A fully automatic OLED screen laminating device

Abstract

The present invention provides a fully automatic OLED screen laminating device, including a clean room, wherein an automatic panel laminating device and an automatic panel loading device are provided in the clean room, one end of the automatic panel loading device is connected to the automatic panel laminating device, and the other end is connected to the outside of the clean room, a pressing and transferring machine is installed on the outside of the clean room, a second tooling plate is provided on the pressing and transferring machine, and a 180° flip machine is installed on the top of one end of the pressing and transferring machine. Through the technical solution of the present invention, the fine adjustment of XYR is realized through the precision alignment platform, and the relative error of ±0.1mm is adjusted in combination with the feedback of the camera control software. Precision alignment adopts a professional alignment platform to realize the adjustment of XYR, with an adjustment range of ±5mm in the XY direction and an angle adjustment range of ±1.2°. Repeat positioning accuracy is ±0.005mm. Angle accuracy is ±5arc sec. The technical problem of 0.1mm clamping accuracy of large-size displays is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of OLED screen laminating equipment, and in particular to a fully automatic OLED screen laminating equipment. Background Art

[0002] Most current televisions use light strips as their backlight source, requiring numerous components such as reflectors, light strips, prisms, and diffusers, resulting in a complex assembly process. Mobile phones use OLED screens, which are self-luminous LCDs, and televisions are also actively experimenting with WOLED screens. These screens are highly integrated, and once assembled with the backplane, they complete 50% of the TV assembly process. The assembly (locking) of the screen and backplane is a critical process and requires equipment. Existing technology, while the accuracy of robots alone is sufficient for smaller products, presents a significant challenge for achieving a 0.1mm locking accuracy for large displays. Summary of the Invention

[0003] In order to make up for the deficiencies of the prior art, the present invention provides a fully automatic OLED screen laminating device.

[0004] The present invention is achieved through the following technical solutions: a fully automatic OLED screen laminating device, comprising a clean room, wherein an automatic panel laminating device and an automatic panel loading device are provided in the clean room, one end of the automatic panel loading device is connected to the automatic panel laminating device, and the other end is connected to the outside of the clean room, a pressing and transferring machine is installed on the outside of the clean room, a second tooling plate is provided on the pressing and transferring machine, a 180° flipping machine is installed on the top of one end of the pressing and transferring machine, the automatic panel laminating device comprises a laminating arm assembly, a visual system is provided on the right side of the laminating arm assembly, a backplane lifting and positioning device is installed in the visual system, a first tooling plate is installed on the top of the backplane lifting and positioning device, a horizontal transfer machine is provided on the left side of the laminating arm assembly, a screen flipping machine is provided at the top front end of the horizontal transfer machine, a panel coarse positioning camera is provided at the top rear end of the horizontal transfer machine, a flip control cabinet is provided in front of the screen flipping machine, and is control-connected to the screen flipping machine, a servo control cabinet is provided on the right side of the visual system, and a locking control cabinet and a laminating arm control cabinet are provided behind the horizontal transfer machine.

[0005] As a preferred solution, the visual system includes a visual system frame, which is a rectangular frame with corner cameras movably connected to its four top corners, a long side camera installed at the center of its top long side frame, and a short side camera installed at the center of its top short side frame.

[0006] As a preferred solution, the corner camera is divided into an upper camera facing vertically upward and a lower camera facing vertically downward, and both are movably connected to the vision system frame through a drag chain guide device.

[0007] As a preferred solution, an aluminum pad is fixedly installed on the upper surface of the backboard lifting and positioning device, electromagnets are installed at the four corners of the aluminum pad, and a suction device is provided in the middle of the aluminum pad.

[0008] As a preferred solution, the screen flip machine includes a flip machine base frame, and Z-axis lifting mechanisms are fixedly installed on the left and right ends of the upper surface of the flip machine base frame. A flip suction cup is installed between the Z-axis lifting mechanisms. The flip suction cup adopts two symmetrical suction cups on the upper and lower sides, and the suction cup is equipped with a buffer device. An in-position detection switch is set on the flip suction cup.

