Micro-led chip automatic continuous detection device

By employing a dual-channel transport track and connecting test components in the Micro-LED chip testing device, automatic alternating electrical performance testing of Micro-LED chips was achieved, solving the problem of excessively long testing time in large-scale production, improving production efficiency, and reducing the risk of chip damage.

CN120294543BActive Publication Date: 2025-10-24SHANDONG QIANYUAN SEMICON TECH CO LTD
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Patent Information

Application Number
CN202510484727.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2025-10-24
Estimated Expiration
2045-04-17

AI Technical Summary

Technical Problem

Existing Micro-LED chip electrical performance testing equipment uses a single-chip testing method in large-scale production, which results in excessively long testing times and affects production efficiency.

Method used

An automatic continuous testing device for Micro-LED chips was designed. It adopts a dual-channel conveyor track and connection test components on the ATE body, uses servo motors and hydraulic cylinders to realize automatic alternating electrical performance testing of chips, ensures accurate chip docking testing through the alternating movement of push plate and sealing plate, and realizes automatic chip unloading through belt pulling mechanism.

Benefits of technology

It realizes automatic and continuous detection of Micro-LED chips, shortens test time, improves production efficiency, reduces resource loss, and reduces the risk of chip damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application belongs to the technical field of electrical performance test, and particularly relates to a Micro-LED chip automatic continuous detection device, which comprises an ATE body; a conveying track is fixedly connected to the ATE body, and the conveying track is provided with double channels; a supporting frame is fixedly connected to the outer wall of the ATE body; the automatic continuous alternating electrical performance test of the Micro-LED chip is realized through the conveying track and the connecting test assembly arranged on the ATE body, the traditional detection mode is replaced, the test time of large-scale production is shortened, the efficiency of chip production is improved, the pushing plate on the conveying track is driven by the servo motor on the ATE body, the chip is alternately pushed to the connecting test assembly for electrical performance test, the blocking plate controlled by the hydraulic cylinder alternately blocks the road to ensure that the chip is accurately connected to the test plug, after the test is completed, the pulling mechanism driven by the No. 2 belt hooks and pulls the chip seat to the discharge groove and slides into the collection box, and the sliding plate in the collection box descends along with the gravity when the chips are stacked, so that the risk of chip damage is reduced.
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Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electrical performance testing, and specifically relates to a Micro-LED chip automatic continuous detection device. BACKGROUND

[0002] The Micro-LED chip automatic continuous detection device is an automatic equipment for efficiently and accurately detecting the performance and quality of Micro-LED chips, which integrates optical, electrical and mechanical systems and can realize chip detection, data analysis and sorting, and is widely used in the fields of Micro-LED display screen manufacturing, semiconductor production and scientific research.

[0003] A patent application with the publication number CN117630646A discloses a chip electrical performance testing mechanism, which comprises a base, a three-axis adjusting assembly, a testing assembly and a to-be-tested PCB board placing base for placing a to-be-tested PCB board. The three-axis adjusting assembly is installed on one side of the base along the negative direction of the Y axis. 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 the electrical performance of Micro-LED chips is tested, the above-mentioned testing device can reduce the risk of plug damage, but in actual application, these devices often adopt a single chip testing mode. Since the defect rate of Micro-LED chips is high, the single chip testing mode is difficult to meet the demand of large-scale production. Each chip needs to be tested independently, which greatly prolongs the testing time in large-scale production, and further affects the overall production efficiency.

[0005] Therefore, the application provides a Micro-LED chip automatic continuous detection device. SUMMARY

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

[0007] The technical scheme adopted by the present application to solve its technical problems is: the automatic continuous detection device for the Micro-LED chip comprises an ATE body; a conveying track is fixedly connected to the ATE body, and the conveying track is provided with double channels; 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 shafts are rotatably connected to the conveying track close to the servo motor, and the output end of the servo motor is connected to the bottom end of one of the first shafts; a first belt is sleeved between the two first shafts; two push plates are fixedly connected to the outer wall of the first belt, and the two push plates are slidably connected to the conveying track; a connection test assembly is arranged on the ATE body, and the connection test assembly is used for testing the connection and electrical performance of the chip.

