A welding, testing and aging integrated fixture and application thereof

Abstract

The present application relates to a kind of welding, test, ageing integrated fixture and its application, belong to the technical field of semiconductor laser.The fixture includes test disc, welding boss, press mounting disc and series copper block, wherein, test disc is evenly distributed and is provided with welding boss around, press mounting disc one side is provided with series copper block around, press mounting disc other side is provided with press line spring around, press line spring is connected to series copper block through, and press spring position corresponds welding boss.The present application is applicable to the clamping of semiconductor laser welding, test, ageing stage, can take multiple semiconductor lasers simultaneously, improve production efficiency, reduce manual operation step, save human resources.

Description

Technical Field

[0001] This invention relates to an integrated fixture for welding, testing, and aging, and its application, belonging to the field of semiconductor laser technology. Background Technology

[0002] Currently, semiconductor lasers are widely used in laser communication, optical storage, laser beauty, laser lighting, and radar. Semiconductor laser production has high requirements and complex steps, involving assembly, welding, testing, and aging, each step being crucial. However, in existing production processes, changing production stages requires replacing different fixtures, resulting in low production efficiency, high labor costs, and wasted manpower.

[0003] Chinese patent document CN111896229A discloses a high-efficiency and precise alignment semiconductor laser test fixture and testing method, including a base, a coarse rotating shaft, and an industrial camera imaging module. A display panel is fixedly connected to the upper end of the base, and the coarse rotating shaft is fixedly connected to the upper end of the display panel. A fine rotating shaft is rotatably connected to the upper end of the coarse rotating shaft, and a rotating handle is fixedly connected to the upper end of the fine rotating shaft. An anti-slip sleeve is provided on the surface of the rotating handle. Several electric push rods are fixedly connected to the side of the fine rotating shaft. An inner clamp is fixedly connected to the top of each electric push rod. The inner clamp and the outer clamp are fixedly connected by a second electric push rod, which is positioned between the inner clamp and the outer clamp. This fixture can be used with different types of lasers, but it is not suitable for all stages of laser production. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an integrated fixture for welding, testing, and aging, suitable for clamping semiconductor lasers during the welding, testing, and aging stages. It can simultaneously clamp multiple semiconductor lasers, improving production efficiency, reducing manual operation steps, and saving human resources.

[0005] The present invention also provides applications of the above-mentioned integrated welding, testing and aging fixture.

[0006] The technical solution of the present invention is as follows:

[0007] An integrated fixture for welding, testing, and aging includes a test plate, welding bosses, a pressure plate, and series copper blocks. The welding bosses are evenly distributed around the test plate, the series copper blocks are arranged around one side of the pressure plate, and a pressure spring is arranged around the other side of the pressure plate. The pressure spring is connected through the series copper blocks, and the position of the pressure spring corresponds to the welding boss.

[0008] Preferably, the welding boss includes a U-shaped platform with its opening facing the center of the test plate. A connecting beam is provided on the U-shaped platform, and a spring pressure plate is provided on the connecting beam. A semiconductor laser is placed on the U-shaped platform and positioned by pressure plate.

[0009] Preferably, at least one welding boss is provided, and the specific number can be determined according to actual needs, thereby improving efficiency by completing the testing of multiple lasers at once.

[0010] Preferably, both the test tray and the pressing tray are circular, with the test tray made of aluminum and the pressing tray made of plastic.

[0011] Preferably, the test plate has a through-hole threaded post at its center, and the pressure plate has a screw valve at its center. The test plate and the pressure plate are connected by the screw valve threadedly connecting to the through-hole threaded post.

[0012] Preferably, the fixture also includes an aging test mechanism, which includes a hollow cylinder with one end open, an aluminum circular water-cooled plate at the bottom of the hollow cylinder, a sealing column at the center of the aluminum circular water-cooled plate, light-absorbing heat sinks on the side wall of the hollow cylinder, and a water-cooling channel inside the hollow cylinder.

[0013] When the above-mentioned integrated welding, testing, and aging fixture is used for welding, the operating steps are as follows:

[0014] (1) Open the spring plate, put in the semiconductor laser, then put down the spring plate and press the semiconductor laser. The positive electrode copper sheet and the negative electrode copper sheet are placed at the opening end of the U-shaped platform respectively, and the positive electrode copper sheet and the negative electrode copper sheet are attached to the semiconductor laser.

[0015] (2) Solder is placed at the connection points between the positive electrode copper sheet and the negative electrode copper sheet and the semiconductor laser;

[0016] (3) Place the test plate into the heating furnace. The solder melts when heated, thus achieving the welding of the semiconductor laser with the positive electrode copper sheet and the negative electrode copper sheet.

[0017] When the above-mentioned integrated welding, testing, and aging fixture is used for testing, the operating steps are as follows:

[0018] (1) The welded test plate is hung on the rotating shaft of the test bench;

[0019] (2) Rotate the test disk to select the semiconductor laser to be tested, and then fix the position of the semiconductor laser by inserting the fixing pin;

[0020] (3) Test the current, voltage, wavelength and power of the semiconductor laser on the test bench;

[0021] (4) After the test is completed, pull out the fixing pin and repeat steps (2) and (3) to continue testing the next semiconductor laser until all tests are completed.

