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15
Touch Probe Cycles: Automatic Workpiece Inspection
15.6 MEASURE HOLE OUTSIDE (Cycle 422, DIN/ISO: G422)
Cycle parameters
Q273 Center in 1st axis (nom. value)? (absolute):
Center of the stud in the reference axis of the
working plane. Input range -99999.9999 to
99999.9999
Q274 Center in 2nd axis (nom. value)? (absolute):
Center of the stud in the secondary axis of
the working plane. Input range -99999.9999 to
99999.9999
Q262 Nominal diameter?: Enter the diameter of the
stud. Input range 0 to 99999.9999
Q325 Starting angle? (absolute): Angle between
the reference axis of the working plane and the first
touch point. Input range -360.000 to 360.000
Q247 Intermediate stepping angle? (incremental):
Angle between two measuring points. The algebraic
sign of the stepping angle determines the direction
of rotation (negative = clockwise). If you wish to
probe a circular arc instead of a complete circle,
then program the stepping angle to be less than
90°. Input range -120.0000 to 120.0000
Q261 Measuring height in probe axis? (absolute):
Coordinate of the ball tip center (= touch point) in
the touch probe axis in which the measurement is
to be made. Input range -99999.9999 to 99999.9999
Q320 Set-up clearance? (incremental): Additional
distance between measuring point and ball tip.
Q320 is added to SET_UP in the touch probe table.
Input range 0 to 99999.9999
Q260 Clearance height? (absolute): coordinate in
the touch probe axis at which no collision between
tool and workpiece (fixtures) can occur. Input range
-99999.9999 to 99999.9999
Q301 Move to clearance height (0/1)?: Definition
of how the touch probe is to move between the
measuring points:
0: Move at measuring height between measuring
points
1: Move at clearance height between measuring
points
Q277 Maximum limit of size for stud?: Maximum
permissible diameter for the stud Input range 0 to
99999.9999
Q278 Minimum limit of size for stud?: Minimum
permissible diameter for the stud. Input range 0 to
99999.9999
392
NC blocks
5 TCH PROBE 422 MEAS. CIRCLE
HEIDENHAIN | TNC 320 | User's manual for cycle programming | 9/2016
OUTSIDE
Q273=+50
;CENTER IN 1ST AXIS
Q274=+50
;CENTER IN 2ND AXIS
Q262=75
;NOMINAL DIAMETER
Q325=+90
;STARTING ANGLE
Q247=+30
;STEPPING ANGLE
Q261=-5
;MEASURING HEIGHT
Q320=0
;SET-UP CLEARANCE
Q260=+10
;CLEARANCE HEIGHT
Q301=0
;MOVE TO CLEARANCE
Q277=35.15
;MAXIMUM LIMIT
Q278=34.9
;MINIMUM LIMIT
Q279=0.05
;TOLERANCE 1ST
CENTER
Q280=0.05
;TOLERANCE 2ND
CENTER
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