UNIVERSAL PECKING (Cycle 205, DIN/ISO: G205) 3.8
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
83
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 during 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:
the plunging depth is equal to the depth
the plunging depth is greater than the depth
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 entered Q212 DECREMENT,the TNC limits
the plunging depth to the value for 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
Q257 Infeed depth for chip breaking?
(incremental): Plunging depth after which the TNC
breaks the chip. No chip breaking if 0 is entered.
Input range 0 to 99999.9999
Q256 Retract dist. for chip breaking?
(incremental): Value by which the TNC retracts
the tool during chip breaking. Input range 0.000 to
99999.999
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
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