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Machine tools safety - Turning machines
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GB/T 41093-2021
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Basic data Standard ID | GB/T 41093-2021 (GB/T41093-2021) | Description (Translated English) | Machine tools safety - Turning machines | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | J53 | Word Count Estimation | 66,694 | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 41093-2021: Machine tools safety - Turning machines---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.
Machine tools safety -- Turning machines
ICS 25:080:10
CCSJ53
National Standards of People's Republic of China
Machine Tool Safety Lathe
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 3
3:1 General terms 3
3:2 Terms related to lathe components 4
3:3 Terms related to operating modes --- Mandatory and optional operating modes of lathe configuration 6
3:4 Terms related to lathe types and specifications 7
3:5 Terms related to the maximum permissible spindle speed and axis feed rate 12
4 List of major hazards12
4:1 General requirements 12
4:2 Main Hazardous Areas 13
4:3 Significant hazards and hazardous situations covered by this document13
5 Safety requirements and protective measures 17
5:1 General requirements 17
5:1:1 General 17
5:1:2 Characteristics to be satisfied by all types of lathe guards 18
5:2 Specific requirements for chapter 4 mechanical hazards 18
5:2:1 Class 1 machine tools 18
5:2:2 Type 2, 3 and 4 machine tools 19
5:2:3 Workholding Conditions 21
5:2:4 Machine operating modes 22
5:2:5 Optional equipment or additional equipment for lathes 25
5:3 Specific requirements for electrical hazards 27
5:4 Specific requirements for noise hazards 28
5:5 Specific requirements for radiation hazards 28
5:6 Specific requirements for materials or substances presenting a hazard28
5:7 Specific requirements for hazards arising from neglect of ergonomic principles 29
5:8 Specific requirements for hazards arising from abnormal starting, overload operation or overspeed 30
5:9 Specific requirements for hazards arising from changes in tool speed 32
5:10 Specific requirements for hazards arising from power failure 32
5:11 Specific requirements for hazards arising from control circuit failure 32
5:12 Specific requirements for hazards arising from incorrect installation 33
5:13 Specific requirements for hazards arising from the ejection of fluids or objects thrown out 33
5:13:1 General requirements 33
5:13:2 Guards for Class 3 Large Vertical Machine Tools (NC Lathes and Turning Centers) 34
5:13:3 Guards for large horizontal machine tools of category 3 (NC lathes and turning centers) 34
5:14 Specific requirements for hazards arising from lack of stability 35
5:15 Specific requirements for hazards arising from slipping, tipping and falling of persons 35
5:16 Verification of safety requirements and/or safeguards 35
6 Using Information 37
6:1 Signs 37
6:2 Instruction Manual 38
6:2:1 General requirements 38
6:2:2 Tools 39
6:2:3 Workholding 39
6:2:4 Machine functions obtained from the NC operation panel 39
6:2:5 Restart 39
6:2:6 Noise 39
6:2:7 Auxiliary loading and unloading equipment 40
6:2:8 Residual risks for equipment users to be aware of 40
6:2:9 Lathe installation instructions 41
6:2:10 Machine cleaning instructions 41
Appendix A (Normative) Impact Test Methods for Lathe Guards 42
Appendix B (Informative) Examples of Impact Test Equipment and Materials 46
Appendix C (Informative) Direct Impact Energy Calculation 48
Appendix D (Informative) Safety Function Checklist Example 50
Appendix E (Informative) Example of Exhaust (Smoke) and Fire Extinguishing System 52
Appendix F (Informative) Example of Determination of Performance Level of Interlocking Guards 56
References 60
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents"
drafted:
This document uses the redrafting method to modify the adoption of ISO 23125:2015 "Machine Safety Lathes":
Compared with ISO 23125:2015, the structure of this document has been adjusted as follows:
--- Added "3:3:1 Classification of Operation Modes", and changed "3:3:1, 3:3:2, 3:3:3, 3:3:4" of the original international standard to this document respectively
