Press fit mechanism and assembly equipment

Abstract

The utility model discloses a press fit mechanism and assembling equipment wherein the press fit mechanism comprises a press fit assembly and a clamping assembly, the press fit assembly comprises a first driving part, a substrate part and a pre-pressing plate, and the output end of the first driving part is connected with the substrate part; the pre-pressing plate is in sliding connection with the base plate component, and the pre-pressing plate is elastically connected with the base plate component; the clamping assembly comprises a second driving piece and a suction cup clamp, the first driving piece is used for driving the suction cup clamp to move in the first direction to stretch out of the through hole, and the suction cup clamp is used for adsorbing the structural part. According to the technical scheme, the clamping assembly and the pressing assembly are combined through the substrate part, the three actions of adsorption, counterpoint attachment and pressing of a product can be completed, the overall structure is more compact, the production takt of the product is shortened, the problem that a screen and a shell are not firmly bonded due to untimely pre-pressing is solved, and the production efficiency is improved. The production efficiency of products is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen laminating pre-pressing equipment, in particular to a pressing mechanism and assembling equipment. Background Art

[0002] At present, the assembly of most display screens includes the process of glue dispensing and laminating, in which the screen and the shell are assembled by glue. Since different types of glue have different solidification speeds, in the assembly process, in order to prevent the solidification of the glue dispensing, the screen and the shell need to be aligned, bonded and pre-pressed in a short time. The separation of existing laminating equipment and pre-pressing equipment occupies a large production space, making the product production cycle longer, and easily leading to untimely pre-pressing, resulting in the screen and the shell not being firmly bonded, so that there is a risk of the screen opening or even falling off during use. Utility Model Content

[0003] The main purpose of the utility model is to provide a pressing mechanism and an assembly device, aiming to solve the problem that the existing laminating equipment and the pre-pressing equipment are separated and occupy a large production space, which makes the product production cycle longer and easily leads to untimely pre-pressing resulting in loose bonding between the screen and the shell.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a pressing mechanism, which comprises:

[0005] A pressing assembly, the pressing assembly comprises a first driving member, a substrate member and a pre-pressing plate, the output end of the first driving member is connected to the substrate member; the pre-pressing plate is arranged below the substrate member, the pre-pressing plate is slidably connected to the substrate member, and the pre-pressing plate and the substrate member are elastically connected; a through hole is arranged on the pre-pressing plate, the pre-pressing plate is provided with a cavity matching the structural member, and the pre-pressing plate is used to press the structural member;

[0006] A clamping assembly, the clamping assembly includes a second driving member and a suction cup clamp, the second driving member is connected to the substrate component, the output end of the second driving member is connected to the suction cup clamp, the suction cup clamp is arranged below the substrate component and directly opposite to the through hole, the first driving member is used to drive the suction cup clamp to move along a first direction to extend out of the through hole, and the suction cup clamp is used to adsorb the structural member.

[0007] Optionally, the substrate component includes a first substrate and a second substrate, the first substrate and the second substrate are spaced apart in a direction close to the pre-pressing plate, and a pressure sensor is connected between the first substrate and the second substrate.

[0008] Optionally, the suction cup fixture includes a mounting plate and a suction cup, wherein the mounting plate is connected to an output end of the second driving member; there are multiple suction cups, and the multiple suction cups are evenly distributed along an edge of the mounting plate.

[0009] Optionally, the output end of the second driving member is connected to a transverse plate, and a plurality of connecting columns are arranged on the mounting plate, and the plurality of connecting columns are arranged on both sides of the second driving member and are all connected to the transverse plate.

[0010] Optionally, the connecting column is slidably connected to the substrate component along a first direction.

[0011] Optionally, an elastic member is provided between the pre-pressing plate and the second substrate.

[0012] Optionally, the pressing mechanism also includes a guide column, and the number of the guide columns is multiple, and the multiple guide columns all pass through the first substrate and the second substrate, and are slidably connected to the first substrate and / or the second substrate; one end of the multiple guide columns is connected to the pre-pressing plate, and the other end of the multiple guide columns is provided with a boss.

[0013] Optionally, the elastic member is a spring, the number of the springs is consistent with the number of the guide posts, and the springs are sleeved on the guide posts in a one-to-one correspondence.

