Multifunctional detection tool and detection method for optical module

Abstract

The invention discloses a multifunctional detection tool and detection method for an optical module, and particularly relates to the technical field of optical module test.The multifunctional detection tool comprises a detection machine, a test host, a test module, an optical module and a test board, and the surface of a movable frame is provided with an adjusting mechanism used for conducting appearance detection on the optical module; through the adjusting mechanism, the test host, the test module and the test plate, the industrial camera moves to a preset shooting point right above the optical module, so that appearance detection is performed on the optical module through image acquisition, and the test host provides specified working voltage for the optical module through the test plate, so that circuit test is performed on the optical module. The optical performance of the optical module is tested through the test module, an electric signal and an optical signal are applied to the optical module, response data are collected, and after all tests are completed, the appearance, the circuit and the performance data of the system are integrated, whether a product is qualified or unqualified is automatically judged, so that full-automatic testing of the optical module is achieved.

Description

Technical Field

[0001] This application relates to the field of optical module testing technology, and more specifically, to a multifunctional testing fixture and testing method for optical modules. Background Technology

[0002] An optical module consists of optoelectronic devices, functional circuits, and optical interfaces. The optoelectronic devices include both transmitting and receiving parts. With the rapid development of optical communication technology, the performance and reliability of the optical module, as a core component, directly affect the stability of the entire communication system.

[0003] However, the demand for production and testing of optical modules is growing. Most of the existing testing equipment on the market is single-function. Some high-end equipment can achieve fully automatic testing, but the equipment is expensive, complex to maintain, and has high requirements for the testing environment.

[0004] Therefore, a multifunctional testing fixture and testing method for optical modules are proposed to address the above problems. Summary of the Invention

[0005] The purpose of this application is to provide a multifunctional testing fixture and testing method for optical modules.

[0006] The technical solution provided in this application for a multifunctional testing fixture and method for optical modules is as follows:

[0007] A multifunctional testing fixture for optical modules includes a testing machine, a testing host, a testing module, an optical module, and a testing board. The testing host is located on one side of the testing machine, and the testing module is located on the surface of the testing machine. The testing host cooperates with the testing module. A testing platform is located on the surface of the testing module, and a movable frame is located on the surface of the testing machine. A testing board is located on the top of the testing module. An adjustment mechanism for visual inspection of the optical module is located on the surface of the movable frame. A calibration mechanism for calibrating the optical module is located on the surface of the testing platform. A fixing mechanism for securing the optical module is located on the surface of the testing module.

[0008] Preferably, one end of the test module has a test port, which is used in conjunction with the optical module.

[0009] By adopting the above technical solution, one end of the optical module can be inserted into the test port to perform circuit and performance tests on the optical module.

[0010] Preferably, the adjustment mechanism includes a fixed frame, a first drive motor, a connecting rod, a connecting frame, and an industrial camera. The surface of the movable frame is connected to the fixed frame via a linear guide rail. The first drive motor is fixedly connected inside the fixed frame, and a connecting rod is fixedly connected to one end of the first drive motor.

[0011] Preferably, one end of the connecting rod is fixedly connected to a connecting frame, and an industrial camera is fixedly connected inside the connecting frame.

[0012] By adopting the above technical solution, when the connecting rod rotates, it can drive the industrial camera to rotate through the connecting frame, so as to adjust the angle of the industrial camera and move the industrial camera to the preset shooting point directly above the optical module, so as to perform appearance inspection of the optical module through image acquisition.

[0013] Preferably, the calibration mechanism includes a slide groove, a second drive motor, a threaded rod, a slider, a calibration rod, and a limiting groove. The surface of the test platform is provided with a slide groove, and the interior of the test platform is fixedly connected to a second drive motor. One end of the second drive motor is fixedly connected to a threaded rod, and one end of the threaded rod is rotatably connected to the test platform.

[0014] Preferably, the surface of the threaded rod is threaded with two sets of sliders, the sliders cooperate with the slide grooves, and the surfaces of the two sets of sliders are fixedly connected with a calibration rod. One end of the test module is provided with two sets of limiting grooves, the limiting grooves cooperate with one end of the calibration rod.

