Display panel appearance inspection machine

Abstract

The application provides a display panel appearance inspection machine and relates to the technical field of display panel appearance inspection, which comprises a rack, a detection system and a supporting system arranged on one side of the detection system, wherein the supporting system comprises a lifting and rotating mechanism and a supporting mechanism, the supporting mechanism is designed as a double-strip plate supporting mechanism, and the top of the lifting and rotating mechanism is provided with a center panel. The display panel is fixed by adopting two parallel and spaced strip-shaped suction cups, the area occupied by the two parallel and spaced strip-shaped suction cups is small, sufficient space is provided for the design of the center panel of the lifting and rotating mechanism, the center panel can also stably support the display panel in the posture exchange process, and the problems of panel deformation, influence on detection precision and even damage to the panel are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of display panel appearance inspection technology, and particularly relates to a display panel appearance inspection machine. BACKGROUND

[0002] Display panels (such as LCD and OLED panels) need to be strictly inspected in the production process.

[0003] The existing appearance inspection machine usually adopts a double-support structure system to realize the detection and posture exchange function; the system mainly comprises a main support table fixed in a detection shell and an independently arranged lifting and rotating mechanism; the main support table bears and stabilizes the panel to perform image acquisition, and the lifting and rotating mechanism is used for converting the posture of the display panel. In the current standard design, the two components are distributed in parallel or inside and outside to avoid motion interference, and respectively occupy different projection areas below the panel, and each provides support to the panel through an independent contact surface.

[0004] When a large panel is detected, the limited bottom projection area needs to accommodate two independent support systems (the main support table and the lifting and rotating mechanism), which is difficult to provide uniform and stable area support, is easy to cause panel deformation, affects the detection accuracy, and even causes damage to the panel. SUMMARY

[0005] In view of the defects of the prior art, the application provides a display panel appearance inspection machine, which solves the problems of panel deformation, affects the detection accuracy, and even causes damage to the panel when a large panel is detected.

[0006] To achieve the above purpose, the application is implemented through the following technical solutions:

[0007] The display panel appearance inspection machine comprises a rack, a detection system, and a support system arranged on one side of the detection system; the support system comprises a lifting and rotating mechanism and a support mechanism;

[0008] The support mechanism is a double-strip plate support mechanism, which comprises two parallel and spaced strip suction cups;

[0009] The lifting and rotating mechanism is provided with a center panel at the top; the center panel is located between the two strip suction cups;

[0010] The center panel is provided with a group of auxiliary support pieces capable of independently lifting and descending relative to the center panel at the two side edges close to the strip suction cups;

[0011] The area of the center panel accounts for at least 30%-50% of the bottom projection area of the display panel.

[0012] Preferably, the lifting and rotating mechanism comprises:

[0013] a first bracket, a sliding middle frame is arranged on the inner side of the first bracket;

[0014] a lifting driving assembly, which is installed below the first bracket and is used to drive the sliding middle frame to slide up and down;

[0015] a rotating driving assembly, which comprises a rotating motor fixedly installed on the top of the sliding middle frame and a top rod member driven by the rotating motor;

[0016] a panel bearing assembly, which is installed on the top end of the top rod member and comprises:

[0017] a mounting beam, the bottom of which is fixedly connected with the top rod member, and the top of which is fixedly installed with the central panel;

[0018] a lateral expansion mechanism, which comprises a side pushing member fixedly installed on the bottom of the mounting beam, and an extension block fixedly connected with the output end of the side pushing member and slidably matched with the mounting beam, and the top of the extension block is fixedly installed with an extension panel;

[0019] the extension panel is arranged adjacent to the central panel, and a gap is left between the two, in which a reverse U-shaped elastic sheet member is installed, which is configured to change the height of the top thereof when switching between the compressed state and the released state.

[0020] Preferably, the lifting driving assembly comprises:

[0021] a second bracket, which is fixedly installed on the bottom of the first bracket;

[0022] a lifting motor, which is fixedly installed below the second bracket; and

[0023] a screw rod member driven by the lifting motor and threadedly matched with the sliding middle frame.

