Totally sealed CO2 high-efficiency laser tube

Abstract

The application discloses a kind of full isolation type CO2 High-efficiency laser tube, including first gas storage pipe, water cooling pipe, first connecting seat, second gas storage pipe, discharge tube, second connecting seat, extension pipe and laser hole, the first gas storage pipe side is provided with second gas storage pipe, the first gas storage pipe and second gas storage pipe are provided with extension pipe, the extension pipe both ends are provided with first connecting seat and second connecting seat, the first connecting seat and second connecting seat center position are all provided with laser hole, the laser hole is all installed with screw sleeve, the screw sleeve inner portion is embedded with first mirror and second mirror respectively;The first gas storage pipe, second gas storage pipe and extension pipe are all provided with water cooling pipe, and water cooling pipe is provided with discharge tube.The length of laser tube can be extended by extension pipe, the power of laser can be improved, and the first mirror and the second mirror can converge laser light, reduce the problem of laser scattering and reduce power.

Description

Technical Field

[0001] This invention relates to the field of laser tube technology, specifically a fully enclosed CO2 high-efficiency laser tube. Background Technology

[0002] A carbon dioxide laser is a gas laser that generates laser radiation using carbon dioxide. A direct current is input into a discharge tube. During discharge, nitrogen molecules in the mixed gas within the tube are excited by electrons. These excited hydrogen molecules then collide with CO2 molecules, transferring their energy to the CO2 molecules. The CO2 molecules then transition from a lower energy level to a higher energy level, resulting in population inversion and the generation of laser light. Therefore, carbon dioxide laser tubes are among the most widely used lasers, finding applications in materials processing, medicine, and environmental measurement.

[0003] Extensive research revealed existing technology: Publication number CN203193110U discloses a carbon dioxide laser tube. This invention effectively reduces the dependence of lens mounting accuracy on tube end grinding accuracy. By adjusting the lens angle, it improves the positional accuracy of the total reflection mirror, output reflection mirror, and discharge tube, thus enhancing the quality of the carbon dioxide laser tube. Increasing the gas storage capacity, using a catalyst, and employing an anode electrode welded with precious metal wire improves the stability of the carbon dioxide laser tube and extends its service life to 10,000 hours. A finely machined cathode electrode is used. Due to better contact with the discharge tube, glass breakage caused by uneven heating is reduced.

[0004] In summary, in practical applications, existing carbon dioxide laser tubes have limitations. The length of the tube determines the laser reflection path; therefore, the longer the tube, the higher the output laser power. However, the length of existing carbon dioxide laser tubes is fixed, resulting in insufficient flexibility in adjusting laser power. Furthermore, the laser reflection within the discharge tube results in low focusing, with the laser beam at the negative terminal representing only a small portion of the total laser output, leading to incomplete and unfocused laser output. Summary of the Invention

[0005] The purpose of this invention is to provide a fully enclosed CO2 high-efficiency laser tube to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fully enclosed CO2 high-efficiency laser tube, comprising a first gas storage tube, a water-cooling tube, a first connecting seat, a second gas storage tube, a discharge tube, a second connecting seat, an extension tube, and a laser hole. The second gas storage tube is provided on one side of the first gas storage tube, and an extension tube is provided between the first gas storage tube and the second gas storage tube. The two ends of the extension tube are respectively provided with a first connecting seat and a second connecting seat. A laser hole is opened at the center of both the first connecting seat and the second connecting seat. A threaded sleeve is installed inside the laser hole, and a first convex lens and a second convex lens are respectively embedded inside the threaded sleeve.

[0007] The first gas storage pipe, the second gas storage pipe, and the extension pipe are all equipped with water-cooling pipes, and the water-cooling pipes are equipped with discharge pipes.

[0008] Preferably, the first gas storage pipe is provided with a positive terminal at the end opposite to the second gas storage pipe, and the second gas storage pipe is provided with a negative terminal at the end opposite to the first gas storage pipe.

