HEIDENHAIN TNC 320 (340 55x-05) Cycle programming User Manual
Page 88
88
Fixed Cycles: Drilling
3.1
0
SINGLE-LIP DEEP
-HOLE DRIL
LING (Cy
c
le 241, DIN/ISO: G241)
U
Rotat. dir. of entry/exit (3/4/5) Q426: Desired
direction of spindle rotation when tool moves into and
retracts from the hole. Input range:
3: Spindle rotation with M3
4: Spindle rotation with M4
5: Movement with stationary spindle
U
Spindle speed of entry/exit Q427: Desired spindle
speed when tool moves into and retracts from the
hole. Input range 0 to 99999
U
Drilling speed Q428: Desired speed for drilling. Input
range 0 to 99999
U
M function for coolant on? Q429: M function for
switching on the coolant. The TNC switches the
coolant on if the tool is in the hole at the deepened
starting point. Input range 0 to 999
U
M function for coolant off? Q430: M function for
switching off the coolant. The TNC switches the
coolant off if the tool is at the hole depth. Input range
0 to 999
Example: NC blocks
11 CYCL DEF 241 SINGLE-LIP DEEP-HOLE
DRILLING
Q200=2
;SET-UP CLEARANCE
Q201=-80
;DEPTH
Q206=150
;FEED RATE FOR PLNGNG
Q211=0.25 ;DWELL TIME AT DEPTH
Q203=+100 ;SURFACE COORDINATE
Q204=50
;2ND SET-UP CLEARANCE
Q379=7.5
;STARTING POINT
Q253=750
;F PRE-POSITIONING
Q208=1000 ;RETRACTION FEED RATE
Q426=3
;DIR. OF SPINDLE ROT.
Q427=25
;ROT. SPEED INFEED/OUT
Q428=500
;DRILLING SPEED
Q429=8
;COOLANT ON
Q430=9
;COOLANT OFF