Semiconductor laser detection device and method

Abstract

The invention discloses a semiconductor laser detection device and method, and relates to the technical field of high-temperature detection boxes, the semiconductor laser detection device comprises a detection box, a heating mechanism, a fixing mechanism and a detection mechanism are arranged in the detection box, the detection box is provided with a detection chamber, a heating chamber and an equipment chamber, and a controller is arranged on the front end face of the detection box. The heating mechanism comprises a heating wire, a fan and a heat exchange plate, the heating mechanism is mounted in the heating chamber, the fixing mechanism comprises a fixing base, a positioning seat and a laser main body, the fixing mechanism is fixedly mounted at the bottom of the detection chamber, the positioning seat comprises a lower sealing disc, an upper sealing disc and a connecting rod, and the positioning seat is movably mounted on the fixing base; the detection mechanism comprises a hanging bracket and a laser receiver, has the advantages of rapid fault isolation, stable fixation and automatic operation, and solves the problems of difficult fault analysis, infirm fixation and manual dependence in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of high-temperature detection boxes, and in particular to a semiconductor laser detection device and method. Background Art

[0002] Semiconductor lasers, due to their advantages such as high efficiency, small size, and long life, have been widely used in fields such as communications, medical treatment, manufacturing, and military affairs. However, with the diversification of usage environments and the improvement of application requirements, higher requirements are being placed on the reliability and stability of semiconductor lasers. To ensure that these devices can operate stably in various environments, rigorous testing and inspection are particularly important. In many cases, semiconductor lasers need to operate or be stored in high-temperature environments. Existing technologies use high-temperature test chambers to simulate high-temperature environments to test the high-temperature resistance limits of the laser body.

[0003] However, existing high-temperature test chambers have some shortcomings in actual operation. When a laser fails, if it cannot be quickly isolated from the external environment, the fault state may change due to continued heating or other factors, which brings difficulties to subsequent fault analysis. During the detection process, if the laser body is not firmly fixed, it may cause position displacement or loosening, affecting the accuracy of the test results. Traditional detection methods mostly rely on manual operation, which is not only inefficient but also prone to human errors. Therefore, a semiconductor laser detection device and method are needed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a semiconductor laser detection device and method, which has the advantages of rapid fault isolation, stable fixation and automatic operation, and solves the problems of difficult fault analysis, loose fixation and manual dependence in the prior art.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a semiconductor laser detection device, comprising a detection box, wherein a heating mechanism, a fixing mechanism and a detection mechanism are provided in the detection box;

[0006] The detection box is provided with a detection chamber, a heating chamber and an equipment chamber, and the front end surface of the detection box is provided with a controller;

[0007] The heating mechanism includes a heating wire, a fan and a heat exchange plate, and the heating mechanism is installed in the heating chamber;

[0008] The fixing mechanism includes a fixed base, a positioning seat and a laser body. The fixing mechanism is fixedly installed at the bottom of the detection chamber. The positioning seat includes a lower sealing disk, an upper sealing disk and a connecting rod. The positioning seat is movably installed on the fixed base.

[0009] The detection mechanism includes a hanger and a laser receiver. The detection mechanism is fixedly installed on the top of the detection room and is used to receive the laser signal generated by the laser body.

[0010] As a preferred semiconductor laser detection device of the present invention, the upper end surface of the fixed base is evenly provided with a first sliding groove that is slidably connected to the positioning seat, the lower end surface of the lower sealing disk is provided with a guide rod, and the top of the first sliding groove is provided with a guide sleeve that slides with the guide rod.

[0011] As a preferred semiconductor laser detection device of the present invention, a motor is provided at the bottom of the fixed base, a screw rod rotatably connected to the fixed base is provided on the output shaft of the motor, and an internal threaded sleeve cooperating with the screw rod is provided on the lower end face of the positioning seat.

[0012] As a preferred semiconductor laser detection device of the present invention, the end face of the first slide groove is provided with an inlet flow channel and an exhaust pipe, the lower end face of the fixed base is provided with a diverter plate, the bottom of the diverter plate is provided with an air inlet hole, the side end face of the diverter plate is provided with an air outlet hole that passes through the inlet flow channel, a first solenoid valve is provided between the air outlet hole and the inlet flow channel, and a second solenoid valve is provided on the exhaust pipe.

