Optical fiber core rod sleeving device

Abstract

The invention provides an optical fiber core rod sleeving device, and relates to the field of optical fiber measurement. The device comprises a supporting frame, an adjustable clamp, an imaging assembly and a processor. The adjustable clamp and the imaging assembly are both in communication connection with the processor. The supporting frame is used for supporting the sleeve and the optical fiber core rod, and the two ends of the optical fiber core rod are coaxially arranged in the sleeve in a sleeved mode through adjustable clamps; the imaging assembly is used for acquiring an image comprising the sleeve and the optical fiber core rod and sending the image to the processor; the processor is used for determining the position relation between the sleeve and the optical fiber core rod according to the image, determining adjustment information according to the position relation and outputting the adjustment information to the adjustable clamp; and the adjustable clamp is used for adjusting the coaxiality of the optical fiber core rod and the sleeve according to the adjustment information. According to the invention, the stability of batch products and the qualification of product quality can be improved.

Description

Technical Field

[0001] The present application relates to the field of optical fiber measurement, and in particular to an optical fiber core rod jacketing device. Background Art

[0002] With the continuous development of AI computing networks and intelligent sensing systems, people are increasingly demanding special optical fibers. Deposition is an indispensable step in the preparation of special optical fibers. After the core layer is deposited, it collapses at a certain temperature to form an optical fiber preform with a core and an initial cladding. Then, the core-cladding ratio at this time may not fully meet the actual use requirements, or the core-cladding ratio is designed to be much larger than the actual required core-cladding ratio at the beginning of the design in order to obtain the possibility of drawing a longer optical fiber length. Therefore, after the collapse is completed, an outer sleeve needs to be added to the preform. In the process of adding the outer sleeve (sleeving), the center of the outer sleeve needs to coincide with the center of the core rod to ensure that the prepared preform is not eccentric.

[0003] During the jacketing process, it is necessary to monitor in real time whether the center of the core rod and the outer sleeve are in a straight line. Currently, human observation and manual centering are used. This will lead to batch instability and substandard product quality. Summary of the invention

[0004] The present application provides an optical fiber core rod jacketing device to solve the problem in the prior art that manually adjusting the position of the core rod and the outer sleeve is prone to batch instability and substandard product quality.

[0005] In a first aspect, the present application provides an optical fiber core rod jacketing device, comprising: a support frame, an adjustable clamp, an imaging component and a processor, wherein the adjustable clamp and the imaging component are both communicatively connected to the processor; The support frame is used to support the sleeve and the optical fiber core rod, wherein the two ends of the optical fiber core rod are coaxially sleeved in the sleeve by means of the adjustable clamp; The imaging assembly is used to acquire an image including the sleeve and the optical fiber core rod, and send the image to the processor; The processor is used to determine the positional relationship between the sleeve and the optical fiber core rod according to the image, determine adjustment information according to the positional relationship, and output the adjustment information to the adjustable fixture; The adjustable fixture is used to adjust the coaxiality between the optical fiber core rod and the sleeve according to the adjustment information.

[0006] The present application provides a fiber core rod sleeve device, which includes a support frame, an adjustable fixture, an imaging component and a processor, wherein the adjustable fixture and the imaging component are both connected to the processor in communication; the support frame is used to support the sleeve and the fiber core rod, wherein the two ends of the fiber core rod are coaxially sleeved in the sleeve by means of the adjustable fixture; the imaging component is used to obtain an image including the sleeve and the fiber core rod, and send the image to the processor; the processor is used to determine the positional relationship between the sleeve and the fiber core rod according to the image, and determine the adjustment information according to the positional relationship, and output the adjustment information to the adjustable fixture; the adjustable fixture is used to adjust the coaxiality of the fiber core rod and the sleeve according to the adjustment information. The present application can automatically adjust the position of the fiber core rod in the sleeve without manual intervention, and the judgment standard for determining the adjustment signal each time is consistent, which can greatly improve the consistency of the batch, the stability of the batch products and the quality of the products. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] 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 the description of the prior art 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 labor.

