1、BRITISH STANDARD BS3641-3: 1973 Incorporating Amendment Nos.1 and2 Specification for Symbols for machinetools Part 3: Additional general symbols UDC 003.62:621.9-777 CONFIRMED DECEMBER 2007BS3641-3:1973 This British Standard, having been approved by the MechanicalEngineering IndustryStandards Commit
2、tee,was published underthe authority of the Executive Board on 30 April1973 BSI07-1999 The following BSI references relate to the work on this standard: Committee reference MEE/6, MEE/6/18 Draft for comment 71/32671 ISBN 0 580 07640 7 Co-operating organizations The Mechanical Engineering Industry St
3、andards Committee, under whose supervision this British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: Associated Offices Technical Committee Engineering Equipment Users Association Association of Consulting E
4、ngineers Gas Council Association of Hydraulic Equipment Institution of Civil Engineers Manufacturers Ltd. Institution of Gas Engineers Association of Mining Electrical and Institution of Heating and Ventilating Mechanical Engineers Engineers British Compressed Air Society Institution of Mechanical E
5、ngineers* British Electrical and Allied Manufacturers Institution of Mechanical Engineers Association (Automobile Division) British Gear Manufacturers Association Institution of Plant Engineers British Internal Combustion Engine Institution of Production Engineers* Manufacturers Association Locomoti
6、ve and Allied Manufacturers British Mechanical Engineering Association of Great Britain Confederation London Transport Executive British Pump Manufacturers Association Machine Tool Trades Association* British Steel Industry Ministry of Defence Crown Agents for Oversea Governments and Ministry of Def
7、ence, Army Department* Administrations National Coal Board Department of Employment (H.M. Factory National Physical Laboratory Inspectorate) (Department of Trade and Industry) Department of the Environment* Process Plant Association Department of Trade and Industry Royal Institute of British Archite
8、cts Department of Trade and Industry Telecommunications Engineering National Engineering Laboratory* Manufacturing Association Electricity Council, the Central Electricity Water-tube Boilermakers Association Generating Board and the Area Boards in England and Wales The Government departments and ind
9、ustrial 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 BritishStandard: Association of Scientific Technical and Society of Motor Manufacturers and Managerial Staffs Traders Ltd. G
10、auge and Toolmaster Association Trades Union Congress Machine Tool Industry Research Association University of Aston in Birmingham Ministry of Defence, Air Force Department University of Manchester Institute of Science Ministry of Defence, Navy Department and Technology National Federation of Engine
11、ers Tool Ten individual experts Manufacturers Amendments issued since publication Amd. No. Date of issue Comments 1357 January1974 3976 June1982 Indicated by a sideline in the marginBS3641-3:1973 BSI 07-1999 i Contents Page Co-operative organizations Inside front cover Foreword ii 0 General 0.1 Scop
12、e 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 Grouping 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 A
13、ppendix A Example of the grouping of symbols 25 Figure 1 Balanced slide pressure (presses) 25 Publications referred to 26BS3641-3:1973 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
14、 the range of symbols in Part1 of the standard which deals with general mechanical symbols. Symbols associated with numerically controlled machine tools are given in Part2, “Numerical control”, of the standard. As this part of the standard is simply an addition to the list of symbols in Part1, “Gene
15、ral symbols”, it cannot be used effectively in isolation, but only in conjunction with the symbols in Part1. Symbols for lubrication systems are given in BS4412, “Lubrication symbols”. Where considered appropriate symbols have been adopted from other sources of ISO, IEC, and various British Standard
16、s. In general 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 stan
17、dard will be found to be generally acceptable in itself. This standard was amended in1982 to take account of the requirements of BS5378-1(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 s
18、tandard are intended primarily for purposes of operator information but where a symbol is used for safety reasons attention is drawn to BS5378-1. 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
19、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, pagesi andii, pages1 to26, an inside back cover and a back cover. This standard has been updated (see copyright date
20、) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS3641-3:1973 BSI 07-1999 1 0 General 0.1 Scope This British Standard specifies additions to the range of symbols given in BS3641-1. This British Standard specifies basic designs for s
21、ymbols 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 makes recommendations for proportions to be used in the design of symbols, independent of actual dimensions. This Bri
22、tish 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 symbols are given in Appendix A of BS3641-1 for guidance purposes. NOTEThe titles of the British Standards refered t
23、o 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 Part1, viz: Modes Elements Values Actions Status indications. 0.3 Numbering of symbols In this Part of this standa
24、rd, symbols are numbered by adding on serially to the symbols in Part1 of thestandard. This avoids the use of two different numbering systems for each part of the standard. 0.4 Sizes and proportions The symbols shown in this standard are accurately reproduced at basic size to a0.8mm grid. Where it i
