A light socket assembly for a light assembly

Abstract

This invention discloses an optical socket assembly for optical components, relating to the field of optical component technology. It includes a metal front cover, a metal pressure block, a ceramic sleeve, a ferrule sleeve, and a plastic extension portion. When the metal front cover and metal pressure block are assembled under stress, the metal front cover can compress the plastic extension portion, causing it to undergo plastic deformation, thereby applying a uniform clamping force to the ceramic sleeve radially inward. In this invention, the mechanical extrusion force during the stamping assembly of the metal front cover and metal pressure block causes uniform radial inward plastic deformation of the plastic extension portion, thus applying a uniform clamping force to the ceramic sleeve. This purely mechanical structure completely avoids the problems of glue aging and volatile pollution. Without improving the machining accuracy of the inner cavity of the metal front cover or increasing manufacturing costs, it stably ensures the coaxiality of the ceramic sleeve and the ferrule hole, effectively reducing optical signal reflection and optimizing return loss indicators.

Description

Technical Field

[0001] This invention relates to the field of optical component technology, specifically to an optical socket assembly for optical components. Background Technology

[0002] In engineering, an optical fiber socket is often referred to as a fiber optic information panel or fiber optic adapter end panel. It is a passive device that is fixedly installed on a wall, desktop, or communication cabinet, providing a standardized physical interface for pluggable connections between optical fibers (or between optical fibers and optical devices). Simply put, it is the final "jack" or "base" of the fiber optic network at the user end.

[0003] Existing optical connectors typically consist of a metal front cover, a metal clamping block, and a ceramic sleeve. During assembly, the ceramic sleeve is pre-installed inside the metal front cover, and the metal front cover and metal clamping block are usually connected by riveting. In optical transmission, the ferrule inside the ceramic sleeve and the ferrule hole in the metal clamping block need to maintain extremely high coaxiality; otherwise, it will cause the fiber end face to tilt or create an air gap during mating, resulting in increased optical signal reflection and deteriorating return loss performance.

[0004] However, in actual engineering, to ensure that the ceramic sleeve can be smoothly installed into the inner cavity of the metal front cover, the inner diameter of the metal front cover cavity must be slightly larger than the outer diameter of the ceramic sleeve, resulting in an assembly gap between the two. During the subsequent riveting process between the metal front cover and the metal pressure block, microscopic deformation or uneven stress distribution in the metal parts can cause changes in the constraint force of the metal front cover cavity on the ceramic sleeve. This causes the ceramic sleeve to deflect or shift slightly within the gap, ultimately leading to a misalignment of the coaxiality between the ceramic sleeve and the insert hole of the metal pressure block.

[0005] To overcome the aforementioned coaxiality problem, existing technologies typically employ methods such as increasing the machining precision of the metal front cover's inner cavity to reduce the mating clearance. However, this significantly increases manufacturing difficulty and cost, reducing production yield. Alternatively, an adhesive process can be used to fix the ceramic sleeve inside the metal front cover, but the adhesive risks aging and loosening over long-term use, and its volatile components can easily contaminate the optical path, similarly failing to reliably guarantee the return loss performance of the optical socket. Therefore, there is an urgent need for an optical socket structure that can ensure the coaxiality of the ceramic sleeve and the ferrule without increasing machining precision or avoiding the use of adhesive. Summary of the Invention

[0006] The purpose of this invention is to provide an optical socket assembly for optical components to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an optical socket assembly for optical components, comprising a metal front cover, a metal pressure block, a ceramic sleeve, and a ferrule sleeve. The ceramic sleeve is disposed within the metal front cover, and the ferrule sleeve is disposed within the metal pressure block with one end engaging with the ceramic sleeve. A plastic extension portion is provided between the metal front cover and the metal pressure block. When the metal front cover and the metal pressure block are subjected to assembly force, the metal front cover can squeeze the plastic extension portion to cause it to undergo plastic deformation, thereby applying a uniform clamping force to the ceramic sleeve on the radially inner side.

