A multi-laser compatible automatic test device

Abstract

This utility model relates to the field of laser testing technology, and more particularly to an automatic testing device compatible with multiple lasers, including a carrier plate, a clamping mechanism, and a testing mechanism. The carrier plate has a testing cavity for placing the laser, and the testing cavity has a testing hole penetrating the carrier plate. The clamping mechanism is located above the testing cavity and is used to clamp the laser. The testing mechanism is located below the carrier plate and is used to extend or retract into the testing hole. This utility model, by setting up a carrier plate, a clamping mechanism, and a testing mechanism, provides a position and testing channel for placing the laser, the clamping mechanism fixes the laser, and the testing mechanism enables electrical connection and disconnection with the laser, thus constructing a complete testing system. It enables the development of a testing device compatible with multiple laser types, solving the problem of traditional testing methods requiring multiple different workstations or test heads / fixtures, simplifying the production process, reducing equipment and fixture procurement costs, and shortening production changeover preparation time.

Description

Technical Field

[0001] This utility model relates to the field of laser testing technology, and in particular to an automatic testing device compatible with multiple lasers. Background Technology

[0002] In fields such as optical communication and optical sensing, laser performance testing is a crucial step in the manufacturing process. Currently, the most common laser packaging forms on the market are TO-packaged lasers and BOX-packaged lasers, which can be further subdivided into TOSA, ROSA, or BOSA devices based on their function. Traditional laser testing methods have many inconveniences. For example, different models (such as TO46 and TO56) or different types (such as TOSA, ROSA, and BOSA) of lasers usually require dedicated testing stations or different test heads / fixtures.

[0003] Furthermore, in practical applications, lasers also require steps such as lead trimming and FPC (flexible printed circuit board) soldering, which further increases the complexity of testing. Existing testing solutions are often incompatible with both lead-trimmed and lead-less lasers, and cannot test lasers with trimmed leads but without FPC soldering, resulting in the need to set up different workstations or fixtures.

[0004] Traditional testing methods require at least six different workstations or six different test heads / fixtures to test lasers with different TO packages and their various states. This not only increases the procurement costs of equipment and fixtures but also extends the preparation time for production changeovers. Therefore, developing a testing device that is compatible with multiple laser types, simplifies the production process, and reduces costs is a pressing technical problem facing the industry, and thus, improvements are necessary. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an automated testing device compatible with multiple lasers. This device comprises a carrier plate, a clamping mechanism, and a testing mechanism. The carrier plate provides the position for placing the laser and the testing channel; the clamping mechanism secures the laser; and the testing mechanism enables electrical connection and disconnection with the laser, thus constructing a complete testing system. This invention enables the development of a testing device compatible with multiple laser types, solving the problem of traditional testing methods requiring multiple workstations or test heads / fixtures, simplifying the production process, reducing equipment and fixture procurement costs, and shortening production changeover preparation time.

[0006] To achieve the above objectives, this utility model provides an automatic testing device compatible with multiple lasers, comprising a carrier plate, a clamping mechanism, and a testing mechanism.

[0007] The carrier plate is provided with a test cavity for placing a laser, and the test cavity is provided with a test hole penetrating the carrier plate;

[0008] The clamping mechanism is disposed above the test cavity and is used to clamp the laser;

[0009] The testing mechanism is located below the carrier plate and is used to extend out of the testing hole to electrically connect with the laser or retract into the testing hole to disconnect from the laser.

[0010] Preferably, the clamping mechanism includes a clamping driver, a left chuck, and a right chuck;

[0011] The left clamp and the right clamp are respectively disposed on the outside of the test cavity;

[0012] The clamping driver is fixed to the carrier plate and is used to drive the left and right chucks to move closer or further apart.

[0013] Preferably, both the left clamp and the right clamp include a fixing part and a clamping part, and the fixing part and the clamping part are integrally formed;

[0014] The fixing part is provided with a fixing groove that is connected to the clamping driver;

[0015] The clamping part is used to clamp the laser.

