Automatic assembling device for display screen

Abstract

The invention discloses an automatic display screen assembling device which comprises a fixed supporting structure, a display shell assembling mechanism is fixedly connected to the inner side of the bottom of the fixed supporting structure, a display screen assembling mechanism is arranged at the upper end of the display shell assembling mechanism, and a CCD visual grabbing device is arranged on one side of the display screen assembling mechanism. A dispensing device is arranged at the upper end of the display screen assembling mechanism; the fixed supporting structure comprises a supporting frame, one side of the upper end of the supporting frame is fixedly connected with a first longitudinal lead screw motor moving device, and one side of the upper end of the supporting frame is provided with a display shell assembling feeding opening; the device has the beneficial effects that by introducing automatic assemblies such as a CCD visual grabbing device, a dispensing device and a multi-axis control system, the assembly, dispensing and alignment processes of the display shell can be automatically completed without manual intervention, and the full-automatic process can effectively reduce errors caused by manual operation and improve the production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of display screens, and in particular relates to an automatic assembly device for a display screen. Background Art

[0002] With the development of science and technology, display screens are increasingly used in various electronic products, including smart phones, televisions, computers, tablet computers, and car displays. The manufacturing process of display screens involves multiple key links, such as panel processing, display driver, circuit connection, screen bonding, packaging, etc. These processes usually require high-precision operations and high-efficiency production equipment to ensure the quality and performance of the final display screen. Traditional display screen assembly processes often rely on manual operations, especially in panel bonding, circuit connection, sensor integration, etc. Although these manual operations can meet the needs of small-batch production, with the increasing market demand for large-scale, high-quality production, manual assembly faces the following problems. Due to the influence of human factors, errors or inconsistencies are prone to occur during the manual assembly process, resulting in unstable quality of the display screen, low yield, high labor costs, and even high failure rates, which seriously affect the overall quality of the product.

[0003] Chinese patent CN118492895A discloses a fully automatic assembly device for an LED display screen, including a processing table 1, an upper bracket 2 is arranged on the top of the processing table 1, a hydraulic cylinder 3 is fixed on the top of the upper bracket 2, a pressing plate 4 is fixed on the bottom of the telescopic end of the hydraulic cylinder 3, a linear motor 2 10 is fixed on the front side of the top of the processing table 1, a loading box 5 is fixed on the top of the moving end of the linear motor 2 10, a linear motor 1 9 is fixed on the rear side of the top of the processing table 1, a U-shaped through-hole frame 6 is fixed on the top of the moving end of the linear motor 19, a lifting plate 11 is transversely penetrated and slidably installed on both sides of the bottom of the U-shaped through-hole frame 6, a sliding column 14 is penetrated and slidably installed on both sides of the top of the U-shaped through-hole frame 6, and a spring is arranged between the sliding column 14 and the U-shaped through-hole frame 6, a hinged rod 15 is hinged on the side of the sliding column 14 away from the center of the U-shaped through-hole frame 6, and the end of the hinged rod 15 away from the sliding column 14 is hinged on the lifting plate The top of 11, T-shaped square rods 12 are fixed on both sides of the top of the pressing plate 4, and an extrusion plate 13 is slidably installed on the outside of the T-shaped square rod 12, and a spring is provided between the extrusion plate 13 and the T-shaped square rod 12, and the U-shaped through-hole frame 6 is provided with an opening for accommodating the hinge rod 15, and the sliding column 14 is located on the movement trajectory of the extrusion plate 13, and the bottom of the extrusion plate 13 is ten centimeters beyond the pressing plate 4. Through the arrangement of the above structure, the assembly device adopts the U-shaped through-hole frame 6 and the loading box 5 to drive the rear shell and the outer frame of the display screen to be aligned and installed up and down, thereby avoiding the problem of gaps or uneven appearance during the assembly of the display screen; at the same time, through the arrangement of the above structure, when the extrusion plate 13 drives the pressing plate 4 to move downward and applies pressure to the rear shell and the outer frame of the display screen, it can play a certain buffering role, thereby avoiding the problem of damage or deformation of the rear shell or the outer frame of the display screen due to excessive pressure. The device adopts a purely mechanical principle to center the display shell and the display screen. However, the device does not take into account the thickness of the glue and only takes into account the plane gap after the display screen and the display shell are assembled. It does not take into account the height of the display screen after assembly. The present device can solve the problem of controlling the surface height of the display screen and the display shell after assembly and the bulge of the display screen. At the same time, the gap can be detected by using a visual system after assembly. Summary of the invention

[0004] The purpose of the present invention is to use an alignment rotary motor, a rotating shaft and a display shell alignment clamping device to achieve precise rotation and positioning of the display shell, ensure accurate docking between the display shell and the display screen, avoid asymmetric assembly between the display screen and the display shell, and ensure high precision and stability of the assembly process. The uneven amount of glue output during the dispensing process may cause the surface of the display screen to protrude. By flipping the clamping claws for pressing, the seam between the display screen and the display shell can be pressed flush before the hot melt adhesive solidifies, thereby preventing the problem of the display screen protruding outward.

