Clamp mechanism

Abstract

The utility model relates to the technical field of clamps, and provides a clamp mechanism which comprises a bearing seat, a first clamping arm and a second clamping arm, the bearing seat comprises a first seat body and a second seat body which are arranged side by side, the first seat body is provided with a first optical fiber channel, and the second seat body is provided with a lens containing cavity communicated with the first optical fiber channel; the first clamping arm can move in the direction away from or close to the second clamping arm, and the first clamping arm is suitable for pushing the second seat body so as to clamp the first seat body and the second seat body with the second clamping arm. Deformation of the first optical fiber channel caused by clamp stress can be weakened, so that the influence of the clamp stress on the relative position change of the optical fiber end face and the lens is weakened, and the coupling efficiency of light and the optical fiber is kept at a high level.

Description

Technical Field

[0001] The present application relates to the field of clamp technology, and in particular provides a clamp mechanism for optical coupling. Background Art

[0002] At present, in the optical coupling process, the lens assembly is mainly clamped and fixed by a clamp mechanism, so as to couple the lens assembly with the chip on the circuit board of the optical module and ensure the transmission or reception coupling efficiency of the optical signal.

[0003] However, when the clamping mechanism clamps the lens assembly, it is easy to cause the lens assembly to deform, resulting in reduced light coupling efficiency or even coupling failure. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a clamp mechanism, which aims to solve the deformation problem that is easily caused by traditional clamps when fixing lens assemblies.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] The present application provides a clamp mechanism, comprising:

[0007] The bearing seat comprises a first seat body and a second seat body arranged side by side, wherein the first seat body is provided with a first optical fiber channel, and the second seat body is provided with a lens accommodating cavity communicated with the first optical fiber channel;

[0008] The first clamp arm can move away from or toward the second clamp arm, and the first clamp arm is suitable for pushing the second base body to clamp the first base body and the second base body with the second clamp arm.

[0009] Optionally, a pushing surface is provided on a side of the second base body close to the first base body, and the pushing surfaces are respectively located on two opposite sides of the first base body;

[0010] The first clamping arm is provided with a pushing arm suitable for pushing the pushing surface of the second seat body.

[0011] Optionally, the first clamp arm has a first end, and the two pushing arms are arranged on the first end at intervals along a moving direction perpendicular to the first clamp arm, and an avoidance channel for avoiding the first seat body is formed between the two pushing arms;

[0012] The first end of the first clamping arm is provided with a second optical fiber channel, the second optical fiber channel is arranged opposite to the first optical fiber channel and is connected to the avoidance channel.

[0013] Optionally, the second clamp arm has a third end, and the third end of the second clamp arm is provided with a clamping groove adapted to the first seat body and the second seat body.

[0014] Optionally, the clamp mechanism further comprises:

[0015] an air pump, disposed on the second clamping arm;

[0016] The second clamping arm is provided with an air cavity connected to the air pump, and the third end of the second clamping arm is provided with an air suction hole, and the air suction hole is respectively communicated with the air cavity and the clamping groove.

[0017] Optionally, the clamp mechanism further comprises:

[0018] The first clamp arm also has a second end arranged opposite to the first end, the second clamp arm also has a fourth end arranged opposite to the third end, the second end of the first clamp arm and the fourth end of the second clamp arm are respectively provided with sliders, and the sliders are connected to the slide rail.

[0019] Optionally, a light-transmitting window is provided between the first optical fiber channel and the lens accommodating cavity.

[0020] Optionally, an optical fiber interface is provided at one end of the first optical fiber channel away from the light-transmitting window.

[0021] Optionally, an optical fiber clamping post is provided at one end of the first optical fiber channel close to the light-transmitting window.

[0022] Optionally, the number of the optical fiber clamping posts is two, and the two optical fiber clamping posts are respectively arranged on opposite sides of the light-transmitting window.

[0023] The beneficial effect of the clamping mechanism provided by the present application is that, compared with the related art, the present application optimizes the force application position of the clamping pressure so that the first clamping arm applies stress to the second seat body instead of directly applying stress to the first seat body in contact with the optical fiber. This can reduce the deformation of the first optical fiber channel caused by the clamping stress, thereby reducing the influence of the clamping stress on the change in the relative position of the optical fiber end face and the lens, thereby ensuring that the coupling efficiency of light and the optical fiber is maintained at a high level. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1An exploded schematic diagram of a clamp mechanism provided in an embodiment of the present application;

[0026] Figure 2 A schematic diagram of the structure of the support base provided in the embodiment of the present application;

[0027] Figure 3 A schematic diagram of the structure of a first clamping arm provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the structure of a second clamping arm provided in an embodiment of the present application;

[0029] Figure 5 A schematic diagram of the working principle of the clamp mechanism provided in an embodiment of the present application.

