Cycle Parameters - HEIDENHAIN TNC 620 User Manual

14
Touch Probe Cycles: Automatic Datum Setting
14.12 DATUM AT CENTER OF 4 HOLES (Cycle 418, DIN/ISO: G418)

Cycle parameters

1st hole: Center in 1st axis Q268 (absolute):
Center of the first hole in the reference axis of
the working plane. Input range -99999.9999 to
99999.9999
1st hole: Center in 2nd axis Q269 (absolute):
Center of the first hole in the minor axis of
the working plane. Input range -99999.9999 to
99999.9999
2nd hole: Center in 1st axis Q270 (absolute):
Center of the second hole in the reference axis
of the working plane. Input range -99999.9999 to
99999.9999
2nd hole: Center in 2nd axis Q271 (absolute):
Center of the second hole in the minor axis of
the working plane. Input range -99999.9999 to
99999.9999
3rd center in 1st axis Q316 (absolute): center of
the 3rd hole in the reference axis of the working
plane. Input range -99999.9999 to 99999.9999
3rd center in 2nd axis Q317 (absolute): center of
the 3rd hole in the minor axis of the working plane.
Input range -99999.9999 to 99999.9999
4th center in 1st axis Q318 (absolute): center of
the 4th hole in the reference axis of the working
plane. Input range -99999.9999 to 99999.9999
4th center in 2nd axis Q319 (absolute): center of
the 4th hole in the minor axis of the working plane.
Input range -99999.9999 to 99999.9999
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 line intersection.
If Q303=1: If you enter Q305=0, the TNC
automatically sets the display so that the new
datum is at the intersection of the connecting lines.
If Q303=0: If you enter Q305=0, the TNC writes to
line 0 of the datum table. Input range 0 to 99999
New datum for reference axis Q331 (absolute):
Coordinate in the reference axis at which the
TNC should set the calculated intersection of the
connecting lines. Default setting = 0 input range
-99999.9999 to 99999.9999
374
NC blocks
5 TCH PROBE 418 DATUM FROM 4
HEIDENHAIN | TNC 620 | User's manual for cycle programming | 9/2015
HOLES
Q268=+20 ;1ST CENTER 1ST AXIS
Q269=+25 ;1ST CENTER 2ND AXIS
Q270=+150;2ND CENTER 1ST AXIS
Q271=+25 ;2ND CENTER 2ND AXIS
Q316=+150;3RD CENTER 1ST AXIS
Q317=+85 ;3RD CENTER 2ND AXIS
Q318=+22 ;4TH CENTER 1ST AXIS
Q319=+80 ;4TH CENTER 2ND AXIS
Q261=-5 ;MEASURING HEIGHT
Q260=+10 ;CLEARANCE HEIGHT
Q305=12 ;NO. 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=+0 ;DATUM