[0009] Furthermore, the first tooling plate and the second tooling plate have the same structure, including an aluminum pallet, a bottom support positioning device and a surrounding support positioning device. The bottom support adopts a quick-insert positioning pin and is fixedly installed on the aluminum pallet. The contact with the workpiece is made of nylon material. The surrounding support positioning is a guide rail slider structure set on the aluminum pallet, and forms a quadrilateral support positioning. The width direction support block adopts an integral full-length type, and the length direction adopts a quick-insert fixing block with several independent small support blocks.

[0010] Furthermore, a number of roller auxiliary guide positioning devices are vertically arranged on the surrounding supporting positioning devices, four iron plates are fixed at the four corners below the aluminum pallet, and a suction cup avoidance hole is opened in the middle of the aluminum pallet.

[0011] As a preferred solution, a printer bracket is provided behind the vision system.

[0012] By employing the above technical solutions, the present invention achieves the following advantages over existing technologies: Through this technical solution, a precision alignment platform enables fine-tuning of the X, Y, and R axes, combined with feedback from the camera control software, achieving a relative error of ±0.1mm. Precision alignment employs a specialized alignment platform, enabling X, Y, and R axis adjustment within a ±5mm range in the X and Y directions and an angular adjustment range of ±1.2°. Repeatability is ±0.005mm, and angular accuracy is ±5 arc-second. This solves the technical challenge of achieving a 0.1mm engagement accuracy for large-scale displays.

[0013] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the automatic panel bonding equipment;

[0019] Figure 5 This is a schematic diagram of the top view of the automatic panel bonding equipment;

[0020] Figure 6 Schematic diagram of the three-dimensional structure of the visual system;

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the back plate lifting and positioning device;

[0022] Figure 8 It is a schematic diagram of the three-dimensional structure of the screen flip machine;

[0023] Figure 9 Schematic diagram of the three-dimensional structure of the tooling plate. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0026] The following combination Figures 1 to 9 The fully automatic OLED screen laminating device according to the embodiment of the present invention is described in detail.

[0027] like Figures 1 to 3 As shown, the present invention proposes a fully automatic OLED screen laminating device, including a clean room 1, wherein a panel automatic laminating device 2 and a panel automatic feeding device 3 are arranged in the clean room 1, one end of the panel automatic feeding device 3 is connected to the panel automatic laminating device 2, and the other end is connected to the outside of the clean room 1, a pressing and transferring machine 4 is installed on the outside of the clean room 1, a second tooling plate 6 is provided on the pressing and transferring machine 4, and a 180° turning machine 5 is installed on the top of one end of the pressing and transferring machine 4, as shown in FIG. Figures 4 and 5As shown, the panel automatic bonding equipment 2 includes a bonding arm assembly 2-1, a visual system 2-3 is arranged on the right side of the bonding arm assembly 2-1, a back panel lifting and positioning device 2-2 is installed in the visual system 2-3, and a first tooling plate 2-10 is installed on the top of the back panel lifting and positioning device 2-2, a horizontal transfer machine 2-5 is arranged on the left side of the bonding arm assembly 2-1, a screen flip machine 2-4 is arranged at the top front end of the horizontal transfer machine 2-5, a panel coarse positioning camera 2-6 is arranged at the top rear end of the horizontal transfer machine 2-5, a flip control cabinet 2-7 is arranged in front of the screen flip machine 2-4, and is controlled and connected to the screen flip machine 2-4, a servo control cabinet 2-8 is arranged on the right side of the visual system 2-3, which is used to control the motor power of each device, and a locking control cabinet 2-9 and a bonding arm control cabinet 2-11 are arranged behind the horizontal transfer machine 2-5.

