Magnetic Fixing Welding Station for Vehicle Body Components

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Solution Overview

Problem

Existing welding stations for vehicle metal sheet body components face challenges due to the large dimensions and complexity of mechanical gripping devices, leading to increased production and maintenance costs, as well as limited flexibility in adapting to varying component geometries.

Innovation Solution

A welding station utilizing magnetic fixing devices with adjustable and angularly positioned components, allowing for precise positioning and easy access for welding guns, which can be adapted to the shape of the component using electromagnets, permanent magnets, and adjustable brackets.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If mechanical gripping devices such as pneumatically operated clamps are used to hold components during welding, then the component can be stably maintained in position, but the overall dimensions become large and the structure becomes complex

Engineering Contradiction:
Improvecomponent positioning stabilityVSAvoidfixing device complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent replaces mechanical gripping devices with magnetic fixing means. The magnetic fixing means comprises magnetic elements that directly engage with the metal sheet body component through magnetic attraction, eliminating the need for complex mechanical clamps and pneumatic systems. This substitution maintains stable positioning while significantly reducing device complexity.

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

Solution Approach 2:

The patent extracts the essential function of mechanical gripping devices (holding the component in position) and implements it through a simplified magnetic system. By taking out only the necessary positioning function and implementing it through magnetic attraction rather than mechanical clamping, the device complexity is reduced while maintaining positioning stability.

Inventive Principle:
Principle #2Taking out (Extraction)

2Stability of the object's composition

If mechanical gripping devices are used to hold components during welding, then the component can be securely positioned, but the welding gun access becomes difficult and production time increases

Engineering Contradiction:
Improvecomponent positioning stabilityVSAvoidwelding operation speed
Core Design Contradiction:
Stability of the object's compositionVSProductivity

Solution Approach 1:

By replacing bulky mechanical clamps with compact magnetic fixing means, the patent creates more space for welding guns to access the component. The magnetic fixings can be positioned closer to the welding areas without interfering with gun movement, thereby improving productivity while maintaining positioning stability.

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

3Stability of the object's composition

If mechanical gripping devices are used for fixing components, then the component can be held in position, but the adaptation to varying component geometries is limited

Engineering Contradiction:
Improvecomponent positioning stabilityVSAvoidconfiguration flexibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The patent implements adjustable magnetic fixings that can be repositioned and reconfigured to adapt to different component geometries. The magnetic fixing means includes adjustable arms and positioning mechanisms that allow operators to modify the configuration for various component shapes, maintaining positioning stability across different geometries.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The magnetic fixing system serves multiple functions: it can hold components in various positions, adapt to different geometries, and facilitate welding access. The universal magnetic fixing design can accommodate different component types and sizes, enhancing versatility while maintaining stable positioning.

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

4Stability of the object's composition

If mechanical gripping devices are used for component fixation, then the component can be securely held, but the production and maintenance costs increase

Engineering Contradiction:
Improvecomponent positioning stabilityVSAvoidproduction cost
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The patent replaces expensive mechanical gripping devices with simpler magnetic fixing means. The magnetic system eliminates the need for pneumatic systems, complex linkages, and multiple mechanical components, thereby reducing both production and maintenance costs while maintaining positioning stability.

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

5Stability of the object's composition

If mechanical gripping devices are used for component fixation, then the component can be held in position, but the production and maintenance costs increase

Engineering Contradiction:
Improvecomponent positioning stabilityVSAvoidmaintenance cost
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

By replacing mechanical gripping devices with magnetic fixing means, the patent eliminates complex mechanical components that require maintenance. The magnetic system has fewer moving parts, no pneumatic seals to replace, and simpler structure, thereby reducing maintenance costs and improving ease of repair while maintaining positioning stability.

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

This solution reduces production times and costs by enabling efficient and flexible positioning of components, allowing for unobstructed access for welding guns and accommodating varying geometries, thus enhancing the overall efficiency and adaptability of the welding process.

Implementation Method 1

the supporting members (4) have fixing means (5) designed to hold the component (2) in position with respect to the supporting members (4) itself, in a given position

Methodology Applied
Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentEP2394776B1Welding station for vehicle metal sheet body components using magnetic fixing means ; Industrial Plant with such welding station
Publication Date: 2014.11.05 CENTRO RICERCHE FIAT SCPA
  • EP2394776B1 patent drawingFigure 1
  • EP2394776B1 patent drawingFigure 2

AI summary

A welding station (1) for vehicles metal sheet body components (2) is provided with a base (3) and a plurality of supporting members (4), which are mounted on the base (3) for supporting, in use, the components (2) to be welded and are each provided with fixing devices (5) of a magnetic type designed to hold said components (2) in position with respect to the base (3).