Displacement device for synchronizing fiber supply and image acquisition and cooperative working method

Abstract

The invention discloses a fiber supply and image acquisition synchronous displacement device and a cooperative working method. The fiber supply and image acquisition synchronous displacement device is characterized by comprising a fiber supply module, a CCD camera, a telecentric lens with a built-in light source, an X-axis linear module, a Y-axis linear module, a synchronous frame, a first Z-axis linear module, a second Z-axis linear module and a base, the Y-axis linear module is arranged on the X-axis linear module; the synchronous frame is arranged on the Y-axis linear module; the first Z-axis linear module and the second Z-axis linear module are both arranged on the synchronous frame. The base is arranged on the first Z-axis linear module, and the CCD camera is arranged on the second Z-axis linear module. The fiber supply module and the CCD camera are arranged on the same synchronous frame for synchronous driving, so that the relative positions of fiber supply, fiber winding and image acquisition can be kept consistent, the CCD camera does not need to rotate and reverse, the image acquisition accuracy can be improved, and the overall structure and motion control are simplified.

Description

Technical Field

[0001] This application relates to the field of optical fiber winding equipment technology, and more specifically, to a displacement device and a collaborative working method for synchronizing fiber supply and image acquisition. Background Technology

[0002] A fully automatic fiber optic winding machine is a specialized automated device for winding optical fibers, primarily used for winding fiber optic rings for fiber optic gyroscopes. It also has wide applications in fiber optic communication and fiber optic sensing. The fully automatic fiber optic winding machine features a worktable, a left spindle mechanism, a right spindle mechanism, a first fiber supply module, a second fiber supply module, a first displacement module, a second displacement module, and a fiber optic ring frame. It can be used to achieve multi-stage symmetrical automated winding of fiber optic rings. For specific details, please refer to published patents CN118929345A, CN118954207A, CN219669819U, and CN211234448U.

[0003] During the fiber optic loop fabrication process, monitoring and correcting the fiber alignment is a crucial step in ensuring the quality of the fiber optic loop. Improper fiber alignment can lead to a decrease in the performance of the fiber optic loop, affecting the accuracy and reliability of the fiber optic gyroscope.

[0004] Current technology involves placing a CCD camera (image acquisition module) and a light source (light source module) facing each other on opposite sides of the fiber optic ring's radial direction. The CCD camera and light source are suspended from the two free ends of a support beam, which is mounted on a frame via a rotation mechanism and an XZ module. The XZ module drives the CCD camera and light source to move along the X-axis and / or Z-axis, while the rotation mechanism rotates the CCD camera and light source left and right. During fiber optic winding, the CCD camera acquires images to obtain the shadow curve at the fiber optic ring tangent, which is then sent to an image processor for analysis to determine if the fiber optic ring is misaligned. This allows for real-time monitoring during fiber optic winding, enabling timely detection and manual or automatic correction of problems. (See also...) Figure 1 However, the existing solutions have the following shortcomings in practical application, which are analyzed below: The following shortcomings have been found in the online monitoring of fiber arrangement during the existing fully automated fiber winding machine: (1) Problem of asynchronous motion During fiber optic cable winding, the CCD camera, light source, and fiber supply module are required to move at a uniform speed along the axial direction (i.e., the X-axis) of the fiber optic ring skeleton. However, the existing CCD camera, light source, and fiber supply module are driven independently by different XZ and XYZ modules. That is, the fiber supply module is driven by the XYZ module, while the light source and CCD camera are driven by the XZ module. Since they work independently and cannot move synchronously, there is a relative displacement error. Therefore, the independent movement of the fiber supply module (driven by the XYZ module) and the CCD camera / light source (driven by the XZ module) leads to a relative displacement error. When acquiring images around the ring, the curve image at the tangent of the fiber optic ring has a large deviation, resulting in large image acquisition deviation (blurring / misalignment), which affects the accuracy of real-time monitoring. (2) Problems with overall suspension, resulting in large size, heavy weight, high inertia, and large vibration error. The existing CCD camera, light source, and XZ module are mounted above the fiber optic ring frame and suspended as a whole on the frame of the fully automated fiber optic looper. Due to its large overall size (the CCD camera, light source, support beam, rotating mechanism, and XZ module are integrated into one unit), it occupies a lot of space and is quite bulky. In particular, since the CCD camera and light source are suspended from the two free ends of the support beam, when the CCD camera and light source move or rotate along the X and Z axes, they have large inertia, large vibration, and large displacement error, which is extremely unfavorable for precise image acquisition. Especially during the winding process, when the CCD camera and light source (both suspended from the free ends of the support beam with a length of 100+ mm on both sides) move together along the X axis, each side will vibrate and sway due to the fact that the mass of the CCD camera and light source is different. The vibration amplitude (swaying degree) generated by each side will be consistent, and the relative position between the CCD camera and light source may shift, which may lead to uneven illumination, affect image contrast, increase the difficulty of subsequent image processing, and cause problems such as blurring or distortion of the acquired fiber optic tangent image. (3) CCD camera commutation problem Before switching between left and right fiber winding, the beam needs to be rotated 180° by a rotating mechanism to interchange the orientation of the CCD camera and the light source. However, before the interchange, the fiber arrangement mechanism located above the fiber ring skeleton also needs to be rotated. Figure 1 (Not shown) Automatic displacement is required to avoid interference during the rotation of the beam; otherwise, interference may occur. Furthermore, because the beam needs to avoid the fiber arrangement mechanism before switching and reset it afterward, the switching process becomes more complex, with longer response times, impacting production efficiency. Therefore, rotating the beam 180° and moving the fiber arrangement mechanism to avoid the obstacle during left and right fiber winding switching increases control complexity, reduces production efficiency, and increases errors. Summary of the Invention

[0005] This invention provides a spindle mechanism and a fully automatic fiber optic winding machine to solve the technical problem that existing fully automatic fiber optic winding machines suffer from large image acquisition deviations and affect the accuracy of real-time monitoring during online monitoring of fiber arrangement in the fiber winding process. This is due to the asynchronous movement between the CCD camera / light source and the fiber supply module, and the large size, heavy weight, high inertia, and large vibration error of the CCD camera / light source, which is suspended as a whole.

