Cycle Parameters - HEIDENHAIN TNC 620 User Manual

PRESET COMPENSATION (Cycle 452, DIN/ISO: G452, option)

Cycle parameters

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 . 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
Reference angle Q380 (absolute): Reference
angle (basic rotation) for measuring the measuring
points in the active workpiece coordinate system.
Defining a reference angle can considerably enlarge
the measuring range of an axis. Input range 0 to
360.0000
Start angle A axis Q411 (absolute): Starting angle in
the A axis at which the first measurement is to be
made. Input range -359.999 to 359.999
End angle A axis Q412 (absolute): Ending angle in
the A axis at which the last measurement is to be
made. Input range -359.999 to 359.999
Angle of incid. A axis Q413: Angle of incidence in
the A axis at which the other rotary axes are to be
measured. Input range -359.999 to 359.999
Number meas. points A axis Q414: Number of
probe measurements with which the TNC is to
measure the A axis. If the input value = 0, the TNC
does not measure the respective axis. Input range 0
to 12
Start angle B axis Q415 (absolute): Starting angle in
the B axis at which the first measurement is to be
made. Input range -359.999 to 359.999
End angle B axis Q416 (absolute): Ending angle in
the B axis at which the last measurement is to be
made. Input range -359.999 to 359.999
HEIDENHAIN | TNC 620 | User's manual for cycle programming | 9/2015
Calibration program
4 TOOL CALL "TCH PROBE" Z
5 TCH PROBE 450 SAVE KINEMATICS
Q410=0 ;MODE
Q409=5 ;MEMORY DESIGNATION
6 TCH PROBE 452 PRESET
COMPENSATION
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
Q432=0 ;BACKLASH, ANG.
RANGE
17
17.5
467