[0013] As a preferred semiconductor laser detection device of the present invention, the upper end face of the positioning seat is provided with a positioning groove and a second slide groove, the side end face of the laser body is provided with an annular flange cooperating with the positioning groove, a claw is provided in the second slide groove, the side end face of the claw is provided with a first rotating shaft rotatably connected to the positioning seat, a slide rod is provided at the bottom of the claw, the lower end of the positioning groove is provided with a third slide groove communicating with the second slide groove, a piston plate slidably connected is provided in the third slide groove, the upper end face of the piston plate is beveled and provided with a guide slide groove slidably cooperating with the slide rod, and the bottom of the third slide groove is provided with a ventilation hole communicating with the top of the first slide groove.

[0014] As a preferred semiconductor laser detection device of the present invention, a spring is provided on the upper end of the piston plate, and the piston plate is elastically slidably connected to the positioning seat via the spring.

[0015] As a preferred semiconductor laser detection device of the present invention, a heat-insulating cavity is provided inside the upper sealing disk, an upper mirror is provided at the top center of the heat-insulating cavity, and a lower mirror is provided at the bottom center of the heat-insulating cavity.

[0016] As a preferred embodiment of the semiconductor laser detection device of the present invention, the center of the upper lens is provided with an upwardly protruding arc-shaped convex point.

[0017] As a preferred semiconductor laser detection device of the present invention, the heating wire is fixedly mounted on the heat exchange plate, the fan is mounted on the lower end of the heating wire, temperature sensors are evenly arranged in the detection chamber, an air inlet is provided at the bottom of the side end surface of the heating chamber, and an air outlet is provided at the top of the heating chamber near the guide plate.

[0018] A semiconductor laser detection method comprises the following steps:

[0019] Step 1: Prepare and initialize the equipment, perform functional verification on each component of the detection device, and confirm that the heating mechanism, fixing mechanism, detection mechanism and controller are in normal working condition;

[0020] Step 2: Clamp and position the laser body. Place the laser body on the positioning seat and fix it.

[0021] Step 3: Temperature rise detection and signal acquisition: The heating mechanism is started to heat the detection chamber. At the same time, the laser receiver of the detection mechanism collects the laser signal emitted by the laser body in real time, synchronously records the signal intensity, wavelength and other parameters and stores them in the controller;

[0022] Step 4: Fault response and status locking: When the laser receiver detects an abnormal signal, the controller controls the positioning seat to slide downward into the fixed base to cool the laser body;

[0023] Step 5: Signal analysis and fault determination. After the detection is completed, all laser bodies are taken out, and the stored signal data is combined with spectrum analysis and waveform comparison to determine the cause of the laser body failure in combination with the physical damage of the laser body.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention adopts a closed cavity design formed by the first slide groove, guide rod and guide sleeve of the positioning seat, the lower sealing disk and the upper sealing disk, combined with the diverter disk and the airflow system controlled by the solenoid valve. When the laser body is damaged, it can be quickly stored in the fixed base to form a closed space. This structure not only isolates the high temperature environment in the detection room, but also achieves rapid cooling and isolation from oxygen through the continuous introduction of carbon dioxide, effectively preventing further oxidation or thermal damage to the internal components of the laser body. This solves the problem of the fault state being destroyed due to continuous heating in traditional detection and the difficulty in tracing the specific cause of failure, ensures that the physical state at the moment of damage is completely preserved, and provides a reliable basis for subsequent fault analysis.