[0008] Figure 1 It is a structural schematic diagram of an optical fiber core rod jacketing device provided in an embodiment of the present application; Figure 2a This is a schematic diagram of a first assembly structure of an imaging device and a bracket provided in an embodiment of the present application; Figure 2b This is a schematic diagram of a second assembly structure of an imaging device and a bracket provided in an embodiment of the present application; Figure 3a is a schematic diagram of an image captured by an imaging device provided in an embodiment of the present application; Figure 3b is a schematic diagram of the misalignment of the position of the set and the optical fiber core rod provided in the embodiment of the present application; Figure 4a This is a first support schematic diagram of a support frame and a sleeve provided in an embodiment of the present application; Figure 4b This is a second support schematic diagram of the support frame and the sleeve provided in the embodiment of the present application; Figure 4c This is a third support schematic diagram of the support frame and the sleeve provided in the embodiment of the present application; Figure 5 is a schematic diagram of the sliding direction of the imaging device on the slide rail provided in an embodiment of the present application; Figure 6a It is a schematic diagram of the axis alignment of the sleeve and the optical fiber core rod provided in an embodiment of the present application; Figure 6b is a schematic diagram showing that the axis of the sleeve provided in an embodiment of the present application is located above the axis of the optical fiber core rod; Figure 6c is a schematic diagram showing that the axis of the sleeve provided in an embodiment of the present application is located below the axis of the optical fiber core rod; Figure 7a is a third image schematic diagram provided in an embodiment of the present application; Figure 7b This is a fourth image schematic diagram provided in an embodiment of the present application. DETAILED DESCRIPTION

[0009] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0010] In order to make the purpose, technical solutions and advantages of the present application clearer, specific embodiments will be described below in conjunction with the accompanying drawings.

[0011] At present, in the process of adding sleeves to optical fiber preparation, it is often necessary to observe with human eyes whether the core rod is in the middle of the sleeve. Human eye observation is a qualitative observation that cannot be quantified, and different people have different judgment standards, which is not convenient for mass production. Therefore, it is necessary to propose a quantitative core rod observation method, that is, the present application proposes an optical fiber core rod adding sleeve device, which can quickly and conveniently determine whether the core rod is in the middle of the sleeve.

[0012] Among them, casing is the preparatory work before casing the preform rod. With the help of adjustable clamps, the core rod is fixed in the middle of the casing.

[0013] Rod wrapping refers to the process in which the casing melts and collapses to wrap the core rod under the action of flame, and it does not work when the position of the core rod and the casing is adjusted.

[0014] Figure 1 This is a schematic diagram of the structure of the optical fiber core rod jacketing device provided in the embodiment of the present application. Figure 1 As shown, the optical fiber core rod jacketing device includes a support frame 1, an adjustable clamp 2 ( Figure 1There are two adjustable clamps, namely, adjustable clamp 21 and adjustable clamp 22), imaging component 3 and processor 4, and both adjustable clamp 2 and imaging component 3 are connected to processor 4 for communication. Support frame 1 is used to support sleeve 5 and optical fiber core rod 6, wherein both ends of optical fiber core rod 6 are coaxially sleeved in sleeve 5 by means of adjustable clamp 2. Imaging component 3 is used to obtain an image including sleeve 5 and optical fiber core rod 6, and send the image to processor 4. Processor 4 is used to determine the positional relationship between sleeve 5 and optical fiber core rod 6 according to the image, determine adjustment information according to the positional relationship, and output the adjustment information to the adjustable clamp. Adjustable clamp 2 is used to adjust the coaxiality of optical fiber core rod 6 and sleeve 5 according to the adjustment information.

[0015] When the processor outputs the adjustment information to the adjustable fixture, it is output through an adjustment signal, wherein the adjustment signal may be an electrical signal or other control signal.

