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 forward. 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 to develop a mechanical prototype based on the same principles.
Gripping workpieces just as a chameleon’s tongue grips insects – that is the operating principle of the adaptive shape gripper DHEF from Festo. This unusual gripper can pick up, gather and put down objects of many different shapes without the need for manual adjustment.
The silicone cap of the adaptive shape gripper can fold itself over and grip objects of virtually any shape. This creates a firm and form-fitting hold. The elastic silicone enables the gripper to adapt to a wide range of geometries. When combined with a pneumatic drive, the adaptive shape gripper requires little energy for a secure grip.
Formless, round and sensitive
Unlike the mechanical grippers currently available that can only grip specific components, the adaptive shape gripper is extremely versatile. 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, and 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 useful additional features.
AG Lubricants partners with
Motion Control & Drives
AG Lubricants has partnered with a major player in the South African steel industry to supply high-performance Mobil lubricants, Quaker Houghton industrial fluids and value-added technical services.
Read more...Innovate, accelerate, dominate Festo South Africa
Editor's Choice Pneumatics & Hydraulics
Festo’s latest innovations, revealed through the Ramp Up Campaign, offer a blueprint for performance excellence, using the anatomy of a race car as an analogy to simplify and powerfully communicate how their technologies address industry challenges.
Read more...Smart features increase crane safety
Motion Control & Drives
The newly launched Konecranes S series hoist offers a large bouquet of smart features which not only increase lifting device safety but also deliver a higher level of operator protection.
Read more...Compact, powerful hexapod for high-precision applications
Motion Control & Drives
With the HEX150-125HL, Aerotech is launching the latest generation of its hexapod technology. The compact six-axis positioner combines precise movements with high load capacity and simple integration.
Read more...Hexagon Electrical services electric motor sector
Motion Control & Drives
Hexagon Electrical has expanded its manufacturing and service capabilities to meet the growing demand for customised, high-performance specialised electric motors in heavy engineering, and hazardous industrial and mining applications.
Read more...NORD modular drives for frequently changing motor speeds Bearing Man Group t/a BMG
Motion Control & Drives
BMG has made a substantial investment over the years to ensure assembly, stockholdings and technical support for the Nord range are in line with stringent international quality, safety and environmental standards.
Read more...Medium voltage drive for enhanced energy efficiency and process optimisation Schneider Electric South Africa
Motion Control & Drives
Schneider Electric South Africa has unveiled its cutting-edge Altivar Process ATV6100 medium voltage (MV) drive range, designed to enhance energy efficiency and operational reliability across various industries.
Read more...Powerful high-precision hexapod
Motion Control & Drives
With the HEX150-125HL, Aerotech is launching the latest generation of its hexapod technology. The compact six-axis positioner combines precise movements with high load capacity and simple integration.
Read more...Servicing the electric motor sector
Motion Control & Drives
Hexagon Electrical has expanded its manufacturing and service capabilities to meet the growing demand for customised, high-performance specialised electric motors in heavy engineering, and hazardous industrial and mining applications.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version