[0024] Preferably, the double-strip plate supporting mechanism comprises:

[0025] a double-mover reverse linear module;

[0026] two support moving base plates, which are respectively fixedly installed on the two action output ends of the double-mover reverse linear module;

[0027] two groups of strip-shaped suction cups, which are respectively fixedly installed on the top of the two support moving base plates.

[0028] Preferably, the detection system comprises:

[0029] a Y-axis module;

[0030] a gantry, which is fixedly installed on the action output end of the Y-axis module;

[0031] A double-mover linear motor piece is fixedly installed on the top beam of the gantry;

[0032] Two mounting plates are fixedly installed on the two action output ends of the double-mover linear motor piece, respectively;

[0033] Two visual detection modules are fixedly installed on each of the mounting plates and are arranged in a vertical direction.

[0034] Preferably, the gantry comprises a support assembly, a bottom platform, a middle platform, and an isosceles trapezoidal cover frame.

[0035] The support assembly is composed of four groups of vertically arranged support rods, the bottom ends of which are fixedly connected to the bottom platform, the middle parts of which are fixedly connected to the middle platform, and the top ends of which are fixedly connected to the isosceles trapezoidal cover frame.

[0036] The middle platform is fixedly installed with a marble plate, and the detection system and the support system are installed on the marble plate.

[0037] The bottom of the isosceles trapezoidal cover frame is provided with a downward channel opening, and each end of the channel opening is fixedly installed with an extension frame.

[0038] Further comprising two groups of taking / placing material mechanical arm assemblies, which are respectively installed on the inside of the two sides of the channel opening and extend towards the two ends of the channel opening.

[0039] Preferably, the taking / placing material mechanical arm assembly comprises:

[0040] A base plate piece is fixedly installed on the inside of the channel opening.

[0041] A first X-axis module is fixedly installed on the base plate piece.

[0042] A first Z-axis module is fixedly installed on the action output end of the first X-axis module.

[0043] A suction disc frame is fixedly installed on the bottom telescopic end of the first Z-axis module.

[0044] A plurality of suction disc pieces are uniformly distributed on the bottom of the suction disc frame.

[0045] Preferably, a conveying line is provided on the outside of the gantry and corresponds to the position of the taking / placing material mechanical arm assembly.

[0046] Preferably, the surface of the inverted U-shaped elastic sheet piece is provided with an elastic pad layer.

[0047] Preferably, a acrylic plate is installed on the outside of the gantry.

[0048] The display panel appearance inspection machine has the following beneficial effects:

[0049] 1、The display panel appearance inspection machine has the following beneficial effects:

[0050] 2、The display panel appearance inspection machine has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 FIG. 1 is a perspective view of the display panel appearance inspection machine;

[0052] Figure 2 FIG. 2 is a front view of the display panel appearance inspection machine;

[0053] Figure 3 FIG. 3 is a perspective view of the frame structure of the display panel appearance inspection machine;

[0054] Figure 4 FIG. 4 is a schematic view of the support system and the detection system of the display panel appearance inspection machine;

[0055] Figure 5 FIG. 5 is a perspective view of the lifting and rotating mechanism of the display panel appearance inspection machine;

[0056] Figure 6 FIG. 6 is a perspective view of the lifting and rotating mechanism of the display panel appearance inspection machine;

[0057] Figure 7 FIG. 7 is a distribution schematic view of the strip-shaped suction cups and the center panel of the display panel appearance inspection machine;

[0058] Figure 8 FIG. 8 is a schematic view of the strip-shaped suction cups supporting the display panel of the display panel appearance inspection machine;

[0059] Figure 9This is a schematic diagram of the lifting and rotating mechanism of the display panel appearance inspection machine proposed in this invention, which manipulates the display panel to fall onto the display panel.

