Micro-LED chip automatic continuous detection device

Abstract

The invention belongs to the technical field of electrical performance testing, and particularly relates to a Micro-LED chip automatic continuous detection device which comprises an ATE machine body. The ATE machine body is fixedly connected with a conveying track, and the conveying track is arranged in a double-channel mode; the outer wall of the ATE machine body is fixedly connected with a supporting frame. Through the conveying track and the connection test assembly arranged on the ATE machine body, automatic continuous alternate electrical performance test of Micro-LED chips is realized, a traditional detection mode is replaced, the test time of large-scale production is shortened, the chip production efficiency is improved, a servo motor on the ATE machine body drives a push plate on the conveying track, and the test efficiency of the Micro-LED chips is improved. The chips are alternately pushed to the connection test assembly for electrical performance test, the plugging plates controlled by the hydraulic cylinder alternately seal the circuit to ensure that the chips are accurately butted with the test plug, and after the test is completed, the pulling mechanism driven by the second belt hooks and drags the chip seat to the blanking groove to slide into the collection box. And the sliding plate in the collection box descends along with gravity when the chips are stacked, so that the risk of damage to the chips is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrical performance testing, and specifically relates to an automatic continuous detection device for Micro-LED chips. Background Art

[0002] An automatic continuous detection device for Micro-LED chips is an automated equipment used for efficiently and precisely detecting the performance and quality of Micro-LED chips. It integrates optical, electrical, and mechanical systems, and can achieve chip detection, data analysis, and sorting. It is widely used in the manufacturing of Micro-LED displays, semiconductor production, and scientific research fields.

[0003] A patent application with the publication number CN117630646A discloses a chip electrical performance testing mechanism, including a base, a three-axis adjustment component, a testing component, and a base for placing the PCB board to be tested. A three-axis adjustment component is installed on one side of the base along the negative Y-axis direction. This application can reduce the risk of Socket plug damage, reduce PCB damage, greatly save manpower, and optimize the installation space occupied by the original manual equipment mechanism.

[0004] When performing electrical performance testing on Micro-LED chips, although the above-mentioned testing device can reduce the risk of plug damage, in actual applications, these devices often adopt a single-chip testing method. Due to the high defect rate of Micro-LED chips, the single-chip testing method is difficult to meet the needs of large-scale production. Each chip needs to be independently tested one by one, which greatly prolongs the testing time in large-scale production, thereby affecting the overall production efficiency.

[0005] Therefore, the present invention provides an automatic continuous detection device for Micro-LED chips. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A Micro-LED chip automatic continuous detection device described in the present invention includes an ATE body; a conveying track is fixedly connected to the ATE body, and the conveying track is arranged in a double-channel manner; a support frame is fixedly connected to the outer wall of the ATE body; a servo motor is fixedly connected to the support frame; two first rotating shafts are rotatably connected to the conveying track near the servo motor, and the output end of the servo motor is connected to the bottom end of one of the first rotating shafts; a first belt is sleeved between the two first rotating shafts; two pushing plates are fixedly connected to the outer wall of the first belt, and the two pushing plates are slidably connected to the conveying track; a connection test component is arranged on the ATE body, and the connection test component is used for testing the chip connection and electrical performance.

[0008] Preferably, a plurality of chip seats are arranged on the conveying track; the connection test component includes an electric cylinder and a test plug; the two electric cylinders are fixedly connected to the ATE body, and the two electric cylinders are respectively located in the middle of the double channels of the conveying track; the test plug is fixedly connected to the output end of the electric cylinder.

[0009] Preferably, a hydraulic cylinder is fixedly connected to the conveying track; a blocking plate is fixedly connected to the output end of the hydraulic cylinder; two input ends of the hydraulic cylinder are respectively fixedly connected to a first oil pipe and a second oil pipe; a transmission component is arranged on the ATE body, and the transmission component is used to drive the output end of the hydraulic cylinder to stretch and retract.