[0026] 2. The present invention adopts an air pressure-driven claw locking structure and a spring reset device to realize automatic clamping and release of the laser body through the change of air pressure in the inlet air duct. During the detection process, the air pressure increases to enable the claw to firmly fix the laser body to prevent loosening; when a fault occurs, the air pressure recovery triggers the claw to automatically open, and cooperates with the motor-driven screw lifting mechanism to realize the rapid downward movement of the positioning seat. This design solves the problems of easy loosening and low disassembly efficiency of traditional fixing methods, while ensuring the fault response speed, reducing human intervention, and improving the automation level of the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a right side cross-sectional view of the present invention;

[0029] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0030] Figure 4 An exploded view of the fixing mechanism of the present invention;

[0031] Figure 5 A top view of the fixing mechanism of the present invention;

[0032] Figure 6 5 is the AA cross-sectional view of the present invention;

[0033] Figure 7 It is a schematic diagram of the positioning seat structure of the present invention;

[0034] Figure 8 For the present invention Figure 6 Enlarged view of point C in the middle;

[0035] Figure 9 It is a structural schematic diagram of the detection mechanism of the present invention;

[0036] Figure 10 For the present invention Figure 6 Enlarged view of point D in the middle;

[0037] Figure 11 For the present invention Figure 6 Enlarged view of point E in the middle;

[0038] Figure 12 For the present invention Figure 6 Enlarged view of point F in the middle.

[0039] In the figure: 1, test box; 101, test chamber; 102, heating chamber; 103, controller; 104, equipment room; 2, fixing mechanism; 201, fixed base; 2011, first slide; 2012, exhaust pipe; 20121, second solenoid valve; 2013, intake air duct; 2014, screw rod; 2015, guide sleeve; 2016, motor; 202, positioning seat; 2021, lower sealing plate; 20211, connecting rod; 20212, positioning groove; 20213, second slide; 20214, internal thread sleeve; 20215, guide rod; 20216, third slide; 20217, ventilation hole; 2022, upper sealing Sealing plate; 20221, heat-insulating cavity; 20222, lower lens; 20223, upper lens; 20224, arc-shaped protrusion; 203, laser body; 2031, annular flange; 204, claw; 2041, first rotating shaft; 2042, slide rod; 205, piston plate; 2051, guide groove; 206, spring; 207, diverter plate; 2071, air inlet; 2074, air outlet; 2073, first solenoid valve; 3, detection mechanism; 301, hanger; 302, laser receiver; 4, heating mechanism; 401, heating wire; 402, fan; 403, temperature sensor; 404, heat exchange plate; 405, guide plate. DETAILED DESCRIPTION

[0040] Example 1

[0041] See also Figures 1-12 , a semiconductor laser detection device, comprising a detection box 1, wherein the detection box 1 is provided with a heating mechanism 4, a fixing mechanism 2 and a detection mechanism 3;

[0042] The detection box 1 is provided with a detection chamber 101, a heating chamber 102 and an equipment chamber 104. The front end of the detection box 1 is provided with a controller 103;

[0043] The heating mechanism 4 includes a heating wire 401, a fan 402 and a heat exchange plate 404, and the heating mechanism 4 is installed in the heating chamber 102;

[0044] The fixing mechanism 2 includes a fixing base 201, a positioning base 202 and a laser body 203. The fixing mechanism 2 is fixedly mounted on the bottom of the detection chamber 101. The positioning base 202 includes a lower sealing disk 2021, an upper sealing disk 2022 and a connecting rod 20211. The positioning base 202 is movably mounted on the fixing base 201.

[0045] The detection mechanism 3 includes a hanger 301 and a laser receiver 302 . The detection mechanism 3 is fixedly installed on the top of the detection chamber 101 for receiving the laser signal generated by the laser body 203 .

[0046] The laser body 203 is fixed by the fixing mechanism 2, and the detection box 1 is heated by the heating mechanism 4 to detect the tolerance problem of the laser body 203. The laser signal generated by the laser body 203 is detected in real time by the laser receiver 302 on the detection mechanism 3. When the laser body 203 is damaged or the offset angle is too large, the positioning seat 202 quickly slides down and is retracted into the fixed base 201, thereby maintaining the original state of the damage, so as to determine the cause of the failure and make improvements, and avoid continued heating that makes it impossible to determine the specific cause of the failure.

[0047] Furthermore, the upper end surface of the fixed base 201 is evenly provided with a first sliding groove 2011 that is slidably connected to the positioning seat 202, the lower end surface of the lower sealing disk 2021 is provided with a guide rod 20215, and the top of the first sliding groove 2011 is provided with a guide sleeve 2015 that slides with the guide rod 20215.

