Workpiece Display Highlighting for Accurate Bending Machine Setup
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Solution Overview
Problem
Operators face challenges in accurately setting workpieces on bending machines due to numerous holes or difficult-to-find features, leading to increased errors and reworking when the features serving as marks are not clearly visible on display screens.
Innovation Solution
A workpiece display assistance device that generates an original model of the workpiece, creates matching models by rotating and inverting it, extracts aligned sections, synthesizes these sections into a matching aggregate model, and determines a feature point for highlighting on the display screen, providing a clear visual aid for operators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the workpiece is displayed on the display screen with multiple holes or features, then the operator can see the workpiece image, but the operator cannot clearly identify the feature point serving as a mark for setting
Solution Approach 1:
The patent extracts the feature point information from the complex workpiece image by generating multiple matching models (original, rotated, and inverted versions) and comparing them to identify aligned portions. This extraction process isolates the critical feature point from the distracting background of multiple holes and features, making it clearly visible and identifiable for the operator.
Solution Approach 2:
The system performs preliminary processing by generating matching models and extracting feature points before the operator needs to set the workpiece. The feature point is identified and highlighted in advance through model comparison and aggregation, so that when the operator views the display screen, the correct orientation mark is already clearly marked, eliminating the need for the operator to manually search through multiple features.
2Productivity
If the operator sets the workpiece based on the displayed image without clear feature point identification, then the setting process can be completed, but errors in workpiece setting increase leading to defective products
Solution Approach 1:
The system provides visual feedback by highlighting the identified feature point on the display screen. The determination unit compares the original model with the matching aggregate model and provides clear visual indication of the correct orientation through highlighting. This feedback mechanism ensures the operator can quickly and accurately identify the correct feature point, maintaining both high setting speed and high accuracy, thereby preventing defective products.
3Adaptability or versatility
If the workpiece has many holes or difficult-to-find features, then the workpiece design can be more complex, but the time required for correct setting increases and reworking occurs
Solution Approach 1:
The patent creates digital copies of the workpiece model in various orientations (original, rotated 90°, 180°, 270°, and inverted versions). By comparing these copied models, the system can identify the feature point regardless of the workpiece's actual orientation or complexity. This copying approach allows the system to handle complex workpiece designs with multiple holes and features while quickly identifying the correct orientation mark, thus maintaining design flexibility without increasing setting time.
Data Source
AI summary
A workpiece display assistance device according to one aspect includes: a first model generation unit that obtains shape data of a workpiece to be set, and generates an original model based on the shape data; a second model generation unit that generates a plurality of matching models by rotating and/or inverting the original model; an extraction unit that matches each matching model to the original model and extracts aligned portions of the respective matching models with the original model as matching sections; a model creation unit that creates a matching aggregate model by aggregating the matching sections in a state conforming to the original model and synthesizing the matching sections aggregated; a determination unit that compares the original model and the matching aggregate model and makes a determination of a feature point on the workpiece; and a display unit that displays the feature point in a highlightable manner, along with an image of the workpiece, on a display screen based on the determination result.