[0016] The embodiment of the present application solves the problem of traditional sheathing methods such as human visual observation and manual alignment by forming an optical fiber core rod sheathing device, and can automatically realize the centering operation of the optical fiber core rod and the sheathing through the communication connection of the adjustable clamp, imaging component and processor, thereby improving the sheathing efficiency and thus improving the product quality and batch stability.

[0017] In one possible implementation, referring to Figure 2a The imaging assembly may include a first imaging device 31 and a second imaging device 32 arranged in pairs, wherein the shooting directions of the first imaging device 31 and the second imaging device 32 are both perpendicular to the axial direction of the sleeve 5 and are used to shoot the same section of the sleeve 5, and the shooting direction of the first imaging device 31 and the shooting direction of the second imaging device 32 are at a preset angle; A first imaging device 31, used to acquire a first image; The second imaging device 32 is used to acquire a second image.

[0018] Optionally, refer to Figure 2a The imaging assembly may include a first imaging device 31 and a second imaging device 32, both of which have shooting directions pointing to the axis O of the sleeve 5, and the shooting directions are at a preset angle. The best angle of the preset angle is a vertical angle.

[0019] A first image of the ferrule 5 and the optical fiber core rod 6 is captured by the first imaging device 31 , and a second image of the ferrule 5 and the optical fiber core rod 6 is captured by the second imaging device 32 .

[0020] Exemplarily, the first image is an image in the shooting direction of the first imaging device 31, and the second image is an image in the shooting direction of the second imaging device 32. Figure 3a .

[0021] The embodiment of the present application sets up two imaging devices with preset shooting directions to avoid the problem of inaccurate centering caused by judging the position of the sleeve and the optical fiber core rod with a single image. This is because if only the first image is used to judge whether the optical fiber core rod is centered in the sleeve without considering the judgment result of the second image, the problem will occur. Figure 3b That is, in the second image in the shooting direction of the second imaging device 32, the optical fiber core rod 6 is not aligned centrally in the sleeve 5, but when only the first image is viewed, the optical fiber core rod 6 is aligned centrally in the sleeve 5.

[0022] In one possible implementation, referring to Figure 2a The imaging assembly may further include a first bracket A for limiting the first imaging device 31 and a second bracket B for limiting the second imaging device 32, wherein the first bracket A and the second bracket B have synchronous sliding freedom in a direction parallel to the axial direction of the sleeve.

[0023] Optionally, when the shooting directions of the first imaging device and the second imaging device are at right angles, Figure 2a Since the shooting directions of the first imaging device 31 and the second imaging device 32 are both directed to the axial direction O of the sleeve 5, the embodiment of the present application utilizes the assembly of the first bracket A and the second bracket B to form a right-angle bracket, so that the first imaging device 31 and the second imaging device can be linked in real time. At this time, it can be ensured that the position points of the images acquired by the first imaging device 31 and the second imaging device 32 are synchronized.

[0024] In addition, regarding the structure of the support frame 1, the support frame 1 can be as follows Figure 1 As shown in the figure, it consists of two pillars and a semicircular support clamp fixed on each pillar.

[0025] The support frame 1 can also be composed only of Figure 1 The support frame 5 is composed of a support and a semicircular tray fixed on the support. The current support frame 5 needs to be located in the middle part of the sleeve 5. Figure 4a .

[0026] Accordingly, the structures of the first bracket A and the second bracket B can be as follows: Figure 2a shown.

[0027] The structure of the support frame 1 can also refer to Figure 4b , consists of a pillar 11, a support clamp 12 and a support clamp 13, a connecting rod 14 for connecting the pillar 11 and the support clamp 12, and a connecting rod 15 for connecting the pillar 11 and the support clamp 13. The sleeve 5 is placed in the support clamp 12 and the support clamp 13 to support the sleeve 5.

[0028] Similarly, the support frame 1 can also refer to Figure 4c, it only consists of a pillar 11, a supporting clamp 12 and a connecting rod 14 connecting the pillar 11 and the supporting clamp 12. At this time, the supporting clamp 12 is located in the middle position of the sleeve 5 to support the sleeve 5.

