Optical fiber grinder

Abstract

The application relates to the field of optical fiber grinding equipment, in particular to an optical fiber grinding machine. The optical fiber grinding machine comprises a machine body, a holder and a control element, the machine body comprises a machine box, a grinding disc and a driving mechanism, the holder and the grinding disc are arranged above the machine box, the holder comprises a support frame and a clamp, the support frame is fixed relative to the machine box, the clamp is installed on the support frame, and the clamp is suitable for clamping an optical fiber; the grinding disc is installed between the top surface of the machine box and the clamp in the vertical direction, the driving mechanism is installed on the machine box and can drive the grinding disc to rotate so as to grind the optical fiber clamped by the clamp; the grinding disc and the clamp are both conductive parts, the grinding disc is electrically connected with the control element through a first wire, the clamp is electrically connected with the control element, the control element is signal-connected with the driving mechanism; when the bottom surface of the clamp contacts the grinding disc, the grinding disc, the clamp and the control element form a conduction loop, the control element collects the electric signal of the conduction loop and controls the driving mechanism to stop working.

Description

Technical Field

[0001] This invention relates to the field of optical fiber polishing equipment, and more particularly to an optical fiber polishing machine. Background Technology

[0002] As a key piece of equipment in optical fiber manufacturing, optical fiber communication and related laser processing, the optical fiber polishing machine mainly processes the end face of optical fiber through physical polishing. The polishing quality of the optical fiber end face directly affects important performance indicators such as optical transmission loss and connection loss of the optical fiber.

[0003] Existing fiber polishing machines typically rely on the operator's experience and visual inspection to determine whether the fiber has been polished to the designated position. This makes it difficult to accurately determine whether the polished end face of the fiber has reached the designated position, which can lead to insufficient or excessive polishing of the fiber. This affects the processing accuracy and subsequent use of the fiber, and increases the fiber scrap rate and production costs.

[0004] To address the aforementioned issues, some polishing machines employ cameras to capture the current polishing position of the optical fiber and send the captured information to corresponding software for analysis. The software then determines whether the optical fiber has reached the designated polishing position.

[0005] However, the aforementioned fiber polishing machine requires a camera in conjunction with software to determine the location for fiber polishing, and also requires an operator to monitor the software's operation, resulting in high labor and material costs. Summary of the Invention

[0006] The technical problem to be solved by this invention is: to address the issue that existing fiber optic polishing machines require cameras in conjunction with software to determine the fiber polishing position, resulting in high labor and material costs, and to provide a fiber optic polishing machine.

[0007] To address the aforementioned problems, this invention provides an optical fiber polishing machine, comprising a body, a clamp, and control elements. The body includes a chassis, a polishing disc, and a drive mechanism. The clamp and polishing disc are both disposed above the chassis. The clamp includes a support frame and a fixture. The support frame is fixed relative to the chassis, and the fixture is mounted on the support frame. The fixture is adapted to clamp optical fibers. The polishing disc is vertically mounted between the top surface of the chassis and the fixture. The drive mechanism is mounted on the chassis and is capable of driving the polishing disc to rotate, thereby polishing the optical fiber held by the fixture.

[0008] Both the grinding disc and the clamp are conductive components. The grinding disc is electrically connected to the control element via a first wire. The clamp is electrically connected to the control element. The control element is signal-connected to the drive mechanism.

[0009] When the bottom surface of the fixture contacts the grinding disc, the grinding disc, the fixture, and the control element form a conductive circuit. The control element collects the electrical signal of the conductive circuit and controls the drive mechanism to stop working.

[0010] Optionally, the support frame is a conductive component, the clamp is electrically connected to the support frame, the support frame is electrically connected to the control element through a second wire, and the support frame is insulated from the chassis;

[0011] When the bottom surface of the fixture contacts the grinding disc, the grinding disc, control element, support frame and fixture form the conductive circuit.

