Full-automatic assembling device for vehicle-mounted display screen

Abstract

The invention discloses a full-automatic assembling device for a vehicle-mounted display screen, and relates to the technical field of display screen assembly.The full-automatic assembling device comprises an assembling table and a rotating disc, four straight grooves are formed in the assembling table, four arc grooves are formed in the rotating disc, a sliding rod is arranged in each straight groove in a sliding mode, and a follow-up block is arranged at one end of each sliding rod; the alignment mechanism comprises a transverse plate, a first alignment plate is arranged on the transverse plate, and a second alignment plate is arranged on each alignment plate; the driving mechanism comprises a screw rod; the first alignment plate and the second alignment plate firstly ascend and then move towards the middle, so that the liquid crystal display module and the cover plate glass are aligned, after alignment is completed, the lifting column drives the cover plate glass to move downwards to be attached to the liquid crystal display module, then the first alignment plate and the second alignment plate move downwards, and the liquid crystal display module is conveniently taken down; the first electric guide rail is matched with the first moving plate, so that the laminated liquid crystal display module and the cover plate glass can be pushed to the dial indicator, and the positions of the laminated liquid crystal display module and the cover plate glass can be detected.

Description

Technical Field

[0001] The invention relates to the technical field of display screen assembly, and in particular to a fully automatic assembly device for a vehicle-mounted display screen. Background Art

[0002] The in-vehicle display screen is a screen device installed inside the vehicle to display various types of information. It has become an indispensable part of modern cars and has many key features. The in-vehicle display screen is usually composed of display panels, cover glass (CG), liquid crystal display modules (LCM), circuit boards and other components.

[0003] In the production process of an on-vehicle display screen, a liquid crystal display module (LCM) and a cover glass (CG) need to be pressed together by glue. The existing device for assembling the liquid crystal display module and the cover glass together requires a special jig. When in use, the liquid crystal display module is placed in the jig, and then the cover glass (14) is placed on the liquid crystal display module for pressing. However, since the area of ​​the cover glass (14) is larger than that of the liquid crystal display module, this will lead to the following problems: 1. It is inconvenient to remove the pressed cover glass and liquid crystal display module from the jig; 2. Due to the problem of shading or light refraction of the cover glass, it is inconvenient to completely align the cover glass and the liquid crystal display module, resulting in a high defective rate. Summary of the invention

[0004] The purpose of the present invention is to provide a fully automatic assembly device for a vehicle-mounted display screen to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fully automatic assembly device for a vehicle-mounted display screen, comprising an assembly table and a pressing mechanism arranged thereon, the assembly table being provided with four straight grooves, a rotating disk being rotatably arranged in the assembly table, four arc grooves being provided on the rotating disk, a sliding rod being slidably arranged in each of the straight grooves, a follower block being fixedly arranged at one end of each of the sliding rods close to the rotating disk, and each of the follower blocks being movably arranged in each of the arc grooves in a one-to-one manner; a positioning mechanism, comprising a horizontal plate fixedly arranged on the top of each of the sliding rods, a first positioning plate being slidably arranged on each of the horizontal plates, and a second positioning plate being fixedly arranged on each of the first positioning plates; a driving mechanism, comprising a screw rotatably arranged in the assembly table, the screw being threadedly connected to the rotating disk; a measuring mechanism, comprising a fixed plate fixedly arranged on one side of the assembly table, a micrometer being fixedly arranged at one end of the fixed plate away from the assembly table.

[0006] Preferably, the pressing mechanism comprises a support frame fixedly arranged on the assembly table, a cylinder is fixedly arranged on the support frame, and a pressing plate is fixedly arranged at the bottom of the cylinder.

[0007] Preferably, an arc plate is fixedly provided on the outer circumferential surface of the rotating disk, and fixed frames are fixedly provided on both sides of the arc plate. A rotating plate is rotatably provided in each of the fixed frames, and a second torsion spring is fixedly provided between each of the rotating plates and each of the fixed frames in a one-to-one correspondence, and a limiting plate is fixedly provided in the assembly table.

