Replaceable diaphragm applied to medium-power laser

Abstract

The utility model relates to the technical field of laser diaphragms, in particular to a replaceable diaphragm applied to a medium-power laser, which comprises a diaphragm sheet and a fixing device. A diaphragm seat is arranged in the fixing device, a light hole is formed in the diaphragm seat, one end of the fixing device is connected with the laser outlet, and the other end of the fixing device is connected with the diaphragm piece; the diaphragm piece is round, a through hole is formed in the center of the diaphragm piece, a circular-truncated-cone-shaped groove concentric with the through hole is further formed in the diaphragm piece, a rotating groove on the same side as the circular-truncated-cone-shaped groove is further formed in the diaphragm piece, a first connecting thread is arranged on the diaphragm piece in the axial direction, and the first connecting thread is connected with a first connecting inner thread in the fixing device in a matched mode. According to the structural design, the diaphragm sheet is simple and rapid to replace, a professional tool is not needed, and time and labor cost are saved; the overall structural design is simple, the number of parts is small, the manufacturing and maintenance cost is reduced, and meanwhile the fault occurrence probability is reduced.

Description

Technical Field

[0001] This utility model relates to the field of laser aperture technology, specifically to a replaceable aperture for use in medium-power lasers. Background Technology

[0002] In optical systems, apertures play a crucial role in controlling the propagation path of light, regulating luminous flux, and altering the shape of the light spot. Most existing apertures have limitations. For example, the aperture and shape of traditional fixed apertures cannot be changed, making it difficult to adapt to the diverse light spot requirements of different products. While some adjustable apertures can change the aperture size within a certain range, their adjustment structures are complex and prone to malfunction. Furthermore, some replaceable aperture designs are cumbersome to replace, requiring specialized tools and time, thus hindering work efficiency. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing a replaceable aperture for medium-power lasers.

[0004] A replaceable aperture for use in a medium-power laser, comprising an aperture plate and a fixing device;

[0005] The fixing device is equipped with an aperture seat, which has a light-transmitting hole. One end of the fixing device is connected to the laser output port, and the other end of the fixing device is connected to the aperture plate.

[0006] The aperture is circular in shape, with a light-passing hole at its center. The aperture also has a frustum-shaped groove concentric with the light-passing hole, and a rotating groove on the same side as the frustum-shaped groove. The aperture has a first connecting thread along its axial direction, which engages with a first internal connecting thread inside the fixing device.

[0007] Furthermore, the end of the fixing device connected to the laser output port is provided with a second internal thread, and the laser output port is threadedly connected to the second internal thread.

[0008] Furthermore, the through-hole shape of the aperture is circular, square, triangular, or elliptical.

[0009] Furthermore, the outer surface of the fixing device is blackened.

[0010] Furthermore, the specifications of the first and second connecting internal threads are different.

[0011] Furthermore, the rotating groove is specifically a straight groove, a cross groove, or a hexagonal groove.

[0012] Furthermore, the height and length of the frustum-shaped groove are less than the height of the aperture.

[0013] Furthermore, the outer diameter of the frustum-shaped groove is larger than the inner diameter of the frustum-shaped groove, the outer diameter of the frustum-shaped groove is much smaller than the diameter of the aperture, and the inner diameter of the frustum-shaped groove is the same as the diameter of the through hole.

[0014] This application designs various aperture plates of different specifications to meet the diverse needs of different optical experiments and applications for light spots, greatly improving the applicability of the aperture plates. The structural design of this application makes the replacement of the aperture plates simple and quick, requiring no special tools, saving time and labor costs. The overall structural design of this application is simple, with fewer parts, reducing manufacturing and maintenance costs, and also reducing the probability of failure. The mounting method and size design of the fixing device in this application can be adapted to various medium-power lasers, showing good versatility. The aperture plates are made of high-strength aluminum alloy with a blackened surface treatment, ensuring low light loss and high light transmittance when light passes through, improving the imaging quality and working efficiency of the optical system. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of an aperture plate;

[0018] Figure 3 This is a schematic diagram of the fixing device;

[0019] Figure 4 This is a sectional view of the fixing device;

[0020] Figure 5 This is a schematic diagram of the principle of light passing through the aperture in this application;