[0008] Preferably, a plurality of chip seats are arranged on the conveying track; the connection test assembly comprises electric cylinders and test plugs; 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 plugs are fixedly connected to the output ends of the electric cylinders.

[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; a first oil pipe and a second oil pipe are respectively fixedly connected to the two input ends of the hydraulic cylinder; a transmission assembly is arranged on the ATE body, and the transmission assembly is used for driving the output end of the hydraulic cylinder to stretch and retract.

[0010] Preferably, the transmission assembly comprises an extrusion block, an oil box, a sliding block, an extrusion plate and a first elastic member; the extrusion block is fixedly connected to the side of the push plate away from the first shaft; two oil boxes are fixedly connected to the ATE body, the two oil boxes are respectively connected to the first oil pipe and the second oil pipe, and the two oil boxes are located on the two sides of the conveying track; the sliding block is slidably connected to the inner wall of the oil box, and the extrusion block and the sliding block are correspondingly arranged; the extrusion plate is slidably connected to the inner wall of the oil box, and the round rod end of the extrusion 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 extrusion plate.

[0011] Preferably, two second shafts are rotatably connected to the side of the ATE body away from the two first shafts; a second belt is sleeved between the two second shafts; a belt pulley is fixedly connected to each of the first shaft and the second shaft close to each other; 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 for pulling the detected chip.

[0012] Preferably, the pulling mechanism comprises a fixed plate, a connecting frame, a No. 1 rotating rod, an extension frame and a matching assembly; two fixed plates are fixedly connected to the outer wall of the No. 2 belt, and the two fixed plates slide on the conveying track; two connecting frames are fixedly connected to the fixed plate on the side close to the No. 1 rotating shaft; the No. 1 rotating rod is rotatably connected to the connecting frame through a No. 1 torsional spring; the extension frame is fixedly connected to the outer wall of the No. 1 rotating rod; the matching assembly is arranged on the extension frame, and the matching assembly is used for hooking and pulling the chip seat to move.

[0013] Preferably, the matching assembly comprises a No. 2 rotating rod, a short plate and a short rod; the No. 2 rotating rod is rotatably connected to the extension frame through a No. 2 torsional spring; the short plate is fixedly connected to the outer wall of the No. 2 rotating rod; four short rods are respectively fixedly connected to the four corners of the chip seat.

[0014] Preferably, a discharging groove is arranged on the double-channel conveying track; the bottom end of the conveying track is provided with a collecting box, and the two collecting boxes are located below the discharging grooves.

[0015] Preferably, a sliding plate is slidably connected to the inner wall of the collecting box; a No. 2 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 discharging grooves.

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

[0018] 1. The Micro-LED chip automatic continuous detection device realizes automatic continuous alternating electrical performance test of the Micro-LED chip through the conveying track and the connecting test assembly arranged on the ATE body, effectively replaces the traditional detection mode, greatly shortens the test time of large-scale production, improves the efficiency of the whole chip production, and reduces the resource loss by using a single servo motor to control multiple structures to operate, drives the pushing plate on the conveying track through the servo motor on the ATE body, alternately pushes the chip to the connecting test assembly for electrical performance test, and alternately seals the road through the sealing plate controlled by the hydraulic cylinder to ensure accurate butt joint of the chip and the test plug, after the test is completed, the pulling mechanism driven by the No. 2 belt hooks and pulls the chip seat to the discharging groove and slides into the collecting box, the sliding plate in the collecting box descends with gravity when the chips are stacked, reducing the risk of chip damage, and the limiting plate ensures that the collecting box is conveniently and quickly replaced after being taken down.

