Optical fiber sensitive ring module laser welding fixing mechanism

Abstract

The utility model provides an optical fiber sensitive ring module laser welding fixing mechanism, which comprises a stand column, a rotating shaft, a fixing arm and a presser foot, the end part of the rotating shaft is rotatably arranged on the stand column, the circumferential side of the rotating shaft is provided with a full circle gear, the two ends of the full circle gear are provided with annular grooves, and the fixing arm is provided with a mounting hole for the rotating shaft to penetrate through. A semicircular rack is arranged in the mounting hole, the full-circle gear is inserted into the semicircular rack, the presser foot is arranged at the end, away from the mounting hole, of the fixing arm, a first screw is arranged on the side face of the stand column, a second screw is arranged on the peripheral side of the rotating shaft, and a double-hook spring is connected between the first screw and the second screw. The double-hook spring is used for driving the fixed arm to rotate in the direction towards the presser foot, and has the advantages of being reliable and stable in welding machining and easy and convenient to disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a laser welding fixing mechanism for an optical fiber sensitive ring module. Background Art

[0002] The fiber-optic sensitive loop coil is the most critical sensitive component in a fiber-optic gyroscope. As gyroscope precision requirements increase, the packaging and protective measures for the fiber-optic sensitive loop coil must meet even higher standards. During the packaging process, a key step is to use laser welding to close the gap between the ring support and the ring support cover. The results of laser welding directly affect the secure fit between the ring support and the ring support cover, thereby changing the symmetry and magnetic shielding performance of the entire package. The stability and clamping force of the laser welding fixture can affect the fixation of the weldment, thereby slightly changing the weld shape during the welding process and affecting the processing quality of the precision device.

[0003] In related technology, one end of the rotating shaft of the laser welding fixture is inserted into a bearing on one side. The other end of the shaft first passes through the circular slots of two fixed arms and then passes through the other bearing on the other side. Finally, the fixed arms are fixed to the rotating shaft with set screws. The fixed arms are equipped with universal ball joints, which cooperate with the electric claws on the turntable to clamp the weldment.

[0004] With regard to the above-mentioned related technologies, the fixed arm is an integral structure formed in one piece. During the disassembly process of the fixed arm, the fixing screws, rotating shaft, etc. need to be removed one by one, and then the fixed arm needs to be slid out to both ends of the rotating shaft before the fixed arm can be removed from the rotating shaft, which makes the disassembly of the fixed arm difficult; since the friction coefficient of the circular groove is small, the two fixed arms are prone to different degrees of force rotation, which leads to dislocation; the universal ball of the pressure foot has a small force area on the weldment and a large pressure per unit area. The weldment with softer material may be deformed. Therefore, there are problems such as inconvenient disassembly of the fixed arm and insufficient reliability and stability of the welding process. Utility Model Content

[0005] The purpose of the utility model is to provide a laser welding fixing mechanism for an optical fiber sensitive ring module to solve the problems of inconvenient disassembly of a welding fixing arm and insufficient reliability and stability of welding processing.

[0006] In order to achieve the above objectives, the utility model adopts the following technical solutions for a laser welding fixing mechanism of a fiber optic sensitive ring module:

[0007] A laser welding fixing mechanism for an optical fiber sensitive ring module comprises a column, a rotating shaft, a fixed arm and a pressure foot, the end of the rotating shaft is rotatably set on the column, a full-circle gear is provided on the circumference of the rotating shaft, annular grooves are provided at both ends of the full-circle gear, a mounting hole for the rotating shaft to pass through is provided on the fixed arm, a semicircular rack is provided in the mounting hole, the full-circle gear is plugged into the semicircular rack, the pressure foot is provided at one end of the fixed arm away from the mounting hole, a first screw is provided on the side of the column, a second screw is provided on the circumference of the rotating shaft, a double-hook spring is connected between the first screw and the second screw, and the double-hook spring is used to drive the fixed arm to rotate in a direction toward the pressure foot.

[0008] As an optimization of the laser welding fixing mechanism of the optical fiber sensitive ring module, the fixing arm includes a main arm and a separation arm, the separation arm is detachably connected to the main arm, a first semicircular hole is provided on the fixing arm, and a second semicircular hole is provided on the separation arm. The first semicircular hole and the second semicircular hole are spliced to form the mounting hole, and the semicircular rack is provided on the inner wall of the first semicircular hole.

