An optical fiber optical isolator automatic test system

Abstract

The application discloses a kind of optical fiber optical isolator automation test system, including test table, the test table one side is provided with feed conveyor, the test table other side is provided with discharge conveyor, the test table rear side is provided with rework conveyor, the test table top is provided with top plate, the top plate bottom is provided with clamping mechanism.The application is by setting telescopic column, fixed plate and electric connection plug, can reach the electric connection plug and the insertion of the socket of the two sides of optical isolator, realize automatically and insert optical isolator into optical path and test, without manual access;By setting positioning plate, lug and positioning block, it can be achieved that the optical isolator in the test process is clamped and positioned, the accuracy of the optical isolator placed in the center of test table is also increased, to ensure that the two electric connection plugs and the optical isolator are accurately inserted;By setting top plate and clamping mechanism, the automatic switching function of optical isolator insertion loss and isolation degree test process can be achieved.

Description

Technical Field

[0001] This invention relates to the field of optical isolator testing technology, specifically to an automated testing system for fiber optic isolators. Background Technology

[0002] An optical isolator is a passive optical device that allows light to pass in one direction while blocking it from passing in the opposite direction. It restricts the direction of light, allowing light to travel in only one direction. Light reflected back through the optical fiber can be effectively isolated by the optical isolator, improving the efficiency of optical wave transmission. Optical isolators have the characteristics of low forward insertion loss, high reverse isolation, and high return loss.

[0003] Currently, the production specifications for optical isolators require low insertion loss and low reverse loss or high forward loss. Therefore, it is necessary to test parameters such as insertion loss and isolation of optical isolators. During the insertion loss and isolation test, the optical isolator needs to be connected to the laser and the transmission fiber, and a light source and an optical power meter are installed at both ends respectively. When testing the insertion loss, the optical isolator is connected to the optical path in the forward direction, and when testing the isolation, the optical isolator is connected to the optical path in the reverse direction.

[0004] Because the optical path connection directions for the two parameters of the optical isolator are opposite, light needs to be introduced at both ends of the optical isolator for testing. When switching test parameters, the optical isolator circuit needs to be manually disassembled, reversed and reconnected, and then debugged. This results in the testing process of a single optical isolator taking too long, and the testing process relies entirely on manual operation and recording. Tested products rely on manual screening, resulting in an excessive workload for manual workers and low testing efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an automated testing system for fiber optic isolators to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automated testing system for fiber optic isolators, comprising a test bench, a feeding conveyor belt on one side of the test bench, a discharging conveyor belt on the other side of the test bench, a rework conveyor belt on the rear side of the test bench, a top plate above the test bench, a clamping mechanism at the bottom of the top plate, a controller mounted on the top of the top plate, a light source above the side of the test bench near the feeding conveyor belt, and an optical power meter above the side of the test bench near the discharging conveyor belt. Both the light source and the optical power meter are mounted on mounting bases at their bottoms.

[0007] Preferably, positioning cylinders are embedded in both the front and rear sides of the fixed base. The telescopic end of the positioning cylinder is connected to a positioning plate. A protrusion is connected to the side of the positioning plate away from the positioning cylinder. A telescopic groove is opened in the middle of the fixed base. A telescopic column is set inside the telescopic groove. A fixed plate is connected to one end of the telescopic column. An electrical connection plug is passed through the middle of the fixed plate. A transmission optical fiber is connected between the electrical connection plug and the light source and the optical power meter. A positioning block is installed in the middle of the upper surface of the test platform. The positioning block is in the shape of a right-angled triangle. There are four positioning blocks, which are arranged symmetrically.

[0008] Preferably, the protrusion is embedded at the corner of the optical isolator, the positioning plate is integrally connected to the protrusion, and the positioning plate is connected to the telescopic end of the positioning cylinder.

[0009] Preferably, the telescopic column is rectangular in shape, the outer diameter of the telescopic column is adapted to the inner diameter of the telescopic groove, the telescopic column is slidably connected to the inner wall of the telescopic groove, the telescopic column is connected to an electrical connector via a fixing plate, and the transmission optical fiber passes through the fixing plate and connects to a light source and an optical power meter via the side wall of the telescopic column.

