Optical fiber polishing fixture

Abstract

The utility model discloses a kind of optical fiber grinding clamps, it is related to optical grinding clamping appliance technical field, including substrate, the cylindrical positioning block is fixedly connected in substrate top surface, positioning block axis is the center end of this product, and substrate top surface is equipped with multiple long strip equidistantly around the limiting slot of positioning block;Substrate top surface is equipped with multiple through holes matched with limiting slot;Through hole will limiting slot be divided into two ends, and mounting hole is equipped with the opposite side of through hole;Flexible arc clamping block is installed in through hole and is connected with matched mounting hole, and long strip central groove is equipped between two limiting slots, substrate top surface is equipped with multiple equidistant drive chamber, locking drive assembly is installed in mounting plate top surface, and limiting cooperation component is installed in drive chamber;In the utility model, through the cooperation between clamping block and through hole, the effect of flexible clamping optical fiber is played, the problem that traditional rigid clamping is prone to cause optical fiber fracture is solved, and the safety and integrity in the process of optical fiber clamping are improved.

Description

Technical Field

[0001] This utility model relates to the field of optical polishing clamping tools, and in particular to an optical fiber polishing clamp. Background Technology

[0002] In the field of optical polishing, fiber polishing fixtures are key equipment to ensure the polishing accuracy of fiber end faces. Their core function is to stably clamp the fiber during the polishing process to prevent fiber displacement or damage, so as to meet the strict requirements of subsequent optical signal transmission for the flatness and smoothness of the fiber end face. With the rapid development of fiber optic communication, fiber optic sensing and other technologies, the requirements for fiber polishing quality are constantly increasing, and the structural defects of traditional fiber polishing fixtures are gradually becoming more prominent. Traditional fiber optic polishing fixtures often employ rigid clamping structures, applying clamping force directly to the fiber surface via metal clamps. To ensure the fiber doesn't loosen during polishing, these fixtures frequently require a high clamping force. However, fiber optics are inherently brittle, and the concentrated, unbuffered force of rigid clamping easily leads to indentations, cracks, or even fiber breakage, severely impacting performance and lifespan, increasing processing costs and material waste. Furthermore, adjusting the clamping tightness of traditional fixtures relies on manual experience, lacking precise adjustment structures and locking mechanisms. Even if the initial clamping condition is correct, prolonged polishing vibrations can cause problems. Under these conditions, the transmission structure of traditional clamps is prone to loosening, further aggravating fiber displacement and resulting in poor consistency of batch-polished fiber products, failing to meet the precision standards of industrial production. Among these issues, the traditional rigid clamping structure, lacking flexible buffer design, is prone to mechanical damage to the fiber during clamping, leading to fiber breakage, which is particularly prominent. This problem not only directly increases material loss and production costs in fiber processing, but also prolongs the processing cycle because broken fibers need to be replaced and clamped again, severely restricting the efficiency and quality stability of fiber polishing and making it difficult to meet the current high-precision and high-efficiency fiber manufacturing requirements. Therefore, these problems need to be solved. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a device for removing impurities and separating aquatic product by-products through crushing and screening.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an optical fiber polishing fixture, comprising a substrate, a cylindrical positioning block fixedly connected to the center of the top surface of the substrate, and a plurality of fan-shaped equidistant limiting grooves surrounding the positioning block on the top surface of the substrate; a through hole on the top surface of the substrate; the through hole dividing the limiting grooves into two ends, and mounting holes being provided on opposite sides of the outer side of the through hole; a flexible arc-shaped clamping block connected to a mating mounting hole is installed in the through hole, and a fan-shaped central groove is provided between two limiting grooves at the same end; a plurality of equidistant driving chambers are provided on the top surface of the substrate, the proximal end of the driving chambers communicating with the distal end of the limiting grooves and the central groove respectively; a plurality of equidistant mounting plates are installed on the top surface of the substrate, a locking driving assembly is installed on the top surface of the mounting plates, and a limiting mating assembly is installed in the driving chamber.

