Electrode-Tab Weld Strength Inspection by Oblique Tensile Pulling
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Solution Overview
Problem
Existing electrode-tab assembly inspection methods lack reliability in ensuring consistent and accurate measurement of welding strength between electrodes and electrode tabs, leading to potential premature breakage of electrode tabs before welded parts are broken.
Innovation Solution
An electrode-tab assembly inspection device with a first jig to fix the electrode, a second jig to pull the electrode tab in a non-parallel direction, and a gauge to sense tensile force, allowing for consistent application of tensile force perpendicular or oblique to the electrode, thereby preventing premature breakage and enabling reliable measurement of welding strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tensile force is applied in a direction parallel to the electrode during inspection, then the inspection process is simple, but the electrode tab breaks before the welded part fails, leading to unreliable measurement of welding strength
Solution Approach 1:
The patent applies tensile force in a direction not parallel to the electrode (oblique or perpendicular direction), changing the dimension of force application from parallel to non-parallel. This dimensional change prevents the electrode tab from breaking before the welded part fails, ensuring reliable measurement of welding strength while maintaining manageable device complexity through the use of adjustable jigs and force application mechanisms
2Measurement precision
If the electrode tab is pulled in a direction perpendicular or oblique to the electrode, then accurate welding strength measurement is achieved, but the inspection device becomes more complex
Solution Approach 1:
The patent employs a dynamic inspection system where the second jig can be adjusted to apply tensile force in different directions (oblique or perpendicular to the electrode). The system includes adjustable components and mechanisms that allow flexible positioning and angle adjustment, enabling precise control of force application direction to achieve accurate welding strength measurement without requiring multiple fixed complex devices
Solution Approach 2:
The patent changes the parameters of force application by adjusting the direction angle (from parallel to oblique or perpendicular) and magnitude of tensile force. This parameter adjustment allows optimization of the inspection process to prevent electrode tab breakage while ensuring the welded part fails first, achieving precise measurement without permanently increasing device complexity
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 device ensures reliable and accurate measurement of welding strength by preventing electrode tab breakage before welded parts fail, enhancing the reliability of the inspection process.
Implementation Method 1
a gauge configured to sense a tensile force applied to the electrode tab
Data Source
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AI summary
Embodiments provide an electrode-tab assembly inspection device. The electrode-tab assembly inspection device includes: a first jig configured to fix an electrode including a coated part and an uncoated part; a second jig configured to pull an electrode tab, which is welded to the uncoated part of the electrode, in a direction that is not parallel to the electrode; and a gauge configured to sense a tensile force applied to the electrode tab.