[0008] Preferably, two abutment blocks are fixedly provided on the arc plate, and a first avoidance groove and a second avoidance groove are provided on the limit plate.

[0009] Preferably, four lifting columns are arranged on the assembly platform, and a ball is arranged on the top of each lifting column.

[0010] Preferably, four gear columns are rotatably arranged in the assembly table, an abutment ball is fixedly arranged in each gear column, a spiral groove matching the abutment ball is opened on the outer circumference of each lifting column, and a cross rod is slidably arranged on each lifting column.

[0011] Preferably, tooth plates matching the tooth columns are fixedly provided at both ends of the two transverse plates, two springs are fixedly provided between each of the first alignment plates and each transverse plate, and a first torsion spring is fixedly provided between each of the tooth columns and the assembly table.

[0012] Preferably, the assembly table and the fixed plate are both provided with grooves, the grooves on the assembly table are connected with the grooves on the fixed plate in a one-to-one correspondence, the first electric guide rail and the second electric guide rail are fixedly provided on the assembly table, and the positioning reference block is fixedly provided on the fixed plate.

[0013] Preferably, a plurality of rubber-coated rollers are rotatably arranged on the fixed plate.

[0014] In the above technical scheme, the present invention provides a fully automatic assembly device for a vehicle-mounted display screen, which has the following beneficial effects: through the cooperation of a screw, a rotating disk, a rotating plate and a limit plate, the first alignment plate and the second alignment plate are first raised and then moved toward the middle, thereby aligning the liquid crystal display module and the cover glass, and after the alignment is completed, the lifting column drives the cover glass to move down and fit with the liquid crystal display module, and then the rotating disk is controlled to move downward, so that the first alignment plate and the second alignment plate move downward, thereby facilitating the removal of the pressed liquid crystal display module and the cover glass; through the cooperation of the first electric guide rail and the first movable plate, the pressed liquid crystal display module and the cover glass can be pushed to the micrometer, thereby performing position detection on the pressed liquid crystal display module and the cover glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention;

[0017] Figure 2 A schematic structural diagram of a first movable plate provided in an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of the structure of a micrometer provided in an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of the structure of a rotating disk provided in an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of the structure of an arc groove and a straight groove provided in an embodiment of the present invention;

[0021] Figure 6 A schematic diagram of the structure of a limit plate provided in an embodiment of the present invention;

[0022] Figure 7 A schematic diagram of the structure of a groove provided in an embodiment of the present invention;

[0023] Figure 8 A schematic diagram of the structure of a spring provided in an embodiment of the present invention;

[0024] Fig. 9 A schematic diagram of the structure of an abutment ball provided by an embodiment of the present invention;

[0025] Fig.10 A schematic diagram of the structure of a lifting column provided in an embodiment of the present invention;

[0026] Fig.11 The embodiment of the present invention provides Figure 7 A magnified view of the structure in the middle.

[0027] Description of reference numerals:

