Tablet computer display screen assembly limiting matching equipment

Abstract

The invention relates to the technical field of display screen assembly, and discloses tablet personal computer display screen assembly limiting matching equipment. The equipment comprises a main body frame and an auxiliary body frame, wherein the main body frame comprises a mounting table arranged on the main body frame, and a first linear groove, a second linear groove and a right-angle groove are formed in the mounting table; the suction cup mechanism comprises four negative pressure suction cups mounted on the mounting table, and one end of each negative pressure suction cup is connected with external negative pressure equipment; the moving mechanism is used for driving the negative-pressure sucker to approach the display screen; a right-angle positioning plate, a first spring block and a second spring block extend out from the lower portion of the mounting table, meanwhile, the right-angle positioning plate, the first spring block and the second spring block slide towards the central axis close to the positioning mechanism along a right-angle groove, a first linear groove and a second linear groove correspondingly, and then the shell is quickly positioned and fixed; therefore, after the display screen is assembled, the limiting of the shell is quickly relieved through the resetting of the mechanism, and the phenomenon that the shell is scratched due to blanking is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen assembly, and in particular to a tablet computer display screen assembly limiting matching device. Background Art

[0002] At present, with the development of science and technology, the use of tablet computers has greatly increased the convenience of people's office work. By using tablet computers, people can perform office, shopping, video and other operations. Because tablet computers are easier to carry than traditional computers and laptops, people will choose to use tablet computers when traveling daily.

[0003] At present, when manufacturing tablet computers, the shell and the display need to be assembled. The commonly used assembly equipment is to manually place the shell in a special mold, and use a suction cup to absorb the display and assemble it with the shell. However, this equipment is manually loaded and unloaded during use, and it is easy to cause friction between the shell and the mold when taking out the parts after assembly, which greatly affects the product quality.

[0004] Based on this, the present invention designs a tablet computer display screen assembly limiting cooperation device to solve the above problems. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a tablet computer display screen assembly limiting and matching device, aiming to solve the technical problems existing in the prior art mentioned in the background technology.

[0006] The embodiment of the present invention is implemented as follows: a tablet computer display screen assembly limit matching device, the device comprising:

[0007] Main frame: including a mounting platform arranged on the main frame, the mounting platform is provided with a first straight line groove, a second straight line groove and a right angle groove;

[0008] Suction cup mechanism: comprising four negative pressure suction cups installed on the mounting platform, one end of the negative pressure suction cup is connected to the external negative pressure equipment;

[0009] Moving mechanism: used to drive the negative pressure suction cup close to the display screen;

[0010] Back pressure mechanism: used to cooperate with the support mechanism to release the support for the display screen;

[0011] Limiting mechanism: used to limit the display screen;

[0012] The positioning mechanism comprises a right-angle positioning plate, a first spring block and a second spring block for limiting the housing. The right-angle positioning plate, the first spring block and the second spring block are in one-to-one contact with the right-angle groove, the first straight groove and the second straight groove respectively.

[0013] Furthermore, the moving mechanism includes a sliding plate that is slidably connected to the two negative pressure suction cups, two moving rods are fixedly installed on the surface of the sliding plate, each moving rod is in contact with the back pressure plate, the back pressure plate is fixedly installed on the surface of the mounting platform, the surface of the sliding plate is connected to the limiting mechanism through a compression spring, the back pressure plate is provided with an upper straight surface, a slope surface and a lower straight surface that cooperate with the moving rod, a bending plate is fixedly installed on the surface of the negative pressure suction cup, the bending plate is connected to the sliding plate through a reset spring, the surface of the bending plate is provided with a lower sliding section, a bending section and an upper sliding section that cooperate with the two sliding wheels, the two sliding wheels are rotatably installed on the surface of the moving slide rod, the moving slide rod passes through the limiting mechanism and is slidably connected to the limiting mechanism.

