Kinematicsopt - HEIDENHAIN iTNC 530 HSCI Technical Manual

6.5.5 KinematicsOpt

Functions
Prerequisites
746
Accuracy requirements are becoming increasingly stringent, particularly in the
area of 5-axis machining. Complex parts are required to be manufactured with
precision and reproducible accuracy even over long periods.
KinematicsOpt (software option 48) is an important component that helps you
meet these complex requirements: A 3-D touch probe cycle measures the
rotary axes on your machine fully automatically, regardless of whether they
are used in rotary-table or head configurations. A calibration sphere is fixed at
any position on the machine table, and measured with a resolution that you
define. In the cycle definition, you only have to define for each rotary axis the
area that you want to measure.
From the measured values, the TNC calculates the static tilting accuracy. The
software minimizes the spatial error arising from the tilting movement and, at
the end of the measurement process, automatically saves the machine
geometry in the respective machine constants of the kinematics table.
When using the cycles for KinematicsOpt, please also refer to the Touch
Probe Cycles User's Manual.
Testing the static tilting accuracy by probing different points on a calibration

sphere with a 3-D workpiece touch probe.
Optimizing the static tilting accuracy by adjusting the kinematics description.

Backing up and restoring the kinematics data that can be changed with this

software.
The software options 48 (KinematicsOpt) and 8 (software option 1) must be

enabled.
Feature Content Level (FCL) 3 or higher must be enabled.

The 3-D touch probe used for the measurement must be calibrated.

A calibration sphere with an exactly known radius and sufficient rigidity must

be attached to the machine table.
The kinematics must be described in the new table format (columns: KEY,

AXIS, COORD, ...)
The kinematics description of the machine must be complete and correct.

The transformation values must be entered with an accuracy of approx.
1 mm.
All machine axes involved must have adequate positioning accuracy.

The geometry of the machine must have been measured.

The machine datum (MP960.x) must be defined for the rotary axes (is not

measured in the cycle).
The machine parameters MP6600 to MP6602 must be defined.

The cycles use the value entered in MP420 or MP430 to determine whether

the respective axis is a rotary axis or a Hirth axis.
Option 52 KinematicsComp, if rotational position errors of the rotary axes

are to be compensated
HEIDENHAIN Technical Manual iTNC 530 HSCI