25、snecessary to establish actual sizes then the symbols shown may be measured using a0.8mm transparentgrid. The absolute size of symbol is at the designers discretion and indeed it may be desirable to have symbols in two different basic sizes to achieve proper display balance; again, when using two di
26、fferent 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 reference grid of5 units by5 units where1 unit=0.8mm. Each symbol is built up so that, with only a few exceptions, the symbol is
27、circumscribed by rectangles which are modular with respect to the5 unit grid, e.g.5 10,10 15,10 40. The normal line thickness is0.8mm; where it has proved necessary to depart from the standard0.8mm line thickness this is immediately apparent. In certain symbols, points and circles need to appear in
28、contact with one another. However, if reproduced touching (no matter which method of reproduction is used) blurring of points and fusing of tangential circles would occur. To minimize these effects, certain symbols show a small but deliberate clearance of0.4unit between some of the constituent eleme
29、nts 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 consideration on its own. It rarely appears as an isolated element, but is frequently used as the basis for a symbol, or qualifies another symbo
30、l to give it additional meaning.BS 3641-3:1973 2 BSI 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
31、Grouping of symbols It is comparatively rare for a single 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 f
32、our sub headings. 1.1 Operating modes: major machining 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 appli
33、es is combined with the movement mode symbol. 1.3 Control 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
34、arrow is shown on the right, the important dimensions 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 ro
35、tational information, the perspective view being superimposed 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
36、 are used in pairs to define “in” (or towards) and “out” (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 e
37、ase of interpretation. It is inappropriate to use the 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
38、 a general label or heading for a further more detailed group of symbols, e.g. pump worktable start stop clockwise anticlockwise 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.BS3641-
39、3:1973 BSI 07-1999 3 1.1 Operating modes No. Designation Symbol Remarks 1.1.15 Blow moulding 1.1.16 External broaching 1.1.17 Internal broaching 1.1.18 Chain broaching 1.1.19 External cylindrical grinding 1.1.20 Plunge cut grindingBS 3641-3:1973 4 BSI 07-1999 1.1 Operating modes (continued) No. Desi
40、gnation Symbol Remarks 1.1.21 Internal cylindrical grinding 1.1.22 Cut-off grinding 1.1.23 Face grinding 1.1.24 Lapping 1.1.25 HoningBS3641-3:1973 BSI 07-1999 5 1.1 Operating modes (continued) No. Designation Symbol Remarks 1.1.26 Shearing/cutting 1.1.27 Bending/folding A particular type of tooling
41、may be added to this basic symbolBS 3641-3:1973 6 BSI 07-1999 1.3 Control modes No. Designation Symbol Remarks 1.3.29 Multi-man operation x=number of operators 1.3.30 Step-cycle A discrete element of a complete cycle operative in its own right Normally associated with testing or checkingBS3641-3:197
42、3 BSI 07-1999 7 1.4 Auxiliary modes No. Designation Symbol Remarks 1.4.24 Electrical instruction manual or diagram 1.4.25 Wall thickness of a preform 1.4.26 Ventilate blow die 1.4.27 Form dressing 1.4.28 Face dressing 1.4.29 Static balance BS 3641-3:1973 8 BSI 07-1999 1.4 Auxiliary modes (continued)
43、 No. Designation Symbol Remarks 1.4.30 Dynamic balance 1.4.31 Out of balanceBS3641-3:1973 BSI 07-1999 9 Section 2. Elements The elements refer to identifiable machine parts associated with either the main machining operation or auxiliary operations associated with material handling or control system
44、s. 2.1 Mechanical elements No. Designation Symbol Remarks 2.1.33 Blow moulding die 2.1.34 Blow needle for blow moulding machine 2.1.35 Blow mandrel for blow moulding machine 2.1.36 Moulded form 2.1.37 Injection cylinder (basic element) 2.1.38 Injection cylinder with plungerBS 3641-3:1973 10 BSI 07-1
45、999 2.1 Mechanical elements (continued) No. Designation Symbol Remarks 2.1.39 Screw injection cylinders 2.1.40 Gripper finger type (mechanical handling) 2.1.41 Cutter block Alternative symbol 2.1.42 Circular saw 2.1.43 Roller 2.1.44 Sanding discsBS3641-3:1973 BSI 07-1999 11 2.1 Mechanical elements (
46、continued) No. Designation Symbol Remarks 2.1.45 Sanding drum 2.1.46 Sanding band 2.1.47 Polishing/wheel/disc/mop buffing 2.1.48 Rotary brush 2.1.49 Conveyor 2.1.50 Chain (transmission) 2.1.51 Linear saw (e.g.blade or band saw)BS 3641-3:1973 12 BSI 07-1999 2.1 Mechanical elements (continued) No. Des
47、ignation Symbol Remarks 2.1.52 Chain saw 2.1.53 Guard This symbol shall not be altered beyond recognition. It may be qualified to depict particular types of guard. Guard shall be coloured red in accordance with BS381C/537 signal red matt. Caution symbol shall be coloured black. 2.1.54 Fly-wheel 2.1.
48、55 Slide (presses) Slide (other uses) 2.1.56 Pressure cushion (forpresses) 2.1.57 Strip feed rollersBS3641-3:1973 BSI 07-1999 13 2.1 Mechanical elements (continued) No. Designation Symbol Remarks 2.1.58 Broach (basic symbol internal and external) 2.1.59 Broach puller 2.1.60 Broach retriever 2.1.61 A
49、brasive wheel (basicsymbol) 2.1.62 Workhead 2.1.63 Tail stock 2.1.64 Work steadyBS 3641-3:1973 14 BSI 07-1999 2.1 Mechanical elements (continued) No. Designation Symbol Remarks 2.1.65 Fixture 2.1.66 Clamp 2.1.67 Swarf 2.1.68 Eyebolt 2.1.69 Pulley May be used to indicate speed changing devices e.g.on a grinding machine AlternativeBS3641-3:1973 BSI 07-1999 15 2.3 Auxiliary elements No. Designation Symbol Remarks 2.3.1 aSwitch 2.3.2 a Limit switch 2.3.3 a Push button 2.3.4 a Pressure switch Setting values may be added. 2.3.5 aThermostat Tempe