[0028] like Figure 6 As shown, vision system 2-3 includes a vision system frame 2-3-1, which is a rectangular parallelepiped frame. Corner cameras 2-3-2 are movably connected to each of its four corners. A long-side camera 2-3-3 is mounted at the center of its top long side frame, and a short-side camera 2-3-4 is mounted at the center of its top short side frame. Corner cameras 2-3-2 are divided into an upper camera 2-3-5 facing vertically upward and a lower camera 2-3-6 facing vertically downward. Both cameras are movably connected to vision system frame 2-3-1 via a drag chain guide 2-3-7.

[0029] like Figure 7 As shown, an aluminum plate 2-2-1 is fixedly mounted on the upper surface of the back plate lifting and positioning device 2-2, electromagnets 2-2-2 are mounted at the four corners of the aluminum plate 2-2-1, and a suction device 2-2-3 is provided in the middle of the aluminum plate 2-2-1 for sucking the tooling plate. Figure 9As shown, the first tooling plate 2-10 and the second tooling plate 6 have the same structure, including an aluminum pallet 2-10-1, a bottom support positioning device and a surrounding support positioning device. The aluminum pallet is the main body of the tooling and carries the accessories of the tooling plate. The bottom support adopts a quick-insert positioning pin 2-10-2, which is fixedly installed on the aluminum pallet 2-10-1. The contact with the workpiece is made of nylon material to prevent the workpiece from being scratched. The surrounding support positioning is to set a guide slider structure on the aluminum pallet 2-10-1 to form a quadrilateral support positioning. The width direction support block 2-10-3 adopts an integral full-length type and does not need to be replaced, which is compatible with the length direction replacement and size adjustment. The length direction 2-10-4 adopts a quick-insert fixed block with several independent small support blocks to adjust the different support point positions according to different products. Since the workpiece is long, it is composed of independent small support blocks and can be disassembled separately. Several roller auxiliary guide positioning devices 2-10-5 are also vertically arranged on the surrounding support positioning device. They are made of non-metallic materials such as nylon on the outside and bearings on the inside. When the workpiece moves, the roller rotates to prevent the workpiece from being scratched. Four iron plates 2-10-6 are fixed at the four corners below the aluminum pallet 2-10-1, corresponding to the electromagnets at the four corners of the alignment platform, to ensure that the aluminum pallet of the alignment platform and the alignment platform are relatively fixed during the movement. A suction cup avoidance hole 2-10-7 is opened in the middle of the aluminum pallet 2-10-1. After centering, the pneumatic suction cup on the alignment platform rises and sucks the back plate to ensure that the back plate is relatively fixed on the pallet. The position and height of the suction cup need to be adjusted during production change. The changeover time for each tooling plate of the same type of product does not exceed 1min / 2 people. The positioning of the back plate is done by guide rail sliders on all sides, with a set of positioning mechanisms on each side. The lower guide rail slider guides and supports, and the upper part is equipped with a range limiting cylinder and a height positioning block. The materials in contact with the workpiece are all non-metallic wear-resistant materials. Each side's positioning mechanism utilizes quick-release pins, accompanied by a scale and pointer. These self-locking pins allow for quick and easy adjustment without the need for tools. Simply pull the pins to the desired position and the tool change is complete. Pull up in 2 seconds, move in 10 seconds, then press in 2 seconds, repeating the process for the next side. Two people can adjust all four sides in about 40 seconds each. The two to six central support columns also utilize quick-release pins, requiring 3-5 seconds to insert and remove. One person can handle up to three, completing the entire tooling plate changeover in about 10-15 seconds.

