Fine positioning device for curved screen

Abstract

The utility model relates to a curved screen fine positioning device which comprises a left positioning mechanism, a right positioning mechanism and a front-back positioning mechanism, and the left positioning mechanism and the right positioning mechanism are arranged on the two sides of the front-back positioning mechanism respectively. The front-and-back positioning mechanism pushes the curved screen to abut against a limiting assembly on the front-and-back positioning mechanism, and one side of the curved screen pushed by the front-and-back positioning mechanism makes contact with the curved screen through an elastic ring; a curved screen is placed between the left positioning mechanism and the right positioning mechanism, and the left positioning mechanism pushes the curved screen to abut against the right positioning mechanism. The positioning device has the advantages that the positioning device solves the problem that in the assembling process of a curved screen, positioning is not accurate when the curved screen is placed on a carrier from a material box, after the curved screen is positioned through the positioning device, the curved screen can be accurately placed on the carrier, and it is guaranteed that follow-up assembling is conducted smoothly; and due to the arrangement of the positioning device, the participation of personnel is reduced in the assembly production of the curved screen, and the labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of curved screen assembly, in particular to a curved screen precision positioning device. Background Art

[0002] Since most of the current car displays use curved OLED (Organic Light-Emitting Diode) technology, the screen can be better integrated into the car body. At the same time, in order to realize the complete mechanization of the curved screen assembly process, the curved screen needs to be taken out of the material box and accurately placed on the carrier during the curved screen assembly process. The precise positioning of the curved screen must be increased in this process. However, due to uneven force during the positioning process of the curved screen and the different sizes and curvatures of each curved screen, it is not easy to position it, and the screen is easily scratched or crushed during the positioning process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a curved screen precision positioning device, which solves the problems of uneven force, difficult positioning, and scratching or crushing the screen during the curved surface positioning process.

[0004] The utility model solves the above technical problems with the following technical solutions: a curved screen precision positioning device, comprising: a left positioning mechanism, a right positioning mechanism and a front and rear positioning mechanism, wherein the left positioning mechanism and the right positioning mechanism are respectively arranged on both sides of the front and rear positioning mechanism;

[0005] The front and rear positioning mechanism pushes the curved screen to abut against the limiting components on the front and rear positioning mechanism, and the front and rear positioning mechanism pushes one side of the curved screen to contact the curved screen through the elastic ring;

[0006] The curved screen is placed between the left positioning mechanism and the right positioning mechanism, and the left positioning mechanism pushes the curved screen to abut against the right positioning mechanism.

[0007] The beneficial effects of the utility model are as follows: the positioning device solves the problem of inaccurate positioning of the curved screen when it is placed on the carrier from the material box during the assembly process. After the curved screen is positioned by the positioning device, it can be accurately placed on the carrier to ensure the smooth progress of the subsequent assembly process. At the same time, the setting of the positioning device also reduces the participation of personnel in the assembly and production of the curved screen, saving labor costs, and also preventing installation errors during the assembly process; the coordinated work of the left positioning mechanism, the right positioning mechanism, and the front and rear positioning mechanisms can ensure that the curved screen is accurately positioned in multiple directions, improve the positioning accuracy of the curved screen, and thus ensure the accuracy of subsequent steps. An elastic ring is used to contact the curved screen, and the elastic ring is a flexible positioning method, which solves the problem of uneven force and difficult positioning during the curved surface positioning process, prevents the screen from being crushed, and uses soft materials to contact the curved screen, which will not scratch the screen, preventing the screen from being scratched during the positioning process.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Further, the left positioning mechanism comprises: a left bottom plate, a first limiting block, a left supporting plate and a positioning cylinder, wherein the first limiting block, the left supporting plate and the positioning cylinder are all arranged on the upper end surface of the left bottom plate, and the upper end surface of the left supporting plate is arranged to support the curved screen;

[0010] The movable end of the positioning cylinder is connected to the left supporting plate, and the two sides of the left supporting plate are respectively provided with a first limiting block.