[0048] The positioning seat 202 slides up and down along the guide rod 20215, so that after the laser body 203 is damaged, the positioning seat 202 can drive the laser body 203 to slide into the first slide groove 2011, thereby forming a closed cavity between the upper sealing disk 2022 and the lower sealing disk 2021, isolating the laser body 203 from the high temperature environment in the detection chamber 101, and at the same time, the laser body 203 can be quickly cooled by ventilating the closed cavity to prevent further oxidation of the internal components of the laser body 203.

[0049] Furthermore, a motor 2016 is provided at the bottom of the fixed base 201 , a screw rod 2014 rotatably connected to the fixed base 201 is provided on the output shaft of the motor 2016 , and an internal threaded sleeve 20214 cooperating with the screw rod 2014 is provided on the lower end surface of the positioning seat 202 .

[0050] The motor 2016 drives the screw 2014 to rotate, so that the fixed base 201 slides up and down under the action of the screw 2014, thereby controlling the lifting and lowering of the positioning seat 202, and can quickly put the laser body 203 into the first slide groove 2011 as soon as it is damaged.

[0051] Furthermore, the end face of the first slide groove 2011 is provided with an inlet flow channel 2013 and an exhaust pipe 2012, the lower end face of the fixed base 201 is provided with a diverter plate 207, the bottom of the diverter plate 207 is provided with an air inlet hole 2071, the side end face of the diverter plate 207 is provided with an air outlet hole 2074 that passes through the inlet flow channel 2013, a first solenoid valve 2073 is provided between the air outlet hole 2074 and the inlet flow channel 2013, and a second solenoid valve 20121 is provided on the exhaust pipe 2012.

[0052] A carbon dioxide gas cylinder is provided in the equipment room 104. The carbon dioxide gas cylinder is connected to the air inlet 2071 and supplies gas to each inlet flow channel 2013 through the diverter plate 207. Carbon dioxide can be used to adjust the air pressure in the first slide groove 2011. When the positioning seat 202 slides down into the first slide groove 2011, carbon dioxide continues to enter the first slide groove 2011 from the inlet flow channel 2013 and is discharged to the outside of the equipment from the exhaust pipe 2012, thereby cooling the laser body 203 and isolating oxygen at the same time, so that the laser body 203 remains in its originally damaged state.

[0053] Furthermore, the upper end surface of the positioning seat 202 is provided with a positioning groove 20212 and a second slide groove 20213, the side end surface of the laser body 203 is provided with an annular flange 2031 that cooperates with the positioning groove 20212, a claw 204 is provided in the second slide groove 20213, the side end surface of the claw 204 is provided with a first rotating shaft 2041 rotatably connected to the positioning seat 202, and a slide rod 2042 is provided at the bottom of the claw 204. The lower end of the positioning groove 20212 is provided with a third slide groove 20216 that passes through the second slide groove 20213, and a piston plate 205 that is slidably connected is provided in the third slide groove 20216. The upper end surface of the piston plate 205 is obliquely cut and provided with a guide slide groove 2051 that slidably cooperates with the slide rod 2042, and the bottom of the third slide groove 20216 is provided with a ventilation hole 20217 that passes through the top of the first slide groove 2011.

[0054] When the positioning seat 202 is in the initial state, that is, the upper end surface of the lower sealing disk 2021 is flush with the upper end surface of the fixed base 201, the laser body 203 is placed in the positioning groove 20212, and air is ventilated into the first slide groove 2011 through the inlet air duct 2013 to increase the air pressure in the first slide groove 2011, thereby increasing the air pressure in the third slide groove 20216, and the piston plate 205 slides upward, and through the cooperation of the guide slide groove 2051 and the slide rod 2042, the claw 204 is used to clamp the annular flange 2031 at the bottom of the laser body 203 under the action of the lever, fixing it to prevent the laser body 203 from loosening during the detection process.

[0055] Furthermore, a spring 206 is provided at the upper end of the piston plate 205 , and the piston plate 205 and the positioning seat 202 are elastically slidably connected via the spring 206 .

