Heidenhain software routines helps compensate for machining spatial errors

Heidenhain (GB), the supplier of encoders, digital readouts and CNC systems, has developed software routines that help compensate for the effects of rotary table/swivel head spatial error, geometrical positioning and component error in machine axes.

The developments are expected to have significant impact on multi-axis machining applications; in particular, eliminating relatively long and complicated set-up times for complex, extended-cycle workpieces subjected to five-axis machining. Using a Heidenhain touch probe, the KinematicsOpt software automatically measures a machine's rotary axes, whether rotary table, tilting table or swivel head, providing users with a quick, easy-to-use fixed cycle that will help ensure machine positioning is consistently accurate. Regular use of the 5 min fixed cycle provides users with an automatic route to check axis positioning and to adjust accordingly. From the measured values, the Heidenhain TNC control system can calculate static tilting accuracy and the software will automatically minimise any resulting spatial error. At the end of the measurement process, the system will automatically store the appropriate machine geometry in the respective kinematics table or signal an alarm if the measured deviation is beyond a preset limit.