[0014] Optionally, a linear bearing is disposed on the first substrate, and the first substrate is slidably connected to the guide column via the linear bearing; and / or,

[0015] A linear bearing is disposed on the second substrate, and the second substrate is slidably connected to the guide column via the linear bearing.

[0016] The utility model also provides an assembly device for assembling a display screen, wherein the assembly device comprises a pressing mechanism as described in any of the above technical solutions.

[0017] In the embodiment of the utility model, the assembly of the display screen is used as an example for explanation. First, the clamping component is started, and the shell is sucked by the suction cup clamp, and then the shell is aligned and placed on the screen, and then the pressing component is started, and the two shells and the screen are pressed and fixed by the pre-pressing plate; specifically, the clamping component is started first, and the shell is sucked by the suction force of the suction cup clamp, and then adjusted to the corresponding position of the screen, and the shell is aligned and placed on the screen by the suction cup clamp, and then the suction force of the suction cup clamp is closed to separate the suction cup clamp from the shell; the second driving member is started, and the suction cup clamp is driven by the second driving member to move along the first direction to the top of the pre-pressing plate, and the pre-pressing plate is pressed and fixed. The pressing plate is exposed and faces the shell; then the pressing assembly is started, and the substrate component and the pre-pressing plate are driven downward by the first driving member until the cavity of the pre-pressing plate abuts against the shell, and the pre-pressing plate generates pressure on the shell, and starts to press the shell and the screen; since the pre-pressing plate is slidably connected to the substrate component and the pre-pressing plate and the substrate component are elastically connected, the pressure of the pre-pressing plate can be guaranteed to increase linearly, avoiding damage to the shell and the screen caused by excessive instantaneous pressure; the cavity of the pre-pressing plate matches that of the shell, which can ensure that the pressure is accurately transmitted from the pre-pressing plate to all parts of the shell, ensuring uniform force.

[0018] The technical solution of the utility model combines the clamping component with the pressing component by setting a substrate component, thereby improving the utilization rate of the equipment, so that one pressing mechanism can complete the three actions of adsorption, alignment bonding and pressing of the product. Compared with the existing structure in which the bonding equipment and the pre-pressing equipment are separated, the integrated design of the pressing mechanism makes the overall structure more compact, shortens the production cycle of the product, solves the problem of loose bonding between the screen and the shell caused by untimely pre-pressing, improves the production efficiency of the product, and effectively reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 It is a first structural schematic diagram of an embodiment of a pressing mechanism 100 of the utility model;

[0021] Figure 2 It is a right side view of an embodiment of the pressing mechanism 100 of the utility model;

[0022] Figure 3 It is a second structural schematic diagram of an embodiment of the pressing mechanism 100 of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the pre-pressing plate of the pressing mechanism 100 of the utility model;

[0024] Figure 5 It is a schematic structural diagram of the suction cup clamp of the pressing mechanism 100 of the present invention.

[0025] Description of Figure Numbers:

[0026]

[0027]

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] The main purpose of the utility model is to provide a pressing mechanism and an assembly device, aiming to solve the problem that the existing laminating equipment and the pre-pressing equipment are separated and occupy a large production space, which makes the product production cycle longer and easily leads to untimely pre-pressing resulting in loose bonding between the screen and the shell.

[0033] The utility model provides a pressing mechanism.

[0034] like Figures 1 to 4 As shown, the utility model proposes a pressing mechanism 100, the pressing mechanism 100 includes a pressing assembly 2 and a clamping assembly 1, the pressing assembly 2 includes a first driving member 21, a substrate member 22 and a pre-pressing plate 23, the output end of the first driving member 21 is connected to the substrate member 22; the pre-pressing plate 23 is arranged below the substrate member 22, the pre-pressing plate 23 is slidably connected to the substrate member 22, and the pre-pressing plate 23 and the substrate member 22 are elastically connected; the pre-pressing plate 23 is provided with a through hole 231, the pre-pressing plate 23 3 is provided with a cavity 232 matching the structural member, and the pre-pressing plate 23 is used for pressing the structural member; the clamping assembly 1 includes a second driving member 11 and a suction cup clamp 12, the second driving member 11 is connected to the substrate member 22, the output end of the second driving member 11 is connected to the suction cup clamp 12, the suction cup clamp 12 is arranged below the substrate member 22 and facing the through hole 231, the first driving member 21 is used to drive the suction cup clamp 12 to move along the first direction to extend out of the through hole 231, and the suction cup clamp 12 is used to adsorb the structural member.

