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CN-122007641-A - Split laser carving-based computer case shell processing method and computer case shell

CN122007641ACN 122007641 ACN122007641 ACN 122007641ACN-122007641-A

Abstract

The invention discloses a computer case shell processing method based on split laser etching and a computer case shell, and aims to solve the technical problems of high reject ratio and rapid increase in production cost caused by difficult control of local processing precision in the existing one-step forming laser etching process of an integral computer case. According to the method, a chassis is split into a plurality of independent plates, surface cleaning and paint baking pretreatment are respectively carried out, laser etching process parameters are set and executed for each plate independently, the separated plates are subjected to laser etching, and finally qualified plates are assembled into a complete shell. The computer case shell is formed by processing and assembling at least two independent plates through the method. The invention eliminates the problem of integral scrapping caused by local laser engraving flaws through split processing and independent quality control, improves the yield and reduces the production cost.

Inventors

  • WANG YUFENG

Assignees

  • 广州磐驰电脑设备有限公司

Dates

Publication Date
20260512
Application Date
20260202

Claims (10)

  1. 1. A method for processing a computer case shell based on split laser etching is characterized by comprising the following steps: s1, board pretreatment, namely providing a plurality of independent boards forming a case shell, and respectively carrying out surface cleaning and paint baking treatment on each board; S2, split laser etching, namely respectively fixing the pretreated plates to laser etching equipment, and independently setting and executing laser etching process parameters according to the design patterns of the plates to finish the pattern laser etching of the plates; S3, assembling and forming, namely assembling all the plates subjected to laser carving to form a complete computer case shell.
  2. 2. The method of claim 1, wherein the step of pretreating the sheet material comprises sequentially applying a primer, a color paint and a varnish.
  3. 3. The method of claim 2, wherein the primer has a thickness of 16-20 μm, the paint has a thickness of 10-12 μm, and the varnish has a thickness of 30-40. Mu.m.
  4. 4. The method of claim 1, wherein the step of pretreating the sheet material comprises masking a region of the sheet material which is not required to be baked, the region being preset on the sheet material before the step of baking the sheet material.
  5. 5. The method of claim 1, wherein in the step of laser etching, the parameters of the laser etching process include power, frequency, speed and filling pitch, wherein the power is set to be 36% -40%, the frequency is set to be 30-35kHz, the speed is set to be 300-400mm/s, and the filling pitch is set to be 0.03-0.05mm.
  6. 6. The method of claim 5, wherein the laser etching process parameters are independently adjusted according to the material, thickness and baking finish characteristics of each of the plates.
  7. 7. The method of claim 1, wherein the plate comprises at least two of a left side plate, a right side plate, a front plate, a rear plate, an upper cover and a bottom plate.
  8. 8. The method for processing a computer case according to claim 7, wherein the plate further comprises a glass plate.
  9. 9. The method of claim 1, further comprising the step of inspecting the appearance of each of the laser etched plates to remove a single plate having a laser etching defect before the assembling step.
  10. 10. A computer case housing characterized by being processed and assembled from at least two independent plates according to the method of any one of claims 1 to 9.

Description

Split laser carving-based computer case shell processing method and computer case shell Technical Field The invention relates to the technical field of electronic product production and processing, in particular to a split laser carving-based computer case shell processing method and a computer case shell. Background Along with the increasing demands of diversification and individuation of the appearance designs of computer devices, the surface treatment process of the case shell has become an important means for improving the appearance texture and brand recognition of the product. In the mass production process, how to realize laser etching with high precision and high consistency on a chassis with a complex curved surface and a multi-layout structure, and simultaneously control the reject ratio and reduce the production cost becomes a technical problem to be solved in the field. At present, the common shell laser carving process adopts a mode of one-time laser carving after integral molding. For example, in the chinese patent application publication No. CN111604649a, a laser engraving process for notebook keyboard cases is disclosed, which includes cleaning, polishing, sandblasting, painting, and multi-step laser engraving. Although the surface quality is improved by pretreatment and stepwise laser etching is adopted to give consideration to different areas, the technology still has the core of carrying out the step-by-step laser etching on the assembled or integrally formed shell. The conventional technical scheme depending on integral laser engraving has the remarkable limitation in actual production that the problems of insufficient local engraving depth, blurred edges, damage of a paint layer and the like are easily caused because the laser focusing depth, incidence angle and heat affected zone are difficult to uniformly control when laser engraving is carried out in an integral state due to the complex structure of a chassis and different shapes and curvatures of various layouts. Especially when a certain layout radium carving blemishes, the whole case shell is often scrapped, so that the reject ratio and the cost are greatly improved. In summary, the prior art relies on the process route of laser etching in the whole assembly state, and has the technical defects of poor laser etching adaptability, difficult guarantee of local processing precision and high reject ratio for the case with a complex structure. Disclosure of Invention The invention mainly aims to provide a split laser carving-based computer case shell processing method, which aims to solve the technical problem of high reject ratio in the prior art. In order to achieve the above purpose, the invention provides a method for processing a computer case shell based on split laser carving, which comprises the following steps: s1, board pretreatment, namely providing a plurality of independent boards forming a case shell, and respectively carrying out surface cleaning and paint baking treatment on each board; S2, split laser etching, namely respectively fixing the pretreated plates to laser etching equipment, and independently setting and executing laser etching process parameters according to the design patterns of the plates to finish the pattern laser etching of the plates; S3, assembling and forming, namely assembling all the plates subjected to laser carving to form a complete computer case shell. Further, in the step of pretreating the plate, the baking varnish treatment comprises the steps of sequentially coating a primer, a color paint and a varnish. Further, the thickness of the coating layer of the primer is 16-20 mu m, the thickness of the coating layer of the color paint is 10-12 mu m, and the thickness of the coating layer of the varnish is 30-40 mu m. In the step of preprocessing the plate, before the baking finish processing, masking processing is carried out on the preset area without baking finish on the plate. Further, in the split laser etching step, the laser etching process parameters comprise power, frequency, speed and filling space, wherein the power is set to be 36% -40%, the frequency is set to be 30-35kHz, the speed is set to be 300-400mm/s, and the filling space is set to be 0.03-0.05mm. Further, the laser etching process parameters are independently adjusted according to the material, thickness and baking finish layer characteristics of each plate. Further, the plate comprises at least two of a left side plate, a right side plate, a front plate, a rear plate, an upper cover and a bottom plate. Further, the sheet material also includes a glass sheet. Further, before the assembling and forming step, the method further comprises the step of carrying out appearance detection on each plate after laser carving, and eliminating single plates with laser carving defects. The invention also provides a computer case shell which is formed by processing and assembling at least two independent plates according to the method. Co