A fiber optic connector clamp assembly and polishing fixture

Abstract

The utility model discloses a kind of optical fiber connector clamping assemblies, it includes: first mounting seat, first mounting hole is equipped in it, the axis of first mounting hole is first axis;First locking column, it is movably arranged in first mounting hole along first axis;First pressing block, it is coupled with the lower end portion of first locking column and moves with the movement of first locking column;First locking block, it includes first outer sleeve, first inner compression column slidingly connected in first outer sleeve along the axis of first outer sleeve, first spring is arranged in first outer sleeve and is used to make first inner compression column always have the tendency of moving towards first pressing block, the lower end portion of first pressing block is connected to first inner compression column.When first locking block rotates in sequence and makes first locking column move obliquely downward along first axis, first inner compression column makes first pressing block have displacement margin moving upward along first axis, prevent first pressing block from being jammed when compressing optical fiber connector and cause not effectively clamped.

Description

Technical Field

[0001] This utility model belongs to the field of optical fiber production equipment, and specifically relates to an optical fiber connector clamping assembly and a grinding fixture. Background Technology

[0002] Fiber optic connectors are key components in fiber optic communication that enable active connections between devices. They mainly consist of connectors (such as LC, SC, MT, MPO ferrules), optical fibers, and sheaths. Their core function is to ensure efficient optical signal transmission by precisely aligning the fiber end faces. They are widely used in data centers, local area networks, and other scenarios. During the manufacturing process, the end faces of the fiber optic connectors need to be ground, which requires clamping the connectors during the grinding process.

[0003] The existing polishing fixtures for fiber optic connectors have no movable joints, which can easily cause the clamping head of the fiber optic connector to jam when clamping it. Furthermore, when the polishing fixture is used when there is a long fiber optic coil at the top, it cannot isolate the long fiber optic cable outside the clamping position of the mounting post, which can easily lead to damage to the fiber optic cable. Summary of the Invention

[0004] The purpose of this invention is to provide a fiber optic connector clamping assembly that makes clamping easier.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a fiber optic connector clamping assembly, comprising: A first mounting base has a first mounting surface, and the first mounting base has a first mounting hole whose axis is inclined to the first mounting surface. The axis of the first mounting hole is the first axis. The first locking pin is movably inserted into the first mounting hole along the first axis; The first pressure block is coupled to the lower end of the first locking pin and moves with the movement of the first locking pin; The first locking block is rotatably connected to the first mounting base and coupled to the upper end of the first locking pin, and drives the first locking pin to move by rotating itself. The first locking pin includes a first outer tube, a first inner pressing pin slidably connected to the first outer tube along the axis of the first outer tube, and a first spring disposed in the first outer tube and used to make the first inner pressing pin always have a tendency to move toward the first pressing block. The first pressing block is connected to the lower end of the first inner pressing pin.

[0006] In another embodiment, the lower end of the first inner clamping post is spherical, and a spherical groove matching the lower end of the first inner clamping post is formed on the first pressure block. A ball joint structure is formed between the lower end of the first inner clamping post and the first pressure block. The ball joint structure enables the first pressure block to adaptively adjust its posture when subjected to external pressure, thereby making it fit better with the clamped optical fiber connector and making the optical fiber connector connection stable.

[0007] In another embodiment, the ball groove extends through the direction perpendicular to the first axis, facilitating the installation of the lower end of the first inner clamping column into the ball groove.

[0008] In another embodiment, a first protrusion is formed on the inner sidewall of the lower end of the first outer sleeve, and a second protrusion matching the first protrusion is formed on the outer sidewall of the upper end of the first inner clamping column. When the first inner clamping column moves to the lower limit position inside the first outer sleeve, the second protrusion is locked on the first protrusion. The first protrusion and the second protrusion cooperate to prevent the first inner clamping column from falling off from the lower end of the first outer sleeve.

[0009] In another embodiment, the first locking pin further includes an upper cover connected to the upper end of the first outer sleeve and abutting against the upper end of the first spring.

[0010] In another embodiment, the outer diameter of the upper cover is larger than the outer diameter of the first outer sleeve, and the clamping assembly further includes a second spring sleeved on the outer wall of the first outer sleeve with its lower end abutting against the first mounting hole and its upper end abutting against the upper cover; the second spring causes the first locking pin to always have a tendency to move away from the first pressure block along the first axis.