[0015] By adopting the above technical solution, when the threaded rod rotates, it can drive the two sets of sliders to move left and right, so that the two sets of sliders can drive the correction rod to move inward at the same time, so as to correct the optical module.

[0016] Preferably, one side of each of the two sets of correction rods is provided with multiple sets of rubber strips.

[0017] Preferably, a first electric push rod is fixedly connected to the top of the test module, a connecting plate is fixedly connected to one end of the first electric push rod, a fixing block is fixedly connected to one end of the connecting plate, and a rubber pad is fixedly connected to one end of the fixing block.

[0018] By adopting the above technical solution, starting the first electric push rod can drive the fixing block to move downward through the connecting plate, so that the fixing block can fix the optical module through the rubber pad.

[0019] Preferably, the top of the test platform is provided with a groove, and a second electric push rod is fixedly connected to one side of the top of the test platform.

[0020] Preferably, the detection method includes the following steps:

[0021] Step 1: Power on the test host, start the test software, and the industrial camera and test module will perform self-tests and reset to their initial positions;

[0022] Step 2: The operator places the optical module in the groove on the surface of the test bench and uses the calibration mechanism to calibrate the optical module so that it is aligned with the test port.

[0023] Step 3: Activate the second electric push rod to push the optical module so that one end of the optical module is inserted into the test port, and fix it in place by the fixing mechanism;

[0024] Step 4: Adjust the position of the industrial camera using the moving frame and adjust the angle of the industrial camera using the adjustment mechanism, so that the industrial camera moves to the preset shooting point directly above the optical module, so as to perform appearance inspection of the optical module through image acquisition;

[0025] Step 5: The test host provides the specified operating voltage to the optical module through the test board and attempts to access the digital diagnostic unit of the optical module through communication protocols such as IC and MDC / MDIO to perform circuit testing on the optical module. Then, the optical performance of the optical module is tested through the test module. Electrical and optical signals are applied to the optical module and response data is collected. After all tests are completed, the system integrates the appearance, circuit, and performance data to automatically determine whether the product is "qualified" or "unqualified" and generates a test report through the test host.

[0026] The technical effects and advantages of this application are as follows:

[0027] Compared with existing technologies, this multifunctional testing fixture and method for optical modules, through an adjustment mechanism, a testing host, a testing module, and a testing board, enables the first drive motor to rotate the connecting rod. The rotation of the connecting rod, via a connecting frame, rotates the industrial camera, allowing for angle adjustment so that the camera moves to a preset shooting point directly above the optical module. This facilitates visual inspection of the optical module through image acquisition. The testing host provides a specified operating voltage to the optical module through the testing board and attempts to access the digital diagnostic unit of the optical module via communication protocols such as I2C and MDC / MDIO for circuit testing. The testing module then performs optical performance testing, applying electrical and optical signals and collecting response data. After all tests are completed, the system integrates the appearance, circuit, and performance data to automatically determine whether the product is "qualified" or "unqualified," and generates a test report through the testing host, thus achieving fully automated testing of the optical module. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this application;

[0029] Figure 2 This is a schematic diagram of the cooperation structure between the testing machine and the testing host in this application;

[0030] Figure 3 This is a schematic diagram of the regulating mechanism of this application;

[0031] Figure 4 This is a schematic diagram of the connection frame and the industrial camera used in this application.

[0032] Figure 5 This is a schematic diagram of the fixing mechanism of this application;

[0033] Figure 6 This is a schematic diagram of the correction mechanism in this application;

[0034] Figure 7 This is a schematic diagram of the structure of the optical module and the second electric push rod in this application.