[0006] To achieve the above objectives, the technical solution of this invention is as follows: a displacement device for synchronizing fiber supply and image acquisition, characterized in that it includes a fiber supply module, a CCD camera, a telecentric lens with a built-in light source, an X-axis linear module, a Y-axis linear module, a synchronization frame, a first Z-axis linear module, a second Z-axis linear module, and a base; the Y-axis linear module is mounted on the X-axis linear module; the synchronization frame is mounted on the Y-axis linear module; the first Z-axis linear module is mounted on the synchronization frame; the base is mounted on the first Z-axis linear module, and the base is connected to the support of the fiber supply module via a locking mechanism or an electromagnetic attraction mechanism; the second Z-axis linear module is mounted on the synchronization frame; the CCD camera is mounted on the second Z-axis linear module; the CCD camera is connected to the telecentric lens; the telecentric lens is located directly above the fiber supply wheel of the fiber supply module.

[0007] Furthermore, the synchronization frame is in the shape of an I or an inverted T.

[0008] Furthermore, the telecentric lens is model XF-T2X200B.

[0009] Furthermore, the CCD camera is connected to the second Z-axis linear module via a support plate.

[0010] Further, the locking mechanism includes an insertion seat and a receiving socket; the insertion seat and the receiving socket are respectively disposed on the base and the bracket or disposed opposite to each other; the insertion seat is provided with a locking tongue; the locking tongue has a top section, a protruding section, a neck section and a limiting section arranged in sequence; the receiving socket is symmetrically provided with two clamping assemblies; the clamping assembly includes a pressure rod and a pressure spring, the pressure rod is slidably engaged with the receiving socket, the pressure spring is used to generate pressure on the pressure rod perpendicular to the locking tongue, and a ball is provided on the pressing end of the pressure rod; when locking, the balls of the two clamping assemblies symmetrically clamp the neck section of the locking tongue and generate a locking force F1 between the insertion seat and the receiving socket; and the traction force F2 generated when the displacement module drives the base to move along the Z-axis is greater than the locking force F1.

[0011] Furthermore, the receiving socket is provided with an opening for the locking tongue to be inserted and thus avoid obstruction; two clamping assemblies are symmetrically arranged on both sides of the opening on the receiving socket; side holes for sliding engagement with the pressure rod are provided on both sides of the opening; the compression spring is installed in the side hole; the inner end of the compression spring abuts against the bottom surface of the side hole, and the outer end of the compression spring abuts against the pressure rod.

[0012] Furthermore, the pressure rod includes a thin rod segment and a thick rod segment; the junction of the thin rod segment and the thick rod segment has a stepped stop surface; the pressure spring is fitted onto the thin rod segment, and the outer end of the pressure spring abuts against the stepped stop surface.

[0013] Furthermore, the neck segment is symmetrically concave towards the center line, and the contour lines on both sides are arc-shaped and equal to the radius of the sphere; the apex segment is arched or pointed.

[0014] Furthermore, it also includes a positioning pin for positioning between the base and the bracket; wherein the positioning pin is fixed on the base and the bracket is provided with a positioning hole that cooperates with the positioning pin, or vice versa.

