Touch Probe Cycles: Automatic Measurement of Workpiece Misalignment
13.3 BASIC ROTATION over two holes (Cycle 401, DIN/ISO: G401)
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
Cycle parameters
Q268 1st hole: center in 1st axis? (absolute):
Center of the first hole in the reference axis of
the working plane. Input range -99999.9999 to
99999.9999
Q269 1st hole: center in 2nd axis? (absolute):
Center of the first hole in the secondary axis of
the working plane. Input range -99999.9999 to
99999.9999
Q270 2nd hole: center in 1st axis? (absolute):
Center of the second hole in the reference axis
of the working plane. Input range -99999.9999 to
99999.9999
Q271 2nd hole: center in 2nd axis? (absolute):
Center of the second hole in the secondary axis
of the working plane. Input range -99999.9999 to
99999.9999
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
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
Q307 Preset value for rotation angle (absolute):
If the misalignment is to be measured against a
straight line other than the reference axis, enter
the angle of this reference line. The TNC will
then calculate the difference between the value
measured and the angle of the reference line for the
basic rotation. Input range -360.000 to 360.000
Q305 Preset number in table?: Enter the preset
number in the table in which the TNC is to save the
determined basic rotation. If you enter Q305=0,
the TNC automatically places the determined
basic rotation in the ROT menu of the Manual
Operation mode. The parameter has no effect
if the misalignment is to be compensated by a
rotation of the rotary table (Q402=1). In this case
the misalignment is not saved as an angular value.
Input range 0 to 99999
NC blocks
5 TCH PROBE 401 ROT OF 2 HOLES
Q268=-37 ;1ST CENTER 1ST AXIS
Q269=+12 ;1ST CENTER 2ND AXIS
Q270=+75 ;2ND CENTER 1ST AXIS
Q271=+20 ;2ND CENTER 2ND AXIS
Q261=-5 ;MEASURING HEIGHT
Q260=+20 ;CLEARANCE HEIGHT
Q307=0 ;PRESET ROTATION
ANG.
Q305=0 ;NUMBER IN TABLE
Q402=0 ;COMPENSATION
Q337=0 ;SET TO ZERO
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