[0035] The attached figures are labeled as follows: 1. Testing machine; 2. Testing host; 3. Testing module; 4. Testing table; 5. Moving frame; 6. Adjustment mechanism; 601. Fixed frame; 602. First drive motor; 603. Connecting rod; 604. Connecting frame; 605. Industrial camera; 7. Groove; 8. Correction mechanism; 801. Slide groove; 802. Second drive motor; 803. Threaded rod; 804. Slider; 805. Correction rod; 806. Limiting groove; 9. Fixing mechanism; 901. First electric push rod; 902. Connecting plate; 903. Fixing block; 904. Rubber pad; 10. Testing port; 11. Optical module; 12. Second electric push rod; 13. Testing plate. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] Example 1

[0038] like Figures 1 to 7 The multifunctional testing fixture for optical modules shown includes a testing machine 1, a testing host 2, a testing module 3, an optical module 11, and a testing board 13. The testing host 2 is located on one side of the testing machine 1, and the testing module 3 is located on the surface of the testing machine 1. The testing host 2 cooperates with the testing module 3. The testing platform 4 is located on the surface of the testing module 3, and the moving frame 5 is located on the surface of the testing machine 1. The testing board 13 is located on the top of the testing module 3. The moving frame 5 is provided with an adjustment mechanism 6 for visual inspection of the optical module 11, which can adjust the angle of the industrial camera 605 to perform visual inspection of the optical module 11. The testing platform 4 is provided with a correction mechanism 8 for calibrating the optical module 11 to adjust it to a suitable position. The testing module 3 is provided with a fixing mechanism 9 for fixing the optical module 11 to prevent it from moving during testing.

[0039] In a preferred embodiment, one end of the test module 3 is provided with a test port 10, which cooperates with the optical module 11 so that one end of the optical module 11 can be inserted into the test port 10 for circuit and performance testing of the optical module 11.

[0040] In a preferred embodiment, the adjustment mechanism 6 includes a fixed frame 601, a first drive motor 602, a connecting rod 603, a connecting frame 604, and an industrial camera 605. The surface of the movable frame 5 is connected to the fixed frame 601 via a linear guide rail. The first drive motor 602 is fixedly connected inside the fixed frame 601. One end of the first drive motor 602 is fixedly connected to the connecting rod 603. Starting the first drive motor 602 can drive the connecting rod 603 to rotate.

[0041] In a preferred embodiment, one end of the connecting rod 603 is fixedly connected to a connecting frame 604, and an industrial camera 605 is fixedly connected inside the connecting frame 604. When the connecting rod 603 rotates, the industrial camera 605 can be rotated through the connecting frame 604 so as to adjust the angle of the industrial camera 605 and move the industrial camera 605 to a preset shooting point directly above the optical module 11 so as to perform appearance inspection of the optical module 11 through image acquisition.

[0042] In a preferred embodiment, the calibration mechanism 8 includes a slide groove 801, a second drive motor 802, a threaded rod 803, a slider 804, a calibration rod 805, and a limiting groove 806. The surface of the test platform 4 is provided with a slide groove 801. The second drive motor 802 is fixedly connected inside the test platform 4. One end of the second drive motor 802 is fixedly connected to the threaded rod 803. One end of the threaded rod 803 is rotatably connected to the test platform 4. Starting the second drive motor 802 can drive the threaded rod 803 to rotate.

[0043] In a preferred embodiment, the surface of the threaded rod 803 is threadedly connected to two sets of sliders 804. The sliders 804 cooperate with the slide groove 801. The surfaces of the two sets of sliders 804 are fixedly connected to a correction rod 805. One end of the test module 3 is provided with two sets of limiting grooves 806. The limiting grooves 806 cooperate with one end of the correction rod 805. When the threaded rod 803 rotates, it can drive the two sets of sliders 804 to move left and right, so that the two sets of sliders 804 drive the correction rod 805 to move inward at the same time, so as to correct the optical module 11.

[0044] As a preferred embodiment, multiple rubber strips are provided on one side of the two sets of calibration rods 805 to prevent the calibration rods 805 from damaging the appearance of the optical module 11 when calibrating it.

[0045] In a preferred embodiment, a first electric push rod 901 is fixedly connected to the top of the test module 3. A connecting plate 902 is fixedly connected to one end of the first electric push rod 901. A fixing block 903 is fixedly connected to one end of the connecting plate 902. A rubber pad 904 is fixedly connected to one end of the fixing block 903. When the first electric push rod 901 is activated, the fixing block 903 can be moved downward through the connecting plate 902, so that the fixing block 903 can fix the optical module 11 through the rubber pad 904.