[0028] 1. Assembly table; 101. Active cavity; 102. Groove; 2. Support frame; 3. Cylinder; 4. Pressing plate; 5. Fixed plate; 6. Positioning reference block; 7. Micrometer; 8. Measuring rod; 9. Rubber-coated roller; 10. First electric guide rail; 11. First moving plate; 12. Second electric guide rail; 13. Second moving plate; 14. Cover glass; 15. Liquid crystal display module; 21. Screw; 22. Rotating disk; 23. Telescopic sleeve; 24. Servo motor; 25. Straight groove; 26 , arc groove; 27, follower block; 28, slide bar; 31, cross plate; 32, tooth plate; 33, first alignment plate; 34, second alignment plate; 35, spring; 36, tooth column; 37, abutment ball; 38, cross rod; 39, lifting column; 391, spiral groove; 392, ball; 41, first torsion spring; 42, arc plate; 43, fixed frame; 44, rotating plate; 45, abutment block; 46, second torsion spring; 47, limit plate; 48, first avoidance groove; 49, second avoidance groove. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] See also Figure 1-11, a fully automatic assembly device for a vehicle-mounted display screen, comprising an assembly table 1 and a pressing mechanism arranged thereon, the assembly table 1 is provided with four straight grooves 25, a rotating disk 22 is rotatably arranged in the assembly table 1, four arc grooves 26 are arranged on the rotating disk 22, a slide bar 28 is slidably arranged in each straight groove 25, and a follower block 27 is fixedly arranged at one end of each slide bar 28 close to the rotating disk 22, and each follower block 27 is movably arranged in each arc groove 26 in a one-to-one correspondence; a positioning mechanism, comprising a transverse plate 31 fixedly arranged on the top of each slide bar 28, a first alignment plate 33 is slidably arranged on each transverse plate 31, and a second alignment plate 34 is fixedly arranged on each first alignment plate 33; a driving mechanism, comprising a screw rod 21 rotatably arranged in the assembly table 1, and the screw rod 21 is threadedly connected to the rotating disk 22; a measuring mechanism, comprising a fixed plate 5 fixedly arranged on one side of the assembly table 1, and a micrometer 7 is fixedly arranged at one end of the fixed plate 5 away from the assembly table 1;The assembly platform 1 is a rectangular tube with a hollow interior. Four active cavities 101 are provided on the assembly platform 1. Each active cavity 101 is connected to each straight groove 25 in a one-to-one correspondence. Each horizontal plate 31, the first alignment plate 33, and the second alignment plate 34 are all movable in the corresponding active cavity 101. The screw 21 is rotatably connected to the top of the assembly platform 1. The cross section of the slide bar 28 is rectangular. The slide bar 28 can slide up and down and left and right in the corresponding straight groove 25. The follower block 27 moves along the corresponding arc groove 26. In the initial state, the first alignment plate 33 and the second alignment plate 34 are both in the active cavity 101. When in use, the liquid crystal display module 15 with glue on the top is placed in the middle position of the assembly platform 1, and then the cover glass 14 is placed on the liquid crystal display module. The screw rod 21 is then rotated forward. When the screw rod 21 rotates forward, the rotating disk 22 is first driven to move upward. When the rotating disk 22 moves upward, the sliding rods 28 are driven to move upward, so that the first alignment plates 33 and the second alignment plates 34 extend from one end of the active cavity 101 away from the liquid crystal display module 15. When the rotating disk 22 moves to the upper end of the screw rod 21 thread groove, the top surface of the first alignment plate 33 is slightly lower than the top surface of the liquid crystal display module 15, and the height of the cover glass 14 is between the two end surfaces of the second alignment plate 34. At this time, the screw rod 21 continues to rotate forward, and the rotating disk 22 is driven to rotate forward through the end of the screw rod 21 thread groove. When the rotating disk 22 rotates forward, the arc grooves 26 cooperate with the straight grooves 25 to make the follower blocks 27 move along the arc grooves. 26 moves to a position close to the center of the rotating disk 22, so that the slide bar 28 drives the first alignment plate 33 and the second alignment plate 34 to move to the middle position. When the first alignment plate 33 moves, it abuts against the edge of the liquid crystal display module 15, and when the second alignment plate 34 moves, it abuts against the edge of the cover glass 14. With the movement of the slide bar 28, the positions of the liquid crystal display module 15 and the cover glass 14 are completely aligned. At this time, the cover glass 14 and the liquid crystal display module 15 are pressed together by the pressing mechanism to complete the pressing assembly of the cover glass 14 and the liquid crystal display module 15. Subsequently, the screw 21 is reversed, and the screw 21 first drives the disk to move downward, so that the first alignment plate 33 and the second alignment plate 34 are retracted into the corresponding active cavity 101 again. At this time The LCD module 15 and the cover glass 14 can be conveniently taken out. The taken-out LCD module 15 is placed on the fixing plate 5 and pushed toward the micrometer 7. The distance between the edge of the cover glass 14 and the edge of the LCD module 15 is measured by the micrometer 7. If it is qualified, the next step of assembly is carried out. If it is unqualified, it is picked out. A telescopic sleeve 23 is rotatably arranged between the rotating disk 22 and the inner bottom wall of the assembly table 1. The telescopic sleeve 23 is composed of two circular rings. The rotating disk 22 is supported to a certain extent by the telescopic sleeve 23. The distance between the side of the first alignment plate 33 close to the screw 21 and the side of the second alignment plate 34 close to the screw 21 is equal to the distance between the edge of the LCD module 15 and the edge of the cover glass 14 after the alignment is completed. ;

