Display screen module detection device

Abstract

The invention discloses a display screen module detection device, and relates to the technical field of display screen module detection, the display screen module detection device comprises a detection table, a laser detection module is arranged on the detection table, and the laser detection module comprises a laser confocal microscope unit executing rotation and translation motion, an extrusion module and a detection module arranged at the side end of the laser detection module, comprising an extrusion part capable of vertically moving and rotating and a pressing tool assembly arranged at the side end of the extrusion part, and an extrusion station is arranged below the extrusion part; the extrusion module can automatically adjust the pressure head to the extrusion station according to needs, the time for replacing the pressure head is saved, after the extrusion piece adjusts the position of the pressure head of the detection station, the hold-down clamp assembly rotates to carry out arc scratch testing on the display screen module, testing is diversified, scratch and friction testing data of different modes can be provided, and the testing efficiency is improved. The accuracy of the whole test is improved through different data, and the test efficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen module detection, and in particular to a display screen module detection device. Background Art

[0002] The purpose of the indentation test of the display module is to ensure that the display screen can prevent the ultrasonic sensor from causing indentation damage to the display screen when it is subjected to external force, thereby protecting the integrity and use effect of the display screen. This test not only involves the physical protection of the display module, but also the long-term stability of the display screen and the user experience.

[0003] A dual-switch scratch detection device for a liquid crystal display is disclosed in a Chinese patent with publication number CN207502853U. The patent provides that when the display screen is subjected to a scratch test, its test end needs to be moved horizontally for scratch detection. However, the detection content of the display screen module also includes indentation detection and friction detection. Its test end corresponds to pressure pieces of different shapes. Due to different test drive processes, it also corresponds to different detection instruments. When the display screen module needs to be subjected to different types of detection, different detection equipment needs to be replaced. The display screen module is moved back and forth, which makes the detection process complicated and affects the detection efficiency. Summary of the invention

[0004] The object of the present invention is to provide a display screen module detection device, which can automatically adjust the pressure head to the extrusion station as needed, saving the time of replacing the pressure head, and can provide data of scratch and friction tests in different ways, thereby increasing the accuracy of the entire test through different data, and improving the test efficiency and accuracy.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a display screen module detection device, comprising a detection platform, on which a laser detection module is arranged, the laser detection module comprises a laser confocal microscope unit that performs rotation and translation motion, and the laser confocal microscope unit is connected to a display to display a detection picture;

[0006] A loading fixture, the bottom end of which is arranged on the table surface of the testing table through a two-axis moving platform, and the loading fixture moves horizontally and vertically on the same horizontal plane;

[0007] An extrusion module is arranged at the side end of the laser detection module, comprising an extrusion member capable of vertical movement and self-rotation, and a press assembly arranged at the side end of the extrusion member, and an extrusion station is provided below the extrusion member;

[0008] The press assembly moves in the vertical direction and can rotate. The press assembly includes a plurality of pressing heads in a circular array, and each of the pressing heads corresponds to a different detection mode. When the press assembly rotates, each of the pressing heads can overlap with the extrusion station.

[0009] Furthermore, the laser detection module and the extrusion module are both installed on the detection table through the same assembly bracket, and the detection table is provided with a driver for driving the assembly bracket to move vertically.

[0010] Furthermore, the upper end of the extrusion piece is connected to a driving mechanism for driving the extrusion piece to move up and down and rotate, the driving mechanism includes a movable sleeve connected to the extrusion piece, the bottom end of the extrusion piece is plugged and engaged with the upper end of the pressure head, the outer side of the driving mechanism is covered with a limiting sleeve, the limiting sleeve is provided with a first limiting groove and a second limiting groove, the outer side of the limiting sleeve is covered with an adjustment sleeve, the inner wall of the adjustment sleeve is provided with a strip groove, and a limiting column that can be telescopic and inserted into the first limiting groove is provided in the movable sleeve.

[0011] Furthermore, the bottom end of the limiting sleeve is connected to a rotating ring, the outer side of the bottom end of the rotating ring is connected to the assembling bracket through a ratchet assembly, a linkage groove is provided on the rotating ring, an annular plate is provided on the outer wall of the bottom end of the screw rod, a linkage ring plate is elastically provided on the annular plate, and a plurality of circular protrusions are provided on the upper end surface of the linkage ring plate to engage with the bottom end of the movable ring.

