Clamping device for optical fiber coupling

Abstract

The invention relates to the technical field of optical fiber coupling, in particular to a clamping device for optical fiber coupling, which comprises a bottom plate, four corners of the top of the bottom plate are fixedly connected with air spring vibration isolators, the tops of the air spring vibration isolators are fixedly connected with a base, the top of the base is fixedly connected with a placement table, and the placement table is fixedly connected with a clamping device. The device comprises a base, a placing table is arranged on the base, the top of the placing table is rotatably connected with a pressing block, the inner side of the base is rotatably connected with a positive and negative screw rod, and the inner wall of the base is slidably connected with a protection plate. When rotating, the positive and negative screw rod can drive the sliding seat to linearly slide on the top of the base along the guide rail, so that the position adjustment of the sliding seat in the horizontal direction is realized. By reasonably controlling the rotating direction and angle of the positive and negative screw rods, the sliding seat can be moved to a preset position, and preparation is made for follow-up accurate clamping.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber coupling, and in particular to a clamping device for optical fiber coupling. Background Art

[0002] With the rapid development of optical communication, laser processing, fiber optic sensing and many other fields, the importance of fiber optic coupling technology has become increasingly prominent. In the process of fiber optic coupling, the clamping device plays a key role, and its performance directly affects the accuracy, stability and final coupling effect of the fiber optic coupling.

[0003] In the prior art, the existing fiber coupling clamping devices have many deficiencies. On the one hand, in actual application scenarios, the working environment of the clamping device is often complex, and there are various vibration sources around, such as the operation of large mechanical equipment, ground vibrations generated by people walking, etc. These external vibrations are easily transmitted to the clamping device, thereby affecting the accuracy of fiber coupling. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention adopts a technical solution to solve the technical problems thereof: a clamping device for optical fiber coupling, comprising: a bottom plate, air spring isolators are fixedly connected at four corners of the top of the bottom plate, the top of the air spring isolator is fixedly connected to a base, the top of the base is fixedly connected to a placing table, the top of the placing table is rotatably connected to a pressure block, the inner side of the base is rotatably connected to a forward and reverse screw rod, the inner wall of the base is slidably connected to a protective plate, the top of the protective plate is fixedly connected to a dial plate; a locking device, the bottom of the locking device is fixedly connected to the top of the base, the outer side of the locking device is fixedly connected to the outer side of the forward and reverse screw rod, the locking device is used to limit the rotation of the forward and reverse screw rod, the protective plate is located at the top of the forward and reverse screw rod, and can prevent foreign matter from falling into the forward and reverse screw rod and related transmission structure, so as to avoid interference with the normal rotation of the screw rod and threaded transmission; Positioning device, the positioning device is located on both sides of the placement table, and its main function is to realize accurate positioning and clamping of the optical fiber and related optical components. The bottom of the positioning device is fixedly connected to the top of the base through a guide rail. The positioning device includes a sliding seat, the inner side of the sliding seat is slidably connected with a magnetic suction plate, the outer side of the magnetic suction plate is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with a limited block, the two sides of the top of the connecting plate are fixedly connected with compression springs, and the top of the sliding seat is slidably connected with a clamping assembly. The positive and negative screw rods are the key components for driving the sliding seat to move, and the position adjustment of the positioning device is realized during the rotation process, and the protective plate plays a role of protection and auxiliary stability; The clamping assembly includes a fixed block, the top of which is rotatably connected to a pressure plate, the bottom of which is fixedly connected to a metal plate, and the inner side of the fixed block is slidably connected to a top block. When the optical fiber is placed in a suitable position, the pressure plate is rotated around a rotation point by using a magnet provided on the pressure plate to cooperate with a magnet at a corresponding position on the fixed block, thereby clamping the optical fiber.

[0005] Preferably, the positioning device is located on both sides of the placing table, and the protective plate is located on the top of the positive and negative screw rods. The outer walls of the positive and negative screw rods are connected to the inner threads of the positioning device. When the limit block moves upward, the limit block pushes the top block upward. When the clamping assembly needs to be disassembled, the top block can be pressed downward to disengage the limit block from the bottom of the fixed block.