[0011] The beneficial effect of adopting the above further scheme is: the positioning mechanism achieves precise positioning of the curved screen through the coordinated cooperation of the left bottom plate, the first limiting block, the left support plate and the positioning cylinder; through the drive of the positioning cylinder, the left support plate can push the curved screen to move to abut against the right positioning mechanism, thereby completing the positioning process and realizing automated operation, which not only improves production efficiency, but also reduces the complexity and error rate of manual operation.

[0012] Further, the first limiting block is arranged parallel to the moving direction of the left supporting plate, and the left supporting plate is confined between a pair of the first limiting blocks.

[0013] The beneficial effect of adopting the above further solution is that the left support plate is limited to move between a pair of first limiting blocks, thereby limiting the moving path of the left support plate, ensuring that the curved screen can move along a predetermined path during the positioning process, thereby achieving more accurate positioning. At the same time, the setting of the limiting blocks also enhances the stability of the left support plate, reduces shaking or offset during movement, and further improves positioning accuracy.

[0014] Further, the right positioning mechanism comprises: a right bottom plate, a right support plate, a light rod, a fixing plate and a connecting plate, the right support plate and the fixing plate are both arranged on the upper end surface of the right bottom plate, and the upper end surface of the right support plate is arranged to support the curved screen;

[0015] The fixing plate is arranged parallel to the connecting plate, and a pair of light rods are arranged at intervals on one side of the right supporting plate away from the left positioning mechanism, and each of the light rods penetrates the fixing plate and extends to one side of the connecting plate.

[0016] The beneficial effects of adopting the above further scheme are: the right positioning mechanism cooperates with the left positioning mechanism to achieve accurate positioning of the curved screen through the coordinated cooperation of the right bottom plate, the right support plate, the light rod, the fixed plate and the connecting plate; when the left positioning mechanism pushes the curved screen to move, the right support plate of the right positioning mechanism can abut against the side of the curved screen away from the left positioning mechanism, thereby completing the positioning process and realizing automated operation, which not only improves production efficiency but also reduces the complexity and error rate of manual operation. The light rod extends to the connecting plate after passing through the fixed plate, so that when the right support plate is subjected to force, the right support plate can be fine-tuned within a certain range, which plays a buffering and protective role.

[0017] Furthermore, a second limiting block is respectively arranged on the right bottom plate on both sides of the right supporting plate, and the second limiting block is arranged parallel to the moving direction of the right supporting plate, and the right supporting plate is confined between a pair of the second limiting blocks.

[0018] The beneficial effect of adopting the above further solution is that the second limiting block is arranged parallel to the moving direction of the right support plate, so that the right support plate is limited to move between a pair of second limiting blocks, thereby limiting the moving path of the right support plate, ensuring that the curved screen can move along a predetermined path during the positioning process, thereby achieving more accurate positioning. At the same time, the setting of the limiting block also enhances the stability of the right support plate, reduces shaking or offset during movement, and further improves the positioning accuracy.

[0019] Furthermore, a spring is sleeved on the polished rod between the right support plate and the fixed plate;

[0020] An adjusting screw is also provided on the connecting plate in a direction parallel to the light rod, and one end of the adjusting screw extends out of the connecting plate and abuts against the end surface of the fixing plate.

[0021] The beneficial effects of adopting the above further scheme are: the spring provides additional buffering and protection for the curved screen, can absorb the impact force from the curved screen, and prevent it from being deformed or damaged due to excessive pressure; by screwing the adjusting screw in or out toward the side close to the fixed plate, the force applied to the fixed plate is adjusted, thereby adjusting the spring force to ensure that the curved screen does not deform significantly during the positioning process; the screw hard limit also ensures the positioning accuracy; the operator can adjust the spring force by rotating the adjusting screw, without the need for complicated tools or steps, with a simple structure and easy and quick operation.