[0009] As an optimization of the laser welding fixing mechanism of the optical fiber sensitive ring module, a rotating rod is provided on the side surface of one end of the separation arm, and the rotating rod is detachably connected to the side surface of the main arm. The separation arm rotates around the rotating rod. A fastener is provided on the top surface of the other end of the separation arm, and the fastener is detachably connected to the top surface of the main arm.

[0010] As an optimization of the laser welding fixing mechanism of the optical fiber sensitive ring module, the presser foot includes a connecting component and a fixing sleeve. The connecting component is arranged below one end of the fixing arm, and the fixing sleeve is arranged at the end of the connecting component away from the fixing arm. A roller is embedded in the fixing sleeve, and the roller is used to abut the surface of the weldment.

[0011] As an optimization of the laser welding fixing mechanism of the optical fiber sensitive ring module, the connecting assembly in right 5 includes a positioning screw, an intermediate ring and a support spring, the positioning screw is passed through the fixed arm, the inner ring of the intermediate ring is threadedly connected to the end of the positioning screw, the outer ring of the intermediate ring is embedded in the inner wall of the fixing sleeve, the support spring is sleeved on the circumference of the positioning screw, one end of the support spring abuts against the side of the fixed arm, and the other end of the support spring abuts against the intermediate ring.

[0012] As an optimization of the laser welding fixing mechanism of the optical fiber sensitive ring module, a pressure-adjusting spring and a positioning part are also provided in the fixing sleeve. The pressure-adjusting spring is provided on the side of the intermediate ring away from the supporting spring, and the positioning part is provided on the end of the pressure-adjusting spring away from the intermediate ring. The pressure-adjusting spring drives the positioning part to abut against the circumference of the roller.

[0013] As an optimization of the laser welding fixing mechanism of the optical fiber sensitive ring module, a buckle is provided on the circumferential side of the fixing sleeve, and a plurality of square holes are distributed along the circumference of the fixing sleeve. One end of the buckle is fixedly connected to one of the square holes; the end face of the fixing arm is provided with a T-shaped limit groove along the axial direction of the fixing sleeve, and the other end of the buckle is embedded in the T-shaped limit groove and slides.

[0014] As an optimization of the laser welding fixing mechanism of the optical fiber sensitive ring module, the inner wall of the fixing sleeve is provided with a vertical groove along the axial direction of the fixing sleeve, and the side wall of the roller is provided with a convex shaft, which is slidably connected to the inner wall of the vertical groove.

[0015] As an optimization of the laser welding fixing mechanism of the optical fiber sensitive ring module, the inner wall of the fixing sleeve is provided with a transverse groove along the circumference of the fixing sleeve, one end of the transverse groove is connected to the vertical groove, and the side wall of the intermediate ring is provided with a sliding part, which is slidably connected to the inner wall of the transverse groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) The meshing of the full-circle gear on the circumference of the rotating shaft and the semicircular rack on the fixed arm not only keeps the radial angles of the two fixed arms and the rotating shaft the same, thus improving the flatness of the weldment clamped by the fixing mechanism, but also prevents relative sliding between the fixed arms and the rotating shaft in the event of long-term use, thereby improving the reliability and stability of the welding process;

[0018] (2) The modular design of the fixed arm makes it easy to assemble and disassemble the main arm and the separation arm. The annular groove allows the fixed arm to be moved out of the area of the full-circle gear on the rotating shaft, reducing the difficulty of moving and disassembling the fixed arm and facilitating the assembly, disassembly and maintenance of the fixed arm.

[0019] (3) By using an elastically retractable roller for the presser foot, the force application area of the presser foot is expanded, and the extrusion failure deformation of the weldment is reduced, thereby improving the adaptability range of the laser welding fixing mechanism to the weldment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 This is a schematic diagram of the overall structure of a laser welding fixing mechanism for a fiber optic sensitive ring module according to an embodiment of the present application;

[0022] Figure 2 This is a structural schematic diagram of the fixed arm in the separated state according to an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the explosive components of the presser foot according to an embodiment of the present application;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing sleeve according to an embodiment of the present application.

