Laser Detection for Sheet Metal Opening Precision
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Solution Overview
Problem
Existing sheet metal processing technologies lack precision in checking the conditions of sheet metal openings, leading to potential defects and increased production of rejects due to misalignment, tool wear, or incorrect tool usage.
Innovation Solution
A high-precision detection system using a detection beam, such as a laser beam, to accurately determine the geometric state of sheet metal openings, allowing for immediate correction and ensuring maximum process reliability by comparing the actual state with a target state and initiating corrective measures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional detection methods are used for sheet metal openings, then the checking process is simpler, but the measurement precision and manufacturing precision are insufficient leading to defects and rejects
Solution Approach 1:
The patent replaces conventional mechanical or simple optical detection methods with a laser-based detection system. The laser beam serves as the detection means to accurately measure the position and geometry of sheet metal opening edges, substituting mechanical measurement contact with non-contact optical measurement, thereby achieving higher precision without mechanical wear or contact interference
Solution Approach 2:
The patent introduces a laser beam as an intermediary detection medium between the detection system and the sheet metal opening. The laser beam interacts with the material at the opening edges, and by detecting the position where the laser beam passes through or reflects from the opening, the system achieves precise measurement of the opening geometry without direct mechanical contact
2Manufacturing precision
If high-precision detection is implemented, then manufacturing precision improves, but the device complexity and cost increase
Solution Approach 1:
The patent implements a closed-loop feedback system where the laser detection system continuously monitors the position and geometry of sheet metal opening edges, compares the detected values with target values, and automatically generates correction signals. This feedback mechanism enables real-time adjustment of the sheet metal processing, ensuring manufacturing precision while automating the correction process to reduce operational complexity
Solution Approach 2:
The system incorporates automatic correction capabilities where the detection system itself triggers and executes correction actions without external intervention. When deviations are detected, the system automatically generates correction signals that adjust the sheet metal processing parameters or positioning, enabling the system to self-correct and maintain precision without requiring complex external monitoring or manual adjustment
3Productivity
If detection and correction are performed immediately during operation, then productivity is maintained, but the device complexity increases
Solution Approach 1:
The patent implements continuous detection and correction during the sheet metal processing operation. The laser detection system operates continuously alongside the manufacturing process, constantly monitoring opening geometry and immediately triggering corrections when deviations are detected. This continuous operation ensures that productivity is maintained without interruption for separate inspection and correction steps, as the detection and correction are integrated into the ongoing manufacturing process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system significantly reduces rejects by enabling precise detection and correction of deviations in sheet metal openings, ensuring consistent and reliable manufacturing results.
Implementation Method 1
A detection beam, in particular a laser beam, is used
Data Source
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AI summary
Method and device for inspecting the condition of a workpiece opening as a result of workpiece machining, in particular the punching of sheet metal. The workpiece is clamped in a coordinate guide that allows it to move in a horizontal plane. A detection beam is directed towards the workpiece by a transmitter and receiver unit. This beam is reflected back by a reflector mounted below the workpiece when it is directed at the workpiece opening. To inspect the condition of the workpiece opening, the workpiece is moved by means of a detection movement so that the edge of the workpiece opening is detected. The detected actual state of the workpiece opening is compared with a corresponding target state. The inspection device can be integrated into a production setup.