[0030] Among them, the reference numerals in the figure are:

[0031] 100: bearing seat; 101: first seat body; 1011: first optical fiber channel;

[0032] 1012: light transmission window; 1013: optical fiber interface; 1014: optical fiber card connection column;

[0033] 102: second seat body; 1021: pushing surface;

[0034] 200: first clamping arm; 201: pushing arm; 202: avoidance channel;

[0035] 203: second optical fiber channel; 204: first end; 205: second end;

[0036] 300: second clamping arm; 301: clamping groove; 3011: first groove; 3012: second groove;

[0037] 302: limit column; 303: third end; 304: fourth end;

[0038] 400: air pump; 500: slide rail; 600: slider. DETAILED DESCRIPTION

[0039] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0040] In the description of the embodiments of the present application, it needs to be understood that the terms "length", "width", "up", "down", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present application.

[0041] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0042] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0043] According to one embodiment of the present application, referring to Figure 1-Figure 5 As shown, the present application provides a clamp mechanism, which mainly includes: a bearing seat 100, a first clamp arm 200, a second clamp arm 300 and other components. The bearing seat 100 includes a first seat body 101 and a second seat body 102 arranged side by side, the first seat body 101 is provided with a first optical fiber channel 1011, and the second seat body 102 is provided with a lens accommodating cavity connected to the first optical fiber channel 1011; the first clamp arm 200 can move in a direction away from or close to the second clamp arm 300, and the first clamp arm 200 is suitable for pushing the second seat body 102 to clamp the first seat body 101 and the second seat body 102 with the second clamp arm 300.

[0044] In this embodiment of the present application, the support base 100 is divided into a first base body 101 and a second base body 102. The first optical fiber channel 1011 of the first base body 101 is mainly used to install the optical fiber, while the lens accommodating cavity of the second base body 102 is used to accommodate and place the lens. This dual-base design helps to isolate the direct impact of external stress on the first optical fiber channel 1011 and reduce the risk of deformation.

[0045] By connecting the lens accommodating cavity with the first optical fiber channel 1011 , it can be ensured that the optical signal transmitted by the lens is correctly aligned with the optical fiber, and a good optical path alignment is maintained, which is crucial for achieving efficient optical coupling.

[0046] The first clamp arm 200 moves to push the second seat body 102, while the second clamp arm 300 cooperates with the first clamp arm 200 to clamp the bearing seat 100. This design changes the traditional direct clamping method, and optimizes the force application position of the clamping pressure, so that the stress of the first clamp arm 200 is applied to the second seat body 102, rather than directly acting on the first seat body 101 that contacts the optical fiber, thereby avoiding direct pressure on the first optical fiber channel 1011, effectively controlling the deformation of the first optical fiber channel 1011, thereby reducing the influence of the clamp stress on the relative position change of the optical fiber end face and the lens, and ensuring that the coupling efficiency of light and optical fiber is maintained at a high level.

[0047] Therefore, the clamp mechanism provided in the embodiment of the present application effectively solves the problems that are easily caused by traditional clamps in the optical coupling process, improves the efficiency of optical coupling and the overall performance of the mechanism through optimized stress distribution and protection measures, and has high practical value for application fields that require high-precision optical coupling.

[0048] According to one embodiment of the present application, referring to Figure 1-Figure 3 As shown, a pushing surface 1021 is provided on one side of the second base body 102 close to the first base body 101 , and the pushing surfaces 1021 are respectively located on two opposite sides of the first base body 101 ; the first clamping arm 200 is provided with a pushing arm 201 suitable for pushing the pushing surface 1021 of the second base body 102 .

[0049] For example, the first base body 101 and the second base body 102 are square in shape. Along the vertical direction of movement of the first clamp arm 200 , the width of the second base body 102 is greater than that of the first base body 101 , thereby constructing push surfaces 1021 on opposite sides of the first base body 101 .