[0009] Preferably, a return gas pipe is provided inside one end of the first gas storage pipe, and one end of the return gas pipe is spatially connected to the water cooling pipe and the discharge pipe, and one end of the return gas pipe is spirally distributed on the outer wall of one end of the water cooling pipe.

[0010] Preferably, one end of the water-cooling pipe is provided with a water inlet that penetrates the lower surface of the first gas storage pipe, and the other end of the water-cooling pipe is provided with a water outlet that penetrates the upper surface of the second gas storage pipe.

[0011] Preferably, one end of the discharge tube is provided with a first gas supply pipe that penetrates the water-cooling pipe and the outer wall of the first gas storage pipe, and a second gas supply pipe is connected to the lower surface of the first gas storage pipe.

[0012] Preferably, the first connecting seat and the second connecting seat are provided with a first slot, a second slot and a third slot on both sides, and the inner walls of the first slot, the second slot and the third slot are provided with sealing gaskets.

[0013] Preferably, the first slot, the second slot, and the third slot are respectively adapted to the first gas storage pipe, the water cooling pipe, and the discharge pipe, and the inner wall diameter of the first gas storage pipe is the same as that of the second gas storage pipe and the extension pipe.

[0014] The first gas storage pipe, the second gas storage pipe, the inner wall of the extension pipe and the outer wall of the water cooling pipe, and the water cooling pipe and the discharge pipe are all provided with linings arranged in a circular array.

[0015] Preferably, the outer walls of the first gas storage pipe, the second gas storage pipe, and the extension pipe are all provided with clamps, and bolts arranged in a circular array are inserted between the clamps.

[0016] Preferably, the surfaces of the first connecting seat and the second connecting seat are provided with a first through hole and a second through hole arranged in a circular array, and the first through hole is located between the first gas storage pipe and the water cooling pipe, and the second through hole is located between the water cooling pipe and the discharge pipe.

[0017] Preferably, the inner wall of the laser hole is provided with a thread that matches the screw sleeve, and the curvature of the first convex mirror surface is smaller than that of the second convex mirror surface. The curved sides of the first and second convex mirrors face the second gas storage pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention splits the traditional gas storage tube into a first gas storage tube and a second gas storage tube. The adopted split design allows for the addition of extension tubes of different lengths between the first and second gas storage tubes to extend the length of the discharge tube inside the first and second gas storage tubes. This can flexibly and effectively increase the laser reflection path length, which is beneficial to improving the laser output power. Furthermore, the first and second connecting seats at both ends of the extension tube form an effective seal with the first gas storage tube, the second gas storage tube, the water cooling tube, and the discharge tube, respectively. At the same time, the first and second convex mirrors respectively installed inside the first and second connecting seats can focus the laser reflected from inside the discharge tube, allowing it to be output along the axis of the discharge tube. This can effectively improve the utilization rate of the laser, ensuring that the laser beam is finer and the output power is higher. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0020] Figure 2 This is a cross-sectional view of the extension tube, the first connecting seat, and the second connecting seat of the present invention.

[0021] Figure 3 This is a schematic cross-sectional view of the first connecting seat of the present invention;

[0022] Figure 4 This is a side view of the first connector of the present invention.

[0023] Figure 5 This is a magnified cross-sectional view of the laser aperture structure of the present invention;

[0024] Figure 6 This is a side view of the clamp structure of the present invention.

