A tablet computer display assembly limiting and mating device

Abstract

The present invention discloses a tablet computer display assembly limiting and matching device related to the technical field of display assembly. The device includes a main body frame: which includes a mounting table provided on the main body frame, and a first linear groove, a second linear groove, and a right-angle groove are opened on the mounting table; the suction cup mechanism includes four negative pressure suction cups installed on the mounting table, and one end of the negative pressure suction cup is connected to an external negative pressure device; the moving mechanism is used to drive the negative pressure suction cup to approach the display screen; the right-angle positioning plate, the first spring block, and the second spring block protrude from the lower part of the mounting table, and 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 linear groove, and the second linear groove respectively towards the central axis of the positioning mechanism, so as to quickly position and fix the outer shell, so as to achieve that after the display screen assembly is completed, the limit on the outer shell is quickly released through the reset of the mechanism, avoiding the phenomenon of scratching during the blanking of the outer shell.

Description

Technical Field

[0001] The present invention relates to the technical field of display assembly, and particularly to a limit fitting device for assembling a tablet computer display screen. 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 work. Through the use of tablet computers, operations such as work, shopping, and video can be carried out. Because tablet computers are more portable than traditional computers and laptops, people will choose to use tablet computers when traveling daily.

[0003] At present, when manufacturing tablet computers, it is necessary to assemble the outer shell and the display screen. Currently, the commonly used assembly equipment is to manually place the outer shell in a special mold, and use a suction cup to adsorb the display screen and assemble it with the outer shell. However, this equipment is loaded and unloaded manually during use, and when taking the parts after assembly, it is easy to cause friction between the outer shell and the mold, greatly affecting the product quality.

[0004] Based on this, the present invention designs a limit fitting device for assembling a tablet computer display screen to solve the above problems. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a limit fitting device for assembling a tablet computer display screen, aiming to solve the technical problems existing in the prior art mentioned in the background art.

[0006] The embodiments of the present invention are implemented as follows. A limit fitting device for assembling a tablet computer display screen, the device comprising:

[0007] Main body frame: including a mounting table provided on the main body frame, and a first linear groove, a second linear groove, and a right-angle groove are formed on the mounting table;

[0008] Suction cup mechanism: including four negative pressure suction cups mounted on the mounting table, and one end of the negative pressure suction cup is connected to an external negative pressure device;

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

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

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

[0012] Positioning mechanism: including a right-angle positioning plate, a first spring block, and a second spring block for limiting the outer shell, and the right-angle positioning plate, the first spring block, and the second spring block are respectively in contact with the right-angle groove, the first linear groove, and the second linear groove in one-to-one correspondence.

[0013] Further, the moving mechanism includes a sliding plate that is slidably connected to both 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 counter-pressure plate. The counter-pressure plate is fixedly installed on the surface of the mounting table. The surface of the sliding plate is connected to the limiting mechanism through a compression spring. The counter-pressure plate is provided with an upper straight surface, a ramp surface, and a lower straight surface that cooperate with the moving rods. A bent plate is fixedly installed on the surface of the negative pressure suction cup. The bent plate is connected to the sliding plate through a return spring. The surface of the bent plate is provided with a lower sliding section, a bent section, and an upper sliding section that cooperate with the two sliding wheels. Both sliding wheels are rotatably installed on the surface of the moving sliding rod. The moving sliding rod penetrates through the limiting mechanism and is slidably connected to the limiting mechanism.

[0014] Furthermore, the counter-pressure mechanism includes an L-shaped rack fixedly installed on the bent section. The L-shaped rack meshes with a rotating gear. A moving sliding rod is fixedly installed on the surface of the L-shaped rack. The rotating gear is rotatably connected to the limiting mechanism. The rotating gear meshes with a thrust rack. The thrust rack is slidably connected to the limiting mechanism. A thrust block is fixedly installed on the surface of the thrust rack. The thrust block is provided with an upper contact surface, an arc contact surface, and a lower contact surface that cooperate with the supporting mechanism.

[0015] Furthermore, the limiting mechanism includes a limiting frame that is slidably connected to the mounting table. The surface of the sliding plate is connected to the limiting frame through a compression spring. The moving sliding rod penetrates 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. The sliding plate is slidably connected to the limiting frame.