[0005] The present invention achieves the above-mentioned object through the following technical solutions: an automatic display screen assembly device, comprising a fixed support structure, a display shell assembly mechanism is fixedly connected to the inner side of the bottom of the fixed support structure, a display screen assembly mechanism is arranged on the upper end of the display shell assembly mechanism, a CCD visual grasping device is arranged on one side of the display screen assembly mechanism, and a glue dispensing device is arranged on the upper end of the display screen assembly mechanism; The fixed support structure comprises a support frame, a first longitudinal screw motor moving device is fixedly connected to one side of the upper end of the support frame, and a display shell assembly loading port is arranged on one side of the upper end of the support frame.

[0006] Further, the display shell assembly mechanism includes a horizontal back plate, a first horizontal screw motor moving device is fixedly connected to one side of the upper end of the horizontal back plate, horizontal slide rail slider moving devices are arranged on both sides of the first horizontal screw motor moving device, the first horizontal screw motor moving device and the horizontal slide rail slider moving device are fixedly connected to a Z-direction back plate, the Z-direction back plate is fixedly connected to a Z-direction screw motor moving device, the Z-direction back plate is fixedly connected to a Z-direction screw motor moving device, the Z-direction back plate is fixedly connected to a Z-direction slide rail slider moving device on both sides of the Z-direction back plate, and the Z-direction screw motor moving device and the upper side of the Z-direction slide rail slider moving device are fixedly connected to a display shell clip The display shell holding device and the display shell assembly mechanism significantly improve the assembly accuracy and production efficiency of the display shell through the precise moving and clamping system. The precise control and stable support of the system can not only reduce errors, but also improve the reliability of the assembly process, reduce human intervention and reduce production costs. It has a good degree of automation and adaptability, so that the equipment can efficiently and stably complete the task when assembling display screens of different models and requirements. The entire display shell clamping device can be moved laterally through the cooperation of the lateral slide rail slider moving device and the Z-axis screw motor moving device, and moved to the display shell assembly loading port for loading.

[0007] Furthermore, the display shell clamping device includes a fixing plate, the fixing plate, the upper end of the first fixing seat is provided with a positioning rotation motor, the upper end of the positioning rotation motor is provided with a second fixing seat, the upper end of the second fixing seat is provided with a support member, the output end of the positioning rotation motor is provided with a rotating shaft, and the rotating shaft is fixedly connected with the display shell positioning clamping device. The positioning rotation motor functions to drive the display shell to perform precise rotation adjustment during the clamping process. It can rotate the display shell to the correct positioning angle so that the display shell can be accurately docked to the assembly position. The precise control of the motor can help fine-tune to ensure that the positioning of the display shell during the assembly process is completely accurate. The display shell positioning clamping device is the core part of the clamping system, which is responsible for directly clamping the display shell and accurately positioning it. Through the cooperation of the positioning rotation motor and the rotating shaft, the precise docking of the display shell in the vertical and horizontal directions can be ensured. The output end of the clamping device adopts a flexible clamp to adapt to display shells of different sizes and shapes while protecting the appearance of the product.

[0008] Further, the display shell alignment clamping device includes a display shell bearing plate, a plurality of first suction cups are arranged on the display shell bearing plate, a plurality of cylinder clamping members are arranged on the bottom adjacent edge of the display shell bearing plate, a plurality of display screen pressure maintaining devices are arranged on the cylinder clamping members and the display shell bearing plate, a display shell is arranged on the display shell bearing plate, and a plurality of heating rods are inserted into the display shell bearing plate; The display screen pressure-maintaining device includes a flip motor, and a flip clamping claw is provided at the output end of the flip motor. The output end of the flip clamping claw is made of soft material. The flip clamping claw is used for clamping the display screen after assembly. The clamping claw is clamped at the joint between the display screen and the display shell to ensure that the display screen and the display shell are flush. After the product is glued and accurately assembled, the heating rod will heat the heating shell to solidify the hot melt glue. However, during assembly, a glue thickness of 0.1-1mm is usually reserved between the display screen and the display shell. When the glue output is uniform, the glue output is usually set at the upper limit tolerance of the glue. In this case, when the display screen and the display shell are assembled, the surface of the display screen may protrude from the surface of the display shell. In this case, it is necessary to press the four sides of the display screen, and use a flip clamping claw to press the joint between the display screen and the display shell to make them flush. After heating for a period of time to solidify, after the hot melt adhesive cools and shrinks, the display screen can be lower than the height of the display shell, thereby protecting the edge of the display screen from damage due to impact.

