ANSI B11.1-2009 Machine Tools - Safety Requirements for Mechanical Power Presses《机床.机械动力冲压机的安全要求》.pdf

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1、ANSI B11.12009 American National Standard for Machines Safety Requirements for Mechanical Power Presses Secretariat and Standards Developing Organization: The Association For Manufacturing Technology 7901 Westpark Drive McLean, VA 22102 Attn: Technology Department Approved: April 7, 2009 by the Amer

2、ican National Standards Institute Copyright B11 Standards Inc. (Formerly AMT) Provided by IHS under license with AMT sLicensee=IHS Employees/1111111001, User=Zhao, JocelynNot for Resale, 04/10/2011 20:06:36 MDTNo reproduction or networking permitted without license from IHS-,-,-Copyright B11 Standar

3、ds Inc. (Formerly AMT) Provided by IHS under license with AMT sLicensee=IHS Employees/1111111001, User=Zhao, JocelynNot for Resale, 04/10/2011 20:06:36 MDTNo reproduction or networking permitted without license from IHS-,-,-AMERICAN NATIONAL STANDARD B11.12009 2009 AMT 1 AMERICAN NATIONAL STANDARDS

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20、 AMT The Association For Manufacturing Technology 7901 Westpark Drive, McLean, VA 221024269, USA Copyright 2009 by AMT- The Association For Manufacturing Technology All rights reserved. Printed in the United States of America No part of this publication may be reproduced in any form, in an electroni

21、c retrieval system or otherwise, without the prior written permission of the publisher.Copyright B11 Standards Inc. (Formerly AMT) Provided by IHS under license with AMT sLicensee=IHS Employees/1111111001, User=Zhao, JocelynNot for Resale, 04/10/2011 20:06:36 MDTNo reproduction or networking permitt

22、ed without license from IHS-,-,-AMERICAN NATIONAL STANDARD B11.12009 2009 AMT 2 CONTENTS PAGE FOREWORD .4 EXPLANATION OF THE FORMAT, AND ANSI B11 CONVENTIONS.7 INTRODUCTION.8 1 10 SCOPE1.1 INCLUSIONS .10 1.2 10 EXCLUSIONS2 13 NORMATIVE REFERENCES2.1 .13 INFORMATIVE REFERENCES3 .15 DEFINITIONS4 28 RE

23、SPONSIBILITY4.1 28 SUPPLIER4.2 29 USER4.3 30 PERSONNEL5 .31 HAZARD CONTROL5.1 31 TASK AND HAZARD IDENTIFICATION5.2 32 RISK ASSESSMENT / RISK REDUCTION6 .34 DESIGN AND CONSTRUCTION6.1 GENERAL REQUIREMENTS ALL MACHINES34 6.2 35 ELECTRICAL REQUIREMENTS6.3 41 PRESSES USING FULLREVOLUTION CLUTCHES6.4 48

24、PRESSES USING PARTREVOLUTION CLUTCHES OR DIRECT DRIVE SYSTEMS6.5 62 MOTORIZED SLIDE ADJUSTMENT6.6 .62 SLIDE COUNTERBALANCE SYSTEMS6.7 AIRCONTROLLING EQUIPMENT 63 6.8 .63 PRESSURE VESSELS6.9 63 HYDRAULIC EQUIPMENT6.10 .63 FLUIDPOWERED DIECLAMPING SYSTEM6.11 .64 PERFORMANCE OF SAFETYRELATED FUNCTION(S

25、)6.12 64 STOPPINGPERFORMANCE MONITOR6.13 .66 SAFETY BLOCKS, SLIDE LOCKS OR OTHER DIE/SLIDE SUPPORT MEANS6.14 MOVING BOLSTERS68 6.15 SCRAP CHUTES.69 7 70 LAYOUT, INSTALLATION, TESTING AND START-UP FOR THE PRESS SYSTEM7.1 70 GENERAL7.2 71 LAYOUT7.3 INSTALLATION71 7.4 LOCK-OUT/TAG-OUT .71 8 .73 SAFEGUA

26、RDING8.1 73 HAZARDS ASSOCIATED WITH PRESS PRODUCTION SYSTEMS OTHER THAN POINT-OF-OPERATION HAZARDSCopyright B11 Standards Inc. (Formerly AMT) Provided by IHS under license with AMT sLicensee=IHS Employees/1111111001, User=Zhao, JocelynNot for Resale, 04/10/2011 20:06:36 MDTNo reproduction or network

27、ing permitted without license from IHS-,-,-AMERICAN NATIONAL STANDARD B11.12009 2009 AMT 3 8.2 74 HAZARDS ASSOCIATED WITH BROKEN OR FALLING COMPONENTS8.3 PERIMETER SAFEGUARDING74 8.4 77 POINT-OF-OPERATION SAFEGUARDING8.5 77 GUARDS8.6 .80 SAFEGUARDING DEVICES8.7 92 SAFEOPENING SAFEGUARDING8.8 .93 PER

28、FORMANCE OF THE SAFETYRELATED FUNCTION(S)9 .94 SETUP, OPERATION AND MAINTENANCE9.1 94 PROCEDURES9.2 94 DIE SET-UP9.3 .97 OPERATION9.4 100 INSPECTION AND MAINTENANCE9.5 101 TRAINING9.6 103 SUPERVISION9.7 ACCESS CONTROL104 9.8 MOVING BOLSTERS .102 10 105 ADDITIONAL REQUIREMENTS FOR PSDI OPERATION10.1

