Optical fiber polishing machine

Abstract

The present invention relates to an optical fiber grinder, which comprises a frame, an optical fiber clamp, and a grinding assembly, wherein the grinding assembly comprises a grinding disc; the optical fiber grinder also comprises a lifting drive mechanism for driving the optical fiber clamp to rise and fall; the optical fiber grinder also comprises a lifting frame guided and assembled on the frame along the up-down direction, the lifting drive mechanism is transmission-connected to the lifting frame, and the optical fiber clamp is arranged on the top of the lifting frame; the lifting frame comprises a pillar, wherein two pillars are arranged at intervals in the horizontal direction, and both pillars are guided and assembled on the frame along the up-down direction; a bottom beam, connecting the bottoms of the two pillars; the optical fiber clamp is a long strip structure extending along the direction in which the two pillars are arranged at intervals; the optical fiber clamp, the bottom beam and the two pillars form a closed frame; or the lifting frame also comprises a top beam, which is a long strip structure extending along the direction in which the two pillars are arranged at intervals, and the optical fiber clamp is arranged on the top beam, and the top beam, the bottom beam and the two pillars form a closed frame.

Description

Technical Field

[0001] The invention relates to an optical fiber polishing machine. Background Art

[0002] The optical fiber grinder (optical fiber termination machine) is a device for grinding the end face of the optical fiber. As shown in the Chinese invention patent application with application publication number CN110116351A, the existing optical fiber grinder includes a frame, an optical fiber clamp, a grinding assembly and a lifting drive mechanism. One of the optical fiber clamp and the grinding assembly is a fixed component fixedly mounted on the frame, and the other is a movable component guided and assembled on the frame along the up and down direction. The lifting drive mechanism can drive the movable component to move up and down. The optical fiber clamp includes a square plate, and a fiber adapter is fixed at the center of the square plate. The fiber adapter is used to fix the optical fiber connector. The grinding assembly includes a grinding disc, and the grinding disc is provided with at least two grinding stations arranged in sequence along the circumferential direction. Each grinding station is provided with a grinding sheet. The grinding assembly also includes a grinding motor and a rotation motor that drive the grinding disc to rotate. The grinding motor and the rotation motor work together to make the trajectory of the optical fiber end of the optical fiber connector on the grinding sheet in an "8" shape. When in use, the grinding sheet is ground when it contacts the optical fiber end in the optical fiber connector. When separated, the rotation motor drives the grinding disc to rotate so that the required grinding sheet corresponds to the optical fiber end. The lifting drive mechanism drives the movable part to move so that the polishing sheet is separated from and in contact with the optical fiber end.

[0003] In the prior art, the lifting drive mechanism drives the movable parts to move up and down to achieve the contact and separation between the grinding disc and the optical fiber end, and to perform the position change during the separation. However, both the grinding assembly and the optical fiber clamp are heavy, and the load on the lifting drive mechanism is heavy, which places higher requirements on the driving ability of the lifting drive mechanism and increases the cost of the lifting drive mechanism. Moreover, in the prior art, the square plate in the optical fiber clamp completely covers the grinding disc from top to bottom, and the optical fiber clamp needs to be removed before the grinding disc can be replaced, which is inconvenient to operate. Summary of the invention

[0004] The object of the present invention is to provide an optical fiber polisher to solve the technical problems in the prior art that the lifting drive mechanism has a high cost and is inconvenient to replace the polishing sheet.

[0005] To achieve the above object, the technical solution of the optical fiber grinder of the present invention is: an optical fiber grinder, comprising:

[0006] frame;

[0007] Optical fiber clamp, used for clamping optical fiber connector;

[0008] A grinding assembly is installed on the frame and includes a grinding disc, and the optical fiber end in the optical fiber connector is ground by the rotation of the grinding disc;

[0009] A lifting drive mechanism, used to drive the optical fiber clamp to lift up and down;

[0010] The fiber polisher also includes:

[0011] A lifting frame, the lifting frame is guided and assembled on the frame along the up-down direction, the optical fiber clamp is arranged at the top of the lifting frame, and the lifting drive mechanism is connected to the lifting frame to drive the lifting frame to move up and down;

[0012] The lifting frame includes:

[0013] There are two pillars, which are arranged at intervals in the horizontal direction, and are guided and assembled on the frame in the up-down direction;

[0014] Bottom beam, connecting the bottom of the two pillars;

[0015] The optical fiber clamp is a long strip structure extending along the direction in which the two pillars are spaced apart;

[0016] The optical fiber clamp, the bottom beam and the two pillars form a closed frame;

[0017] Or the lifting frame further includes a top beam, which is a long strip structure extending along the direction in which the two pillars are arranged at intervals. The optical fiber clamp is arranged on the top beam, and the top beam, bottom beam and two pillars form a closed frame.