[0012] Furthermore, the press assembly also includes a number of limit rings corresponding to the number of pressing heads and installed in conjunction with the pressing heads, and a driving rod for installing the limit rings. The driving rod and the adjustment sleeve are connected by a gear transmission. The upper end of the pressing head is connected to an annular pressure plate, and the inner wall of the bottom end of the limit ring is elastically connected to the annular pressure plate.

[0013] Furthermore, the shape of the pressing end of the pressing head includes but is not limited to a cone, a flat head, a spherical shape and a wedge shape.

[0014] Furthermore, an annular limiting groove is provided on the inner wall of the limiting ring, two vertical sliding grooves are provided on the annular limiting groove, and a clamping column which is clamped with the annular limiting groove is provided on the outer wall of the annular pressure plate.

[0015] Furthermore, a cleaning assembly is provided at the side end of the laser detection module, and the cleaning assembly includes an inclined annular cleaning piece, a circular mounting plate is connected to the center of the annular cleaning piece, a rotating shaft is installed at the center of the mounting plate, and the upper end of the rotating shaft is connected to a mounting seat connected to the assembly bracket, and the outer wall of the annular cleaning piece is covered with an adsorption piece.

[0016] Furthermore, the annular cleaning member is a ring whose surface is annularly covered with a cleaning sponge, the upper end of the rotating shaft is connected to the mounting seat through a ratchet and a pawl, and the inclination angle of the annular cleaning member matches the rotation trajectory of the laser confocal microscope unit.

[0017] Furthermore, the adsorption member includes an adsorption seat, in which an arc-shaped hole for the annular cleaning member to penetrate is provided, and an adsorption ring is provided inside the arc-shaped hole, and the adsorption ring is connected to the fan through an air pipe.

[0018] Technical effects and advantages of the present invention:

[0019] 1. The extrusion module of the present invention can automatically adjust the pressure head to the extrusion station as needed, saving the time of replacing the pressure head and improving the detection efficiency. The extrusion component can not only drive the pressure head to press down for indentation detection, but also drive the pressure head at the detection station to rotate independently to perform rotational friction detection on the display screen module. The display screen module can also be driven to move through a loading fixture to perform unidirectional friction or scratch detection. After the extrusion component can adjust the position of the pressure head at the detection station, the press assembly is rotated to perform arc scratch test on the display screen module, which diversifies the test and can provide data of scratch and friction tests in different ways. The accuracy of the entire test is increased through different data, thereby improving the test efficiency and accuracy.

[0020] 2. The cleaning component of the present invention wipes and cleans the lens of the laser confocal microscope unit when it rotates, and when the laser confocal microscope unit rotates to a point where it does not affect the movement of the loading fixture, its lens is pressed onto the cleaning component to reduce dust adhesion, thereby achieving the effect of cleaning the laser confocal microscope unit as it rotates, and improving the clarity of the detection image. The annular cleaning piece is adsorbed and cleaned by the adsorption ring, so that the surface of the annular cleaning piece that is rotated out of the arc hole of the adsorption seat is in a clean state, which is convenient for the next contact with the laser confocal microscope unit lens, thereby improving the wiping cleanliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the laser detection module of the present invention;

[0023] Figure 3 It is a side view of the extrusion die structure of the present invention;

[0024] Figure 4 A half-section diagram of the driving mechanism structure of the present invention;

[0025] Figure 5 It is a schematic diagram of the driving mechanism structure of the present invention;

[0026] Figure 6 A bottom perspective view of the extrusion member and the press assembly structure of the present invention;

[0027] Figure 7 A partial cross-sectional view of the structure of the press tool assembly of the present invention;

[0028] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle;

[0029] Fig. 9 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0030] Fig.10 It is a schematic diagram of the structure of the cleaning component of the present invention;

[0031] Fig.11 It is a side view of the cleaning component of the present invention.

