Fiber-optic gyroscope ring winding machine and fiber-optic ring winding method

Abstract

The invention relates to the technical field of fiber-optic gyroscope manufacturing, in particular to a fiber-optic gyroscope ring winding machine and a ring winding method. The fiber-optic gyroscope winding machine comprises a mechanical transmission assembly and electrical equipment, and the electrical equipment controls and drives the mechanical transmission assembly to operate according to a preset program so as to obtain a fiber-optic ring meeting a preset requirement; the mechanical transmission assembly comprises a main shaft, a follow-up shaft, a winding framework and a wire feeding mechanism; the main shaft and the follow-up shaft are respectively provided with a follow-up disc capable of coaxially rotating; each wire feeding mechanism comprises a wire supplying module and a wire arranging module, and the wire arranging module can drive the wire supplying module to move in the axial direction of the main shaft; a locking mechanism used for fixing the wire supply module is arranged on the inner side of the follow-up disc, and the wire arrangement module can drive the wire supply module to ascend and descend in the vertical direction. By adopting the fiber-optic gyroscope ring winding machine provided by the invention, the automation degree of a fiber-optic ring winding process can be improved, uncertain factors of manual operation are reduced, and high precision of a wound fiber-optic ring is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of fiber optic gyroscope manufacturing, and in particular to a fiber optic gyroscope winding machine and a fiber optic winding method. Background Art

[0002] The fiber ring is an important optical device in the fiber optic gyroscope. The accuracy of the fiber ring directly affects the measurement accuracy of the fiber optic gyroscope. The existing fiber optic gyroscope winding device can only perform semi-automatic manual winding, which is subject to a large proportion of human interference and has a high degree of subjective consciousness during manual operation. It is difficult to accurately judge the errors in the winding process, which easily leads to uneven quality of the finished fiber ring. At the same time, due to its low degree of automation, the winding efficiency is low, making it difficult to achieve rapid mass production. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a fiber optic gyroscope ring winding machine and a fiber optic ring winding method to improve the degree of automation of the fiber optic winding process, reduce the uncertainty of manual operation, and ensure the high precision of the wound fiber optic ring.

[0004] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a fiber optic gyroscope ring winding machine, the fiber optic gyroscope ring winding machine includes a mechanical transmission component and an electrical device, the electrical device controls and drives the mechanical transmission component to operate according to a preset program to obtain a fiber optic ring that meets the preset requirements; the mechanical transmission component includes a main shaft, a follower shaft, a ring winding skeleton and a wire feeding mechanism; the main shaft and the follower shaft are coaxially arranged but not connected to each other, and a coaxially rotatable follower disk is respectively provided on the main shaft and the follower shaft; the main shaft is used to fix and drive the ring winding skeleton to rotate and wind the optical fiber, the ring winding skeleton is detachably connected to the main shaft, and the ring winding skeleton is located between the two follower disks; the two wire feeding mechanisms are arranged on both sides of the main shaft with the axis of the main shaft as the axis of symmetry, and any wire feeding mechanism includes a wire feeding module and a wire arranging module, the wire arranging module can drive the wire feeding module to move along the axial direction of the main shaft, and its moving range is between the two follower disks; the inner side of the follower disk is provided with a locking mechanism for fixing the wire feeding module, and the wire arranging module can drive the wire feeding module to rise and fall in the vertical direction.

[0005] Based on the first aspect, in an embodiment of the present application, the fiber optic gyro winding machine also includes: an image information acquisition module, which is arranged near the winding skeleton, and is used to collect the optical fiber winding image on the winding skeleton in all directions and in real time; a first analysis module, which is used to analyze in real time whether the currently wound optical fiber ring is standardized based on the real-time acquired optical fiber winding image; the electrical equipment includes: a first alarm module, which is used to issue a first alarm message when the first analysis module determines that the currently wound optical fiber ring is not standardized.

[0006] Based on the first aspect, in an embodiment of the present application, the fiber optic gyro winding machine further includes a second analysis module, and the electrical equipment includes: an angle information acquisition module, which is used to collect the angle information of the main shaft and the follower shaft in real time; a speed information acquisition module, which is used to collect the speed information of the main shaft and the follower shaft in real time; the second analysis module is used to determine whether the main shaft and the follower shaft rotate synchronously according to the angle information and the speed information; a second alarm module, when the second analysis module determines that the main shaft and the follower shaft do not rotate synchronously, it is used to issue a second alarm information;

[0007] Based on the first aspect, in an embodiment of the present application, the fiber optic gyro winding machine also includes a third analysis module, and the electrical equipment includes: a tension information acquisition module, which is used to collect the tension value of the optical fiber wound on the winding skeleton in real time; the third analysis module is used to determine whether the tension value meets the preset tension requirement; a third alarm module, when the third analysis module determines that the tension value does not meet the preset tension requirement, it is used to issue a third alarm information.

[0008] In a second aspect, the present application provides a fiber optic winding method, which is applicable to the above-mentioned fiber optic gyroscope winding machine, wherein one of the two wire feeding mechanisms is an action mechanism and the other is a standby mechanism; the fiber optic winding method comprises: pre-fixing a winding skeleton that meets the specification requirements to the main shaft; adjusting the height of the wire feeding module in the action mechanism based on the specification parameters of the winding skeleton and its position; setting target fiber optic ring parameters; the target fiber optic ring parameters include the fiber optic winding method, the number of fiber optic ring layers, the number of turns per layer and the fiber tension; setting mechanical action parameters and action flow based on the target fiber optic ring parameters; the mechanical action parameters include : the rotation speed, rotation direction and rotation time of the main shaft and the follower shaft, and the moving speed, moving time, fiber release speed and fiber release tension of the action mechanism; control the main shaft, the follower shaft and the wire feeding mechanism to operate according to the corresponding mechanical action parameters and action flow to obtain the target optical fiber ring; the wire supply module and the wire arrangement module of the action mechanism are fixedly connected, and the wire arrangement module drives the wire supply module to move along the axial direction of the main shaft in accordance with the rotation speed of the main shaft, and supplies optical fiber to the ring winding skeleton while moving, and the wire supply module of the standby mechanism is fixed on one of the follower disks and rotates synchronously with the main shaft or the follower shaft, and the wire arrangement module of the standby mechanism does not move.

