Water-guided laser coupling device beneficial to water-light concentricity

Abstract

The invention relates to a water-guided laser coupling device beneficial to water-light concentricity, which comprises a mounting panel, an adjusting panel, a telescopic adjusting mechanism and a coupling head, and is characterized in that the mounting panel and the adjusting panel are of hollow structures, the centers allow laser transmission, the adjusting panel is arranged on the inner side of the mounting panel in a wrapping manner, and the telescopic adjusting mechanism is arranged on the adjusting panel; the telescopic adjusting mechanism penetrates through the side wall of the mounting panel to abut against the outer wall of the adjusting panel, the coupling head is connected to the adjusting panel, the distance of the telescopic adjusting mechanism penetrating through the mounting panel is different, and the positions of the adjusting panel and the coupling head can be adjusted so that a laser beam can be concentric with a water column. Through ingenious structural design and an accurate adjusting mechanism, the structure of the coupling device is more compact and simpler, operation is very convenient and fast, accurate concentric alignment and efficient coupling of a laser beam and a water column are achieved, and a powerful guarantee is provided for improving the output efficiency and the application effect of water-guided laser.

Description

Technical Field

[0001] The present invention relates to the field of water-guided laser technology, and more particularly to a water-guided laser coupling device which is beneficial to water-light concentricity. Background Art

[0002] Water-guided laser technology, also known as laser microjet technology, is an advanced laser processing technology. Its principle is mainly to utilize the phenomenon of total reflection of laser at the interface between water and air, couple the laser beam into the micro water jet and maintain a very high laser energy density in the water jet, thereby realizing the processing of materials.

[0003] However, some key scientific and technological issues that need to be addressed in realizing water-conducting laser processing technology include whether the laser beam and the water beam fiber are concentric. This is because the coupling of the laser and the water beam fiber is a key link in water-conducting laser processing technology, and concentricity is crucial to ensure that the laser energy is effectively transmitted to the processed material.

[0004] Traditional water-guided laser devices generally use the following two key steps or technologies to adjust the water-light concentricity: 1. Adjustment of laser spot and divergence angle before coupling. Before coupling the laser with the water beam fiber, the size and divergence angle of the laser spot need to be precisely adjusted. This usually requires the use of professional optical equipment or software for simulation and optimization to ensure that the laser beam can be coupled to the water beam in the best way. However, this method may require a high degree of professional skills and experience in the adjustment process, increasing the complexity of the operation, which may be a great challenge for non-professionals.

[0005] 2. Real-time monitoring and feedback system: Some high-end water-guided laser equipment may also be equipped with real-time monitoring and feedback systems, which can detect the concentricity of the laser beam and the water column in real time and automatically adjust when deviations are found, which helps to ensure stable concentricity throughout the processing process, thereby improving processing accuracy and quality. However, real-time monitoring and feedback systems are usually more expensive, increasing the overall cost of the equipment.

[0006] Although traditional water-guided laser devices have made some progress in adjusting water-light concentricity, these technologies still have some potential defects and challenges. In order to overcome these defects, the field needs to explore more precise, efficient and simpler water-light concentric coupling devices. Summary of the invention

[0007] Based on this, in order to solve the above technical problems, the present invention provides a water-guided laser coupling device which is beneficial to the concentricity of water and light, which not only makes the structure of the coupling device more compact and simple, but also facilitates the operation, thereby realizing the precise concentric alignment and efficient coupling of the laser beam and the water column.

[0008] To achieve the above-mentioned purpose, the present invention provides a water-guided laser coupling device that is conducive to water-light concentricity, comprising a mounting panel, an adjustment panel, a retractable adjustment mechanism and a coupling head, wherein the mounting panel and the adjustment panel are both hollow structures, and the center allows laser transmission, the adjustment panel is wrapped around the inner side of the mounting panel, the retractable adjustment mechanism passes through the side wall of the mounting panel and abuts against the outer wall of the adjustment panel, the coupling head is connected to the adjustment panel, and the retractable adjustment mechanism passes through the mounting panel at different distances, and the positions of the adjustment panel and the coupling head can be adjusted to make the laser beam concentric with the water column.

[0009] In one embodiment, the retractable adjustment mechanism is a fine-tuning screw, which is evenly and symmetrically arranged at four positions of the mounting panel to allow fine-tuning of the position of the adjustment panel and the coupling head in four directions: front, back, left, and right.

[0010] In one of the embodiments, a wear-resistant strip is further provided between the telescopic adjustment mechanism and the outer wall of the adjustment panel.

