A laser coupler device and system integrating collimation and focusing linkage adjustment

Abstract

This invention relates to the field of laser coupling technology and discloses a laser coupler device and system integrating collimation and focusing linkage adjustment. The device includes: a housing, and a collimation system, a beam splitting system, a focusing system, an explosion-proof component, a detection component, and a control component arranged sequentially along the laser transmission direction. The collimation system includes a collimating lens driven by a first motor and a linkage gear; the focusing system includes a focusing lens driven by a second motor, a third motor, and a fourth motor; the detection component includes a detection plate and a camera; and the control component includes a processor. This invention, through integrated layout and motor-driven structure, achieves linkage adjustment of collimation and focusing, solving the problems of cumbersome adjustment, poor structural stability, and low coupling accuracy in existing devices, and improving the degree of automation and coupling consistency.

Description

Technical Field

[0001] This invention relates to the field of laser coupling technology, and more specifically, to a laser coupler device and system that integrates collimation and focusing linkage adjustment. Background Technology

[0002] Laser couplers are commonly used to couple laser output from a laser into optical fibers or other optical transmission components, and have wide applications in laser processing, laser sensing, optical communication, and related optical equipment. To improve laser transmission efficiency and ensure output beam quality, it is usually necessary to adjust the laser's collimation, focusing, and fiber entry position to maintain a good match between the laser beam and the subsequent optical channel.

[0003] In existing technologies, laser coupling devices generally include a collimating lens, a focusing lens, and corresponding mounting and support structures. The laser optical path is corrected and coupled by adjusting the position or orientation of the relevant optical components. Some devices employ a split structure to perform collimation and focusing adjustments separately, while others require manual correction of the position of each optical component individually. In practical applications, due to the large number of optical components and the complex assembly relationships, collimation and focusing adjustments often interfere with each other, leading to cumbersome adjustment processes and a high degree of dependence on the operator's experience.

[0004] Furthermore, existing laser coupling devices often suffer from issues such as relatively independent functional modules and inconsistent installation benchmarks in their structural layout. Under conditions of prolonged use, vibration, shock, or frequent adjustments, the relative positions of related optical components are prone to shift, thus affecting the stability of laser transmission and coupling consistency. At the same time, some devices lack intuitive and stable detection methods, making it difficult to reflect the coupling status in a timely and accurate manner, resulting in low adjustment efficiency and requiring improvement in repeatability. Summary of the Invention

[0005] In view of this, the present invention proposes a laser coupler device and system that integrates collimation and focusing linkage adjustment, aiming to solve the problems of independent collimation and focusing adjustment, cumbersome adjustment process, insufficient structural stability, and low coupling accuracy and repeatability in existing laser couplers.

[0006] In one aspect, the present invention proposes a laser coupler device integrating collimation and focusing linkage adjustment, comprising: The housing, and the collimation system, beam splitting system, focusing system and explosion-proof components arranged sequentially within the housing along the laser transmission direction, also include a detection component and a control component disposed on the light output side of the focusing system; The collimation system includes an optical fiber assembly, a collimation sleeve, a collimation inner cylinder, a collimation lens, a guide post, a linkage gear, and a first motor. The collimation sleeve is sleeved on the outer wall of the optical fiber assembly. The collimation inner cylinder, the collimation sleeve, and the collimation lens are coaxially arranged. The guide post is connected to the collimation inner cylinder. One end of the linkage gear is connected to the collimation inner cylinder, and the other end is connected to the first motor. The focusing system includes a focusing outer cylinder, a focusing middle cylinder, a focusing inner cylinder, a focusing O-ring, a focusing lens, a first fixing frame, a second fixing frame, a sliding member, a first lead screw, a second motor, a first elastic movable member, a second elastic movable member, a second lead screw, a third lead screw, a third motor, and a fourth motor. The focusing outer cylinder, the focusing middle cylinder, and the focusing inner cylinder are sequentially nested from the outside to the inside. The second lead screw is connected to the third motor, and the third lead screw is connected to the fourth motor. The sliding member is disposed on the side wall of the first fixing frame, and the focusing O-ring is sleeved on the side wall of the focusing lens. The detection assembly includes a flange head, an optical fiber interface, a detection plate, and a camera. The flange head is connected to the explosion-proof assembly, the optical fiber interface is located on the flange head, the detection plate is located on the light-emitting side of the focusing system, and the camera is located on the opposite side of the detection plate and fixed on the explosion-proof assembly. The control component includes a processor, which is fixed to the housing.

[0007] Furthermore, the collimating sleeve is provided with arc-shaped guide grooves on its two opposite sides, and the collimating inner cylinder is provided with round holes at positions corresponding to the arc-shaped guide grooves. The guide post passes through the arc-shaped guide grooves and is fixed to the corresponding round holes.

[0008] Furthermore, the linkage gear is driven by the collimating inner cylinder, the output end of the first motor is driven by the linkage gear, and the collimating mirror is disposed inside the collimating inner cylinder.

[0009] Furthermore, the inner wall of the collimating sleeve is provided with an O-ring groove, and a collimating O-ring is also provided in the O-ring groove. The collimating sleeve is provided with a set screw that penetrates the collimating sleeve and abuts against the outer wall of the collimating inner cylinder. The collimating sleeve is also provided with a wing that is fixedly connected to the outer shell.

[0010] Furthermore, the focusing lens is disposed inside the inner focusing cylinder, the inner focusing cylinder is sleeved inside the middle focusing cylinder, and the middle focusing cylinder is sleeved inside the outer focusing cylinder.

[0011] Furthermore, both the first and second elastic movable components are U-shaped structures, and the first and second elastic movable components are arranged perpendicular to each other. The focusing outer cylinder passes through the first elastic movable component, the second elastic movable component, and the first fixed frame and is fixedly connected to the first fixed frame. The third motor is driven by the first elastic movable component through the second lead screw, and the fourth motor is driven by the second elastic movable component through the third lead screw.

[0012] Furthermore, the second fixing bracket is fixed to the bottom wall of the outer shell, and the second fixing bracket is provided with a tongue. The first fixing bracket is fixedly connected to the sliding member, and the sliding member is provided with a sliding groove that cooperates with the tongue.