[0010] Preferably, the transmission component includes a pressing block, an oil box, a sliding block, a pressing plate and a first elastic member; the pressing block is fixedly connected to the side of the pushing plate away from the first rotating shaft; the two oil boxes are fixedly connected to the ATE body, the two oil boxes are respectively communicated with the first oil pipe and the second oil pipe, and the two oil boxes are located on both sides of the conveying track; the sliding block is slidably connected to the inner wall of the oil box, and the pressing block is arranged corresponding to the sliding block; the pressing plate is slidably connected to the inner wall of the oil box, and the round rod end of the pressing plate is fixedly connected to the sliding block; the first elastic member is sleeved on the outer wall of the round rod end of the pressing plate.

[0011] Preferably, two second rotating shafts are rotatably connected to one side of the ATE body away from the two first rotating shafts; a second belt is sleeved between the two second rotating shafts; belt pulleys are fixedly connected to the adjacent first rotating shaft and second rotating shaft; a third belt is sleeved between the two belt pulleys; a pulling mechanism is arranged on the outer wall of the second belt, and the pulling mechanism is used to pull the detected chips.

[0012] Preferably, the pulling mechanism includes a fixed plate, a connecting frame, a first rotating rod, an extension frame and a matching component; the two fixed plates are fixedly connected to the outer wall of the second belt, and the two fixed plates slide on the conveying track; the two connecting frames are relatively fixedly connected to one side of the fixed plate close to the first rotating shaft; the first rotating rod is rotatably connected to the connecting frame through a first torsion spring; the extension frame is fixedly connected to the outer wall of the first rotating rod; the matching component is arranged on the extension frame, and the matching component is used for hooking and pulling the chip seat to move.

[0013] Preferably, the matching component includes a second rotating rod, a short plate and a short rod; the second rotating rod is rotatably connected to the extension frame through a second torsion spring; the short plate is fixedly connected to the outer wall of the second rotating rod; the four short rods are respectively fixedly connected to the four corners of the chip seat.

[0014] Preferably, blanking grooves are respectively formed in the double channels of the conveying track; a collecting box is arranged at the bottom of the conveying track, and the two collecting boxes are located below the blanking grooves.

[0015] Preferably, a sliding plate is slidably connected to the inner wall of the collecting box; a second elastic member is fixedly connected between the bottom end of the sliding plate and the inner wall of the collecting box.

[0016] Preferably, two limiting plates are fixedly connected to the bottom end of the conveying track; the two limiting plates are respectively located below the two blanking grooves.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. For the automatic continuous detection device for Micro-LED chips of the present invention, the automatic continuous alternating electrical performance test of Micro-LED chips is realized through the conveying track and the connection test component arranged on the ATE body, effectively replacing the traditional detection method, greatly shortening the test time of large-scale production, improving the overall chip production efficiency. In addition, using a single servo motor to control the operation of multiple structures reduces resource consumption. The push plate on the conveying track is driven by the servo motor on the ATE body to alternately push the chips to the connection test component for electrical performance test. Then, the blocking plates controlled by the hydraulic cylinders alternately block the roads to ensure the precise docking of the chips with the test plugs. After the test is completed, the pulling mechanism driven by the second belt hooks and pulls the chip seat to the blanking groove and slides it into the collecting box. The sliding plate in the collecting box drops with gravity when the chips are stacked, reducing the risk of chip damage, and the limiting plates ensure the convenient and quick replacement of the collecting box after it is removed.

[0019] 2. In an automatic continuous detection device for Micro-LED chips according to the present invention, first, the chips are placed on a chip holder and are successively pushed to the test area. At this time, the output end of the electric cylinder drives the test plug to contact the chips for electrical performance testing. When the testing of one chip holder is completed, the corresponding channel is sealed by a blocking plate, and the next chip holder is pushed to this channel for testing. In this way, the testing efficiency is improved by alternating. After testing, the chip holder is hooked by a pulling mechanism to the blanking chute and slides into the collection box. The sliding plate drops under gravity to ensure that each chip holder is blanked separately. At the same time, the limiting plate ensures that the collection box can be replaced conveniently and quickly. The whole process realizes the automatic continuous testing and blanking of the chips, greatly shortening the testing time in large-scale production and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is a schematic structural view of the test plug in the present invention;

[0023] Figure 3 is a schematic structural view of the blocking plate in the present invention;

[0024] Figure 4 is a schematic structural view of the No. 3 belt in the present invention;

[0025] Figure 5 is a schematic structural view of the short board in the present invention;

[0026] Figure 6 is a schematic structural view of the sliding block in the present invention;

[0027] Figure 7 is a partial structural cross-sectional view of the oil box in the present invention;

[0028] Figure 8 is a schematic structural view of the collection box in the present invention.

