A high temperature metal 3D printer window mirror structure

Abstract

A high-temperature metal 3D printer window mirror structure, the right side of the support ring is formed with a fourth air inlet pipe, a fifth air inlet pipe and a sixth air inlet pipe, the fourth air inlet pipe, the fifth air inlet pipe and the sixth air inlet pipe are all connected to the right air inlet pipe; a step is formed on the inner wall of the center hole of the support ring, the window mirror is clamped between the step and the pressure plate, the pressure plate is fixed to the support ring by screws, the receiving plate is fixed to the lower end of the support ring by screws and is placed in the box, a ventilation channel is formed between the outer diameter surface of the receiving plate and the support ring, an air groove is formed on the outer diameter surface of the receiving plate, the ventilation channel is connected to the air groove, and the center hole of the receiving plate is opposite to the window mirror; it can cool the window mirror with water while also cooling it with air, ensuring that the window mirror works normally in a high temperature environment. The scanning galvanometer will not fail to work normally due to excessive temperature.

Description

Technical Field

[0001] This invention relates to the field of 3D printer technology, and more specifically to a window mirror structure used in a high-temperature metal powder 3D printer. Background Technology

[0002] The temperature inside the forming cylinder of a high-temperature metal 3D printer exceeds 500℃, making the cooling and protection of the window mirror and scanning electron microscope (SEM) crucial for their proper functioning. Since there are currently no high-temperature metal 3D printers, either domestically or internationally, that exceed 500℃, there is currently no 3D printer window mirror structure that simultaneously cools the window mirror and SEM using both water and air cooling. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a high-temperature metal 3D printer window mirror structure. This structure allows for both water-cooling and air-cooling of the window mirror, ensuring its normal operation in high-temperature environments. The scanning galvanometer will also not malfunction due to excessively high temperatures.

[0004] The technical solution of the present invention is as follows:

[0005] A high-temperature metal 3D printer window mirror structure includes a window mirror and a scanning galvanometer. A support ring is formed on the housing, a support plate is formed on the support ring, and a right air inlet pipe and a left air inlet pipe are formed on the support plate. A first air inlet pipe, a second air inlet pipe, and a third air inlet pipe are formed on the left side of the support ring, and the first, second, and third air inlet pipes are all connected to the left air inlet pipe. A fourth air inlet pipe, a fifth air inlet pipe, and a sixth air inlet pipe are formed on the right side of the support ring, and the fourth, fifth, and sixth air inlet pipes are all connected to the right air inlet pipe.

[0006] The inner wall of the central hole of the support ring is formed with a step. The window mirror is clamped between the step and the pressure plate. The pressure plate is fixed to the support ring with screws. The receiving plate is fixed to the lower end of the support ring with screws and placed in the box. The outer diameter surface of the receiving plate forms a ventilation channel with the support ring. The first, second, third, fourth, fifth and sixth air inlets are all connected to the ventilation channel. The outer diameter surface of the receiving plate is formed with an air groove. The ventilation channel is connected to the air groove. The central hole of the receiving plate is opposite to the window mirror.

[0007] The protective cover is fixed to the support plate by screws and covers the pressure plate. The protective cover has two protective cover strip holes. The pressure plate has an annular water channel, and a second partition is formed in the annular water channel. The second water inlet pipe is connected to the annular water channel on the right side of the second partition, and the second water outlet pipe is connected to the annular water channel on the left side of the second partition. The second water inlet pipe and the second water outlet pipe extend from the two protective cover strip holes respectively.

[0008] A support ring is formed with an annular water channel, and a first partition is formed on the annular water channel. One end of the first water inlet pipe is connected to the annular water channel on the upper part of the first partition and the other end is connected to the first water inlet connector. The first water outlet pipe is connected to the annular water channel on the lower part of the first partition and the other end is connected to the first water outlet connector.

[0009] The galvanometer bracket is fixed to the protective cover with screws, the scanning galvanometer is fixed to the galvanometer bracket, and the laser head of the scanning galvanometer extends into the center hole of the protective cover and the pressure plate and is opposite to the window mirror.

[0010] A lower sealing ring is clamped between the step and the window mirror, and an upper sealing ring is clamped between the pressure plate and the window mirror.

[0011] The scanning galvanometer is fixed to the galvanometer bracket by screws.

[0012] The plurality of air grooves are arranged in a ring array around the center of the pressure plate on the outer diameter surface of the pressure plate.

[0013] The housing is square, and the window mirror, receiving plate, pressure plate, support ring, and laser head of the scanning galvanometer are coaxial.

[0014] Both the first and second water inlet pipes are bent pipes, with one end extending from the support plate.

[0015] The beneficial effects of this invention are as follows:

[0016] It can simultaneously cool the window mirror with water and air, ensuring the window mirror operates normally in high-temperature environments. The scanning galvanometer will also not malfunction due to excessive temperature. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is the front view of the present invention;

[0019] Figure 3 This is a three-dimensional schematic diagram of the box body, support ring, and support plate.