[0013] Furthermore, the sliding member is provided with a guide hole, the first lead screw passes through the guide hole, and the output end of the second motor is connected to the first lead screw for transmission.

[0014] Furthermore, the detection plate is a metal plate, and a circular groove is provided on the detection plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By sequentially integrating the collimation system, beam splitting system, focusing system, explosion-proof components, detection components, and control components along the laser transmission direction within the same housing, the functional units form an integrated structure under a unified installation benchmark, which helps to reduce assembly deviations caused by the separate arrangement of multiple modules and improves the overall structural stability; wherein, the collimation system adopts a drive adjustment structure consisting of a first motor, a linkage gear, a collimation inner cylinder, and a collimation lens, which can achieve stable adjustment of the collimation lens, thus improving the controllability of collimation adjustment; the focusing system adopts a focusing outer cylinder, a focusing... The nested structure of the focusing cylinder and the inner focusing cylinder, combined with the first fixed frame, the second fixed frame, the sliding component, the first lead screw, the second lead screw, the third lead screw, and the second, third, and fourth motors, provides stable support and a multi-directional adjustment foundation for the focusing lens, which is beneficial for improving the precision and linkage of focusing adjustment. Simultaneously, the detection plate and camera in the detection assembly are respectively positioned at relative positions on the light-emitting side of the focusing system, and the camera is fixed to the explosion-proof component, facilitating stable acquisition of light spot image information. The processor in the control assembly is fixed to the outer casing, facilitating centralized control with the detection assembly and various driving components. Therefore, this invention achieves an integrated arrangement of collimation, focusing, detection, and control in its structure, which is beneficial for improving the adjustment stability, assembly consistency, and coupling accuracy of the laser coupling device.

[0016] On the other hand, this application also provides a laser coupler system integrating collimation and focusing linkage adjustment, used to realize the above-mentioned laser coupler device integrating collimation and focusing linkage adjustment, including: The processor is electrically connected to the camera and the first motor, the second motor, the third motor and the fourth motor respectively; The processor is configured to control at least one of the first motor, the second motor, the third motor, and the fourth motor based on the light spot image on the detection board surface captured by the camera.

[0017] It is understandable that the aforementioned laser coupler system and method integrating collimation and focusing linkage adjustment have the same beneficial effects, and will not be elaborated further here. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is an overall structural diagram of a laser coupler device integrating collimation and focusing linkage adjustment provided in an embodiment of the present invention; Figure 2 An exploded view of a collimation system of a laser coupler device integrating collimation and focusing linkage adjustment, provided in an embodiment of the present invention; Figure 3 This is an exploded view of the focusing system and detection components provided in an embodiment of the present invention; Figure 4 This is a functional block diagram of a laser coupler system that integrates collimation and focusing linkage adjustment, provided for an embodiment of the present invention.

[0019] The components are as follows: 1. Outer shell; 2. Collimation system; 201. Fiber optic assembly; 202. Collimation sleeve; 203. Arc-shaped guide groove; 204. Top screw; 205. Wing; 206. Guide post; 207. Circular hole; 208. O-ring groove; 209. First motor; 210. Linkage gear; 211. Collimation inner cylinder; 212. Collimation lens; 3. Beam splitting system; 4. Focusing system; 401. Focusing outer cylinder; 402. Focusing middle cylinder; 403. Focusing inner cylinder; 404. Focusing O-ring; 405. Focusing lens; 406. First elastic movable component; 407. Second elastic movable component; 408. First fixed frame; 409. Sliding component; 410. Slide groove; 411. Guide hole; 412. Second motor; 413. First lead screw; 414. Second fixed frame; 415. Tongue; 416. Third motor; 417. Second lead screw; 418. Fourth motor; 419. Third lead screw; 5. Processor; 6. Explosion-proof component; 601. Flange head; 602. Fiber optic interface; 603. Camera; 604. Detection plate. Detailed Implementation

[0020] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] See Figure 1-3 As shown, this application proposes a laser coupler device that integrates collimation and focusing linkage adjustment, comprising: The housing 1, and the collimation system 2, beam splitting system 3, focusing system 4 and explosion-proof component 6 arranged sequentially inside the housing 1 along the laser transmission direction, also include a detection component and a control component arranged on the light output side of the focusing system 4; The collimation system 2 includes an optical fiber assembly 201, a collimation sleeve 202, a collimation inner cylinder 211, a collimation lens 212, a guide post 206, a linkage gear 210, and a first motor 209. The collimation sleeve 202 is sleeved on the outer wall of the optical fiber assembly 201. The collimation inner cylinder 211, the collimation sleeve 202, and the collimation lens 212 are coaxially arranged. The guide post 206 is connected to the collimation inner cylinder 211. One end of the linkage gear 210 is connected to the collimation inner cylinder 211, and the other end is connected to the first motor 209. The focusing system 4 includes an outer focusing cylinder 401, a middle focusing cylinder 402, an inner focusing cylinder 403, a focusing O-ring 404, a focusing lens 405, a first fixing frame 408, a second fixing frame 414, a sliding member 409, a first lead screw 413, a second motor 412, a first elastic movable member 406, a second elastic movable member 407, a second lead screw 417, a third lead screw 419, a third motor 416, and a fourth motor 418. The outer focusing cylinder 401, the middle focusing cylinder 402, and the inner focusing cylinder 403 are sequentially nested from the outside to the inside. The second lead screw 417 is connected to the third motor 416, and the third lead screw 419 is connected to the fourth motor 418. The sliding member 409 is disposed on the side wall of the first fixing frame 408, and the focusing O-ring 404 is sleeved on the side wall of the focusing lens 405. The detection assembly includes a flange head 601, an optical fiber interface 602, a detection plate 604, and a camera 603. The flange head 601 is connected to the explosion-proof assembly 6. The optical fiber interface 602 is set on the flange head 601. The detection plate 604 is set on the light-emitting side of the focusing system 4. The camera 603 is set on the opposite side of the detection plate 604 and fixed on the explosion-proof assembly 6. The control component includes a processor 5, which is fixed to the housing 1.