[0014] Furthermore, the back pressure mechanism includes an L-shaped rack fixedly mounted on the bending section, the L-shaped rack meshing with the rotating gear, a movable slide bar fixedly mounted on the surface of the L-shaped rack, the rotating gear rotatably connected to the limiting mechanism, the rotating gear meshing with the thrust rack, the thrust rack slidably connected to the limiting mechanism, a thrust block fixedly mounted on the surface of the thrust rack, and the thrust block is provided with an upper contact surface, an arc-shaped contact surface and a lower contact surface that cooperate with the supporting mechanism.

[0015] Furthermore, the limiting mechanism includes a limiting frame slidably connected to the mounting table, the surface of the sliding plate is connected to the limiting frame via a compression spring, the movable sliding rod passes through the limiting frame and is slidably connected to the limiting frame, the rotating gear is rotatably connected to the limiting frame, the thrust rack is slidably connected to the limiting frame, and the sliding plate is slidably connected to the limiting frame.

[0016] Furthermore, the supporting mechanism includes a supporting plate installed on the limit frame, a connecting block is fixedly installed on the surface of the supporting plate, the connecting block is slidably connected to the surface of the limit frame, the connecting block and the limit frame are connected by a tension spring, and an extrusion ball column matching the upper contact surface, the arc contact surface and the lower contact surface is fixedly installed on the inner wall of the connecting block, a glue discharge column is fixedly installed on the surface of the supporting plate, a plurality of glue discharge holes are provided on the glue discharge column, a glue inlet hole is also fixedly installed on the surface of the supporting plate, a glue liquid channel is provided inside the supporting plate, and the glue discharge column, the glue liquid channel and the glue inlet hole are connected, and the other end of the glue inlet hole is connected to an external glue application device.

[0017] Furthermore, the positioning mechanism also includes a rotating disk rotatably connected to the mounting table, the rotating disk is connected to the mounting table through a torsion spring, a concentric groove, a first proximal groove and a second proximal groove are provided on the surface of the rotating disk, contact columns are fixedly installed on the surfaces of the right-angle positioning plate, the first spring block and the second spring block, and the contact columns are respectively in contact with the concentric groove, the first proximal groove and the second proximal groove, and the trajectory radius of the concentric groove remains unchanged, while the trajectory radius of the first proximal groove and the second proximal groove continuously decreases, three down ramps, an inclined ramp and an up ramp are respectively provided inside the rotating disk, which are matched with the contact columns, and the down ramp, the inclined ramp and the up ramp are sequentially connected, the right-angle positioning plate, the first spring block and the second spring block respectively correspond to the concentric groove, the second proximal groove and the first proximal groove one by one, and the surface of the rotating disk is provided with incomplete teeth.

[0018] Furthermore, the device also includes a driving mechanism, which includes a driving motor fixedly mounted on the mounting table, the output end of the driving motor passes through the mounting table and is rotatably connected to the mounting table, the output end of the driving motor is fixedly mounted with a rotating screw, the rotating screw and the limit frame form a spiral pair transmission, the output end of the driving motor is coaxially fixedly mounted with a driving gear, and the driving gear is meshed with the rotating disk.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention extends a right-angle positioning plate, a first spring block and a second spring block from the bottom of the mounting platform. At the same time, the right-angle positioning plate, the first spring block and the second spring block slide along the right-angle groove, the first straight groove and the second straight groove respectively toward the central axis of the positioning mechanism, thereby quickly positioning and fixing the shell, so that after the display screen is assembled, the limit of the shell is quickly released by resetting the mechanism to avoid the shell from being scratched by cutting.