[0012] Optionally, the clamp includes a clamp body and a conductive head, the clamp body is insulated from the conductive head, the conductive head is mounted on the bottom of the clamp body, and the clamp body and the conductive head together clamp the optical fiber;

[0013] The support frame is electrically connected to the conductive head via a third wire, which is hidden inside the fixture body. When the bottom surface of the conductive head contacts the grinding disc, the conductive head and the grinding disc make contact and conduction. The grinding disc, control element, support frame and conductive head form the conduction circuit.

[0014] Optionally, the conductive head is detachably connected to the clamp body. The conductive head is provided with a limiting hole extending in the vertical direction. The limiting hole has an inlet at the top and an outlet at the bottom. The cross-sectional dimension of the inlet is larger than that of the outlet. The cross-sectional shape of the outlet is the same as that of the optical fiber. The limiting hole is used to limit the lateral displacement of the optical fiber.

[0015] Optionally, a plurality of mounting brackets are fixed on the top surface of the chassis. The mounting brackets are insulating components. The plurality of mounting brackets are spaced apart on the outer periphery of the grinding disc. The plurality of mounting brackets together support the support frame. The mounting brackets are provided with through holes communicating with the chassis.

[0016] The control element is disposed inside the chassis. One end of the second wire is electrically connected to the control element, and the other end of the second wire passes through the chassis and into the through hole. The other end of the second wire is electrically connected to the support frame.

[0017] Optionally, the mounting bracket includes a mounting platform and a mounting post. The mounting platform is fixed to the top surface of the chassis. The support frame can be placed on the mounting platform of multiple mounting brackets. The bottom end of the mounting post is inserted into the chassis. The mounting post is provided with the through hole.

[0018] A voltage-conducting rod is installed on the fixed column. The voltage-conducting rod can rotate horizontally. The other end of the second wire is connected to the voltage-conducting rod. One end of the voltage-conducting rod can press against the support frame.

[0019] Optionally, the support frame is provided with at least one stop groove, the stop groove having an upward opening, the stop groove corresponding to the voltage conductor, and one end of the voltage conductor being able to be engaged in the stop groove.

[0020] Optionally, the fiber polishing machine further includes a spraying device capable of spraying water mist onto the polishing disc to moisten its surface.

[0021] Optionally, the spraying device includes a nozzle, a water tank, and a spray pipe. One end of the spray pipe is connected to the water tank, and the other end of the spray pipe extends to the top of the housing and is connected to the nozzle. The nozzle has a nozzle extending in the direction of grinding the optical fiber on the grinding disc, and the nozzle is capable of spraying water mist at regular intervals.

[0022] Optionally, the driving mechanism includes a rotary motor, the shaft of which extends vertically, and the bottom of the grinding disc is connected to the shaft of the rotary motor; or,

[0023] The control element is a microcontroller or a PLC. The power pin of the microcontroller is electrically connected to an external power source, and the PLC has its own power module.

[0024] The fiber polishing machine provided in this embodiment of the invention has the following characteristics: when polishing is not completed, the bottom end face of the fiber held by the clamp is lower than the bottom surface of the fixture. Since the quartz fiber is not conductive, there is no connection between the polishing disc and the fixture, and the circuit formed by the control element-polishing disc-fixture-control element is broken.

[0025] When the end face of the optical fiber is ground until it is flush with the bottom surface of the fixture, the optical fiber is in the grinding position. The bottom surface of the fixture contacts the grinding disc, and the fixture and grinding disc are electrically connected. The circuit formed by the control element, grinding disc, fixture, and control element is completed. The control element receives the electrical signal, analyzes it to determine that the optical fiber grinding is complete, and controls the drive mechanism to stop working. This allows the optical fiber polishing machine to automatically stop when the optical fiber is in the grinding position, achieving precise detection of the optical fiber grinding position and improving the quality and consistency of the finished optical fiber. Compared to existing technologies that use a camera and analysis software to determine the current grinding position of the optical fiber polishing machine, this optical fiber polishing machine uses the on / off state of the circuit to determine whether the grinding position is complete. The solution is simple and can achieve automatic stopping of the polishing machine when the grinding is complete, without manual operation, saving manpower and resources. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an optical fiber polishing machine provided in one embodiment of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of the conduction circuit;

[0029] Figure 3 for Figure 1 Assembly diagram of the main body and spraying device;

[0030] Figure 4 for Figure 1 A schematic diagram showing the relative positions of the nozzle and the grinding disc.

