Screw Detection Device with Adjustable Guide Rails and Auto-Focus Cameras
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Solution Overview
Problem
Existing screw detection devices require manual adjustment of rotary disks and refocusing of detection cameras for different screw sizes, leading to increased error rates and difficulty in determining defective products.
Innovation Solution
A screw detection device with a linear carrying rail, adjustable guide-rail assemblies, and automatically controlled visual-detection cameras, which allows for presetting of adjusting parameters to accommodate screws of different sizes without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustment of rotary disks and refocusing of detection cameras is used for different screw sizes, then the device can detect multiple screw sizes, but the detection error rate increases and operation convenience deteriorates
Solution Approach 1:
The patent employs adjustable guide-rail assemblies that can dynamically change spacing to accommodate different screw sizes. The focal-length-controlling assemblies allow the detection cameras to dynamically adjust their focal lengths based on the detected screw size, replacing static manual configuration with dynamic adaptive adjustment.
Solution Approach 2:
The system changes key parameters including the spacing between guide-rail assemblies and the focal length of detection cameras according to the screw size being detected. The controlling module automatically adjusts these parameters based on preset values, eliminating manual intervention and ensuring consistent detection accuracy across different screw sizes.
2Adaptability or versatility
If manual adjustment of rotary disks and refocusing of detection cameras is used for different screw sizes, then the device can detect multiple screw sizes, but operation convenience deteriorates
Solution Approach 1:
The controlling module automatically controls the space-adjusting assembly and focal-length-controlling assemblies based on preset parameters for different screw sizes. The system performs self-adjustment without requiring manual intervention, making the operation convenient while maintaining the ability to detect multiple screw sizes.
Solution Approach 2:
The system stores preset adjusting parameters for different screw sizes in advance. When a screw size is detected, the controlling module retrieves the corresponding preset parameters and automatically adjusts the guide-rail spacing and camera focal lengths, eliminating the need for manual configuration during operation.
3Measurement precision
If multiple rotary disks with different sizes are used to detect screws of different sizes, then detection accuracy is maintained, but device complexity and cost increase
Solution Approach 1:
The patent employs a single linear carrying rail with adjustable guide-rail assemblies that can accommodate multiple screw sizes through parameter adjustment. The detection cameras with adjustable focal lengths serve multiple functions by detecting different screw sizes without requiring separate dedicated systems for each size, thereby reducing device complexity while maintaining detection accuracy.
Solution Approach 2:
The system replaces multiple static rotary disks with a single dynamic linear carrying rail that can adapt its configuration through adjustable guide-rail assemblies. This dynamic adjustment capability allows one structure to perform the function of multiple fixed structures, reducing overall device complexity.
4Adaptability or versatility
If manual adjustment procedures are used for different screw sizes, then the device can be reconfigured, but time consumption increases
Solution Approach 1:
The system stores preset adjusting parameters for different screw sizes in advance within the controlling module. When reconfiguration is needed, the system automatically retrieves and applies the appropriate preset parameters, eliminating the time-consuming manual adjustment process while maintaining full reconfiguration capability for different screw sizes.
Solution Approach 2:
The controlling module automatically performs the adjustment of guide-rail spacing and camera focal lengths based on preset parameters, eliminating the need for manual intervention. This self-service capability dramatically reduces adjustment time while preserving the ability to reconfigure for different screw sizes.
Data Source
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AI summary
A screw detection device is configured to detect screws and has a device base (10) with a controlling module (12), a carrying mechanism (20), a top visual-detection mechanism (30) and a lateral visual-detection mechanism (40) mounted inside. A screw (50) is fed into the device base (10) and is carried on a carrying rail (21) of the carrying mechanism (20). A top visual-detection camera (31) and a lateral visual-detection camera (41) take photographs of the screw (50) on the carrying rail (21). The controlling module (12) determines whether the screw (50) is defective based on the photographs and controls a classifying assembly (13) to discard a defective screw. The controlling module (12) automatically controls the carrying rail (21), the top visual-detection camera (31) and the lateral visual-detection camera (41), letting the screw detection device meet different-size screws' detection needs.