Magnetic Coupling Tool With Sensing and Integrated Degaussing

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Solution Overview

Problem

Existing magnetic coupling devices face challenges in accurately determining the quality of the magnetic coupling and relative position with ferromagnetic workpieces, and require separate processing steps for degaussing, which complicates integration with robotic systems and increases costs.

Innovation Solution

A magnetic coupling tool with integrated magnetic field sensors and a logic control circuit to determine the coupling quality and position, and a degaussing capability using electrical windings to remove residual magnetism, allowing for real-time feedback and efficient operation within robotic systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If magnetic coupling devices use traditional sensor arrangements to determine coupling quality and position, then measurement capability is provided, but device complexity increases and integration with robotic systems becomes complicated

Engineering Contradiction:
Improvecoupling quality determinationVSAvoidsystem integration complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines the sensor arrangement and degaussing capability into a single integrated magnetic coupling device. The sensor arrangement includes sensors positioned to detect magnetic field strength and coupling quality, while the degaussing capability uses electrical windings to eliminate residual magnetism. This integration eliminates the need for separate processing steps and reduces system complexity when integrating with robotic systems.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The magnetic coupling device performs multiple functions through a single unified structure. It can determine coupling quality using magnetic field sensors, position the workpiece using the same sensor data, and perform degaussing using integrated electrical windings. This multi-functionality reduces the number of separate components needed and simplifies integration with robotic systems.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Object-generated harmful factors

If separate processing steps are used for degaussing, then residual magnetism is removed, but productivity decreases and additional processing time is required

Engineering Contradiction:
Improveresidual magnetism removalVSAvoidprocessing efficiency
Core Design Contradiction:
Object-generated harmful factorsVSProductivity

Solution Approach 1:

The degaussing capability is integrated into the magnetic coupling device itself, allowing residual magnetism to be removed immediately after magnetic coupling is completed. The electrical windings are positioned to generate a magnetic field that opposes and eliminates residual magnetism in the workpiece, eliminating the need for separate degaussing equipment and processing steps.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The degaussing function is merged with the magnetic coupling device, combining the magnetic field generation capability with the degaussing capability in a single integrated unit. This allows the same device to both couple the workpiece magnetically and then remove residual magnetism, eliminating the need for separate processing steps and improving productivity.

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If integrated sensor arrangement and degaussing capability are implemented, then real-time feedback and operational efficiency are improved, but device complexity increases

Engineering Contradiction:
Improveoperational efficiencyVSAvoidinternal structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The magnetic coupling device incorporates multiple functions within a single unified structure. The sensor arrangement detects magnetic field strength and coupling quality, while the electrical windings provide both magnetic coupling and degaussing capabilities. This multi-functionality improves operational efficiency by eliminating separate processing steps while managing complexity through integrated design.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The sensor arrangement provides real-time feedback on coupling quality and workpiece position by detecting magnetic field strength. This feedback is used to adjust the magnetic coupling force and ensure proper positioning, improving operational efficiency and safety while the integrated design manages the complexity of the feedback control system.

Inventive Principle:
Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides precise feedback on coupling quality and position, ensures safe decoupling, and integrates seamlessly with robotic systems, enhancing operational efficiency and reducing additional processing steps.

Implementation Method 1

a first magnetic field sensor of the plurality of magnetic field sensors positioned to monitor a first magnetic flux associated with the first workpiece engagement surface and a second magnetic field sensor of the plurality of magnetic field sensors positioned to monitor a second magnetic flux associated with the second workpiece engagement surface

Methodology Applied
Scientific EffectMagnetic field detection: Magnetic Field

Implementation Method 2

a degaussing capability using electrical windings to remove residual magnetism

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP3615267B1Magnetic coupling device with at least one of a sensor arrangement and a degauss capability
Publication Date: 2025.12.17 MAGSWITCH AUTOMATION CO
  • EP3615267B1 patent drawingFigure 1
  • EP3615267B1 patent drawingFigure 2
  • EP3615267B1 patent drawingFigure 3

AI summary

Magnetic coupling devices are disclosed having magnetic field sensors. The magnetic coupling device may include degaussing coils wrapped about pole extension shoes of the magnetic coupling device.