[0025] In the diagram: 1. Positive terminal; 2. First gas storage pipe; 3. Return gas pipe; 4. Water cooling pipe; 5. First connector; 6. Water outlet; 7. Negative terminal; 8. Second gas storage pipe; 9. Discharge pipe; 10. Second connector; 11. Extension pipe; 12. Bolt; 13. Clamp; 14. First gas supply pipe; 15. Second gas supply pipe; 16. Water inlet; 17. First convex mirror; 18. Second convex mirror; 19. Liner; 20. First slot; 21. Second slot; 22. First through hole; 23. Sealing gasket; 24. Third slot; 25. Second through hole; 26. Laser hole; 27. Screw sleeve. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1 to 6 The present invention provides two embodiments:

[0028] Example 1:

[0029] A fully enclosed CO2 high-efficiency laser tube includes a first gas storage tube 2, a water-cooling tube 4, a first connecting seat 5, a second gas storage tube 8, a discharge tube 9, a second connecting seat 10, an extension tube 11, and a laser aperture 26. The second gas storage tube 8 is provided on one side of the first gas storage tube 2. A positive terminal 1 is provided at the end of the first gas storage tube 2 away from the second gas storage tube 8. A negative terminal 7 is provided at the end of the second gas storage tube 8 away from the first gas storage tube 2. A water-cooling tube 4 is provided inside the first gas storage tube 2, the second gas storage tube 8, and the extension tube 11. A discharge tube 9 is provided inside the water-cooling tube 4. A return gas tube 3 is provided inside one end of the first gas storage tube 2. One end of the return gas tube 3 is spatially connected to the water-cooling tube 4 and the discharge tube 9. The return gas tube 3 is spirally distributed on the outer wall of one end of the water-cooling tube 4.

[0030] One end of the water-cooled pipe 4 is provided with an inlet 16 penetrating the lower surface of the first gas storage pipe 2, and the other end of the water-cooled pipe 4 is provided with an outlet 6 penetrating the upper surface of the second gas storage pipe 8. The inlet 16 injects cooling water into the cavity between the water-cooled pipe 4 and the discharge pipe 9. The cooling water passes over the surface of the discharge pipe 9 and is discharged through the outlet 6, realizing the circulation of cooling water and effectively cooling the discharge pipe 9, which can prevent the problem of cracking due to excessive temperature. One end of the discharge pipe 9 is provided with a first gas supply pipe 14 penetrating the outer wall of the water-cooled pipe 4 and the first gas storage pipe 2, and a second gas supply pipe 15 is connected to the lower surface of the first gas storage pipe 2. A circular array of shims 19 is provided between the inner wall of the first gas storage pipe 2, the second gas storage pipe 8, and the extension pipe 11 and the outer wall of the water-cooled pipe 4, and between the water-cooled pipe 4 and the discharge pipe 9. The shims 19 are used to keep the position of the water-cooled pipe 4 and the discharge pipe 9 stable, ensuring that the water-cooled pipe 4 and the discharge pipe 9 can achieve precise docking.

[0031] An extension pipe 11 is provided between the first gas storage pipe 2 and the second gas storage pipe 8. A first connecting seat 5 and a second connecting seat 10 are respectively provided at both ends of the extension pipe 11. A first slot 20, a second slot 21 and a third slot 24 are provided on both sides of the first connecting seat 5 and the second connecting seat 10. A sealing gasket 23 is provided on the inner wall of the first slot 20, the second slot 21 and the third slot 24. The first slot 20, the second slot 21 and the third slot 24 are respectively adapted to the first gas storage pipe 2, the water cooling pipe 4 and the discharge pipe 9. The inner diameter of the first gas storage pipe 2 is the same as that of the second gas storage pipe 8 and the extension pipe 11. The first gas storage tube 2 and the second gas storage tube 8 adopt a separate design. Extension tubes 11 of different lengths can be added between the first gas storage tube 2 and the second gas storage tube 8 to extend the length of the discharge tube 9 inside the first gas storage tube 2 and the second gas storage tube 8. The first connecting seat 5 and the second connecting seat 10 are respectively fitted with the first gas storage tube 2, the second gas storage tube 8, the water cooling tube 4 and the discharge tube 9 through the first slot 20, the second slot 21 and the third slot 24. This can flexibly and effectively increase the laser reflection path length, which is beneficial to improving the laser output power.