[0031] Specifically, the pressing mechanism includes a support frame 2 fixedly arranged on the assembly table 1, a cylinder 3 is fixedly arranged on the support frame 2, and a pressing plate 4 is fixedly arranged at the bottom of the cylinder 3; the area of ​​the pressing plate 4 is larger than the area of ​​the cover glass 14, and the pressing plate 4 is fixedly connected to the downward pressing end of the cylinder 3. When the cover glass 14 and the liquid crystal display module 15 are aligned, the cylinder 3 is started, and the pressing plate 4 is driven downward by the cylinder 3, so that the cover glass 14 is pressed on the liquid crystal display module 15.

[0032] In another embodiment of the present invention, an arc plate 42 is fixedly provided on the outer circumference of the rotating disk 22, and fixed frames 43 are fixedly provided on both sides of the arc plate 42. A rotating plate 44 is rotatably provided in each fixed frame 43, and a second torsion spring 46 is fixedly provided between each rotating plate 44 and each fixed frame 43 in a one-to-one correspondence, and a limit plate 47 is fixedly provided in the assembly platform 1; Figure 6 As shown, the fixing frames 43 are fixedly arranged at two diagonal corners of the arc plate 42, and in the initial state, the rotating plate 44 on the right is in contact with the limiting plate 47, at which time the first alignment plate 33 and the second alignment plate 34 are both at the bottom of the active cavity 101. When it is necessary to align the liquid crystal display module 15 and the cover glass 14, the screw rod 21 is rotated forward, and the rotating plate 44 on the right is in contact with the limiting plate 47, so that the rotating disk 22 will not rotate with the rotation of the screw rod 21, thereby controlling the rotating disk 22 to rise, and then the first alignment plate 33 and the second alignment plate 34 are raised. When the liquid crystal display module 15 and the cover glass 14 are aligned, the screw rod 21 is reversed, and at this time, the rotating plate 44 on the left is in contact with the limiting plate 47, so that the rotating disk 22 descends, and the alignment is completed and the cover glass 14 and the liquid crystal display module 15 can be pressed together.

[0033] Specifically, two abutment blocks 45 are fixedly provided on the arc plate 42, and a first avoidance groove 48 and a second avoidance groove 49 are provided on the limit plate 47; Figure 6 As shown, one of the two abutment blocks 45 is fixedly arranged on the left side of the upper fixing frame 43, and the other abutment block 45 is fixedly arranged on the right side of the lower fixing frame 43. Each rotating plate 44 is made perpendicular to the fixing frame 43 by each second torsion spring 46, and each abutment block 45 abuts against the rotating plate 44 when it is vertical, as shown in FIG. Figure 6As shown, in the initial state, the right side surface of the rotating plate 44 on the right side abuts against the limit plate 47. At this time, the forward-rotating screw 21 prevents the rotating plate 44 on the right side from rotating to the left through the abutment block 45, so that the rotating disk 22 and the arc plate 42 move up together. In the process of the rotating disk 22 moving up, the rotating plate 44 on the left side abuts against the limit plate 47 to produce rotation. As the rotating disk 22 moves up, when the first alignment plate 33 and the second alignment plate 34 move up to the specified position, the rotating plate 44 on the right side just enters the first avoidance groove 48 on the upper side. At this time, the rotating disk 22 also moves to the upper end of the thread groove of the screw 21, and continues to rotate the screw 21 forward. The screw 21 will drive the rotating disk 22 to rotate forward, so that the extended first alignment plate 33 and the second alignment plate 34 move toward the middle, and then align the liquid crystal display module 15 with the cover glass 14. When the alignment is completed, the left rotating plate 44 just passes through the limiting plate 47. At this time, the screw rod 21 is rotated in the opposite direction, and the rotating disk 22 moves downward through the abutment between the left rotating plate 44 and the limiting plate 47. When the rotating disk 22 moves down to the lower end of the thread groove of the screw rod 21, the left rotating plate 44 just enters the second avoidance groove 49 on the lower side, and the screw rod 21 is continued to be reversed. The screw rod 21 drives the rotating disk 22 to reverse, thereby moving the sliding rod 28 outward, and then the first alignment plate 33 and the second alignment plate 34 return to the initial position. At this time, the right rotating plate 44 just passes through the limiting plate 47.

