Robot Actuator Module

Modular Robot Actuator Module with Worm Gear Reduction and Connector Coupling

This technology is a modular actuator featuring a worm and worm gear reduction system. By positioning the motor and motor driver both inside and on the exterior of the case and separating them from the rotating assembly, it ensures ease of assembly and flexibility in capacity scaling. The module allows for the construction of multi-jointed robot arms by interconnecting multiple units via integrated coupling interfaces and connectors.

Previously, designing individual robots required custom manufacturing of components and frames, leading to high production costs. Furthermore, a lack of modularity in robot drive units made maintenance and performance upgrades difficult.

This technology adopts a structure where the motor is fixed to the exterior side of the case, driving the worm gear of the rotating assembly via a worm shaft. It enables the direct mechanical and electrical connection of multiple drive modules using coupling interfaces and pin connectors. Applicable to collaborative robots, logistics manipulators, and educational robot platforms, it allows for the configuration of various robot arm specifications simply by combining modules, significantly reducing development time and costs.

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Key Features:

• A modular case featuring a rotating assembly on one side and a first coupling interface on the other for connection to external components.
• A motor mounted on the exterior side of the case, configured to transmit rotational drive force to the rotating assembly.
• A second coupling interface located at the end of the rotating assembly for connection to external components, and a worm gear that receives drive force via a worm gear shaft.
• First and second connectors provided at the first and second coupling interfaces, respectively, and electrically connected to the motor driver.

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This invention was developed with the support of the Ministry of Science and ICT for the development of a modular manipulator based on spherical parallel complex joints for item delivery and collection.