HEIDENHAIN iTNC 530 (340 49x-05) Cycle programming User Manual
Page 86
86
Canned Cycles: Drilling
3.7 BA
CK BORING (Cy
c
le
204, DIN/ISO: G204)
U
Workpiece surface coordinate
Q203 (absolute):
Coordinate of the workpiece surface. Input range
-99999.9999 to 99999.9999, alternatively PREDEF
U
2nd setup 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
U
Disengaging direction (0/1/2/3/4)
Q214:
Determine the direction in which the TNC displaces
the tool by the off-center distance (after spindle
orientation). Input of 0 is not permitted.
U
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
Example: NC blocks
11 CYCL DEF 204 BACK BORING
Q200=2
;SETUP 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 COUNTERSINKING
Q255=0
;DWELL TIME
Q203=+20
;SURFACE COORDINATE
Q204=50
;2ND SETUP CLEARANCE
Q214=1
;DISENGAGING DIRECTN
Q336=0
;ANGLE OF SPINDLE
1
Retract tool in the negative ref. axis direction
2
Retract tool in the neg. minor axis direction
3
Retract tool in the positive ref. axis direction
4
Retract tool in the pos. minor axis direction