[0015] This invention also discloses a method for coordinated fiber supply and image acquisition, characterized by the following steps in using the aforementioned displacement device for synchronized fiber supply and image acquisition: S10, through the operation of the X-axis linear module and / or the Y-axis linear module, simultaneously drives the fiber supply module and the CCD camera to the winding position; S20, start the fiber winding process, the fiber ring skeleton rotates, the fiber supply module supplies fiber, the CCD camera acquires the image of the fiber at the upper edge of the fiber ring of the fiber ring skeleton in real time and sends it to the image processor for processing and analysis; at the same time, the X-axis linear module drives the fiber supply module and the CCD camera to move synchronously at a constant speed along the X-axis until the Nth layer is wound. S30, stop the rotation of the fiber optic ring frame and stop the fiber supply module from supplying fiber; S40, first start the second Z-axis linear module and drive the CCD camera to move up one fiber layer distance (h); at the same time, start the second Z-axis linear module and drive the fiber supply module to move up one compensation distance (s); the compensation distance (s) is less than the fiber layer distance (h). S50, start the next layer of fiber winding again, the fiber ring skeleton rotates, the fiber supply module supplies fiber, the CCD camera acquires the image of the fiber at the upper edge of the fiber ring of the fiber ring skeleton in real time and sends it to the image processor for processing and analysis; at the same time, the X-axis linear module drives the fiber supply module and the CCD camera to move synchronously at a constant speed along the X-axis until the N+th layer is wound.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: First, the displacement device for synchronizing fiber supply and image acquisition in this invention drives the synchronization frame to move along the X-axis and / or Y-axis horizontal plane through a combination of X-axis and Y-axis linear modules, enabling the fiber supply module and CCD camera to move synchronously in the horizontal direction. By sharing the X-axis and Y-axis linear modules to drive the synchronization frame, the fiber supply module and CCD camera achieve rigid synchronization in the horizontal direction. This ensures consistency between the fiber supply module and CCD camera on the horizontal plane during fiber winding in the same layer. Simultaneously, the X-axis displacement of the fiber supply module is synchronized with the X-axis displacement of the light source (the telecentric lens with a built-in light source) and the CCD camera on the horizontal plane. Therefore, this invention overcomes the technical problem of existing fully automatic fiber winding machines where, during online monitoring of fiber arrangement during fiber winding, the asynchronous movement between the CCD camera / light source and the fiber supply module, coupled with the large, heavy, inertial, and vibration-prone overall suspension of the CCD camera / light source, leads to large image acquisition deviations and affects real-time monitoring accuracy. Secondly, the displacement device for synchronizing fiber supply and image acquisition in this invention controls the vertical position of the base and the CCD camera respectively through the first Z-axis linear module and the second Z-axis linear module, ensuring that the height of the two is adjusted synchronously when the fiber winding layer is switched; if the winding layer needs to be switched, the first Z-axis linear module drives the base to move the fiber supply module upward, and at the same time the second Z-axis linear module drives the CCD camera to move upward synchronously, which can realize the different height difference compensation of each. Third, the displacement device for synchronous fiber supply and image acquisition in this invention has only four axes of coordinated motion and is integrated together, thereby simplifying the motion control system, the overall structure and motion control. Fourth, the locking mechanism of the present invention can switch between locking and separating the bracket and the base when the fiber supply module is being hung up. Moreover, the locking force generated by the pure mechanical structure during locking is more reliable, stable and has a low failure rate. Fifth, the locking mechanism of this invention has a locking tongue with a top section, a protruding section, a neck section, and a limiting section arranged sequentially from top to bottom. When the balls of the two clamping components symmetrically clamp the neck section of the locking tongue to lock, the limiting section prevents the ball from moving downward, while the protruding section generates a large resistance when the ball moves upward. The final locking force is formed by the pre-tightening clamping force between the two balls and the neck section and the resistance between the balls and the protruding section, which is used to prevent the insertion seat and the receiving socket from separating relative to each other (i.e., vertical separation), thus achieving mechanical structure cooperation and satisfying the switching of locking and disengaging of the displacement module between the bracket and the base. Furthermore, the locking mechanism can maintain the locking force without external force after locking, firmly fixing the fiber supply module to the base; simultaneously, it can automatically separate when driven by the displacement module along the Z-axis traction movement. The control is simple, very stable, and reliable. Sixth, in the winding process of this invention, the fiber supply module and the CCD camera are driven by the same X-axis linear module, ensuring that their horizontal displacements are completely synchronized and avoiding relative position deviations caused by independent driving. After one layer of fiber is wound, the CCD camera automatically raises the fiber layer height through the second Z-axis linear module, ensuring that its focus is always aligned with the tangent position of the newly wound fiber layer, thereby maintaining the clarity of image acquisition. The image processor, by analyzing the continuously acquired fiber arrangement images, can determine in real time whether there is misalignment or gap abnormality, and adjust the displacement speed or tension parameters of the fiber supply module through a closed-loop control system. Sixth, the method of this invention achieves synchronous displacement of both the CCD camera and the fiber optic cable by sharing a common X-axis drive module, while combining layered positioning of two Z-axis modules to ensure that the image acquisition position always precisely corresponds to the winding layer. This fundamentally eliminates relative displacement errors and solves the image misalignment problem caused by asynchronous movement between the fiber supply and image acquisition equipment during fiber winding, thus improving the accuracy of image analysis and the reliability of fiber arrangement monitoring. Furthermore, through the coordinated control of layered positioning on different Z-axis and synchronous drive on the X-axis, the CCD camera and fiber supply can be automatically maintained at the optimal working distance during multi-level winding, ensuring consistent image acquisition quality and guaranteeing that the fiber angle and direction are in optimal working condition during fiber supply. This also simplifies the complexity of the motion control system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the working principle of existing technologies in fiber winding for fiber supply and image acquisition.

[0018] Figure 2 This is a schematic diagram of the structure of a displacement device for synchronizing fiber supply and image acquisition in this invention during operation.

[0019] Figure 3 This is a perspective view of a displacement device for synchronizing fiber supply and image acquisition according to the present invention.

[0020] Figure 4 This is a right view of a locking mechanism in the present invention when it is in a locked state between the bracket and the base.

[0021] Figure 5 This is a diagram showing the working state of a locking mechanism in the locked state according to the present invention.

[0022] Figure 6 This is a right view of a locking mechanism in the present invention when it is in a separated state between the bracket and the base.

[0023] Figure 7 This is a diagram showing the working state of a locking mechanism in the present invention when it is in the disengaged state.

[0024] Figure 8This is an exploded view of a locking mechanism in this invention.

[0025] Figure 9 This is a half-sectional view of a pressure bar in this invention.

[0026] In the diagram: 1. Fiber supply module, 1-1 bracket, 1-11 positioning hole, 2. CCD camera, 3. Telecentric lens with built-in light source, 4. X-axis linear module, 5. Y-axis linear module, 6. Synchronization frame, 7. First Z-axis linear module, 8. Second Z-axis linear module, 9. Base, 10. Locking mechanism, 10. Insertion seat, 10-1, locking tongue, 10-11, top section, 10-111, protruding section, 10-112, neck section, 10-113, limiting section, 10-114, receiving socket, 10-2, clamping assembly, 10-3, pressure rod, 10-31, compression spring, 10-32, ball, 10-33, locking force F1, traction force F2, positioning pin, 9-1, opening, 10-21, side hole, 10-22, stepped stop surface, 10-312. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments: Example 1: See also Figures 2-8 A displacement device for synchronizing fiber supply and image acquisition, characterized in that it includes a fiber supply module 1, a CCD camera 2, a telecentric lens 3 with a built-in light source, an X-axis linear module 4, a Y-axis linear module 5, a synchronization frame 6, a first Z-axis linear module 7, a second Z-axis linear module 8, and a base 9; the Y-axis linear module 5 is mounted on the X-axis linear module 4; the synchronization frame 6 is mounted on the Y-axis linear module 5; the first Z-axis linear module 7 is mounted on the synchronization frame 6; the base 9 is mounted on the first Z-axis linear module 7, and the base 9 is connected to the support 1-1 of the fiber supply module 1 via a locking mechanism 10 or an electromagnetic attraction mechanism; the second Z-axis linear module 8 is mounted on the synchronization frame 6; the CCD camera 2 is mounted on the second Z-axis linear module 8; the CCD camera 2 is connected to the telecentric lens 3; the telecentric lens 3 is located directly above the fiber supply roller 1-2 of the fiber supply module 1.

