MIL-P-80054D
positioning unit shall hold the workpiece by at least two clamps and shall be
adjustable for holding any workpiece size ranging up to the capacity of the
machine. The workpiece positioning unit shall be provided with means to
prevent the workpiece clamps from being punched during the punching operation.
When specified (see 6.2.1), the workpiece positioning unit shall be provided
with automatic sheet repositioned characteristics for location of sheets
longer than the rated capacity of table I by tape command. The closed loop
workpiece positioning unit shall measure and feed back to the control unit,
the output signals of actual workpiece position to be compared with the input
positioning commands of the program tape data. The control unit shall be
arranged to shut down the machine for positioning errors in excess of 0.003
inch.
3.4.11.28 Postprocessor. When specified (see 6.2.1), a postprocessor shall
be furnished with the capability of converting the coordinate data generated
by the computer program into machine language format of the punching machine.
The computer and operating software, on which the postprocessed is to operate,
shall be fully described under 3.9.
3.4.11.29 Test tape. Unless otherwise specified (see 6.2.1), a test tape
and print out, programmed to perform all system functions specified herein
shall be furnished. The test tape shall operate all slides, motors, pumps,
adjusting mechanisms, and accessories during each cycle of the test tape.
3.5 Sizes and capacity. Unless otherwise specified (see 6.2.1), the size
and capacity shall be not less than those specified in table I for the machine
size specified.
3.6 Performance. The machine shall be capable of automatic punching holes
in SAE 1020 -steel to meet the capacity and accuracy requirements of table I as
applicable for the machine size specified. The numerical control system shall
meet the performance requirements of 3.4.11,
3.6.1 Additional performance requirements. Performance features required
in addition to, or in lieu of, the requirements herein shall be as specified
and fully described (see 6.2.1).
Each machine shall meet the alignment tolerances
3.7 Alignment tolerances.
specified in 3.4.4.
3.8 Standard equipment. Unless otherwise specified, all equipment normally
furnished with the manufacturer's standard commercial machine shall be
furnished. When specified (see 6.2.1), required additional equipment shall be
furnished and fully described.
3.9 Optional equipment. Optional equipment shall be furnished as specified
and shall be fully described (see 6.2.1).
.
3.10 Repair parts. Repair parts shall be furnished as specified (see
6.2.1).
3.11 Marking on plates and charts. All words on plates and charts shall be
haracters shall be engraved, etched, embossed, or
in the English language.
stamped in boldface on a contrasting background.
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