Switchable Magnetic Coupling for Multi-Interface Workpiece Engagement
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Solution Overview
Problem
Existing magnetic coupling devices lack versatility and efficiency in engaging multiple workpiece contact interfaces, particularly in switching between different magnetic states to effectively couple with ferromagnetic workpieces.
Innovation Solution
A magnetic coupling device with a switchable magnetic flux source and multiple pole portions, including movable permanent magnets, allows for adjustable magnetic engagement surfaces and integrated sensors to monitor and control the magnetic coupling process, enabling variable magnetic field strengths and states for enhanced interaction with ferromagnetic workpieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a magnetic coupling device uses a fixed magnetic flux source, then the device structure is simple, but the device lacks versatility in engaging multiple workpiece contact interfaces
Solution Approach 1:
The patent applies the dynamics principle by making the magnetic flux source switchable between different states (ON and OFF) and configurations. The magnetic coupling device can dynamically adjust its magnetic field generation, transitioning between engaged and disengaged states, and between different engagement patterns (e.g., engaging only north poles or only south poles). This dynamic capability enables versatility in engaging multiple workpiece contact interfaces without requiring multiple fixed magnetic sources, thus avoiding excessive structural complexity.
2Productivity
If a magnetic coupling device engages multiple workpiece contact interfaces simultaneously, then the productivity is improved, but the control complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the magnetic coupling device into multiple independent pole portions (north pole portions and south pole portions), each capable of independent workpiece engagement. The switchable magnetic flux source can selectively activate different pole portions, allowing the device to engage multiple workpiece contact interfaces simultaneously or sequentially. This segmentation enables high productivity through parallel engagement while keeping control complexity manageable by allowing selective activation of individual poles rather than requiring complex coordination of all poles simultaneously.
3Use of energy by moving object
If the magnetic coupling device uses permanent magnets, then the energy consumption is reduced, but the ability to switch between magnetic states is limited
Solution Approach 1:
The patent applies parameter changes by using permanent magnets with switchable magnetization states. The permanent magnets can be switched between different magnetic states (magnetized and demagnetized, or reversed polarity) through external means such as electromagnetic fields or mechanical actuation. This allows the device to change its magnetic parameters (field strength, polarity, engagement state) while still utilizing the energy-efficient permanent magnet mechanism, thus achieving both low energy consumption and high adaptability in switching between magnetic states.
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 device provides efficient and adaptable magnetic coupling by allowing for variable magnetic field strengths and states, enhancing the versatility and effectiveness in engaging multiple workpiece contact interfaces, thereby improving the magnetic coupling process.
Implementation Method 1
a switchable magnetic flux source supported by the housing and magnetically coupled to the ferromagnetic workpiece
Implementation Method 2
The plurality of permanent magnets including a first permanent magnet and a second permanent magnet movable relative to the first permanent magnet
Data Source
AI summary
Magnetic coupling devices are disclosed. The magnetic coupling devices may include sensors, retractable pins, stationary pins, probes, and/or additional tools. The magnetic coupling devices may include multiple sets of pole portions, a first set may be received in an opening in a first magnet of the magnetic coupling device and a second set may be outside of an envelope of the first magnet.