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3D Technology put to use for gaining precision in the large machine tool

We are developing a new system for the volumetric verification of the positioning of large-sized machine tools

IK4-TEKNIKER is developing a new system for the volumetric verification of the positioning of large-sized machine tools in order to meet the growing demand of companies for systems with full geometrical verification systems.

Right now, the manufacture of large components while maintaining high precision levels has required that machine-tool manufacturers come up with designs on a new scale, while maintaining the precision of smaller machines. The fine-tuning and verification of these machines require more sophisticated systems than the ones generally used, so that the behaviour of the machine can be checked throughout its volume of work.

The system developed by the Basque R+D centre uses 3D technology to accurately measure the positioning, and makes use of the most innovative measuring equipment in the field (the Leica AT901-MR laser tracker and the Wyler BlueLEVEL levels), supported by a robust, multilateration-based framework.

The result is an advanced service that can be rapidly executed, and which allows the positioning error in the complete volume of the machine to be characterised, by providing a measurement uncertainty that suits the needs of the application.

The reduction in the time needed to carry out the verification of the machine’s positioning means greater stability in the results, and cost savings. A set of geometric parameters (straightness, rectangularity and linear positioning) are obtained from the results of the measurements. These allow one to get a better understanding of the machine and even to feed a compensation system.