Micro-led panel detection jig

Abstract

The utility model discloses a kind of Micro-LED panel detection jigs, belong to panel test technical field.The jig includes lower loading panel, upper loading panel, pressure head module and probe module;Lower loading panel two sides symmetrically set equidistant mounting hole, pressure head module is adjustably fixed on mounting hole by hexagon screw, form detachable pressure head array;Upper loading panel is equipped with step, and support module groove of the bottom of pressure head module is inlayed, realize quick suspension positioning;Lower loading panel two ends are equipped with FPC slot, for connecting FPC;Probe module includes probe of built-in spring, mounting block and fixed block, probe is slidably mounted in mounting block, lock on lower loading panel by fixed block, form elastic electric contact unit.The utility model is simple in structure, convenient to adjust, can be compatible with multiple sizes Micro-LED panel, significantly improve detection efficiency, reduce equipment cost, applicable to batch fast rhythm production.

Description

TECHNICAL FIELD

[0001] The utility model relates to Micro-LED panel test technical field especially relates to a kind of Micro-LED panel detection fixture. BACKGROUND

[0002] The existing Micro-LED panel lighting test device needs to be designed separately for different sizes and different needle position display screens, and the whole must be replaced when model switching, resulting in high equipment purchase cost, long line changing time and raw material waste. INVENTION CONTENTS

[0003] The utility model discloses a Micro-LED panel detection fixture, to solve the foregoing problems existing in prior art.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of Micro-LED panel detection fixture, including lower loading panel, upper loading panel, pressure head module and probe module;

[0006] The lower loading panel is symmetrically provided with parallel and equidistant mounting holes on both sides, and the pressure head module is fixed in the mounting hole by hexagon screw, forming a detachable pressure head array;

[0007] The upper loading panel is provided with a step, and the pressure head module is provided with a support module at the bottom, the support module includes a support module upper end and a support module lower end, and a groove is formed between the two for embedding and fixing with the step;

[0008] One end of the lower loading panel is also provided with an FPC slot for connecting and fixing the FPC, to ensure stable circuit connection and realize signal transmission;

[0009] Further comprising: fixed slot;

[0010] The fixed slot includes: a first slot, which is opened on the loading panel body fixedly connected with the guide rail;

[0011] Second slot, which is opened on the slider that can slide up and down along the guide rail;When the adjusting rod drives the slider to lift into place, the edges of the two slots are at the same horizontal plane and overlap each other, forming a continuous channel for the horizontal insertion of the metal lock plate.

[0012] Preferably, the pressure head module includes: a support module, an adjusting rod, a guide rail, a metal lock plate and a rubber head;

[0013] The support module is located at the bottom of the pressure head module and protrudes downward integrally, and the support module upper end is fixedly connected with the pressure head module bottom plate, and the support module lower end is clamped with the step of the upper loading panel, so that the pressure head module is suspended and positioned;

[0014] The adjusting rod passes horizontally through the side wall of the pressure head module and extends into the mounting hole. It is then locked to the lower loading panel with hexagonal screws to fix the horizontal position.

[0015] The guide rail is fixed to the bottom surface of the pressure head module and slides in fit with the surface of the lower loading panel to guide the sliding movement in the vertical direction;

[0016] The rubber head is embedded in the front end of the metal locking plate, providing elastic cushioning and preventing loosening when locked, thereby enabling rapid adjustment, positioning and locking of the pressure head module.

[0017] Preferably, the support module includes: an upper end of the support module, a lower end of the support module, and a groove between the two; the upper end of the support module is integrally fixed to the bottom plate of the pressure head module and extends downward, the lower end of the support module continues to narrow downward to form a locking foot, and the groove formed between the two is used to lock into the step of the upper loading panel to realize the suspension positioning and load bearing of the pressure head module;

[0018] After the groove of the support module engages with the step of the upper loading panel, it is locked in place by a metal locking plate.

[0019] The probe module includes a probe, a mounting block, and a fixing block. The probe has a built-in spring and is installed in the mounting block. It is fixed to the lower loading panel by screws, forming an independently detachable electrical contact unit.