[0010] Preferably, the telescopic column has a telescopic screw hole inside, and a telescopic screw rod is installed inside the telescopic screw hole. The end of the telescopic screw rod away from the telescopic column is connected to a telescopic motor, and the telescopic screw rod is inserted into the telescopic screw hole to form a threaded connection with the telescopic column.

[0011] Preferably, the top plate is connected to four corners at the bottom, and a groove is formed at the center of the bottom of the top plate. A sliding screw is provided inside the groove, and a sliding motor is connected to one end of the sliding screw. A slider is sleeved on the sliding screw, and a sliding screw hole is formed through the middle of the slider. A bracket is connected to the bottom of the slider, and a lifting cylinder is installed on one side of the bracket. The two ends of the top plate are respectively installed above the feeding conveyor belt and the discharging conveyor belt through the support feet.

[0012] Preferably, one end of the sliding screw is connected to a sliding motor, and the other end of the sliding screw is rotatably connected to the inner wall of the slide groove via a bearing. The sliding screw passes through the sliding screw hole to form a threaded connection with the slider, and the slider is stuck inside the slide groove and slidably connected to the top plate.

[0013] Preferably, the clamping mechanism includes a first clamping block, a second clamping block is provided on one side of the first clamping block, a clamping screw is provided through the top of the first clamping block and the second clamping block, a support bearing is installed inside the first clamping block outside the clamping screw, a clamping motor is connected to one end of the clamping screw, a clamping screw hole is provided through the second clamping block, a rework frame is provided on the top of the first clamping block, a rework cylinder is connected to one side of the rework frame, a connecting seat is provided above the rework frame, and a steering motor is embedded in the connecting seat.

[0014] Preferably, the clamping screw passes through the first clamping block and the second clamping block in sequence. The clamping screw is rotatably connected to the first clamping block through a support bearing. The clamping screw is threadedly connected to the second clamping block through a clamping screw hole. The top of the first clamping block is slidably connected to the bottom of the rework frame. The side wall of the first clamping block is connected to a rework cylinder.

[0015] Preferably, the connecting seat is connected to the telescopic end of the lifting cylinder, and the shaft end of the steering motor is connected to the rework frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This automated testing system for fiber optic isolators uses a telescopic column, a fixed plate, and an electrical connector. A telescopic motor drives a telescopic screw to rotate, which in turn drives the telescopic column to slide within a telescopic groove. This causes the telescopic column to move the fixed plate and the electrical connector toward one side of the isolator, allowing the electrical connector to be inserted into the sockets on both sides of the isolator. The electrical connector is then connected to a light source and an optical power meter via a transmission fiber, thus automatically connecting the isolator to the optical path for testing without the need for manual connection.

[0017] 2. This automated testing system for fiber optic isolators uses positioning plates, protrusions, and positioning blocks. After the clamping mechanism transfers the optical isolator to be tested onto the test bench, four positioning blocks position the front and rear sides of the optical isolator, while the positioning plates and protrusions on the two fixed seats press and position the ends of the optical isolator. This ensures that the optical isolator is stably placed in the center of the test bench during the test, preventing displacement, and also increases the accuracy of placing the optical isolator in the center of the test bench, ensuring that the electrical connectors on both sides are accurately plugged into the optical isolator.

[0018] 3. This automated testing system for fiber optic isolators uses a top plate and a clamping mechanism. The top plate mounts the clamping mechanism above the feed and discharge conveyors. A sliding screw inside the top plate drives the clamping mechanism to move horizontally, automatically clamping and loading / unloading optical isolators for testing. Simultaneously, a rework rack is connected to the shaft of a steering motor, which in turn connects to the clamping mechanism. After the insertion loss test, the steering motor drives the clamping mechanism to rotate 180°, allowing the optical isolators clamped on the system to rotate 180° and be connected to the optical path in reverse for isolation testing. This achieves automatic switching between insertion loss and isolation testing processes for optical isolators.