[0029] Accordingly, the first bracket A and the second bracket B, refer to Figure 2b The first bracket A is a vertical bracket, and the second bracket B is a bracket at a preset angle (it can be a right-angle bracket or a bracket with other angles), respectively including a horizontal bracket B1 and a horizontal bracket B2, the first end b11 of the horizontal bracket B1 and the first end b21 of the horizontal bracket B2 are fixedly connected to the first end a1 of the first bracket A, the first imaging device 31 is fixedly installed at the second end b12 of the horizontal bracket B1, and the second imaging device 32 is fixedly installed at the second end b22 of the horizontal bracket B2.

[0030] In a possible implementation, the first bracket and the second bracket are assembled on a slide rail 7, and the slide rail is parallel to the axial direction of the sleeve; The processor is used to adjust the positions of the first bracket and the second bracket on the slide rail, and control the first imaging device and the second imaging device to obtain images of the sleeve and the optical fiber core rod at at least two positions, and determine the positional relationship between the sleeve and the optical fiber core rod according to the images of the sleeve and the optical fiber core rod at at least two positions.

[0031] For example, refer to Figure 5 , the axis of the slide rail 7 and the sleeve 5 The second end a2 of the first bracket A is slidably mounted on the slide rail 7. In this embodiment, the first imaging device and the second imaging device can be simultaneously along the axis of the sleeve 5. The direction moves back and forth on the slide rail 7, and images of different positions are obtained during the movement.

[0032] Accordingly, the processor can be used to adjust the positions of the first bracket and the second bracket on the slide rail, and control the first imaging device and the second imaging device to obtain images of the sleeve and the optical fiber core rod at at least two positions to determine the positional relationship between the sleeve and the optical fiber core rod. In one possible implementation, referring to Figure 3a , processor 4 can be used to: Detect the distance between the first edge x1 of the sleeve 5 and the first edge y1 of the optical fiber core rod 6 in the target image and use it as the first distance , the first edge x1 of the sleeve 5 is any long side of the curved surface of the sleeve 5 presented on the target image; the first edge y1 of the optical fiber core rod 6 is the long side closest to the first edge x1 of the sleeve 5; the target image is any image of the first image and the second image.

[0033] Detect the distance between the second edge x2 of the sleeve 5 and the second edge y2 of the optical fiber core rod 6 in the target image and use it as the second distance The second edge x2 of the sleeve 5 is the long side of the sleeve 5 opposite to the first edge x1; the second edge y2 of the optical fiber core rod 6 is the long side closest to the second edge x2 of the sleeve 5.

[0034] First distance based on target image and the second distance Determine the target value; The positional relationship between the sleeve 5 and the optical fiber core rod 6 on the target image is determined based on the target value, and the adjustment information of the sleeve 5 and the optical fiber core rod 6 on the target image is determined using the positional relationship.

[0035] Optionally, after the imaging component 3 sends the acquired images of the sleeve 5 and the optical fiber core rod to the processor 4, the processor 4 is used to: Detect the first distance between the first edge x1 of the sleeve 5 and the first edge y1 of the optical fiber core rod in the target image , and detect the second distance between the second edge x2 of the sleeve 5 and the second edge y2 of the optical fiber core rod in the target image , wherein the target image is any one of the first image and the second image.

[0036] Then use the first distance and the second distance A target value is determined, and the positional relationship between the sleeve 5 and the optical fiber core rod 6 on the target image is determined using the target value, and adjustment information is determined using the positional relationship.

[0037] In a possible implementation, the imaging device may be a CCD camera or a CMOS camera.

[0038] Optionally, the embodiment of the present application utilizes a CCD camera or a CMOS camera to obtain the positional relationship between the optical fiber core rod and the casing.

[0039] In one possible implementation, the target value may include a first target value and the second target value .

