LED-Guided Clamping Positioning for Faster Workpiece Setup

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing clamping devices for woodworking machines lack intuitive and efficient positioning methods, often requiring manual alignment and multiple steps to verify correct placement of clamping elements, leading to potential errors and increased setup time.

Innovation Solution

A clamping device with a positioning system using individually activatable light-emitting diodes (LEDs) that display target or actual parameters such as target position, size, alignment, clamping status, and machine status through different colors and flashing patterns, allowing for intuitive and precise positioning of clamping elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual positioning methods are used for clamping devices, then the device complexity is reduced, but the positioning precision and setup time are worsened

Engineering Contradiction:
Improvepositioning precisionVSAvoidpositioning system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces manual mechanical positioning with an optical signaling system using LEDs. The positioning device uses light-emitting diodes to visually indicate target positions and clamping status, eliminating the need for manual measurement and alignment tools while improving positioning precision.

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

Solution Approach 2:

The patent introduces LED signaling as an intermediary between the positioning system and the operator. The LEDs serve as a visual mediator that communicates position and status information, reducing the complexity of direct mechanical interaction while improving positioning accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If multiple display elements are used to show positioning information, then the information completeness is improved, but the ease of operation is worsened

Engineering Contradiction:
Improvepositioning information completenessVSAvoidsetup operation simplicity
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent merges multiple positioning and status display functions into a single integrated positioning device. The device combines target position indication, clamping status monitoring, and alignment guidance into one unified LED-based system, improving information completeness while maintaining operational simplicity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The positioning device performs multiple functions simultaneously: indicating target positions, showing clamping status, and providing alignment guidance all through the same LED signaling system. This multi-functionality reduces the need for separate display elements while comprehensively conveying all necessary positioning information.

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

3Loss of information

If visual signaling with multiple colors is used, then the information differentiation is improved, but the device complexity increases

Engineering Contradiction:
Improveinformation differentiationVSAvoidsignaling system complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent uses different LED colors to differentiate various positioning and status information. The system employs color-coded signaling where specific colors represent different clamping states, target positions, or alignment conditions, enabling clear information differentiation through a relatively simple optical mechanism.

Inventive Principle:
Principle #32Color changes

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 enables quick, precise, and error-reduced setup of clamping devices, allowing operators to easily verify the correct positioning of all elements at a glance, thereby simplifying the clamping process and reducing setup time.

Implementation Method 1

the positioning device having a plurality of individually activatable light-emitting diodes, wherein at least one desired or actual parameter for the at least one clamping means can be displayed by at least one activated light-emitting diode

Methodology Applied
Scientific EffectLight-emitting diode: Light Emitting Diode

Data Source

PatentEP3670073B1Clamping device
Publication Date: 2022.06.08 FELDER KG
  • EP3670073B1 patent drawingFigure 1
  • EP3670073B1 patent drawingFigure 2a~3b
  • EP3670073B1 patent drawingFigure 4

AI summary

Clamping device (1) for clamping a workpiece (W) to be machined, in particular a plate-shaped workpiece, comprising: - a machine frame (2), - at least one clamping device (3) movable relative to the machine frame (2) and connectable to the machine frame (2), and - at least one positioning device (4) for positioning the at least one clamping device (3) relative to the machine frame (2), wherein the positioning device (4) has a plurality of individually activatable light-emitting diodes (5), wherein at least one activated light-emitting diode (5) can indicate at least one target or actual parameter (P) for the at least one clamping device (3), wherein the plurality of light-emitting diodes (5) is designed to emit light (L) of at least two different wavelengths in the visible wavelength range.