[0019] 4. This automated testing system for fiber optic isolators uses a rework rack and rework cylinder. When an isolator fails the test, a clamping mechanism lowers and clamps the isolator. The rework cylinder extends and pushes the clamping mechanism to slide at the bottom of the rework rack. The clamping mechanism moves the isolator toward one side of the rework conveyor belt, transferring the unqualified isolator to the rework conveyor belt for rework and repair. This system automatically sorts the tested products and obtains qualified isolators for subsequent packaging. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the test bench structure of the present invention; Figure 4 This is a schematic diagram of the fixing base structure of the present invention; Figure 5 This is a top sectional view of the fixing seat structure of the present invention; Figure 6 This is a schematic diagram of the bottom structure of the top plate of the present invention; Figure 7 This is a schematic diagram of the connection structure between the clamping mechanism and the slider of the present invention; Figure 8 This is a schematic diagram of the connection structure of the clamping mechanism of the present invention.

[0021] In the diagram: 1. Test stand; 11. Light source; 12. Optical power meter; 13. Fixing base; 14. Positioning cylinder; 15. Positioning plate; 16. Protrusion; 17. Telescopic groove; 18. Telescopic column; 19. Fixing plate; 110. Electrical connector; 111. Transmission fiber; 112. Telescopic screw hole; 113. Telescopic screw; 114. Telescopic motor; 115. Positioning block; 2. Feed conveyor belt; 3. Discharge conveyor belt; 4. Rework conveyor belt; 5. 51. Top plate; 52. Support leg; 53. Slide groove; 54. Sliding screw; 55. Sliding motor; 56. Sliding slider; 57. Sliding screw hole; 58. Bracket; 69. Lifting cylinder; 60. Clamping mechanism; 61. First clamping block; 62. Second clamping block; 63. Clamping screw; 64. Support bearing; 65. Clamping motor; 66. Clamping screw hole; 67. Rework rack; 68. Rework cylinder; 69. Connecting seat; 610. Steering motor; 7. Controller. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] like Figures 1 to 8 As shown, the automated testing system for fiber optic isolators in this embodiment includes a test bench 1. A feeding conveyor belt 2 is installed on one side of the test bench 1, and a discharging conveyor belt 3 is installed on the other side. The feeding and discharging conveyor belts 2 and 3 are symmetrically installed on both sides of the test bench 1, respectively used for feeding and discharging optical isolators. A rework conveyor belt 4 is installed at the rear of the test bench 1, used to transfer unqualified optical isolators for rework and repair. A top plate 5 is installed above the test bench 1, and a clamping mechanism 6 is installed at the bottom of the top plate 5. The clamping mechanism 6 is used to lift and clamp the optical isolators, realizing automatic transfer of the optical isolators and facilitating optical isolator transfer. The loading and unloading of the isolator is handled by a controller 7 installed on the top plate 5. The controller 7 serves as the main control center of the testing system, ensuring the automated and normal operation of the optical isolator testing process. A light source 11 is installed on the side of the test platform 1 closest to the feeding conveyor belt 2, and an optical power meter 12 is installed on the side of the test platform 1 closest to the discharging conveyor belt 3. Both the light source 11 and the optical power meter 12 are required components for the optical path of the optical isolator test. A mounting base 13 is installed at the bottom of both the light source 11 and the optical power meter 12. The mounting base 13 is installed on the upper surface of the test platform 1 to assist in the automatic connection of the light source 11, the optical power meter 12 and the optical isolator.

[0026] Specifically, positioning cylinders 14 are embedded in both the front and rear sides of the fixed base 13. Positioning plates 15 are connected to the telescopic ends of the positioning cylinders 14. A protrusion 16 is connected to the side of the positioning plate 15 away from the positioning cylinder 14. The telescopic movement of the positioning cylinders 14 moves the positioning plates 15 and protrusions 16 on the test bench 1, causing them to press and position the optical isolator on both sides. A telescopic groove 17 is provided in the middle of the fixed base 13, and a telescopic column 18 is installed inside the groove 17. A fixed plate 19 is connected to one end of the telescopic column 18, and an electrical connection plug is inserted through the middle of the fixed plate 19. The head 110, the electrical connector 110, and the light source 11 and optical power meter 12 are connected by a transmission optical fiber 111. The connection between the light source 11, the optical power meter 12 and the optical isolator is achieved by plugging the electrical connector 110 into the optical isolator. A positioning block 115 is installed in the middle of the upper surface of the test platform 1. The positioning block 115 is in the shape of a right-angled triangle. There are four positioning blocks 115, which are arranged symmetrically. The positioning blocks 115 are installed on the upper surface of the test platform 1. The distance between the front and rear positioning blocks 115 is adapted to the width of the optical isolator to be tested. The four positioning blocks 115 are used to position the front and rear sides of the optical isolator.