[0040] Reference Figure 3a , the processor 4 may also be used for: Detect a first distance at a first target point M in a first image and the second distance , the first target point M is the center point of any long side of the curved surface of the sleeve 5 presented on the first image; Detect the first distance at the second target point N in the second image and the second distance , the second target point N is the center point of any long side of the curved surface of the casing 5 presented on the second image; The first distance at the first target point M in the first image and the second distance The absolute value of the difference is taken as the first target value ; The first distance at the second target point N in the second image and the second distance The absolute value of the difference is taken as the second target value .

[0041] Optionally, the first image and the second image only select the first distance and the second distance of one position point to determine whether the optical fiber core rod and the sleeve are aligned. Figure 3a The first distance from the center point M of any long side and the second distance , and the first distance at M and the second distance The absolute value of the difference is taken as the first target value , accordingly, select Figure 3a The first distance from the center point N of any long side and the second distance , and the first distance at N and the second distance The absolute value of the difference is taken as the first target value .

[0042] In a possible implementation, the target value is a plurality of first target values. and multiple second target values , and the number of the first target values ​​is the same as the number of the second target values.

[0043] Processor 4 may also be used to: Detecting a first distance and a second distance at a first target point set in the first image, where the first target point set is a set of target points divided by a preset step length on any long side of the curved surface of the casing presented in the first image; Detecting a first distance and a second distance at a second target point set in the second image, wherein the second target point set is a set of target points divided by a preset step length on any long side of the curved surface of the casing on the second image, and the number of target points in the first target point set is the same as the number of target points in the second target point set, and the target points are selected at the same time; The absolute value of the difference between the first distance and the second distance at the first target point set in the first image is respectively used as the first target value of the corresponding target point; The absolute value of the difference between the first distance and the second distance at the second target point set in the second image is respectively used as the second target value of the corresponding target point.

[0044] In a possible implementation, the positional relationship may include that the axis O of the sleeve 5 is aligned with the axis o of the optical fiber core rod 6 and that the axis O of the sleeve 5 is not aligned with the axis o of the optical fiber core rod 6 .

[0045] Processor 4 may also be used to: Determine the first target value Is it less than the preset threshold? , and determine the second target value Is it less than the preset threshold? ; If the first target value Less than the preset threshold , and the second target value Less than the preset threshold , then the positional relationship is determined to be that the axis O of the sleeve 5 is aligned with the axis o of the optical fiber core rod 6; If the first target value Greater than the preset threshold , and / or a second target value Greater than the preset threshold , then the positional relationship is determined to be that the axis O of the sleeve 5 and the axis o of the optical fiber core rod 6 are not aligned.

[0046] The preset threshold It is a positive number close to 0, indicating the accuracy of the axis of the optical fiber core rod aligning with the axis of the sleeve. , it indicates that the axis of the sleeve is aligned with the axis of the optical fiber core rod.

[0047] Optionally, determine the first target value Is it less than the preset threshold? , and determine the second target value Is it less than the preset threshold? , if they are both less than , it indicates that the axis O of the sleeve 5 is aligned with the axis o of the optical fiber core rod 6, that is, the positional relationship is that the axis O of the sleeve 5 is aligned with the axis o of the optical fiber core rod 6, refer to Figure 6a ; If the first target value Greater than the preset threshold , and / or a second target value Greater than the preset threshold , it means that the axis O of the sleeve 5 is not aligned with the axis o of the optical fiber core rod 6, that is, the positional relationship is that the axis O of the sleeve 5 is not aligned with the axis o of the optical fiber core rod 6. Figure 6b or Figure 6c .

[0048] In one possible implementation, if the first target value Greater than the preset threshold When the processor 4 is used, the processor 4 can also be used to: The first distance at the first target point M Subtract the second distance , get the first difference ; Determine the first difference Is it greater than 0? If the first difference is greater than 0, it is determined that the adjustment information is to move the optical fiber core rod 6 in the sleeve 5 in the first direction C; the first direction C is from the axis O of the sleeve 5 on the first image to the first edge x1 of the first image; If the first difference If it is less than 0, it is determined that the adjustment information is to move the optical fiber core rod 6 in the sleeve 5 toward the second direction D; the first direction C and the second direction D are opposite directions on the same plane.