[0020] Figure 4 for Figure 2 Sectional view at point B;

[0021] Figure 5 for Figure 2 Sectional view at point C;

[0022] Figure 6 A three-dimensional diagram illustrating the takeover process;

[0023] Figure 7This is a three-dimensional schematic diagram of the pressure plate;

[0024] Figure 8 This is a cross-sectional view of the pressure plate.

[0025] In the diagram: 1. Box body; 11. Support ring; 12. Support plate; 13. Right air inlet pipe; 14. Left air inlet pipe; 15. First air inlet pipe; 16. Second air inlet pipe; 17. Third air inlet pipe; 18. Fourth air inlet pipe; 19. Fifth air inlet pipe; 110. Sixth air inlet pipe; 111. First water inlet pipe; 112. First water outlet pipe; 113. First partition plate; 114. Annular water channel of support ring; 2. Receiving plate; 21. Air groove; 3. Window mirror; 4. Pressure plate; 41. Second water inlet pipe; 42. Second water outlet pipe; 43. Second partition plate; 44. Annular water channel of pressure plate; 5. Galvanometer bracket; 6. Scanning galvanometer; 7. Protective cover; 8. First water inlet connector; 9. First water outlet connector; 10. Ventilation channel. Detailed Implementation

[0026] Example: See Figures 1 to 8 As shown, a high-temperature metal 3D printer window mirror structure includes a window mirror 3 and a scanning galvanometer 6. A support ring 11 is formed on the housing 1, a support plate 12 is formed on the support ring 11, and a right air inlet pipe 13 and a left air inlet pipe 14 are formed on the support plate 12. A first air inlet pipe 15, a second air inlet pipe 16, and a third air inlet pipe 17 are formed on the left side of the support ring 11, and the first air inlet pipe 15, the second air inlet pipe 16, and the third air inlet pipe 17 are all connected to the left air inlet pipe 14. A fourth air inlet pipe 18, a fifth air inlet pipe 19, and a sixth air inlet pipe 110 are formed on the right side of the support ring 11, and the fourth air inlet pipe 18, the fifth air inlet pipe 19, and the sixth air inlet pipe 110 are all connected to the right air inlet pipe 13.

[0027] A step 11a is formed on the inner wall of the central hole of the support ring 11. The window mirror 3 is clamped between the step 11a and the pressure plate 4. The pressure plate 4 is fixed to the support ring 11 by screws. The receiving plate 2 is fixed to the lower end of the support ring 11 by screws and placed in the housing 1. A ventilation channel 10 is formed between the outer diameter surface of the receiving plate 2 and the support ring 11. The first air inlet pipe 15, the second air inlet pipe 16, the third air inlet pipe 17, the fourth air inlet pipe 18, the fifth air inlet pipe 19 and the sixth air inlet pipe 110 are all connected to the ventilation channel 10. An air groove 21 is formed on the outer diameter surface of the receiving plate 2. The ventilation channel 10 is connected to the air groove 21. The central hole of the receiving plate 2 is opposite to the window mirror 3.

[0028] The protective cover 7 is fixed to the support plate 12 by screws and covers the pressure plate 4. The protective cover 7 has two protective cover strip holes 71. The pressure plate 4 has a pressure plate annular water channel 44. A second partition 43 is formed in the pressure plate annular water channel 44. The second water inlet pipe 41 is connected to the pressure plate annular water channel 44 on the right side of the second partition 43. The second water outlet pipe 42 is connected to the pressure plate annular water channel 44 on the left side of the second partition 43. The second water inlet pipe 41 and the second water outlet pipe 42 extend out from the two protective cover strip holes 71 respectively.

[0029] A support ring 11 has an annular water channel 114 formed on it, and a first partition 113 is formed on the support ring annular water channel 114. One end of the first water inlet pipe 111 is connected to the support ring annular water channel 114 above the first partition 113, and the other end is connected to the first water inlet connector 8. The first water outlet pipe 112 is connected to the support ring annular water channel 114 below the first partition 113, and the other end is connected to the first water outlet connector 9.

[0030] The galvanometer bracket 5 is fixed to the protective cover 7 by screws, and the scanning galvanometer 6 is fixed to the galvanometer bracket 5. The laser head of the scanning galvanometer 6 extends into the center hole of the protective cover 7 and the pressure plate 4 and is opposite to the window mirror 3.

[0031] A lower sealing ring 7b is clamped between the step 11a and the window mirror 3, and an upper sealing ring 7a is clamped between the pressure plate 4 and the window mirror 3.

[0032] The scanning galvanometer 6 is fixed to the galvanometer bracket 5 by screws.

[0033] The plurality of air grooves 21 are arranged in a ring array around the center of the pressure plate 4 on the outer diameter surface of the pressure plate 4.

[0034] The housing 1 is square, and the window mirror 3, receiving plate 2, pressure plate 4, support ring 11 and the laser head of scanning galvanometer 6 are coaxial.

[0035] The first water inlet pipe 111 and the second water inlet pipe 41 are both bends, with one end of each pipe extending from the support plate 12.