[0031] Figure 5 for Figure 1 A schematic diagram of the structure of the clamp in the middle;

[0032] Figure 6 for Figure 5 A top view of the fixture and linear guide rail in the image;

[0033] Figure 7 yes Figure 6 Exploded view of the fixture in the image.

[0034] The reference numerals in the accompanying drawings are as follows:

[0035] 1. Machine body; 11. Chassis; 111. Mounting slot; 12. Grinding disc; 13. Fixing frame; 131. Fixing platform; 132. Fixing column; 14. Conductive rod;

[0036] 2. Clamp; 21. Support frame; 211. Stop groove; 22. Fixture; 221. Fixture body; 222. Conductive head; 223. Fixing component; 2231. Base; 2232. First limiting block; 2233. Second limiting block; 224. Movable component; 2241. Abutment part; 2242. Operating part; 225. Elastic component; 226. Movable groove; 23. Linear guide rail; 3. Spraying device; 31. Water tank; 32. Spray head; 321. Nozzle; 33. Spray pipeline; 4. Control element. Detailed Implementation

[0037] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0038] One embodiment of the present invention provides an optical fiber polishing machine, such as... Figure 1 and Figure 3 As shown, it includes a body 1 and a gripper 2. The body 1 includes a housing 11, a control element 4, a grinding disc 12 and a drive mechanism. The gripper 2 and the grinding disc 12 are both located above the housing 11.

[0039] The clamp 2 includes a support frame 21 and a clamp 22. The support frame 21 is fixed relative to the chassis 11, and the clamp 22 is mounted on the support frame 21. The clamp 22 is suitable for clamping optical fibers. The polishing disc 12 is mounted vertically between the top surface of the chassis 11 and the clamp 22. The drive mechanism is mounted on the chassis 11 and can drive the polishing disc 12 to rotate, so as to polish the optical fiber held by the clamp 22.

[0040] like Figure 2 As shown, both the grinding disc 12 and the clamp 22 are conductive components. The grinding disc 12 is electrically connected to the control element 4 through the first wire, the clamp 22 is electrically connected to the control element 4, and the control element 4 is signal connected to the drive mechanism.

[0041] When the bottom surface of the fixture 22 contacts the grinding disc 12, the grinding disc 12, the fixture 22 and the control element 4 form a conductive circuit, and the control element 4 obtains the signal and controls the drive mechanism to stop working.

[0042] Specifically, when the polishing machine polishes the optical fiber held by the fixture 22, the polishing end of the optical fiber passes downward through the fixture 22 and contacts the surface of the polishing disc 12. The end face of the polishing end of the optical fiber is lower than the bottom surface of the fixture 22. Since the optical fiber made of quartz material is not conductive, there is no connection between the polishing disc 12 and the fixture 22, and the circuit formed by the control element 4-polishing disc 12-fixture 22-control element 4 is broken.

[0043] like Figure 2As shown, when the end face of the optical fiber is ground until it is flush with the bottom surface of the clamp 22, the optical fiber is in the grinding position. The bottom surface of the clamp 22 contacts the grinding disk 12, and the clamp 22 and the grinding disk 12 are electrically connected. The circuit formed by the control element 4, the grinding disk 12, the clamp 22, and the control element 4 is completed. The control element 4 receives the electrical signal, analyzes it to determine that the optical fiber is in the grinding position, and controls the drive mechanism to stop working. This allows the optical fiber polishing machine to stop automatically when the optical fiber is in the grinding position, achieving accurate detection of the optical fiber polishing position and improving the quality and consistency of the finished optical fiber. Compared with the existing technology that uses a camera and analysis software to determine the current grinding position of the optical fiber polishing machine, this optical fiber polishing machine uses the on / off state of the circuit to determine whether the grinding position is in place. The solution is simple, and the polishing machine can stop automatically when the grinding is in place without manual operation, saving manpower and resources.