[0022] Further, the front and rear positioning mechanism comprises: a front and rear positioning base plate, a buffer, a compression cylinder and a support plate, wherein the buffer, the compression cylinder and the support plate are all arranged on the upper end surface of the front and rear positioning base plate, and the compression cylinder is arranged on a side of the support plate close to the limit assembly;

[0023] The movable end of the compression cylinder is connected to the support plate, and a plurality of elastic rings are arranged at intervals on the upper end surface of the support plate;

[0024] The buffers are symmetrically arranged on both sides of the compression cylinder.

[0025] The beneficial effects of adopting the above further scheme are: the front and rear positioning mechanism drives the support plate to move through the compression cylinder, the elastic ring on the support plate contacts the curved screen, and pushes the curved screen to abut against the limit assembly, so as to achieve precise positioning of the curved screen in the front and rear directions. The setting of the elastic ring effectively prevents the screen from being crushed and protects the safety of the screen. The setting of the buffer limits the movement of the cylinder, prevents the screen from being damaged or scratched due to excessive force provided by the cylinder, and enhances the safety of the positioning process; the front and rear positioning mechanism cooperates with the left positioning mechanism and the right positioning mechanism to realize the automatic positioning of the curved screen, realize automated operation, improve production efficiency, and reduce the complexity and error rate of manual operation.

[0026] Furthermore, the compression cylinder is connected to a pressure regulating valve, and the pressure regulating valve is used to adjust the pressure of the compression cylinder.

[0027] The beneficial effect of adopting the above further scheme is: the compression cylinder is adjusted to a suitable air pressure through the pressure regulating valve, so that the screen will not be deformed and the curved screen is guaranteed not to be damaged; the pressure regulating valve and the buffer together play a dual protection role for the curved screen, further enhancing the safety of the positioning process.

[0028] Further, the position limiting assembly comprises: a fixing rod and a fixing block, wherein the fixing rod is vertically arranged on the upper end surface of the fixing block;

[0029] The fixing block is arranged on the upper end surface of the front and rear positioning base plates at a side away from the fixing rod;

[0030] The width direction of the curved screen is limited between the support plate and the fixing rod.

[0031] The beneficial effect of adopting the above further solution is that by setting the limit assembly on the front and rear positioning base plates, the position of the curved screen in the width direction can be accurately limited. The combined structure of the fixing rod and the fixing block ensures that the curved screen is stably clamped between the support plate and the fixing rod, thereby achieving accurate positioning of the curved screen.

[0032] Furthermore, the left positioning mechanism, the right positioning mechanism and the front and rear positioning mechanisms are all arranged on a support frame.

[0033] The beneficial effect of adopting the above further solution is that the height of the support frame matches the height of the double-speed chain conveyor line, satisfying the robot's handling operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the positioning device and the double-speed chain water conveying line of the utility model;

[0035] Figure 2 It is a structural schematic diagram of an embodiment of the utility model;

[0036] Figure 3 This is a structural schematic diagram of a right positioning mechanism in an embodiment of the utility model;

[0037] Figure 4 This is a structural schematic diagram of a left positioning mechanism in an embodiment of the utility model;

[0038] Figure 5 It is a structural schematic diagram of the front and rear positioning mechanism in one embodiment of the utility model.

[0039] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0040] 1. Double-speed chain conveyor line; 2. Right positioning mechanism; 3. Left positioning mechanism; 4. Front and rear positioning mechanism; 5. Curved screen; 6. Pressure regulating valve; 2.1. Adjusting screw; 2.2. Connecting plate; 2.3. Light rod; 2.4. Copper sleeve; 2.5. Fixed plate; 2.6. Right support plate; 2.7. Second limiting block; 2.8. Right bottom plate; 3.1. Left bottom plate; 3.2. First limiting block; 3.3. Left support plate; 3.4. Positioning cylinder; 4.1. Fixed rod; 4.2. Fixed block; 4.3. Buffer; 4.4. Compression cylinder; 4.5. Elastic ring; 4.6. Support plate; 4.7. Moving rod; 4.8. Linear bearing. DETAILED DESCRIPTION

