Workpiece Collection Point Guidance for Accurate Flatbed Part Sorting
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Solution Overview
Problem
The existing methods for sorting and assigning workpieces produced by flat bed machine tools, such as laser cutting or punching machines, are time-consuming and prone to errors, especially when dealing with a variety of part shapes, as they rely on visual comparison with paper-based sorting, which is inefficient and error-prone.
Innovation Solution
A method and system that includes workpiece collection point units with display and signal output devices connected to a control system, allowing for real-time display of workpiece information and location indication, using imaging and data processing to support the sorting process, enabling efficient assignment and reducing errors by providing operators with clear instructions on the correct placement of workpieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual comparison with paper-based sorting is used, then operators can identify workpieces, but sorting time increases and errors occur
Solution Approach 1:
The patent replaces the manual visual comparison method with an automated optical imaging system. A camera captures images of workpieces on the sorting table, and image processing algorithms automatically identify and classify them, substituting the mechanical visual inspection process with an automated optical-electronic system that provides both speed and accuracy
Solution Approach 2:
The patent creates digital copies of workpieces through optical imaging. Instead of operators visually comparing physical workpieces with paper drawings, the system captures digital images of the workpieces and processes them through algorithms that identify workpiece types, replacing physical comparison with digital image analysis
2Adaptability or versatility
If many different part shapes are cut, then production variety increases, but part recognition and sorting becomes more difficult
Solution Approach 1:
The patent implements a dynamic image processing system that adapts to different workpiece types. The system uses configurable parameters and algorithms that can be adjusted based on the specific workpiece geometry, material, and sorting requirements, allowing it to handle high production variety through flexible, adaptive processing rather than fixed methods
Solution Approach 2:
The patent changes key processing parameters including lighting conditions, camera angles, and image processing algorithms based on the type of workpiece being sorted. By dynamically adjusting these parameters, the system maintains high recognition accuracy across diverse part shapes and configurations
3Productivity
If workpieces are placed incorrectly, then sorting speed may be maintained, but subsequent processes are adversely affected
Solution Approach 1:
The patent implements a feedback mechanism where the imaging system continuously monitors workpiece placement and provides real-time verification. The system compares the actual placement against the planned sorting configuration and can detect errors, providing feedback to operators or automated systems to correct misplaced workpieces before they affect subsequent processes
Solution Approach 2:
The patent performs preliminary identification and classification of workpieces before final placement. The imaging system captures and analyzes workpiece images, determines the correct destination, and prepares placement instructions in advance, ensuring accurate assignment before the physical sorting action occurs
Data Source
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AI summary
A workpiece collection point unit (13) for a machine tool, in particular for a flatbed machine tool, such as a flatbed laser-cutting or die-punching machine tool (3), has a depositing area (41) for workpieces (9) produced by the machine tool as part of a machining plan (16), a display unit (43) for displaying to a user (11) workpiece information about the workpieces (9) which have been deposited in the depositing region (41) and are intended for further processing, and a signaling device (47) for emitting an identification signal which indicates to a user (11) the position of the selected workpiece collection point unit (13) for depositing the workpiece (9) intended for further processing. The workpiece collection point unit (13) can be used, for example, with a method for assisting a sequence of machining steps carried out to machine workpieces (9).