[0020] Preferably, the probe is a hollow needle body with a built-in helical spring. The spring is coaxially placed in the inner cavity of the needle body with its lower end abutting against the tail of the needle tip and its upper end abutting against the top wall of the inner hole of the mounting block. When the probe is pressed, the spring is compressed, causing the needle tip to retract and continuously providing a reverse elastic force, thereby automatically compensating for the height difference of the screen and maintaining a constant contact pressure between the needle tip and the screen pad, ensuring stable conduction of the detection circuit.

[0021] Preferably, the mounting block is located on the outer periphery of the probe and has a through longitudinal hole, in which the probe can be slidably placed; the mounting block has symmetrical fixing holes on both sides, the fixing block is attached to the side wall of the mounting block and aligned with the mounting holes of the lower loading panel, and the screw passes through the fixing holes to lock the mounting block and the fixing block together to the lower loading panel, so that the probe is kept vertically positioned and the spring is in a pre-compressed state, thereby realizing the elastic extension and retraction of the probe and the detachable fixing of the whole module.

[0022] Preferably, the guide rail has its fixed end fixed to the vertical back plate of the pressure head module, forming a moving rail reference that moves synchronously with the pressure head;

[0023] The slider end of the guide rail slides into the vertical guide portion of the lower loading panel to form a sliding pair;

[0024] The guide axis of the guide rail is perpendicular to the bearing surface of the loading panel, so that the pressure head module is only lifted in the vertical direction under the driving of the adjusting rod and keeps the probe in vertical alignment with the Micro-LED panel pad at all times.

[0025] Preferably, the metal lock plate is matched with the rubber head and is used for locking or releasing quickly after the pressure head module is installed in place.

[0026] Preferably, the upper loading panel and the lower loading panel are embedded through the support module of the pressure head module, so as to form an upper and lower alignment structure.

[0027] Preferably, the probe module is arranged in a transverse array along the mounting hole and corresponds to the position of the pressure head module one by one, so as to form an adjustable detection array.

[0028] The utility model discloses the beneficial effects are:

[0029] A set of jigs is adapted to various sizes of Micro-LED panels, without the need for overall replacement, saving equipment cost;

[0030] The pressure head module and the probe module can be quickly disassembled by one person without tools, and the line changing time is shortened;

[0031] The built-in spring of the probe ensures continuous and reliable contact with the screen pad, and the detection yield is improved;

[0032] The modular structure reduces the waste of raw materials and is more convenient to transport and maintain. DRAWINGS

[0033] Figure 1 It is the lower loading panel of the utility model and is not loaded pressure head module schematic diagram;

[0034] Figure 2 It is the lower loading panel of the utility model and is loaded pressure head module schematic diagram;

[0035] Figure 3 It is the pressure head module adjustment schematic diagram of the utility model;

[0036] Figure 4 It is the adjustable pressure head schematic diagram of the utility model in working state;

[0037] Figure 5 It is the pressure head module structure schematic diagram of the utility model;

[0038] Figure 6 It is the adjustable pressure head schematic diagram of the utility model in locked state;

[0039] Figure 7 It is the upper loading panel of the utility model and is not loaded pressure head schematic diagram;

[0040] Figure 8It is the upper loading panel side view of the utility model;

[0041] Figure 9 It is the pressure head integrated group schematic diagram of the utility model;

[0042] Figure 10 It is the upper loading panel and installs pressure head schematic diagram of the utility model;

[0043] Figure 11 It is the support module assembly schematic diagram of the utility model;

[0044] Figure 12 It is the probe installation position schematic diagram of the utility model;

[0045] Figure 13 It is the needle module schematic diagram of the utility model;

[0046] Figure 14 It is the probe installation perspective view of the utility model.

[0047] In the drawing, 1, mounting hole;2, FPC slot;3, pressure head module;4, first slot;5, second slot;6, recess;7, guide rail;8, adjusting rod;9, rubber head;10, metal lock plate;11, step;12, support module;13, support module upper end;14, support module lower end;15, probe;16, fixed hole;17, fixed block;18, mounting block. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is further detailed to the utility model in conjunction with the drawing.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0049] Referring to Figures 1 to 14 The Micro-LED panel detection fixture shown in the drawing, including lower loading panel, upper loading panel, pressure head module 3 and probe module;

[0050] The lower loading panel both sides symmetrically are provided with parallel and equidistant mounting hole 1, and the pressure head module 3 is fixed in mounting hole 1 through hexagon screw, forms the pressure head array of detachable;