[0022] Specifically, the outer casing 1 serves as the mounting carrier and position reference for each functional component. The collimation system 2, beam splitting system 3, focusing system 4, and explosion-proof component 6 are all integrated within the outer casing 1 and arranged sequentially along the laser transmission direction. This ensures that the relative positional relationship between each optical component remains stable after assembly, reducing optical path offset caused by dispersed installation. Meanwhile, the detection component is located on the light-emitting side of the focusing system 4, and the control component is located on the outer casing 1, forming an integrated layout in the structure of the device. This facilitates the assembly of the entire machine and helps to shorten the detection and control links, improving the consistency of adjustment response.

[0023] In the collimation system 2, the collimation sleeve 202 is fitted onto the outer wall of the fiber optic assembly 201 to provide a mounting base for the collimation inner cylinder 211 and the collimation lens 212. The collimation inner cylinder 211, the collimation sleeve 202, and the collimation lens 212 are coaxially arranged so that the laser output from the fiber optic assembly 201 can pass through the collimation lens 212 along the same axis, thus ensuring the consistency of the collimation optical path axis. The guide post 206 is connected to the collimation inner cylinder 211 and can guide and limit the movement posture of the collimation inner cylinder 211, reducing the sway of the collimation inner cylinder 211 during the adjustment process. One end of the linkage gear 210 is connected to the collimation inner cylinder 211, and the other end is connected to the first motor 209 to transmit the driving action of the first motor 209 to the collimation inner cylinder 211, so that the collimation inner cylinder 211 can be adjusted accordingly under the drive, thereby driving the collimation lens 212 to achieve collimation state adjustment. With the above settings, the collimation system 2 can achieve mechanical adjustment while maintaining the stability of the optical axis, which is beneficial to improving the accuracy and repeatability of collimation adjustment.

[0024] In the focusing system 4, the outer focusing cylinder 401, the middle focusing cylinder 402, and the inner focusing cylinder 403 are sequentially nested from the outside to the inside, forming a layered focusing support structure. This not only facilitates the installation and positioning of the focusing lens 405 but also helps ensure the coaxiality of the focusing optical path. The focusing O-ring 404 is fitted on the side wall of the focusing lens 405, which can cover and position the focusing lens 405 and help reduce the impact of the assembly gap between the focusing lens 405 and the surrounding structure, thereby improving the stability of the focusing lens 405 installation. The sliding member 409 is set on the side wall of the first fixed frame 408, so that the first fixed frame 408 can form a relatively movable foundation with the help of the sliding member 409. The second lead screw 417 is connected to the third motor 416, and the third lead screw 419 is connected to the fourth motor 418, so as to form corresponding drive transmission branches. By combining the first elastic movable member 406 and the second elastic movable member 407, the focusing system 4 can not only support and fix the focusing component, but also achieve linkage adjustment in different directions. This allows the focusing adjustment and attitude correction to be completed in the same structural system, which is beneficial to improving the matching accuracy of the focusing position and the coupling position.

[0025] In the detection assembly, flange head 601 is connected to explosion-proof assembly 6, and fiber optic interface 602 is disposed on flange head 601 to form a connection interface with the external fiber optic end; detection plate 604 is disposed on the light-emitting side of focusing system 4 to receive the light spot information output by focusing system 4; camera 603 is disposed on the opposite side of detection plate 604 and fixed on explosion-proof assembly 6, so that the relative positional relationship between camera 603 and detection plate 604 remains stable, which is conducive to the stable acquisition of light spot image on the surface of detection plate 604 and reduces the impact of changes in detection angle on image judgment results. By integrating flange head 601, fiber optic interface 602, detection plate 604 and camera 603 into the same detection link, the device can obtain corresponding detection information while completing optical adjustment, providing a stable data foundation for subsequent control.

[0026] In the control assembly, the processor 5 is fixed to the housing 1, forming an integrated mounting structure with the device body, facilitating a stable connection with the camera 603 and each motor. Based on the light spot image on the surface of the detection plate 604 acquired by the camera 603, the processor 5 coordinates the control of the drive components in the collimation system 2 and the focusing system 4, enabling collimation and focusing adjustments to be executed in conjunction within the same control framework. Thus, by integrating collimation, focusing, detection, and control into the same coupler structure, this device improves the stability, linkage, and adjustment accuracy of the optical adjustment process while maintaining overall structural compactness.

[0027] In some embodiments of this application, arc-shaped guide grooves 203 are respectively provided through the two opposite sides of the collimating sleeve 202, and circular holes 207 are respectively provided at the positions corresponding to the arc-shaped guide grooves 203. The guide post 206 passes through the arc-shaped guide grooves 203 and is fixed to the corresponding circular holes 207.

[0028] Specifically, the arc-shaped guide grooves 203 are formed on the two opposite side walls of the collimating sleeve 202, and the two arc-shaped guide grooves 203 are correspondingly arranged along the circumference of the collimating sleeve 202; the circular holes 207 are formed on the outer peripheral wall of the collimating inner cylinder 211 and are matched with the corresponding arc-shaped guide grooves 203; the guide post 206 passes through the arc-shaped guide grooves 203 and is fixed in the corresponding circular holes 207, thereby forming a guiding fit relationship between the collimating inner cylinder 211 and the collimating sleeve 202.

[0029] When the aligning inner cylinder 211 rotates relative to the aligning sleeve 202, the guide post 206 can move along the extension trajectory of the arc-shaped guide groove 203. Since the guide post 206 is fixed on the aligning inner cylinder 211, the arc-shaped guide groove 203 can limit the movement path of the guide post 206, thereby constraining the rotation range of the aligning inner cylinder 211. By setting the arc-shaped guide groove 203 as a through structure, it is convenient to assemble and install the guide post 206, and it also provides a clear guiding path for the guide post 206 during adjustment, thereby reducing the swaying and jamming of the aligning inner cylinder 211 during movement.

