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.
Novel bearing steel next generation of aeroengines SKF South Africa
Motion Control & Drives
SKF continues to re-imagine intelligent and clean rotation with the development of an innovative temperature-resistant, corrosion-tolerant steel called ARCTIC15 designed for aeroengine bearings.
Read more...Products from maxon
Motion Control & Drives
A wide range of new products is available from motion control specialist, maxon. with a diverse technology portfolio ranging from highly integrated robotic actuators to powerful servo drives and controllers.
Read more...Actuators for precise hexapod movements
Motion Control & Drives
Aerotech, manufacturer of high-performance motion control and automation systems, is expanding its Automation1 platform. These compact hexapod devices enable the complete integration of six-axis motion systems into existing control
Read more...SEW-EURODRIVE service centre transforms future of drive repairs SEW-EURODRIVE
Motion Control & Drives
In a momentous step for the local industrial gearbox and drives market, SEW-EURODRIVE South Africa has formally opened a new service and repair facility alongside its headquarters in Aeroton,
Read more...Precision meets performance: The ELGD Axes Family from Festo Festo South Africa
Motion Control & Drives
Festo has introduced the ELGD axes family, engineered for the demands of future-focused industries. With cutting-edge guide technology, exceptional rigidity and high load capacity, these axes deliver more performance within the same installation footprint.
Read more...Condition monitoring in hazardous areas SKF South Africa
Motion Control & Drives
SKF is further strengthening its condition monitoring offer portfolio by a newly developed hazardous area version of its Microlog Analyzer dBX portable vibration analyser.
Read more...Rip-and-ship solution speeds up nuclear decommissioning project
Motion Control & Drives
When removing steam generators from decommissioned nuclear reactor buildings, the most economical method is to remove them in one piece. Mammoet was commissioned by Framatome to support with the removal of four steam generators from PreussenElektra’s Nuclear Power Plant Unterweser in Germany.
Read more...WearCheck turns the focus on friction modifiers Wearcheck
Motion Control & Drives
One of the most important features of a lubricant is the reduction of friction between two surfaces.A dditives like friction modifiers are added to perform this function. Wearcheck turns the focus on friction modifiers
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