[0025] In the picture:

[0026] 1. Column; 11. First screw; 12. Double hook spring;

[0027] 2. Rotating shaft; 21. Full-circle gear; 22. Annular groove; 23. Second screw; 24. Rotating handle;

[0028] 3. Fixed arm; 31. Mounting hole; 311. First semicircular hole; 312. Second semicircular hole; 32. Semicircular rack; 33. Main arm; 34. Separation arm; 35. Rotating rod; 36. Fastener; 37. T-shaped limit slot;

[0029] 4. Presser foot;

[0030] 5. Connecting assembly; 51. Positioning screw; 52. Intermediate ring; 521. Sliding portion; 53. Support spring;

[0031] 6. Fixing sleeve; 61. Accommodating groove; 611. Sliding hole; 62. Square hole; 63. Vertical groove; 64. Horizontal groove;

[0032] 7. Roller; 71. Convex shaft;

[0033] 8. Pressure regulating spring;

[0034] 9. Coordination parts;

[0035] 10. Buckle. DETAILED DESCRIPTION

[0036] In order to make the technical solutions and advantages of the present invention clearer, the present invention and its beneficial effects will be described in further detail below in conjunction with specific implementation methods and the accompanying drawings, but the implementation methods of the present invention are not limited thereto.

[0037] In the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0039] The following is combined with Figure 1-4 , further details of this application are given.

[0040] This application provides a laser welding fixing mechanism for a fiber optic sensitive ring module, which adopts the following technical solutions:

[0041] Reference Figure 1 and Figure 2 The fixing mechanism includes a column 1, a rotating shaft 2, a fixed arm 3 and a presser foot 4. The column 1 is a rectangular parallelepiped, and there are two columns 1. A bearing is embedded in the top side of each column 1. The two bearings are arranged opposite to each other, and the ends of the rotating shaft 2 are tightly embedded in the inner ring of the bearing. The circumference of the rotating shaft 2 is integrally formed with a full-circle gear 21. The fixed arm 3 includes two. A mounting hole 31 is opened at one end of the fixed arm 3. A semicircular rack 32 is fixedly connected to the inner wall of the mounting hole 31. The semicircular rack 32 has the same module as the full-circle gear 21. The rotating shaft 2 is passed through the mounting hole 31, and the full-circle gear 21 is inserted into the semicircular rack 32 so that the two fixed arms 3 are mounted on the rotating shaft 2 at the same radial angle. Furthermore, annular grooves 22 are formed at both ends of the full-circle gear 21. By moving the fixed arm 3 along the rotating shaft 2 to the annular grooves 22 on both sides, the semicircular rack 32 in the mounting hole 31 is separated from the full-circle gear 21, making it easier to remove the fixed arm 3. Furthermore, a rotating handle 24 is integrally formed in the middle of the rotating shaft 2, making it easy for the operator to adjust the angle of the rotating shaft 2 relative to the column 1.

[0042] Reference Figure 1 The presser foot 4 is installed at the end of the fixed arm 3 away from the mounting hole 31. The side of the column 1 close to the rotating shaft 2 is fixedly connected with the first screw 11, and the side of the rotating shaft 2 facing away from the first screw 11 is fixedly connected with the second screw 23. A double-hook spring 12 is connected between the first screw 11 and the second screw 23. Under the tensile action of the double-hook spring 12, the second screw 23 moves close to the first screw 11 along the contraction direction of the double-hook spring 12, driving the rotating shaft 2 to rotate along the fixed arm 3 toward the presser foot 4, driving the fixed arm 3 to bring the presser foot 4 close to and abut against the top surface of the weldment, limiting the up and down jumping of the weldment and improving the processing quality of the weldment. During the processing of the weldment, the engagement of the full-circle gear 21 and the semi-circular rack 32 can firmly maintain the radial angle of the two fixed arms 3 relative to the rotating shaft 2, preventing the fixed arms 3 from rotating relative to the rotating shaft 2 under force, so that the pressure feet 4 on the two fixed arms 3 are pressed against the surface of the weldment in the same plane, maintaining the flatness of the weldment and being able to avoid angular deviation during long-term use, thereby improving the reliability and stability of the welding process.