[0016] Preferably, a clearance portion is provided between the fixing portion and the clamping portion, the clearance portion being used to avoid the laser.

[0017] Preferably, the testing mechanism includes a needle plate, a needle sleeve, a test probe, and a test lifting driver;

[0018] The needle sleeve is fixed to the needle plate;

[0019] The test probe is fixed to the needle sleeve;

[0020] The test lifting driver is used to drive the needle plate to rise and fall.

[0021] Preferably, it further includes a control mechanism for controlling the test mechanism, the control mechanism including a control valve for controlling the test lifting drive and a control circuit for connecting to mains power;

[0022] One end of the control valve is connected to the test lifting drive, and the other end of the control valve is connected to an external pneumatic device;

[0023] The control circuit is electrically connected to the control valve and is used to control the operation of the control valve.

[0024] Preferably, the four edges of the carrier plate are respectively connected to a front baffle, a rear baffle, a left baffle, and a right baffle;

[0025] The front baffle, rear baffle, left baffle, and right baffle form an accommodating space, which is used to protect the testing mechanism and the control mechanism.

[0026] Preferably, both the front baffle and the rear baffle are provided with a connection port that communicates with the accommodating space.

[0027] Preferably, a base plate is provided below the carrier plate, and the base plate is connected to the front baffle, the rear baffle, the left baffle and the right baffle to seal the accommodating space;

[0028] Both the testing mechanism and the control mechanism are fixed to the base plate.

[0029] Preferably, the test cavity is provided with an embedding part for connection with a laser and a test part for testing;

[0030] The test section is disposed on one side of the embedded section;

[0031] The test hole is located in the test section.

[0032] The beneficial effects of this invention are as follows: By setting up a carrier plate, a clamping mechanism, and a testing mechanism, the carrier plate provides the position for placing the laser and the testing channel, the clamping mechanism fixes the laser, and the testing mechanism realizes the electrical connection and disconnection with the laser, thus constructing a complete testing system. It enables the development of a testing device compatible with multiple laser types, solving the problem of traditional testing methods requiring multiple different workstations or test heads / fixtures, simplifying the production process, reducing equipment and fixture procurement costs, and shortening production changeover preparation time. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of this utility model.

[0034] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model.

[0035] Figure 3 This is a schematic diagram of the structure of the testing mechanism of this utility model.

[0036] Figure 4 This is a schematic diagram of the exploded structure of this utility model.

[0037] The reference numerals in the figures include:

[0038] 1. Carrier plate; 11. Test chamber; 12. Test hole; 111. Embedding part; 112. Test part; 13. Front baffle; 14. Rear baffle; 15. Left baffle; 16. Right baffle; 17. Connecting port; 18. Base plate;

[0039] 2. Clamping mechanism; 21. Clamping driver; 22. Left chuck; 23. Right chuck; 24. Fixing part; 25. Clamping part; 26. Fixing groove; 27. Clearance part;

[0040] 3. Testing mechanism; 31. Needle plate; 32. Needle sleeve; 33. Test probe; 34. Test lifting driver;

[0041] 4. Control mechanism; 41. Control valve; 42. Control circuit. Detailed Implementation

[0042] The present invention will now be described in detail with reference to the accompanying drawings.

[0043] like Figures 1 to 4 As shown, this utility model provides an automatic testing device compatible with multiple lasers, including a carrier plate 1, a clamping mechanism 2, and a testing mechanism 3.

[0044] The carrier plate 1 is provided with a test cavity 11 for placing the laser, and a test hole 12 is provided inside the test cavity 11 that penetrates the carrier plate 1; the test cavity 11 provides a space for placing the laser, and the test hole 12 provides a channel for the electrical connection between the test mechanism 3 and the laser.