[0049] Optionally, for the first target value Greater than the preset threshold When, refer to Figure 3a , calculate the first distance at point M in the first image Subtract the second distance , get the first difference . Determine the first difference Is it less than 0? If the first difference is less than 0, then the adjustment information is determined to be to move the optical fiber core rod 6 in the sleeve 5 in the first direction C; if the first difference If it is greater than 0, it is determined that the adjustment information is that the optical fiber core rod 6 moves in the second direction D in the sleeve 5 .

[0050] In one possible implementation, if the second target value Greater than the preset threshold When the processor 4 is used, the processor 4 can also be used to: Calculate the first distance to the second target point minus the second distance to obtain a second difference; Determine whether the second difference is greater than 0; If the second difference is greater than 0, it is determined that the adjustment information is to move the optical fiber core rod in the sleeve toward a third direction; the third direction is from the axis of the sleeve on the second image to the first edge of the second image; If the second difference is less than 0, the adjustment information is determined to be moving the optical fiber core rod in the sleeve toward a fourth direction; the third direction and the fourth direction are opposite directions on the same plane.

[0051] Optionally, for the first target value Greater than the preset threshold When, refer to Figure 3a , calculate the first distance at point N in the second image Subtract the second distance , and get the second difference . Determine the second difference Is it less than 0? If the second difference is less than 0, then the adjustment information is determined to be to move the optical fiber core rod 6 in the sleeve 5 toward the first direction C; if the second difference If it is greater than 0, it is determined that the adjustment information is that the optical fiber core rod 6 moves in the second direction D in the sleeve 5 .

[0052] In a possible implementation, after receiving the adjustment information, the adjustable fixture 2 moves the optical fiber core rod 6 in the sleeve 5 by a preset step length toward the target direction according to the adjustment information. The determination of the target direction is related to the difference between the first distance and the second distance in the image.

[0053] In addition, the adjustable fixture can also be adjusted by adjusting the amount of advancement of the adjustable fixture to the optical fiber core rod, which is equivalent to the principle of a top screw.

[0054] In a possible implementation, the imaging device is a common camera.

[0055] At this time, only one imaging device is needed, refer to Figure 1 The imaging device is translated on the guide rail along the axis direction of the sleeve to obtain the third image and the fourth image respectively. The third image is referenced Figure 7a , the fourth image reference Figure 7b .

[0056] Reference Figure 7a , detect the distance between the first extension line x11 of the first edge of the sleeve 5 and the first edge y1 of the optical fiber core rod 6 in the third image as the third distance The first extension line x11 of the first edge of the sleeve 5 is an extension line of any long side of the curved surface of the sleeve 5 presented on the third image.

[0057] Reference Figure 7a , detect the distance between the first extension line x21 of the second edge of the sleeve 5 and the second edge y2 of the optical fiber core rod 6 in the third image as the fourth distance The first extension line x21 of the second edge of the sleeve 5 is an extension line of the long side of the sleeve 5 opposite to the first edge.

[0058] Reference Figure 7b , detect the distance between the second extension line x12 of the first edge of the sleeve 5 and the first edge y1 of the optical fiber core rod 6 in the fourth image as the fourth distance The second extension line x12 of the first edge of the sleeve 5 is an extension line of any long side of the curved surface of the sleeve 5 presented on the fourth image.

[0059] Reference Figure 7b , detect the distance between the second extension line x22 of the second edge of the sleeve 5 and the second edge y2 of the optical fiber core rod 6 in the fourth image as the fourth distance The second extension line x22 of the second edge of the sleeve 5 is an extension line of the long side of the sleeve 5 opposite to the first edge.

[0060] Calculate the third distance of the third image and the fourth distance The absolute value of the difference is taken as the third target value .