[0011] In another embodiment, a cam surface is formed on the first locking block. When it rotates in the forward direction, the distance between the contact point between its rotating shaft and the first locking pin increases. The first locking block is provided with a first stop protrusion. When the first locking block rotates in the forward direction until the first stop protrusion abuts against the first locking pin, the first locking block can no longer rotate.

[0012] This utility model also provides an optical fiber polishing fixture, which includes: The mounting plate has an upper end face and a lower end face, and a clamping groove that runs through the upper and lower ends is provided on it. Mounting post, which is mounted on the upper surface of the mounting plate; The clamping assembly is the aforementioned fiber optic connector clamping assembly, which is mounted on the mounting plate, and the first pressure block and the clamping groove form a clamping station.

[0013] In another embodiment, the clamp further includes a cable tray, cable blocks, and a limiting plate mounted on the mounting post. The cable tray has several mounting surfaces on its circumferential surface. Each mounting surface has several vertically penetrating limiting notches and several fixing holes. Each cable block corresponds one-to-one with each mounting surface. The cable block is fixed to the mounting surface through the fixing holes and forms limiting holes with the limiting notches. A clamping surface is formed on the circumferential surface of the mounting post. The limiting plate has at least a first baffle and a second baffle located on both sides of the mounting post. The first baffle, the clamping surface, and the second baffle are collinear. The cable tray can neatly bind the optical fiber to the mounting tray, preventing the optical fiber from becoming tangled. The limiting plate restricts the optical fiber to the outside of the limiting plate, preventing the optical fiber from entering between the limiting plate and the mounting post, thus preventing unstable clamping and damage to the optical fiber when the grippers hold the clamp.

[0014] In another embodiment, the fixture further includes wing plates mounted on both sides of the mounting plate. The lower end face of the wing plate is lower than the lower end face of the mounting plate, and the height difference between the two on the axis of the mounting post is δH, where 0 < δH ≤ 0.2 mm. Since a small portion of the fiber to be polished will actually protrude below the lower end face of the mounting plate during installation, slightly lowering the lower end face of the wing plate below the lower end face of the mounting plate can provide some protection for the mounting plate during polishing, preventing excessive polishing damage to the mounting plate.

[0015] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: when the first locking block rotates in the forward direction and the first locking pin moves obliquely downward along the first axis, the first inner pressing pin gives the first pressing block a displacement margin to move upward along the first axis, preventing the first pressing block from getting stuck when pressing the optical fiber connector and thus failing to clamp effectively; when the optical fiber connector is placed in the clamping groove, the first locking block is moved in the forward direction, and the first locking block pushes the first locking pin to push the first pressing block obliquely downward along the first axis, and the first pressing block presses the optical fiber connector in the clamping groove. Attached Figure Description

[0016] Figure 1 This is a perspective view of the fixture of this utility model; Figure 2 This is a perspective view of the clamping assembly of this utility model; Figure 3 This is a side view of the clamping assembly of this utility model; Figure 4 This is a bottom view of the clamping assembly of this utility model; Figure 5 for Figure 4 AA section view; Figure 6 This is a structural diagram of the wire harness assembly (the limiting plate is not shown). Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0018] See appendix Figure 1 As shown, the fiber optic polishing fixture includes: a mounting plate 2, a wing plate 3, a mounting post 4, a fiber optic connector clamping assembly 1, and a cable bundle assembly 5. The mounting plate 2 has an upper end face and a lower end face, on which a clamping groove 21 is formed; the mounting post 4 is mounted on the upper end face of the mounting plate 2; the fiber optic connector clamping assembly 1 is mounted on the mounting plate 2, and the first pressure block 13 and the clamping groove 21 form a clamping station B.

[0019] Specifically, the fiber optic connector clamping assembly 1 includes a first mounting base 11, a first locking pin 12, a first pressure block 13, and a first locking block 14. The first mounting base 11 has a first mounting surface C, and the first mounting base 11 has a first mounting hole D whose axis is inclined to the first mounting surface C. The axis of the first mounting hole D is a first axis E. The first locking pin 12 is movably inserted into the first mounting hole D along the first axis E. The first pressure block 13 is coupled to the lower end of the first locking pin 12 and moves with the movement of the first locking pin 12. The first locking block 14 is rotatably connected to the first mounting base 11 and coupled to the upper end of the first locking pin 12, and drives the first locking pin 12 to move by its own rotation.