[0032] In the figure:

[0033] 1. Inspection table; 11. Assembly bracket; 2. Laser inspection module; 21. Laser confocal microscope unit; 3. Loading fixture; 4. Extrusion module; 41. Extrusion piece; 411. Insert ring seat; 412. Clamping plate; 42. Pressing tool assembly; 421. Press head; 4211. Annular pressing plate; 4212. Inner clamping plate; 4213. Clamping column; 422. Limiting ring; 4221. Reset spring; 4222. Annular limiting groove; 423. Driving rod; 4231. Driving gear; 43. Driving mechanism ; 431, screw rod; 4311, linkage ring plate; 432, movable sleeve; 4321, limiting column; 433, limiting sleeve; 4331, second limiting groove; 434, first limiting groove; 435, adjusting sleeve; 4351, strip groove; 4352, linkage gear; 436, rotating sleeve; 4361, linkage groove; 5, cleaning assembly; 51, annular cleaning member; 52, mounting plate; 53, rotating shaft; 54, mounting seat; 55, adsorption member; 551, adsorption seat; 552, arc hole. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In order to better understand the display screen module detection device provided by the present embodiment, the following first briefly introduces the existing display screen module indentation detection. In order to solve the problem that different detection equipment needs to be replaced when different types of detections are required on the display screen module in the prior art, presses of different shapes are now provided. There is no need to replace the instrument or move the display screen module to be detected. When different types of detections are required, only the presses need to be replaced. However, since scratch detection and friction detection require relative movement between the display screen module and the press to perform detection, most of the prior art realizes detection by unidirectional reciprocating movement of the display screen module to be detected, but only unidirectional sliding detection is possible, resulting in monotonous detection, and it is relatively cumbersome to replace the press back and forth. The specification is intended to solve the above technical problems.

[0036] The embodiment of the present application provides a display screen module detection device, in which the extrusion module 4 can automatically adjust the pressure head 421 to the extrusion station as needed, saving the time for replacing the pressure head 421 and improving the detection efficiency. The extrusion member 41 can not only drive the pressure head 421 to press down for indentation detection, but also drive the pressure head 421 at the detection station to rotate independently to perform rotational friction detection on the display screen module, and can also drive the display screen module to move through the loading fixture 3 for unidirectional friction or scratch detection. After the extrusion member 41 can adjust the position of the pressure head 421 at the detection station, the press assembly 42 is rotated to perform an arc scratch test on the display screen module, thereby diversifying the test and being able to provide data on scratch and friction tests in different ways. The accuracy of the entire test is increased through different data, thereby improving the test efficiency and accuracy.

[0037] Example 1: Reference Figure 1 - Fig. 9, which is the first embodiment of the present invention, provides a display screen module detection device, including a detection platform 1, on which a laser detection module 2 is arranged, and the laser detection module 2 includes a laser confocal microscope unit 21 that performs rotation and translation movements, and the laser confocal microscope unit 21 is connected to a display for displaying a detection picture, and the laser confocal microscope unit 21 allows not only the image of the object area but also additional information to be displayed on the display of the display module, specifically, for example, pressure data of an indentation test, scratch data of a scratch test, the number of friction circles of a friction test, and sliding data during sliding friction, in an image processing and control device in the display module, this information is combined by electronic mixing with the image of the object area captured by means of the laser confocal microscope unit 21, and the laser in the laser confocal microscope unit 21 is used as a scanning light source, and an image is formed by rapid scanning point by point, line by line, and surface by surface. This microscope utilizes the characteristics of the short wavelength and thin beam of the laser beam to achieve high-resolution imaging. The laser confocal microscope unit 21 includes but is not limited to three detection heads. When the detection head is rotated to a vertical state, the detection station is located below the detection mirror. The loading fixture 3 has a bottom end that is arranged on the table surface of the detection platform 1 through a two-axis moving platform. The loading fixture 3 moves laterally and longitudinally on the same horizontal plane. The loading fixture 3 first moves the clamped display screen module laterally to the bottom of the detection station. The laser confocal microscope unit 21 moves down to adjust the detection interval, and detects whether the display screen module is damaged in the initial state, ensuring that the display screen module is in a normal state before the detection, so as to ensure the accuracy of the detection. When indentation detection is required, the laser confocal microscope unit 21 needs to be rotated to avoid the laser confocal microscope unit 21 being in a vertical state and the loading fixture 3 moving and colliding with the laser confocal microscope unit 21.

