SCHUNK opens new fields of application in handling with bio-inspired adhesion mechanisms; in the video an piack and place application for the elektronic industry.
The gripper technology ADHESO from SCHUNK results from a closer look at nature: with the help of adhesive forces, geckos are moving head first over smooth surfaces for millions of years.
Gripping in a sensitive way for numerous advantages
Thereby the advantages are clearly visible: components can be gripped in a sensitive way, without leaving any residues and without requiring additional energy. The solutions are always individually developed and are as diverse as the applications themselves.
With this system it is possible to handle:
- Glass fibers as light as feathers
- Smallest SMD components
- Micro-mechanical parts
- Sensitive battery components
- Plastic films
It is also possible to handle automotive or mechanical engineering components of a weight of 15 kg and more. Automated separation of breathable components is also feasible.
Gripping by ADHESO is a natural solution based on the principle of adhesion
The bionic inspired gripper technology ADHESO is based on the principle of adhesion, using the intermolecularly acting Van der Waals forces for handling. The patented surface architecture is made of special polymers and is optimized by numerical simulation. The result is a structure of extremely finely structured legs, which adheres to the different materials and objects.
The structure is gently pressed onto the workpiece during the gripping by ADHESO process, thus increasing the contact surface, and the Van der Waals forces can start acting on the workpiece.
This effect can be reversed by applying a slight pressure/rotary movement so that the gripper can be loosened residue-free from the handling object. The alternative use of a wiper ensures that the object is gently put down.
The large variety of variants due to individual design
The respective adhesive forces and removal of ADHESO depend on the variation of material, topography, and miniaturization, and is customized to the different requirements of the relevant environment. Therefore, the adhesive structures can be adapted application-specific to the required size and the loading condition (horizontal/vertical), and can be designed transparent, translucent or opaque.
This is the big advantage: the high degree of individualization ensures that components with dimensions of a few hundred micrometers can be handled as reliably as those measuring several meters.
Experienced application specialists of the SCHUNK team support the users during the design and planning phase. If desired, users can have their application tested under realistic conditions.
Effort, Costs and Maintenance
Effort and costs for installation and commissioning are minimal, since the adhesive technology is gentle to the components, low-noise, and doesn’t require compressed air, vacuum or current. Neither for gripping nor for maintaining the gripping force an external energy supply is necessary.
In case of a power failure in the handling system, the holding forces of the gripper are reliably maintained. SCHUNK ADHESO allows gripping times of < 100 ms: it can be used in conventional industrial environments, but also in cleanrooms and vacuum environments.
In the field of micro handling, repetitive positioning accuracies of < 0.01 mm can be achieved with this technology and it can be also used in collaborative applications. The ADHESO gripper has a bayonet lock and therefore the grippers can be exchanged in just a few simple steps.