Image fiber polishing clamp

Abstract

The utility model provides an image fiber polishing clamp, which relates to the field of fiberscope, the clamp comprises a base part, a polishing head, a leveling mechanism and a clamping device, the base part comprises a support platform; the polishing head comprises a connecting platform and a mounting part, the mounting part is connected to the bottom surface of the connecting platform, the mounting part is provided with a mounting hole and an image fiber hole which are communicated in the axial direction, and the connecting platform is connected to the supporting platform through a leveling mechanism; the clamping device is connected with the mounting hole in a pluggable mode, and when the clamping device is connected with the mounting hole, the image fiber clamped by the clamping device can penetrate through the image fiber hole. The installation part in the polishing head is leveled through the leveling mechanism, the position posture of the image fiber in the polishing process can be accurately adjusted, it is guaranteed that the end face of the image fiber is perpendicular to the polishing plane, the problems that the end face of the image fiber is forked and damaged due to the fact that the end face of the image fiber is not perpendicular in the polishing process are solved, and the polishing quality of the image fiber is guaranteed.

Description

TECHNICAL FIELD

[0001] The application discloses an image fiber polishing clamp and belongs to the technical field of fiber mirrors. BACKGROUND

[0002] The optical fibers in the image fiber are arranged in parallel, and the positions of the two ends of each optical fiber on the light beam end face correspond to each other. When transmitting light, each optical fiber transmits an information element alone, and the image can be transmitted from one end to the other end. The image fiber is usually used as a fiber endoscope and has been widely used in industry and medical treatment.

[0003] The dactyloglyphoscope is used for transmitting the image gathered by the front end lens of the image fiber to the end of the image fiber. The bifurcation and breakage of the end face of the image fiber can cause the missing of pixel points of the transmitted image. Therefore, the processing quality of the end face of the image fiber has a crucial influence on the imaging of the dactyloglyphoscope.

[0004] In the previous production process, the polishing process of the image fiber is that a production personnel fastens one end of the image fiber by using a drill chuck, and then holds the drill chuck to polish on a four-corner press grinding machine. This operation method seriously depends on the experience and skill of the operator. If the operator is not skillful, the polishing is shaken, the perpendicularity of the end face of the image fiber to the polishing end face is not ideal, the end face of the image fiber is bifurcated or broken, and thus the image transmission effect is affected. SUMMARY

[0005] The application aims at solving the problem in the prior art that the perpendicularity of the end face of the image fiber to the polishing end face is not ideal.

[0006] Technical scheme: In order to achieve the above-mentioned application purposes, the utility model adopts the following technical scheme:

[0007] The utility model discloses an image fiber polishing clamp, including base part, polishing head, level adjusting mechanism and clamping device, the base part includes support platform, the polishing head includes connecting platform and installation part, and the installation part is connected in the bottom surface of connecting platform, and the installation part is equipped with the installation hole and the image fiber hole that are connected in communication along the axial direction, and the connecting platform is connected on the support platform through the level adjusting mechanism, the clamping device and installation hole plug -in connection, when the clamping device and installation hole are connected, the image fiber clamped by the clamping device can pass through the image fiber hole.

[0008] The clamping device and the installation hole are plug-in connected, preferably at least a part of the clamping device and the installation hole are plug-in connected, and the other part of the clamping device is located outside the installation hole. More specifically, when the clamping device and the installation hole are connected, the bottom of the clamping device is located in the installation hole, and the top of the clamping device is located outside the installation hole.

[0009] Part of the clamping device is located in the mounting hole, and the other part is located outside the mounting hole, which can facilitate the gripping of the clamping device, the convenient insertion of the clamping device into the mounting hole, and the convenient pulling of the clamping device out of the mounting hole.

[0010] Further, the leveling mechanism comprises a plurality of leveling bolts; the connecting platform is provided with a plurality of threaded holes, each leveling bolt is connected in a threaded hole, and the bottom surface of the leveling bolt abuts against the connecting platform.