[0005] Preferably, the limiting and mating assembly includes a movable block slidably connected to the bottom surface of the drive chamber. The proximal end of the movable block is conical, and the proximal end of the movable block is slidably connected to both sides of the inner wall of the distal end of the central groove. A sliding groove is formed on the top surface of the movable block, and a toothed strip is formed on one side of the sliding groove. A rotating gear that meshes with the toothed strip is provided in the sliding groove. The top surface of the rotating gear has an internal hexagonal structure, and the bottom surface of the rotating gear is rotatably connected to the bottom surface of the drive chamber. The rotating gear meshes with the toothed strip in the sliding groove for transmission, and a fixed platform is installed above the inner cavity of the drive chamber. The fixed platform has a fixing hole that mates with the outer side of the upper end of the rotating gear.

[0006] Preferably, the locking drive assembly includes a T-shaped support platform mounted on the top surface of the mounting plate. The vertical end of the support platform is cylindrical, and the axis of the vertical end of the support platform corresponds to the rotating gear in the drive chamber. A circular transmission hole is opened on the top surface of the support platform. The bottom surface of the transmission hole penetrates the mounting plate and communicates with the top surface of the drive chamber. A transmission rod is vertically installed in the transmission hole. The bottom surface of the transmission rod is placed at the upper end of the drive chamber, and a rotating gear is fixedly connected to the top surface of the transmission rod. A tooth groove is opened on the axis of the top surface of the rotating gear, and the bottom surface of the rotating gear abuts against the top surface of the support platform. A rotating platform that meshes with the tooth groove is sleeved on the outside of the rotating gear. A connecting rod with a matching internal hexagonal structure is fixedly connected to the axis of the bottom surface of the transmission rod, and the transmission rod is connected to the rotating gear for transmission through the connecting rod.

[0007] Preferably, the lower end of the transmission hole of the support platform is provided with a circular locking groove that matches the axis. The diameter of the locking groove is larger than that of the transmission rod. A vertical positioning groove is provided on the outside of the locking groove of the support platform. A vertical first driving groove is provided on the upper end of the positioning groove. The bottom surface of the positioning groove is lower than the bottom surface of the locking groove. A vertical second driving groove is provided on the outside of the first driving groove. A horizontal circular connecting groove is provided between the first driving groove and the second driving groove. There is no partition between one side of the connecting groove and the first driving groove. A partition is fixedly connected between the other side of the connecting groove and the second driving groove.

[0008] Preferably, the lower end of the transmission rod is fixedly connected to a ratchet with a locking groove, the first drive groove is vertically slidably connected to the first drive rod, and a communicating hole for engaging the first drive rod is opened between the first drive groove and the positioning groove. The lower end of the first drive rod is placed in the positioning groove, and a pawl for engaging the ratchet is fixedly connected to the first drive rod. A self-locking chamber is opened between the positioning groove and the locking groove for engaging the pawl, and the outer side of the pawl is rotatably connected to the inner wall of the self-locking chamber of the positioning groove. A second drive rod is vertically slidably connected in the second drive groove, and a second drive spring abuts against the bottom surface of the second drive rod. The lower end of the second drive spring abuts against the bottom surface of the second drive groove.

[0009] Preferably, the distal end of the pawl has a longitudinal circular self-locking groove, and a self-driving block is slidably connected in the self-locking groove. The proximal end of the self-driving block has a rounded corner and abuts against the distal end of the pawl. A self-locking spring is installed between the self-driving block and the inner opposite surface of the self-locking groove, and the two ends of the self-locking spring abut against the inner opposite surfaces of the self-driving block and the self-locking groove, respectively.

[0010] Preferably, a first drive spring is sleeved on the outer side of the lower end of the first drive rod, and the lower end of the first drive spring abuts against the bottom surface of the first drive groove. A transverse limiting hole is opened in the connecting groove at the upper end of the first drive groove and the second drive groove. A limiting rod with an abutment plate is slidably connected in the limiting hole. Both ends of the limiting rod are rounded, and the end of the limiting rod with the abutment plate communicates with the first drive groove. A limiting hole that matches the limiting rod is opened in the connecting groove. One end of the limiting rod abuts against the outer side of the first drive rod. Positioning holes with rounded corners at both ends of the first drive rod and the second drive rod are opened at the same upper end. A positioning spring is sleeved on the limiting rod and is placed between the abutment plate on which the limiting rod is installed and the partition plate fixed to the connecting groove.