[0018] The beneficial effects of the present invention are as follows: the lifting frame itself is a closed frame, or the lifting frame and the optical fiber clamp together form a closed frame, and the lifting drive mechanism drives the closed frame to lift and move, thereby driving the optical fiber clamp to lift and move. Compared with the square flat plate in the prior art, the lateral dimensions occupied by the closed frame and the optical fiber clamp in the present invention are smaller, so that a part of the grinding disc is not covered by the optical fiber clamp, which is convenient for the replacement of the grinding disc. Moreover, the closed frame is lighter in weight, and the driving capacity requirements of the lifting drive mechanism are lower, and the cost of the lifting drive mechanism is lower. Moreover, the closed frame is lighter in weight, and the closed frame is more stable during lifting and lowering, and it is also easier to ensure accurate positioning, ensuring that the optical fiber end and the grinding disc can be accurately contacted, thereby improving the grinding quality.

[0019] Further, the grinding assembly includes a grinding disc, and the grinding disc is located below the optical fiber clamp;

[0020] During the rotation of the grinding disc, the closing frame is arranged eccentrically on one side of the grinding disc.

[0021] The effect of this solution is that the closed frame is eccentrically arranged on one side of the grinding disc, so that more parts of the grinding disc are not blocked by the optical fiber clamp, which facilitates the replacement of the grinding disc.

[0022] Furthermore, the frame includes a base and four support blocks arranged at four corners of the base, and the grinding assembly is fixedly mounted on the opposite inner sides of the four support blocks;

[0023] Taking the extension direction of the bottom beam as the left and right direction, two of the four support blocks correspond to the bottom beam on the left and right, the two ends of the bottom beam are penetrated by the two corresponding support blocks on the left and right, and the support blocks are provided with a movable space for the bottom beam to move up and down.

[0024] The effect of this solution is that the support blocks are arranged at the four corners of the base, and the enclosed space is larger, which is convenient for arranging the grinding components. The bottom beam runs through the support blocks on the left and right, making the bottom beam closer to the edge of the base, and then making the upper pillars and optical fiber clamps farther away from the axis of the grinding disc, further facilitating the replacement of the grinding disc, and also facilitating the arrangement of the lifting drive mechanism.

[0025] Furthermore, the frame includes a base and four support blocks arranged at four corners of the base, and the grinding assembly is fixedly mounted on the opposite inner sides of the four support blocks;

[0026] The extension direction of the bottom beam is the left-right direction, and the direction perpendicular to the left-right direction and the up-down direction is the front-back direction. Avoidance grooves are provided at both ends of the front-back direction of the bottom beam, and two of the four support blocks corresponding to the left and right sides of the bottom beam pass through the avoidance grooves up and down.

[0027] The effect of this solution is that the support blocks are arranged at the four corners of the base, and the enclosed space is larger, which is convenient for arranging the grinding components. By setting the avoidance groove, the bottom beam is closer to the edge of the base in the front-to-back direction, so that the upper pillars and optical fiber clamps can be further away from the axis of the grinding disc in the front-to-back direction, which further facilitates the replacement of the grinding disc and also facilitates the arrangement of the lifting drive mechanism.

[0028] Furthermore, a slider is provided on one of the support and the frame, and a linear guide rail extending in the up-down direction is provided on the other one, and the slider is guided and matched with the linear guide rail in the up-down direction.

[0029] The effect of this solution is that, through the cooperation of the slider and the linear guide rail, the movement of the pillar can be guided more accurately and with higher precision.

[0030] Furthermore, a weight-reducing structure is provided on the bottom beam and / or the pillar.

[0031] The effect of this solution is that by setting a weight-reducing structure, the lifting frame is made lightweight, which facilitates lifting and lowering drive.

