OPTIMUM
M A S C H I N E N - G E R M A N Y
808D
Page 385
ISO Mode
Brief instruction 808D Milling
Operating and Programming — Milling
Basic Theory
G76
Boring cycle
Common programming structures:
G76 X—Y—Z—R—Q—P—F—K
Motion process:
①
Drilling motion (-Z)
→
cutting feed
②
Motion at the bottom of the hole
→
spindle stop directional
③
Retraction motion (+Z)
→
fast feed
G76
application example program:
M3 S500
;spindle rotation
G90 G99
G76 X300 Y-250 Z-150 R-100 Q5 P1000 F120
;after orientation bore 1st hole, then move 5 mm, stop for 1 s
at the bottom of the hole, back to the R point.
Y-50
;bore 2nd hole (the same as 1st hole )
Y-80
;bore 3rd hole (the same as 1st hole)
X10
;bore 4th hole (the same as 1st hole)
Y10
;bore 5th hole (the same as1st hole)
G98 Y-750
;bore 6th hole, then move 5 mm,
stop for 1s at the bottom of the hole, back to the start point
position plane
G80
;cancel fixed cycle
G28 G91 X0 Y0 Z0
;back to reference point
M5
;spindle rotation stop
G81
Drilling cycle (fixed point drilling)
Common programming structures:
G81 X—Y—Z—R—F—K
Motion process:
①
Drilling motion (-Z)
→
cutting feed
②
Motion at the bottom of the hole
→
none
③
Retraction motion (+Z)
→
fast feed
G81
application example program:
M3 S2000
;spindle rotation
G90 G99
G81 X300 Y-250 Z-150 R-10 F120
;after orientation drill 1st hole, back to R point
Y-550
;after orientation drill 2nd hole, back to R point
Y-750
;after orientation drill 3rd hole, back to R point
X1000
;after orientation drill 4th hole, back to R point
Y-550
;after orientation drill 5th hole, back to R point
G98 Y-750
;after orientation drill 6th hole, back to start plane
G80
;cancel fixed cycle
G28 G91 X0 Y0 Z0
;back to reference point
M5
;spindle rotation stop
M30
G82
Drilling cycle (countersink drilling)
Common programming structures:
G82 X—Y—Z—R—P—F—K
Motion process:
①
Drilling motion(-Z)
→
cutting feed
②
Motion at the bottom of the hole
→
pause
③
Retraction motion (+Z)
→
fast feed
G82
application example program:
M3 S2000
;spindle rotation
G90 G99
G82 X300 Y-250 Z-150 R-100 P1000 F120
;after orientation drill 1st hole, stop for 1 s at the bottom of the
hole, back to the R point.
Y-550
;drill 2nd hole (the same as 1st hole)
Y-750
;drill 3rd hole (the same as 1st hole)
X1000
;drill 4th hole (the same as 1st hole)
Y-550
;drill 5th hole (the same as 1st hole)
G98 Y-750
;drill 6th hole, stop for 1 s at the bottom of the
hole, back to the start point position plane
G80
;cancel fixed cycle
G28 G91 X0 Y0 Z0
;back to reference point
M5
;spindle rotation stop
M3
G83
Drilling cycle (deep hole drilling)
Common programming structures
G83 X—Y—Z—R—Q—F—K
Motion process:
①
Drilling motion (-Z)
→
intermission
feed
②
Motion at the bottom of the hole
→
None
③
Retraction motion (+Z)
→
fast feed
G83
application example program:
M3 S2000
;spindle rotation
G90 G99
G83 X300 Y-250 Z-150 R-100 Q15 F120
;after orientation drill 1st hole, back to R point
Y-550
. ;after orientation drill 2nd hole, back to R point
Y-750
. ;after orientation drill 3rd hole, back to R point
X1000
. ;after orientation drill 4th hole, back to R point
Y-550
. ;after orientation drill 5th hole, back to R point
G98 Y-750
. ;after orientation drill 6th hole, back to start plane
G80
;cancel fixed cycle
G28 G91 X0 Y0 Z0
;back to reference point
M5
;spindle rotation stop
M30