[0009] Based on the second aspect, in an embodiment of the present application, the two wire feeding mechanisms are respectively the first wire feeding mechanism and the second wire feeding mechanism; the optical fiber winding method is the quadrupole symmetrical winding method; the action flow of the main shaft, the follower shaft and the wire feeding mechanism includes: Step 1: Winding the first layer of the optical fiber ring; the first wire feeding mechanism is used as the action mechanism, the first wire feeding mechanism supplies optical fiber A to the winding skeleton, the second wire feeding mechanism is used as the standby mechanism, the main shaft uses the axis as the rotation axis, and rotates to wind the optical fiber A in the opposite direction to the side where the first wire feeding mechanism is located. While the main shaft and the follower shaft rotate, the first wire feeding mechanism moves along the axial direction of the main shaft, and the optical fiber A is arranged from the P end to the Q end of the winding skeleton; Step 2: Winding the second layer of the optical fiber ring; the first wire feeding mechanism is used as the standby mechanism, the second wire feeding mechanism is used as the action mechanism, the second wire feeding mechanism supplies optical fiber B to the winding skeleton, the main shaft uses the axis as the rotation axis, and rotates to wind the optical fiber B in the opposite direction to the side where the second wire feeding mechanism is located, the main shaft and the follower shaft While the shaft rotates, the second wire feeding mechanism moves along the axial direction of the main shaft, and the optical fiber B is wound from the P end to the Q end of the ring skeleton; Step 3: Winding the third layer of the optical fiber ring; the first wire feeding mechanism is used as a standby mechanism, and the second wire feeding mechanism is used as an action mechanism. The second wire feeding mechanism supplies optical fiber B to the ring skeleton. The main shaft uses the axis as the rotation axis, and rotates in the opposite direction of the side where the second wire feeding mechanism is located to wind up the optical fiber B. While the main shaft and the follower shaft rotate, the second wire feeding mechanism moves along the axial direction of the main shaft, and the optical fiber B is wound from the Q end to the P end of the ring skeleton; Step 4: Winding the fourth layer of the optical fiber ring; the first wire feeding mechanism is used as an action mechanism, and the first wire feeding mechanism supplies optical fiber A to the ring skeleton, and the second wire feeding mechanism is used as a standby mechanism. The main shaft uses the axis as the rotation axis, and rotates in the opposite direction of the side where the first wire feeding mechanism is located to wind up the optical fiber A. While the main shaft and the follower shaft rotate, the first wire feeding mechanism moves along the axial direction of the main shaft, and the optical fiber A is wound from the Q end to the P end of the ring skeleton.

[0010] Based on the second aspect, in an embodiment of the present application, the fiber optic winding method further includes: all-round real-time acquisition of fiber optic winding images; real-time analysis of whether the currently wound fiber optic ring is standardized based on the real-time acquired fiber optic winding images; if the fiber optic ring is not standardized, a first alarm message is issued, and the main shaft, follower shaft and feeding mechanism are controlled to perform a reverse ring error correction operation until the fiber optic ring meets the specification requirements; adaptively adjust the mechanical action parameters, control the main shaft, follower shaft and feeding mechanism to operate according to the adjusted mechanical action parameters, and obtain the target fiber optic ring; the reverse ring error correction operation includes: controlling the main shaft and follower shaft to rotate in the direction of the side where the action mechanism is located, while the action mechanism retracts and recovers the optical fiber.

[0011] Based on the second aspect, in an embodiment of the present application, if the irregularity of the optical fiber ring indicates that there is a gap between adjacent turns of the same layer of the optical fiber ring on the ring skeleton, controlling the main spindle, the follower shaft and the wire feeding mechanism to operate according to the adjusted mechanical action parameters includes: reducing the fiber releasing speed of the action mechanism when the rotation speeds of the main spindle and the follower shaft remain unchanged and the moving speed of the action mechanism remains unchanged; if the irregularity of the optical fiber ring indicates that there is an overlap between adjacent turns of the same layer of the optical fiber ring on the ring skeleton, controlling the main spindle, the follower shaft and the wire feeding mechanism to operate according to the adjusted mechanical action parameters includes: increasing the fiber releasing speed of the action mechanism when the rotation speeds of the main spindle and the follower shaft remain unchanged and the moving speed of the action mechanism remains unchanged.

[0012] Based on the second aspect, in an embodiment of the present application, the optical fiber winding method also includes: real-time acquisition of angle information of the main shaft and the follower shaft; real-time acquisition of rotation speed information of the main shaft and the follower shaft; judging whether the main shaft and the follower shaft rotate synchronously according to the angle information and the rotation speed information; if the main shaft and the follower shaft do not rotate synchronously, issuing a second alarm message, and controlling the main shaft, the follower shaft and the wire feeding mechanism to suspend operation.

[0013] Based on the second aspect, in an embodiment of the present application, the optical fiber winding method also includes: real-time collection of the tension value of the optical fiber wound on the winding skeleton; judging whether the tension value meets the preset tension requirement; if the tension value does not meet the preset tension requirement, a third alarm message is issued, and the main shaft, follower shaft and feeding mechanism are controlled to perform a reverse ring correction operation until the tension value of the optical fiber ring meets the preset tension requirement; adaptively adjust the fiber release tension of the action mechanism, control the action mechanism to operate according to the adjusted fiber release tension, and obtain the target optical fiber ring.

