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Variable-curvature focusing light beam lens high-power water-guided laser water-light coupling device

A coupling device and variable curvature technology, which is applied in laser welding equipment, welding equipment, metal processing equipment, etc., to achieve the effects of eliminating gas explosion, improving processing efficiency, and increasing power

Inactive Publication Date: 2021-12-14
SHANDONG UNIV OF TECH
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Problems solved by technology

[0005] Aiming at the gas explosion problem of water-optic coupling in the traditional water-guiding laser processing system, the inventor invented a high-power water-guiding laser water-optic coupling device with variable curvature focusing beam lens

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  • Variable-curvature focusing light beam lens high-power water-guided laser water-light coupling device
  • Variable-curvature focusing light beam lens high-power water-guided laser water-light coupling device

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Embodiment Construction

[0019] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, the high-power water-guiding laser water-optical coupling device with variable curvature focusing optical column lens is composed of variable curvature focusing optical column lens (1), water-optical coupling cavity (2), glass window (3), high-pressure pure water (4 ), water jet nozzle (5), focusing light column (6), light guide water jet water column (7), cylindrical parallel laser beam (8), etc.; variable curvature focusing light column lens (1) is located in the water-optical coupling cavity ( 2) directly above; the water-optical coupling cavity (2) has a cylindrical structure, with a cylindrical cavity inside, and a circular hole (12) is opened in the center of the upper wall of the cavity for the laser beam Injection, a piece of circular plate glass is fixed close to the lower surface of the upper wall...

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Abstract

The invention discloses a variable-curvature focusing light beam lens high-power water-guided laser water-light coupling device, and belongs to the technical field of laser processing. The device is characterized in that an optical lens is a variable-curvature focusing light beam lens, a cylindrical laser beam enters the water-light coupling device after passing through the variable-curvature focusing light beam lens, a light beam formed by connecting a plurality of focusing points is formed along the axis of water jet after entering a water jet nozzle, and the laser beam is focused to each light spot and then diverged. The laser beam is transmitted along a water column of the water jet in a total reflection mode, and water-light coupling is achieved. Compared with a traditional water-guided laser water-light coupling device, the variable-curvature focusing light beam lens high-power water-guided laser water-light coupling device has the advantages that due to the fact that an original spherical lens is changed into the variable-curvature focusing light beam lens, one focusing point is changed into a plurality of focusing points, the energy density of each focusing point is remarkably reduced, the water explosion phenomenon at the focusing points is effectively avoided, the laser power is remarkably improved, and the processing efficiency of the water-jet guided laser is further improved.

Description

technical field [0001] The invention belongs to the technical field of laser processing, in particular to a water-optical coupling device of a water-conducting laser processing system. Background technique [0002] Compared with traditional laser cutting, water guide laser cutting has the following advantages: (1) There will be no thermal damage, because the sprayed water can cool the material between laser pulses, greatly reducing the thermal deformation and thermal damage of the material, so that the material maintains its original structure and performance; (2) The water jet has a large working distance and does not need to focus; (3) The water jet will take away the molten material during the cutting process and reduce pollutants; (4) High processing precision, especially suitable for high-precision processing of thin-walled parts. [0003] In addition to cutting, the water-guided laser can also be used for drilling, grooving, and surface cleaning of workpieces. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/70B23K26/06
CPCB23K26/702B23K26/0626
Inventor 赵玉刚刘谦王珂郑志龙赵国勇张桂香孟建兵张海云周海安李丽蒲业壮高跃武
Owner SHANDONG UNIV OF TECH
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