[0044] It is understandable that during the optical fiber polishing process, in order to ensure the amount of polishing of the optical fiber, the polishing disc 12 and the optical fiber have relative movement in the height direction, so that while the polishing disc 12 removes the polishing end face material of the optical fiber, the polishing disc 12 can maintain contact with the polishing end face of the optical fiber.

[0045] The part of the optical fiber that extends out from the bottom surface of the clamp 22 is the material part of the optical fiber that needs to be polished. Therefore, when the polishing end face of the optical fiber is flush with the bottom surface of the clamp 22, it means that the optical fiber polishing is in place.

[0046] It should be noted that the fiber polishing machine can also be equipped with an alarm device. When the fiber polishing is in place and the control element 4 stops the drive mechanism, the alarm device will sound an alarm to remind the staff that the fiber polishing is in place.

[0047] In one embodiment, the drive mechanism includes a rotary motor with its shaft extending vertically, and the bottom of the grinding disc 12 is connected to the rotary motor's shaft. Alternatively, the rotary motor's shaft can be connected to the input shaft of a reducer, and the grinding disc 12 can be connected to the reducer's output shaft.

[0048] Control element 4 is a microcontroller or PLC. The power supply pin of the microcontroller is electrically connected to an external power supply, while the PLC has its own power supply module. Control element 4 is a microcontroller, which is essentially a "programmable micro control unit" that controls external devices or performs specific functions by executing pre-programmed programs. It is equivalent to integrating the core components of a computer into a single chip, which can work independently without the need for additional complex circuitry.

[0049] The microcontroller's power pin is electrically connected to an external power supply, which provides DC power to the microcontroller, enabling it to operate normally. When the fiber optic polishing is in place, the bottom surface of the fixture 22 contacts the polishing disc 12, and the fixture 22 and the polishing disc 12 are electrically connected. The circuit formed by the control element 4, the polishing disc 12, the fixture 22, and the control element 4 is closed. After the microcontroller collects the electrical signal in the closed circuit, it controls the drive mechanism to stop working.

[0050] In one embodiment, such as Figure 1 and Figure 2 As shown, the support frame 21 is a conductive component, the clamp 22 is electrically connected to the support frame 21, the support frame 21 is electrically connected to the control element 4 through the second wire, and the support frame 21 is insulated from the chassis 11.

[0051] When the bottom surface of the fixture 22 contacts the grinding disc 12, the grinding disc 12, the control element 4, the support frame 21 and the fixture 22 form a conductive circuit.

[0052] The clamp 22 is mounted on the support frame 21 and located directly above the grinding disc 12. If the clamp 22 is directly electrically connected to the control element 4 via a wire, the wire would be positioned above the chassis 11. Operators would then frequently need to move the optical fiber to or from the clamp 22 above the chassis 11, posing a safety and damage risk to the wire. Therefore, in this embodiment, the clamp 22 is electrically connected to the support frame 21, and the position of the second wire is adjusted to the side of the chassis 11 via the support frame 21, reducing the likelihood of operators touching the wire.

[0053] Understandably, the outer surface of the support frame 21 is insulated to ensure safety.

[0054] In one embodiment, such as Figure 4 and Figure 5 As shown, the clamp 22 includes a clamp body 221 and a conductive head 222. The clamp body 221 is insulated from the conductive head 222. The conductive head 222 is installed at the bottom of the clamp body 221. The clamp body 221 and the conductive head 222 are used to clamp optical fibers.

[0055] The support frame 21 is electrically connected to the conductive head 222 via a third wire. The third wire is hidden inside the fixture body 221. When the bottom surface of the conductive head 222 contacts the grinding disc 12, the conductive head 222 and the grinding disc 12 make contact and conduction. The grinding disc 12, the control element 4, the support frame 21 and the conductive head 222 form a conductive circuit.

[0056] The fixture body 221 and the conductive head 222 are processed separately. The conductive head 222 is processed using conductive material, while the fixture body 221 does not need to be processed using conductive material, thereby reducing the use of conductive material and lowering the cost of the fixture 22.

