Optical experiment device of SLM metal 3D printing equipment

Abstract

The utility model discloses an optical experiment device for SLM metal 3D printing equipment, which belongs to the technical field of 3D printing and comprises a rack, an electric control cabinet, a host and a laser are arranged in the rack, and the electric control cabinet is used for providing a power supply for the laser; the experimental device comprises a rack and further comprises an experimental module arranged on the rack, a detector, a datum plate, a lifting platform and a digital display ruler are arranged in the experimental module, the lifting platform is a shear type lifting mechanism, one end of the lifting platform is connected with a screw, one end of the screw penetrates out of the experimental module, and a knob is connected outside the experimental module and used for manually controlling lifting of the lifting platform. According to the utility model, the model selection matching test of the optical system is completed on the experimental device, the trouble of disassembling various optical elements back and forth directly on the printing equipment is solved, the time is saved, the test efficiency is improved, the test cost is reduced, and the test efficiency is improved. And meanwhile, the optical element can be used in multiple models, and only the matched water cooling seat needs to be replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printing, and in particular relates to an optical experimental device for SLM metal 3D printing equipment. Background Art

[0002] The SLM metal 3D printing device uses a high-energy laser beam to melt the metal alloy powder on the two-dimensional cross-section after layering and slicing the product's three-dimensional model, and then prints out metal parts with complex structures layer by layer from the bottom up. During the design process of the SLM metal 3D printing device, it is necessary to test the spot diameter, beam quality, and power of the selected optical system to complete the optical matching verification and test the SLM metal 3D printing device software. Currently, the verification of the optical system is generally done directly on the device. The disadvantage of this is that it is troublesome to disassemble optical components such as the galvanometer and field mirror back and forth. This utility model SLM metal 3D printing device optical experimental device is designed to solve this problem. Summary of the Invention

[0003] The purpose of the utility model is to provide an optical experimental device for SLM metal 3D printing equipment. By completing the selection and matching test of the optical system on the experimental device, the trouble of directly disassembling various optical components for testing on the printing equipment is solved. It not only saves time but also reduces the probability of damage to the optical components. At the same time, multiple models can be used by simply replacing the matching water cooling seat.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is to provide an optical experimental device for SLM metal 3D printing equipment, comprising a frame, an electric control cabinet, a host and a laser are arranged inside the frame, and the electric control cabinet is used to provide power for the laser; it also includes an experimental cabin arranged on the frame, and a detector, a reference plate, a lifting platform and a digital ruler are arranged in the experimental cabin. The lifting platform is a scissor-type lifting mechanism, one end of which is connected to a screw, and one end of the screw passes through the experimental cabin and is connected to a knob outside the experimental cabin for manually controlling the lifting of the lifting platform. The lifting platform is fixed to the inner bottom of the experimental cabin, the reference plate is installed on the top of the lifting platform, the detector is arranged on the reference plate, and the digital ruler is fixed on the side wall of the experimental cabin for detecting the height of the reference plate; it also includes a lens assembly arranged on the top of the experimental cabin, the lens assembly and the laser are connected by an optical cable, and the lens assembly and the host are connected by a circuit for regulating the working parameters of the lens assembly through the host.

[0005] As a further improvement of the present invention, a water cooling seat is provided between the lens assembly and the experimental chamber to reduce the temperature of the lens assembly.

[0006] As a further improvement of the present invention, a closable door is provided on one side of the experimental cabin.

[0007] As a further improvement of the present invention, a transparent observation window is provided on the cabin door.

[0008] As a further improvement of the present invention, retractable legs are respectively provided at the four corners of the bottom of the frame.

[0009] As a further improvement of the present invention, a plurality of universal wheels are installed at the bottom of the frame to enable the frame to be movable.

[0010] Compared with the existing technology, the beneficial effects of the present invention are: the present invention solves the trouble of directly disassembling various optical components for testing on the printing equipment by completing the selection and matching test of the optical system on the experimental device, which not only saves time but also reduces the probability of damage to the optical components. At the same time, multiple models can be used, and only the matching water cooling seat needs to be replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is the appearance diagram of the optical experimental device of the SLM metal 3D printing equipment of this utility model;

[0012] Figure 2 This is a side sectional view of the optical experimental device of the SLM metal 3D printing equipment of the present invention.

[0013] Explanation of the accompanying numbers: 1 is a frame, 2 is an electric control cabinet, 3 is a main machine, 4 is a laser, 5 is an experimental cabin, 51 is an upper cover, 52 is a bottom plate, 6 is a detector, 7 is a reference plate, 8 is a lifting platform, 9 is a digital ruler, 10 is a knob, 11 is a lens assembly, 12 is a water cooling seat, 13 is a cabin door, 14 is an observation window, 15 is a support leg, and 16 is a universal wheel. DETAILED DESCRIPTION

[0014] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] like Figure 1 and Figure 2As shown, the utility model is an optical experimental device for SLM metal 3D printing equipment, comprising a frame 1, wherein an electric control cabinet 2, a host 3 and a laser 4 are arranged inside the frame 1, and the electric control cabinet 2 is used to provide power for the laser 4; it also includes an experimental cabin 5 arranged on the frame 1, wherein a detector 6, a reference plate 7, a lifting platform 8 and a digital ruler 9 are arranged in the experimental cabin 5, and the lifting platform 8 is a scissor-type lifting mechanism, one end of which is connected to a screw, and one end of the screw passes through the experimental cabin 5, and a knob 10 is connected to the outside of the experimental cabin 5 for manually controlling the The lifting platform 8 is raised and lowered, and the lifting platform 8 is fixed to the inner bottom of the experimental cabin 5. The reference plate 7 is installed on the top of the lifting platform 8, and the detector 6 is provided on the reference plate 7. The digital ruler 9 is fixed on the side wall of the experimental cabin 5, and is used to detect the height of the reference plate 7; it also includes a lens assembly 11 arranged on the top of the experimental cabin 5, the lens assembly 11 and the laser 4 are connected by an optical cable, and the lens assembly 11 and the host 3 are connected by a circuit, which is used to adjust the working parameters of the lens assembly 11 through the host 3.

