A ceramic ferrule inspection clamping tool

Abstract

The utility model belongs to ceramic plug core technical field, specifically disclose a kind of ceramic plug core inspection clamping tool, including bottom plate, the top of bottom plate is provided with connecting seat, the side of connecting seat is provided with clamping assembly;Clamping assembly includes the first annular piece and the second annular piece that can be relatively moved, multiple connecting rods are hinged between the first annular piece and the second annular piece group, each connecting rod group is hinged with an arc clamping block, multiple arc clamping blocks are circumferentially arranged to form clamping space, the outside of arc clamping block is covered with soft pad, the utility model is through the setting of clamping assembly, utilize the soft pad of arc clamping block inner side wall covering and ceramic plug core outer wall form flexible contact, the deformation buffer clamping force of soft pad, effectively avoid the scratch, indentation and other uncontrollable damage caused by traditional hard contact extrusion mode to ceramic plug core outer wall, guarantee the appearance integrity and surface precision of ceramic plug core, lay foundation for the smooth development of subsequent visual inspection.

Description

Technical Field

[0001] This application relates to the field of ceramic ferrule technology, and more specifically, to a clamping fixture for inspecting ceramic ferrules. Background Technology

[0002] Ceramic ferrules are core passive components in fiber optic communication systems used for precise alignment and connection of optical fibers. Primarily made of zirconia ceramic as the substrate, they are manufactured through powder metallurgy, precision grinding, and polishing processes. They have a cylindrical structure with a micron-level precision through-hole along the central axis. Their core function is to position the two optical fibers to be connected through the through-hole, ensuring precise alignment of the fiber cores and minimizing insertion loss and return loss during optical signal transmission.

[0003] Existing ceramic ferrule inspection fixtures use a fixing method where multiple baffles directly press against the outer wall of the ferrule. Because the contact and pressing between the baffles and the outer wall of the ferrule lacks precise force control and flexible buffering, it is easy to cause uncontrollable scratches, indentations and other damage to the outer wall of the ceramic ferrule, resulting in a decrease in the surface precision of the ferrule, which in turn affects the accuracy of subsequent fiber optic connection inspection and the qualification determination of the ferrule. Utility Model Content

[0004] To address the aforementioned issues, this application provides a clamping fixture for inspecting ceramic ferrules.

[0005] The clamping fixture for inspecting ceramic ferrules provided in this application adopts the following technical solution:

[0006] A clamping fixture for inspecting ceramic inserts includes a base plate, a connecting seat on the top of the base plate, and a clamping assembly on one side of the connecting seat.

[0007] The clamping assembly includes a first annular member and a second annular member that are movable relative to each other. Multiple connecting rod groups are hinged between the first annular member and the second annular member. Each connecting rod group is hinged to an arc-shaped clamping block. The multiple arc-shaped clamping blocks are arranged circumferentially to form a clamping space. The outer side of the arc-shaped clamping blocks is covered with a soft pad.

[0008] Through the above technical solution, the deformation buffer clamping force of the soft pad effectively avoids uncontrollable damage such as scratches and indentations caused to the outer wall of the ceramic ferrule by the traditional hard contact extrusion method, ensuring the appearance integrity and surface precision of the ceramic ferrule, and laying the foundation for the smooth implementation of subsequent visual inspection.

[0009] Furthermore, a fixing frame is fixed to the top of the connector, and a motor is installed on the top of the fixing frame.

[0010] Furthermore, the output shaft of the motor is connected to a rotating rod, and a transmission rod is fixedly connected to the end of the rotating rod away from the motor.

[0011] Furthermore, the first annular member is fixedly connected to the transmission rod, and the second annular member is slidably connected to the transmission rod.

[0012] Furthermore, a key sleeve is fixedly connected to the side of the second annular component facing the motor, and the key sleeve is engaged with the transmission rod via a spline.

[0013] Furthermore, a splined section is formed at the end of the transmission rod away from the motor, and the key sleeve is splinedly connected to the splined section.

[0014] Furthermore, the outer circumference of the key sleeve is fitted with a rotating ring, and an L-shaped rod is fixedly connected to the bottom of the rotating ring. An electric push rod is installed inside the fixed frame, and the output end of the electric push rod is fixedly connected to the L-shaped rod.