[0057] In one embodiment, such as Figures 5 to 7 As shown, the conductive head 222 is detachably connected to the fixture body 221. The conductive head 222 is provided with a limiting hole extending in the vertical direction. The limiting hole has an inlet at the top and an outlet at the bottom. The cross-sectional size of the inlet is larger than that of the outlet. The cross-sectional shape of the outlet is the same as that of the optical fiber. The limiting hole is used to limit the lateral displacement of the optical fiber, avoid the lateral shaking of the polishing end of the optical fiber during polishing, and improve the processing quality of the optical fiber.

[0058] Furthermore, since the conductive head 222 is detachably connected to the clamp body 221, the appropriate conductive head 222 can be selected according to different specifications of optical fibers, so that the clamp 22 can hold optical fibers of different sizes, thereby improving the versatility of the optical fiber polishing machine.

[0059] In one embodiment, such as Figures 1 to 3 As shown, multiple mounting brackets 13 are fixed on the top surface of the chassis 11. The mounting brackets 13 are insulating components. The multiple mounting brackets 13 are spaced apart on the outer periphery of the grinding disc 12. The multiple mounting brackets 13 together support the support frame 21. The mounting brackets 13 are provided with through holes that communicate with the chassis 11.

[0060] The control element 4 is installed inside the chassis 11. One end of the second wire is electrically connected to the control element 4, and the other end of the second wire passes through the chassis 11 and enters the through hole. The other end of the second wire is electrically connected to the support frame 21, so as to hide the second wire inside the chassis 11 and the through hole of the fixing frame 13, thereby further improving the cleanliness and safety of the fiber polishing machine.

[0061] In one embodiment, such as Figure 1 and Figure 3 As shown, the mounting bracket 13 includes a mounting platform 131 and a mounting post 132. The mounting platform 131 is fixed to the top surface of the chassis 11. The support frame 21 can be placed on the mounting platform 131 of multiple mounting brackets 13. The bottom end of the mounting post 132 is inserted into the chassis 11, and the mounting post 132 is provided with a through hole.

[0062] A voltage-conducting rod 14 is installed on the fixing column 132 of the fixing frame 13. The voltage-conducting rod 14 can rotate around the horizontal axis. The other end of the second wire is connected to the voltage-conducting rod 14. One end of the voltage-conducting rod 14 can press against the support frame 21.

[0063] Before placing the support frame 21 on the fixed frame 13, the conductive rod 14 is positioned radially outside the grinding disc 12. After the support frame 21 is placed on the fixed frame 13, the conductive rod 14 is rotated so that one end of the conductive rod 14 rotates above the support frame 21, pressing one end of the conductive rod 14 onto the support frame 21 to achieve contact electrical connection between the conductive rod 14 and the support frame 21. When it is necessary to remove the support frame 21, the conductive rod 14 is rotated to the radial outside of the grinding disc 12 to avoid the support frame 21. Compared to the design where the second wire is directly connected to the support frame 21 and the connection between the support frame 21 and the second wire needs to be disassembled, this design uses the rotation of the conductive rod 14 to switch between the disconnected and connected states of the conductive rod 14 and the support frame 21, making it easier to remove the support frame 21.

[0064] In one embodiment, such as Figure 1 and Figure 3 As shown, the bottom end of the fixing column 132 is rotatably mounted on the top of the chassis 11 around the vertical axis. The fixing column 132 is provided with a through hole that runs radially through it. The voltage conductor 14 passes through the through hole, and the other end of the second conductor is directly welded to the voltage conductor 14 or wrapped around the outer wall of the voltage conductor 14.

[0065] In one embodiment, the support frame 21 is provided with at least one stop groove 211, the stop groove 211 has an upward opening, the stop groove 211 corresponds to the voltage conduction rod 14, and one end of the voltage conduction rod 14 can be locked in the stop groove 211 to limit the circumferential shaking of the support frame 21 during the grinding process, thereby improving the stability of the optical fiber held by the holder 2.

[0066] In one embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the fiber polishing machine also includes a spraying device 3, which can spray water mist onto the polishing disc 12 to moisten the surface of the polishing disc 12 and improve the conductivity of the surface of the polishing disc 12. At the same time, the water mist sprayed by the spraying device 3 has a certain pressure, which can clean the debris on the surface of the polishing disc 12.