[0011] In one embodiment, a recess is provided on the adjustment panel from the outer wall to the inner wall, and the wear-resistant strip is accommodated in the recess.

[0012] In one embodiment, the wear strip is made of silicon carbide, silicon nitride or polytetrafluoroethylene.

[0013] In one of the embodiments, the coupling head includes an upper coupling head and a lower coupling head, the upper surface of the upper coupling head is connected to the lower surface of the adjustment panel, the upper coupling head is a hollow structure, the center allows the laser to pass through, the lower surface of the upper coupling head is provided with a guide groove, and the upper surface of the lower coupling head is provided with a mounting rib, and the mounting rib and the guide groove are matched and installed to complete the rapid assembly of the upper coupling head and the lower coupling head.

[0014] In one of the embodiments, the upper coupling head is provided with a locking layer, and after the installation ribs are matched from the guide grooves, they are rotated to the locking layer to complete the quick assembly of the upper coupling head and the lower coupling head.

[0015] In one of the embodiments, the lower coupling head is provided with a window mirror, a coupling water chamber and a nozzle. The coupling water chamber is connected to a water inlet. Water flows into the coupling water chamber from the water inlet and is homogenized before flowing into the nozzle from the water outlet of the coupling water chamber to form a high-pressure water column inside the nozzle. The laser passes through the window mirror and the coupling water chamber in sequence and is ejected in the high-pressure water column.

[0016] In one of the embodiments, a flood seal is provided between the lower surface of the mounting panel and the upper surface of the adjustment panel.

[0017] In one of the embodiments, a sealing ring is provided between the connection surfaces of the upper coupling head and the lower coupling head.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a water-guided laser coupling device that is beneficial to the concentricity of water and light. The adjustment panel is built into the installation panel, and the retractable adjustment mechanism passes through the installation panel to push the adjustment panel and the coupling head to move, so as to achieve the concentric alignment of the laser beam and the high-pressure water column. The present invention not only makes the structure of the coupling device more compact and simple, but also convenient to operate through ingenious structural design and precise adjustment mechanism, thereby achieving precise concentric alignment and efficient coupling of the laser beam and the water column, and providing a strong guarantee for improving the output efficiency and application effect of the water-guided laser. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a schematic structural diagram of a water-guided laser coupling device that is beneficial to water-light concentricity.

[0020] Figure 2 It is a schematic diagram of the structure of the upper coupling head in the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the lower coupling head in the present invention. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1As shown, this embodiment provides a water-guided laser coupling device that is conducive to water-light concentricity, including a mounting panel 10, an adjustment panel 20, a retractable adjustment mechanism 30 and a coupling head 40. The mounting panel 10 and the adjustment panel 20 are both hollow structures, and the center allows the laser beam to be transmitted. The adjustment panel 20 is wrapped inside the mounting panel 10, and the retractable adjustment mechanism 30 passes through the side wall of the mounting panel 10 and abuts against the outer wall of the adjustment panel 20. The coupling head 40 is connected to the adjustment panel 20 by screws, and the retractable adjustment mechanism 30 passes through the mounting panel 10 to abut against the outer wall of the adjustment panel 20. 10, the position of the adjustment surface 20 and the coupling head 40 can be adjusted to make the laser beam concentric with the water column. Specifically, the connected coupling head 40 and the adjustment panel 20 are a linkage device, and the telescopic adjustment mechanism 30 includes an adjustment knob 301. Rotating the adjustment knob 301 can control the distance that the telescopic adjustment mechanism 30 passes through the installation panel 10. When the distance through the installation panel 10 becomes longer, the coupling head 40 and the adjustment panel 20 can be moved to the right. When the distance through the installation panel 10 becomes shorter, the coupling head 40 and the adjustment panel 20 can be moved to the left. The laser beam is incident from the hollow positions of the installation panel 10 and the adjustment panel 20 in turn and transmitted to the coupling head 40, and then output from the center of the high-pressure water column formed in the coupling head 40. The water-guided laser coupling device provided in this embodiment is conducive to the concentricity of water and light. Through the ingenious structural design and precise adjustment mechanism, not only the structure of the coupling device is more compact and simple, but also the operation is extremely convenient, and the precise concentric alignment and efficient coupling of the laser beam and the water column are achieved, which provides a strong guarantee for improving the output efficiency and application effect of the water-guided laser.

[0030] In one embodiment, the telescopic adjustment mechanism 30 is a fine-tuning screw, which is evenly and symmetrically arranged at four positions of the mounting panel 10 to allow fine-tuning of the positions of the adjustment panel 10 and the coupling head 40 in the four directions of front, back, left and right. To further improve the accuracy and stability of the adjustment, the telescopic adjustment mechanism 30 is also equipped with a locking device for locking the position after the adjustment is completed to prevent displacement due to vibration or external force.

