Robot sewing machine for constructs pavilion


Sewing may be one of the oldest technical activities of humankind but it’s not one that robots have yet fully mastered.

The complexity of sewing, whether it’s sewing by hand or using a machine, is such that robots – or sophisticated sewing machines – can only perform some relatively simple stitches. But those stitches that the robots or sewing machines can perform are actually very impressive and would be difficult – though not impossible for a human.

On the other hand, a lot of things a human can do – such as stitch together a sleeve and cuff or some other part of the garment, or even sew together the entire garment – is way beyond the realms of possibility for even the most sophisticated robots of today.

Nonetheless, the university in Stuttgart has used Kuka robots to perform a sewing job which can only be described as impressive. Perhaps weird as well, since they stitched together some wood – not a material usually associated with sewing.

A work step in the robotic sewing process: the elastically bent plywood strips are fixed in this position by the robot and guided through a synchronized (Hightex industrial) sewing machine.

In a statement, Kuka, the students and their tutors say their work “combines bionic investigations with innovative robotic manufacturing methods”.

The robot assists by fixing the bent strips of plywood in the desired geometrical configuration and then guiding them through the (Hightex CB4500) industrial sewing machine.

By performing this work step, the Kuka robot of the KR Quantec series helped to build the new research pavilion at the University of Stuttgart. For the first time, the Institute for Computational Design (ICD) and the Institute of Building Structures and Structural Design (ITKE) used industrial sewing technologies for wooden construction.

The design of the extremely lightweight wooden shell was based on the structural morphology of the sand dollar. Sand dollars are a subspecies of sea urchin. This model was chosen because it is particularly suitable for the technical transfer of construction and educational principles.

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