1、AMERICAN NATIONAL STANDARD Spindle Noses and Tool Shanks for Milling Machines ANSI B5.18 - 1972 (REVISION OF 85.18-1960) FOR CURRENT COMMllTEE PERSONNEL PLEASE SEE ASME MANUAL AS-I 1 SOCIETY OF AUTOMOTIVE ENGINEERS SOCIETY OF MANUFACTURING ENGINEERS NATIONAL MACHINE TOOL BUILDERS ASSOCIATION THE AME
2、RICAN SOCIETY OF MECHANICAL ENGINEERS PUBLISHED BY THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS United Engineering Center 345 East 47th Street New York, N. Y. 1001 7 Any part of this standard may be quoted. Credit lines should read: “Extracted from American National Standard Spindle Noses and Tool S
3、hanks for Milling Ma- chines” (ANSI B5.18-1972), with the permission of the publisher, The American Society of Mechanical Engineers, United Engineering Center, 345 East 47th Street, New York, N.Y. 10017. THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS Copyright, 0, 1972, by Printed in U.S.A. FOREWORD T
4、he first edition of this standard, known as B5.18-1943, resulted from inten- sive efforts dating back to 1926 by a special group of milling machine manufac- tures; it was reaffirmed in 1949, revised in 1953 and again in 1960. ASA B5.18-1960 incorporated several changes and corrections. It also inclu
5、ded a new spindle nose size, designated as 50 A, suggested by the Society of Manufacturing Engineers and several recommendations made by a special committee of fifteen milling machine manufacturers appointed by the National Tool Builders Associa- tion. The revised standard reflected accurately the a
6、ctual practice at this period of time. This revision is based on the recommendations of the Technical Committee No. 33 of the American National Standards Committee B5 for Standardization of Machine Tools, Components, Elements, Performance, and Equipment. It updates the 1960 standards; incorporates s
7、everal recommendations made by members of industry as users and by machine tool builders; it follows the Decimal Inch practice accordingto ASA B87.1-1965. Several notes have been added, tolerances more clearly defined and conformity with pertinent American National Standards obtained. The true posit
8、ion dimensions and symbols contained herein are based on American National Standard Y14.5-1966 “ Dimensioning and Tolerancing for Engineering Drawings.” Upon the suggestion of the International Organization for Standardization (ISO) a No. 45 size number of spindle nose and tool shank has been added
9、to meet a need for an intermediate size between the 40 and 50 size numbers. The draft of the proposed revision was submitted to the Technical Com- mittee No. 33 for final review and comments. The, final draft of the proposed revision was processed according to the established procedures of ANSI; it
10、was voted on by letter ballot, approved by the American National Standards Institute on August 22, 1972 as ANSI B5.18-1972. iii AMERICAN NATIONAL STANDARDS COMMITTEE 85 MACHINE TOOLS, COMPONENTS, ELEMENTS, PERFORMANCE AND EQUl PMENT (The following is the roster of the Committee at the time of approv
11、al of this standard) OFFICERS W. L. McConn, Chairman A. W. Colton, Vice-Chairman, Group A C. C. Blake, Vice-Chairman, Group E *Paul Ackermonn, Vice-Chairman, Group C Harold Cooper, Vice-Chairman, Group D E. J. Loeffler, Secretary STANDARDS COMMITTEE AMERICAN SOCIETY OF MECHANICAL ENGINEERS F. Steele