[0019] 2. The Micro-LED chip automatic continuous detection device provided in the application, first, the chip is placed on the chip seat and is pushed to the test area in turn, at this time, the test plug is driven by the output end of the electric cylinder to contact the chip for electrical performance test; when the test of one chip seat is completed, the corresponding channel is blocked by the blocking plate, the next chip seat is pushed to the channel for test, and the test is alternately carried out, so that the test efficiency is improved; the chip seat after test is hooked and pulled by the pulling mechanism to the discharging groove and slides into the collection box, the sliding plate is lowered under the gravity to ensure that the chip seat is discharged alone each time, and at the same time, the limiting plate ensures that the collection box is conveniently and quickly replaced, the whole process realizes automatic continuous test and discharging of the chip, the test time in large-scale production is greatly shortened, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The application will be further described below with reference to the drawings.

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

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

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

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

[0025] Figure 5 is a structural schematic view of the short plate in the application;

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

[0027] Figure 7 is a partial structural sectional view of the oil box in the application;

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

[0029] In the figure: 1, ATE body; 11, conveying track; 12, support frame; 13, servo motor; 14, No. 1 rotating shaft; 15, No. 1 belt; 16, pushing plate; 2, chip seat; 21, electric cylinder; 22, test plug; 3, hydraulic cylinder; 31, blocking plate; 32, No. 1 oil pipe; 33, No. 2 oil pipe; 4, extrusion block; 41, oil box; 42, sliding block; 43, extrusion plate; 44, No. 1 elastic member; 5, No. 2 rotating shaft; 51, No. 2 belt; 52, belt pulley; 53, No. 3 belt; 6, fixed plate; 61, connecting frame; 62, No. 1 rotating rod; 63, extension frame; 7, No. 2 rotating rod; 71, short plate; 72, short rod; 8, discharging groove; 81, collection box; 9, sliding plate; 91, limiting plate. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0031] As shown in Figures 1 to 4 The automatic continuous detection device for Micro-LED chip according to the embodiment of the present application comprises an ATE body 1; a conveying track 11 is fixedly connected to the ATE body 1, and the conveying track 11 is provided with double channels; 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 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 shafts 14; a first belt 15 is sleeved between the two first shafts 14; two push plates 16 are fixedly connected to the outer wall of the first belt 15, and the two push plates 16 are slidably connected to the conveying track 11; a connection test assembly is arranged on the ATE body 1, and the connection test assembly is used for testing the connection and electrical performance of the chip; when the electrical performance of the Micro-LED chip is tested, the ATE body 1 is used as the main detection equipment for testing the electrical performance of the Micro-LED chip, the conveying track 11 is fixedly arranged on the ATE body 1 and provided with double channels, the chips are alternately placed in the double channels of the conveying track 11, the chips are placed at the front end of the push plates 16, at this time, the output end of the servo motor 13 on the support frame 12 drives one of the first shafts 14 to rotate forward, synchronously drives the first belt 15 connected to the other first shaft 14 to rotate, the first belt 15 drives the two push plates 16 to slide on the conveying track 11, one of the push plates 16 pushes one chip to the connection test assembly for testing, and the other push plate 16 is synchronously returned to the feeding position to wait for the next time of pushing the chip, after the electrical performance test of the previous chip is completed, the previous chip is taken away, the output end of the servo motor 13 is reversely rotated, the next chip is alternately pushed to the connection test assembly for automatic detection, which plays a role of alternately and automatically continuously testing the electrical performance of the Micro-LED chip, replaces the traditional single chip test mode, shortens the test time in large-scale production, and further improves the efficiency of the whole chip production.

