Modular Welding Carriage for Fast Multi-Operation Tool Switching

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Solution Overview

Problem

Conventional welding systems require machine replacement for different welding operations along a single welding line, which is cumbersome.

Innovation Solution

A welding carriage with a removable securing surface for various operation machines, including a motor for movement and control circuitry, allowing for easy switching between different welding, processing, and inspection operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If different machines are used for different welding operations, then each operation can be performed with dedicated equipment, but the machine replacement process becomes cumbersome and complex

Engineering Contradiction:
Improveoperation performanceVSAvoidmachine replacement process
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing a single self-propelled carriage that can perform multiple welding operations (welding, processing, inspection) through removable operation machines. The carriage main body serves as a universal platform that accommodates different operation machines via securing surfaces, eliminating the need for multiple dedicated machines and simplifying the system while maintaining operational reliability.

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

2Reliability

If machine replacement is performed for different welding operations, then each operation can be optimized with specialized equipment, but the process becomes time-consuming and reduces productivity

Engineering Contradiction:
Improveoperation optimizationVSAvoidoperation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies dynamics by making the operation machine selection changeable and adaptable. The carriage is designed with removable operation machines that can be dynamically switched based on the required welding operation. This dynamic configuration allows the system to optimize for each specific operation while avoiding the time loss associated with replacing entire machines, thereby maintaining both operation optimization and productivity.

Inventive Principle:
Principle #15Dynamics

3Reliability

If multiple dedicated machines are used for different operations, then each machine can be optimized for its specific function, but manufacturing and maintenance costs increase

Engineering Contradiction:
Improvefunction-specific performanceVSAvoidmanufacturing and maintenance cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies segmentation by dividing the welding system into a common carriage platform and separate removable operation machines. The carriage main body contains shared components (motor, wheels, control circuitry) that serve all operations, while the operation machines (welding torch, processing tool, inspection device) are separate modules. This segmentation allows each operation machine to be optimized for its specific function while sharing the common platform, reducing overall manufacturing and maintenance costs compared to having completely separate dedicated machines.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4582214A1Truck for welding work, welding work system, and welding work method
Publication Date: 2025.07.09 KAWASAKI JUKOGYO KK
  • EP4582214A1 patent drawingFigure 1
  • EP4582214A1 patent drawingFigure 2
  • EP4582214A1 patent drawingFigure 3

AI summary

A welding carriage includes: a carriage main body including a securing surface to which one operation machine is secured, the one operation machine being selected from different types of operation machines that perform different welding operations; a wheel that is supported by the carriage main body and brought into contact with a surface of a workpiece that is a welding target; a motor that operates to move the carriage main body on the surface of the workpiece; and carriage control circuitry that controls the motor. The carriage main body removably receives the operation machine that is secured to the securing surface.