[0030] Furthermore, since the arc-shaped guide grooves 203 are respectively set on two opposite sides of the collimating sleeve 202, the guide post 206 cooperates with the corresponding two-sided structures, which makes the force on the collimating inner cylinder 211 more balanced when adjusted relative to the collimating sleeve 202. This helps maintain the coaxial state between the collimating inner cylinder 211 and the collimating sleeve 202 and reduces the risk of tilting caused by unilateral guidance. At the same time, the circular hole 207 serves as the fixing part of the guide post 206, ensuring the stability of the connection between the guide post 206 and the collimating inner cylinder 211, so that the guide post 206 can synchronously drive the collimating inner cylinder 211 to make corresponding adjustments when moving along the arc-shaped guide groove 203.

[0031] By setting an arc-shaped guide groove 203 on the collimating sleeve 202 and having the guide post 206 pass through the arc-shaped guide groove 203 and be fixed in the round hole 207 of the collimating inner cylinder 211, motion guidance and stroke limitation can be achieved simultaneously during the adjustment of the collimating inner cylinder 211. This not only helps to improve the stability and controllability of the collimation adjustment process, but also helps to ensure the axial stability of the collimating mirror 212 during adjustment, thereby improving the assembly accuracy and repeatability of the collimation system 2.

[0032] In some embodiments of this application, the linkage gear 210 is drivenly connected to the collimating inner cylinder 211, the output end of the first motor 209 is drivenly connected to the linkage gear 210, and the collimating mirror 212 is disposed inside the collimating inner cylinder 211.

[0033] Specifically, the collimating lens 212 is installed inside the collimating inner cylinder 211 and is set synchronously with the collimating inner cylinder 211, so that the spatial position of the collimating lens 212 is consistent with the adjustment state of the collimating inner cylinder 211. The linkage gear 210 is driven by the collimating inner cylinder 211, and the output end of the first motor 209 is driven by the linkage gear 210. The driving force output by the first motor 209 can be transmitted to the collimating inner cylinder 211 through the linkage gear 210, and drive the collimating inner cylinder 211 to rotate relative to the collimating sleeve 202 for adjustment, thereby driving the collimating lens 212 set in the collimating inner cylinder 211 to move synchronously.

[0034] In this structure, the first motor 209 serves as the power source for collimation adjustment, providing a stable drive output. The linkage gear 210 acts as a transmission component, engaging with both the output of the first motor 209 and the collimation inner cylinder 211, thus establishing a transmission link between the power output and the adjustment of the collimating mirror 212. Since the collimating mirror 212 is housed within the collimation inner cylinder 211, the rotation of the collimation inner cylinder 211 directly acts on the collimating mirror 212, ensuring that the collimating mirror 212 maintains a consistent motion with the drive structure during adjustment, avoiding transmission lag or positional deviation caused by separate installation.

[0035] Furthermore, by employing a transmission mechanism involving the first motor 209, the linkage gear 210, and the collimating inner cylinder 211, the electric drive adjustment and the optical collimating component mounting structure can be integrated into one unit, giving the collimating lens 212 a better continuity and controllability in its adjustment process. Compared to manual adjustment, this transmission structure facilitates fine adjustment of the collimating lens 212's position, improving collimation adjustment efficiency and reducing the impact of manual operation on adjustment accuracy.

[0036] Furthermore, the collimating lens 212 is housed within the collimating inner cylinder 211, providing stable support. Combined with the fit between the collimating inner cylinder 211 and the collimating sleeve 202, the collimating lens 212 maintains good axial stability during adjustment, thereby reducing the impact of collimating lens 212 misalignment on the laser transmission path. Thus, by connecting the output of the first motor 209 to the linkage gear 210, and connecting the linkage gear 210 to the collimating inner cylinder 211, coordinated adjustment of the collimating lens 212 can be achieved. This not only improves the transmission stability and adjustment accuracy of the collimation system 2 but also ensures the consistency of the laser collimation process.

[0037] In some embodiments of this application, the inner wall of the collimation sleeve 202 is provided with an O-ring groove 208, and a collimation O-ring is also provided in the O-ring groove 208. The collimation sleeve 202 is provided with a set screw 204 that penetrates the collimation sleeve 202 and abuts against the outer wall of the collimation inner cylinder 211. The collimation sleeve 202 is also provided with a wing 205 that is fixedly connected to the outer shell 1.

[0038] Specifically, the O-ring groove 208 is disposed on the inner wall of the collimating sleeve 202, and the collimating O-ring (whose structure is the same as that of the focusing O-ring 404, but is not shown in the corresponding position in the figure) is embedded in the O-ring groove 208 and located between the collimating sleeve 202 and the collimating inner cylinder 211, thereby forming an elastic fit structure between the two after the collimating inner cylinder 211 is installed into the collimating sleeve 202. By setting the collimating O-ring, on the one hand, it can provide circumferential support and buffering for the collimating inner cylinder 211, reducing the direct rigid contact between the collimating inner cylinder 211 and the collimating sleeve 202; on the other hand, it can compensate for the assembly gap between the two, improve the stability of the collimating inner cylinder 211 in the collimating sleeve 202, and thus help maintain the coaxiality of the collimating lens 212 during the adjustment process.

[0039] A set screw 204 is inserted through the collimating sleeve 202 and abuts against the outer wall of the collimating inner cylinder 211. By adjusting the pressing state of the set screw 204, the position of the collimating inner cylinder 211 within the collimating sleeve 202 can be limited and fixed. That is, after the collimating inner cylinder 211 and collimating lens 212 are adjusted, the set screw 204 can apply a locking and positioning effect to the collimating inner cylinder 211, reducing the possibility of the collimating inner cylinder 211 shifting back due to vibration, impact, or long-term use, thereby improving the stability of maintaining the collimation state. At the same time, the set screw 204 is configured in conjunction with the collimating O-ring. The former is used to form a rigid limit, and the latter is used to form an elastic support. The two work together to reduce the adverse effects of local compression on the structural fit while ensuring the fixing effect.