[0030] like Figure 8As shown, the screen flipping machine 2-4 comprises a flipping machine base frame 2-4-1. Z-axis lift mechanisms 2-4-2 are fixedly mounted on the left and right ends of the top surface of the flipping machine base frame 2-4-1. A flipping suction cup 2-4-3 is mounted between the Z-axis lift mechanisms 2-4-2. The flipping suction cup 2-4-3 utilizes two symmetrical suction cups, reducing back-and-forth suction cup movement and saving cycle time. The suction cups are equipped with a buffer device to prevent damage to the workpiece during docking with the destacking module and the panel conveyor air flotation platform. An in-position detection switch 2-4-4 is installed on the flipping suction cup to effectively control the position accuracy of each servo movement, preventing overtravel and damage to the workpiece. A multi-loop pneumatic vacuum system is designed to accommodate products of varying specifications and sizes, enabling controlled activation and deactivation of the vacuum system based on the product model. This system also prevents malfunctions due to damage to individual vacuum cups or suction cups. The multi-loop pneumatic vacuum system monitors vacuum levels at multiple points. If the vacuum level does not meet the required level, the robotic arm will not operate, preventing handover failures. The 180° flipping mechanism provides suction and flips the workpiece 180°. The panel is placed display-side up on the air-floating table and transported to the robot gripping station. The 180° flip mechanism adsorbs and flips 180°. The panel is placed display-side up on the air-floating table and transported to the robot gripping station. The air-floating table has side panels and a centering mechanism to position the panel on the table. The suction robot uses a vacuum pump and a non-marking suction cup to grasp the display surface of the panel and move it to the engagement station. The robot's inherent precision ensures the panel's rough positioning. The backplane centering table uses two pairs of servo width pushers and two pairs of servo or cylinder length pushers for center alignment. XY error is ±1mm, and center angle deviation is ±1°; deviation is less than ±2mm.

[0031] A printer bracket 2-12 is provided behind the vision system 2-3.

[0032] Working process: Using robots to take the panel for preliminary positioning 8 downward & upward quad cameras & positioning platform for rough positioning (Robot moves) Downward-facing four-side camera & downward-facing four-corner camera & positioning platform for precise positioning (The positioning platform lifts and moves) to complete the engagement.

[0033] At the module assembly point, B / C is roughly aligned using a positioning tool. A CCD (eight cameras) at each of the four corners (upper and lower) takes photos to confirm relative position. The CCDs are then withdrawn. When the panel is approximately 2mm close to B / C, photos are taken using the downward-facing CCDs at the four sides and four corners. Combined with precise positioning on the alignment platform, the panel is pressed together. The panel pressing equipment is separated from the assembly line to prevent line vibration from affecting pressing accuracy.

[0034] A step-by-step approach is used to ultimately meet the relative error requirement of ±0.1mm;

[0035] 1) The panel coarse centering air bearing table adopts two pairs of servo three-side push + tilt, center alignment, XY error ±1mm, center angle deviation ±1°;

[0036] 2) The suction manipulator uses a vacuum pump to draw vacuum and a non-marking suction cup to absorb the display surface of the panel and move it to the engaging position through the robot. The robot adjusts the panel so that the repeated position deviation is less than ±2mm.

[0037] 3) Rough positioning of the back plate: Place the tooling plate 5-10mm away from the speed chain, and limit the tooling plate position within ±1mm through the tooling plate lifting mechanism (2 pins on one side + 4 magnets);

[0038] 4) Two rollers are set on each side of the tooling plate, and multiple supports are provided underneath to ensure the flatness of the back plate, so that the position error of the back plate is ±1mm;

[0039] 5) Finally, a precision alignment platform enables fine-tuning of the XYR axis. Combined with feedback from the camera control software, adjustments are achieved to a relative error of ±0.1mm. This precision alignment utilizes a specialized alignment platform, enabling XYR adjustments within a ±5mm adjustment range in the XY direction and a ±1.2° angular adjustment range. Repeatability is ±0.005mm, and angular accuracy is ±5 arc-second.