[0060] The components include: 1. Frame; 101. Support assembly; 102. Bottom platform; 103. Middle platform; 104. Isosceles trapezoidal cover frame; 105. Channel opening; 106. Extension frame; 2. Picking / unloading robotic arm assembly; 201. Base plate component; 202. First X-axis module; 203. First Z-axis module; 204. Suction cup frame; 205. Suction cup component; 3. Support system; 301. Lifting and rotating mechanism; 301a. First bracket; 301b. Sliding middle frame; 301c. Rotary motor; 301d. Top rod component; 301e. Second bracket; 301f. Lifting motor; 301g, screw component; 301h, side push component; 301i, extension block; 301j, center panel; 301k, extension panel; 301m, inverted U-shaped elastic sheet component; 301n, mounting beam; 302, double strip plate support mechanism; 302a, strip suction cup; 302b, support moving base plate; 302c, double mover reverse linear module; 4. Detection system; 401, Y-axis module; 402, gantry; 403, double mover linear motor component; 404, mounting plate; 405, vision inspection module; 5. Conveyor line; a, display panel. Detailed Implementation

[0061] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0062] like Figures 1-9 As shown, this embodiment of the invention provides a display panel appearance inspection machine, including a frame 1, an inspection system 4, and a support system 3 disposed on one side of the inspection system 4.

[0063] The rack 1 provides space for installation and testing. The testing system 4 and the support system 3 are installed on the rack 1. The support system 3 includes a lifting and rotating mechanism 301 and a support mechanism. When performing appearance testing on the display panel, the display panel is manipulated to be placed flat on the support mechanism. The testing system 4 performs testing on the first position of the display panel. The lifting and rotating mechanism 301 lifts the display panel and independently supports it. The display panel is lifted upward and driven to rotate by a predetermined angle, such as 90°. Then the lifting and rotating mechanism 301 falls back down, and the support mechanism independently supports the display panel again. The testing system 4 performs testing on the second position of the display panel.

[0064] In one specific design, the support mechanism is designed as a double-strip plate support mechanism 302, which includes two parallel and spaced-apart strip-shaped suction cups 302a, such as... Figure 8 As shown, when the two parallel and spaced strip-shaped suction cups 302a support the display panel a, the strip-shaped suction cups 302a work and apply suction to the display panel a. This suction fixes the contact position between the two strip-shaped suction cups 302a, so that the central area of ​​the display panel a cannot bend in the center due to the tension on both sides, thus effectively protecting the display panel a. In addition, the area occupied by the two parallel and spaced strip-shaped suction cups 302a is small, which provides sufficient space for the design of the central panel 301j of the lifting and rotating mechanism, ensuring that the central panel can stably support the display panel during the posture exchange process.

[0065] The strip suction cup 302a is specifically a long strip-shaped, multi-point or linear vacuum adsorption structure; for example, the ZPT series (thin suction cup); or it can be formed by arraying traditional single-point suction cups to create a long strip-shaped area.

[0066] In one specific design, a central panel 301j is provided on the top of the lifting and rotating mechanism 301. The central panel 301j is a structure that directly contacts and supports the display panel a. The central panel 301j is located between two strip-shaped suction cups 302a. Placing the central panel 301j between the two strip-shaped suction cups 302a helps to prevent motion interference with the strip-shaped suction cups 302a during the driving rotation process.

[0067] In the design of the center panel 301j, the area of ​​the center panel 301j is required to account for at least 30%-50% of the bottom projection area of ​​the display panel a, such as 40% or 45%, so that it can provide stable support to the bottom of the display panel a with a large area. In other words, when the center panel 301j supports the display panel a, the deformation of the non-contact area of ​​the display panel a is within a controllable range, so as to avoid problems such as panel deformation, affecting detection accuracy, or even causing damage to the panel.

[0068] Considering that during the process of the central panel 301j supporting the display panel a, the area of ​​the non-contact central panel 301j display panel a deforms, and this part happens to coincide with the corresponding area of ​​the strip suction cup 302a, how to place the display panel a flat on the strip suction cup 302a after the posture is changed is a problem to be solved. This is of great significance to ensure the detection accuracy of the display panel and avoid damage to the display panel during the detection process.