[0027] Furthermore, the protrusion 16 is embedded in the corner of the optical isolator. The contact between the protrusion 16 and the corner of the optical isolator increases the stability of the positioning plate 15 in positioning the optical isolator. The positioning plate 15 and the protrusion 16 are integrally connected. The positioning plate 15 is connected to the telescopic end of the positioning cylinder 14. The positioning cylinder 14 extends and pushes the positioning plate 15 and the protrusion 16 on the two fixed seats 13 to squeeze and position the two ends of the optical isolator. On the one hand, this ensures that the optical isolator is stably placed in the center of the test bench 1 during the test, preventing the optical isolator from shifting. On the other hand, it increases the accuracy of the optical isolator being placed in the center of the test bench 1, ensuring that the electrical connectors 110 on both sides are accurately plugged into the optical isolator.

[0028] Furthermore, the telescopic column 18 is rectangular in shape, and its outer diameter is matched with the inner diameter of the telescopic groove 17. The telescopic column 18 is inserted into the telescopic groove 17 and is slidably connected to the inner wall of the telescopic groove 17. The telescopic column 18 is connected to the electrical connector 110 via the fixing plate 19. The telescopic column 18 extends and retracts within the telescopic groove 17, pushing the electrical connector 110 to move on the test bench 1. The transmission optical fiber 111 passes through the fixing plate 19 and is connected to the light source 11 and the optical power meter 12 via the side wall of the telescopic column 18. The end of the transmission optical fiber 111 is connected to the electrical connector 110. A laser is also connected to the transmission optical fiber 111 between the light source 11 and the electrical connector 110, providing a complete test optical path for the insertion loss and isolation test of the optical isolator.

[0029] Furthermore, the telescopic column 18 has a telescopic screw hole 112 inside, and a telescopic screw 113 is installed inside the telescopic screw hole 112. The end of the telescopic screw 113 away from the telescopic column 18 is connected to a telescopic motor 114. The telescopic motor 114 is essentially a motor with forward and reverse rotation circuits. The shaft end of the telescopic motor 114 is connected to the telescopic screw 113. The telescopic screw 113 is inserted into the telescopic screw hole 112 and forms a threaded connection with the telescopic column 18. The telescopic motor 114 drives the telescopic screw 113 to rotate. The telescopic screw 113 drives the telescopic column 18 to slide in the telescopic groove 17 through the telescopic screw hole 112. This causes the telescopic column 18 to move the fixing plate 19 and the electrical connector 110 toward one side of the optical isolator, so that the electrical connector 110 is plugged into the sockets on both sides of the optical isolator. The electrical connector 110 is connected to the light source 11 and the optical power meter 12 through the transmission optical fiber 111, realizing the automatic connection of the optical isolator into the optical path for testing.

[0030] Furthermore, each of the four corners of the bottom of the top plate 5 is connected to a support leg 51. A groove 52 is provided at the center of the bottom of the top plate 5. A sliding screw 53 is provided inside the groove 52. The sliding screw 53 is used to drive the slider 55 to slide horizontally within the groove 52. One end of the sliding screw 53 is connected to a sliding motor 54. The sliding motor 54 is essentially a motor with a forward and reverse rotation circuit. The shaft end of the sliding motor 54 is connected to the sliding screw 53. The slider 55 is driven to move left and right by the forward and reverse rotation of the sliding motor 54. The slider 55 is sleeved on the sliding screw 53. A sliding screw hole 56 is provided through the middle of the slider 55. A bracket 57 is connected to the bottom of the slider 55. A lifting cylinder 58 is installed on one side of the bracket 57. The telescopic end of the lifting cylinder 58 is connected to the clamping mechanism 6. It is used to drive the clamping mechanism 6 to lift and lower the light isolator. The two ends of the top plate 5 are respectively installed above the feeding conveyor belt 2 and the discharging conveyor belt 3 by the support legs 51. The support legs 51 are installed on the side walls of the feeding conveyor belt 2 and the discharging conveyor belt 3 by bolts.