[0021] 2. After the support mechanism of the present invention no longer blocks the display screen, a reaction force is generated on the back pressure mechanism through the mounting platform, and then the back pressure mechanism drives the negative pressure suction cup to continue to move downward relative to the limiting mechanism. At this time, the display screen is installed on the outer shell through the pressing action of the negative pressure suction cup. When the assembly is completed, the negative pressure of the negative pressure device disappears, and the external drive moves in the opposite direction, driving the mechanism to reset, thereby completing the rapid and automatic installation of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a tablet computer display screen assembly limiting cooperation device provided by an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0025] Figure 4 It is a schematic cross-sectional structure diagram of another viewing angle of a tablet computer display screen assembly limiting cooperation device of the present invention;

[0026] Figure 5 It is a partial cross-sectional structural schematic diagram of the rotating disk of the present invention;

[0027] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure at B;

[0028] Figure 7 For the present invention Figure 5 A schematic diagram of the enlarged structure at C;

[0029] Figure 8 For the present invention Figure 5 Another perspective structural diagram of;

[0030] Fig. 9 For the present invention Figure 8 A schematic diagram of the structure at D of FIG.

[0031] Fig.10 It is a schematic cross-sectional structure diagram of another viewing angle of a tablet computer display screen assembly limiting cooperation device;

[0032] Fig.11 For the present invention Fig.10 Enlarged structural diagram at E.

[0033] In the accompanying drawings: 1. main frame; 101. mounting table; 102. first straight groove; 103. second straight groove; 104. right angle groove; 2. suction cup mechanism; 201. negative pressure suction cup; 3. moving mechanism; 301. sliding plate; 302. moving rod; 303. compression spring; 304. back pressure plate; 305. upper straight surface; 306. slope surface; 307. lower straight surface; 308. bending plate; 309. sliding section; 310. bending section; 311. upper sliding section; 312. moving sliding rod; 313. sliding wheel; 4. back pressure mechanism; 401. thrust block; 402. thrust rack; 403. rotating gear; 404. L-shaped rack; 405. upper contact surface; 406. arc contact surface; 407, lower contact surface; 5, limiting mechanism; 501, limiting frame; 6, supporting mechanism; 601, supporting plate; 602, connecting block; 603, squeezing ball column; 604, glue outlet column; 605, glue outlet hole; 606, glue channel; 607, glue inlet hole; 7, positioning mechanism; 701, right-angle positioning plate; 702, first spring block; 703, second spring block; 704, contact column; 705, rotating disk; 706, concentric groove; 707, first proximal groove; 708, second proximal groove; 709, down ramp; 710, ramp; 711, up ramp; 712, torsion spring; 8, driving mechanism; 801, driving motor; 802, rotating screw; 803, driving gear. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] It can be understood that the terms "first", "second", etc. used in the present application can be used in this article to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0036] like Figure 1 , Figure 3 , Figure 5 and Figure 8 As shown, in one embodiment, a tablet computer display screen assembly limiting matching device is provided, the device comprising:

[0037] The main frame 1 includes a mounting platform 101 disposed on the main frame 1 , and the mounting platform 101 is provided with a first straight groove 102 , a second straight groove 103 and a right angle groove 104 ;

[0038] Suction cup mechanism 2: comprises four negative pressure suction cups 201 mounted on the mounting platform 101, one end of the negative pressure suction cup 201 is connected to an external negative pressure device;

[0039] Moving mechanism 3: used to drive the negative pressure suction cup 201 to approach the display screen;

[0040] Back pressure mechanism 4: used to cooperate with the support mechanism 6 to release the support for the display screen;

[0041] Limiting mechanism 5: used to limit the display screen;

[0042] Positioning mechanism 7: includes a right-angle positioning plate 701, a first spring block 702 and a second spring block 703 for limiting the housing, and the right-angle positioning plate 701, the first spring block 702 and the second spring block 703 are in one-to-one contact with the right-angle groove 104, the first straight groove 102 and the second straight groove 103 respectively.