"3:3:2, 3:3:3, 3:3:4, 3:3:5": After the modification, there is no suspension segment, which conforms to the standard writing regulations:
--- Added "3:4:1 Lathe Type", and changed "3:4:1, 3:4:2, 3:4:3, 3:4:4, 3:4:5, 3:4:6" of the original international standard to this
"3:4:2, 3:4:3, 3:4:4, 3:4:5, 3:4:6, 3:4:7" of the file: After the modification, there is no suspension segment, which conforms to the standard writing regulations:
--- Added "5:2:4:4:1" article number, and changed "5:2:4:4:1, 5:2:4:4:2" in the original international standard to "5:2:4:4:2,
5:2:4:4:3": There is no suspension section after the modification, which is in line with the standards for writing:
The technical differences between this document and ISO 23125:2015 and their reasons are as follows:
--- Regarding normative reference documents, this document has made adjustments with technical differences to adapt to the technical conditions of our country and the circumstances of the adjustment:
The situation is reflected in Chapter 2 "Normative References", and the specific adjustments are as follows:
● Replace ISO 4413:2010 with GB/T 3766-2015 which has been modified to adopt international standards;
● Replace IEC 60204-1:2009 with GB/T 5226:1-2019 which is equivalent to adopting international standards;
● Replace ISO 14120:2002 with GB/T 8196-2018 which is equivalent to the international standard;
● Replace ISO 4871:1996 with GB/T 14574-2000 which is equivalent to international standard;
● Replace ISO 13850:2006 with GB/T 16754-2021 which is equivalent to the international standard;
● Replace ISO 13849-1:2006 with GB/T 16855:1-2018 which is equivalent to the international standard;
● Replace ISO 13849-2:2003 with GB/T 16855:2-2015 which is equivalent to the international standard;
● Replace ISO 447:1984 with GB/T 17161-1997 which is equivalent to adopting international standards;
● Replace ISO 13856-2:2005 with GB/T 17454:2-2017 which is equivalent to the international standard;
● Replace ISO 14122-1:2001 with GB/T 17888:1-2020 which is equivalent to adopting international standards;
● Replace ISO 14122-2:2001 with GB/T 17888:2-2020 which is equivalent to the international standard;
● Replace ISO 14122-3:2001 with GB/T 17888:3-2020 which is equivalent to adopting international standards;
● Replace ISO 14122-4:2004 with GB/T 17888:4-2020 which is equivalent to adopting international standards;
● Replace ISO 15534-1:2000 with non-equivalent GB/T 18717:1-2002 which adopts international standards;
● Replace ISO 15534-2:2000 with the non-equivalent GB/T 18717:2-2002 which adopts international standards;
● Replace ISO 14118:2000 with GB/T 19670-2005, which has been modified to adopt international standards;
● Replace ISO 13851:2002 with GB/T 19671-2005, which has been modified to adopt international standards;
● Replace ISO 14159:2002 with GB/T 19891-2005, which has been modified to adopt international standards;
● Replace EN1837:1999 with GB/T 28780-2012;
--- Deleted "EN954-1:1996" in the normative reference document, and added the "document number and content" of the document in the text
Deleted together [see Chapter 2, Chapter 3, 5:1:1, 5:8b)1), 5:11a), 5:11b)], because EN954-1:1996 is no longer applicable, now
The line GB/T 16855:1-2018 has covered its content;
--- Modify "EN954-1:1996, 3:2" to "GB/T 16855:1-2018, 3:1:2" (see 3:1:10), because EN954-1:1996
No longer applicable, the current GB/T 16855:1-2018 has covered its content;
--- Deleted "IEC 60529" in the normative reference document, because the number of the document in the main text is incorrect, which is inconsistent with its expression [(see
5:3a)2)];
--- References ISO 13732-1 and EN13478 moved into Chapter 2 Normative references:
The following editorial changes have been made to this document:
--- Modified the file name:
--- Change the "X" in the original international standard to "*" in this document and add a note (see 5:16), which is in line with our customs after the change:
--- Deleted the original international standard "Source: Reference [33]" (see Figure B:2 below): The content of this article is therefore irrelevant to this document:
--- Change "MTTFd and B10d" in the original international standard to "MTTFD and B10D" in this document respectively (see Appendix F): after change