[0051] The upper loading panel is equipped with step 11, and the pressure head module 3 bottom is equipped with support module 12, and the support module 12 includes support module upper end 13 and support module lower end 14, and forms recess between both, is used to with step 11 embedding fixed;

[0052] The lower loading panel one end is also equipped with FPC slot 2, is opened in the loading panel body with the guide rail fixed connection, is used to access and fixed FPC, ensures that circuit connection is stable, realizes signal transmission;

[0053] Also included are fixed slots;

[0054] The fixed slots include: a first slot 4, which is opened on the loading panel body fixedly connected with the guide rail;

[0055] A second slot 5 is opened on the slider which can slide up and down along the guide rail; the first slot 4 and the second slot 5 are at the same horizontal plane and coincide with each other when the adjusting rod 8 drives the slider to lift into place, forming a continuous channel for the transverse insertion of the metal lock plate 10.

[0056] The probe module includes a probe 15, a mounting block 18, and a fixed block 17. The probe 15 is built-in spring and installed in the mounting block 18, and is fixed to the lower loading panel through the screw and the fixed block 17, forming an electric contact unit which can be independently disassembled.

[0057] In this embodiment, I, the overall architecture

[0058] The detection tool is a three-layer structure: the lower loading panel constitutes the bottom reference, the upper loading panel is suspended above the lower loading panel through the pressure head module 3, the probe module is arrayed in the form of an independent unit at the specified coordinates of the lower loading panel, and the FPC slot 2 is located at the front end of the lower loading panel, forming a signal input / output port. All components are positioned around the "lateral coordinate system" - i.e. two parallel and equidistant mounting holes 1, achieving the same block skeleton compatible with multiple models of Micro-LED panel lighting detection.

[0059] II, the lower loading panel

[0060] The panel body is made of 20mm aluminum alloy, and the upper surface is ground to a flatness of ≤0.05mm. A row of M4 threaded holes is milled on each side, forming mounting holes 1 with a spacing of 10mm, with a cumulative tolerance of ±0.01mm, providing a lateral stepless adjustment reference for the pressure head module 3 and the probe module. A sunken step is milled at the front end of the panel body.

[0061] III, pressure head module and upper loading panel

[0062] The bottom plate of the pressure head module 3 is 8 mm thick, and the bottom surface is processed with two V-shaped positioning grooves matched with the guide rail 7 to ensure that the sliding direction is parallel to the array of mounting holes 1. The support module 12 is integrally formed with the bottom plate, the upper end 13 of the support module is 5 mm thick, the lower end 14 of the support module is 3 mm thick, and a 2 mm deep groove is formed between the two, the groove width is 0.02 mm larger than the step 11 of the upper loading panel, forming a "sliding-in-fitting-self-positioning" effect. The adjusting rod 8 is an M4 hexagonal bolt, the threaded part penetrates through the side wall of the pressure head module 3 and is screwed into the mounting hole 1, and the bolt head is exposed by 6 mm, which can be locked or released by a common hexagonal wrench. When the upper loading panel falls and the step 11 is completely embedded in the groove, the clamping leg of the lower end 14 of the support module first contacts the bottom surface of the step, and the bottom surface of the upper end 13 of the support module is then matched with the top surface of the step, forming an "up-down clamping" type suspension positioning; at this time, the weight of the pressure head module 3 is transmitted to the step 11 through the support module 12, realizing instantaneous bearing in the up-down direction, and eliminating the horizontal gap by means of the 0.02 mm interference, achieving a repeat positioning accuracy of ±0.01 mm.

[0063] Four, probe module

[0064] The mounting block 18 is made of PEEK insulating material, a φ1.5 mm through hole is processed in the center, and a gold-plated probe 15 is installed in the hole. The probe 15 is a piston structure with an internal spiral spring, the spring has a free length of 5 mm, and provides a contact force of about 20 g when compressed by 2 mm. The tail of the probe is provided with a convex ring matched with the step in the hole to prevent falling off. Two φ2.5 mm fixing hole positions 16 are opened on both sides of the mounting block 18, and the fixing block 17 is an aluminum L-shaped piece, the horizontal arm of which is aligned with the mounting hole 1 of the lower loading panel, and the vertical arm is attached to the side of the mounting block 18. After the M3 screw penetrates through the fixing hole position 16, the two are locked on the lower loading panel at the same time, completing the rigid fixation of the probe module. Since the mounting block 18 and the fixing block 17 are plane-fitted, the axis of the probe 15 is always perpendicular to the panel pad, ensuring that the height difference is ≤0.03 mm when multiple points are contacted at the same time.