[0043] In actual application of the embodiment of the present invention, when the display screen is assembled, the display screen is placed on the support mechanism 6 by an external conveying device, and the housing is placed on the mounting table 101 by an external clamping device. Figure 1 , Figure 5 and Figure 8 As shown, at this time, under the action of external drive, the right-angle positioning plate 701, the first spring block 702 and the second spring block 703 are extended from the bottom of the mounting platform 101, and at the same time, the right-angle positioning plate 701, the first spring block 702 and the second spring block 703 slide along the right-angle groove 104, the first straight groove 102 and the second straight groove 103 respectively toward the central axis of the positioning mechanism 7, so as to quickly position and fix the shell, so that after the display screen is assembled, the limit of the shell is quickly released by resetting the mechanism to avoid the shell from being scratched by the blanking, and at the same time, the external drive drives the limit mechanism 5 to move downward, and as the limit mechanism 5 moves downward, as shown in FIG. Figure 3 As shown, through the coordinated action of the moving mechanism 3, the back pressure mechanism 4, and the supporting mechanism 6, the negative pressure suction cup 201 is driven to move first to the top of the display screen, and then close to the display screen, and the negative pressure is generated by the external negative pressure device to adsorb the display screen on the negative pressure suction cup 201. At this time, as the limiting mechanism 5 continues to move downward, the supporting mechanism 6 no longer supports and blocks the display screen, and at the same time, the glue is evenly applied on the edge of the display screen. When the supporting mechanism 6 no longer blocks the display screen, the mounting table 101 generates a reaction force on the back pressure mechanism 4, and then the back pressure mechanism 4 drives the negative pressure suction cup 201 to continue to move downward relative to the limiting mechanism 5. At this time, the display screen is installed on the shell through the pressing action of the negative pressure suction cup 201. When the assembly is completed, the negative pressure of the negative pressure device disappears, and at the same time, the external drive moves in the opposite direction, driving the mechanism to reset, thereby completing the rapid and automatic installation of the display screen.

[0044] like Figure 2As shown, as a preferred embodiment of the present invention, the moving mechanism 3 includes a sliding plate 301 that is slidably connected to the two negative pressure suction cups 201, and two moving rods 302 are fixedly installed on the surface of the sliding plate 301. Each moving rod 302 is in contact with a back pressure plate 304, and the back pressure plate 304 is fixedly installed on the surface of the mounting platform 101. The surface of the sliding plate 301 is connected to the limiting mechanism 5 through a compression spring 303, and the back pressure plate 304 is provided with a spring that cooperates with the moving rod 302. The upper straight surface 305, the slope surface 306 and the lower straight surface 307, the surface of the negative pressure suction cup 201 is fixedly installed with a bending plate 308, the bending plate 308 is connected to the sliding plate 301 through a reset spring, and the surface of the bending plate 308 is provided with a lower sliding section 309, a bending section 310, and an upper sliding section 311 that cooperate with two sliding wheels 313, and the two sliding wheels 313 are rotatably installed on the surface of the movable slide rod 312, and the movable slide rod 312 passes through the limiting mechanism 5 and is slidably connected to the limiting mechanism 5.

[0045] In practical application of the embodiment of the present invention, after the display screen is transported to the support mechanism 6, when the limiting mechanism 5 moves downward, as shown in FIG. Figure 2 As shown, from Figure 2As viewed from the front, the moving rod 302 slides along the surface of the back pressure plate 304. As the moving rod 302 passes through the upper straight surface 305, the slope surface 306 and the lower straight surface 307 during the downward movement, the sliding plates 301 at both ends are driven to move toward each other under the pressure of the slope surface 306, thereby driving the negative pressure suction cup 201 to move above the display screen. At the same time, the negative pressure suction cup 201 drives the bending plate 308 to move synchronously. At this time, the sliding wheel 313 passes through the descending section 309, the bending section 310 When the sliding wheel 313 moves to the upper sliding section 311, due to the limiting effect of the sliding wheel 313, the sliding wheel 313 squeezes the bending section 310 downward when it moves to the bending section 310, so that the negative pressure suction cups 201 at both ends move toward each other and move downward toward the display screen. When the sliding wheel 313 moves to the upper sliding section 311, the negative pressure suction cup 201 is attached to the display screen, and the negative pressure device connected to the other end of the negative pressure suction cup 201 starts to operate. At this time, the negative pressure generated on the negative pressure suction cup 201 presses the display screen. When the support mechanism 6 is moved downward, the support mechanisms 6 at both ends move in opposite directions through the reaction of the mounting table 101 to the back pressure mechanism 4. At the same time, the support mechanism 6 is glued to the surface of the display screen, so that the display screen is no longer supported and no interference is caused to the downward movement of the display screen in the later stage. When the support mechanism 6 has completed the movement, the moving slide bar 312 is driven downward by the back pressure mechanism 4. The downward movement of the moving slide bar 312 squeezes the bending plate 308 to drive the negative pressure suction cup 201 to move downward, so that the display screen is docked with the outer shell below, thereby completing the rapid installation of the display screen.