[0031] Furthermore, one end of the sliding screw 53 is connected to the sliding motor 54, and the other end of the sliding screw 53 is rotatably connected to the inner wall of the slide groove 52 via a bearing. The sliding motor 54 drives the sliding screw 53 to rotate in the slide groove 52. The sliding screw 53 passes through the sliding screw hole 56 to form a threaded connection with the slider 55. The slider 55 is stuck inside the slide groove 52 and slidably connected to the top plate 5. The sliding screw 53 drives the slider 55 to slide in the slide groove 52 via the sliding screw hole 56. The slider 55 drives the clamping mechanism 6 to move left and right, which is used to pick up the optical isolator and then transfer it.

[0032] Furthermore, the clamping mechanism 6 includes a first clamping block 61, and a second clamping block 62 is provided on one side of the first clamping block 61. The first clamping block 61 and the second clamping block 62 are close to each other to clamp the side wall of the optical isolator and remove the optical isolator. A guide rod is connected between the first clamping block 61 and the second clamping block 62. The guide rod passes through the second clamping block 62 and is used both to guide the movement of the second clamping block 62 and to limit the rotation of the second clamping block 62 driven by the clamping screw 63. The clamping screw 63 is provided through the top of the first clamping block 61 and the second clamping block 62. A support bearing 64 is installed inside the first clamping block 61 outside the clamping screw 63. One end of the clamping screw 63 is connected to a clamping motor 65. The clamping motor 65 is essentially... The motor is equipped with a forward and reverse rotation circuit. The clamping motor 65 drives the second clamping block 62 to move closer to or further away from the first clamping block 61 in both forward and reverse rotation. The second clamping block 62 has a through clamping screw hole 66. A rework frame 67 is provided on the top of the first clamping block 61. A rework cylinder 68 is connected to one side of the rework frame 67. A connecting seat 69 is provided above the rework frame 67. A steering motor 610 is embedded in the connecting seat 69. The steering motor 610 is a servo motor with a fixed torque. After the insertion loss test is completed, the steering motor 610 drives the clamping mechanism 6 to rotate 180°, which can rotate the optical isolator clamped on the clamping mechanism 6 by 180°, so that the optical isolator can be connected to the optical path in reverse for isolation testing.

[0033] Furthermore, the clamping screw 63 passes sequentially through the first clamping block 61 and the second clamping block 62. The clamping screw 63 is rotatably connected to the first clamping block 61 via a support bearing 64, and is threadedly connected to the second clamping block 62 via a clamping screw hole 66. The clamping motor 65 drives the clamping screw 63 to rotate, and the clamping screw 63 drives the second clamping block 62 to move toward the first clamping block 61 via the clamping screw hole 66, so that the first clamping block 61 and the second clamping block 62 clamp the two sides of the optical isolator. When the clamping motor 65 reverses, The second clamping block 62 moves toward the side away from the first clamping block 61, loosening the optical isolator. The top of the first clamping block 61 is slidably connected to the bottom of the rework rack 67. The side wall of the first clamping block 61 is connected to the rework cylinder 68. The rework cylinder 68 extends and pushes the clamping mechanism 6 to slide at the bottom of the rework rack 67. The clamping mechanism 6 drives the optical isolator to move toward the side of the rework conveyor belt 4, so that the clamping mechanism 6 transfers the unqualified optical isolator to the rework conveyor belt 4 for rework and repair, realizing automatic screening of the tested products.

[0034] Furthermore, the connecting seat 69 is connected to the telescopic end of the lifting cylinder 58. The extension of the lifting cylinder 58 pushes the connecting seat 69 to move downward, and the connecting seat 69 drives the clamping mechanism 6 to move downward, realizing the lifting and picking function of the clamping mechanism 6. The shaft end of the steering motor 610 is connected to the rework frame 67. The rework frame 67 transmits the steering force of the steering motor 610 to the clamping mechanism 6, which facilitates the clamping mechanism 6 to drive the optical isolator to turn, realizes the horizontal steering function of the optical isolator, and ensures that the clamping mechanism 6 can adapt to the multi-directional movement trajectory required for the testing of the optical isolator.