[0006] Preferably, the bottom of the sliding seat is fixedly connected to the top of the base through a guide rail, and the inner wall of the sliding seat is threadedly connected to the outer wall of the positive and negative screw rods. If the initial position of the limit block is protruding upward on the surface of the sliding seat, in the process of sliding the clamping assembly into the top opening of the sliding seat, a slide groove is set so that when the limit block contacts the slide groove, the fixed block can press the limit block downward to prevent it from interfering with the sliding process of the fixed block.

[0007] Preferably, the side wall of the connecting plate is slidably connected to the inner side of the sliding seat, the side wall of the limit block is slidably connected to the inner wall of the sliding seat, the inner side of the sliding seat is fixedly connected to the top of the compression spring, and the clamping assembly is slid into the top opening of the sliding seat. The metal plate at the bottom of the clamping assembly will produce a magnetic adsorption effect with the magnetic plate. During the adsorption process, the magnetic plate drives the connecting plate to overcome the elastic force of the compression spring and move upward, thereby causing the limit block to slide upward synchronously.

[0008] Preferably, the side wall of the clamping assembly is slidably connected to the inner side of the sliding seat, the top of the magnetic plate is magnetically adsorbed to the bottom of the metal plate, a sliding groove is provided at the bottom of the fixed block, the bottom of the top block is in contact with the top of the limit block, and the top of the top block is in contact with the bottom of the sliding seat. When the limit block moves upward, it can be accurately inserted into the hole provided at the bottom of the fixed block, thereby realizing preliminary vertical limitation of the magnetic plate and the clamping assembly to be installed in place, ensuring that they will not move up and down at will in subsequent operations, thereby ensuring the vertical positioning accuracy of the clamping.

[0009] Preferably, the locking device includes a fixed shell, the inner wall of the fixed shell is slidably connected to a sliding frame, the inner side of the sliding frame is fixedly connected to a limiting clamping plate, the inner side of the fixed shell is rotatably connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a clamping block, the bottom of the fixed shell is fixedly connected to the top of the base, the bottom of the limiting clamping plate contacts the outer wall of the clamping block, and the rotating rod at the top of the fixed shell is rotated to drive the positioning block to rotate, so that the positioning block no longer has a limiting effect on the fixed cylinder.

[0010] Preferably, the top of the sliding frame is fixedly connected with a fixed cylinder, the inner side of the fixed cylinder is fixedly connected with a tension spring, the bottom end of the tension spring is fixedly connected with the top of the fixed shell, the top of the fixed shell is rotatably connected with a rotating rod, the outer wall of the rotating rod is fixedly connected with a positioning block, the outer side of the positioning block is in contact with the inner wall of the fixed cylinder, under the elastic force of the tension spring, the fixed cylinder drives the sliding frame to slide downward, and the limit card plate inside the sliding frame moves downward accordingly and is in close contact with the outer wall of the card block, thus realizing the locking function of the positive and negative screw rods.

[0011] The beneficial effects of the present invention are as follows: 1. The present invention sets an air spring isolator, which can effectively isolate low-frequency vibrations from the external environment by using its unique elasticity and air buffering characteristics. The placement table is located on the top of the base, which plays a key role in the fiber coupling process. First, the positioning device is used to accurately position and clamp the optical fiber to be coupled.

[0012] 2. The present invention allows the operator to manually fine-tune the fixed optical fiber appropriately to ensure that the connection between the two optical fibers falls accurately on the placement table. When the optical fiber connection is accurately placed on the placement table, a matching liquid can be dripped on the connection. The matching liquid can improve the optical performance of the optical fiber connection interface and help the optical signal to be transmitted more efficiently between the two optical fibers. Then, the pressing block is turned over so that it is pressed on the optical fiber connection. By applying a certain pressure through the pressing block, the optical fiber connection can be fixed and the matching liquid can be evenly distributed and maintained in the appropriate position, providing a stable guarantee for the smooth progress of the entire optical fiber coupling process and ensuring that the optical signal can be effectively coupled between the two optical fibers as expected.