[0032] As shown in Figures 1 to 3As shown, the conveying track 11 is provided with a plurality of chip seats 2; the connection test assembly includes electric cylinders 21 and test plugs 22; 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 the Micro-LED chip is automatically and alternately continuously detected, the chips are uniformly placed on the chip seats 2, one chip seat 2 with a chip is first pushed to the lower side of one electric cylinder 21 by one push plate 16, at this time, the output end of the electric cylinder 21 automatically extends to drive the test plug 22 to be connected with the chip, the test of the electrical performance of the chip is started, the front end of the other push plate 16 is placed with another chip seat 2 with a chip, after the test plug 22 is connected with the chip, the push plate 16 returns immediately, and the other push plate 16 pushes the chip seat 2 to the lower side of the other electric cylinder 21, the output end of the other electric cylinder 21 automatically extends to drive the other test plug 22 to be connected with the other chip for testing, and the chip seat 2 with the chip which has been tested is taken away by the discharging device, so as to realize the automatic and alternate continuous butt joint detection of the Micro-LED chip.

[0033] As shown in Figures 1 to 4 , Figure 6 , Figure 7 , the conveying track 11 is fixedly connected with a hydraulic cylinder 3; the output end of the hydraulic cylinder 3 is fixedly connected with a blocking plate 31; the two input ends of the hydraulic cylinder 3 are respectively fixedly connected with a first oil pipe 32 and a second oil pipe 33; the ATE body 1 is provided with a transmission assembly for driving the output end of the hydraulic cylinder 3 to stretch and retract; when the push plate 16 pushes the chip seat 2 with the Micro-LED chip to the detection position, the transmission assembly is triggered in the process that the push plate 16 slides close to the detection position, the transmission assembly extrudes hydraulic oil to be delivered to the inside of the hydraulic cylinder 3 through the first oil pipe 32 or the second oil pipe 33, so as to drive the output end of the hydraulic cylinder 3 to reciprocate, and the blocking plate 31 synchronously realizes the alternate blocking of the double channels of the conveying track 11, which can assist in limiting the chip seat 2 when it is conveyed to the detection position, and improve the accuracy of the connection between the test plug 22 and the chip.

[0034] The transmission assembly comprises 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 push plate 16 away from the first rotating shaft 14; two oil boxes 41 are fixedly connected to the ATE body 1, and the two oil boxes 41 are in communication with the first oil pipe 32 and the second oil pipe 33 respectively and are located on the two sides of the conveying track 11; the sliding block 42 is slidingly connected to the inner wall of the oil box 41, and the extrusion block 4 is correspondingly arranged on the sliding block 42; the extrusion plate 43 is slidingly 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 the output end of the hydraulic cylinder 3 is controlled to stretch and retract, one push plate 16 pushes the chip seat 2 to slide, and the extrusion block 4 extrudes the inclined surface of the sliding block 42 in the process of approaching the detection position, so that the sliding block 42 is extruded into the inside of the oil box 41, the sliding block 42 synchronously drives the extrusion plate 43 to extrude the hydraulic oil in the inside of the oil box 41, 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, the output end of the hydraulic cylinder 3 drives the blocking plate 31 to slide and approach the oil box 41, and the single channel on the conveying track 11 is blocked, when the other push plate 16 slides and extrudes the sliding block 42 in the inside of the other oil box 41, the hydraulic oil in the inside of the other oil box 41 is extruded and sent to the inside of the hydraulic cylinder 3 through the second oil pipe 33, the other single channel on the conveying track 11 is blocked, and the output end of the hydraulic cylinder 3 controls the stretching and retraction of the blocking plate 31 to alternately block the channels.

[0035] As shown in Figures 1 to 5 The ATE body 1 is rotationally connected with two second rotating shafts 5 on the side away from the two first rotating shafts 14; the two second rotating shafts 5 are sleeved with a second belt 51; the first rotating shaft 14 and the second rotating shaft 5 close to each other are fixedly connected with a belt pulley 52; the two belt pulleys 52 are sleeved with a third belt 53; the outer wall of the second belt 51 is provided with a pulling mechanism for pulling the tested chips; when the chips tested for electrical performance are discharged, the output end of the servo motor 13 drives the two first rotating shafts 14 to rotate, simultaneously drives the two belt pulleys 52 connected with the third belt 53 to rotate, and further drives the two second rotating shafts 5 connected with the second belt 51 to rotate, so that the two pulling mechanisms on the second belt 51 alternately pull the tested chips to be discharged, and the chips are automatically and continuously discharged.

