T13 – Collaborative Research Centre 871: Regeneration of Complex Capital Goods

T13 - Compensation of path errors during dynamic movements in machine tools with electromagnetic linear guides

Electromagnetic linear guides (MF) open up new possibilities for highly dynamic machine tools, as unlike conventional guides, they operate without contact and offer very high precision positioning capabilities. Previous research work in SFB 871 and other DFG projects has shown that MF can be adapted in many ways to improve stiffness, damping, and positioning accuracy—however, there are currently no commercially available machine tools that use linear magnetic guides. The T13 transfer project addresses precisely this issue, with the aim of further developing the technology already researched towards industrially applicable compensation of dynamic path errors.

Motivation

Fast, multi-axis tool movements inevitably result in path errors that limit machining quality. However, combining NC axes with the sensitive positioning capability of MF offers the opportunity to actively compensate for these errors, thereby significantly increasing dynamics and precision. The aim of the project is to develop a holistic, industry-ready control concept that combines MF and NC axes in a common system, reduces the required model parameters, and demonstrates the performance of frequency-selective setpoint distribution.

Project Partners

Beckhoff Automation GmbH & Co. KG

Responsible Institutes

The project is managed by the Institute of Production Engineering and Machine Tools .