[0028] The fiber supply module 1 refers to a device for providing optical fiber. The fiber supply module 1 has a support frame, on which a fiber supply motor, a fiber supply wheel, and a guide wheel assembly are mounted. When the fiber supply module 1 is supplying fiber, its support frame is locked to the base, and the fiber supply module 1 is located on the base with the locking mechanism or electromagnetic attraction mechanism in the locked state. When the fiber supply module 1 is not supplying fiber, it is on a turntable, and the locking mechanism or electromagnetic attraction mechanism is in the disengaged state, meaning the fiber supply module 1 is detached from the base (see published patents CN118929345A, CN118954207A, CN219669819U, CN211234448U, etc.). Since the fiber supply module 1 can adopt an existing structure, it will not be described in detail here.

[0029] The CCD camera refers to an image acquisition device, specifically a high-resolution industrial camera. The telecentric lens refers to an optical lens with a built-in light source, such as the XF-T2X200B model manufactured or sold by Shenzhen Canrui Technology Co., Ltd., used to provide uniform illumination and eliminate perspective distortion. A telecentric lens is an optical device with parallel optical path characteristics and a built-in illumination source; its object-side principal ray is parallel to the optical axis, eliminating perspective errors and ensuring distortion-free images. The XF-T2X200B model has a 2x magnification and a 200mm working distance. When combined with a CCD camera, this telecentric lens achieves a magnification of 50x or higher, enabling it to cover a sufficiently large field of view when imaging fiber optic ring surfaces, while maintaining high resolution to meet the requirements for fiber diameter detection.

[0030] Specifically, the telecentric lens is directly mounted on the optical interface of the CCD camera and has a built-in coaxial light source. During the fiber winding process, when the fiber supply module and the CCD camera move synchronously along the X-axis, the optical axis of the telecentric lens always remains perpendicular to the surface of the fiber ring, avoiding blurring of fiber edge shadows due to viewing angle shift. For example, with a fiber interlayer spacing of 0.1 mm, a 50x magnification ensures that a single frame image covers a winding area with a field of view of at least 5 mm.

[0031] Specifically, the telecentric lens 3 is located directly above the fiber supply rollers 1-2 of the fiber supply module 1. The gap between the fiber supply rollers and the telecentric lens is 100mm. This provides a safety margin and avoids interference when the fiber supply module 1 and the base 9 move upwards.

[0032] Compared to existing technologies, current optical fiber winding machines typically use ordinary industrial lenses paired with external light sources, positioned opposite the CCD camera on the fiber optic ring. This requires separate adjustment of the light source angle and lens focal length, and is prone to optical path misalignment due to mechanical vibration or temperature changes (see...). Figure 1The present invention uses a standardized telecentric lens, whose optical path characteristics and mechanical dimensions have been fixed by predefined parameters, so that stable images can be achieved without on-site debugging, while reducing the space occupied by optical components. The X-axis linear module, Y-axis linear module, first Z-axis linear module 7, and second Z-axis linear module 8 can all employ linear motion mechanisms, such as linear modules. The X-axis linear module and Y-axis linear module are horizontally and vertically distributed; the first Z-axis linear module 7 is vertically mounted on the synchronization frame on one side facing away from the fiber optic ring skeleton, and the second Z-axis linear module 8 is vertically mounted on the synchronization frame on the other side facing the fiber optic ring skeleton.

[0033] The synchronization frame can be a frame structure used to support the first Z-axis linear module 7 and the second Z-axis linear module 8.

[0034] The first Z-axis linear module 7 is used to drive the base to move along the Z-axis (Z-axis lifting motion) independently, while the second Z-axis linear module 8 is used to drive the CCD camera to move along the Z-axis (Z-axis lifting motion) independently, and is used to adjust the Z-axis position of the fiber supply module and the CCD camera respectively.

[0035] Furthermore, the CCD camera 2 is connected to the second Z-axis linear module 8 via a support plate 11. The support plate is a plate-shaped connecting component used to fix and support the CCD camera. It can be made of aluminum alloy or carbon fiber composite material to achieve lightweight and high rigidity. The linear displacement output of the second Z-axis linear module 8 is transmitted to the camera via the support plate, maintaining a rigid connection between the support plate and the second Z-axis linear module 8 during displacement to avoid relative motion errors.

[0036] Specifically, the X-axis linear module and the Y-axis linear module together drive the synchronization frame to move along the X-axis and / or Y-axis horizontal plane, ensuring that the fiber supply module and the CCD camera are synchronously displaced in the horizontal direction. By sharing the X-axis and Y-axis linear modules to drive the synchronization frame, the fiber supply module and the CCD camera achieve rigid synchronization in the horizontal direction. This ensures the consistency of the fiber supply module and the CCD camera in the horizontal plane during fiber winding in the same layer. At the same time, the X-axis displacement of the fiber supply module is synchronized with the X-axis displacement of the light source (the telecentric lens 3 with built-in light source) and the CCD camera. Therefore, this invention solves the image misalignment problem caused by the asynchronous horizontal (XY) movement of independent light sources and lenses. Thus, this invention ensures that the edge sharpness and contrast of the fiber arrangement image always meet the real-time detection requirements during the synchronous displacement of the fiber supply module and the CCD camera, thereby reducing the false judgment rate and improving the correction response speed.

[0037] Furthermore, since the first Z-axis linear module and the second Z-axis linear module are used to control the vertical positions of the base and the CCD camera respectively, it ensures that the heights of both are adjusted synchronously when the fiber winding layer is switched. Specifically, if the winding layer needs to be switched, the first Z-axis linear module drives the base to move the fiber supply module upward, while the second Z-axis linear module drives the CCD camera to move upward synchronously, which can realize the different height differences of each to make up for the difference (refer to the specific content in step S40 of embodiment three).

[0038] In contrast to existing technologies that require controlling 6-axis coordinated motion (see...), Figure 1 ), respectively integrated on two different composite motion modules; and see Figure 2 The present invention has only four axes working together and integrated together, which simplifies the overall structure and motion control, and also greatly eliminates the relative displacement error caused by independent drive.

[0039] Specifically, a displacement device for synchronizing fiber supply and image acquisition can be configured in each of the left and right fiber supply modules 1. Each of the left and right fiber supply modules 1 is equipped with a CCD camera and a telecentric lens 3 with a built-in light source. This allows for synchronized displacement of fiber supply and image acquisition on the corresponding sides during fiber winding. Therefore, there is no need to reverse the left and right orientation of the CCD camera, nor is it necessary to set up a rotation mechanism, or to avoid or reset the fiber arrangement mechanism during reversal. This simplifies process control, improves response time, and increases production efficiency.