[0043] In the preferred embodiment of this application, refer to Figure 1 and Figure 2 The fixed arm 3 includes a main arm 33 and a separation arm 34. The separation arm 34 is detachably mounted on the main arm 33, and the main arm 33 and the separation arm 34 are combined into a rectangular parallelepiped. A first semicircular hole 311 is provided on the main arm 33, and a second semicircular hole 312 is provided on the separation arm 34. The radius of the first semicircular hole 311 and the second semicircular hole 312 are the same. The first semicircular hole 311 and the second semicircular hole 312 are spliced to form a mounting hole 31, and the semicircular rack 32 is integrally formed on the inner wall of the first semicircular hole 311. The combined design of the main arm 33 and the separation arm 34 makes it easy to directly disassemble and separate the fixed arm 3 from the rotating shaft 2, avoiding the steps of disassembling components such as the rotating shaft 2 and the column 1, reducing the difficulty of moving and disassembling the fixed arm 3, and facilitating the adjustment and maintenance of the fixed arm 3.

[0044] Further, refer to Figure 2 A rotating rod 35 and a fastener 36 are mounted on each side of the separation arm 34. The rotating rod 35 is perpendicular to the fastener 36. Two vertical limiters secure the separation arm 34 and the main arm 33 together, preventing loosening or displacement during welding. Specifically, the rotating rod 35 is mounted along the width of the separation arm 34, and the fastener 36 is mounted along the height of the separation arm 34. The rotating rod 35 and fastener 36 are located at opposite ends of the length of the separation arm 34. In this embodiment, both the rotating rod 35 and fastener 36 are countersunk screws that detachably connect the main arm 33 to the separation arm 34.

[0045] In the preferred embodiment of the present application, referring to Figure 2 、 Figure 3 and Figure 4The presser foot 4 includes a connecting assembly 5 and a fixing sleeve 6. The connecting assembly 5 is installed below one end of the fixed arm 3, and the fixing sleeve 6 is installed at the end of the connecting assembly 5 away from the fixed arm 3. The fixing sleeve 6 is cylindrical and has a rectangular receiving groove 61 formed inside the fixing sleeve 6. A sliding hole 611 is formed at the bottom of the receiving groove 61. A roller 7 is installed horizontally in the receiving groove 61 of the fixing sleeve 6. The shape of the receiving groove 61 matches the cross-section of the roller 7. The circumferential surface of the roller 7 protrudes from the sliding hole 611 and abuts against the surface of the weldment.

[0046] Further, refer to Figure 3 The connection assembly 5 includes a set screw 51, an intermediate ring 52, and a support spring 53. The set screw 51 extends from the top of one end of the fixed arm 3 to the bottom of the fixed arm 3. The end of the set screw 51 located above the fixed arm 3 is a nut, and the middle portion of the set screw 51 is a smooth rod. The end of the set screw 51 located below the fixed arm 3 is integrally formed with an external thread. The inner ring of the intermediate ring 52 is threadedly connected to the end of the set screw 51, and the outer ring of the intermediate ring 52 is embedded in the inner wall of the fixed sleeve 6. In its natural state, the length of the support spring 53 is greater than the maximum distance between the end of the set screw 51 and the side of the fixed arm 3. When the support spring 53 is mounted around the circumference of the set screw 51, one end of the support spring 53 abuts the side of the fixed arm 3, and the other end of the support spring 53 abuts the intermediate ring 52. The support spring 53 is in a compressed state, providing a thrust to move the fixed arm 3 and the intermediate ring 52 away from each other. By rotating the intermediate ring 52 on the positioning screw 51, the distance between the intermediate ring 52 and the fixed arm 3 can be changed, the compression degree of the support spring 53 can be changed, and the preload force of the support spring 53 can be adjusted, thereby adjusting the distance between the fixing sleeve 6 and the fixed arm 3, adapting to the clamping requirements of welds of different thicknesses and different materials, reducing weld damage, and helping to improve the weld yield.