[0031] In one embodiment, a wear-resistant strip 50 is further provided between the telescopic adjustment mechanism 30 and the outer wall of the adjustment panel 20. The wear-resistant strip 50 is made of a material with high hardness and high wear resistance, and for example, silicon carbide, silicon nitride, polytetrafluoroethylene or other high-performance ceramic materials can be used to make the wear-resistant strip 50. The wear-resistant strip can still maintain good surface finish and dimensional stability when subjected to high pressure and frequent friction, so that the displacement of the adjustment panel 20 can be precisely controlled. The wear-resistant strip 50 is precisely installed on the contact surface between the outer wall of the adjustment panel 20 and the telescopic adjustment mechanism 30, forming a protective layer, which effectively isolates the direct contact between the two components, thereby reducing wear and friction noise. The use of the wear-resistant strip 50 not only improves the durability of the device, but also ensures the precise fit between the adjustment panel 20 and the telescopic adjustment mechanism 30. Since the wear-resistant strip 50 has a low friction coefficient, it helps to maintain the smoothness and precision of the adjustment mechanism 30 during movement, so that the rotation of the adjustment knob 301 can be more accurately converted into the displacement of the adjustment panel 20 and the coupling head 40. In addition, the wear-resistant strip 50 is easy to replace and maintain. When the wear reaches a certain level, the user can easily remove it and replace it with a new wear-resistant strip, thereby extending the service life of the entire water-guided laser coupling device.

[0032] In one embodiment, the adjustment panel 20 is provided with a recess from the outer wall to the inner wall, and the wear-resistant strip 50 is accommodated in the recess. The recess starts from the outer wall of the adjustment panel 20 and extends toward the inner wall, but does not penetrate the inner wall, forming a structure similar to a blind hole, which ensures the stable installation of the wear-resistant strip 50 and avoids the interference between the wear-resistant strip 50 and other structures inside the adjustment panel 20, thereby ensuring the overall structural strength and stability of the adjustment panel 20. The shape of the wear-resistant strip matches the shape of the gap formed before the installation panel and the adjustment panel, ensuring that the wear-resistant strip 50 can fit the gap tightly after installation, effectively reducing friction and wear. At the same time, the precise shape of the wear-resistant strip 50 also enables it to be evenly distributed when under pressure, avoiding local excessive wear, and further extending the service life of the wear-resistant strip 50 and the entire water-guided laser coupling device. The present embodiment provides a water-guided laser coupling device that is beneficial to water-light concentricity. By optimizing the design of the adjustment panel 20 and adding wear-resistant strips 50 that match the shape of the gap, the water-guided laser coupling device of the present embodiment further improves durability and ease of maintenance while maintaining high-precision adjustment, which not only extends the service life of the device, but also makes the overall device more reliable and efficient.

[0033] like Figure 2-3As shown, in one embodiment, the coupling head 40 includes an upper coupling head 401 and a lower coupling head 402, the upper surface of the upper coupling head 401 is connected to the lower surface of the adjustment panel 20, the upper coupling head 401 is a hollow structure, the center allows the laser beam to pass through, the lower surface of the upper coupling head 401 is provided with a guide groove 4011, and the upper surface of the lower coupling head 402 is provided with a mounting rib 4021. After the mounting rib 4021 and the guide groove 4011 are matched and installed, the upper coupling head 401 and the lower coupling head 402 can be quickly assembled.

[0034] In one of the embodiments, a locking layer 4012 is provided on the lower surface of the upper coupling head 401 at a position adjacent to the guide groove 4011. When the installation rib 4021 is first inserted into the guide groove 4011, the lower coupling head 402 is rotated to slide the installation rib 4021 along a preset track to the locking layer 4012. At this time, the limiting structure firmly locks the installation rib 4021, thereby completing the rapid and stable assembly of the upper coupling head 401 and the lower coupling head 402. This design not only simplifies the assembly process, but also greatly improves the accuracy and efficiency of assembly. The water-guided laser coupling device that is conducive to water-light concentricity provided in this embodiment not only realizes efficient transmission and precise control of the laser beam, but also greatly improves the performance, reliability and maintenance convenience of the system, and provides strong support for applications in the fields of laser processing and measurement.