[0040] The wing 205 is disposed on the collimation sleeve 202 and fixedly connected to the outer casing 1, enabling the collimation sleeve 202 to serve as a mounting connection component between the collimation system 2 and the outer casing 1. The wing 205 allows the collimation sleeve 202 to be stably installed within the outer casing 1, maintaining a stable positional reference for the collimation sleeve 202 within the entire machine, thereby providing reliable support for the collimation inner cylinder 211 and collimation lens 212 disposed within the collimation sleeve 202. Therefore, the wing 205 not only facilitates the assembly and installation of the collimation system 2 but also improves the robustness of the connection between the collimation system 2 and the outer casing 1, reducing the impact of external vibrations on the collimation adjustment accuracy.

[0041] By setting an O-ring groove 208 and a collimation O-ring on the inner wall of the collimation sleeve 202, and combining it with the setting of the set screw 204 and the wing 205, the elastic support, position limit and overall installation fixation of the collimation inner cylinder 211 can be realized at the same time, thereby improving the assembly stability, adjustment stability and working reliability of the collimation system 2, and helping to ensure the optical axis consistency during the laser collimation process.

[0042] In some embodiments of this application, the focusing lens 405 is disposed inside the focusing inner cylinder 403, the focusing inner cylinder 403 is sleeved inside the focusing middle cylinder 402, and the focusing middle cylinder 402 is sleeved inside the focusing outer cylinder 401.

[0043] Specifically, the focusing lens 405 is installed inside the focusing inner cylinder 403. The focusing inner cylinder 403, the focusing middle cylinder 402, and the focusing outer cylinder 401 adopt a nested structure from the inside out, with the focusing inner cylinder 403, the focusing middle cylinder 402, and the focusing outer cylinder 401 arranged sequentially from the inside to the outside, thus forming a focusing support assembly arranged in stages around the focusing lens 405. By placing the focusing lens 405 inside the focusing inner cylinder 403, the focusing lens 405 can be directly supported and limited. The focusing inner cylinder 403 is nested inside the focusing middle cylinder 402, and the focusing middle cylinder 402 is nested inside the focusing outer cylinder 401, which further forms a multi-layered load-bearing and protective structure around the focusing lens 405, thereby improving the overall stability of the focusing system 4.

[0044] In this structure, the inner focusing cylinder 403 serves as a direct mounting component for the focusing lens 405, supporting the focusing lens 405 and maintaining its relative position stability. The middle focusing cylinder 402 acts as an intermediate support for the inner focusing cylinder 403, positioning it in conjunction with the inner focusing cylinder 403. The outer focusing cylinder 401 serves as the connection base between the focusing system 4 and other support structures, supporting external fixing and adjustment components. Through the hierarchical arrangement of the inner focusing cylinder 403, middle focusing cylinder 402, and outer focusing cylinder 401, a progressive transition relationship is formed between the installation and support of the focusing lens 405 and the external adjustment structure, thereby reducing the adverse effects of a single component directly bearing all the installation stress.

[0045] Furthermore, since the focusing lens 405, the inner focusing cylinder 403, the middle focusing cylinder 402, and the outer focusing cylinder 401 can be arranged around the same optical path axis, this nested structure helps maintain the coaxiality of the focusing system 4 and reduces the impact of the misalignment of the focusing lens 405 on optical path transmission. At the same time, the multi-layered nesting method also facilitates the integration of the focusing lens 405's mounting structure with subsequent adjustment structures, allowing external adjustment actions to be transmitted via the outer focusing cylinder 401 and the middle focusing cylinder 402 to the inner focusing cylinder 403, and then act on the focusing lens 405 to achieve stable adjustment of the focusing state.

[0046] Furthermore, the nested arrangement of the inner focusing cylinder 403, the middle focusing cylinder 402, and the outer focusing cylinder 401 facilitates the separate assembly and step-by-step positioning of each component. This ensures ease of assembly while also helping to control the installation accuracy of the focusing lens 405. Therefore, by placing the focusing lens 405 within the inner focusing cylinder 403 and sequentially nesting the inner focusing cylinder 403, the middle focusing cylinder 402, and the outer focusing cylinder 401, the structural stability, coaxiality, and assembly reliability of the focusing system 4 can be improved, thus providing a stable structural foundation for subsequent focusing adjustments.

[0047] In some embodiments of this application, the first elastic movable member 406 and the second elastic movable member 407 are both U-shaped structures, and the first elastic movable member 406 and the second elastic movable member 407 are arranged perpendicular to each other. The focusing outer cylinder 401 passes through the first elastic movable member 406, the second elastic movable member 407 and the first fixed frame 408 and is fixedly connected to the first fixed frame 408. The third motor 416 is driven by the first elastic movable member 406 through the second lead screw 417, and the fourth motor 418 is driven by the second elastic movable member 407 through the third lead screw 419.

[0048] Specifically, both the first elastic movable member 406 and the second elastic movable member 407 adopt a U-shaped structure and are arranged perpendicularly to each other, thus forming two elastic support units acting in different directions around the focusing outer cylinder 401. Through the U-shaped structure, the first elastic movable member 406 and the second elastic movable member 407, while maintaining overall connection stability, can each provide elastic deformation space in their respective directions, allowing the focusing system 4 to form controllable micro-displacements or attitude changes when driven for adjustment. Since the first elastic movable member 406 and the second elastic movable member 407 are arranged perpendicularly to each other, they can respectively support and respond to the focusing outer cylinder 401 in different adjustment directions, thus forming a two-dimensional linkage adjustment basis, which is beneficial to improving the directional independence and linkage accuracy of the focusing adjustment.

[0049] The focusing outer cylinder 401 passes through the first elastic movable member 406, the second elastic movable member 407, and the first fixed frame 408, and is fixedly connected to the first fixed frame 408, forming an integrated installation relationship between the focusing outer cylinder 401, the first elastic movable member 406, the second elastic movable member 407, and the first fixed frame 408. That is, the focusing outer cylinder 401, as the outer support component of the focusing system 4, after being fixed to the first fixed frame 408, allows the main body of the focusing system 4 to be installed on the corresponding support structure. Simultaneously, the first elastic movable member 406 and the second elastic movable member 407 are fitted around the focusing outer cylinder 401 and cooperate with it, allowing the focusing outer cylinder 401 to make fine adjustments in the corresponding directions under the elastic action of the first elastic movable member 406 and the second elastic movable member 407, while maintaining the stability of the main body installation. Through the above-mentioned through-and-fixed arrangement, the focusing adjustment part, the elastic support part, and the installation and fixing part can be arranged around the same structural center, thereby helping to reduce the sway and additional errors caused by the dispersion of supports during the adjustment process.

