An MCC microchannel laser bar multi-angle rapid detection device and detection method

Abstract

The present invention relates to a multi-angle rapid detection device and method for MCC microchannel laser bars, belonging to the technical field of semiconductor laser packaging. The device includes a base, a baffle, side plates, a back plate, a pressing block, a fixing block and a fixing strip. Among them, baffles are symmetrically arranged on the base, side plates are arranged inside the baffles, a pressing block is movably arranged between the two side plates, the pressing block is connected with a fixing block, the bottom end of the fixing block is movably connected to the side plate, a fixing strip is arranged on the fixing block, and a back plate is arranged at the opening of the side plate where the fixing block is located. The structure of the present invention is simple, the manufacturing cost is low, the maintenance and operation are convenient, the production efficiency is high, the precision positioning of the MCC microchannel laser is realized, and the consistency and accuracy of detection are ensured.

Description

Technical Field

[0001] The present invention relates to a multi-angle rapid detection device and method for an MCC microchannel laser bar, belonging to the technical field of semiconductor laser packaging. Background Art

[0002] In recent years, due to the extremely high output power, good beam quality, compact structure, long service life, and the characteristics of small size, light weight, high efficiency and reliability of semiconductor lasers, semiconductor lasers have been increasingly widely used in the fields of pumping, medical treatment, display lighting, laser processing, and military. With the gradual optimization of the chip structure of high-power semiconductor lasers and the progress of packaging technology, the preparation and application of MCC microchannel lasers with an output power of more than one kilowatt have also increased rapidly. With the improvement of user requirements and the in-depth research, the performance of high-power MCC microchannel lasers has been rapidly improved, which has greatly promoted the development of solid-state lasers. With the increase in the electro-optical power conversion efficiency and output power of high-power MCC microchannel lasers, the heat load generated by the device is also increasing. To improve the optoelectronic characteristics of the laser, increase the output power of the laser, and extend the service life of the laser, the requirements for laser packaging and detection are also getting higher and higher.

[0003] The MCC microchannel laser bar is composed of multiple single die chips, with a lateral width of about 10 mm. During the packaging process, attention should be paid to reducing the influence of thermal stress on the bar, and in addition, it is necessary to ensure good heat dissipation of the bar laser and try to ensure the uniformity of the current. The microchannel structure usually uses indium solder as the main solder. Since indium belongs to soft solder, during the high-temperature vacuum sintering of MCC microchannel lasers, the indium layer is prone to flow onto the surface of the bar, covering the light-emitting area of the laser and causing the laser to fail. At the same time, due to the relatively brittle material of the bar, it is very easy to cause cracks in the bar during the packaging process, affecting the use performance of the product. Therefore, after the MCC microchannel laser is packaged, it is necessary to perform multi-angle detection on the MCC laser bar of the laser to select the lasers with quality defects.

[0004] The commonly used detection method is to detect the MCC microchannel laser at an angle of 45 degrees and a vertical angle of 90 degrees. First, manually place the MCC microchannel laser on a 45-degree angled fixture for detection, and then place it on another fixture for 90-degree detection after the detection. This method is relatively simple to operate, but it can only detect one laser at a time, and it cannot meet the low efficiency of continuous detection at multiple angles. Moreover, due to the relatively simple detection fixture, the MCC laser is not precisely fixed, resulting in a relatively large detection error when detecting the MCC bar. At the same time, when replacing the detection fixture for the product, it is difficult to avoid direct contact between the operator and the product, resulting in product contamination and damage caused by human factors. Therefore, a testing device with a simple structure, convenient operation, high production efficiency, and capable of quickly converting the angles of multiple MCC microchannel laser bars is designed to solve the problems existing in the current MCC microchannel laser bar detection work. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a multi-angle rapid detection device for MCC microchannel laser bars, which is convenient to operate, has high production efficiency, and can realize rapid conversion detection of multiple MCC microchannel laser bars at different angles.

[0006] The present invention also provides a detection method for the above multi-angle rapid detection device of MCC microchannel laser bars.

[0007] The technical solution of the present invention is as follows:

[0008] A multi-angle rapid detection device for MCC microchannel laser bars includes a base, a retaining edge, side plates, a back plate, a pressing block, a fixing block, and a fixing strip. Among them,

[0009] Retaining edges are symmetrically arranged on the base. Side plates are arranged inside the retaining edges. A pressing block is movably arranged between the two side plates. The pressing block is connected to a fixing block. The bottom end of the fixing block is movably connected to the side plate. A fixing strip is arranged on the fixing block. A back plate is arranged at the opening of the side plate where the fixing block is located.

