HEIDENHAIN TNC 320 (34055x-06) Cycle programming User Manual
Page 75
BACK BORING (Cycle 204, DIN/ISO: G204)
3.7
3
TNC 320 | User's Manual Cycle Programming | 5/2013
75
Dwell time Q255: Dwell time in seconds at the top
of the bore hole. Input range 0 to 3600.000
Coordinate of workpiece surface Q203 (absolute):
Coordinate of the workpiece surface. Input range
-99999.9999 to 99999.9999
2nd set-up clearance Q204 (incremental):
Coordinate in the spindle axis at which no collision
between tool and workpiece (fixtures) can occur.
Input range 0 to 99999.9999
Disengaging direction (1/2/3/4) Q214: Determine
the direction in which the TNC displaces the tool by
the off-center distance (after spindle orientation);
programming 0 is not allowed
1
: Retract the tool in minus direction of the principle
axis
2
: Retract the tool in minus direction of the minor
axis
3
: Retract the tool in plus direction of the principle
axis
4
: Retract the tool in plus direction of the minor axis
Angle for spindle orientation Q336 (absolute):
Angle at which the TNC positions the tool before
it is plunged into or retracted from the bore hole.
Input range -360.0000 to 360.0000
NC blocks
11 CYCL DEF 204 BACK BORING
Q200=2
;SET-UP CLEARANCE
Q249=+5
;DEPTH OF
COUNTERBORE
Q250=20
;MATERIAL THICKNESS
Q251=3.5
;OFF-CENTER DISTANCE
Q252=15
;TOOL EDGE HEIGHT
Q253=750
;F PRE-POSITIONING
Q254=200
;F COUNTERBORING
Q255=0
;DWELL TIME
Q203=+20
;SURFACE COORDINATE
Q204=50
;2ND SET-UP
CLEARANCE
Q214=1
;DISENGAGING DIRECTN
Q336=0
;ANGLE OF SPINDLE