Development of a Self-Adaptive Gripper and Implementation of a Gripping Reflex to Increase the Dynamic Payload Capacity
Marc Manz, Sebastian Bartsch, Marc Simnofske, Frank Kirchner
In In Proceedings of ISR 2016, (ISR-2016), 21.6.-22.6.2016, München, VDE VERLAG GMBH, pages 56-62, Jun/2016. ISBN: 978-3-8007-4231-8.
This paper describes the development of a two finger self-adaptive gripper and the implementation of a gripping reflex to
increase the payload-to-weight ratio. The self-adaptive finger mechanism is designed in order to grasp objects with parallel
and nonparallel gripping surfaces. The kinematic is optimized to gain a suitable force distribution over the gripping surface
to provide a maximum holding torque if objects with parallel gripping surfaces have to be manipulated. Depending on
dynamic load affecting the gripped object the proposed grasping reflex increases the grip force to guarantee a stable
gripping process. The intention for this implementation is the possible usage of a smaller and thereby lighter motor for a
given manipulation problem. Normally the motor is chosen due to the nominal performance which has to cover every use
case including the dynamic loads, but mostly these dynamic loads arise only temporarily. Experiments prove the eligibility
to increase the performance of a gripping system by using the proposed gripping reflex.