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Robot Hand

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Namiki partnered with Gifu University and developed a flexible and high power robot hand for ImPACT (Impusing PAradigm Change through disruptive Technologies program), which is led by the Cabinet Office, and the Council for Science, Technology, and Innovation.
Although the hand is relatively small, with a max. length of 308mm and weight of 2,450g, it has the flexibility of 4 fingers, 16 joints, and 12 degrees of freedom. It can exert fingertip force 150N, and has the potential to retain hold on a 600N object even without electricity.
Existing robot hands require a constant and high current input to maintain their hold on objects. In contrast, our patented no electricity locking system, dyNALOX LOGO(*1), installed in each joint of the hand enables the fingers to maintain their position after the current input is turned off.
This unique locking feature helps minimize power consumption and heat generation of the motors.
In case of a sudden blackout, a failure in a transmission cable, or a battery problem, the hand still can hold the objects without electricity, leading to absolute holding reliability of the hand. An example of a practical application for this is disaster-prevention robots, which are expected to work outside and use a battery as their main power source. Having motors with low power consumption will extend the operating period of the total system. Additionally, the unique locking feature, which allows the robot to maintain hold on an object even if its power supply is disrupted, contributes to the "toughness" of the robot in emergency situations.
The era of humans coexisting with robots is fast approaching.
Namiki will continue to take on the challenge of applying dexterity, strong grip force, and de-energized locking to extensive fields, such as precision robotics or manufacturing for specific environments (dangerous conditions, outer space, etc.).
appearance photo

Appearance

mechanism figure

Mechanism

*1  No electricity locking systemdyNALOX
A unique and compact lock mechanism which enables the shaft to fix its position without any current input.
The shaft can be turned to CW and CCW directions only when it is moved from the inside.

 
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