[0069] On both sides of the central panel 301j near the strip-shaped suction cup 302a, there is a set of auxiliary support members that can move up and down independently of the central panel 301j; such as Figure 9 As shown, the auxiliary supports lift the left and right sides of the display panel a, causing it to tilt slightly upwards. One purpose of this design is to prevent the display panel a from pressing downwards onto the side edge of the central panel 301j, which is suspended over the central panel 301j, thus preventing localized stress concentration and linear micro-damage. Another purpose is to ensure that after the orientation change, the display panel a is placed flat on the strip-shaped suction cup 302a. Figure 9 As shown, the control center panel 301j falls back to the same height as the strip suction cup 302a, then the auxiliary support is lowered, and then the strip suction cup 302a works to perform vacuum adsorption and fixation.

[0070] In one embodiment, the lifting and rotating mechanism 301 includes: a first bracket 301a, a lifting drive assembly, a rotating drive assembly, and a panel support assembly.

[0071] The first bracket 301a is shaped like an inverted "V" and is mounted on the frame 1. A sliding middle frame 301b is slidably arranged on the inner side of the first bracket 301a. The sliding middle frame 301b slides stably up and down on a correspondingly designed guide rail. The lifting drive assembly is a lifting power component, installed below the first bracket 301a, and is used to drive the sliding middle frame 301b to slide up and down. The rotation drive assembly is a rotation power component, which includes a rotary motor 301c fixedly installed on the top of the sliding middle frame 301b, and a top rod 301d driven by the rotary motor 301c. The rotary motor 301c drives the top rod 301d to rotate. The panel support assembly is installed on the top of the top rod 301d. The panel support assembly is the part that directly contacts the display panel a. It can move up and down and rotate, thereby driving the display panel a to change its posture.

[0072] The panel support assembly includes: mounting beam 301n, lateral expansion mechanism and inverted U-shaped elastic sheet 301m; in the process of designing this part of the structure, the function of auxiliary support component was realized simultaneously, and the inverted U-shaped elastic sheet 301m can be considered as constituting auxiliary support component.

[0073] The bottom of the mounting beam 301n is fixedly installed with the top rod 301d, and the top is fixedly installed with the center panel 301j. The area of ​​the center panel 301j must occupy at least 30%-50% of the bottom projection area of ​​the display panel a. A larger area of ​​support is placed at the bottom of the display panel a to ensure stable support. Generally, a necessary protective pad structure can be designed on the center panel 301j to prevent damage during the support compression process. The lateral expansion mechanism includes a side pusher 301h fixed to the bottom of the mounting beam 301n, and an extension block 301i fixedly connected to the output end of the side pusher 301h and slidingly engaged with the mounting beam 301n. An extension panel 301k is fixedly mounted on the top of i. The side pusher 301h can be a precision cylinder to push the extension block 301i to slide along the length of the mounting beam 301n. The extension block 301i drives the extension panel 301k to move. The top surface of the extension panel 301k is flush with the top surface of the center panel 301j. The extension panel 301k and the center panel 301j are arranged adjacent to each other, and there is a gap between the extension panel 301k and the center panel 301j. An inverted U-shaped elastic sheet 301m is installed in the gap. The inverted U-shaped elastic sheet 301m is configured such that its top height changes accordingly when switching between its compressed state and its released state.

[0074] When the side pusher 301h pushes the extension block 301i, and in turn pushes the extension panel 301k away from the center panel 301j, the gap between the extension panel 301k and the center panel 301j increases, causing the inverted U-shaped elastic sheet 301m to deform, thereby reducing the height of the inverted U-shaped elastic sheet 301m; conversely, when the side pusher 301h pulls the extension block 301i to move inward, the gap between the extension panel 301k and the center panel 301j decreases, compressing and deforming the inverted U-shaped elastic sheet 301m, thereby increasing the top height of the inverted U-shaped elastic sheet 301m.

[0075] In one embodiment, the lifting drive assembly includes: a second bracket 301e, a lifting motor 301f, and a screw 301g.