12、 Blackall, 111, The Taft-Pierce ManufacturingCompany, Woonsocket, Rhode Island C. T. Blake, The Warner & Swasey Company, Cleveland, Ohio W. L. McCann, Giddings & Lewis Inc., Fond du Lac, Wisconsin DEFENSE INDUSTRIAL PLANT EQUIPMENT CENTER W. J. Taylor, Memphis, Tennessee R. T. Hoffman, Alternate, Me
13、mphis, Tennessee NATIONAL MACHINE TOOL BUILDERS ASSOCIATION Charles Brien, Bullard Company, Bridgeport, Connecticut E. J. Loeffler, National Machine Tool Builders Assn., McLean, Virginia E. A. Munschauer, Jr., Niagara Machine & Tool Works, Buffalo, New York SOCKET SCREW PRODUCTS BUREAU Pau/ Pick, Al
14、len Manufacturing Company, Hartford, Connecticut A. J. McLaren, The Cross Company, Fraser,Pkchigan W. H. Seacord, International Harvester Company, Hinsdale. Illinois Richard Push, Jones 86 Lamson Division of Waterbury Farrell, Springfield, Vermont J. J. Fickers, Alternate, Westinghouse Electric Corp
15、oration, Mansfield, Ohio SOCIETY OF AUTOMOrIVE ENGINEERS SOCIETY OF MANUFACTURING ENGINEERS TELEPHONEGROUP M. C. Berryman, Western Electric Company, Inc., Chicago, Illinois 5. P. Rogacki, Alternate, Western Electric Company, Inc., Kearney, New Jersey U.S. DEPARTMENT OF THE ARMY R. K. Freeman, Liaiso
16、n, U.S. Army Weapons Command, Rock Island, Illinois IJ. N. Segura, Liaison, Alternote, U.S. Army Weapons Command, Rock Island, Illinois U.S. DEPARTMENT OF COMMERCE W. 0. Bottarniller, (deceased) National Bureau of Standards, Washington, D.C. J. N. Cornette, Liaison, Navd Ship Systems Command, Washin
17、gton, DX. US. DEPARTMENT OF THE NAVY INDIVIDUAL MEMBERS Paul Ackermann, Cincinnati Milacron, Cincinnati, Ohio F. P. Brown, Vienna, Virginia Arthur Colton, Grosse Point Woods, Michigan Harold Cooper, Chrysler Corporation, Detroit, Michigan H. J. Moffatt, Caterpillar Tractor Company, East Peoria, Illi
18、nois Vice-Chairman concerned with preparation of this Standard. iv PERSONNEL OF TECHNICAL COMMITTEE 33 SPINDLE NOSES AND TOOL SHANKS FOR MILLING MACHINES B. R. Better, Choirman, Bendix Industrial Tool Division, 1901 S. Rockwell Street, K. H. Coleman, Lockheed Aircraft Corporation, Burbank Division,
19、Burbank, California W. T. Forward, Farrel Corporation, Rochester, New York A. D. Gunderson, Kearny Lk Trecker corporation, Milwaukee, Wisconsin J. 0. Snyder, (MATF), AF Material.Laboratory, Wright-Patterson AFB, Ohio J. c. Storncs, General Dynamica Corporation, Fort Worth, Texas A. W: Todd, Van Norm
20、an Machine Company, Springfield, Massachusetts E. L. Watelct, Brown & Sharpe Manufacturing Company, North Kingstown, Rhode Island R. 5. Zopf, Western Electric Company, Hawthorn Works, Chicago, Illidois Chicago, Illinois CONSULTING MEMBERS C. A. Porskc, Keamey & Trecker Corporation, Milwaukee, Wiscon
21、sin Tom Ribich, Weldon Tool Company, Cleveland, Ohio V CONTENTS Page Figure 1 Pilot Lead on Centering Plugs for Flatback Cutters . 7 Table 1 Essential Dimensions of Spindle Nose . 2 Table 2 Essential Dimensions for Tool Shanks . 4 Table 3 Dimensions of Draw-in Bolt Ends . 6 Table 4 Essential Dimensi
22、ons of Spindle Nose with Large Flange . 8 vi ANSI 65.18-1972 AMERICAN NATIONAL STANDARD SPINDLE NOSES AND TOOL SHANKS FOR MILLING MACHINES 1 FACE OF COLUMN 9 ZN k 500 INCH PER STEEP MACHI MAX VARIATION FROM GAGE LINE - r r z G) kF+ KEYSEAT KEY CONSTRUCTION OPTIONAL PREFERRED KEY CONSTRUCTION Table 1
