HEIDENHAIN iTNC 530 (60642x-04) Cycle programming - Manual (Page 488)

488 Touch Probe Cycles: Automatic Kinematics Measurement
1
8
.4 MEA
S
URE KINEMA
TICS (Cy
c
le 451, DIN/ISO:
G451; Option)
Notes on various calibration methods
 Rough optimization during commissioning after entering
approximate dimensions.
 Number of measuring points between 1 and 2
 Angular step of the rotary axes: Approx. 90°
 Fine optimization over the entire range of traverse
 Number of measuring points between 3 and 6
 The start and end angles should cover the largest possible
traverse range of the rotary axes.
 Position the calibration sphere on the machine table so that on
rotary table axes there is a large measuring circle, or so that on
swivel head axes the measurement can be made at a
representative position (e.g. in the center of the traverse range).
 Optimization of a specific rotary axis position
 Number of measuring points between 2 and 3
 The measurements are made near the rotary axis angle at which
the workpiece is to be machined.
 Position the calibration sphere on the machine table for calibration
at the position subsequently intended for machining.
 Inspecting the machine accuracy
 Number of measuring points between 4 and 8
 The start and end angles should cover the largest possible
traverse range of the rotary axes.
 Determination of the rotary axis backlash
 Number of measuring points between 8 and 12
 The start and end angles should cover the largest possible
traverse range of the rotary axes.