[0022] When the above-mentioned integrated welding, testing, and aging fixture is used for aging, the operating steps are as follows:

[0023] (1) After testing, place the pressure plate on the test plate and connect the test plate and the pressure plate by connecting the hollow threaded column of the screw valve threaded connection. The pressure spring is pressed to the positive electrode copper sheet and the negative electrode copper sheet of the semiconductor laser on the U-shaped stage respectively.

[0024] (2) Waterproof sealing rings are placed on the aluminum circular water-cooled plate and the sealing column respectively. The test plate is threaded to the sealing column. The test plate is equipped with connecting screws to fix the position of the test plate and the aluminum circular water-cooled plate.

[0025] (3) Water is circulated in the aging test chamber, and the copper blocks in series are connected to the power supply through the positive and negative wires respectively to carry out aging.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. This invention is applicable to the clamping of semiconductor lasers during the welding, testing, and aging stages. It can clamp multiple semiconductor lasers at once, improving production efficiency, reducing manual operation steps, and saving human resources.

[0028] 2. Waterproof sealing rings are placed on the aluminum circular water-cooled plate and the sealing column of the present invention to prevent water leakage.

[0029] 3. The present invention has a simple structure, is easy to use, and can be quickly applied to production. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the installation of the present invention during testing;

[0032] Figure 3 This is a schematic diagram of the installation of the present invention during aging;

[0033] The components include: 1. Positive electrode wire; 2. Negative electrode wire; 3. Series copper block; 4. Screw valve; 5. Pressing plate; 6. Wire pressing spring; 7. Test plate; 8. Spring pressure plate; 9. Welding boss; 10. Connecting screw; 11. Semiconductor laser; 12. Waterproof sealing ring; 13. Waterproof sealing ring; 14. Light-absorbing heat sink; 15. Water inlet; 16. Water outlet; 17. Aluminum circular water-cooling plate; 18. Shaft; 19. Fixing nail; 20. Test platform. Detailed Implementation

[0034] The present invention will be further described below with reference to the embodiments and accompanying drawings, but is not limited thereto.

[0035] Example 1:

[0036] like Figure 1-3 As shown, the present invention provides an integrated fixture for welding, testing and aging, including a test plate 7, welding bosses 9, a pressure plate 5 and series copper blocks 3. The welding bosses 9 are evenly distributed around the test plate 7. The series copper blocks 3 are arranged around one side of the pressure plate 5 and a pressure spring 6 is arranged around the other side of the pressure plate 5. The pressure spring 6 is connected through to the series copper blocks 3 and the position of the pressure spring 6 corresponds to the welding bosses 9.

[0037] The welding boss 9 includes a U-shaped platform with its opening facing the center of the test plate 7. A connecting beam is provided on the U-shaped platform, and a spring pressure plate 8 is provided on the connecting beam. A semiconductor laser is placed on the U-shaped platform and is positioned by pressure using the spring pressure plate.

[0038] There are 8 welding bosses 9.

[0039] Both test disc 7 and pressing disc 5 are circular discs. The test disc is made of aluminum, and the pressing disc is made of plastic.

[0040] The test plate 7 has a through hollow threaded post in the center, and the press plate 5 has a screw valve 4 in the center. The test plate 7 and the press plate 5 are connected by the screw valve 4 through the threaded connection of the hollow threaded post.

[0041] When the above-mentioned integrated welding, testing, and aging fixture is used for welding, the operating steps are as follows:

[0042] (1) Open the spring plate 8, put in the semiconductor laser 11, then put down the spring plate 8 and press the semiconductor laser 11. The positive electrode copper sheet and the negative electrode copper sheet are respectively placed at the opening end of the U-shaped platform, and the positive electrode copper sheet and the negative electrode copper sheet are both attached to the semiconductor laser 11.

[0043] (2) Solder is placed at the connection points between the positive electrode copper sheet and the negative electrode copper sheet and the semiconductor laser;

[0044] (3) Place the test plate 7 into the heating furnace. The solder melts when heated, thus achieving the welding of the semiconductor laser with the positive electrode copper sheet and the negative electrode copper sheet.

[0045] Example 2:

[0046] A welding, testing, and aging integrated fixture, with the structure described in Example 1, except that one welding boss 9 is provided.

[0047] Example 3:

[0048] When the integrated welding, testing, and aging fixture described in Example 1 is used for testing, the operation steps are as follows:

[0049] (1) The welded test plate 7 is mounted on the rotating shaft 18 of the test bench 20;

[0050] (2) Rotate the test disk 7 to select the semiconductor laser 11 to be tested, and then fix the position of the semiconductor laser by inserting the fixing nail 19;

[0051] (3) Test the current, voltage, wavelength and power of the semiconductor laser on the test stand 20;

[0052] (4) After the test is completed, pull out the fixing pin and repeat steps (2) and (3) to continue testing the next semiconductor laser until all tests are completed.

