Component Influence-Driven Fastener Reduction for Robotic Disassemblability-Aware Design Simplification

• URL: http://arxiv.org/abs/2605.21026v1
• Date: Wed, 20 May 2026 11:00:25 GMT
• Title: Component Influence-Driven Fastener Reduction for Robotic Disassemblability-Aware Design Simplification
• Abstract summary: This study proposes an analytical framework that provides actionable guidance focused on fastener reduction.<n>The framework translates robotic disassembly sequence planning outcomes into component influence scores.<n>Experiments on seven household appliances demonstrate that the framework successfully targets redundant fasteners.
• Score: 6.078622137171499
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: To accelerate automated remanufacturing, robotic disassembly must be considered during the product design phase. However, designers currently lack quantitative feedback to identify which structural elements hinder robotic operations. To address this, this study proposes an analytical framework that provides actionable redesign guidance focused on fastener reduction, as fasteners are numerous and ubiquitous components found in almost all manufactured products. Using a Computer-Aided Design (CAD) model and its automatically generated Contact-Connection-Constraint (CCC) graph, the framework translates robotic disassembly sequence planning outcomes into component influence scores. These scores reflect how often a component causes structural constraint violations or evaluation objective deteriorations in the robotic disassembly sequence. To visually highlight structural hindrances, the framework projects these scores onto the CAD geometry as 3D heatmaps. The system then analytically simulates the removal of highly influential fasteners. It reports the expected reductions in structural constraints, tool changes, and robot travel distances, while preventing structurally unsafe modifications by evaluating geometric stability metrics. Experiments on seven household appliances demonstrate that the framework successfully targets redundant fasteners. Removing the recommended fasteners simplified the structural dependencies by eliminating between 8 and 132 structural constraints on the graph depending on each product's structural configuration. Furthermore, it improved robotic operational efficiency by eliminating unnecessary tool change operations and shortening travel distances by 165 to 1675 millimeters wherever structurally permissible.

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