Keep consistent with the symbols in the GB/T 16855:1-2018 standard:
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by China Machinery Industry Federation:
This document is under the jurisdiction of the National Standardization Technical Committee for Metal Cutting Machine Tools (SAC/TC22):
This document is drafted by: Shenyang Machine Tool (Group) Co:, Ltd:, National Machine Tool Quality Supervision and Inspection Center, Beijing Machine Tool Research Institute
Co:, Ltd:, Anyang Xinsheng Machine Tool Co:, Ltd:, General Technology Group Dalian Machine Tool Co:, Ltd:, Baoji Machine Tool Group Co:, Ltd:
The main drafters of this document: Wang Xinghai, Zhao Qinzhi, Gao Changcai, Li Li, Tan Zhi, Guo Jing, Zhang Wei, Chen Yanyan, Li Shulin, Qiao Baozhong,
Huang Jingxuan, Chen Jingwei, Li Yunsheng, Dong Jianjun, Wang Junning:
Machine Tool Safety Lathe
1 Scope
This document specifies requirements and methods for eliminating hazards or reducing risks in the design of the following types of metal cutting lathes and turning centers:
--- Class 1: Manually controlled lathes without numerical control functions:
--- Category 2: Manually controlled lathes with limited numerical control functions:
--- Category 3: CNC lathes and turning centers:
--- Category 4: single- or multi-spindle automatic lathes:
Note 1: See 3:4 for more detailed information on the classification of machine tools, and see 3:3 for the mandatory configuration and optional configuration of the operating mode:
Note 2: The requirements of this document generally apply to all types of lathes: If certain requirements only apply to a certain type of lathe, which type of lathe has been clearly indicated:
Note 3: Hazards from other metal cutting processes (such as grinding and laser processing) are described in other standards (see References):
The important risk factors listed in Chapter 4 of this document also apply to auxiliary equipment integrated with the machine tool (such as workpieces, tools and workpieces):
clamping devices, handling equipment and chip removal devices):
This document also applies to machine tools or turning cells integrated into automatic production lines, since the dangers and risks arising in this situation are different from the unique
The machine in the standing state is similar:
This document contains information about safety that is essential for the manufacturer to provide the user: See Figure 2 in GB/T 15706-2012,
Illustrate the responsibilities between the manufacturer and the user regarding operational safety:
It is the user's responsibility to detect certain hazards (eg fire and explosion) and minimize the critical risk factors associated with them (eg centralized control
whether the exhaust system is working properly):
Where other processing (milling, grinding, etc:) is involved, this document only mentions the basic content of safety requirements; see references for more details:
This document applies to machines manufactured after the release date:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 3766-2015 General rules and safety requirements for hydraulic transmission systems and their components (ISO 4413:2010, MOD)
GB/T 3767-2016 Acoustic sound pressure method for the determination of noise source sound power level and sound energy level of approximate free field above the reflecting surface
Cheng method (ISO 3744:2010, IDT)
GB/T 3768-2017 Determination of sound power level and sound energy level of noise source by acoustic sound pressure method using the envelope measurement surface above the reflecting surface
Simple method of (ISO 3746:2010, IDT)
GB/T 5226:1-2019 Mechanical and Electrical Safety Mechanical and Electrical Equipment Part 1: General Specifications (IEC 60204-1:
2016, IDT)
GB 7247:1-2012 Safety of Laser Products Part 1: Equipment Classification, Requirements (IEC 60825-1:2007, IDT)
GB/T 7932-2017 General rules and safety requirements for pneumatic systems and their components (ISO 4414:2010, IDT)
GB/T 8196-2018 General requirements for the design and manufacture of fixed and movable guards for mechanical safety guards
(ISO 14120:2015, IDT)
GB 11291:2-2013 Safety Requirements for Robots and Robotic Equipment Industrial Robots Part 2: Robot Systems and Sets
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