A glue scraping jig for FA optical fiber array

Abstract

The utility model relates to the field of optical fiber array discloses a kind of glue scraping fixture of FA optical fiber array, including pedestal, clamping device is slidably connected on pedestal, clamping device is horizontally slid on pedestal by first ball screw, glue scraping mechanism is also slidably arranged on pedestal, glue scraping mechanism is horizontally slid on pedestal by second ball screw, clamping device and glue scraping mechanism sliding direction are perpendicular to each other, pedestal is provided with the glue scraping precision test box matched with clamping device, the utility model has the effect that the optical fiber array head is clamped to overflow glue surface is polished and scraped glue, prevents the effect that colloid influences optical fiber array interface light transmission.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic array technology, and in particular to a scraping clamp for FA fiber optic arrays. Background Technology

[0002] A fiber optic array (FA) is an array formed by mounting a bundle of optical fibers or a strip of optical fibers at specified intervals on a V-groove substrate. During the production process, a special process is required to place the bare fiber portion, after the fiber coating has been removed, into the V-groove. Then, a pressure device is used to pressurize the substrate and cover plate and fix them with adhesive. Since the adhesive is usually a high-flow photocurable adhesive, if the photocurable adhesive overflows from the gap between the substrate and the cover plate during processing, it will cause the cross-sectional end face of the optical fiber in the fiber array to be uneven. At the same time, if the adhesive overflows from the gaps on both sides, it will also affect the subsequent processing of the fiber array. Therefore, a device is needed to grind and scrape off the adhesive on the surface of the fiber array that may overflow.

[0003] Chinese invention patent application CN118858300A discloses a fixture for inspecting the polished end face of an optical fiber array in an optical module. The fixture includes a clamping unit for clamping and fixing the optical fiber array; a detection unit for inspecting the polished end face of the optical fiber array; an adjustment unit for aligning the detection unit with the clamping unit; and a disk and a drive unit for driving the disk to rotate around its central axis. Multiple rotationally symmetrically arranged clamping units are detachably connected to the disk. The polished end face of the optical fiber array located on each clamping unit is time-divisionally positioned within the imaging area of ​​the detection unit under the action of the drive unit. This invention allows the polished optical fiber array to be directly placed into the fixture for end face inspection without clamping, effectively improving inspection efficiency.

[0004] However, its shortcomings are that operators need to use optical magnification instruments to carefully observe the polished end face of each fiber array, which is not only inefficient, but also greatly increases the error rate of manual judgment, and the use of the equipment requires a lot of manpower. Utility Model Content

[0005] The purpose of this invention is to provide a scraping clamp for FA fiber arrays, which can hold the fiber array head and scrape off excess adhesive to prevent the adhesive from affecting the light transmission of the fiber array interface.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a scraping fixture for an FA fiber array, including a base, a clamping device slidably connected on the base, the clamping device sliding horizontally on the base via a first ball screw, a scraping mechanism slidably disposed on the base, the scraping mechanism sliding horizontally on the base via a second ball screw, the sliding directions of the clamping device and the scraping mechanism being perpendicular to each other, and a scraping accuracy test box cooperating with the clamping device being disposed on the base.

[0007] By adopting the above technical solution, the clamping device holds the fiber array in place and prevents it from moving. The edges of the fiber array are polished and coated with adhesive through the movement of the clamping device and the scraping mechanism. The lead screw can improve the accuracy of the movement of the clamping device and the scraping mechanism and prevent errors in the polishing. The scraping accuracy test box tests the polished fiber array head to determine whether the optical transmission of the fiber array interface meets the requirements.

[0008] A further feature of this invention is that the clamping device includes a clamping device base connected to the first ball screw and a clamping platform rotatably connected to the clamping device base. The clamping platform can rotate from a vertical state to a horizontal state and can rotate horizontally around the clamping device base.

[0009] By adopting the above technical solution, the clamping stage is rotatably connected to the clamping device base. After one side of the fiber array head is polished, the clamping stage is rotated 90 degrees so that the adjacent side of the array head is aligned with the scraping mechanism. Then, the clamping device moves to a suitable position on the first ball screw through the clamping device base for grinding. The clamping stage can also be rotated from a vertical state to a horizontal state so that the clamping stage is attached to the base plane when it is horizontal, which is convenient for cooperation with the scraping precision test box.

