Cycle Parameters - HEIDENHAIN TNC 640 User Manual

3

Cycle parameters

Q200 Set-up clearance? (incremental): Distance
between tool tip and workpiece surface. Input
range 0 to 99999.9999
Q201 Depth? (incremental): Distance between
workpiece surface and bottom of hole (tip of drill
taper). 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
Q202 Plunging depth? (incremental): Infeed per
cut Input range 0 to 99999.9999
The depth does not have to be a multiple of the
plunging depth. The TNC will go to depth in one
movement if:
Q203 Workpiece surface coordinate? (absolute):
Coordinate of the workpiece surface. 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
Q212 Decrement? (incremental): Value by which
the TNC decreases the plunging depth Q202.
Input range 0 to 99999.9999
Q205 Minimum plunging depth? (incremental):
If you have programmed Q212 DECREMENT the
TNC limits the infeed to Q205. Input range 0 to
99999.9999
Q258 Upper advanced stop distance?
(incremental): Setup clearance for rapid traverse
positioning when the TNC moves the tool again
to the current plunging depth after retraction from
the hole. Input range 0 to 99999.9999
Q259 Lower advanced stop distance?
(incremental): Lower advanced stop distance Q259
(incremental): Set-up clearance for rapid traverse
positioning when the TNC moves the tool again
to the current plunging depth after retraction from
the hole; value for the last plunging depth. Input
range 0 to 99999.9999
100
Fixed Cycles: Drilling | UNIVERSAL PECKING (Cycle 205, DIN/ISO: G205)
the plunging depth is equal to the depth
the plunging depth is greater than the depth
NC blocks
11 CYCL DEF 205 UNIVERSAL PECKING
Q200=2 ;SET-UP CLEARANCE
Q201=-80 ;DEPTH
Q206=150 ;FEED RATE FOR PLNGNG
Q202=15 ;PLUNGING DEPTH
Q203=+100 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP CLEARANCE
Q212=0.5 ;DECREMENT
Q205=3 ;MIN. PLUNGING DEPTH
Q258=0.5 ;UPPER ADV STOP DIST
Q259=1 ;LOWER ADV STOP DIST
Q257=5 ;DEPTH FOR CHIP BRKNG
Q256=0.2 ;DIST FOR CHIP BRKNG
Q211=0.25 ;DWELL TIME AT DEPTH
Q379=7.5 ;STARTING POINT
Q253=750 ;F PRE-POSITIONING
Q208=9999 ;RETRACTION FEED RATE
Q395=0 ;DEPTH REFERENCE
HEIDENHAIN | User's manual for cycle programming | 10/2017