[0036] The pulling mechanism includes a fixed plate 6, a connecting frame 61, a No. 1 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 No. 2 belt 51, and the two fixed plates 6 slide on the conveying track 11; the two connecting frames 61 are relatively fixed to the side of the fixed plate 6 close to the No. 1 rotating shaft 14; the No. 1 rotating rod 62 is rotatably connected to the connecting frame 61 through the No. 1 torsion spring; the extension frame 63 is fixed to the outer wall of the No. 1 rotating rod 62; the matching component is arranged on the extension frame 63, The coupling assembly is used to hook and pull the chip holder 2 to move; when the No. 2 belt 51 rotates along with the output end of the servo motor 13, the two fixed plates 6 on the No. 2 belt 51 slide synchronously on the conveying track 11, and one fixed plate 6 slides forward while 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 coupling assembly can hook and pull the chip holder 2 with the chip to slide and unload the material. The No. 1 rotating rod 62 cooperates with the No. 1 torsion spring to assist the coupling assembly in hooking and pulling the chip holder 2, thereby pulling and unloading the chip.

[0037] The matching assembly includes a No. 2 rotating rod 7, a short plate 71 and a short rod 72; the No. 2 rotating rod 7 is rotatably connected to the extension frame 63 through the No. 2 torsion spring; the short plate 71 is fixed to the outer wall of the No. 2 rotating rod 7; the four short rods 72 are respectively fixed to the four corners of the chip holder 2; when a fixed plate 6 approaches the detection position as the No. 2 belt 51 rotates forward, the two short rods 72 on the chip holder 2 squeeze the inclined surfaces of the two short plates 71 respectively, and at the same time, the No. 1 rotating rod 62 cooperates with the extension frame 63 to assist in rotation, and the No. 1 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, the No. 2 torsion spring is stressed, and the short rod 72 squeezes and passes over the short plate 71. At this time, the two torsion springs drive the extension frame 63 and the No. 2 rotating rod 7 to reset. When the No. 2 belt 51 rotates in the opposite direction, the angle of the short plate 71 is clamped and limited 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 slide, and the chip holder 2 with the chip is hooked and unloaded, thereby automatically unloading the chip.

[0038] like Figure 1 、 Figure 3 and Figure 8As shown, the double channels of the conveying track 11 are respectively provided with a discharging groove 8; the bottom end of the conveying track 11 is provided with a collecting box 81, and the two collecting boxes 81 are located below the discharging groove 8; when the chip seat 2 with the chip is automatically hooked and pulled to discharge, the two collecting boxes 81 are placed directly below the two discharging grooves 8, the two discharging grooves 8 are respectively arranged on the two channels of the conveying track 11 and located at the sliding track of the fixed plate 6, the chip seat 2 is limited to be hooked and slid on the inner wall of the conveying track 11, until the chip seat 2 reaches the position of the discharging groove 8 and stops sliding, the chip seat 2 falls along the inner wall of the discharging groove 8 and is temporarily stored in the inside of the collecting box 81, and when the chips collected in the collecting box 81 are too much, the collecting box 81 can be taken away, thereby playing a role in collecting the chips, and the four short rods 72 can reduce the risk of stacking and pressing the chips.

[0039] The inner wall of the collecting box 81 is slidably connected with a sliding plate 9; the bottom end of the sliding plate 9 and the inner wall of the collecting box 81 are fixedly connected with a second elastic member; when the chips are stacked in the collecting box 81, the second elastic member supports the sliding plate 9 on the inner wall of the collecting box 81, so that when each chip seat 2 with the chip is collected, the sliding plate 9 is affected by the gravity of the chip seat 2 and the chip, and slides down by the height of a chip seat 2 and a short rod 72, and the first chip seat 2 falls on the sliding plate 9, which is lower than the bottom of the conveying track 11, so that the collecting box 81 can be taken away conveniently, and the collecting box 81 cannot be moved due to the chip being stuck in the discharging groove 8, thereby playing a role in bearing the stacked chips and reducing the risk of damage to the collected chips falling from a high place.