[0032] Furthermore, the lifting drive mechanism is transmission-connected to the bottom beam.

[0033] The effect of this solution is that the lifting drive mechanism drives the entire closed frame to lift and move by driving the bottom beam, and the bottom beam is connected to the two pillars at the same time, so the closed frame is more stable during the lifting process.

[0034] Furthermore, the optical fiber clamp includes a strip plate body, which includes an intermediate plate in the middle and connecting plates at both ends. The intermediate plate and the connecting plates are detachably connected. A fiber optic adapter for clamping the optical fiber connector is provided on the intermediate plate, and the connecting plates are connected to corresponding pillars.

[0035] The effect of this solution is that the middle plate and the connecting plate are detachably connected, which makes it easy to replace the optical fiber adapter without removing the entire optical fiber clamp from the lifting frame. After the middle plate is removed, it is also easy to replace the grinding sheet on the grinding disk.

[0036] Furthermore, the optical fiber grinder includes two screws for fixing the strip-shaped plate body on the pillar, and the two screws are respectively arranged on two connecting plates;

[0037] The optical fiber grinder also includes an anti-rotation plate, which is arranged on each connecting plate. The anti-rotation plate is provided with an anti-rotation fitting portion, which is used to fit with the side of the pillar to prevent the connecting plate from rotating when the screw is screwed.

[0038] The effect of this solution is that, by providing an anti-rotation plate, the optical fiber clamp can be prevented from rotating along with the screws during installation, which makes installation more convenient, saves the use of screws, and saves costs.

[0039] Furthermore, the anti-rotation fitting portions of the two anti-rotation plates are arranged correspondingly along the spacing arrangement direction of the two connecting plates.

[0040] The effect of this solution is that the two anti-rotation plates are arranged correspondingly, which can not only prevent the optical fiber clamp from rotating during installation, but also prevent the optical fiber clamp from moving in the spacing arrangement direction of the two connecting plates during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a stereoscopic diagram of Embodiment 1 of the optical fiber polishing machine of the present invention;

[0042] Figure 2 A top view of the optical fiber polishing machine embodiment 1 of the present invention;

[0043] Figure 3 Schematic diagram of a closed frame formed by a lifting frame and an optical fiber clamp in Embodiment 1 of the optical fiber polishing machine of the present invention;

[0044] Explanation of the reference numerals: 100-frame; 11-base; 12-support block; 121-through channel; 200-grinding assembly; 21-fixed seat; 22-grinding disc; 23-grinding sheet; 300-optical fiber clamp; 31-middle plate; 32-connecting plate; 33-optical fiber adapter; 34-pressure plate; 35-tension screw; 36-anti-rotation plate; 400-lifting frame; 41-bottom beam; 411-lifting drive mechanism connecting part; 412-pillar connecting part; 413-avoidance groove; 42-left pillar; 43-right pillar; 44-linear guide rail; 45-slider; 500-lifting drive mechanism; 51-lifting drive motor; 52-cam; 53-connecting block. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0047] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0048] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0049] Specific embodiment 1 of the optical fiber polishing machine of the present invention:

[0050] like Figures 1 to 3As shown, the optical fiber grinder includes a frame 100, a grinding assembly 200, an optical fiber clamp 300, a lifting frame 400 and a lifting drive mechanism 500. The grinding assembly 200 is installed on the frame 100, the optical fiber clamp 300 is fixedly installed on the lifting frame 400, and the lifting frame 400 is guided and assembled on the frame 100 along the up and down directions. The lifting drive mechanism 500 drives the lifting frame 400 and the optical fiber clamp 300 fixedly connected to the lifting frame 400 to move up and down.

[0051] The structure of the rack 100 is as follows: Figure 1 As shown, the frame 100 includes a base 11, which is a square structure. Support blocks 12 are fixedly installed at the four corners of the base 11, and the support blocks 12 extend up and down. The structure of the grinding assembly 200 is consistent with that in the background technology, except that the grinding assembly guide in the background technology is assembled on the frame, while the grinding assembly 200 in this embodiment is fixedly assembled on the frame 100. The grinding assembly 200 includes a fixed seat 21, which is fixedly installed on four support blocks 12, specifically, fixedly installed on the opposite inner sides of the four support blocks 12. A grinding disc 22 and a grinding motor and a transfer motor that drive the grinding disc 22 to rotate are installed on the fixed seat 21. The grinding disc 22 is provided with five grinding stations arranged in sequence along the circumference of the grinding disc 22 (in other embodiments, the number of grinding stations can be increased or decreased according to actual conditions, but there are at least two), and each grinding station is installed with a grinding sheet 23, and each grinding sheet 23 can achieve different grinding precisions.