[0020] The first locking post 12 includes a first outer tube 15, a first inner pressing post 16 slidably connected to the first outer tube 15 along the axis of the first outer tube 15, and a first spring 17 disposed in the first outer tube 15 and used to make the first inner pressing post 16 always have a tendency to move toward the first pressing block 13. The first pressing block 13 is connected to the lower end of the first inner pressing post 16. When the first locking block 14 rotates in the forward direction and the first locking post 12 moves obliquely downward along the first axis E, the first inner pressing post 16 makes the first pressing block 13 have a displacement margin to move upward along the first axis E, so as to prevent the first pressing block 13 from getting stuck when pressing the fiber optic connector and thus failing to clamp effectively. The lower end of the first inner clamping post 16 is spherical, and a spherical groove 18 matching the lower end of the first inner clamping post 16 is formed on the first pressure block 13. A ball joint structure is formed between the lower end of the first inner clamping post 16 and the first pressure block 13. The ball joint structure enables the first pressure block 13 to adaptively adjust its posture when subjected to external pressure, thereby better fitting it with the clamped fiber optic connector and stabilizing the fiber optic connector connection. The spherical groove 18 extends along the direction perpendicular to the first axis E, facilitating the installation of the lower end of the first inner clamping post 16 into the spherical groove 18. A first protrusion 19 is formed on the inner sidewall of the lower end of the first outer sleeve 15. A second protrusion 10 matching the first protrusion 19 is formed on the outer sidewall of the upper end of the first inner clamping post 16. When the first inner clamping post 16 moves to the lower limit position within the first outer sleeve 15, the second protrusion 10 engages with the first protrusion 19. The first protrusion 19 and the second protrusion 10 cooperate to prevent the first inner clamping post 16 from falling off from the lower end of the first outer sleeve 15. The first locking post 12 also includes an upper cover 110 connected to the upper end of the first outer sleeve 15 and abutting against the upper end of the upper end of the first spring 17. The outer diameter of the upper cover 110 is larger than the outer diameter of the first outer sleeve 15. The clamping assembly also includes a second spring 111 sleeved on the outer sidewall of the first outer sleeve 15, with its lower end abutting against the first mounting hole D and its upper end abutting against the upper cover 110. The second spring 111 causes the first locking post 12 to always have a tendency to move away from the first pressure block 13 along the first axis E. A cam surface is formed on the first locking block 14. When it rotates clockwise, the distance between its rotating shaft and the contact point of the first locking pin 12 increases. The first locking block 14 is provided with a first stop protrusion. When the first locking block 14 rotates clockwise until the first stop protrusion 112 abuts against the first locking pin 12, the first locking block 14 can no longer rotate. After the fiber optic connector is placed in the clamping groove 21, the first locking block 14 is moved clockwise. The first locking block 14 pushes the first locking pin 12 to push the first pressure block 13 obliquely downward along the first axis E. The first pressure block 13 presses the fiber optic connector tightly in the clamping groove 21.

[0021] The cable harness assembly 5 includes a cable harness tray 51, cable harness blocks 52, and a limiting plate 55 mounted on the mounting post 4. The cable harness tray 51 has several mounting surfaces on its circumference. Each mounting surface has several vertically penetrating limiting notches 53 and several fixing holes 54. Each cable harness block 52 corresponds to one mounting surface. The cable harness block 52 is fixed to the mounting surface via the fixing holes 54 and bolts, forming limiting holes with the limiting notches 53. Alternatively, cable harnessing can be achieved through a connector fixed to the cable harness block 52 and interference-fitted with the fixing holes 54. The mounting post 4 has a clamping surface F on its circumferential surface. The limiting plate 55 has at least a first baffle 56 and a second baffle 57 located on both sides of the mounting post 4. The first baffle 56, the clamping surface F, and the second baffle 57 are collinear. The cable tray 51 can neatly bind the optical fiber to the mounting tray to prevent the optical fiber from tangling. The limiting plate 55 restricts the optical fiber to the outside of the limiting plate 55 to prevent the optical fiber from entering between the limiting plate 55 and the mounting post 4, which could lead to unstable clamping and damage to the optical fiber when the gripper is holding the fixture.

