Linked Welding Head and Base Motion for Stable Positioning

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Solution Overview

Problem

Existing welding devices fail to ensure simultaneous movement of the welding head and welding base, necessitating separate adjustments which can lead to instability and potential damage during the welding process.

Innovation Solution

A welding device design that incorporates a drive unit connected to first and second connecting rods, allowing simultaneous movement of the welding head and base through coordinated action, with additional features like shaping plates and supporting components to enhance stability and reduce pressure on the objects being welded.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If separate adjustment mechanisms are used for welding head and welding base, then individual positioning flexibility is improved, but simultaneous movement coordination deteriorates

Engineering Contradiction:
Improvepositioning flexibilityVSAvoidsimultaneous movement coordination
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent combines two separate adjustment mechanisms into a single integrated mechanism. The first connecting rod connects the welding head to the drive unit, while the second connecting rod connects the welding base to the same drive unit, enabling synchronized movement through one drive unit rather than two independent mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The drive unit acts as an intermediary that coordinates the movement of both the welding head and welding base. By using a single drive unit to control both connecting rods, the system ensures that both components move simultaneously and协调ly, resolving the coordination issue while maintaining positioning flexibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Speed

If welding head and base are moved independently, then adjustment speed is improved, but system stability deteriorates

Engineering Contradiction:
Improveadjustment speedVSAvoidsystem stability
Core Design Contradiction:
SpeedVSStability of the object's composition

Solution Approach 1:

The patent merges the adjustment operations into a single coordinated action through the integrated mechanism. The drive unit moves both the welding head and welding base simultaneously at the same speed, maintaining the relative positional relationship and ensuring system stability while achieving fast adjustment.

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If complex multi-component mechanisms are used for movement control, then movement precision is improved, but device complexity increases

Engineering Contradiction:
Improvemovement precisionVSAvoidmechanism complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent segments the movement control function into two simple connecting rods (first and second connecting rods) that are driven by a single drive unit. This segmentation approach achieves precise coordinated movement of both welding components without requiring a complex multi-component mechanism, as each connecting rod independently transmits motion from the common drive unit to its respective component.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4205898B1Welding device
Publication Date: 2025.08.20 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
  • EP4205898B1 patent drawingFigure 1~2
  • EP4205898B1 patent drawingFigure 3~4
  • EP4205898B1 patent drawingFigure 5~6

AI summary

The present application discloses a welding device. The welding device includes a drive unit, a first connecting rod, a second connecting rod, a welding head and a welding base. The drive unit is in driving connection with one end of the first connecting rod and one end of the second connecting rod; another end of the first connecting rod is in driving connection with the welding head, and is configured for causing, being driven by the drive unit, the welding head to move in a direction close to or away from the welding base; and another end of the second connecting rod is in driving connection with the welding base, and is configured for causing, being driven by the drive unit, the welding base to move in a direction close to or away from the welding head. The welding device according to the embodiments of the present application can ensure the synchronous movement of the welding head and the welding base.