[0061] Calculate the third distance of the fourth image and the fourth distance The absolute value of the difference is taken as the fourth target value .

[0062] Determine the third target value Is it less than the preset threshold? , and determine the fourth target value Is it less than the preset threshold? .

[0063] If the third target value Less than the preset threshold , and the fourth target value Less than the preset threshold , then the positional relationship is determined to be that the axis O of the sleeve 5 is aligned with the axis o of the optical fiber core rod 6.

[0064] If the third target value Greater than the preset threshold , and / or a fourth target value Greater than the preset threshold , then the positional relationship is determined to be that the axis O of the sleeve 5 and the axis o of the optical fiber core rod 6 are not aligned.

[0065] In a possible implementation, if the placement direction of the sleeve and the optical fiber core rod is as follows: Figure 2b As shown, the device may further include a third bracket, which is a vertical bracket. The imaging component is slidably connected to the third bracket, and the third image and the fourth image can be acquired by sliding up and down on the third bracket. In one possible implementation, referring to Figure 1 The device also includes a base plate 8, and the support frame 1, the slide rail 7 and the processor 4 are fixedly connected to the base plate 8.

[0066] Universal wheels ( Figure 1 (not shown) so that the optical fiber core rod clamp device can move freely.

[0067] The present application provides a fiber core rod sleeve device, which includes a support frame, an adjustable fixture, an imaging component and a processor, wherein the adjustable fixture and the imaging component are both connected to the processor in communication; the support frame is used to support the sleeve and the fiber core rod, wherein the two ends of the fiber core rod are coaxially sleeved in the sleeve by means of the adjustable fixture; the imaging component is used to obtain an image including the sleeve and the fiber core rod, and send the image to the processor; the processor is used to determine the positional relationship between the sleeve and the fiber core rod according to the image, and determine the adjustment information according to the positional relationship, and output the adjustment information to the adjustable fixture; the adjustable fixture is used to adjust the coaxiality of the fiber core rod and the sleeve according to the adjustment information. The present application can automatically adjust the position of the fiber core rod in the sleeve without manual intervention, and the judgment standard for determining the adjustment signal each time is consistent, which can greatly improve the consistency of the batch, the stability of the batch products and the quality of the products.

[0068] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0069] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An optical fiber core rod jacketing device, characterized in that: include: A support frame, an adjustable clamp, an imaging assembly and a processor, wherein the adjustable clamp and the imaging assembly are both communicatively connected to the processor; The support frame is used to support the sleeve and the optical fiber core rod, wherein the two ends of the optical fiber core rod are coaxially sleeved in the sleeve by means of the adjustable clamp; The imaging assembly is used to acquire an image including the sleeve and the optical fiber core rod, and send the image to the processor; The processor is used to determine the positional relationship between the sleeve and the optical fiber core rod according to the image, determine adjustment information according to the positional relationship, and output the adjustment information to the adjustable fixture; The adjustable fixture is used to adjust the coaxiality between the optical fiber core rod and the sleeve according to the adjustment information.

2. The optical fiber core rod jacketing device according to claim 1, characterized in that: The imaging assembly comprises a first imaging device and a second imaging device arranged in pairs, wherein the shooting directions of the first imaging device and the second imaging device are both perpendicular to the axial direction of the sleeve and are used to shoot the same section of the sleeve, and the shooting directions of the first imaging device and the second imaging device are at a preset angle; The first imaging device is used to acquire a first image; The second imaging device is used to acquire a second image.

3. The optical fiber core rod jacketing device according to claim 2, characterized in that: The imaging assembly further comprises a first bracket for limiting the first imaging device and a second bracket for limiting the second imaging device, wherein the first bracket and the second bracket have synchronous sliding freedom in a direction parallel to the axial direction of the sleeve.