[0013] 3. The present invention provides a positioning device, whose main function is to realize accurate positioning and clamping of optical fibers and related optical components. When the forward and reverse screws rotate, they can drive the sliding seat to slide linearly along the guide rail on the top of the base, thereby realizing the horizontal position adjustment of the sliding seat. By reasonably controlling the rotation direction and angle of the forward and reverse screws, the sliding seat can be moved to a preset position to prepare for subsequent precise clamping. The protective plate plays a role of protection and auxiliary stability. The bottom of the protective plate is slidably connected to the inner wall of the base, and a dial plate is fixedly connected to the top. The protective plate is located on the top of the forward and reverse screws, which can prevent foreign objects from falling into the forward and reverse screws and related transmission structures, and avoid interference with the normal rotation of the screw and threaded transmission.

[0014] 4. The present invention sets the initial position of the limit block to bulge upward on the surface of the sliding seat. When the clamping assembly slides into the top opening of the sliding seat, the slide groove is set so that when the limit block contacts the slide groove, the fixed block can press the limit block downward to prevent it from interfering with the sliding process of the fixed block. 5. The present invention provides a clamping assembly, and in the initial state, the pressing plate is in an open state to facilitate the insertion of optical fiber and other components. When the optical fiber is placed in a suitable position, the pressing plate is rotated around the rotation point by using the magnets provided on the pressing plate to cooperate with the magnets at the corresponding positions on the fixed block, thereby clamping the optical fiber. This further ensures the stability of the internal structure of the clamping assembly and the reliability of the optical fiber clamping, prevents the optical fiber from loosening after clamping, and realizes high optical fiber clamping positioning.

[0015] 6. The present invention sets a clamping assembly, slides the clamping assembly along the top opening of the sliding seat, and the metal plate at the bottom of the clamping assembly will produce a magnetic adsorption effect with the magnetic plate. During the adsorption process, the magnetic plate drives the connecting plate to overcome the elastic force of the compression spring and move upward, thereby causing the limit block to slide upward synchronously. When the limit block moves upward, it can accurately snap into the hole opened at the bottom of the fixed block, realizing the initial vertical limit of the magnetic plate and the clamping assembly to be installed, ensuring that they will not move up and down at will in subsequent operations, and ensuring the vertical positioning accuracy of the clamping.

[0016] 7. The present invention limits the rotation of the forward and reverse screws by setting a locking device. Under normal circumstances, when it is necessary to limit the rotation of the forward and reverse screws, after the rotating shaft has adjusted the position of the sliding seat through the forward and reverse screws, in order to prevent the forward and reverse screws from rotating due to accidental force, thereby causing the adjusted position to change, it is necessary to start the locking device to lock. At this time, the rotating rod on the top of the fixed shell is operated, and the rotating rod drives the positioning block to rotate, so that the positioning block no longer has a limiting effect on the fixed cylinder. Under the elastic force of the tension spring, the fixed cylinder drives the sliding frame to slide downward, and the limiting clamping plate on the inner side of the sliding frame moves downward accordingly and is in close contact with the outer wall of the clamping block. The locking function of the forward and reverse screws is realized, ensuring that the position of the positioning device can remain stable during the clamping and subsequent operations of the clamping device, thereby improving the overall accuracy and stability of the clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a structural schematic diagram of the positive and negative screw rods of the present invention; Figure 4 The present invention Figure 2 A schematic diagram of the structure at A; Figure 5It is a schematic diagram of the structure of the positioning device of the present invention; Figure 6 It is a structural schematic diagram of the magnetic attraction plate of the present invention; Figure 7 It is a structural schematic diagram of the clamping assembly of the present invention; Figure 8 It is a structural schematic diagram of the locking device of the present invention; Fig. 9 It is a structural schematic diagram of the limit clamping plate of the present invention.

