An optical fiber cleaving apparatus

Abstract

This utility model discloses a fiber optic cutting device, comprising an automatic feeding module, a dual electromagnetic clamping module, a cutting execution module, a dynamic tension module, and an intelligent control module. The automatic feeding module drives a linkage slider to push the fiber optic cable, and a closed-loop control system formed by a limit slider and a position sensor achieves precise feeding. The dual electromagnetic clamping module uses electromagnetic adsorption to stably clamp the fiber optic cable and has multiple sets of mounting holes to adjust the spacing of its clamping units, adapting to different cutting length requirements and ensuring cutting quality. The cutting execution module adopts a rotatable circular blade design, allowing for switching of the cutting force point and improving blade utilization. The intelligent control module integrates closed-loop control of the feeding process, dynamic tension adjustment, and cutting stroke, achieving one-button operation throughout the entire process. This utility model, through modular collaborative control and parameterized positioning structure, ensures the flatness of the cut end face while improving the consistency and production efficiency of batch fiber optic processing.

Description

Technical Field

[0001] This utility model belongs to the field of optical fiber cutting, and specifically relates to an optical fiber cutting device. Background Technology

[0002] Fiber cleaving devices are known to apply damage to optical fibers and cut them using tensile force. One such device, as described in patent number 202323344304.3, incorporates a stop and a detection unit, among other features, based on existing devices. When the fiber cleaving device applies damage to the optical fiber using a damage-applying blade, the proper positional relationship between the optical fiber and the retaining plate effectively prevents excessive bending of the fiber. This allows for the production of satisfactory cut surfaces for optical fibers of various specifications.

[0003] However, in practical applications, this fiber optic cleaving device has some drawbacks:

[0004] 1) The fiber optic cutting position needs to be manually adjusted each time, which is time-consuming and results in low batch cutting efficiency;

[0005] 2) Manual feeding is cumbersome and cannot meet the requirements of mass production; in addition, manual feeding is not accurate enough and is prone to positioning deviation. Summary of the Invention

[0006] To address the above issues, this application provides an optical fiber cutting device that achieves a good cut surface while meeting the needs of mass production.

[0007] A fiber optic cleaving device, comprising:

[0008] Automatic feeding module (1) pushes optical fiber to the target position;

[0009] The dual electromagnetic clamping module (2) is used to clamp the optical fiber during the optical fiber cutting process to prevent the optical fiber from slipping.

[0010] The cutting execution module (3) repeatedly applies damage to the target optical fiber, forming microcracks of a predetermined depth on its surface;

[0011] The baffle module (4) provides lateral support for the optical fiber, balances the force, and prevents the optical fiber from bending.

[0012] The dynamic tension module (5) is linked with the dual electromagnetic clamping module (2) to apply axial tensile stress to the optical fiber during cutting in order to achieve its flat breakage.

[0013] The intelligent control module (6) controls the cutting stroke, cutting rate and tension parameters.

[0014] Furthermore, the automatic feeding module (1) includes a motor drive device (11) to provide power for the feeding process; a limiting slider (12), one end of which is connected to the motor drive device (11) and the other end is placed on the position sensor to limit the moving distance of the feeding process; it also includes an optical fiber placement slot (13) for placing optical fibers; and a linkage slider (14) that slides freely in the optical fiber placement slot (13).

[0015] During feeding, the motor transmission device (11) drives the linkage slider (14) to move in the same direction. The lower surface of the linkage slider (14) is attached with optical fiber, which moves in the direction of optical fiber cutting.

[0016] Furthermore, the dual electromagnetic clamping module (2) includes two sets of parallel and spaced electromagnetic clamping units, namely a first clamping unit (21) and a second clamping unit (22). The first clamping unit (21) includes a first electromagnetic module (211) and a first clamping cover plate (212). The first electromagnetic module (211) and the first clamping cover plate (212) are connected by a screw (213). A pressure spring (214) is sleeved on the outside of the screw (213). When not powered, there is a space margin between the first electromagnetic module (211) and the first clamping cover plate (212), and the pressure spring (214) opens upward and presses against the first clamping cover plate (212). When powered, the first electromagnetic module (211) generates electromagnetic attraction, the first clamping cover plate (212) is pressed downward by force, and the pressure spring (214) tightens.