[0011] Specifically, the abutment in the present application refers to the contact between the bottom surface of the leveling bolt and the connecting platform, and there is no hard connection relationship such as welding or gluing between the two. The plurality of threaded holes are arranged at the edge of the connecting platform to ensure the supporting effect of the connecting platform after connecting the leveling bolts.

[0012] Further, the top surface of the connecting platform is provided with a groove; the bottom surfaces of the plurality of leveling bolts are located in the groove and are uniformly distributed in the groove.

[0013] More specifically, the groove is a groove, and the leveling bolts are uniformly distributed in the groove in the circumferential direction; or the groove is a polygonal groove, and the leveling bolts are arranged at the center of each side of the groove.

[0014] The shape of the groove depends on the shape of the clamping device. If the shape of the clamping device is circular, the groove is arc-shaped, and if the shape of the clamping device is square, the groove is a square groove.

[0015] Further, the fiber hole and the mounting hole are communicated through a tapered hole, the diameter of the tapered hole gradually decreases from the mounting hole to the fiber hole; the mounting hole, the tapered hole and the fiber hole are coaxially arranged.

[0016] Further, the clamping device comprises two clamping heads that can be closed, and a clamping groove is arranged in the axial direction of the clamping head; an inner core is arranged in the clamping head, the hardness of the inner core is less than the hardness of the clamping head, and the clamping groove is located in the inner core.

[0017] More specifically, the inner core is a soft inner core, such as an inner core made of rubber or the like. This design can prevent damage to the optical fiber when clamping the optical fiber.

[0018] Further, the mounting portion is connected perpendicularly to the bottom surface of the connecting platform, and the mounting portion and the connecting platform are integrally formed.

[0019] Further, the support platform is provided with a through hole penetrating the support platform; after the connecting platform and the support platform are connected, the bottom end of the mounting portion is located in the through hole.

[0020] More specifically, the shape of the through hole and the shape of the groove body and the shape of the clamping device are matched, if the shape of the clamping device is circular, the through hole is a circular through hole, if the shape of the clamping device is square, the through hole is a square through hole.

[0021] Further, the through hole is located at the center of the support platform.

[0022] In the present application, the through hole is arranged at the center of the support platform, which can ensure that the center of gravity of the support platform is still close to the center of the support platform after the connection platform is placed on the support platform, thereby preventing the support platform from toppling over.

[0023] Further, the bottom surface of the support platform is provided with a plurality of supporting legs, and the bottom end surface of the supporting leg is planar.

[0024] In the present application, the bottom end surface of the supporting leg is planar, which can make the supporting leg more stable when supporting the support platform.

[0025] Further, the top surface of the connection platform is provided with a placing groove, and a horizontal bubble is detachably connected in the placing groove.

[0026] The horizontal bubble mentioned in the present application is a prior art, also known as a water level bubble. Advantages

[0027] The present application sets the connection platform connected to the support platform through the leveling mechanism, which can level the connection platform through the leveling mechanism during use, that is, the position of the installation part is adjusted, the position and attitude of the optical fiber during polishing can be accurately adjusted, and the end surface of the optical fiber is perpendicular to the polishing plane, which solves the problem of optical fiber end surface splitting and damage caused by non-perpendicularity during polishing, and ensures the quality of optical fiber polishing.

[0028] The clamping device is connected with the mounting hole in a plug-in connection mode, so that the installation and replacement of the optical fiber are very convenient and fast, and the operator can quickly insert or pull out the clamping device from the mounting hole, thereby realizing the quick replacement of the optical fiber and improving the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a whole structure schematic view of the polishing clamp of the present application;

[0030] Figure 2 It is Figure 1 Structure schematic views of different perspectives;

[0031] Figure 3 It is a connection schematic view of the base part, the polishing head and the leveling mechanism in the present application;

[0032] Figure 4 It is a structure schematic view of the base part in the present application;

[0033] Figure 5 It is the connection schematic view of the polishing head and the leveling mechanism in the utility model;

[0034] Figure 6 It is the sectional view of the polishing head in the utility model.