[0046] like Figure 2 As shown, as another preferred embodiment of the present invention, the back pressure mechanism 4 includes an L-shaped rack 404 fixedly mounted on the bending section 310, the L-shaped rack 404 is meshed with the rotating gear 403, a movable slide bar 312 is fixedly mounted on the surface of the L-shaped rack 404, the rotating gear 403 is rotatably connected with the limiting mechanism 5, the rotating gear 403 is meshed with the thrust rack 402, the thrust rack 402 is slidably connected with the limiting mechanism 5, a thrust block 401 is fixedly mounted on the surface of the thrust rack 402, and the thrust block 401 is provided with an upper contact surface 405, an arc-shaped contact surface 406 and a lower contact surface 407 which cooperate with the supporting mechanism 6.

[0047] In actual application of the embodiment of the present invention, after the negative pressure suction cup 201 adsorbs and fixes the display screen, as the limiting mechanism 5 continues to move downward, the thrust block 401 contacts the mounting platform 101, and the thrust block 401 is pushed upward by the reaction force of the mounting platform 101. The upward movement of the thrust block 401 drives the support mechanism 6 to move through the upper contact surface 405, the arc contact surface 406 and the lower contact surface 407, so that the support mechanism 6 no longer supports the display screen. When the support mechanism 6 moves out of the interference range of the downward movement of the display screen, the thrust rack 402 is meshed with the rotating gear 403, and the L-shaped rack 404 is driven to move downward through the gear rack transmission, and then the negative pressure suction cup 201 is driven downward by squeezing the bending plate 308 through the moving slide rod 312. At this time, the negative pressure suction cup 201 drives the display screen and the shell to be assembled together, thereby achieving the purpose of fast and stable assembly.

[0048] like Figure 1 and Figure 2 As shown, as another preferred embodiment of the present invention, the limiting mechanism 5 includes a limiting frame 501 slidably connected to the mounting table 101, the surface of the sliding plate 301 is connected to the limiting frame 501 through a compression spring 303, the movable slide rod 312 passes through the limiting frame 501 and is slidably connected to the limiting frame 501, the rotating gear 403 is rotatably connected to the limiting frame 501, the thrust rack 402 is slidably connected to the limiting frame 501, and the sliding plate 301 is slidably connected to the limiting frame 501.

[0049] In actual application of the embodiment of the present invention, after the display screen is placed on the supporting mechanism 6, the limit frame 501 is driven by the outside to slide vertically downward along the mounting platform 101. At the same time, when the negative pressure suction cup 201 adsorbs the display screen, since the contact section between the negative pressure suction cup 201 and the display screen is relatively soft, slight deformation of the negative pressure suction cup 201 when adsorbing the display screen is avoided, resulting in inaccurate positioning of the display screen. Therefore, the limit frame 501 completes the limiting effect on the display screen.

