Optical splitter laser coupling adjusting mechanism

By designing a laser coupling adjustment mechanism for the beam splitter and utilizing the linkage adjustment of the X, Y, and Z axis components, the problem of inaccurate laser coupling in the optical fiber was solved, achieving stable laser output and efficient processing.

CN223981313UActive Publication Date: 2026-03-10UNITED WINNERS LASER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing time-division fiber lasers are difficult to couple accurately into the fiber during use, resulting in unstable laser output and affecting laser processing effects.

Method used

A laser coupling adjustment mechanism for a beam splitter was designed, including an X-axis assembly, a Y-axis assembly, a Z-axis assembly, and a coupling body. Through the cooperation of a sliding structure and a micrometer head, the three-axis linkage adjustment is realized to ensure that the laser focus is accurately coupled into the optical fiber.

Benefits of technology

It enables precise adjustment of laser output power and spot shape, ensuring stable laser output and improving the effect of laser processing.

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Abstract

The utility model provides an optical splitter laser coupling adjusting mechanism. The optical splitter laser coupling adjusting mechanism comprises an X-axis assembly, a Y-axis assembly, a Z-axis assembly and a coupling body which are sequentially arranged in the Z-axis direction. The X-axis assembly is provided with a first connecting piece, and the X-axis assembly can move relative to the Y-axis assembly in the X-axis direction; the Y-axis assembly is provided with a second connecting piece, and the Y-axis assembly can move relative to the Z-axis assembly in the Y-axis direction; the Z-axis assembly can move relative to the coupling body in the Z-axis direction. The two side walls of the Z-axis assembly are provided with a first micrometer head and a second micrometer head respectively. The first connecting piece abuts against the first micrometer head in the X-axis direction. The second connecting piece abuts against the second micrometer head in the Y-axis direction. The coupling body is provided with an optical fiber chuck. According to the utility model, the relative position of the laser and the optical fiber can be adjusted, the focus of the laser can be accurately coupled into the optical fiber, the adjustment precision is high, the requirement can be met, the laser can be stably output, and the laser processing effect is good.
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Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, and in particular to a laser coupling adjustment mechanism for a beam splitter. Background Technology

[0002] Laser welding machines, commonly using infrared lasers, are widely used in various industries for welding metals and non-metals. With increasing market demand, a time-division fiber laser has emerged to reduce equipment purchase costs, site space costs, and time costs.

[0003] Time-division fiber lasers maximize fiber laser performance. Through time-division mode, a single laser can be connected to two different operating fibers, providing a laser source for multiple workstations and units on the production line without requiring the replacement of the operating head or the removal of the operating fiber from one robot to another. In time-division mode, only one workstation can use the laser source at any given time.

[0004] However, existing time-division fiber lasers are difficult to couple accurately into the fiber during use, and the laser output is unstable, resulting in poor laser processing effects. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a laser coupling adjustment mechanism for a beam splitter, which can adjust the relative position of the laser and the optical fiber so that the laser focus can be accurately coupled into the optical fiber, thereby enabling the laser output power and spot shape and size to meet the design or required standards. It has high adjustment precision, can meet the requirements, can output the laser stably, and has good laser processing effect.

[0006] The embodiments of this utility model are achieved through the following technical solutions:

[0007] A beam splitter laser coupling adjustment mechanism, comprising:

[0008] The X-axis component, Y-axis component, Z-axis component, and coupling body are arranged sequentially along the Z-axis direction;

[0009] The X-axis assembly is provided with a first connector, and the X-axis assembly can move relative to the Y-axis assembly in the X-axis direction;

[0010] The Y-axis assembly is provided with a second connector, and the Y-axis assembly can move relative to the Z-axis assembly in the Y-axis direction;

[0011] The Z-axis assembly can move relative to the coupling body in the Z-axis direction, and the two side walls of the Z-axis assembly are respectively provided with a first differential head and a second differential head;

[0012] The first connector abuts against the first differential head in the X-axis direction;

[0013] The second connector abuts against the second differential head in the Y-axis direction;

[0014] The coupling body is equipped with an optical fiber clamp.

[0015] According to a preferred embodiment, the Y-axis assembly is provided with a first sliding structure connected thereto, and the X-axis assembly is slidably engaged with the first sliding structure.

[0016] The Z-axis assembly is provided with a second sliding structure connected thereto, and the Y-axis assembly is slidably engaged with the second sliding structure.

[0017] The coupling body is provided with a third sliding structure, and the Z-axis component slides in conjunction with the third sliding structure.