[0008] Furthermore, the metal pressure block has a front cover assembly cavity at one end facing the metal front cover, one end of the metal front cover is inserted into the front cover assembly cavity, the plastic extension portion is annular and disposed in the front cover assembly cavity, and the outer diameter of the plastic extension portion increases in the direction away from the ceramic sleeve.

[0009] Furthermore, one end of the metal front cover inserted into the front cover assembly cavity is provided with an extrusion surface. The taper of the extrusion surface is adapted to the peripheral taper of the plastic extension portion. When the metal front cover is pressed into the front cover assembly cavity, the extrusion surface extrudes the plastic extension portion, causing it to plastically extend radially inward.

[0010] Furthermore, the metal pressure block is coaxially provided with a sliding cavity, which communicates with the front cover assembly cavity. The sliding cavity is provided with a coaxial annular portion, and one end face of the plastic extension portion abuts against the end face of the annular portion. The sliding cavity is also provided with a clamping and limiting component that cooperates with the annular portion to fix the plastic extension portion before stamping and to provide clearance space for the extension of the plastic extension portion during stamping.

[0011] Furthermore, the clamping and limiting assembly includes an annular sleeve slidably disposed within the sliding cavity, the central hole of the annular sleeve being a clamping hole, one end of the annular sleeve extending out of the sliding cavity and clamping the outer periphery of the plastic extension portion; the inner wall of the opening of the sliding cavity is provided with a conical section, and when the annular sleeve is located at the conical section, it is squeezed and in an elastic contraction state to hold the plastic extension portion tightly.

[0012] Furthermore, the clamping and limiting assembly also includes a drive spring, which is sleeved on the periphery of the annular portion, and its two ends elastically abut against the end face of the annular sleeve and the inner bottom wall of the sliding cavity, respectively. The annular sleeve has a variable diameter slot on the periphery facing the metal front cover.

[0013] Furthermore, when the metal front cover is pressed into the front cover assembly cavity, the end of the metal front cover pushes the annular sleeve to slide into the sliding cavity and compresses the drive spring. After the annular sleeve is released from the compression of the tapered section, it returns to its initial state, so that a gap is formed between the clamping hole and the annular part for the excess deformation of the plastic extension part to be inserted.

[0014] Furthermore, the metal front cover has a sleeve mounting cavity for accommodating the ceramic sleeve, a positioning sleeve is provided in the sleeve mounting cavity, a positioning guide is provided at the end of the ceramic sleeve away from the metal pressure block, and a positioning guide groove is provided on the end face of the positioning sleeve to cooperate with the positioning guide.

[0015] Furthermore, during the stamping assembly of the metal front cover and the metal pressure block, the ceramic sleeve is subjected to axial force, causing the positioning guide part to abut against the positioning guide groove to achieve axial self-positioning; the positioning sleeve is made of plastic metal material, which undergoes volume shrinkage deformation after being compressed.

[0016] Furthermore, the central hole wall of the positioning sleeve is provided with an annular mounting groove, and a rubber ring is installed in the annular mounting groove. When the positioning sleeve undergoes volume shrinkage deformation, it squeezes the rubber ring, causing the inner ring of the rubber ring to shrink so as to clamp the external plug inserted into the ceramic sleeve.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this invention, the mechanical extrusion force during the stamping and assembly of the metal front cover and the metal pressure block causes uniform radial inward plastic deformation of the plastic extension portion, thereby applying a uniform clamping force to the ceramic sleeve. This purely mechanical structure completely avoids the problems of glue aging and volatile pollution. Without improving the machining accuracy of the inner cavity of the metal front cover or increasing manufacturing costs, it stably ensures the coaxiality of the ceramic sleeve and the ferrule hole, effectively reduces optical signal reflection, and optimizes the return loss index.