[0016] Furthermore, the supporting mechanism includes a supporting plate installed on the limiting 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 limiting frame. The connecting block and the limiting frame are connected through a tension spring. And an extrusion ball column that cooperates with 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 outlet column is fixedly installed on the surface of the supporting plate. A plurality of glue outlet holes are opened on the glue outlet column. A glue inlet hole is also fixedly installed on the surface of the supporting plate. A glue liquid channel is opened inside the supporting plate. And the glue outlet column, the glue liquid channel, and the glue inlet hole are communicated. The other end of the glue inlet hole is connected to an external glue application device.

[0017] Further, the positioning mechanism further includes a rotating disk rotatably connected to the mounting table. The rotating disk is connected to the mounting table through a torsion spring. Concentric grooves, a first near-center groove, and a second near-center groove are formed 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 near-center groove, and the second near-center groove. The track radius of the concentric groove remains unchanged, while the track radii of the first near-center groove and the second near-center groove continuously decrease. Three downhill ramps, ramp roads, and uphill ramps that cooperate with the contact columns are respectively formed inside the rotating disk, and the downhill ramps, ramp roads, and uphill ramps are sequentially connected. The right-angle positioning plate, the first spring block, and the second spring block respectively cooperate with the concentric groove, the second near-center groove, and the first near-center groove in a one-to-one correspondence. Incomplete teeth are provided on the surface of the rotating disk.

[0018] Further, the device further includes a driving mechanism. The driving mechanism includes a driving motor fixedly installed on the mounting table. The output end of the driving motor penetrates through the mounting table and is rotatably connected to the mounting table. A rotating lead screw is fixedly installed at the output end of the driving motor. The rotating lead screw forms a screw pair transmission with the limiting frame. A driving gear is coaxially and fixedly installed at the output end of the driving motor, and the driving gear meshes with the rotating disk.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] 1. In the present invention, the right-angle positioning plate, the first spring block, and the second spring block extend from below the mounting table. At the same time, the right-angle positioning plate, the first spring block, and the second spring block respectively slide along the right-angle groove, the first straight groove, and the second straight groove towards the central axis of the positioning mechanism, thereby quickly positioning and fixing the outer shell. After the assembly of the display screen is completed, the limit on the outer shell is quickly released through the reset of the mechanism, avoiding the phenomenon of scratching the outer shell during blanking.

[0021] 2. After the support mechanism no longer blocks the display screen, at this time, a reaction force is generated on the anti-pressure mechanism through the mounting table. Then, the anti-pressure mechanism drives the negative pressure suction cup to continue moving 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 at the same time, the external drive moves in the reverse direction, driving the mechanism to reset, thus completing the rapid automatic installation of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of a tablet computer display screen assembly limiting and cooperating device provided by an embodiment of the present invention;

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

[0024] Figure 3 For the present inventionFigure 2 Schematic diagram of the enlarged structure at position A;

[0025] Figure 4 Another perspective cross-sectional structure diagram of a tablet computer display assembly limit fitting device of the present invention;

[0026] Figure 5 Partial cross-sectional structure diagram of the rotating disk of the present invention;

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

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

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

[0030] Figure 9 For the present invention Figure 8 Schematic diagram of the enlarged structure at position D;

[0031] Figure 10 Another perspective cross-sectional structure diagram of a tablet computer display assembly limit fitting device;

[0032] Figure 11 For the present invention Figure 10 Schematic diagram of the enlarged structure at position E.

[0033] In the attached drawings: 1. Main body frame; 101. Installation table; 102. First linear groove; 103. Second linear groove; 104. Right-angle groove; 2. Suction cup mechanism; 201. Negative pressure suction cup; 3. Moving mechanism; 301. Slide plate; 302. Moving rod; 303. Compression spring; 304. Counter-pressure plate; 305. Upper straight surface; 306. Slope surface; 307. Lower straight surface; 308. Bending plate; 309. Lower sliding section; 310. Bending section; 311. Upper sliding section; 312. Moving slide bar; 313. Slide wheel; 4. Counter-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. Support plate; 602. Connecting block; 603. Extrusion ball column; 604. Glue outlet column; 605. Glue outlet hole; 606. Glue liquid 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 near-center groove; 708. Second near-center groove; 709. Downhill ramp; 710. Slope ramp; 711. Uphill ramp; 712. Torsion spring; 8. Driving mechanism; 801. Driving motor; 802. Rotating lead screw; 803. Driving gear. Detailed implementation manners

