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Disordered texturing method and device for roller surface optical fiber lasers based on transmission type galvanometer

A roll surface, fiber laser technology is applied in the field of roll surface texturing, which can solve the problems of long mechanical structure and the influence of the working frequency of the galvanometer, and achieve the effect of high working frequency, compact mechanical structure, and improved focusing quality.

Inactive Publication Date: 2018-12-21
喆烯新材(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, the size of the galvanometer lens in this patent must be larger than the diameter of the laser spot, and the operating frequency of the galvanometer will be affected when it is deflected at a large angle; at the same time, the offset distance of the textured pit on the surface of the roll is related to the focusing lens, and the mechanical structure is long, so it is necessary to improve it.

Method used

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  • Disordered texturing method and device for roller surface optical fiber lasers based on transmission type galvanometer
  • Disordered texturing method and device for roller surface optical fiber lasers based on transmission type galvanometer
  • Disordered texturing method and device for roller surface optical fiber lasers based on transmission type galvanometer

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Embodiment 1

[0040] Such as figure 1 , the present embodiment provides a device and method for optical fiber laser randomization of the roll surface based on a transmission galvanometer, which includes a mechanical mount for installing the galvanometer assembly 5 and the focusing lens 2, and the galvanometer assembly 5 is an independent The vibrating mirror 3, the vibrating mirror 3 includes a motor and a mirror, and the motor drives the mirror to deflect randomly under the action of the control circuit; the focusing lens 2 converges the incident laser beam 1 through the mirror to the surface of the roller 4, wherein the input laser beam 1 The output end of the fiber laser is also installed on the mechanical mount, the mechanical mount is placed on the pallet of the machine tool, the roll 4 is supported on the machine tool and rotates along its own axis through the machine tool, and the frame of the machine tool moves along the axis of the roll 4; The mirror 3 is placed in the laser beam 1...

Embodiment 2

[0052] Such as figure 2 As shown, on the basis of Embodiment 1, the vibrating mirror assembly 5 is composed of two vibrating mirrors 3 and is also placed between the focusing lens 2 and the roll 4 .

[0053] The included angle between the axes of the two vibrating mirrors 3 is 180°, the reference planes of the optical wedges are parallel, and the slopes are opposite; the phase difference of the signals output by the control circuits of the motors of the two vibrating mirrors is 180 degrees, and when one vibrating mirror is working, the other One remained still.

[0054] The process of offsetting the positions of the textured pits on the surface of the roll 4 by the vibrating mirror assembly 5 is similar to that of Example 1 in the first embodiment. By using two vibrating mirrors 3 to form the vibrating mirror assembly 5, the aberration of the transmissive optical wedge can be compensated and the focusing quality can be improved.

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Abstract

The invention discloses a disordered texturing method and a device for roller surface optical fiber lasers based on a transmission type galvanometer. The method comprises the following steps: placinga galvanometer assembly between a focusing lens and a roller, wherein the lens of the galvanometer is a transmission type optical wedge; a laser beam acting on the surface of the roller after being converged to the lens of the galvanometer assembly through the focusing lens; the laser beam moves in the axial direction of the roller, the motor of the galvanometer assembly driving the lens of the galvanometer assembly to randomly deflect under the action of a control circuit, so that enabling the optical axis of the laser beam to randomly deflect, and forming texturing pits which are randomly distributed in position on the surface of the rotating roller. The laser beam transmits the lens after being converged, so that the geometric dimension of the lens is reduced, and the working frequencyof the galvanometer is high during a large-angle deflection; the axis of the motor of the galvanometer is perpendicular to the laser beam and is at an angle with the vertical direction, so that the two-dimensional deflection of the laser beam in the tangential direction and the axial direction of the roller can be achieved at the same time; the disorder degree of the positions of the texturing pits on the surface of the roller is improved, the aberration of the transmission type optical wedge can be compensated through a combination of two galvanometers, so that the focusing quality is improved.

Description

technical field [0001] The invention relates to the technical field of roller surface roughening, in particular to a method and device for random roughening of the roller surface by optical fiber laser based on a transmissive vibrating mirror. Background technique [0002] At present, the surface roughening technology of rolls has been widely used in the production of cold-rolled strips. Compared with shot-peening texturing technology and EDM texturing technology, laser texturing technology has the advantages of large amount of passing steel, less pollution, good strip deep drawing performance, etc., and has broad market prospects. However, the surface processing characteristics of shot peening and EDM texturing determine that the texturing pits on the surface of the roll are distributed randomly, and the surface of the strip produced is isotropic and has a good matte effect. However, laser texturing is point-like processing. While producing high-hardness texturing pits on ...

Claims

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Application Information

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IPC IPC(8): B23K26/352B23K26/064B23K26/082
CPCB23K26/064B23K26/0648B23K26/082
Inventor 王之桐
Owner 喆烯新材(北京)科技有限公司
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