Stand-Up Machine Tool Chip Deflection With Internal Magnets

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Solution Overview

Problem

Free-flying metal chips and particles from machining processes can cause production disorders, damage workpieces, and lead to premature wear in machine tools, especially in high-speed and precise processing environments like core drilling machines.

Innovation Solution

A chip guide system is integrated into the stand machine tool, utilizing at least one magnet positioned to attract and deflect chips away from critical components, thereby controlling their spread within the machine housing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If machining operations are performed at high speeds for precise processing, then productivity and manufacturing precision are improved, but free-flying metal chips are generated that can damage machine components and electronics

Engineering Contradiction:
Improvemachining speedVSAvoidchip damage to machine components
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent utilizes the magnetic properties of metal chips (which are inherently magnetic) to convert the harmful effect of free-flying chips into a beneficial control mechanism. By positioning magnets strategically within the machine housing, the chips are attracted and guided along predetermined paths toward designated collection areas, transforming the problematic free-flying behavior into a controlled deposition process that protects sensitive components while maintaining high-speed machining operations

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

2Reliability

If magnets are positioned to deflect chips away from critical components, then reliability is improved by preventing chip damage, but device complexity increases due to the chip control system

Engineering Contradiction:
Improvemachine component protectionVSAvoidchip control system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The chip control system operates autonomously without requiring external control mechanisms. The magnets are permanently positioned within the housing to create magnetic fields that automatically attract and guide chips along predetermined paths. The system self-regulates chip movement based on the inherent magnetic properties of the chips, eliminating the need for sensors, actuators, or complex control electronics, thereby maintaining simplicity while achieving reliable chip management

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces complex mechanical chip evacuation systems (such as vacuum mechanisms, conveyors, or robotic arms) with a simpler magnetic field-based system. The magnets create invisible magnetic fields that naturally guide chips without mechanical contact, reducing moving parts and mechanical complexity while providing continuous, reliable chip control throughout the machining operation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 chip guide system effectively prevents chips from reaching sensitive areas, ensuring the safety and stability of the processing work, reducing the risk of damage to tools and electronics, and maintaining the precision and quality of the manufacturing process.

Implementation Method 1

the magnet is arranged in the first tool stand housing interior such that chips induced by a machining operation and entering the tool stand housing interior are deflected by the magnetic field induced by the magnet

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Data Source

PatentEP4534225A1Stand-up machine tool
Publication Date: 2025.04.09 C & E FEIN GMBH & CO KG
  • EP4534225A1 patent drawingFigure 1a
  • EP4534225A1 patent drawingFigure 1b
  • EP4534225A1 patent drawingFigure 2

AI summary

A stationary machine tool (100) for machining, in particular a core drilling machine, comprising a tool stand (12) with a first tool stand housing interior (14), a chip deflection system including a magnet (16), wherein the magnet (16) is arranged in the first tool stand housing interior (14) such that chips generated by a machining operation and entering the first tool stand housing interior (14) are deflected by the chip deflection system.