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Cycle parameters – HEIDENHAIN TNC 620 (81760x-02) Cycle programming User Manual

Page 451

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MEASURE KINEMATICS (Cycle 451, DIN/ISO: G451, option)

17.4

17

TNC 620 | User's Manual Cycle Programming | 2/2015

451

Cycle parameters

Mode (0=Check/1=Measure) Q406: Specify
whether the TNC should check or optimize the
active kinematics:

0

: Check active 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 active 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.
Exact calibration sphere radius Q407: Enter the
exact radius of the calibration sphere used. Input
range 0.0001 to 99.9999
Set-up clearance Q320 (incremental): Additional
distance between measuring point and ball tip.
Q320 is added to SET_UP in the touch probe table.
Input range 0 to 99999.9999; alternatively

PREDEF

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
sequence 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. Probe monitoring is
not active in this mode. Define the positioning
velocity in parameter Q253.

Feed rate for pre-positioning Q253: Traversing
speed of the tool in mm/min during positioning.
Input range 0.0001 to 99999.9999; alternatively
FMAX, FAUTO, PREDEF

Saving and checking the kinematics

4 TOOL CALL "TCH PROBE" 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 PROBE POINTS

Q431=0

;PRESET

Q432=0

;BACKLASH, ANG.

RANGE