Robotics
Cooperation between Nabtesco and Keba
Cycloidal gearbox supplier Nabtesco and controller manufacturer Keba are pooling their expertise to produce industrial robots "with the highest accuracy available on the market", according to the company.
Gearbox effects have a strong influence on the path accuracy of robots. Nabtesco and Keba have therefore been working on this topic for many years - so far independently of each other: while Nabtesco is constantly increasing the accuracy of the gears, Keba is continuously improving the models for compensating for robot inaccuracies in the software. However, determining the relevant parameters is very time-consuming due to a lack of transparency. The two companies have therefore decided to work together to "enable the most accurate robot in the world". This involves the targeted integration of gearbox-specific data and characteristics - directly from the manufacturer - into the robot controller.
The aim of the cooperation between Nabtesco and Keba is to enable customers to manufacture robots with a point or path accuracy in the hundredths of a millimeter range. This opens up interesting opportunities for robot, machine and plant manufacturers: In future, high-precision handling and machining tasks can be carried out robot-based with the precision of a machine tool.
Two levels are planned: a Nabtesco add-on with generalized data of a specific gearbox model and an additional upgrade for even higher accuracy with the specific data of the gearboxes ultimately installed. The project is currently in the test phase. An initial pioneer application is being realized in collaboration with autonox Robotics.
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