[0035] Wherein, 1, base part;11, support platform;111, through hole;112, groove;12, support leg;2, polishing head;21, connecting platform;211, screw hole;212, placing groove;22, mounting part;221, mounting hole;222, conical hole;223, fiber hole;3, leveling mechanism;4, clamping device;5, level bubble. DETAILED DESCRIPTION

[0036] The utility model will be further described below with reference to the drawings.

[0037] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0038] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0039] The objective of the present application is to provide an optical fiber polishing jig to solve the problem of non-ideal perpendicularity between the optical fiber end face and the polishing end face caused by manual polishing. Through the design of the polishing jig, only the perpendicularity of the mounting portion relative to the support platform needs to be adjusted before polishing, and the perpendicularity of the optical fiber end face can be ensured during polishing, preventing the optical fiber end face from being forked and damaged due to non-perpendicularity during polishing, and ensuring the quality of optical fiber polishing. Embodiment 1

[0040] As shown in Figures 1 to 6 , an optical fiber polishing jig includes a base portion 1, a polishing head 2, a leveling mechanism 3, and a clamping device 4. The base portion 1 includes a support platform 11. The polishing head 2 includes a connecting platform 21 and a mounting portion 22. The mounting portion 22 is connected to the bottom surface of the connecting platform 21. The mounting portion 22 is provided with a mounting hole 221 and an optical fiber hole 223 that are connected in series along the axial direction. The connecting platform 21 is connected to the support platform 11 through the leveling mechanism 3. The clamping device 4 is connected to the mounting hole 221 through plugging. When the clamping device 4 is connected to the mounting hole 221, the optical fiber clamped by the clamping device 4 can pass through the optical fiber hole 223. In the present application, the leveling mechanism 3 is used to adjust the angle of the connecting platform 21 relative to the support platform 11.

[0041] When the optical fiber polishing jig is in use, first, the support platform 11 is placed on the grinding machine. The relative angle between the connecting platform 21 of the polishing head 2 and the support platform 11 of the base portion 1 is adjusted through the leveling mechanism 3 to ensure that the axis of the mounting portion 22 is perpendicular to the support platform. Then, the clamping device 4 that fixes the optical fiber is inserted into the mounting hole 221, and the bottom end of the optical fiber passes through the optical fiber hole 223. During polishing, since the perpendicularity of the mounting portion has been pre-calibrated, the coaxial design of the clamping device and the optical fiber hole further constrains the angle of the optical fiber end face, ensuring that the end face is always perpendicular to the polishing surface during polishing.

[0042] The optical fiber polishing jig replaces manual holding with a mechanical structure, eliminates errors caused by inexperience, ensures that the perpendicularity of the optical fiber end face to the polishing surface meets the process requirements, and solves the quality problems of optical fiber fork and damage. The plugging design of the clamping device simplifies the replacement process of the optical fiber, and the clamping device can be reused after leveling once, reducing the repeated calibration time.

[0043] In a further embodiment, as shown in Figure 5 and Figure 6 , the leveling mechanism 3 includes a plurality of leveling bolts. The connecting platform 21 is provided with a plurality of threaded holes 211. Each leveling bolt is connected to one threaded hole 211, and the bottom surface of the leveling bolt abuts against the connecting platform 21. In this embodiment, the abutment between the bottom surface of the leveling bolt and the connecting platform 21 means that the bottom surface of the leveling bolt is in contact with the connecting platform 21, and the connection between the two is a contact connection. This design makes it easy to pick up the leveling bolt for adjustment.

[0044] Specifically, the number of leveling bolts is the same as the number of threaded holes 211, and at least three are required. In one embodiment, three threaded holes 211 are provided on the connecting platform 21, and three leveling bolts are provided in the leveling mechanism 3. In another embodiment, four threaded holes 211 are provided on the connecting platform 21, and four leveling bolts are provided in the leveling mechanism 3.