[0009] Furthermore, the display screen assembly mechanism includes two first columns, a motor rotating mechanism is arranged on one side of the upper end of the first columns, a pressing device is connected to the output end of the motor rotating mechanism, a display screen adsorption device is arranged on the upper end of the pressing device, a display screen is adsorbed on the display screen adsorption device, an outer circle of the display screen adsorption device is smaller than an outer circle of the display screen, which is used for the avoidance effect of the display screen pressure holding device. This design ensures that the display screen adsorption device can effectively avoid direct contact with the edge of the display screen. By designing the outer circle of the adsorption device to be slightly smaller than the outer circle of the display screen, the adsorption device only adsorbs the central area of ​​the display screen. This design can avoid the edge of the display screen from being subjected to excessive pressure or adsorption force, thereby avoiding damage or deformation of the display screen, and at the same time gives the flip clamping claw on the display screen pressure holding device a certain position for pressing.

[0010] Furthermore, the pressing device includes a motor fixed back plate, first slide rails are provided on both sides of the motor fixed back plate, a first slider is provided on the upper end of the second slide rail, a U-shaped pressing base is fixedly connected to the first slider, a screw motor lifting device is provided at the lower end of the U-shaped pressing base, the screw motor lifting device is fixedly connected to the motor fixed back plate, and the first slider is assembled and connected to the first slide rail. Through precise cooperation between the slide rail and the slider, uniform pressure of the U-shaped pressing base and precise control of the screw motor lifting device, it can ensure that the display screen or other components are evenly and stably pressed down and precisely aligned during the assembly process. This not only improves the assembly accuracy and reduces the risk of component damage, but also greatly enhances the stability and durability of the system.

[0011] Furthermore, the display screen adsorption device includes an adsorption panel, CCD capture avoidance ports are provided at two corners on one side of the adsorption panel, a plurality of second suction cups are provided on the adsorption panel, a plurality of buffer devices are provided at the bottom of the adsorption panel, and the buffer devices are fixedly connected to the U-shaped downward pressing base. The display screen adsorption device ensures the stability, precise positioning and protection of the display screen during the entire assembly process through the coordinated work of multiple key design elements. The CCD capture avoidance port provides real-time monitoring and positioning functions to ensure the accurate position of the display screen; the second suction cup ensures uniform adsorption force to avoid the deviation of the display screen; the buffer device protects the display screen from damage by absorbing impact force. At the same time, the fixed connection between the buffer device and the U-shaped downward pressing base enhances the stability and precision during the downward pressing process to avoid excessive pressure on the display screen when pressed down.

[0012] Furthermore, the CCD vision grabbing device includes two second columns, a second horizontal screw motor moving device is arranged at the upper end of the second column, a CCD vision camera is arranged on the second horizontal screw motor moving device, an illumination light source is arranged at the lower end of the CCD vision camera, and a backlight is arranged at the lower end of the second horizontal screw motor moving device. The display screen assembly mechanism grabs the display screen from the assembly line through the movement of the first longitudinal screw motor moving device, and flips the display screen upward, and captures the L-shaped side of the display screen through the CCD vision grabbing device to calculate the corresponding position and give a signal, and glues a circle on the outer side of the upper surface of the display screen through the three-axis operation on the glue dispensing device 5. After the glue dispensing is completed, the display The screen assembly mechanism avoids the position, and the CCD vision capture device captures the L-shaped side of the outer side of the display shell. The display screen and the display shell are assembled accordingly through data calculation. The CCD vision capture device can not only calculate the display screen, but also calculate the dispensing, realizing the work of one machine for two purposes, saving more costs and improving work efficiency. At the same time, the lighting source and the backlight work together to provide good lighting conditions. The lighting source provides direct lighting to ensure that the CCD camera can clearly see the surface of the object; and the backlight provides a reflected light source to help the CCD camera better identify the outline and shape of the object, especially for transparent or smooth objects, which can significantly improve the visual recognition effect.

[0013] Furthermore, the dispensing device includes a dispensing device fixing frame, a second longitudinal screw motor moving device is fixedly connected to the upper end of one side of the dispensing device fixing frame, a second slide rail is arranged on the other side of the upper end of the dispensing device fixing frame, a second slider is arranged on the upper end of the second slide rail, a crossbeam is fixedly connected to the second slider and the output end of the second longitudinal screw motor moving device, a third transverse screw motor moving device is fixedly connected to one end of the crossbeam, a second Z-direction screw motor moving device is fixedly connected to the third transverse screw motor moving device, and a second Z-direction screw motor moving device is fixedly connected to one side end of the second Z-direction screw motor moving device. The dispensing device ensures high precision and efficiency of the dispensing operation through a precise multi-axis control system combined with longitudinal, transverse and Z-direction screw motor moving devices. Through the smooth guidance provided by the slide rail and slider system, the device can quickly and accurately locate the target, thereby realizing automated and efficient dispensing operation.

