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Pin-like light beam generation device and deep hole laser machining device and method

A generation device and laser processing technology, applied in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of low precision of deep hole laser processing, unfavorable deep hole etching processing, short beam Rayleigh length, etc. The effect of avoiding the increase of the processing aperture, which is conducive to the deep etching and reducing the difficulty of the etching process

Active Publication Date: 2021-09-24
齐鲁空天信息研究院
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Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide an edge beam generating device, a deep hole laser processing device and a method to solve the problems in the prior art The beam Rayleigh length generated by focusing the laser with a lens is short, and the precision and efficiency of deep hole laser processing are low, which is not conducive to deep hole etching processing.

Method used

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  • Pin-like light beam generation device and deep hole laser machining device and method
  • Pin-like light beam generation device and deep hole laser machining device and method
  • Pin-like light beam generation device and deep hole laser machining device and method

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Embodiment Construction

[0051] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and together with the embodiments of the present invention are used to explain the principle of the present invention, but not to limit the scope of the present invention.

[0052] A specific embodiment of the present invention discloses a device for generating sharp beams. Such as figure 1 As shown, the device includes a laser 1 , a collimation component 2 , and a phase mask 3 . in,

[0053] Laser 1, used to generate a Gaussian beam.

[0054] The collimating component 2 is used for collimating the Gaussian beam generated by the laser 1 . Optionally, a collimating mirror may be used, or one or more mirrors may be used instead of the collimating component 2 to collimate the Gaussian beam.

[0055] The phase mask 3 is used to control the cubic phase wavefront of the col...

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Abstract

The invention relates to a pin-like light beam generation device and a deep hole laser machining device and method, and belongs to the technical field of laser machining. The problems that in the prior art, the Rayleigh length of a light beam generated by focusing a laser through a lens is small, and the precision and efficiency of deep hole laser machining are low are solved. The pin-like light beam generation device comprises a collimation assembly used for collimating a Gaussian light beam generated by a laser device, and a phase mask plate used for carrying out cubic phase front regulation and control on the collimated Gaussian light beam to obtain a pin-like light beam. According to the device, the pin-like light beam with a large Rayleigh length can be obtained, and the precision and efficiency of deep hole laser machining are improved to a great extent.

Description

technical field [0001] The invention relates to the technical field of laser processing, in particular to an edge beam generating device, a deep hole laser processing device and a method. Background technique [0002] At present, laser technology such as laser welding, laser marking and laser cutting is widely used in the manufacturing industry, especially in the high-end manufacturing field. During laser processing, the Rayleigh length after laser focusing is an important parameter that affects the processing quality. [0003] In the prior art, a lens or a lens group is usually used to focus a laser beam, and the focused laser beam is used for laser processing. [0004] There are at least the following defects in the prior art. The Rayleigh length of the laser beam produced by focusing the laser beam with a lens or lens group is short. As the laser etches from the surface of the workpiece to its depth, the laser spot at the etched part of the workpiece gradually increases....

Claims

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Application Information

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IPC IPC(8): B23K26/046B23K26/362B23K26/70
CPCB23K26/046B23K26/362B23K26/702
Inventor 张泽刘阳梁欣丽
Owner 齐鲁空天信息研究院
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