Multi-folding carbon dioxide laser

Abstract

The utility model discloses a multi-folding type carbon dioxide laser, which comprises 2n gas storage tubes, 2n water cooling tubes, 2n discharge tubes and 2n gas return tubes, binding posts are arranged at two ends of each gas storage tube, the water cooling tubes are arranged in the gas storage square tubes, the discharge tubes are arranged in the water cooling tubes, and the gas return tubes are sleeved on the outer sides of the water cooling tubes. The 2n gas storage pipes are connected with each other in a 2 * n rectangular array structure. The utility model relates to a multi-folding carbon dioxide laser, which is characterized in that a plurality of glass tubes are arranged in a rectangular array instead of being arranged in parallel, and are fixed by glue to form a tight link structure after being connected with one another, so that a base does not need to be mounted any more; width of the laser is greatly shortened and weight of the laser is reduced so that requirements of installation space of the laser are reduced. When a plurality of square glass tubes are used for direct bonding, the structure of the laser is more compact, the laser is not easy to deform, and the light spot mode of the laser is kept stable.

Description

Technical Field

[0001] This utility model relates to the field of laser technology, and in particular to a multi-folded carbon dioxide laser. Background Technology

[0002] A carbon dioxide laser consists of a gas storage tube containing carbon dioxide and other gases. The two ends of the storage tube serve as mounting points for the laser within the laser machine. The storage tube also acts as a mounting frame for the reflecting and output mirrors. In a carbon dioxide laser, when a high voltage is applied to the electrodes, a glow discharge is generated in the discharge tube. This glow discharge is reflected by the resonant cavity formed by the reflecting mirror, the discharge tube, and the output mirror, forming a laser beam that exits from the output mirror. It has found wide applications in mechanical, military, medical, and chemical industries.

[0003] Currently, the gas storage tubes of lasers are all straight tubes of the same diameter. In order to increase the bending strength of the gas storage tube, the diameter of the gas storage tube is usually increased without increasing the length of the gas storage tube. After adopting this method, the bending strength of the gas storage tube is increased, the alignment accuracy of the reflecting mirror and the output mirror is improved, the laser beam intensity is increased, and the amount of carbon dioxide gas stored is also increased. This ensures that the effective attenuation of carbon dioxide gas in the gas storage tube is reduced, so that the output power of the carbon dioxide laser is stable and the lifespan is greatly improved, thus significantly extending the service life of the laser.

[0004] However, due to the increased diameter of the gas storage tube, the diameter of the mounting end of the carbon dioxide laser tube also increases, ultimately requiring the size of the mounting base for the carbon dioxide laser in the laser machine to be refitted with the increased diameter of the gas storage tube. Furthermore, existing high-power multi-mirror folded cavity lasers generally use multiple glass tubes arranged in parallel. This presents the following problems: the production process involves connecting and sealing the tubes with elbows at both ends; the increased width after multiple parallel arrangements places greater demands on the installation space; the need for adhesive bases for fixation increases the weight of the adhesive bases; and the instability of the optical path can easily affect the beam pattern, which is detrimental to the stable operation of the laser mounting beam. Utility Model Content

[0005] The technical problem to be solved by this invention is to overcome the defects of the prior art and provide a multi-folded carbon dioxide laser.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] This utility model discloses a multi-folded carbon dioxide laser, comprising a gas storage tube, a water-cooling tube, a discharge tube, and a return gas tube. Both ends of the gas storage tube are provided with terminals. The water-cooling tube is located inside the gas storage tube. The discharge tube is located inside the water-cooling tube, and its positive and negative terminals are electrically connected to the corresponding terminals via wires. The return gas tube is sleeved on the outside of the water-cooling tube, close to the positive terminal of the discharge tube, with one end connected to the positive terminal of the discharge tube and the other end connected to the gas storage tube. The number of gas storage tubes is 2n, and the 2n gas storage tubes are interconnected in a 2*n rectangular array structure.