[0050] In this embodiment of the present application, a push surface 1021 is designed on one side of the second base body 102 close to the first base body 101, and these push surfaces 1021 are located on both sides of the first base body 101. This design allows the first clamp arm 200 to precisely dock with the push surface 1021 of the second base body 102 through its push arm 201, thereby achieving controlled and directional thrust transmission. This ensures that the thrust is evenly distributed, reduces local excessive stress concentration, and further reduces the risk of adverse effects on the bearing seat 100. In addition, this symmetrical layout enhances the stability of the entire clamp mechanism, helps to balance the external force, and reduces the distortion or tilt caused by asymmetric stress distribution, thereby maintaining the precise alignment state of the optical path.

[0051] The push arm 201 on the first clamp arm 200 directly contacts and applies force to the push surface 1021 of the second seat body 102. This sophisticated mechanical interaction mechanism not only simplifies the operation process, but also improves the control accuracy during the clamping process. Through the precise control of the push arm 201, the support seat 100 can be firmly clamped without interfering with the relative position of the first optical fiber channel 1011 and the lens as much as possible, thereby achieving efficient and stable optical coupling.

[0052] Therefore, the embodiment of the present application not only effectively solves the deformation problem encountered by the traditional clamp during the optical coupling process through the ingenious combination of the pushing surface 1021 of the second base body 102 and the pushing arm 201, but also improves the stability and convenience of the clamp structure.

[0053] According to one embodiment of the present application, referring to Figure 1-Figure 3 As shown, the first clamping arm 200 has a first end 204, and two pushing arms 201 are arranged on the first end 204 at intervals along a moving direction perpendicular to the first clamping arm 200, and an avoidance channel 202 for avoiding the first seat body 101 is formed between the two pushing arms 201; a second optical fiber channel 203 is provided at the first end of the first clamping arm 200, and the second optical fiber channel 203 is arranged opposite to the first optical fiber channel 1011 and is connected to the avoidance channel 202.

[0054] In this embodiment of the present application, the first end 204 of the first clamp arm 200 can be the bottom end, and the bottom end of the first clamp arm 200 is provided with a second optical fiber channel 203, and is relatively connected with the first optical fiber channel 1011 on the first seat body 101. Such a design allows the optical fiber to directly pass from the second optical fiber channel 203 at the bottom end of the first clamp arm 200 into the final first optical fiber channel 1011, which simplifies the installation process of the optical fiber while maintaining the linearity of the optical fiber path, which helps to reduce the risk of signal attenuation or damage caused by optical fiber bending.

[0055] Furthermore, the avoidance channel 202 specially provided between the two pushing arms 201 provides a space for the first seat body 101 to pass through. That is, during the clamping operation, even if the second seat body 102 is pushed by the pushing arm 201 of the first clamping arm 200, it will not squeeze the installed optical fiber or the first seat body 101 itself. The design of the avoidance channel 202 effectively avoids physical interference with the optical fiber or the first optical fiber channel 1011 during the installation and clamping process, and protects the integrity of the optical fiber and the accuracy of optical coupling.

[0056] According to one embodiment of the present application, referring to Figure 4 As shown, the second clamp arm 300 has a third end 303 , and the third end 303 of the second clamp arm 300 is provided with a clamping groove 301 adapted to the first base body 101 and the second base body 102 .

[0057] The embodiment of the present application can simplify the clamping and fixing process of the support seat 100 through the clamping groove 301, achieve fast and accurate positioning and fixing, and improve assembly efficiency.

[0058] For example, the first base body 101 and the second base body 102 are square in shape, and the height of the first base body 101 is greater than the height of the second base body 102. At this time, the shape of the clamping groove 301 is roughly stepped, and the clamping groove 301 includes a first groove 3011 adapted to the top of the first base body 101 and a second groove 3012 adapted to the top of the second base body 102.

[0059] The third end 303 of the second clamp arm 300 can be the bottom end, and the clamping groove 301 at the bottom end of the second clamp arm 300 adopts a stepped structure, and this design can accurately match the different sizes of the first seat body 101 and the second seat body 102 in the bearing seat 100. The first groove 3011 is adapted to the top of the first seat body 101, and the second groove 3012 is adapted to the second seat body 102. This differentiated design ensures the fit and stability during clamping, and each part can be properly supported, avoiding the problem of over-clamping or loose clamping.

[0060] It is understandable that a square seat is described in this example. When the seat is in other shapes, the size and shape of the clamping groove 301 can be adaptively adjusted to match.

[0061] According to one embodiment of the present application, referring to Figure 4 As shown, a limiting column 302 is provided on one side of the clamping groove 301 away from the first base body 101 , and the limiting column 302 is used to limit the second base body 102 .