[0065] Five, FPC connection

[0066] According to the panel pinning diagram, slide the pressure head module 3 to the target coordinates,

[0067] Lock the probe module according to the coordinates, and the probe 15 is in elastic contact with the screen pad under the action of the spring;

[0068] Start the lighting program to complete the bad point, brightness and current test;

[0069] After the detection is completed, lift the upper loading panel and take out the panel, and the next round of detection can be performed.

[0070] Seven, effect achieved

[0071] Through the above structure, the jig can complete the switching of different size panels in 3 minutes, the repeated positioning accuracy of the pressure head and the probe is ≤0.02mm, the probe contact force is stable 20g±2g, the detection misjudgment rate is reduced by 80%, the equipment purchase cost is saved by more than 60%, and the batch fast rhythm production demand is met.

[0072] Preferably, the pressure head module 3 comprises a support module 12, an adjusting rod 8, a guide rail 7, a metal locking plate 10 and a rubber head 9.

[0073] The support module 12 is located at the bottom of the pressure head module 3 and protrudes downward integrally, the upper end 13 of the support module is fixedly connected with the bottom plate of the pressure head module 3, and the lower end 14 of the support module is clamped with the step 11 of the upper loading panel, so that the pressure head module 3 is suspended and positioned.

[0074] The adjusting rod 8 transversely penetrates through the side wall of the pressure head module 3 and is locked with the lower loading panel by a hexagonal screw, so as to realize transverse position fixing.

[0075] The guide rail 7 is fixedly arranged on the bottom surface of the pressure head module 3 and is in sliding cooperation with the surface of the lower loading panel, so as to guide the vertical sliding.

[0076] The rubber head 9 is embedded in the front end of the metal locking plate 10, which can ensure close contact between the screen and the probe during work, and prevent the tip of the pressure head from damaging the screen, so that the pressure head module 3 has the functions of rapid adjustment, positioning and locking.

[0077] The pressure head module 3 adopts a composite structure of “bottom suspension + transverse sliding + overturning locking”, so as to realize rapid, accurate and repeatable mounting and dismounting of a single module on the jig. The specific structure and cooperation relationship are as follows:

[0078] The support module 12 and the bottom plate of the pressure head module 3 are integrally processed and formed, protrude downward from the bottom plate, and form a stepped boss with “wide at the top and narrow at the bottom”; the upper end 13 of the support module is directly fixedly connected with the bottom plate, so as to ensure that the load transmission path is the shortest, the lower end 14 of the support module continues to narrow to form a clamping leg, the thickness of the clamping leg is slightly smaller than the groove width of the step 11 of the upper loading panel, so that the step 11 can be smoothly slid into and clamped, and the vertical suspension positioning of the pressure head module 3 is completed, and the freedom degrees of forward and backward and left and right shaking are limited.

[0079] The adjusting rod 8 extends into the corresponding mounting hole 1 of the lower loading panel; the shaft end is provided with a radial through hole for inserting a hexagonal screw and being screwed with the threaded hole in the bottom surface of the mounting hole 1. When the screw is tightened, the stepped shoulder is attached to the outer surface of the side wall of the pressure head module 3, a transverse pulling force is generated, and the pressure head module 3 is rigidly connected with the lower loading panel; after the screw is loosened, the stepped shaft can freely slide in the mounting hole 1, and the transverse position is steplessly adjusted.

[0080] The guide rail 7 is a rectangular cross-section stainless steel strip, which is fixed to the bottom surface of the pressure head module 3 by two countersunk screws. Its lower surface forms a planar pair with the surface of the lower loading panel. The length direction of the guide rail 7 is parallel to the array of mounting holes 1, which can withstand lateral torque, prevent the pressure head module 3 from deflecting during the adjustment process, and ensure that the repeatability of the positioning accuracy is ≤0.02mm.