[0015] Furthermore, a limiting ring is fixedly provided at one end of the connecting seat near the clamping assembly, and a control system is provided inside the connecting seat and the fixed frame. The control system is electrically connected to the motor and the electric push rod.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] This invention utilizes a clamping assembly to deflect the angle of the connecting rods hinged between the two components, pushing the circumferentially arranged arc-shaped clamping blocks towards the center to form a circular clamping space that fits the outer wall of the ceramic ferrule, thus achieving precise clamping of the ceramic ferrule. Simultaneously, the soft pad covering the inner wall of the arc-shaped clamping blocks forms a flexible contact with the outer wall of the ceramic ferrule. The deformation of the soft pad buffers the clamping force, effectively avoiding uncontrollable damage such as scratches and indentations caused by traditional hard-contact compression methods to the outer wall of the ceramic ferrule. This ensures the appearance integrity and surface precision of the ceramic ferrule, laying the foundation for subsequent visual inspection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 This is a clamping diagram of the present invention;

[0021] Figure 4 This is a plan view of the present invention;

[0022] Figure 5 This is a partial view of the present invention.

[0023] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Connecting seat; 3. Fixing frame; 4. Motor; 5. Rotating rod; 6. Transmission rod; 7. Spline section; 8. First ring-shaped component; 9. Electric push rod; 10. Limiting ring; 11. L-shaped rod; 12. Key sleeve; 13. Rotating ring; 14. Connecting rod assembly; 15. Soft pad; 16. Arc-shaped clamping block; 17. Second ring-shaped component. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] Reference Figures 1-5 A clamping fixture for inspecting ceramic inserts includes a base plate 1, a connecting seat 2 on the top of the base plate 1, and a clamping assembly on one side of the connecting seat 2.

[0026] The clamping assembly includes a first annular member 8 and a second annular member 17 that are movable relative to each other. A plurality of connecting rod groups 14 are hinged between the first annular member 8 and the second annular member 17. Each connecting rod group 14 is hinged to an arc-shaped clamping block 16. The plurality of arc-shaped clamping blocks 16 are arranged circumferentially to form a clamping space. The outer side of the arc-shaped clamping blocks 16 is covered with a soft pad 15.

[0027] When the ceramic ferrule needs to be clamped for visual inspection, the ceramic ferrule is first placed on the outer wall of the arc-shaped clamping block 16, with its inner wall in contact with the soft pad 15. Then, the control system inside the connecting seat 2 and the fixing frame 3 first sends an action command to the electric push rod 9. The output end of the electric push rod 9 generates an axial thrust and acts on the L-shaped rod 11 fixedly connected to it, causing the L-shaped rod 11 to move horizontally towards the clamping assembly. Since the top of the L-shaped rod 11 is fixedly connected to the rotating ring 13, and the rotating ring 13 is rotatably sleeved on the outer circumference of the key sleeve 12 through the inner hole, the rotating ring 13 will synchronously push the key sleeve 12 to move axially along the transmission rod 6 when it moves with the L-shaped rod 11. Also, since the key sleeve 12 and the splined section 7 of the transmission rod 6 are splined, and the end of the key sleeve 12 away from the electric push rod 9 is fixedly connected to the second ring 17, the second ring... As the key sleeve 12 moves along the transmission rod 6 toward the first annular member 8, the distance between the second annular member 17 and the first annular member 8 gradually decreases. The multiple connecting rod groups 14 hinged between them will deflect at an angle around the hinge point. The end away from the annular member will converge toward the central axis of the tooling, thereby pushing the multiple arc-shaped clamping blocks 16 hinged to the end of the connecting rod group 14 to expand toward the center synchronously. These arc-shaped clamping blocks 16 are evenly arranged circumferentially along the axis of the transmission rod 6. Initially, they are annular. During the expansion process, they will gradually enclose to form a circular clamping space that matches the outer wall of the ceramic ferrule. At this time, the soft pad 15 covering the inner wall of the arc-shaped clamping block 16 will flexibly contact the outer wall of the ceramic ferrule. The deformation of the soft pad 15 will buffer the clamping force and avoid damage such as scratches and indentations on the outer wall caused by traditional hard contact compression.

[0028] This ceramic ferrule inspection clamping fixture is a miniature precision clamping structure adapted to the miniaturized size characteristics of ceramic ferrules, and its clamping surface is the internal channel of the ceramic ferrule.

