Assembly device for liquid crystal display screen

Abstract

The utility model relates to the technical field, and discloses an assembling device for a liquid crystal display screen, which comprises a roller conveying belt, a welding rack is arranged above the roller conveying belt, four positioning mechanisms are symmetrically arranged on the inner side of the welding rack, a temporary storage table is arranged above the roller conveying belt and positioned on one side of the welding rack, and a positioning mechanism is arranged on the temporary storage table. According to the automatic feeding device, the transverse linear module is matched with the vertical linear module to drive the vertical plate and the grabbing mechanism to use, the automatic feeding function can be achieved, and under the cooperation of the mechanical arm and the grabbing mechanism, the mechanical arm can automatically feed the materials, so that the labor intensity of workers is reduced, and the production efficiency is improved. According to the automatic assembling process, a displayer and a frame can be grabbed and combined, the four sides of the displayer can be pressed and positioned through the four positioning mechanisms arranged on the welding rack, the assembling precision is ensured, conveying can be conducted through the roller conveying belt after assembling, and the automatic assembling process of feeding, splicing and discharging is achieved; and the assembly efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen assembly, and particularly relates to an assembly device for a liquid crystal display screen. Background Technique

[0002] Due to its long service life, energy saving and environmental protection characteristics, LED display screens are widely used in various public places to provide image display services for people. At present, in the production and assembly of display screens, flexible assembly equipment is generally used to realize the assembly of the display screen and the backplane frame. The flexible positioning mechanisms in the existing flexible assembly equipment all realize the state switching between rigid fixing and flexible shaking clamping of the flexible assembly equipment by the suction or separation of the positioning parts and the positioning columns, and then the flexible assembly equipment assists the assemblers to clamp and assemble the display screen and the backplane frame. However, manual auxiliary clamping not only has low efficiency, but also there is a misalignment situation during clamping, which affects the assembly accuracy.

[0003] After retrieval, the patent with the publication number of CN109202409A discloses a display screen assembly device. Among them, the display screen assembly device includes a frame, a suction device and a suspension assembly. The suspension assembly is connected between the suction device and the frame. A positioning part is provided on the suction device, and an assembly groove is provided on the positioning part. A lifting driving part is provided on the frame, and a connecting part for connecting with the assembly groove is provided on the lifting driving part; the lifting driving part drives the connecting part to lift in the assembly groove so that the connecting part is installed at different height positions in the assembly groove. This invention can adjust the flexible shaking degree of the display screen assembly device and improve the versatility and production efficiency of the display screen assembly device.

[0004] However, its function is single. There is no positioning mechanism during assembly, which cannot guarantee the assembly accuracy. At the same time, it does not have the function of automatic loading and unloading, which affects the assembly efficiency. Therefore, this application proposes an assembly device for a liquid crystal display screen. Content of the Utility Model

[0005] The purpose of the utility model is to provide an assembly device for a liquid crystal display screen to solve the above problems. By driving the vertical plate and the grasping mechanism with the horizontal linear module and the vertical linear module, the function of automatic feeding can be realized. With the cooperation of the robotic arm and the grasping mechanism, the display and the frame can be grasped and combined. By setting four positioning mechanisms on the welding frame, the four sides of the display can be pressed and positioned to ensure the assembly accuracy, and the problems mentioned in the background technique are solved.

[0006] To solve the above problems, the utility model provides a technical solution:

[0007] An assembly device for a liquid crystal display screen, comprising a roller conveyor belt, above which a welding frame is arranged. Inside the welding frame, four positioning mechanisms are symmetrically arranged. Above the roller conveyor belt and on one side of the welding frame, a buffer table is arranged. On the side of the roller conveyor belt away from the buffer table, a loading rack is arranged. One side of the loading rack is fixedly connected to an orbital frame, on which two horizontal linear modules are arranged. On one side of each horizontal linear module, a connecting plate is fixedly connected. On the side of the connecting plate away from the horizontal linear module, a vertical linear module is arranged. On the side of the vertical linear module away from the connecting plate, a vertical plate is fixedly connected. On one side of the roller conveyor belt, a base is arranged, and a robotic arm is installed above the base. Gripping mechanisms are arranged at the front ends of both the robotic arm and the vertical plate.

[0008] As a preferred solution of the present utility model, a jacking mechanism is arranged below the roller conveyor belt, and the telescopic end of the jacking mechanism extends above the roller conveyor belt.