[0018] According to a preferred embodiment, a first spring is connected between the X-axis assembly and the Y-axis assembly;

[0019] A second spring is connected between the Y-axis assembly and the Z-axis assembly;

[0020] A third spring connects the Z-axis assembly to the coupling body.

[0021] According to a preferred embodiment, the X-axis assembly includes an X-axis fixing body and an X-axis coupling mirror unit, wherein the coupling mirror unit and the first connector are both disposed on the X-axis fixing body.

[0022] The X-axis coupling mirror unit includes a mirror barrel with coupling lenses and a water-cooling connector for cooling the X-axis coupling mirror surface.

[0023] According to a preferred embodiment, the Y-axis assembly includes a Y-axis fixing body;

[0024] The first sliding structure and the second connecting member are both disposed on the Y-axis fixing body, and the Y-axis fixing body has a Y-axis channel.

[0025] According to a preferred embodiment, the Z-axis assembly includes a Z-axis fixing body;

[0026] The first differential head, the second differential head, and the second sliding structure are all disposed on the Z-axis fixed body, and the Z-axis fixed body has a Z-axis channel.

[0027] According to a preferred embodiment, the coupling body is provided with a ball-head plunger for adjusting the displacement of the Z-axis fixed body.

[0028] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0029] This utility model is equipped with an X-axis assembly, a Y-axis assembly, a Z-axis assembly, and a coupling body, which can adjust the relative position of the laser and the optical fiber, so that the laser focus can be accurately coupled into the optical fiber, thereby enabling the laser output power and spot shape and size to meet the design or requirement standards. It has high adjustment precision, can meet the requirements, can output the laser stably, and has good laser processing effect. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of a beam splitter laser coupling adjustment mechanism provided for an embodiment of this utility model;

[0032] Figure 2 A schematic diagram of the coupling body provided in an embodiment of this utility model;

[0033] Figure 3 A first exploded structural diagram of a beam splitter laser coupling adjustment mechanism provided in an embodiment of this utility model;

[0034] Figure 4 A second exploded view of a laser coupling adjustment mechanism for a beam splitter provided in an embodiment of this utility model;

[0035] Figure 5 This is a second exploded view of a laser coupling adjustment mechanism for a beam splitter provided in an embodiment of the present invention.

[0036] Icons: 1. X-axis fixed body; 2. Lens barrel; 3. Water-cooled connector; 4. Y-axis fixed body; 5. Z-axis fixed body; 6. First differential head; 7. Second differential head; 8. First connector; 9. Second connector; 10. First sliding structure; 11. Second sliding structure; 12. Third sliding structure; 13. Coupling body; 14. Fiber optic clamp; 15. Third spring; 16. Ball plunger. Detailed Implementation

[0037] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0038] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0040] Example

[0041] See reference Figures 1 to 5 A laser coupling adjustment mechanism for a beam splitter includes: an X-axis assembly, a Y-axis assembly, a Z-axis assembly, and a coupling body 13 arranged sequentially along the Z-axis direction; the X-axis assembly is provided with a first connector 8, and the X-axis assembly can move relative to the Y-axis assembly in the X-axis direction; the Y-axis assembly is provided with a second connector 9, and the Y-axis assembly can move relative to the Z-axis assembly in the Y-axis direction; the Z-axis assembly can move relative to the coupling body 13 in the Z-axis direction, and a first differential head 6 and a second differential head 7 are respectively provided on the two side walls of the Z-axis assembly; the first connector 8 abuts against the first differential head 6 in the X-axis direction; the second connector 9 abuts against the second differential head 7 in the Y-axis direction; and the coupling body 13 is provided with an optical fiber clamp 14.

[0042] Preferably, the Y-axis assembly is provided with a first sliding structure 10 connected thereto, and the X-axis assembly is slidably engaged with the first sliding structure 10;

[0043] The Z-axis assembly is provided with a second sliding structure 11 connected thereto, and the Y-axis assembly slides in cooperation with the second sliding structure 11.

[0044] The coupling body 13 is provided with a third sliding structure 12 connected to it, and the Z-axis component slides in conjunction with the third sliding structure 12.

[0045] Preferably, a first spring connects the X-axis assembly and the Y-axis assembly;

[0046] A second spring connects the Y-axis assembly and the Z-axis assembly;

[0047] A third spring 15 connects the Z-axis assembly to the coupling body 13.