[0052] The structure of the optical fiber clamp 300 is as follows: Figure 1 As shown, the optical fiber clamp 300 includes a strip plate body, and the extension direction of the strip plate body is defined as the left-right direction, and the direction perpendicular to the left-right direction and the up-down direction is defined as the front-back direction. The strip plate body includes a middle plate body 31 in the middle and a connecting plate body 32 located on the left and right sides of the middle plate body 31, and the connecting plate body 32 is detachably connected to the middle plate body 31. Specifically, a support groove is provided at one end of the connecting plate body 32 close to the middle plate body 31, and the support groove is located at the intersection of the top surface of the connecting plate body 32 and the end surface in the left-right direction. Positioning protrusions are integrally formed at the left and right ends of the middle plate body 31, and the positioning protrusions can be placed in the support groove from top to bottom, and are adapted to stop with the support groove in the horizontal direction. The optical fiber clamp 300 further includes a pressing plate 34, which is used to press the positioning protrusion into the supporting groove. One end of the pressing plate 34 is connected to the connecting plate body 32, and the other end presses the positioning protrusion into the supporting groove. A pressing screw 35 is also screwed on the pressing plate 34, and the pressing screw 35 can fix the pressing plate 34 on the connecting plate body 32 and press the pressing plate 34 onto the positioning protrusion. Of course, in other embodiments, the detachable connection between the intermediate plate body and the connecting plate body can be connected by screws. Specifically, the intermediate plate body and the connecting plate body are stacked up and down, and the screws pass through the intermediate plate body and the connecting plate body to achieve connection.

[0053] like Figure 1 As shown, in the left-right direction, a screw through hole is provided at one end of the connecting plate body 32 facing away from the middle plate body 31, and the screw through hole is used for screws to pass through. A fiber optic adapter 33 is installed in the middle of the middle plate body 31, and the fiber optic adapter 33 can be adapted for insertion of a fiber optic connector. After the fiber optic connector is inserted, the lower end of the fiber end in the fiber optic connector is located below the middle plate body 31, and the fiber end can be ground by the rotation of the grinding disc 22.

[0054] The optical fiber clamp 300 is guided and assembled on the frame 100 through the lifting frame 400. The structure of the lifting frame 400 is as follows: Figure 1 and Figure 3 As shown, the lifting frame 400 includes a bottom beam 41, which extends in the left-right direction. A left support 42 and a right support 43 are respectively installed at both ends of the bottom beam 41, and the left support 42 and the right support 43 both extend in the up-down direction. The bottom beam 41, the left support 42, the right support 43 and the optical fiber clamp 300 together form a closed frame. The left support 42 and the right support 43 are guided and assembled on the support block 12. Specifically, a slider 45 is fixedly installed on the left and right sides of the support block 12, and a linear guide 44 is fixedly installed on the left and right sides of the left support 42 and the right support 43. The linear guide 44 is provided with a sliding groove extending up and down, and the slider 45 is slidably assembled in the sliding groove. The left support 42 and the right support 43 are guided and assembled on the support block 12 by the slider 45 and the linear guide 44. Of course, in other embodiments, the slider can be fixed on the left and right support, and the linear guide can be fixed on the support block. In other embodiments, linear bearings can also be used to guide the movement of the support.