[0008] In a preferred embodiment of this utility model, n is an integer greater than or equal to 1, including a light outlet, a tail mirror, and 2n-1 connecting units. The positive ends of the 2n gas storage tubes are connected in pairs through the n connecting units. The light outlet is located at the negative end of the outermost gas storage tube in the rectangular array structure. The tail mirror is located at the negative end of the gas storage tube adjacent to the light outlet. The n-1 connecting units connect the negative ends of the other gas storage tubes in pairs.

[0009] As a preferred embodiment of this utility model, each of the gas storage pipes has an inlet pipe and an outlet pipe respectively provided at both ends of the outward-facing side surface, and the inlet pipe and the outlet pipe are respectively connected to the inlet end and the outlet end of the water-cooling pipe inside the gas storage pipe.

[0010] As a preferred technical solution of this utility model, when n=2, the four gas storage pipes are interconnected in a grid-like structure.

[0011] As a preferred embodiment of this utility model, the gas storage tube is a square tube made of glass, and each gas storage tube is connected to the other with glue.

[0012] As a preferred embodiment of this utility model, the connecting unit includes a U-shaped tube, the two interfaces of which are respectively connected to the ends of the two gas storage tubes, and a total reflection mirror is provided at each bend of the U-shaped tube.

[0013] As a preferred embodiment of this utility model, each of the U-shaped tubes is fitted with a cover on its outer side, and the cover covers the corresponding U-shaped tube and the total reflection lens.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The structure in this application abandons the parallel arrangement of multiple glass tubes and adopts a rectangular array arrangement. They are fixed together with glue to form a tightly linked structure, which eliminates the need for a base, greatly shortens the width of the laser and reduces its weight, thereby reducing the laser installation space requirements.

[0016] When multiple square glass tubes are directly bonded together, the structure of the laser becomes more compact, less prone to deformation, and the laser spot pattern remains stable. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of another embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of another embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of another embodiment of the present utility model;

[0022] Figure 5 These are two-end views of one embodiment of this utility model;

[0023] Figure 6 This is a view of one end of one embodiment of the present utility model;

[0024] Figure 7 This is a cross-sectional structural diagram of the present invention;

[0025] In the diagram: 100, gas storage pipe; 110, terminal block; 200, water cooling pipe; 210, water inlet pipe; 220, water outlet pipe; 300, discharge pipe; 400, gas return pipe; 500, light outlet; 600, tail mirror; 700, connecting unit; 710, U-shaped tube; 720, total reflection mirror; 730, cover. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] In the attached diagram, all identical reference numerals refer to the same components.

[0028] like Figure 7 As shown, this utility model provides a multi-folded carbon dioxide laser, including a gas storage tube 100, a water cooling tube 200, a discharge tube 300, and a return gas tube 400. Both ends of the gas storage tube 100 are provided with terminals 110. The water cooling tube 200 is located inside the gas storage tube, and the discharge tube 300 is located inside the water cooling tube 200. The positive and negative terminals at both ends of the discharge tube 300 are electrically connected to the corresponding terminals 110 through wires. The return gas tube 400 is sleeved on the outside of the water cooling tube 200 and close to the positive terminal of the discharge tube 300. One end of the return gas tube 400 is connected to the positive terminal of the discharge tube 300, and the other end is connected to the gas storage tube 100. There are 2n gas storage tubes 100, and the 2n gas storage tubes 100 are interconnected in a 2*n rectangular array structure.

[0029] In this embodiment, the main structure of a single laser (without folding) is composed of a gas storage tube 100, a water cooling tube 200, a discharge tube 300, and a return gas tube 400. The discharge tube 300 has a positive resonant cavity and a negative resonant cavity at its two ends, respectively. The positive resonant cavity and the negative resonant cavity are electrically connected to the positive terminal 110 and the negative terminal 110 at both ends of the gas storage tube 100 through wires, respectively. The positive terminal 110 and the negative terminal 110 are correctly connected to the high voltage required to excite the laser.