[0010] Preferably, sliding grooves are arranged on the side plates. The pressing block is an L-shaped block. Both ends of the pressing block are movably connected to the sliding grooves through pulleys.

[0011] More preferably, the sliding grooves are L-shaped grooves, which are convenient for the pressing block to drive the fixing block to tilt.

[0012] Preferably, a guiding groove is arranged on the pressing block, and a sliding rail is arranged on the fixing block. The pressing block is connected to the fixing block through the guiding groove and the sliding rail, so that the pressing block can move up and down along the sliding rail.

[0013] More preferably, limit posts are respectively arranged at the upper and lower ends of the fixing block on one side of the sliding rail to limit the range of up and down movement of the pressing block through the limit posts.

[0014] Preferably, positioning protrusions are symmetrically arranged at the top end of the fixing block, and fixing holes are symmetrically arranged at the bottom end of the fixing strip. The precise positioning and fixing of the fixing strip are achieved through the cooperation of the positioning protrusions and the fixing holes.

[0015] Preferably, steering shafts are arranged on both sides of the bottom end of the fixing block, and the fixing block is movably connected to the side plate through the steering shafts and bearings.

[0016] Preferably, fixing posts II are symmetrically arranged at the upper end of the fixing block, and fixing posts I are symmetrically arranged at the lower end of the pressing block. A spring is arranged between the fixing post I and the fixing post II. The spring provides elastic support for the fixing block and the pressing block to fix the relative positions of the fixing block and the pressing block and prevent shaking.

[0017] Further preferably, grooves are arranged on both sides of the fixing block to provide an installation space for the fixing post I and avoid interference.

[0018] Preferably, fixing grooves are evenly arranged on the fixing strip. The MCC microchannel laser is fixed through the fixing grooves. An inclined angle is arranged at the top end of the fixing groove to facilitate the taking and placing of the MCC microchannel laser on the fixing strip.

[0019] The detection method of the above-mentioned MCC microchannel laser bar multi-angle rapid detection device is as follows:

[0020] (1) The pressing block is lifted upward along the sliding groove to the top position. At this time, the pressing block is in a horizontal state and the fixing block is in a vertical state;

[0021] (2) The end of the MCC microchannel laser with the bar is placed upward evenly into the fixing grooves of the fixing strip, and then the fixing strip is placed on the top end of the fixing block to detect the MCC microchannel laser bar in the fixing strip in the vertical 90-degree direction;

[0022] (3) After the vertical 90-degree direction detection is completed, press down the pressing block. The pulleys on both sides of the pressing block move along the sliding groove on the side plate, and the spring is stretched under force. Then the pressing block is pulled outward along the sliding groove on the side plate to drive the fixing block to tilt and rotate along the guide groove. When the pressing block is pulled outward to the vertex of the sliding groove, the fixing block is tilted 45 degrees to detect the MCC microchannel laser bar in the fixing strip in the 45-degree direction; By adjusting the sliding position of the pressing block, the switching of any angle between 45 degrees and 90 degrees of the MCC microchannel laser bar can be realized, which is convenient for detecting any angle between 45 degrees and 90 degrees.

[0023] (4) After the 45-degree direction detection is completed, push the pressing block to reset, remove the fixing strip and the MCC microchannel laser, and the multi-angle detection of the MCC microchannel laser bar is completed.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The structure of the present invention is simple, the manufacturing cost is low, and the maintenance and operation are convenient. The production efficiency is high, realizing the precise positioning of the MCC microchannel laser and ensuring the consistency and accuracy of detection.

[0026] 2. The present invention can simultaneously detect multiple MCC microchannel lasers at one time, realizing free switching at different angles, replacing the detection method that requires frequent replacement of detection fixtures in conventional operations, and increasing the detection efficiency of the MCC microchannel laser bar by more than 10 times.

[0027] 3. During the operation process of the present invention, the operator does not directly contact the product, reducing product pollution and damage caused by human factors, and the detection damage rate drops by more than 60%. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic three-dimensional structure of the present invention Figure Ⅰ ;

[0029] Figure 2 is a schematic three-dimensional structure of the present invention Figure Ⅱ ;

[0030] Figure 3 is a schematic three-dimensional structure diagram of the fixing bar of the present invention;

[0031] Figure 4 is a schematic bottom view structure diagram of the fixing bar of the present invention;

[0032] Figure 5 is a schematic three-dimensional structure diagram of the MCC microchannel laser of the present invention;

[0033] Figure 6 is a schematic three-dimensional structure diagram of the pressing block of the present invention;

[0034] Figure 7 is a schematic three-dimensional structure diagram of the side plate of the present invention;

[0035] Figure 8 is a schematic three-dimensional structure diagram of the fixing block of the present invention;