[0040] The bottom end of the conveying track 11 is fixedly connected with two limiting plates 91; the two limiting plates 91 are respectively located below the two discharging grooves 8; when the collecting box 81 is taken away because the chips collected therein are too much, the two limiting plates 91 are respectively fixed at the discharging grooves 8 to limit, so that the empty collecting box 81 can be pushed along the inclined surface of the limiting plate 91, thereby facilitating the quick replacement of the collecting box 81.

[0041] Working process: when the Micro-LED chip is tested for electrical performance, the ATE body 1 is used as the main detection equipment for testing the electrical performance of the Micro-LED chip, the conveying track 11 is fixed on the ATE body 1 and is set as a double channel, the chips are placed in the double channel of the conveying track 11 alternately, and 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 shaft 14 to rotate forward, synchronously drives a first belt 15 connected with another first shaft 14 to rotate, the first belt 15 drives two pushing plates 16 to slide on the conveying track 11, one pushing plate 16 pushes one chip to the connecting test assembly for testing, and the other pushing plate 16 is returned to the feeding position synchronously to wait for the next time of pushing the chip. After the electrical performance of the previous chip is tested, the chip is taken away, the output end of the servo motor 13 reverses to rotate, and the next chip is pushed to the connecting test assembly alternately for automatic detection, which plays a role in automatically and continuously testing the electrical performance of the Micro-LED chip alternately, replaces the traditional single chip testing mode, shortens the testing time in large-scale production, and further improves the efficiency of the whole chip production; when the Micro-LED chip is automatically and alternately continuously detected, the chips are uniformly placed on the chip seat 2, one pushing plate 16 pushes one chip seat 2 with a chip to the lower side of one electric cylinder 21, at this time, the output end of the electric cylinder 21 automatically extends to drive the test plug 22 to be connected with the chip, and the electrical performance of the chip is tested. Another pushing plate 16 is placed at the front end of another chip seat 2 with a chip, the test plug 22 is connected with the chip after the test, the pushing plate 16 returns immediately, and the other pushing plate 16 pushes the chip seat 2 to the lower side of the other electric cylinder 21. The output end of the other electric cylinder 21 automatically extends to drive the other test plug 22 to be connected with the other chip for testing, and the chip seat 2 with the chip after the test is taken away by the discharging equipment, which plays a role in automatically and alternately continuously connecting and testing the Micro-LED chip;

[0042] When the pushing plate 16 pushes the chip holder 2 with the Micro-LED chip to the detection position, the transmission component is triggered during the sliding process of the pushing plate 16 close to the detection position. The transmission component squeezes the hydraulic oil through the No. 1 oil pipe 32 or the No. 2 oil pipe 33 and delivers it to the inside of the hydraulic cylinder 3, thereby driving the output end of the hydraulic cylinder 3 to reciprocate and extend. The blocking plate 31 simultaneously realizes the double-channel alternating 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 the output end of the hydraulic cylinder 3 is controlled to extend and retract, a pushing plate 16 pushes the chip holder 2 to slide, and when it is about to reach the detection position, the extrusion block 4 squeezes the inclined surface of the sliding block 42, which will The sliding block 42 squeezes into the interior of the oil box 41, and the sliding block 42 synchronously drives the squeezing plate 43 to squeeze the hydraulic oil inside the oil box 41. The No. 1 elastic member 44 is pulled and stressed, and the hydraulic oil is sent to the interior of the hydraulic cylinder 3 through the No. 1 oil pipe 32, so that the output end of the hydraulic cylinder 3 drives the blocking plate 31 to slide close to this oil box 41, thereby sealing a single channel on the conveying track 11. When the other pushing 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 interior of the hydraulic cylinder 3 through the No. 2 oil pipe 33, thereby sealing another single channel on the conveying track 11, thereby controlling the extension and retraction of the output end of the hydraulic cylinder 3 to drive the blocking plate 31 to alternately seal the channel.

