Light path turning head and folding carbon dioxide gas laser

Abstract

The utility model provides a light path turning head which is used for connecting two discharge tubes arranged in parallel, a light path and a discharge light cavity used for communicating the two discharge tubes are arranged in the light path turning head, an inclined mounting surface is arranged at the turning position of the light path turning head, and a circular opening communicated with the light path is formed in the mounting surface. Through the arrangement of the circular opening, a circular reflector can be directly mounted on the mounting surface so as to reflect a generated laser beam to the outlet; and the arrangement of the circular reflecting mirror can be uniformly stressed in a high-temperature and high-pressure environment in the discharge tube, so that the situation that the reflecting mirror deforms asynchronously is avoided, and the problem of laser spot deformation or displacement caused by long-time use is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon dioxide laser device technical field, specifically, it relates to a light path turning head and folding type carbon dioxide gas laser. BACKGROUND

[0002] Through electric shock discharge or optical excitation etc., the electron energy level of CO2 molecule is promoted to a higher excited state, and a certain energy photon is released, which collides with the surrounding gas molecules and is further excited to form a light amplification effect; after multiple reflections, the laser photon is continuously amplified in the resonant cavity of the laser, forming a high-energy and high-purity laser beam.

[0003] At present, the power can only be increased by lengthening the discharge tube length of the laser tube, and multiple discharge tubes are arranged in a straight line, which greatly occupies the length space and is not convenient to use; thus, the folding type carbon dioxide laser emerges as the times require, which is to arrange two discharge tubes along the radial direction and connect them through the light path turning head.

[0004] However, the oblique cut opening is usually in the shape of an ellipse or other long and short axis opening shape, and the mirror is often adapted to the opening shape in order to seal and fit the opening. However, the discharge tube is in a high temperature and high pressure environment during discharge, and the mirror cannot be uniformly stressed under vacuum pressure due to the difference in length and width, resulting in different deformation of the mirror, which further causes the laser spot to deform after long-term use. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims to provide a light path turning head and folding type carbon dioxide gas laser to solve the above technical problems.

[0006] The utility model adopts the following scheme:

[0007] The application provides a light path turning head for connecting two parallel arranged discharge tubes, the light path turning head is provided with a light passage for connecting the discharge light cavities of the two discharge tubes; the turning part of the light path turning head is provided with an inclined mounting surface, the mounting surface is provided with a circular opening communicating with the light passage; and the mounting surface is used for mounting a circular mirror to reflect the generated laser beam to the outlet.

[0008] Further, the mounting surface is in the shape of a circular ring.

[0009] Further, the light path turning head is in the shape of a trapezoid, comprising two first tubes arranged in parallel along a radial direction, and a second tube connected to one end of the two first tubes; the mounting surface is arranged at the connecting turning part of the first tube and the second tube.

[0010] Further, the mounting surface is arranged at an angle of 45 degrees.

[0011] Further, the ratio of the length of the direction in which the first tube is arranged to the length of the direction in which the second tube is arranged is between 1:3 and 1:2.

[0012] Further, the light path turning head is in the shape of a trapezoid, comprising two first tubes arranged in parallel along a radial direction, and a second tube connected to one end of the two first tubes; the mounting surface is arranged at the connecting turning part of the first tube and the second tube.

[0013] Further, the light path turning head is in the shape of a trapezoid, comprising two first tubes arranged in parallel along a radial direction, and a second tube connected to one end of the two first tubes; the mounting surface is arranged at the connecting turning part of the first tube and the second tube.

[0014] The folding type carbon dioxide gas laser comprises a plurality of discharge tubes arranged in parallel, and two of the discharge tubes are connected through the light path turning head.

[0015] By adopting the above technical scheme, the following technical effects can be achieved.

[0016] The utility model provides a kind of light path turning head, for connecting two parallelly arranged discharge tubes, light path is arranged in the light path turning head Passage, for the discharge light cavity of two the discharge tube is connected, and its turning part is provided with the mounting surface of inclination, the circular opening of intercommunication the light passage is arranged on the mounting surface, the circular mirror can be directly installed on mounting surface by the setting of this circular opening to reflect the generated laser beam to export;The setting of circular mirror can be uniformly stressed in the high temperature and high pressure environment inside discharge tube, avoids the situation that mirror deformation is out of sync, to avoid the problem that laser spot is deformed or displaced caused by long time use. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be simply introduced to the drawings needed to be used in the embodiments, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, on the premise of not paying creative labor, other related drawings can also be obtained according to these drawings.

[0018] Figure 1 It is the structure schematic view of a kind of light path turning head of the utility model embodiment;

[0019] Figure 2 It is the front structure schematic view of a kind of light path turning head of the utility model embodiment;

[0020] Figure 3 is Figure 2 a cross-sectional structure schematic diagram of the embodiment of the utility model;

[0021] Figure 4 is the front structure schematic diagram of the mounting surface of the embodiment of the utility model light path turning head;

[0022] Icon: first pipe 1, second pipe 2, mounting surface 3, circular opening 4, photoelectric passage 5. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantage of the embodiment of the utility model more clear, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment is a part of the embodiment of the utility model, instead of all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents the selected embodiment of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the utility model.