[0067] In one embodiment, such as Figure 1 , Figure 3 and Figure 4As shown, the spraying device 3 includes a nozzle 32, a water tank 31, and a spray pipe 33. One end of the spray pipe 33 is connected to the water tank 31, and the other end extends to the top of the housing 11 and is connected to the nozzle 32. The nozzle 32 has a nozzle 321 extending towards the grinding optical fiber on the grinding disc 12. The nozzle 321 can spray water mist at regular intervals, so that the spraying device 3 sprays water mist at the grinding optical fiber position on the grinding disc 12, improving the accuracy of spraying water mist onto the grinding position. Moreover, the timed spraying of water mist by the spraying device 3 onto the grinding disc 12 can keep the surface of the grinding disc 12 constantly moist, so that the grinding disc 12 can maintain good conductivity.

[0068] In one embodiment, such as Figure 1 and Figure 3 As shown, the chassis 11 is square, and two mounting brackets 13 are provided, distributed along one diagonal of the chassis 11. Two opposing stop grooves 211 are provided on the support frame 21, each corresponding to a conductive rod 14 on one of the mounting brackets 13. Two columns are provided on the top of the chassis 11, distributed along another diagonal, and two spraying devices 3 are provided, with the nozzles 32 of each spraying device 3 fixed to the two columns respectively.

[0069] In one embodiment, a mounting groove 111 is provided on the side wall of the chassis 11 in the width direction. The mounting groove 111 has an opening facing the side of the chassis 11, and the water tank 31 is fixed in the mounting groove 111.

[0070] In one embodiment, such as Figure 5 , Figure 6 and Figure 7 As shown, the fixture body 221 includes an elastic element 225, a fixing element 223, and a movable element 224. A linear guide rail 23 extends vertically on the support frame 21, and the fixing element 223 is slidably mounted on the linear guide rail 23 in the vertical direction. The fixing element 223 is provided with a movable groove 226 extending along the height direction of the chassis 11, and the optical fiber passes through the movable groove 226. The linear guide rail 23 can be a commercially available product or can be formed by machining on the support frame 21. Figure 4 The linear guide 23 shown is a commercially available product, which has its own slider and the clamp is fixed to the slider.

[0071] The movable member 224 is movably installed in the movable slot 226 along the first direction, and the elastic member 225 extends along the first direction, abutting between the movable member 224 and the fixed member 223. The movable member 224 can press the optical fiber under the elastic force of the elastic member 225; wherein, the first direction is parallel to the surface of the polishing disc 12. Figure 5 D1 in the diagram represents the first direction.

[0072] The difference between the weight of the clamp 22 and the friction between the fixing member 223 and the linear guide rail 23 is A, where A is 3N to 10N, so that the polishing end face of the optical fiber held by the clamp 22 can maintain contact with the polishing disc 12 of the optical fiber polishing machine.

[0073] Before starting the fiber polishing machine, the operator moves the movable part 224 in the first direction to overcome the elastic force of the elastic part 225, inserting the fiber into the movable slot 226. The polishing end of the fiber extends from the bottom surface of the clamp 22. The movable part 224 is then released, and the elastic part 225 returns to its original deformation, causing the movable part 224 to press the fiber. Since the fixed part 223 is slidably mounted on the linear guide rail 23 on the support frame 21 in the vertical direction, the difference between the weight of the clamp 22 and the friction between the clamp 22 and the linear guide rail 23 is A, where A is 3N to 10N. A is the resultant force of the clamp 22 in the vertical direction, and the direction of the resultant force A is downward. Therefore, the clamp 22 holding the fiber can slide freely downward under the action of its resultant force, so that the polishing end of the fiber is pressed on the polishing disc 12, and the rotating polishing disc 12 can polish the polishing end of the fiber.

