DLA A-A-59238-1998 SHEARING MACHINES METAL CIRCULAR POWER-DRIVEN [Superseded DLA MIL-S-80093 B CANC NOTICE 1 DLA MIL-S-80093 B DLA MIL-S-80093 A DLA MIL-S-80093 (1) DLA MIL-S-80093.pdf
《DLA A-A-59238-1998 SHEARING MACHINES METAL CIRCULAR POWER-DRIVEN [Superseded DLA MIL-S-80093 B CANC NOTICE 1 DLA MIL-S-80093 B DLA MIL-S-80093 A DLA MIL-S-80093 (1) DLA MIL-S-80093.pdf》由会员分享,可在线阅读,更多相关《DLA A-A-59238-1998 SHEARING MACHINES METAL CIRCULAR POWER-DRIVEN [Superseded DLA MIL-S-80093 B CANC NOTICE 1 DLA MIL-S-80093 B DLA MIL-S-80093 A DLA MIL-S-80093 (1) DLA MIL-S-80093.pdf(8页珍藏版)》请在麦多课文档分享上搜索。
1、F.JCH-POUND A-A-59238 26 May 1998 SUPERSEDING 18 October 1989 MIL-S-80093B COMMERCIAL ITEM DESCRIPTION SHEARING MACHINES, METAL, CIRCULAR., POWER-DRIVEN The General Services Administration has authorized the use of this commercial item description for all federal agencies. 1. SCOPE. This commercial
2、item description (CID) covers power-driven, circular, metal- shearing machines used for ring and circle shearing, flange-forming, and joggling operations. 2. CLASSIFICATION. The circular shearing machines shall be of the following types and sizes. The sizes shall be as specified in tables I, II, and
3、 III. Size refers to the metal thickness and minimum and maximurn circle-cutting diameters the machine can accommodate. The type and size to be furnished shall be as specified (see 7.2(b). Type1 -Shearing Type II - Shearing and flanging Type III - Shearing, flanging, and joggling Size - (See tables
4、I through III) Beneficial comments, recommendations, additions, deletions, clarifications, etc., and any data which may improve this document should be sent to: Defense Supply Center Richmond, A“: DSCR-VBD, 8000 Jefferson Davis Highway, Richmond, VA 23297-561 O. AMSC NIA FSC 3445 DISTRIBUTION STATEM
5、ENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59238 m 90L8054 00005b8 948 m Joggling thickness, inch, minimum Straight cut width range, inches Motor - horsepower, minimum A-A-5923 8
6、 12 ga. 118 1 I4 318 1 12 518 1 - 26 1 ln - 26 2 1/2 - 40 2 1/2 - 40 3 - 40 5 - 40 1 13 3 I4 1 112 10 10 10 TABLE I. Twe I machine sizes. Characteristics I Motor - horsepower, minimum 1 3/16 12 39 10 1 I3 Sizes &i 23 I 12 TABLE II. TvDe II machine sizes. t +I 100 144 TABLE III. Twe III machine sizes
7、. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59238 901805i.r 0000569 884 A-A-59238 3. SALIENT CHARACTERISTICS 3.1 General requirements. The machine shall be new and one of the manufacturers current models capable of operation in accordance
8、 with the requirements herein. The machine sizes shall conform to tables I through III. All parts subject to wear, breakage, or distortion shall be accessible for adjustment, replacement, and repair. Mechanisms requiring periodic manual lubrication shall be readily accessible for servicing. 3.2 Comp
9、onents. The shearing machine shall include, as a minimum, the following components: 3.2.1 Frame. The Erame shall have provisions for leveling and anchoring the machine to the floor or a foundation. 3.2.2 Worksheet sumort. The worksheet support shall have a clamp for securing the center of the worksh
10、eet to the support and shall allow worksheet rotation. The worksheet support shall be horizontally adjustable to allow for varying diameters of cuts on machined bearing surfaces. When specified (see 7.2(c), the clamp shall be power driven. 3.2.3 Cutter heads. The cutter heads shall be easily adaptab
11、le for the attachment of shear blades and forming (flanging and joggling) attachments, as applicable for the machine type specified. Either the upper, lower, or both cutter heads shall be power driven. Means shall be provided for laterally adjusting either cutter or both to maintain alignment betwee
12、n the shear blades or the forming attachments. The upper head shall be vertically adjustable and shall be provided with a means for locking the cutter head into a selected position. The upper cutter head on machine sizes with shearing capacities greater than 1/4 inch shall be provided with a power-d
13、riven dow- feed mechanism for feeding the shear cutters or forming attachments as the cut or flange progresses. 3.2.4 Shear blades. The shearing machine shall be provided with upper and lower shear blades as normally furnished by the manufacturer. If required, shear blades shall be provided as speci
14、fied (see 7.2(d). 3.2.5 Flanging rolls and attachments. Type II and III circular shearing machines shall be provided with flanging roller attachments to meet the flange requirements shown in tables II and III. 3.2.6 Jonling rolls and attachments. Type III circular shearing machines shall be provided
15、 with joggling attachments that meet the joggling requirements shown in table III. 3.2.7 ODerator controls. The shearing machine controls shall be convenient to the operator. Unless otherwise specified (see 7.2(e), the manufacturers standard control system shall consist of push buttons and selector
16、switches for startstop and cutting speed (if variable). 3.2.8 Hydraulic system. The hydraulic system shall provide overpressure protection. A filter system shall ensure delivery of clean fluid to the hydraulic system. The hydraulic system reservoir shall have a sight gauge to indicate fluid level. A
17、 means shall be provided to drain and clean the hydraulic reservoir. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59238 E OLB054 0000570 5Tb E A-A-59238 3.2.9 Electrical system. Unless otherwise specified (see 7.2 (o), the electrical system
18、shail conform to the American National Standards InstitutelNationai Fire Protection Association (ANSWPA) 79. The machine shall have a dual 230/460-volt, 3-phase, 60-hertz circuit capability and shall be wired for the voltage specified (see 7.2 (g). The control system shail operate on a 120-v0lt, sin
19、gle-phase, 60-hertz circuit provided hm the machine main power supply. 3.2.10 Electric motors. The shearing machines drive motor(s) shall have sealed and permanently lubricated ball or roller bearings, shall be energy efficient, and shall confonn to the National Electrical Mandicturers Association (
20、NEMA) MG-1. Unless otherwise specified (see 7.2), the motors shall have cip-proof enclosures. 3.2.1 1 Optional components. Optional components listed below shall be provided as specified (see 7.2 (i). a. Straight cutting attachments. b. Additional components as specified. 3.3 Performance. Unless oth
21、erwise specified (see 7.2(j), the circular shearing machines shail meet the requirements shown in tables I through III when tested in accordance with sections 5.3.1 through 5.3.2. 3.4 Machine dimensions and weight. Ifrequired, the maximum machine dimensions (length, width, and height) and mache weig
22、ht shail not exceed the restrictions specified (see 7.2(k). 3.5 Safety and health muirements. The mandacturer shall ensure that the machine and all equipment and accessories used on the machine shall be in compliance with Occupational Safety and Health Association (OSHA) 29 CFR PART 1910. 3.6 System
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