[0043] When the chip is discharged after the electrical performance test is completed, the servo motor 13 output end drives the two No. 1 rotating shaft 14 to rotate, at the same time, synchronously drives the two pulleys 52 connected by the No. 3 belt 53 to rotate, and then drives the two No. 2 rotating shaft 5 connected by the No. 2 belt 51 to rotate, so that the two pulling mechanisms on the No. 2 belt 51 alternately pull the tested chip to discharge, which plays a role in automatic continuous discharge of the chip; when the No. 2 belt 51 rotates with the output end of the servo motor 13, the two fixed plates 6 on the No. 2 belt 51 slide on the conveying track 11 at the same time, one fixed plate 6 slides forward and 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 assembly can hook and pull the chip seat 2 with the chip to slide and discharge, the No. 1 rotating rod 62 cooperates with the No. 1 torsional spring to assist the matching assembly to hook the chip seat 2, which plays a role in pulling and discharging the chip; when one fixed plate 6 approaches the detection position with the forward rotation of the No. 2 belt 51, the two short rods 72 on the chip seat 2 respectively extrude the inclined surface of the two short plates 71, at the same time, the No. 1 rotating rod 62 cooperates with the extension frame 63 to assist the rotation, the No. 1 torsional spring is stressed, until the short plate 71 is pressed into the inner wall of the extension frame 63 with the rotation of the No. 2 rotating rod 7, the No. 2 torsional spring is stressed, the short rod 72 extrudes and passes through the short plate 71, at this time, the two torsional springs drive the extension frame 63 and the No. 2 rotating rod 7 to reset, when the No. 2 belt 51 reverses, the angle of the short plate 71 is limited by the inner wall of the extension frame 63, with the sliding of the two fixed plates 6, the two short rods 72 hooked by the two short plates 71 slide, the chip seat 2 with the chip is hooked and pulled to discharge, which plays a role in automatic discharge of the chip;

[0044] When the chip carrier 2 with the chip is automatically hooked and pulled off, two collecting boxes 81 are placed directly below the two offloading grooves 8, which are respectively arranged on the two channels of the conveying track 11 and located at the sliding tracks of the fixed plate 6. The chip carrier 2 is limited to be hooked and pulled on the inner wall of the conveying track 11, until the chip carrier 2 reaches the position of the offloading groove 8 and stops sliding, and then the chip carrier 2 falls along the inner wall of the offloading groove 8 and is temporarily stored in the inside of the collecting box 81, which can be taken away when the chips collected in the collecting box 81 are too much, thereby playing a role in collecting the chips. Meanwhile, the four short rods 72 can reduce the risk of stacking and damaging the chips. When the chips are stacked in the collecting box 81, the second elastic member supports the sliding plate 9 on the inner wall of the collecting box 81, so that the sliding plate 9 is affected by the gravity of the chip carrier 2 and the chips and slides down by the height of one chip carrier 2 and the short rod 72 when one chip carrier 2 with the chips is collected. The first chip carrier 2 falls on the sliding plate 9, which is lower than the bottom of the conveying track 11, thereby facilitating the taking away of the collecting box 81 and reducing the risk of damage to the collected chips due to the chips being stuck in the offloading groove 8. When the collecting box 81 is taken away due to the excessive chips collected therein, the two limiting plates 91 are respectively fixed at the limiting positions of the offloading grooves 8, so that the empty collecting box 81 can be directly pushed along the inclined surface of the limiting plate 91, thereby facilitating the quick replacement of the collecting box 81.