[0038] The extrusion module 4 is arranged at the side end of the laser detection module 2, and includes an extrusion member 41 that can move vertically and rotate, and a press assembly 42 arranged at the side end of the extrusion member 41. The extrusion station is below the extrusion member 41. The press assembly 42 can move vertically and rotate. The press assembly 42 includes a plurality of pressure heads 421 in a circular array, and each of the pressure heads 421 corresponds to a different detection mode. When the pressure assembly 42 rotates, each of the pressure heads 421 can overlap with the extrusion station. The extrusion module 4 can automatically adjust the pressure head 421 to the extrusion station as needed, saving the time of replacing the pressure head 421. , improving the detection efficiency, and the extrusion piece 41 can not only drive the pressure head 421 to press down for indentation detection, but also drive the pressure head 421 at the detection station to rotate independently to perform rotational friction detection on the display screen module, and can also drive the display screen module to move through the loading fixture 3 for unidirectional friction or scratch detection. The extrusion piece 41 can adjust the position of the pressure head 421 at the detection station, and then the press assembly 42 can rotate to perform arc scratch test on the display screen module, so that the test is diversified, and data of scratch and friction tests in different ways can be provided. The accuracy of the entire test is increased through different data, and the test efficiency and accuracy are improved.

[0039] The laser detection module 2 and the extrusion module 4 are both installed on the detection table 1 through the same assembly bracket 11, and the detection table 1 is provided with a driver for driving the assembly bracket 11 to move vertically. The laser detection module 2 and the extrusion module 4 can be moved up or down as a whole through the assembly bracket 11 to adjust the overall structural position.

[0040] A plug-in ring seat 411 is provided at the bottom end of the extrusion piece 41, and a snap-in plate 412 is provided in a circular array on the outer wall of the plug-in ring seat 411. A driving mechanism 43 is connected to the upper end of the extrusion piece 41. The driving mechanism 43 can be a screw rod 431 connected to a motor, or a threaded rod. A movable sleeve 432 connected to the extrusion piece 41 is sleeved on the screw rod 431, and a limiting sleeve 433 is sleeved on the outer side of the screw rod 431. A first limiting groove 434 that runs through the tube wall is provided on the limiting sleeve 433. The motor drives the screw rod 431 to rotate, which is used to drive the movable sleeve 432 to move on the screw rod 431, thereby driving the extrusion piece 41 to be pressed downward.

[0041] A second limiting groove 4331 is provided on the inner wall of the limiting sleeve 433, and the second limiting groove 4331 does not penetrate the tube wall of the limiting sleeve 433. An adjusting sleeve 435 is connected to the surface of the limiting sleeve 433 through a bearing sleeve, and at least one strip groove 4351 for limiting is provided on the inner wall of the adjusting sleeve 435. The number of the strip grooves 4351 corresponds to the number of the pressure head 421 used for flat pressing for indentation detection. When the pressure head 421 used for indentation detection rotates to the extrusion station, the adjusting sleeve 435 rotates at the same time to rotate the corresponding strip groove 4351 to overlap with the first limiting groove 434, thereby adjusting the driving trajectory of the extrusion member 41.

[0042] A telescopic limiting column 4321 is arranged in the movable sleeve 432. In the initial state, one end of the limiting column 4321 is inserted and arranged in the first limiting groove 434. The bottom end of the limiting sleeve 433 is connected with a rotating sleeve 436. The outer side of the bottom end of the rotating sleeve 436 is connected to the assembly bracket 11 through a ratchet assembly. The rotating sleeve 436 is provided with a linkage groove 4361 aligned with the first limiting groove 434. The bottom end of the adjusting sleeve 435 is covered on the outer side of the rotating sleeve 436. The upper end of the adjusting sleeve 435 is sleeved with a linkage gear 4352. The outer wall of the bottom end of the screw rod 431 is provided with an annular plate, and the annular plate is elastically movable. A linkage ring plate 4311 is provided, and a plurality of circular protrusions are provided on the upper end surface of the linkage ring plate 4311. A slider is connected to the inner wall of the linkage ring plate 4311. A sliding groove for sliding the slider is provided on the screw rod 431. An arc groove corresponding to the circular protrusion is provided on the bottom end of the movable ring 432. When the movable ring 432 moves to the bottom end and contacts with the linkage ring plate 4311, the circular protrusion is aligned with the arc groove at the bottom end of the movable ring 432. The screw rod 431 can drive the movable ring 432 to rotate. The driving mechanism 43 can adjust different driving modes according to the detection type of the display screen module to improve the detection convenience.