[0056] When the air pressure in the first slide groove 2011 returns to normal, the piston plate 205 slides downward under the action of the spring 206, so that the claws 204 open outward with the cooperation of the slide rod 2042 and the guide slide groove 2051, releasing the fixation of the laser body 203, making it easier for the equipment to replace the laser body 203 for inspection.

[0057] Furthermore, a heat-insulating cavity 20221 is provided inside the upper sealing disk 2022 , an upper lens 20223 is provided at the top center of the heat-insulating cavity 20221 , and a lower lens 20222 is provided at the bottom center of the heat-insulating cavity 20221 .

[0058] By setting up a heat-insulating cavity 20221 in the upper sealing disk 2022, when the positioning seat 202 is received in the first slide groove 2011, the inside of the first slide groove 2011 is thermally isolated from the outside, thereby preventing external heat from affecting the internal laser body 203. At the same time, it is avoided that when the damaged laser body 203 is cooled, it will not have too much impact on the temperature in the detection chamber 101.

[0059] Furthermore, an upwardly protruding arc-shaped convex point 20224 is provided at the center of the upper lens 20223.

[0060] The center of the upper lens 20223 produces a convex lens focusing effect, thereby confining the laser generated by the laser body 203 and reducing the impact of the laser generated by the laser body 203 on other laser receivers 302.

[0061] Furthermore, the heating wire 401 is fixedly installed on the heat exchange plate 404, the fan 402 is installed at the lower end of the heating wire 401, temperature sensors 403 are evenly arranged in the detection chamber 101, an air inlet is provided at the bottom of the side end surface of the heating chamber 102, and an air outlet is provided at the top of the heating chamber 102 near the guide plate 405.

[0062] Air is drawn from the air inlet by the fan 402, heated by the heating wire 401, and blown toward the detection chamber 101 from the air outlet, thereby circulating heating the detection chamber 101. The heat exchange area between the airflow and the heating wire 401 is increased by the heat conduction plate, thereby improving the heating efficiency. Real-time monitoring is performed by the temperature sensor 403, thereby accurately controlling the temperature.

[0063] Example 2

[0064] See also Figures 1-12 , a semiconductor laser detection method, comprising the following steps:

[0065] Step 1: Prepare and initialize the equipment. Perform an appearance inspection on the detection device to check whether the detection box 1 is damaged or deformed to ensure that it is well sealed. Check whether the display screen and buttons of the controller 103 are normal. Perform functional verification on the components such as the heating mechanism 4, the fixing mechanism 2, and the detection mechanism 3 to confirm that the heating wire 401 can generate heat normally, the fan 402 can rotate normally, and the connections of all components are firm and the transmission is normal. Check whether the electrical connections are correct and firm, and whether the power supply is stable. Calibrate the temperature sensor 403 in the detection chamber 101 and use a standard thermometer for comparative measurement and adjust the error. Check whether the carbon dioxide cylinder in the equipment room 104 has sufficient gas, whether the air pressure is normal, whether the gas channel is unobstructed, and whether the first and second solenoid valves 20121 can be opened and closed normally.

[0066] Step 2: Clamp and position the laser body 203. Check whether the positioning seat 202 is in the initial state, that is, the upper end surface of the lower sealing disk 2021 is flush with the upper end surface of the fixed base 201. If the position is incorrect, control the motor 2016 through the controller 103 to drive the screw 2014 to rotate and adjust; carefully place the laser body 203 in the positioning groove 20212 on the upper end surface of the positioning seat 202, so that the annular flange 2031 is accurately matched with the positioning groove 20212; open the first solenoid valve 2073 of the inlet air flow channel 2013 through the controller 103. , allowing carbon dioxide gas to enter the inlet flow channel 2013 through the air inlet hole 2071, the diverter plate 207, and the air outlet hole 2074, increasing the air pressure in the first slide groove 2011, thereby increasing the air pressure in the lower part of the third slide groove 20216, pushing the piston plate 205 to overcome the elastic force of the spring 206 and slide upward. Through the cooperation of the guide slide groove 2051 and the slide rod 2042, the claw 204 rotates around the first rotating shaft 2041 to clamp the annular flange 2031 at the bottom of the laser body 203 to achieve fixation; finally, check whether the claw 204 is firmly clamped to the laser body 203;

