Carbon dioxide laser tube with novel structure

Abstract

The utility model provides a carbon dioxide laser tube with a novel structure, both ends of a gas storage tube are provided with conical positioning parts, a discharge tube is arranged in the gas storage tube, a water cooling tube is coaxially arranged outside the discharge tube, electrodes are arranged at both ends of the discharge tube, and a total reflection mirror and an output mirror are respectively arranged at the end parts of the electrodes at both ends. The two ends of the gas storage tube are subjected to finish machining to form the conical positioning parts, the conical positioning parts serve as the unified machining and mounting reference, the concentricity precision of the gas storage tube and the discharge tube is remarkably improved, the conical structure serves as the positioning reference in tube shell firing, tube opening grinding and lens assembling, and the machining efficiency and the product consistency are greatly improved; when the laser tube is replaced, the conical structure serves as a mounting reference to ensure that light paths of a new tube and an original tube are completely overlapped, and a bracket or a light path reflector does not need to be adjusted; therefore, an equipment user can autonomously complete laser tube replacement, the technical dependence on professionals is reduced, the after-sales service cost of manufacturers is reduced, and meanwhile, the reliability and the maintenance convenience of the laser equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of carbon dioxide laser tubes, and in particular to a novel carbon dioxide laser tube structure. Background Technology

[0002] Current carbon dioxide laser tubes are typically made of borosilicate glass and have a multi-layered tubular structure. The core layer is the discharge tube, the middle layer is the water-cooling tube, and the outermost layer is the gas storage tube and a spiral return gas tube connected to the discharge tube. An output mirror and a total reflection mirror are installed at both ends of the tube, and electrodes are located at both ends of the discharge tube. The total reflection mirror and output mirror of this type of carbon dioxide laser tube are glued to the tube end faces. Before gluing, the tube end faces need to be ground to ensure they are parallel and perpendicular to the central axis of the discharge tube.

[0003] During the laser tube manufacturing process, coaxial inspection tools (such as collimating helium-neon lasers, industrial cameras, or collimators) are used to calibrate the central axis of the laser tube's discharge tube. Using the discharge tube as a reference, the end faces of both ends of the laser tube are ground to ensure parallelism and perpendicularity to the central axis of the discharge tube. The outer gas storage tube of the laser tube is typically made of 50-100 mm diameter high borosilicate glass. According to the current national standard GB / T 40236-2021 "Borosilicate Glass Pipes," its outer diameter tolerance is ±1.0-±2.0 mm, roundness tolerance is ≤1.0-≤2.0 mm, and straightness / % tolerance is ≤0.3-≤0.4 mm. At this point, the concentricity error between the gas storage tube and the discharge tube is ±2 mm. During use, the laser tube needs to be mounted and fixed on two supports. The mounting supports are then adjusted to ensure the discharge tube of the laser tube coincides with the desired optical path. When replacing a laser tube, the concentricity error between the gas storage tube and the discharge tube of each laser tube is ±2 mm. The discharge tube of the newly installed laser tube will no longer coincide with the required optical path. In this case, the mounting bracket of the laser tube and all reflectors within the optical path must be readjusted to ensure alignment. This operation requires specialized knowledge and experience; improper operation can affect the processing efficiency and quality of the laser equipment, and in severe cases, lead to equipment damage or personal injury. As the largest item in after-sales service for laser equipment manufacturers, the need to readjust the optical path after replacing the laser tube is the most expensive after-sales service item and also the most frequently encountered problem by equipment users.

[0004] Therefore, there is an urgent need for a new type of carbon dioxide laser tube that can solve the problem that existing laser tubes lack processing and installation references. Utility Model Content

[0005] The purpose of this invention is to provide a novel carbon dioxide laser tube structure to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a novel carbon dioxide laser tube, comprising:

[0008] A gas storage pipe, wherein both ends of the gas storage pipe are provided with tapered positioning parts;

[0009] A discharge tube is disposed inside the gas storage tube and is coaxially arranged with the conical positioning part;

[0010] A water-cooled tube is coaxially disposed outside the discharge tube, with an inlet and an outlet at each end, both of which penetrate the gas storage tube.

[0011] Electrodes, which are disposed at both ends of the discharge tube;

[0012] A total reflection mirror and an output mirror are respectively disposed at the ends of the electrodes at both ends.

[0013] Preferably, the outer diameter limit deviation, roundness deviation, and straightness deviation of the tapered positioning part are all less than 0.05 mm.

[0014] Preferably, the coaxiality error between the tapered positioning part and the discharge tube is less than 0.05 mm.

[0015] Preferably, the tapered positioning portions at both ends have the same taper.

[0016] Preferably, the two end faces of the discharge tube are parallel to each other and perpendicular to the central axis of the discharge tube.

[0017] Preferably, a return gas pipe is provided outside the discharge tube, and the return gas pipe is connected to the discharge tube.

[0018] Preferably, the return air pipe has a spiral structure.

[0019] Preferably, a tungsten rod is provided on the side of the electrode.

