Cycle Parameters - HEIDENHAIN TNC 640 User Manual
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Also See for TNC 640:
- User manual (948 pages) ,
- User manual (903 pages) ,
- Operating instructions manual (64 pages)
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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. 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
Q210 Dwell time at the top?: Time in seconds
that the tool remains at set-up clearance after
having been retracted from the hole for chip
breaking. Input range 0 to 3600.0000
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 Q202 MAX. PLUNGING DEPTH
after each infeed. Input range 0 to 99999.9999
Q213 Nr of breaks before retracting?: Number
of chip breaks after which the TNC is to withdraw
the tool from the hole for chip breaking. For chip
breaking, the TNC retracts the tool each time by
the value in Q256. Input range 0 to 99999
Q205 Minimum plunging depth? (incremental):
If you have programmed Q212 DECREMENT the
TNC limits the infeed to Q205. Input range 0 to
99999.9999
92
Fixed Cycles: Drilling | UNIVERSAL DRILLING (Cycle 203, DIN/ISO: G203)
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
NC blocks
11 CYCL DEF 203 UNIVERSAL DRILLING
Q200=2
;SET-UP CLEARANCE
Q201=-20
;DEPTH
Q206=150
;FEED RATE FOR PLNGNG
Q202=5
;PLUNGING DEPTH
Q211=0
;DWELL TIME AT TOP
Q203=+20
;SURFACE COORDINATE
Q204=50
;2ND SET-UP CLEARANCE
Q212=0.2
;DECREMENT
Q213=3
;NR OF BREAKS
Q205=3
;MIN. PLUNGING DEPTH
Q211=0.25
;DWELL TIME AT DEPTH
Q208=500
;RETRACTION FEED RATE
Q256=0.2
;DIST FOR CHIP BRKNG
Q395=0
;DEPTH REFERENCE
HEIDENHAIN | User's manual for cycle programming | 10/2017
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