[0035] The usage method of this embodiment is as follows: When the user is actually testing the insertion loss and isolation parameters of the optical isolator, the optical isolator to be tested is first placed on the feeding conveyor belt 2 for conveying. The feeding conveyor belt 2 moves the optical isolator toward one side of the test table 1. The sliding motor 54 drives the sliding screw 53 to rotate in the slide groove 52. The sliding screw 53 drives the slider 55 to slide in the slide groove 52 through the sliding screw hole 56, so that the slider 55 drives the clamping mechanism 6 to move above the feeding conveyor belt 2. The lifting cylinder 58 extends and pushes the clamping mechanism 6 to move down. The first clamping block 61 and the second clamping block 62 in the clamping mechanism 6 are respectively placed on the front and rear sides of the optical isolator. The clamping motor 65 drives the clamping screw 63 to rotate, and the clamping screw... Rod 63 drives the second clamping block 62 to move toward the first clamping block 61 via clamping screw hole 66, so that the first clamping block 61 and the second clamping block 62 clamp the two sides of the optical isolator. Lifting cylinder 58 retracts, driving clamping mechanism 6 to move upward. Clamping mechanism 6 clamps and lifts optical isolator. Then sliding motor 54 adjusts sliding screw 53 to rotate in the opposite direction, driving slider 55 to move clamping mechanism 6 and optical isolator to above the center of test bench 1. At the same time, steering motor 610 drives optical isolator to rotate 90° via rework rack 67. After clamping mechanism 6 descends, optical isolator is placed longitudinally on test bench 1. Four positioning blocks 115 position the front and rear sides of optical isolator. At the same time, positioning cylinders 14 in two fixed seats 13 extend, pushing the positioning blocks 115 to move the optical isolator to the center of test bench 1. Positioning plate 15 and protrusion 16 press and position the two ends of the optical isolator, ensuring the optical isolator is stably placed in the center of the test bench 1. Then, telescopic motor 114 drives telescopic screw 113 to rotate. The telescopic screw 113 drives telescopic column 18 to slide in telescopic groove 17 through telescopic screw hole 112. This causes telescopic column 18 to move fixing plate 19 and electrical connector 110 toward one side of the optical isolator. The electrical connector 110 is then inserted into the sockets on both sides of the optical isolator, allowing the optical isolator to be connected to the optical path for testing. Optical power meter 12 acquires optical power data, and the insertion loss parameter data is obtained after calculation using a formula. Then, telescopic column 18 retracts and pulls out electrical connector 110. Positioning plate 15 and protrusion 16 retract, clamping the optical isolator. Mechanism 6 clamps the optical isolator again and uses the steering motor 610 to rotate the optical isolator 180°, swapping the positions of the two sides of the optical isolator. Then, the above operation is repeated to reverse the optical isolator into the optical path for isolation parameter testing. After the test is completed, controller 7 calculates and processes the test data. When the optical isolator test parameters are qualified, clamping mechanism 6 clamps and, in conjunction with sliding screw 53, transfers the optical isolator to discharge conveyor belt 3. When the optical isolator test parameters are unqualified, rework cylinder 68 extends and pushes clamping mechanism 6 to slide at the bottom of rework frame 67. Clamping mechanism 6 moves the optical isolator toward one side of rework conveyor belt 4, transferring the unqualified optical isolator to rework conveyor belt 4 for rework and repair.

