Automatic lifting cutting device

Abstract

The utility model discloses an automatic lifting cutting device, which relates to the technical field of optical fiber cutting and particularly comprises an electric lifting execution structure, a tool bit fixing structure and a guide reset structure. The tool bit fixing structure comprises a tool bit bearing platform, a baffle connected with the tool bit bearing platform, a tool bit fixing shaft movably connected with the middle of the top end of the tool bit bearing platform and a displacement sensor connected with one side of the top end of the tool bit bearing platform. The electric lifting executing mechanism comprises a motor mounting plate, an ejector rod movably connected with the motor mounting plate, a second servo motor connected with the motor mounting plate and a ball screw movably connected with the motor mounting plate, and the ejector rod is located below the baffle. According to the automatic lifting cutting device, real-time dynamic adjustment of working coordinates of the tool bit is achieved through the digital control system, intelligent matching of cutting parameters is achieved, and the adaptability and cutting precision of the device to optical fibers of different specifications are improved.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic cutting technology, specifically an automatic lifting and cutting device. Background Technology

[0002] When using fiber optic cleaving equipment, adjusting the distance between the fiber and the cleaving blade is a core technical aspect to ensure cleaving quality. In related technologies, the position adjustment methods for the fiber optic cleaving blade include: before cleaving, the cleaving blade is located at a reference position; during cleaving, the blade displacement needs to be adjusted to a specific cleaving coordinate (determined by the fiber diameter and the blade vibration amplitude) via the cleaving blade adjustment structure; after cleaving, the cleaving blade returns to the reference position. However, in practical applications, this method results in the cleaving blade reciprocating between the reference position and the cleaving point, leading to idle travel time loss, reduced cleaving efficiency, and wear on the cleaving blade adjustment structure during repeated resets. Multiple cleavings result in accumulated errors, affecting cleaving accuracy and making it difficult to guarantee process consistency. Utility Model Content

[0003] This invention provides an automatic lifting and cutting device that solves the problems of low cutting efficiency and difficulty in ensuring the consistency of cutting process mentioned in the background art.

[0004] This utility model provides the following technical solution: an automatic lifting and cutting device, comprising an electric lifting execution structure, a cutter head fixing structure, and a guide reset structure. The cutter head fixing structure is connected to the guide reset structure. The cutter head fixing structure includes a cutter head bearing platform, a baffle connected to the cutter head bearing platform, a cutter head fixing shaft movably connected to the middle of the top of the cutter head bearing platform, and a displacement sensor connected to one side of the top of the cutter head bearing platform. The electric lifting execution mechanism includes a motor mounting plate, a push rod movably connected to the motor mounting plate, a second servo motor connected to the motor mounting plate, and a ball screw movably connected to the motor mounting plate. The push rod is located below the baffle. The output shaft of the second servo motor is connected to a first gear. The bottom end of the ball screw is provided with a second gear meshing with the first gear. The outer ring of the ball screw is threaded with a ball nut. The push rod is connected to the ball nut.

[0005] Preferably, a servo motor is provided at the bottom of the cutter head support platform, and the cutter head fixing shaft is driven by the servo motor.

[0006] Preferably, the guide reset structure includes a fixing plate, and linear guide rail assemblies are provided at both ends of the fixing plate near the cutter head fixing structure. The fixing plate is connected to the cutter head carrying platform through the linear guide rail assemblies. A tension spring is provided in the middle of the fixing plate, and the other end of the tension spring is connected to the cutter head carrying platform.

[0007] Preferably, the cutter head support platform is in contact with the fixed plate.

[0008] Preferably, the electric lifting actuator, the cutter head fixing structure, and the guide reset structure are all in an independent state.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. This automatic lifting and cutting device achieves real-time dynamic adjustment of the working coordinates of the cutter head through a digital control system, realizing intelligent matching of cutting parameters and improving the equipment's adaptability to different specifications of optical fibers and cutting accuracy.

[0011] 2. In this automatic lifting and cutting device, the synergistic effect of the cutter head fixing structure and the electric lifting actuator enables the top rod and the baffle to form a mechanical coupling. The driving torque is transmitted to the cutter head bearing platform through the rigid linkage mechanism, realizing precise displacement control of the device along the Z-axis. When the displacement sensor detects that the actuator has reached the preset stroke threshold, the position locking mechanism of the closed-loop control system is triggered. The reset distance of the cutting blade can be controlled by the displacement sensor, realizing dynamic reset of cutting optical fibers of different diameters, reducing idle stroke time loss and improving cutting efficiency.