[0021] Figure 6 A schematic diagram of light passing through an aperture designed using conventional methods.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Aperture; 1.1-Through hole; 1.2-Frustoconical groove;

[0024] 1.3 - Rotary groove; 1.4 - First connecting thread; 2 - Fixing device;

[0025] 2.1--Aperture seat; 2.2--Light transmission hole; 2.3--First connecting internal thread;

[0026] 2.4 - Second connecting internal thread. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] Please see Figures 1 to 4 This utility model provides a replaceable aperture for medium-power lasers, which can conveniently and quickly replace aperture plates 1 with different apertures and specifications to meet diverse spot shapes and application requirements. Specifically, it includes aperture plates 1 and fixing devices 2.

[0032] The fixing device 2 is provided with an aperture seat 2.1. The aperture seat 2.1 is made of high-strength aluminum alloy, which has good mechanical properties and corrosion resistance. The aperture seat 2.1 is disc-shaped and is provided with a light-transmitting hole 2.2. One end of the fixing device 2 is connected to the laser light output port 3, and the other end of the fixing device 2 is connected to the aperture plate 1.

[0033] The aperture 1 is circular in shape, made of high-strength aluminum alloy, and has a blackened surface. A through-hole 1.1 for light transmission is located at its center. The aperture 1 also has a frustum-shaped groove 1.2 concentric with the through-hole. The rotating groove 1.3 is specifically a straight groove, a cross groove, or a hexagonal groove. Furthermore, the aperture 1 also has a rotating groove 1.3 on the same side as the frustum-shaped groove 1.2. The cross-section of the frustum-shaped groove 1.2 is approximately triangular, and the outer diameter of the frustum-shaped groove 1.2 is larger than its inner diameter. The outer diameter of the frustum-shaped groove 1.2 is much smaller than the diameter of the aperture 1, while the inner diameter of the frustum-shaped groove 1.2 is the same as the diameter of the through hole 1.1. By setting this frustum-shaped groove 1.2, the aperture path of the aperture 1 is shortened. Simultaneously, the fact that the inner diameter of the frustum-shaped groove 1.2 is the same as the diameter of the through hole 1.1 allows for a seamless connection between the frustum-shaped groove 1.2 and the through hole 1.1, shortening the light path and preventing light diffraction. This ensures lower light loss and higher light transmittance. The specific principle is as follows: Figure 5 As shown; if designed according to conventional thinking, the following would occur. Figure 6 In the case of the above, the light path is long and diffraction will occur, which will eventually form an unstable diffracted beam; the design of the frustum-shaped groove 1.2 in this application can satisfy any of the forms of the rotating groove 1.3 mentioned above.

[0034] The aperture 1 is provided with a first connecting thread 1.4 on its axial direction. The first connecting thread 1.4 is engaged with the first connecting internal thread 2.3 inside the fixing device 2 to achieve precise positioning of the aperture 1 on the fixing device 2.

[0035] The fixing device 2 is provided with a second internal thread 2.4 at one end connected to the laser output port 3. The laser output port 3 is threadedly connected to the second internal thread 2.4, thereby realizing the connection between the fixing device 2 and the laser output port 3.

[0036] The fixing device 2 is made of high-strength aluminum alloy, which has good mechanical properties and corrosion resistance. The fixing device 2 and the aperture seat 2.1 are designed as an integral unit, which reduces the number of mechanical installations and thus improves optical accuracy. The outer surface of the fixing device 2 is blackened, and its size is consistent with the size of the laser output end. The difference in appearance color from the laser makes it easy to distinguish from laser accessories.

[0037] The aperture plate 1 is designed in various specifications. Specifically, the shape of the through hole 1.1 on the aperture plate 1 can be designed as a circle, square, triangle or ellipse or other required shapes. At the same time, the diameter of the through hole 1.1 can also be designed according to actual needs.

[0038] The first connecting internal thread 2.3 and the second connecting internal thread 2.4 have different specifications, and the height and length of the frustum-shaped groove 1.2 are less than the height of the aperture 1.