[0014] The fiber optic gyroscope winding machine provided in the present application can realize highly automated and automatic winding of the fiber optic ring, improve the winding efficiency of the fiber optic ring, avoid the uncertain factors and errors caused by manual operation, improve the stability of the fiber optic ring winding process, and ensure the accuracy of the finished fiber optic ring.

[0015] The optical fiber winding method provided in the present application can quickly generate winding solutions for corresponding optical fiber ring products according to different optical fiber ring specification requirements, so as to meet the market demand for diversified optical fiber ring products and expand the application scope of optical fiber gyroscope winding machines.

[0016] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings:

[0018] Figure 1 A front view of a fiber optic gyroscope winding machine according to an embodiment of the present application is schematically shown;

[0019] Figure 2 A schematic diagram showing the initial state of the first layer of the winding optical fiber ring in the embodiment of the present application is shown;

[0020] Figure 3 A diagram schematically shows the final state of the first layer of the optical fiber ring wound in an embodiment of the present application;

[0021] Figure 4 for Figure 3 A partial enlarged view of the M in the middle;

[0022] Figure 5 A schematic diagram showing the initial state of the second layer of the optical fiber ring wound in an embodiment of the present application;

[0023] Figure 6 The final (initial) state diagram of the second layer (third layer) of the winding optical fiber ring in the embodiment of the present application is schematically shown;

[0024] Figure 7 A diagram schematically shows the final state of the third layer of the winding optical fiber ring in an embodiment of the present application;

[0025] Figure 8 The diagram schematically shows the initial state of the fourth layer of the fiber optic ring wound in the embodiment of the present application;

[0026] Fig. 9 The final state diagram of the fourth layer of the fiber optic ring wound in the embodiment of the present application is schematically shown.

[0027] Description of Reference Numerals

[0028] 1-main shaft; 2-follow-up shaft; 3-follow-up disk; 4-wire supply module; 41-first wire supply module; 42-second wire supply module; 5-wire arrangement module; 51-first wire arrangement module; 52-second wire arrangement module; 6-auxiliary wire arrangement module; 7-ring frame; 8-glue groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0032] Example 1

[0033] This embodiment provides a fiber optic gyroscope ring winding machine, which includes a mechanical transmission component and an electrical device, wherein the electrical device controls and drives the mechanical transmission component to operate according to a preset program to obtain a fiber optic ring that meets preset requirements; the mechanical transmission component includes a main shaft 1, a follower shaft 2, and a ring winding frame 7 (such as Figure 1 As shown) and a wire feeding mechanism; the main shaft 1 and the follower shaft 2 are coaxially arranged but not connected to each other, and a coaxially rotatable follower disk 3 is respectively provided on the main shaft 1 and the follower shaft 2; the main shaft 1 is used to fix and drive the ring frame 7 to rotate and wind the optical fiber, and the ring frame 7 is detachably connected to the main shaft 1, and the ring frame 7 is located between the two follower disks 3; the two wire feeding mechanisms are arranged on both sides of the main shaft 1 with the axis of the main shaft 1 as the axis of symmetry, and any wire feeding mechanism includes a wire feeding module 4 and a wire arranging module 5, and the wire arranging module 5 can drive the wire feeding module 4 to move along the axial direction of the main shaft 1, and its moving range is between the two follower disks 3 (as shown Figure 1 and 2 The inner side of the follower disk 3 is provided with a locking mechanism for fixing the wire supply module 4, and the cable arrangement module 5 can drive the wire supply module 4 to rise and fall in the vertical direction to adjust the height of the wire supply module 4.

[0034] During the optical fiber winding process, one of the two wire feeding mechanisms is the action mechanism and the other is the standby mechanism; the wire feeding module 4 and the wire arranging module 5 of the action mechanism are fixedly connected, and the wire arranging module 5 cooperates with the rotation speed of the main shaft 1 to drive the wire feeding module 4 to move along the axial direction of the main shaft 1, and supplies optical fiber to the winding skeleton 7 while moving, and the wire feeding module 4 of the standby mechanism is fixed on one of the follower disks 3 and rotates synchronously with the main shaft 1 or the following shaft (the relative position between the wire feeding module 4 of the standby mechanism and the winding skeleton 7 can remain unchanged. If an optical fiber is connected between the wire feeding module 4 and the winding skeleton 7, the optical fiber can be prevented from being pulled and damaged), and the wire arranging module 5 of the standby mechanism does not act.

[0035] 1) Main shaft 1, follower shaft 2 and follower plate 3

[0036] The main shaft 1 is the core module of the fully automatic fiber optic gyro winding machine. Its main functions are to install the auxiliary wheel, the winding frame 7, take up the wire, record the rotation angle (winding turns), and fix the wire supply module 4 to be supplied. According to the functional requirements of the main shaft 1, a follower disk 3 is added to the main shaft 1 and the follower shaft 2 respectively to fix the standby wire supply module 4 and rotate synchronously with it.

