ANSI B11 9-2010 Machine Tools - Safety Requirements for Grinding Machines《机床 磨床的安全性要求》.pdf

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1、ANSI B11.9 2010 American National Standard for Machine Tools Safety Requirements for Grinding Machines Secretariat and Accredited Standards Developer: B11 Standards, Inc. 42293 Young Lane Leesburg, Virginia 20176 APPROVED: 17 NOVEMBER 2010 American National Standards Institute COPYRIGHT PROTECTED DO

2、CUMENT Copyright 2010 by B11 Standards, Inc. All rights reserved. Printed in the United States of America No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of B11 Standards, Inc. Copyright B11 Standards Inc

3、. (Formerly AMT) Provided by IHS under license with AMT .jLicensee=IHS Employees/1111111001, User=Zhao, Jocelyn Not for Resale, 04/10/2011 20:07:30 MDT No reproduction or networking permitted without license from IHS -,-,- B11 Standards, Inc. i AMERICAN NATIONAL STANDARDS By approving this American

4、National Standard, the ANSI Board of Standards Review confirms that the requirements for due process, consensus, balance and openness have been met by B11 Standards, Inc., (the ANSI-accredited standards developing organization). American National Standards are developed through a consensus process.

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18、y of the certifier or maker of the statement. NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this standard. You may contact the Sec

19、retariat for current status information on this, or other B11 standards. Individuals interested in obtaining up-to-date information on standards can access this information at http:www.nssn.org (or by contacting ANSI). NSSN - A National Resource for Global Standards, provides a central point to sear

20、ch for standards information from worldwide sources and can connect those who seek standards to those who supply them. Published by: B11 Standards, Inc., 42293 Young Lane, Leesburg, VA 20176, USA Copyright 2010 by B11 Standards Inc. All rights reserved. Printed in the United States of America Copyri

21、ght B11 Standards Inc. (Formerly AMT) Provided by IHS under license with AMT .jLicensee=IHS Employees/1111111001, User=Zhao, Jocelyn Not for Resale, 04/10/2011 20:07:30 MDT No reproduction or networking permitted without license from IHS -,-,- B11 Standards, Inc. ii Table of Contents FOREWORD . v In

22、troduction viii 1 Scope 1 1.1 Included machines 1 1.1.1 External cylindrical grinding machine . 1 1.1.2 Centerless external cylindrical grinding 1 1.1.3 Surface grinding machine peripheral grinding, reciprocating table, (horizontal spindle) 2 1.1.4 Surface grinding machine peripheral grinding, rotar

23、y table (horizontal spindle; table has a vertical axis of rotation) . 2 1.1.5 Surface grinding machine face grinding, reciprocating table (vertical spindle) 3 1.1.6 Surface grinding machine face grinding, rotary table (vertical spindle; table has a vertical axis of rotation) 3 1.1.7 Surface grinding

24、 face grinding, Double disc surface grinding machine (includes either horizontal or vertical spindle configurations) 3 1.1.8 Tool & cutter grinding machine peripheral and face grinding (includes multiple horizontal spindle configurations) . 3 1.1.9 Cutting-off machine (guillotine type) 4 1.1.10 Cutt

25、ing-off machine (chop-saw type) . 4 1.1.11 Cutting-off machine (workpiece translation type) 4 1.1.12 Bench, pedestal or floorstand grinding machine peripheral grinding 4 1.1.13 Pedestal grinding machine face grinding (horizontal spindle) 5 1.1.14 Swing frame grinding machine peripheral grinding/cutt

26、ing-off . 5 1.1.15 Automatic billet grinding machine surface grinding (high pressure) 5 1.2 Excluded machines . 6 2 References 6 2.1 Normative references 6 2.2 Informative references 7 3 Definitions 8 4 Responsibility .10 4.1 Supplier responsibilities . 10 4.2 User responsibilities . 10 4.3 Personne

27、l responsibilities 10 5 Risk assessment process 11 6 Design and construction 13 6.1 General requirements . 13 6.1.1 Hazards associated with moving parts (other than point of operation hazards) 13 6.1.2 Hazards associated with broken or falling components 13 6.1.3 Stored energy . 13 6.1.4 Exhaust pro

28、vision 13 6.1.5 Flanges 14 6.1.6 Offhand grinding machine work rests 14 6.1.7 Limiting abrasive product speed 14 6.1.8 Direction of machine spindle thread 14 Copyright B11 Standards Inc. (Formerly AMT) Provided by IHS under license with AMT .jLicensee=IHS Employees/1111111001, User=Zhao, Jocelyn Not

29、 for Resale, 04/10/2011 20:07:30 MDT No reproduction or networking permitted without license from IHS -,-,- B11 Standards, Inc. iii 6.1.9 Length of machine spindle thread 15 6.1.10 Size of spindle or mount 15 6.1.11 Directional arrows 15 6.1.12 Work driving and holding equipment . 15 6.1.13 Contact

30、with high-temperature components . 16 6.2 Electrical requirements . 16 6.2.1 Power . 16 6.2.2 Disconnect 16 6.2.3 Emergency stop 16 6.2.4 Voltage and grounds 16 6.2.5 Component failure 16 6.3 Operating control 17 6.3.1 General construction . 17 6.3.2 Identification . 17 6.3.3 Component location . 17

