Spring-Loaded Chuck for Laser Processing Cylindrical Workpieces

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Solution Overview

Problem

Existing devices for laser processing of cylindrical workpieces, such as jewelry rings, require extensive reconfiguration and can apply excessive forces, leading to deformation due to mechanical clamping mechanisms, which are time-consuming and inefficient.

Innovation Solution

A device utilizing spring-loaded clamping elements that automatically fix the workpiece without external force, allowing for flexible processing positions and reducing the risk of deformation, with a rotary drive and interchangeable chucks for different workpiece shapes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mechanical clamping devices are used to fix the workpiece, then the workpiece can be held securely for processing, but excessive forces may be applied causing deformation of sensitive workpieces

Engineering Contradiction:

Improveworkpiece fixation stabilityVSAvoidworkpiece deformation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The clamping device utilizes the workpiece itself to activate the clamping mechanism. The workpiece, when inserted, automatically triggers the spring-loaded clamping elements to engage, eliminating the need for external actuation and ensuring the workpiece is held securely without excessive force application by the operator

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The spring-loaded clamping elements provide a controlled, predetermined clamping force that is sufficient to hold the workpiece securely during laser processing but below the threshold that would cause deformation of sensitive workpieces like jewelry rings

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If the laser device is reconfigured for different applications, then processing capability is improved, but a lot of time is required for replacement or reconfiguration

Engineering Contradiction:

Improveprocessing capabilityVSAvoidreconfiguration time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The laser device is equipped with a universal clamping system that can accommodate different types of cylindrical workpieces through the use of interchangeable chucks and adapters. This multi-functional approach allows the same basic device to handle various applications (internal engraving, external engraving, different workpiece sizes) without requiring complete reconfiguration, significantly reducing setup time while maintaining processing versatility

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Enables efficient and precise laser processing of cylindrical workpieces with minimal force application, preventing deformation and allowing for quick adaptation to various workpiece shapes without additional adjustment effort.

Implementation Method 1

first clamping elements (40) which automatically fix the workpiece (22) by exerting a spring force

Methodology Applied

Scientific EffectSpring force: Spring

Data Source

PatentEP1980356B1Device for fitting a fundamentally cylindrical workpiece, in particular a decorative ring, for processing with a laser beam

Publication Date: 2016.10.05 ROFIN BAASEL LASERTECH

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AI summary

A device for receiving a substantially cylindrical workpiece (22), in particular a jewelry ring, for processing with a laser beam (L), includes at least a first chuck (20) rotatably mounted about a rotational axis (18) for the centric receiving of the workpiece (22) with first clamping elements (40) which automatically fix the workpiece (22) by exerting a spring force.