[0019] 2. In this invention, by setting an annular sleeve with a variable diameter slot, a driving spring, and a tapered section within the sliding cavity, a triple beneficial effect is achieved:

[0020] Pre-fixing before assembly: The annular sleeve contracts under the combined action of the drive spring and the tapered section, firmly locking and positioning the plastic extension part to prevent loosening and displacement before stamping;

[0021] Forced unilateral extension during stamping: The end of the annular sleeve that protrudes from the sliding cavity plays a unidirectional limiting role on the plastic extension part, forcing the plastic extension part to extend only in the direction of the ceramic sleeve.

[0022] Automatic overpressure avoidance: During stamping, the metal front cover overcomes the spring force to push the annular sleeve away from the tapered section. The annular sleeve then resets and opens, creating a gap between the clamping hole and the annular part. This gap cleverly provides an "overflow space" for excess metal during plastic elongation, completely avoiding the problem of skewing caused by uneven clamping force on the ceramic sleeve due to excessive local elongation.

[0023] 3. In this invention, a positioning sleeve with a positioning guide groove is added inside the metal front cover, which cooperates with the positioning guide part on the ceramic sleeve. During the stamping process, when the ceramic sleeve is subjected to axial force, it will automatically abut against the positioning guide groove, and complete the high-precision axial self-positioning by utilizing the stamping force itself. The structure is ingenious and requires no additional assembly process, preventing the ceramic sleeve from axially moving under force.

[0024] 4. In this invention, the positioning sleeve is made of a plastic metal material. When absorbing the axial impact force transmitted from the ceramic sleeve, the positioning sleeve itself will undergo plastic deformation with volume shrinkage, thereby squeezing the rubber ring inside and reducing the inner ring size. This design combines the original simple "stamping assembly" action with "plug clamping force pre-adjustment" into one, without adding any extra steps, ensuring that the client plug has a suitable and stable insertion and extraction force when inserted into the ceramic sleeve. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an optical socket assembly for an optical component according to the present invention;

[0026] Figure 2 for Figure 1 Schematic diagram of the positional relationships of the central structure after explosive decomposition;

[0027] Figure 3 for Figure 1 A schematic diagram showing the positional relationship of the middle section after it has been cut open;

[0028] Figure 4 for Figure 3 A magnified schematic diagram of the positional relationship of a local structure at point A in the middle;

[0029] Figure 5 for Figure 3 A magnified schematic diagram of the positional relationship of the local structure at point B in the middle section;

[0030] Figure 6 for Figure 3 A schematic diagram showing the positional relationship of the structure from another perspective;

[0031] Figure 7 for Figure 6 A magnified schematic diagram of the positional relationship of the local structure at point K;

[0032] Figure 8 for Figure 1The diagram omitting the positional relationship between the metal front cover and the metal clamping block;

[0033] Figure 9 This is a schematic diagram showing the positional relationship of the metal pressure block after it has been cut open in this invention;

[0034] Figure 10 This is a schematic diagram of the annular sleeve in this invention.