[0014] Furthermore, an L-shaped limit block is arranged at the upper end of the display shell bearing plate, which is used for clamping and limiting the cylinder clamping member, and hand positions are arranged on both sides of the display shell bearing plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The display shell assembly mechanism adopts precise lateral and Z-axis screw motors and slide rail slider systems, which improve the assembly accuracy and production efficiency of the display shell through precise control. The equipment can provide efficient and stable automatic assembly in the assembly of display screens of different models and requirements, reduce errors and improve production stability, reduce manual intervention, thereby greatly improving production efficiency and reducing costs; 2. The device introduces automated components, such as CCD visual grasping device, dispensing device and multi-axis control system, to automatically complete the assembly, dispensing and alignment of the display shell without human intervention. This fully automated process can effectively reduce human operation errors, improve production efficiency, reduce production line downtime, and thus improve overall production capacity; 3. The design of the display shell clamping device takes the protection of the display screen into consideration. A flexible clamp and a display shell alignment clamping device are used to avoid excessive pressure on the display screen, especially the edge of the display screen. The flip clamping claw is used for precise clamping to ensure that the joint between the display screen and the display shell remains flat, thus avoiding unnecessary damage to the display screen surface during the assembly process. In addition, the cylinder clamp and suction cup device in the device provide a stable clamping force to ensure that the display screen will not shift during the assembly process. At the same time, the display screen pressure-maintaining device can accurately press the joint after assembly to prevent the display screen surface from being deformed due to the cooling and shrinkage of the hot melt adhesive, thereby protecting the edge of the display screen from damage; 4. Precise dispensing control and glue thickness compensation. The dispensing device uses a multi-axis screw motor and a precision slide rail system. Through precise control in the longitudinal, lateral and Z directions, it ensures accurate and uniform dispensing. During the dispensing process, the system can compensate for the unevenness of the glue output, especially when a certain thickness of glue is left between the display screen and the display shell. The system can ensure that the glue is evenly coated on the outer ring of the display screen to avoid the adverse effects caused by excessive or insufficient glue. Through this design, it can be ensured that when the display screen and the display shell are joined, the thickness of the glue is moderate, ensuring a good bonding effect; 5. The display screen adsorption device is designed with several key details, such as the CCD capture avoidance port, the second suction cup and the buffer device, so that the display screen can be stably and accurately positioned and protected during the entire assembly process. In particular, the CCD visual capture device can monitor the position of the display screen in real time, and perform precise calculations and adjustments to ensure the perfect alignment of the display screen and the display shell. The outer ring of the adsorption device is designed to be slightly smaller than the display screen to avoid direct contact with the edge of the display screen, reduce the pressure on the display screen during the adsorption process, and reduce the risk of deformation or damage to the display screen. The buffer device further protects the display screen by absorbing possible impact forces, ensuring the stability and safety of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the present invention; Figure 2 It is a schematic diagram of the fixed support structure of the present invention; Figure 3 It is a schematic diagram of the display shell assembly mechanism of the present invention; Figure 4 It is a schematic diagram of the display shell clamping device of the present invention; Figure 5 It is a schematic diagram of the display housing alignment clamping device of the present invention; Figure 6 It is a schematic diagram of the pressure-maintaining device for a display screen of the present invention; Figure 7 It is a schematic diagram of the display screen assembly mechanism of the present invention; Figure 8 It is a schematic diagram of the pressing device of the present invention; Fig. 9 It is a schematic diagram of the display screen adsorption device of the present invention; Fig.10 It is a schematic diagram of the CCD vision capture device of the present invention; Fig.11 It is a schematic diagram of the glue dispensing device of the present invention; In the figure: 1-fixed support structure, 2-display shell assembly mechanism, 3-display screen assembly mechanism, 4-CCD visual grasping device, 5-glue dispensing device, 11-support frame, 12-first longitudinal screw motor moving device, 13-display shell assembly loading port, 21-transverse back plate, 22-first transverse screw motor moving device, 23-transverse slide slider moving device, 24-Z-back plate, 25-first Z-direction screw motor moving device, 26-Z-direction slide slider moving device, 27-display shell clamping device, 271-fixed plate, 272-first fixed seat, 273-aligned rotating motor, 274-second fixed seat, 275-support member, 276-rotating shaft, 277-display shell alignment clamping device, 2771-display shell bearing plate, 2772-first suction cup, 2773-cylinder clamping piece, 2774-display screen pressure-maintaining device, 2775-display shell, 2776-heating rod, 27741-flip motor, 27742-flip clamping claw, 35-display screen, 31-first column, 32-motor rotation mechanism, 33-pressing device, 34-display screen adsorption device, 341-adsorption panel, 342-CCD capture avoidance port, 343-second suction cup, 344-buffer device, 45-backlight, 51-glue dispensing device fixing frame, 52-second longitudinal screw motor moving device, 53-second slide rail, 54-second slider, 55-crossbeam, 56-third transverse screw motor moving device, 57-second Z-direction screw motor moving device, 58-glue dispensing machine. DETAILED DESCRIPTION

[0017] 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.

