Optical fiber polishing jig and polisher

Abstract

The utility model belongs to the technical field of grinding, disclose a kind of optical fiber grinding fixture and grinder, wherein optical fiber grinding fixture, including base, clamping mechanism and auxiliary cover, base is equipped with connecting groove, the sidewall of connecting groove is threadedly connected with first fastener;Clamping mechanism includes positioning block and press block, positioning block is arranged in connecting groove, first fastener is used to drive positioning block to adhere on the inner side wall of connecting groove, press block is equipped with second fastener, second fastener is threadedly connected with positioning block, positioning block and press block form the positioning groove of containing optical fiber product;Auxiliary cover is arranged in the positioning groove, one side of the auxiliary cover is abutted with the press block, the other side of the auxiliary cover is abutted with the optical fiber product.The utility model's optical fiber grinding fixture can improve the clamping stability of optical fiber product, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, and in particular to an optical fiber grinding fixture and grinding machine. Background Technology

[0002] In related technologies, optical fiber products include lithium niobate crystals and optical fiber bodies. Existing optical fiber products require grinding the end faces of the lithium niobate crystal and the optical fiber body to form angles during processing. However, the optical fiber body is exposed on the surface of the lithium niobate crystal, and the lithium niobate crystal has a small structural size. Moreover, the lithium niobate crystal is relatively soft and difficult to clamp and grind, resulting in a low yield of optical fiber products that cannot meet production requirements. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an optical fiber polishing fixture that can improve the clamping stability of optical fiber products and increase production efficiency.

[0004] This utility model also proposes a polishing machine having the aforementioned fiber optic polishing fixture.

[0005] According to a first aspect of the present invention, an optical fiber polishing fixture includes a base, a clamping mechanism, and an auxiliary cover plate. The base has a connecting groove, and a first fastener is threadedly connected to the side wall of the connecting groove. The clamping mechanism includes a positioning block and a pressing block. The positioning block is arranged in the connecting groove, and the first fastener is used to drive the positioning block to adhere to the inner side wall of the connecting groove. A second fastener passes through the pressing block, and the second fastener is threadedly connected to the positioning block. The positioning block and the pressing block form a positioning groove for accommodating an optical fiber product. The auxiliary cover plate is arranged in the positioning groove, with one side of the auxiliary cover plate abutting against the pressing block and the other side of the auxiliary cover plate abutting against the optical fiber product.

[0006] The fiber optic polishing fixture according to the embodiments of this utility model has at least the following beneficial effects: The fiber optic product and the auxiliary cover plate are both arranged in the positioning groove, and the auxiliary cover plate is attached to the surface of the fiber optic product. By screwing the second fastener into the positioning block, the pressure block can abut against the auxiliary cover plate, thus pressing the fiber optic product firmly into the positioning groove. This not only prevents the fiber optic body from being exposed but also reduces stress concentration on the fiber optic product, thereby improving the clamping stability of the fiber optic product. Furthermore, the positioning block is arranged in the connecting groove, and the first fastener is screwed into the base, allowing the first fastener to push the positioning block against the inner wall of the connecting groove. This fixes the fiber optic product on the base and prevents the clamping force of the first fastener from directly pressing on the fiber optic product. This not only ensures stable clamping of the fiber optic product but also prevents displacement of the fiber optic product, improving the polishing yield.

[0007] According to some embodiments of the present invention, the positioning block protrudes and is provided with a limiting rod, the side wall of the pressure block is provided with a limiting groove, and the limiting rod is located in the limiting groove.

[0008] According to some embodiments of this utility model, the number of limiting rods and limiting grooves is set to multiple, and the multiple limiting rods are respectively arranged on both sides of the positioning block, and the limiting rods and the limiting grooves correspond one-to-one.

[0009] According to some embodiments of the present invention, both side walls of the limiting groove are set to arc shape, and the limiting rod matches the shape of the limiting groove.

[0010] According to some embodiments of the present invention, the base is slidably connected to a push block, the end of the first fastener is connected to the push block, and the push block can abut against the limiting rod.

[0011] According to some embodiments of the present invention, the clamping mechanism further includes a rubber pad, which is arranged between the positioning block and the pressure block, and the second fastener passes through the rubber pad, which can abut against the optical fiber product.

[0012] According to some embodiments of the present invention, one end of the positioning block is provided with a protruding edge, which can abut against the end face of the base.