[0035] In the embodiment of the utility model, the assembly of the display screen is taken as an example for explanation. First, the clamping component 1 is started, and the shell is sucked by the suction cup clamp 12, and then the shell is aligned and fit on the screen, and then the pressing component 2 is started, and the two shells and the screen are pressed and fixed by the pre-pressing plate 23; specifically, the clamping component 1 is started first, and the shell is sucked by the suction force of the suction cup clamp 12, and then adjusted to the corresponding position of the screen, the shell is aligned and fit on the screen by the suction cup clamp 12, and then the suction force of the suction cup clamp 12 is closed to separate the suction cup clamp 12 from the shell; the second driving member 11 is started, and the suction cup clamp 12 is driven by the second driving member 11 to move along the first direction to the top of the pre-pressing plate 23, and the pre-pressing plate 23 is exposed. out and facing the shell; then start the pressing assembly 2, and drive the substrate component 22 and the pre-pressing plate 23 to move downward together through the first driving member 21 until the cavity 232 of the pre-pressing plate 23 abuts against the shell, and the pre-pressing plate 23 generates pressure on the shell, and starts to press the shell and the screen; since the pre-pressing plate 23 is slidably connected to the substrate component 22, and the pre-pressing plate 23 is elastically connected to the substrate component 22, it can ensure that the pressure of the pre-pressing plate 23 increases linearly, avoiding damage to the shell and the screen caused by excessive instantaneous pressure; the cavity 232 of the pre-pressing plate 23 matches that of the shell, which can ensure that the pressure is accurately transmitted from the pre-pressing plate 23 to all parts of the shell, ensuring uniform force.

[0036] The technical solution of the utility model combines the clamping component 1 with the pressing component 2 by setting a substrate component 22, thereby improving the utilization rate of the equipment, so that one pressing mechanism 100 can complete the three actions of adsorption, alignment and lamination of the product. Compared with the existing structure in which the lamination equipment and the pre-pressing equipment are separated, the integrated design of the pressing mechanism 100 makes the overall structure more compact, shortens the production cycle of the product, solves the problem of loose bonding between the screen and the shell due to untimely pre-pressing, improves the production efficiency of the product, and effectively reduces the production cost.

[0037] In this embodiment, the pressing mechanism 100, the shell and the screen are adjusted to corresponding positions in advance to ensure the accuracy of the alignment, fitting and pressing of the shell and the screen; specifically, the two shells and the screen can be moved to the corresponding positions of the pressing mechanism 100 in succession, and then the adsorption, alignment, fitting and pressing actions are completed; the pressing mechanism 100 can also be moved to the corresponding position of a shell to complete the adsorption action, and then the pressing mechanism 100 is moved to the corresponding position of the screen to complete the alignment, fitting and pressing actions; the pressing mechanism 100 can also cooperate with the shell and the screen, for example, the shell is first moved to the corresponding position of the pressing mechanism 100 to complete the adsorption action, and then the pressing mechanism 100 is moved to the corresponding position of the screen to complete the alignment, fitting and pressing actions; this embodiment does not limit the movement method of the pressing mechanism 100 and the shell and the screen.

[0038] like Figure 2 As shown, in one embodiment, the substrate component 22 includes a first substrate 221 and a second substrate 222, and the first substrate 221 and the second substrate 222 are spaced apart in a direction close to the pre-pressing plate 23, and the first substrate 221 and the second substrate 222 are connected via a pressure sensor 223; the first driving member 21 drives the first substrate 221 to move downward, and then drives the second substrate 222 to move downward through the pressure sensor 223, and when the cavity 232 of the pre-pressing plate 23 abuts against the shell, the first driving member 21 generates downward pressure on the first substrate 221, and then transmits it to the second substrate 222 through the pressure sensor 223; by setting the pressure sensor 223, the pressure value of the pressing mechanism 100 during pressing can be monitored in real time, thereby ensuring the production consistency of each product; the initial value of the pressure sensor 223 is zero, and a preset value can be set for the pressure sensor 223 in advance. When the pressure sensor 223 detects that the pressure value is greater than the preset value, it will give an alarm in time to reduce the pressure and prevent product damage.