[0011] Preferably, the upper end of the first drive groove is provided with a plurality of equidistant first snap-fit ​​slots, and a first snap-fit ​​block is slidably connected in the first snap-fit ​​slot. A first snap-fit ​​spring is installed on the distal surfaces of the plurality of first snap-fit ​​blocks respectively. The two ends of the first snap-fit ​​spring abut against the inner opposite surfaces of the first snap-fit ​​block and the first snap-fit ​​slot respectively. A first snap-fit ​​slot that matches the first snap-fit ​​block is vertically opened on the outer side of the first drive rod. The lower end of the second drive groove is provided with a plurality of equidistant second snap-fit ​​slots, and a second snap-fit ​​block is slidably connected in the second snap-fit ​​slot. A second snap-fit ​​spring is installed on the distal surfaces of the plurality of second snap-fit ​​blocks respectively. The two ends of the second snap-fit ​​spring abut against the inner opposite surfaces of the second snap-fit ​​block and the second snap-fit ​​slot respectively. A second snap-fit ​​slot that matches the second snap-fit ​​block is vertically opened on the outer side of the second drive rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the cooperation between the clamping block and the through hole achieves the function of flexibly clamping the optical fiber, solving the problem that traditional rigid clamping is prone to causing optical fiber breakage, and improving the safety and integrity of the optical fiber clamping process; the cooperation between the moving block and the central groove achieves the function of precisely squeezing the central groove to adjust the diameter of the through hole, solving the problem of difficulty in controlling the tightness of the optical fiber clamping, and improving the adaptability and stability of the optical fiber clamping; the cooperation between the ratchet and the pawl achieves the function of locking the rotation state of the transmission rod, solving the problem of optical fiber displacement caused by loose transmission structure during the grinding process, and improving the accuracy and consistency of optical fiber grinding; the cooperation between the limiting rod and the first driving rod and the second driving rod achieves the function of precisely limiting the position of the driving rod, solving the problem of positional offset after the driving component is reset, and improving the convenience and reset accuracy of the overall operation of the fixture; the cooperation between the first locking block and the first driving rod, and the second locking block and the second driving rod achieves the function of limiting the movement range of the driving rod, solving the problem of excessive movement of the driving rod damaging the component, and improving the service life and operational stability of the fixture. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a partial sectional view of the overall structure proposed in this utility model; Figure 3 This is a schematic diagram of the drive chamber and moving block structure proposed in this utility model; Figure 4 This is a schematic diagram of the mounting plate and support platform structure proposed in this utility model; Figure 5 This is a schematic diagram of the limiting groove and center groove structure proposed in this utility model; Figure 6 This is a schematic diagram of the ratchet and pawl structure proposed in this utility model; Figure 7 The present utility model proposes Figure 1 Enlarged schematic diagram of section A in the middle; Figure 8 The present utility model proposes Figure 2 Enlarged schematic diagram of section B; Figure 9 The present utility model proposes Figure 3 Enlarged schematic diagram of section C in the middle; Figure 10 The present utility model proposes Figure 5 Enlarged schematic diagram of section D in the middle; Figure 11 The present utility model proposes Figure 2 Enlarged schematic diagram of section E in the middle; Figure 12 The present utility model proposes Figure 6 Enlarged schematic diagram of the F section structure; Figure 13 The present utility model proposes Figure 4 Enlarged schematic diagram of the G section structure.