[0047] In the preferred embodiment of the present application, referring to Figure 3A pressure-adjusting spring 8 and a positioning member 9 are also installed within the fixed sleeve 6. The pressure-adjusting spring 8 is installed on the side of the intermediate ring 52 away from the support spring 53. The elastic coefficient of the pressure-adjusting spring 8 is smaller than that of the support spring 53. The positioning member 9 is installed at the end of the pressure-adjusting spring 8 away from the intermediate ring 52. The end of the positioning member 9 away from the pressure-adjusting spring 8 has a smooth arc surface with the same arc as that of the roller 7, and the arc surface abuts the side of the roller 7. During assembly, the pressure-adjusting spring 8 is installed between the intermediate ring 52 and the positioning member 9. The pressure-adjusting spring 8 is in a compressed state. Driven by the pressure-adjusting spring 8, the positioning member 9 keeps the circumference of the roller 7 aligned with the slide hole 611, allowing the roller 7 to slide straight in and out of the slide hole 611. When a hard object appears on the surface of the weld, the kinetic energy of the collision between the roller 7 and the hard object is absorbed by the supporting spring 53 and the pressure-adjusting spring 8. Since the elastic coefficient of the pressure-adjusting spring 8 is smaller than that of the supporting spring 53, the pressure-adjusting spring 8 produces a deformation greater than that of the supporting spring 53, causing the roller 7 to retract into the fixing sleeve 6 first, and then slightly reduce the distance between the fixing sleeve 6 and the fixed arm 3, and raise the position of the fixing sleeve 6 to avoid obstacles. This can not only reduce the damage to the fixing mechanism caused by hard objects, which is beneficial to extending the service life of the roller 7, but also reduce the extrusion of the weld by hard objects, reduce scratches on the surface of the weld, and help protect the quality of the weld and improve the yield rate of the weld.

[0048] In the preferred embodiment of the present application, referring to Figure 3 A buckle 10 is mounted on the circumference of the fixing sleeve 6. One end of the buckle 10 is square, and the other end is elongated. Several square holes 62 are evenly distributed along the circumference of the fixing sleeve 6. One end of the square buckle 10 is snapped into one of the square holes 62. Specifically, in this embodiment, a square hole 62 is provided at each of the four equal points on the circumference of the fixing sleeve 6. When the buckle 10 is snapped into the square holes 62 at different positions on the fixing sleeve 6, the direction of the roller 7 inside the fixing sleeve 6 can be adjusted so that the direction of the roller 7 conforms to the direction of movement of the weldment, making the continuous welding process smoother. A T-shaped limit groove 37 is provided on the end surface of one end of the fixed arm 3 along the axial direction of the fixed sleeve 6. The long end of the clip 10 is inserted into the top of the T-shaped limit groove 37, and then the end of the clip 10 slides inside the belly of the T-shaped limit groove 37, so that the fixed sleeve 6 slides up and down along the axis opposite to the side of the fixed arm 3, reducing the deviation of the presser foot 4 during use, thereby improving the reliability and stability of the presser foot 4 on the weldment, which is beneficial to improving the processing quality of the weldment.

[0049] In the preferred embodiment of the present application, referring to Figure 4 The inner wall of the fixed sleeve 6 is provided with a vertical groove 63 along the axial direction of the fixed sleeve 6, and the side wall of the roller 7 is integrally formed with a convex shaft 71, which is slidably connected to the inner wall of the vertical groove 63. The vertical groove 63 restricts the roller 7 so that the roller 7 can only move up and down in the fixed sleeve 6, preventing the roller 7 from deflecting along the circumferential direction of the fixed sleeve 6, which is beneficial to improving the reliability and stability of the welding process.

[0050] Further, refer to Figure 4 The inner wall of the fixing sleeve 6 is also provided with a transverse groove 64 along the circumference of the fixing sleeve 6. The transverse groove 64 is located at one end of the fixing sleeve 6 close to the fixed arm 3. One end of the transverse groove 64 is connected to the vertical groove 63. A sliding portion 521 is integrally formed on the circumference of the intermediate ring 52. The sliding portion 521 enters from the vertical groove 63 and slides in the transverse groove 64, so that the intermediate ring 52 is embedded and installed inside the fixing sleeve 6.

[0051] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments described above. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present invention fall within the scope of protection of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation on the present invention.

Claims

1. A laser welding fixing mechanism for an optical fiber sensitive ring module, characterized in that: The invention comprises a column (1), a rotating shaft (2), a fixed arm (3) and a presser foot (4); the end of the rotating shaft (2) is rotatably arranged on the column (1); a full-circle gear (21) is arranged on the circumference of the rotating shaft (2); an annular groove (22) is arranged at both ends of the full-circle gear (21); a mounting hole (31) for the rotating shaft (2) to pass through is arranged on the fixed arm (3); a semicircular rack (32) is arranged in the mounting hole (31); the full-circle gear (21) is inserted into the fixing arm (3); The presser foot (4) is connected to the semicircular rack (32), and is arranged at one end of the fixed arm (3) away from the mounting hole (31). A first screw (11) is arranged on the side of the column (1), and a second screw (23) is arranged on the circumferential side of the rotating shaft (2). A double-hook spring (12) is connected between the first screw (11) and the second screw (23), and the double-hook spring (12) is used to drive the fixed arm (3) to rotate in a direction toward the presser foot (4).