[0036] Figure 9 is a schematic structure diagram of the present invention when detecting the MCC microchannel laser in the vertical 90-degree direction;

[0037] Figure 10 is a schematic structure diagram of the present invention when detecting the MCC microchannel laser in the 45-degree direction;

[0038] Wherein: 1. Base, 2. Baffle, 3. Side plate, 4. Back plate, 5. Pressing block, 6. Fixed block, 7. Fixed strip, 8. MCC microchannel laser, 9. Spring, 10. Fixed groove, 11. Bevel angle, 12. Fixed hole, 13. Bar, 14. Pulley, 15. Fixed column I, 16. Guide groove, 17. Slide groove, 18. Bearing, 19. Steering shaft, 20. Positioning protrusion, 21. Fixed column II, 22. Slide rail, 23. Groove, 24. Limit post. Detailed implementation mode

[0039] The present invention will be further described below by way of examples in conjunction with the accompanying drawings, but not limited thereto.

[0040] Example 1:

[0041] As Figure 1-10 shown, this embodiment provides a multi-angle and rapid detection device for the bar of an MCC microchannel laser, including a base 1, a baffle 2, side plates 3, a back plate 4, a pressing block 5, a fixed block 6 and a fixed strip 7, wherein,

[0042] Baffles 2 are symmetrically arranged on the base, and the baffle 2 has an L-shaped structure for fixing the side plates 3. Side plates 3 are arranged inside the baffles 2. A pressing block 5 is movably arranged between the two side plates 3. The pressing block 5 is connected with a fixed block 6. The bottom end of the fixed block 6 is movably connected to the side plate 3. A fixed strip 7 is arranged on the fixed block 6. A back plate 4 is arranged at the opening of the side plate 3 where the fixed block 6 is located. The base 1 is located at the lowermost end of the device, and the middle of the base 1 is a hollow structure.

[0043] Slide grooves 17 are arranged on the side plates 3. The pressing block 5 is an L-shaped block. The two ends of the pressing block 5 are movably connected to the slide grooves 17 through pulleys 14. The width of the slide grooves 17 is the same as the diameter of the pulleys 14 to ensure the sliding effect.

[0044] The slide grooves 17 are L-shaped grooves, which are convenient for the pressing block to drive the fixed block to tilt.

[0045] Guide grooves 16 are arranged on the pressing block 5, and slide rails 22 are arranged on the fixed block 6. The pressing block 5 is connected to the fixed block 6 through the guide grooves 16 and the slide rails 22, so that the pressing block can move up and down along the slide rails.

[0046] Positioning protrusions 20 are symmetrically arranged at the top end of the fixed block 6, and fixed holes 12 are symmetrically arranged at the bottom end of the fixed strip 7. The precise positioning and fixation of the fixed strip are realized through the cooperation of the positioning protrusions and the fixed holes.

[0047] Steering shafts 19 are arranged on both sides of the bottom end of the fixed block 6. The fixed block 6 is movably connected to the side plate 3 through the steering shafts 19 and bearings 18.

[0048] On the upper end of the fixed block 6, fixing posts II 21 are symmetrically arranged. On the lower end of the pressing block 5, fixing posts I 15 are symmetrically arranged. A spring 9 is arranged between the fixing post I 15 and the fixing post II 21. The spring provides elastic support for the fixed block and the pressing block, fixes the relative positions of the fixed block and the pressing block, and prevents shaking.

[0049] On the fixing strip 7, fixing grooves 10 are arranged in a uniform array. The MCC microchannel laser 8 is fixed through the fixing grooves 10. An inclined angle 11 is arranged at the top end of the fixing groove 10, which facilitates the picking and placing of the MCC microchannel laser on the fixing strip.

[0050] The detection method of the above MCC microchannel laser bar multi-angle rapid detection device is as follows:

[0051] (1) The pressing block is lifted upward along the sliding groove to the top position. At this time, the pressing block is in a horizontal state and the fixed block is in a vertical state;

[0052] (2) One end of the MCC microchannel laser 8 with the bar 13 facing upward is evenly placed into the fixing groove of the fixing strip, and then the fixing strip is placed on the top end of the fixed block. The two positioning protrusions 20 at the top end of the fixed block 6 are respectively inserted into the fixing holes 12 at the lower end of the fixing strip 7 to fix and position the fixing strip 7, and then the MCC microchannel laser bar in the fixing strip is detected in the vertical 90-degree direction;

[0053] (3) After the vertical 90-degree direction detection is completed, press down the pressing block. The pulleys on both sides of the pressing block move along the sliding groove on the side plate, and the spring is stretched by force. Then, the pressing block is stretched outward along the sliding groove on the side plate, driving the fixed block to tilt and rotate along the guide groove. When the pressing block is stretched outward to the vertex of the sliding groove, the fixed block is tilted at 45 degrees, and the MCC microchannel laser bar in the fixing strip is detected in the 45-degree direction; by adjusting the sliding position of the pressing block, the switching of any angle between 45 degrees and 90 degrees of the MCC microchannel laser bar can be realized, which is convenient for detecting any angle between 45 degrees and 90 degrees.