[0029] In the figure: 1. ATE body; 11. Conveyor track; 12. Support frame; 13. Servo motor; 14. First rotating shaft; 15. First belt; 16. Pushing plate; 2. Chip holder; 21. Electric cylinder; 22. Test plug; 3. Hydraulic cylinder; 31. Blocking plate; 32. First oil pipe; 33. Second oil pipe; 4. Extrusion block; 41. Oil box; 42. Sliding block; 43. Extrusion plate; 44. First elastic member; 5. Second rotating shaft; 51. Second belt; 52. Pulley; 53. Third belt; 6. Fixed plate; 61. Connecting frame; 62. First rotating rod; 63. Extension frame; 7. Second rotating rod; 71. Short board; 72. Short rod; 8. Blanking chute; 81. Collection box; 9. Sliding plate; 91. Limiting plate. Detailed implementation mode

[0030] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation modes.

[0031] As Figures 1 to 4 shown, a Micro-LED chip automatic continuous detection device described in an embodiment of the present invention includes an ATE body 1; a conveying track 11 is fixedly connected to the ATE body 1, and the conveying track 11 is arranged in a double channel; a support frame 12 is fixedly connected to the outer wall of the ATE body 1; a servo motor 13 is fixedly connected to the support frame 12; two first rotating shafts 14 are rotatably connected to the conveying track 11 near the servo motor 13, and the output end of the servo motor 13 is connected to the bottom end of one of the first rotating shafts 14; a first belt 15 is sleeved between the two first rotating shafts 14; two pushing plates 16 are fixedly connected to the outer wall of the first belt 15, and the two pushing plates 16 are slidably connected to the conveying track 11; a connection test component is arranged on the ATE body 1, and the connection test component is used for testing the chip connection and electrical performance; when testing the electrical performance of the Micro-LED chip, the ATE body 1 is used as the main detection device for testing the electrical performance of the Micro-LED chip, the conveying track 11 is fixed on the ATE body 1 and arranged in a double channel, the chips are alternately placed in the double channels of the conveying track 11, the chips are placed at the front end of the pushing plate 16, at this time, the output end of the servo motor 13 on the support frame 12 drives one of the first rotating shafts 14 to rotate forward, synchronously drives the first belt 15 connected to the other first rotating shaft 14 to rotate, the first belt 15 drives the two pushing plates 16 to slide on the conveying track 11, one pushing plate 16 pushes one chip to the connection test component for testing, and the other pushing plate 16 returns to the feeding place synchronously to wait for the next chip pushing, after the electrical performance test of the previous chip is completed, it is taken away, the output end of the servo motor 13 rotates reversely, and alternately pushes the latter chip to the connection test component for automatic detection, which plays a role in alternately and automatically continuously testing the electrical performance of the Micro-LED chip, replaces the traditional single-chip testing method, shortens the testing time in large-scale production, and thus improves the overall chip production efficiency.

[0032] As Figures 1 to 3As shown, a plurality of chip seats 2 are provided on the conveying track 11; the connection test assembly includes an electric cylinder 21 and a test plug 22; the two electric cylinders 21 are fixedly connected to the ATE body 1, and the two electric cylinders 21 are respectively located in the middle of the double channels of the conveying track 11; the test plug 22 is fixedly connected to the output end of the electric cylinder 21; when automatically and alternately continuously detecting Micro-LED chips, the chips are uniformly placed on the chip seats 2. First, a pushing plate 16 pushes a chip seat 2 with a chip to the lower part of an electric cylinder 21. At this time, the output end of the electric cylinder 21 automatically extends to drive the test plug 22 to dock with the chip, and the electrical performance test of the chip starts. Another pushing plate 16 has a chip seat 2 with another chip placed at its front end. After the test plug 22 docks with the chip, the pushing plate 16 immediately returns, and another pushing plate 16 pushes the chip seat 2 to the lower part of another electric cylinder 21. The output end of the other electric cylinder 21 automatically extends to drive another test plug 22 to dock with another chip for testing, and the chip seat 2 with the chip that has been tested and completed is taken away by the blanking device, playing a role in automatically and alternately continuously docking and detecting Micro-LED chips.