[0048] Preferably, the X-axis assembly includes an X-axis fixing body 1 and an X-axis coupling mirror unit, wherein the coupling mirror unit and the first connector 8 are both disposed on the X-axis fixing body 1;

[0049] The X-axis coupling mirror unit includes a mirror barrel 2 with coupling lenses and a water-cooling connector 3 for cooling the X-axis coupling mirror surface.

[0050] Preferably, the Y-axis assembly includes a Y-axis fixing body 4;

[0051] The first sliding structure 10 and the second connecting member 9 are both disposed on the Y-axis fixed body 4, and the Y-axis fixed body 4 has a Y-axis channel.

[0052] Preferably, the Z-axis assembly includes a Z-axis fixing body 5;

[0053] The first differential head 6, the second differential head 7, and the second sliding structure 11 are all mounted on the Z-axis fixed body 5, and the Z-axis fixed body 5 has a Z-axis channel.

[0054] Preferably, the coupling body 13 is provided with a ball-head plunger 16 for adjusting the displacement of the Z-axis fixed body 5.

[0055] The working principle of this utility model:

[0056] In this embodiment, the X-axis direction, Y-axis direction, and Z-axis direction can all be referenced. Figure 1 The X-axis fixing body 1 can adjust the lens barrel 2 along the X-axis direction; the Y-axis fixing body 4 can adjust the position of the X-axis fixing body 1 and the lens barrel 2 along the Y-axis direction; and the Z-axis fixing body 5 can adjust the position of the Y-axis fixing body 4, the X-axis fixing body 1, and the lens barrel 2 along the Z-axis direction. Figure 1 The vertical height can be adjusted up and down.

[0057] Both the first differential head 6 and the second differential head 7 can be selected as 90-degree differential heads. Both the first differential head 6 and the second differential head 7 can swing and rotate to change direction. In addition, both the first differential head 6 and the second differential head 7 can provide directional force. The first differential head 6 can provide a reverse force in the X-axis direction to the X-axis fixed body 1 to adjust the position of the X-axis fixed body 1 in the X-axis direction. The first differential head 6 can provide a reverse force in the Y-axis direction to the Y-axis fixed body 4 to adjust the position of the Y-axis fixed body 4 in the Y-axis direction. The ball plunger 16 is used to provide a reverse force in the Z-axis direction to the Z-axis fixed body 5. In this embodiment, the direction of the first connecting member 8 toward the first differential head 6 is the positive X-axis direction, that is, the direction of the reverse force provided by the first differential head 6 is opposite to the positive X-axis direction. The direction of the second connector 9 toward the second differential head 7 is the positive Y-axis direction, meaning that the direction of the reverse force provided by the second differential head 7 is opposite to the positive Y-axis direction. Similarly, the direction of the Z-axis fixed body 5 toward the coupling body 13 is the positive Z-axis direction, and the direction of the reverse force provided by the ball head plunger 16 is opposite to the positive Z-axis direction.

[0058] In this embodiment, the first spring is disposed between the X-axis fixed body 1 and the Y-axis fixed body 4, that is, both ends of the first spring are connected to the X-axis fixed body 1 and the Y-axis fixed body 4 respectively, to provide elastic force to the X-axis fixed body 1 in the X-axis direction, limit the maximum range of the X-axis fixed body 1 and ensure the reset of the X-axis fixed body 1 in the X-axis direction. The first differential head 6 can work with the first spring to adjust the position of the X-axis fixed body 1 in the X-axis direction. In this embodiment, the second spring is disposed between the Y-axis fixed body 4 and the Z-axis fixed body 5, that is, both ends of the second spring are connected to the Y-axis fixed body 4 and the Z-axis fixed body 5 respectively, to provide elastic force to the Y-axis fixed body 4 in the Y-axis direction, limit the maximum displacement range of the Y-axis fixed body 4 and ensure the reset of the Y-axis fixed body 4 in the Y-axis direction. The second differential head 7 can work with the second spring to adjust the position of the Y-axis fixed body 4 in the Y-axis direction. Similarly, the two ends of the third spring 15 are connected to the Z-axis fixing body 5 and the coupling body 13 respectively, so as to provide the Z-axis fixing body 5 with elastic force in the Z-axis direction, limit the maximum displacement range of the Z-axis fixing body 5 and ensure the reset of the Z-axis fixing body 5 in the Z-axis direction. The ball plunger 16 can work with the third spring 15 to adjust the position of the Z-axis fixing body 5 in the Z-axis direction.

