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Automatic zooming method and automatic zooming device for laser cutting machine

A laser cutting machine, automatic zoom technology, applied in laser welding equipment, welding equipment, metal processing equipment and other directions, can solve the problem of not being able to automatically adjust the lens focal length, etc., to achieve cutting expansion, eliminating additional costs and errors, and uniform laser energy. Effect

Inactive Publication Date: 2013-04-24
SUZHOU LEAD LASER TECH +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing laser processing equipment changes the focal length by manually replacing the lens, which cannot automatically adjust the focal length of the lens, or uses a single-curvature mirror to adjust the focal length, which also changes the size of the spot while adjusting the focus. Further adjustments to the spot size are required. make adjustments

Method used

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  • Automatic zooming method and automatic zooming device for laser cutting machine
  • Automatic zooming method and automatic zooming device for laser cutting machine
  • Automatic zooming method and automatic zooming device for laser cutting machine

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Embodiment Construction

[0024] The following examples serve to illustrate the invention, but do not limit it. The details and working conditions of the method and device proposed by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] Such as Figure 1-2 As shown, the laser cutting machine automatic zoom device of the present invention includes an industrial computer 1, a protective gas pressurized pump 2, a laser 3, a first variable curvature reflection device 6, a second variable curvature reflection device 10 and a lens group.

[0026] The industrial computer 1 is connected with the shielding gas booster pump 2 through a control line, and is used to control the air pressure in the cylinder 12 to control the mirror curvature of the first variable curvature reflector 6 and the second variable curvature reflector 10 . The protective gas booster pump 2 is connected to the first variable curvature reflection device 6 and the second variable cu...

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Abstract

The invention provides an automatic zooming method for a laser cutting machine. The automatic zooming method includes steps that (1), a laser device emits laser beams, and the laser beams enter a laser cutting head, are reflected by a first curvature-variable reflection unit and a second curvature-variable reflection unit respectively and then reach the surface of a workpiece under a focusing effect of a lens group; and (2), pressure of cylinders in the first curvature-variable reflection unit and the second curvature-variable reflection unit is regulated, so that deformation curvatures of two reflectors are changed, and the focal length of the laser beams is automatically adjusted. The automatic zooming method has the advantages that automatic zooming without machine halt can be realized, and a foundation is laid for automatic production; materials with uneven thicknesses can be cut by the aid of automatic zooming, and a machining range is expanded; additional cost and errors caused by manual lens changing are eliminated; and the focal length can be adjusted on the premise that sizes of light spots are unchanged owing to different combinations of the curvatures of the two curvature-variable reflectors. The invention further provides an automatic zooming device for the laser cutting machine.

Description

technical field [0001] The invention relates to the field of laser processing, in particular to a method and device for automatic zooming of a laser cutting machine. Background technique [0002] Laser cutting technology is widely used in the processing of metal and non-metal materials, which can greatly reduce processing time, reduce processing costs and improve workpiece quality. As a new type of thermal cutting technology, laser cutting has the advantages of fast cutting speed, high production efficiency, good cutting quality, small heat-affected zone and environmental protection. It has become one of the main sheet metal cutting methods and has been more and more widely used. . With the continuous development of high-power laser technology, the processing energy, efficiency and quality of laser cutting are constantly improving. Existing laser processing equipment changes the focal length by manually replacing the lens, which cannot automatically adjust the focal length...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/38B23K26/04B23K26/36
Inventor 冯爱新卢轶薛伟王瑞延顾永玉
Owner SUZHOU LEAD LASER TECH
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