2.8.25.10 Improved Multiple Repetitive Cycle
Function (Cent’d)
!
TOOL WIDTH
;
R
A
START POINT
I
-r
—+
1
I
n L
T
~—”t 1’
Y
II
I
I
1
I
-+ -/- --- ---—
I
x
- “i
+Z
2.8.25 .10.6 Notes of the improvement of the
multiple repetitive cycle functions
(1)
(a)
(b)
(2)
(a)
(b)
(i)
(ii)
(c)
;TEPS
The following conditions are added to Pars.
2.8.25.10.1, 2,8.25.10.2, and 2.8.25.10.3.
The upgrading effective by related parameter
#6011 D1 = 1.
This improvement expands the maximum
storage of the finishing form program to 39
blocks .
(Improvement of Par. 2.8.25.1 (general) (2).)
Notes
on improvement made to Par. 2.5
G741G75
Without both commands A and B, the
conventional G74/G75 movement is executed.
When B alone is commanded, tool width shift
is performed at the beginning and end of
G741G75. Details are as follows.
The first movement is the shift for the tool
width, from the positioning location of the
block immediately before G741G75 to the
X–axis command direction (G74) or Z-axis
command direction (G75 ) .
The final movement is to positioning from the
positioning location of the block immediately
before G741G75 to the tool-width shift position
and then to return to the position of the
block immediately before G74/ G75.
When A alone is commanded, only groove
(d) When A is commanded, the return amount is
the #6208 setting amount (G74) or #6209
setting amount (G75) , If the contents are
lfo It, no pecking is performed.
(Addition to
Par. 2.8.25.6 Notes and remarks) .)
(e) Alarm 96 occurs when the command is groove
width f B (tool width) .
2,8.26 CANNED CYCLES (G 90, G 92, G 94)
A series of basic lathe operations specified usu-
ally in four blocks ,
can be commanded in one
block .
There are the following three canned cycles ,
2,8.26.1 Turning Cycle A (G 90)
(1) Straight turning cycle
G90 X( U)... Z(W) . . . F(E) . . . ;
The cycle ~ to ‘~ shown below is ex-
ecuted by this command.
+.x
z
Rapta traverse
Specjf, ed w
F code
~
Fig.2.55
Since G
90 is modal, the cycle operation will
be continued by specifying the depth of cut
in the X –axis direction in the following
blocks as follows.
x(u) . . . ;
x(u) . . . ;
EXAMPLE :
N1O GOO x94. z62. ;
Nll G90 X80, W-42. FO.3 ;
Cycle
start
N12 X70. :
~ G90 is execut-
N13 x6o. ;
II
ed with depth
cut changed .
N14 GOO. .. ;
machining is performed without ex=cuting tool
width shift.
116
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