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] It can be understood that the terms "first", "second", etc. used in this application can be used herein 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] As Figure 1 、 Figure 3 、 Figure 5 and Figure 8 shown, in one embodiment, a tablet computer display assembly limiting and mating device is proposed. The device includes:

[0037] Main body frame 1: including an installation table 101 provided on the main body frame 1, and a first linear groove 102, a second linear groove 103 and a right-angle groove 104 are opened on the installation table 101;

[0038] Suction cup mechanism 2: including four negative pressure suction cups 201 installed on the installation table 101, and 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 close to the display screen;

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

[0041] Limit 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 outer shell. The right-angle positioning plate 701, the first spring block 702, and the second spring block 703 are respectively in one-to-one contact with the right-angle groove 104, the first linear groove 102, and the second linear groove 103.

[0043] In the actual application of the embodiment of the present invention, when assembling the display screen, at this time, the display screen is placed on the support mechanism 6 through an external conveying device, and at the same time, the outer shell is placed on the installation table 101 through an external clamping device. As Figure 1 、 Figure 5 and Figure 8 shown, at this time, under the action of an external drive, the right-angle positioning plate 701, the first spring block 702, and the second spring block 703 are driven to extend from below the installation table 101. 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 linear groove 102, and the second linear groove 103 respectively towards the central axis of the positioning mechanism 7, so as to quickly position and fix the outer shell. Thus, after the assembly of the display screen is completed, the limit on the outer shell is quickly released through the reset of the mechanism, avoiding the phenomenon of scratching during the unloading of the outer shell. At the same time, the external drive drives the limit mechanism 5 to move downward. As the limit mechanism 5 moves downward, as Figure 3 shown, through the combined action of the moving mechanism 3, the back pressure mechanism 4, and the support mechanism 6, the negative pressure suction cup 201 is first driven to move above the display screen and then close to the display screen. Negative pressure is generated by an external negative pressure device to adsorb the display screen on the negative pressure suction cup 201. At this time, as the limit mechanism 5 continues to move downward, the support mechanism 6 no longer supports and blocks the display screen, and at the same time, glue is evenly applied to the edge of the display screen. When the support mechanism 6 no longer blocks the display screen, at this time, a reaction force is generated on the back pressure mechanism 4 by the installation table 101, and then the back pressure mechanism 4 drives the negative pressure suction cup 201 to continue to move downward relative to the limit mechanism 5. At this time, the display screen is installed on the outer shell through the pressing action of the negative pressure suction cup 201. When the assembly is completed, at this time, the negative pressure of the negative pressure device disappears, and at the same time, the external drive moves in the reverse direction, driving the mechanism to reset, thus completing the rapid automatic installation of the display screen.

[0044] As 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 both negative pressure suction cups 201. Two moving rods 302 are fixedly installed on the surface of the sliding plate 301. Each moving rod 302 is in contact with a counter pressure plate 304. The counter pressure plate 304 is fixedly installed on the surface of the mounting table 101. The surface of the sliding plate 301 is connected to the limiting mechanism 5 through a compression spring 303. The counter pressure plate 304 is provided with an upper straight surface 305, a slope surface 306, and a lower straight surface 307 that cooperate with the moving rods 302. 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. 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. Both sliding wheels 313 are rotatably installed on the surface of the moving sliding rod 312. The moving sliding rod 312 penetrates through the limiting mechanism 5 and is slidably connected to the limiting mechanism 5.

