HEIDENHAIN TNC 620 (340 56x-03) Cycle programming - Manual (Page 432)

432 Touch Probe Cycles: Automatic Kinematics Measurement
1
8
.4 MEA
S
URE KINEMA
TICS (Cy
c
le
451, DIN/ISO: G451; Option)
Cycle parameters
8 Mode (0=Check/1=Measure) Q406: Specify whether
the TNC should check or optimize the active
kinematics:
0: Check the active machine kinematics. The TNC
measures the kinematics in the rotary axes you have
defined, but it does not make any changes to it. The
TNC displays the results of measurement in a
measurement log
1: Optimize the active machine kinematics. The TNC
measures the kinematics in the rotary axes you have
defined and optimizes the position of the rotary
axes of the active kinematics.
8 Exact calibration sphere radius Q407: Enter the
exact radius of the calibration sphere used. Input
range 0.0001 to 99.9999
8 Set-up clearance Q320 (incremental): Additional
distance between measuring point and ball tip. Q320
is added to MP6140. Input range 0 to 99999.9999,
alternatively PREDEF
8 Retraction height Q408 (absolute): Input range
0.0001 to 99999.9999
„ Input 0:
Do not move to any retraction height. The TNC
moves to the next measuring position in the axis to
be measured. Not allowed for Hirth axes! The TNC
moves to the first measuring position in the series
A, then B, then C.
„ Input >0:
Retraction height in the untilted workpiece
coordinate system to which the TNC positions
before a rotary axis positioning in the spindle axis.
Also, the TNC moves the touch probe in the
working plane to the datum. The probe monitoring
is not active in this mode. Define the positioning
velocity in parameter Q253.
Example: Saving and checking the kinematics
4 TOOL CALL "TASTER" Z
5 TCH PROBE 450 SAVE KINEMATICS
Q410=0 ;MODE
Q409=5 ;MEMORY DESIGNATION
6 TCH PROBE 451 MEASURE KINEMATICS
Q406=0 ;MODE
Q407=12.5 ;SPHERE RADIUS
Q320=0 ;SET-UP CLEARANCE
Q408=0 ;RETR. HEIGHT
Q253=750 ;F PRE-POSITIONING
Q380=0 ;REFERENCE ANGLE
Q411=-90 ;START ANGLE A AXIS
Q412=+90 ;END ANGLE A AXIS
Q413=0 ;INCID. ANGLE A AXIS
Q414=0 ;MEAS. POINTS A AXIS
Q415=-90 ;START ANGLE B AXIS
Q416=+90 ;END ANGLE B AXIS
Q417=0 ;INCID. ANGLE B AXIS
Q418=2 ;MEAS. POINTS B AXIS
Q419=-90 ;START ANGLE C AXIS
Q420=+90 ;END ANGLE C AXIS
Q421=0 ;INCID. ANGLE C AXIS
Q422=2 ;MEAS. POINTS C AXIS
Q423=4 ;NO. OF MEAS. POINTS
Q431=0 ;PRESET
Q432=0 ;BACKLASH, ANG. RANGE