[0032] The outer walls of the first gas storage pipe 2, the second gas storage pipe 8, and the extension pipe 11 are all equipped with clamps 13, and bolts 12 arranged in a circular array are inserted between the clamps 13. After the extension pipe 11 is precisely connected to the first gas storage pipe 2 and the second gas storage pipe 8 through the first connecting seat 5 and the second connecting seat 10 respectively, the clamps 13 can be tightened with the bolts 12 to maintain the connection stability between the extension pipe 11 and the first gas storage pipe 2 and the second gas storage pipe 8.

[0033] Example 2:

[0034] Laser holes 26 are provided at the center of both the first connecting seat 5 and the second connecting seat 10. Screw sleeves 27 are installed inside the laser holes 26, and first convex mirrors 17 and second convex mirrors 18 are respectively embedded inside the screw sleeves 27. In actual application, the operator can flexibly install and remove the first convex mirrors 17 and second convex mirrors 18 through the screw sleeves 27. Furthermore, the surface curvature of the first convex mirrors 17 and second convex mirrors 18 can be adjusted according to the actual use to achieve the best laser focusing effect.

[0035] The surfaces of the first connecting seat 5 and the second connecting seat 10 are both provided with a first through hole 22 and a second through hole 25 arranged in a circular array. The first through hole 22 is located between the first gas storage pipe 2 and the water cooling pipe 4, and the second through hole 25 is located between the water cooling pipe 4 and the discharge pipe 9. The first through hole 22 is used to connect the gas passage between the first gas storage pipe 2, the extension pipe 11, the second gas storage pipe 8 and the water cooling pipe 4. The gas storage space of the outer wall space of the water cooling pipe 4 can be replenished with gas through the second gas replenishment pipe 15. At the same time, the second through hole 25 can connect the space between the discharge pipes 9 for real-time replenishment of carbon dioxide to ensure a good laser generation effect.

[0036] The inner wall of the laser hole 26 is provided with a thread that matches the screw sleeve 27, and the surface curvature of the first convex mirror 17 is smaller than that of the second convex mirror 18. The curved sides of the first convex mirror 17 and the second convex mirror 18 face the second gas storage tube 8, so that the laser deflection direction can pass through the laser output port inside the negative terminal 7. The first convex mirror 17 and the second convex mirror 18 are respectively provided inside the first connecting seat 5 and the second connecting seat 10. The laser reflected from the inside of the discharge tube 9 is collected by the first convex mirror 17 and the second convex mirror 18 and can be output along the axis of the discharge tube 9, which can effectively improve the utilization rate of the laser and ensure that the laser beam is more refined and the output power is higher.

[0037] The first gas storage tube 2 and the second gas storage tube 8 adopt a separate design, and extension tubes 11 of different lengths can be added between the first gas storage tube 2 and the second gas storage tube 8 to extend the length of the discharge tube 9 inside the first gas storage tube 2 and the second gas storage tube 8. The first connecting seat 5 and the second connecting seat 10 are respectively fitted with the first gas storage tube 2, the second gas storage tube 8, the water cooling tube 4 and the discharge tube 9 through the first slot 20, the second slot 21 and the third slot 24, which can flexibly and effectively increase the laser reflection path length, which is beneficial to improving the laser output power. At the same time, the first convex mirror 17 and the second convex mirror 18 respectively set inside the first connecting seat 5 and the second connecting seat 10 can focus the laser reflected from inside the discharge tube 9, and output it along the axis of the discharge tube 9, which can effectively improve the utilization rate of the laser, ensure that the laser beam is more refined and the output power is higher.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fully enclosed CO2 high-efficiency laser tube, comprising a first gas storage tube (2), a water-cooling tube (4), a first connecting seat (5), a second gas storage tube (8), a discharge tube (9), a second connecting seat (10), an extension tube (11), and a laser aperture (26), characterized in that: A second gas storage pipe (8) is provided on one side of the first gas storage pipe (2), and an extension pipe (11) is provided between the first gas storage pipe (2) and the second gas storage pipe (8). A first connecting seat (5) and a second connecting seat (10) are respectively provided at both ends of the extension pipe (11). A laser hole (26) is provided at the center of the first connecting seat (5) and the second connecting seat (10). A screw sleeve (27) is installed inside the laser hole (26). A first convex mirror (17) and a second convex mirror (18) are respectively embedded inside the screw sleeve (27). The first gas storage pipe (2), the second gas storage pipe (8) and the extension pipe (11) are all equipped with water cooling pipes (4), and the water cooling pipes (4) are equipped with discharge pipes (9).