[0037] The main shaft 1 and the follower shaft 2 adopt the servo motor and synchronous belt transmission mode, and are composed of the main shaft 1 motor, the follower shaft 2 motor, the follower disk 3, the main shaft 1 fixed seat and other structures. Its working principle: before fiber winding, the standby wire supply module 4 is fixed on the corresponding follower disk 3, and the fiber winding begins. The main shaft 1, the follower shaft 2 and the follower disk 3 rotate synchronously to ensure that the optical fiber on the standby side is not damaged while the line is collected. When the fiber winding is paused or ended, the main shaft 1 must stop at the designed position to ensure the symmetry of the optical fiber ring. During the entire rotation process, the motors of the main shaft 1 and the follower shaft 2 must be completely synchronized, otherwise when the standby wire supply module 4 is fixed on the follower disk 3 on the side of the follower shaft 2, the optical fiber will be pulled or broken due to the asynchronism of the two main shaft 1 motors. During the entire fiber winding process, the system reads and displays the current number of winding layers and turns through the code disk. Spindle 1 must have angle control function, angle control accuracy less than 0.1°, end runout less than 0.01mm, and shaft runout less than 0.01mm. Spindle 1 speed greater than 60r / min.

[0038] 2) Positioning of the ring frame 7 and the main shaft 1

[0039] One of the important functions of spindle 1 is to install the skeleton. The skeleton is the carrier of the fiber ring, and its positioning directly affects the quality of the fiber ring. High-precision fiber rings are based on reliable and accurate skeleton positioning. In order to facilitate the operator's operation and meet the requirements of fiber ring system, a reliable and accurate skeleton positioning method needs to be designed. The skeleton of this equipment adopts end face positioning in the axial direction and positioning cone with cone hole positioning in the radial direction. The skeleton is fixed by a locking screw that passes through the auxiliary wheel and the center hole of the skeleton and is directly locked with the spindle 1 thread.

[0040] 3) Cable module 5

[0041] The main function of the cable arrangement module 5 is to realize the cross-wire switching of the cable supply module 4 and the basic cable arrangement positioning of the optical fiber. The cable supply module 4 has two requirements for the cable arrangement module 5 during the cable switching process: first, the movement process of sending and taking the cable supply module 4 must be smooth, which must protect the optical fiber from damage and ensure that the wound optical fiber surface is not affected; second, the movement position must be accurate, which can smoothly realize the transition and docking of the cable supply module 4 between the cable arrangement module 5 and the follower disk 3.

[0042] The actuator of the cable arrangement module 5 adopts a two-axis combined mobile platform combined with a high-precision single-axis robot, and a servo motor is selected to cooperate with a screw module to perform movement. The high-precision single-axis robot can move accurately and smoothly in the direction of each guide rail, and the control system controls the motor to smoothly and accurately drive the two-axis combined mobile platform through the driver to realize the cross-line switching function. Its working principle is: the two axes of the cable arrangement module 5 move in sequence or simultaneously to send the wire supply module 4 fixed on the cable arrangement module 5 to the follower disk 3, or remove the wire supply module 4 fixed on the follower disk 3. The control accuracy does not need to be too high, and the positioning accuracy less than 0.05mm can meet the requirements.

[0043] 4) Supply module 4

[0044] The function of the wire supply module 4 in the fully automatic fiber optic gyro winding machine is to provide the original optical fiber for the winding of the optical fiber ring. The optical fiber ring requires accurate and stable fiber feeding and strict tension control during the winding process. The wire supply module 4 is composed of a fiber release motor, a reducer, a tension control mechanism, a guide wheel, etc. The tension control mechanism is composed of a tension motor, a tension wheel, an encoding shaft, a swing rod, etc.

[0045] Working principle of the wire feeding module 4: the pay-off motor actively pays off the wire, and the tension control mechanism controls the tension during the fiber winding process and maintains the tension in the waiting state. The fiber winding tension is designed according to the fiber ring before winding, and the tension motor controls the winding tension by outputting current. Before winding, the system calculates the initial speed of the pay-off wheel according to the skeleton and fiber splitting ring parameters. During the fiber winding process, the controller adjusts the pay-off speed according to the real-time angle of the encoder at the tail of the tension motor, so as to achieve tension balance within a micro range. "Constant tension" winding of the fiber ring is realized.

[0046] When the wire supply module 4 is ready to supply wire, the wire supply module 4 needs to rotate synchronously with the moving disk 3 and the main shaft 1. During the rotation process, the centrifugal force generated by the rotation will cause the swing arm to swing back and forth. If it is not restricted, it will damage or break the optical fiber. Therefore, in this embodiment, a power-off brake is also added to the tail of the tension motor. In the state of waiting for wire supply, the power-off brake keeps the motor in the position before power-off, ensuring that the optical fiber is not damaged or broken.

[0047] 5) Auxiliary wiring module 6

[0048] Figure 1 In the figure, the auxiliary wiring module 6 refers to the auxiliary wiring mechanism that cooperates with the guide wheel wiring, which includes three parts: CCD detection system, rake wiring and glue coating system. After accurately guiding the optical fiber to the skeleton, the auxiliary wiring module 6 passes through CCD detection and rake wiring to cooperate with the guide wheel module to arrange the wire. During the fiber feeding process, the fiber is glued before winding through the glue groove 8 with a heating system. The auxiliary wiring module 6 is mainly composed of CCD, rake wiring shaft, CCD, rake lifting shaft, rake lifting shaft, rotating table, rake, CCD, light source, glue groove 8, glue groove 8 lifting, glue groove 8 translation, glue injection system, heating system, etc.

[0049] The rake is one of the important submodules in the auxiliary cable arrangement module 6, which is mainly composed of the rake lifting shaft, rotating table, rake, floating guide block, etc. When the fiber winding starts, the rotating table rotates to the rake starting turn side to protect the fiber. After winding several turns (the distance from the end of this layer is about greater than the width of the rake itself), the fiber winding is paused, the rake lifting shaft rises a certain distance, and the rotating table rotates 180 degrees to the rake closing turn side to protect the fiber until the end of this layer. Because it is a glue winding method, there will be resistance and time lag when the rake is separated from the glue, and the floating guide block is added to quickly jump the layer.