[0045] The clamping mechanism 2 is located above the test cavity 11 and is used to clamp the laser. The clamping mechanism 2 fixes the laser placed in the test cavity 11, ensuring the stability of the laser during the test process, avoiding the impact of laser movement on the test results, and can adapt to clamping different models and types of lasers, thus enhancing the compatibility of the device.

[0046] The testing mechanism 3 is located below the carrier plate 1 and is used to extend out of the testing hole 12 to electrically connect with the laser or retract into the testing hole 12 to disconnect from the laser. The testing mechanism 3 can extend out of the testing hole 12 to electrically connect with the laser, and retract into the testing hole 12 to disconnect from the laser after the test is completed. This allows for testing of lasers in different states (such as uncut leads, cut leads, cut leads but no FPC soldering, cut leads and soldered FPC, etc.) without changing different testing heads / fixtures, further simplifying the testing process, improving testing efficiency, and reducing costs.

[0047] During operation, the laser under test is first placed in the test cavity 11 of the carrier plate 1. The placement space limits the laser under test, ensuring that the scissor leads of the laser under test are aligned with the test hole 12. The clamping mechanism 2 then activates, firmly clamping the placed laser to ensure its position remains fixed during subsequent testing. The testing mechanism 3 extends and establishes an electrical connection with the laser through the test hole 12, initiating various performance tests on the laser. After testing is completed, the testing mechanism 3 retracts into the test hole 12, disconnecting the electrical connection from the laser. The entire testing process eliminates the need to change different test heads or fixtures based on the different models, types, and states of the laser, greatly simplifying the production process, reducing the procurement costs of equipment and fixtures, and shortening the preparation time for production changeovers.

[0048] like Figure 1 and Figure 2 As shown, the clamping mechanism 2 in this embodiment includes a clamping driver 21, a left clamp 22, and a right clamp 23;

[0049] The left clamp 22 and the right clamp 23 are respectively located on the outside of the test chamber 11; the clamping driver 21 is fixed to the carrier plate 1 and is used to drive the left clamp 22 and the right clamp 23 to move closer or further apart.

[0050] This allows the left clamp 22 and right clamp 23 to be operated from both sides of the laser. Under the action of the clamping driver 21, relative movement is achieved. When the left clamp 22 and right clamp 23 are close together, the laser placed in the test cavity 11 is securely clamped, ensuring the laser's stable position during testing and preventing fluctuations from affecting the test results. When the left clamp 22 and right clamp 23 are far apart, the laser can be released, facilitating laser placement and removal, and adapting to different models and types of lasers, enhancing the device's compatibility.

[0051] like Figure 2 As shown, both the left clamp 22 and the right clamp 23 in this embodiment include a fixing part 24 and a clamping part 25, which are integrally formed. The integral forming design enhances the overall structural strength of the left clamp 22 and the right clamp 23, reduces problems such as loosening and deformation that may occur due to component connection, improves the stability and reliability of clamping, can clamp the laser more firmly, ensure the accuracy of the laser position during the test, and thus improve the accuracy of the test results.

[0052] The fixing part 24 is provided with a fixing groove 26 that connects to the clamping driver 21. The shape and size of the fixing groove 26 match the connection part of the clamping driver 21. By embedding the corresponding parts of the clamping driver 21 into the fixing groove 26 and connecting them to the fixing part 24 with bolts, a stable connection between the left chuck 22, the right chuck 23 and the clamping driver 21 is achieved.

[0053] The clamping part 25 is used to clamp the laser. When the left clamp 22 and the right clamp 23 approach each other, the clamping part 25 can apply a uniform and appropriate clamping force from both sides of the laser to firmly fix the laser in the test cavity 11, preventing the laser from moving or shaking during the test and ensuring the smooth progress of the test. At the same time, it can adapt to different models and types of lasers, enhance the compatibility of the device, and reduce the time and cost consumption caused by changing clamps.

