Basic Rotation Compensation Via Rotary Axis (Cycle 403, Din/Iso: G403, Software Option 17); Cycle Run; Please Note While Programming - HEIDENHAIN TNC 620 User Manual

BASIC ROTATION compensation via rotary axis (Cycle 403, DIN/
13.5 BASIC ROTATION compensation
via rotary axis (Cycle 403, DIN/
ISO: G403, software option 17)

Cycle run

Touch probe cycle 403 determines a workpiece misalignment by
measuring two points, which must lie on a straight line. The TNC
compensates the determined misalignment by rotating the A, B or
C axis. The workpiece can be clamped in any position on the rotary
table.
1 Following the positioning logic, the TNC positions the touch
probe at rapid traverse (value from FMAX column) (see
"Executing touch probe cycles", page 304) to the programmed
touch point 1. The TNC offsets the touch probe by the safety
clearance in the direction opposite to the defined traverse
direction.
2 Then the touch probe moves to the entered measuring height
and runs the first probing process at the probing feed rate
(column F).
3 Then the touch probe moves to the next starting position
probes the second position.
4 The TNC returns the touch probe to the clearance height and
rotates the rotary axis, which was defined in the cycle, by the
measured value. Optionally you can specify whether the TNC is
to set the determined rotation angle to 0 in the preset table or
in the datum table.

Please note while programming:

Danger of collision!
Ensure that the clearance height is sufficiently
large so that no collisions can occur during the final
positioning of the rotary axis.
If you enter 0 in parameter Q312 Axis for
compensating movement, the cycle automatically
determines the rotary axis to be aligned
(recommended setting). Depending on the sequence
of the probing points, an angle with the actual
direction is determined. The measured angle goes
from the first to the second probing point. If you
select the A, B or C axis as compensation axis in
parameter Q312, the cycle determines the angle,
regardless of the sequence of the probing points.
The calculated angle lies in the range from –90°
to +90°. After alignment, check the position of the
rotary axis.
Before a cycle definition you must have programmed
a tool call to define the touch probe axis.
The TNC stores the measured angle in parameter
Q150.
HEIDENHAIN | TNC 620 | User's manual for cycle programming | 9/2015
2 and
13.5
ISO: G403)
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