U-Shaped Workpiece Bonding with Corner-First Pressing
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Solution Overview
Problem
Existing battery module casings face issues with incomplete bonding due to gaps caused by dimensional tolerances and uneven cross-sections, particularly at corner portions, leading to low bonding effectiveness.
Innovation Solution
A bonding device and method that includes an abutting component and a pressing component, controlled by a control component, which first presses the corner portion of a U-shaped workpiece to eliminate gaps before pressing the face portion, using a sequence of pressing steps to enhance bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If only the face portion of the workpiece is pressed during bonding, then the bonding process is simple, but the gap at the corner portion cannot be eliminated resulting in low bonding effect
Solution Approach 1:
The pressing component is divided into a face portion pressing component and a corner portion pressing component, allowing independent pressing of different regions. This segmentation enables the corner portion to be pressed separately to eliminate gaps while maintaining overall process simplicity.
Solution Approach 2:
Different pressing strategies are applied to different regions of the workpiece. The corner portion pressing component applies targeted pressure to eliminate gaps at the corner, while the face portion pressing component handles the main bonding area, optimizing bonding quality for each specific region.
2Productivity
If dimensional tolerances and uneven cross-sections are not addressed, then the bonding process is fast, but gaps remain between workpieces resulting in incomplete bonding
Solution Approach 1:
The abutting component performs preliminary alignment and gap closure before the pressing component applies bonding pressure. This preliminary action addresses dimensional tolerances and uneven cross-sections in advance, ensuring complete bonding without requiring excessive pressing time.
Solution Approach 2:
The abutting component pre-compensates for dimensional tolerances and cross-sectional unevenness by eliminating gaps before bonding. This preliminary counter-action prevents bonding defects from occurring in the first place, maintaining both speed and reliability.
3Manufacturing precision
If the pressing sequence is optimized to press corner portion first, then the bonding quality is improved, but the control complexity increases
Solution Approach 1:
The control component dynamically sequences the pressing operation, activating the corner portion pressing component before the face portion pressing component. This dynamic control optimization improves bonding quality through proper sequencing while keeping the control system adaptable and manageable.
Data Source
AI summary
A bonding device bonds a workpiece having a U-shaped cross-section and face and corner portions, and includes: an abutting component abutting the workpiece in a first direction; a pressing component pressing the workpiece in a second direction to fix the workpiece; a control component controlling the abutting and pressing components. The pressing component includes a face portion pressing component pressing the face portion and a corner portion pressing component pressing the corner portion. The abutting component moves to abut the workpiece, and the pressing component moves to press the workpiece in a state in which the abutting component is moved. A sequence of the control component controlling the pressing component to move includes: controlling the corner portion pressing component to move to press the corner portion, then controlling the face portion pressing component to move to press the face portion. A bonding method includes abutting and pressing steps.