
B-63444EN/01-3
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EDIT
DATE DESIG. DESCRIPTION
TITLE
DRAW.NO.
CUST.
SHEET
01
011129 New design
FANUC Power Mate 0 Operator’s Manual
ADDITION OF FUNCTIONS TO SIMPLIFY
PROGRAMMING
This option canned cycles to make CNC programming easy. For
instance, the data of the finish work shape describes the tool path
for rough machining. And also, a canned cycles for the thread
cutting is available.
There are two types of stock removals in turning : Type I and II.
If a finished shape of A to A′ to B is given by a program as in the
figure below, the specified area is removed by ∆d (depth of cut), with
finishing allowance ∆u/2 and ∆w left.
G71 U (
∆
d) R (e) ;
G71 P (ns) Q (nf) U (
∆
u) W (
∆
w) F (f ) S (s ) T (t)
N (ns)………………..
……………………….
F____
S____
T____
N (nf)…………………
∆d :Depth of cut (radius designation)
Designate without sign. The cutting direction depends on the direction
AA′. This designation is modal and is not changed until the other value is
designated. Also this value can be specified by the parameter (No. 5132),
and the parameter is changed by the program command.
e : Escaping amount
This designation is modal and is not changed until the other value is
designated. Also this value can be specified by the parameter (No. 5133),
and the parameter is changed by the program command.
ns :Sequence number of the first block for the program of finishing shape.
nf :Sequence number of the last block for the program of finishing shape.
∆u :Distance and direction of finishing allowance in X direction (diameter /
radius designation).
∆w :Distance and direction of finishing allowance in Z direction.
f,s,t:Any F , S, or T function contained in blocks ns to nf in the cycle is ignored,
and the F, S, or T function in this G71 block is effective.
Fig. 13.2.1 (a) Cutting Path in Stock Removal in Turning (Type I)
13.2
MULTIPLE
REPETITIVE CYCLE
(G70
~
G76)
13.2.1
Stock Removal in
Turning (G71)
•
Type I
C
B
(F)
(R)
e
A
∆d
A'
45°
(R)
(F)
∆u/2
∆w
Program command
(F) : Cutting feed
(R) : Rapid traverse
The move command between A and B is specified
in the blocks from se
uence number ns to nf.