[0018] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] Combination Figure 1 As shown, an automatic display screen assembly device comprises a fixed support structure 1, a display shell assembly mechanism 2 is fixedly connected to the inner side of the bottom of the fixed support structure 1, a display screen assembly mechanism 3 is arranged on the upper end of the display shell assembly mechanism 2, a CCD visual grasping device 4 is arranged on one side of the display screen assembly mechanism 3, and a glue dispensing device 5 is arranged on the upper end of the display screen assembly mechanism 3; The fixed support structure 1 includes a support frame 11, a first longitudinal screw motor moving device 12 is fixedly connected to one side of the upper end of the support frame 11, and a display shell assembly loading port 13 is provided on one side of the upper end of the support frame 11; Combination Figure 2-Figure 11As shown, the display shell assembly mechanism 2 includes a horizontal back plate 21, a first horizontal screw motor moving device 22 is fixedly connected to one side of the upper end of the horizontal back plate 21, and horizontal slide slider moving devices 23 are arranged on both sides of the first horizontal screw motor moving device 22. A Z-direction back plate 24 is fixedly connected to the first horizontal screw motor moving device 22 and the horizontal slide slider moving device 23, and a first Z-direction screw motor moving device 25 is fixedly connected to the Z-direction back plate 24. Z-direction slide slider moving devices 26 are arranged on both sides of the Z-direction back plate 24, and a display shell clamping device 27 is fixedly connected to one side of the first Z-direction screw motor moving device 25 and the Z-direction slide slider moving device 26. The display shell assembly mechanism is realized by a precise moving and clamping system such as a horizontal screw motor moving device 22. The rod motor, Z-axis screw motor, slide rail slider device, etc., significantly improve the assembly accuracy and production efficiency of the display shell. The precise control and stable support of the system can not only reduce errors, but also improve the reliability of the assembly process, reduce human intervention and reduce production costs. It has a good degree of automation and adaptability, so that the equipment can efficiently and stably complete the task when assembling display screens of different models and requirements. The entire display shell clamping device can be moved laterally through the cooperation of the lateral slide rail slider moving device and the Z-axis screw motor moving device, and moved to the display shell assembly loading port for loading; the display shell clamping device 27 includes a fixed plate 271, and a first fixed seat 272 is arranged on one side of the fixed plate 271, and the first fixed seat 2 A positioning rotary motor 273 is arranged at the upper end of 72, a second fixed seat 274 is arranged at the upper end of the positioning rotary motor 273, a support member 275 is arranged at the upper end of the second fixed seat 274, a rotating shaft 276 is arranged at the output end of the positioning rotary motor 273, and a display shell positioning clamping device 277 is fixedly connected to the rotating shaft 276. The function of the positioning rotary motor is to drive the display shell to perform precise rotation adjustment during the clamping process. It can rotate the display shell to the correct positioning angle so that the display shell can be accurately docked to the assembly position. The precise control of the motor can help to make fine adjustments to ensure that the positioning of the display shell during the assembly process is completely accurate. The display shell positioning clamping device is the core part of the clamping system, which is responsible for directly clamping the display shell and accurately positioning it. Through the cooperation of the aligning rotating motor and the rotating shaft, the accurate docking of the display shell in the vertical and horizontal directions can be ensured. The output end of the clamping device adopts a flexible clamp to adapt to display shells of different sizes and shapes, while protecting the appearance of the product; the display shell aligning clamping device 277 includes a display shell bearing plate 2771, a plurality of first suction cups 2772 are arranged on the display shell bearing plate 2771, a plurality of cylinder clamping members 2773 are arranged on the adjacent edge of the bottom of the display shell bearing plate 2771, a plurality of display screen pressure maintaining devices 2774 are arranged on the cylinder clamping member 2773 and the display shell bearing plate 2771, a display shell 2775 is arranged on the display shell bearing plate 2771, and a plurality of heating rods 2776 are inserted into the display shell bearing plate 2771; The display screen pressure-maintaining device 2774 includes a flip motor 27741. A flip clamping claw 27742 is provided at the output end of the flip motor 27741. The output end of the clamping claw 27742 is made of soft material. The flip clamping claw 27742 is used for clamping the display screen after assembly. The clamping claw is clamped at the joint between the display screen and the display shell to ensure that the display screen and the display shell are flush. After the product is glued and accurately assembled, the heating rod heats the heating shell to solidify the hot melt glue. However, during assembly, a glue thickness of 0.1-1mm is usually reserved between the display screen and the display shell. The amount of glue discharged during glue dispensing cannot be uniform, and the glue discharge is usually set at the upper limit of the glue. Tolerance, in this case, when the display screen and the display shell are assembled, the surface of the display screen may protrude from the surface of the display shell, so it is necessary to press the four sides of the display screen, and use a flip clamping claw to press the joint of the display screen and the display shell to make them flush, and heat it for a period of time to solidify it, so that after the hot melt adhesive cools and shrinks, the display screen can be lower than the height of the display shell, thus protecting the edge of the display screen from damage due to impact; the display screen assembly mechanism 3 includes two first columns 31, a motor rotating mechanism 32 is provided on one side of the upper end of the first column 31, the output end of the motor rotating mechanism 32 is connected to a pressing device 33, and the upper end of the pressing device 33 is provided with a display screen adsorption device 34, a display screen 35 is adsorbed on the display screen adsorption device 34, and the outer circle of the display screen adsorption device 34 is smaller than the outer circle of the display screen 35, which is used for the avoidance of the display screen pressure-maintaining device 2774. This design ensures that the display screen adsorption device can effectively avoid direct contact with the edge of the display screen. By designing the outer circle of the adsorption device to be slightly smaller than the outer circle of the display screen, the adsorption device only adsorbs the central area of ​​the display screen. This design can avoid excessive pressure or adsorption force on the edge of the display screen, thereby avoiding damage or deformation of the display screen, and at the same time, a certain position of the flip clamping claw on the display screen pressure-maintaining device is given for pressing; the pressing device 33 includes a motor fixing back plate 331, and both sides of the motor fixing back plate 331 are provided with A first slide rail 332, a first slider 333 is disposed at the upper end of the first slide rail 332, a U-shaped downward pressing base 334 is fixedly connected to the first slider 333, a screw motor lifting device 335 is disposed at the lower end of the U-shaped downward pressing base 334, the screw motor lifting device 335 is fixedly connected to the motor fixed back plate 331, and the first slider 333 is assembled and connected with the first slide rail 332. Through the precise cooperation between the slide rail and the slider, the uniform pressure of the U-shaped downward pressing base and the precise control of the screw motor lifting device, it can be ensured that the display screen or other components are uniformly and stably pressed down and accurately aligned during the assembly process, which not only improves the assembly accuracy and reduces the risk of component damage, but also greatly enhances the stability and durability of the system;The display screen adsorption device 34 includes an adsorption panel 341, and CCD snap avoidance openings 342 are arranged at two corners on one side of the adsorption panel 341. A plurality of second suction cups 343 are arranged on the adsorption panel 341. A plurality of buffer devices 344 are arranged at the bottom of the adsorption panel 341. The buffer devices 344 are fixedly connected to the U-shaped downward pressing base 334. The display screen adsorption device ensures the stability, precise positioning and protection of the display screen during the entire assembly process through the coordinated work of multiple key design elements. The CCD snap avoidance opening provides real-time monitoring and positioning functions to ensure the accurate position of the display screen. The second suction cups 343 are arranged on the adsorption panel 341. A plurality of buffer devices 344 are arranged at the bottom of the adsorption panel 341. The buffer devices 344 are fixedly connected to the U-shaped downward pressing base 334. The display screen adsorption device ensures the stability, precise positioning and protection of the display screen during the entire assembly process through the coordinated work of multiple key design elements. The CCD snap avoidance opening provides real-time monitoring and positioning functions to ensure the accurate position of the display screen. The plate ensures uniform adsorption force and avoids the deviation of the display screen; the buffer device protects the display screen from damage by absorbing the impact force. At the same time, the fixed connection between the buffer device and the U-shaped pressing base enhances the stability and accuracy of the pressing process and avoids excessive pressure on the display screen during pressing; the CCD visual grasping device 4 includes two second columns 41, the upper end of the second column 41 is provided with a second horizontal screw motor moving device 42, the second horizontal screw motor moving device 42 is provided with a CCD visual camera 43, the lower end of the CCD visual camera 43 is provided with an illumination light source 44, and the second horizontal A backlight 45 is arranged at the lower end of the screw motor moving device 42. The display assembly mechanism grabs the display from the assembly line by moving the first longitudinal screw motor moving device, and flips the display upward. The CCD visual grabbing device captures the L-shaped side of the display to calculate the corresponding position and give a signal. The three-axis operation on the glue dispensing device 5 is used to dispense glue on the outer circle of the upper surface of the display. After the glue dispensing is completed, the display assembly mechanism avoids the position, and the CCD visual grabbing device captures the L-shaped side of the outer side of the display shell. The display and the display shell are connected by data calculation. Carry out corresponding alignment assembly. The CCD visual capture device can not only calculate the display screen, but also calculate the dispensing, realizing dual-purpose work of one machine, saving more costs and improving work efficiency. At the same time, the lighting source and the backlight work together to provide good lighting conditions. The lighting source provides direct lighting to ensure that the CCD camera can clearly see the surface of the object; and the backlight provides a reflected light source to help the CCD camera better identify the outline and shape of the object, especially for transparent or smooth objects, which can significantly improve the effect of visual recognition.The glue dispensing device 5 includes a glue dispensing device fixing frame 51, a second longitudinal screw motor moving device 52 is fixedly connected to the upper end of one side of the glue dispensing device fixing frame 51, a second slide rail 53 is arranged on the other side of the upper end of the glue dispensing device fixing frame 51, a second slider 54 is arranged on the upper end of the second slide rail 53, a crossbeam 55 is fixedly connected to the output end of the second slider 54 and the second longitudinal screw motor moving device 52, a third transverse screw motor moving device 56 is fixedly connected to one end of the crossbeam 55, and a second Z-axis screw motor moving device is fixedly connected to the third transverse screw motor moving device 56. The second Z-axis screw motor moving device 57 is fixedly connected to the dispensing machine 58 at one end. The dispensing device uses a precise multi-axis control system, combined with the longitudinal, transverse and Z-axis screw motor moving devices, to ensure the high precision and efficiency of the dispensing operation. Through the smooth guidance provided by the slide rail and slider system, the device can quickly and accurately locate the target, realizing automated and efficient dispensing operations; the upper end of the display shell bearing plate 2771 is provided with an L-shaped limit block for clamping and limiting the cylinder clamping piece, and both sides of the display shell bearing plate 2771 are provided with hand positions. ;