[0050] like Figure 2 , Fig.10 and Fig.11As shown, as another preferred embodiment of the present invention, the support mechanism 6 includes a support plate 601 installed on the limit frame 501, a connecting block 602 is fixedly installed on the surface of the support plate 601, the connecting block 602 is slidably connected to the surface of the limit frame 501, the connecting block 602 and the limit frame 501 are connected by a tension spring, and an extrusion ball column 603 matching the upper contact surface 405, the arc contact surface 406 and the lower contact surface 407 is fixedly installed on the inner wall of the connecting block 602, a glue discharge column 604 is fixedly installed on the surface of the support plate 601, a plurality of glue discharge holes 605 are opened on the glue discharge column 604, a glue inlet hole 607 is also fixedly installed on the surface of the support plate 601, a glue liquid channel 606 is opened inside the support plate 601, and the glue discharge column 604, the glue liquid channel 606 and the glue inlet hole 607 are connected, and the other end of the glue inlet hole 607 is connected to an external glue application device.

[0051] In actual application of the embodiment of the present invention, when the thrust block 401 is subjected to the reaction force of the mounting platform 101, as shown in FIG. Figure 2 As shown, from Figure 2 From the front view direction, the arc-shaped contact surface 406 pushes the extrusion ball column 603 to move rightward, and then drives the support plate 601 to move rightward through the connecting block 602. At this time, the support plate 601 no longer supports the display screen. Fig.11 As shown, when the support plate 601 moves, the glue is transported from the glue inlet hole 607 to the glue outlet column 604 through the glue spraying equipment, and seeps out through the glue outlet hole 605 to form droplets. At this time, as the support plate 601 moves, the glue is smeared on the edge of the display screen, thereby achieving the purpose of uniform glue coating.

[0052] like Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Fig. 9As shown, as another preferred embodiment of the present invention, the positioning mechanism 7 also includes a rotating disk 705 rotatably connected to the mounting platform 101, the rotating disk 705 is connected to the mounting platform 101 through a torsion spring 712, and a concentric groove 706, a first proximal groove 707 and a second proximal groove 708 are provided on the surface of the rotating disk 705, and contact columns 704 are fixedly installed on the surfaces of the right-angle positioning plate 701, the first spring block 702 and the second spring block 703, and the contact columns 704 are respectively in contact with the concentric groove 706, the first proximal groove 707 and the second proximal groove 708, and the same The trajectory radius of the concentric groove 706 remains unchanged, and the trajectory radius of the first proximal groove 707 and the second proximal groove 708 is continuously reduced. The interior of the rotating disk 705 is respectively provided with three down ramps 709, an inclined ramp 710 and an up ramp 711 which cooperate with the contact column 704, and the down ramp 709, the inclined ramp 710 and the up ramp 711 are sequentially connected. The right-angle positioning plate 701, the first spring block 702 and the second spring block 703 are respectively matched with the concentric groove 706, the second proximal groove 708 and the first proximal groove 707, and the surface of the rotating disk 705 is provided with incomplete teeth.

[0053] In actual application of the embodiment of the present invention, when the external drive is running, such as Figure 4 As shown, at this time, the rotating disk 705 starts to rotate, and the rotation of the rotating disk 705 drives the contact column 704 to move, as shown in FIG. Figure 1 and Figure 5 As shown, due to the limiting effect of the first linear groove 102, the second linear groove 103 and the right-angle groove 104 and the trajectory effect of the concentric groove 706, the first proximal groove 707 and the second proximal groove 708, the rotation of the rotating disk 705 drives the first spring block 702 and the second spring block 703 to move laterally along the first linear groove 102 and the second linear groove 103. Since the trajectory radius of the concentric groove 706 remains unchanged, the right-angle positioning plate 701 will not move laterally. Figure 6 , Figure 7 and Fig. 9 As shown, through the action of the down ramp 709, the inclined ramp 710 and the up ramp 711, the contact column 704 moves upward to drive the right-angle positioning plate 701, the first spring block 702 and the second spring block 703 to extend from the mounting platform 101. Since the tracks cooperate simultaneously, the right-angle positioning plate 701 stops moving after being extended, while the first spring block 702 and the second spring block 703 move laterally after being extended. At this time, the first spring block 702 and the second spring block 703 push the shell to contact and clamp the right-angle positioning plate 701 to complete the positioning of the shell, thereby achieving automatic and rapid positioning, and does not affect the unloading of the assembled shell after resetting, thereby improving the production quality of the shell.