[0076] The second bracket 301e is fixedly installed at the bottom of the first bracket 301a, and the lifting motor 301f is fixedly installed below the second bracket 301e. The output end of the lifting motor 301f passes through the bottom of the second bracket 301e and is located inside the second bracket 301e. The output end of the lifting motor 301f is connected to the screw rod 301g through a coupling. The screw rod 301g cooperates with the sliding middle frame 301b. The screw rod 301g and the bottom of the first bracket 301a are rotatably installed using bearings / sleeves.

[0077] During operation, the lifting motor 301f drives the screw component 301g to rotate. The screw component 301g is threadedly engaged with the sliding middle frame 301b, forming a lead screw mechanism that drives the sliding middle frame 301b to move up and down.

[0078] In one embodiment, the dual strip plate support mechanism 302 includes: a dual-moving reverse linear module 302c, two supporting movable base plates 302b, and two sets of strip-shaped suction cups 302a.

[0079] The double-acting reverse linear module 302c is a special type of precision linear motion mechanism. Its core feature is that it integrates two independently controllable motion sliders on a single linear guide rail. For example, it can be an electromagnetically driven double-acting reverse linear module 302c, or a module with synchronous reverse movement composed of a lead screw structure.

[0080] Two supporting movable base plates 302b are respectively fixedly installed on the two action output ends of the double-actuator reverse linear module 302c; two sets of strip-shaped suction cups 302a are respectively fixedly installed on the top of the two supporting movable base plates 302b.

[0081] In general, the dual-actuator reverse linear module 302c adopts a customized solution. It can be based on the high-rigidity slide rail of the THK SR25W series, combined with a left- or right-handed ball screw (such as model BLK2520-5RRG0+502LC5, where RR indicates right-handed). It synchronously drives the two support moving plates 302b to move inward or outward, that is, always keep the two support moving plates 302b symmetrically distributed on both sides of the display panel a, thereby adjusting the spacing between the two sets of strip suction cups 302a to meet the detection requirements of display panels a of different sizes (width / length).

[0082] In one embodiment, the detection system 4 includes: a Y-axis module 401, a gantry 402, a dual-actuator linear motor 403, two mounting plates 404, and a vision detection module 405; the vision detection module 405 uses an industrial CCD camera and is equipped with a traditional detection and recognition algorithm.

[0083] The gantry 402 is fixedly installed on the action output end of the Y-axis module 401. The dual-actuator linear motor 403 is fixedly installed on the top crossbeam of the gantry 402. Two mounting plates 404 are respectively fixedly installed on the two action output ends of the dual-actuator linear motor 403. Two vision inspection modules 405 are fixedly installed on each mounting plate 404 at intervals along the vertical direction.

[0084] During testing, the dual-actuator linear motor 403 drives the two mounting plates 404 to move, adjusting their positions so that the side of the display panel a is located between the two visual inspection modules 405 spaced apart on the same mounting plate 404. As the Y-axis module 401 drives the gantry 402, the dual-actuator linear motor 403, the two mounting plates 404, and the visual inspection modules 405 to move synchronously, the side of the display panel is inspected from all angles.

[0085] For example, display panel a has a rectangular structure with two sets of opposite sides. The above process detects one set of opposite sides; after the lifting and rotating mechanism 301 manipulates the display panel a to rotate 90°, the other set of opposite sides is detected.

[0086] In one embodiment, the frame 1 includes: a support assembly 101, a bottom platform 102, a middle platform 103, and an isosceles trapezoidal cover 104.

[0087] The support assembly 101 consists of four sets of vertically arranged support rods. Its bottom end is fixedly connected to the bottom platform 102, its middle part is fixedly connected to the middle platform 103, and its top end is fixedly connected to the isosceles trapezoidal cover frame 104.

[0088] A marble slab is fixedly installed on the central platform 103. The detection system 4 and the support system 3 are both installed on the marble slab. The flatness of the top of the marble slab is controlled within 0.1mm to ensure the installation accuracy of the detection system 4 and the support system 3.