[0041] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0042] like Figure 1-2 As shown, the utility model provides a device for precisely positioning a curved screen, including: a left positioning mechanism 3, a right positioning mechanism 2, and a front and rear positioning mechanism 4, wherein the left positioning mechanism 3 and the right positioning mechanism 2 are respectively arranged on both sides of the front and rear positioning mechanism 4. In the specific working process, the positioning device is arranged on one side of the double-speed chain water conveyor line 1. After the positioning device precisely positions the curved screen 5, the curved screen 5 can be removed from the positioning device by a robot and placed on the carrier of the double-speed chain water conveyor line 1, thereby completing the process of precisely positioning the entire curved screen 5. In order to realize the installation of the positioning device, the left positioning mechanism 3, the right positioning mechanism 2, and the front and rear positioning mechanisms 4 are all arranged on the upper end surface of the support frame, and the height of the support frame matches the height of the double-speed chain water conveyor line 1 to meet the handling operation of the robot. Among them, the support frame is only a frame structure with a certain height that can be used for the installation of the left positioning mechanism 3, the right positioning mechanism 2, and the front and rear positioning mechanisms 4, and no further limitation is made here.

[0043] In the process of positioning the curved screen 5, the robot takes a curved screen 5 from the material box and places it between the left positioning mechanism 3 and the right positioning mechanism 2. The opening arc of the curved screen 5 is set downward. The front and rear positioning mechanisms 4 push the curved screen 5 to abut against the limit components on the front and rear positioning mechanisms 4, that is, the front and rear direction positioning and clamping of the curved screen 5 are completed. Then, the left positioning mechanism 3 pushes the curved screen 5 to abut against the right positioning mechanism 2, that is, the left and right direction positioning of the curved screen 5 is completed. In this embodiment, the front and rear positioning mechanisms 4 push one side of the curved screen 5 to contact the curved screen 5 through the elastic ring 4.5. The elastic ring 4.5 is a roller wrapped with soft plastic on the outside to prevent the screen from being crushed.

[0044] In this embodiment, the positioning device solves the problem of inaccurate positioning of the curved screen 5 when it is placed on the carrier from the material box during the assembly process. After the curved screen 5 is positioned by the positioning device, it can be accurately placed on the carrier to ensure the smooth progress of the subsequent assembly process. At the same time, the setting of the positioning device also reduces the participation of personnel in the assembly production of the curved screen 5, saves labor costs, and also prevents installation errors during the assembly process; the coordinated work of the left positioning mechanism 3, the right positioning mechanism 2, and the front and rear positioning mechanisms 4 can ensure that the curved screen 5 is accurately positioned in multiple directions, improve the positioning accuracy of the curved screen 5, and thus ensure the accuracy of subsequent steps. The elastic ring 4.5 is used to contact the curved screen 5. The elastic ring 4.5 is a flexible positioning method, which solves the problem of uneven force and difficult positioning during the curved surface positioning process, prevents the screen from being crushed, and uses soft materials to contact the curved screen 5, which will not scratch the screen, preventing the screen from being scratched during the positioning process.

[0045] like Figure 4 As shown, in the preferred solution, the left positioning mechanism 3 includes: a left bottom plate 3.1, a first limiting block 3.2, a left support plate 3.3 and a positioning cylinder 3.4. The left positioning mechanism 3 is located on the left side of the upper end surface of the support frame. Specifically, the left bottom plate 3.1 is installed on the left side of the support frame, and the first limiting block 3.2, the left support plate 3.3 and the positioning cylinder 3.4 are all arranged on the upper end surface of the left bottom plate 3.1. In this embodiment, the left support plate 3.3 is in an inverted "T" shape, and the movable end of the positioning cylinder 3.4 is connected to the vertical plate vertically arranged on the left support plate 3.3. A first limiting block 3.2 is respectively arranged on both sides of the horizontal plate of the "T"-shaped head. In the specific positioning process, the curved screen 5 is placed on the upper end surface of the horizontal plate on the side of the vertical plate away from the positioning cylinder 3.4, and the left support plate 3.3 is driven to move by the positioning cylinder 3.4, thereby pushing the curved screen 5 to move to abut against the right positioning mechanism 2.

