Touch Probe Cycle 452 (Preset Compensation) - HEIDENHAIN iTNC 530 HSCI Technical Manual

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Touch probe cycle

COMPENSATION)

Touch probe cycle 452 can be used to optimize the kinematic transformation

chain of the machine. Then the TNC corrects the workpiece coordinate

system in the kinematics model in such a way that the current preset is in the

center of the calibration sphere after optimization.

Cycle 452 corrects the transformations up to the last active rotary axis (like

Mode 1 of Cycle 451).

After the last measured rotary axis, it is attempted to set the preset at the

center of the calibration sphere via the kinematics transformations. The next

possible transformations for this compensation are searched for after the last

measured rotary axis of the transformation chain.

An error message is output if the preset cannot be completely compensated.

Cycle 452 can be used, for example, to compensate specific thermal behavior,

and also to adapt the kinematics of tool changer heads.

Example 1 for the application of Cycle 452:

Adjust tool changer head (A axis)

SUBFILE: Head 1

Once a head has been optimized (A and C axis, SUBFILE Head 1 and

MAINFILE), it must be used to set the preset in the center of the calibration

sphere (Cycle 451). Then Cycle 452 is simply used in combination with the

second head (SUBFILE: Head 2) to optimize the A axis with preset

compensation.

The transformations shown in green are recognized as compensation

transformations, and the preset is thus placed at the sphere center.

Example 2 for the application of Cycle 452:

Compensation of thermal behavior

6.5 Tilting and swivel axes

SUBFILE: Head 2