[0081] Preferably, the support module 12 includes: an upper end 13 of the support module, a lower end 14 of the support module, and a groove between the two; the upper end 13 of the support module is integrally fixed to the bottom plate of the pressure head module 3 and extends downward, the lower end 14 of the support module continues to narrow downward to form a locking foot, and the groove formed between the two is used to lock into the step 11 of the upper loading panel to realize the suspension positioning and load bearing of the pressure head module 3.

[0082] After the groove of the support module 12 engages with the step 11 of the upper loading panel, it is locked in place by the metal locking piece 10.

[0083] The probe module includes a probe 15, a mounting block 18 and a fixing block 17. The probe 15 has a built-in spring and is installed in the mounting block (18). It is fixed to the lower loading panel by screws and the fixing block (17) to form an independently detachable electrical contact unit.

[0084] In this embodiment, the upper loading panel is first horizontally lifted so that its step 11 is aligned with the groove opening of the support module 12; then it is slowly lowered, and the step 11 slides into the groove slide. The bottom surface of the upper end 13 of the support module first fits against the top surface of the step 11, and the locking foot of the lower end 14 of the support module simultaneously hugs the bottom of the step 11, completing the suspension positioning and instantly bearing the weight of the pressure head module 3. The groove and the step 11 are locked and fixed, realizing the vertical gapless positioning and load bearing of the pressure head module 3.

[0085] Preferably, the probe 15 is a hollow needle body with a built-in helical spring. The spring is coaxially placed in the inner cavity of the needle body with its lower end abutting against the tail of the needle tip and its upper end abutting against the top wall of the inner hole of the mounting block 18. When the probe 15 is pressed, the spring is compressed, causing the needle tip to retract and continuously providing a reverse elastic force, thereby automatically compensating for the height difference of the screen and maintaining a constant contact pressure between the needle tip and the screen pad, ensuring stable conduction of the detection circuit.

[0086] Probe 15 implementation: The probe 15 is inserted into the longitudinal hole of the mounting block 18, with the upper end of the spring hitting the top wall of the hole and the lower end abutting the tail of the probe tip; the fixing holes 16 on both sides of the mounting block 18 are aligned with the fixing block 17, and the screw passes through and locks into the mounting hole 1 of the lower loading panel. The probe 15 is vertically fixed and the spring is pre-compressed by 0.5mm. When the panel is pressed down during testing, the spring is further compressed, and the probe tip is always in close contact with the solder pad.

[0087] Preferably, the mounting block 18 is located on the outer periphery of the probe 15 and has a through longitudinal hole, in which the probe 15 can be slidably placed; the mounting block 18 has symmetrically arranged fixing holes 16 on both sides, and the fixing block 17 is attached to the side wall of the mounting block 18 and aligned with the mounting hole 1 of the lower loading panel. The screw passes through the fixing holes 16 to lock the mounting block 18 and the fixing block 17 together to the lower loading panel, so that the probe 15 is kept vertically positioned and the spring is in a pre-compressed state, thereby realizing the elastic extension and retraction of the probe 15 and the detachable fixing of the whole module.

[0088] Mounting block implementation: Fixing block 17 is attached to the side wall of mounting block 18, and the two are locked together in mounting hole 1 with screws, thus completing the positioning of the probe module; loosening the screws allows the entire module to be pulled out, enabling single-point maintenance.

[0089] Preferably, the guide rail 7 has its fixed end fixed to the vertical back plate of the pressure head module 3, forming a moving rail reference that moves synchronously with the pressure head;

[0090] The slider end of guide rail 7 slides in conjunction with the vertical guide portion of the lower loading panel to form a sliding pair;

[0091] The guide axis of the guide rail 7 is perpendicular to the bearing surface of the loading panel, so that the pressure head module 3 moves up and down only in the vertical direction under the drive of the adjusting rod 8, and keeps the probe perpendicularly aligned with the Micro-LED panel pads.

[0092] Preferably, the metal locking plate 10 cooperates with the rubber head 9 to quickly lock or release after the pressure head module 3 is installed in place.

[0093] Preferably, the upper loading panel and the lower loading panel are fitted together by the support module 12 of the pressure head module 3 to form an upper and lower alignment structure.

[0094] Preferably, the probe modules are arranged in a transverse array along the mounting holes 1, corresponding one-to-one with the positions of the pressure head modules 3, forming an adjustable detection array.

