Ultra-Precision Compact Parallel Robot Manipulator

Ultra-Precision Compact Parallel Robot Manipulator

This technology features a parallel robot manipulator structure that performs multi-degree-of-freedom position and orientation control. It consists of a frame with top and bottom plates and guide pins, housing piezoelectric motor-based actuators and slide plates that transmit translational motion to an end-effector via linkage units.

Conventional manipulators are difficult to miniaturize due to complex structures where actuators move along axes, and their structural complexity and large volume limit their commercial application in areas such as ultra-precision tasks or medical use.

This technology adopts a parallel kinematic structure where the rotational motion of a screw driven by an actuator (piezoelectric motor) fixed to the bottom plate is converted into translational motion via ball bearings to move the slide plate vertically. The linkage unit connected to the slide plate then drives the end-effector, resulting in a more compact device with improved precision. Applicable to industrial robots and automation systems, it enhances the miniaturization, precision, portability, and control capabilities of parallel robot manipulators.

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Key Features:

• Frame unit forming the exterior with top plate, bottom plate, and guide pins
• Multiple independently operated drive units coupled to the frame
• End-effector provided inside the frame unit, with a device mounted on its base
• Linkage units connecting the end-effector to the multiple drive units to control position and orientation