High-precision laser photocuring 3D (three dimensional) printer

Abstract

The invention relates to a high-precision laser photocuring 3D (three dimensional) printer. The high-precision laser photocuring 3D printer comprises a shell and a pedestal. The high-precision laser photocuring 3D printer has the beneficial effects that one end of a high-precision ball screw is connected with a servo motor, the control precision of the servo motor is guaranteed by a rotary encoder at the rear end of a motor shaft and is accurate, and the high-precision laser photocuring 3D printer utilizes the servo motor, so that the printer is stable, and the energy consumption is reduced; as the ball screw has the characteristics of high positioning precision, small friction force, high rigidity and strong load capacity, the molding precision of the printer is high; a circuit control module is connected with a touch screen and a power supply switch respectively through data wires to intelligently control the printer, so that the control precision and processing efficiency are increased; a digital projection device comprises a digital projector horizontally fixed on the upper side of the pedestal, and a plane mirror, so that the structure of the printer is compact; the digital projection device comprises an ultraviolet source and a focusing lens, and the focusing lens is arranged above the ultraviolet source, so that the realizing theory is simple, and the cost performance is high.

Description

technical field [0001] The invention relates to a high-precision laser light-solid 3D printer, in particular to a high-precision laser light-solid 3D printer in the field of electronic imaging equipment. Background technique [0002] Selective curing of photosensitive resin is a process based on the principle of stereolithography, referred to as SLA, which is the earliest rapid prototyping technology. [0003] The principle of SLA molding is as follows: the resin tank is filled with liquid photosensitive resin, which will quickly solidify under the irradiation of ultraviolet laser beams. At the beginning of the molding process, the liftable worktable is at the height of a section layer thickness under the liquid surface. The focused laser beam, under the control of the computer, scans along the liquid surface according to the requirements of the section profile, so that the scanned area The resin cures, resulting in a resin flake of this cross-sectional profile. Then, the ...

AI Technical Summary

Problems solved by technology

[0006] 1. The size of the equipment is huge, only for industrial applications, and it is very expensive, which cannot be afforded by ordinary enterprises;

[0007] 2. The lifespan of the helium-cadmium laser tube is only 3000 hours, and the price is relatively expensive. Since the entire cross-section needs to be scanned and solidified, the molding time is long and the precision is not high, so the production cost is relatively high;

[0008] 3. The support structure of the workpiece needs to be designed to ensure that each structural part produced during the molding process can be positioned reliably. The support structure needs to be removed manually when it is not fully cured, which is easy to damage the molded part and the operation is cumbersome

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