[0054] (4) After the 45-degree direction detection is completed, push the pressing block to reset, remove the fixing strip and the MCC microchannel laser, and the multi-angle detection of the MCC microchannel laser bar is completed.

[0055] Embodiment 2:

[0056] A MCC microchannel laser bar multi-angle rapid detection device has the same structure as that in Embodiment 1. The difference is that limit posts 24 are respectively arranged at the upper end and the lower end of the fixed block 6 on one side of the slide rail 22, and the range of the up and down movement of the pressing block is limited by the limit posts.

[0057] Embodiment 3:

[0058] A multi-channel collinear (MCC) microchannel laser bar multi-angle rapid detection device has a structure as described in Embodiment 1. The difference is that grooves 23 are provided on both sides of the fixed block 6 to provide an installation space for the fixing post I through the grooves, avoiding interference.

Claims

1. A multi-channel collimator (MCC) microchannel laser bar multi-angle rapid detection device, characterized in that It includes a base, a baffle, side plates, a back plate, a pressing block, a fixing block and a fixing strip. Among them, baffles are symmetrically arranged on the base. Side plates are arranged inside the baffles. A pressing block is movably arranged between the two side plates. The pressing block is connected with a fixing block. The bottom end of the fixing block is movably connected to the side plate. A fixing strip is arranged on the fixing block. A back plate is arranged at the opening of the side plate where the fixing block is located; chutes are arranged on the side plates. The chutes are L-shaped grooves. The pressing block is an L-shaped block. Both ends of the pressing block are movably connected to the chutes through pulleys. A guide groove is arranged on the pressing block. A slide rail is arranged on the fixing block. The pressing block is connected to the fixing block through the guide groove and the slide rail.

2. The MCC microchannel laser bar multi-angle rapid detection device according to claim 1, characterized in that, Limit posts are respectively arranged at the upper end and the lower end of the fixing block on one side of the slide rail.

3. The MCC microchannel laser bar multi-angle rapid detection device according to claim 1, characterized in that, Positioning protrusions are symmetrically arranged at the top end of the fixing block. Fixing holes are symmetrically arranged at the bottom end of the fixing strip.

4. The MCC microchannel laser bar multi-angle rapid detection device according to claim 3, characterized in that, Steering shafts are arranged on both sides of the bottom end of the fixing block. The fixing block is movably connected to the side plate through the steering shafts and bearings.

5. The MCC microchannel laser bar multi-angle rapid detection device according to claim 4, characterized in that Fixing columns II are symmetrically arranged at the upper end of the fixing block. Fixing columns I are symmetrically arranged at the lower end of the pressing block. A spring is arranged between the fixing column I and the fixing column II.

6. The MCC microchannel laser bar multi-angle rapid detection device according to claim 5, characterized in that, Grooves are arranged on both sides of the fixing block.

7. The MCC microchannel laser bar multi-angle rapid detection device according to claim 5, characterized in that Fixing grooves are evenly arranged on the fixing strip. Chamfers are arranged at the top ends of the fixing grooves.

8. The detection method of the MCC microchannel laser bar multi-angle rapid detection device according to claim 7, characterized in that The operation steps are as follows: (1) Lift the pressing block along the chute to the top position. At this time, the pressing block is in a horizontal state and the fixing block is in a vertical state; (2) Place the end with the bar of the MCC microchannel laser facing upwards evenly into the fixing grooves of the fixing strip. Then place the fixing strip on the top end of the fixing block to perform a 90-degree vertical direction detection on the bar of the MCC microchannel laser in the fixing strip; (3) After the 90-degree vertical direction detection is completed, press down the pressing block. The pulleys on both sides of the pressing block move along the chutes on the side plates. The spring is stretched under force. Then stretch the pressing block outwards along the chutes on the side plates to drive the fixing block to tilt and rotate along the guide groove. When the pressing block is stretched out to the vertex of the chute, the fixing block tilts 45 degrees to perform a 45-degree direction detection on the bar of the MCC microchannel laser in the fixing strip; (4) After the 45-degree direction detection is completed, push the pressing block back to its original position, remove the fixing strip and the MCC microchannel laser, and the multi-angle detection work of the bar of the MCC microchannel laser is completed.

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