Cycle Parameters - HEIDENHAIN TNC 620 User Manual

Fixed Cycles: Drilling | SINGLE-LIP DEEP-HOLE DRILLING (Cycle 241, DIN/ISO: G241, software option 19)

Cycle parameters

Q200 Set-up clearance? (incremental): Distance
of tool tip to Q203 SURFACE COORDINATE. Input
range 0 to 99999.9999
Q201 Depth? (incremental): Distance of Q203
SURFACE COORDINATE to bottom of hole. Input
range -99999.9999 to 99999.9999
Q206 Feed rate for plunging?: Traversing speed
of the tool in mm/min while drilling. Input range 0
to 99999.999, alternatively FAUTO, FU
Q211 Dwell time at the depth?: Time in seconds
that the tool remains at the hole bottom. Input
range 0 to 3600.0000
Q203 Workpiece surface coordinate? (absolute):
Distance to workpiece datum. Input range
-99999.9999 to 99999.9999
Q204 2nd set-up clearance? (incremental):
Coordinate in the spindle axis at which no collision
between tool and workpiece (fixtures) can occur.
Input range 0 to 99999.9999
Q379 Deepened starting point? (incremental
with respect to Q203 SURFACE COORDINATE,
takes Q200 into account): Starting position
of actual drilling. The TNC moves at Q253 F
PRE-POSITIONING to the value Q200 SET-UP
CLEARANCE above the deepened starting point.
Input range 0 to 99999.9999
Q253 Feed rate for pre-positioning?: Defines
the traversing speed of the tool when returning to
Q201 DEPTH after Q256 DIST FOR CHIP BRKNG.
This feed rate is also in effect when the tool is
positioned to Q379 STARTING POINT (not equal
0). Entry in mm/min. Input range 0 to 99999.9999
alternatively fmax, FAUTO
Q208 Feed rate for retraction?: Traverse speed
of tool when moving out of the hole in mm/min.
If you enter Q208=0, the TNC retracts the tool at
Q206 FEED RATE FOR PLNGNG. Input range 0 to
99999.999, alternatively Fmax, FAUTO
Q426 Rot. dir. of entry/exit (3/4/5)?: Rotational
speed at which the tool is to rotate when moving
into and retracting from the hole. Input:
3: Turn the spindle with M3
4: Turn the spindle with M4
5: Move with stationary spindle
HEIDENHAIN | TNC 620 | User's manual for cycle programming | 10/2017
NC blocks
11 CYCL DEF 241 SINGLE-LIP
D.H.DRLNG
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 ;ROT. SPEED DRILLING
Q429=8 ;COOLANT ON
Q430=9 ;COOLANT OFF
Q435=0 ;DWELL DEPTH
Q401=100 ;FEED RATE FACTOR
Q202=9999 ;MAX. PLUNGING DEPTH
Q212=0 ;DECREMENT
Q205=0 ;MIN. PLUNGING DEPTH
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