[0035] In one embodiment, the lower coupling head 402 is provided with a window mirror 4022, a coupling water cavity 4023 and a nozzle 4024. The window mirror 4022 serves as a portal for the laser beam to enter the coupling water cavity 4023. The window mirror 4022 has high light transmittance and anti-reflection properties, ensuring efficient transmission of the laser beam. The coupling water cavity 4023 is connected to a water inlet. The water flows into the coupling water cavity 4023 from the water inlet, and after being homogenized, it flows into the nozzle 4024 from the water outlet of the coupling water cavity 4023, and then forms a high-pressure water column inside the nozzle 4024, providing a stable transmission medium for the laser beam. The output power and accuracy of the laser beam are further enhanced through the focusing effect of the high-pressure water column. The laser passes through the window mirror 4022 and the coupling water cavity 4023 in sequence and is emitted in the high-pressure water column.

[0036] In one of the embodiments, a pan seal is provided between the lower surface of the mounting panel 10 and the upper surface of the adjustment panel 20, which can effectively prevent external pollutants such as dust and water vapor from entering the system, thereby ensuring the cleanliness and stability of the laser beam transmission path.

[0037] In one of the embodiments, a sealing ring is provided between the connection surfaces of the upper coupling head 401 and the lower coupling head 402, which further enhances the sealing performance of the system and prevents performance degradation or failure due to leakage at the connection.

[0038] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0039] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A water-guided laser coupling device that facilitates water-light concentricity, characterized in that: It includes an installation panel, an adjustment panel, a retractable adjustment mechanism and a coupling head. The installation panel and the adjustment panel are both hollow structures, and the center allows laser transmission. The adjustment panel is wrapped on the inner side of the installation panel. The retractable adjustment mechanism passes through the side wall of the installation panel and abuts against the outer wall of the adjustment panel. The coupling head is connected to the adjustment panel. The distance that the retractable adjustment mechanism passes through the installation panel is different. The position of the adjustment panel and the coupling head can be adjusted to make the laser beam concentric with the water column.

2. The water-guided laser coupling device that facilitates water-light concentricity according to claim 1, characterized in that: The telescopic adjustment mechanism is a fine-tuning screw, which is evenly and symmetrically arranged at four positions of the mounting panel to allow fine-tuning of the positions of the adjustment panel and the coupling head in four directions: front, back, left, and right.

3. The water-guided laser coupling device that facilitates water-light concentricity according to claim 1, characterized in that: A wear-resistant strip is also arranged between the telescopic adjustment mechanism and the outer wall of the adjustment panel.

4. The water-guided laser coupling device that facilitates water-light concentricity according to claim 2, characterized in that: The adjustment panel is provided with a recess from the outer wall to the inner wall, and the wear-resistant strip is accommodated in the recess.

5. A water-guided laser coupling device that facilitates water-light concentricity according to claim 3 or 4, characterized in that: Wear strips are made of silicon carbide, silicon nitride or polytetrafluoroethylene.

6. The water-guided laser coupling device that facilitates water-light concentricity according to claim 1, characterized in that: The coupling head comprises an upper coupling head and a lower coupling head. The upper surface of the upper coupling head is connected to the lower surface of the adjustment panel. The upper coupling head is a hollow structure, and the center allows the laser to pass through. The lower surface of the upper coupling head is provided with a guide groove, and the upper surface of the lower coupling head is provided with a mounting rib. After the mounting rib and the guide groove are matched and installed, the upper coupling head and the lower coupling head can be quickly assembled.

7. The water-guided laser coupling device that facilitates water-light concentricity according to claim 6, characterized in that: The upper coupling head is provided with a locking layer, and after the installation ribs are matched from the guide grooves, they are rotated to the locking layer to complete the rapid assembly of the upper coupling head and the lower coupling head.

8. The water-guided laser coupling device that facilitates water-light concentricity according to claim 1, characterized in that: The lower coupling head is provided with a window mirror, a coupling water cavity and a nozzle. The coupling water cavity is connected to a water inlet. Water flows into the coupling water cavity from the water inlet and is homogenized. Then, water flows into the nozzle from the water outlet of the coupling water cavity to form a high-pressure water column inside the nozzle. The laser passes through the window mirror and the coupling water cavity in sequence and is emitted in the high-pressure water column.

9. The water-guided laser coupling device that facilitates water-light concentricity according to claim 1, characterized in that: A flood seal is provided between the lower surface of the mounting panel and the upper surface of the adjusting panel.

10. A water-guided laser coupling device that facilitates water-light concentricity according to any one of claims 6 to 8, characterized in that: A sealing ring is arranged between the connection surfaces of the upper coupling head and the lower coupling head.

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