Designing and Validating a Self-Aligning Tool Changer for Modular Reconfigurable Manipulation Robots

Fuente: arXiv
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Autori principali: Maskur, Mahfudz, Kiyokawa, Takuya, Harada, Kensuke
Natura: Preprint
Pubblicazione: 2026
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author Maskur, Mahfudz
Kiyokawa, Takuya
Harada, Kensuke
author_facet Maskur, Mahfudz
Kiyokawa, Takuya
Harada, Kensuke
contents Modular reconfigurable robots require reliable mechanisms for automated module exchange, but conventional rigid active couplings often fail due to inevitable positioning and orientational errors. To address this, we propose a misalignment-tolerant tool-changing system. The hardware features a motor-driven coupling utilizing passive self-alignment geometries, specifically chamfered receptacles and triangular lead-in guides, to robustly compensate for angular and lateral misalignments without complex force sensors. To make this autonomous exchange practically feasible, the mechanism is complemented by a compact rotating tool exchange station for efficient module storage. Real-world autonomous tool-picking experiments validate that the self-aligning features successfully absorb execution errors, enabling highly reliable robotic tool reconfiguration.
format Preprint
id arxiv_https___arxiv_org_abs_2603_04760
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Designing and Validating a Self-Aligning Tool Changer for Modular Reconfigurable Manipulation Robots
Maskur, Mahfudz
Kiyokawa, Takuya
Harada, Kensuke
Robotics
Modular reconfigurable robots require reliable mechanisms for automated module exchange, but conventional rigid active couplings often fail due to inevitable positioning and orientational errors. To address this, we propose a misalignment-tolerant tool-changing system. The hardware features a motor-driven coupling utilizing passive self-alignment geometries, specifically chamfered receptacles and triangular lead-in guides, to robustly compensate for angular and lateral misalignments without complex force sensors. To make this autonomous exchange practically feasible, the mechanism is complemented by a compact rotating tool exchange station for efficient module storage. Real-world autonomous tool-picking experiments validate that the self-aligning features successfully absorb execution errors, enabling highly reliable robotic tool reconfiguration.
title Designing and Validating a Self-Aligning Tool Changer for Modular Reconfigurable Manipulation Robots
topic Robotics
url https://arxiv.org/abs/2603.04760