[0014] In the diagram, the following are the components: 1. Base plate; 2. Limiting groove; 3. Through hole; 4. Clamping block; 5. Center groove; 6. Drive chamber; 7. Positioning block; 8. Mounting plate; 9. Support platform; 10. Moving block; 11. Sliding groove; 12. Rotating gear; 13. Fixed platform; 14. Transmission rod; 15. Rotating gear; 16. Rotating platform; 17. Locking groove; 18. First drive groove; 19. Positioning groove; 20. Ratchet; 21. First drive rod; 22. Pawl; 23. First drive spring; 24. Second drive rod; 25. Limiting rod; 26. Positioning spring; 27. Second locking block; 28. Second locking spring; 29. ​​First locking block; 30. First locking spring; 31. Second drive groove; 32. Second drive spring; 33. Self-locking spring; 34. Self-driving block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Example: See Figures 1 to 13This utility model discloses an optical fiber polishing fixture, comprising a substrate 1 for easy installation of subsequent components; a cylindrical positioning block 7 is fixedly connected to the center of the top surface of the substrate 1, which facilitates subsequent fixation to external equipment and provides a central axis for the substrate 1; multiple fan-shaped equidistant limiting grooves 2 are formed on the top surface of the substrate 1 surrounding the positioning block 7; the limiting grooves 2 facilitate the opening of through holes 3 and subsequent clamping of optical fibers with the central groove 5; the top surface of the substrate 1 has through holes 3; the through holes 3 divide the limiting grooves 2 into two ends, facilitating the installation of clamping blocks 4; mounting holes are formed on the opposite outer surface of the through holes 3; flexible arc-shaped clamping blocks 4 are installed in the through holes 3 and connected to the mounting holes, which helps prevent over-clamping of the optical fiber. The fiber breaks due to the pressure difference. A fan-shaped central groove 5 is formed between the two limiting grooves 2 at the same end. Multiple equidistant driving chambers 6 are formed on the top surface of the substrate 1. The proximal ends of the driving chambers 6 are connected to the limiting grooves 2 and the distal ends of the central grooves 5, respectively. The driving chambers 6 facilitate the installation of limiting engagement components. The central groove 5 facilitates the clamping of the optical fiber through the through-holes 3 formed by the driving engagement limiting grooves 2 of the moving block 10. Multiple equidistant mounting plates 8 are installed on the top surface of the substrate 1, facilitating the installation of locking components. A locking driving component is installed on the top surface of the mounting plates 8, and a limiting engagement component is installed inside the driving chamber 6. The limiting engagement component includes a moving block 10 slidably connected to the bottom surface of the driving chamber 6, facilitating the driving and squeezing of the central groove 5. This drives the substrate 1 between the central groove 5 and the limiting groove 2 to clamp the optical fiber through the through hole 3; the proximal end of the moving block 10 is conical, and the proximal end of the moving block 10 is slidably connected to both sides of the inner wall of the distal end of the central groove 5; a sliding groove 11 is provided on the top surface of the moving block 10, and a toothed strip is provided on one side of the sliding groove 11, which facilitates the installation of the toothed strip; a rotating gear 12 that meshes with the toothed strip is provided in the sliding groove 11, and an internal hexagonal structure is provided on the top surface of the rotating gear 12, and the bottom surface of the rotating gear 12 is rotatably connected to the bottom surface of the driving chamber 6; the rotating gear 12 facilitates the driving of the toothed strip, thereby driving the moving block 10 to move; the rotating gear 12 meshes with the toothed strip provided in the sliding groove 11 for transmission, and a fixed [device] is installed above the inner cavity of the driving chamber 6. The fixed platform 13 has a fixing hole on the outer side of the upper end of the rotating gear 12, which facilitates the limiting of the rotating gear 12. The locking drive assembly includes a T-shaped support platform 9 installed on the top surface of the mounting plate 8. The vertical end of the support platform 9 is cylindrical, which facilitates the installation of subsequent transmission components. The axis of the vertical end of the support platform 9 corresponds to the rotating gear 12 in the drive chamber 6. The top surface of the support platform 9 has a circular transmission hole. The bottom surface of the transmission hole penetrates the mounting plate 8 and communicates with the top surface of the drive chamber 6. A transmission rod 14 is vertically installed in the transmission hole, which facilitates the installation of the rotating gear 15. The bottom surface of the transmission rod 14 is placed on the upper end of the drive chamber 6, and the top surface of the transmission rod 14 is fixedly connected to the rotating gear 15.The top surface of the rotating gear 15 has a toothed groove along its axis, facilitating the installation of the rotating platform 16. The bottom surface of the rotating gear 15 abuts against the top surface of the support platform 9. A rotating platform 16, meshing with the toothed groove, is sleeved on the outside of the rotating gear 15, allowing for easy manual rotation to drive the rotating gear 15. A connecting rod with a matching internal hexagonal structure is fixedly connected to the bottom axis of the transmission rod 14, and the transmission rod 14 is connected to the rotating gear 12 via the connecting rod. A circular locking groove 17 is provided at the lower end of the transmission hole of the support platform 9, facilitating the subsequent installation of the ratchet 20. The diameter of the locking groove 17 is larger than that of the transmission rod 14, and the support platform 9 is fitted with