[0033] As Figures 1 to 4 , Figure 6 , Figure 7 shown, a hydraulic cylinder 3 is fixedly connected to the conveying track 11; the output end of the hydraulic cylinder 3 is fixedly connected to a sealing plate 31; the two input ends of the hydraulic cylinder 3 are respectively fixedly connected to a first oil pipe 32 and a second oil pipe 33; a transmission assembly is provided on the ATE body 1, and the transmission assembly is used to drive the output end of the hydraulic cylinder 3 to expand and contract; when the pushing plate 16 pushes the chip seat 2 with a Micro-LED chip to the detection position, the transmission assembly is triggered during the process of the pushing plate 16 sliding close to the detection position. The transmission assembly squeezes the hydraulic oil and transports it to the inside of the hydraulic cylinder 3 through the first oil pipe 32 or the second oil pipe 33, thereby driving the output end of the hydraulic cylinder 3 to reciprocate and expand and contract, and the sealing plate 31 synchronously realizes the alternate closing of the double channels of the conveying track 11, which can assist in limiting the position when the chip seat 2 is transported to the detection position and improve the accuracy of the connection between the test plug 22 and the chip.

[0034] The transmission assembly includes an extrusion block 4, an oil box 41, a sliding block 42, an extrusion plate 43, and a first elastic member 44; the extrusion block 4 is fixedly connected to the side of the pushing plate 16 away from the first rotating shaft 14; two oil boxes 41 are fixedly connected to the ATE body 1, the two oil boxes 41 are respectively communicated with the first oil pipe 32 and the second oil pipe 33, and the two oil boxes 41 are located on both sides of the conveying track 11; the sliding block 42 is slidably connected to the inner wall of the oil box 41, and the extrusion block 4 is arranged corresponding to the sliding block 42; the extrusion plate 43 is slidably connected to the inner wall of the oil box 41, and the round rod end of the extrusion plate 43 is fixedly connected to the sliding block 42; the first elastic member 44 is sleeved on the outer wall of the round rod end of the extrusion plate 43; when controlling the telescopic movement of the output end of the hydraulic cylinder 3, a pushing plate 16 pushes the chip seat 2 to slide, and during the process of approaching the detection position, the extrusion block 4 extrudes the inclined surface of the sliding block 42, squeezing the sliding block 42 into the interior of the oil box 41, the sliding block 42 synchronously drives the extrusion plate 43 to extrude the hydraulic oil inside the oil box 41, the first elastic member 44 is pulled and stressed, and the hydraulic oil is sent to the interior of the hydraulic cylinder 3 through the first oil pipe 32, so that the output end of the hydraulic cylinder 3 drives the sealing plate 31 to slide close to this oil box 41, realizing the road closure of a single channel on the conveying track 11. When the other pushing plate 16 slides to extrude the sliding block 42 inside the other oil box 41, the hydraulic oil inside the other oil box 41 is extruded and sent to the interior of the hydraulic cylinder 3 through the second oil pipe 33, realizing the road closure of another single channel on the conveying track 11, playing a role in alternately closing the road by controlling the telescopic movement of the output end of the hydraulic cylinder 3 to drive the sealing plate 31.

[0035] As Figures 1 to 5 shown, two second rotating shafts 5 are rotatably connected to the side of the ATE body 1 away from the two first rotating shafts 14; a second belt 51 is sleeved between the two second rotating shafts 5; belt pulleys 52 are fixedly connected to the adjacent first rotating shaft 14 and second rotating shaft 5; a third belt 53 is sleeved between the two belt pulleys 52; a pulling mechanism is arranged on the outer wall of the second belt 51, and the pulling mechanism is used for pulling the tested chips; when discharging the chips after the electrical performance test, while the output end of the servo motor 13 drives the two first rotating shafts 14 to rotate, it synchronously drives the two belt pulleys 52 connected by the third belt 53 to rotate, and then drives the two second rotating shafts 5 connected by the second belt 51 to rotate, so that the two pulling mechanisms on the second belt 51 alternately pull and discharge the tested chips, playing a role in automatically and continuously discharging the chips.