[0045] In use, each leveling bolt is screwed into the threaded hole 211 on the connecting platform, with the bottom surface of the bolt in contact with the support platform, forming a multi-point support structure. By rotating each leveling bolt, the depth of the bolt is changed, thereby adjusting the local height difference between the connecting platform 21 and the support platform 11. For example, if a side needs to be raised, the bolt at that position is rotated clockwise to increase the depth of the bolt; if a side needs to be lowered, the bolt is rotated counterclockwise to reduce the depth of the bolt.

[0046] By adjusting multiple bolts, the entire connecting platform is brought to a level state, thereby ensuring that the axis of the mounting portion 22 is perpendicular to the support platform. After leveling is completed, the self-locking ability of the bolt and the thread can be used to lock the leveled state, and a locking nut can also be provided on the leveling bolt to fix the leveling bolt, preventing the bolt from loosening due to vibration during polishing and ensuring stable perpendicularity.

[0047] The leveling mechanism of the present application adopts the form of leveling bolts, which can achieve high-precision fine adjustment through the small pitch of the thread, and can finely control the inclination angle of the connecting platform point by point to ensure perpendicularity. Multiple leveling bolts are provided to adapt to local unevenness of the support platform through multi-point adjustment. The leveling bolt does not require a complex transmission mechanism, and has a simple structure, low cost and low failure rate, making it suitable for long-term use in industrial environments.

[0048] In a further embodiment, a placement groove 212 is provided on the top surface of the connecting platform 21, and a horizontal bubble is detachably connected in the placement groove 212. By providing a horizontal bubble, rapid leveling can be assisted. Specifically, by observing the horizontal bubble, it can be determined whether leveling is needed or which leveling bolt needs to be adjusted, thereby assisting in rapid leveling.

[0049] In the present application, the detachable form is a direct placement form, i.e., the horizontal bubble is directly placed in the placement groove 212. Further, a magnet can be provided in the placement groove to attract or a buckle can be placed to further ensure the stability of the horizontal bubble 5.

[0050] In one embodiment, as shown in Figure 1 , Figure 3 and Figure 4As shown, the top surface of the connecting platform 21 is provided with a groove 112, which is an annular groove. The bottom surfaces of the plurality of leveling bolts are located in the groove 112 and are uniformly distributed in the groove 112 in the circumferential direction. The leveling bolts of the present application are uniformly distributed in the circumferential direction of the groove, such as 3-4 leveling bolts distributed at an interval of 120° or 90°, forming a symmetrical support structure to ensure the overall stability after leveling.

[0051] Further, the annular geometric center of the groove 112 coincides with the axis of the mounting portion 22, and the distribution of the bolts along the groove can forcibly ensure that the action point of the adjusting force is symmetrical around the axis, thereby directly constraining the tilting direction of the connecting platform and reducing the verticality deviation caused by asymmetric support.

[0052] As shown in Figure 3 and Figure 4 , the provision of the groove 112 also provides a clear visual reference for the operator, facilitating quick positioning and placement of each leveling bolt. In use, the leveling bolt can be directly placed in the groove 112, without the need for tedious placement, achieving quick placement of the leveling bolt.

[0053] In one embodiment, as shown in Figure 6 , the image fiber hole 223 and the mounting hole 221 are connected by a tapered hole 222, and the diameter of the tapered hole 222 gradually decreases from the mounting hole 221 to the image fiber hole 223. In the present application, the image fiber hole 223 is cylindrical and has the same diameter. The mounting hole 221 is conical and the bottom end is tapered.

[0054] The present application designs the tapered hole 222 with a diameter that gradually decreases from the mounting hole 221 to the image fiber hole 223. This structure can provide good guidance for the image fiber. During the insertion of the clamping device 4, the shape of the tapered hole can guide the image fiber in the clamping device 4 to accurately enter the image fiber hole 223. When the image fiber enters from the mounting hole end, the gradually decreasing diameter of the tapered hole can ensure that the image fiber can smoothly and accurately reach the position of the image fiber hole 223, improving the accuracy of image fiber installation.