the locking groove. A vertical positioning groove 19 is provided on the outer side of the locking groove 17, which facilitates the subsequent installation of the limiting pawl 22. A vertical first drive groove 18 is provided at the upper end of the positioning groove 19, which facilitates the subsequent sliding installation of the first drive rod 21. The bottom surface of the positioning groove 19 is lower than the bottom surface of the locking groove 17. A vertical second drive groove 31 is provided on the outer side of the first drive groove 18, and a horizontal circular connecting groove is provided between the first drive groove 18 and the second drive groove 31. There is no partition between one side of the connecting groove and the first drive groove 18, and a partition is fixed between the other side of the connecting groove and the second drive groove 31. The second drive groove 31 facilitates the subsequent sliding installation of the second drive rod 24. In this invention, a ratchet 20 is fixedly connected to the lower end of the transmission rod 14 and engages with the locking groove 17. The ratchet 20 facilitates the subsequent engagement with the pawl 22 to form a self-locking structure. The first drive groove 18 is vertically slidably connected to the first drive rod 21, which facilitates the installation of the pawl 22. A connecting hole for engaging the first drive rod 21 is provided between the first drive groove 18 and the positioning groove 19. The lower end of the first drive rod 21 is placed in the positioning groove 19, and the first drive rod 21 is fixedly connected to the pawl 22 that engages with the ratchet 20. The pawl 22 facilitates the engagement with the ratchet 20 to form a self-locking structure. A self-locking chamber is provided between the positioning groove 19 and the locking groove 17 for engaging the pawl 22. The outer side of the pawl 22 is rotatably connected to the inner wall of the self-locking chamber of the positioning groove 19. A second drive rod 24 is vertically slidably connected, which facilitates the limiting rod 25 to be limited and fixed. A second drive spring 32 abuts against the bottom surface of the second drive rod 24, and the lower end of the second drive spring 32 abuts against the bottom surface of the second drive groove 31, facilitating the driving of the second drive rod 24. A longitudinally circular self-locking groove is formed at the distal end of the pawl 22, and a self-driving block 34 is slidably connected within the self-locking groove. The proximal end of the self-driving block 34 has rounded corners and abuts against the distal end of the pawl 22, facilitating the abutment against the pawl 22 and providing driving force for its reset. A self-locking spring 33 is installed between the self-driving block 34 and the inner opposite surface of the self-locking groove, with both ends of the self-locking spring 33 abutting against the inner opposite surfaces of the self-driving block 34 and the self-locking groove, respectively. The self-locking spring 33 facilitates the provision of driving force to the self-driving block 34; the first driving spring 23 is sleeved on the outer side of the lower end of the first driving rod 21, which facilitates the reset of the first driving rod 21; the lower end of the first driving spring 23 abuts against the bottom surface of the first driving groove 18; a transverse limiting hole is provided in the connecting groove at the upper end of the first driving groove 18 and the second driving groove 31, and a limiting rod 25 with an abutment plate is slidably connected in the limiting hole. Both ends of the limiting rod 25 are rounded, and the end of the limiting rod 25 with the abutment plate is connected to the first driving groove 18; the limiting rod 25 facilitates the engagement of the first driving rod 21 and the second driving rod 24; a limiting hole is provided in the connecting groove to match the limiting rod 25, and one end of the limiting rod 25 abuts against the outer side of the first driving rod 21. The first drive rod 21 and the second drive rod 24 have positioning holes with rounded corners at both ends that match the limiting rod 25. The limiting rod 25 is sleeved with a positioning spring 26, which is placed between the abutment plate on which the limiting rod 25 is installed and the partition plate fixed to the connecting groove. The positioning spring 26 provides driving force to the limiting rod 25 so that the limiting rod 25 abuts against the positioning hole at the upper end of the first drive rod 21. The upper end of the first drive groove 18 has multiple equidistant first snap-fit ​​grooves. The first snap-fit ​​blocks 29 are slidably connected in the first snap-fit ​​grooves. The first snap-fit ​​blocks 29 abut against and limit the first drive rod 21. The multiple first snap-fit ​​blocks 29 are respectively installed with first snap-fit ​​springs 30 on their far sides. The first snap-fit ​​springs 30 provide driving force to the first snap-fit ​​blocks 29.The first snap-fit ​​spring 30 has its two ends abutting against the inner opposing surfaces of the first snap-fit ​​block 29 and the first snap-fit ​​groove, respectively. The outer side of the first drive rod 21 has a vertically formed first snap-fit ​​groove that engages with the first snap-fit ​​block 29. The lower end of the second drive groove 31 has multiple equidistant second snap-fit ​​grooves. A second snap-fit ​​block 27 is slidably connected within each of the second snap-fit ​​grooves, facilitating the engagement and limiting of the second drive rod 24. Second snap-fit ​​springs 28 are installed on the distal surfaces of the multiple second snap-fit ​​blocks 27, with their two ends abutting against the inner opposing surfaces of the second snap-fit ​​blocks 27 and the second snap-fit ​​grooves, respectively. These second snap-fit ​​springs 28 facilitate the provision of driving force to the second drive rod 24. The outer side of the second drive rod 24 has a vertically formed second snap-fit ​​groove that engages with the second snap-fit ​​block 27.