[0050] The third motor 416 is connected to the first elastic movable member 406 via the second lead screw 417, and the fourth motor 418 is connected to the second elastic movable member 407 via the third lead screw 419, thus forming two independent drive transmission links. When the third motor 416 outputs power, it transmits the power to the first elastic movable member 406 via the second lead screw 417, causing the first elastic movable member 406 to deform or displace in the corresponding direction. When the fourth motor 418 outputs power, it transmits the power to the second elastic movable member 407 via the third lead screw 419, causing the second elastic movable member 407 to deform or displace in a direction different from the aforementioned direction. Since the first elastic movable member 406 and the second elastic movable member 407 are connected to different lead screws, and their adjustment directions are perpendicular to each other, it is possible to adjust the focusing outer cylinder 401 separately or in conjunction in two directions, thereby giving the focusing system 4 a higher degree of adjustment freedom during the focusing position adjustment process.

[0051] Furthermore, the direction along the optical path transmission is defined as the X-axis, the forward / backward direction (parallel to the horizontal plane) as the Y-axis, and the vertical direction (perpendicular to the horizontal plane) as the Z-axis. The lead screw drive structure can transmit the rotational output of the third motor 416 and the fourth motor 418 to the first elastic movable member 406 and the second elastic movable member 407 respectively, causing the first elastic movable member 406 and the second elastic movable member 407 to produce controlled elastic deformation in the corresponding directions. Since the first elastic movable member 406 and the second elastic movable member 407 are both U-shaped structures and are arranged perpendicular to each other, they can provide elastic support to the focusing outer cylinder 401 from different directions, and when driven, they can cause the focusing outer cylinder 401 to change its attitude relative to the mounting reference, thereby realizing the angle adjustment of the focusing system 4 in the Z-axis direction, that is, realizing the pitch angle adjustment. Compared with the direct rigid adjustment method, by driving the corresponding elastic movable members through the second lead screw 417 and the third lead screw 419 respectively, the angle adjustment process of the focusing outer cylinder 401 can be more continuous and stable, and it is beneficial to reduce the impact of local impacts on the stability of the focusing system 4. Meanwhile, the first elastic movable member 406 and the second elastic movable member 407 themselves have elastic characteristics, which can play a buffering and transition role in the adjustment process, thereby helping to improve the smoothness and controllability of the attitude adjustment of the focusing lens 405.

[0052] Furthermore, since the focusing outer cylinder 401 is fixedly connected to the first fixed frame 408, and the focusing lens 405, focusing inner cylinder 403, and focusing middle cylinder 402 are all supported by the structural system containing the focusing outer cylinder 401, the driving action of the third motor 416 and the fourth motor 418 on the first elastic movable member 406 and the second elastic movable member 407 can ultimately be transmitted to the entire focusing system 4, causing the spatial attitude and relative position of the focusing lens 405 to be adjusted accordingly. Thus, the first elastic movable member 406 and the second elastic movable member 407 not only play a supporting role, but also play a role in flexibly introducing the driving action into the focusing system 4, thereby enabling the focusing system 4 to maintain installation stability while possessing linkage adjustment capability.

[0053] By setting the first elastic movable member 406 and the second elastic movable member 407 as a U-shaped structure perpendicular to each other, and by connecting the third motor 416 and the fourth motor 418 to the two through the second lead screw 417 and the third lead screw 419 respectively, a bidirectional linkage elastic adjustment mechanism can be constructed around the focusing system 4. This not only helps to improve the stability, precision and repeatability of the focusing system 4 adjustment process, but also helps to improve the matching accuracy between the focusing position and the coupling position.

[0054] In some embodiments of this application, the second fixing frame 414 is fixed to the bottom wall of the outer shell 1, the second fixing frame 414 is provided with a tongue 415, the first fixing frame 408 is fixedly connected to the sliding member 409, and the sliding member 409 is provided with a sliding groove 410 that cooperates with the tongue 415.

[0055] Specifically, the second mounting bracket 414 is fixed to the bottom wall of the outer casing 1, thereby providing a stable mounting base for the relevant adjustment components of the focusing system 4. Since the second mounting bracket 414 is fixedly connected to the outer casing 1, it can maintain a stable position relative to the entire device and serves as a reference support when the first mounting bracket 408 and the sliding member 409 move and cooperate. By setting the second mounting bracket 414 on the bottom wall of the outer casing 1, the relevant transmission and guiding structures can obtain a clear mounting position inside the device, which helps to improve the overall stability of the focusing system 4 after assembly.

[0056] The second fixed frame 414 is provided with a tongue 415, and the sliding member 409 is provided with a groove 410 that mates with the tongue 415, thereby forming a sliding guide engagement relationship between the sliding member 409 and the second fixed frame 414. That is, the tongue 415 can serve as a guide, and the groove 410 can serve as a limiting channel adapted to the tongue 415. When the sliding member 409 moves relative to the second fixed frame 414, the tongue 415 can move along the extension direction of the groove 410 and limit the movement path of the sliding member 409. Through this engagement of the tongue 415 and the groove 410, the movement direction of the sliding member 409 can be more clearly defined, reducing the possibility of the sliding member 409 deviating, shaking, or getting stuck during the adjustment process, thereby helping to ensure the stability of the focusing adjustment process.

[0057] The first fixed frame 408 is fixedly connected to the sliding member 409, so that the movement of the sliding member 409 can directly drive the first fixed frame 408 to move synchronously. Since the focusing outer cylinder 401 is fixedly connected to the first fixed frame 408, when the sliding member 409 is displaced under the guiding action of the tongue 415 and the sliding groove 410, the first fixed frame 408 can drive the focusing outer cylinder 401 and the associated focusing system 4 to move accordingly. Thus, the sliding member 409 not only plays a connecting role, but also plays a role in transmitting the driving result of the transmission component to the first fixed frame 408, thereby giving the focusing system 4 a stable displacement basis during the adjustment process.