[0034] Furthermore, four lifting columns 39 are provided on the assembly platform 1, and a ball 392 is provided on the top of each lifting column 39; when in use, the liquid crystal display module 15 is placed between the four lifting columns 39, and the four lifting columns 39 are symmetrically arranged, and then the cover glass 14 is placed on the four lifting columns 39. Since there is glue on the top surface of the liquid crystal display module 15, during assembly, the cover glass 14 needs to be aligned with the liquid crystal display module 15 before the liquid crystal display module 15 and the cover glass 14 can be attached together. The cover glass 14 is supported by four lifting columns 39, and the screw 21 rotates forward. The first alignment plate 33 and the second alignment plate 34 move toward the middle at the same time. The friction force of the second alignment plate 34 pushing the cover glass 14 is reduced by the ball 392. After the LCD display module 15 and the cover glass 14 are aligned, the screw 21 drives the rotating disk 22 to continue to rotate forward, so that each lifting column 39 slowly descends and retracts into the assembly table 1, so that the cover glass 14 and the LCD display module 15 are fitted together in a neat alignment.

[0035] Furthermore, four tooth columns 36 are rotatably arranged in the assembly platform 1, and a contact ball 37 is fixedly arranged in each tooth column 36. A spiral groove 391 matched with the contact ball 37 is provided on the outer circumference of each lifting column 39, and a cross rod 38 is slidably arranged on each lifting column 39; a cross groove matched with the cross rod 38 is provided in the lifting column 39, and the lifting column 39 can only slide up and down on the assembly platform 1 through the cooperation of the cross rod 38, and each contact ball 37 is located in each spiral groove 391 one by one. When the tooth column 36 is rotated, the lifting column 39 is moved downward through the cooperation of the contact ball 37 and the spiral groove 391, so that the cover glass 14 on each lifting column 39 is close to the liquid crystal display module 15 after the alignment is completed.

[0036] Specifically, the two ends of the two horizontal plates 31 are fixedly provided with tooth plates 32 adapted to the tooth columns 36, two springs 35 are fixedly provided between each first alignment plate 33 and each horizontal plate 31, and a first torsion spring 41 is fixedly provided between each tooth column 36 and the assembly platform 1; Fig.11 As shown, an annular groove for the first torsion spring 41 to move is provided on the assembly platform 1. In the initial state, the torsion spring is used to keep each tooth column 36 and the lifting column 39 at a certain rotation angle, so that the lifting column 39 extends from the assembly platform 1. When the rotating disk 22 rotates forward and drives the sliding rod 28 to move toward the direction close to the screw rod 21 through the arc groove 26 and the straight groove 25, the first alignment plate 33 and the second alignment plate 34 first abut against the liquid crystal display module 15 and the cover glass 14 respectively, so that the liquid crystal display module 15 and the cover glass 14 are aligned. When the liquid crystal display module 15 and the cover glass 14 are aligned, the bottom of the first alignment plate 33 abuts against the inner wall of the active cavity 101, so as to prevent the liquid crystal display module 15 from being squeezed. When the group 15 completes the alignment, the four sides of the liquid crystal display module 15 are aligned with the corresponding inner walls of the active cavity 101. At this time, the rotating disk 22 continues to be rotated forward, and the rotating disk 22 will continue to drive the sliding rod 28 and the cross plate 31 to move in the direction close to the screw rod 21, so that each spring 35 is compressed. The tooth plates 32 on both sides of the cross plate 31 will abut and engage with the corresponding tooth columns 36 in this process, and drive the tooth columns 36 to rotate, so that each lifting column 39 is retracted into the assembly table 1, and then the cover glass 14 is fitted with the liquid crystal display module 15 when the alignment is completed. When the rotating disk 22 moves down, the screw rod 21 continues to drive the rotating disk 22 to reverse. At this time, the downward moving tooth plate 32 moves in the direction away from the tooth column 36, so that the lifting column 39 rises to the initial position.