[0040] Example 2: This example is a further improvement on Example 1: See also Figures 4-9 The locking mechanism 10 is used to be disposed between the bracket 1-1 and the base 9 on the fiber supply module 1, and enables the bracket 1-1 and the base 9 to be locked together (see...). Figure 4 and Figure 5 ) or separation (see Figure 6 and Figure 7 ).

[0041] See also Figure 6 and Figure 8 In this embodiment, the locking mechanism 10 includes an insertion seat 10-1 and a receiving socket 10-2; the insertion seat 10-1 and the receiving socket 10-2 are respectively disposed on the base 9 and the bracket 1-1 or disposed in opposite directions, wherein the insertion seat 10-1 and the receiving socket 10-2 are respectively disposed on the bracket 1-1 and the base 9.

[0042] See also Figure 6 and Figure 8Specifically, the insertion seat 10-1 is provided with a locking tongue 10-11; the locking tongue 10-11 has a top tip section 10-111, a protruding section 10-112, a neck section 10-113 and a limiting section 10-114 arranged sequentially from top to bottom; See Figures 4-7 Two clamping assemblies 10-3 are symmetrically arranged on the receiving socket 10-2; each clamping assembly 10-3 includes a pressure rod 10-31 and a compression spring 10-32. The pressure rod 10-31 is slidably engaged with the receiving socket 10-2, and the compression spring 10-32 is used to generate pressure on the pressure rod 10-31 in a direction perpendicular to the locking tongue 10-11. A ball 10-33 is provided on the pressing end of the pressure rod 10-31. See Figures 4-5 When locked, the two spheres 10-33 of the clamping components 10-3 symmetrically clamp the neck 10-113 of the locking tongue 10-11 and generate a locking force F1 between the insertion seat 10-1 and the receiving socket 10-2; and the traction force F2 generated when the first Z-axis linear module 7 drives the base 9 to move along the Z-axis is greater than the locking force F1.

[0043] See Figure 1 Furthermore, the base 9 has a support platform and a lower support arm; the upper surface of the support platform is horizontally arranged and is used to horizontally support the bottom surface of the bracket 1-1 so that the bracket 1-1 remains stable.

[0044] The output end of the first Z-axis linear module 7 is connected to the base 9 and is used to drive the base 9 to move along the Z-axis.

[0045] The working principle of the locking mechanism 10 of the present invention is as follows: First, when the fiber supply module is winding the fiber, the fiber supply module is on the displacement module and it is driven to move along the X-axis. At this time: The fiber supply module 1 supplies fiber to the rotating fiber ring skeleton (this is a known technology and will not be described in detail). The fiber supply module 1 is located on the base 9 and is locked and fixed by the locking mechanism 10. When the fiber supply module 1 supplies fiber, it is driven by the displacement module 4 to move along the X-axis, thereby realizing the sequential winding of the current layer of the fiber ring along the axial direction (i.e., the X-axis) of the fiber on the fiber ring skeleton.

[0046] At this time, the base 9 horizontally supports the fiber supply module 1, and the base 9 and the bracket 1-1 of the fiber supply module 1 are locked together by the locking mechanism 10. At this time, the fiber supply module 1 and the base 9 are locked and fixed and will not loosen or shift.

[0047] See Figures 4-5Specifically, during locking, the balls 10-33 of the two clamping assemblies 10-3 symmetrically clamp the neck 10-113 of the latch 10-11, generating a locking force F1 between the insert 10-1 and the receiving socket 10-2; while under the action of the compression spring 10-32, the ball 10-33 at the pressing end of the clamping rod 10-31 abuts against the neck 10-113 of the latch 10-11, and the two clamping assemblies 10-3 symmetrically clamp the latch 10-11. The neck segments 10-113 of the locking tongue 10-11 are engaged to achieve symmetrical clamping; and because the neck segment 10-113 of the locking tongue 10-11 is concave inward relative to the protruding segment 10-112 and the limiting segment 10-114, the middle part is similar to a neck shape, and the compression spring 10-32 provides sufficient pressure to keep the ball 10-33 pressed into the neck segment 10-113 and kept from loosening; when the ball 10-33 of the two clamping components 10-3 are engaged with the neck segment 10-113 of the locking tongue 10-11, a locking force F1 is generated.

[0048] The locking force F1 is a force generated when the locking mechanism 10 is engaged, which prevents the insertion seat 10-1 and the receiving socket 10-2 from separating from each other. The locking force F1 is used to prevent the insertion seat 10-1 and the receiving socket 10-2 from undergoing relative separation movement (i.e., vertical separation).

[0049] Compared with existing known methods (CN118929345A, CN118954207A), the above-mentioned locking mechanism 10 has the following characteristics: First, see Figures 4-5 Since the base 9 and the support 1-1 of the fiber supply module 1 are locked together by the locking mechanism 10, and since the locking mechanism 10 is a purely mechanical structure, it does not require power, control algorithms, or program logic during the locking process. When locking, the balls 10-33 of the two clamping components 10-3 symmetrically clamp the neck 10-113 of the locking tongue 10-11 to generate a locking force, ensuring that the base 9 of the displacement module 4 and the support 1-1 of the fiber supply module 1 will not come loose from each other. This is very reliable, ensures work safety, is not affected by electromagnetic interference, requires no additional energy consumption, is more energy-efficient, and does not require additional switches, sensors, or circuit control, resulting in a lower failure rate.

[0050] Second, when the fiber supply module is not revolving, it is locked on the turntable by the locking assembly. The base 9 on the displacement module and the bracket 1-1 of the fiber supply module 1 are separated from each other (the locking mechanism 10 is in a separated state). At this time: See also Figure 1-2The insertion seat 10-1 is located on the base 9 of the displacement module 3; the receiving socket 10-2 and its two clamping assemblies 10-3 are located on the bracket 1-1 of the fiber supply module 1; and the balls 10-33 of the two clamping assemblies 10-3 are displaced towards each other and come into contact with each other under the action of their respective compression springs 10-32 (see...). Figures 4-5 ,).

