MIL-C-80036C
Components.
3.4
3 . 4 . 1 Carriage assembly. The carriage assembly shall be constructed of
m e t a l with sufficient strength and rigidity to insure performance as speci-
f i e d h e r e i n . T h e carriage assembly shall have provisions for the tracing
u n i t to traverse the entire tracing table area, and for one torch holder to
The
s i m u l t a n e o u s l y traverse the same dimensions within the cutting area.
r a i l and wheel contact surfaces shall have a finish that will assure vibra-
t i o n - f r e e operation and performance as specified herein. Coordinated trans-
v e r s e and longitudinal movements s h a l l b e p r o v i d e d b y i n d i v i d u a l d r i v e
m o t o r s , with provisions to lock the drive in transverse or longitudinal po-
s i t i o n for making straight cuts, parallel cuts, and cuts at 90 degrees to
D r i v i n g surfaces of the carriage shall not be exposed to
the main rails.
M o v e m e n t s of the carriage shall be positive, with
t h e cutting operation.
backlash between drive and driven members limited to the extent necessary to
A suit-
a s s u r e cutting operations within the tolerances specified in 3.6.
a b l e air blast or wiper shall be incorporated, if necessary, to keep rail
s u r f a c e s clean.
T h e gas and electrical distributing system shall be inte-
g r a l with the carriage or cross beam, and shall be mounted thereon. Unless
o t h e r w i s e specified, t h e machine shall be furnished for right hand opera-
tion.
R i g h t hand operation shall be with the torches to the right and the
When
c o n t r o l s to the left of the operator when facing the control station.
s p e c i f i e d (see 6.2.1), the machine shall be furnished for left hand opera-
tion.
L e f t hand operation shall be with the torches to the left and the
c o n t r o l s to the right of the operator when facing the control station.
Steel carriage rails shall be of the manufac-
3.4.2 Carriage rails.
t u r e r ' s s t a n d a r d d e s i g n and shall be of a type which readily permit exten-
W h e n specified (see 6.2.1), additional sections
s i o n by adding sections.
T r a v e l stops or limit switches which prevent carriage
s h a l l be furnished.
o v e r t r a v e l shall be provided.
3 . 4 . 3 Coordinate drive. T h e coordinate drive shall provide directional
The carriage shall be powered by servo
movements for the machine carriage.
m o t o r s which are coordinated electronically through a directional control
u n i t actuated by the tracer.
T h e oxygen-fuel gas cutting
3.4.4
C u t t i n g torch, oxygen-fuel gas.
t o r c h shall be of the valved,
h o s e , machine type with a cylindrical barrel
and rack, and shall be designed for use with oxygen and the
s p e c i f i e d gas
The end of the torch, housing the fuel and oxygen
( s e e 3.2.9 and 6.2.1).
The torch head shall be
v a l v e s , shall be manufactured of bronze or brass.
U n l e s s otherwise
constructed to receive cutting tips of various sizes.
s p e c i f i e d (see 6.2.1), four oxygen cutting torches shall be furnished with
the type I machine and three with the type II machine.
A remote controlled automatic igniter shall be
3.4.5 Torch ignitor.
provided for each torch.
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