[0037] In another embodiment of the present invention, the assembly platform 1 and the fixed plate 5 are both provided with grooves 102, the grooves 102 on the assembly platform 1 are connected to the grooves 102 on the fixed plate 5 in a one-to-one correspondence, the assembly platform 1 is fixedly provided with a first electric guide rail 10 and a second electric guide rail 12, and the fixed plate 5 is fixedly provided with a positioning reference block 6; Figure 3As shown, the groove 102 on the upper side of the assembly table 1 is connected to the groove 102 on the upper side of the fixing plate 5, and the groove 102 on the lower side of the assembly table 1 is connected to the groove 102 on the lower side of the fixing plate 5. The first electric guide rail 10 is in the groove 102 on the upper side, and the second electric guide rail 12 is in the groove 102 on the lower side. The first electric guide rail 10 is provided with a first movable plate 11 at one end away from the micrometer 7, and the second electric guide rail 12 is provided with a second movable plate 13 at one end close to the micrometer 7. The movable guide rail 10 can drive the first movable plate 11 to move along the first electric guide rail 10, and the second electric guide rail 12 can drive the second movable plate 13 to move along the second electric guide rail 12. This is the prior art and will not be described in detail. When the liquid crystal display module 15 and the cover glass 14 are aligned, the reverse screw 21 moves the rotating disk 22 downward. At this time, the first alignment plate 33 and the second alignment plate 34 are retracted into the active cavity 101, and the lifting column 39 is also retracted into the assembly table 1, and then the cylinder 3 is started. , so that the pressing plate 4 moves downward to press the liquid crystal display module 15 and the cover glass 14 together, and then the first electric guide rail 10 is started, and the first movable plate 11 is driven by the first electric guide rail 10 to move in the direction close to the micrometer 7, so that the pressed liquid crystal display module 15 and the cover glass 14 move toward the micrometer 7. The micrometer 7 has a measuring rod 8. When in use, the micrometer 7 is first reset to zero, and the height of the measuring rod 8 is lower than the lower end surface of the cover glass 14. With the push of the first movable plate 11, the liquid crystal display module 15 pushes the measuring rod 8 to move, and the cover glass 14 abuts against the side wall of the positioning reference block 6 during the movement. At this time, the data of the micrometer 7 is observed and recorded. The data of the micrometer 7 represents the distance between the side wall of the cover glass 14 and the side wall of the liquid crystal display module 15. According to this distance, it can be judged whether the pressed position of the liquid crystal display module 15 and the cover glass 14 is qualified. If it is unqualified, the pressed liquid crystal display module 15 and the cover glass 14 are picked out.

[0038] Specifically, a plurality of rubber-coated rollers 9 are rotatably arranged on the fixed plate 5; the upper end surfaces of the rubber-coated rollers 9 are flush with the top surface of the assembly platform 1. When the first movable plate 11 pushes the pressed liquid crystal display module 15 and the cover glass 14 onto the fixed plate 5, the sliding friction is changed into rolling friction by the rubber-coated rollers 9, thereby preventing the liquid crystal display module 15 from being scratched on the movable plate. A servo motor 24 is fixedly arranged in the assembly platform 1, and the output end of the servo motor 24 is fixedly connected to the screw 21, and the forward and reverse rotation of the screw 21 is controlled by the servo motor 24.