[0010] The present invention is further configured such that: the clamping table includes a clamping table main support rotatably connected to the base of the clamping device, the top of the clamping table main support is horizontal, a clamping positioning groove is provided on the upper surface, and a tension adjustment device that cooperates with the clamping positioning groove is fixed at the top of the clamping table main support.

[0011] By adopting the above technical solution, a clamping and positioning groove is opened on the horizontal surface at the top of the main support of the clamping stage, so that the fiber array head is just stuck in the positioning groove. A tension adjustment device is set on the rear end facing upward. The tension adjustment device can press the fiber array head from above and downward, exposing three sides that need to be polished.

[0012] A further feature of this invention is that the tension adjustment device includes an adjustment base horizontally fixed above the clamping positioning groove, a through screw hole is provided on the adjustment base, a tension adjustment bolt is rotatably connected to the screw hole, and an adjustment shim is horizontally rotatably connected to the lower end of the tension adjustment bolt.

[0013] By adopting the above technical solution, the fiber optic array head is placed between the adjustment base and the main support of the clamping platform. After the fiber optic array head is placed in the positioning groove, the tension adjustment bolt on the adjustment base is turned to move the adjustment shim at the lower end of the tension adjustment bolt downward until it contacts the top of the fiber optic array head and clamps it. The lower part of the adjustment shim can be made of flexible material to prevent scratches on the fiber optic array head. In order to prevent the adjustment shim from rotating with the tension adjustment bolt when it is turned downward, causing friction with the upper surface of the fiber optic array head, a rotatable connection is provided between the adjustment shim and the tension adjustment bolt.

[0014] A further feature of this invention is that the scraping mechanism includes a scraping mechanism base slidably connected to the second ball screw, and a grinding cylinder is detachably connected above the scraping mechanism base, the grinding cylinder being able to rotate from a vertical state to a horizontal state.

[0015] By adopting the above technical solution, the scraping mechanism polishes the fiber array head through the movement of the second ball screw via the scraping mechanism base. Since the grit of the sandpaper on the polishing cylinder needs to be changed in time during the polishing process, the polishing cylinder is designed to be detachable. Since there is an obstruction above the polishing cylinder, the replacement method is to rotate the polishing cylinder from a vertical position to a horizontal position and then disassemble it.

[0016] A further feature of this invention is that a grinding motor is detachably connected to the top of the grinding cylinder, the grinding motor drives the grinding cylinder to rotate, and the grinding motor is slidably connected to the upper auxiliary rod, which is parallel to the second ball screw.

[0017] A further feature of this invention is that the output end of the grinding motor and the upper end of the grinding cylinder are provided with screws of the same thickness, which are connected to each other by locking screws that cooperate with the screws.

[0018] A further feature of this invention is that the scraping precision test box includes a light-shielding box hinged to the base, a light source is provided on the side of the light-shielding box near the end face of the fiber array, and a through hole is provided on the side wall of the light-shielding box away from the end face of the fiber array to cooperate with the clamping device, and the edge of the through hole is wrapped with light-shielding velvet.

[0019] By adopting the above technical solution, after the grinding is completed, the clamping stage is rotated from the vertical state to the horizontal state. At this time, the fiber array head is attached to the base plane scraping precision test box. The light shield is closed downward. Due to the blocking of the light shielding cloth, the fiber array head is in a completely dark environment inside the light shield. After the light source is turned on, the light will shine on the end face of the fiber array interface. Each fiber fixed in the fiber array will receive the light signal and transmit it to the other end along the fiber.

[0020] A further feature of this invention is that an optical fiber signal detection port is provided on the base.

[0021] By adopting the above technical solution, after the other end of the optical fiber is inserted into the optical fiber signal detection port, the optical fiber signal detection port can receive the optical signal and its intensity transmitted from the light shield box, thereby determining whether the optical fiber path is complete and the optical transmittance of the optical fiber array interface.

[0022] The beneficial effects of this utility model are:

[0023] 1. By setting up a clamping device and a scraping mechanism, which move on the first ball screw and the second ball screw respectively, the excess glue on the edge of the fiber optic array head is polished and scraped to make the edge smoother and enhance the light transmission of the fiber optic array interface.

[0024] 2. The detection of the optical fiber path and whether the port can receive optical signals are achieved by using the scraping precision test box and the optical fiber signal detection port set on the base. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of a scraping clamp for a FA fiber array according to the present invention.