[0095] Alignment of the upper and lower loading panels: When the upper loading panel falls, the step 11 slides into the groove of the support module 12. The side walls of the groove restrict lateral displacement. The bottom surface of the step fits into the locking foot of the lower end 14 of the support module, thus completing the precise alignment of the upper and lower panels.

[0096] Implementation of probe module array: According to the pin insertion diagram on the panel, place the probe modules one by one on the corresponding mounting holes 1 and tighten them sequentially with the same screws. The probes 15 and the pressure head modules 3 correspond one-to-one on the horizontal coordinate, forming a detection array that can be added, removed, or moved at will. When changing models, simply loosen the screws to slide or replace the modules without removing the fixtures.

[0097] The overall working method of this utility model is as follows:

[0098] Preparatory stage

[0099] a. Based on the size of the Micro-LED panel and the pinning coordinates, slide the pressure head module 3 on the mounting hole array 1 of the lower loading panel. After it is in place, tighten the hexagonal screw of the adjusting rod 8 to make the pressure head module 3 rigidly connected to the lower loading panel.

[0100] b. Using the same method, lock the probe modules one by one to the corresponding coordinates to ensure that probe 15 and pressure head module 3 are in one-to-one correspondence in the horizontal direction, forming a detection array;

[0101] Loading stage

[0102] a. Place the panel to be tested in the fixture working area and align the positioning edges;

[0103] b. The machine moves the upper loading panel vertically downwards;

[0104] a. The machine continues to press down slightly, and the tip of probe 15 contacts the screen pad first. The built-in spring is compressed, automatically compensating for the panel height difference and maintaining constant contact pressure.

[0105] b. Power on, signal is sent to panel through FPC slot 2, probe 15 transmits detection signal back to test system to complete the acquisition of power on, dead pixel, and current parameters;

[0106] c. After the test, the machine is lifted, the spring returns to its original position, and probe 15 is disengaged from the pad.

[0107] Unloading phase

[0108] a. The upper loading panel is lifted by the machine, the tested panel is removed, the next panel is placed in, and the next cycle begins.

[0109] Transformation phase

[0110] When changing to a different sized panel, loosen the adjusting rod 8 and the probe module fixing screws, move them horizontally or add or remove the corresponding modules, and then tighten them again. No disassembly of the fixture is required throughout the process, and the changeover time is ≤3 minutes.

[0111] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0112] The Micro-LED panel inspection fixture employing the above structure and method allows for rapid deployment of the pressure head module and probe module at any position via transverse coordinate mounting holes. One set of equipment can accommodate panels of various sizes, significantly reducing equipment purchase costs. The groove-step suspension combined with metal locking plates enables precise alignment and rigid connection of the loaded panels within 3 seconds, resulting in short changeover time. The probes with built-in springs automatically compensate for panel height differences, maintaining constant contact pressure, reducing the false detection rate, and making signal acquisition more stable. All modules are independently detachable, allowing for single-point replacement in case of damage, greatly reducing maintenance costs and downtime, and improving overall inspection efficiency and production line cycle time.

[0113] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A Micro-LED panel testing fixture, characterized in that: It includes a lower loading panel, an upper loading panel, a pressure head module (3), and a probe module; The lower loading panel has parallel and equidistant mounting holes (1) symmetrically arranged on both sides. The pressure head module (3) is fixed to the mounting holes (1) by hexagonal screws to form a detachable pressure head array. The upper loading panel is provided with a step (11), and the bottom of the pressure head module (3) is provided with a support module (12). The support module (12) includes an upper end (13) and a lower end (14) of the support module, and a groove is formed between the two for fitting and fixing with the step (11). One end of the lower loading panel is also provided with an FPC slot (2) for connecting and fixing the FPC to ensure stable circuit connection and realize signal transmission; Also includes: a fixed slot; The fixed slot includes: a first slot (4), which is formed on the loading panel body that is fixed to the guide rail; The second slot (5) is located on the slider that can slide up and down along the guide rail; when the slider is lifted into position by the adjusting rod (8), the edges of the first slot (4) and the second slot (5) are on the same horizontal plane and overlap each other, forming a continuous channel for the metal locking piece (10) to be inserted laterally.