[0013] The polishing machine according to a second aspect of the present invention includes a fixed frame, a driving component, sandpaper, and an optical fiber polishing fixture according to a first aspect of the present invention. The fixed frame has a first mounting hole and a second mounting hole. The base is provided with a first mounting rod and a second mounting rod. The first mounting rod passes through the first mounting hole, and the second mounting rod passes through the second mounting hole. The driving component is used to drive the sandpaper to move so that the sandpaper polishes the optical fiber product.

[0014] The grinding machine according to the embodiments of the present invention has at least the following beneficial effects: by setting the optical fiber grinding fixture of the first aspect of the present invention, not only can the clamping stability of optical fiber products be improved, but also the installation and arrangement of optical fiber products can be facilitated, which helps to improve the grinding yield and production efficiency of optical fiber products.

[0015] According to some embodiments of the present invention, the first mounting rod is sleeved with an elastic element, which is used to drive the base to move away from the fixed frame.

[0016] According to some embodiments of this utility model, the number of the first mounting hole, the second mounting hole, and the optical fiber polishing fixture are all set to be multiple.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the optical fiber polishing fixture according to the first aspect of this utility model; Figure 2 This is an exploded view of the optical fiber polishing fixture according to the first aspect of the present invention; Figure 3 This is a schematic diagram of the clamping mechanism of the optical fiber polishing fixture according to the first aspect of this utility model; Figure 4 This is a schematic diagram of a grinding machine according to a second aspect embodiment of the present invention; Figure 5 This is a schematic diagram of the fixing frame of the grinding machine according to the second aspect of the present invention.

[0019] Figure label: Base 100, connecting groove 110, first fastener 111, push block 112, first mounting rod 120, second mounting rod 130; Clamping mechanism 200, positioning block 210, limiting rod 211, protruding edge 212, pressure block 220, second fastener 221, limiting groove 222, positioning groove 230, rubber pad 240; Auxiliary cover plate 300; Fixture 410, first mounting hole 411, second mounting hole 412. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] In related technologies, refer to Figure 3 Optical fiber products consist of lithium niobate crystals and optical fiber bodies. The end faces of the lithium niobate crystals have grooves to accommodate the optical fiber bodies. During processing, the end faces of both the lithium niobate crystals and the optical fiber bodies need to be ground to form an angle. However, lithium niobate crystals are small in size and relatively soft, making them difficult to clamp with existing fixtures. High clamping forces can easily crush the optical fiber products, while low clamping forces can cause them to shift, resulting in a low grinding yield. Furthermore, the optical fiber bodies are prone to detaching from the lithium niobate crystals or breaking, leading to grinding failures and impacting production yield, thus failing to meet production requirements.

[0025] Therefore, this utility model proposes an optical fiber grinding fixture, which can improve the clamping stability of optical fiber products and increase production efficiency.

[0026] Understandably, referring to Figures 1 to 3 The optical fiber polishing fixture of this utility model includes a base 100, a clamping mechanism 200, and an auxiliary cover plate 300. The base 100 has a connecting groove 110, and a first fastener 111 is threadedly connected to the side wall of the connecting groove 110. The clamping mechanism 200 includes a positioning block 210 and a pressing block 220. The positioning block 210 is arranged in the connecting groove 110. The first fastener 111 is used to drive the positioning block 210 to fit against the inner side wall of the connecting groove 110. A second fastener 221 passes through the pressing block 220 and is threadedly connected to the positioning block 210. The positioning block 210 and the pressing block 220 form a positioning groove 230 for accommodating optical fiber products. The auxiliary cover plate 300 is arranged in the positioning groove 230. One side of the auxiliary cover plate 300 abuts against the pressing block 220, and the other side of the auxiliary cover plate 300 is bonded to the optical fiber product.

[0027] The fiber optic product and auxiliary cover plate 300 are both arranged in the positioning groove 230, with the auxiliary cover plate 300 attached to the surface of the fiber optic product. By screwing the second fastener 221 into the positioning block 210, the pressure block 220 can abut against the auxiliary cover plate 300, pressing the fiber optic product firmly into the positioning groove 230. This not only prevents the fiber optic body from being exposed but also reduces stress concentration on the fiber optic product, thereby improving the clamping stability of the fiber optic product. Then, the positioning block 210 is arranged in the connecting groove 110, and the first fastener 111 is screwed into the base 100, allowing the first fastener 111 to push the positioning block 210 against the inner wall of the connecting groove 110. This fixes the fiber optic product on the base 100 and prevents the clamping force of the first fastener 111 from directly pressing on the fiber optic product. This not only ensures stable clamping of the fiber optic product but also prevents displacement of the fiber optic product, improving the polishing yield.