[0009] As a preferred solution of the present utility model, the positioning mechanism comprises a mounting plate. The mounting plates are fixedly connected to the four surrounding sides inside the welding frame. Above the mounting plate, a cylinder is fixedly connected. The telescopic end of the cylinder is fixedly connected to a positioning plate. At the top of the mounting plate, two fixing blocks are symmetrically and fixedly connected. Inside each fixing block, an auxiliary sliding rod is slidably connected, and one end of the auxiliary sliding rod is fixedly connected to the positioning plate.

[0010] As a preferred solution of the present utility model, two CCD vision locators are fixedly connected above the buffer table, and the two CCD vision locators are located on both sides of the buffer table.

[0011] As a preferred solution of the present utility model, the gripping mechanism comprises a frame. At the bottom of the frame, a plurality of spacer plates are fixedly connected. Inside each spacer plate, a plurality of vacuum suction cups are equidistantly and fixedly connected.

[0012] The beneficial effects of the present utility model are as follows: By driving the vertical plate and the gripping mechanism through the cooperation of the horizontal linear module and the vertical linear module, the function of automatic feeding can be realized. With the cooperation of the robotic arm and the gripping mechanism, the display and the frame can be grabbed and combined. Through the four positioning mechanisms arranged on the welding frame, the four sides of the display can be pressed and positioned to ensure the assembly accuracy. After assembly, it can also be conveyed through the roller conveyor belt to realize the automatic assembly process of feeding, assembling, and discharging, thereby improving the assembly efficiency. Description of the Drawings

[0013] For ease of explanation, the present utility model will be described in detail by the following specific embodiments and accompanying drawings.

[0014] Figure 1It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the installation of the roller conveyor belt and the lifting mechanism of the present utility model;

[0016] Figure 3 It is a schematic diagram of the grasping mechanism of the present utility model;

[0017] Figure 4 It is a schematic diagram of the positioning mechanism of the present utility model.

[0018] In the figure: 1. Roller conveyor belt; 2. Welding frame; 3. Lifting mechanism; 4. Positioning mechanism; 41. Installation plate; 42. Cylinder; 43. Positioning plate; 44. Fixed block; 45. Auxiliary slide bar; 5. Base; 6. Robot arm; 7. Buffer table; 8. CCD vision locator; 9. Loading rack; 10. Track rack; 11. Horizontal linear module; 12. Connecting plate; 13. Vertical linear module; 14. Vertical plate; 15. Grasping mechanism; 151. Frame; 152. Spacer; 153. Vacuum suction cup. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Embodiment

[0020] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: An assembly device for a liquid crystal display screen, including a roller conveyor belt 1, through which the assembled display can be conveniently conveyed to the next working area without manual handling. Above the roller conveyor belt 1, there is a welding frame 2. Inside the welding frame 2, four positioning mechanisms 4 are symmetrically arranged. Above the roller conveyor belt 1 and on one side of the welding frame 2, there is a buffer table 7, which can temporarily place the display frame for convenient subsequent rapid material taking. On the side of the roller conveyor belt 1 away from the buffer table 7, there is a loading rack 9. One side of the loading rack 9 is fixedly connected to a track rack 10. On the track rack 10, there are two horizontal linear modules 11. On one side of each horizontal linear module 11, there is a fixedly connected connecting plate 12. On the side of the connecting plate 12 away from the horizontal linear module 11, there is a vertical linear module 13. By cooperating the horizontal linear module 11 with the vertical linear module 13 to drive the vertical plate 14 and the grasping mechanism 15, the function of automatic loading can be realized. On the side of the vertical linear module 13 away from the connecting plate 12, there is a fixedly connected vertical plate 14. On one side of the roller conveyor belt 1, there is a base 5. Above the base 5, there is a robot arm 6. At the front ends of the robot arm 6 and the vertical plate 14, there are grasping mechanisms 15. With the cooperation of the robot arm 6 and the grasping mechanism 15, the display and the display frame can be grasped and combined, thereby improving the assembly efficiency.

[0021] Furthermore, a jacking mechanism 3 is provided below the roller conveyor belt 1. The telescopic end of the jacking mechanism 3 extends above the roller conveyor belt 1, which can facilitate the jacking during the assembly of the display and the retraction during transportation, thereby improving the flexibility of assembly. Moreover, it extends through the gaps of the roller conveyor belt 1, saving the installation space of the equipment.

[0022] Furthermore, the positioning mechanism 4 includes a mounting plate 41. The mounting plates 41 are fixedly connected to the inner sides of the four circumferences of the welding frame 2. A cylinder 42 is fixedly connected above the mounting plate 41. The telescopic end of the cylinder 42 is fixedly connected to a positioning plate 43. Two fixing blocks 44 are symmetrically and fixedly connected to the top of the mounting plate 41. An auxiliary sliding rod 45 is slidably connected inside each fixing block 44. One end of the auxiliary sliding rod 45 is fixedly connected to the positioning plate 43. By driving the positioning plate 43 to extend forward through the cylinder 42, the display screen and the display frame can be pressed, ensuring the assembly accuracy. The movement of the positioning plate 43 can be assisted by the cooperation of the fixing blocks 44 and the auxiliary sliding rods 45, improving the stability during movement.

