CN217087130U

CN217087130U - Laser tail pipe and laser

Info

Publication number: CN217087130U
Application number: CN202123223049.8U
Authority: CN
Inventors: 杨雄; 胡慧璇; 吴迪
Original assignee: Wuhan Raycus Fiber Laser Technologies Co Ltd
Current assignee: Wuhan Raycus Fiber Laser Technologies Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-07-29
Anticipated expiration: 2031-12-21

Abstract

The utility model belongs to the technical field of the laser instrument, a laser tail pipe and laser instrument is disclosed, the laser tail pipe includes: a tailpipe housing having a mounting cavity therein; a slider slidably disposed in the mounting cavity, the slider configured to secure an optical fiber; one end of the elastic piece in the axial direction abuts against the sliding piece, and the elastic piece is always in a contraction state. This laser tail pipe, through the fixed optic fibre of slider, the slider can slide with the installation cavity, and the elasticity of elastic component promotes the slider moreover, eliminates the axial pressure that optic fibre received for optic fibre receives the thrust of spring all the time and is in the state of tightening under the collimation system's is fixed, reduces the risk that optic fibre burns out.

Description

Laser tail pipe and laser

Technical Field

The utility model belongs to the technical field of the laser instrument, especially, relate to a laser instrument tail pipe and laser instrument.

Background

In the manufacturing process of the semiconductor laser, the optical fiber needs to be fixed by dispensing, and the number of the fixed points of the optical fiber is generally two, one is at the position of the collimation system, and the other is at the tail pipe. The glue curing needs to heat the semiconductor laser to more than 100 ℃.

The tail pipe is made of aluminum or copper generally, the optical fiber is made of glass mainly, the difference of expansion coefficients of the aluminum and the copper exceeds 4 times, and in the process of cooling the glue to the normal temperature after solidification, the optical fiber is subjected to larger axial pressure due to the difference of the expansion coefficients of the aluminum and the copper, the tensile strength of the optical fiber is not resistant to pressure, and the optical fiber is easy to lose efficacy and burn.

Therefore, a laser tail tube and a laser are needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a laser tail pipe and laser instrument to the point is glued fixedly between the adoption tail pipe that exists among the solution prior art and the optic fibre, makes optic fibre receive great axial pressure and the easy problem that burns out that became invalid.

To achieve the above object, the present application provides a laser tail tube comprising:

a tailpipe housing having a mounting cavity therein;

a slider slidably disposed in the mounting cavity, the slider configured to secure an optical fiber;

and one end of the elastic piece in the axis direction is abutted to the sliding piece, and the elastic piece is always in a contracted state.

As a preferred technical solution of the laser tail tube, the sliding member has a through hole formed along an extending direction of the optical fiber, and the optical fiber is inserted into the through hole and connected to the sliding member.

As a preferable technical solution of the laser tail tube, the optical fiber is bonded to the sliding member.

As a preferred technical scheme of the laser tail pipe, an annular groove is formed in the sliding part, a sealing ring is arranged in the annular groove, and the sealing ring abuts against the wall of the installation cavity.

As a preferred technical scheme of the laser tail pipe, the laser tail pipe further comprises a fixing piece, the fixing piece is installed in the installation cavity, and the other end of the elastic piece in the axial direction abuts against the fixing piece.

As a preferred technical scheme of the tail tube of the laser, the fixing piece is provided with a through hole for the optical fiber to pass through, and the elastic piece is sleeved on the fixing piece.

As a preferred technical scheme of the laser tail tube, the fixing piece is detachably arranged in the installation cavity.

As a preferred technical scheme of the laser tail tube, the tail tube shell comprises a mounting lug plate, and a mounting hole for a fastener to pass through is formed in the mounting lug plate.

The application also provides a laser, including the laser tail pipe in any above-mentioned scheme.

Compared with the prior art, the utility model discloses following beneficial effect has:

this laser tail pipe, through the fixed optic fibre of slider, the slider can slide with the installation cavity, and the elasticity of elastic component promotes the slider moreover, eliminates the axial pressure that optic fibre received for optic fibre receives the thrust of spring all the time and is in the state of tightening under the collimation system's is fixed, reduces the risk that optic fibre burns out.

Drawings

Fig. 1 is a schematic structural diagram of a laser tail tube provided in this embodiment;

fig. 2 is a schematic cross-sectional view of a laser tail pipe provided in this embodiment.

Wherein:

1. a tailpipe housing; 11. a mounting cavity; 12. mounting an ear plate; 121. mounting holes; 2. a slider; 3. an elastic member; 4. a fixing member; 5. a seal ring; 6. an optical fiber.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the present embodiment provides a laser tail pipe including a tail pipe housing 1, a sliding member 2, and an elastic member 3. Wherein, tail pipe shell 1 has installation cavity 11 therein. The slider 2 is slidably disposed in the mounting cavity 11, and the slider 2 is used to fix the optical fiber 6. One end of the elastic element 3 in the axial direction is abutted against the sliding element 2, and the elastic element 3 is always in a contracted state.