[0039] In another embodiment of the present invention: when the alignment of the liquid crystal display module 15 and the cover glass 14 is completed, the rotating disk 22 is driven to move downward, so that the first alignment plate 33, the second alignment plate 34 and the lifting column 39 are all moved downward, and then the cylinder 3 is started to control the downward pressure of the cylinder 3 to pre-press the liquid crystal display module 15 and the cover glass 14. After the pre-pressing is completed, the first electric guide rail 10 is started to make the first movable plate 11 push the pre-pressed liquid crystal display module 15 and the cover glass 14 to the micrometer 7, and then the data of the micrometer 7 is used to determine whether the pre-pressed liquid crystal display module 15 and the cover glass 14 are aligned. If the alignment is neat, the second electric guide rail 12 is started to push the pre-pressed liquid crystal display module 15 and the cover glass 14 to the micrometer 7. The display module 15 and the cover glass 14 are pushed to the bottom of the pressing plate 4, and then the cylinder 3 is started to adjust the downward pressure to formally press the pre-pressed liquid crystal display module 15 and the cover glass 14. If the alignment is not neat, the pre-pressed liquid crystal display module 15 is directly removed. Since the bonding force between the pre-pressed liquid crystal display module 15 and the cover glass 14 is relatively small, the pre-pressed liquid crystal display module 15 and the cover glass 14 are easier to disassemble at this time, thereby facilitating recycling. When the pre-pressed product is formally pressed or the unqualified pre-pressed product is removed, the screw 21 is driven to reverse the rotating disk 22, so that the first alignment plate 33, the second alignment plate 34 and the lifting column 39 return to their initial positions.

[0040] Working principle: When in use, place the LCD display module 15 in the middle position of the assembly table 1, then place the cover glass 14 on the four lifting columns 39, start the servo motor 24 to drive the screw 21 to rotate forward, and the rotating plate 44 and the limit plate 47 are abutted to make the rotating disk 22 move upward first. When the rotating disk 22 moves upward, it drives the first alignment plate 33 and the second alignment plate 34 to extend out of the active cavity 101. When the rotating disk 22 moves up to the upper end of the thread groove of the screw 21, the corresponding rotating disk 22 moves to the first avoidance groove 48, and the first alignment plate The upper end surface of 33 is at the same height as the upper end surface of the liquid crystal display module 15. At this time, the screw 21 continues to rotate forward. The screw 21 will drive the rotating disk 22 to rotate forward. When the rotating disk 22 rotates forward, the arc groove 26 and the straight groove 25 cooperate to make the slide bar 28 move toward the middle of the assembly table 1. When the rotating disk 22 rotates forward to a specified angle, the lower end of the first alignment plate 33 abuts against the inner wall of the active cavity 101. At this time, the servo motor 24 is stopped, and the first alignment plate 33 and the second alignment plate 34 complete the alignment of the liquid crystal display module 15 and the cover glass 14. At this time, as the slide bar 28 continues to move , the tooth plate 32 meshes with the corresponding tooth column 36 and drives the tooth column 36 to rotate, so that each lifting column 39 descends, and then the liquid crystal display module 15 and the cover glass 14 are attached together when the alignment is completed, and then the servo motor 24 drives the screw 21 to reverse, and when the screw 21 reverses, the rotating plate 44 and the limit plate 47 cooperate to move the rotating disk 22 downward, so that the first alignment plate 33 and the second alignment plate 34 are retracted into the active cavity 101, and then the servo motor 24 is stopped, and the cylinder 3 is started, and the cylinder 3 drives the pressing plate 4 to align the liquid crystal display module The group 15 is pressed together with the cover glass 14. After the pressing is completed, the first electric guide rail 10 is started to push the pressed liquid crystal display module 15 and the cover glass 14 to the position of the micrometer 7. The micrometer 7 is used to check whether the pressing is qualified. Then the servo motor 24 is started to reverse, the rotating disk 22 moves down to the lower end of the thread groove of the screw 21, the rotating plate 44 moves to the second avoidance groove 49, and the servo motor 24 continues to rotate the screw 21 by a certain angle, so that the first alignment plate 33, the second alignment plate 34 and the lifting column 39 return to the initial position.