[0051] The locking mechanism 10 can switch between locking and unlocking between the bracket 1-1 and the base 9 when the fiber supply module 1 is removed from or hung on the turntable. The locking force is generated by a purely mechanical structure during locking, which is more reliable, stable and has a low failure rate.

[0052] See also Figures 4-9 In this embodiment, the receiving socket 10-2 is provided with an opening 10-21 for the locking tongue 10-11 to be inserted and thus avoid obstruction; two clamping components 10-3 are symmetrically arranged on both sides of the opening 10-21 on the receiving socket 10-2.

[0053] See also Figures 4-9 In this embodiment, side holes 10-22 for sliding engagement with pressure rod 10-31 are provided on both sides of the opening 10-21; the compression spring 10-32 is installed in the side hole 10-22; the inner end of the compression spring 10-32 abuts against the inner bottom surface of the side hole 10-22, and the outer end of the compression spring 10-32 abuts against the pressure rod 10-31.

[0054] See also Figures 4-9 In this embodiment, the pressure rod 10-31 includes a thin rod segment and a thick rod segment; the junction of the thin rod segment and the thick rod segment has a stepped stop surface 10-312; the compression spring 10-32 is fitted onto the thin rod segment, and the outer end of the compression spring 10-32 abuts against the stepped stop surface 10-312. The compression spring 10-32 is in a compressed state, and the compression spring 10-32 can generate sufficient external force to provide sufficient force to the pressure rod 10-31 so that the ball 10-33 can be pressed into the neck segment 10-113 and kept from loosening.

[0055] See also Figures 4-9Furthermore, the neck segment 10-113 is symmetrically recessed towards the center line, and the contour lines on both sides are arc-shaped and have the same radius as the sphere 10-33. The two spheres 10-33 and the neck segment 10-113 are clamped and locked together, and under the action of the compression spring, a sufficient locking force is generated to prevent relative loosening, but it is not completely locked. When the first Z-axis linear module 7 drives the insertion seat 10-1 to move downward relative to the receiving socket 10-2 (at this time, the receiving socket 10-2 and the bracket 1-1 are both fixed on the turntable of the fully automatic fiber optic winding machine), the neck segment 10-113 of the insertion seat 10-1 first disengages from the spheres 10-33 of the two clamping components 10-33, and then is pulled out sequentially along the protruding segment 10-112 and the tip segment 10-111 before being completely separated, and then moves away from the displacement.

[0056] See also Figures 4-9 Specifically, the tip section 10-111 is arched or pointed. When the locking tongue 10-11 is inserted into the socket 10-2 and locked, the tip section 10-111 of the locking tongue 10-11 smoothly pushes open the balls 10-33 of the two clamping components 10-3, and then continues to open them through the protruding section 10-112. Finally, the rear neck section 10-113 engages with the balls 10-33 of the two clamping components 10-3 to lock them in place. The arched or pointed shape of the tip section 10-111 ensures smooth insertion.

[0057] See also Figures 5-8 The present invention has a locking tongue 10-11 consisting of a top section 10-111, a protruding section 10-112, a neck section 10-113, and a limiting section 10-114 arranged sequentially from top to bottom. When the balls 10-33 of the two clamping assemblies 10-3 symmetrically clamp the neck section 10-113 of the locking tongue 10-11 and lock together, the limiting section 10-114 prevents the ball 10-33 from moving downward, while the protruding section 10-112 protrudes and causes the ball 10-33 to generate a large resistance when moving upward. Finally, the locking force is formed by the pre-tight clamping force between the two balls 10-33 and the neck section 10-113 and the resistance between the balls and the protruding section 10-112, which is used to prevent the insertion seat 10-1 and the receiving socket 10-2 from separating relative to each other (i.e., separating vertically), thus achieving a purely mechanical locking structure.

[0058] Compared to existing technologies, traditional clamping assemblies typically use a single rod with an independent limiting component to fix the compression spring, which can lead to problems such as the spring easily detaching or becoming misaligned. This solution simplifies the rod structure and eliminates the need for additional limiting components through an integrated design of stepped abutments and thin and thick rod sections, thereby improving the assembly accuracy and reliability of the clamping assembly. This clamping assembly provides stable clamping of the locking tongue during the locking process, preventing the locking force from weakening or failing due to spring displacement. The stepped stop design keeps the spring in a preset compressed state, ensuring that the locking force remains uniform even after multiple cycles, thereby improving the service life and connection stability of the locking mechanism.

[0059] See Figures 4-7 Furthermore, it also includes a positioning pin 9-1 for positioning between the base 9 and the bracket 1-1. In this embodiment, the positioning pin 9-1 is fixed to the base 9, and the bracket 1-1 is provided with a positioning hole 1-11 that mates with the positioning pin 9-1. When the locking mechanism 10 is locked, the positioning pin 9-1 can improve the relative positional accuracy between the base 9 and the bracket 1-1. See [link to documentation]. Figures 4-5 Simultaneously, when the locking mechanism 10 is disengaged, the positioning pin 9-1 and the positioning hole 1-11 can separate from each other on their own. (See [reference]). Figures 6-7 .

[0060] In other embodiments, the opposite can be achieved, with the positioning pin 9-1 fixed on the bracket 1-1, and the base 9 having a positioning hole that mates with the positioning pin 9-1. The working principle is the same, so it will not be described in detail.

