Workpiece Image Visualization for Sheet Metal Sorting Quality

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Solution Overview

Problem

Machine operators in sheet metal processing face difficulties in receiving timely and relevant information about workpiece quality and processing issues during the sorting process, leading to inefficiencies and challenges in quality control.

Innovation Solution

A method for visualizing manufacturing process information using a flatbed machine tool, which involves providing workpiece image data and manufacturing process information, assigning display options to specific features, and displaying this information on a display unit, utilizing color coding and symbols to highlight quality issues and process anomalies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If camera-based support systems are used to monitor the sorting process, then the sorting process can be monitored, but the machine operator does not receive timely and relevant information about workpiece quality and processing issues

Engineering Contradiction:
Improveinformation about workpiece quality and processing issuesVSAvoidoperator's ability to receive and process information
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent applies color coding to visually encode manufacturing process information and quality status on workpiece images. Different colors indicate different quality categories or processing issues, enabling operators to quickly perceive and differentiate between various workpiece states without reading text or analyzing complex data, thus resolving the information loss while maintaining ease of operation

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent segments manufacturing process information into distinct visual categories represented by different colors and symbols on the workpiece images. This segmentation allows operators to quickly identify specific quality issues or processing problems without being overwhelmed by undifferentiated information, addressing both information completeness and operational ease

Inventive Principle:
Principle #1Segmentation

2Reliability

If detailed manufacturing process information is displayed to operators, then quality control can be improved, but the complexity of the display system and information processing increases

Engineering Contradiction:
Improvequality controlVSAvoiddisplay system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses color coding to represent different quality categories and processing information, transforming complex manufacturing data into simple visual cues. This approach maintains high reliability for quality control while minimizing display system complexity by using intuitive color representations instead of detailed text or numerical displays

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent creates visual copies of workpiece images with superimposed color-coded information overlays. These graphical representations convey detailed manufacturing process information without requiring complex display hardware or interfaces, achieving reliable quality control through simplified visual copying rather than complex system architecture

Inventive Principle:
Principle #26Copying

3Productivity

If operators manually sort and allocate workpieces without visual aids, then the sorting process can proceed, but it becomes time-consuming and less efficient

Engineering Contradiction:
Improvesorting and allocation efficiencyVSAvoidtime for sorting and allocation
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent implements color-coded visual indicators directly on workpiece images that immediately convey quality status and sorting requirements. This enables operators to perform sorting and allocation tasks rapidly by visually identifying workpiece categories without manual inspection or complex decision-making, significantly improving productivity while reducing time loss

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent prepares and displays visual information about workpiece quality and sorting requirements before the actual sorting process begins. By providing advance visual guidance through color-coded images, operators can perform sorting tasks more efficiently without time-consuming manual inspection, addressing both productivity improvement and time reduction

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3867027B1Method for visualizing process information during the production of sheet metal components
Publication Date: 2022.11.23 TRUMPF WERKZEUGMASCHINEN GMBH & CO KG
  • EP3867027B1 patent drawingFigure 1
  • EP3867027B1 patent drawingFigure 2
  • EP3867027B1 patent drawingFigure 3

AI summary

The invention relates to a method for visualizing production process information (3A) during production of workpieces (23A, ...) by means of a flat bed machine tool (3), wherein workpiece image data (23A', ...) are provided in a production control system (5), wherein the workpiece image data (23A', ...) are associated with at least of the workpieces (23A, ...) of a material to be cut (10) and are designed for display on a display unit (15, 16, 17). Furthermore, workpiece-specific production process information (3A) is provided in the production control system (5), wherein the production process information (3A) was captured specific to the workpiece during production of the workpieces (23A, ...) in the flatbed machine tool (3). Depiction options (15A) are provided in a database, each of which are associated with a specific production feature of the production process information (3A) and are applicable to the workpiece image data (23A, ...) in order to effect a depiction of workpiece image data (23A', ...), specified specifically for a production feature, on a display unit (15). The workpiece image data (23A', ...) of the at least one of the workpieces (23A, ...) of the material to be cut (10) are displayed on the display unit (15, 16, 17) under workpiece-specific consideration of the depiction options (15A).