Laser polishing system for 3D printed model and using method of laser polishing system

Abstract

The invention discloses a laser polishing system for a 3D printed model and a using method of the laser polishing system. The system involves a main body frame, a laser translation device, a Z-direction displacement assembly, a surface cleaning device, a gas purification device, a control device and a power supply device, wherein the laser translation device, the Z-direction displacement assembly,the surface cleaning device, the gas purification device, the control device and the power supply device are arranged on the main body frame, and a model rotation device is arranged on the Z-direction displacement assembly. According to the using method, uniform polishing and local polishing are carried out on the surface of the 3D printed model through ultraviolet laser beams, and dust and harmful gas generated in the polishing process are purified in real time, so that thermal deformation and mechanical deformation of the 3D printed model are effectively reduced, and fine machining can be achieved.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and in particular relates to a laser polishing system for a 3D printing model and an application method thereof. Background technique [0002] 3D printing is a rapid prototyping technology that builds 3D models based on two-dimensional modeling methods. Due to the influence of layered printing and superimposed molding processes, stepped layers are inevitably formed on the surface of 3D printed models. Printing layer texture makes the appearance of 3D model rough, which has a great influence on the surface accuracy of the model. Using the traditional sandpaper grinding method and soil filling method to process the 3D printing model, the grinding accuracy is difficult to guarantee, and the workload is relatively large. Chinese patent CN209140590U fixes the 3D printing model on a grid plate, then immerses it in a polishing liquid tank for polishing, and uses a drying fan to blast and dry it. C...

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Problems solved by technology

Chinese patent CN209140590U and Chinese patent CN208051704U use chemical methods to polish, and it is difficult to control the relationship between the length of time the 3D model is immersed in the polishing solution and the amount of polishing

Chinese patent CN208035398U uses heating in the heating and polishing chamber to melt the surface of the 3D model to be processed to eliminate the layer pattern of the model to obtain a smoother surface, but this method is likely to cause thermal deformation of the 3D printing model

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