[0054] Preferably, the surface of the clamping part 25 has a certain friction and a suitable shape, which can fit closely to the surface of the laser.

[0055] like Figure 2 As shown, in this embodiment, a clearance portion 27 is provided between the fixing portion 24 and the clamping portion 25. The clearance portion 27 is used to avoid the laser. The clearance portion 27 is a space area specially designed according to the shape and structural characteristics of the laser. The shape and size of the clearance portion 27 are adapted to the parts of the laser that need to be avoided. By leaving such a specific area between the fixing portion 24 and the clamping portion 25, specific parts of the laser can smoothly enter the area without being interfered with by the fixing portion 24 and the clamping portion 25 during placement and clamping. This enhances the compatibility of the clamping mechanism 2 with various lasers, eliminates the need to design special chucks for each laser, reduces the types and number of clamps, and lowers the procurement costs of equipment and clamps.

[0056] like Figure 3 As shown, the test mechanism 3 in this embodiment includes a needle plate 31, a needle sleeve 32, a test probe 33, and a test lifting driver 34;

[0057] The needle sleeve 32 is fixed to the needle plate 31; the needle sleeve 32 provides an installation base and positioning support for the test probe 33. It ensures the accuracy and stability of the position of the test probe 33. During the raising and lowering of the needle plate 31, the needle sleeve 32 can ensure that the test probe 33 is electrically connected to the laser in the predetermined position, which improves the reliability and repeatability of the test and reduces the test error caused by the position deviation of the test probe 33.

[0058] The test probe 33 is fixed to the needle sleeve 32; the test probe 33 can accurately achieve electrical connection with the laser through the needle sleeve 32, ensuring stable transmission of test signals, adapting to the differences in electrical interfaces of different models and types of lasers, enhancing the compatibility of the test mechanism 3 with multiple lasers, and completing the test of different lasers without frequently replacing the test probe 33.

[0059] The test lifting driver 34 is used to drive the needle plate 31 to rise and fall. By controlling the rise and fall of the needle plate 31 through the test lifting driver 34, the connection and disconnection between the test probe 33 and the laser are realized. During testing, the needle plate 31 rises to electrically connect the test probe 33 to the laser for testing; after the test is completed, the needle plate 31 falls to disconnect the test probe 33 from the laser, facilitating the removal, placement, and replacement of the laser. This simplifies the testing process, improves testing efficiency, and reduces errors and damage that may be caused by manual operation, further reducing production costs and changeover preparation time. The test lifting driver 34 can be an electric push rod, a linear module, or a cylinder; this embodiment uses a cylinder as an example.

[0060] like Figure 4 As shown, this embodiment also includes a control mechanism 4 for controlling the test mechanism 3. The control mechanism 4 includes a control valve 41 for controlling the test lifting drive 34 and a control circuit 42 for connecting to the mains power.

[0061] One end of control valve 41 is connected to the test lifting actuator 34, and the other end is connected to an external pneumatic device. Control valve 41 acts as a bridge connecting the test lifting actuator 34 and the external pneumatic device, adjusting the magnitude and direction of the air pressure input from the external pneumatic device to the test lifting actuator 34 by changing its opening degree or state. When control valve 41 is open, gas from the external pneumatic device can enter the test lifting actuator 34, driving it to move up and down. When control valve 41 is closed or its opening degree is adjusted, the flow rate and pressure of the gas can be controlled, thereby precisely controlling the movement speed and position of the test lifting actuator 34, achieving smooth and precise lifting motion. Control valve 41 can be an electromagnetic directional valve or a proportional pressure control valve; in this embodiment, an electromagnetic directional valve is used as an example.