[0046] In the above scheme, the left positioning mechanism 3 realizes the precise positioning of the curved screen 5 through the coordinated cooperation of the left bottom plate 3.1, the first limiting block 3.2, the left support plate 3.3 and the positioning cylinder 3.4; through the drive of the positioning cylinder 3.4, the left support plate 3.3 can push the curved screen 5 to move to abut against the right positioning mechanism 2, thereby completing the positioning process and realizing automated operation, which not only improves production efficiency, but also reduces the complexity and error rate of manual operation.

[0047] In this embodiment, a pair of first limiting blocks 3.2 are provided, and the first limiting blocks 3.2 are provided in parallel with the moving direction of the left supporting plate 3.3, so that the left supporting plate 3.3 is limited to move between the pair of first limiting blocks 3.2, thereby limiting the moving path of the left supporting plate 3.3, ensuring that the curved screen 5 can move along a predetermined path during the positioning process, thereby achieving more accurate positioning. At the same time, the provision of the limiting blocks also enhances the stability of the left supporting plate 3.3, reduces shaking or offset during the movement process, and further improves the positioning accuracy.

[0048] like Figure 3As shown, in the preferred solution, the right positioning mechanism 2 includes: a right bottom plate 2.8, a right support plate 2.6, a bare rod 2.3, a fixed plate 2.5 and a connecting plate 2.2. The right positioning mechanism 2 is located on the right side of the upper end surface of the support frame. Specifically, the right bottom plate 2.8 is installed on the right side of the support frame, the right support plate 2.6 and the fixed plate 2.5 are both arranged on the upper end surface of the right bottom plate 2.8, and the fixed plate 2.5 is arranged parallel to the connecting plate 2.2; in this embodiment, the right support plate 2.6 is " L" shape, a polished rod 2.3 is arranged on the side of the vertical plate arranged vertically on the right support plate 2.6 away from the left positioning mechanism 3. In this embodiment, a pair of polished rods 2.3 are arranged vertically on the side of the vertical plate. The polished rods 2.3 pass through the fixed plate 2.5 and extend to the connecting plate 2.2, and are connected to the connecting plate 2.2; it can be imagined that a connecting hole for the polished rod 2.3 to pass through is opened on the fixed plate 2.5, and a copper sleeve 2.4 is provided at the matching position of the polished rod 2.3 and the fixed rod 4.1.

[0049] In the specific positioning process, the curved screen 5 is placed on the upper end surface of the horizontal plate on the side of the vertical plate away from the positioning cylinder 3.4, and the right supporting plate 2.6 abuts against the side of the curved screen 5 pushed by the left positioning mechanism 3 away from the left positioning mechanism 3.

[0050] In the above scheme, the right positioning mechanism 2 cooperates with the left positioning mechanism 3 to achieve accurate positioning of the curved screen 5 through the coordination of the right bottom plate 2.8, the right support plate 2.6, the light rod 2.3, the fixed plate 2.5 and the connecting plate 2.2; when the left positioning mechanism 3 pushes the curved screen 5 to move, the right support plate 2.6 of the right positioning mechanism 2 can abut against the side of the curved screen 5 away from the left positioning mechanism 3, thereby completing the positioning process and realizing automated operation, which not only improves production efficiency but also reduces the complexity and error rate of manual operation. The light rod 2.3 penetrates the fixed plate 2.5 and then extends to the connecting plate 2.2. When the right support plate 2.6 is subjected to force, the right support plate 2.6 can be fine-tuned within a certain range, playing a buffering and protective role.

