotating speed.
Verification. check the relevant technical documentation.
5.2.1 Power Chuck
The chuck or the power source (eg. cylinder) should be installed to ensure efficient transfer of clamping force (eg. with the sensor before the end of the stroke) of the apparatus.
When the energy supply. (such as cylinder) failures, the safety device if the power provided by the source (eg. valve) at a predetermined pressure to ensure that the manufacturer should
Can be maintained over time to live (see EN982.1996 and/or EN983.1996).
Verify. check the relevant patterns and/or visual inspection.
5.2.2 chuck wrenches and similar tools
Manual gripping jaws or various wrenches and similar hand tools chuck should not be designed to stay on the rotation of the chuck. Wrenches and similar workers
With automatic pop-up spring against the anchor point should chuck is loosened, or when the insertion preventing rotation of the spindle (interlock means).
Verify. check the relevant drawings and/or a circuit diagram of a chuck and a test report or wrench.
5.2.3 opening having grooves or chuck
Having open slot or opening to the outer edge of the chuck to be provided safety devices (eg. a pin), to avoid the brake balance weight or the like by
Centrifugal force thrown from the mouth.
GB 23290-2009/ISO 16156.2004
Verify. check the relevant patterns and/or visual inspection.
6 Use Information
6.1 General
Instructions should include the following information (see GB/T 15706.2-2007 Chapter 5, especially 5.5).
6.1.1 correct use of the security information chuck comprising. operation (see EN1005-2.2003), performance, like the maximum speed max, the size, the necessary
Adjustment and mounting means allowing the clamping range and pressure force/power source.
6.1.2 provide a method for determining the clamping force, for the user to assess the suitability of using the chuck machining.
6.1.3 instructions provided with standard chuck jaw change (hard top jaws) during operation of the clamping force, so that the user can determine the dynamic clamping force.
6.1.4 at maximum radius and maximum speed allowed by the pawl/pawl maximum top quality.
The maximum distance between the centroid and the chuck pawl 6.1.5 clamping end surface.
6.1.6 Determination of providing special top jaw clamping force.
6.1.7 maintenance instructions include. lubrication and detect static clamping force explained interval.
6.1.8 interchangeable member information, refer to GB/T 23291-2009, JB/T 3860.2-1998 and ISO 3442.1991.
It illustrates the necessary connection form between a power source and a chuck 6.1.9.
6.1.10 quality chuck should kilograms (kg) units.
6.1.11 chuck and accessories should be consistent with existing national standards and industry standards.
Verify. Check the instruction manual.
6.2 Operating Instructions
Manufacturer's instructions for use should be in the following Chen Shu.
a) Although the chuck has met the specific requirements of Chapter 5, but the danger is still possible due to the nature of the workpiece and the machine produced. To eliminate risk
Users should consider the risk characteristics of the workpiece (such as. size, shape and quality) and the characteristics of the machine (eg. speed, feed and depth of cut
degree).
b) the user should be determined according to the desired machining the maximum clamping force the maximum allowed speed, and this speed can not exceed the chuck
spinning speed.
c) For special top jaws, the user should use the method according to the manufacturer specification provided to calculate the dynamic clamping force of the chuck.
d) in a certain time interval, according to the maintenance shall be described using a static clamping force measuring device to check its maintenance condition.
e) If you do not achieve satisfactory rotation Ping Heng quality, will likely residual danger.
f) In order to avoid overload of force for a particular cartridge, to reduce the effective force from the machine.
Verify. Check the instruction manual.
6.3 mark
Clamping cylinder and the chuck should be marked, when the top chuck jaw impact the corresponding function, the top jaws should also be labeled.
The following tag content should be durable and clearly evident.
6.3.1 chuck
--- the name or trademark of the manufacturer;
--- model or serial number;
--- maximum allowable input power or the maximum allowable input torque;
--- lubricated by the manufacturer instructions, and, when the maximum allowable input force (or torque) of the new measured maximum static chuck clamping force;
--- like the maximum speed max.
Verification. visual inspection.
6.3.2 Top pawl
--- the name or trademark of the manufacturer;
--- model or serial number.
GB 23290-2009/ISO 16156.2004
Verification. visual inspection.
6.3.3 clamping cylinder
--- the name or trademark of the manufacturer;
--- model or serial number;
--- like the maximum speed max;
--- Input/Output maximum operating force or energy.
Verification. visual inspection.
GB 23290-2009/ISO 16156.2004
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