[0028] In this process, by setting an auxiliary cover plate 300 to abut against the optical fiber product, the auxiliary cover plate 300 can prevent the optical fiber body from detaching from the lithium niobate crystal, so that the optical fiber product can be connected stably, which helps to improve the stability of polishing. Moreover, the pressure block 220 abuts against the auxiliary cover plate 300, which can prevent the pressure block 220 from directly contacting the optical fiber product. This allows the clamping force of the pressure block 220 and the positioning block 210 to be evenly distributed on the optical fiber product through the auxiliary cover plate 300, thereby stabilizing the optical fiber product clamping, reducing the possibility of damage or loosening of the optical fiber product, and improving the reliability of polishing.

[0029] In addition, the auxiliary cover plate 300 abuts against the optical fiber product to ensure that the optical fiber product and the auxiliary cover plate 300 are polished simultaneously. During the polishing process, the optical fiber product and the auxiliary cover plate 300 remain in contact, which helps improve the stability of the polishing process. After polishing is complete, the auxiliary cover plate 300 can be separated from the optical fiber product. The operation is simple and improves the quality of polishing.

[0030] It should be noted that the auxiliary cover plate 300 can be made of glass, plastic, etc.; the first fastener 111 and the second fastener 221 can both be bolts, screws, etc., which will not be described in detail here.

[0031] Understandably, referring to Figure 3The positioning block 210 has a protruding limiting rod 211, and the side wall of the pressure block 220 has a limiting groove 222, with the limiting rod 211 located within the limiting groove 222. By positioning the limiting rod 211 within the limiting groove 222, the limiting rod 211 can slide within the limiting groove 222, thus limiting the movement direction of the pressure block 220. This allows the pressure block 220 to slide accurately along the length of the limiting rod 211, preventing positional deviation and ensuring stable contact between the pressure block 220 and the auxiliary cover plate 300. This reduces stress concentration at the auxiliary cover plate 300, resulting in uniform force distribution on the optical fiber product and improving its clamping stability.

[0032] Specifically, refer to Figure 3 Multiple limiting rods 211 and limiting grooves 222 are provided. Multiple limiting rods 211 are respectively arranged on both sides of the positioning block 210, with a one-to-one correspondence between the limiting rods 211 and the limiting grooves 222. The multiple limiting rods 211 and multiple limiting grooves 222 work together to limit the movement direction of the pressure block 220, effectively preventing positional deviation of the pressure block 220, ensuring accurate movement of the pressure block 220, reducing stress concentration caused by unstable clamping of the optical fiber product, improving the accuracy, stability, and reliability of the optical fiber product clamping, and further enhancing the polishing yield and quality of the optical fiber product.

[0033] Specifically, refer to Figure 3 Both sides of the limiting groove 222 are arc-shaped, and the limiting rod 211 matches the shape of the limiting groove 222. By setting both the side walls of the limiting groove 222 and the limiting rod 211 to be arc-shaped, the contact area between the positioning block 210 and the pressure block 220 can be increased, allowing the limiting rod 211 to stably fit against the inner wall of the limiting groove 222. This improves the sliding stability of the pressure block 220 in the positioning block 210, reduces the positional offset of the pressure block 220, and improves the clamping stability of the optical fiber product.

[0034] In addition, the side walls of the limiting groove 222 and the limiting rod 211 are both arc-shaped, which allows for a smooth transition between the side walls and end faces of the limiting rod 211 and the limiting groove 222, preventing stress concentration, helping to extend the service life of the clamping mechanism 200 and improve its reliability.

[0035] Specifically, refer to Figure 1 and Figure 2A push block 112 is slidably connected to the base 100. The end of the first fastener 111 is connected to the push block 112, and the push block 112 can abut against the limiting rod 211. The push block 112 is slidably connected to the base 100, and the end of the first fastener 111 is connected to the push block 112 so that when the first fastener 111 is driven to rotate, the first fastener 111 can drive the push block 112 to slide in the connecting groove 110, so that the push block 112 can abut against the limiting rod 211. This can prevent the end of the first fastener 111 from rubbing against the limiting rod 211, thereby helping to extend the service life and improve the reliability of the fiber polishing fixture.