31、 6.3.4 Operating controls . 17 6.3.5 Direction of operation of controls 19 6.3.6 Hydraulic and pneumatic components 20 6.4 Abrasive product mounting . 20 6.4.1 General requirements for flanges . 20 6.4.2 General requirements for faceplates 21 6.4.3 Run-out for collets 21 6.5 Abrasive product speeds

32、. 21 7 Layout, installation, testing and start-up for the grinding system 22 7.1 General . 22 7.2 Layout 22 7.2.1 Production operations . 22 7.2.2 Set-up and maintenance 22 7.3 Installation 22 7.3.1 Foundation 22 7.3.2 Lifting of machine components 22 7.3.3 Anchoring 23 7.4 Lockout / tagout . 23 7.4

33、.1 Means 23 7.4.2 Procedure 23 7.4.3 Training . 23 7.4.4 Supervision . 23 7.5 Lighting 23 7.6 Testing and start-up 23 7.6.1 Procedures 23 7.6.2 Assigned personnel . 23 7.6.3 Safeguarding . 23 7.7 Speed check of machines users responsibility . 23 8 Safeguarding .24 8.1 Hazards associated with grindin

34、g machine operation, other than at the point of operation. . 25 8.1.1 Hazards to personnel associated with power transmission 25 8.1.2 Hazards to personnel associated with moving parts (exclusive of power Copyright B11 Standards Inc. (Formerly AMT) Provided by IHS under license with AMT .jLicensee=I

35、HS Employees/1111111001, User=Zhao, Jocelyn Not for Resale, 04/10/2011 20:07:30 MDT No reproduction or networking permitted without license from IHS -,-,- B11 Standards, Inc. iv transmission components) . 25 8.1.3 Hazards to personnel associated with flying particles and sparks originating from the

36、point of operation. 26 8.1.4 Hazards to personnel associated with unintended operation of grinding machines26 8.1.5 Hazards to personnel associated with the containment of fluids such as coolant, lubricant, and hydraulic fluid and compressed gas. 26 8.2 Hazards at the point of operation 27 8.3 Abras

37、ive product safeguarding . 27 8.3.1 General requirements 27 8.3.2 Abrasive product guard exposure angles . 27 8.3.3 Abrasive product guards . 32 8.3.4 Material requirements and minimum dimensions 33 8.3.5 Abrasive product guards with removable side covers 35 8.3.6 Band-type guards general specificat

38、ions . 36 9 Operation, maintenance and training 36 9.1 Operation and maintenance . 36 9.1.1 Use of abrasive products users responsibility 37 9.1.2 General maintenance . 37 9.1.3 Arbor size 37 9.1.4 Bushing . 37 9.1.5 Surface condition . 37 9.1.6 Machine face plate 37 9.1.7 Tightening of the mounting

39、 nut 39 9.1.8 Abrasive product guards . 40 9.1.9 Maintenance 40 9.2 Training 40 Annex A: Abrasive product guards, work zone enclosures and their combinations on stationary grinding machines . 1 Copyright B11 Standards Inc. (Formerly AMT) Provided by IHS under license with AMT .jLicensee=IHS Employee

40、s/1111111001, User=Zhao, Jocelyn Not for Resale, 04/10/2011 20:07:30 MDT No reproduction or networking permitted without license from IHS -,-,- B11 Standards, Inc. v FOREWORD This Foreword is informative and not part of the requirements of American National Standard B11.9-2010. The primary objective

41、 of this standard is to eliminate, control or reduce hazards to individuals associated with grinding machines by establishing requirements for the design, construction, installation, commissioning, operation, maintenance and decommissioning of these machines. To accomplish this objective, responsibi

42、lities have been assigned to the supplier (e.g., supplier, modifier, distributor, rebuilder and integrator), the user, and individuals in the working environment. The words “safe“ and “safety“ are not absolutes. An element of safety is attitude. While the objective of this standard is to eliminate,

43、control, or reduce hazards, this standard recognizes that hazards cannot be practically reduced to zero in any human activity. This standard is not intended to replace good judgment, proper training, and personal responsibility. Operator skill, job monotony, fatigue, and experience are safety factor

44、s that should be considered by the user. The original B11.9 Standard was approved in 1975, and has simply been reaffirmed periodically since then. This current standard began revision in 2005, closely collaborating with the ANSI B7.1 Committee. A memorandum of understanding was reached between the t

45、wo separate standards development committees that going forward, this B11.9 standard would address the safety requirements of the grinding machine only, and B7.1 would address the safety requirements of the abrasive product only (with the largest single area of overlap being the flange, mostly addre

46、ssed in B7.1). Technology for grinding machines is continuously evolving. This standard reflects the most commonly used and time-tested state of the art at the time of its approval. The inclusion or omission of language relative to any evolving technology, either in the requirements or explanatory a

47、rea of this standard, in no way infers acceptance or rejection of such technologies. This standard was processed and submitted for ANSI approval by the B11 Accredited Standards Committee on safety standards for machine tools. Committee approval of this standard does not necessarily imply that all co

48、mmittee members voted for its approval. At the time this document was approved as an American National Standard, the ANSI B11 Accredited Standards Committee was composed of the following member organizations: Inquiries with respect to the application of the substantive requirements of this standard

49、and suggestions for its improvement are welcomed and are to be sent to B11 Standards, Inc., 42293 Young Lane, Leesburg, Virginia 20176. Attention: B11 Secretariat. Effective Date The following is informative guidance only, and not a normative part of this standard. This Subcommittee recognizes that some period of time after the approv