[0036] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated testing system for fiber optic isolators, comprising a test bench (1), characterized in that: A feeding conveyor belt (2) is provided on one side of the test platform (1), a discharging conveyor belt (3) is provided on the other side of the test platform (1), a rework conveyor belt (4) is provided on the rear side of the test platform (1), a top plate (5) is provided above the test platform (1), a clamping mechanism (6) is provided at the bottom of the top plate (5), a controller (7) is installed on the top of the top plate (5), a light source (11) is provided above the side of the test platform (1) near the feeding conveyor belt (2), an optical power meter (12) is provided above the side of the test platform (1) near the discharging conveyor belt (3), and a fixed base (13) is installed at the bottom of both the light source (11) and the optical power meter (12). Positioning cylinders (14) are embedded in both the front and rear sides of the fixed base (13). The telescopic end of the positioning cylinder (14) is connected to a positioning plate (15). A protrusion (16) is connected to the side of the positioning plate (15) away from the positioning cylinder (14). A telescopic groove (17) is opened in the middle of the fixed base (13). A telescopic column (18) is set inside the telescopic groove (17). A fixed plate (19) is connected to one end of the telescopic column (18). An electrical connector (110) is installed through the middle of the fixed plate (19). A transmission optical fiber (111) is connected between the electrical connector (110) and the light source (11) and the optical power meter (12). A positioning block (115) is installed in the middle of the upper surface of the test platform (1). The positioning block (115) is in the shape of a right-angled triangle. There are four positioning blocks (115) arranged symmetrically. The clamping mechanism (6) includes a first clamping block (61), a second clamping block (62) is provided on one side of the first clamping block (61), a clamping screw (63) is provided through the top of the first clamping block (61) and the second clamping block (62), a support bearing (64) is installed inside the first clamping block (61) outside the clamping screw (63), a clamping motor (65) is connected to one end of the clamping screw (63), a clamping screw hole (66) is provided through the second clamping block (62), a rework frame (67) is provided on the top of the first clamping block (61), a rework cylinder (68) is connected to one side of the rework frame (67), a connecting seat (69) is provided above the rework frame (67), and a steering motor (610) is embedded inside the connecting seat (69).

2. The automated testing system for fiber optic isolators according to claim 1, characterized in that: The protrusion (16) is embedded at the corner of the optical isolator, the positioning plate (15) is integrally connected with the protrusion (16), and the positioning plate (15) is connected to the telescopic end of the positioning cylinder (14).

3. The automated testing system for fiber optic isolators according to claim 1, characterized in that: The telescopic column (18) is rectangular in shape. The outer diameter of the telescopic column (18) is adapted to the inner diameter of the telescopic groove (17). The telescopic column (18) is slidably connected to the inner wall of the telescopic groove (17). The telescopic column (18) is connected to the electrical connector (110) via the fixing plate (19). The transmission optical fiber (111) passes through the fixing plate (19) and connects to the light source (11) and the optical power meter (12) on the side wall of the telescopic column (18).

4. The automated testing system for fiber optic isolators according to claim 1, characterized in that: The telescopic column (18) has a telescopic screw hole (112) inside, and a telescopic screw rod (113) is provided inside the telescopic screw hole (112). The end of the telescopic screw rod (113) away from the telescopic column (18) is connected to a telescopic motor (114). The telescopic screw rod (113) is inserted into the telescopic screw hole (112) and forms a threaded connection with the telescopic column (18).

5. The automated testing system for fiber optic isolators according to claim 1, characterized in that: The top plate (5) is connected to four corners of the bottom with support feet (51). A groove (52) is provided at the center of the bottom of the top plate (5). A sliding screw (53) is provided inside the groove (52). A sliding motor (54) is connected to one end of the sliding screw (53). A slider (55) is sleeved on the sliding screw (53). A sliding screw hole (56) is provided through the middle of the slider (55). A bracket (57) is connected to the bottom of the slider (55). A lifting cylinder (58) is installed on one side of the bracket (57). The two ends of the top plate (5) are respectively installed above the feeding conveyor belt (2) and the discharging conveyor belt (3) through the support feet (51).

6. The automated testing system for fiber optic isolators according to claim 5, characterized in that: One end of the sliding screw (53) is connected to the sliding motor (54), and the other end of the sliding screw (53) is rotatably connected to the inner wall of the slide groove (52) via a bearing. The sliding screw (53) passes through the sliding screw hole (56) and passes through the slider (55) to form a threaded connection. The slider (55) is stuck inside the slide groove (52) and is slidably connected to the top plate (5).

7. The automated testing system for fiber optic isolators according to claim 1, characterized in that: The clamping screw (63) passes through the first clamping block (61) and the second clamping block (62) in sequence. The clamping screw (63) is rotatably connected to the first clamping block (61) through the support bearing (64). The clamping screw (63) is threadedly connected to the second clamping block (62) through the clamping screw hole (66). The top of the first clamping block (61) is slidably connected to the bottom of the rework frame (67). The side wall of the first clamping block (61) is connected to the rework cylinder (68).

8. The automated testing system for fiber optic isolators according to claim 1, characterized in that: The connecting seat (69) is connected to the telescopic end of the lifting cylinder (58), and the shaft end of the steering motor (610) is connected to the rework frame (67).

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