[0045] In actual application of the embodiment of the present invention, after the display screen is conveyed to the support mechanism 6, when the limiting mechanism 5 moves downward, as Figure 2 shown, from Figure 2Viewed from the front, at this time, the moving rod 302 slides along the surface of the anti-pressure plate 304. As the moving rod 302 moves downward and passes through the upper straight surface 305, the inclined surface 306, and the lower straight surface 307, under the extrusion of the inclined surface 306, the sliding plates 301 at both ends are driven to move towards each other, thereby driving the negative pressure suction cups 201 to move above the display screen. At the same time, the negative pressure suction cups 201 drive the bending plate 308 to move synchronously. At this time, the sliding wheel 313 moves through the lower sliding section 309 and the bending section 310 to the upper sliding section 311. Due to the limiting effect of the sliding wheel 313, when the sliding wheel 313 moves to the bending section 310, it exerts a downward extrusion on the bending section 310, so that the negative pressure suction cups 201 at both ends move towards each other and approach the display screen downward at the same time. When the sliding wheel 313 moves onto the upper sliding section 311, at this time, the negative pressure suction cups 201 are 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 adsorbs the display screen. Since the suction cup will cause slight deformation at the position between the suction cup and the display screen during the adsorption process, and at this time, the display screen is in a suspended state, it avoids the surface of the display screen being scratched by friction when the later support mechanism 6 moves. At the same time, the limiting effect of the limiting mechanism 5 prevents the display screen from shifting, so as to achieve the purpose of automatically fixing the display screen. When the limiting mechanism 5 continues to move downward, at this time, through the reaction of the mounting table 101 on the anti-pressure mechanism 4, the support mechanisms 6 at both ends move in opposite directions, and at the same time, the support mechanisms 6 apply glue to the surface of the display screen, so that it no longer supports the display screen and will not interfere with the subsequent downward movement of the display screen. When the support mechanism 6 finishes moving, at this time, under the action of the anti-pressure mechanism 4, the moving slide rod 312 is driven to move downward. The downward movement of the moving slide rod 312 squeezes the bending plate 308 to drive the negative pressure suction cup 201 to move downward, so as to dock and cooperate the display screen with the lower housing, thus completing the rapid installation of the display screen.

[0046] As Figure 2 shown, as another preferred embodiment of the present invention, the anti-pressure mechanism 4 includes an L-shaped rack 404 fixedly installed on the bending section 310. The L-shaped rack 404 meshes with the rotating gear 403. A moving slide rod 312 is fixedly installed on the surface of the L-shaped rack 404. The rotating gear 403 is rotatably connected to the limiting mechanism 5. The rotating gear 403 meshes with the thrust rack 402. The thrust rack 402 is slidably connected to the limiting mechanism 5. A thrust block 401 is fixedly installed on the surface of the thrust rack 402. The thrust block 401 is provided with an upper contact surface 405, an arc contact surface 406, and a lower contact surface 407 that cooperate with the support mechanism 6.

[0047] In the 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 at this time, the thrust block 401 contacts the mounting table 101. At this time, under the reaction force of the mounting table 101, the thrust block 401 is pushed upward. 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, at this time, the thrust rack 402 meshes with the rotating gear 403, and drives the L-shaped rack 404 to move downward through the gear-rack transmission, and then drives the negative pressure suction cup 201 to move 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 to cooperate and assemble with the housing, so as to achieve the purpose of rapid and stable assembly.

[0048] As Figure 1 and Figure 2 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 moving 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. The sliding plate 301 is slidably connected to the limiting frame 501.

[0049] In the actual application of the embodiment of the present invention, when the display screen is placed on the support mechanism 6, at this time, the limiting frame 501 is driven by an external drive to slide vertically downward along the mounting table 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, it is possible to prevent the negative pressure suction cup 201 from having a slight deformation when adsorbing the display screen, resulting in inaccurate positioning of the display screen. Therefore, the limiting function of the display screen is completed through the limiting frame 501.

[0050] As Figure 2 、 Figure 10 and Figure 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 connection block 602 is fixedly installed 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 by a tension spring. And an extrusion ball column 603 that cooperates with 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 connection block 602. An adhesive outlet column 604 is fixedly installed on the surface of the support plate 601. A plurality of adhesive outlet holes 605 are formed in the adhesive outlet column 604. An adhesive inlet hole 607 is also fixedly installed on the surface of the support plate 601. A glue liquid channel 606 is formed inside the support plate 601. And the adhesive outlet column 604, the glue liquid channel 606, and the adhesive inlet hole 607 are communicated. The other end of the adhesive inlet hole 607 is connected to an external glue application device.

[0051] In the actual application of the embodiment of the present invention, when the thrust block 401 receives the reaction force from the mounting table 101, as Figure 2 shown, when viewed from the front direction of Figure 2 , at this time, the extrusion ball column 603 is pushed to move to the right through the action of the arc contact surface 406, and then the support plate 601 is driven to move to the right through the connection block 602. At this time, the support plate 601 no longer supports the display screen, as Figure 11 shown. At the same time, when the support plate 601 moves, the glue application device transports glue liquid into the adhesive outlet column 604 from the adhesive inlet hole 607, and the glue liquid seeps out through the adhesive outlet holes 605 to form liquid drops. At this time, as the support plate 601 moves, the glue liquid is smeared on the edge of the display screen, so as to achieve the purpose of uniform glue application.