[0043] The press assembly 42 also includes a number of limit rings 422 corresponding to the number of the press heads 421, and a driving rod 423 for installing the limit rings 422. The driving rod 423 is sleeved with a driving gear 4231 of the same size as the linkage gear 4352 and meshing with each other. The top of the driving rod 423 is connected to the driving member. The upper end of the press head 421 is connected to an annular pressing plate 4211, and the upper end of the press head 421 and the annular pressing plate 4211 are both inserted and arranged in the corresponding limit ring 422. A return spring 4221 is arranged in the limit ring 422, and the upper end of the return spring 4221 is connected to the lower end surface of the annular pressure plate 4211. The driving member can drive the driving rod 423 and multiple limit rings 422 connected to the driving rod 423 to rotate, and correspondingly drive multiple pressing heads 421 to rotate. It is used to align different types of pressing heads 421 with the extrusion station to realize the replacement of the pressing heads 421. By rotating the driving rod 423, the driving mode of the driving mechanism 43 can also be adjusted accordingly according to different types of detection.

[0044] The upper end of the pressing head 421 is connected to an annular pressure plate 4211, and the upper end of the pressing head 421 and the annular pressure plate 4211 are both inserted and arranged in the corresponding limiting ring 422, and a return spring 4221 is arranged in the limiting ring 422, and the upper end of the return spring 4221 is in contact with the lower end surface of the annular pressure plate 4211, and the limiting ring 422 is used for limiting the movement of the pressing head 421. When the extrusion member 41 extrudes the pressing head 421, the pressing head 421 moves in the limiting ring 422, so that the pressing head 421 located at the extrusion station is pressed down and contacts with the display screen module, and the indentation test is performed by moving the pressing head 421 at the extrusion station alone to avoid the entire pressing tool assembly 42 from moving downward, and when the extrusion member 41 is reset, the return spring 4221 can drive the pressing head 421 to reset, and the pressing head 421 at the extrusion station is moved downward alone, and the pressing tool assembly 42 rotates, which effectively avoids other pressing heads 421 from contacting with the fixture or the display screen module during the rotation process, causing mutual damage.

[0045] The shape of the pressing end of the pressing head 421 includes but is not limited to a cone, a flat head, a sphere and a wedge. The annular pressure plate 4211 located at the top of the pressing head 421 is provided with a slot that is engaged with the plug-in ring seat 411, and an inner clamping plate 4212 corresponding to the clamping plate 412 is arrayed on the inner wall of the slot. When the extrusion piece 41 is pressed down, the plug-in ring seat 411 at its bottom end is engaged with the slot opened at the upper end of the annular pressure plate 4211, and after engagement, the clamping plate 412 on the outer wall of the plug-in ring seat 411 is staggered with the inner clamping plate 4212, which can drive the annular pressure plate 4211 and the pressing head 421 to rotate when acting on the rotation of the extrusion piece 41.

[0046] An annular limiting groove 4222 is provided on the inner wall of the limiting ring 422, and two vertical sliding grooves are provided on the annular limiting groove 4222. A clamping column 4213 which is clamped with the annular limiting groove 4222 is provided on the outer wall of the annular pressure plate 4211. When the annular pressure plate 4211 and the pressure head 421 move downward, the clamping column 4213 on the outer wall of the annular pressure plate 4211 moves in the vertical sliding groove. When it is necessary to lock and limit the pressure head 421 that has moved down to the bottom, the annular pressure plate 4211 is rotated to screw the clamping column 4213 into the annular limiting groove 4222, so that the pressure head 421 that has moved down can be limited and locked.

[0047] Specifically, display module testing is divided into three situations, including indentation testing, scratch testing, and friction testing;

[0048] During the indentation detection, the indenter 421 corresponding to the indentation detection is rotated to the extrusion station. When the driving rod 423 rotates, the driving gear 4231 meshes with the linkage gear 4352, thereby driving the adjustment sleeve 435 to rotate at the same time, and the strip groove 4351 corresponding to the indenter 421 for indentation detection is rotated to coincide with the first limiting groove 434. The moving ring 432 moves on the screw rod 431 to drive the extrusion member 41 to press down. When the moving ring 432 moves, the limiting column 4321 is ejected and inserted into the strip groove 4351. The strip groove 4351 limits the limiting column 4321, so that the screw rod 431 can only drive the extrusion member 41 to press down, thereby driving the annular pressure plate 4211 and the pressure head 421 to press down in the limiting ring 422, and the pressure head 421 performs an indentation detection on the display screen module to be detected under the extrusion station. After extrusion, the extrusion member 41 is reset, and the annular pressure plate 4211 and the pressure head 421 are reset under the action of the reset spring 4221 and do not contact the display screen module, and the display screen module moves to the bottom of the laser detection module 2 for detection;

