Cycle Parameters - HEIDENHAIN TNC 620 User Manual

15
Touch Probe Cycles: Automatic Datum Setting
15.10 DATUM CIRCLE CENTER (Cycle 416, DIN/ISO: G416, software
option 17)

Cycle parameters

Center in 1st axis Q273 (absolute): Bolt hole circle
center (nominal value) in the reference axis of
the working plane. Input range -99999.9999 to
99999.9999
Center in 2nd axis Q274 (absolute): Bolt hole
circle center (nominal value) in the minor axis of
the working plane. Input range -99999.9999 to
99999.9999
Nominal diameter Q262: Enter the approximate
bolt hole circle diameter. The smaller the hole
diameter, the more exact the nominal diameter
must be. Input range 0 to 99999.9999
Angle of 1st hole Q291 (absolute): Polar coordinate
angle of the first hole center in the working plane.
Input range -360.0000 to 360.0000
Angle of 2nd hole Q292 (absolute): Polar coordinate
angle of the second hole center in the working
plane. Input range -360.0000 to 360.0000
Angle of 3rd hole Q293 (absolute): Polar coordinate
angle of the third hole center in the working plane.
Input range -360.0000 to 360.0000
Measuring height in the touch probe axis Q261
(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
Clearance height Q260 (absolute): Coordinate in
the touch probe axis at which no collision between
touch probe and workpiece (fixtures) can occur.
Input range -99999.9999 to 99999.9999
Datum number in table Q305: Enter the number
in the datum or preset table in which the TNC is to
save the coordinates of the bolt-hole circle center. If
you enter Q305=0, the TNC automatically sets the
display so that the new datum is on the bolt hole
center. Input range 0 to 2999
New datum for reference axis Q331 (absolute):
Coordinate in the reference axis at which the TNC
should set the bolt-hole center. Default setting = 0
input range -99999.9999 to 99999.9999
New datum for minor axis Q332 (absolute):
Coordinate in the minor axis at which the TNC
should set the bolt-hole center. Default setting = 0
input range -99999.9999 to 99999.9999
358
NC blocks
5 TCH PROBE 416 DATUM CIRCLE
CENTER
Q273=+50 ;CENTER IN 1ST AXIS
Q274=+50 ;CENTER IN 2ND AXIS
Q262=90 ;NOMINAL DIAMETER
Q291=+34 ;ANGLE OF 1ST HOLE
Q292=+70 ;ANGLE OF 2ND HOLE
Q293=+210 ;ANGLE OF 3RD HOLE
Q261=-5 ;MEASURING HEIGHT
Q260=+20 ;CLEARANCE HEIGHT
Q305=12 ;NO. IN TABLE
Q331=+0 ;DATUM
Q332=+0 ;DATUM
Q303=+1 ;MEAS. VALUE
TRANSFER
Q381=1 ;PROBE IN TS AXIS
TNC 620 | User's Manual Cycle Programming | 3/2014