[0036] The pulling mechanism includes a fixed plate 6, a connecting frame 61, a first rotating rod 62, an extension frame 63 and a matching component; the two fixed plates 6 are fixedly connected to the outer wall of the second belt 51, and the two fixed plates 6 slide on the conveying track 11; the two connecting frames 61 are fixedly connected to the side of the fixed plate 6 close to the first rotating shaft 14; the first rotating rod 62 is rotatably connected to the connecting frame 61 through a first torsion spring; the extension frame 63 is fixedly connected to the outer wall of the first rotating rod 62; the matching component is arranged on the extension frame 63, and the matching component is used to hook and pull the chip seat 2 to move; when the second belt 51 rotates with the output end of the servo motor 13, the two fixed plates 6 on the second belt 51 slide on the conveying track 11 synchronously. While one fixed plate 6 slides forward, the other fixed plate 6 slides backward. The two connecting frames 61 cooperate with the extension frame 63 to extend the length, so that the matching component can hook and pull the chip seat 2 with chips to slide and unload. The first rotating rod 62 cooperates with the first torsion spring to assist the matching component to hook and pull the chip seat 2, playing a role in pulling and unloading the chips.

[0037] The matching component includes a second rotating rod 7, a short plate 71 and a short rod 72; the second rotating rod 7 is rotatably connected to the extension frame 63 through a second torsion spring; the short plate 71 is fixedly connected to the outer wall of the second rotating rod 7; the four short rods 72 are respectively fixedly connected to the four corners of the chip seat 2; when one fixed plate 6 approaches the detection position as the second belt 51 rotates forward, the two short rods 72 on the chip seat 2 respectively press the inclined surfaces of the two short plates 71. At the same time, the first rotating rod 62 cooperates with the extension frame 63 to assist in rotating, and the first torsion spring is stressed until the short plate 71 is pressed into the inner wall of the extension frame 63 as the second rotating rod 7 rotates, and the second torsion spring is stressed. The short rod 72 presses and crosses the short plate 71. At this time, the two torsion springs drive the extension frame 63 and the second rotating rod 7 to reset. When the second belt 51 rotates backward, the angle of the short plate 71 is limited by being stuck by the inner wall of the extension frame 63. As the two fixed plates 6 slide, two of the four short rods 72 hooked by the two short plates 71 are pulled to slide, and the chip seat 2 with chips is hooked and pulled to unload, playing a role in automatically unloading the chips.

[0038] Such as Figure 1 、 Figure 3 and Figure 8As shown, blanking grooves 8 are respectively formed in the double channels of the conveying track 11; a collection box 81 is arranged at the bottom end of the conveying track 11, and the two collection boxes 81 are located below the blanking grooves 8; when automatically hooking and blanking the chip socket 2 with a chip, the two collection boxes 81 are placed directly below the two blanking grooves 8. By using the two blanking grooves 8 which are respectively formed in the two channels of the conveying track 11 and are located at the sliding track of the fixing plate 6, the chip socket 2 is limited to slide by being hooked on the inner wall of the conveying track 11 until the chip socket 2 reaches the position of the blanking groove 8 and stops sliding. Then the chip socket 2 falls along the inner wall of the blanking groove 8 into the interior of the collection box 81 for temporary storage. When there are too many chips collected in the collection box 81, it can be taken away. This plays a role in collecting chips. At the same time, the four short rods 72 act as supports, which can reduce the risk of chips being stacked and damaged by pressure.

[0039] A sliding plate 9 is slidably connected to the inner wall of the collection box 81; a second elastic member is fixedly connected between the bottom end of the sliding plate 9 and the inner wall of the collection box 81; when the chips are stacked in the collection box 81, the second elastic member supports the sliding plate 9 on the inner wall of the collection box 81, so that when each chip socket 2 with a chip is collected, the sliding plate 9 slides down by the height of one chip socket 2 and the short rod 72 under the influence of the gravity of the chip socket 2 and the chips. When the first chip socket 2 lands on the sliding plate 9, it is lower than the bottom position of the conveying track 11, which is convenient for taking away the collection box 81 and will not cause the collection box 81 to be difficult to move due to the chip being stuck at the blanking groove 8. This plays a role in carrying the stacked chips and reduces the risk of the collected chips being damaged when falling from a high place.