[0039] like Figure 5As shown, in one embodiment, the suction cup fixture 12 includes a mounting plate 121 and a suction cup 122, and the mounting plate 121 is connected to the output end of the second driving member 11; the number of the suction cups 122 is multiple, and the multiple suction cups 122 are evenly distributed along the edge of the mounting plate 121; the output end of the second driving member 11 is connected to the mounting plate 121, and after the second driving member 11 is started, the suction cup fixture 12 is driven by the second driving member 11 to move along the first direction to the top of the pre-pressing plate 23, so that the pre-pressing plate 23 is exposed at the bottom facing the shell, which is convenient for subsequent pressing work; at the same time, in order to ensure the stability of the suction cup fixture 12 in adsorbing the shell and avoid the shell from deflecting due to uneven suction or falling due to loose suction, a plurality of suction cups 122 are arranged on the mounting plate 121, and the plurality of suction cups 122 are evenly distributed along the edge of the mounting plate 121.

[0040] Based on the above embodiment, the output end of the second driving member 11 is connected to the cross plate 13, and a plurality of connecting columns 14 are arranged on the mounting plate 121. The plurality of connecting columns 14 are arranged on both sides of the second driving member 11 and are all connected to the cross plate 13; the two ends of the connecting column 14 are respectively connected to the cross plate 13 and the mounting plate 121, and the second driving member 11 drives the cross plate 13 to move upward, and the cross plate 13 drives the mounting plate 121 to move upward through the connecting column 14 so that the mounting plate 121 moves to the top of the pre-load plate 23, and the pre-load plate 23 is exposed at the bottom facing the shell; at the same time, in order to ensure the stability of the transmission, a plurality of connecting columns 14 are arranged on the mounting plate 121, and the power transmission between the cross plate 13 and the mounting plate 121 is realized through the plurality of connecting columns 14; the plurality of connecting columns 14 are arranged on both sides of the second driving member 11, so that the mounting plate 121 can be subjected to uniform force, thereby preventing deflection due to uneven force during movement.

[0041] In this embodiment, the second driving member 11 may be a cylinder, which is a standard pneumatic component. This embodiment will not describe its specific structure and function. Other driving modes may also be used, which is not limited in this embodiment.

[0042] Specifically, the connecting column 14 is slidably connected to the substrate component 22 along a first direction; the two ends of the connecting column 14 are respectively connected to the cross plate 13 and the mounting plate 121, and the cross plate 13 drives the mounting plate 121 to move upward through the connecting column 14. In order to increase the transmission stability of the connecting column 14, the connecting column 14 is slidably connected to the substrate component 22 along the first direction, which can reduce the skewness and shaking of the connecting column 14 during the transmission process and improve the transmission accuracy.

[0043] In one embodiment, an elastic member 24 is arranged between the pre-pressing plate 23 and the second substrate 222; when the cavity 232 of the pre-pressing plate 23 abuts against the shell, the first driving member 21 continuously drives the first substrate 221 to move downward, and the first substrate 221 and the second substrate 222 begin to generate pressure on the elastic member 24, and then the second substrate 222 moves downward to compress the elastic member 24, and the pressure is gradually transmitted to the pre-pressing plate 23 through the elastic member 24; compared with the direct rigid connection between the second substrate 222 and the pre-pressing plate 23, the use of the elastic member 24 can ensure that the pressure transmitted to the pre-pressing plate 23 increases linearly, avoiding damage to the product caused by excessive instantaneous pressure; when the pressing is completed, the first driving member 21 drives the first substrate 221 and the second substrate 222 to move upward relative to the guide column 25, the pressure is reduced, and the elastic member 24 gradually returns to its original state.