[0055] The top end surfaces of the left support 42 and the right support 43 are respectively provided with threaded holes. When assembling, the screw holes on the two connecting plates 32 in the optical fiber clamp 300 correspond to the threaded holes up and down, and then they are fastened with screws. Figure 1 and Figure 3 As shown, an anti-rotation plate 36 is provided at the left and right ends of the connecting plate body 32, and the anti-rotation plate 36 extends in the up-down direction, and two anti-rotation plates 36 are disposed at the left and right ends of the optical fiber clamp 300, and the two anti-rotation plates 36 are arranged opposite to each other. The anti-rotation plate 36 plays a role in that when the connecting plate body 32 is installed, the connecting plate body 32 rotates with the screw. Specifically, the anti-rotation plate 36 can be attached to the side of the left support 42 and the right support 43. When the screw is screwed, the anti-rotation plate 36 and the side of the support block each other to prevent the connecting plate body 32 from rotating. During assembly, the two connecting plate bodies 32 can be installed first, and then the middle plate body 31 can be installed. Alternatively, the connecting plate body 32 and the middle plate body 31 can be assembled and then installed as a whole on the left support 42 and the right support 43.

[0056] The structure of the bottom beam 41 is as follows Figure 3 As shown, the bottom beam 41 includes a lifting drive mechanism connection part 411 in the middle and support connection parts 412 at both ends. The lifting drive mechanism connection part 411 is connected to the power output end of the lifting drive mechanism 500, and the support connection part 412 is connected to the left support 42 and the right support 43. An avoidance groove 413 is provided between the lifting drive mechanism connection part 411 and the support connection part 412, and the support block 12 passes through the avoidance groove 413 from top to bottom. The function of the avoidance groove 413 is to avoid the support block 12. Figure 1 As shown, a through channel 121 is opened at the bottom of the support block 12, and the through channel 121 runs through from left to right. Both ends of the bottom beam 41 pass through the through channel 121. The height of the through channel 121 in the up and down direction is greater than the height of the bottom beam 41, and a movable space is provided in the through channel 121 for the bottom beam 41 to move up and down.

[0057] After the avoidance groove 413 is provided, the bottom beam 41 is closer to the edge of the base 11 in the front-to-back direction. After the optical fiber clamp 300 is installed on the lifting frame 400, the optical fiber clamp 300 is further away from the axis of the grinding disc 22. The optical fiber clamp 300 has a smaller shielding area on the grinding disc 22, which facilitates the subsequent replacement of the grinding disc 23. Similarly, the bottom beam 41 is passed through the support block 12 in order to make the optical fiber clamp 300 further away from the axis of the grinding disc 22.

[0058] In this embodiment, the avoidance groove 413 plays the role of avoiding the support block 12 on the one hand, and can also play the role of reducing weight on the other hand. In order to further achieve weight reduction, weight reduction notches are also provided on the left support 42 and the right support 43, forming a structure that is narrow at the top and wide at the bottom. Among them, the part of the left support 42 and the right support 43 used to connect with the linear guide rail 44 is the guide connection part, and the part above the guide connection part connected with the optical fiber clamp 300 is the clamp connection part, and the width of the guide connection part is greater than the width of the clamp connection part.

[0059] The avoidance groove 413 and the weight-reducing notch both form a weight-reducing structure. In other embodiments, the weight-reducing structure may be a weight-reducing hole. In other embodiments, the weight-reducing structure may be provided on only one of the bottom beam and the pillar.

[0060] The structure of the lifting drive mechanism 500 is as follows: Figure 1As shown, the lifting drive mechanism 500 includes a lifting drive motor 51, which is fixedly mounted at the bottom of the base 11, and a cam 52 is fixedly mounted on the motor output shaft of the lifting drive motor 51, wherein the cam 52 is a circular wheel eccentrically arranged on the motor output shaft. The lifting drive mechanism 500 includes a connecting block 53, which passes through the base 11 from top to bottom, and the upper end of the connecting block 53 is connected to the lifting drive mechanism connecting part 411 on the bottom beam 41. A cam matching hole is provided below the connecting block 53, and the cam 52 is inserted into the cam matching hole, wherein the aperture of the cam matching hole in the up-and-down direction is the same as the outer diameter of the cam 52. When the lifting drive motor 51 stops at any position, the optical fiber clamp 300 can be locked up and down.

[0061] When the present invention is in use, when the grinding sheet 23 needs to be separated from the optical fiber end in the optical fiber adapter 33, the lifting drive motor 51 is started, driving the optical fiber clamp 300 and the optical fiber end in the optical fiber adapter 33 to move upward and separate from the grinding sheet 23. After reaching the position, the lifting drive motor 51 stops. Then, the indexing motor in the grinding assembly 200 drives the grinding disc 22 to rotate, so that the required grinding sheet 23 in the grinding disc 22 corresponds to the optical fiber end up and down. After the indexing is completed, the lifting drive motor 51 is started, driving the optical fiber clamp 300 and the optical fiber end in the optical fiber adapter 33 to move downward and contact with the grinding sheet 23 for subsequent grinding stations. After reaching the position, the lifting drive motor 51 stops, locking the optical fiber end in the contact position.