[0040] Two limiting plates 91 are fixedly connected to the bottom end of the conveying track 11; the two limiting plates 91 are respectively located below the two blanking grooves 8; after the collection box 81 is taken away when there are too many chips collected in it, by using the two limiting plates 91 to be respectively fixed at the blanking groove 8 for limiting, the empty collection box 81 can be directly pushed in along the inclined surface of the limiting plate 91, which is convenient for quickly replacing the collection box 81.

[0041] Working process: When performing electrical performance tests on Micro-LED chips, the ATE body 1 is used as the main detection device for the electrical performance tests of Micro-LED chips. The conveying track 11 is fixed on the ATE body 1 and set to be dual-channel. The chips are alternately placed in the dual-channel of the conveying track 11. The chips are placed at the front end of the pushing plate 16. At this time, the output end of the servo motor 13 on the support frame 12 drives a first rotating shaft 14 to rotate forward, synchronously driving the first belt 15 connected to the other first rotating shaft 14 to rotate. The first belt 15 drives the two pushing plates 16 to slide on the conveying track 11. One pushing plate 16 pushes one chip to the connection test component for testing, while the other pushing plate 16 returns to the feeding place synchronously to wait for the next chip pushing. After the electrical performance test of the previous chip is completed, it is taken away. The output end of the servo motor 13 rotates reversely, alternately pushing the next chip to the connection test component for automatic detection, playing the role of alternately and automatically continuously testing the electrical performance of Micro-LED chips, replacing the traditional single-chip testing method, shortening the testing time in large-scale production, and thus improving the overall chip production efficiency; When performing automatic and alternating continuous detection on Micro-LED chips, the chips are uniformly placed on the chip holder 2. First, a pushing plate 16 pushes a chip holder 2 with a chip under the cylinder 21. At this time, the output end of the cylinder 21 automatically extends to drive the test plug 22 to dock with the chip, starting the electrical performance test of the chip. Another chip holder 2 with a chip is placed at the front end of the other pushing plate 16. After the test plug 22 docks with the chip, the pushing plate 16 immediately returns. The other pushing plate 16 then pushes the chip holder 2 under the other cylinder 21. The output end of the other cylinder 21 automatically extends to drive another test plug 22 to dock with another chip for testing, and the previous chip holder 2 with the tested chip is taken away by the blanking device, playing the role of automatically and alternately continuously docking and detecting Micro-LED chips;

[0042] When the push plate 16 pushes the chip holder 2 with the Micro-LED chip to the detection position, the transmission component is triggered during the process of the push plate 16 sliding close to the detection position. The transmission component squeezes the hydraulic oil and transports it to the inside of the hydraulic cylinder 3 through the first oil pipe 32 or the second oil pipe 33, thereby driving the output end of the hydraulic cylinder 3 to reciprocate telescopically. The sealing plate 31 synchronously realizes the dual-channel alternating road blocking of the conveying track 11, which can assist in limiting the position when the chip holder 2 is conveyed to the detection position and improve the accuracy of the connection between the test plug 22 and the chip. When controlling the telescopic movement of the output end of the hydraulic cylinder 3, one push plate 16 pushes the chip holder 2 to slide. During the process of approaching the detection position, the extrusion block 4 squeezes the inclined surface of the sliding block 42, squeezing the sliding block 42 into the oil box 41. The sliding block 42 synchronously drives the extrusion plate 43 to squeeze the hydraulic oil inside the oil box 41, and the first elastic member 44 is pulled and stressed. The hydraulic oil is sent to the inside of the hydraulic cylinder 3 through the first oil pipe 32, causing the output end of the hydraulic cylinder 3 to drive the sealing plate 31 to slide close to this oil box 41, realizing the road blocking of a single channel on the conveying track 11. When the other push plate 16 slides and squeezes the sliding block 42 inside the other oil box 41, the hydraulic oil inside the other oil box 41 is squeezed and sent to the inside of the hydraulic cylinder 3 through the second oil pipe 33, realizing the road blocking of another single channel on the conveying track 11, playing a role in controlling the telescopic movement of the output end of the hydraulic cylinder 3 to drive the sealing plate 31 to alternately block the road.