[0018] In the figure: 1. bottom plate; 2. air spring isolator; 3. base; 4. placing table; 5. pressure block; 6. positioning device; 7. forward and reverse screw rods; 8. locking device; 9. protective plate; 10. dial plate; 61. sliding seat; 62. magnetic plate; 63. connecting plate; 64. compression spring; 65. limit block; 66. clamping assembly; 661. fixed block; 662. pressure plate; 663. slide groove; 664. metal plate; 665. top block; 81. fixed shell; 82. sliding frame; 83. fixed cylinder; 84. rotating rod; 85. positioning block; 86. tension spring; 87. rotating shaft; 88. card block; 89. limit card plate. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0020] Example: See Figure 1 - Fig. 9 The present invention provides a technical solution: a clamping device for optical fiber coupling, comprising: A bottom plate 1, air spring isolators 2 are fixedly connected at the four corners of the top of the bottom plate 1, the top of the air spring isolator 2 is fixedly connected to a base 3, the top of the base 3 is fixedly connected to a placing table 4, the top of the placing table 4 is rotatably connected to a pressure block 5, the inner side of the base 3 is rotatably connected to a forward and reverse screw rod 7, the inner wall of the base 3 is slidably connected to a protective plate 9, and the top of the protective plate 9 is fixedly connected to a shift plate 10; a locking device 8, the bottom of the locking device 8 is fixedly connected to the top of the base 3, the outer side of the locking device 8 is fixedly connected to the outer side of the forward and reverse screw rod 7, the locking device 8 is used to limit the rotation of the forward and reverse screw rod 7, the forward and reverse screw rod 7 is a key component for driving the sliding seat 61 to move, and the position adjustment of the positioning device 6 is realized during the rotation process, and the protective plate 9 plays a role of protection and auxiliary stability. The bottom of the protective plate 9 is slidably connected to the inner wall of the base 3, and the top thereof is fixedly connected with a dial plate 10. The protective plate 9 is located at the top of the positive and negative screws 7, which can prevent foreign objects from falling into the positive and negative screws 7 and related transmission structures, and avoid interference with the normal rotation of the screws and threaded transmission. When the device is slightly impacted or vibrated by the outside world, the protective plate 9 can share and buffer part of the impact force through its sliding connection with the base 3 and cooperation with other friends, so as to ensure that the positive and negative screws 7 and key components such as the positioning device 6 can work normally and maintain the overall accuracy and stability of the clamping device; the bottom plate 1 is placed on the working plane as the bottom support base of the entire device. The air spring isolator 2 is fixedly connected at the four corners at the top of the bottom plate 1. The air spring isolator 2 uses its own unique elasticity and air buffering characteristics to effectively isolate low-frequency vibrations from the external environment. The placement table 4 is located at the top of the base 3, which plays a key role in the optical fiber coupling process. First, the optical fiber to be coupled is accurately positioned and clamped by the positioning device 6. After the two optical fibers are fixed, the operator can manually fine-tune the fixed optical fiber to ensure that the connection between the two optical fibers falls accurately on the placement table 4. When the optical fiber connection is accurately placed on the placement table 4, matching liquid can be dripped on the connection. The matching liquid can improve the optical performance of the optical fiber connection interface and help the optical signal to be transmitted more efficiently between the two optical fibers. Next, the pressing block 5 is turned over so that it is pressed on the top of the optical fiber connection. A certain amount of pressure is applied by the pressing block 5 to fix the optical fiber connection and ensure that the matching liquid is evenly distributed and kept in the appropriate position, providing a stable guarantee for the smooth progress of the entire optical fiber coupling process and ensuring that the optical signal can be effectively coupled between the two optical fibers as expected.

