Gripper with fastening function

Gripper with integrated fastening function using magnetic gears for simultaneous gripping and screw tightening

This technology utilizes a magnetic gear to split rotational force from a single power source, enabling a gripper to perform both part gripping and fastening without the need for a separate electric screwdriver. Its non-contact torque transmission prevents excessive gripping force.

Existing solutions often require expensive tool changers to switch between grippers and electric screwdrivers. Furthermore, using separate power sources leads to energy waste, reduced control efficiency, and the risk of damaging components.

This technology features an integrated design that transmits motor torque to a magnetic gear composed of primary and secondary rotating magnets, simultaneously driving the gripping mechanism and rotating the fastening tool holder. It ensures stable fastening through a lead screw-based anti-backdrive gripping mechanism. Suitable for electronics assembly and automated production lines, it significantly reduces cycle times and equipment costs by eliminating the need for tool changers.

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Key Features:

• Single drive unit providing rotational power to both the magnetic gear and the fastening module
• Magnetic gear system comprising a primary rotating magnet connected to the drive unit and a secondary rotating magnet driven by the primary one
• Fastening module connected to the drive unit that performs tightening tasks by rotating components such as screws
• Gripping module driven by the secondary rotating magnet to securely hold screws for fastening

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This invention was developed with support from the Ministry of Trade, Industry and Energy for the development of intelligent robot technology capable of recognizing and assembling objects in real-world environments based on given work plans.