2. The fully enclosed high-efficiency CO2 laser tube according to claim 1, characterized in that: The first gas storage pipe (2) is provided with a positive terminal (1) at the end opposite to the second gas storage pipe (8), and the second gas storage pipe (8) is provided with a negative terminal (7) at the end opposite to the first gas storage pipe (2).

3. The fully enclosed high-efficiency CO2 laser tube according to claim 1, characterized in that: The first gas storage pipe (2) has a return gas pipe (3) inside one end. One end of the return gas pipe (3) is connected to the water cooling pipe (4) and the discharge pipe (9) in space. The return gas pipe (3) is spirally distributed on the outer wall of one end of the water cooling pipe (4).

4. The fully enclosed high-efficiency CO2 laser tube according to claim 1, characterized in that: One end of the water-cooling pipe (4) is provided with a water inlet (16) that penetrates the lower surface of the first gas storage pipe (2), and the other end of the water-cooling pipe (4) is provided with a water outlet (6) that penetrates the upper surface of the second gas storage pipe (8).

5. A fully enclosed CO2 high-efficiency laser tube according to claim 1, characterized in that: One end of the discharge tube (9) is provided with a first gas supply pipe (14) that penetrates the water cooling pipe (4) and the outer wall of the first gas storage pipe (2), and a second gas supply pipe (15) is connected to the lower surface of the first gas storage pipe (2).

6. The fully enclosed high-efficiency CO2 laser tube according to claim 1, characterized in that: The first connecting seat (5) and the second connecting seat (10) are provided with a first slot (20), a second slot (21) and a third slot (24) on both sides of the surface. The inner walls of the first slot (20), the second slot (21) and the third slot (24) are provided with sealing gaskets (23).

7. A fully enclosed CO2 high-efficiency laser tube according to claim 6, characterized in that: The first slot (20), the second slot (21) and the third slot (24) are respectively adapted to the first gas storage pipe (2), the water cooling pipe (4) and the discharge pipe (9). The inner wall diameter of the first gas storage pipe (2) is the same as that of the second gas storage pipe (8) and the extension pipe (11). A liner (19) arranged in a circular array is provided between the inner wall of the first gas storage pipe (2), the second gas storage pipe (8), the extension pipe (11) and the outer wall of the water cooling pipe (4), and between the water cooling pipe (4) and the discharge pipe (9).

8. The fully enclosed high-efficiency CO2 laser tube according to claim 1, characterized in that: The outer walls of the first gas storage pipe (2), the second gas storage pipe (8), and the extension pipe (11) are all provided with clamps (13), and bolts (12) arranged in a circular array are inserted between the clamps (13).

9. A fully enclosed CO2 high-efficiency laser tube according to claim 1, characterized in that: The first connecting seat (5) and the second connecting seat (10) are provided with a first through hole (22) and a second through hole (25) arranged in a circular array. The first through hole (22) is located between the first gas storage pipe (2) and the water cooling pipe (4), and the second through hole (25) is located between the water cooling pipe (4) and the discharge pipe (9).

10. A fully enclosed CO2 high-efficiency laser tube according to claim 1, characterized in that: The inner wall of the laser hole (26) is provided with a thread that matches the screw sleeve (27), and the surface curvature of the first convex mirror (17) is smaller than that of the second convex mirror (18). The curved side of the first convex mirror (17) and the second convex mirror (18) faces the second gas storage pipe (8).

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