[0021] The positioning device 6, the bottom of the positioning device 6 is fixedly connected to the top of the base 3 through a guide rail, the positioning device 6 includes a sliding seat 61, the inner side of the sliding seat 61 is slidably connected with a magnetic attraction plate 62, the outer side of the magnetic attraction plate 62 is fixedly connected with a connecting plate 63, the bottom of the connecting plate 63 is fixedly connected with a limiting block 65, the two sides of the top of the connecting plate 63 are fixedly connected with compression springs 64, the top of the sliding seat 61 is slidably connected with a clamping assembly 66, the positioning device 6 is located on both sides of the placement table 4, and its main function is to achieve precise positioning and clamping of the optical fiber and related optical components. When the forward and reverse screws 7 rotate, they can drive the sliding seat 61 to slide linearly along the guide rail on the top of the base 3, thereby realizing the horizontal position adjustment of the sliding seat 61. By properly controlling the rotation direction and angle of the forward and reverse screw rods 7, the sliding seat 61 can be moved to a preset position to prepare for subsequent precise clamping. When the limit block 65 moves upward, the limit block 65 pushes the top block 665 upward. When it is necessary to disassemble the clamping assembly 66, the top block 665 can be pressed downward to disengage the limit block 65 from the bottom of the fixed block 661. If the initial position of the limit block 65 is convex upward on the surface of the sliding seat 61, when the clamping assembly 66 is slid into the top opening of the sliding seat 61, the sliding groove 663 is set so that when the limit block 65 contacts the sliding groove 663, the fixed block 661 can press the limit block 65 downward to prevent it from interfering with the sliding process of the fixed block 661. The clamping assembly 66 includes a fixed block 661 , the top of which is rotatably connected to a pressure plate 662 , the bottom of which is fixedly connected to a metal plate 664 , and the inner side of which is slidably connected to a top block 665 . The positioning device 6 is located on both sides of the placing table 4, and the protective plate 9 is located at the top of the positive and negative screw rods 7. The outer wall of the positive and negative screw rods 7 is threadedly connected to the inner side of the positioning device 6, and the bottom of the sliding seat 61 is fixedly connected to the top of the base 3 through the guide rail, and the inner wall of the sliding seat 61 is threadedly connected to the outer wall of the positive and negative screw rods 7. The side wall of the connecting plate 63 is slidably connected to the inner side of the sliding seat 61, and the side wall of the limit block 65 is slidably connected to the inner wall of the sliding seat 61. The inner side of the sliding seat 61 is fixedly connected to the top of the compression spring 64, and the side wall of the clamping assembly 66 is slidably connected to the inner side of the sliding seat 61. The top of the magnetic suction plate 62 is magnetically adsorbed to the bottom of the metal plate 664. A sliding groove 663 is provided at the bottom of the fixed block 661, and the bottom of the top block 665 contacts the top of the limit block 65. The top of the top block 665 is in contact with the bottom of the sliding seat 61. When the clamping assembly 66 is in use, in the initial state, the pressing plate 662 is in an open state to facilitate the placement of components such as optical fibers. When the optical fiber is placed in a suitable position, the magnets provided on the pressure plate 662 cooperate with the magnets at the corresponding positions on the fixed block 661 to rotate the pressure plate 662 around the rotation point, thereby clamping the optical fiber. This further ensures the stability of the internal structure of the clamping assembly 66 and the reliability of the optical fiber clamping, prevents the optical fiber from loosening after clamping, and achieves high-precision optical fiber clamping and positioning; when the clamping assembly 66 needs to be installed, the clamping assembly 66 is slid into the top opening of the sliding seat 61, and the metal plate 664 at the bottom of the clamping assembly 66 will produce a magnetic adsorption effect with the magnetic plate 62. During the adsorption process, the magnetic plate 62 drives the connecting plate 63 to overcome the elastic force of the compression spring 64 and move upward, thereby causing the limit block 65 to slide upward synchronously. When the limit block 65 moves upward, it can be accurately inserted into the hole opened at the bottom of the fixed block 661, realizing the initial vertical limitation of the magnetic plate 62 and the clamping assembly 66 to be installed in place, ensuring that they will not move up and down at will during subsequent operations, thereby ensuring the vertical positioning accuracy of the clamping.