[0035] The reference numerals in the figures are explained as follows: 1. Insert sleeve; 2. Protrusion; 3. Annular flange; 4. Metal pressure block; 5. Metal front cover; 6. Guide hole; 7. Front cover assembly cavity; 8. Drive spring; 9. Variable diameter slot; 10. Plastic extension part; 11. Annular sleeve; 12. Clamping hole; 13. Positioning guide part; 14. Ceramic sleeve; 15. Rubber ring; 16. Positioning sleeve; 17. Sliding cavity; 18. Extrusion surface; 19. Positioning guide groove; 20. Annular part; 21. Conical section; 22. Insert mounting hole. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-10This invention provides a technical solution: an optical socket assembly for optical components, including a metal front cover 5, a metal pressure block 4, a ceramic sleeve 14, and a ferrule 1 used in conjunction with the ceramic sleeve 14. The ferrule 1 is used to install external pigtails. The metal front cover 5 has a cylindrical structure, with a through-hole guide hole 6 on its end face. The guide hole 6 has a guide chamfer at its opening. Additionally, a blind-hole sleeve mounting cavity is formed at one end facing the metal pressure block 4. The ceramic sleeve 14 is assembled in the sleeve mounting cavity. The depth of the sleeve mounting cavity is greater than the axial length of the ceramic sleeve 14. One end face of the ceramic sleeve 14 is flush with the side face of the metal front cover 5 facing the metal pressure block 4. The ceramic sleeve 14 is generally made of zirconia ceramic, which has high rigidity and wear resistance. The metal pressure block 4 also has a cylindrical structure. The metal pressure block 4 faces the metal pressure block 4. A front cover assembly cavity 7 is coaxially formed on one end face of the front cover 5. The inner diameter of the front cover assembly cavity 7 is adapted to the outer diameter of the metal front cover 5. Specifically, the outer diameter of the metal front cover 5 is slightly larger than the inner diameter of the front cover assembly cavity 7, so that the metal front cover 5 can be stamped and assembled in the front cover assembly cavity 7. Annular flanges 3 are coaxially fixed at both ends of the metal pressure block 4. The outer diameters of the two annular flanges 3 are different and are fastened to the external equipment, so that the metal pressure block 4 can be connected. A protrusion 2 is coaxially fixed on the end face of the metal pressure block 4 away from the metal front cover 5. A core mounting hole 22 is formed on the protrusion 2, which penetrates the metal pressure block 4 and communicates with the front cover assembly cavity 7. The core sleeve 1 is inserted into the core mounting hole 22, and one end of the core sleeve 1 inserted into the core mounting hole 22 can cooperate with the ceramic sleeve 14.

[0038] Combination Figures 2 to 10 As shown, and please refer to the following: Figure 2 and Figure 7A blind-hole-shaped sliding cavity 17 is coaxially formed inside the metal pressure block 4. The sliding cavity 17 is in a through-hole state with the front cover assembly cavity 7. In addition, an annular portion 20 is coaxially fixed inside the metal pressure block 4. The annular portion 20 is disposed in the inner cavity of the sliding cavity 17. The end face of the annular portion 20 is flush with the inner wall of the front cover assembly cavity 7. Furthermore, the periphery of the annular portion 20 and the inner cavity of the sliding cavity 17 form an annular cavity. The inner wall of the opening of the sliding cavity 17 is inclined, or in other words, the opening of the sliding cavity 17... The inner diameter of one side increases progressively towards the bottom of the sliding cavity 17. An annular sleeve 11 is fitted around the periphery of the annular portion 20, engaging within the sliding cavity 17. The central hole of the annular sleeve 11 is defined as a clamping hole 12. A diameter-changing slot 9 is formed on the periphery of the annular sleeve 11 facing the metal front cover 5, extending towards the other side of the annular sleeve 11. A drive spring 8 is installed inside the sliding cavity 17, wrapped around the periphery of the annular portion 20, and drives... The two ends of the spring 8 elastically abut against the end face of the annular sleeve 11 and the inner bottom wall of the sliding cavity 17, respectively. The driving spring 8 has an elastic abutting force on the annular sleeve 11 in the direction of the metal front cover 5, so that the end of the annular sleeve 11 facing the metal front cover 5 is engaged in the opening of the sliding cavity 17. Since the outer diameter of the opening of the sliding cavity 17 changes sequentially, the inner wall of one side of the opening of the sliding cavity 17 generates a squeezing force on the periphery of the annular sleeve 11, so that the periphery of the annular sleeve 11 is subjected to a squeezing force in its radial inner direction. This will cause the annular sleeve 11 to be in an elastic contraction deformation state, and the wall of the clamping hole 12 of the annular sleeve 11 will hug the periphery of the annular part 20. At this time, the diameter of the clamping hole 12 and the outer diameter of the annular sleeve 11 increase sequentially from near to far in the direction of the adjacent metal front cover 5. In addition, the smallest end of the outer diameter of the annular sleeve 11 after elastic contraction will pass through the sliding cavity 17. The inner wall of the opening of the sliding cavity 17 is defined as the conical segment 21.