2. The laser welding fixing mechanism for a fiber sensitive ring module according to claim 1, characterized in that: The fixed arm (3) comprises a main arm (33) and a separation arm (34); the separation arm (34) is detachably connected to the main arm (33); a first semicircular hole (311) is provided on the fixed arm (3); a second semicircular hole (312) is provided on the separation arm (34); the first semicircular hole (311) and the second semicircular hole (312) are spliced to form the mounting hole (31); and the semicircular rack (32) is provided on the inner wall of the first semicircular hole (311).

3. The laser welding fixing mechanism for a fiber sensitive ring module according to claim 2, characterized in that: A rotating rod (35) is provided on the side surface of one end of the separation arm (34), and the rotating rod (35) is detachably connected to the side surface of the main arm (33). The separation arm (34) rotates around the rotating rod (35). A fastener (36) is provided on the top surface of the other end of the separation arm (34), and the fastener (36) is detachably connected to the top surface of the main arm (33).

4. The laser welding fixing mechanism for a fiber sensitive ring module according to claim 1, characterized in that: The presser foot (4) comprises a connecting component (5) and a fixing sleeve (6); the connecting component (5) is arranged below one end of the fixing arm (3); the fixing sleeve (6) is arranged at one end of the connecting component (5) away from the fixing arm (3); a roller (7) is embedded in the fixing sleeve (6); and the roller (7) is used to abut against the surface of the weldment.

5. The laser welding fixing mechanism for an optical fiber sensitive ring module according to claim 4, characterized in that: The connecting assembly (5) includes a positioning screw (51), an intermediate ring (52) and a support spring (53), wherein the positioning screw (51) is passed through the fixed arm (3), the inner ring of the intermediate ring (52) is threadedly connected to the end of the positioning screw (51), the outer ring of the intermediate ring (52) is embedded in the inner wall of the fixed sleeve (6), and the support spring (53) is sleeved on the circumference of the positioning screw (51), one end of the support spring (53) abuts against the side of the fixed arm (3), and the other end of the support spring (53) abuts against the intermediate ring (52).

6. The laser welding fixing mechanism for an optical fiber sensitive ring module according to claim 5, characterized in that: A pressure regulating spring (8) and a positioning member (9) are also provided in the fixed sleeve (6). The pressure regulating spring (8) is provided on a side of the intermediate ring (52) away from the supporting spring (53). The positioning member (9) is provided on an end of the pressure regulating spring (8) away from the intermediate ring (52). The pressure regulating spring (8) drives the positioning member (9) to abut against the peripheral side of the roller (7).

7. The laser welding fixing mechanism for a fiber sensitive ring module according to claim 4, characterized in that: A buckle (10) is provided on the circumferential side of the fixing sleeve (6), and a plurality of square holes (62) are provided on the circumferential side of the fixing sleeve (6), one end of the buckle (10) is fixedly engaged in one of the square holes (62); a T-shaped limiting groove (37) is provided on the end surface of the fixing arm (3) along the axial direction of the fixing sleeve (6), and the other end of the buckle (10) is embedded in the T-shaped limiting groove (37) and slides.

8. The laser welding fixing mechanism for a fiber sensitive ring module according to claim 5, characterized in that: The inner wall of the fixing sleeve (6) is provided with a vertical groove (63) along the axial direction of the fixing sleeve (6), and the side wall of the roller (7) is provided with a convex shaft (71), and the convex shaft (71) is slidably connected to the inner wall of the vertical groove (63).

9. The laser welding fixing mechanism for an optical fiber sensitive ring module according to claim 8, characterized in that: The inner wall of the fixing sleeve (6) is provided with a transverse groove (64) along the circumference of the fixing sleeve (6), one end of the transverse groove (64) is connected to the vertical groove (63), and the side wall of the intermediate ring (52) is provided with a sliding portion (521), and the sliding portion (521) is slidably connected to the inner wall of the transverse groove (64).

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