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1、BRITISH STANDARD BS 3641-3: 1973 Incorporating Amendment Nos. 1 and 2 Specification for Symbols for machine tools Part 3: Additional general symbols UDC 003.62:621.9-777 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 This Bri
2、tish Standard, having been approved by the Mechanical Engineering Industry Standards Committee, was published under the authority of the Executive Board on 30 April 1973 BSI 07-1999 The following BSI references relate to the work on this standard: Committee reference MEE/6, MEE/6/18 Draft for commen
3、t 71/32671 ISBN 0 580 07640 7 Co-operating organizations The Mechanical Engineering Industry Standards Committee, under whose supervision this British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: Associated
4、Offices Technical CommitteeEngineering Equipment Users Association Association of Consulting EngineersGas Council Association of Hydraulic Equipment Institution of Civil Engineers Manufacturers Ltd.Institution of Gas Engineers Association of Mining Electrical and Institution of Heating and Ventilati
5、ng Mechanical EngineersEngineers British Compressed Air SocietyInstitution of Mechanical Engineers* British Electrical and Allied Manufacturers Institution of Mechanical Engineers Association (Automobile Division) British Gear Manufacturers AssociationInstitution of Plant Engineers British Internal
6、Combustion Engine Institution of Production Engineers* Manufacturers AssociationLocomotive and Allied Manufacturers British Mechanical Engineering Association of Great Britain ConfederationLondon Transport Executive British Pump Manufacturers AssociationMachine Tool Trades Association* British Steel
7、 IndustryMinistry of Defence Crown Agents for Oversea Governments andMinistry of Defence, Army Department* AdministrationsNational Coal Board Department of Employment (H.M. Factory National Physical Laboratory Inspectorate)(Department of Trade and Industry) Department of the Environment*Process Plan
8、t Association Department of Trade and IndustryRoyal Institute of British Architects Department of Trade and Industry Telecommunications Engineering National Engineering Laboratory*Manufacturing Association Electricity Council, the Central Electricity Water-tube Boilermakers Association Generating Bo
9、ard and the Area Boards in England and Wales The Government departments and industrial organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this British Standard: Association of Scientific T
10、echnical andSociety of Motor Manufacturers and Managerial StaffsTraders Ltd. Gauge and Toolmaster AssociationTrades Union Congress Machine Tool Industry Research AssociationUniversity of Aston in Birmingham Ministry of Defence, Air Force DepartmentUniversity of Manchester Institute of Science Minist
11、ry of Defence, Navy Departmentand Technology National Federation of Engineers ToolTen individual experts Manufacturers Amendments issued since publication Amd. No.Date of issueComments 1357January 1974 3976June 1982Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Wed
12、 Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 BSI 07-1999 i Contents Page Co-operative organizations Inside front cover Foreword ii 0 General 0.1 Scope 1 0.2 Classification scheme 1 0.3 Numbering of symbols 1 0.4 Sizes and proportions 1 0.5 The use of the arrow 1 0.6 Gro
13、uping of symbols 2 Section 1. Modes 2 Section 2. Elements 9 Section 3. Values 17 Section 4. Actions 18 Section 5. Safety and status indications 19 Section 6. Compound symbols 20 Appendix A Example of the grouping of symbols 25 Figure 1 Balanced slide pressure (presses) 25 Publications referred to 26
14、 Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 ii BSI 07-1999 Foreword This British Standard has been prepared under the authority of the Mechanical Engineering Industry Standards Committee. It is an extension to the range o
15、f symbols in Part 1 of the standard which deals with general mechanical symbols. Symbols associated with numerically controlled machine tools are given in Part 2, “Numerical control”, of the standard. As this part of the standard is simply an addition to the list of symbols in Part 1, “General symbo
16、ls”, it cannot be used effectively in isolation, but only in conjunction with the symbols in Part 1. Symbols for lubrication systems are given in BS 4412, “Lubrication symbols”. Where considered appropriate symbols have been adopted from other sources of ISO, IEC, and various British Standards. In g