[0040] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise expressly defined, the orientations or positional relationships indicated by the terms "upper" and "lower" are based on the orientations or positional relationships shown in the accompanying drawings. They are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connect," "install," and "fix" should be understood in a broad sense. For example, "connection" can mean a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0042] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fully automatic OLED screen laminating device, comprising a clean room (1), characterized in that The clean room (1) is provided with an automatic panel laminating device (2) and an automatic panel loading device (3), one end of the automatic panel loading device (3) is connected to the automatic panel laminating device (2), and the other end is connected to the outside of the clean room (1), a pressing transfer machine (4) is installed on the outside of the clean room (1), a second tooling plate (6) is provided on the pressing transfer machine (4), and a 180° flipping machine (5) is installed on the top of one end of the pressing transfer machine (4), the automatic panel laminating device (2) includes a laminating arm assembly (2-1), a visual system (2-3) is provided on the right side of the laminating arm assembly (2-1), a backboard lifting and positioning device (2-2) is installed in the visual system (2-3), and a first tooling plate (2-10) is installed on the top of the backboard lifting and positioning device (2-2), a horizontal transfer machine (2-5) is provided on the left side of the laminating arm assembly (2-1), and a screen flipping machine (2-4) is provided at the top front end of the horizontal transfer machine (2-5). , a panel coarse positioning camera (2-6) is provided at the top rear end of the horizontal transfer machine (2-5), a flip control cabinet (2-7) is provided in front of the screen flip machine (2-4), and is controlled and connected with the screen flip machine (2-4), a servo control cabinet (2-8) is provided on the right side of the visual system (2-3), a locking control cabinet (2-9) and a fitting arm control cabinet (2-11) are provided at the rear of the horizontal transfer machine (2-5), the first tooling plate (2-10) and the second tooling plate (6) have the same structure, including an aluminum pallet (2-10-1), a bottom support positioning device and a surrounding support positioning device, the bottom support positioning device adopts a quick-insert positioning pin (2-10-2), fixed It is installed on an aluminum pallet (2-10-1), and the surrounding support and positioning devices are guide rail slider structures provided on the aluminum pallet (2-10-1). Support blocks are provided on the guide rail slider structure to form a quadrilateral support and positioning. The width direction support block (2-10-3) adopts an integral full-length type, and the length direction (2-10-4) adopts a quick-insert fixed block composed of several independent small support blocks. Several roller auxiliary guide positioning devices (2-10-5) are also vertically provided on the surrounding support and positioning devices. Four iron plates (2-10-6) are fixed at the four corners below the aluminum pallet (2-10-1), and a suction cup avoidance hole (2-10-7) is opened in the middle of the aluminum pallet (2-10-1).

2. The fully automatic OLED screen laminating device according to claim 1, characterized in that The visual system (2-3) includes a visual system frame (2-3-1), which is a rectangular frame. The four corners of the top are movably connected to corner cameras (2-3-2), the center position of the top long side frame is equipped with a long side camera (2-3-3), and the center position of the top short side frame is equipped with a short side camera (2-3-4).

3. The fully automatic OLED screen laminating device according to claim 2, characterized in that The corner camera (2-3-2) is divided into an upper camera (2-3-5) facing vertically upward and a lower camera (2-3-6) facing vertically downward, and both are movably connected to the visual system frame (2-3-1) through a drag chain guide device (2-3-7).

4. The fully automatic OLED screen laminating device according to claim 1, characterized in that An aluminum pad (2-2-1) is fixedly mounted on the upper surface of the back plate lifting and positioning device (2-2), electromagnets (2-2-2) are mounted at the four corners of the aluminum pad (2-2-1), and a suction device (2-2-3) is provided in the middle of the aluminum pad (2-2-1).

5. The fully automatic OLED screen laminating device according to claim 1 is characterized in that The screen flip machine (2-4) includes a flip machine base frame (2-4-1), and Z-axis lifting mechanisms (2-4-2) are fixedly installed on the left and right ends of the upper surface of the flip machine base frame (2-4-1). A flip suction cup (2-4-3) is installed between the Z-axis lifting mechanisms (2-4-2). The flip suction cup (2-4-3) adopts a two-sided suction cup that is symmetrical on the upper and lower sides, and the suction cup is provided with a buffer device. An in-position detection switch (2-4-4) is set on the flip suction cup.

6. The fully automatic OLED screen laminating device according to claim 1, characterized in that A printer bracket (2-12) is provided behind the visual system (2-3).

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