[0020] During operation, the transverse back plate 21 and the Z-direction back plate 24 in the display shell assembly mechanism 2 accurately guide and clamp the display shell from the display shell assembly loading port 13 to a suitable assembly position through a precise screw motor and a slide rail slider device. Through the cooperation of the first transverse screw motor moving device 22 and the first Z-direction screw motor moving device 25, the display shell clamping device 27 accurately clamps and moves the display shell to the corresponding assembly position, waiting for alignment installation. The alignment rotating motor 273 and the rotating shaft 276 enable the display shell to be accurately rotated and adjusted as needed to ensure that it can be correctly docked to the subsequent assembly position. The display screen assembly mechanism 3 aligns the display shell through the display screen adsorption device 34. The screen is adsorbed, and the second suction cup 343 of the adsorption panel 341 provides a uniform adsorption force to ensure that the display screen will not shift during the assembly process. The display screen assembly mechanism 3 grabs the display screen on the assembly line by longitudinal movement and moves to the lower end of the visual grabbing device. The visual system calculates its exact position by photographing the L-shaped side of the display screen, providing accurate data support for dispensing and alignment. The dispensing machine 58 performs precise dispensing on the outer ring of the display screen, which is usually preset with a certain glue thickness. Due to the corresponding error in the uniformity of the output of the glue, a small bulge may occur between the display screen and the display shell. Therefore, in the subsequent pressing link, the display screen will be flattened. After the dispensing is completed, the display screen assembly mechanism 3 moves back to avoid the position, and the CCD visual capture device 4 scans the L-shaped edge of the display shell below to capture the corresponding data. After the data is captured, the display screen assembly mechanism 3 flips the display screen and moves it synchronously to the top of the display shell. The CCD scans the L-shaped outer frame of the display screen and captures the corresponding data. The visual data is used for accurate calculation to ensure that the display screen and the display shell can be docked very accurately. After the display screen and the display shell are docked, the pressing device 33 provides uniform downward pressure through the slide rail system to ensure that the two are docked stably. After the pressing is completed, the display screen pressure holding device 2774 is turned over by the flip motor 27741 The flip clamping claw 27742 is used to press the joint between the display screen and the display shell to ensure that the joint between the display screen and the display shell remains flush. The heating rod 2776 heats the display shell to quickly solidify the hot melt adhesive between the display screen and the display shell. After the solidification process is completed, the four sides of the display screen are pressed to a flush state, and the heated and solidified glue cools and shrinks, so that the display screen is slightly lower than the surface of the display shell after assembly, thereby avoiding collision damage to the edge of the display screen. After all assembly is completed, the CCD visual camera 43 can take photos and measure the assembled display by moving horizontally to check whether the assembled display is qualified or has problems such as excessive gaps.

