1、MIL-U-4785 34 W 7779706 02Li3425 2 9 III GM785 (us) 30 IJaFch i954 Superseding . No. 50258 11 November 1937 MILITARY SPECIFICATION ,JNG MACRINE, VERTICAL, FIXXX1 MOWIZD 1. scorn 1.1 Scope.- This specification covers both medium and heavy duty, high-speed, vertical milling machines, electric-motor dr
2、iven, floor mounted, I with equipment and accessories as described herein at the option of the procuring agency. (See 6.2) 1.2 Classification.- Vertical milling machines shall be of the following types, classes and sizes, as specified (see 6.2). Type I - Medium Duty Class 1 - Non-suiveling spindle h
3、ead. (Table I) Size 2 - Table sim, 49 inches by 10 inches Size 3 - Table size, 62 inches by 13 inches Size 4 - Table size, 74 inches by 15 inches Class 2 - Swiveling spindle head (Table II) Sim 2 - Table size, 49 inches by 10 inches Typ TI - Heavy Duty (Table I) Size 2 - Table size, 52 inches by 12
4、inches Size 3 - Table size, 64 inches by 15 inches Size 4 - Table sim, 80 inches by 18 inches 2. APPLICABLE SmIFICATIOPS ,STANDARDS, AND PUBLICATIONS 2.1 The following specificationa, standards, and publications, of the issues in effect on date of imitation for bids, faim a part of this specificatio
5、n: SPeCIFICATIoNS Federal: Licensed by Information Handling ServicesMIL-M-475 34 9999906 024342b 4 MILb4785 (mm) MItC=4087 f41L-E-5272 Environmental Testing, Aeronautical and Associated MILI-6181 Interference Limits , Tests and Design Requirements, Color Conditioning of Machinery and Shop Equipnent,
6、 General Specification For Equifment , (eneral Specification For) Aircraft Electrical and Electronic Equipnent STANDARDS MILSTD-130 Identification Marking of U. S. Property PUBLIC ATIONS Army-Navy Joint Packaging Instruction: JPI-9 Packaging and Packing of Machine Tools and Accessory Parts for Overs
7、eas Shipment Air Force-Navy Aeronautical Bulletin: I43 Specifications and Standards, Use of (Copies of specifications, standards, and publications required by 2.2 Other publications.- The follotring publications, of the issue in effect on date of invitation for bids, unless otherwise specified, form
8、 a part of thio specification: NATIONAL BURGAU OF STAI1DARI)C PUBLICATION Handbook H 28 - Screw-Thread Standards for Federal Services (Copies of Handbook H 28 may be obtaimd upon application, accompanied by money order, coupon or cash, to the Superintendent of Documents, Government N.IERIGAN STANDlt
9、SDS ASSNIATION STANDARDS kCA B5.1 ASA B5.10 MA B5.18 AA #.I _ASA B6,6 T-Slots - Their Bolts, Nuts, Tongues and Cutters Machine, Tapers, Self-Holding and Steep Taper Ceries Spirdle Noses and Arbors for Milling Machims Spur Gear Tooth Form Gear Tolerances and Inspection I c- Licensed by Information Ha
10、ndling ServicesMILM-4785 (EU) * Association, 70 Nast Forty-Fifth Street, New York 17, New York.) (Copies of ASA Standards Kay be obtained from American Standards NATIONAL 14ACHINE TOOL BUILDEFS ASSOCIATION STANDARD Machine Tool Electrical Standards (Copies of NMTBA Electrical Standards may be obtain
11、ed from the National Machine Tool Builders Association, 10525 Carnegie Avenue, Cleveland 6, Ohio. ) 3.1 Specifications , i . . -. . . . . . , . I. . . , “I . *, . . , . -.- . .-. v.-.- . -. -.4 . . ,I. . - . . . . . . . . , . . . b . . ,. , . , . i L. . , . . . .:;.:T:.:.:, I-.- .-.- *- ._ _-_ . -*
12、 . . - .- . . . . . . . .*I _-_. - . . - . . 1. . . “ . . . -. I- - I . . . . t. . .: . . . . . . . . . . . -. . . . . . . . - . , . . . . - . . . i . . l. . 1 . r ._.- .,. - . L * . . ” .c:.:, . ”I ,.- . . . . . . . . . . . . .-.-.-. . ;* . . . tt LA : : I ,. ,. z: :i: L * -* a . 3. Licensed by In
13、formation Handling ServicesMIL-M-q785 34 7977706 0243L133 MIM-4785 (Ei#) . a D m P k al k Licensed by Information Handling Services- MIL-M-4785 34 ?Ob 0243432 T MILEf4.785 (WAF) TABLE II Dimensions and Capacities Milling Machine , Yerti cal Swiveling Spindle Head TYFE I - Medim Duty w Class 2 - Sie
14、2 Nadmum Jlstance, Snindle Rose Throat Distance, Center7he of to Top of Table,iSat has Than Spine to coumn (win.) Spindle Nose Size, AqA R5.18 Siw of HoleThrowh cblb.) 1 Feedci tiumber of Changes (Min.) Rate Per Ifinutle bngitudinal and the fact that the Government may have formulated, fhrnished, or