[0089] The bottom of the isosceles trapezoidal cover 104 has a downward-facing channel opening 105, and an extension frame 106 is fixedly installed at each end of the channel opening 105. Two sets of material picking / discharging robotic arm assemblies 2 are also designed, which are respectively installed on both sides inside the channel opening 105 and extend towards both ends of the channel opening 105. The extension frame 106 is used to assist in the installation of the material picking / discharging robotic arm assemblies 2.

[0090] Generally, an acrylic sheet (not shown in the attached diagram) is installed on the outside of the frame 1 to form a box-like structure, ensuring the cleanliness of the internal working area.

[0091] In one embodiment, the picking / placing robotic arm assembly 2 includes: a base plate 201, a first X-axis module 202, a first Z-axis module 203, a suction cup holder 204, and a plurality of suction cup components 205.

[0092] The base plate 201 is fixedly installed on the inner side of the channel opening 105. The first X-axis module is fixedly installed on the base plate 201. The first Z-axis module 203 is fixedly installed on the action output end of the first X-axis module 202. The suction cup frame 204 is fixedly installed on the bottom telescopic end of the first Z-axis module 203. Multiple suction cup components 205 are evenly distributed on the bottom of the suction cup frame 204.

[0093] The first X-axis module 202 and the first Z-axis module 203 constitute an X-axis-Z-axis moving mechanism, which is used to manipulate the suction cup frame 204 and multiple suction cup components 205 to grab the display panel a and move it into the frame 1 or to grab and move the detected display panel a to the outside, thereby realizing the function of picking up / putting materials.

[0094] Multiple suction cup components 205 are evenly distributed at the bottom of the suction cup frame 204, taking into full account the need to ensure that the display panel a is horizontal when gripping the display panel a, and to avoid deformation of the display panel a; the suction cup components 205 are, for example, non-marking suction cups, to avoid leaving marks on the surface of the display panel.

[0095] In one embodiment, a conveyor line 5 is also designed. The conveyor line 5 is located on the outside of the frame 1 and at a position corresponding to the picking / placing robotic arm assembly 2. The conveyor line 5 is used to move the display panel a to a predetermined position to facilitate the picking / placing robotic arm assembly 2 to pick up materials, or to facilitate the material sent out by the picking / placing robotic arm assembly 2 to be transported to the next process.

[0096] In one embodiment, an elastic pad is provided on the surface of the inverted U-shaped elastic sheet 301m, the elastic pad being used to protect the display panel a.

[0097] It is worth noting that the first X-axis module, the first Z-axis module, and the Y-axis module described above are all high-precision servo-driven linear molds with position feedback, which can be purchased from the market according to the accuracy and stroke requirements.

[0098] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A display panel appearance inspection machine, comprising a frame (1), an inspection system (4), and a support system (3) disposed on one side of the inspection system (4), the support system (3) comprising a lifting and rotating mechanism (301) and a support mechanism, characterized in that: The support mechanism is a double strip plate support mechanism (302), which includes two parallel and spaced strip suction cups (302a). The top of the lifting and rotating mechanism (301) is provided with a central panel (301j), which is located between the two strip-shaped suction cups (302a); The central panel (301j) is provided with a set of auxiliary support members on each side edge near the strip-shaped suction cup (302a), which can move up and down independently of the central panel (301j); The area of ​​the central panel (301j) occupies at least 30%-50% of the bottom projection area of ​​the display panel (a); The lifting and rotating mechanism (301) includes a mounting beam (301n), and the center panel (301j) is fixedly mounted on the top of the mounting beam (301n). The auxiliary support includes: a lateral expansion mechanism, an inverted U-shaped elastic sheet (301m), and a mounting beam (301n). The lateral expansion mechanism includes a side pusher (301h) fixed to the bottom of the mounting beam (301n), and an extension block (301i) fixedly connected to the output end of the side pusher (301h) and slidably engaged with the mounting beam (301n). An extension panel (301k) is fixedly installed on the top of the extension block (301i). The extension panel (301k) is arranged adjacent to the center panel (301j) with a gap between them. An inverted U-shaped elastic piece (301m) is installed in the gap. The inverted U-shaped elastic piece (301m) is configured such that its top height changes accordingly when it switches between its compressed state and its released state. The surface of the inverted U-shaped elastic sheet (301m) is provided with an elastic pad layer.