[0059] The X-axis fixed body 1 is equipped with a lens barrel 2 and a water-cooling connector 3. The coupling lens is fixed to the lens barrel 2 by a clamping ring. Cooling water passes through the water-cooling connector 3 and the lens barrel 2 to carry away the heat of the coupling lens through heat conduction. The Y-axis and Z-axis channels allow the lens barrel 2 to pass through or be matched smoothly for installation, ensuring stable laser output. This application achieves X, Y, and Z-axis linkage adjustment through the X-axis assembly, Y-axis assembly, Z-axis assembly, and coupling body 13, enabling the laser to be accurately coupled into the fiber optic clamp 14 (i.e., the laser focus is adjusted in three directions to fall on the fiber end face), thus completing the laser output.

[0060] The first sliding structure 10, the second sliding structure 11, and the third sliding structure 12 can all be selected from crossed roller guides to realize the relative movement of the X-axis fixed body 1, the Y-axis fixed body 4, and the Z-axis fixed body 5, thereby adjusting the laser focus. The ball plunger 16 can horizontally penetrate the coupling body 13 and extend to one side of the Z-axis fixed body 5 to compress the Z-axis fixed body 5 and adjust the Z-axis position of the Z-axis fixed body 5. The ball plunger 16 can be selected from threaded rods or other forms that pass through the coupling body 13, and the ball plunger 16 can be moved horizontally to adjust its position. Specifically, the mirror barrel 2, the Y-axis channel, the Z-axis channel, and the fiber optic clamp 14 can be adjusted to be coaxially arranged, and are not limited to the above situations.

[0061] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A splitter laser coupling adjustment mechanism, characterized by, The application relates to a spectrometer laser coupling adjusting mechanism. The spectrometer laser coupling adjusting mechanism comprises an X-axis assembly, a Y-axis assembly, a Z-axis assembly and a coupling main body which are sequentially arranged along the Z-axis direction. The X-axis assembly is provided with a first connecting piece, and the X-axis assembly can move relative to the Y-axis assembly in the X-axis direction. The Y-axis assembly is provided with a second connecting piece, and the Y-axis assembly can move relative to the Z-axis assembly in the Y-axis direction. The Z-axis assembly can move relative to the coupling main body in the Z-axis direction, and the two side walls of the Z-axis assembly are respectively provided with a first micro-differentiation head and a second micro-differentiation head. The first connecting piece abuts against the first micro-differentiation head in the X-axis direction. The second connecting piece abuts against the second micro-differentiation head in the Y-axis direction. The coupling main body is provided with a fiber clamping head.

2. The spectrometer laser coupling adjusting mechanism according to claim 1, wherein the Y-axis assembly is provided with a first sliding structure, the X-axis assembly is in sliding cooperation with the first sliding structure. The Z-axis assembly is provided with a second sliding structure, the Y-axis assembly is in sliding cooperation with the second sliding structure. The coupling main body is provided with a third sliding structure, and the Z-axis assembly is in sliding cooperation with the third sliding structure.

3. The spectrometer laser coupling adjusting mechanism according to claim 2, wherein a first spring is connected between the X-axis assembly and the Y-axis assembly. A second spring is connected between the Y-axis assembly and the Z-axis assembly. A third spring is connected between the Z-axis assembly and the coupling main body.

4. The spectrometer laser coupling adjusting mechanism according to claim 3, wherein the X-axis assembly comprises an X-axis fixed main body and an X-axis coupling mirror unit, and the coupling mirror unit and the first connecting piece are arranged on the X-axis fixed main body. The X-axis coupling mirror unit comprises a lens barrel provided with a coupling mirror and a water cooling connector for cooling the X-axis coupling mirror.

5. The spectrometer laser coupling adjusting mechanism according to claim 4, wherein the Y-axis assembly comprises a Y-axis fixed main body. The first sliding structure and the second connecting piece are arranged on the Y-axis fixed main body, and the Y-axis fixed main body is provided with a Y-axis channel.

6. The spectrometer laser coupling adjusting mechanism according to claim 5, wherein the Z-axis assembly comprises a Z-axis fixed main body. The first micro-differentiation head, the second micro-differentiation head and the second sliding structure are arranged on the Z-axis fixed main body, and the Z-axis fixed main body is provided with a Z-axis channel.

7. The spectrometer laser coupling adjusting mechanism according to claim 6, wherein the coupling main body is provided with a ball plunger for adjusting the displacement of the Z-axis fixed main body. ​ ​ ​ ​ ​ ​