[0017] The second clamping unit (22) includes a second electromagnetic module (221), a second clamping cover plate (222), and a servo motor (223). The second clamping cover plate (222) and the servo motor (223) are connected by a cover plate connector (224). In the non-operating state, the second clamping cover plate (222) is perpendicular to and away from the second electromagnetic module (221); in the operating state, under the combined action of the servo motor (223) and electromagnetic attraction, the second clamping cover plate (222) is pressed tightly against the second electromagnetic module (221), thus clamping the optical fiber.

[0018] The dual electromagnetic clamping module (2) also includes a V-shaped guide groove (23), which is placed in front of the first clamping unit (21) for guiding and preventing the optical fiber from deviating.

[0019] Furthermore, both the first clamping unit (21) and the second clamping unit (22) are fixed to the cutting base plate (7) by bolts, and the cutting base plate (7) is provided with multiple mounting holes. By changing the interval between the first clamping unit (21) and the second clamping unit (22), the fiber cutting length can be adjusted, while also ensuring that the cutting length of the same batch of fibers is consistent, without the need for manual adjustment.

[0020] Furthermore, the cutting execution module (3) includes a cutting blade (31) that applies the cutting marks, a cutting blade conveyor plate (32) connected to the cutting blade (31), and a cutting drive module (33) that drives the cutting blade conveyor plate (32) to move back and forth.

[0021] The cutting blade (31) is detachable and includes a circular cutting blade (311) and a cutting handle (312). The circular cutting blade (311) and the cutting handle (312) are connected by bolts. During the actual cutting process, the circular cutting blade (311) and the cutting handle (312) are fixed in place.

[0022] The circular cutting blade (311) contacts the optical fiber at a specific cutting force point. In practical applications, the cutting force point can be changed by rotating the circular cutting blade, eliminating the need to directly replace the cutting blade and avoiding reduced production efficiency due to blade replacement. Furthermore, existing cutting blades are mostly designed with a straight line shape, limiting the number of usable cutting force points. This application, however, uses a circular blade design, allowing all points on the cutting blade to serve as cutting force points, significantly improving the durability of the cutting execution module (3).

[0023] Furthermore, the dynamic tension module (5) includes a running slide rail (51) that engages with the second pressing unit (22); and a driving device (52) that drives the second pressing unit (22) to move along the running slide rail (51) in the direction of fiber tensioning.

[0024] This utility model adds an automatic feeding device to achieve automatic feeding after the first cut of each batch, simplifying the operation and meeting the production requirements of batch cutting; multiple mounting holes are added to the installation position of the dual electromagnetic clamping module (2) to adjust the installation distance between the two units to adapt to different fiber cutting lengths and ensure the final fiber cutting effect; a rotatable circular blade design is adopted to increase the available cutting force points, avoid frequent blade replacement, improve cutting efficiency, and at the same time increase the durability and service life of the cutting execution module; the intelligent control module integrates closed-loop control of cutting stroke, tension parameters and feeding process, etc., to realize one-click operation of the whole process and improve the efficiency of batch production. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the fiber optic cutting equipment provided in the embodiments of this application;

[0027] Figure 2 This is a schematic diagram of the automatic feeding module provided in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the dual electromagnetic clamping module structure provided in the embodiments of this application;

[0029] Figure 4 This is a schematic diagram of the cutting execution module structure provided in an embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the cutting blade structure provided in an embodiment of this application;

[0031] Figure 6 This is a schematic diagram of the dynamic tension module structure provided in an embodiment of this application.

[0032] Attached image annotations:

[0033] 1-Automatic feeding module; 2-Dual electromagnetic clamping module; 3-Cutting execution module; 4-Baffle module; 5-Dynamic tension module; 6-Intelligent control module; 11-Motor transmission device; 12-Limit slider; 13-Fiber optic placement slot; 14-Linkage slider; 21-First clamping unit; 22-Second clamping unit; 23-V-shaped guide groove; 211-First electromagnetic module; 212-First clamping cover plate; 213-Screw; 214-Pressure spring; 221-Second electromagnetic module; 222-Second clamping cover plate; 223-Servo motor; 224-Cover plate connector; 7-Cutting base plate; 31-Cutting blade; 32-Cutting blade conveyor plate; 33-Cutting drive module; 51-Running slide rail; 52-Drive device. Detailed Implementation

[0034] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0036] Based on the principle of existing known technology of "cutting optical fiber by applying damage and using tensile force, while setting a stop part to obtain a flat cut surface", this application optimizes and improves the optical fiber clamping structure. First, an electromagnetic adsorption type optical fiber clamping method is adopted. Second, multiple sets of mounting and fixing holes are set on the cutting base plate (7) to adjust the installation distance between the two units in the dual electromagnetic clamping module (2) to adapt to different optical fiber cutting lengths and ensure the cutting effect.

