Master Jig Marking for Optical Alignment Diagnosis
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Solution Overview
Problem
Equipment used to inspect the external appearance of battery cells often becomes misaligned due to vibrations, compressed air, or friction during transfer, making it difficult to recognize and diagnose any positional issues.
Innovation Solution
A master jig with marking members, such as shape, brightness, and line marking members, is used in conjunction with an optical system to photograph and analyze its state, allowing for the determination of alignment, misalignment, and brightness states of optical systems along a movement direction, enabling simultaneous diagnosis of multiple optical systems as the jig moves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If equipment is used to inspect battery cells, then inspection capability is provided, but alignment accuracy deteriorates due to vibration and compression during transfer
Solution Approach 1:
The patent applies preliminary action by placing marking members on the master jig before the inspection process begins. These markings serve as reference points that are established in advance, allowing the system to detect and compensate for alignment deviations that occur during battery cell transfer without requiring real-time adjustment of the equipment itself.
Solution Approach 2:
The marking members act as intermediaries between the master jig and the inspection equipment. Instead of directly measuring the battery cell position, the system uses these markings as a reference framework that indirectly indicates alignment status, enabling the inspection equipment to maintain accuracy despite vibrations and compression during transfer.
2Area of stationary object
If multiple optical systems are arranged along the movement direction, then inspection coverage is improved, but diagnosis complexity increases when misalignment occurs
Solution Approach 1:
The patent segments the inspection system into multiple independent optical systems arranged along the movement direction, each responsible for inspecting specific sections. The master jig with its distributed marking members provides localized reference points for each optical system, allowing individual diagnosis of each section's alignment status without complicating the overall system diagnosis.
Solution Approach 2:
The marking members incorporate brightness variations and contrast differences that enable optical systems to easily distinguish between different sections and detect alignment deviations. The marking members include first and second markings with different brightness levels, creating visual cues that simplify the diagnosis process even when multiple systems are involved.
3Measurement precision
If marking members are added to the master jig, then alignment diagnosis capability is improved, but device complexity increases
Solution Approach 1:
Instead of making the master jig itself complex, the patent uses simple marking members (visual patterns) that copy the alignment information. These markings are straightforward geometric patterns that can be easily manufactured and detected, providing alignment diagnosis capability without adding significant complexity to the master jig structure.
Solution Approach 2:
The marking members use brightness variations and visual contrasts to encode alignment information. By incorporating markings with different brightness levels and patterns, the system achieves improved alignment diagnosis capability using simple visual elements rather than complex mechanical or electronic components.
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 method effectively diagnoses the alignment and brightness states of optical systems, facilitating the detection of misalignments and ensuring accurate inspection of battery cells by providing a comprehensive analysis of the optical system's state in real-time.
Implementation Method 1
an optical system photographs an outer surface of the master jig to acquire an image of the master jig
Data Source
AI summary
A master jig and an equipment diagnosis method using the same are disclosed. The master jig may include a case and a marking member coupled to an outer surface of the case. The equipment diagnosis method may include a step of moving the master jig inserted into a transfer device in one direction, a step in which an optical system photographs an outer surface of the master jig to acquire an image of the master jig, and a step in which a controller analyzes the image of the master jig to diagnose a state of the optical system.