[0036] In addition, by setting the push block 112 to be slidably connected to the base 100, the push block 112 can move accurately in the base 100, and the push block 112 can smoothly abut against the limit rod 211, thereby enabling the positioning block 210 to be stably attached to the inner wall of the positioning groove 230, improving the clamping stability of the optical fiber product.

[0037] It should be noted that the length of the limiting rod 211 is greater than or equal to the thickness of the pressure block 220, so that when the first fastener 111 pushes the push block 112 to slide in the connecting groove 110, the push block 112 can abut against the end of the limiting rod 211, thereby preventing the push block 112 from pressing the pressure block 220, so that the clamping force of the optical fiber product can be maintained by the second fastener 221, so that the optical fiber product can be clamped stably, avoiding damage to the optical fiber product and improving the polishing yield.

[0038] Understandably, referring to Figure 1 and Figure 3 The clamping mechanism 200 also includes a rubber pad 240, which is arranged between the positioning block 210 and the pressure block 220. A second fastener 221 passes through the rubber pad 240, allowing the rubber pad 240 to abut against the optical fiber product. By arranging the rubber pad 240 between the positioning block 210 and the pressure block 220, and allowing the second fastener 221 to pass through the rubber pad 240, the rubber pad 240 can abut against the optical fiber product when the second fastener 221 pushes the pressure block 220 closer to the positioning block 210. This allows the rubber pad 240 to press the optical fiber body firmly against the positioning block 210, thereby reducing the possibility of optical fiber body displacement, enabling stable polishing of the optical fiber product, and improving the yield rate.

[0039] In addition, by using the rubber pad 240 to abut against the optical fiber product, the clamping force can be evenly distributed, avoiding excessive concentration of clamping force that could damage the optical fiber product. This effectively protects the structural integrity of the optical fiber product and reduces the possibility of damage caused by clamping.

[0040] Understandably, referring to Figures 1 to 3One end of the positioning block 210 is provided with a protruding edge 212, which can abut against the end face of the base 100. By setting the protruding edge 212 to abut against the end face of the base 100, the positioning block 210 can be positioned on the base 100 by the protruding edge 212, thereby positioning the positioning block 210 in the vertical direction, so that the polishing amount of the optical fiber product can be kept constant, and the processing consistency of the optical fiber product can be improved.

[0041] Understandably, referring to Figure 4 and Figure 5 The polishing machine of the second aspect of this utility model includes a fixed frame 410, a driving member (not shown in the figure), sandpaper (not shown in the figure), and an optical fiber polishing fixture of the first aspect of this utility model. The fixed frame 410 has a first mounting hole 411 and a second mounting hole 412. The base 100 is provided with a first mounting rod 120 and a second mounting rod 130. The first mounting rod 120 passes through the first mounting hole 411, and the second mounting rod 130 passes through the second mounting hole 412. The driving member is used to drive the sandpaper to move so that the sandpaper polishes the optical fiber product.

[0042] An auxiliary cover plate 300 is placed on the optical fiber product, and the auxiliary cover plate 300 and the optical fiber product are arranged in the positioning groove 230. Then, the pressure block 220 is driven to move closer to the positioning block 210 by the second fastener 221, so that the optical fiber product and the auxiliary cover plate 300 are fixed in the positioning groove 230. Next, the positioning block 210 is placed in the connecting groove 110, so that the first fastener 111 pushes the positioning block 210 to press it against the inner side wall of the connecting groove 110. Finally, the first mounting rod 120 is inserted into the first mounting hole 411, and the second mounting rod 130 is inserted into the second mounting hole 412, so that the optical fiber polishing fixture can be fixed on the fixing frame 410, preventing the optical fiber polishing fixture from shaking on the fixing frame 410. The sandpaper is driven by the driving component to polish the optical fiber product and the auxiliary cover plate 300. During the polishing process, the auxiliary cover plate 300 can limit the position of the optical fiber body, prevent the optical fiber body from shifting, and improve the polishing stability of the optical fiber product.

[0043] It should be noted that by inserting the first mounting rod 120 and the second mounting rod 130 into the first mounting hole 411 and the second mounting hole 412 respectively, the fiber optic polishing fixture can be quickly installed in the fixing frame 410, which simplifies the installation process, improves assembly efficiency, and at the same time limits the position of the fiber optic polishing fixture, so that the sandpaper can stably polish the fiber optic product, thereby improving the quality and efficiency of polishing.