[0017] Working principle: When using this utility model, the substrate 1 is installed on the grinding machine through the positioning block 7, or it can be positioned on an external device through the holes opened at the four corners of the substrate 1 for grinding. After the substrate 1 is fixed, the mounting plate 8 and the support table 9 (since the transmission structure is assembled internally, no attention is needed) are then installed and fixed in the corresponding mounting threaded holes on the substrate 1 (that is, the top surface corresponding to the drive chamber 6). The rotary table 16 is sleeved on the outside of the rotary gear 15 through the tooth groove corresponding to the rotary gear 15, and the installation is completed. The operator inserts two optical fibers through the bottom through-hole 3 with one hand, then rotates the rotary table 16. The rotation of the rotary table 16 drives the rotating gear 15 to rotate, which in turn drives the transmission rod 14 to rotate. The transmission rod 14 drives the ratchet 20, whose lower end is installed in the locking groove 17, to rotate. The ratchet 20 resists the drive of the pawl 22 (a "click-click-click" sound will be heard during the rotation of the rotary table 16; this sound is the "indicator sound" produced when the ratchet 20 resists the pawl 22, and the pawl 22 is hit by the reset force of the self-locking spring 33-driven self-driving block 34). During the rotation, the bottom end of the transmission rod 14 is connected to the rotating gear 12, which is installed in the drive chamber 6 and limited by the fixed table 13, via a connecting rod (this connection is between the mounting plate 8 and the support table). (9 corresponds to the installation), so the rotation of the transmission rod 14 will drive the rotating gear 12 to rotate in the sliding groove 11. The rotation of the rotating gear 12 will drive the rack groove opened in the sliding groove 11 to move. The movement of the rack groove will drive the moving block 10 to move. Since the proximal end of the moving block 10 abuts against both sides of the central groove 5, the movement of the moving block 10 will squeeze the central groove 5, so that the substrate 1 on both sides of the central groove 5 will be squeezed towards the limiting groove 2 respectively, thereby reducing the diameter of the through hole 3 and driving the clamping block 4 to clamp the optical fiber. When the operator feels that the optical fiber is not loose, the rotating table 16 can be stopped. The pawl 22 will lock the ratchet 20 to prevent the optical fiber from loosening during the subsequent polishing process. After the operator inserts the optical fiber into the substrate 1 in sequence, the optical fiber can be polished. After the optical fiber polishing is completed, the substrate 1 is positioned at a predetermined angle. Then, the operator presses the first drive rod 21. The downward movement of the first drive rod 21 resists the driving force of the first drive spring 23, which is sleeved inside the first drive groove 18 and connected to the outside of the first drive rod 21, thereby driving the pawl 22 to move towards the bottom surface of the positioning groove 19. This releases the restriction on the ratchet 20 (after moving to the distance to release the restriction on the ratchet 20, there is still a gap in the positioning groove 19 to provide movement space for subsequent reset). After the first drive rod 21 moves to the appropriate position, its... The limiting hole at the end is positioned by the limiting rod 25 driven by the positioning spring 26, which limits the first driving rod 21. The movement of the limiting rod 25 will release the limitation on the second driving rod 24. At this time, the second driving rod 24 will be lifted by the driving force of the second driving spring 32 installed in the second driving groove 31. However, because the second driving rod 24 is driven by the second snap-fit ​​spring 28 to the second snap-fit ​​block 27 through the second snap-fit ​​groove opened in the second driving rod 24, the maximum upward movement of the second snap-fit ​​block 27 is limited. The operator then reverses the rotation table 16 to reset the moving block 10 inside the drive chamber 6, causing the clamping block 4 to loosen and release the limit on the polished optical fiber, allowing the optical fiber to be removed. After the optical fiber is removed, the operator presses down on the first drive rod 21. Since both ends of the limiting rod 25 have rounded corners, and the limiting hole corresponding to the first drive rod 21 also has a corresponding rounded corner, when the first drive rod 21 is pressed down, the limiting rod 25 will be squeezed by the limiting hole to reset and disengage from the limiting hole. At this time, rotating the first drive rod 21 will reset the limit. Rod 25 re-aggregates against the outside of the first drive rod 21. Then, the operator presses the second drive rod 24, causing the limiting hole on the second drive rod 24 to engage with the other side of the limiting rod 25. Once a "beep" sound is heard, the first drive rod 21 is released. The first drive rod 21 moves upward under the drive of the first drive spring 23. However, because the first drive rod 21 is limited by the first locking spring 30 driving the first locking block 29, the maximum upward movement of the first drive rod 21 will not exceed the designed predetermined height. At this point, the equipment has completed a complete reset.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An optical fiber polishing fixture, comprising a substrate (1), characterized in that: A cylindrical positioning block (7) is fixed to the center of the top surface of the substrate (1), and a plurality of fan-shaped equidistant positioning grooves (2) are provided on the top surface of the substrate (1); a through hole (3) is provided on the top surface of the substrate (1); the through hole (3) divides the positioning groove (2) into two ends, and an installation hole is provided on the opposite side of the outer side of the through hole (3); a flexible arc-shaped clamping block (4) is installed in the through hole (3) and connected to the mounting hole, and a fan-shaped central groove (5) is provided between the two positioning grooves (2) at the same end; a plurality of equidistant driving chambers (6) are provided on the top surface of the substrate (1), and the proximal end of the driving chamber (6) is connected to the distal end of the positioning groove (2) and the central groove (5) respectively; a plurality of equidistant mounting plates (8) are installed on the top surface of the mounting plate (8), and a locking driving component is installed on the top surface of the driving chamber (6); a limiting fitting component is installed in the driving chamber (6).