[0027] Figure 2 This is a schematic diagram of the overall structure of a scraping clamp for a FA fiber array according to the present invention.

[0028] Figure 3 This is a structural diagram of part A;

[0029] Figure 4 This is a schematic diagram of the scraping mechanism of this utility model;

[0030] Figure 5 This is a schematic diagram of the scraping precision test box of this utility model;

[0031] Figure 6 This is a schematic diagram of a fiber optic array head.

[0032] In the diagram, 1. Base; 2. Clamping device; 21. First ball screw; 22. Clamping device base; 23. Clamping table; 231. Clamping table main support; 232. Clamping positioning groove; 24. Tightness adjustment device; 241. Adjusting base; 242. Screw hole; 243. Tightness adjustment bolt; 244. Adjusting shim; 3. Scraping mechanism; 31. Second ball screw; 32. Scraping mechanism base; 33. Grinding cylinder; 331. Screw; 332. Locking screw; 34. Grinding motor; 35. Upper auxiliary bar; 4. Scraping accuracy test box; 41. Light shielding box; 42. Light source; 43. Through hole; 44. Light shielding felt; 5. Fiber optic signal detection port. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0034] This utility model embodiment specifically provides a scraping fixture for an FA fiber array, including a base 1, a clamping device 2 slidably connected on the base 1, the clamping device 2 sliding horizontally on the base 1 via a first ball screw 21, a scraping mechanism 3 slidably disposed on the base 1, the scraping mechanism 3 sliding horizontally on the base 1 via a second ball screw 31, the sliding directions of the clamping device 2 and the scraping mechanism 3 being perpendicular to each other, and a scraping accuracy test box 4 cooperating with the clamping device 2 being disposed on the base 1.

[0035] Since the top cover and base need to be bonded together with photocurable adhesive during the manufacturing process of fiber optic arrays, if too much adhesive is used, adhesive overflow will occur around the bonding area. In particular, adhesive overflow on the interface end face will affect its flatness, resulting in poor contact between the fiber optic array head and the interface. Adhesive overflow on both sides will affect the subsequent installation of the outer shell. Therefore, this utility model provides a device for preventing adhesive overflow around the array head during the grinding and manufacturing of fiber optic arrays.

[0036] During operation, the fiber array head is fixed at the clamping device 2. The clamping device 2 slides on the first ball screw 21 and the scraping mechanism 3 slides on the second ball screw 31 to polish the excess glue on the edge of the fiber array head. Since the degree of polishing of the interface end face affects the docking effect of the array head, a scraping accuracy test box 4 is set on the base 1 to detect the degree of polishing of the interface end face. The test box is used to detect whether the fiber path is not affected by polishing.

[0037] The clamping device 2 includes a clamping device base 22 connected to the first ball screw 21 and a clamping platform 23 rotatably connected to the clamping device base 22. The clamping platform 23 can rotate from a vertical state to a horizontal state and can rotate horizontally around the clamping device base 22.

[0038] The clamping stage 23 is rotatably connected to the clamping device base 22. After one side of the fiber array head is polished, the clamping stage 23 is rotated 90 degrees so that the adjacent side of the array head is aligned with the scraping mechanism 3. Then the clamping device 2 moves to a suitable position on the first ball screw 21 through the clamping device base 22 for grinding. The clamping stage 23 can also be rotated from a vertical state to a horizontal state so that the clamping stage 23 is attached to the plane of the base 1 when it is in a horizontal state, which is convenient for cooperation with the scraping accuracy test box 4.

[0039] Furthermore, the clamping table 23 includes a clamping table main support 231 rotatably connected to the clamping device base 22. The top of the clamping table main support 231 is horizontal, and a clamping positioning groove 232 is provided on the upper surface of the clamping table main support 231. A tension adjustment device 24 that cooperates with the clamping positioning groove 232 is fixed at the top of the clamping table main support 231.

[0040] The horizontal surface at the top of the main support 231 of the clamping stage facilitates the placement of the fiber optic array head. A clamping and positioning groove 232 is provided on the surface so that the fiber optic array head is precisely locked in the positioning groove, improving the accuracy of subsequent grinding. In order to fix the fiber optic array head in the clamping and positioning groove 232 while ensuring that there are no obstructions on the three sides to be ground, a tension adjustment device 24 is provided on the rear end face that does not need to be ground. The tension adjustment device 24 can press the fiber optic array head from top to bottom, while exposing the three sides that need to be ground.

