Electrode Tab Pressing Plate Structure for Stable Welding Alignment
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Solution Overview
Problem
The lack of stable pressing plate structures for electrode assemblies during welding leads to unstable welding quality of tabs, resulting in rosin joints due to positioning deviations and unnecessary displacement of pressing plates.
Innovation Solution
A pressing plate structure with a first crimping portion and a second crimping portion fixedly connected, where the second crimping portion protrudes downward from the first, allowing them to be crimped onto the tab while the first portion abuts against the electrode assembly, preventing shaking and ensuring consistent welding without relative displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single pressing plate structure is used for welding tabs, then the device complexity is reduced, but the welding quality becomes unstable due to positioning deviations and shaking
Solution Approach 1:
The pressing plate structure is divided into two separate pressing plates: a first pressing plate for pressing the electrode assembly body and a second pressing plate for pressing the tab. This segmentation allows each pressing plate to independently stabilize its respective component, preventing relative displacement and shaking during welding, thereby improving welding quality without significantly increasing overall device complexity.
2Force
If the pressing plate moves to crimp the tab, then the crimping force is applied, but the tab and electrode assembly shake during welding due to positioning deviations
Solution Approach 1:
By separating the pressing function into two independent pressing plates, each plate can apply crimping force to its specific target (body or tab) while maintaining stable positioning. The first pressing plate stabilizes the electrode assembly body, and the second pressing plate stabilizes the tab, preventing shaking during welding while ensuring adequate crimping force is applied to both components.
3Ease of manufacture
If a simple pressing structure is used, then the ease of manufacture is improved, but rosin joints occur due to relative displacement between pressing plates
Solution Approach 1:
The pressing structure is segmented into two independently controllable pressing plates, each responsible for a specific component (body or tab). This segmentation allows each plate to be optimized for its specific function while maintaining manufacturing simplicity. The independent positioning and movement of each plate prevent relative displacement issues that cause rosin joints, thereby improving welding precision without significantly complicating the manufacturing process.
Data Source
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AI summary
This application relates to a pressing plate structure and a welding machine. The pressing plate structure includes a frame and a pressing block unit. The pressing block unit includes a first crimping portion and a second crimping portion fixedly connected to each other. The first crimping portion is movably disposed on the frame in a first direction to approach or leave the electrode assembly; the second crimping portion protrudes downward from the first crimping portion in the first direction; and the second crimping portion is provided with a welding hole extending in the first direction. When the first crimping portion abuts against a side surface of a body of the electrode assembly, the second crimping portion is capable of being crimped onto a tab of the electrode assembly, and the welding hole exposes part of the tab. The pressing plate structure and welding machine in embodiments of this application can effectively improve welding quality of tabs.