[0039] When it is necessary to replace the aperture 1, first use a tool to remove the original aperture 1. Then, select an aperture 1 with a suitable aperture and shape according to the requirements. Align the first connecting thread 1.4 of the aperture 1 with the first connecting internal thread 2.3 inside the fixing device 2. Then, use a tool to screw the aperture 1 along the inner wall of the fixing device 2 until the aperture 1 is tightly attached to the aperture seat 2.1. The replacement of the aperture is completed. When the optical system is working, the light passes through the aperture 1 in the center inside the fixing device 2. The aperture 1 restricts and adjusts the light according to its own aperture and shape to meet different optical requirements.

[0040] The replaceable aperture in this application can meet various optical experimental requirements by replacing aperture plates 1 of different shapes and sizes. When an optical experimental project requires a triangular or square light spot shape, the corresponding aperture plate 1 can be installed on the aperture seat 2.1 in the fixing device 2 to meet the experimental requirements. When replacement is required, the above steps are repeated.

[0041] In addition, the replaceable aperture described in this application can be installed near the laser output port of the laser processing equipment. The appropriate aperture and shape of the aperture 1 can be selected based on the type of material being processed and the processing requirements. For example, when cutting thin metal sheets, a circular aperture 1 with a larger aperture is selected to ensure sufficient laser energy passes through and improve cutting efficiency. When performing precision engraving, a smaller aperture 1 is selected to improve laser focusing accuracy. By easily and quickly replacing the aperture 1, the laser processing equipment can adapt to various processing tasks, improving the equipment's versatility and processing efficiency.

[0042] This application designs various aperture plates 1 with different specifications to meet the diverse needs of different optical experiments and application scenarios for light spots, greatly improving the applicability of the aperture plates. The structural design of this application makes the replacement of the aperture plates 1 simple and quick, without the need for professional tools, saving time and labor costs. The overall structural design of this application is simple, with fewer parts, reducing manufacturing and maintenance costs, and reducing the probability of failure. The mounting method and size design of the fixing device 2 in this application can be adapted to various medium-power lasers, and has good versatility. The aperture plate 1 is made of high-strength aluminum alloy material, and the surface is blackened to ensure low light loss and high light transmittance when light passes through, improving the imaging quality and working efficiency of the optical system.

[0043] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A replaceable aperture for use in a medium-power laser, characterized in that, It includes an aperture plate (1) and a fixing device (2); The fixing device (2) is provided with an aperture seat (2.1), and the aperture seat (2.1) is provided with a light-transmitting hole (2.2). One end of the fixing device (2) is connected to the laser light outlet (3), and the other end of the fixing device (2) is connected to the aperture plate (1). The aperture (1) is circular in shape, with a through hole (1.1) for light transmission at its center. The aperture (1) also has a frustum-shaped groove (1.2) concentric with the through hole, and a rotating groove (1.3) on the same side as the frustum-shaped groove (1.2). The aperture (1) has a first connecting thread (1.4) on its axial direction, which is connected to the first internal connecting thread (2.3) inside the fixing device (2).

2. The replaceable aperture for a medium-power laser according to claim 1, characterized in that, The fixing device (2) is provided with a second internal thread (2.4) at one end connected to the laser output port (3), and the laser output port (3) is threadedly connected to the second internal thread (2.4).

3. The replaceable aperture for a medium-power laser according to claim 1, characterized in that, The through hole (1.1) of the aperture (1) is circular, square, triangular or elliptical in shape.

4. The replaceable aperture for a medium-power laser according to claim 1, characterized in that, The outer surface of the fixing device (2) is blackened.

5. The replaceable aperture for a medium-power laser according to claim 1, characterized in that, The first connecting internal thread (2.3) and the second connecting internal thread (2.4) have different specifications.

6. The replaceable aperture for a medium-power laser according to claim 1, characterized in that, The rotating groove (1.3) is specifically a straight groove, a cross groove, or a hexagonal groove.

7. The replaceable aperture for a medium-power laser according to claim 1, characterized in that, The height and length of the frustum-shaped groove (1.2) are less than the height of the aperture (1).

8. The replaceable aperture for a medium-power laser according to claim 1, characterized in that, The outer diameter of the frustum-shaped groove (1.2) is larger than the inner diameter of the frustum-shaped groove (1.2), the outer diameter of the frustum-shaped groove (1.2) is much smaller than the diameter of the aperture (1), and the inner diameter of the frustum-shaped groove (1.2) is the same as the diameter of the through hole (1.1).

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