[0041] The tension adjustment device 24 includes an adjustment base 241 that is horizontally fixed above the clamping positioning groove 232. The adjustment base 241 has a through screw hole 242, and a tension adjustment bolt 243 is threaded onto the screw hole 242. An adjustment shim 244 is horizontally rotatably connected to the lower end of the tension adjustment bolt 243.

[0042] The distance between the top horizontal planes of the adjusting base 241 and the main support 231 of the clamping stage can accommodate a fiber optic array head. After the array head is placed in the positioning groove, the tension adjusting bolt 243 on the adjusting base 241 is turned to move the adjusting shim 244 at the lower end of the tension adjusting bolt 243 downward until it contacts the top of the fiber optic array head and clamps it. In order not to damage the fiber optic array head, the lower part of the adjusting shim 244 can be made of flexible material. In order to prevent the adjusting shim 244 from rotating with the tension adjusting bolt 243 when it is turned downward, which would cause friction with the upper surface of the fiber optic array head, the adjusting shim 244 and the tension adjusting bolt 243 are rotatably connected.

[0043] In practice, the scraping mechanism 3 includes a scraping mechanism base 32 that is slidably connected to the second ball screw 31, and a grinding cylinder 33 is detachably connected above the scraping mechanism base 32. The grinding cylinder 33 can be rotated from a vertical state to a horizontal state.

[0044] The scraping mechanism 3 moves back and forth on the second ball screw 31 via the scraping mechanism base 32 to continuously polish the fiber array head. Since the grit of the sandpaper on the polishing cylinder 33 needs to be changed during the polishing process, the polishing cylinder 33 is made detachable for easy replacement. Since there is an obstruction above the polishing cylinder 33, the replacement method is to rotate the polishing cylinder 33 from the vertical state to the horizontal state and then disassemble it.

[0045] Among them, a grinding motor 34 is detachably connected to the upper part of the grinding cylinder 33. The grinding motor 34 drives the grinding cylinder 33 to rotate. The grinding motor 34 is slidably connected to the upper auxiliary rod 35, which is parallel to the second ball screw 31.

[0046] To improve the accuracy of the scraping mechanism 3 when it moves back and forth on the second ball screw 31, an auxiliary bar 35 is set above the grinding cylinder 33 so that both the upper and lower ends of the scraping mechanism 3 are connected to the bar, reducing the possibility of its shaking. Since the grinding cylinder 33 is polished by rapidly rotating and rubbing against the edge of the fiber array head, a grinding motor 34 is slidably connected to the upper auxiliary bar 35. The grinding motor 34 and the grinding cylinder 33 are detachable, making it convenient to replace the grinding cylinder 33.

[0047] Furthermore, the output end of the grinding motor 34 and the upper end of the grinding cylinder 33 are provided with screws 331 of the same thickness, which are connected to each other by locking screws 332 that cooperate with the screws 331.

[0048] The grinding motor 34 and the grinding cylinder 33 are connected by a screw 331 at the mating end. After aligning the output end of the grinding motor 34 with the screw 331 on the grinding cylinder 33, the locking screw 332 is fitted. The bottom of the locking screw 332 after being fixed abuts against the upper surface of the grinding cylinder 33 to prevent the grinding cylinder 33 from falling off due to slippage during rotation. The rotation direction of the motor is opposite to the unloading direction of the screw, so that the grinding cylinder 33 will not fall off when rotating.

[0049] Among them, the scraping precision test box 4 includes a light shield box 41 hinged on the base 1. A light source 42 is provided on the side of the light shield box 41 near the end face of the fiber array. A through hole 43 that cooperates with the clamping device 2 is opened on the side wall of the light shield box 41 away from the end face of the fiber array. The edge of the through hole 43 is wrapped with light shielding velvet 44.

