Efficient multi-freedom-degree ultrasonic vibration assisted double-sided laser machining device

Abstract

The invention discloses an efficient multi-freedom-degree ultrasonic vibration assisted double-sided laser machining device which is composed of a machine frame, an automatic feeding and discharging device, a double-sided laser machining device body, a three-freedom-degree moving device, an ultrasonic vibration assisting device, an assisted air blowing device, a controller and a monitoring device.The automatic feeding and discharging device can automatically move workpieces to all working positions. The double-sided laser machining device body can machine the two sides of each workpiece at the same time, the taper of the machined workpieces is reduced, and the single-side laser machining can be conducted. The three-freedom-degree moving device can rapidly move the workpieces. The ultrasonic vibration assisting device can realize the three-freedom-degree vibration of the workpieces and reduce recast layers, oxides, micro cracks and other defects in the laser machining process. The assisted air blowing device can reduce the splashing of melt during machining through coaxial and paraxial air blowing. The efficient multi-freedom-degree ultrasonic vibration assisted double-sided lasermachining device has the advantages of being reliable in work, high in automation degree, diversified in function, convenient to maintain, high in work efficiency, high in workpiece machining quality,high in applicability and the like.

Description

technical field [0001] The invention belongs to the field of ultrasonic vibration composite laser processing, in particular to a high-efficiency multi-degree-of-freedom ultrasonic vibration-assisted double-sided laser processing device. Background technique [0002] With the continuous development of laser processing technology, laser has been applied to the processing of various materials, such as metals, polymers, composite materials, etc.; For materials with melting point, laser processing has good applicability, for example, its high processing quality, high processing efficiency, wide range of processing materials, and micro-hole processing can be realized; due to these excellent characteristics of laser processing, it has been used in high-end cutting-edge aviation related fields. [0003] In recent years, some scholars and researchers have done a lot of research on laser processing. For example, the patent (201721633214.8) proposed an ultrasonic vibration-assisted la...

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Problems solved by technology

[0003] In recent years, some scholars and researchers have done a lot of research on laser processing. For example, the patent (201721633214.8) proposed an ultrasonic vibration-assisted laser processing device, which generates vibration through an ultrasonic generator, and then transmits the vibration to the laser through the medium water. Although the workpiece to be processed can reduce processing defects to a certain extent, since the vibration is transmitted through the medium, the amplitude and frequency of the vibration cannot be accurately controlled, so the stability of the processing quality cannot be guaranteed.

[0004] The patent (201811504646.8) proposes a radial ultrasonic vibration lens-assisted laser processing device, which applies a radial vibration to the lens to improve the processing quality by changing the energy distribution at the laser focus, but this method cannot accelerate the slag discharge, so that processing defects such as molten layer and oxide are formed

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