[0049] During scratch detection, the pressure head 421 corresponding to the scratch detection is rotated to the extrusion station, and the strip groove 4351 on the inner wall of the adjustment sleeve 435 is rotated and moved away to stagger with the first limit groove 434. At this time, there are two scratch detection adjustments. The first is that the pressure head 421 does not move, and the clamp and the display screen module move, and the extrusion member 41 presses down to drive the bottom end of the pressure head 421 to contact the display screen module, and the display screen module moves to realize the horizontal plane linear movement for scratch detection. The other is that the display screen module does not move, and the pressure head 421 rotates for detection. The movable ring 432 moves on the screw rod 431 and drives the extrusion member 41 to press down. When the movable ring 432 moves, the limiting column 4321 moves in the first limiting groove 434. When the movable ring 432 moves downward, the limiting column 4321 enters the linkage groove 4361 of the rotating ring 436. At this time, the lower end of the extrusion member 41 is engaged with the annular pressure plate 4211. The clamping column 4213 on the outer wall of the annular pressure plate 4211 is limited by the vertical sliding groove. The movable ring 432 can only move downward and cannot rotate. When the extrusion member 41 presses downward and drives the bottom end of the pressure head 421 When in contact with the display screen module, the clamping column 4213 moves into the annular limiting groove 4222. At this time, the bottom end of the movable ring 432 is locked with the circular convex point on the upper end surface of the linkage ring plate 4311. The screw rod 431 rotates to drive the movable ring 432 to rotate 30°, and then drives the rotating ring 436 and the extrusion member 41 to rotate 30° together, so that the linkage groove 4361 on the rotating ring 436 is aligned with the second limiting groove 4331. The extrusion member 41 rotates 30° to drive the annular pressing plate 4211 and the pressure head 421 to rotate, and the clamping column 4 213 is screwed from the vertical slide groove into the annular limiting groove 4222, so that the downwardly moved pressing head 421 can be limited and locked. At this time, the screw rod 431 rotates in the opposite direction, and the movable collar 432 cannot rotate under the limiting action of the ratchet assembly. The limiting column 4321 of the movable collar 432 is limited, so that the movable collar 432 moves upward along the screw rod 431, and the movable collar 432 drives the extrusion piece 41 to move upward and reset. At this time, the pressing tool assembly 42 reciprocates as a whole, and the pressing head 421 can perform an arc scratch test on the display screen module;

[0050] During friction detection, the pressure head 421 corresponding to the friction detection is rotated to the extrusion station. At this time, there are two types of friction detection adjustments. The first is that the pressure head 421 does not move, and the fixture and the display screen module move, and the extrusion piece 41 presses down, driving the bottom end of the pressure head 421 to contact the display screen module, and the display screen module moves to achieve horizontal linear movement for friction detection. The other is that the display screen module does not move, and the moving ring 432 moves on the screw rod 431 to drive the extrusion piece 41 to press down. When the moving ring 432 moves, the limiting column 4321 moves in the first limiting groove 434. When the moving ring 432 moves downward, the limiting column 4321 enters the linkage groove 4361 of the rotating ring 436. At this time, the lower end of the extrusion piece 41 is engaged with the annular pressure plate 4211, and the outer wall of the annular pressure plate 4211 is engaged. The column 4213 is limited by the vertical sliding groove, and the movable ring 432 can only move downward but cannot rotate. When the extrusion piece 41 is pressed downward to drive the bottom end of the pressure head 421 to contact the display screen module, the clamping column 4213 moves into the annular limiting groove 4222. At this time, the bottom end of the movable ring 432 is locked with the circular convex point on the upper end surface of the linkage ring plate 4311. The extrusion piece 41 is pressed downward to drive the bottom end of the pressure head 421 to contact the display screen module. The screw 431 rotates to drive the movable ring 432 to rotate, and then drives the rotating ring 436 and the extrusion piece 41 to rotate together, so that the linkage groove 4361 on the rotating ring 436 is aligned with the second limiting groove 4331. The rotation of the extrusion piece 41 drives the annular pressure plate 4211 and the pressure head 421 to rotate, and the rotation of the pressure head 421 performs a rotation friction test on the display screen module.