[0044] Based on the above embodiment, the pressing mechanism 100 also includes a guide column 25, and the number of the guide columns 25 is multiple, and the multiple guide columns 25 all pass through the first substrate 221 and the second substrate 222, and are slidably connected to the first substrate 221 or the second substrate 222; one end of the multiple guide columns 25 are connected to the pre-pressing plate 23, and the other end of the multiple guide columns 25 is provided with a boss 251; the multiple guide columns 25 are evenly distributed between the first substrate 221 and the pre-pressing plate 23, and pass through the first substrate 221 and the second substrate 222 to be connected to the pre-pressing plate 23. When the pressing work is not performed, the boss 251 of the guide column 25 abuts against the first substrate 221, thereby limiting the sliding of the first substrate 221 relative to the guide column 25, and maintaining the stability of the overall structure of the pressing mechanism 100; when the pressing work is performed, the multiple guide columns 25 provide guiding force, limit the moving direction of the pre-pressing plate 23, ensure that the force is uniform everywhere, improve the pressing accuracy, and make the pre-pressing plate 23 press against the shell and the screen.

[0045] In one embodiment, a plurality of guide posts 25 pass through the first substrate 221 and the second substrate 222 and are slidably connected to the first substrate 221 . The second substrate 222 is provided with a cavity for the guide posts 25 to pass through, and the second substrate 222 slides relative to the guide posts 25 along with the first substrate 221 .

[0046] In another embodiment, the plurality of guide posts 25 pass through the first substrate 221 and the second substrate 222 and are slidably connected to the first substrate 221 and the second substrate 222. The first substrate 221 and the second substrate 222 slide relative to the guide posts 25 together, which can make the transmission more stable.

[0047] Specifically, the elastic member 24 is a spring, the number of which is consistent with the number of the guide posts 25, and the springs are correspondingly sleeved on the guide posts 25; when the cavity 232 of the pre-load plate 23 abuts against the shell, the first driving member 21 continuously drives the first substrate 221 and the second substrate 222 to move downward, and the first substrate 221 and the second substrate 222 begin to exert pressure on the spring, causing the second substrate 222 to move downward along the guide post 25 to compress the spring, and the pressure is transmitted to the pre-load plate 23 through the spring. Since the first substrate 221 and the second substrate 222 are both slidably connected to the guide post 25, at this time, the first substrate 221 and the second substrate 222 are The plate 222 moves downward relative to the guide column 25, so that the boss 251 of the guide column 25 is separated from the first substrate 221, and the pressure of the pre-pressing plate 23 increases linearly due to the action of the spring during pressing, which can avoid damage to the shell and the screen caused by excessive instantaneous pressure; when the pressing is completed, the first driving member 21 drives the first substrate 221 and the second substrate 222 to move upward relative to the guide column 25, the pressure is reduced, the spring gradually returns to its original state, and the boss 251 of the guide column 25 abuts against the first substrate 221, thereby limiting the sliding of the first substrate 221 relative to the guide column 25 and maintaining the stability of the overall structure of the pressing mechanism 100.

[0048] like Figure 2 As shown, in this embodiment, a linear bearing 3 is provided on the first substrate 221, and the first substrate 221 is slidably connected to the guide column 25 through the linear bearing 3; a linear bearing 3 is provided on the second substrate 222, and the second substrate 222 is slidably connected to the guide column 25 through the linear bearing 3; the first substrate 221 and the second substrate 222 are both slidably connected to the guide column 25. By providing linear bearings 3 on the first substrate 221 and the second substrate 222, pressure deflection can be reduced, and transmission can be ensured to be more stable, thereby reducing skew and shaking of the pre-pressing plate 23 during the pressing process, and making the pressing accuracy higher.

[0049] In another embodiment, the sliding connection between the first substrate 221 and the second substrate 222 and the guide column 25 can be achieved through a linear bearing 3. Specifically, the linear bearing 3 is installed on the first substrate 221 and the second substrate 222, and the guide column 25 passes through the linear bearing 3. Of course, in other embodiments, the sliding connection can also be achieved through an oil-free bushing 4. The embodiments of this specification do not limit the specific structure of the sliding connection.

[0050] In addition, in one embodiment, a linear bearing 3 may also be provided on the first substrate 221, and the first substrate 221 is slidably connected to the connecting column 14 via the linear bearing 3. By providing the linear bearing 3, the suction cup clamp 12 can reduce skewness and shaking during adsorption and alignment and bonding, thereby improving the transmission accuracy.

