This system enables the robot to precisely replicate human movements with millisecond accuracy, allowing "one person to control hundreds or thousands of robot avatars" and completing complex operations simultaneously. It has pushed the dexterity and coordination of robots to a new level.
1. When AI large models endow robots with the abilities of "thinking" and "imitation", a fundamental question arises: With such highly precise and responsive action instructions, what kind of "joints" are needed to support their implementation?
The more precise the movements, the more crucial the joints: The "invisible core value" of harmonic reducers
Behind the robot's millisecond replication of human movements, every micro-motion of each joint and every force transmission are inseparable from the core transmission component - harmonic reducers. It does not participate in the "thinking" of the robot, but directly determines whether the AI instructions can be converted into stable, smooth, and highly precise physical actions.
If the "external avatar system" is compared to the robot's "brain", harmonic reducers are the precise "joints" that support the efficient operation of this "brain".
The core technology of harmonic reducers is to use the controllable elastic deformation of flexible gears to transmit motion. The transmission process is simple and efficient:
1. The cam causes the thin-walled bearings and flexible gears to deform into an elliptical shape;
2. The flexible gear and the internal gear mesh in the elliptical long axis section;
3. When the fixed internal gear is kept and the cam rotates 360° clockwise, the flexible gear will move in the opposite direction along the part where the number of teeth of the internal gear and the flexible gear differ.
This unique structure enables the reducer to achieve high precision, high reduction ratio and zero backlash smooth transmission within a very small volume.
Performance indicators: Quantitative standards, making reliability traceable.
1. Flexibility of gear strength
During operation, the flexible gear undergoes repeated elastic deformation. The transmission torque of the reducer is based on the fatigue strength of the tooth root of the flexible gear. The rated torque, the allowable peak torque during start-stop, are all controlled within the tooth root fatigue limit; if an impact torque exceeding the peak torque during start-stop is applied, fatigue failure may occur; the impact torque can be applied a limited number of times, and the maximum value must not exceed the instantaneous allowable maximum torque.
2. Buckling torque
When the wave generator is fixed, if excessive torque is applied to the flexible gear (output end), it is prone to plastic deformation, and buckling or even damage occurs in the middle. At this time, the torque value is the buckling torque.
3. Ratchet torque
During equipment operation, if excessive impact torque is applied, a ratchet effect may occur where the flexible gear does not break but detaches from the rigid gear at the moment of meshing. The corresponding torque is the ratchet torque.
4. Reference for rated operating conditions
When the input speed of the reducer is 2,000 r/min, the torque that can be loaded for a long time is used as a reliable technical basis for continuous operation.
From the intelligent instructions of large-scale models to the power transmission of gearboxes, every step in the robot industry is inseparable from the silent support and powerful empowerment provided by core components!
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Hangzhou Aike Automation Co., Ltd.