[0052] Such as Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 9As shown, as another preferred embodiment of the present invention, the positioning mechanism 7 further includes a rotating disk 705 rotatably connected to the mounting table 101. The rotating disk 705 is connected to the mounting table 101 through a torsion spring 712. Concentric grooves 706, first near-center grooves 707 and second near-center grooves 708 are formed on the surface of the rotating disk 705. Contact posts 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 posts 704 are respectively in contact with the concentric grooves 706, the first near-center grooves 707 and the second near-center grooves 708. The track radius of the concentric grooves 706 remains unchanged, and the track radii of the first near-center grooves 707 and the second near-center grooves 708 continuously decrease. Three downhill ramps 709, ramp ramps 710 and uphill ramps 711 that cooperate with the contact posts 704 are respectively formed inside the rotating disk 705, and the downhill ramps 709, the ramp ramps 710 and the uphill ramps 711 are sequentially connected. The right-angle positioning plate 701, the first spring block 702 and the second spring block 703 respectively cooperate with the concentric grooves 706, the second near-center grooves 708 and the first near-center grooves 707 in a one-to-one correspondence. The surface of the rotating disk 705 is provided with non-complete teeth.

[0053] In the actual application of the embodiment of the present invention, when driven by the outside world during operation, such as Figure 4 shown, at this time, the rotating disk 705 is driven to start rotating. The rotation of the rotating disk 705 drives the contact posts 704 to move, as Figure 1 and Figure 5 shown. Due to the limiting effects of the first straight groove 102, the second straight groove 103 and the right-angle groove 104 and the track effects of the concentric grooves 706, the first near-center grooves 707 and the second near-center grooves 708, at this time, the rotation of the rotating disk 705 drives the first spring block 702 and the second spring block 703 to move horizontally along the first straight groove 102 and the second straight groove 103. Since the track radius of the concentric grooves 706 remains unchanged, the right-angle positioning plate 701 will not move horizontally, as Figure 6 , Figure 7 and Figure 9 shown. At the same time, through the effects of the downhill ramps 709, the ramp ramps 710 and the uphill ramps 711, the upward movement of the contact posts 704 drives the right-angle positioning plate 701, the first spring block 702 and the second spring block 703 to protrude from the mounting table 101. Due to the simultaneous cooperation of the tracks, after the right-angle positioning plate 701 protrudes, it will no longer move, while after the first spring block 702 and the second spring block 703 protrude, they will move horizontally. At this time, the first spring block 702 and the second spring block 703 push the outer shell to contact and clamp with the right-angle positioning plate 701 to complete the positioning of the outer shell, thereby achieving automatic and rapid positioning, and not affecting the blanking of the assembled outer shell after resetting, improving the production quality of the outer shell.

[0054] Such as Figure 1 and Figure 4As shown, as another preferred embodiment of the present invention, the device further includes a driving mechanism 8. The driving mechanism 8 includes a driving motor 801 fixedly installed on the mounting table 101. The output end of the driving motor 801 penetrates through the mounting table 101 and is rotatably connected to the mounting table 101. A rotating lead screw 802 is fixedly installed at the output end of the driving motor 801. The rotating lead screw 802 forms a helical pair transmission with the limiting frame 501. A driving gear 803 is coaxially fixedly installed at the output end of the driving motor 801. The driving gear 803 meshes with the rotating disk 705.

[0055] In the actual application of the embodiment of the present invention, as Figure 4 shown, when installing the display screen, at this time the driving motor 801 starts to operate. The operation of the driving motor 801 drives the rotating lead screw 802 and the driving gear 803 to rotate synchronously. The rotation of the rotating lead screw 802 drives the limiting 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 can be combined arbitrarily. For the sake of brevity of description, 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, it should be considered as the scope described in this specification.