[0055] Further, the mounting hole 221, the tapered hole 222 and the image fiber hole 223 are coaxially arranged. After the image fiber is installed, the axis of the image fiber remains consistent with the corresponding axis of the clamp. During the polishing process of the image fiber, this coaxiality can avoid unnecessary stress or shaking of the image fiber due to eccentricity, etc., ensuring the polishing quality. Embodiment 2

[0056] Embodiment 2 is based on the same inventive concept as embodiment 1, and the repeated parts of embodiment 1 will not be described in this embodiment.

[0057] In this embodiment, as shown in Figure 6As shown, a specific clamping device is disclosed, the clamping device 4 comprises two clamping heads capable of being closed, and a clamping groove is arranged along the axial direction of the clamping head; an inner core is arranged in the clamping head, the hardness of the clamping head is greater than the hardness of the inner core, and the clamping groove is located in the soft inner core.

[0058] Further, the material of the clamping head is a hard material, such as metal or hard plastic; the material of the soft inner core is an elastic material, such as rubber or silica gel. The inner wall of the clamping head is provided with a mounting groove matched with the soft inner core, and the soft inner core is fixedly mounted in the mounting groove. The cross-sectional shape of the clamping groove on each clamping head is semicircular, and when the two clamping heads are closed, a cylindrical clamping space is formed to clamp the fiber.

[0059] Further, convex and groove structures can be respectively arranged on the two clamping heads to realize quick opening and closing of the two clamping heads.

[0060] In this embodiment, the combination of the hard clamping head and the soft inner core allows the reaction force on the clamping head to be buffered by the soft inner core during the clamping process, reducing the wear of the clamping head and prolonging the service life of the clamping device. The soft inner core has a certain buffering effect, which can avoid direct contact between the clamping head and the clamped object, preventing damage to the fiber caused by extrusion. Since the soft inner core can better fit the surface of the clamped object, the clamping force is more evenly distributed, thereby improving the clamping precision.

[0061] In this embodiment, the clamping device 4 is plug-in connected in the mounting hole 221, specifically, the clamping device 4 formed by the closing of the two clamping heads is cylindrical plus conical, that is, the shape of the cross section of the clamping device 4 is the same as Figure 6 The mounting hole 221 shown has the same shape as shown, and the size of the outer diameter of the clamping device 4 is basically the same as the hole diameter of the mounting hole 221, so that the clamping device 4 can be conveniently inserted into the mounting hole 221.

[0062] In one embodiment, the mounting portion 22 is vertically arranged at the bottom surface of the connecting platform 21, and the mounting portion 22 and the connecting platform 21 are integrally formed.

[0063] The mounting portion 22 and the connecting platform 21 are integrally formed, which makes the overall structure of the clamp more stable. During the polishing of the fiber, the positional deviation of the fiber caused by unstable connection between the mounting portion and the connecting platform can be effectively avoided, ensuring the polishing precision and quality. The vertically arranged mounting portion 22 and the connecting platform 21 make the verticality adjustment of the mounting portion 22 more convenient, which only needs to adjust the level of the connecting platform 21 to realize the verticality adjustment of the mounting portion 22, and the operation is more convenient.

[0064] In one embodiment, the bottom surface of the support platform 11 is provided with a plurality of support feet 12, and the bottom end surface of the support feet 12 is planar. The number of support feet 12 can be set according to the shape of the support platform 11, for example, three support feet 12 are provided on the triangular support platform 11 shown in the present application, and one support foot 12 is provided at each corner of the quadrilateral support platform 11.

[0065] In the present application, the bottom end surface of the support feet 12 is planar, so that the clamp is placed more stably on the grinder.

[0066] In the present application, the support platform 11 is provided with a through hole 111 that penetrates the support platform 11; after the connecting platform 21 is connected to the support platform 11, the bottom end of the mounting portion 22 is located in the through hole 111.

[0067] In the present application, the bottom end of the mounting portion 22 is located in the through hole 111, which can ensure that the optical fiber extending from the bottom end of the mounting portion 22 is polished.