[0030] The 2n single lasers mentioned above are connected together in a 2*n rectangular array and interconnected. Specifically, the sidewalls of the gas storage tube 100 of each laser are connected together to form a multi-folded laser.

[0031] like Figure 1-6 Furthermore, n is an integer greater than or equal to 1, including a light-emitting port 500, a tail mirror 600, and 2n-1 connecting units 700. The positive ends of the 2n gas storage tubes 100 are connected in pairs through the n connecting units 700. The light-emitting port 500 is located at the negative end of the outermost gas storage tube 100 in the rectangular array structure. The tail mirror 600 is located at the negative end of the gas storage tube 100 adjacent to the light-emitting port 500. The negative ends of the other gas storage tubes 100 are connected in pairs through the n-1 connecting units 700.

[0032] In this embodiment, the light output port 500 is used to output laser light. The light output port 500 and the tail mirror 600 are located at the negative ends of two adjacent gas storage tubes 100 (close to the negative resonant cavity end of the discharge tube 300), and an uninterrupted path can be formed between the tail mirror 600 and the light output port 500. That is, the laser light is emitted from the gas storage tube 100 where the tail mirror 600 is located, passes through other gas storage tubes 100, and finally exits from the light output port 500.

[0033] like Figure 1-6Furthermore, each gas storage pipe 100 has an inlet pipe 210 and an outlet pipe 220 respectively installed at both ends of its outward-facing surface. The inlet pipe 210 and the outlet pipe 220 are respectively connected to the inlet end and the outlet end of the water-cooling pipe 200 inside the gas storage pipe 100.

[0034] In this embodiment, the inlet pipe 210 and the outlet pipe 220 are connected to the circulating water pump through pipelines, and the discharge tube 300 is cooled by the circulating water flow;

[0035] The inlet pipe 210 and the outlet pipe 220 are located on the outer wall of the gas storage pipe 100 away from the adjacent gas storage pipe. The inlet pipe 210 is located at the negative end of the gas storage pipe 100, and the outlet pipe 220 is located at the positive end of the gas storage pipe 100. The inlet pipe 210 and the outlet pipe 220 are not on the same plane, that is, the inlet pipe 210 and the outlet pipe 220 have a height difference.

[0036] like Figure 4-6 Furthermore, when n=2, the four gas storage pipes 100 are interconnected in a grid-like structure.

[0037] In this embodiment, when n=2, the laser with 4 gas storage pipes 100 and 3 connecting units 700 has a grid-shaped structure, which shortens the width required to install the laser.

[0038] When the laser has four gas storage tubes 100, the positive ends of the gas storage tubes 100 can be connected to two adjacent gas storage tubes 100 through the connecting unit 700, that is, the two connecting units 700 are arranged in parallel; the positive ends of the gas storage tubes 100 can also be connected to two opposite gas storage tubes 100 through the connecting unit 700, that is, the two connecting units 700 are arranged crosswise. Different installation methods of the connecting units 700 can be selected according to the specific needs of the laser.

[0039] When n=3, it has 6 gas storage pipes 100 and 5 connecting units 700;

[0040] When n=4, it has 8 gas storage pipes 100 and 7 connecting units 700.

[0041] like Figure 1-6 Furthermore, the gas storage tube 100 is a square tube made of glass, and each gas storage tube 100 is connected with glue.

[0042] In this embodiment, when the gas storage pipe 100 is a round glass tube, the 2n gas storage pipes 100 are fixedly connected by a connecting frame that is compatible with the pipe diameter of the gas storage pipe 100.

[0043] When the gas storage tube 100 is a square glass tube, the 2n gas storage tubes 100 are fixedly connected by glue. This makes the structure between the gas storage tubes 100 more compact, thereby reducing the space required to install the laser and eliminating the need for a connecting frame. This can reduce the weight of the laser and also allow for the installation of a larger volume gas storage tube 100 in the same space, thereby improving the performance of the laser.