[0050] The scraping precision test box 4 is set up to test whether the optical fiber path in the optical fiber array can transmit optical signals after polishing. After polishing is completed, the clamping stage 23 is rotated from the vertical state to the horizontal state. At this time, the optical fiber array head is attached to the scraping precision test box 4 on the plane of the base 1. The light shield 41 is closed downward. Since the light shielding velvet 44 can completely adhere to the outer surface of the optical fiber array head for shielding, the optical fiber array head is in a completely dark environment inside the light shield 41. At this time, the light source 42 is turned on, and the light will shine on the interface end face of the optical fiber array. Each optical fiber fixed in the optical fiber array will receive the optical signal and transmit it to the other end along the optical fiber. Since the interface end face will turn white and block the entry of the optical signal when the polishing is insufficient, the optical signal can be tested at the other end to detect whether the optical fiber array head has been polished to the point that its interface end face can receive the optical signal.

[0051] During implementation, an optical fiber signal detection port 5 is installed on the base 1.

[0052] Fiber optic signal detection ports are a mature existing technology. Once the other end of the fiber is inserted into the fiber optic signal detection port, the transmitted optical signal and its intensity can be detected, thereby determining whether the fiber optic array head has received the transmitted signal. The manufacturing of fiber optic signal detection ports can refer to the national standard GJB 1659A.

[0053] The above describes the basic principles, main features, and advantages of this utility model. The standard parts used in this utility model can all be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, which will not be described in detail here.

[0054] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A scraping fixture for a FA fiber array, comprising a base (1), characterized in that: A clamping device (2) is slidably connected to the base (1). The clamping device (2) slides horizontally on the base (1) via a first ball screw (21). A scraping mechanism (3) is also slidably arranged on the base (1). The scraping mechanism (3) slides horizontally on the base (1) via a second ball screw (31). The sliding directions of the clamping device (2) and the scraping mechanism (3) are perpendicular to each other. A scraping accuracy test box (4) that cooperates with the clamping device (2) is provided on the base (1).

2. The adhesive scraping fixture for an FA fiber array according to claim 1, characterized in that: The clamping device (2) includes a clamping device base (22) connected to the first ball screw (21) and a clamping platform (23) rotatably connected to the clamping device base (22). The clamping platform (23) can rotate from a vertical state to a horizontal state and can rotate horizontally around the clamping device base (22).

3. The adhesive scraping fixture for an FA fiber array according to claim 2, characterized in that: The clamping platform (23) includes a clamping platform main support (231) rotatably connected to the clamping device base (22). The top of the clamping platform main support (231) is horizontal, and a clamping positioning groove (232) is provided on the upper surface. A tension adjustment device (24) that cooperates with the clamping positioning groove (232) is fixed at the top of the clamping platform main support (231).

4. The adhesive scraping fixture for an FA fiber array according to claim 3, characterized in that: The tension adjustment device (24) includes an adjustment base (241) horizontally fixed above the clamping positioning groove (232). A through screw hole (242) is provided on the adjustment base (241). A tension adjustment bolt (243) is rotatably connected to the screw hole (242). An adjustment shim (244) is horizontally rotatably connected to the lower end of the tension adjustment bolt (243).

5. The adhesive scraping fixture for an FA fiber array according to claim 1, characterized in that: The scraping mechanism (3) includes a scraping mechanism base (32) slidably connected to the second ball screw (31), and a grinding cylinder (33) is detachably connected above the scraping mechanism base (32). The grinding cylinder (33) can rotate from a vertical state to a horizontal state.

6. The adhesive scraping fixture for an FA fiber array according to claim 5, characterized in that: A grinding motor (34) is detachably connected above the grinding cylinder (33). The grinding motor (34) drives the grinding cylinder (33) to rotate. The grinding motor (34) is slidably connected to the upper auxiliary rod (35). The upper auxiliary rod (35) is parallel to the second ball screw (31).

7. The adhesive scraping fixture for an FA fiber array according to claim 6, characterized in that: The output end of the grinding motor (34) and the upper end of the grinding cylinder (33) are provided with screws (331) of the same thickness, which are connected to each other by locking screws (332) that cooperate with the screws (331).

8. The adhesive scraping fixture for an FA fiber array according to claim 1, characterized in that: The scraping precision test box (4) includes a light-shielding box (41) hinged to the base (1). A light source (42) is provided on the side of the light-shielding box (41) near the end face of the fiber array. A through hole (43) that cooperates with the clamping device (2) is opened on the side wall of the light-shielding box (41) away from the end face of the fiber array. The edge of the through hole (43) is wrapped with light-shielding velvet (44).

9. The adhesive scraping fixture for an FA fiber array according to claim 8, characterized in that: The base (1) is provided with an optical fiber signal detection port (5).

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