Magnetic Welding Jig Micro-Blasting for Spatter Removal

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Solution Overview

Problem

Existing welding jigs used in laser welding processes suffer from reduced quality due to foreign matter like spatter adhering to them, which is not effectively addressed by current cleaning technologies.

Innovation Solution

A micro-blaster system integrated with a welding jig cleaning apparatus, featuring a housing, sandbox, air supply unit, blasting gun with a jig fixing portion, and controller, allows for horizontal movement and upward-downward rotation of the jig fixing portion to remove pollutants like spatter efficiently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If ultrasonic welding is used to connect electrode tab and electrode lead, then welding is performed, but foreign matter like spatter is generated and attached to welding jig, lowering welding quality

Engineering Contradiction:
Improvewelding capabilityVSAvoidwelding quality
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The micro-blaster cleaning apparatus performs preliminary cleaning of the welding jig before welding operations to prevent spatter accumulation. The system proactively removes foreign matter before it degrades welding quality, rather than reacting after contamination occurs.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The micro-blaster acts as an intermediary cleaning device between the welding process and the welding jig. It introduces abrasive particles through a nozzle to mediate the removal of spatter, protecting the welding quality without interfering with the welding operation itself.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If conventional cleaning methods are used on welding jig, then cleaning is performed, but cleaning efficiency is insufficient and welding quality is not improved

Engineering Contradiction:
Improvecleaning operationVSAvoidcleaning efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system replaces conventional mechanical cleaning methods with a micro-blaster apparatus that uses pressurized abrasive particles. This substitution enables more effective removal of spatter through fluid dynamics and particle impact rather than traditional mechanical contact.

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

Solution Approach 2:

The micro-blaster changes the cleaning parameters by introducing pressurized gas flow and abrasive particles with specific velocity and distribution characteristics. These parameter changes enable thorough cleaning of difficult-to-reach areas on the welding jig that conventional methods cannot access.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If welding jig is not cleaned, then welding operations continue, but spatter accumulates on welding jig, reducing welding quality

Engineering Contradiction:
Improvewelding operation continuityVSAvoidwelding quality
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The micro-blaster cleaning system enables continuous cleaning action during or between welding operations. By maintaining constant readiness to clean and performing frequent brief cleaning cycles, the system ensures uninterrupted welding productivity while continuously removing spatter to maintain quality.

Inventive Principle:
Principle #20Continuity of useful action

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 system effectively improves welding quality by removing spatter from welding jigs during laser welding processes, enhancing cleaning efficiency and preventing secondary pollution through a hermetically sealed housing.

Implementation Method 1

the jig fixing portion (600) includes a magnetic unit (640) configured to fix a welding jig (700)

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Implementation Method 2

a blasting gun (500) positioned in the housing (100)... capable of removing pollutants, such as spatter, from a welding jig using a micro-blaster

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentEP4108371B1Micro-cleaning device for welding jig
Publication Date: 2024.09.18 LG ENERGY SOLUTION LTD
  • EP4108371B1 patent drawingFigure 1~2
  • EP4108371B1 patent drawingFigure 3~4

AI summary

The present invention relates to a welding jig micro-cleaning apparatus, and more particularly to a welding jig micro-cleaning apparatus including a housing (100), a sandbox (200) connected to the housing, an air supply unit (300) connected to the sandbox with a hose, a blasting gun (500) positioned in the housing, a jig fixing portion (600) positioned at a lower end of the blasting gun (500), and a controller (400), wherein the jig fixing portion (600) includes a magnetic unit (640) configured to fix a welding jig (700).