[0050] Example 2

[0051] In this embodiment, the fiber optic gyroscope winding machine further includes:

[0052] Image information acquisition module (including light source and CDD, such as Figure 1 As shown), the module is arranged near the ring skeleton 7 to collect the optical fiber winding image on the ring skeleton 7 in all directions and in real time (avoiding missed detection due to blind spots in the field of vision);

[0053] The first analysis module is used to analyze in real time whether the currently wound optical fiber ring is standard based on the real-time collected optical fiber winding image. The process of using the first analysis module to analyze whether the currently wound optical fiber ring is standard can be summarized as follows:

[0054] Calculate the similarity between the target fiber winding image and the non-standard fiber winding image in the historical database (if there are multiple images in the historical data, take the highest similarity value), and record it as non-standard similarity;

[0055] Calculate the similarity between the target fiber winding image and the standard fiber winding image in the historical database (if there are multiple images in the historical data, take the highest similarity value), and record it as the standard similarity;

[0056] If the non-standard similarity is not less than the standard similarity, the currently wound optical fiber ring is considered to be non-standard.

[0057] Exemplarily, a pre-trained image recognition model may be used, and during the recognition process, the collected image data is used as a training sample to further train the model and improve the recognition accuracy of the model.

[0058] The electrical equipment comprises: a first alarm module, which is used to issue a first alarm message when the first analysis module determines that the currently wound optical fiber ring is not standard.

[0059] Furthermore, the fiber optic gyroscope winding machine also includes:

[0060] The second analysis module is used to determine whether the main shaft 1 and the follower shaft 2 rotate synchronously according to the angle information and the speed information. Specifically: 1) determine whether the angle information (rotation angle) of the main shaft 1 and the follower shaft 2 is consistent; 2) determine whether the speed information (rotation speed) of the main shaft 1 and the follower shaft 2 is consistent; if both are consistent, it means that the main shaft 1 and the follower shaft 2 rotate synchronously, otherwise the rotation is not synchronous. If the main shaft 1 and the follower shaft 2 rotate asynchronously, it means that there is a relative displacement between the wire supply module 4 and the winding frame 7 of the standby mechanism, and the main shaft 1 and the follower shaft 2 need to stop immediately to avoid damaging the optical fiber.

[0061] The electrical equipment comprises:

[0062] An angle information acquisition module, used for real-time acquisition of angle information of the main shaft 1 and the follower shaft 2; a speed information acquisition module, used for real-time acquisition of speed information of the main shaft 1 and the follower shaft 2; a second alarm module, used for issuing a second alarm message when the second analysis module determines that the main shaft 1 and the follower shaft 2 do not rotate synchronously;

[0063] Furthermore, the fiber optic gyroscope winding machine also includes:

[0064] The third analysis module is used to determine whether the tension value meets the preset tension requirement. The quality of the optical fiber ring is directly affected by the tension during the optical fiber winding and the tension change. Therefore, it is necessary to pay attention to the tension change during the optical fiber winding process. If there is a situation that exceeds the expected tension value range, it needs to be adjusted in time.

[0065] The electrical equipment comprises:

[0066] The tension information acquisition module is used to collect the tension value of the optical fiber wound on the ring skeleton 7 in real time; the third alarm module is used to issue a third alarm message when the third analysis module determines that the tension value does not meet the preset tension requirement. Exemplarily, the tension information acquisition module includes a tension sensor, and the optical fiber is passed through the tension sensor to measure its tension before the ring skeleton 7 is rotated to rewind the fiber. In addition, the value of the encoding shaft at the tail of the tension motor included in the above-mentioned supply module 4 can also indirectly reflect the tension value of the optical fiber. As mentioned above, the optical fiber ring needs to maintain "constant tension" winding, that is, the fiber rewinding speed of the ring skeleton 7 needs to be equal to the fiber release speed of the supply module 4. Regardless of whether the fiber rewinding speed is greater than the fiber release speed or less than the fiber release speed, it will cause the tension wheel of the supply module 4 to deflect. After the angle change after the encoding shaft at the tail of the tension motor senses, it means that the tension value of the optical fiber does not meet the preset tension requirement.

[0067] The above three alarm modules send out different alarm messages for different operating faults. The staff can promptly confirm the corresponding fault type, determine and execute the corresponding solution according to the different alarm messages, thereby improving the repair efficiency of the equipment.

[0068] Furthermore, the electrical equipment also includes a controller with a built-in parameter adaptive module and an error correction module. The error correction module is used to control the main shaft 1, the follower shaft 2 and the wire feeding mechanism to perform corresponding error correction operations when the above analysis modules detect problems; and the parameter adaptive module is used to update and calculate new mechanical action parameters (rotation speed, rotation direction and rotation time of the main shaft 1 and the follower shaft 2 and the moving speed, moving time, fiber release speed and fiber release tension of the action mechanism), and then control the main shaft 1, the follower shaft 2 and the wire feeding mechanism to operate according to the corresponding new mechanical action parameters.

[0069] Example 3

[0070] This embodiment provides a method for winding an optical fiber, which is applicable to the optical fiber gyroscope winding machines provided in the above embodiments 1 and 2. The optical fiber winding method comprises:

[0071] S1. Pre-fix the winding frame 7 that meets the specification requirements to the main shaft 1 (by fixing the winding frames 7 of different specifications, optical fiber rings of different specifications can be wound, such as optical fiber rings with different numbers of turns and diameters);

[0072] S2. Based on the specification parameters and position of the winding frame 7, the height of the wire supply module 4 in the action mechanism is adjusted (the height difference between the wire supply module 4 and the winding frame 7 will affect the tension of the optical fiber and cause different winding obstacles);

[0073] S3, setting target fiber ring parameters; the target fiber ring parameters include fiber winding method, fiber ring layer number, number of turns per layer and fiber tension;

[0074] S4, setting mechanical action parameters and action flow based on target optical fiber ring parameters; the mechanical action parameters include: rotation speed, rotation direction and rotation time of the main shaft 1 and the follower shaft 2, and movement speed, movement time, fiber release speed and fiber release tension of the action mechanism;

[0075] S5, controlling the main shaft 1, the follower shaft 2 and the wire feeding mechanism to operate according to the corresponding mechanical action parameters and action flow to obtain the target optical fiber ring.

