Construction Robot Changeover Interface Testing for Wear and Dirt

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Solution Overview

Problem

Construction robots face safety risks due to heavy wear and dirt on changeover interfaces, leading to potential detachment of elements and increased probability of incorrect coupling, especially in harsh building construction environments.

Innovation Solution

A construction robot equipped with a manipulator, changeover interface, and a test device for quality testing, including optical, mechanical, and electrical components, to ensure safe and reliable mounting of elements by monitoring wear, dirt, and electrical connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If elements are frequently mounted and removed on the changeover interface, then the construction robot can perform diverse construction tasks, but the changeover interface suffers heavy wear and accumulates dirt, leading to safety risks

Engineering Contradiction:

Improveability to perform diverse construction tasksVSAvoidsafety of element mounting

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs preliminary quality testing of the changeover interface before element mounting to detect wear and dirt accumulation. By checking the interface condition in advance and preventing mounting when quality thresholds are not met, the system ensures safe operation while maintaining frequent tool changes for diverse construction tasks.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the changeover interface is continuously monitored for quality, then safety risks are reduced, but the complexity of the system increases

Engineering Contradiction:

Improvesafety of changeover interfaceVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system implements feedback through quality testing that monitors the changeover interface condition and provides information about wear and dirt levels. This feedback mechanism enables automated decision-making about whether element mounting should proceed, ensuring safety without requiring complex manual inspection procedures.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The construction robot performs self-inspection of its own changeover interface through integrated quality testing. The system autonomously detects wear and dirt accumulation and makes decisions about mounting suitability, eliminating the need for external manual inspection and reducing operational complexity.

Inventive Principle:

Principle #25Self-service

3Productivity

If dust and dirt are present on the changeover interface, then mounting speed is maintained, but incorrect coupling occurs leading to element detachment

Engineering Contradiction:

Improvemounting speedVSAvoidcoupling accuracy

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system performs preliminary quality testing to detect dust and dirt on the changeover interface before element mounting. By identifying contamination in advance and preventing mounting when quality thresholds are not met, the system ensures correct coupling and prevents element detachment while maintaining efficient operation through automated decision-making.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20260021594A1Construction Robot with Changeover Interface, Parts System and Method For Arranging A Parts System On The Changeover Interface

Publication Date: 2026.01.22 HILTI AG

AI summary

A construction robot (10), in particular for performance of building construction work, including a manipulator (18), a changeover interface (21) arranged on the manipulator (18) and configured for releasable arrangement of at least one element, in particular a tool (24) and/or a component to be processed, on the manipulator (18). A test device (104) which is configured for quality testing of the changeover interface (21), safety risks on use of the construction robot (10) can be minimized.