[0012] 3. This automatic lifting and cutting device, through the setting of the guide and reset structure, can provide multiple guidance for the cutter head fixing structure, ensuring that the cutter assembly moves in the Z-axis direction. At the same time, the elastic reset function eliminates system backlash, ensuring the movement stability of the equipment during continuous operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model in use;

[0014] Figure 2 The structure of this utility model Figure 1 Diagram showing the view from below;

[0015] Figure 3 This is a schematic diagram showing the connection between the cutter head fixing structure and the guide reset structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the cutter head fixing structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the electric lifting actuator structure of this utility model.

[0018] In the diagram: 1. Fixing plate; 2. Motor mounting plate; 3. Cutter head bearing platform; 4. Servo motor one; 5. Gear one; 6. Ball screw; 7. Gear two; 8. Cutter head fixing shaft; 9. Displacement sensor; 10. Servo motor two; 11. Baffle; 12. Push rod; 13. Tension spring; 14. Linear guide rail assembly. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model provides an embodiment: Please refer to Figures 1-5 An automatic lifting and cutting device includes an electric lifting execution structure, a cutter head fixing structure, and a guide reset structure. The electric lifting execution structure is independent of the cutter head fixing structure and the guide reset structure. This arrangement facilitates the replacement of the electric lifting execution structure. The electric lifting execution structure includes a motor mounting plate 2, a push rod 12 movably connected to the motor mounting plate 2, a servo motor 10 connected to the motor mounting plate 2, and a ball screw 6 movably connected to the motor mounting plate 2. The output shaft end of the servo motor 10 is connected to a gear 5 via a reducer. The bottom end of the ball screw 6 is provided with a gear 7 that meshes with the gear 5. A ball nut is threaded onto the outer ring of the ball screw 6. The push rod 12 is connected to the ball nut. Through the electric lifting actuator, the rotation of servo motor 10 drives gear 5, which in turn drives gear 7, which in turn drives ball screw 6. The rotation of ball screw 6 causes the threaded ball nut to move vertically. The ball nut is movably connected to motor mounting plate 2. When the ball nut moves, it drives the connected push rod 12 to move. In other words, under the action of servo motor 10, push rod 12 can move vertically. The model of servo motor 10 can be selected according to requirements and is not limited here.

[0021] The cutter head fixing structure is connected to the guide reset structure. The guide reset structure includes a fixing plate 1. Linear guide rail assemblies 14 are provided at both ends of the fixing plate 1 near the cutter head fixing structure. The fixing plate 1 is connected to the cutter head fixing structure and the guide reset structure through the linear guide rail assemblies 14. The guide reset structure includes a fixing plate 1. Linear guide rail assemblies 14 are provided at both ends of the fixing plate 1 near the cutter head fixing structure. The fixing plate 1 is connected to the cutter head fixing structure through the linear guide rail assemblies 14, and the cutter head fixing structure is in contact with the fixing plate 1. With this configuration, the cutter head fixing structure can move in the direction of the height of the fixing plate 1 under the action of external force. The cutter head fixing structure in this application moves in the vertical direction, and during the movement of the cutter head fixing structure, the linear guide rail assembly 14 and the fixing plate 1 simultaneously guide the cutter head fixing structure. The multiple guidance settings can prevent the cutter head fixing structure from deviating and ensure the precise control of the movement direction of the cutter head fixing structure.

[0022] A tension spring 13 is provided in the middle of the fixed plate 1. The other end of the tension spring 13 is connected to the cutter head fixing structure. With the setting of the tension spring 13, when the cutter head fixing structure moves upward, the tension spring 13 is in an extended state. When the cutter head fixing structure is reset, the tension spring 13 rebounds. The guide reset structure eliminates the system backlash through the elastic reset function, ensuring the movement stability of the equipment in continuous operation.

[0023] The cutter head fixing structure includes a cutter head bearing platform 3, which contacts a fixing plate 1. The cutter head bearing platform 3 is connected to the fixing plate 1 via a linear guide rail assembly 14. A cutter head fixing shaft 8 is movably connected to the middle of the top of the cutter head bearing platform 3. A servo motor 4 is provided on one side of the bottom of the cutter head bearing platform 3. The cutter head fixing shaft 8 is driven by the servo motor 4. In one embodiment of this application, the output shaft end of the servo motor 4 is connected to a sprocket 1 via a reducer. A sprocket 2 is fixedly connected to the outer ring of the cutter head fixing shaft 8. The sprocket 1 and sprocket 2 are connected by a transmission chain. When the servo motor 4 is working, it can drive the sprocket 1 to rotate. The sprocket 1 drives the sprocket 2 to rotate via the transmission chain. The sprocket 2 drives the cutter head fixing shaft 8 to rotate. The cutter head fixing shaft 8 drives the cutting blade connected to it to rotate. In use, this device can cut optical fibers.