2. The Micro-LED panel testing fixture according to claim 1, characterized in that, The pressure head module (3) includes: a support module (12), an adjusting rod (8), a guide rail (7), a metal locking plate (10), and a rubber head (9); The support module (12) is located at the bottom of the pressure head module (3) and protrudes downward as a whole. Its upper end (13) is fixed to the bottom plate of the pressure head module (3), and its lower end (14) is engaged with the step (11) of the upper loading panel, so that the pressure head module (3) is suspended and positioned. The adjusting rod (8) passes laterally through the side wall of the pressure head module (3) and extends into the mounting hole (1), and is locked to the lower loading panel by a hexagonal screw to achieve lateral position fixation; The guide rail (7) is fixed to the bottom surface of the pressure head module (3) and slides in fit with the surface of the lower loading panel to guide the sliding along the vertical direction; The rubber head (9) is embedded in the front end of the metal locking plate (10) to provide elastic buffer and prevent loosening when locked, thereby completing the rapid adjustment, positioning and locking of the pressure head module (3).

3. The Micro-LED panel testing fixture according to claim 1, characterized in that, The support module (12) includes: an upper end (13) of the support module, a lower end (14) of the support module and a groove between the two; the upper end (13) of the support module is integrally fixed to the bottom plate of the pressure head module (3) and extends downward, the lower end (14) of the support module continues to narrow downward to form a locking foot, and the groove formed between the two is used to lock into the step (11) of the upper loading panel to realize the suspension positioning and load bearing of the pressure head module (3); After the groove (6) of the support module (12) engages with the step (11) of the upper loading panel, it is locked and fixed by the metal locking piece (10).

4. The Micro-LED panel testing fixture according to claim 1, characterized in that, The probe module includes a probe (15), a mounting block (18), and a fixing block (17). The probe (15) has a built-in spring and is installed in the mounting block (18). It is fixed to the lower loading panel by screws and the fixing block (17) to form an independently detachable electrical contact unit.

5. The Micro-LED panel testing fixture according to claim 1, characterized in that, The probe (15) is a hollow needle body with a built-in helical spring. The spring is coaxially placed in the inner cavity of the needle body and its lower end abuts against the tail of the needle tip, while its upper end abuts against the top wall of the inner hole of the mounting block (18). When the probe (15) is pressed, the spring is compressed, causing the needle tip to retract and continuously providing a reverse elastic force, thereby automatically compensating for the height difference of the screen and maintaining a constant contact pressure between the needle tip and the screen pad, ensuring stable conduction of the detection circuit.

6. The Micro-LED panel testing fixture according to claim 4, characterized in that, The mounting block (18) is located on the outer periphery of the probe (15) and has a through longitudinal hole. The probe (15) can be slidably placed in the hole. Fixing holes (16) are symmetrically arranged on both sides of the mounting block (18). The fixing block (17) is attached to the side wall of the mounting block (18) and aligned with the mounting hole (1) of the lower loading panel. The screw passes through the fixing hole (16) to lock the mounting block (18) and the fixing block (17) together to the lower loading panel, so that the probe (15) is kept vertically positioned and the spring is in a pre-compression state, thereby realizing the elastic extension and retraction of the probe (15) and the detachable fixing of the whole module.

7. The Micro-LED panel testing fixture according to claim 1, characterized in that, Also includes: The guide rail (7) has its fixed end fixed to the vertical back plate of the pressure head module (3) to form a moving rail reference that moves synchronously with the pressure head; The slider end of the guide rail (7) slides in conjunction with the vertical guide portion of the lower loading panel to form a sliding pair; The guide axis of the guide rail (7) is perpendicular to the bearing surface of the loading panel, so that the pressure head module (3) moves up and down only in the vertical direction under the drive of the adjusting rod (8), and keeps the probe (15) perpendicularly aligned with the pad of the Micro-LED panel.

8. The Micro-LED panel testing fixture according to claim 1, characterized in that, The metal locking plate (10) cooperates with the rubber head (9) to quickly lock or release after the pressure head module (3) is installed in place.

9. The Micro-LED panel testing fixture according to claim 1, characterized in that, The upper loading panel and the lower loading panel are fitted together by the support module (12) of the pressure head module (3) to form an upper and lower alignment structure.

10. The Micro-LED panel testing fixture according to claim 1, characterized in that, The probe modules are arranged in a transverse array along the mounting holes (1), corresponding one-to-one with the positions of the pressure head modules (3), forming an adjustable detection array.

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