[0037] To further optimize the process flow and achieve intelligent operation, this solution adds an automatic feeding module (1) and an intelligent control module (6). Under the premise that the fiber cutting length is consistent within the same batch, the automatic feeding module (1) precisely controls the feeding movement of the fiber along the cutting direction by pre-setting the feeding parameters in the intelligent control module (6). This automated design not only eliminates the tedious operation of manual feeding but also effectively avoids the pushing errors that may occur during manual feeding, significantly improving feeding accuracy. This ensures the consistency of the fiber cutting length within the same batch, significantly improving batch production efficiency and product qualification rate.

[0038] like Figure 1 As shown, a fiber optic cleaving device includes:

[0039] Automatic feeding module (1) pushes optical fiber to the target position;

[0040] The dual electromagnetic clamping module (2) is used to clamp the optical fiber during the optical fiber cutting process to prevent the optical fiber from slipping.

[0041] The cutting execution module (3) repeatedly applies a cutting blade (31) to the target optical fiber to form microcracks of a predetermined depth on its surface;

[0042] The baffle module (4) provides lateral support for the optical fiber to balance the force and prevent the optical fiber from bending.

[0043] The dynamic tension module (5) is linked with the dual electromagnetic clamping module (2) to apply axial tensile stress to the optical fiber after cutting in order to achieve its flat break.

[0044] The intelligent control module (6) controls the cutting stroke, cutting rate and tension parameters, etc.

[0045] like Figure 2 The automatic feeding module (1) includes a motor drive device (11) to provide power for the feeding process; a limiting slider (12), one end of which is connected to the motor drive device (11) and the other end is placed on a position sensor to limit the moving distance of the feeding process; it also includes an optical fiber placement slot (13) for placing optical fibers; and a linkage slider (14), the lower surface of which is pasted with optical fibers and can slide freely in the optical fiber placement slot (13).

[0046] During feeding, the motor transmission device (11) drives the linkage slider (14) to move in the same direction. The lower surface of the linkage slider (14) is attached with optical fiber, which moves in the direction of optical fiber cutting.

[0047] like Figure 3 The dual electromagnetic clamping module (2) comprises two sets of parallel and spaced electromagnetic clamping units, namely a first clamping unit (21) and a second clamping unit (22). The first clamping unit (21) includes a first electromagnetic module (211) and a first clamping cover plate (212). The first electromagnetic module (211) and the first clamping cover plate (212) are connected by a screw (213). A pressure spring (214) is sleeved on the outside of the screw (213).

[0048] When not powered on, the first electromagnetic module (211) is separated from the first pressing cover plate (212), and the pressure spring (214) pushes the first pressing cover plate (212) upward. When powered on, the first electromagnetic module (211) generates electromagnetic attraction, the first pressing cover plate (212) is forced downward to press the optical fiber, and the pressure spring (214) tightens.

[0049] The second clamping unit (22) includes a second electromagnetic module (221), a second clamping cover plate (222), and a servo motor (223). The second clamping cover plate (222) and the servo motor (223) are connected as a whole by a cover plate connector (224). In the normal state, the second clamping cover plate (222) and the second electromagnetic module (221) are perpendicular to each other and far apart; in the working state, the servo motor (223) drives the second clamping cover plate (222) to press down and contact the second electromagnetic module (221). Due to the presence of electromagnetic attraction, the second clamping cover plate (222) is in close contact with the second electromagnetic module (221), achieving the effect of clamping the optical fiber.

[0050] The dual electromagnetic clamping module (2) also includes a V-shaped guide groove (23), which is placed in front of the first clamping unit (21) and is used to guide the optical fiber positioning.