[0051] Example 2: Reference Fig. 9 - Fig.11 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment. During the implementation of the first embodiment, it is found that after each detection is completed, the laser detection module 2 is required to perform image detection, and when the loading fixture 3 drives the clamped display screen module to move, the laser confocal microscope unit 21 needs to be rotated so that it is not in a vertical state. During the detection, the pressure head 421 needs to scratch or rub against the display screen module, and dust impurities are easily generated during the process. The movement of the loading fixture 3 or the rotation of the pressing jig assembly 42 causes the floating dust to float, resulting in floating dust impurities easily sticking to the lens of the laser confocal microscope unit 21, affecting the detection efficiency.

[0052] In order to solve the above problem, this embodiment sets a cleaning component 5 which is movably fitted with the lens of the laser confocal microscope unit 21, and when the laser confocal microscope unit 21 rotates, its mirror surface and the cylinder mounted on the mirror surface are in contact with the cleaning component 5. The cleaning component 5 wipes and cleans the lens of the laser confocal microscope unit 21 when it rotates, and when the laser confocal microscope unit 21 rotates to not affect the movement of the loading fixture 3, its lens is pressed onto the cleaning component 5 to reduce dust adhesion, thereby achieving the effect of cleaning the laser confocal microscope unit 21 as it rotates, thereby improving the clarity of the detection image presentation.

[0053] A cleaning component 5 is provided at the side end of the laser detection module 2, and the cleaning component 5 includes an annular cleaning member 51 which is inclined. A circular mounting plate 52 is connected to the center of the annular cleaning member 51, and a rotating shaft 53 is installed at the center of the mounting plate 52. A mounting seat 54 connected to the assembly bracket 11 is connected to the upper end of the rotating shaft 53. The outer wall of the annular cleaning member 51 is covered with an adsorption member 55. The annular cleaning member 51 is a ring with a cleaning sponge covered on the surface. The surface of the cleaning sponge is covered with lens cleaning paper. The laser confocal microscope When the mirror unit 21 rotates, the mirror surface at the detection end and the cylinder mounted on the mirror surface are in contact with the mirror cleaning paper on the surface of the cleaning sponge. The friction force generated by the rotation contact of the cylinder mounted on the mirror surface drives the annular cleaning member 51 to rotate. The upper end of the rotating shaft 53 is connected to the mounting seat 54 through a ratchet and a pawl. The inclination angle of the annular cleaning member 51 matches the rotation trajectory of the laser confocal microscope unit 21. The adsorption member 55 includes an adsorption seat 551. The adsorption seat 551 is provided with an arc hole 552 for the annular cleaning member 51 to penetrate. The arc-shaped hole 552 is provided with an adsorption ring inside, which is connected to the fan through an air pipe. When the laser confocal microscope unit 21 rotates, the friction between the adsorption ring and the surface of the annular cleaning member 51 can drive the annular cleaning member 51 to rotate around the rotation axis 53. When the laser confocal microscope unit 21 rotates clockwise, the annular cleaning member 51 can be driven to rotate counterclockwise. Since the rotation axis 53 is affected by the ratchet and the pawl, it can only rotate counterclockwise. When the laser confocal microscope unit 21 rotates counterclockwise, it will only contact the annular cleaning member 53. The annular cleaning member 51 is pressed into contact and does not drive it to rotate clockwise. When the annular cleaning member 51 rotates to wipe the lens of the laser confocal microscope unit 21, the dust and impurities wiped away are removed along with the rotation of the annular cleaning member 51 and enter the arc hole 552 of the adsorption seat 551. The annular cleaning member 51 is adsorbed and cleaned by the adsorption ring, so that the surface of the annular cleaning member 51 rotated out of the arc hole 552 of the adsorption seat 551 is in a clean state, which is convenient for the next contact with the lens of the laser confocal microscope unit 21, thereby improving the wiping cleanliness.

[0054] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A display screen module detection device, comprising a detection platform (1), characterized in that: The detection platform (1) is provided with a laser detection module (2), the laser detection module (2) comprises a laser confocal microscope unit (21) that performs rotational and translational motions, and the laser confocal microscope unit (21) is connected to a display and is used to display a detection picture; A loading fixture (3), the bottom end of which is arranged on the table surface of the detection table (1) via a two-axis movable platform, and the loading fixture (3) moves horizontally and vertically on the same horizontal plane; An extrusion module (4) is arranged at a side end of the laser detection module (2), comprising an extrusion member (41) capable of vertical movement and rotation, and a pressing tool assembly (42) arranged at a side end of the extrusion member (41), and an extrusion station is located below the extrusion member (41); The press assembly (42) moves in a vertical direction and can rotate. The press assembly (42) includes a plurality of pressing heads (421) in an annular array. When the press assembly (42) rotates, each of the pressing heads (421) can overlap with an extrusion station.