[0041] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fully automatic assembly device for a vehicle-mounted display screen, comprising an assembly table (1) and a pressing mechanism arranged thereon, characterized in that: The assembly platform (1) is provided with four straight grooves (25), a rotating disk (22) is rotatably arranged in the assembly platform (1), and four arc grooves (26) are arranged on the rotating disk (22), a slide bar (28) is slidably arranged in each of the straight grooves (25), a follower block (27) is fixedly arranged at one end of each of the slide bars (28) close to the rotating disk (22), and each of the follower blocks (27) is movably arranged in each of the arc grooves (26) in a one-to-one correspondence; An alignment mechanism comprises a horizontal plate (31) fixedly arranged on the top of each slide bar (28), a first alignment plate (33) being slidably arranged on each horizontal plate (31), and a second alignment plate (34) being fixedly arranged on each first alignment plate (33); A driving mechanism, comprising a screw rod (21) rotatably arranged in the assembly platform (1), wherein the screw rod (21) is threadedly connected to the rotating disk (22); The measuring mechanism comprises a fixing plate (5) fixedly arranged on one side of an assembly platform (1), wherein a micrometer (7) is fixedly arranged on one end of the fixing plate (5) away from the assembly platform (1).

2. The fully automatic assembly device for a vehicle-mounted display screen according to claim 1, characterized in that: The pressing mechanism comprises a support frame (2) fixedly arranged on an assembly platform (1), a cylinder (3) fixedly arranged on the support frame (2), and a pressing plate (4) fixedly arranged at the bottom of the cylinder (3).

3. The fully automatic assembly device for a vehicle-mounted display screen according to claim 2, characterized in that: An arc plate (42) is fixedly provided on the outer circumference of the rotating disk (22), fixed frames (43) are fixedly provided on both sides of the arc plate (42), a rotating plate (44) is rotatably provided in each of the fixed frames (43), a second torsion spring (46) is fixedly provided between each of the rotating plates (44) and each of the fixed frames (43) in a one-to-one correspondence, and a limit plate (47) is fixedly provided in the assembly platform (1).

4. The fully automatic assembly device for a vehicle-mounted display screen according to claim 3, characterized in that: Two abutment blocks (45) are fixedly arranged on the arc plate (42), and a first avoidance groove (48) and a second avoidance groove (49) are opened on the limiting plate (47).

5. The fully automatic assembly device for a vehicle-mounted display screen according to claim 4, characterized in that: Four lifting columns (39) are arranged on the assembly platform (1), and a ball (392) is arranged at the top of each lifting column (39).

6. The fully automatic assembly device for a vehicle-mounted display screen according to claim 5, characterized in that: Four tooth columns (36) are rotatably arranged in the assembly platform (1), and an abutment ball (37) is fixedly arranged in each of the tooth columns (36). A spiral groove (391) matching the abutment ball (37) is formed on the outer circumference of each lifting column (39), and a cross rod (38) is slidably arranged on each of the lifting columns (39).

7. The fully automatic assembly device for a vehicle-mounted display screen according to claim 6, characterized in that: A toothed plate (32) matched with the toothed column (36) is fixedly arranged at both ends of the two transverse plates (31), two springs (35) are fixedly arranged between each of the first alignment plates (33) and each of the transverse plates (31), and a first torsion spring (41) is fixedly arranged between each of the toothed columns (36) and the assembly platform (1).

8. The fully automatic assembly device for a vehicle-mounted display screen according to claim 7, characterized in that: The assembly platform (1) and the fixed plate (5) are both provided with grooves (102), the grooves (102) on the assembly platform (1) are connected to the grooves (102) on the fixed plate (5) in a one-to-one correspondence, a first electric guide rail (10) and a second electric guide rail (12) are fixedly provided on the assembly platform (1), and a positioning reference block (6) is fixedly provided on the fixed plate (5).

9. The fully automatic assembly device for a vehicle-mounted display screen according to claim 8, characterized in that: A plurality of rubber-coated rollers (9) are rotatably arranged on the fixed plate (5).

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