[0062] Control circuit 42 is electrically connected to control valve 41 and is used to control the operation of control valve 41. Control circuit 42 communicates with control valve 41 via electrical signals, sending corresponding control signals to control valve 41 according to a preset program or externally input instructions. These signals can control the opening, closing, and opening degree adjustment of control valve 41, thereby achieving precise control of test lifting drive 34. Control circuit 42 typically includes a signal processing module, a control algorithm module, and a drive module, capable of processing and analyzing input signals and outputting appropriate control signals according to the control strategy. This enables control circuit 42 to quickly and accurately control the working state of control valve 41, achieving real-time and precise control of test lifting drive 34. Control circuit 42 is a programmable logic controller (PLC) module or a microcontroller control module; in this embodiment, a programmable logic controller (PLC) module is used as an example.

[0063] like Figure 4 As shown, in this embodiment, the four edges of the carrier plate 1 are respectively connected to the front baffle 13, the rear baffle 14, the left baffle 15 and the right baffle 16.

[0064] The front baffle 13, rear baffle 14, left baffle 15, and right baffle 16 form an enclosure space to protect the testing mechanism 3 and the control mechanism 4. These baffles work together to create a closed or semi-closed enclosure. The testing mechanism 3 and control mechanism 4 are housed within this enclosure, relatively isolated from the external environment. When dust, moisture, or debris may damage the equipment, the enclosure acts as a barrier and barrier. This enclosure provides a relatively clean and stable working environment for the testing mechanism 3 and control mechanism 4, reducing the possibility of dust and other impurities entering the equipment, lowering the equipment failure rate due to dust accumulation, and extending the equipment's service life.

[0065] like Figure 4 As shown, both the front baffle 13 and the rear baffle 14 in this embodiment are provided with connection ports 17 that connect to the accommodating space. Through the connection ports 17, the completely enclosed state of the accommodating space is broken, allowing a specific channel to be established between the accommodating space and the external space. The connection ports 17 can be designed in different shapes, sizes, and numbers according to actual needs to accommodate different types of external connection components, such as cables and pipes. This facilitates the connection of the testing mechanism 3 and the control mechanism 4 with external equipment.

[0066] like Figure 4 As shown, a base plate 18 is provided below the carrier plate 1 in this embodiment. The base plate 18 is connected to the front baffle 13, the rear baffle 14, the left baffle 15, and the right baffle 16 to seal the accommodating space. By means of welding, bolting, and sealing gaskets, external dust, moisture, debris, etc. are prevented from entering the accommodating space formed by the front baffle 13, the rear baffle 14, the left baffle 15, the right baffle 16, and the carrier plate 1 through the bottom.

[0067] Both the testing mechanism 3 and the control mechanism 4 are fixed to the base plate 18. The base plate 18 serves as a stable support platform, and the testing mechanism 3 and the control mechanism 4 are fixed within the base plate 18 by the cooperation of bolts and screw holes, which improves the installation stability of the testing mechanism 3 and the control mechanism 4 and ensures the positional accuracy of the testing mechanism 3 and the control mechanism 4 during operation.

[0068] like Figure 4As shown, the test cavity 11 in this embodiment is provided with an embedding part 111 for connecting to a laser and a test part 112 for testing. The embedding part 111 is a specially designed structural part on the test cavity 11, and its shape, size, and other parameters are customized according to the shape of the laser and the connection requirements. By embedding the laser into the specially designed embedding part 111, and utilizing the physical fit between the embedding part 111 and the laser, such as the cooperation of a slot and a buckle, or a threaded connection, a stable connection between the laser and the test cavity 11 is achieved. This allows the laser to quickly and accurately dock with the test cavity 11, greatly simplifying the connection process and improving installation efficiency. At the same time, the stable connection method ensures that the laser will not be displaced due to vibration, shaking, or other factors during the test, ensuring the stability and reliability of the test.

[0069] The testing section 112 is located on one side of the embedding section 111; this allows the laser to be tested naturally within the effective range of the testing section 112 after it is embedded in the testing cavity 11, enabling direct testing without complex adjustments or additional operations to the laser. This optimizes the spatial layout of the test, reduces the number of steps and time required during the testing process, and improves testing efficiency.

