HEIDENHAIN TNC 320 (340 55x-05) Cycle programming - Manual (Page 352)

352 Touch Probe Cycles: Automatic Datum Setting
15.1
1
D
A
TUM IN T
O
UCH PR
OBE AXIS (Cy
c
le 41
7,
DIN/ISO: G41
7
)
Cycle parameters
U 1st meas. point 1st axis Q263 (absolute): Coordinate
of the first touch point in the reference axis of the
working plane. Input range -99999.9999 to
99999.9999
U 1st meas. point 2nd axis Q264 (absolute):
Coordinate of the first touch point in the minor axis of
the working plane. Input range -99999.9999 to
99999.9999
U 1st meas. point 3rd axis Q294 (absolute): Coordinate
of the first touch point in the touch probe axis. Input
range -99999.9999 to 99999.9999
U Set-up clearance Q320 (incremental): Additional
distance between measuring point and ball tip. Q320
is added to SET_UP (touch probe table). Input range
0 to 99999.9999
U 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
U Datum number in table Q305: Enter the number in
the datum or preset table in which the TNC is to save
the coordinate. If you enter Q305=0, the TNC
automatically sets the display so that the new datum
is on the probed surface. Input range 0 to 2999
U New datum in TS axis Q333 (absolute): Coordinate
in the touch probe axis at which the TNC should set
the datum. Default setting = 0. Input range
-99999.9999 to 99999.9999
U Measured-value transfer (0, 1) Q303: Specify
whether the determined datum is to be saved in the
datum table or in the preset table:
–1: Do not use. Is entered by the TNC when old
programs are read in (see “Saving the calculated
datum” on page 314).
0: Write determined datum in the active datum table.
The reference system is the active workpiece
coordinate system.
1: Write determined datum in the preset table. The
reference system is the machine coordinate system
(REF system).
Example: NC blocks
5 TCH PROBE 417 DATUM IN TS AXIS
Q263=+25 ;1ST POINT 1ST AXIS
Q264=+25 ;1ST POINT 2ND AXIS
Q294=+25 ;1ST POINT 3RD AXIS
Q320=0 ;SET-UP CLEARANCE
Q260=+50 ;CLEARANCE HEIGHT
Q305=0 ;NO. IN TABLE
Q333=+0 ;DATUM
Q303=+1 ;MEAS. VALUE TRANSFER
X
Y
Q264
Q263
1
X
Z
Q260
Q294
1
SE
T_UP(TCHPR
OBE.TP)
+
Q320