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Laser ablation processing device and method for surface microstructure of curved-surface workpiece

A surface workpiece, laser ablation technology, used in auxiliary devices, laser welding equipment, metal processing equipment and other directions, can solve the problems of not using laser processing, affecting the quality of ablation, marking depth, etc., to avoid discontinuous processing surfaces , Good controllability, high precision effect

Active Publication Date: 2021-10-15
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in real production and life, a large number of components exist in the form of curved surfaces. If the laser directly processes curved surface objects, the marking depth and width will vary, which seriously affects the ablation quality and does not give full play to the advantages of laser processing.

Method used

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  • Laser ablation processing device and method for surface microstructure of curved-surface workpiece
  • Laser ablation processing device and method for surface microstructure of curved-surface workpiece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In this embodiment, laser ablation processing of a curved micro-texture on a stainless steel ball is taken as an example.

[0033] The laser ablation processing device for micro-texture on the surface of a curved workpiece provided in this embodiment includes: a fixed seat 3, a linear module 8, a laser 7 installed on the linear module, a five-axis linkage mechanical motion platform 4, and a multi-axis motion control Machine 2 and Computer 1.

[0034] The fixing seat 3 is used for fixing the support;

[0035] The linear module 8 and the laser 7 installed on the linear module 8 are fixedly connected to the fixing seat 3; the linear module 8 drives the laser 7 to move up and down along the Z-axis direction;

[0036] The five-axis linkage mechanical movement platform 4 is set on the fixed seat 3, and the five-axis linkage mechanical movement platform 4 is equipped with a clamp 5, which is used to fix the curved surface parts to be processed; the five-axis linkage mechanica...

Embodiment 2

[0049] This embodiment is a processing method of a micro-texture laser ablation processing device on the surface of a curved workpiece provided in Embodiment 1. The specific steps are as follows:

[0050] S10, using the computer 1 to complete the setting of the processing parameters required by the multi-axis motion controller 2 and the laser 7, including parameters such as laser power, laser frequency, and movement speed of each axis of the five-axis linkage mechanical motion platform.

[0051] S20, focusing; adjust the initial position of the sliding table in the linear module 8, drive the laser 7 to move up and down along the Z-axis direction; turn on the laser 7 to emit laser light, so that the focused spot of the laser beam is positioned on the surface of the stainless steel ball 6.

[0052] S30, using CAM software to generate NC codes.

[0053] Among them, the method of using CAM software to generate NC codes is: project the arc length of the two-dimensional figure to be...

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Abstract

The invention discloses a laser ablation processing device and method for a surface microstructure of a curved-surface workpiece, and belongs to the technical field of laser machining. The device comprises a fixed seat; a linear module and a laser mounted on the linear module, wherein the linear module drives the laser to move up and down in the Z-axis direction; a five-axis linkage mechanical motion platform which is arranged on the fixed seat, wherein a clamp is mounted on the five-axis linkage mechanical motion platform; and the five-axis linkage mechanical motion platform drives the to-be-machined curved surface part to be in five-axis linkage, so that pose regulation and control of the machined curved surface part are achieved; a multi-axis motion controller which is arranged on the fixed seat and is electrically connected with the five-axis linkage mechanical motion platform; and a computer which is electrically connected with the multi-axis motion controller, the linear module and the laser. Accurate control over the laser machining position and the curved surface workpiece posture can be achieved through five-axis linkage, it is guaranteed that the laser focus is always located on the surface of the workpiece in the machining process, it is guaranteed that the laser beam is always perpendicular to the workpiece, and the machining quality can be effectively guaranteed.

Description

technical field [0001] The invention belongs to the technical field of laser processing, and in particular relates to a laser ablation processing device and method for micro-texture on the surface of a curved workpiece. Background technique [0002] Microtexture mainly refers to an array of tiny structures that can have a certain geometric size and arrangement, such as pits, grooves, etc., and its size is kept at the micro-nano scale, generally not exceeding 250 μm. Surface microtexture has many excellent functions, such as superhydrophobicity, light trapping, drag and friction reduction, anti-counterfeiting, noise reduction, etc., and is widely used in many fields such as physics, optics, and biology. Especially for curved microstructures, there are many demands. For example, the curved microlens array in the light guide system of optoelectronic products can improve the utilization rate of light energy, and the microstructure surface of the aircraft fuselage can reduce flig...

Claims

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Application Information

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IPC IPC(8): B23K26/352B23K26/08B23K26/70B23K37/04
CPCB23K26/355B23K26/0869B23K26/0861B23K26/702B23K37/0417
Inventor 张俊杰李鹤王晓慧孙涛
Owner HARBIN INST OF TECH
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