[0057] The above-described embodiments only represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

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

Claims

1. A tablet computer display screen assembly limiting and mating device, characterized in that The device includes: A main body frame (1), including a mounting table (101) provided on the main body frame (1), and a first linear groove (102), a second linear groove (103) and a right-angle groove (104) are formed on the mounting table (101); A suction cup mechanism (2): including four negative pressure suction cups (201) mounted on the mounting table (101), and one end of the negative pressure suction cup (201) is connected to an external negative pressure device; A moving mechanism (3) for driving the negative pressure suction cup (201) to approach the display screen. The moving mechanism (3) includes a sliding plate (301) slidably connected to both negative pressure suction cups (201). Two moving rods (302) are fixedly installed on the surface of the sliding plate (301). Each moving rod (302) contacts an anti-pressure plate (304). The anti-pressure plate (304) is fixedly installed on the surface of the mounting table (101). The surface of the sliding plate (301) is connected to a limiting mechanism (5) through a compression spring (303). The anti-pressure plate (304) is provided with an upper straight surface (305), a slope surface (306) and a lower straight surface (307) that cooperate with the moving rod (302). 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. 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). Both sliding wheels (313) are rotatably installed on the surface of a moving slide rod (312). The moving slide rod (312) penetrates through the limiting mechanism (5) and is slidably connected to the limiting mechanism (5); An anti-pressure mechanism (4) for cooperating with a support mechanism (6) to release the support on the display screen. The anti-pressure mechanism (4) includes an L-shaped rack (404) fixedly installed on the bending section (310). The L-shaped rack (404) meshes with a rotating gear (403). A moving slide rod (312) is fixedly installed on the surface of the L-shaped rack (404). The rotating gear (403) is rotatably connected to the limiting mechanism (5). The rotating gear (403) meshes with a thrust rack (402). The thrust rack (402) is slidably connected to the limiting mechanism (5). A thrust block (401) is fixedly installed on the surface of the thrust rack (402). The thrust block (401) is provided with an upper contact surface (405), an arc contact surface (406) and a lower contact surface (407) that cooperate with the support mechanism (6); A limiting mechanism (5): for limiting the display screen. 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 moving slide rod (312) penetrates 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). The sliding plate (301) is slidably connected to the limiting frame (501); The positioning mechanism (7) includes a right-angled positioning plate (701) for limiting the housing, a first spring block (702) and a second spring block (703). The right-angled positioning plate (701), the first spring block (702) and the second spring block (703) are respectively in contact with the right-angled groove (104), the first linear groove (102) and the second linear groove (103) in a one-to-one correspondence.

2. The limit fitting device for assembling a tablet computer display screen according to claim 1, wherein, 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. An extrusion ball column (603) that cooperates with 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). An adhesive outlet column (604) is fixedly installed on the surface of the support plate (601). A plurality of adhesive outlet holes (605) are formed in the adhesive outlet 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 formed inside the support plate (601). The adhesive outlet column (604), the glue liquid channel (606) and the glue inlet hole (607) are connected in communication. The other end of the glue inlet hole (607) is connected to an external glue application device.

3. A tablet computer display assembly limit fitting device according to claim 1, characterized in that The positioning mechanism (7) further includes a rotating disk (705) rotatably connected to the mounting table (101). The rotating disk (705) is connected to the mounting table (101) by a torsion spring (712). Concentric grooves (706), a first near-center groove (707) and a second near-center groove (708) are formed on the surface of the rotating disk (705). Contact columns (704) are fixedly installed on the surfaces of the right-angled positioning plate (701), the first spring block (702) and the second spring block (703). The contact columns (704) are respectively in contact with the concentric groove (706), the first near-center groove (707) and the second near-center groove (708). The track radius of the concentric groove (706) remains unchanged, and the track radii of the first near-center groove (707) and the second near-center groove (708) continuously decrease. Three downhill slopes (709), ramp slopes (710) and uphill slopes (711) that cooperate with the contact columns (704) are respectively formed inside the rotating disk (705). The downhill slopes (709), the ramp slopes (710) and the uphill slopes (711) are connected in sequence. The right-angled positioning plate (701), the first spring block (702) and the second spring block (703) are respectively in one-to-one correspondence and cooperation with the concentric groove (706), the second near-center groove (708) and the first near-center groove (707). Non-complete teeth are provided on the surface of the rotating disk (705).

4. The a tablet computer display screen assembly limit matching device according to claim 3, characterized in that, The device further includes a driving mechanism (8). The driving mechanism (8) includes a driving motor (801) fixedly installed on the installation table (101). The output end of the driving motor (801) penetrates through the installation table (101) and is rotatably connected to the installation table (101). A rotating lead screw (802) is fixedly installed at the output end of the driving motor (801). The rotating lead screw (802) forms a helical pair drive with the limit frame (501). A driving gear (803) is coaxially fixedly installed at the output end of the driving motor (801). The driving gear (803) meshes with the rotating disk (705).

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