Chameleon’s tongue for industrial automation wins design prizes

Adaptive shape gripper DHEF: like a chameleon’s tongue, it reliably grasps irregular, round and sensitive objects. Festo’s gripper won the internationally acclaimed iF Design Award and Red Dot Design Award for this extraordinary gripping concept.

Festo’s adaptive shape gripper DHEF grabs prestigious awards

Grasping workpieces like a chameleon’s tongue – that’s the functional principle of Festo’s adaptive shape gripper DHEF. The gripper can thus pick, gather and place objects of many different shapes without any need for manual changeovers. This is why it won renowned distinctions in 2020 including the iF Design Award and the Red Dot Design Award.

The iF Design Award is one of the world’s most important design prizes. It honours design achievements in all disciplines: product, packaging, communication and service design, architecture and interior design, as well as professional concepts. Red Dot is synonymous with being amongst the best in design and business. As an international design competition, the Red Dot Design Award is intended for all who want to distinguish their business activities by means of design.

Formless, round, sensitive

Unlike the mechanical grippers currently available on the market that can only grip specific components, the adaptive shape gripper is extremely flexible. It can even manage components with freely formed shapes and round geometries. The absence of sharp edges makes it ideal for gripping sensitive objects such as air nozzles or trim strips. In principle, the gripper can pick up several parts in one movement, for example nuts from a bowl.

This means that the bionic gripper can be used to handle small parts in classic machine building, in the electronic or automotive industry, in supply units for packaging installations, for human-robot interaction during assembly tasks or for prosthetic extensions in medical technology.

Practical product characteristics

The gripper has an elastic silicone membrane that is flexible and pliable; once it is supplied with compressed air and the standardised robot interface with integrated air connections has been added, it is ready to be used as a practical automation component. The standard sensor slot for position sensing as well as the bayonet lock for easy replacement of the cap are additional useful features.

Nature as a model

The unique combination of force and form fitting of the chameleon’s tongue can be observed when it is on the hunt for insects. Once the chameleon has its prey in its sights, its tongue shoots out like a rubber band. Just before the tip of the tongue reaches the insect, it retracts in the middle whilst the edges continue to move forwards. This allows the tongue to adapt to the shape and size of the prey and firmly enclose it. The prey sticks to the tongue and is pulled in as though caught on a fishing line. The Festo Bionic Learning Network with researchers from the University of Oslo used these observations when developing a prototype with the name “FlexShapeGripper”.

www.festo.com/dhef

Festo is a global player and an independent family-owned company with headquarters in Esslingen am Neckar, Germany. The company supplies pneumatic and electrical automation technology to 300,000 customers of factory and process automation in over 35 industries. The products and services are available in 176 countries. With about 21,200 employees in over 250 branch offices in 61 countries worldwide, Festo achieved a turnover of around €3.2 billion in 2018. Each year around 8 % of this turnover is invested in research and development.About Festo:

In this learning company, 1.5 % of turnover is invested in basic and further training. Yet training services are not only provided for Festo’s own staff – Festo Didactic SE also supplies basic and further training programmes in the field of automation technology for customers, students and trainees.

Further information:

Press text and images are also available online at http://www.press.festo.com

For queries please contact:

Festo SE & Co. KG

Christopher Haug, Customer Magazine and Technical Press

phone: +49 711-347 4032, E-Mail: christopher.haug@festo.com

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