[0051] The first clamping unit (21) is fixed to the cutting base plate (7) by bolts. The cutting base plate (7) is provided with a plurality of mounting and fixing holes for the first clamping unit (21). The fiber cutting length can be adjusted by changing the installation interval between the first clamping unit (21) and the second clamping unit (22) to ensure that the fiber cutting length of the same batch of fibers is consistent and no manual adjustment is required.

[0052] like Figure 4 The cutting execution module (3) includes a cutting blade (31) that applies the cutting marks, a cutting blade conveyor plate (32) connected to the cutting blade (31), and a cutting drive module (33) that drives the cutting blade conveyor plate (32) to move back and forth.

[0053] like Figure 5 The cutting blade (31) is detachable and includes a circular cutting blade (311) and a cutting handle (312). The circular cutting blade (311) and the cutting handle (312) are connected by a locking bolt. During the actual cutting process, the circular cutting blade (311) and the cutting handle (312) are fixed in place.

[0054] The circular cutting blade (311) contacts a specific cutting force point on the optical fiber. In practical applications, the cutting force point can be changed by rotating the circular cutting blade (311) without directly replacing the cutting blade (31), thus avoiding reduced production efficiency due to blade replacement. Furthermore, existing cutting blades are mostly designed with a straight line shape, limiting the number of usable cutting force points. This application, however, uses a circular blade design, allowing all points on the cutting blade to serve as cutting force points, significantly improving the durability of the cutting execution module (3).

[0055] like Figure 6 The dynamic tension module (5) includes a running slide rail (51) that is fitted with the second pressing unit (22); and a driving device (52) that drives the second pressing unit (22) to move along the running slide rail (51) in the direction of fiber tensioning.

[0056] In actual operation, the specific process is as follows:

[0057] (1) After stripping the coating off the optical fiber, it is pasted on the lower surface of the linkage slider (14) and then placed in the optical fiber placement groove (13);

[0058] (2) Set basic parameters through the intelligent control module (6), including cutting stroke, cutting position, cutting frequency and tension parameters, etc.

[0059] (3) Start the intelligent control module (6) with one click.

[0060] (4) The first clamping unit (21) and the second clamping unit (22) simultaneously clamp the optical fiber. The cutting execution module (3) and the baffle module (4) move to their respective set positions, and the dynamic tension module (5) moves to the optical fiber tightening position. The cutting blade (31) of the cutting execution module (3) applies damage to the optical fiber back and forth under the action of the cutting drive device (52), forming microcracks. Then, the optical fiber is cut flat under the tension force of the dynamic tension module (5).

[0061] (5) The first pressing unit (21), the second pressing unit (22), the cutting execution module (3), the baffle module (4) and the dynamic tension module (5) return to their initial positions.

[0062] The automatic feeding module (1) pushes the cut optical fiber a preset distance in the direction of optical fiber cutting.

[0063] Repeat process (4)-(6) to achieve continuous cutting.

[0064] It is important to note that the first cut after loading is used to establish a reference position, and the second cut onwards forms a batch of precise operations.

[0065] Example

[0066] Take cutting an optical fiber with a diameter of 0.4mm and a length of 15mm as an example.

[0067] The installation spacing between the first clamping unit (21) and the second clamping unit (22) in the dual electromagnetic clamping module (2) is adjusted according to the length of the target optical fiber. When the cutting length is 15mm, the cutting length is relatively short, and the first clamping unit (21) needs to be close to the cutting blade (31) to ensure the stability of clamping. Therefore, the mounting and fixing hole closest to the cutting blade (31) is selected.

[0068] The coating on the optical fiber is stripped off, and then it is attached to the lower surface of the linkage slider (14) with double-sided tape and placed in the optical fiber placement groove (13). The optical fiber passes sequentially through the optical fiber placement groove, the V-shaped guide groove, and the groove rails of the first and second clamping units.

[0069] Next, set the basic parameters on the intelligent control module, including cutting position, cutting frequency, feeding distance and tension parameters, and press the start button to start.

[0070] The dual electromagnetic clamping module automatically clamps the optical fiber after being powered on. The first clamping unit clamps the optical fiber using an electromagnet combined with spring preload. The second unit, driven by a servo motor, lowers the second clamping cover plate, which then clamps the optical fiber using electromagnetic attraction.