It can be understood that, through the fixed optic fibre 6 of slider 2, slider 2 can slide with installation cavity 11, and the elasticity of elastic component 3 promotes slider 2 moreover, can eliminate the axial pressure that optic fibre 6 received for optic fibre 6 receives the thrust of elastic component 3 all the time and is in the state of tightening under the fixed of collimation system, reduces the risk that optic fibre 6 burns out. In addition, when the temperature of the laser is reduced, the movement of the elastic piece 3 and the sliding piece 2 can compensate the shrinkage of the sliding piece 2 and the tail pipe shell 3, so that the stressed state of the optical fiber 6 is kept unchanged.

Referring to fig. 1, the tail pipe housing 1 includes a mounting lug 12, and a mounting hole 121 for a fastener to pass through is formed in the mounting lug 12. By forming the mounting hole 121, the tail pipe housing 1 can be conveniently mounted on the laser base through a fastener.

As shown in fig. 2, the sliding member 2 has a through hole opened along the extending direction of the optical fiber 6, and the optical fiber 6 is inserted into the through hole and connected to the sliding member 2. Specifically, in the present embodiment, the optical fiber 6 is bonded to the slider 2. That is, the optical fiber 6 is fixed in the through hole by dispensing.

Furthermore, an annular groove is formed in the sliding part 2, a sealing ring 5 is arranged in the annular groove, and the sealing ring 5 abuts against the wall of the mounting cavity 11. Specifically, in the present embodiment, one seal ring 5 is provided. Of course in other embodiments two or more sealing rings 5 may be provided, and two or more corresponding annular grooves, but it is contemplated that a greater number of sealing rings 5 will increase the friction between the slider 2 and the wall of the mounting cavity 11, affecting the movement of the slider 2.

Specifically, in the present embodiment, the slider 2 is partially located in the mounting cavity, and the other portion is located in the mounting cavity 11. The part of the slider 2 located in the mounting cavity 11 has the above-mentioned annular groove.

Referring to fig. 2 again, the laser tail tube further includes a fixing member 4, the fixing member 4 is installed in the installation cavity 11, and the other end of the elastic member 3 in the axial direction abuts against the fixing member 4. Specifically, in the present embodiment, the fixing member 4 is provided with a through hole for the optical fiber 6 to pass through, and the elastic member 3 is sleeved on the fixing member 4.

Further, the fixing member 4 is detachably mounted in the mounting cavity 11. In the present embodiment, the elastic member 3 is preferably a spring, and it is arranged such that the urging force to the slider 2 can be changed by replacing the spring with a different wire diameter.

The fixing piece 4 can be limited in the installation cavity 11 through the pin, specifically, the tail pipe shell 1 is provided with a pin hole, the corresponding fixing piece 4 is provided with an inserting hole, and when the pin hole is aligned with the inserting hole, the pin is inserted into the pin hole and the inserting hole, so that the fixing piece 4 is limited and fixed. It is of course also possible to make the fixing piece 4 detachable by screwing the fixing piece 4 and the tail pipe housing 1 and thus to be able to screw the fixing piece 4 to increase or decrease the pushing force of the spring against the slider 2.

The embodiment also provides a laser, which comprises the laser tail pipe.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A laser tailpipe, comprising:

a tail pipe housing (1) having a mounting chamber (11) therein;

a slider (2) slidably arranged in the mounting cavity (11), the slider (2) being configured to fix the optical fiber (6);

the elastic piece (3), one end of the elastic piece (3) in the axial direction is abutted to the sliding piece (2), and the elastic piece (3) is always in a contraction state.

2. The laser tail tube according to claim 1, wherein the sliding member (2) has a through hole opened along an extending direction of the optical fiber (6), and the optical fiber (6) is inserted into the through hole and connected to the sliding member (2).

3. Laser tailpipe according to claim 2, characterized in that the optical fiber (6) is glued to the sliding member (2).

4. The laser tail pipe according to claim 1, wherein the sliding member (2) is provided with an annular groove, a sealing ring (5) is arranged in the annular groove, and the sealing ring (5) is pressed against the wall of the installation cavity (11).

5. The laser tail pipe according to claim 1, further comprising a fixing member (4), wherein the fixing member (4) is installed in the installation cavity (11), and the other end of the elastic member (3) in the axial direction abuts against the fixing member (4).

6. The tail tube of the laser device according to claim 5, wherein the fixing member (4) is provided with a through hole for the optical fiber (6) to pass through, and the elastic member (3) is sleeved on the fixing member (4).

7. A laser tailpipe according to claim 5, characterized in that the fixing member (4) is detachably mounted in the mounting cavity (11).

8. The laser tail pipe according to claim 1, wherein the tail pipe casing (1) comprises a mounting ear plate (12), and the mounting ear plate (12) is provided with a mounting hole (121) for a fastener to pass through.

9. A laser comprising a laser tailpipe according to any of claims 1-8.