Helpful Robotic Hands
The robotic “hands” is a similar example. Multi-joint collaborative control, easy to achieve fine operation.While most robotic arms are fitted with end effectors, most of us will inevitably insist on calling them hands. Science-fiction flicks like Terminator 2: Judgement Day certainly doesn’t help
The robotic “hands” is a similar example. Multi-joint collaborative control, easy to achieve fine operation.While most robotic arms are fitted with end effectors, most of us will inevitably insist on calling them hands. Science-fiction flicks like Terminator 2: Judgement Day certainly doesn’t help, depicting the Terminator as a life-like robotic form that can cut through its flesh to reveal a robotic arm and hand.
In reality, there are many different types of end effectors with most of them resembling something less of a hand that you would imagine. The world of robots manipulating objects is changing each day but there are some end effectors that regularly make appearances on the business end of a robot arm. It might be more beneficial to look less at how the effector appears and more at how it operates.
An end effector, including the human-like robot hands, typically has a set task to do on behalf of the robotic arm (picking up a part or screwing a screw in). Thus, end effectors are typically fitted with a gripper or a tool dedicated to the specific job of the robot.
The most commonly seen end effector is affectionately known as the gripper. This robot hand has traditionally used force closure to manipulate objects. As the words force closure would suggest, the gripper has not been known for its ability to handle fragile objects.
Robotic gripper integrates bionics, mechatronics, materials science, biomedicine and information technology, equipped with self-developed somatosensory control technology, so that the bionic hand can be as flexible as the human hand. There are 6 execution units inside, so that each finger can move independently, and the thumb can move in two directions.
The type of robot gripper from Arcsec Drive
Fingertip stress:10N
Finger transverse stress :8N
Palmar traction :80N
Closed hand force:40N
Thumb stress:12N
Degree of freedom:6
Weight :480g
Voltage:7.4V
Static current ：0.1A
Max current：3A
Fortunately, the gripper and other robot hand styles have undergone quite a bit of change since their introduction. The once gruff gripper is now able to handle items as fragile as a piece of uncooked spaghetti.
Robotic hands that appear and act like human hands are constructed in a way that makes them very similar to the real thing. In fact, most of these hands feature tendons (cables) and fingers that work together much like human hands do to open and close for the manipulation of objects. This simple human-like hand uses multiple motors with one long tendon roped through the fingers to close and relax the hand, and move the fingers independently. This technology combined with exponentially improving AI systems is allowing for an increasing array of uses for the robot hands.
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