2. The display panel appearance inspection machine according to claim 1, characterized in that, The lifting and rotating mechanism (301) includes: The first bracket (301a) has a sliding middle frame (301b) slidably disposed on its inner side. A lifting drive assembly is installed below the first bracket (301a) and is used to drive the sliding middle frame (301b) to slide up and down; The rotary drive assembly includes a rotary motor (301c) fixedly mounted on the top of the sliding frame (301b), and a top rod (301d) driven by the rotary motor (301c). A panel support assembly is mounted on the top of the top rod (301d); The bottom of the mounting beam (301n) is fixedly connected to the top member (301d).

3. The display panel appearance inspection machine according to claim 2, characterized in that, The lifting drive component includes: The second bracket (301e) is fixedly installed at the bottom of the first bracket (301a); The lifting motor (301f) is fixedly installed below the second bracket (301e); and A screw component (301g) driven by the lifting motor (301f) and threadedly engaged with the sliding middle frame (301b).

4. The display panel appearance inspection machine according to claim 1, characterized in that, The double-strip plate support mechanism (302) includes: A dual-motor reverse linear module (302c); Two supporting movable base plates (302b) are respectively fixedly mounted on the two action output ends of the dual-actuator reverse linear module (302c); Two sets of strip-shaped suction cups (302a) are fixedly mounted on the top of the two supporting movable substrates (302b).

5. The display panel appearance inspection machine according to claim 1, characterized in that, The detection system (4) includes: Y-axis module (401); A gantry (402) is fixedly mounted on the action output end of the Y-axis module (401); A double-acting linear motor component (403) is fixedly mounted on the top crossbeam of the gantry (402); Two mounting plates (404) are respectively fixedly mounted on the two action output ends of the double-acting linear motor component (403); Two visual inspection modules (405) are fixedly installed on each of the mounting plates (404) and spaced apart in the vertical direction.

6. The display panel appearance inspection machine according to claim 1, characterized in that, The frame (1) includes: a support assembly (101), a bottom platform (102), a middle platform (103), and an isosceles trapezoidal cover frame (104). The support assembly (101) consists of four sets of vertically arranged support rods, with its bottom end fixedly connected to the bottom platform (102), its middle part fixedly connected to the middle platform (103), and its top end fixedly connected to the isosceles trapezoidal cover frame (104). Among them, a marble slab is fixedly installed on the central platform (103), and the detection system (4) and the support system (3) are both installed on the marble slab; The bottom of the isosceles trapezoidal cover (104) has a downward-facing passage (105), and an extension frame (106) is fixedly installed at each end of the passage (105). It also includes: two sets of material handling / discharging robotic arm assemblies (2), which are respectively installed on both sides of the inside of the channel opening (105) and extend toward both ends of the channel opening (105).

7. The display panel appearance inspection machine according to claim 6, characterized in that, The material handling / discharging robotic arm assembly (2) includes: The base plate (201) is fixedly installed on the inside of the channel opening (105); The first X-axis module (202) is fixedly mounted on the base plate (201); The first Z-axis module (203) is fixedly installed on the motion output end of the first X-axis module (202); The suction cup holder (204) is fixedly installed at the bottom telescopic end of the first Z-axis module (203); Multiple suction cup components (205) are evenly distributed at the bottom of the suction cup holder (204).

8. The display panel appearance inspection machine according to claim 6, characterized in that, Also includes: The conveyor line (5) is located on the outside of the frame (1) and at a position corresponding to the material handling robot arm assembly (2).

9. The display panel appearance inspection machine according to claim 1, characterized in that: An acrylic sheet is installed on the outside of the frame (1).

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