[0039] Combination Figures 2 to 10 As shown, and please refer to the following: Figure 7A plastic extension portion 10 is connected to the side end face of the annular portion 20 facing the front cover assembly cavity 7. The plastic extension portion 10 has a ring-shaped structure. The inner diameter of the plastic extension portion 10 is slightly larger than the outer diameter of the insert sleeve 1. The outer diameter of the plastic extension portion 10 increases gradually from far to near in the direction away from the annular portion 20. The side end face of the plastic extension portion 10 with the largest outer diameter abuts against the end face of the annular portion 20. The largest outer diameter of the plastic extension portion 10 matches the diameter of the clamping hole 12 after the annular sleeve 11 elastically contracts, so that the annular sleeve 11 elastically contracts... The smallest end of the reduced clamping hole 12 is engaged with the plastic extension portion 10, thereby allowing the plastic extension portion 10 to be fixed within the front cover assembly cavity 7 before stamping of the metal front cover 5 and the metal pressure block 4. Furthermore, the plastic extension portion 10 is entirely made of a metal material with good plastic deformation properties. This allows the plastic extension portion 10 to be subjected to significant compressive force during stamping of the metal front cover 5 and the metal pressure block 4, resulting in plastic deformation. In this embodiment, the material of the plastic extension portion 10 can be set to brass, as brass has good plasticity... It possesses deformability and a certain mechanical strength. One end of the metal front cover 5, which is assembled into the front cover assembly cavity 7 of the metal pressure block 4, has an inner chamfered extrusion surface 18. The taper of the extrusion surface 18 matches the peripheral taper of the plastic extension portion 10. Thus, when the metal front cover 5 is stamped into the front cover assembly cavity 7, the extrusion surface 18 will gradually generate extrusion force on the plastic extension portion 10. Because the extrusion surface 18 exerts a plastic extension force on the plastic extension portion 10 along the radial inward side of the metal front cover 5, and at the same time, the inner hole (or central hole) of the plastic extension portion 10... The aperture size is slightly larger than the outer diameter of the insert sleeve 1, so that the plastic extension portion 10 will plastically extend in the radially inward direction of the metal front cover 5, and the plastic extension portion 10 will exert a compressive force on the insert sleeve 1, thereby having a clamping force on the insert sleeve 1. Since the plastic extension portion 10 plastically extends uniformly, the clamping force on the periphery of the insert sleeve 1 is consistent. In addition, since there is a certain space between the inner wall of the plastic extension portion 10 and the outer wall of the insert sleeve 1, the amount of plastic extension of the plastic extension portion 10 is not too large, thereby causing compression to the insert sleeve 1.

[0040] Combination Figures 2 to 10 As shown, and please refer to the following: Figure 2 and Figure 5A positioning sleeve 16 is installed inside the sleeve mounting cavity of the metal front cover 5. The outer diameter of the positioning sleeve 16 is the same as the inner diameter of the sleeve mounting cavity. A chamfered positioning guide part 13 is provided at the end of the ceramic sleeve 14 away from the metal pressure block 4. A positioning guide groove 19 is provided on the end face of the positioning sleeve 16 to cooperate with the positioning guide part 13. An annular mounting groove is provided on the central hole wall of the positioning sleeve 16, and a rubber ring 15 is installed in the annular mounting groove. The positioning sleeve 16 is made of plastic metal. When the ceramic sleeve 14 is subjected to axial extrusion force in the front cover assembly cavity 7, the ceramic sleeve 14 will move slightly towards the guide hole 6, thereby causing the positioning guide part 13 and the positioning guide groove 19 to abut against each other, and enabling... The ceramic sleeve 14 is axially positioned. This, combined with the plastic extension deformation of the plastic extension part 10, ensures the coaxiality of the ceramic sleeve 14 and the insert sleeve 1. In addition, when the ceramic sleeve 14 is stamped by the metal front cover 5 and the metal pressure block 4 and is subjected to axial force, the positioning sleeve 16 will undergo a small plastic deformation, which will cause the positioning sleeve 16 to shrink in volume and compress the rubber ring 15. After being compressed, the inner ring of the rubber ring 15 shrinks, so that when the external client plug is inserted into the ceramic sleeve 14, the rubber ring 15 can clamp the client plug, thus ensuring the insertion and extraction force of the client plug.

