Sensor-Based Wire Drive Roll Setup for Welding Parameter Accuracy

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Solution Overview

Problem

The setup of welding power supplies requires numerous manual operator tasks, which can lead to errors if not performed correctly, affecting the welding operation.

Innovation Solution

A wire drive assembly with a sensor-equipped drive roll that automatically detects the wire diameter and type, communicating this information to a processor to set appropriate welding parameters such as wire speed and voltage, reducing the need for manual input.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual operator tasks are used to set up welding parameters, then the operator has control over each parameter, but the setup time increases and errors may occur

Engineering Contradiction:
Improveparameter setting accuracyVSAvoidsetup time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The drive assembly automatically detects wire diameter and type through sensor 190 and self-configures welding parameters without operator intervention. The system serves itself by reading drive roll configuration via sensor 190, determining wire properties, and automatically setting parameters in controller 40, eliminating manual setup tasks while maintaining accuracy.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The drive roll is pre-configured with specific groove geometries corresponding to different wire types and diameters. Before welding begins, sensor 190 reads the pre-configured drive roll position to determine wire properties in advance, allowing the system to pre-set all welding parameters before the actual welding operation starts.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If manual operator tasks are required for setup, then flexibility in parameter adjustment is maintained, but the complexity of operation increases

Engineering Contradiction:
Improvesetup simplicityVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

Manual mechanical adjustment of drive roll position and parameter setting is replaced by an automated sensing and control system. Sensor 190 optically or electronically detects drive roll configuration, and controller 40 automatically translates this into welding parameters, replacing manual mechanical operations with automated electromechanical systems.

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

Solution Approach 2:

The drive assembly incorporates multiple functions into a single integrated system: wire feeding, wire diameter detection, wire type identification, and automatic parameter setting. This multi-functional design simplifies operation by combining what would otherwise require separate manual steps into one automated process.

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

3Adaptability or versatility

If the drive roll is manually configured for different wire types, then adaptability to various wire specifications is achieved, but the setup time and potential for error increase

Engineering Contradiction:
Improvewire type compatibilityVSAvoidparameter setting accuracy
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

Sensor 190 provides feedback about the actual drive roll configuration to controller 40, which then automatically adjusts welding parameters based on the detected wire type and diameter. This closed-loop feedback system ensures that the parameters match the actual wire being used, eliminating errors from manual misconfiguration while maintaining adaptability to different wire specifications.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system automatically changes welding parameters (wire speed, voltage, amperage) based on detected wire properties. When sensor 190 identifies a different wire type or diameter, the controller automatically adjusts the relevant parameters to match the new wire specifications, maintaining optimal welding conditions across different wire types without manual intervention.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3703894B1Wire drive assembly with sensor to detect which configuration has been selected based on a distance of the drive roll ; corresponding welding power supply
Publication Date: 2023.04.26 ILLINOIS TOOL WORKS INC
  • EP3703894B1 patent drawingFigure 1
  • EP3703894B1 patent drawingFigure 2
  • EP3703894B1 patent drawingFigure 3

AI summary

Systems and methods are provided for manually setting up a wire drive assembly of a welding power supply and automatically setting up welding power supply parameters. A drive roll is configured with multiple grooves for receiving multiple wires of different types and/or different diameters. A sensor can detect the configuration of the drive roll such as, for example, being configured to receive a particular wire type with a particular diameter in a particular groove, by detect a distance to the drive roll. The welding power supply can use this information to automatically set the wire speed.