FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

PROGRAMMING
14. FUNCTIONS TO SIMPLIFY
PROGRAMMING
B–62754EN/01
176
The peck drilling cycle or high–speed peck drilling cycle is used
depending on the setting in RTR, bit 2 of parameter No. 5101. If depth
of cut for each drilling is not specified, the normal drilling cycle is used.
This cycle performs high–speed peck drilling. The drill repeats the cycle
of drilling at the cutting feedrate and retracting the specified retraction
distance intermittently to the bottom of a hole. The drill draws cutting
chips out of the hole when it retracts.
G83 or G87 (G98 mode) G83 or G87 (G99 mode)
G83 X(U)_ C(H)_ Z(W)_ R_ Q_ P_ F_ M_ ;
or
G87 Z(W)_ C(H)_ X(U)_ R_ Q_ P_ F_ M_ ;
X_ C_ or Z_ C_ : Hole position data
Z_ or X_ : The distance from point R to the bottom of the hole
R_ : The distance from the initial level to point R level
Q_ : Depth of cut for each cutting feed
P_ : Dwell time at the bottom of a hole
F_ : Cutting feedrate
K_ : Number of repeats (When it is needed)
M_ : M code for C–axis clamp (When it is needed.)
Initial level
Point RPoint R
Point Z Point Z
q
q
q
d
q
q
q
Mα Mα
Mβ
Mβ,P2
P2
P1 P1
d
d
d
Mα : M code for C-axis clamp
Mβ : M code for C-axis unclamp
P1 : Dwell specified in the program
P2 : Dwell specified in parameter No. 5112
d:Retraction distance specified in parameter No. 5114
Point R
14.3.1
Front Drilling Cycle
(G83) / Side Drilling
Cycle (G87)
D High–speed peck
drilling cycle (G83, G87)
(parameter RTR (No.
5101#2) =0)
Format

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