[0074] Moreover, since the clamp 22, which is slidably mounted on the linear guide rail 23, is in a free state in the vertical direction, during the grinding process, the clamp 22 can automatically move downward under the action of the resultant force so that the grinding end of the optical fiber is kept in contact with the grinding disk 12, without the need to use a drive mechanism to drive one of the grinding disk 12 or the clamp 22 to move relative to each other in the vertical direction.

[0075] Throughout the grinding process, the direction and value of the resultant force A in the vertical direction of the fixture 22 remain unchanged, and the pressure between the grinding end of the optical fiber and the grinding disk 12 remains unchanged. This allows the grinding disk 12 to grind the optical fiber under constant pressure, thus keeping the grinding force on the end face of the optical fiber constant. The grinding disk 12 can uniformly remove the material from the grinding end during the grinding process, forming a flat end face, improving the grinding quality of the optical fiber, and improving the consistency of the finished optical fiber.

[0076] In one embodiment, such as Figure 5 As shown, there are two clamps 22. One clamp 22 is located on one side of the support frame 21 along the first direction, and the other clamp 22 is symmetrically located on the other side of the support frame 21 along the first direction.

[0077] Each clamp 22 forms a workstation, and two clamps 22 can simultaneously hold optical fibers for polishing, thereby improving the polishing efficiency of the optical fiber polishing machine. Moreover, the two clamps 22 are symmetrically arranged on both sides of the support frame 21 along the first direction, and the optical fibers held by the two clamps 22 are in contact with the polishing disc 12, so that the support frame 21 is subjected to balanced forces, thereby making the clamps 22 mounted on the support frame 21 more stable, and further ensuring that the optical fiber is polished under constant pressure with the polishing disc 12 during the polishing process.

[0078] In one embodiment, such as Figure 5 , Figure 6 and Figure 7 As shown, the fixing member 223 includes a base 2231, a first limiting block 2232 and a second limiting block 2233. The first limiting block 2232 and the second limiting block 2233 are fixed to the base 2231 at intervals along the vertical direction. The movable groove 226 passes through the first limiting block 2232 and the second limiting block 2233.

[0079] The movable part 224 includes an abutment part 2241 and an operating part 2242. The abutment part 2241 is inserted into the movable groove 226 in a vertical direction. The middle part of the abutment part 2241 on the side facing away from the base 2231 is connected to the operating part 2242. The operating part 2242 is located in a vertical direction between the first limiting block 2232 and the second limiting block 2233. The operating part 2242 can apply external force to make the movable part 224 move in a first direction against the elastic member 225.

[0080] An elastic element 225 is provided between the first limiting block 2232 and the abutting part 2241, and an elastic element 225 is provided between the second limiting block 2233 and the abutting part 2241.

[0081] When assembling the fixture body 221, the first limiting block 2232 can be fixed to the lower end of the base 2231 first, and then the lower end of the abutment portion 2241 of the movable member 224 can be inserted into the first limiting block 2232. An elastic member 225 can be installed between the abutment portion 2241 and the first limiting block 2232. Then, the second limiting block 2233 can be fitted onto the upper end of the abutment portion 2241 and fixed to the base 2231. An elastic member 225 can be installed between the second limiting block 2233 and the abutment portion 2241. The first limiting block 2232 and the second limiting block 2233 can be fixed to the base 2231 by one of the mechanical connection methods such as welding, riveting, or screw connection.

[0082] In other embodiments, the clamp 22 may have a through hole extending in the vertical direction. After the optical fiber is inserted through the through hole, glue is filled into the through hole to fix the optical fiber on the clamp 22.

[0083] In other embodiments, the fixing post 132 can be fixed to the chassis 11, and the voltage conducting rod 14 can be rotatably mounted on the top of the fixing post 132 about a horizontal axis.

[0084] In other embodiments, the support frame 21 can be an insulating component, in which case the clamp 22 can be connected to the control element 4 via a wire.

[0085] In other embodiments, the clamp 22 can be a conductive component as a whole, and the clamp 22 is directly electrically connected to the support frame 21.