[0062] When replacing the polishing sheet 23, since the optical fiber clamp 300 is eccentrically arranged relative to the polishing disk 22, the polishing sheet 23 on the other side of the polishing disk 22 is not blocked by the optical fiber clamp 300 and can be directly replaced without removing the optical fiber clamp 300.

[0063] In this embodiment, during the installation of the optical fiber clamp 300, the optical fiber clamp 300 is prevented from rotating with the screw by the anti-rotation plate 36 and the left pillar 42 and the right pillar 43. Moreover, in this embodiment, the two anti-rotation plates 36 are arranged at both ends of the optical fiber clamp 300 along the left and right directions, and the two anti-rotation plates 36 are matched with the left and right stops of the corresponding pillars. When grinding, the two anti-rotation plates 36 are stopped with the left and right stops of the pillars, which can prevent the optical fiber clamp 300 from moving left and right. Of course, in other embodiments, the installation positions of the two anti-rotation plates can be changed according to actual conditions, for example, one of them is arranged at the left and right ends of the optical fiber clamp, and the other is arranged on the front and back sides.

[0064] In this embodiment, the side surface of the anti-rotation plate 36 that is in contact with the pillar forms an anti-rotation contact portion.

[0065] Specific embodiment 2 of the optical fiber polishing machine of the present invention:

[0066] In embodiment 1, the anti-rotation fitting parts of the two anti-rotation plates are the side surfaces of the anti-rotation plates. In this embodiment, the anti-rotation fitting parts of the anti-rotation plates are at least two protrusions arranged on the anti-rotation plates. The two protrusions fit the side surfaces of the pillars and can prevent the anti-rotation plates from rotating relative to the pillars. In other embodiments, the anti-rotation plates can be eliminated.

[0067] Specific embodiment 3 of the optical fiber polishing machine of the present invention:

[0068] In Example 1, the left support and the right support are both plates. In this embodiment, the left and right support may both be cylinders, or square strip structures with square cross-sections.

[0069] Specific embodiment 4 of the optical fiber polishing machine of the present invention:

[0070] In Example 1, the bottom beam passes through the support block on the left and right, and an avoidance groove is provided on the bottom beam for the support block to pass through up and down, all of which are to enable the bottom beam to be closer to the edge in the front-to-back direction. In this embodiment, the bottom beam can be arranged on one side of the front-to-back direction of the support block by reducing the lateral size of the support block. In this case, the bottom beam does not need to pass through the support block, nor does it need to provide an avoidance groove. In other embodiments, the bottom beam still passes through the support block, but no avoidance groove is provided; or the avoidance groove is still provided, but the bottom beam no longer passes through the support block.

[0071] Specific embodiment 5 of the optical fiber polishing machine of the present invention:

[0072] In Example 1, the closed frame is arranged on two support blocks at one end in the front-to-back direction, so that the closed frame is arranged at one end in the front-to-back direction of the rack to facilitate the replacement of the polishing sheet in the optical fiber clamp. In this embodiment, the structure of the rack can be changed, for example, the closed frame body extends around the entire rack, in which case the closed frame can be arranged in the middle position in the front-to-back direction.

[0073] Specific embodiment 6 of the optical fiber polishing machine of the present invention:

[0074] In Example 1, the lifting frame and the optical fiber clamp together form a closed frame. In this embodiment, the lifting frame not only includes the bottom beam, left support, and right support in Example 1, but also includes a top beam. The top beam is a strip structure. The bottom beam, left support, right support, and top beam together form a closed frame, and the optical fiber clamp is fixedly installed on the top beam.

[0075] Specific embodiment 7 of the optical fiber polishing machine of the present invention:

[0076] In Example 1, the lifting drive mechanism adopts a cam mechanism. In this embodiment, the lifting drive mechanism can be consistent with the prior art cited in the background technology, and adopts the cooperation of a motor, a pull rope and a reset spring to drive the optical fiber clamp to lift and move.