4. The optical fiber core rod jacketing device according to claim 3, characterized in that: The first bracket and the second bracket are assembled on a slide rail, and the slide rail is parallel to the axial direction of the sleeve; The processor is used to adjust the positions of the first bracket and the second bracket on the slide rail, and control the first imaging device and the second imaging device to obtain images of the sleeve and the optical fiber core rod at at least two positions, and determine the positional relationship between the sleeve and the optical fiber core rod based on the images of the sleeve and the optical fiber core rod at at least two positions.

5. The optical fiber core rod jacketing device according to claim 2, characterized in that: The processor is used to: The distance between the first edge of the sleeve and the first edge of the optical fiber core rod in the target image is detected and used as the first distance; the first edge of the sleeve is any long side of the curved surface of the sleeve presented on the target image; the first edge of the optical fiber core rod is the long side closest to the first edge of the sleeve; the target image is any one of the first image and the second image; Detecting the distance between the second edge of the sleeve and the second edge of the optical fiber core rod in the target image and using it as the second distance; the second edge of the sleeve is the long side of the sleeve opposite to the first edge; the second edge of the optical fiber core rod is the long side closest to the second edge of the sleeve; determining a target value based on a first distance and a second distance of the target image; The positional relationship between the sleeve and the optical fiber core rod on the target image is determined based on the target value, and adjustment information of the sleeve and the optical fiber core rod on the target image is determined using the positional relationship.

6. The optical fiber core rod jacketing device according to claim 5, characterized in that: The imaging device is a CCD camera or a CMOS camera.

7. The optical fiber core rod jacketing device according to claim 6, characterized in that: The target value includes a first target value and a second target value; the processor is further configured to: Detecting the first distance and the second distance at a first target point in the first image, where the first target point is a center point of any long side of the curved surface of the casing presented in the first image; Detecting the first distance and the second distance at a second target point in the second image, where the second target point is a center point of any long side of the curved surface of the casing presented in the second image; taking the absolute value of the difference between the first distance and the second distance at the first target point in the first image as the first target value; The absolute value of the difference between the first distance and the second distance at the second target point in the second image is used as the second target value.

8. The optical fiber core rod jacketing device according to claim 7, characterized in that: The positional relationship includes that the axis of the sleeve is aligned with the axis of the optical fiber core rod and that the axis of the sleeve is not aligned with the axis of the optical fiber core rod; the processor is further used for: Determine whether the first target value is less than a preset threshold, and determine whether the second target value is less than the preset threshold; If the first target value is smaller than the preset threshold value, and the second target value is smaller than the preset threshold value, determining that the positional relationship is that the axis center of the sleeve is aligned with the axis center of the optical fiber core rod; If the first target value is greater than the preset threshold, and / or the second target value is greater than the preset threshold, it is determined that the positional relationship is that the axis center of the sleeve is not aligned with the axis center of the optical fiber core rod.

9. The optical fiber core rod jacketing device according to claim 8, characterized in that: If the first target value is greater than the preset threshold, the processor is further configured to: Subtract the second distance from the first distance at the first target point to obtain a first difference; Determine whether the first difference is greater than 0; If the first difference is greater than 0, it is determined that the adjustment information is to move the optical fiber core rod in the sleeve toward a first direction; the first direction is from the axis of the sleeve on the first image to the first edge of the first image; If the first difference is less than 0, the adjustment information is determined to be moving the optical fiber core rod in the sleeve toward a second direction; the first direction and the second direction are opposite directions on the same plane.

10. The optical fiber core rod jacketing device according to claim 8, characterized in that: If the second target value is greater than the preset threshold, the processor is further configured to: Calculate the first distance to the second target point minus the second distance to obtain a second difference; Determine whether the second difference is greater than 0; If the second difference is greater than 0, it is determined that the adjustment information is to move the optical fiber core rod in the sleeve toward a third direction; the third direction is from the axis of the sleeve on the second image to the first edge of the second image; If the second difference is less than 0, the adjustment information is determined to be moving the optical fiber core rod in the sleeve toward a fourth direction; the third direction and the fourth direction are opposite directions on the same plane.

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