Press Inspection Frame Layout for Vibration-Free Image Capture
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Solution Overview
Problem
Manual appearance inspection of press-formed parts from a press machine is inefficient due to high labor requirements and interference from machine vibrations when using cameras for automated inspection.
Innovation Solution
A press machine with a conveyance unit, frame-mounted image capturing unit, and vibration isolation mechanism that captures images of press-worked parts outside the press unit, using multiple cameras and machine learning to determine part posture and quality based on feature parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the camera is attached to the press machine to perform automated appearance inspection, then labor requirements are reduced and productivity is improved, but large vibrations from the operating press machine cause the camera to be unable to correctly capture the inspection target
Solution Approach 1:
The image capturing unit is extracted from the press machine structure and installed on a separate stand positioned beside the press machine. This physical separation removes the camera from the source of vibrations, allowing it to capture clear images of pressed articles without being affected by the press machine's operational vibrations, thereby resolving the contradiction between automation and image capture accuracy
Solution Approach 2:
A stand serves as an intermediary structure between the press machine and the image capturing unit. This intermediate platform provides a stable, vibration-isolated mounting position for the camera, enabling it to function effectively near the press machine without direct exposure to its vibrations, thus maintaining both productivity and measurement precision
2Measurement precision
If manual appearance inspection is performed, then image capture accuracy is maintained, but labor requirements increase and inspection efficiency is limited by manual processing speed
Solution Approach 1:
The manual inspection process is replaced with an automated image capturing system that uses a camera to capture images of pressed articles and an inspection circuit to automatically analyze them. This substitution of mechanical/manual operations with automated optical and computational systems dramatically increases inspection speed while maintaining accuracy, resolving the contradiction between manual precision and automated productivity
3Adaptability or versatility
If multiple cameras are installed to capture images from various angles for comprehensive inspection, then inspection coverage is improved, but device complexity increases
Solution Approach 1:
The image capturing unit is designed as a multi-functional system that can capture images from multiple angles and positions. By using a single versatile camera system that can be positioned to capture top, side, and other relevant views, the patent achieves comprehensive inspection coverage without proportionally increasing device complexity, as one camera system performs multiple inspection functions
Data Source
AI summary
A press machine includes a press unit 101, a conveyance unit (102), a frame (103), an image capturing unit (104), a sensor (105), a controller (106), an inspection circuit (107), and a display (108). The frame (103) is arranged outside the press unit (101) The frame (103) includes a first leg (111a) and a second leg (111b), which are installed on a floor (161) on both sides of the conveyance unit (102), and a beam (112) laid between the first leg (111a) and the second leg (111b) while straddling the conveyance unit (102). The image capturing unit (104) is attached to the frame (103) installed on the floor (161) on both sides of the conveyance unit (102).