[0043] When blanking the chips that have completed the electrical performance test, while the output end of the servo motor 13 drives the two first rotating shafts 14 to rotate, it simultaneously drives the two pulleys 52 connected by the third belt 53 to rotate. Subsequently, it drives the two second rotating shafts 5 connected by the second belt 51, enabling the two pulling mechanisms on the second belt 51 to alternately pull and blank the tested chips, playing a role in automatically and continuously blanking the chips; when the second belt 51 rotates with the output end of the servo motor 13, the two fixing plates 6 on the second belt 51 slide synchronously on the conveying track 11. While one fixing plate 6 slides forward, the other fixing plate 6 slides backward. The two connecting frames 61 cooperate with the extension frame 63 to extend the length, enabling the matching component to hook and pull the chip holder 2 with the chip to slide and blank. The first rotating rod 62 cooperates with the first torsion spring to assist the matching component in hooking and pulling the chip holder 2, playing a role in pulling and blanking the chips; when one fixing plate 6 approaches the detection position as the second belt 51 rotates forward, the two short rods 72 on the chip holder 2 respectively press the inclined surfaces of the two short plates 71. At the same time, the first rotating rod 62 cooperates with the extension frame 63 to assist in rotating, and the first torsion spring is stressed until the short plate 71 is pressed into the inner wall of the extension frame 63 as the second rotating rod 7 rotates, and the second torsion spring is stressed. The short rod 72 presses and crosses the short plate 71. At this time, the two torsion springs drive the extension frame 63 and the second rotating rod 7 to reset. When the second belt 51 rotates in the reverse direction, the angle of the short plate 71 is limited by being stuck by the inner wall of the extension frame 63. As the two fixing plates 6 slide, they pull two of the four short rods 72 hooked by the two short plates 71 to slide, hooking and pulling the chip holder 2 with the chip to blank, playing a role in automatically blanking the chips;

[0044] When automatically hooking and discharging the socket 2 with a chip, two collection boxes 81 are placed directly below the two discharging slots 8. The two discharging slots 8 are respectively opened on two channels of the conveying track 11 and are located at the sliding track of the fixing plate 6. The socket 2 is limited to slide by being hooked on the inner wall of the conveying track 11 until the socket 2 reaches the position of the discharging slot 8 and stops sliding. The socket 2 falls along the inner wall of the discharging slot 8 into the interior of the collection box 81 for temporary storage and can be taken away when there are too many chips collected in the collection box 81, playing a role in chip collection. At the same time, the four short rods 72 act as supports, which can reduce the risk of stacking and pressing damage between chips. When the chips are stacked in the collection box 81, the second elastic member supports the sliding plate 9 on the inner wall of the collection box 81, so that every time a socket 2 with a chip is collected, the sliding plate 9 slides down by the height of a socket 2 and a short rod 72 under the influence of the gravity of the socket 2 and the chips. When the first socket 2 lands on the sliding plate 9, it is lower than the bottom position of the conveying track 11, which is convenient for taking away the collection box 81 and will not make it difficult to move the collection box 81 due to chips being stuck at the discharging slot 8, playing a role in bearing the stacked chips and reducing the risk of the collected chips being damaged when falling from a high place. After the collection box 81 is taken away when there are too many chips collected in it, the two limiting plates 91 are respectively fixed at the discharging slot 8 for limiting, and the empty collection box 81 can be directly pushed in along the inclined surface of the limiting plate 91, which is convenient for quickly replacing the collection box 81.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An automatic continuous detection device for Micro-LED chips, characterized in that: It includes an ATE body; a conveying track is fixedly connected to the ATE body, and the conveying track is arranged in a double-channel manner; a support frame is fixedly connected to the outer wall of the ATE body; a servo motor is fixedly connected to the support frame; two first rotating shafts are rotatably connected to the conveying track near the servo motor, and the output end of the servo motor is connected to the bottom end of one of the first rotating shafts; a first belt is sleeved between the two first rotating shafts; two pushing plates are fixedly connected to the outer wall of the first belt, and the two pushing plates are slidably connected to the conveying track; a connection testing component is arranged on the ATE body, and the connection testing component is used for testing chip connection and electrical performance.