[0021] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0022] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A display screen automatic assembly device, comprising a fixed support structure (1), characterized in that: A display shell assembly mechanism (2) is fixedly connected to the inner side of the bottom of the fixed support structure (1); a display screen assembly mechanism (3) is arranged on the upper end of the display shell assembly mechanism (2); a CCD visual grasping device (4) is arranged on the upper side of the display screen assembly mechanism (3); and a glue dispensing device (5) is arranged on the upper end of the display screen assembly mechanism (3); The fixed support structure (1) comprises a support frame (11), a first longitudinal screw motor moving device (12) is fixedly connected to one side of the upper end of the support frame (11), and a display shell assembly loading port (13) is provided on one side of the upper end of the support frame (11).

2. The automatic display screen assembly device according to claim 1, characterized in that: The display shell assembly mechanism (2) comprises a transverse back plate (21); a first transverse screw motor moving device (22) is fixedly connected to one side of the upper end of the transverse back plate (21); transverse slide rail slider moving devices (23) are arranged on both sides of the first transverse screw motor moving device (22); a Z-direction back plate (24) is fixedly connected to the first transverse screw motor moving device (22) and the transverse slide rail slider moving device (23); a first Z-direction screw motor moving device (25) is fixedly connected to the Z-direction back plate (24); Z-direction slide rail slider moving devices (26) are arranged on both sides of the Z-direction back plate (24); and a display shell clamping device (27) is fixedly connected to one side of the first Z-direction screw motor moving device (25) and the Z-direction slide rail slider moving device (26).