17、eneral it should be appreciated that symbols may be modified to conform more closely with the specific part of the machine with which they are associated. It is hoped that in normal use however, in order to promote ready recognition of symbols by machine operators, the form shown in this standard wi
18、ll be found to be generally acceptable in itself. This standard was amended in 1982 to take account of the requirements of BS 5378-1 (1980) and the Safety Signs Regulations, 1980 (S.I. 1980, No. 1471), because machine tools are used in places of work where these regulations apply. Symbols in this st
19、andard are intended primarily for purposes of operator information but where a symbol is used for safety reasons attention is drawn to BS 5378-1. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct ap
20、plication. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 26, an inside back cover and a back cover. This standard has been updated (see copyright
21、date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 BSI 07-19991 0 General 0.1 Scope This British Standard sp
22、ecifies additions to the range of symbols given in BS 3641-1. This British Standard specifies basic designs for symbols intended for use on machine tools. Drawings in this British Standard relate to the form of symbols only and are not absolute dimensional representations. This British Standard make
23、s recommendations for proportions to be used in the design of symbols, independent of actual dimensions. This British Standard provides for the grouping together of symbols selected from the same or different sections of the standard according to individual requirements. Examples of groupings of sym
24、bols are given in Appendix A of BS 3641-1 for guidance purposes. NOTEThe titles of the British Standards refered to in this standard are listed on the inside back cover. 0.2 Classification scheme The classification scheme adopted for symbols in this part of the standard extends that already used in
25、Part 1, viz: Modes Elements Values Actions Status indications. 0.3 Numbering of symbols In this Part of this standard, symbols are numbered by adding on serially to the symbols in Part 1 of the standard. This avoids the use of two different numbering systems for each part of the standard. 0.4 Sizes
26、and proportions The symbols shown in this standard are accurately reproduced at basic size to a 0.8 mm grid. Where it is necessary to establish actual sizes then the symbols shown may be measured using a 0.8 mm transparent grid. The absolute size of symbol is at the designers discretion and indeed i
27、t may be desirable to have symbols in two different basic sizes to achieve proper display balance; again, when using two different basic sizes the proportions shown here will give a consistent appearance within each of the two size ranges selected. The symbols have been designed using a basic refere
28、nce grid of 5 units by 5 units where 1 unit = 0.8 mm. Each symbol is built up so that, with only a few exceptions, the symbol is circumscribed by rectangles which are modular with respect to the 5 unit grid, e.g. 5 10, 10 15, 10 40. The normal line thickness is 0.8 mm; where it has proved necessary
29、to depart from the standard 0.8 mm line thickness this is immediately apparent. In certain symbols, points and circles need to appear in contact with one another. However, if reproduced touching (no matter which method of reproduction is used) blurring of points and fusing of tangential circles woul
30、d occur. To minimize these effects, certain symbols show a small but deliberate clearance of 0.4 unit between some of the constituent elements of the symbol. 0.5 The use of the arrow The arrow shape is a unique symbol in relation to all of the symbols in this standard and thus deserves special consi
31、deration on its own. It rarely appears as an isolated element, but is frequently used as the basis for a symbol, or qualifies another symbol to give it additional meaning. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 2 BSI
32、07-1999 There are four different applications using the arrow shape and it is desirable to use a different form in each of these instances: directional information, dimensional information, relative motion information, functional information. 0.6 Grouping of symbols It is comparatively rare for a si
33、ngle symbol to be used in isolation and the grouping of symbols on displays is implicit in their application. These groupings generally fall into one of three types of association: List of symbols Section 1. Modes The modes are categorized under four sub headings. 1.1 Operating modes: major machinin