[0022] The locking device 8 includes a fixed shell 81, the inner wall of the fixed shell 81 is slidably connected to a sliding frame 82, the inner side of the sliding frame 82 is fixedly connected to a limit clamping plate 89, the inner side of the fixed shell 81 is rotatably connected to a rotating shaft 87, the outer wall of the rotating shaft 87 is fixedly connected to a clamping block 88, the bottom of the fixed shell 81 is fixedly connected to the top of the base 3, the bottom of the limit clamping plate 89 is in contact with the outer wall of the clamping block 88, the top of the sliding frame 82 is fixedly connected to a fixed cylinder 83, the inner side of the fixed cylinder 83 is fixedly connected to a tension spring 86, the bottom end of the tension spring 86 is fixed to the fixed shell 81, and the bottom end of the tension spring 86 is fixed to the fixed shell 81. 1 is fixedly connected to the top of the fixed shell 81, and the top of the fixed shell 81 is rotatably connected with a rotating rod 84, and the outer wall of the rotating rod 84 is fixedly connected with a positioning block 85, and the outer side of the positioning block 85 contacts the inner wall of the fixed cylinder 83. The locking device 8 is mainly used to limit the rotation of the positive and negative screw rods 7. Under normal circumstances, when it is necessary to limit the rotation of the positive and negative screw rods 7, after the rotating shaft 87 adjusts the position of the sliding seat 61 through the positive and negative screw rods 7, in order to prevent the positive and negative screw rods 7 from rotating due to accidental force, thereby causing the adjusted position to change, it is necessary to start the locking device 8 to lock. At this time, the rotating rod 84 at the top of the fixed shell 81 is operated, and the rotating rod 84 drives the positioning block 85 to rotate, so that the positioning block 85 no longer has a limiting effect on the fixed cylinder 83. Under the elastic force of the tension spring 86, the fixed cylinder 83 drives the sliding frame 82 to slide downward, and the limiting clamping plate 89 on the inner side of the sliding frame 82 moves downward accordingly and is in close contact with the outer wall of the clamping block 88. The locking function of the forward and reverse screw rods 7 is realized, ensuring that the position of the positioning device 6 can remain stable during the clamping and subsequent operations of the clamping device, thereby improving the overall accuracy and stability of the clamping.

[0023] Working principle: When in use, the base plate 1 is placed on a working plane as the bottom support base of the entire device. Air spring isolators 2 are fixedly connected at the four corners on the top of the base plate 1. The air spring isolators 2 can effectively isolate low-frequency vibrations from the external environment by utilizing their own unique elasticity and air buffering characteristics. The placement table 4 is located on the top of the base 3, which plays a key role in the fiber coupling process. First, the positioning device 6 is used to accurately position and clamp the optical fiber to be coupled. After the two optical fibers are fixed respectively, the operator can manually make appropriate fine adjustments to the fixed optical fibers to ensure that the connection between the two optical fibers falls accurately on the placement table 4. When the optical fiber connection is accurately placed on the placement table 4, a matching liquid can be dripped on the connection. The matching liquid can improve the optical performance of the optical fiber connection interface and help the optical signal to be more efficiently transmitted between the two optical fibers. Next, the pressing block 5 is turned over so that it is pressed on the connection of the optical fiber. A certain pressure is applied by the pressing block 5 to fix the optical fiber connection and ensure that the matching liquid is evenly distributed and maintained in a suitable position, providing a stable guarantee for the smooth progress of the entire optical fiber coupling process and ensuring that the optical signal can be effectively coupled between the two optical fibers as expected.

[0024] The positioning device 6 is located on both sides of the placement table 4. Its main function is to realize accurate positioning and clamping of the optical fiber and related optical components. When the positive and negative screw rods 7 rotate, they can drive the sliding seat 61 to slide linearly along the guide rail on the top of the base 3, thereby realizing the horizontal position adjustment of the sliding seat 61. By reasonably controlling the rotation direction and angle of the positive and negative screw rods 7, the sliding seat 61 can be moved to a preset position to prepare for subsequent accurate clamping.