[0076] Specifically, the two wire feeding mechanisms are named as the first wire feeding mechanism and the second wire feeding mechanism respectively; taking the quadrupole symmetrical winding method as an example, the specific winding process is as follows (please refer to Figure 2 to Figure 9 ):

[0077] Step 1: Wind the first layer of the optical fiber ring; use the first wire feeding mechanism as the action mechanism (the first wire feeding mechanism includes the first wire feeding module 41 and the first wire arranging module 51), the first wire feeding mechanism supplies optical fiber A to the ring skeleton 7, the second wire feeding mechanism is used as the standby mechanism (the second wire feeding mechanism includes the second wire feeding module 42 and the second wire arranging module 52), the main shaft 1 uses the axis as the rotation axis, and rotates in the opposite direction of the first wire feeding mechanism to wind the optical fiber A, while the main shaft 1 and the follower shaft 2 rotate, the first wire feeding mechanism moves along the axial direction of the main shaft 1, and the optical fiber A is arranged from the P end of the ring skeleton 7 to the Q end (such as Figure 2 , Figure 3 and Figure 4 );

[0078] Step 2: Winding the second layer of the optical fiber ring; the first feeding mechanism is used as a standby mechanism, and the second feeding mechanism is used as an action mechanism. The second feeding mechanism supplies optical fiber B to the ring frame 7. The main shaft 1 uses the axis as the rotation axis and rotates in the opposite direction of the second feeding mechanism to wind the optical fiber B. While the main shaft 1 and the follower shaft 2 rotate, the second feeding mechanism moves along the axial direction of the main shaft 1, and the optical fiber B is wound from the P end of the ring frame 7 to the Q end (such as Figure 5 and Figure 6 );

[0079] Step 3: Winding the third layer of the optical fiber ring; the first wire feeding mechanism is used as a standby mechanism, and the second wire feeding mechanism is used as an action mechanism. The second wire feeding mechanism supplies optical fiber B to the ring frame 7. The main shaft 1 uses the axis as the rotation axis and rotates in the opposite direction of the second wire feeding mechanism to wind the optical fiber B. While the main shaft 1 and the follower shaft 2 rotate, the second wire feeding mechanism moves along the axial direction of the main shaft 1, and the optical fiber B is wound from the Q end of the ring frame 7 to the P end (such as Figure 6 and Figure 7 );

[0080] Step 4: Winding the fourth layer of the optical fiber ring; the first wire feeding mechanism is used as the action mechanism, the first wire feeding mechanism supplies optical fiber A to the ring frame 7, the second wire feeding mechanism is used as the standby mechanism, the main shaft 1 uses the axis as the rotation axis, and rotates in the opposite direction of the first wire feeding mechanism to wind up the optical fiber A, while the main shaft 1 and the follower shaft 2 rotate, the first wire feeding mechanism moves along the axial direction of the main shaft 1, and the optical fiber A is wound from the Q end of the ring frame 7 to the P end (such as Figure 8 and Fig. 9 ).

[0081] Preferably, the optical fiber wrapping method further comprises:

[0082] A1. All-round real-time acquisition of optical fiber winding images;

[0083] A2. Real-time analysis of whether the currently wound fiber ring is standard based on the real-time collected fiber winding image;

[0084] A31, if the optical fiber ring is not in compliance with the standard, the first alarm message is issued, and the main shaft 1, the follower shaft 2 and the wire feeding mechanism are controlled to perform the reverse ring error correction operation until the optical fiber ring meets the standard requirements;

[0085] A32, adaptively adjust the mechanical action parameters, control the main spindle 1, the follower shaft 2 and the wire feeding mechanism to operate according to the adjusted mechanical action parameters, and obtain the target optical fiber ring; the reverse ring error correction operation includes: controlling the main spindle 1 and the follower shaft 2 to rotate in the direction of the action mechanism, while the action mechanism moves backward and recycles the optical fiber.

[0086] If the optical fiber ring is not standardized, it means that there are gaps between adjacent turns of the same layer of the optical fiber ring on the ring frame 7, and the control spindle 1, the follower shaft 2 and the wire feeding mechanism are operated according to the adjusted mechanical action parameters, including:

[0087] When the rotation speed of the main shaft 1 and the follower shaft 2 remains unchanged and the moving speed of the action mechanism remains unchanged, the fiber release speed of the action mechanism is reduced;

[0088] If the optical fiber ring is not standardized, it means that there are overlaps between adjacent turns of the same layer of the optical fiber ring on the ring frame 7. The operation of the main shaft 1, the follower shaft 2 and the wire feeding mechanism according to the adjusted mechanical action parameters includes:

[0089] When the rotation speeds of the main shaft 1 and the follower shaft 2 remain unchanged and the moving speed of the action mechanism remains unchanged, the fiber releasing speed of the action mechanism is increased.