[0016] Further, such as Figure 1 and Figure 2 As shown, a water cooling seat 12 is provided between the lens assembly 11 and the experimental chamber 5 . The water cooling seat 12 is externally connected to a water chiller to reduce the temperature of the lens assembly 11 through continuous water circulation.

[0017] The installation steps of the above technical solution before the experiment are introduced in conjunction with the accompanying drawings. First, the electric control cabinet 2, the host 3 and the laser 4 are placed in the preset position of the rack 1 and assembled. Then, the bottom plate 52 of the experimental cabin 5 is installed on the top of the rack 1. Then, the lifting platform 8 is installed on the bottom plate 52. The reference plate 7 is installed on the lifting platform 8. The digital scale 9 is pre-installed on the side wall of the upper cover 51 of the experimental cabin 5. Then, the installed upper cover 51 is installed on the bottom plate 52. Next, the lens assembly 11 is installed on the water cooling seat 12. Then, the installed lens assembly 11 and the water cooling seat 12 are installed on the experimental cabin 5. The water cooling seat 12 is externally connected to a water cooler. The lens assembly 11 is connected to the laser 4 and the host 3. The host 3 is externally connected to a display. The detector 6 is placed on the reference plate 7. Then, the height of the reference plate 7 is adjusted and the test is started. It should be noted that the detector 6 in this embodiment is a prior art and can be purchased. When purchasing, it can be found by using the keyword "beam analyzer".

[0018] Further, such as Figure 1As shown, a closable hatch 13 is provided on one side of the experimental cabin 5, one end of the hatch 13 is hinged to the side wall of the experimental cabin 5, and the other end of the hatch 13 and the side wall of the experimental cabin 5 are installed with a gas spring support rod, which can fix the hatch 13 when it is opened at different angles, and is convenient for operators to use. A transparent observation window 14 is provided on the hatch 13, and the observation window 14 can be made of brown glass, which can weaken the brightness of the laser in the experimental cabin 5 to a certain extent during the experiment to prevent damage to the observer's eyesight, but does not hinder the observer from paying attention to the changes in the experimental cabin 5 at all times.

[0019] Further, such as Figure 1 As shown, retractable legs 15 are respectively provided at the four corners of the bottom of the frame 1, and a plurality of universal wheels 16 are installed at the bottom of the frame 1. The universal wheels 16 can make the frame 1 movable. When the frame 1 is moved to a suitable position and needs to be fixed to the ground, the legs 15 can be extended and the universal wheels 16 can be suspended in the air to stabilize the horizontal position of the frame 1.

[0020] In a preferred embodiment, the observation window 14 is made of brown glass. Colorless glass can also be used, but the observer needs to wear protective glasses, so brown glass is more preferred.

[0021] In short, the present invention solves the trouble of directly disassembling various optical components for testing on the printing device by completing the selection and matching test of the optical system on the experimental device. It not only saves time but also reduces the probability of damage to the optical components. At the same time, it can be used in multiple models by simply replacing the matching water cooling seat.

[0022] The above embodiments describe the present invention, but the present invention is not limited to the above disclosed embodiments, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. An optical experimental device for SLM metal 3D printing equipment, comprising a frame (1), characterized in that: The frame (1) is provided with an electric control cabinet (2), a host (3) and a laser (4), wherein the electric control cabinet (2) is used to provide power for the laser (4); and further comprises an experimental cabin (5) provided on the frame (1), wherein the experimental cabin (5) is provided with a detector (6), a reference plate (7), a lifting platform (8) and a digital ruler (9), wherein the lifting platform (8) is a scissor-type lifting mechanism, one end of which is connected to a screw rod, and one end of the screw rod passes through the experimental cabin (5), and a knob (10) is connected to the outside of the experimental cabin (5) for manually controlling the lifting and lowering of the lifting platform (8). ) is fixed to the inner bottom of the experimental chamber (5), the reference plate (7) is installed on the top of the lifting platform (8), the detector (6) is provided on the reference plate (7), and the digital ruler (9) is fixed on the side wall of the experimental chamber (5) for detecting the height of the reference plate (7); it also includes a lens assembly (11) arranged on the top of the experimental chamber (5), the lens assembly (11) and the laser (4) are connected by an optical cable, and the lens assembly (11) and the host (3) are connected by a circuit for regulating the working parameters of the lens assembly (11) by the host (3).

2. The optical experimental device for SLM metal 3D printing equipment according to claim 1, characterized in that: A water cooling seat (12) is provided between the lens assembly (11) and the experimental chamber (5) for reducing the temperature of the lens assembly (11).

3. The optical experimental device for SLM metal 3D printing equipment according to claim 2, characterized in that: A hatch (13) that can be opened and closed is provided on one side of the experimental cabin (5).

4. The optical experimental device for SLM metal 3D printing equipment according to claim 3, characterized in that: The hatch (13) is provided with a transparent observation window (14).

5. The optical experimental device for SLM metal 3D printing equipment according to claim 4, characterized in that: Retractable supporting feet (15) are respectively provided at the four corners of the bottom of the frame (1).

6. The optical experimental device for SLM metal 3D printing equipment according to claim 5, characterized in that: A plurality of universal wheels (16) are installed at the bottom of the frame (1) to enable the frame (1) to be movable.

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