[0077] Specific embodiment 8 of the optical fiber polishing machine of the present invention:

[0078] In Example 1, the lifting drive mechanism is connected to the bottom beam to drive the lifting frame to move up and down. In this embodiment, the lifting drive mechanism can be connected to one of the pillars to drive the lifting frame.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. An optical fiber polishing machine, comprising: frame; Optical fiber clamp, used for clamping optical fiber connector; A grinding assembly is installed on the frame and includes a grinding disc, and the optical fiber end in the optical fiber connector is ground by the rotation of the grinding disc; A lifting drive mechanism, used to drive the optical fiber clamp to lift up and down; It is characterized in that: the optical fiber polishing machine also includes: A lifting frame, the lifting frame is guided and assembled on the frame along the up-down direction, the optical fiber clamp is arranged at the top of the lifting frame, and the lifting drive mechanism is connected to the lifting frame to drive the lifting frame to move up and down; The lifting frame includes: There are two pillars, which are arranged at intervals in the horizontal direction, and are guided and assembled on the frame in the up-down direction; The bottom beam connects the bottoms of the two pillars; the optical fiber clamp is a long strip structure extending along the spacing arrangement direction of the two pillars, and the optical fiber clamp includes a strip plate body, which includes a middle plate in the middle and connecting plates at both ends, and the middle plate and the connecting plates are detachably connected, and an optical fiber adapter for clamping an optical fiber connector is provided on the middle plate, and the connecting plates are connected to the corresponding pillars; The optical fiber clamp, the bottom beam and the two pillars form a closed frame; Or the lifting frame further includes a top beam, which is a long strip structure extending along the direction in which the two pillars are arranged at intervals. The optical fiber clamp is arranged on the top beam, and the top beam, bottom beam and two pillars form a closed frame.

2. The optical fiber polishing machine according to claim 1, characterized in that: The grinding assembly includes a grinding disc, which is located below the optical fiber clamp; During the rotation of the grinding disc, the closing frame is arranged eccentrically on one side of the grinding disc.

3. The optical fiber polishing machine according to claim 2, characterized in that: The frame includes a base and four support blocks arranged at four corners of the base, and the grinding assembly is fixedly mounted on the opposite inner sides of the four support blocks; Taking the extension direction of the bottom beam as the left and right direction, two of the four support blocks correspond to the bottom beam on the left and right, the two ends of the bottom beam are penetrated by the two corresponding support blocks on the left and right, and the support blocks are provided with a movable space for the bottom beam to move up and down.

4. The optical fiber polishing machine according to claim 2, characterized in that: The frame includes a base and four support blocks arranged at four corners of the base, and the grinding assembly is fixedly mounted on the opposite inner sides of the four support blocks; The extension direction of the bottom beam is the left-right direction, and the direction perpendicular to the left-right direction and the up-down direction is the front-back direction. Avoidance grooves are provided at both ends of the front-back direction of the bottom beam, and two of the four support blocks corresponding to the left and right sides of the bottom beam pass through the avoidance grooves up and down.

5. The optical fiber polishing machine according to any one of claims 1 to 4, characterized in that: A slider is provided on one of the support and the frame, and a linear guide rail extending in the up-down direction is provided on the other one, and the slider is guided and matched with the linear guide rail in the up-down direction.

6. The optical fiber polishing machine according to any one of claims 1 to 4, characterized in that: The bottom beam and / or the pillar are provided with a weight-reducing structure.

7. The optical fiber polishing machine according to any one of claims 1 to 4, characterized in that: The lifting drive mechanism is transmission-connected to the bottom beam.

8. The optical fiber polishing machine according to claim 1, characterized in that: The optical fiber polishing machine includes two screws for fixing the strip-shaped plate body on the pillar, and the two screws are respectively arranged on two connecting plates; The optical fiber grinder also includes an anti-rotation plate, which is arranged on each connecting plate. The anti-rotation plate is provided with an anti-rotation fitting portion, which is used to fit with the side of the pillar to prevent the connecting plate from rotating when the screw is screwed.

9. The optical fiber polishing machine according to claim 8, characterized in that: The anti-rotation affixed portions of the two anti-rotation plates are arranged correspondingly along the spacing arrangement direction of the two connecting plates.

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