[0090] Preferably, the optical fiber wrapping method further comprises:

[0091] B1, real-time acquisition of the angle information of the main axis 1 and the follower axis 2 (reducing lag);

[0092] B2, real-time acquisition of the speed information of the main shaft 1 and the follower shaft 2;

[0093] B3, judging whether the main shaft 1 and the driven shaft 2 rotate synchronously according to the angle information and the speed information;

[0094] B41. If the main shaft 1 and the follower shaft 2 do not rotate synchronously, the second alarm message will be issued, and the main shaft 1, the follower shaft 2 and the wire feeding mechanism will be controlled to stop running.

[0095] Preferably, the optical fiber wrapping method further comprises:

[0096] C1, real-time collection of the tension value of the optical fiber wound on the ring frame 7;

[0097] C2. Determine whether the tension value meets the preset tension requirement;

[0098] C31, if the tension value does not meet the preset tension requirement, a third alarm message is issued, and the main shaft 1, the follower shaft 2 and the wire feeding mechanism are controlled to perform the reverse ring error correction operation until the tension value of the optical fiber ring meets the preset tension requirement;

[0099] C32, adaptively adjust the fiber-releasing tension of the action mechanism, control the action mechanism to operate according to the adjusted fiber-releasing tension, and obtain the target optical fiber ring.

[0100] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0101] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0102] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A fiber optic gyroscope winding machine, characterized in that: The fiber optic gyro ring winding machine includes a mechanical transmission component and an electrical device, wherein the electrical device controls and drives the mechanical transmission component to operate according to a preset program to obtain a fiber optic ring that meets preset requirements; The mechanical transmission assembly comprises a main shaft (1), a follower shaft (2), a ring-winding frame (7) and a wire feeding mechanism; The main shaft (1) and the follower shaft (2) are coaxially arranged but not connected to each other, and a coaxially rotatable follower disk (3) is respectively provided on the main shaft (1) and the follower shaft (2); the main shaft (1) is used to fix and drive the ring frame (7) to rotate and reel in the optical fiber, and the ring frame (7) is detachably connected to the main shaft (1), and the ring frame (7) is located between the two follower disks (3); The two wire feeding mechanisms are arranged on both sides of the main shaft (1) with the axis of the main shaft (1) as the symmetry axis. Each wire feeding mechanism comprises a wire feeding module (4) and a wire arranging module (5). The wire arranging module (5) can drive the wire feeding module (4) to move along the axial direction of the main shaft (1), and its moving range is between the two follower disks (3); A locking mechanism for fixing the wire supply module (4) is provided on the inner side of the follower disk (3), and the wire arrangement module (5) can drive the wire supply module (4) to rise and fall in the vertical direction.

2. The fiber optic gyroscope winding machine according to claim 1, characterized in that: The fiber optic gyroscope ring winding machine also includes: An image information acquisition module, which is arranged near the winding frame (7) and is used to acquire an omnidirectional and real-time image of the optical fiber winding on the winding frame (7); The first analysis module is used to analyze in real time whether the currently wound optical fiber ring is standard based on the real-time collected optical fiber winding image; The electrical equipment comprises: The first alarm module is used to issue a first alarm message when the first analysis module determines that the currently wound optical fiber ring is not standard.

3. The fiber optic gyroscope winding machine according to claim 1, characterized in that: The fiber optic gyro winding machine further includes a second analysis module, and the electrical equipment includes: An angle information acquisition module, used for acquiring angle information of the main shaft (1) and the follower shaft (2) in real time; A speed information acquisition module, used for acquiring speed information of the main shaft (1) and the follower shaft (2) in real time; The second analysis module is used to determine whether the main shaft (1) and the follower shaft (2) rotate synchronously based on the angle information and the rotation speed information; The second alarm module is used to issue a second alarm message when the second analysis module determines that the main shaft (1) and the follower shaft (2) are not rotating synchronously.

4. The fiber optic gyroscope winding machine according to claim 1, characterized in that: The fiber optic gyroscope winding machine further includes a third analysis module, and the electrical equipment includes: A tension information acquisition module, used for collecting in real time the tension value of the optical fiber wound on the winding frame (7); The third analysis module is used to determine whether the tension value meets the preset tension requirement; The third alarm module is used to issue a third alarm message when the third analysis module determines that the tension value does not meet the preset tension requirement.

5. A method for wrapping an optical fiber, characterized in that: The fiber optic gyro winding machine according to any one of claims 1 to 4 is applicable, wherein one of the two wire feeding mechanisms is an action mechanism and the other is a standby mechanism; The optical fiber wrapping method comprises: Pre-fixing a ring frame (7) that meets the specification requirements to the main shaft (1); Based on the specification parameters and position of the ring frame (7), the height of the wire supply module (4) in the action mechanism is adjusted; Setting target fiber ring parameters; the target fiber ring parameters include fiber winding method, fiber ring layers, turns per layer, and fiber tension; The mechanical action parameters and action flow are set based on the target optical fiber ring parameters; the mechanical action parameters include: the rotation speed, rotation direction and rotation time of the main shaft (1) and the follower shaft (2) and the moving speed, moving time, fiber release speed and fiber release tension of the action mechanism; Controlling the main shaft (1), the follower shaft (2) and the wire feeding mechanism to operate according to corresponding mechanical action parameters and action processes to obtain a target optical fiber ring; The wire supply module (4) and the wire arrangement module (5) of the action mechanism are fixedly connected, and the wire arrangement module (5) drives the wire supply module (4) to move along the axial direction of the main shaft (1) in coordination with the rotation speed of the main shaft (1), and supplies optical fiber to the ring frame (7) while moving. The wire supply module (4) of the standby mechanism is fixed on one of the follower disks (3) and rotates synchronously with the main shaft (1) or the follower shaft, and the wire arrangement module (5) of the standby mechanism does not act.