[0024] EMBODIMENT

[0025] In conjunction with Figures 1 to 4 shown, the embodiment provides a light path turning head for connecting two parallel arranged discharge tubes, the light path turning head is internally provided with a light passage for communicating the discharge light cavities of the two discharge tubes; the turning part of the light path turning head is provided with an inclined mounting surface, the mounting surface is provided with a circular opening communicating the light passage; the mounting surface is used for mounting a circular reflector to reflect the generated laser beam to the outlet.

[0026] Through the setting of the circular opening, the circular reflector can be directly mounted on the mounting surface to reflect the generated laser beam to the outlet; and the setting of the circular reflector can uniformly bear stress in the high-temperature and high-pressure environment inside the discharge tube, avoiding the out-of-sync deformation of the reflector, thereby avoiding the problems of laser spot deformation or displacement caused by long-time use.

[0027] Specifically, in the embodiment, the light path turning head is generally trapezoidal in shape, comprising two first tubes arranged in parallel along a radial direction, and a second tube connected to one end of the two first tubes, for connecting two discharge tubes arranged in parallel along the radial direction. In the embodiment, the first tube and the second tube are circular tubes, and the mounting surface is provided at the two connecting turning portions of the first tube and the second tube, and the mounting surface is provided with a circular opening communicating with the light path, and the mounting surface is annular. In this way, a circular mirror with the same outer diameter as the mounting surface can be directly sealed and attached to the mounting surface, and the circular mirror can be uniformly stressed in the high-temperature and high-pressure environment inside the discharge tube, so that even if the product deforms after long-term use, the deformation is synchronous in all directions, and the reflection position is not displaced, thereby avoiding the problem of laser spot deformation or displacement caused by long-term use.

[0028] In the embodiment, the light path in the light path turning head is generally U-shaped, and the mounting surface is arranged at 45 degrees to reflect the generated laser beam to the outlet. In the embodiment, the light path turning head is made of ceramic material, which has good insulation and can maintain stable electrical performance under the action of an electric field, and is not prone to electric leakage or breakdown, thereby avoiding the risk of electric shock caused by electric leakage.

[0029] Of course, in other embodiments, the light path turning head can also be provided with a V-shaped light path, and the mounting surface is arranged at the bending portion in the middle of the light path; and the two discharge tubes are arranged in a V shape.

[0030] Preferably, the ratio of the length of the first tube to the length of the second tube is between 1:3 and 1:2. This can effectively avoid the deformation such as warping of the light path turning head during forming, improve the straightness of the light path in the light path turning head, and facilitate the transmission of laser along a straight line.

[0031] The utility model also provides a folding type carbon dioxide gas laser, including a plurality of parallel arranged discharge tube, two discharge tubes are connected through the light path turning head. Through the connection of the light path turning head, the mirror arranged on the light path turning head can be uniformly stressed in the high-temperature and high-pressure environment inside the discharge tube, and the problem of laser spot deformation or displacement caused by long-term use is avoided.

[0032] The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above-mentioned embodiments, and any technical scheme falling within the concept of the utility model belongs to the protection scope of the utility model.

[0033] In the description of the utility model, it is understood that the directions or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are the directions or positional relationships shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0034] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0035] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "above", "upper" and "upper surface" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "under" and "under" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

Claims

1. A light path turning head for connecting two discharge tubes arranged side by side, characterized in that The light path turning head is provided with a light path for connecting the discharge light cavities of the two discharge tubes; the turning part of the light path turning head is provided with an inclined mounting surface, and the mounting surface is provided with a circular opening for connecting the light path; the mounting surface is used for mounting a circular reflector to reflect the generated laser beam to the outlet.

2. The optical path folding head according to claim 1, characterized in that The mounting surface is circular annular.

3. The optical path folding head according to claim 1, characterized in that The light path turning head is trapezoidal in shape, and includes two first tubes arranged in parallel along the radial direction, and a second tube connected to one end of the two first tubes; the mounting surface is arranged at the connection turning part of the first tube and the second tube.

4. The optical path turning head according to claim 3, characterized in that The mounting surface is arranged at an angle of 45 degrees.

5. The optical path turning head according to claim 3, characterized in that The ratio of the length of the direction in which the first tube is located to the length of the direction in which the second tube is located is between 1:3 and 1:

2.

6. The optical path folding head of claim 1, wherein, The light path turning head is provided with a V-shaped light path, and the mounting surface is arranged at the bending part in the middle of the light path.

7. The light path turning head according to any one of claims 1 to 6, characterized in that The light path turning head is made of ceramic.

8. A folded carbon dioxide gas laser comprising a plurality of discharge tubes arranged in parallel, characterized in that, The two discharge tubes are connected by the light path turning head according to any one of claims 1-7.

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