Touch Probe Cycles: Automatic Datum Setting
14.9 DATUM FROM INSIDE OF CORNER (Cycle 415, DIN/ISO: G415)
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
Cycle parameters
Q263 1st measuring point in 1st axis? (absolute):
Coordinate of the first touch point in the reference
axis of the working plane. Input range -99999.9999
to 99999.9999
Q264 1st measuring point in 2nd axis? (absolute):
Coordinate of the first touch point in the minor axis
of the working plane. Input range -99999.9999 to
99999.9999
Q326 Spacing in 1st axis? (incremental): Distance
between the first and second measuring points in
the reference axis of the working plane. Input range
0 to 99999.9999
Q327 Spacing in 2nd axis? (incremental): Distance
between third and fourth measuring points in the
minor axis of the working plane. Input range 0 to
99999.9999
Q308 Corner? (1/2/3/4): Number identifying the
corner which the TNC is to set as datum. Input
range 1 to 4
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
Q304 Execute basic rotation (0/1)?: Definition of
whether the TNC should compensate workpiece
misalignment with a basic rotation:
0: Do not execute basic rotation
1: Execute basic rotation
Q305 Number in table?: Enter the number in the
datum/preset table in which the TNC is to save the
coordinates of the corner. If Q303=1: If you enter
Q305=0, the TNC automatically sets the display so
that the new datum is on the corner. If Q303=0: If
you enter Q305=0, the TNC writes to line 0 of the
datum table. Input range 0 to 99999
NC blocks
5 TCH PROBE 415 DATUM OUTSIDE
CORNER
Q263=+37 ;1ST POINT 1ST AXIS
Q264=+7 ;1ST POINT 2ND AXIS
Q326=50 ;SPACING IN 1ST AXIS
Q327=45 ;SPACING IN 2ND AXIS
Q308=+1 ;CORNER
Q261=-5 ;MEASURING HEIGHT
Q320=0 ;SET-UP CLEARANCE
Q260=+20 ;CLEARANCE HEIGHT
Q301=0 ;MOVE TO CLEARANCE
Q304=0 ;BASIC ROTATION
Q305=7 ;NUMBER IN TABLE
Q331=+0 ;DATUM
Q332=+0 ;DATUM
Q303=+1 ;MEAS. VALUE
TRANSFER
Q381=1 ;PROBE IN TS AXIS
Q382=+85 ;1ST CO. FOR TS AXIS
Q383=+50 ;2ND CO. FOR TS AXIS
Q384=+0 ;3RD CO. FOR TS AXIS
Q333=+1 ;DATUM
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