[0022] Wing plate 3 is installed on both sides of mounting plate 2. The lower end surface of wing plate 3 is lower than the lower end surface of mounting plate 2, and the height difference between the two on the axis of mounting post 4 is δH, 0<δH≤0.2mm. Since a small part of the fiber to be polished will actually protrude below the lower end surface of mounting plate 2 during installation, slightly lowering the lower end surface of wing plate 3 below the lower end surface of mounting plate 2 can provide some protection for mounting plate 2 during polishing and prevent mounting plate 2 from being excessively polished and damaged.

[0023] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A fiber optic connector clamping assembly, comprising: A first mounting base has a first mounting surface, and the first mounting base has a first mounting hole whose axis is inclined to the first mounting surface. The axis of the first mounting hole is the first axis. The first locking pin is movably inserted into the first mounting hole along the first axis; The first pressure block is coupled to the lower end of the first locking pin and moves with the movement of the first locking pin; The first locking block is rotatably connected to the first mounting base and coupled to the upper end of the first locking pin, and drives the first locking pin to move by rotating itself. The first locking pin is characterized in that: the first locking pin includes a first outer sleeve, a first inner pressing pin slidably connected to the first outer sleeve along the axis of the first outer sleeve, and a first spring disposed in the first outer sleeve and used to make the first inner pressing pin always have a tendency to move toward the first pressing block, and the first pressing block is connected to the lower end of the first inner pressing pin.

2. The fiber optic connector clamping assembly according to claim 1, characterized in that: The lower end of the first inner clamping column is spherical, and a ball groove matching the lower end of the first inner clamping column is formed on the first pressure block. A ball hinge structure is formed between the lower end of the first inner clamping column and the first pressure block.

3. The fiber optic connector clamping assembly according to claim 2, characterized in that: The ball groove extends through the ball along the direction perpendicular to the first axis.

4. The fiber optic connector clamping assembly according to claim 1, characterized in that: A first boss is formed on the inner sidewall of the lower end of the first outer sleeve, and a second boss matching the first boss is formed on the outer sidewall of the upper end of the first inner clamping column.

5. The fiber optic connector clamping assembly according to claim 1, characterized in that: The first locking pin also includes an upper cover connected to the upper end of the first outer sleeve and abutting against the upper end of the first spring.

6. The fiber optic connector clamping assembly according to claim 5, characterized in that: The outer diameter of the upper cover is larger than the outer diameter of the first outer sleeve. The clamping assembly also includes a second spring sleeved on the outer wall of the first outer sleeve, with its lower end abutting against the first mounting hole and its upper end abutting against the upper cover.

7. The fiber optic connector crimp assembly of claim 5, wherein: The first locking block has a cam surface formed on it. When it rotates in the forward direction, the distance between its rotating shaft and the contact point of the first locking pin increases. The first locking block is provided with a first stop protrusion.

8. An optical fiber polishing fixture, comprising: The mounting plate has an upper end face and a lower end face, and a clamping groove that runs through the upper and lower ends is provided on it. Mounting post, which is mounted on the upper surface of the mounting plate; Clamping components; The feature is that the clamping assembly is any one of the fiber optic connector clamping assemblies described in claims 1-7, which is mounted on the mounting plate, and the first pressure block and the clamping groove form a clamping station.

9. The optical fiber polishing fixture according to claim 8, characterized in that: The clamp also includes a cable tray, a cable block, and a limiting plate mounted on the mounting post. The cable tray has several mounting surfaces on its circumference. Each mounting surface has several vertically penetrating limiting notches and several fixing holes. Each cable block corresponds to each mounting surface. The cable block is fixed to the mounting surface through the fixing holes and forms a limiting hole with the limiting notch. The mounting post has a clamping surface on its circumference. The limiting plate has at least a first baffle and a second baffle located on both sides of the mounting post. The first baffle, the clamping surface, and the second baffle are collinear.

10. The optical fiber polishing fixture according to claim 8, characterized in that: The clamp also includes wing plates mounted on both sides of the mounting plate. The lower end face of the wing plate is lower than the lower end face of the mounting plate, and the height difference between the two on the axis of the mounting column is δH, where 0 < δH ≤ 0.2 mm.

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