[0062] Specifically, when the push arm 201 of the first clamp arm 200 pushes the push surface 1021 of the second base body 102 , the second base body 102 can finally be pressed against the limiting column 302 , thereby achieving clamping of the support base 100 .

[0063] The specific number of the limiting posts 302 is not particularly limited. For example, two limiting posts 302 may be provided, and the two limiting posts 302 are arranged side by side and at intervals on the right side of the clamping groove 301 .

[0064] According to one embodiment of the present application, referring to Figure 4 As shown, the clamping mechanism also includes: an air pump 400, which is arranged on the second clamping arm 300; the second clamping arm 300 is provided with an air cavity connected to the air pump 400, and the third end 303 of the second clamping arm 300 is provided with an air suction hole, which is respectively connected to the air cavity and the clamping groove 301.

[0065] In this embodiment of the present application, the pneumatic principle is used to achieve the adsorption and fixation of the support base 100. When the air pump 400 is working, a negative pressure environment can be formed in the clamping groove 301, so as to quickly and firmly adsorb the support base 100. This adsorption method can not only improve the stability of the clamping, but also effectively prevent displacement caused by vibration or external force impact, which is particularly critical for maintaining the high-precision alignment required for optical coupling.

[0066] According to one embodiment of the present application, referring to Figure 1 , Figure 3 and Figure 4 As shown, the clamping mechanism also includes: a slide rail 500, the first clamping arm 200 also has a second end 205 arranged opposite to the first end 204, the second clamping arm 300 also has a fourth end 304 arranged opposite to the third end 303, the second end 205 of the first clamping arm 200 and the fourth end 304 of the second clamping arm 300 are respectively provided with a slider 600, and the slider 600 is slidably connected to the slide rail 500.

[0067] In this embodiment of the present application, the second end 205 of the first clamp arm 200 and the fourth end 304 of the second clamp arm 300 can be top ends, and sliders 600 are respectively provided at the top ends of the two clamp arms, and these sliders 600 move along the common slide rail 500. Such a design enables the two clamp arms to slide synchronously along the same axis, thereby achieving precise clamping and quick release of the bearing seat 100. This linear motion mechanism simplifies the operation steps and improves work efficiency.

[0068] Furthermore, by adjusting the position of the slider 600 on the slide rail 500, the distance between the first clamp arm 200 and the second clamp arm 300 can be precisely controlled, thereby controlling the clamping force on the support base 100. This adjustment method is conducive to ensuring sufficient fixing force while avoiding damage to the support base 100 caused by excessive clamping.

[0069] According to one embodiment of the present application, referring to Figure 2 As shown, a light-transmitting window 1012 is provided between the first optical fiber channel 1011 and the lens accommodating cavity.

[0070] In this embodiment of the present application, the light-transmitting window 1012 serves as a key interface for optical signal transmission, ensuring that the light emitted from the laser on the circuit board can be directly and unimpededly focused by the lens in the lens accommodating cavity and accurately guided to the optical fiber in the first optical fiber channel 1011. Vice versa, the optical signal transmitted from the optical fiber can also smoothly pass through the light-transmitting window 1012 and the lens in the lens accommodating cavity to reach the photodetector on the circuit board. This design simplifies the optical path structure and reduces unnecessary light loss and signal attenuation.

[0071] According to one embodiment of the present application, referring to Figure 1 and Figure 2 As shown, an optical fiber interface 1013 is provided at one end of the first optical fiber channel 1011 away from the light-transmitting window 1012 .

[0072] Specifically, the design of the optical fiber interface 1013 allows the optical fiber to be directly and firmly inserted into the first optical fiber channel 1011 without the need for a complicated alignment process, thereby improving assembly efficiency.

[0073] In addition, the optical fiber interface 1013 can also be designed with appropriate protective measures, such as protective structures such as dust covers, so that when the optical fiber is not assembled, the dust cover can be placed on the optical fiber interface 1013 to prevent the first optical fiber channel 1011 from being contaminated or physically damaged.

[0074] According to one embodiment of the present application, referring to Figure 2 As shown, an optical fiber clamping post 1014 is disposed at one end of the first optical fiber channel 1011 close to the light-transmitting window 1012 .

[0075] In this embodiment of the present application, the optical fiber clamping column 1014 is designed mainly to be tightly clamped with the end face of the optical fiber to prevent the optical fiber from being displaced when subjected to external vibration or pulling, thereby ensuring the stability of the optical fiber.