[0054] like Figure 1 and Figure 4As shown, as another preferred embodiment of the present invention, the device also includes a driving mechanism 8, the driving mechanism 8 includes a driving motor 801 fixedly mounted on the mounting platform 101, the output end of the driving motor 801 passes through the mounting platform 101 and is rotatably connected to the mounting platform 101, the output end of the driving motor 801 is fixedly mounted with a rotating screw 802, the rotating screw 802 and the limit frame 501 form a spiral pair transmission, the output end of the driving motor 801 is coaxially fixedly mounted with a driving gear 803, and the driving gear 803 is meshed with the rotating disk 705.

[0055] In practical application, the embodiment of the present invention is as follows: Figure 4 As shown, when the display screen is installed, the driving motor 801 starts to run, and the operation of the driving motor 801 drives the rotating screw 802 and the driving gear 803 to rotate synchronously. The rotation of the rotating screw 802 drives the limit frame 501 to move downward, and the rotation of the driving gear 803 drives the rotating disk 705 to rotate, thereby completing the positioning and assembly of the housing and the display screen.

[0056] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tablet computer display screen assembly limit matching device, characterized in that: The device comprises: The main frame (1) comprises a mounting platform (101) arranged on the main frame (1), and the mounting platform (101) is provided with a first straight groove (102), a second straight groove (103) and a right-angle groove (104); The suction cup mechanism (2) comprises four negative pressure suction cups (201) mounted on the mounting platform (101), one end of the negative pressure suction cup (201) being connected to an external negative pressure device; Moving mechanism (3): used for driving the negative pressure suction cup (201) to approach the display screen; The back pressure mechanism (4) is used to cooperate with the support mechanism (6) to release the support for the display screen; Limiting mechanism (5): used for limiting the display screen; The positioning mechanism (7) comprises a right-angle positioning plate (701), a first spring block (702) and a second spring block (703) for limiting the position of the housing. The right-angle positioning plate (701), the first spring block (702) and the second spring block (703) are respectively in contact with the right-angle groove (104), the first straight groove (102) and the second straight groove (103) in a one-to-one correspondence.

2. A tablet computer display screen assembly limiting matching device according to claim 1, characterized in that: The moving mechanism (3) comprises a sliding plate (301) which is slidably connected to the two negative pressure suction cups (201); two moving rods (302) are fixedly mounted on the surface of the sliding plate (301); each moving rod (302) is in contact with a back pressure plate (304); the back pressure plate (304) is fixedly mounted on the surface of the mounting platform (101); the surface of the sliding plate (301) is connected to the limiting mechanism (5) via a compression spring (303); the back pressure plate (304) is provided with an upper straight surface (305) and a slope surface (306) which cooperate with the moving rods (302); (306) and a lower straight surface (307), a bending plate (308) is fixedly installed on the surface of the negative pressure suction cup (201), the bending plate (308) is connected to the sliding plate (301) through a return spring, and the surface of the bending plate (308) is provided with a lower sliding section (309), a bending section (310), and an upper sliding section (311) which cooperate with two sliding wheels (313), and the two sliding wheels (313) are rotatably installed on the surface of a movable sliding rod (312), and the movable sliding rod (312) passes through the limiting mechanism (5) and is slidably connected to the limiting mechanism (5).