15、 in any way supplied the said drawings, specifications, or other data is not to be regarded by implication or otherwise as in any manner licensine the holder or any other prson or corporation, conveying any rights or permission to manufacture, use or sell any patented invention that may in any way b
16、e related thereto. . ., . . . . . . . . ,. .-. . - ,- .-.-. - . . . . . . . . , I ). . . L . . . . ”. . . . . . . . . . . . ,. . . Licensed by Information Handling ServicesMIL-M-4785 34 W 7777706 0243438 O W i z i , Test Number and Application Test lo. 1 Table : Plat and level longi tudinally . Leve
17、 1 i ng Sam tirnrverrely Toit No. 2 Spindle End Peri- phery and Face Run- out. TABU III TEST PROCEDURES & MLERACES FDR VERTICAL MILLIEG UCBIIES Test Diagram A C D E F t0.0005 in. per foot With lem1 at 90. Test at D, E, and F. +-O.S in. per foot Licensed by Information Handling Services#- MIL-M-4785
18、34 W 7977706 0243437 2 M Test Number and Application Te st Diagram Teat No. 3 tnternal Taper true and size to gauge. Test Noa li Spindle Parallel wi Positive Side of column Teat NO. 5 Spindle Parallel with Column Face Tolerances Umly mvolving iiandrd 2 Inchss long, taper-end puge for bore. Test at t
19、 and B. u. occentrio error - - 0,001 in. Total indicator R.eaing. Xax. 0.001 lnehes In 12“ . .- li_ e . Licensed by Information Handling Services- I I Test Diagram ! Teat tumber and bpplic at1 on Tolerances I -_3-_ _ Teat No. 6 Spindle Head Move- ment Parallel with Column Face. _=I. I Toat NO. 7 Spi
20、ndle Head Move- ment Parallel ni th Poaitive Side of column Teat HO, 8 Table Top Square With Spindle (nigh1 and Zef*) Licensed by Information Handling ServicesTAOLEIXI MIM785 (UCAF) Tolerances Rise and Fsl of Table in Longltudin- al Movement Test NO* 10 Table Flat and leve travereing transver sely #
21、Oe 11 Table surface SqmI with surface longi- tudinally, . Test Diagram Dial indicator and spindle. Test table service between limits of traverse. Table high at front. Max 0.001 inches in.12P Indicator in spindle. Describe circle on table. W. 0,001 in 12“ Same. Table high at-front. ?ax. 0,001 in 12“
22、Licensed by Information Handling ServicesflIL-fl-Y785 34 W 999490b 0211311112 2 W TABLE II I MIGL475 (USA) TsitNumber and Applioation Tort NO. 12 Center T-#lots parallel with table movement Longi tudiacrlly. Toit NO. 13 Center T-Slot Square with Gross Movement, rest NO. 14 T-slots square with top of
23、 table. Test Diagram bd I I I I _- Tolerance6 Indicator in spindle !lax, 0.001 in 12“ (Parallel in table 610t and indicator) du. 0,001“ in 12“ iyr.0.001“ in 3“ (Cylindrical square) 18 Licensed by Information Handling Servicesw MIL-M-4785 34 m 9799906 0243443 4 m Test Number and . Application Test NO
24、 15 Column ways for knee square with table. Front t0 Rear. -. - . - - -_ . Test No. 16 Column ways for knec square with spindle Side inclination. Test No. 17 Head-govanent squar with table, oves fa1 range of verti- cal axis, laterally (Front to Rear) Teet Diagram . - - _-_ . _. . . - , ._ . . . . .
25、 MILM4785 (USAF) Tolerances I _*_ Square set vertically indicator in spindle. kx. 0,l“ in 12 inches (Cglindri cal square) - - Square set vertically indicator in spindle, W. 0,ln in 12 inche8 (Cylindrical square) .- Indicator ia Jpindlo, Square set vertically, OaOO1“ in 12 inches (cy1indrica square)
26、Licensed by Information Handling Services34 7979906 02Y34Y4 b -II Y Tort Wer anti Application - Mud M3veaSnt qua full rango of vert cal axil, longitud nrly (Sida #na- iront) -.%- Taet HO, 18 dth table, OIOF -* -_ - Test #Or 1 Movcslrnt of i,dee hrn Clamp ia Lock ed and Unlocked, Talt Nor 20 Back Laa
27、h in Lead Scram Lead error of all fad icrpnc- I i Tolerances -. - - Indicator in spindle, Square set vertically goo from test NO. 17. 0.001fi in 12 inche8 (Cylindrical square) Read on Dials. Table Screw Crofla Feed - - - -0.005“ (UC Table Sarou Vertical Feed Sliding Head Long. - - - -0,oogn (Mi Scre
28、w - - - -0,OOgn (E, Screw - - - -0,005i (f% ilaxe error - - - f0.Olm in 12“ Wrix in total length kccumulative - - - 20 Licensed by Information Handling ServicesHand-elevating movement eensl- tive Same, longtudinal- IY Sama, traveraely. Test Dlogras . - I MIL-M-4785 (USAF) Tolerances Adjust feeds by hand to tit least four equally apace graduations over the full range of the dials, When graduation marks cire correct ly aligned they shall read the sace as the dial test indicator ni thin0.0005 inches o Licensed by Information Handling Services