2. The optical fiber polishing fixture according to claim 1, characterized in that: The limiting and fitting assembly includes a movable block (10) slidably connected to the bottom surface of the drive chamber (6). The proximal end of the movable block (10) is conical, and the proximal end of the movable block (10) is slidably connected to both sides of the inner wall of the distal end of the central groove (5). A sliding groove (11) is provided on the top surface of the movable block (10). A toothed strip is provided on one side of the sliding groove (11), and a rotating gear (12) meshing with the toothed strip is provided in the sliding groove (11). The top surface of the rotating gear (12) is provided with an internal hexagonal structure, and the bottom surface of the rotating gear (12) is rotatably connected to the bottom surface of the drive chamber (6). The rotating gear (12) meshes with the toothed strip provided in the sliding groove (11), and a fixed platform (13) is installed above the inner cavity of the drive chamber (6). The fixed platform (13) is provided with a fixing hole that matches the outer side of the upper end of the rotating gear (12).

3. The optical fiber polishing fixture according to claim 2, characterized in that: The locking drive assembly includes a T-shaped support platform (9) mounted on the top surface of the mounting plate (8). The vertical end of the support platform (9) is cylindrical, and the axis of the vertical end of the support platform (9) corresponds to the rotating gear (12) in the drive chamber (6). A circular transmission hole is provided on the top surface of the support platform (9). The bottom surface of the transmission hole penetrates the mounting plate (8) and communicates with the top surface of the drive chamber (6). A transmission rod (14) is vertically installed in the transmission hole. The bottom surface of the transmission rod (14) The transmission rod (14) is placed at the top of the drive chamber (6), and a rotating gear (15) is fixedly connected to the top surface of the transmission rod (14); the top surface of the rotating gear (15) has a tooth groove, and the bottom surface of the rotating gear (15) abuts against the top surface of the support platform (9); a rotating platform (16) that meshes with the tooth groove is sleeved on the outside of the rotating gear (15), and a connecting rod with an internal hexagonal structure is fixedly connected to the bottom surface of the transmission rod (14), and the transmission rod (14) is connected to the rotating gear (12) for transmission through the connecting rod.

