Continuous-Motion Laser Welding for Sequential Weld Points
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Solution Overview
Problem
Current welding efficiency in battery production is low due to the static position of the welding mechanism, requiring time for the mechanism to move between welding points, which is not utilized for welding.
Innovation Solution
A welding apparatus with an identification mechanism to obtain position information and a controller to control the welding mechanism's movement to the next welding point, allowing continuous sequential welding, utilizing time saved in movement for welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the welding mechanism remains static at each welding point, then welding precision is improved, but welding efficiency deteriorates due to time-consuming movement between points
Solution Approach 1:
The welding mechanism transitions from a static position-by-position approach to a dynamic moving approach. The welding mechanism moves continuously along the welding path while performing welding operations, eliminating idle movement time between discrete points. This dynamic operation mode allows the mechanism to maintain welding precision while improving overall welding efficiency by utilizing the movement time for welding rather than requiring separate positioning and welding phases.
Solution Approach 2:
The welding process transitions from discontinuous (stop at each point, move to next point) to continuous (weld while moving). The welding mechanism performs welding operations continuously during its movement along the welding path, ensuring that the welding action is uninterrupted. This continuity eliminates the loss of time associated with repositioning between welding points, as the useful welding action occurs throughout the entire movement process.
2Manufacturing precision
If the welding mechanism moves to each welding point sequentially, then all welding points can be covered, but welding time increases due to movement delays
Solution Approach 1:
The system employs dynamic positioning and welding operations, where the welding mechanism moves continuously while performing welding. The identification mechanism dynamically tracks welding points along the path, and the welding mechanism adjusts its welding parameters and position in real-time during movement. This dynamic approach maintains positioning accuracy for all welding points while reducing total welding time by eliminating sequential repositioning delays.
Solution Approach 2:
The identification mechanism performs preliminary identification of welding points along the entire path before welding begins. This allows the welding mechanism to be pre-programmed with the complete welding path and all welding point locations, enabling it to move continuously through all points without stopping for identification or repositioning calculations during the actual welding process, thereby reducing total welding time while maintaining precision.
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
Reduces welding time and improves efficiency by allowing the welding mechanism to perform welding during movement to the next point, using the identification mechanism to optimize the process.
Implementation Method 1
The welding galvanometer is configured to deflect laser emitted by the laser head to the welding point
Implementation Method 2
The laser head is configured to emit laser to weld the welding point
Data Source
AI summary
A welding apparatus is provided, including a welding mechanism, an identification mechanism, and a controller. The identification mechanism is configured to obtain position information of welding points. The controller is electrically connected to the identification mechanism and the welding mechanism, and the controller is configured to control, based on the position information, the welding mechanism to move to a next welding point when welding a welding point, so that the welding mechanism completes sequential welding of a plurality of welding points in a continuous moving process. The welding apparatus reduces welding time of the welding mechanism and improves welding efficiency. This application further relates to a welding method.