6. The optical fiber wrapping method according to claim 5, characterized in that: The two wire feeding mechanisms are respectively a first wire feeding mechanism and a second wire feeding mechanism; the optical fiber winding method is a quadrupole symmetrical winding method; the action flow of the main shaft (1), the follower shaft (2) and the wire feeding mechanism includes: Step 1: Winding the first layer of the optical fiber ring; the first wire feeding mechanism is used as the action mechanism, the first wire feeding mechanism supplies optical fiber A to the ring frame (7), the second wire feeding mechanism is used as the standby mechanism, the main shaft (1) uses the axis as the rotation axis, and rotates in the opposite direction of the first wire feeding mechanism to wind the optical fiber A, while the main shaft (1) and the follower shaft (2) rotate, the first wire feeding mechanism moves along the axial direction of the main shaft (1), and the optical fiber A is arranged from the P end to the Q end of the ring frame (7); Step 2: Winding the second layer of the optical fiber ring; the first wire feeding mechanism is used as a standby mechanism, and the second wire feeding mechanism is used as an action mechanism. The second wire feeding mechanism supplies the optical fiber B to the ring frame (7). The main shaft (1) rotates with its axis as the rotation axis and rotates in the direction opposite to the side where the second wire feeding mechanism is located to wind the optical fiber B. While the main shaft (1) and the follower shaft (2) rotate, the second wire feeding mechanism moves along the axial direction of the main shaft (1), and the optical fiber B is wound from the P end to the Q end of the ring frame (7); Step 3: Winding the third layer of the optical fiber ring; the first wire feeding mechanism is used as a standby mechanism, and the second wire feeding mechanism is used as an action mechanism. The second wire feeding mechanism supplies the optical fiber B to the ring frame (7). The main shaft (1) rotates with its axis as the rotation axis and rotates in the direction opposite to the side where the second wire feeding mechanism is located to wind the optical fiber B. While the main shaft (1) and the follower shaft (2) rotate, the second wire feeding mechanism moves along the axial direction of the main shaft (1), and the optical fiber B is wound from the Q end to the P end of the ring frame (7); Step 4: Winding the fourth layer of the optical fiber ring; the first wire feeding mechanism is used as the action mechanism to supply optical fiber A to the ring frame (7), and the second wire feeding mechanism is used as the standby mechanism. The main shaft (1) rotates with its axis as the rotation axis and rotates in the opposite direction to the side where the first wire feeding mechanism is located to wind up the optical fiber A. While the main shaft (1) and the follower shaft (2) rotate, the first wire feeding mechanism moves along the axial direction of the main shaft (1), and the optical fiber A is wound from the Q end to the P end of the ring frame (7).

7. The optical fiber wrapping method according to claim 5, characterized in that: The optical fiber wrapping method further comprises: All-round real-time acquisition of optical fiber winding images; Based on the real-time acquisition of optical fiber winding images, real-time analysis is performed to determine whether the currently wound optical fiber ring is standard; If the optical fiber ring is not in compliance with the standard, a first alarm message is issued, and the main shaft (1), the follower shaft (2) and the wire feeding mechanism are controlled to perform a reverse ring error correction operation until the optical fiber ring meets the standard requirements; the mechanical action parameters are adaptively adjusted, and the main shaft (1), the follower shaft (2) and the wire feeding mechanism are controlled to operate according to the adjusted mechanical action parameters to obtain a target optical fiber ring; The loop back-and-forth error correction operation includes: The main shaft (1) and the follower shaft (2) are controlled to rotate in the direction of the side where the action mechanism is located, and at the same time the action mechanism moves backward and retracts the optical fiber.

8. The optical fiber wrapping method according to claim 7, characterized in that: If the optical fiber ring is not standardized, it means that there is a gap between adjacent turns of the optical fiber ring on the ring frame (7) at the same layer, and the control main shaft (1), the follower shaft (2) and the wire feeding mechanism operate according to the adjusted mechanical action parameters, including: When the rotation speeds of the main shaft (1) and the follower shaft (2) remain unchanged and the moving speed of the action mechanism remains unchanged, the fiber-releasing speed of the action mechanism is reduced; If the optical fiber ring is not standardized, it means that there is overlap between adjacent turns of the same layer of the optical fiber ring on the ring frame (7), and the main shaft (1), the follower shaft (2) and the wire feeding mechanism operate according to the adjusted mechanical action parameters, including: When the rotation speeds of the main shaft (1) and the follower shaft (2) remain unchanged and the moving speed of the action mechanism remains unchanged, the fiber releasing speed of the action mechanism is increased.

9. The optical fiber wrapping method according to claim 5, characterized in that: The optical fiber wrapping method further comprises: Collecting the angle information of the main shaft (1) and the follower shaft (2) in real time; Real-time acquisition of rotation speed information of the main shaft (1) and the follower shaft (2); Determining whether the main shaft (1) and the follower shaft (2) rotate synchronously according to the angle information and the rotation speed information; If the main shaft (1) and the follower shaft (2) do not rotate synchronously, a second alarm message is issued, and the main shaft (1), the follower shaft (2) and the wire feeding mechanism are controlled to stop running.

10. The optical fiber wrapping method according to claim 5, characterized in that: The optical fiber wrapping method further comprises: Real-time collection of the tension value of the optical fiber wound on the ring frame (7); Determining whether the tension value meets the preset tension requirement; If the tension value does not meet the preset tension requirement, a third alarm message is issued, and the main shaft (1), the follower shaft (2) and the feeding mechanism are controlled to perform a reverse loop error correction operation until the tension value of the optical fiber ring meets the preset tension requirement; the fiber release tension of the action mechanism is adaptively adjusted, and the action mechanism is controlled to operate according to the adjusted fiber release tension to obtain a target optical fiber ring.

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