4. The optical fiber polishing fixture according to claim 3, characterized in that: The lower end of the transmission hole of the support platform (9) is provided with a circular locking groove (17) that matches the axis. The diameter of the locking groove (17) is larger than that of the transmission rod (14). The support platform (9) is provided with a vertical positioning groove (19) on the outside of the locking groove (17). The upper end of the positioning groove (19) is provided with a vertical first driving groove (18). The bottom surface of the positioning groove (19) is lower than the bottom surface of the locking groove (17). The outer side of the first driving groove (18) is provided with a vertical second driving groove (31). A horizontal circular connecting groove is provided between the first driving groove (18) and the second driving groove (31). There is no partition between one side of the connecting groove and the first driving groove (18). A partition is fixed between the other side of the connecting groove and the second driving groove (31).

5. The optical fiber polishing fixture according to claim 4, characterized in that: The lower end of the transmission rod (14) is fixedly connected to a ratchet (20) that engages with the locking groove (17). The first drive groove (18) is vertically slidably connected to the first drive rod (21). A connecting hole for engaging the first drive rod (21) is provided between the first drive groove (18) and the positioning groove (19). The lower end of the first drive rod (21) is placed in the positioning groove (19). The first drive rod (21) is fixedly connected to a pawl (22) that engages with the ratchet (20). A self-locking chamber is provided between the positioning groove (19) and the locking groove (17) and the pawl (22). The outer side of the pawl (22) is rotatably connected to the inner wall of the self-locking chamber of the positioning groove (19). The second drive rod (24) is vertically slidably connected in the second drive groove (31). The bottom surface of the second drive rod (24) abuts against the second drive spring (32). The lower end of the second drive spring (32) abuts against the bottom surface of the second drive groove (31).

6. The optical fiber polishing fixture according to claim 5, characterized in that: The pawl (22) has a longitudinal circular self-locking groove at its distal end. A self-driving block (34) is slidably connected in the self-locking groove. The self-driving block (34) has a rounded corner at its proximal end and abuts against the distal end of the pawl (22). A self-locking spring (33) is installed between the self-driving block (34) and the inner opposite surface of the self-locking groove. The two ends of the self-locking spring (33) abut against the inner opposite surfaces of the self-driving block (34) and the self-locking groove, respectively.

7. The optical fiber polishing fixture according to claim 5, characterized in that: A first drive spring (23) is sleeved on the outer side of the lower end of the first drive rod (21). The lower end of the first drive spring (23) abuts against the bottom surface of the first drive groove (18). A transverse limiting hole is provided in the connecting groove at the upper end of the first drive groove (18) and the second drive groove (31). A limiting rod (25) with an abutment plate is slidably connected in the limiting hole. Both ends of the limiting rod (25) are rounded. The end of the limiting rod (25) with the abutment plate is connected to the first drive spring (21). The groove (18) is connected; a limiting hole for a matching limiting rod (25) is provided in the connecting groove. One end of the limiting rod (25) abuts against the outside of the first driving rod (21). The first driving rod (21) and the second driving rod (24) are provided with positioning holes with rounded corners at both ends of the limiting rod (25) at the same end. The limiting rod (25) is sleeved with a positioning spring (26). The positioning spring (26) is placed between the abutment plate on which the limiting rod (25) is installed and the partition plate fixed to the connecting groove.

8. The optical fiber polishing fixture according to claim 5, characterized in that: The upper end of the first drive groove (18) is provided with a plurality of equidistant first snap-fit ​​grooves. A first snap-fit ​​block (29) is slidably connected in the first snap-fit ​​groove. A first snap-fit ​​spring (30) is installed on the far side of the plurality of first snap-fit ​​blocks (29). The two ends of the first snap-fit ​​spring (30) abut against the inner opposite sides of the first snap-fit ​​block (29) and the first snap-fit ​​groove, respectively. The outer side of the first drive rod (21) is provided with a first snap-fit ​​groove that matches the first snap-fit ​​block (29). The lower end of the second drive groove (31) is provided with a plurality of equidistant second snap-fit ​​grooves. A second snap-fit ​​block (27) is slidably connected in the second snap-fit ​​groove. A second snap-fit ​​spring (28) is installed on the far side of the plurality of second snap-fit ​​blocks (27). The two ends of the second snap-fit ​​spring (28) abut against the inner opposite sides of the second snap-fit ​​block (27) and the second snap-fit ​​groove, respectively. The outer side of the second drive rod (24) is provided with a second snap-fit ​​groove that matches the second snap-fit ​​block (27).

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