[0046] In a preferred embodiment, the top of the test platform 4 is provided with a groove 7, and the optical module 11 is placed in the groove 7. The groove 7 can limit the optical module 11 so that it will not slip off the test platform 4. A second electric push rod 12 is fixedly connected to one side of the top of the test platform 4. When the second electric push rod 12 is activated, it pushes the optical module 11 so that one end of the optical module 11 is inserted into the test port 10.

[0047] As a preferred embodiment, the detection method includes the following steps:

[0048] Step 1: Power on the test host 2, start the test software, and the industrial camera 605 and test module 3 will perform self-tests and reset to their initial positions;

[0049] Step 2: The operator places the optical module 11 in the groove 7 on the surface of the test bench 4 and calibrates the optical module 11 through the calibration mechanism 8 so that the optical module 11 is facing the test port 10.

[0050] Step 3: Activate the second electric push rod 12 to push the optical module 11, so that one end of the optical module 11 is inserted into the test port 10, and is fixed by the fixing mechanism 9;

[0051] Step 4: Adjust the position of the industrial camera 605 using the movable frame 5, and adjust the angle of the industrial camera 605 using the adjustment mechanism 6, so that the industrial camera 605 moves to the preset shooting point directly above the optical module 11, so as to perform appearance inspection of the optical module 11 through image acquisition.

[0052] Step 5: The test host 2 provides the specified operating voltage to the optical module 11 through the test board 13, and attempts to access the digital diagnostic unit of the optical module 11 through communication protocols such as I2C and MDC / MDIO to perform circuit testing on the optical module 11. Then, the optical performance of the optical module 11 is tested through the test module 3. Electrical and optical signals are applied to the optical module 11 and response data is collected. After all tests are completed, the system integrates the appearance, circuit, and performance data to automatically determine whether the product is "qualified" or "unqualified", and generates a test report through the test host 2.

[0053] The working process of this application is as follows: The test host 2 is powered on, the test software is started, the industrial camera 605 and the test module 3 perform self-tests and reset to their initial positions. The operator places the optical module 11 in the groove 7 opened on the surface of the test table 4. The second drive motor 802 is started, which drives the threaded rod 803 to rotate. When the threaded rod 803 rotates, it drives the two sets of sliders 804 to move left and right, so that the two sets of sliders 804 drive the correction rod 805 to move inward at the same time, so as to correct the optical module 11. Then, the second electric push rod 12 is started to push the optical module 11, so that one end of the optical module 11 is inserted into the test port 10. The first electric push rod 901 is started, which drives the fixing block 903 to move downward through the connecting plate 902, so that the fixing block 903 can fix the optical module 11 through the rubber pad 904. The first drive motor 602 is started, which drives the connecting rod 603 to rotate. When the connecting rod 603 rotates, it drives the connection rod 603 to rotate. The connecting bracket 604 can drive the industrial camera 605 to rotate, so as to adjust the angle of the industrial camera 605 and move the industrial camera 605 to the preset shooting point directly above the optical module 11, so as to perform appearance inspection of the optical module 11 through image acquisition. The test host 2 provides the specified working voltage to the optical module 11 through the test board 13 and attempts to access the digital diagnostic unit of the optical module 11 through communication protocols such as I2C, MDC / MDIO, etc., so as to perform circuit testing on the optical module 11. Then, the optical performance test is performed on the optical module 11 through the test module 3. Electrical and optical signals are applied to the optical module 11 and response data is collected. After all tests are completed, the system integrates appearance, circuit, and performance data to automatically determine whether the product is "qualified" or "unqualified" and generates a test report through the test host 2. The above is the working principle of this multi-functional testing fixture and testing method for optical modules.

Claims

1. A multifunctional testing fixture for optical modules, comprising a testing machine (1), a testing host (2), a testing module (3), an optical module (11), and a testing board (13), wherein the testing host (2) is provided on one side of the testing machine (1), the testing module (3) is provided on the surface of the testing machine (1), the testing host (2) cooperates with the testing module (3), the testing platform (4) is provided on the surface of the testing module (3), the moving frame (5) is provided on the surface of the testing machine (1), and the testing board (13) is provided on the top of the testing module (3), characterized in that: The surface of the mobile frame (5) is provided with an adjustment mechanism (6) for visual inspection of the optical module (11), the surface of the test platform (4) is provided with a calibration mechanism (8) for calibrating the optical module (11), and the surface of the test module (3) is provided with a fixing mechanism (9) for fixing the optical module (11).