29、105 GENERAL10.2 .105 “PASS-THROUGH“ HAZARDS10.3 .105 MULTIPLE OPERATORS AND MULTIPLE PSDI ACTUATING CONTROLS10.4 .106 PRESENCE-SENSING DEVICE USED FOR PSDI10.5 PART SENSING DEVICE FOR PSDI.106 10.6 PSDI SYSTEM DOCUMENTATION .107 ANNEX A FIGURES.108 ANNEX B EXAMPLES OF TASK-BASED HAZARDS120 ANNEX C S

30、AFETY DISTANCE.124 ANNEX D DESIGN CONSIDERATIONS FOR POWER PRESS CONTROLS 133 ANNEX E DESIGN CONSIDERATIONS FOR MICROPROCESSOR-BASED CLUTCH/BRAKE CONTROLS.137 ANNEX F PERFORMANCE OF THE SAFETY-RELATED FUNCTION(S).139 ANNEX G FLOW CHARTS FOR MODE SELECTION AND INITIATION OR ENABLING .141 ANNEX H CHEC

31、K LIST146 ANNEX I TYPICAL DIE SETTING PROCEDURES.162 ANNEX J ANSI AIHA Z10.163 ANNEX K WEEKLY PRESS INSPECTION REPORT, CHECKLIST the size, thickness and kind of pieces to be worked; the design and construction of dies; the required accuracy of the finished work; the skill of operators; the length of

32、 run; and the method of feeding, including part and scrap removal. Because of these varying factors in the operations and in the workplace, a wide variety of pointofoperation safeguarding methods (guards and protective devices) has been covered in this standard. Pointofoperation safeguarding, the si

33、ngle most important factor in the elimination of injuries from presses, can only be determined by the user. A production system consists of the press as one component, dies (tooling) as another component, feeding methods (including part or scrap removal) as a third component, and pointofoperation sa

34、feguarding as the fourth component. The vital fourth component can be evaluated for effectiveness only after the first three components and operator involvements are known. Since this information is known only by the user, the responsibility for conformance with clause 8 has been assigned accordingl

35、y. The assignment of responsibility of the user for proper pointofoperation safeguarding has existed since the first B11.1 standard, approved in 1922. Mechanical power presses and associated equipment technologies are continuously evolving. This standard reflects the most commonly used and time-test

36、ed 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 area of this standard, in no way infers acceptance or rejection of such technologies. HISTORY The project on Safety Standard for Power

37、 Presses, B11, was initiated under the procedures of the American Engineering Standards Committee (which became the American Standards Association, the United States of America Standards Institute, and in 1969 the American National Standards Institute), with the National Safety Council as sponsor. T

38、he first standard, bearing the title Safety Code for Power Presses and Foot and Hand Presses, was developed by Sectional Committee B11 and was approved on November 13, 1922. Only two purposes of that “code“ were listed. The first and primary use was for state industrial commissions in developing the

39、ir workplace codes. The second use was as an operating guide for users operating press production systems. Revisions of the standard were issued on November 11, 1926; October 22, 1937; January 12, 1948; January 19, 1960; February 17, 1971; January 22, 1982; April 4, 1988; and November 6, 2001. The p

40、hilosophy underlying the 1971 standard was handsoutofdie operation (HOOD). After the adoption of the 1971 standard by ANSI and its reference by OSHA regulations, many users documented an absolute inability to meet the handsoutofdie objective. Accordingly, in 1974 OSHA modified the HOOD requirement,

41、and subsequent versions of the ANSI B11.1 standard incorporate that modification. However, HOOD should be considered in the application of the press production system, with appropriate Copyright B11 Standards Inc. (Formerly AMT) Provided by IHS under license with AMT sLicensee=IHS Employees/11111110

42、01, User=Zhao, JocelynNot for Resale, 04/10/2011 20:06:36 MDTNo reproduction or networking permitted without license from IHS-,-,-AMERICAN NATIONAL STANDARD B11.12009 2009 AMT 5safeguarding, to enhance the safe operation of mechanical power presses. In this 2009 edition of the standard, the B11.1 Su

43、bcommittee reviewed the B11.1 2001 standard to incorporate current mechanical power press safety practice, and to increase explanatory material related to the standard. New areas that have been added include requirements for risk assessment and risk reduction for increasingly complex automatic press

44、 production systems that may include tandem and transfer presses with use of perimeter safeguarding. In addition, new pressroom technology including direct drive servo presses has been incorporated. The current edition also integrates NFPA 79 requirements directly within the standard, including two

45、hand control and stop function requirements, moving parts (other than point-of-operation) and safeguarding supplier responsibilities. Finally, the current edition of ANSI B11.1 provided new requirements for slide locks, moving bolsters and scrap chutes. Subsequent to beginning the revision of B11.1,

46、 the ANSI B11 Accredited Standards Committee (ASC) authorized creation of an overarching (“A-level”) standard dealing with general safety requirements for the entire series of machines. ANSI B11 was approved in August 2008. Since B11.1 was already well into its revision at that point, the B11 ASC ag

47、reed to allow this current (2009) version of the ANSI B11.1 standard to proceed absent integration with the ANSI B11 “A-level” standard. Effective Date The following information on effective dates is informative guidance only, and not a normative part of this standard. The subcommittee recognizes th

48、at some period of time after the approval date on the title page of this document is necessary for suppliers and users to develop new designs, and/or modify existing designs or manufacturing processes in order to incorporate the new and/or revised requirements of this standard into their product development or production system. The subcommittee recommends that suppliers complete and implement design changes for new machine tools and machine tool systems within 30 months of the approval of this standard. The subcommittee recommends that users should evaluate whether an e