[0036] Working principle: When the high-temperature printer is working, the internal temperature of the housing 1 is very high. Water is introduced from the first water inlet connector 8, and after passing through the annular water channel 114 of the support ring, the water flows out from the first water outlet connector 9, cooling the lower sealing ring 7b of this part. Water is introduced from the second water inlet pipe 41, and after passing through the annular water channel 44 of the pressure plate, the water flows out from the second water outlet pipe 42, cooling the upper sealing ring 7a of this part. After the receiving plate 2 is installed, an annular cavity ventilation channel 10 is formed between it and the inner wall of the support ring 11 of the housing 1. Gas is introduced from the right air inlet pipe 13 and the left air inlet pipe 14, and is divided into 3 paths before entering the ventilation channel 10. The gas is guided by the air groove 21 and blown onto the surface of the window mirror 3, forming an air curtain on the surface of the window mirror 3 to protect the surface of the window mirror 3.

[0037] The scanning galvanometer 6 is fixed on the protective cover 7, and the protective cover 7 is fixed on the pressure plate 4. If the temperature of the pressure plate 4 is not high, the scanning galvanometer 6 will not be too hot, and thus the scanning galvanometer will not fail to work properly due to excessive temperature.

Claims

1. A window mirror structure of a high-temperature metal 3D printer, comprising a window mirror (3) and a scanning galvanometer (6), characterized in that: A support ring (11) is formed on the box body (1), a support plate (12) is formed on the support ring (11), and a right air intake pipe (13) and a left air intake pipe (14) are formed on the support plate (12); a first air intake pipe (15), a second air intake pipe (16) and a third air intake pipe (17) are formed on the left side of the support ring (11), and the first air intake pipe (15), the second air intake pipe (16) and the third air intake pipe (17) are all connected to the left air intake pipe (14); a fourth air intake pipe (18), a fifth air intake pipe (19) and a sixth air intake pipe (110) are formed on the right side of the support ring (11), and the fourth air intake pipe (18), the fifth air intake pipe (19) and the sixth air intake pipe (110) are all connected to the right air intake pipe (13); A step (11a) is formed on the inner wall of the center hole of the support ring (11); the window mirror (3) is clamped between the step (11a) and the pressure plate (4); the pressure plate (4) is fixed to the support ring (11) by screws; the receiving plate (2) is fixed to the lower end of the support ring (11) by screws and is placed in the box body (1); an air passage (10) is formed between the outer diameter surface of the receiving plate (2) and the support ring (11); the first air intake pipe (15), the second air intake pipe (16), the third air intake pipe (17), the fourth air intake pipe (18), the fifth air intake pipe (19) and the sixth air intake pipe (110) are all connected to the air passage (10); an air groove (21) is formed on the outer diameter surface of the receiving plate (2); the air passage (10) is connected to the air groove (21); and the center hole of the receiving plate (2) is opposite to the window mirror (3); The protective cover (7) is fixed to the support plate (12) by screws and covers the pressing plate (4); two protective cover strip holes (71) are formed on the protective cover (7); a pressing plate annular water channel (44) is formed on the pressing plate (4); a second partition plate (43) is formed in the pressing plate annular water channel (44); a second water inlet pipe (41) is connected to the pressing plate annular water channel (44) on the right side of the second partition plate (43); and a second water outlet pipe (42) is connected to the pressing plate annular water channel (44) on the left side of the second partition plate (43); the second water inlet pipe (41) and the second water outlet pipe (42) extend out of the two protective cover strip holes (71) respectively; A support ring annular water channel (114) is formed on the support ring (11), a first baffle (113) is formed on the support ring annular water channel (114), one end of the first water inlet pipe (111) is connected to the support ring annular water channel (114) above the first baffle (113), and the other end is connected to the first water inlet joint (8), and the first water outlet pipe (112) is connected to the support ring annular water channel (114) below the first baffle (113), and the other end is connected to the first water outlet joint (9); The galvanometer bracket (5) is fixed to the protective cover (7) by screws, the scanning galvanometer (6) is fixed to the galvanometer bracket (5), and the laser head of the scanning galvanometer (6) extends into the central holes of the protective cover (7) and the pressure plate (4) and is opposite to the window mirror (3); A lower sealing ring (7b) is clamped between the step (11a) and the window mirror (3), and an upper sealing ring (7a) is clamped between the pressure plate (4) and the window mirror (3); A plurality of air grooves (21) are distributed on the outer diameter surface of the pressing plate (4) in an annular array with the center of the pressing plate (4) as the center; The box body (1) is square, and the window mirror (3), the receiving plate (2), the pressure plate (4), the support ring (11) and the laser head of the scanning galvanometer (6) are coaxial.

2. A high temperature metal 3D printer window mirror structure according to claim 1, characterized in that: The scanning galvanometer (6) is fixed to the galvanometer bracket (5) by means of screws.

3. A high temperature metal 3D printer window mirror structure according to claim 1, characterized in that: The first water inlet pipe (111) and the second water inlet pipe (41) are both curved pipes and one end of each of the pipes extends out from the support plate (12).

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