2. A display screen module detection device according to claim 1, characterized in that: The laser detection module (2) and the extrusion module (4) are both mounted on the detection platform (1) via the same assembly bracket (11), and a driver for driving the assembly bracket (11) to move vertically is provided on the detection platform (1).

3. A display screen module detection device according to claim 2, characterized in that: The upper end of the extrusion piece (41) is connected to a driving mechanism (43) for driving the extrusion piece (41) to move up and down and rotate. The driving mechanism (43) comprises a movable sleeve (432) connected to the extrusion piece (41). The bottom end of the extrusion piece (41) is plugged and clamped with the upper end of the pressure head (421). The outer side of the driving mechanism (43) is covered with a limiting sleeve (433). The limiting sleeve (433) is provided with a first limiting groove (434) and a second limiting groove (4331). The outer side of the limiting sleeve (433) is covered with an adjusting sleeve (435). The inner wall of the adjusting sleeve (435) is provided with a strip groove (4351). A limiting column (4321) that can be extended and inserted into the first limiting groove (434) is arranged in the movable sleeve (432).

4. A display screen module detection device according to claim 3, characterized in that: The bottom end of the limiting sleeve (433) is butt-jointed with a rotating collar (436), the outer side of the bottom end of the rotating collar (436) is connected to the assembly bracket (11) through a ratchet assembly, a linkage groove (4361) is provided on the rotating collar (436), an annular plate is provided on the outer wall of the bottom end of the screw rod (431), a linkage ring plate (4311) is elastically provided on the annular plate, and a plurality of circular protrusions that engage with the bottom end of the movable collar (432) are provided on the upper end surface of the linkage ring plate (4311).

5. A display screen module detection device according to claim 4, characterized in that: The press assembly (42) further comprises a plurality of limit rings (422) corresponding in number to the press head (421) and inserted and installed with the press head (421), and a driving rod (423) used for installing the plurality of limit rings (422), the driving rod (423) and the adjustment sleeve (435) being connected by a gear transmission, the upper end of the press head (421) being connected to an annular pressure plate (4211), and the inner wall of the bottom end of the limit ring (422) being elastically connected to the annular pressure plate (4211).

6. A display screen module detection device according to claim 5, characterized in that: The shape of the pressing end of the pressing head (421) includes but is not limited to a cone, a flat head, a sphere and a wedge.

7. A display screen module detection device according to claim 6, characterized in that: The inner wall of the limiting ring (422) is provided with an annular limiting groove (4222), and two vertical sliding grooves are provided on the annular limiting groove (4222). The outer wall of the annular pressure plate (4211) is provided with a clamping column (4213) clamped with the annular limiting groove (4222).

8. A display screen module detection device according to claim 7, characterized in that: A cleaning assembly (5) is provided at the side end of the laser detection module (2), and the cleaning assembly (5) comprises an inclined annular cleaning member (51), a circular mounting plate (52) is connected at the center of the annular cleaning member (51), a rotating shaft (53) is installed at the center of the mounting plate (52), and a mounting seat (54) connected to the assembly bracket (11) is connected to the upper end of the rotating shaft (53), and an adsorption member (55) is provided on the outer wall of the annular cleaning member (51).

9. A display screen module detection device according to claim 8, characterized in that: The annular cleaning member (51) is a ring with a cleaning sponge wrapped around its surface. The upper end of the rotating shaft (53) is connected to the mounting seat (54) via a ratchet and a pawl. The inclination angle of the annular cleaning member (51) matches the rotation trajectory of the laser confocal microscope unit (21).

10. A display screen module detection device according to claim 9, characterized in that: The adsorption member (55) comprises an adsorption seat (551), an arc-shaped hole (552) for the annular cleaning member (51) to penetrate is arranged in the adsorption seat (551), an adsorption ring is arranged inside the arc-shaped hole, and the adsorption ring is connected to the fan through an air pipe.

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