[0045] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A Micro-LED chip automatic continuous detection device, characterized in that: The utility model provides an ATE body, a conveying track is fixedly connected on the ATE body, and the conveying track is provided with double channels, 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 close to the servo motor, the output end of the servo motor is connected to the bottom end of one first rotating shaft, a first belt is sleeved between the two first rotating shafts, two push plates are fixedly connected to the outer wall of the first belt and slidably connected to the conveying track, a connection test assembly is arranged on the ATE body, the connection test assembly is used for testing the connection and electrical performance of a chip, one push plate pushes one chip to the connection test assembly for testing, and the other push plate returns to the feeding position synchronously to wait for the next time of pushing the chip, the chip is taken away after the electrical performance test, the output end of the servo motor reversely rotates, and the next chip is pushed to the connection test assembly for automatic detection in an alternating mode; A plurality of chip seats are arranged on the conveying track, the connection test assembly comprises an electric cylinder and a test plug, the two electric cylinders are fixedly connected to the ATE body and located at the middle part of the double channels of the conveying track, and the test plug is fixedly connected to the output end of the electric cylinder; A hydraulic cylinder is fixedly connected to the conveying track, a blocking plate is fixedly connected to the output end of the hydraulic cylinder, a first oil pipe and a second oil pipe are fixedly connected to the two input ends of the hydraulic cylinder respectively, and a transmission assembly is arranged on the ATE body and used for driving the output end of the hydraulic cylinder to stretch and retract; The transmission assembly comprises an extrusion block, an oil box, a sliding block, an extrusion plate and a first elastic member, the extrusion block is fixedly connected to the side of the push plate away from the first rotating shaft, the two oil boxes are fixedly connected to the ATE body and connected to the first oil pipe and the second oil pipe respectively, and the two oil boxes are located at the two sides of the conveying track, the sliding block is slidably connected to the inner wall of the oil box, and the extrusion block and the sliding block are arranged correspondingly, the extrusion plate is slidably connected to the inner wall of the oil box, the round rod end of the extrusion plate is fixedly connected to the sliding block, when the output end of the hydraulic cylinder is controlled to stretch and retract, the push plate pushes the chip seat to slide, the extrusion block extrudes the inclined surface of the sliding block in the process of reaching the detection position, and the sliding block is extruded into the inside of the oil box, and the first elastic member is sleeved on the outer wall of the round rod end of the extrusion plate; 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, a belt pulley is fixedly connected to the first rotating shaft and the second rotating shaft close to each other, a third belt is sleeved between the two belt pulleys, and a pulling mechanism is arranged on the outer wall of the second belt and used for pulling the tested chip. The pulling mechanism comprises fixing plates, connecting frames, No.1 rotating rods, extension frames and matching assemblies; two fixing plates are fixedly connected to the outer walls of the No.2 belts, and the two fixing plates slide on the conveying tracks; two connecting frames are fixedly connected to the fixing plates on the sides close to the No.1 rotating shafts; the No.1 rotating rods are rotatably connected to the connecting frames through No.1 torsional springs; the extension frames are fixedly connected to the outer walls of the No.1 rotating rods; the matching assemblies are arranged on the extension frames, and are used for hooking and pulling the chip seats to move; The matching assembly comprises No.2 rotating rods, short plates and short rods; the No.2 rotating rods are rotatably connected to the extension frames through No.2 torsional springs; the short plates are fixedly connected to the outer walls of the No.2 rotating rods; four short rods are fixedly connected to the four corners of the chip seats. 2.The automatic continuous detection device for Micro-LED chips according to claim 1, characterized in that: Two discharge grooves are respectively arranged on the double channels of the conveying tracks; the bottom ends of the conveying tracks are provided with collecting boxes, and the two collecting boxes are located below the discharge grooves. 3.The automatic continuous detection device for Micro-LED chips according to claim 2, characterized in that: The inner walls of the collecting boxes are slidably connected with sliding plates; No.2 elastic members are fixedly connected between the bottom ends of the sliding plates and the inner walls of the collecting boxes. 4.The automatic continuous detection device for Micro-LED chips according to claim 3, characterized in that: The bottom ends of the conveying tracks are fixedly connected with two limiting plates; the two limiting plates are respectively located below the two discharge grooves.

Citation Information

Patent Citations

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