[0070] Test hole 12 is provided in test section 112. Test hole 12 provides a precise channel for testing the laser, enabling test mechanism 3 to be accurately electrically connected to the laser, thus ensuring the accuracy and reliability of the test results.

[0071] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An automatic testing device compatible with multiple lasers, characterized in that, It includes a carrier plate (1), a clamping mechanism (2), and a testing mechanism (3); The carrier plate (1) is provided with a test cavity (11) for placing a laser, and a test hole (12) penetrating the carrier plate (1) is provided in the test cavity (11). The clamping mechanism (2) is disposed above the test cavity (11) and is used to clamp the laser; The test mechanism (3) is located below the carrier plate (1) and is used to extend out of the test hole (12) to be electrically connected to the laser or to retract into the test hole (12) to disconnect from the laser.

2. The automatic testing device compatible with multiple lasers according to claim 1, characterized in that, The clamping mechanism (2) includes a clamping driver (21), a left clamp (22) and a right clamp (23); The left clamp (22) and the right clamp (23) are respectively disposed on the outside of the test cavity (11); The clamping driver (21) is fixed to the carrier plate (1) and is used to drive the left clamp (22) and the right clamp (23) to move closer or further apart from each other.

3. The automatic testing device compatible with multiple lasers according to claim 2, characterized in that, The left clamp (22) and the right clamp (23) both include a fixing part (24) and a clamping part (25), which are integrally formed; The fixing part (24) is provided with a fixing groove (26) that is connected to the clamping driver (21). The clamping part (25) is used to clamp the laser.

4. The automatic testing device compatible with multiple lasers according to claim 3, characterized in that, A clearance part (27) is provided between the fixing part (24) and the clamping part (25), and the clearance part (27) is used to avoid the laser.

5. The automatic testing device compatible with multiple lasers according to claim 1, characterized in that, The testing mechanism (3) includes a needle plate (31), a needle sleeve (32), a test probe (33), and a test lifting driver (34). The needle sleeve (32) is fixed to the needle plate (31); The test probe (33) is fixed to the needle sleeve (32); The test lifting driver (34) is used to drive the needle plate (31) to lift.

6. The automatic testing device compatible with multiple lasers according to claim 5, characterized in that, It also includes a control mechanism (4) for controlling the test mechanism (3), the control mechanism (4) including a control valve (41) for controlling the test lifting drive (34) and a control circuit (42) for connecting to the mains power. One end of the control valve (41) is connected to the test lifting drive (34), and the other end of the control valve (41) is connected to an external pneumatic device; The control circuit (42) is electrically connected to the control valve (41) and is used to control the operation of the control valve (41).

7. The automatic testing device compatible with multiple lasers according to claim 6, characterized in that, The four edges of the carrier plate (1) are respectively connected to a front baffle (13), a rear baffle (14), a left baffle (15) and a right baffle (16). The front baffle (13), rear baffle (14), left baffle (15) and right baffle (16) form an accommodating space, which is used to protect the test mechanism (3) and the control mechanism (4).

8. The automatic testing device compatible with multiple lasers according to claim 7, characterized in that, Both the front baffle (13) and the rear baffle (14) are provided with a connection port (17) that connects to the accommodating space.

9. An automatic testing device compatible with multiple lasers according to claim 7 or 8, characterized in that, A base plate (18) is provided below the carrier plate (1). The base plate (18) is connected to the front baffle (13), the rear baffle (14), the left baffle (15) and the right baffle (16) to seal the accommodating space. The testing mechanism (3) and the control mechanism (4) are both fixed to the base plate (18).

10. The automatic testing device compatible with multiple lasers according to claim 1, characterized in that, The test cavity (11) is provided with an embedding part (111) for connecting to a laser and a test part (112) for testing. The test section (112) is disposed on one side of the embedded section (111); The test hole (12) is provided on the test section (112).

Images