[0061] The positioning pin is a rigid component used for pre-positioning between the base and the bracket. It can be a cylindrical or conical metal pin. Inserted into the positioning hole, it restricts the relative displacement of the base and bracket, ensuring the initial positional accuracy of the locking mechanism before connection. The positioning hole is a hole structure matching the shape of the positioning pin. It can be a circular through hole or a countersunk hole. Through the insertion of the positioning pin, it achieves mechanical alignment between the base and the bracket, reducing assembly errors caused by positional misalignment during locking. Specifically, before the base and bracket are connected, the positioning pin and positioning hole are pre-positioned through mechanical insertion, automatically aligning the insertion seat of the locking mechanism with the socket. For example, when the positioning pin is fixed to the bottom of the base, when the base is driven by the first Z-axis linear module for locking movement, the positioning pin preferentially inserts into the corresponding positioning hole on the bracket to achieve lateral constraint. At this time, the locking tongue and clamping assembly are in a coaxial position, preventing abnormal contact between the locking tongue and clamping assembly due to misalignment of the base and bracket. This pre-positioning mechanism eliminates positional deviations in the X and Y axes before the locking mechanism is fully clamped, improving locking efficiency. It also solves the problem of difficult alignment between the base and the bracket during the locking mechanism connection process. The mechanical pre-positioning mechanism ensures precise alignment between the locking tongue and the clamping components, reducing frictional losses during locking and minimizing abnormal fluctuations in locking force caused by positional deviations, thus enhancing the stability and reliability of the locking mechanism.

[0062] Specifically, when the base moves to contact the bracket via the first Z-axis linear module, the positioning pin preferentially inserts into the positioning hole on the bracket, thus creating a precise constraint between the base and the bracket in the horizontal direction. At this time, the insertion seat and the receiving socket of the locking mechanism automatically enter a coaxial state, and the ball can accurately clamp the neck of the locking tongue.

[0063] Example 3: This example is a further improvement on Example 1 or Example 2: See also Figures 2-3 The synchronous frame is designed in an I-shape or inverted T-shape to ensure a rigid connection between the two Z-axis linear modules.

[0064] The I-shaped structure refers to a symmetrical structure consisting of a horizontal top plate, a horizontal bottom plate, and a support plate that vertically connects the two. It can be made into an integrated structure by welding or casting, and its cross-section is I-shaped to improve bending strength.

[0065] The inverted T-shape refers to an asymmetrical structure consisting of a horizontal base plate and a vertical support plate. It can be achieved through welding, forging, or machining processes, and its cross-section is an inverted T-shape to enhance torsional rigidity. Both of these structures, by optimizing the cross-sectional shape and material distribution, can effectively suppress deformation when supporting X-axis and Y-axis linear modules and Z-axis moving parts. Specifically, the horizontal base plate of the I-shaped or inverted T-shaped synchronous frame serves as the mounting reference surface and connects to the Y-axis linear module. Its vertical support plate extends upward and is rigidly connected to the first and second Z-axis linear modules. When the X-axis linear module drives the Y-axis module to move along the X direction, the overall rigidity of the synchronous frame prevents elastic deformation caused by uneven load distribution, thus ensuring that the fiber supply module and the CCD camera maintain a fixed relative position during X-axis displacement. For example, the moment of inertia of the I-shaped section can reach more than 1.5 times that of the conventional rectangular section, and the angular displacement can be reduced by about 40% when subjected to the same torque. Compared to existing technologies, conventional single-column or flat-plate support structures are prone to elastic deformation during high-speed displacement, leading to relative displacement errors between the fiber supply module and the image acquisition module. In contrast, I-shaped or inverted T-shaped cross-sections, through optimized material distribution, increase structural rigidity by approximately 30% under the same weight, effectively suppressing torsional deformation during X-axis displacement and controlling displacement errors within ±5μm. Through the above technical solution, this application solves the problem of relative displacement error between the fiber supply module and the image acquisition module caused by insufficient rigidity of the supporting structure. This ensures that the CCD camera maintains precise alignment with the fiber supply wheel during X-axis displacement, guaranteeing the clarity and positional accuracy of the acquired images. The improved structural rigidity enables the repeatability of the displacement system to reach the ±3μm level, meeting the monitoring requirements for sub-millimeter-level alignment accuracy during fiber winding.

[0066] Example 4: See also Figure 2 A method for coordinated fiber supply and image acquisition, using a displacement device for synchronized fiber supply and image acquisition as described in any of the above embodiments, includes the following steps: S10, through the operation of the X-axis linear module 4 and / or the Y-axis linear module 5, simultaneously drives the fiber supply module 1 and the CCD camera 2 to move to the winding position; S20, start the fiber winding operation, the fiber ring skeleton rotates, the fiber supply module 1 supplies fiber, the CCD camera 2 collects images of the fiber at the winding point of the fiber ring skeleton in real time and sends them to the image processor for processing and analysis; at the same time, the X-axis linear module 4 drives the fiber supply module 1 and the CCD camera 2 to move synchronously at a constant speed along the X-axis until the Nth layer is wound. S30, stop the rotation of the fiber optic ring frame and stop the fiber supply module 1 from supplying fiber; S40, firstly, start the second Z-axis linear module 8 and drive the CCD camera 2 to move up one fiber layer distance h; simultaneously, start the first Z-axis linear module 7 and drive the fiber supply module 1 to move up one compensation distance s; the compensation distance s is less than the fiber layer distance h; the fiber layer distance s refers to the distance between the center lines of adjacent upper and lower fiber layers in the radial direction along the fiber ring; specifically, r is the fiber radius; S50, start the next layer of fiber winding again, the fiber ring skeleton rotates, the fiber supply module 1 supplies fiber, the CCD camera 2 collects the image of the fiber at the upper edge of the fiber ring of the fiber ring skeleton in real time and sends it to the image processor for processing and analysis; at the same time, the X-axis linear module 4 drives the fiber supply module 1 and the CCD camera 2 to move synchronously at a constant speed along the X-axis until the N+1th layer is wound.