23、. Etsemtlal Dimensions Of Spindle Nose IN SLOT WHEN USED E? . E s N Size Number 30 40 W 45 50 60 1.250 1.750 2.250 2.750 4.250 Diameter of Spindle B 2.7493 2.7488 3.4993 3.4988 3.9993 3.9988 5.0618 5.0613 8.7180 8.7175 - Table 1. Essential Dimensions Of Spindle Nose (cont.) Clearance Minimum Hole fo
24、r Dimension Pilot Draw-in Spindle Diameter I Bolt I End to Min. Column C ID/E 0692 0.997 0.685 0.50 0.66 2.37 1 L50 1.38 2.381 1.559 0.75 1.06 1568 1.278 0.62 0.78 1286 0.62 0.66 .05 Width of Driving Key F 0.6255 0.6252 0.6255 0.6252 0.7505 0.7502 1.0006 1.0002 1.0006 1.0002 - Width of Keyseat F 0.6
25、24 0.625 0.624 0.625 0.749 0.7 50 0.999 1.000 0.999 1.000 - Ybximum of Depth of Driving Keyseat Key G G 0.31 0.31 0.31 0.31 0.38 0.38 0.50 0.50 0.50 0.50 listance from Center to Driving Keys H 0.660 0.654 0.910 0.Y 04 1.160 1.154 1.410 1.404 3,420 2.414 - Radius of Bo1 t Hole Circle J 1.0625 :Note 1
26、) 1.3125 :Note 1) L 500 :Note 1) 2.000 :Note 2) 3.500 :Note 2) - All dimensions are given in inches. TOLERANCES: Two digit decimal dimensions ko.010 unless otherwise specified. F F A - %e plug gages listed in ANSI B5.10-1963-Table-13. - Centrality of Keyway with axis of taper 0,002 total at maximum
27、material condition. (0.002 Total Indicator Variation) -Centrality of solid key with axis of taper 0.002 total at maximum material condition. (0.002 Total Indicator Variation) , Taper: Tolerance on rate of taper to be 0.001 inch per foot applied only in direction which decreases rate of taper. Size n
28、umber 45 dimensions from ANSI 85.40-1968 Appendix-Table A3-Page 19. NOTE 1 - Holes spaced as shown and located within 0.006 Dia of true position NOTE 2 - Holes spaced as shown and located within 0.010 Dia of true position NOTE 3 - Maximum turnout on test plug 0.0004 at 1“ projection from gage line 0
29、.0010 at 12“ projection from gage line NOTE 4 - Squareness of mounting face measured near mounting bolt hole circle Size of Threads for Bo1 t Holes UNC-PB K 8.375-16 - 1.500-13 1.500- 13 .625-11 .750-10 Full Depth of Arbor Hole in Spindle Min. L 2.88 3.88 4.75 5.50 8.62 - - 3 r 0.62 0.81 0.81 5 4 1.
30、00 L 25 z 0 0 I D 2, - AMERICAN NATIONAL STANDARD SPINDLE NOES AND TOOL SHANKS FOR MILLING MACHINES ANS I B5.16-1972 4 AMERICAN NATIONAL STANDARD SPINDLE NOSES AND TOOL SHANKS FOR MILLING MACHINES ANSI 85.18-1972 5 AMERICAN NATIONAL STANDARD SPINDLE NOSES AND TOOL SHANKS FOR MILLING MACHINES LC- ANS
31、I 65.18-1972 Table 3. Dimensions of Draw-in Bolt Ends for Small End for Large End Usable Thread on Thread at Small End Size Number Size of Thread Size of Thread Length of Length of Usable Length of Small End UNC-2A UNC-SA Large Diameter A D M C B 30 0.500 - 13 0.625 - 11 1.12 1 .oo 1.25 40 0.375 - 1
32、6 0.500 - 13 0.75 0.75 1.06 45 1,000 - 8 1.250 - 7 2.00 1.37 1.75 60 0.625 - 11 1.000 - 8 1.38 1.25 1.50 50 0.625.- 11 0.750 - 10 1 25 1.12 1.50 All dimensions are given in inches. 6 AMERICAN NATIONAL STANDARD SPINDLE NOSES AND TOOL SHANKS FOR MILLING MACHINES ANSI 65.18-1972 - FACE OF SPINDLE , AME
33、RICAN 031254 MAX LEAD DIA = MAX STANDARD MIN LEAD DIA = MIN TAPER 3.5001NCH PER FT All dimensions are given in inches. FIG. 1 PILOT LEAD ON CENTERING PLUGS FOR FLATBACK CUTTERS PILOT PILOT DIA DIA .003 .006 AMERICAN NATIONAL STANDARD SPINDLE NOSES AND TOOL SHANKS FOR MILLING MACHINES ANSI BS.18-1972 OSO zoool SLO 901 63.1 9ooo. ggsq I wos Intentionally left blank Intentionally left blank
