AIR FORCE MIL-G-4937-1955 GRINDING MACHINE CARBIDE TOOL BIT PEDESTAL ELECTRIC《装有硬质合金刀具与台座的电动磨床》.pdf

1、MIL-G-Lt937 34 m 9999906 0243LtYb T m / GRINDING YACHINE, CARBIDE TGOL BIT, PEDESTAL, ELECTRIC 1, SCOPE 1.1 This specification covers an electric, pedestal, carbide tool bit grinding machine. 2, APPLICABLE DC“TS 2,l The following specifications, standards, and publication, of the issue in effect on

2、date of invitation for bids, form a part of this specif i cation : SPEC IF1 CATIONS FEDERAL w- R-1 c5. C C -I*!- 636 FF-5171 STANDARDS MILITAEX Receptacles ( Convenience-Outlets) , Adapters, Attachment-Plug-Caps, Cord-Connector-Ebdies, Current-Tqs, Motor-Ease Flugs, and Flug- Bodies; 2S-Volts Motors

3、 Fractional Horseparer, (Alternating- Current ) Bearings; BaJl Preservation, Methods -of Color Conditioning of Machinery and Shop Equipment, General Specification For Cable and Wire, Power, Electric, Portable Interference Limits, Tests and Design Requirements, Aircraft Rectrical and Electronic Equi

4、pment -MIL-STD-lv ML-STD-O Marking For Shipment And Storage Identification Marking of U. S. Military Property Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2 Other publications.- The following documents form a part of this specification. Unless o

5、therwise specified, the issue in effect on date of invitation for bids shall apply. NATIONAL BUREAU OF STAIIIDARDC Handbook H28 Screw-Thread Standards for Federal Services (Application for copies should be addressed to the Sipmintendent of Documents, Government Fkinting Office, Washington 25, D, C.)

6、 N4l3WCAN STANDARDS ASSOCIATION ASA w.1 Use, Care, and Protection of Abrasive Wheels (Copies of ASA standards may be obtained from the American Standards Assodation, 70 Fast 45th Street, New York 17, New York.) 3, REQUDEMENTS 3.1 Component parts.- The grinding machine shall consist of the following

7、major component parts : a. EhSe b, Worktables C. bake d, Hoods e, Light assembiy f. Eiectrical equipment g. Tools and accessories 3.2 Materi minimum length, 8 feet, plug and cap conforming to Specification W-R-151, strie 95 G, shall be provided in accordance with the requirements of Specification MI

8、L-1-5161, Motors which do not have commutators or brushes and which operate at less than 3,000 rpm shall be considered to be interference free. with a protractor tool holder, diamond wheel dresser, and two plate-inounted grinding wheels. 3.L,6.3 The cable shall 5e provided with a three-prong 3,4,6,4

9、 kio interference suppression,- Radio interference suppression , 30b.7 Tools and accessories,- The grinding machine shall be equipped 3,4,7,1 Wheel dresser,- The wheel dresser shaU consist of a diamond holder mounted on a slide, machined to accuratey slide in the worktable slot, A diamond shall be f

10、urnished with the dresser attachment. 3,4,7,2 Tool holder,- The tool holder shall consist of a protractor mounted on a slide, machined to accurately slide in the worktable slot, and a means to hold the tool being ground at the angle of the protractor set, Tho protractor shall have a pointer with a p

11、ermanently marked centorine and shall be graduated in 1s-minute increments, accordeuce with Standard ASA B7,l and as specified herein. 3.4.7J Grinding wheels,- Each grinding wheel shall be type 2 in ASA type 2 Cylinder, plate-inounted Holes: 1-lh-inch diameter niilot, h 2;/&-inch Provided by IHSNot

12、for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-4937 34 9997906 OELi3451 3 MIL-G-49 37 ( WAF) 4,3 Sampling tests,- RK) grinding machines shall be selected at random

13、from each lot of 10 or fraction thereof produced and subjected to the following tests: in either direction of rotation for a period of 3 minutes, the cwrent switched off and the brake applied. The shaft or spindle shall come to a complete stop wit-hin 15 seconds after current is switched off. 4.3.1

14、Brake test.- The grinding machine shall be run at m&xm speed 4.3,2 Table test.- The table of the pinding machine shall be set at the horizontal level at a 90“ angle to a test plate mounted on the spindle, After quick set clamp oftable has been set at this angle, aweight of 3130 pounds shaU. be place

15、d on the outer edge of the table parallel with the test plate. losa than 72 hours. 5 minutes at campietion of test, The weight shall. remain in this position for a period of not The alignment angle of the table shall check within 4.3.3 Radio interference.- Radio interference shall be tested in accor

16、dance with Specification HIL-1-6181, except the antenna shall be located a distance of 5 feet from the test sample, 5, PREFfGtATICN FCR DELIVERY !%l. Preservation and packaging: 5.1.1. Domestic shipmnt, hediate we.- Unless otherwise protected, alJ. exposed metal surfaces and finished machine parts s

17、hall be ele-aned by any applicable method of Specification MIL-P-116 and preserved in accordance with method I of Specification r.11-116, 5,1a2 Domestic shipment -Ath limited storage.- Cleaning and preservation shal be as specified in 5.1.1. 5.1.3 Overseas or domestic shipment with extended storage.

18、 The gri.nding machine shall be cleaned and preserved in accordance with instruction 19. 5.2 Packing: 5,2.1 Domestic packing,- The grinding machine shall te packed in a substantial. commrcial container of a ty-pe and size to assure acceptance by cmercial carriers for safe delivery to destination. F

19、reight Classification Rules, as applicabe,) shall be securely blocked and braced in accordance with Instruction JPI-9. containers shall be marked in accordance with Standard lrlIL-STD=l29, (See Consolidated so 2.2 Overseas packing.- The grinding niachine, complete with equipment, 5.3 Marking of ship

20、ments.- Interior packages and exterior shipping 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I - MIL-G-4737 34 7999706 0243452 5 - MIL-G-4937 (usm 6, NGTES 6.1 Use,- The gririing machine covered by this spccification is intended for use in shapi

21、ng and sharpening carbide-tipped cingle-point cutting tools as used in machine shop operation and practice. 6.2 Ordering data,- bquisitions and procurelrent documents should specify the following: a. Title, number, and date of this specification. b. Whether domestic or overseas shipment is required.

22、 (See section 5.) NOTICE: are used for any purpose other than in connection with a definitely related Government procumment operation, the United States Government thereby incurs no responsibility nor any obligation whatsoever and- the fact that the Government may have formulated, furnished, or in a

23、ny way supplied the said drawings, specifications, or other data is not to be regarded by implication or otherwise as in aqy manner licensing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use, or sell any patented invention that may in any way be relzted thereto, When Gaverment dranings, specifications, or other data 7 GPO E14601 i I. i- , Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-