[0029] Reference Figures 1-4 A fixed frame 3 is fixed to the top of the connecting seat 2, and a motor 4 is installed on the top of the fixed frame 3. The output shaft of the motor 4 is connected to a rotating rod 5. A transmission rod 6 is fixedly connected to the end of the rotating rod 5 away from the motor 4. The first annular member 8 is fixedly connected to the transmission rod 6, and the second annular member 17 is slidably connected to the transmission rod 6.

[0030] Once the clamping is in place, the control system can start the motor 4. The output shaft of the motor 4 drives the rotating rod 5 and the transmission rod 6 fixed to the rotating rod 5 to rotate. Because the spline sleeve 12 and the spline section 7 have been connected after clamping, the spline sleeve 12 will rotate synchronously with the transmission rod 6, thereby driving the second ring 17, the connecting rod group 14, the arc-shaped clamping block 16 and the clamped ceramic ferrule to rotate smoothly together, realizing multi-directional inspection of the outer periphery and end face of the ceramic ferrule.

[0031] Reference Figures 1-4The second annular member 17 is fixedly connected to a key sleeve 12 on the side facing the motor 4. The key sleeve 12 and the transmission rod 6 are splined together. The end of the transmission rod 6 away from the motor 4 forms a splined section 7. The key sleeve 12 and the splined section 7 are splined together.

[0032] Reference Figures 4-5 The outer circumference of the key sleeve 12 is fitted with a rotating ring 13. The bottom of the rotating ring 13 is fixedly connected to an L-shaped rod 11. An electric push rod 9 is installed inside the fixed frame 3. The output end of the electric push rod 9 is fixedly connected to the L-shaped rod 11. A limit ring 10 is fixedly installed at one end of the connecting seat 2 near the clamping assembly. A control system is installed inside the connecting seat 2 and the fixed frame 3. The control system is electrically connected to the motor 4 and the electric push rod 9.

[0033] Before the clamping process is started, the operator places one end face of the ceramic ferrule against the reference surface of the limiting ring 10 to complete the initial positioning. Then, during the process of the electric push rod 9 driving the arc-shaped clamping block 16 to unfold outward to achieve circumferential clamping, the limiting ring 10 always keeps in contact with the end face of the ferrule, and restricts the displacement of the ferrule along the axis of the transmission rod 6 by physical blocking.

[0034] After receiving external trigger signals (such as manual operation commands or host computer control signals), the control system first analyzes and processes the signals, then sends a positive drive signal to the electric push rod 9 to control its output end to extend precisely to push the L-shaped rod 11, thereby driving the arc-shaped clamping block 16 to complete the clamping action of the ceramic ferrule's 0.125mm inner hole. At the same time, the system uses external stroke sensors and pressure sensors (used to collect the clamping force data of the arc-shaped clamping block 16 on the inner hole of the ceramic ferrule in real time; these sensors can be installed at the hinge of the arc-shaped clamping block 16 and the connecting rod group 14 or inside the soft pad 15) to provide real-time feedback on the operating parameters. When the clamping force is detected to reach the preset threshold and the ferrule is in place with the end face of the limit ring 10, a stop signal is immediately sent to the electric push rod 9 to avoid over-clamping and damaging the ferrule.

[0035] Subsequently, according to the inspection requirements, a speed control drive signal is sent to motor 4. The encoder built into motor 4 provides real-time feedback of speed and angle data, enabling precise start-stop and speed control of motor 4, driving the ferrule to rotate smoothly to complete multi-directional inspection. After the inspection is completed, the control system first sends a stop signal to stop motor 4, and then sends a reverse drive signal to electric push rod 9 to control its output end to pull back and release the ferrule.

[0036] Throughout the process, the control commands are dynamically adjusted based on data feedback from the aforementioned external sensors (which are existing technologies and not shown in the figure), ensuring the accuracy and stability of the clamping and inspection process.