[0025] The forward and reverse screw rods 7 are key components for driving the sliding seat 61 to move, and the position of the positioning device 6 is adjusted during the rotation process, while the protective plate 9 plays a role of protection and auxiliary stability. The bottom of the protective plate 9 is slidably connected to the inner wall of the base 3, and the top is fixedly connected with a dial plate 10. The protective plate 9 is located on the top of the forward and reverse screw rods 7, which can prevent foreign objects from falling into the forward and reverse screw rods 7 and related transmission structures, and avoid interference with the normal rotation of the screw rods and threaded transmission. When the device is slightly impacted or vibrated by the outside world, the protective plate 9 can share and buffer part of the impact force through its sliding connection with the base 3 and cooperation with other friends, so as to ensure that the forward and reverse screw rods 7 and key components such as the positioning device 6 can work normally and maintain the overall accuracy and stability of the clamping device.

[0026] When the limit block 65 moves upward, the limit block 65 pushes the top block 665 upward. When the clamping assembly 66 needs to be disassembled, the top block 665 can be pressed downward to disengage the limit block 65 from the bottom of the fixed block 661. If the initial position of the limit block 65 is protruding upward on the surface of the sliding seat 61, when the clamping assembly 66 is slid into the top opening of the sliding seat 61, the sliding groove 663 is set so that when the limit block 65 contacts the sliding groove 663, the fixed block 661 can press the limit block 65 downward to prevent it from interfering with the sliding process of the fixed block 661.

[0027] When the clamping assembly 66 is in use, in the initial state, the pressing plate 662 is in an open state to facilitate the insertion of optical fibers and other components. When the optical fiber is placed in a suitable position, the pressing plate 662 is rotated around the rotation point by using the magnets provided on the pressing plate 662 to cooperate with the magnets at the corresponding positions on the fixing block 661, thereby clamping the optical fiber. This further ensures the stability of the internal structure of the clamping assembly 66 and the reliability of the optical fiber clamping, prevents the optical fiber from loosening after clamping, and realizes high-precision optical fiber clamping and positioning.

[0028] When the clamping assembly 66 needs to be installed, the clamping assembly 66 is slid into the top opening of the sliding seat 61, and the metal plate 664 at the bottom of the clamping assembly 66 will produce a magnetic adsorption effect with the magnetic plate 62. During the adsorption process, the magnetic plate 62 drives the connecting plate 63 to overcome the elastic force of the compression spring 64 and move upward, thereby causing the limit block 65 to slide upward synchronously. When the limit block 65 moves upward, it can accurately snap into the hole opened at the bottom of the fixed block 661, realizing the initial vertical limit of the magnetic plate 62 and the clamping assembly 66 to be installed, ensuring that they will not move up and down at will in subsequent operations, and ensuring the vertical positioning accuracy of the clamping.

[0029] The locking device 8 is mainly used to limit the rotation of the forward and reverse screw rods 7. Under normal circumstances, when it is necessary to limit the rotation of the forward and reverse screw rods 7, after the rotating shaft 87 adjusts the position of the sliding seat 61 through the forward and reverse screw rods 7, in order to prevent the forward and reverse screw rods 7 from rotating due to accidental force, thereby causing the adjusted position to change, it is necessary to start the locking device 8 to lock. At this time, the rotating rod 84 on the top of the fixed shell 81 is operated, and the rotating rod 84 drives the positioning block 85 to rotate, so that the positioning block 85 no longer has a limiting effect on the fixed cylinder 83. Under the elastic force of the tension spring 86, the fixed cylinder 83 drives the sliding frame 82 to slide downward, and the limiting clamping plate 89 on the inner side of the sliding frame 82 moves downward and is in close contact with the outer wall of the clamping block 88. The locking function of the forward and reverse screw rods 7 is realized, ensuring that the position of the positioning device 6 can remain stable during the clamping and subsequent operations of the clamping device, thereby improving the overall accuracy and stability of the clamping.