3. The automatic display screen assembly device according to claim 2, characterized in that: The display shell clamping device (27) comprises a fixing plate (271), a first fixing seat (272) being provided on one side of the fixing plate (271), an aligning rotary motor (273) being provided at the upper end of the first fixing seat (272), a second fixing seat (274) being provided at the upper end of the aligning rotary motor (273), a supporting member (275) being provided at the upper end of the second fixing seat (274), a rotating shaft (276) being provided at the output end of the aligning rotary motor (273), and a display shell aligning clamping device (277) being fixedly connected to the rotating shaft (276).

4. The automatic display screen assembly device according to claim 3, characterized in that: The display shell alignment clamping device (277) comprises a display shell bearing plate (2771), a plurality of first suction cups (2772) are arranged on the display shell bearing plate (2771), a plurality of cylinder clamping members (2773) are arranged on the bottom adjacent edge of the display shell bearing plate (2771), a plurality of display screen pressure-maintaining devices (2774) are arranged on the cylinder clamping members (2773) and the display shell bearing plate (2771), a display shell (2775) is arranged on the display shell bearing plate (2771), and a plurality of heating rods (2776) are inserted and arranged inside the display shell bearing plate (2771); The display screen pressure-maintaining device (2774) comprises a flip motor (27741), the output end of the flip motor (27741) is provided with a flip clamping claw (27742), the output end of the flip clamping claw (27742) is made of soft material, the flip clamping claw (27742) is used for clamping the display screen after assembly, and the clamping claw is clamped at the joint between the display screen and the display shell to ensure that the display screen and the display shell are flush.

5. The automatic display screen assembly device according to claim 4, characterized in that: The display screen assembly mechanism (3) comprises two first columns (31), a motor rotating mechanism (32) is arranged on one side of the upper end of the first column (31), the output end of the motor rotating mechanism (32) is connected to a pressing device (33), the upper end of the pressing device (33) is provided with a display screen adsorption device (34), a display screen (35) is adsorbed on the display screen adsorption device (34), the outer circle of the display screen adsorption device (34) is smaller than the outer circle of the display screen (35), and is used for the avoidance effect of the display screen pressure maintaining device (2774).

6. The automatic display screen assembly device according to claim 5, characterized in that: The pressing device (33) comprises a motor fixing back plate (331), first slide rails (332) are arranged on both sides of the motor fixing back plate (331), a first slider (333) is arranged at the upper end of the first slide rail (332), a U-shaped pressing base (334) is fixedly connected to the first slider (333), a screw motor lifting device (335) is arranged at the lower end of the U-shaped pressing base (334), the screw motor lifting device (335) is fixedly connected to the motor fixing back plate (331), and the first slider (333) is assembled and connected to the first slide rail (332).

7. The automatic display screen assembly device according to claim 6, characterized in that: The display screen adsorption device (34) comprises an adsorption panel (341), CCD snapping avoidance openings (342) are arranged at two corners on one side of the adsorption panel (341), a plurality of second suction cups (343) are arranged on the adsorption panel (341), and a plurality of buffer devices (344) are arranged at the bottom of the adsorption panel (341), and the buffer devices (344) are fixedly connected to the U-shaped downward pressing base (334).

8. The automatic display screen assembly device according to claim 7, characterized in that: The CCD visual grasping device (4) comprises two second upright posts (41), a second transverse screw motor moving device (42) being arranged at the upper end of the second upright post (41), a CCD visual camera (43) being arranged on the second transverse screw motor moving device (42), an illumination light source (44) being arranged at the lower end of the CCD visual camera (43), and a backlight (45) being arranged directly at the lower end of the second transverse screw motor moving device (42).

9. The automatic display screen assembly device according to claim 8, characterized in that: The dispensing device (5) comprises a dispensing device fixing frame (51), a second longitudinal screw motor moving device (52) is fixedly connected to the upper end of one side of the dispensing device fixing frame (51), a second slide rail (53) is arranged on the other side of the upper end of the dispensing device fixing frame (51), a second slider (54) is arranged on the upper end of the second slide rail (53), a crossbeam (55) is fixedly connected to the output end of the second slider (54) and the second longitudinal screw motor moving device (52), a third transverse screw motor moving device (56) is fixedly connected to one end of the crossbeam (55), a second Z-direction screw motor moving device (57) is fixedly connected to the third transverse screw motor moving device (56), and a second Z-direction screw motor moving device (57) is fixedly connected to a dispensing machine (58) at one side end.

10. The automatic display screen assembly device according to claim 9, characterized in that: An L-shaped limit block is provided at the upper end of the display shell bearing plate (2771) for clamping and limiting the cylinder clamping member, and hand positions are provided on both sides of the display shell bearing plate (2771).

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