Laser machining device based on ultrasonic location and machining method

Abstract

The utility model provides a laser machining device based on an ultrasonic location and a machining method. The laser machining device based on the ultrasonic location comprises a machining platform, a clamping device, a laser head and an ultrasonic range-measurement device, wherein the clamping device arranged above the machining platform comprises a transverse clamping connecting part and a longitudinal clamping connecting part, the transverse clamping connecting part and the longitudinal clamping connecting part are connected with each other in a pivot mode, the laser head is in pivot connection with the transverse clamping connecting part of the clamping device and arranged above the machining platform, and the ultrasonic range-measurement device is in pivot connection with the longitudinal clamping connecting part of the clamping part. The laser machining device based on the ultrasonic location can guarantee laser machining quality, improves machining accuracy, and can fast and conveniently confirm change situations of defocusing amount during machining.

Description

technical field [0001] The invention relates to a laser processing head, in particular to a laser processing device and processing method based on ultrasonic positioning. Background technique [0002] When using a laser to process a workpiece, the position of the laser spot is generally determined by a helium-neon laser, especially when welding or cutting a larger workpiece, such as tailor welding of a large plate, because the plate surface cannot be guaranteed to be flat, which will cause laser During the welding process, the defocus of laser welding parameters changes, which requires the operator to measure the height of the laser head after a period of time, so as to prevent a large change in the defocus, which will deteriorate the welding performance and make the processed The workpiece does not meet the requirements. At present, a ruler is used to measure the distance between the workpiece and the lens to calculate the defocus amount. This is a large workload, and there...

AI Technical Summary

Problems solved by technology

[0002] When using a laser to process a workpiece, the position of the laser spot is generally determined by a helium-neon laser, especially when welding or cutting a larger workpiece, such as tailor welding of a large plate, because the plate surface cannot be guaranteed to be flat, which will cause laser During the welding process, the defocus of laser welding parameters changes, which requires the operator to measure the height of the laser head after a period of time, so as to prevent a large change in the defocus, which will deteriorate the welding performance and make the processed The workpiece does not meet the requirements. At present, a ruler is used to measure the distance between the workpiece and the lens to calculate the defocus amount. This is a large workload, and there are also large differences between multiple measurements, resulting in welding or cutting. The decrease in precision greatly affects the quality of welding or cutting. At present, there is an urgent need for a system that can automatically adjust the distance between the laser processing head and the surface of the workpiece, which can greatly reduce the workload and improve production efficiency and processing accuracy.

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