2. The multifunctional testing fixture for optical modules according to claim 1, characterized in that: The test module (3) has a test port (10) at one end, which is used in conjunction with the optical module (11).

3. The multifunctional testing fixture for optical modules according to claim 1, characterized in that: The adjustment mechanism (6) includes a fixed frame (601), a first drive motor (602), a connecting rod (603), a connecting frame (604), and an industrial camera (605). The surface of the movable frame (5) is connected to the fixed frame (601) via a linear guide rail. The first drive motor (602) is fixedly connected inside the fixed frame (601), and a connecting rod (603) is fixedly connected to one end of the first drive motor (602).

4. The multifunctional testing fixture for optical modules according to claim 3, characterized in that: One end of the connecting rod (603) is fixedly connected to a connecting frame (604), and an industrial camera (605) is fixedly connected inside the connecting frame (604).

5. The multifunctional testing fixture for optical modules according to claim 1, characterized in that: The calibration mechanism (8) includes a slide groove (801), a second drive motor (802), a threaded rod (803), a slider (804), a calibration rod (805), and a limiting groove (806). The surface of the test platform (4) is provided with a slide groove (801). The second drive motor (802) is fixedly connected inside the test platform (4). One end of the second drive motor (802) is fixedly connected to a threaded rod (803). One end of the threaded rod (803) is rotatably connected to the test platform (4).

6. The multifunctional testing fixture for an optical module according to claim 5, characterized in that: The threaded rod (803) has two sets of sliders (804) threadedly connected to its surface. The sliders (804) cooperate with the slide groove (801). The surfaces of the two sets of sliders (804) are fixedly connected with a correction rod (805). One end of the test module (3) is provided with two sets of limiting grooves (806). The limiting grooves (806) cooperate with one end of the correction rod (805).

7. The multifunctional testing fixture for an optical module according to claim 6, characterized in that: Multiple rubber strips are provided on one side of the two sets of correction rods (805).

8. The multifunctional testing fixture for optical modules according to claim 1, characterized in that: The top of the test module (3) is fixedly connected to a first electric push rod (901), one end of the first electric push rod (901) is fixedly connected to a connecting plate (902), one end of the connecting plate (902) is fixedly connected to a fixing block (903), and one end of the fixing block (903) is fixedly connected to a rubber pad (904).

9. The multifunctional testing fixture for optical modules according to claim 1, characterized in that: The test platform (4) has a groove (7) on its top and a second electric push rod (12) is fixedly connected to one side of the top of the test platform (4).

10. A testing method for a multifunctional testing fixture for optical modules, using the multifunctional testing fixture for optical modules as described in any one of claims 1-9, characterized in that: The detection method includes the following steps: Step 1: Power on the test host (2), start the test software, and the industrial camera (605) and test module (3) perform self-tests and reset to their initial positions; Step 2: The operator places the optical module (11) in the groove (7) on the surface of the test bench (4) and calibrates the optical module (11) by means of the calibration mechanism (8) so that the optical module (11) is facing the test port (10). Step 3: Activate the second electric push rod (12) to push the optical module (11), so that one end of the optical module (11) is inserted into the test port (10) and fixed by the fixing mechanism (9); Step 4: Adjust the position of the industrial camera (605) by using the moving frame (5) and adjust the angle of the industrial camera (605) by using the adjustment mechanism (6) so that the industrial camera (605) moves to the preset shooting point directly above the optical module (11) so as to perform appearance inspection on the optical module (11) through image acquisition; Step 5: The test host (2) provides the specified operating voltage to the optical module (11) through the test board (13), and accesses the digital diagnostic unit of the optical module (11) through the I2C and MDC / MDIO communication protocols to perform circuit testing on the optical module (11). Then, the optical module (11) is tested for optical performance through the test module (3). Electrical and optical signals are applied to the optical module (11), and response data is collected. After all tests are completed, the system integrates the appearance, circuit, and performance data to automatically determine whether the product is "qualified" or "unqualified", and generates a test report through the test host (2).

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