[0051] In this embodiment, a second limiting block 2.7 is respectively arranged on the right bottom plate 2.8 on both sides of the right support plate 2.6, and the second limiting block 2.7 is arranged parallel to the moving direction of the right support plate 2.6, so that the right support plate 2.6 is limited to move between a pair of second limiting blocks 2.7, thereby limiting the moving path of the right support plate 2.6, ensuring that the curved screen 5 can move according to the predetermined path during the positioning process, thereby achieving more accurate positioning. At the same time, the setting of the limiting block also enhances the stability of the right support plate 2.6, reduces shaking or offset during the movement process, and further improves the positioning accuracy.

[0052] like Figure 3As shown, in the preferred solution, a spring is also sleeved on the light rod 2.3 between the right support plate 2.6 and the fixed plate 2.5, providing additional buffer and protection for the curved screen 5. The spring can absorb the impact force from the curved screen 5 to prevent it from being deformed or damaged due to excessive pressure, wherein the spring is not shown in the figure. At the same time, an adjustable movable mechanism is also provided on the connecting plate 2.2 in the direction parallel to the light rod 2.3. The adjustable movable mechanism is an adjusting screw 2.1. One end of the adjusting screw 2.1 extending out of the connecting plate 2.2 abuts against the end surface of the fixed plate 2.5. By screwing the adjusting screw 2.1 in or out toward the side close to the fixed plate 2.5, the force applied to the fixed plate 2.5 is adjusted, thereby playing the role of adjusting the spring elastic force, ensuring that the curved screen 5 does not deform significantly during the positioning process; the screw hard limit also ensures the positioning accuracy; the operator can adjust the spring elastic force by rotating the adjusting screw 2.1, without the need for complex tools or steps, with a simple structure and easy and quick operation.

[0053] like Figure 5 As shown, in the preferred solution, the front and rear positioning mechanism 4 includes: front and rear positioning base plates, a buffer 4.3, a compression cylinder 4.4 and a support plate 4.6. The front and rear positioning base plates are installed on the support member between the left positioning mechanism 3 and the right positioning mechanism 2, and are located at the middle of the length direction of the support member. The buffer 4.3, the compression cylinder 4.4 and the support plate 4.6 are all arranged on the upper end surface of the front and rear positioning base plates; the movable end of the compression cylinder 4.4 is connected to the support plate 4.6, and a plurality of elastic rings 4.5 are arranged at intervals on the upper end surface of the support plate 4.6. In this embodiment, the elastic ring 4.5 adopts a roller structure wrapped with soft plastic on the outside, and the side of the roller contacts the screen, that is, the contact between the two generates rolling friction to prevent the screen from being crushed. The compression cylinder 4.4 is arranged on the side of the support plate 4.6 close to the limit assembly, which is more conducive to the structural layout, making the front and rear positioning mechanism 4 more compact in space and reducing the floor space.

[0054] Specifically, buffers 4.3 are symmetrically arranged on both sides of the compression cylinder 4.4. The buffers 4.3 are purchased on demand. The arrangement of the buffers 4.3 limits the movement of the cylinder, ensures the safety of the curved screen 5, and prevents the force provided by the cylinder from being too large, thereby damaging or scratching the screen; linear bearings 4.8 and moving rods 4.7 are also symmetrically arranged on both sides of the compression cylinder 4.4. In the present embodiment, the linear bearings 4.8 and the moving rods 4.7 are arranged on the sides of a pair of buffers 4.3 that are away from each other, and the side of the moving rod 4.7 that is away from the linear bearings 4.8 is connected to the support plate 4.6. The arrangement of the linear bearings 4.8 and the moving rods 4.7 allows the support plate 4.6 to remain parallel during the movement, so that the side of the curved screen 5 is evenly stressed.

[0055] In the specific positioning process, the compression cylinder 4.4 is first retracted to make the elastic ring 4.5 contact the curved screen 5 and push the curved screen 5 until the side of the curved screen 5 away from the compression cylinder 4.4 abuts against the limit assembly, thereby realizing the positioning of the curved surface in the front and rear directions, and then the left positioning mechanism 3 and the right positioning mechanism 2 realize the positioning of the curved screen 5 in the left and right directions.

