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LWR II
Light-Weight Robot II
The DLR Institute of Robotics and Mechatronics, a leader in robotic research, presented a new generation of light-weight robots at the 2000 Hanover Fair. DLR's Light-weight Robot II has an outstanding ratio of payload to total mass. It can move over 7 kg at full speed but weighs only 18 kg.
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Data Sheet
Weight, payload, speed, joints
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Mechanics
The design of the mechanical parts and the integration of all electronic components was done by using modern software technics like virtual prototyping.
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Sensors
Each of the Lightweight Robot´s joint contains three different sensors: a joint torqe sensor, a joint position sensor and a motor position sensor. Due to this large number of sensors, it is possible to use progressive control algorthms like impedance control and enables us to control an elastic robot arm.
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Control
The control of DLR Lightweight Robot is build up hirachic with multiple layers which have different sampling rates. The inner and fastest one is the motor control loop, followed by joint control and finally the over all control of the whole robot. Measuring motor position, joint position and joint torque, the controller is provided with three sensor signals for each joint.
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Light - Weight Robots
LWR I
LWR II
Safe Robots
Automatic Assembly
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