2. The automatic continuous detection device for Micro-LED chips according to claim 1, wherein: A plurality of chip seats are arranged on the conveying track; the connection testing component includes an electric cylinder and a test plug; the two electric cylinders are fixedly connected to the ATE body, and the two electric cylinders are respectively located in the middle of the double channels of the conveying track; the test plug is fixedly connected to the output end of the electric cylinder.

3. The automatic continuous detection device for Micro-LED chips according to claim 1, wherein: A hydraulic cylinder is fixedly connected to the conveying track; a sealing plate is fixedly connected to the output end of the hydraulic cylinder; the two input ends of the hydraulic cylinder are respectively fixedly connected to a first oil pipe and a second oil pipe; a transmission component is arranged on the ATE body, and the transmission component is used for driving the output end of the hydraulic cylinder to stretch.

4. The automatic continuous detection device for a Micro-LED chip according to claim 3, wherein: The transmission component includes a pressing block, an oil box, a sliding block, a pressing plate and a first elastic member; the pressing block is fixedly connected to the side of the pushing plate away from the first rotating shaft; the two oil boxes are fixedly connected to the ATE body, the two oil boxes are respectively communicated with the first oil pipe and the second oil pipe, and the two oil boxes are located on both sides of the conveying track; the sliding block is slidably connected to the inner wall of the oil box, and the pressing block is arranged corresponding to the sliding block; the pressing plate is slidably connected to the inner wall of the oil box, and the round rod end of the pressing plate is fixedly connected to the sliding block; the first elastic member is sleeved on the outer wall of the round rod end of the pressing plate.

5. The automatic continuous detection device for a Micro-LED chip according to claim 2, wherein: Two second rotating shafts are rotatably connected to the side of the ATE body away from the two first rotating shafts; a second belt is sleeved between the two second rotating shafts; belt wheels are fixedly connected to the adjacent first rotating shaft and second rotating shaft; a third belt is sleeved between the two belt wheels; a pulling mechanism is arranged on the outer wall of the second belt, and the pulling mechanism is used for pulling the tested chips.

6. The automatic continuous detection device for Micro-LED chips according to claim 5, characterized in that: The pulling mechanism includes a fixing plate, a connecting frame, a first rotating rod, an extending frame and a matching component; the two fixing plates are fixedly connected to the outer wall of the second belt, and the two fixing plates slide on the conveying track; the two connecting frames are relatively fixedly connected to the side of the fixing plate close to the first rotating shaft; the first rotating rod is rotatably connected to the connecting frame through a first torsion spring; the extending frame is fixedly connected to the outer wall of the first rotating rod; the matching component is arranged on the extending frame, and the matching component is used for hooking and pulling the chip seat to move.

7. An automatic continuous detection device for Micro-LED chips according to claim 6, characterized in that: The matching component includes a second rotating rod, a short board and a short rod; the second rotating rod is rotatably connected to the extending frame through a second torsion spring; the short board is fixedly connected to the outer wall of the second rotating rod; the four short rods are respectively fixedly connected to the four corners of the chip seat.

8. The automatic continuous detection device for a Micro-LED chip according to claim 1, wherein: Feeding slots are respectively opened on the double channels of the conveying track; a collection box is arranged at the bottom end of the conveying track, and the two collection boxes are located below the feeding slots.

9. The automatic continuous detection device for Micro-LED chips according to claim 8, characterized in that: A sliding plate is slidably connected to the inner wall of the collection box; a second elastic member is fixedly connected between the bottom end of the sliding plate and the inner wall of the collection box.

10. The automatic continuous detection device for Micro-LED chips according to claim 9, characterized in that: Two limiting plates are fixedly connected to the bottom end of the conveying track; the two limiting plates are respectively located below the two blanking grooves.

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