[0067] Step 3: Temperature rise detection and signal acquisition. The heating mechanism 4 is started through the controller 103. The fan 402 draws air from the air inlet, heats the heating wire 401, and then blows it to the detection chamber 101 from the air outlet for cyclic heating. The temperature curve required for detection is set on the controller 103. The temperature sensor 403 monitors the temperature in real time and feeds back to the controller 103. The controller 103 automatically adjusts the heating power of the heating wire 401 to accurately control the temperature. The laser receiver 302 of the detection mechanism 3 receives the laser signal generated by the laser body 203 in real time, converts it into an electrical signal and transmits it to the controller 103. The controller 103 synchronously records and stores parameters such as signal strength, wavelength, and frequency. The temperature and laser signal parameters are displayed in real time on the display screen of the controller 103, which is convenient for the operator to monitor and handle any abnormalities in a timely manner.

[0068] Step 4, fault response and status locking, the controller 103 analyzes the laser signal collected by the laser receiver 302 in real time, and determines that the laser body 203 may be faulty when the signal parameters exceed the preset normal range; immediately control the motor 2016 to start and drive the screw 2014 to rotate, so that the positioning seat 202 quickly slides down and is collected into the first slide groove 2011 of the fixed base 201 through the cooperation of the guide rod 20215 and the guide sleeve 2015; after the positioning seat 202 slides into place, the upper sealing disk 2022 and the lower sealing disk 2021 fit together to form a closed cavity to isolate the high temperature environment; at the same time, the controller 103 opens the first solenoid valve 2073 of the inlet air flow channel 2013 and the second solenoid valve 20121 on the exhaust pipe 2012, so that carbon dioxide gas enters the first slide groove 2011 and is discharged, quickly cooling the laser body 203, isolating oxygen, and preventing component oxidation; during this process, the controller 103 continues to monitor the temperature and laser signal and record fault-related data;

[0069] Step 5: Signal analysis and fault determination. After the test is completed, the laser signal and temperature data are exported from the storage module of the controller 103, sorted and pre-processed, and the spectrum of the laser signal is analyzed using professional software to extract the frequency components and energy distribution characteristics and compare them with the normal situation. After the test box 1 returns to room temperature, open the test box 1 and take out the laser body 203 for appearance inspection to check for physical damage and check whether the internal components are burned or short-circuited. The cause of the fault is comprehensively determined by combining the spectrum analysis, waveform comparison results and physical damage conditions. A detailed fault report is generated based on the determination results.

[0070] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A semiconductor laser detection device, comprising a detection box (1), characterized in that: The detection box (1) is provided with a heating mechanism (4), a fixing mechanism (2) and a detection mechanism (3); The detection box (1) is provided with a detection chamber (101), a heating chamber (102) and an equipment chamber (104); a controller (103) is provided on the front face of the detection box (1); The heating mechanism (4) comprises a heating wire (401), a fan (402) and a heat exchange plate (404), and the heating mechanism (4) is installed in the heating chamber (102); The fixing mechanism (2) comprises a fixing base (201), a positioning base (202) and a laser body (203); the fixing mechanism (2) is fixedly mounted on the bottom of the detection chamber (101); the positioning base (202) comprises a lower sealing disk (2021), an upper sealing disk (2022) and a connecting rod (20211); and the positioning base (202) is movably mounted on the fixing base (201); The detection mechanism (3) comprises a hanger (301) and a laser receiver (302). The detection mechanism (3) is fixedly installed on the top of the detection chamber (101) and is used to receive the laser signal generated by the laser body (203).

2. A semiconductor laser detection device according to claim 1, characterized in that: The upper end surface of the fixed base (201) is evenly provided with a first sliding groove (2011) that is slidably connected to the positioning seat (202), the lower end surface of the lower sealing disk (2021) is provided with a guide rod (20215), and the top of the first sliding groove (2011) is provided with a guide sleeve (2015) that slidably cooperates with the guide rod (20215).