[0058] Furthermore, by fixing the second fixing frame 414 to the outer casing 1 and providing a guiding engagement structure of tongue 415 and slide groove 410 between the second fixing frame 414 and the sliding member 409, effective constraint on the movement path of the first fixing frame 408 can be achieved while ensuring structural compactness. Compared with a direct push structure without guidance, this structure can improve the linearity and repeatability of the movement of the first fixing frame 408, thereby reducing the risk of additional offset generated by the focusing system 4 during adjustment and improving the accuracy of focusing position adjustment.

[0059] The cooperation between the second fixed frame 414, tongue 415, sliding member 409 and slide groove 410 provides a stable support, guide and transmission foundation for the first fixed frame 408, so that the focusing system 4 has good motion controllability and structural stability during the adjustment process, which is conducive to improving the focusing adjustment accuracy and the overall machine working reliability.

[0060] In some embodiments of this application, the slider 409 is provided with a guide hole 411, the first lead screw 413 passes through the guide hole 411, and the output end of the second motor 412 is connected to the first lead screw 413 for transmission.

[0061] Specifically, a guide hole 411 is provided on the sliding member 409, and a first lead screw 413 passes through the guide hole 411, thereby forming a mating relationship between the first lead screw 413 and the sliding member 409. Through this arrangement, the first lead screw 413 can generate a transmission effect with the sliding member 409 when rotating, thereby driving the sliding member 409 to move in a predetermined direction. Since the sliding member 409 is fixedly connected to the first fixed frame 408, the drive of the first lead screw 413 on the sliding member 409 can be further transmitted to the first fixed frame 408, causing the focusing outer cylinder 401 and the focusing system 4, which are fixedly connected to the first fixed frame 408, to undergo corresponding displacement.

[0062] The output end of the second motor 412 is connected to the first lead screw 413, so the second motor 412 can serve as a drive source to provide rotational power to the first lead screw 413; the first lead screw 413 is used to convert the rotational output of the second motor 412 into a linear drive action on the sliding member 409. That is, when the second motor 412 is working, the first lead screw 413 rotates and, through its cooperation with the guide hole 411, drives the sliding member 409 to move along the direction defined by the tongue 415 and the slide groove 410, thereby realizing the adjustment of the position of the first fixed frame 408. Through the cooperation of the second motor 412 and the first lead screw 413, the displacement adjustment of the focusing system 4 in the corresponding direction can have electric drive characteristics, which facilitates the realization of a continuous and controllable adjustment process.

[0063] Furthermore, the first lead screw 413 passes through the guide hole 411, which not only establishes a stable transmission relationship but also helps improve the uniformity of force on the sliding member 409 during movement. Compared with the direct push-type drive method, the lead screw drive method makes the driving process smoother, reducing the impact of instantaneous impacts on the sliding member 409, the first fixed frame 408, and the focusing system 4, thereby improving the motion accuracy and structural stability during the adjustment process. At the same time, the guide hole 411 forms a fitting constraint on the first lead screw 413, which also helps reduce the possibility of skewing, vibration, or jamming during transmission.

[0064] Furthermore, since the slider 409 moves under the guidance of the aforementioned tongue 415 and groove 410, the driving force provided by the first lead screw 413 and the movement direction of the slider 409 can be coordinated, making the displacement path of the first fixed frame 408 more defined. Thus, the second motor 412, the first lead screw 413, the guide hole 411, and the slider 409 together constitute a linear drive link in the focusing system 4. This drive link can adjust the overall position of the focusing system 4 and provide a stable mechanical basis for accurate adjustment of the focusing position.

[0065] By setting a guide hole 411 on the slider 409 and passing the first lead screw 413 through the guide hole 411, and making the output end of the second motor 412 connected to the first lead screw 413, stable driving of the slider 409 and the first fixed frame 408 can be achieved. This not only helps to improve the smoothness, precision and controllability of the displacement adjustment of the focusing system 4, but also helps to improve the repeatability and reliability of the focusing adjustment process.

[0066] In some embodiments of this application, the detection plate 604 is a metal plate, and the detection plate 604 is provided with a circular groove.

[0067] Specifically, the detection plate 604 adopts a metal plate structure, which provides a relatively stable load-bearing foundation for laser detection and improves the structural strength of the detection plate 604 during installation and use, reducing the risk of deformation caused by heat, vibration, or external forces, thereby helping to maintain the flatness and positional stability of the detection surface. Since the detection plate 604 is located on the light-emitting side of the focusing system 4, the laser output from the focusing system 4 can act on the surface of the detection plate 604 to form corresponding light spot information on the detection plate 604. Using a metal plate as the detection plate 604 also facilitates the fixed connection of the detection plate 604 with other mounting components, thereby improving the installation reliability of the detection assembly in the overall machine.

[0068] The detection plate 604 has a circular groove, which serves as both the landing area for the laser spot and a reference area for detection. When the laser beam is output from the focusing system 4 and illuminates the detection plate 604, the resulting spot falls into the corresponding area of ​​the circular groove, allowing the camera 603 to capture the shape, position, and distribution of the spot. By setting the circular groove, the detection area has a clear spatial boundary, which helps improve the consistency of reference during the spot recognition process and reduces interference from other areas on the surface of the detection plate 604 for image acquisition and judgment.

[0069] Furthermore, the circular groove on the detection plate 604 structurally forms a relatively fixed target area, allowing the camera 603 to acquire corresponding image information around the area where the circular groove is located when capturing images of the surface of the detection plate 604. Because the circular groove has a regular circular outline, it can serve as one of the reference areas for spot position determination and image analysis, thereby improving the stability of determining the center position, offset state, and focusing state of the laser spot. Compared to an unmarked planar detection surface, the detection area is more clearly defined after setting the circular groove, facilitating subsequent analysis and control by the processor 5 based on the acquired images.