[0030] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A clamping device for optical fiber coupling, characterized in that: include: A bottom plate (1), wherein air spring isolators (2) are fixedly connected at four corners of the top of the bottom plate (1), the top of the air spring isolator (2) is fixedly connected to a base (3), the top of the base (3) is fixedly connected to a placement table (4), the top of the placement table (4) is rotatably connected to a pressure block (5), the inner side of the base (3) is rotatably connected to a forward and reverse screw rod (7), the inner wall of the base (3) is slidably connected to a protective plate (9), and the top of the protective plate (9) is fixedly connected to a shift plate (10); A locking device (8), wherein the bottom of the locking device (8) is fixedly connected to the top of the base (3), and the outer side of the locking device (8) is fixedly connected to the outer side of the forward and reverse screw rods (7), and the locking device (8) is used to limit the rotation of the forward and reverse screw rods (7); A positioning device (6), wherein the bottom of the positioning device (6) is fixedly connected to the top of the base (3) via a guide rail, the positioning device (6) comprises a sliding seat (61), the inner side of the sliding seat (61) is slidably connected to a magnetic attraction plate (62), the outer side of the magnetic attraction plate (62) is fixedly connected to a connecting plate (63), the bottom of the connecting plate (63) is fixedly connected to a limiting block (65), both sides of the top of the connecting plate (63) are fixedly connected to compression springs (64), and the top of the sliding seat (61) is slidably connected to a clamping assembly (66); The clamping assembly (66) comprises a fixed block (661), the top of the fixed block (661) is rotatably connected to a pressure plate (662), the bottom of the fixed block (661) is fixedly connected to a metal plate (664), and the inner side of the fixed block (661) is slidably connected to a top block (665).

2. A clamping device for optical fiber coupling according to claim 1, characterized in that: The positioning devices (6) are located on both sides of the placement platform (4), the protection plates (9) are located on the top of the forward and reverse screw rods (7), and the outer walls of the forward and reverse screw rods (7) are threadedly connected to the inner sides of the positioning devices (6).

3. A clamping device for optical fiber coupling according to claim 1, characterized in that: The bottom of the sliding seat (61) is fixedly connected to the top of the base (3) via a guide rail, and the inner wall of the sliding seat (61) is threadedly connected to the outer wall of the forward and reverse screw rods (7).

4. A clamping device for optical fiber coupling according to claim 1, characterized in that: The side wall of the connecting plate (63) is slidably connected to the inner side of the sliding seat (61), the side wall of the limiting block (65) is slidably connected to the inner wall of the sliding seat (61), and the inner side of the sliding seat (61) is fixedly connected to the top of the compression spring (64).

5. The clamping device for optical fiber coupling according to claim 1, characterized in that: The side wall of the clamping assembly (66) is slidably connected to the inner side of the sliding seat (61), the top of the magnetic attraction plate (62) is magnetically attracted to the bottom of the metal plate (664), a sliding groove (663) is provided at the bottom of the fixed block (661), the bottom of the top block (665) is in contact with the top of the limit block (65), and the top of the top block (665) is in contact with the bottom of the sliding seat (61).

6. A clamping device for optical fiber coupling according to claim 1, characterized in that: The locking device (8) comprises a fixed shell (81), the inner wall of the fixed shell (81) is slidably connected to a sliding frame (82), the inner side of the sliding frame (82) is fixedly connected to a limit clamping plate (89), the inner side of the fixed shell (81) is rotatably connected to a rotating shaft (87), and the outer wall of the rotating shaft (87) is fixedly connected to a clamping block (88).

7. A clamping device for optical fiber coupling according to claim 6, characterized in that: The bottom of the fixed shell (81) is fixedly connected to the top of the base (3), and the bottom of the limit clamping plate (89) is in contact with the outer wall of the clamping block (88).

8. The clamping device for optical fiber coupling according to claim 6, characterized in that: The top of the sliding frame (82) is fixedly connected to a fixed cylinder (83), the inner side of the fixed cylinder (83) is fixedly connected to a tension spring (86), and the bottom end of the tension spring (86) is fixedly connected to the top of the fixed shell (81).

9. The clamping device for optical fiber coupling according to claim 6, characterized in that: The top of the fixed shell (81) is rotatably connected to a rotating rod (84), the outer wall of the rotating rod (84) is fixedly connected to a positioning block (85), and the outer side of the positioning block (85) is in contact with the inner wall of the fixed cylinder (83).

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