[0053] Example 4:

[0054] An integrated fixture for welding, testing, and aging is provided, with the structure described in Example 1, except that the fixture also includes an aging test mechanism. The aging test mechanism includes a hollow cylinder with one end open, an aluminum circular water-cooled plate 17 at the bottom of the hollow cylinder, a sealing column at the center of the aluminum circular water-cooled plate 17, light-absorbing heat sinks 14 on the side wall of the hollow cylinder, and a water-cooling channel inside the hollow cylinder.

[0055] When the above-mentioned integrated welding, testing, and aging fixture is used for aging, the operating steps are as follows:

[0056] (1) After testing, place the pressure plate 5 on the test plate 7, and connect the test plate and the pressure plate by connecting the hollow threaded column through the screw valve 4. The pressure spring 6 presses onto the positive electrode copper sheet and the negative electrode copper sheet of the semiconductor laser on the U-shaped stage respectively.

[0057] (2) Waterproof sealing ring 12 and waterproof sealing ring 13 are placed on the aluminum circular water-cooled plate and the sealing column respectively. The test plate 7 is threaded to the sealing column. The test plate is equipped with connecting screw 10 to fix the position of the test plate and the aluminum circular water-cooled plate.

[0058] (3) Water is circulated in the aging test mechanism, and the copper block 3 in series is connected to the power supply through the positive wire 1 and the negative wire 2 respectively to carry out aging.

Claims

1. A welding, testing, and burn-in integrated fixture, characterized by, The device comprises a test disc, a welding boss, a press-fit disc and a series copper block, wherein the welding boss is evenly arranged around the test disc, the series copper block is arranged around one side of the press-fit disc, and the press line spring is arranged around the other side of the press-fit disc and is connected to the series copper block, and the press line spring is positioned corresponding to the welding boss; The welding boss comprises a U-shaped platform, the opening of the U-shaped platform faces the center of the test disc, a connecting beam is arranged on the U-shaped platform, and a spring pressing plate is arranged on the connecting beam; The test disc and the press-fit disc are both circular discs, the material of the test disc is aluminum, the material of the press-fit disc is plastic, a hollow threaded column is arranged in the center of the test disc, a screw valve is arranged in the center of the press-fit disc, and the test disc and the press-fit disc are connected through the threaded connection of the screw valve and the hollow threaded column; The fixture further comprises an aging test mechanism, the aging test mechanism comprises a hollow cylinder with an open end, an aluminum circular water-cooling plate is arranged at the bottom of the hollow cylinder, a plugging column is arranged in the center of the aluminum circular water-cooling plate, light-absorbing heat dissipation fins are arranged on the side wall of the hollow cylinder, and a water-cooling channel is arranged in the hollow cylinder.

2. The weld, test, burn-in integrated fixture of claim 1, wherein, The welding boss is provided with at least one.

3. A method of using a welding, testing, and burn-in integrated fixture, the welding, testing, and burn-in integrated fixture of claim 1, wherein, When applied to welding, the operation steps are as follows: (1) open the spring pressing plate, put in the semiconductor laser, then put down the spring pressing plate, press the semiconductor laser, and place the positive lead copper sheet and the negative lead copper sheet at the opening end of the U-shaped platform, and the positive lead copper sheet and the negative lead copper sheet are attached to the semiconductor laser; (2) place the solder at the connection between the positive lead copper sheet and the negative lead copper sheet and the semiconductor laser; (3) place the test disc in the heating furnace, melt the solder by heating, and realize the welding of the semiconductor laser and the positive lead copper sheet and the negative lead copper sheet.

4. A method of using a welding, testing, and burn-in integrated fixture, the welding, testing, and burn-in integrated fixture of claim 1, wherein, When applied to testing, the operation steps are as follows: (1) hang the welded test disc on the rotating shaft of the test table; (2) rotate the test disc, select the semiconductor laser to be tested, and then fix the position of the semiconductor laser by inserting the fixing peg; (3) test the current, voltage, wavelength and power of the semiconductor laser on the test table; (4) after the test is completed, pull out the fixing peg, repeat steps (2) and (3), and continue to test the next semiconductor laser until all the tests are completed.

5. A method of using a welding, testing, and burn-in integrated fixture, the welding, testing, and burn-in integrated fixture of claim 1, wherein, When applied to aging, the operation steps are as follows: (1) place the press-fit disc on the test disc after testing, connect the test disc and the press-fit disc through the threaded connection of the screw valve and the hollow threaded column, and press the positive lead copper sheet and the negative lead copper sheet of the semiconductor laser on the U-shaped platform through the press line spring; (2) place the waterproof sealing ring on the aluminum circular water-cooling plate and the plugging column respectively, and threadedly connect the test disc to the plugging column; (3) water flows in the aging test mechanism, the series copper block is connected to the power supply through the positive lead and the negative lead, and aging is performed.

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