[0070] Furthermore, the combination of the metal plate and the circular groove not only gives the detection plate 604 good mechanical stability, but also enables it to simultaneously provide stable load-bearing capacity and clearly define the detection area. Therefore, by setting the detection plate 604 as a metal plate and incorporating the circular groove, the structural stability and reference stability of the detection assembly can be improved, thereby enhancing the accuracy of spot image acquisition and the reliability of subsequent adjustment and control.

[0071] In another preferred embodiment based on the above embodiments, see [reference] Figure 4 As shown, this embodiment provides a laser coupler system that integrates collimation and focusing linkage adjustment, including: The processor is electrically connected to the camera and the first motor, second motor, third motor and fourth motor respectively; The processor is configured to control at least one of the first, second, third, and fourth motors based on the light spot image on the surface of the detection board captured by the camera.

[0072] Understandably, the camera is used to capture light spot images on the surface of the detection plate and send the captured image information to the processor. After analyzing the light spot images, the processor controls at least one of the first motor, second motor, third motor and fourth motor to perform corresponding actions to adjust the alignment system and focusing system accordingly.

[0073] In other words, by establishing an electrical connection between the camera, processor, and various motors, this embodiment enables the laser coupler system to perform linkage adjustment based on image detection results. This allows for timely adjustment of relevant optical components when the light spot state on the detection board changes, which is beneficial for improving the automation level, adjustment accuracy, and operational stability of the laser coupling adjustment process.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A laser coupler device integrating collimation and focusing linkage adjustment, characterized in that, include: The housing, and the collimation system, beam splitting system, focusing system and explosion-proof components arranged sequentially within the housing along the laser transmission direction, also include a detection component and a control component disposed on the light output side of the focusing system; The collimation system includes an optical fiber assembly, a collimation sleeve, a collimation inner cylinder, a collimation lens, a guide post, a linkage gear, and a first motor. The collimation sleeve is sleeved on the outer wall of the optical fiber assembly. The collimation inner cylinder, the collimation sleeve, and the collimation lens are coaxially arranged. The guide post is connected to the collimation inner cylinder. One end of the linkage gear is connected to the collimation inner cylinder, and the other end is connected to the first motor. The focusing system includes a focusing outer cylinder, a focusing middle cylinder, a focusing inner cylinder, a focusing O-ring, a focusing lens, a first fixing frame, a second fixing frame, a sliding member, a first lead screw, a second motor, a first elastic movable member, a second elastic movable member, a second lead screw, a third lead screw, a third motor, and a fourth motor. The focusing outer cylinder, the focusing middle cylinder, and the focusing inner cylinder are sequentially nested from the outside to the inside. The second lead screw is connected to the third motor, and the third lead screw is connected to the fourth motor. The sliding member is disposed on the side wall of the first fixing frame, and the focusing O-ring is sleeved on the side wall of the focusing lens. The detection assembly includes a flange head, an optical fiber interface, a detection plate, and a camera. The flange head is connected to the explosion-proof assembly, the optical fiber interface is located on the flange head, the detection plate is located on the light-emitting side of the focusing system, and the camera is located on the opposite side of the detection plate and fixed on the explosion-proof assembly. The control component includes a processor, which is fixed to the housing.

2. The laser coupler device with integrated collimation and focusing linkage adjustment according to claim 1, characterized in that, The collimating sleeve has arc-shaped guide grooves through its two opposite sides. The collimating inner cylinder has round holes at positions corresponding to the arc-shaped guide grooves. The guide post passes through the arc-shaped guide grooves and is fixed to the corresponding round holes.

3. The laser coupler device with integrated collimation and focusing linkage adjustment according to claim 2, characterized in that, The linkage gear is driven by the collimating inner cylinder, the output end of the first motor is driven by the linkage gear, and the collimating mirror is disposed inside the collimating inner cylinder.

4. The laser coupler device with integrated collimation and focusing linkage adjustment according to claim 3, characterized in that, The inner wall of the collimation sleeve is provided with an O-ring groove, and a collimation O-ring is also provided in the O-ring groove. The collimation sleeve is provided with a set screw that penetrates the collimation sleeve and abuts against the outer wall of the collimation inner cylinder. The collimation sleeve is also provided with a wing that is fixedly connected to the outer shell.

5. The laser coupler device with integrated collimation and focusing linkage adjustment according to claim 4, characterized in that, The focusing lens is disposed inside the inner focusing cylinder, the inner focusing cylinder is sleeved inside the middle focusing cylinder, and the middle focusing cylinder is sleeved inside the outer focusing cylinder.

6. The laser coupler device with integrated collimation and focusing linkage adjustment according to claim 5, characterized in that, Both the first and second elastic movable components are U-shaped structures, and the first and second elastic movable components are arranged perpendicular to each other. The focusing outer cylinder passes through the first elastic movable component, the second elastic movable component, and the first fixed frame and is fixedly connected to the first fixed frame. The third motor is driven by the first elastic movable component through the second lead screw, and the fourth motor is driven by the second elastic movable component through the third lead screw.

7. The laser coupler device with integrated collimation and focusing linkage adjustment according to claim 6, characterized in that, The second fixing bracket is fixed to the bottom wall of the outer shell. The second fixing bracket is provided with a tongue. The first fixing bracket is fixedly connected to the sliding member. The sliding member is provided with a sliding groove that cooperates with the tongue.

8. The laser coupler device with integrated collimation and focusing linkage adjustment according to claim 7, characterized in that, The sliding member is provided with a guide hole, the first lead screw passes through the guide hole, and the output end of the second motor is connected to the first lead screw for transmission.

9. The laser coupler device with integrated collimation and focusing linkage adjustment according to claim 8, characterized in that, The detection plate is a metal plate, and a circular groove is provided on the detection plate.

10. A laser coupler system integrating collimation and focusing linkage adjustment, characterized in that, A laser coupler device for realizing the integrated collimation and focusing linkage adjustment as described in any one of claims 1 to 9, comprising: The processor is electrically connected to the camera and the first motor, the second motor, the third motor and the fourth motor respectively; The processor is configured to control at least one of the first motor, the second motor, the third motor, and the fourth motor based on the light spot image on the detection board surface captured by the camera.

Images