[0020] The present invention achieves the following beneficial technical effects compared to the prior art:

[0021] This invention provides a novel carbon dioxide laser tube structure. Both ends of the gas storage tube are equipped with conical positioning portions. The discharge tube is housed inside the gas storage tube, and the water-cooling tube is coaxially positioned outside the discharge tube. Electrodes are located at both ends of the discharge tube, and a total reflection mirror and an output mirror are respectively positioned at the ends of the electrodes. The conical positioning portions at both ends of the gas storage tube are precision-machined and used as a unified processing and installation benchmark, significantly improving the concentricity accuracy of the gas storage tube and the discharge tube. This conical structure serves as a positioning benchmark during tube shell firing, tube end grinding, and lens assembly, greatly improving processing efficiency and product consistency. When replacing the laser tube, the conical structure, as an installation benchmark, ensures that the new tube's optical path is completely aligned with the original tube, eliminating the need to adjust the support or optical path reflector. Therefore, equipment users can independently replace the laser tube, reducing reliance on professional technicians, reducing after-sales service costs for manufacturers, and simultaneously improving the reliability and ease of maintenance of the laser equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the novel carbon dioxide laser tube structure provided by this utility model. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The purpose of this invention is to provide a novel carbon dioxide laser tube structure to solve the problems existing in the prior art.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1:

[0028] This embodiment provides a novel structure for a carbon dioxide laser tube, such as... Figure 1 As shown, it includes:

[0029] Gas storage pipe 1, with tapered positioning parts 2 at both ends;

[0030] The discharge tube 3 is installed inside the gas storage tube 1 and is coaxially arranged with the conical positioning part 2.

[0031] Water cooling pipe 4 is coaxially arranged outside the discharge pipe 3, with water inlet 5 and water outlet 6 at both ends, and both water inlet 5 and water outlet 6 are arranged through the gas storage pipe 1.

[0032] Electrode 7 is disposed at both ends of discharge tube 3;

[0033] Total reflection mirror 8 and output mirror 9 are respectively disposed at the ends of the two electrodes 7.

[0034] In one embodiment, the outer diameter limit deviation, roundness deviation, and straightness deviation of the tapered positioning part 2 are all less than 0.05 mm.

[0035] In one embodiment, the coaxiality error between the conical positioning part 2 and the discharge tube 3 is less than 0.05 mm.

[0036] In one implementation, the tapered positioning portions 2 at both ends have the same taper.

[0037] In one embodiment, the two end faces of the discharge tube 3 are parallel to each other and perpendicular to the central axis of the discharge tube 3.

[0038] In one embodiment, a return gas pipe 10 is provided on the outside of the discharge tube 3, and the return gas pipe 10 is connected to the discharge tube 3.

[0039] In one implementation, the return air pipe 10 adopts a spiral structure.

[0040] In one embodiment, a tungsten rod 11 is provided on the side of the electrode 7.

[0041] The processing method of this utility model is as follows: Before firing the laser tube shell, the two ends of the gas storage tube are precision machined into a tapered shape to obtain a tapered positioning part. Then, the discharge tube and water cooling tube are assembled and fired into a core tube. Then, using the tapered positioning parts at both ends of the gas storage tube as the installation and positioning reference, the core tube to be fired and installed is positioned with tooling. The core tube and the gas storage tube are assembled and fired to fix it. The connection between the tube ends and the electrodes, as well as the inlet and outlet water ports, are fired. Using the tapered positioning parts at both ends of the gas storage tube as the installation and positioning reference, the tube ends of the laser tube are ground to make the end faces of the two tube ends parallel and perpendicular to the central axis of the discharge tube. In all production stages, the tapered parts at both ends of the gas storage tube are used as the installation reference. The installation of a positioning reference improves production efficiency and product accuracy. With the laser tubes having the same installation reference, the conical positioning part 2 becomes the consistent installation reference for all laser tubes. While ensuring that the optical path remains unchanged, laser tubes can be easily interchanged. When replacing a laser tube, the newly installed laser tube has the same conical positioning part as the original laser tube, eliminating the need to readjust the laser tube mounting bracket and the lenses in the optical path. This reduces the professional knowledge and experience required for this operation, allowing equipment users to easily replace laser tubes themselves without waiting for professional on-site service. This reduces the reliance on the technical expertise of the equipment manufacturer, and also reduces the need for the equipment manufacturer to provide a significant amount of after-sales service.

[0042] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A novel structured carbon dioxide laser tube characterized in that: include: A gas storage pipe, wherein both ends of the gas storage pipe are provided with tapered positioning parts; A discharge tube is disposed inside the gas storage tube and is coaxially arranged with the conical positioning part; A water-cooled tube is coaxially disposed outside the discharge tube, with an inlet and an outlet at each end, both of which penetrate the gas storage tube. Electrodes, which are disposed at both ends of the discharge tube; A total reflection mirror and an output mirror are respectively disposed at the ends of the electrodes at both ends.

2. A novel structured carbon dioxide laser tube as claimed in claim 1, wherein: The outer diameter limit deviation, roundness deviation, and straightness deviation of the tapered positioning part are all less than 0.05 mm.

3. A novel structured carbon dioxide laser tube as claimed in claim 1, wherein: The coaxiality error between the tapered positioning part and the discharge tube is less than 0.05 mm.

4. A novel structured carbon dioxide laser tube as claimed in claim 1, wherein: The tapered positioning parts at both ends have the same taper.

5. A novel structured carbon dioxide laser tube as claimed in claim 1, wherein: The two end faces of the discharge tube are parallel to each other and perpendicular to the central axis of the discharge tube.

6. A novel structured carbon dioxide laser tube as claimed in claim 1, wherein: The discharge tube is provided with a return gas pipe on its exterior, and the return gas pipe is connected to the discharge tube.

7. A novel structured carbon dioxide laser tube as claimed in claim 6, wherein: The return air pipe has a spiral structure.

8. A novel structured carbon dioxide laser tube as claimed in claim 1, wherein: The electrode has a tungsten rod on its side.

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