[0044] The driving component can be a motor, or a motor combined with a crank-connecting rod mechanism, etc., and is not limited here.

[0045] Understandably, referring to Figure 4 and Figure 5 The first mounting rod 120 is fitted with an elastic element (not shown in the attached figure), which drives the base 100 to move away from the fixing frame 410. The elastic element drives the base 100 to move away from the fixing frame 410, so that the optical fiber product can keep in contact with the sandpaper, so as to facilitate the sandpaper grinding and thus improve the grinding efficiency of the optical fiber product.

[0046] In addition, by setting up elastic elements, the position of the base 100 can be floated, allowing the polishing pressure of the optical fiber product to be adjusted accordingly. This reduces the damage to the optical fiber product caused by vibration and impact during the polishing process, lowers the risk of the optical fiber product breaking or being damaged on the surface due to vibration, and further improves the polishing yield of the optical fiber product.

[0047] Among them, the elastic element can be a compression spring, or a rubber part, silicone part, etc. with elasticity, which will not be elaborated on one by one.

[0048] It should be noted that the first mounting rod 120 is configured as a stepped shaft so that one end of the elastic element can be positioned axially on the first mounting rod 120, so that the position of the first mounting rod 120 can be adjusted by the elastic element.

[0049] Understandably, referring to Figure 4 and Figure 5 The number of first mounting holes 411, second mounting holes 412, and fiber polishing fixtures are all set to multiple. By opening multiple first mounting holes 411 and multiple second mounting holes 412 on the fixing frame 410, multiple fiber polishing fixtures can be installed on the fixing frame 410. This allows multiple fiber products to be polished when the drive unit drives the sandpaper to move, improving production efficiency. Moreover, it ensures that each fiber product is subjected to uniform force and accurate positioning during polishing, thereby improving the stability and consistency of polishing quality.

[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An optical fiber polishing fixture, characterized in that, include: The base has a connecting groove, and a first fastener is threadedly connected to the side wall of the connecting groove; The clamping mechanism includes a positioning block and a pressing block. The positioning block is arranged in the connecting groove. A first fastener is used to drive the positioning block to fit against the inner wall of the connecting groove. A second fastener passes through the pressing block. The second fastener is threadedly connected to the positioning block. The positioning block and the pressing block form a positioning groove for accommodating the optical fiber product. An auxiliary cover plate is arranged in the positioning groove. One side of the auxiliary cover plate abuts against the pressure block, and the other side of the auxiliary cover plate abuts against the optical fiber product.

2. The optical fiber polishing fixture according to claim 1, characterized in that, The positioning block has a protruding limiting rod, and the side wall of the pressure block has a limiting groove, with the limiting rod located in the limiting groove.

3. The optical fiber polishing fixture according to claim 2, characterized in that, The number of limiting rods and limiting grooves is set to multiple, and the multiple limiting rods are respectively arranged on both sides of the positioning block, with each limiting rod corresponding to a limiting groove.

4. The optical fiber polishing fixture according to claim 2, characterized in that, Both sides of the limiting groove are arc-shaped, and the limiting rod matches the shape of the limiting groove.

5. The optical fiber polishing fixture according to claim 2, characterized in that, The base is slidably connected to a push block, and the end of the first fastener is connected to the push block, which can abut against the limiting rod.

6. The optical fiber polishing fixture according to claim 1, characterized in that, The clamping mechanism also includes a rubber pad, which is arranged between the positioning block and the pressure block, and the second fastener passes through the rubber pad, which is capable of abutting against the optical fiber product.

7. The optical fiber polishing fixture according to claim 1, characterized in that, One end of the positioning block is provided with a protruding edge, which can abut against the end face of the base.

8. A grinding mill, characterized in that, The device includes a mounting frame, a driving component, sandpaper, and an optical fiber polishing fixture as described in any one of claims 1 to 7. The mounting frame has a first mounting hole and a second mounting hole. The base is provided with a first mounting rod and a second mounting rod. The first mounting rod passes through the first mounting hole, and the second mounting rod passes through the second mounting hole. The driving component is used to drive the sandpaper to move so that the sandpaper polishes the optical fiber product.

9. The grinding machine according to claim 8, characterized in that, The first mounting rod is fitted with an elastic element, which is used to drive the base to move away from the fixing frame.

10. The grinding machine according to claim 8, characterized in that, The number of the first mounting hole, the second mounting hole, and the optical fiber polishing fixture is set to multiple.

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