HEIDENHAIN TNC 640 (34059x-01) Cycle programming - Manual (Page 513)

HEIDENHAIN TNC 640 513
1
9
.4 MEA
S
URE KINEMA
TICS (Cy
c
le
451, DIN/ISO: G451; Option)
19.4 MEASURE KINEMATICS
(Cycle 451, DIN/ISO: G451;
Option)
Cycle run
The touch probe cycle 451 enables you to check and, if required,
optimize the kinematics of your machine. Use the 3-D TS touch probe
to measure a HEIDENHAIN calibration sphere that you have attached
to the machine table.
The TNC evaluates the static tilting accuracy. The software minimizes
the spatial error arising from the tilting movements and, at the end of
the measurement process, automatically saves the machine
geometry in the respective machine constants of the kinematics
description.
1 Clamp the calibration sphere and check for potential collisions.
2 In the Manual Operation mode, set the datum in the center of the
sphere, or if Q431=1 or Q431=3 is defined: In the touch probe axis,
manually position the touch probe over the calibration sphere , and
in the working plane, over the sphere center.
3 Select the Program Run mode and start the calibration program.
4 The TNC automatically measures all three axes successively in the
resolution you defined.
5 The TNC saves the measured values in the following
Q parameters:
HEIDENHAIN recommends using the calibration spheres
KKH 250 (ID number 655475-01) or KKH 100 (ID number
655475-02), which have particularly high rigidity and are
designed especially for machine calibration. Please
contact HEIDENHAIN if you have any questions in this
regard.
Parameter number Meaning
Q141 Standard deviation measured in the A axis
(–1 if axis was not measured)
Q142 Standard deviation measured in the B axis
(–1 if axis was not measured)
Q143 Standard deviation measured in the C axis
(–1 if axis was not measured)
Q144 Optimized standard deviation in the A axis
(–1 if axis was not optimized)
Q145 Optimized standard deviation in the B axis
(–1 if axis was not optimized)
Q146 Optimized standard deviation in the C axis
(–1 if axis was not optimized)