[0056] In the above scheme, the front and rear positioning mechanism 4 drives the support plate 4.6 to move by compressing the cylinder 4.4, and the elastic ring 4.5 on the support plate 4.6 contacts the curved screen 5, and pushes the curved screen 5 to abut against the limit assembly, so as to realize the precise positioning of the curved screen 5 in the front and rear directions. The setting of the elastic ring 4.5 effectively prevents the screen from being crushed and protects the safety of the screen. The setting of the buffer 4.3 limits the movement of the cylinder, prevents the screen from being damaged or scratched due to excessive force provided by the cylinder, and enhances the safety of the positioning process; through the setting of the linear bearing 4.8 and the moving rod 4.7, the support plate 4.6 can remain parallel during the movement, ensuring that the side of the curved screen 5 is evenly stressed, which helps to avoid positioning deviation or screen damage caused by uneven stress. The front and rear positioning mechanism 4 cooperates with the left positioning mechanism 3 and the right positioning mechanism 2 to realize the automatic positioning of the curved screen 5, realize automated operation, improve production efficiency, and reduce the complexity and error rate of manual operation.

[0057] like Figure 2 As shown, a pressure regulating valve 6 is also provided to achieve fine adjustment of the compression cylinder 4.4. Specifically, the compression cylinder 4.4 is connected to the pressure regulating valve 6, and the compression cylinder 4.4 is adjusted to a suitable air pressure through the pressure regulating valve 6, so that the screen will not be deformed, ensuring that the curved screen 5 is not damaged; during use, the pressure regulating valve 6 cooperates with the buffer 4.3 to play a dual protection role for the curved screen 5, further enhancing the safety of the positioning process.

[0058] like Figure 5 As shown, the limiting assembly includes: a fixing rod 4.1 and a fixing block 4.2, the fixing rod 4.1 is vertically arranged on the upper end surface of the fixing block 4.2, and the side of the fixing block 4.2 away from the fixing rod 4.1 is arranged on the upper end surface of the front and rear positioning base plates; in this embodiment, there are multiple limiting assemblies, and a group of limiting assemblies are symmetrically arranged on both sides of the compression cylinder 4.4, so that the width direction of the curved screen 5 is limited between the support plate 4.6 and the fixing rod 4.1.

[0059] In the above scheme, by setting the limiter components on the front and rear positioning base plates, the position of the curved screen 5 in the width direction can be accurately limited. The combined structure of the fixing rod 4.1 and the fixing block 4.2 ensures that the curved screen 5 is stably clamped between the support plate 4.6 and the fixing rod 4.1, thereby achieving accurate positioning of the curved screen 5. At the same time, the limiter components are symmetrically set on both sides of the compression cylinder 4.4 to ensure that the curved screen 5 can be evenly stressed when it is thrust, avoiding positioning deviation or screen damage caused by uneven force on the curved screen 5, and improving the accuracy and reliability of positioning.

[0060] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A curved screen precision positioning device, characterized in that: include: A left positioning mechanism (3), a right positioning mechanism (2) and a front-rear positioning mechanism (4), wherein the left positioning mechanism (3) and the right positioning mechanism (2) are respectively arranged on both sides of the front-rear positioning mechanism (4); The front and rear positioning mechanism (4) pushes the curved screen (5) to abut against the limit assembly on the front and rear positioning mechanism (4), and the front and rear positioning mechanism (4) pushes one side of the curved screen (5) to contact the curved screen (5) through the elastic ring (4.5); The curved screen (5) is placed between the left positioning mechanism (3) and the right positioning mechanism (2), and the left positioning mechanism (3) pushes the curved screen (5) to abut against the right positioning mechanism (2).