3. The tablet computer display screen assembly limiting matching device according to claim 2, characterized in that: The back pressure mechanism (4) comprises an L-shaped rack (404) fixedly mounted on the bending section (310), the L-shaped rack (404) meshing with the rotating gear (403), a movable slide bar (312) fixedly mounted on the surface of the L-shaped rack (404), the rotating gear (403) being rotationally connected to the limiting mechanism (5), the rotating gear (403) meshing with the thrust rack (402), the thrust rack (402) being slidingly connected to the limiting mechanism (5), a thrust block (401) fixedly mounted on the surface of the thrust rack (402), and an upper contact surface (405), an arc-shaped contact surface (406) and a lower contact surface (407) cooperating with the supporting mechanism (6) being provided on the thrust block (401).

4. The tablet computer display screen assembly limiting matching device according to claim 3, characterized in that: The limiting mechanism (5) comprises a limiting frame (501) slidably connected to the mounting platform (101); the surface of the sliding plate (301) is connected to the limiting frame (501) via a compression spring (303); the movable sliding rod (312) passes through the limiting frame (501) and is slidably connected to the limiting frame (501); the rotating gear (403) is rotatably connected to the limiting frame (501); the thrust rack (402) is slidably connected to the limiting frame (501); and the sliding plate (301) is slidably connected to the limiting frame (501).

5. The tablet computer display screen assembly limiting matching device according to claim 4, characterized in that: The support mechanism (6) comprises a support plate (601) mounted on a limit frame (501); a connection block (602) is fixedly mounted on the surface of the support plate (601); the connection block (602) is slidably connected to the surface of the limit frame (501); the connection block (602) and the limit frame (501) are connected via a tension spring; and a contact surface (405), an arc-shaped contact surface (406) and a lower contact surface (407) are fixedly mounted on the inner wall of the connection block (602). The support plate (601) is provided with an extruded ball column (603), a glue outlet column (604) is fixedly mounted on the surface of the support plate (601), a plurality of glue outlet holes (605) are provided on the glue outlet column (604), a glue inlet hole (607) is also fixedly mounted on the surface of the support plate (601), a glue liquid channel (606) is provided inside the support plate (601), and the glue outlet column (604), the glue liquid channel (606) and the glue inlet hole (607) are connected, and the other end of the glue inlet hole (607) is connected to an external glue application device.

6. The tablet computer display screen assembly limiting matching device according to claim 4, characterized in that: The positioning mechanism (7) further comprises a rotating disk (705) rotatably connected to the mounting platform (101), the rotating disk (705) being connected to the mounting platform (101) via a torsion spring (712), a concentric groove (706), a first proximal groove (707) and a second proximal groove (708) being provided on the surface of the rotating disk (705), and contact pillars (704) being fixedly mounted on the surfaces of the right-angle positioning plate (701), the first spring block (702) and the second spring block (703), and the contact pillars (704) are in contact with the concentric groove (706), the first proximal groove (707) and the second proximal groove (708) respectively, and the track of the concentric groove (706) The trajectory radius remains unchanged, and the trajectory radius of the first proximal groove (707) and the second proximal groove (708) is continuously reduced. The interior of the rotating disk (705) is respectively provided with three down ramps (709), an inclined ramp (710) and an up ramp (711) which are matched with the contact column (704), and the down ramps (709), the inclined ramps (710) and the up ramps (711) are sequentially connected. The right-angle positioning plate (701), the first spring block (702) and the second spring block (703) are respectively matched with the concentric groove (706), the second proximal groove (708) and the first proximal groove (707) in one-to-one correspondence, and the surface of the rotating disk (705) is provided with incomplete teeth.

7. The tablet computer display screen assembly limiting matching device according to claim 6, characterized in that: The device further comprises a driving mechanism (8), the driving mechanism (8) comprising a driving motor (801) fixedly mounted on the mounting platform (101), the output end of the driving motor (801) passing through the mounting platform (101) and being rotatably connected to the mounting platform (101), a rotating screw rod (802) being fixedly mounted on the output end of the driving motor (801), the rotating screw rod (802) and the limiting frame (501) forming a helical pair transmission, a driving gear (803) being coaxially fixedly mounted on the output end of the driving motor (801), and the driving gear (803) being meshed with the rotating disk (705).

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