[0068] Further, the through hole 111 is located at the center of the support platform 11, which ensures that the overall structure of the clamp is stable.

[0069] In use, the support platform 11 is placed on the platform of the four-corner pressurized grinder, so that the through hole 111 of the support platform 11 is aligned with the grinding pad of the grinder. The clamping device 4 is opened, and the optical fiber is placed on the clamping groove at the center of the clamping device 4, and the front end of the optical fiber is exposed from the clamping device 4 by a distance that can ensure that about 1mm is exposed after the polishing head is installed. Then, the clamping device 4 is closed to clamp the optical fiber. The optical fiber exposed from the clamping device 4 is inserted into the optical fiber hole 223 of the polishing head, and then the bottom of the polishing head is exposed by about 1mm, and then the holder and the polishing head are connected together and fastened, and the axis of the clamping device 4 and the polishing head is ensured to be concentric. The polishing head is vertically placed above the center hole of the leveling base, and the leveling bolts around are adjusted so that the air bubble of the horizontal bubble on the connecting platform is at the center position. In this way, it can be ensured that the optical fiber in the polishing head is perpendicular to the polishing plane, and the clamping device 4 can fix the up-down position of the optical fiber.

[0070] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fiber optic polishing fixture, characterized in that, include: The base part (1) includes a support platform (11); The polishing head (2) includes a connecting platform (21) and a mounting part (22). The mounting part (22) is connected to the bottom surface of the connecting platform (21). The mounting part (22) is provided with a connecting mounting hole (221) and a fiber hole (223) along the axial direction. The connecting platform (21) is connected to the support platform (11) through a leveling mechanism (3). The clamping device (4) is plugged into and connected to the mounting hole (221). When the clamping device (4) is connected to the mounting hole (221), the image fiber clamped by the clamping device (4) can pass through the image fiber hole (223).

2. The fiber optic polishing fixture according to claim 1, characterized in that, The leveling mechanism (3) includes multiple leveling bolts; The connecting platform (21) is provided with multiple threaded holes (211), each leveling bolt is connected to a threaded hole (211), and the bottom surface of the leveling bolt abuts against the connecting platform (21).

3. The fiber optic polishing fixture according to claim 2, characterized in that, The top surface of the connecting platform (21) is provided with a groove (112); The bottom surfaces of the multiple leveling bolts are all located within the groove (112) and are evenly distributed within the groove (112).

4. The fiber optic polishing fixture according to claim 1, characterized in that, The fiber aperture (223) and the mounting hole (221) are connected by a tapered hole (222), the diameter of which gradually decreases from the mounting hole (221) to the fiber aperture (223); The mounting hole (221), tapered hole (222), and fiber optic hole (223) are coaxially arranged.

5. The fiber optic polishing fixture according to claim 1, characterized in that, The clamping device (4) includes two clamping heads that can engage, and a clamping groove is provided along the axial direction of the clamping heads; The clamping head has an inner core, the hardness of which is less than that of the clamping head, and the clamping groove is located in the inner core.

6. The fiber optic polishing fixture according to claim 1, characterized in that, The mounting part (22) is vertically connected to the bottom surface of the connecting platform (21), and the mounting part (22) and the connecting platform (21) are integrally formed.

7. The fiber optic polishing fixture according to claim 1, characterized in that, The support platform (11) is provided with a through hole (111) that penetrates the support platform (11). After the connecting platform (21) and the support platform (11) are connected, the bottom end of the mounting part (22) is located in the through hole (111).

8. The fiber optic polishing fixture according to claim 7, characterized in that, The through hole (111) is located at the center of the support platform (11).

9. The fiber optic polishing fixture according to any one of claims 1-8, characterized in that, The bottom surface of the support platform (11) is provided with multiple support feet (12), and the bottom end face of the support feet (12) is flat.

10. The fiber optic polishing fixture according to any one of claims 1-8, characterized in that, The top surface of the connecting platform (21) is provided with a placement groove (212), and a horizontal bubble (5) is detachably connected in the placement groove (212).

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