[0024] A baffle 11 is provided on one side of the cutter head support platform 3, and a push rod 12 is located below the baffle 11. When the push rod 12 contacts the baffle 11 and moves upward, the push rod 12 can drive the cutter head support platform 3 to move upward through the baffle 11. A displacement sensor 9 is provided on one side of the top of the cutter head support platform 3. By setting the displacement sensor 9, the displacement of the cutter head fixing shaft 8 can be monitored in real time to ensure the displacement accuracy of the cutter head fixing shaft 8. This enables the present application to achieve precise cutting during use, and the reset distance of the cutting blade can be controlled according to the diameter of the cutting optical fiber, realizing dynamic reset for cutting optical fibers of different diameters, reducing idle travel time loss, and improving cutting efficiency.

[0025] In addition, both servo motor 210 and servo motor 14 are equipped with vibration damping pads during installation. The structure of the vibration damping pads can be set according to requirements and is not limited here. The vibration damping pads can reduce the impact of motor vibration on the control accuracy of this device.

[0026] All electrical components involved in this application are prior art. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies can be connected by wires. According to the actual situation, a suitable controller can be selected to meet the control requirements. For specific connections and control sequences, please refer to the description below. The electrical connection between each electrical component is completed in the order of operation. The detailed connection methods are well known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0027] In summary: When using this automatic lifting and cutting device, both the fixed plate 1 and the motor mounting plate 2 are connected to the frame of the fiber optic cutting equipment, and the cutting blade is connected to the blade head fixing shaft 8. After the equipment control system issues a drive command, the servo motor 10 drives the gear 5 connected to it to rotate. The gear 5, through the meshing gear 7, drives the ball screw 6 to rotate. The rotation of the ball screw 6 causes the threaded ball nut connected to it to move in the direction of the ball screw 6. The ball nut drives the push rod 12 to move. In the closed-loop control mode, the push rod 12 makes a precise linear displacement along the positive Z-axis. When the push rod 12 moves upward, it synchronously pushes the cutting blade head carrying platform 3 to complete the vertical upward movement through the baffle 11. During this stroke, the tension spring 13 is stretched during the platform's ascent, and its tension torque forms a dynamic balance with the output torque of the servo motor 10.

[0028] After completing the preset operating stroke, the system switches the control signal, and servo motor 210 performs reverse braking. The push rod descends under the action of servo motor 210. At this time, tension spring 13 contracts, driving the cutting head support platform 3 to perform a rapid reset motion along the negative Z-axis. The descent of the cutting head support platform 3 causes the cutting blade to descend, enabling it to cut the optical fiber. After cutting, the cutting blade moves upward under the action of the electric lifting actuator. Finally, under the control of the closed-loop position feedback system, each actuator separates from the optical fiber, completing a full processing cycle.

[0029] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each structure adopt conventional technical means such as bolt connection that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic lifting and cutting device, comprising an electric lifting actuation structure, a cutter head fixing structure, and a guide and reset structure, characterized in that: The cutter head fixing structure is connected to the guide reset structure. The cutter head fixing structure includes a cutter head bearing platform (3), a baffle (11) connected to the cutter head bearing platform (3), a cutter head fixing shaft (8) movably connected to the middle of the top of the cutter head bearing platform (3), and a displacement sensor (9) connected to one side of the top of the cutter head bearing platform (3). The electric lifting actuator includes a motor mounting plate (2), a top rod (12) movably connected to the motor mounting plate (2), a servo motor II (10) connected to the motor mounting plate (2), and a ball screw (6) movably connected to the motor mounting plate (2). The output shaft end of the servo motor II (10) is connected to a gear I (5). The bottom end of the ball screw (6) is provided with a gear II (7) meshing with the gear I (5). The outer ring of the ball screw (6) is threaded with a ball nut. The top rod (12) is connected to the ball nut. The top rod (12) is located below the baffle (11).

2. The automatic lifting and cutting device according to claim 1, characterized in that: The bottom end of the cutter head support platform (3) is provided with a servo motor (4), and the cutter head fixing shaft (8) is driven by the servo motor (4).

3. The automatic lifting and cutting device according to claim 1, characterized in that: The guide reset structure includes a fixing plate (1). Both ends of the fixing plate (1) near the cutter head fixing structure are provided with linear guide rail assemblies (14). The fixing plate (1) is connected to the cutter head carrying platform (3) through the linear guide rail assemblies (14). A tension spring (13) is provided in the middle of the fixing plate (1). The other end of the tension spring (13) is connected to the cutter head carrying platform (3).

4. The automatic lifting and cutting device according to claim 3, characterized in that: The cutter head support platform (3) is in contact with the fixed plate (1).

5. The automatic lifting and cutting device according to claim 1, characterized in that: The electric lifting actuator, the cutter head fixing structure, and the guide reset structure are all independent of each other.

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