[0067] During the winding process, the fiber supply module and the CCD camera are driven by the same X-axis linear module, ensuring complete synchronization of their horizontal displacement and avoiding relative positional deviations caused by independent driving. After one layer of fiber is wound, the CCD camera automatically raises the fiber layer height via the second Z-axis linear module, ensuring its focus remains aligned with the tangent of the newly wound layer, thus maintaining image clarity. The image processor analyzes continuously acquired fiber arrangement images to determine in real time whether misalignment or gap anomalies exist, and adjusts the displacement speed or tension parameters of the fiber supply module through a closed-loop control system. Compared to existing technologies, this method achieves synchronous displacement of both the CCD camera and the fiber optic cable by sharing a common X-axis drive module. Simultaneously, it combines layered positioning with two Z-axis modules to ensure the image acquisition position always precisely corresponds to the winding layer, fundamentally eliminating relative displacement errors. This solves the image misalignment problem caused by asynchronous movement between the fiber supply and image acquisition equipment during fiber winding, improving image analysis accuracy and fiber arrangement monitoring reliability. Furthermore, through the coordinated control of layered positioning on different Z-axis and synchronous drive on the X-axis, the method automatically maintains the CCD camera and fiber supply at optimal working distances during multi-level winding, ensuring consistent image acquisition quality and guaranteeing that the fiber angle and direction are in optimal working condition during fiber supply. It also simplifies the complexity of the motion control system.

[0068] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A displacement device for synchronizing fiber optic cable supply and image acquisition, characterized in that, It includes a fiber supply module (1), a CCD camera (2), a telecentric lens with built-in light source (3), an X-axis linear module (4), a Y-axis linear module (5), a synchronization frame (6), a first Z-axis linear module (7), a second Z-axis linear module (8), and a base (9); The Y-axis linear module (5) is mounted on the X-axis linear module (4); the synchronous frame (6) is mounted on the Y-axis linear module (5); The first Z-axis linear module (7) is mounted on the synchronous frame (6); the base (9) is mounted on the first Z-axis linear module (7), and the base (9) is connected to the bracket (1-1) of the fiber supply module (1) through a locking mechanism (10) or an electromagnetic attraction mechanism. The second Z-axis linear module (8) is mounted on the synchronization frame (6); the CCD camera (2) is mounted on the second Z-axis linear module (8); the telecentric lens (3) is connected to the CCD camera (2); The telecentric lens (3) is located directly above the fiber supply wheel (1-2) of the fiber supply module (1).

2. The fiber take-up reel assembly according to claim 1, characterized in that: The timing frame (6) is in the shape of an I or an inverted T.

3. The fiber take-up reel assembly according to claim 1, characterized in that: The telecentric lens (3) is model XF-T2X200B.

4. The fiber take-up reel assembly according to claim 1, characterized in that: The CCD camera (2) is connected to the second Z-axis linear module (8) via a support plate (11).

5. The fiber take-up reel assembly according to claim 1, characterized in that: The locking mechanism (10) includes an insertion seat and a receiving socket; the insertion seat and the receiving socket are respectively disposed on the base and the bracket or disposed in opposite directions; The insertion seat is provided with a locking tongue; the locking tongue has a top section, a protruding section, a neck section and a limiting section arranged in sequence; Two clamping assemblies are symmetrically arranged on the receiving socket; the clamping assembly includes a pressure rod and a pressure spring, the pressure rod is slidably engaged with the receiving socket, the pressure spring is used to generate pressure on the pressure rod perpendicular to the locking tongue, and a ball is provided on the pressing end of the pressure rod; When locked, the two spheres of the clamping components symmetrically clamp the neck of the locking tongue and generate a locking force (F1) between the insert and the receptacle. Furthermore, the traction force (F2) generated when the displacement module drives the base to move along the Z-axis is greater than the locking force (F1).

6. The displacement device for synchronizing fiber supply and image acquisition according to claim 5, characterized in that: The receiving socket is provided with an opening for the locking tongue to be inserted and thus avoid obstruction; two clamping assemblies are symmetrically arranged on both sides of the opening on the receiving socket; side holes for sliding engagement with the pressure rod are provided on both sides of the opening; the compression spring is installed in the side hole; the inner end of the compression spring abuts against the bottom surface of the side hole, and the outer end of the compression spring abuts against the pressure rod.

7. The displacement device for synchronizing fiber supply and image acquisition according to claim 5, characterized in that: The pressure rod includes a thin rod segment and a thick rod segment; the junction of the thin rod segment and the thick rod segment has a stepped stop surface; the pressure spring is fitted onto the thin rod segment, and the outer end of the pressure spring abuts against the stepped stop surface.

8. The displacement device for synchronizing fiber supply and image acquisition according to claim 5, characterized in that: The neck segment is symmetrically concave towards the center line, and the outlines on both sides are arc-shaped and equal to the radius of the sphere; the apex segment is arched or pointed.

9. The displacement device for synchronizing fiber supply and image acquisition according to claim 1, characterized in that: It also includes locating pins for positioning between the base and the bracket; The positioning pin is fixed on the base, and the bracket is provided with positioning holes that cooperate with the positioning pin, or vice versa.

10. A method for coordinated fiber supply and image acquisition, using a displacement device for synchronized fiber supply and image acquisition as described in any one of claims 1-9, characterized in that, The work includes the following steps: S10, by working through the X-axis linear module (4) and / or the Y-axis linear module (5), simultaneously drives the fiber supply module (1) and the CCD camera (2) to move to the winding position; S20, start the fiber winding work, the fiber ring skeleton rotates, the fiber supply module (1) supplies fiber, the CCD camera (2) collects the image of the fiber at the upper edge of the fiber ring of the fiber ring skeleton in real time and sends it to the image processor for processing and analysis; at the same time, the X-axis linear module (4) drives the fiber supply module (1) and the CCD camera (2) to move synchronously at a constant speed along the X-axis until the Nth layer is wound. S30, stop the rotation of the fiber optic ring frame and stop the fiber supply module (1) from supplying fiber; S40, first start the second Z-axis linear module (8) and drive the CCD camera (2) to move up one fiber layer distance (h); at the same time, start the first Z-axis linear module (7) and drive the fiber supply module (1) to move up one compensation distance (s); the compensation distance (s) is less than the fiber layer distance (h); S50, start the next layer of fiber winding again, the fiber ring skeleton rotates, the fiber supply module (1) supplies fiber, the CCD camera (2) collects the image of the fiber at the upper edge of the fiber ring of the fiber ring skeleton in real time and sends it to the image processor for processing and analysis; at the same time, the X-axis linear module (4) drives the fiber supply module (1) and the CCD camera (2) to move synchronously at a constant speed along the X-axis until the N+1th layer is wound.

Images