[0076] Stable fiber positioning is essential to maintain long-term optical coupling efficiency. The fiber clamping post 1014 ensures that the fiber can maintain a good coupling state with the lens under long-term operation or environmental changes, reduces the optical signal attenuation caused by fiber displacement, and ensures the continuity and reliability of signal transmission.

[0077] Furthermore, the position and angle of the optical fiber end face fixed by the optical fiber clamping column 1014 are relatively fixed, which simplifies the optical path alignment process to a certain extent, reduces the complexity and time of manual adjustment, and improves assembly efficiency.

[0078] According to one embodiment of the present application, referring to Figure 2 As shown, there are two optical fiber clamping posts 1014, which are respectively arranged on opposite sides of the light-transmitting window 1012. By symmetrically arranging the optical fiber clamping posts 1014 on both sides of the light-transmitting window 1012, it can be ensured that the optical fiber is subjected to a balanced clamping force in two directions. This symmetrical arrangement helps to eliminate the deflection or stress concentration caused by unilateral fixation, and improves the accuracy and stability of optical fiber positioning.

[0079] Furthermore, the two-point support structure formed by the two optical fiber clamping posts 1014 enhances the overall rigidity of the optical fiber assembly and is more capable of resisting external vibration and impact, which is particularly important for maintaining the quality of optical signal transmission, especially in applications under high vibration environments.

[0080] The working principle of the clamp mechanism provided by the present application is described below with reference to a specific example, which generally includes:

[0081] Reference Figure 5 As shown, the supporting seat 100 is adsorbed into the clamping groove 301 of the second clamping arm 300 by the air pump 400, and then the pushing arm 201 of the first clamping arm 200 is controlled to move to the right, contacting and pushing the pushing surface 1021 of the second seat body 102 of the supporting seat 100, so that the second seat body 102 moves to the right and abuts against the limiting column 302 on the right side of the clamping groove 301, thereby completing the clamping and fixing of the supporting seat 100.

[0082] The above are only preferred embodiments of the present application and are not intended to limit the embodiments of the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A clamping mechanism, characterized in that: include: The bearing seat comprises a first seat body and a second seat body arranged side by side, wherein the first seat body is provided with a first optical fiber channel, and the second seat body is provided with a lens accommodating cavity communicated with the first optical fiber channel; The first clamp arm can move away from or toward the second clamp arm, and the first clamp arm is suitable for pushing the second base body to clamp the first base body and the second base body with the second clamp arm.

2. The clamping mechanism according to claim 1, characterized in that: A push surface is provided on one side of the second base body close to the first base body, and the push surfaces are respectively located on two opposite sides of the first base body; The first clamping arm is provided with a pushing arm suitable for pushing the pushing surface of the second seat body.

3. The clamping mechanism according to claim 2, characterized in that: The first clamp arm has a first end, and the two push arms are arranged on the first end at intervals along a moving direction perpendicular to the first clamp arm, and an avoidance channel for avoiding the first seat body is formed between the two push arms; The first end of the first clamping arm is provided with a second optical fiber channel, the second optical fiber channel is arranged opposite to the first optical fiber channel and is connected to the avoidance channel.

4. The clamping mechanism according to claim 3, characterized in that: The second clamping arm has a third end, and the third end of the second clamping arm is provided with a clamping groove matched with the first base body and the second base body.

5. The clamping mechanism according to claim 4, characterized in that: The clamp mechanism also includes: an air pump, disposed on the second clamping arm; The second clamping arm is provided with an air cavity connected to the air pump, and the third end of the second clamping arm is provided with an air suction hole, and the air suction hole is respectively communicated with the air cavity and the clamping groove.

6. The clamping mechanism according to claim 4, characterized in that: The clamp mechanism also includes: The first clamp arm also has a second end arranged opposite to the first end, the second clamp arm also has a fourth end arranged opposite to the third end, the second end of the first clamp arm and the fourth end of the second clamp arm are respectively provided with sliders, and the sliders are connected to the slide rail.

7. The clamping mechanism according to any one of claims 1 to 6, characterized in that: A light-transmitting window is provided between the first optical fiber channel and the lens accommodating cavity.

8. The clamping mechanism according to claim 7, characterized in that: An optical fiber interface is provided at one end of the first optical fiber channel away from the light-transmitting window.

9. The clamping mechanism according to claim 7, characterized in that: An optical fiber clamping column is provided at one end of the first optical fiber channel close to the light-transmitting window.

10. The clamping mechanism according to claim 9, characterized in that: The number of the optical fiber clamping posts is two, and the two optical fiber clamping posts are respectively arranged on opposite sides of the light-transmitting window.

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