Pumpkin harvesting robotic end-effector

Gravity Robotic End Effector

The ability to easily manipulate objects in a zero gravity environment will play a key role in future space activities. Emphasis will be placed on robotic manipulation. This will serve to increase astronaut safety and utility in addition to several other benefits. It is the aim of this research to develop control laws for the zero gravity robotic end effector designed by engineers at NASA Godda...

A Robotic End-Effector for Grasping Sacks

This article describes an end-effector and a method for manipulating deformable objects with undefined shapes and geometry such as sacks and bags. The first prototype end-effector, designed for applications in the U.S. Postal Service, comprises two parallel rollers with gripping sur-faces, where the rollers are pushed towards each other. When the end-effector comes onto contact with any portion...

A Robotic End-Effector for Grasping Postal Sacks

This article describes a new class of end-effectors that can be used with robotic and material handling devices for grabbing and holding deformable objects with undefined shapes such as sacks and bags. These end-effectors can grab and hold filled sacks from any point on the sack and regardless of the sack orientation and position. The first prototype end-effector, designed for U.S. Postal Servi...

Robotic End-Effector Impedance Control without Expensive Torque/Force Sensor

A novel low-cost impedance control structure is proposed for monitoring the contact force between end-effector and environment without installing an expensive force/torque sensor. Theoretically, the end-effector contact force can be estimated from the superposition of each joint control torque. There have a nonlinear matrix mapping function between each joint motor control input and end-effecto...

A Robotic End Effector for Inspection of Storage Tanks