[0044] like Figure 1-6 Furthermore, the communication unit 700 includes a U-shaped tube 710, the two interfaces of which are respectively connected to the ends of the two gas storage tubes 100, and each bend of the U-shaped tube 710 is provided with a total reflection mirror 720.

[0045] In this embodiment, the U-shaped tube 710, together with two total reflection mirrors 720 of the prior art set at its bend, serves to connect the optical path between the two gas storage tubes 100.

[0046] The laser generated by the multi-folded carbon dioxide laser is reflected by the total reflection mirror 720 in the connecting unit 700 and finally emitted from the light outlet 500.

[0047] like Figure 6 Furthermore, each U-shaped tube 710 is fitted with a cover 730 on its outer side, and the cover 730 covers the corresponding U-shaped tube 710 and total reflection mirror 720.

[0048] In this embodiment, the cover 730 serves to protect the U-shaped tube 710 and the total reflection mirror 720.

[0049] This utility model relates to a multi-folded carbon dioxide laser. The structure of this application abandons the parallel arrangement of multiple glass tubes and adopts a rectangular array arrangement. They are fixed together with glue to form a tightly linked structure, eliminating the need for a mounting base. This greatly shortens the width and weight of the laser, thereby reducing the installation space requirements. When multiple square glass tubes are directly bonded together, the structure of the laser is more compact and less prone to deformation, thus maintaining a stable laser spot pattern.

[0050] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-folded carbon dioxide laser, comprising a gas storage tube (100), a water-cooled tube (200), a discharge tube (300) and a gas return tube (400), both ends of the gas storage tube (100) are provided with terminals (110), the water-cooled tube (200) is arranged in the gas storage tube, the discharge tube (300) is arranged in the water-cooled tube (200), and the positive and negative electrodes at both ends of the discharge tube are respectively electrically connected to the corresponding terminals (110) through wires, the gas return tube (400) is sleeved outside the water-cooled tube (200) and close to the positive electrode end of the discharge tube (300), and one end of the gas return tube is in communication with the positive electrode end of the discharge tube (300) and the other end is in communication with the gas storage tube (100), characterized in that, The number of gas storage pipes (100) is 2n, and the 2n gas storage pipes (100) are interconnected in a 2*n rectangular array structure.

2. A multiple folded carbon dioxide laser as claimed in claim 1, wherein, n is an integer greater than or equal to 1, including a light outlet (500), a tail mirror (600), and 2n-1 connecting units (700). The positive ends of the 2n gas storage tubes (100) are connected in pairs through the n connecting units (700). The light outlet (500) is located at the negative end of the outermost gas storage tube (100) in the rectangular array structure. The tail mirror (600) is located at the negative end of the gas storage tube (100) adjacent to the light outlet (500). The n-1 connecting units (700) connect the negative ends of the other gas storage tubes (100) in pairs.

3. A multi-folded carbon dioxide laser according to claim 2, characterized in that, Each of the gas storage pipes (100) has an inlet pipe (210) and an outlet pipe (220) respectively on its outward-facing side surface. The inlet pipe (210) and the outlet pipe (220) are respectively connected to the inlet end and the outlet end of the water-cooling pipe (200) inside the gas storage pipe (100).

4. A multi-folded carbon dioxide laser according to claim 2, characterized in that, When n=2, the four gas storage pipes (100) are interconnected in a grid-like structure.

5. A multi-folded carbon dioxide laser according to any one of claims 2-4, characterized in that, The gas storage tube (100) is a square tube made of glass, and each gas storage tube (100) is connected to the other with glue.

6. A multi-folded carbon dioxide laser according to claim 5, characterized in that, The connecting unit (700) includes a U-shaped tube (710), the two ports of which are respectively connected to the ends of the two gas storage tubes (100), and each bend of the U-shaped tube (710) is provided with a total reflection mirror (720).

7. A multi-folded carbon dioxide laser according to claim 6, characterized in that, Each of the U-shaped tubes (710) is fitted with a cover (730) on its outer side, the cover (730) covering the corresponding U-shaped tube (710) and the total reflection lens (720).

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