46
Before using G86 boring cycle, must specify spindle rotation through the M code.
CAUTION:
1.
The tool radius compensation: in the use of a fixed cycle instructions, tool radius compensation is
ignored.
2.
Cancel the fixed cycle: cannot be used in the same program segment G86 and 01 group G code,
otherwise G81 is cancelled.
3.
Loop parameters: after the complete drilling cycle instruction, follow-up procedures section separately
specify the new cycle parameters (Z, R), a new cycle parameters cannot be effective; When the follow-up process
at the same time the number of the specified data and a new cycle parameters (Z, R), a new cycle parameters take
effect immediately, and in the subsequent program segment modal effect.
Program example:
G0
G90
G54
X50.
Y160.
Z30.
S200
M3
Rapid positioning to hole 1, spindle begin to spin.
G98 G86 X50. Y160. Z-10. F100. R3.
Perform boring cycle, bore hole 1, then return to
the initial plane
X-50.
Bore hole 2, and then return to the initial plane
Y-160.
Bore hole 3, and then return to the initial plane
X50.
Bore hole 4, and then return to the initial plane
G80
Cancel fixed cycle
M30
Program end
13.3.8 Back Boring Cycle (G87)
Format:
G87 X_ Y_ Z_ R_ Q_ P_ F_ K_
；
X_ Y_
：
Hole data
Z_
：
Absolute coordinate of the hole bottom (absolute value)
From the R point to the bottom of the hole distance (incremental mode)
R_
：
Absolute coordinates of point R (absolute value)
Distance (incremental mode) from an initial position to point R
Q_
：
Hole bottom offset
P_
：
Pause time
F_
：
Cutting feed rate