[0037] Working principle: Initial positioning is performed first. The operator places one end face of the ceramic insert against the reference surface of the limiting ring 10 on the connecting seat 2, while simultaneously contacting the outer wall of the middle part of the insert with the soft pad 15 covering the outer side of the arc-shaped clamping block 16. Subsequently, the control system inside the connecting seat 2 and the fixing frame 3 sends a command to the electric push rod 9 inside the fixing frame 3. The output end of the electric push rod 9 generates axial thrust, pushing the L-shaped rod 11 fixed thereto to move horizontally towards the clamping assembly. Because the rotating ring 13 fixed at the top of the L-shaped rod 11 rotates around the outer circumference of the key sleeve 12, the rotating ring 13 synchronously pushes the key sleeve 12 to slide axially along the spline section 7 of the transmission rod 6. Since the key sleeve 12 is fixed to the second ring 17, the second ring 17 moves closer to the first ring 8 fixed to the transmission rod 6 along with the key sleeve 12. As the distance between the two annular parts decreases, the multiple connecting rod groups 14 hinged between them deflect around the hinge point, pushing the circumferentially arranged arc-shaped clamping block 16 hinged to it to expand towards the center in sync, forming a clamping space that fits the outer wall of the middle part of the insert. The soft pad 15 flexibly contacts the outer wall of the insert, and the clamping force is buffered by deformation.

[0038] After the clamping is in place, the control system starts the motor 4 at the top of the fixed frame 3. The output shaft of the motor 4 drives the rotating rod 5 and the transmission rod 6 to rotate. The key sleeve 12, which is connected by a spline, rotates synchronously with the transmission rod 6, thereby driving the second ring 17, the connecting rod group 14, the arc-shaped clamping block 16 and the clamped ceramic ferrule to rotate together. At this time, the limiting ring 10 continues to be in contact with the end face of the ferrule, limiting its axial displacement and realizing multi-directional visual inspection of the outer periphery and end face of the ferrule.

[0039] After the inspection is completed, the control system controls the electric push rod 9 to pull back the L-shaped rod 11, the second ring 17 moves away from the first ring 8, and the connecting rod group 14 drives the arc-shaped clamp 16 to unfold, so that the ceramic insert can be removed.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A clamping fixture for inspecting ceramic ferrules, characterized in that, include: A base plate (1) is provided with a connecting seat (2) on its top and a clamping assembly is provided on one side of the connecting seat (2). The clamping assembly includes a first ring (8) and a second ring (17) that are movable relative to each other. A plurality of connecting rod groups (14) are hinged between the first ring (8) and the second ring (17). Each connecting rod group (14) is hinged to an arc-shaped clamping block (16). The plurality of arc-shaped clamping blocks (16) are arranged circumferentially to form a clamping space. The outer side of the arc-shaped clamping block (16) is covered with a soft pad (15).

2. The clamping fixture for inspecting ceramic ferrules according to claim 1, characterized in that: The top of the connecting seat (2) is fixed with a fixing frame (3), and a motor (4) is installed on the top of the fixing frame (3).

3. The clamping fixture for inspecting ceramic ferrules according to claim 2, characterized in that: The output shaft of the motor (4) is connected to a rotating rod (5), and a transmission rod (6) is fixedly connected to the end of the rotating rod (5) away from the motor (4).

4. The clamping fixture for inspecting ceramic ferrules according to claim 3, characterized in that: The first annular member (8) is fixedly connected to the transmission rod (6), and the second annular member (17) is slidably connected to the transmission rod (6).

5. The clamping fixture for inspecting ceramic ferrules according to claim 3, characterized in that: The second annular member (17) is fixedly connected to a key sleeve (12) on the side facing the motor (4), and the key sleeve (12) is engaged with the transmission rod (6) by a spline.

6. The clamping fixture for inspecting ceramic ferrules according to claim 5, characterized in that: The transmission rod (6) has a spline segment (7) at the end away from the motor (4), and the key sleeve (12) is splinedly connected to the spline segment (7).

7. The clamping fixture for inspecting ceramic ferrules according to claim 5, characterized in that: The outer circumference of the key sleeve (12) is provided with a rotating ring (13), and the bottom of the rotating ring (13) is fixedly connected to an L-shaped rod (11). An electric push rod (9) is provided inside the fixed frame (3), and the output end of the electric push rod (9) is fixedly connected to the L-shaped rod (11).

8. A clamping fixture for inspecting ceramic ferrules according to claim 7, characterized in that: The connecting seat (2) is fixedly provided with a limiting ring (10) at one end near the clamping assembly. The connecting seat (2) and the fixing frame (3) are provided with a control system, which is electrically connected to the motor (4) and the electric push rod (9).

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