34、g functions. 1.2 Movement modes: defining the nature of linear and rotational motions. The direction in space is derived from the primary definition of directions in the introductory section and the element, symbol to which the movement mode applies is combined with the movement mode symbol. 1.3 Con
35、trol modes: these define the manner in which the machine or element is controlled. 1.4 Auxiliary modes: these define subfunctions which support major machining functions. 0.5.1 Directional information arrows. The recommended form of a directional arrow is shown on the right, the important dimensions
36、 being the shape and proportion of the head and the associated width of the shaft. Overall length is not crucial and may be varied to accommodate situations where the arrow is graphically combined with other symbol parts. The curved form is for rotational information, the perspective view being supe
37、rimposed on a shaft representation. 0.5.2 Relative motion information. Where it is not possible to define exactly the direction in space it is often useful to define relative motion between two machine parts; in this case the truncated arrow heads are used in pairs to define “in” (or towards) and “o
38、ut” (away from). 0.5.3 Dimension arrows. For symbols where dimensional concepts are required, an open headed arrow with no shaft is used. 0.5.4 Functional arrows. Many symbols require a functional dynamic in the form of an arrow to improve their ease of interpretation. It is inappropriate to use the
39、 same arrow form as is used to define spatial directions, as the arrow shown on such symbols need not imply a specific direction. A heavier, bolder form of functional arrow is used in these cases. 1) Hierarchical arrangements. One symbol serves as a general label or heading for a further more detail
40、ed group of symbols, e.g.pumpworktable start stopclockwiseanticlockwise 2) Pairing of symbols to build more complex symbols, e.g. transverse feed; engage tracer 3) Association of symbol with value or quantity, e.g. feed mm per revolution. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:06:
41、50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 BSI 07-19993 1.1 Operating modes No.DesignationSymbolRemarks 1.1.15 Blow moulding 1.1.16External broaching 1.1.17Internal broaching 1.1.18Chain broaching 1.1.19 External cylindrical grinding 1.1.20Plunge cut grinding Licensed Copy: sheffie
42、ldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 4 BSI 07-1999 1.1 Operating modes (continued) No.DesignationSymbolRemarks 1.1.21Internal cylindrical grinding 1.1.22Cut-off grinding 1.1.23Face grinding 1.1.24 Lapping 1.1.25Honing Licensed Copy: shef
43、fieldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 BSI 07-19995 1.1 Operating modes (continued) No.DesignationSymbolRemarks 1.1.26Shearing/cutting 1.1.27Bending/foldingA particular type of tooling may be added to this basic symbol Licensed Copy: sh
44、effieldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 6 BSI 07-1999 1.3 Control modes No.DesignationSymbolRemarks 1.3.29 Multi-man operation x = number of operators 1.3.30Step-cycleA discrete element of a complete cycle operative in its own right No
45、rmally associated with testing or checking Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 BSI 07-19997 1.4 Auxiliary modes No.DesignationSymbolRemarks 1.4.24 Electrical instruction manual or diagram 1.4.25Wall thickness of a
46、preform 1.4.26Ventilate blow die 1.4.27Form dressing 1.4.28Face dressing 1.4.29 Static balance Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 8 BSI 07-1999 1.4 Auxiliary modes (continued) No.DesignationSymbolRemarks 1.4.30Dyn
47、amic balance 1.4.31Out of balance Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 BSI 07-19999 Section 2. Elements The elements refer to identifiable machine parts associated with either the main machining operation or auxilia
48、ry operations associated with material handling or control systems. 2.1 Mechanical elements No.DesignationSymbolRemarks 2.1.33 Blow moulding die 2.1.34Blow needle for blow moulding machine 2.1.35Blow mandrel for blow moulding machine 2.1.36Moulded form 2.1.37 Injection cylinder (basic element) 2.1.3
49、8Injection cylinder with plunger Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 10 BSI 07-1999 2.1 Mechanical elements (continued) No.DesignationSymbolRemarks 2.1.39Screw injection cylinders 2.1.40Gripper finger type (mechanical handling) 2.1.41Cutter block Alternative symbol 2.1.42 Circular saw 2.1.43Roller 2.1.44Sanding discs Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 03:06:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 3641-3:1973 BSI 07-199911 2.1 Mech
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