[0023] Furthermore, two CCD vision locators 8 are fixedly connected above the buffer table 7, and the two CCD vision locators 8 are located on both sides of the buffer table 7. The two CCD vision locators 8 can detect the position of the display frame, ensuring the accuracy of the placement position.

[0024] Furthermore, the grasping mechanism 15 includes a frame 15. A plurality of spacer plates 152 are fixedly connected to the bottom of the frame 15. A plurality of vacuum suction cups 153 are equidistantly and fixedly connected inside each spacer plate 152. The display screen or the display frame can be stably adsorbed through the plurality of vacuum suction cups 153, thereby improving the stability of material grasping.

[0025] In summary: The two vertical linear modules 13 drive the two vertical plates 14 and the grasping mechanism 15 to move downward respectively, so as to grasp the display rack at the bottom thereof. The horizontal linear module 11 drives the connecting plate 12 to move horizontally on the track rack 10 until the vertical plate 14 close to one side of the buffer table 7 moves above the buffer table 7. Subsequently, the vertical linear module 13 drives the grasping mechanism 15 to move downward again, so as to place the display rack on the buffer table 7. The two CCD vision locators 8 on the buffer table 7 can detect the position of the display rack. At the same time, a group of vertical plates 14 on the side far from the buffer table 7 cooperate with the grasping mechanism 15 to transfer the material to the material area close to the buffer table 7. The robotic arm 6 cooperates with the grasping mechanism 15 to place the display rack on the buffer table 7 on the lifting mechanism 3, and grasps and places the display screen on the display rack. The four positioning mechanisms 4 on the welding rack 2 are started to align the display screen and the display rack, and then welding and assembly can be carried out. After the assembly is completed, the lifting mechanism 3 contracts to drive the display to move downward, and the display is placed on the roller conveyor belt 1. The roller conveyor belt 1 conveys the display to the next working position.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembly device for a liquid crystal display screen, comprising a roller conveyor belt (1), characterized in that, Above the drum conveyor belt (1), there is a welding frame (2). Inside the welding frame (2), four positioning mechanisms (4) are symmetrically arranged. Above the drum conveyor belt (1) and on one side of the welding frame (2), there is a buffer table (7). On the side of the drum conveyor belt (1) away from the buffer table (7), there is a loading rack (9). One side of the loading rack (9) is fixedly connected to a track rack (10). On the track rack (10), two horizontal linear modules (11) are arranged. On one side of each horizontal linear module (11), there is a connecting plate (12) fixedly connected. On the side of the connecting plate (12) away from the horizontal linear module (11), there is a vertical linear module (13). On the side of the vertical linear module (13) away from the connecting plate (12), there is a vertical plate (14) fixedly connected. On one side of the drum conveyor belt (1), there is a base (5). Above the base (5), a robotic arm (6) is installed. At the front ends of the robotic arm (6) and the vertical plate (14), there are grasping mechanisms (15).

2. The assembly device for a liquid crystal display screen according to claim 1, wherein, Below the drum conveyor belt (1), there is a lifting mechanism (3). The telescopic end of the lifting mechanism (3) extends above the drum conveyor belt (1).

3. The assembly device for a liquid crystal display screen according to claim 1, characterized in that, The positioning mechanism (4) includes a mounting plate (41). The mounting plate (41) is fixedly connected to the inner periphery of the welding frame (2). Above the mounting plate (41), there is a cylinder (42) fixedly connected. The telescopic end of the cylinder (42) is fixedly connected to a positioning plate (43). On the top of the mounting plate (41), two fixing blocks (44) are symmetrically and fixedly connected. Inside each fixing block (44), there is an auxiliary sliding rod (45) slidably connected. One end of the auxiliary sliding rod (45) is fixedly connected to the positioning plate (43).

4. The assembly device for a liquid crystal display screen according to claim 1, characterized in that, Above the buffer table (7), two CCD vision locators (8) are fixedly connected, and the two CCD vision locators (8) are located on both sides of the buffer table (7).

5. The assembly device for a liquid crystal display screen according to claim 1, characterized in that, The grasping mechanism (15) includes a frame (151). At the bottom of the frame (151), there are a plurality of spacer plates (152) fixedly connected. Inside each spacer plate (152), a plurality of vacuum suction cups (153) are equidistantly and fixedly connected.

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