2. According to claim 1, a curved screen precision positioning device is characterized in that: The left positioning mechanism (3) comprises: a left bottom plate (3.1), a first limiting block (3.2), a left supporting plate (3.3) and a positioning cylinder (3.4); the first limiting block (3.2), the left supporting plate (3.3) and the positioning cylinder (3.4) are all arranged on the upper end surface of the left bottom plate (3.1); and the upper end surface of the left supporting plate (3.3) is arranged on the supporting curved screen (5); The movable end of the positioning cylinder (3.4) is connected to the left support plate (3.3), and a first limiting block (3.2) is respectively provided on both sides of the left support plate (3.3).

3. The device for precisely positioning a curved screen according to claim 2, characterized in that: The first limiting block (3.2) is arranged parallel to the moving direction of the left supporting plate (3.3), and the left supporting plate (3.3) is confined between a pair of the first limiting blocks (3.2).

4. The device for precisely positioning a curved screen according to claim 1, characterized in that: The right positioning mechanism (2) comprises: a right bottom plate (2.8), a right support plate (2.6), a light rod (2.3), a fixing plate (2.5) and a connecting plate (2.2); the right support plate (2.6) and the fixing plate (2.5) are both arranged on the upper end surface of the right bottom plate (2.8); and the upper end surface of the right support plate (2.6) is arranged to support the curved screen (5); The fixing plate (2.5) is arranged parallel to the connecting plate (2.2); a pair of light rods (2.3) are arranged at intervals on one side of the right supporting plate (2.6) away from the left positioning mechanism (3); each light rod (2.3) penetrates the fixing plate (2.5) and extends to one side of the connecting plate (2.2).

5. The device for accurately positioning a curved screen according to claim 4, characterized in that: A second limiting block (2.7) is respectively arranged on the right bottom plate (2.8) on both sides of the right supporting plate (2.6); the second limiting block (2.7) is arranged parallel to the moving direction of the right supporting plate (2.6); and the right supporting plate (2.6) is confined between a pair of the second limiting blocks (2.7).

6. The device for accurately positioning a curved screen according to claim 4, characterized in that: A spring is also sleeved on the polished rod (2.3) between the right supporting plate (2.6) and the fixing plate (2.5); An adjusting screw (2.1) is also provided on the connecting plate (2.2) in a direction parallel to the light rod (2.3), and one end of the adjusting screw (2.1) extends out of the connecting plate (2.2) and abuts against the end surface of the fixing plate (2.5).

7. The device for precisely positioning a curved screen according to claim 1, characterized in that: The front and rear positioning mechanism (4) comprises: a front and rear positioning base plate, a buffer (4.3), a compression cylinder (4.4) and a support plate (4.6); the buffer (4.3), the compression cylinder (4.4) and the support plate (4.6) are all arranged on the upper end surface of the front and rear positioning base plate; the compression cylinder (4.4) is arranged on a side of the support plate (4.6) close to the limit assembly; The movable end of the compression cylinder (4.4) is connected to the support plate (4.6), and a plurality of elastic rings (4.5) are arranged at intervals on the upper end surface of the support plate (4.6); The buffers (4.3) are symmetrically arranged on both sides of the compression cylinder (4.4).

8. The device for accurately positioning a curved screen according to claim 7, characterized in that: The compression cylinder (4.4) is connected to a pressure regulating valve (6), and the pressure regulating valve (6) is used to adjust the pressure of the compression cylinder (4.4).

9. The device for accurately positioning a curved screen according to claim 7, characterized in that: The limiting assembly comprises: a fixing rod (4.1) and a fixing block (4.2), wherein the fixing rod (4.1) is vertically arranged on the upper end surface of the fixing block (4.2); The fixing block (4.2) is arranged on the upper end surface of the front and rear positioning base plates at a side facing away from the fixing rod (4.1); The width direction of the curved screen (5) is limited between the support plate (4.6) and the fixing rod (4.1).

10. A curved screen precision positioning device according to any one of claims 1 to 9, characterized in that: The left positioning mechanism (3), the right positioning mechanism (2) and the front and rear positioning mechanisms (4) are all arranged on a support frame.

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