[0041] Working principle of the invention:

[0042] When the metal front cover 5 is stamped with the metal pressure block 4, the extrusion surface 18 at the end of the metal front cover 5 will extrude the plastic extension portion 10, causing the plastic extension portion 10 to be extruded and plastically extended. The plastic extension portion 10 will plastically extend towards the ceramic sleeve 14, thereby causing the plastic extension portion 10 to exert extrusion force on the ceramic sleeve 14 and causing the ceramic sleeve 14 to be uniformly clamped. Since the end of the annular sleeve 11 that protrudes from the sliding cavity 17 limits the plastic extension portion 10, the plastic extension portion 10 can only plastically extend and deform towards the ceramic sleeve 14. In addition, when the annular sleeve 11 protrudes from the sliding cavity 17, the diameter-changing slot 9 on it is in a closed state.

[0043] When the metal front cover 5 is stamped, it will exert a squeezing force on the end of the annular sleeve 11 that protrudes from the sliding cavity 17, causing the annular sleeve 11 to slide towards the inside of the sliding cavity 17 and compressing the drive spring 8, so that the drive spring 8 accumulates elastic potential energy. When the annular sleeve 11 slides towards the inside of the sliding cavity 17, the squeezing force on the periphery of the annular sleeve 11 caused by the inner wall of the tapered section 21 disappears, and the annular sleeve 11 gradually returns to its initial state. After the annular sleeve 11 returns to its initial state, the diameter of its clamping hole 12 becomes larger, so that there is a small gap between the hole wall of the clamping hole 12 and the periphery of the annular part 20. This gap can allow the excess part of the plastic extension 10 to be stuck, thereby avoiding the excessive amount of the plastic extension part, which would generate excessive squeezing force on the ceramic sleeve 14, or the excessive amount of the plastic extension part in a certain local position would cause uneven squeezing force on the ceramic sleeve 14, resulting in the ceramic sleeve 14 becoming biased.

[0044] In addition, when the ceramic sleeve 14 is stamped by the metal front cover 5 and the metal pressure block 4, it will be subjected to axial force, which will cause the positioning guide part 13 to abut against the positioning guide groove 19, thereby enabling the ceramic sleeve 14 to be axially self-positioned. At the same time, it will generate axial extrusion force on the ceramic sleeve 14 to prevent the ceramic sleeve 14 from moving axially. In addition, when the positioning sleeve 16 undergoes plastic deformation, it will compress the rubber ring 15, which will cause the inner ring of the rubber ring 15 to shrink.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical socket assembly for optical components, comprising a metal front cover (5), a metal pressure block (4), a ceramic sleeve (14), and a ferrule sleeve (1), wherein the ceramic sleeve (14) is disposed within the metal front cover (5), and the ferrule sleeve (1) is disposed within the metal pressure block (4) and one end engages with the ceramic sleeve (14), characterized in that, A plastic extension portion (10) is provided between the metal front cover (5) and the metal pressure block (4). When the metal front cover (5) and the metal pressure block (4) are assembled and subjected to force, the metal front cover (5) can squeeze the plastic extension portion (10) to cause it to undergo plastic deformation, so as to apply a uniform clamping force to the ceramic sleeve (14) on the radial inner side.

