Ultrasonic Welding Head Assembly With Synchronous Pressure Positioning
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Solution Overview
Problem
Existing ultrasonic welding devices have low efficiency due to the need for three-axis movements to adjust the welding position, which wastes time and reduces productivity.
Innovation Solution
A welding device with a frame, welding assembly, fastening bracket, protective pressure plate, first drive mechanism, and second drive mechanism, where the second welding head and protective pressure plate are connected via a fastening bracket, allowing simultaneous movement and compression for improved efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If three-axis movements are used to adjust the welding position, then the welding device can reach the welding point, but the welding efficiency is reduced due to time-consuming adjustments
Solution Approach 1:
The patent combines the protective pressure plate and the second welding head onto a single movable fastening bracket, allowing both components to be driven simultaneously by the first drive mechanism. This merging eliminates the need for separate three-axis adjustment operations, as both the pressure plate and welding head reach their positions in one coordinated motion, thereby resolving the contradiction between operational ease and welding efficiency.
2Adaptability or versatility
If the protective pressure plate and welding head move separately, then each component can be controlled independently, but the welding process takes longer time
Solution Approach 1:
By fastening both the protective pressure plate and the second welding head to the same movable fastening bracket, the patent enables synchronized movement of both components. The first drive mechanism drives the fastening bracket, which simultaneously positions both the pressure plate and welding head, eliminating sequential adjustment time while maintaining coordinated control for the welding process.
3Productivity
If one shaft is used to drive both the welding head and pressure plate, then welding efficiency is improved, but the device structure becomes more complex
Solution Approach 1:
The fastening bracket serves multiple functions: it holds both the protective pressure plate and the second welding head, acts as a movable platform for both components, and is driven by the first drive mechanism to position both simultaneously. This multi-functional design achieves efficient synchronized movement without requiring separate drive systems for each component, thereby improving productivity while limiting the increase in structural 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 achieves faster welding speeds, higher welding strength, and improved stability by enabling the second welding head and protective pressure plate to move synchronously via one shaft, thereby enhancing overall welding efficiency.
Implementation Method 1
ultrasonic welding technology is highly advantageous in the tab welding process of traction batteries
Data Source
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AI summary
The present application relates a welding device (1) and a battery welding device (1), where the welding device (1) includes a frame (11), a welding assembly (13), a fastening bracket, a protective pressure plate (14), a first drive mechanism (15), and a second drive mechanism. The welding assembly (13) includes a first welding head (131) and a second welding head (132) that are arranged opposite each other, and the first welding head (131) is fastened on the frame (11); the fastening bracket is movably provided on the frame (11), and the second welding head (132) is fastened on the fastening bracket (12); the protective pressure plate (14) is fastened on the fastening bracket (12) or the second welding head (132); the first drive mechanism (15) is drivingly connected to the fastening bracket (12) and configured to drive the fastening bracket so that the second welding head (132) reaches a position of a welding point and the protective pressure plate (14) presses against a to-be-welded member; and the second drive mechanism is connected to the second welding head (132) and configured to drive the second welding head (132) to weld the to-be-welded member. The welding device (1) can compress and weld the to-be-welded member via one shaft, thereby improving welding efficiency.