[0086] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. An optical fiber polishing machine, characterized in that, The device includes a body, a clamp, and control elements. The body includes a chassis, a polishing disc, and a drive mechanism. The clamp and polishing disc are both located above the chassis. The clamp includes a support frame and a fixture. The support frame is fixed relative to the chassis, and the fixture is mounted on the support frame. The fixture is suitable for clamping optical fibers. The polishing disc is vertically mounted between the top surface of the chassis and the fixture. The drive mechanism is mounted on the chassis and can drive the polishing disc to rotate to polish the optical fiber held by the fixture. Both the grinding disc and the clamp are conductive components. The grinding disc is electrically connected to the control element through a first wire, the clamp is electrically connected to the control element, and the control element is signal-connected to the drive mechanism. When the bottom surface of the fixture contacts the grinding disc, the grinding disc, the fixture, and the control element form a conductive circuit. The control element collects the electrical signal of the conductive circuit and controls the drive mechanism to stop working. The support frame is a conductive component, the clamp is electrically connected to the support frame, the support frame is electrically connected to the control element through a second wire, and the support frame is insulated from the chassis. When the bottom surface of the fixture contacts the grinding disc, the grinding disc, control element, support frame and fixture form the conductive circuit; Multiple mounting brackets are fixed on the top surface of the chassis. The mounting brackets are insulating components. The multiple mounting brackets are spaced apart on the outer periphery of the grinding disc. The multiple mounting brackets together support the support frame. The mounting brackets are provided with through holes that communicate with the chassis. The mounting frame includes a mounting platform and a mounting column. The mounting platform is fixed to the top surface of the chassis. The support frame can be placed on the mounting platform of multiple mounting frames. The bottom end of the mounting column is inserted into the chassis. The mounting column is provided with a through hole. A voltage-conducting rod is installed on the mounting column. The voltage-conducting rod can rotate horizontally. One end of the voltage-conducting rod can press on the support frame. The control element is disposed inside the chassis. One end of the second wire is electrically connected to the control element, and the other end of the second wire passes through the chassis and into the through hole. The other end of the second wire is connected to the voltage conductor.

2. The optical fiber polishing machine according to claim 1, characterized in that, The clamp includes a clamp body and a conductive head. The clamp body is insulated from the conductive head. The conductive head is installed at the bottom of the clamp body. The clamp body and the conductive head together clamp the optical fiber. The support frame is electrically connected to the conductive head via a third wire, which is hidden inside the fixture body. When the bottom surface of the conductive head contacts the grinding disc, the conductive head and the grinding disc are in contact and connected. The grinding disc, control element, support frame and conductive head form the conductive circuit.

3. The optical fiber polishing machine according to claim 2, characterized in that, The conductive head is detachably connected to the clamp body. The conductive head is provided with a limiting hole extending in the vertical direction. The limiting hole has an inlet at the top and an outlet at the bottom. The cross-sectional dimension of the inlet is larger than that of the outlet. The cross-sectional shape of the outlet is the same as that of the optical fiber. The limiting hole is used to limit the lateral displacement of the optical fiber.

4. The optical fiber polishing machine according to claim 1, characterized in that, The support frame is provided with at least one stop groove, the stop groove has an upward opening, the stop groove corresponds to the voltage conducting rod, and one end of the voltage conducting rod can be locked in the stop groove.

5. The optical fiber polishing machine according to claim 1, characterized in that, The fiber polishing machine also includes a spraying device that can spray water mist onto the polishing disc to moisten its surface.

6. The optical fiber polishing machine according to claim 5, characterized in that, The spraying device includes a nozzle, a water tank, and a spray pipe. One end of the spray pipe is connected to the water tank, and the other end of the spray pipe extends to the top of the chassis and is connected to the nozzle. The nozzle has a nozzle extending in the direction of grinding the optical fiber on the grinding disc, and the nozzle is capable of spraying water mist at regular intervals.

7. The optical fiber polishing machine according to any one of claims 1 to 6, characterized in that, The drive mechanism includes a rotary motor, the shaft of which extends vertically, and the bottom of the grinding disc is connected to the shaft of the rotary motor; or, The control element is a microcontroller or a PLC. The power pin of the microcontroller is electrically connected to an external power source, and the PLC has its own power module.

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