1 Introduction
In recent years, with the increasing performance requirements of power batteries for new energy vehicles, the cylindrical battery turret flying welding technology has shown a positive development trend and plays a key role in ensuring the welding quality and efficiency of power batteries.
NewTFW Cylindrical Battery Turret Variable-speed Flying Welding Subsystem is mainly used for the On the Fly Laser Welding of the current collector plates and poles of cylindrical batteries. Its welding speed can reach more than 2000mm/s, and it supports multiple welding trajectories.It significantly increases the working time ratio of the laser and maximizes the equipment efficiency.
2 Process Introduction
The Cylindrical Battery Turret Flying Welding System equipment consists of three parts: the support component, the welding component and the speed measurement component.
- The support component includes the support table, the bracket, the rotary table and the turntable. The bracket and the rotary table are spaced on the table surface of the support table. The turntable has multiple positioning tools spaced along the circumferential direction of the turntable.
- The welding component includes the galvanometer welding module, and the galvanometer welding module is located at the top of the bracket.
- The speed measurement component includes the circular grating and the reading head. The reading head is located on the support table and is used to receive the signal of the circular grating.The reading head is electrically connected to the processing control module of the galvanometer welding module.
3 The Advantages Of Subsystem
After subsystem starts working, the turntable rotates at a high speed.，and NewScan galvanometer On-the-fly welding head can adaptively follow the rotation of the turntable and perform dynamic On-the-fly welding on the positioning tools spaced along the circumferential direction of the turntable.
It can perform adaptive welding during the start-up, stop and variable speed rotation of the turntable, without the need for welding after the turntable stops, reducing the interval dwell time, improving the welding efficiency, and ensuring the welding accuracy and quality stability.
- High-speed flying welding. The maximum rotational speed of the equipment can reach 200°/s, and the welding speed can reach up to 2000mm/s.
- Variable-speed welding. It can support speed changes with an acceleration of 2000°/s².
- Multiple scanning patterns. It supports various weld trajectories such as straight lines, circles, arcs, ellipses, sine lines, helixes, etc. and their combined patterns.
- Variable-speed flying test can conduct real-time compensation in the whole area, and automatically compensate for the unstable rotation speed of the workpiece and the speed change during the start and stop of the production line to maintain the welding stability.
4 Solutions
Cylindrical Battery Turret Variable-speed Flying Welding Subsystem Solution
5 Application scenarios
Currently, it is mainly used for the flying welding of the current collector plates and poles of cylindrical batteries.
Newlaz will continuously upgrade the NewTFW cylindrical battery turret Variable-speed flying welding subsystem, expand the battery adaptability to meet the welding requirements of cylindrical batteries with different models, sizes and performance requirements; improve the control system and algorithms to enhance the welding accuracy and quality; deeply integrate with advanced laser technology, automation technology, detection technology, etc., to achieve more complex welding processes and more efficient automated production processes.
