Laser high-speed scanning and welding system based on galvanometer for battery box, and working method

Abstract

The invention discloses a laser high-speed scanning and welding system based on a galvanometer for a battery box. The laser high-speed scanning and welding system comprises a rack and a laser weldingprotection cabin, wherein a transport line used for workpiece transport is arranged on the rack; the laser welding protection cabin is arranged on the transport line; a fixture and a special long-distance laser welding machine based on the galvanometer are arranged in the laser welding protection cabin; a conveying mechanism used for conveying workpieces is arranged on the transport line; the fixture is arranged on the conveying mechanism; the special long-distance laser welding machine is arranged at the top of the laser welding protection cabin; and the transport line, the fixture, the special long-distance laser welding machine, a tray and a follow-up fixture are all connected with a control centre. According to the laser high-speed scanning and welding system disclosed by the invention, the battery box is scanned and welded through the special long-distance laser welding machine; a laser welding process can be efficiently and stably carried out through the rapid rotation of the galvanometer; and a facular movement track can be set to carry out waveform control, so that an ideal welding effect is achieved. The device is high in welding speed, and generates small thermal deformation, thereby greatly increasing the production efficiency, and also effectively improving the welding accuracy and welding quality.

Description

technical field [0001] The invention belongs to the field of production and manufacturing, in particular to a laser high-speed scanning welding system for a battery box based on a vibrating mirror. Background technique [0002] With the rapid development of social economy, both work and life are mostly modernized and intelligent, and people's requirements for product quality are getting higher and higher, and the quality requirements for batteries are also the same. [0003] At present, automotive technology is undergoing a major technological change of power electrification. Electric vehicles have the advantages of high efficiency, energy saving, low emission or zero emission, so they are highly valued by various countries. The biggest bottleneck of new energy is the on-board power battery, whose lifespan and safety play a vital role. The shell of the power battery is a key component and plays the role of packaging. The traditional power battery case welding method is to ...

AI Technical Summary

Problems solved by technology

The traditional power battery case welding method is to drive the laser welding head to move through the XY electronically controlled servo workbench of the laser welding equipment, determine the welding position, and complete the automatic welding operation of the battery box workpiece after fine-tuning. The whole process takes too long. Both the processing efficiency of the method and the one-time pass rate of workpiece welding are difficult to meet the market's high-quality and efficient production requirements for the processing process, so the traditional battery box processing method cannot meet the current production needs

Images