[0071] The dynamic tension module (5) applies axial tensile stress to the compressed optical fiber according to the preset tension parameters.

[0072] Meanwhile, the cutting execution module (3) and the baffle module (4) slide to their respective positions according to the set parameters. Then, the cutting execution module (3) damages the optical fiber according to the preset cutting parameters. During this process, if the cutting blade is notched or broken, the locking bolt between the cutting blade and the cutting handle can be loosened, the cutting blade can be rotated, and the cutting force point can be changed.

[0073] During the process of applying damage to the optical fiber, the dynamic tension module (5) continues to work, applying axial tensile stress to the optical fiber until the optical fiber breaks.

[0074] After the optical fiber breaks, the cutting execution module (3), the baffle module (4) and the dynamic tension module (5) all return to their initial positions.

[0075] Before the second cut begins, the automatic feeding module (1) starts working, and the motor transmission device (11) pushes the linkage slider (14) to move 15mm in the direction of fiber cutting. This running distance is the fiber cutting length.

[0076] After the material is fed, the cutting execution module (3), the baffle module (4) and the dynamic tension module (5) repeat the previous cutting preparation operation and perform the second cutting.

[0077] This process is repeated automatically, from feeding the material to cutting, to achieve mass production.

[0078] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fiber optic cleaving device, characterized in that, include: The automatic feeding module pushes the optical fiber to the target position; The dual electromagnetic clamping module is used to clamp the optical fiber during the optical fiber cutting process to prevent the optical fiber from slipping. The cutting execution module repeatedly applies damage to the target optical fiber, forming microcracks of a predetermined depth on its surface; The baffle module provides lateral support for the optical fiber to be cut, balances the force, and prevents the optical fiber from bending. The dynamic tension module, in conjunction with the dual electromagnetic clamping module, applies axial tensile stress to the cut optical fiber to achieve a smooth break. The intelligent control module controls the cutting stroke, cutting rate, and tension parameters.

2. The fiber optic cutting device according to claim 1, characterized in that, The automatic feeding module includes a motor drive device to provide power for the feeding process; a limiting slider, one end of which is connected to the motor drive device and the other end is placed on a position sensor to limit the movement distance of the feeding process; and also includes an optical fiber placement slot for placing optical fibers. The linkage slider slides freely within the optical fiber placement slot.

3. The fiber optic cutting equipment according to claim 2, characterized in that, The motor drive device drives the linkage slider to move in the same direction. The lower surface of the linkage slider is attached with optical fiber, and the optical fiber moves in the direction of optical fiber cutting.

4. The fiber optic cutting device according to claim 1, characterized in that, The dual electromagnetic clamping module includes two sets of parallel electromagnetic clamping units, namely a first clamping unit and a second clamping unit; the first clamping unit includes a first electromagnetic module, a first clamping cover plate, a pressure spring and a screw; the first electromagnetic module and the first clamping cover plate are connected by a screw; a pressure spring is sleeved on the outside of the screw; the second clamping unit includes a second electromagnetic module, a second clamping cover plate and a servo motor.

5. The fiber optic cutting device according to claim 4, characterized in that, The first clamping unit achieves dynamic adaptive clamping through electromagnet attraction and pressure spring; the second clamping unit integrates servo motor drive and electromagnetic attraction to achieve the purpose of clamping the optical fiber.

6. A fiber optic cleaving device according to claim 4 or 5, characterized in that, Multiple mounting holes for the first clamping unit are provided on the cutting base plate; the cutting effect of different target optical fibers is ensured by changing the installation distance between the first clamping unit and the second clamping unit.

7. The fiber optic cutting equipment according to claim 1, characterized in that, The cutting execution module includes a cutting blade that applies the cutting marks, a cutting blade conveyor plate connected to the cutting blade, and a cutting drive module that drives the cutting blade conveyor plate to move back and forth; the cutting blade is detachable and includes a circular cutting blade and a cutting blade handle; the circular cutting blade and the cutting blade handle are connected by bolts.

8. The fiber optic cutting device according to claim 1, characterized in that, The intelligent control module integrates closed-loop control of the feeding process, cutting stroke, and dynamic tension setting process, enabling one-click start operation for the entire process.

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