3. A semiconductor laser detection device according to claim 2, characterized in that: A motor (2016) is provided at the bottom of the fixed base (201), a screw rod (2014) rotatably connected to the fixed base (201) is provided on the output shaft of the motor (2016), and an internal threaded sleeve (20214) cooperating with the screw rod (2014) is provided on the lower end surface of the positioning seat (202).

4. A semiconductor laser detection device according to claim 3, characterized in that: The end surface of the first chute (2011) is provided with an inlet flow channel (2013) and an exhaust pipe (2012); the lower end surface of the fixed base (201) is provided with a diverter plate (207); the bottom of the diverter plate (207) is provided with an air inlet hole (2071); the side end surface of the diverter plate (207) is provided with an air outlet hole (2074) that is connected to the inlet flow channel (2013); a first solenoid valve (2073) is provided between the air outlet hole (2074) and the inlet flow channel (2013); and a second solenoid valve (20121) is provided on the exhaust pipe (2012).

5. The semiconductor laser detection device according to claim 1, wherein: The upper end surface of the positioning seat (202) is provided with a positioning groove (20212) and a second slide groove (20213); the side end surface of the laser body (203) is provided with an annular flange (2031) that cooperates with the positioning groove (20212); a clamping claw (204) is provided in the second slide groove (20213); the side end surface of the clamping claw (204) is provided with a first rotating shaft (2041) that is rotatably connected to the positioning seat (202); the bottom of the clamping claw (204) is provided with a sliding rod (2031). 42), the lower end of the positioning groove (20212) is provided with a third slide groove (20216) which is connected with the second slide groove (20213), the third slide groove (20216) is provided with a slidingly connected piston plate (205), the upper end surface of the piston plate (205) is beveled and provided with a guide slide groove (2051) which is slidably matched with the slide rod (2042), and the bottom of the third slide groove (20216) is provided with a ventilation hole (20217) which is connected with the top of the first slide groove (2011).

6. A semiconductor laser detection device according to claim 5, characterized in that: A spring (206) is provided at the upper end of the piston plate (205), and the piston plate (205) is elastically slidably connected to the positioning seat (202) via the spring (206).

7. The semiconductor laser detection device according to claim 1, wherein: An insulating cavity (20221) is provided inside the upper sealing disk (2022), an upper lens (20223) is provided at the top center of the insulating cavity (20221), and a lower lens (20222) is provided at the bottom center of the insulating cavity (20221).

8. A semiconductor laser detection device according to claim 7, characterized in that: The center of the upper lens (20223) is provided with an upwardly protruding arc-shaped convex point (20224).

9. The semiconductor laser detection device according to claim 1, wherein: The heating wire (401) is fixedly mounted on the heat exchange plate (404), the fan (402) is mounted at the lower end of the heating wire (401), and temperature sensors (403) are evenly arranged in the detection chamber (101).

10. A semiconductor laser detection method, applicable to a semiconductor laser detection device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Equipment preparation and initialization, functional verification of each component of the detection device, and confirmation that the heating mechanism (4), the fixing mechanism (2), the detection mechanism (3) and the controller (103) are all in normal working condition; Step 2: Clamp and position the laser body (203), place the laser body (203) on the positioning seat (202) and fix it; Step 3: Temperature rise detection and signal acquisition: the heating mechanism (4) is started to heat the detection chamber (101). At the same time, the laser receiver (302) of the detection mechanism (3) collects the laser signal emitted by the laser body (203) in real time, synchronously records parameters such as signal intensity and wavelength, and stores them in the controller (103); Step 4, fault response and state locking, when the laser receiver (302) detects a signal abnormality, the controller (103) controls the positioning seat (202) to slide downward into the fixed base (201), and cools the laser body (203); Step 5: Signal analysis and fault determination. After the detection is completed, all laser bodies (203) are taken out, and the stored signal data is combined with spectrum analysis and waveform comparison, and the physical damage of the laser body (203) is combined to determine the cause of the failure of the laser body (203).

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