[0051] In one embodiment, the output end of the first driving member 21 is connected to the substrate component 22. In order to enhance the connection strength between the output end of the first driving member 21 and the substrate component 22, the pressing mechanism 100 also includes a connecting plate 5 and a reinforcing plate 6. One side of the connecting plate 5 is connected to the output end of the first driving member 21, and the other side of the connecting plate 5 is connected to the substrate component 22. The reinforcing plate 6 is arranged between the connecting plate 5 and the substrate component 22. By arranging the connecting plate 5 between the output end of the first driving member 21 and the substrate component 22, and arranging the reinforcing plate 6 between the connecting plate 5 and the substrate component 22, the connection area between the output end of the first driving member 21 and the substrate component 22 is increased, the connection strength is improved, and the stability and reliability of the pressing mechanism 100 are effectively guaranteed.

[0052] In this embodiment, the first driving member 21 may be a lifting module, which is a standard component, and this embodiment will not describe its specific structure and function. Other driving modes may also be used, and this embodiment does not limit this.

[0053] The utility model also proposes an assembly device for assembling display screens, the assembly device comprising a pressing mechanism 100. The specific structure of the pressing mechanism 100 refers to the above-mentioned embodiment. Since the assembly device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0054] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pressing mechanism, characterized in that: The pressing mechanism comprises: A pressing assembly, the pressing assembly comprises a first driving member, a substrate member and a pre-pressing plate, the output end of the first driving member is connected to the substrate member; the pre-pressing plate is arranged below the substrate member, the pre-pressing plate is slidably connected to the substrate member, and the pre-pressing plate and the substrate member are elastically connected; a through hole is arranged on the pre-pressing plate, the pre-pressing plate is provided with a cavity matching the structural member, and the pre-pressing plate is used to press the structural member; A clamping assembly, the clamping assembly includes a second driving member and a suction cup clamp, the second driving member is connected to the substrate component, the output end of the second driving member is connected to the suction cup clamp, the suction cup clamp is arranged below the substrate component and directly opposite to the through hole, the first driving member is used to drive the suction cup clamp to move along a first direction to extend out of the through hole, and the suction cup clamp is used to adsorb the structural member.

2. The pressing mechanism according to claim 1, characterized in that: The substrate component comprises a first substrate and a second substrate, the first substrate and the second substrate are arranged at an interval in a direction close to the pre-pressing plate, and a pressure sensor is connected between the first substrate and the second substrate.

3. The pressing mechanism according to claim 1, characterized in that: The suction cup fixture comprises a mounting plate and a suction cup, wherein the mounting plate is connected to the output end of the second driving member; the number of the suction cups is multiple, and the multiple suction cups are evenly distributed along the edge of the mounting plate.

4. The pressing mechanism according to claim 3, characterized in that: The output end of the second driving member is connected to a transverse plate, and a plurality of connecting columns are arranged on the mounting plate. The plurality of connecting columns are arranged on both sides of the second driving member and are all connected to the transverse plate.

5. The pressing mechanism according to claim 4, characterized in that: The connecting column is slidably connected to the base plate component along a first direction.

6. The pressing mechanism according to claim 2, characterized in that: An elastic member is arranged between the pre-pressing plate and the second base plate.

7. The pressing mechanism according to claim 6, characterized in that: The pressing mechanism also includes a plurality of guide columns, each of which passes through the first substrate and the second substrate and is slidably connected to the first substrate and / or the second substrate; one end of each of the guide columns is connected to the pre-pressing plate, and the other end of each of the guide columns is provided with a boss.

8. The pressing mechanism according to claim 7, characterized in that: The elastic members are springs, the number of the springs is consistent with the number of the guide posts, and the springs are sleeved on the guide posts in a one-to-one correspondence.

9. The pressing mechanism according to claim 7, characterized in that: A linear bearing is disposed on the first substrate, and the first substrate is slidably connected to the guide column via the linear bearing; and / or, A linear bearing is disposed on the second substrate, and the second substrate is slidably connected to the guide column via the linear bearing.

10. An assembly device for assembling a display screen, characterized in that: The assembling device comprises the pressing mechanism according to any one of claims 1 to 9.

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