2. The optical socket assembly for an optical component according to claim 1, characterized in that, The metal pressure block (4) has a front cover assembly cavity (7) at one end facing the metal front cover (5). One end of the metal front cover (5) is inserted into the front cover assembly cavity (7). The plastic extension part (10) is annular and is disposed in the front cover assembly cavity (7). The outer diameter of the plastic extension part (10) increases in the direction away from the ceramic sleeve (14).

3. The optical socket assembly for an optical component according to claim 2, characterized in that, The metal front cover (5) is inserted into the front cover assembly cavity (7) at one end with an extrusion surface (18). The taper of the extrusion surface (18) is adapted to the peripheral taper of the plastic extension part (10). When the metal front cover (5) is pressed into the front cover assembly cavity (7), the extrusion surface (18) extrudes the plastic extension part (10) to make it plastically extend inward in a radial direction.

4. The optical socket assembly for an optical component according to claim 2, characterized in that, The metal pressure block (4) is coaxially provided with a sliding cavity (17), which is connected to the front cover assembly cavity (7). The sliding cavity (17) is provided with a coaxial annular part (20). One end face of the plastic extension part (10) abuts against the end face of the annular part (20). The sliding cavity (17) is also provided with a clamping and limiting component that cooperates with the annular part (20) to fix the plastic extension part (10) before stamping and to provide clearance space for the extension of the plastic extension part (10) during stamping.

5. An optical socket assembly for an optical component according to claim 4, characterized in that, The clamping and limiting assembly includes an annular sleeve (11) slidably disposed in the sliding cavity (17). The central hole of the annular sleeve (11) is a clamping hole (12). One end of the annular sleeve (11) passes through the sliding cavity (17) and clamps the outer periphery of the plastic extension part (10). The inner wall of the opening of the sliding cavity (17) is provided with a conical section (21). When the annular sleeve (11) is located at the conical section (21), it is squeezed and in an elastic contraction state to hold the plastic extension part (10).

6. The optical socket assembly for an optical component according to claim 5, characterized in that, The clamping and limiting assembly also includes a drive spring (8), which is sleeved on the periphery of the annular portion (20) and its two ends elastically abut against the end face of the annular sleeve (11) and the inner bottom wall of the sliding cavity (17), respectively. The annular sleeve (11) has a variable diameter slot (9) on the periphery facing the metal front cover (5).

7. An optical socket assembly for an optical component according to claim 6, characterized in that, When the metal front cover (5) is pressed into the front cover assembly cavity (7), the end of the metal front cover (5) pushes the annular sleeve (11) to slide into the sliding cavity (17) and compresses the drive spring (8). After the annular sleeve (11) is released from the compression of the cone section (21), it returns to its initial state, so that a gap is formed between the clamping hole (12) and the annular part (20) for the excess deformation of the plastic extension part (10) to be inserted.

8. The optical socket assembly for an optical component according to claim 1, characterized in that, The metal front cover (5) has a sleeve mounting cavity for accommodating the ceramic sleeve (14). The sleeve mounting cavity is provided with a positioning sleeve (16). The ceramic sleeve (14) is provided with a positioning guide part (13) at one end away from the metal pressure block (4). The end face of the positioning sleeve (16) is provided with a positioning guide groove (19) that cooperates with the positioning guide part (13).

9. An optical socket assembly for an optical component according to claim 8, characterized in that, When the metal front cover (5) and the metal pressure block (4) are stamped and assembled, the ceramic sleeve (14) is subjected to axial force to make the positioning guide part (13) abut against the positioning guide groove (19) to achieve axial self-positioning; the positioning sleeve (16) is made of plastic metal material and undergoes volume shrinkage deformation after being pressed.

10. An optical socket assembly for an optical component according to claim 9, characterized in that, The positioning sleeve (16) has an annular mounting groove in its central hole wall. A rubber ring (15) is installed in the annular mounting groove. When the positioning sleeve (16) undergoes volume shrinkage deformation, it squeezes the rubber ring (15), causing the inner ring of the rubber ring (15) to shrink so as to clamp the external plug inserted into the ceramic sleeve (14).

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