A jig for seamless splicing of LED small-pitch boxes

Abstract

The utility model discloses a kind of LED small-pitch box seamless splicing's jig, it is related to LED production technical field, including bottom plate, several standard limit plates are installed on the upper end of bottom plate, standard upper plate is installed on the upper surface of several standard limit plates, standard limit plate and standard upper plate are mutually perpendicular and form L type structure, standard limit plate and standard upper plate are used to limit the standard installation position of LED box;The jig of the LED small-pitch box seamless splicing, through the independent control horizontal and longitudinal leveling mechanism, can eliminate the misplacement and height difference of box in left and right and upper and lower two dimensions.The cumbersome process of traditional reliance on artificial hand feeling, repeated adjustment is changed into one-step mechanical operation, thereby improve splicing efficiency and precision, splicing efficiency is improved, operator does not need to repeatedly touch and visual judgment, reduce labor intensity, while reducing operation difficulty, while also reducing the error introduced by human factor.

Description

Technical Field

[0001] This utility model relates to the field of LED production technology, specifically to a fixture for seamless splicing of small-pitch LED cabinets. Background Technology

[0002] With the rapid development of display technology, LED displays, with their advantages of high brightness, high contrast, and long lifespan, have been widely used in high-end application fields such as command and control, conferences and exhibitions, and broadcasting. Among them, small-pitch LED displays (usually referring to displays with a pixel pitch of P2.5 and below) are gradually becoming the mainstream choice in the high-end indoor display market due to their seamless splicing, high resolution, and delicate image quality.

[0003] Small-pitch LED displays are typically composed of multiple independent cabinet modules spliced ​​together. The final visual performance of the display depends heavily on the flatness of these cabinet splices. Even a micrometer-level height difference or horizontal misalignment between adjacent cabinets will result in noticeable bright or dark lines when displaying solid colors, especially light colors, due to pixel misalignment and inconsistent module surface height. This severely damages the integrity and aesthetics of the display, becoming a bottleneck restricting the experience in high-end application scenarios.

[0004] Currently, the industry generally uses manual operation for the on-site installation and leveling of small-pitch LED cabinets. The process is as follows: An operator in front of the screen observes the gaps and flatness between the cabinets, while coordinating with another operator behind the screen. The operator behind the screen manually adjusts the mechanical fine-tuning mechanisms (such as lead screws and eccentric wheels) at the rear of the cabinet according to instructions, while the operator in front judges the flatness by touch and visual inspection. This process requires repeated communication and multiple fine-tuning by both operators until the current cabinet is basically aligned with the installed cabinets in both the left-right (X-axis) and up-down (Z-axis) dimensions. Only then can the connecting screws between the cabinets be tightened, completing the installation of one cabinet. The same tedious process is then used to install the next adjacent cabinet.

[0005] This traditional leveling method is extremely inefficient, severely slowing down the entire project's construction progress and incurring high labor and time costs. The human eye's ability to discern and the precision of tactile feedback have their limits. For small-pitch screens, this subjective judgment method is prone to errors, making it difficult to completely eliminate micron-level misalignments. The problem of bright and dark lines cannot be fundamentally avoided. Therefore, the traditional manual leveling method is inefficient and its accuracy depends on manual labor, making it difficult to fundamentally eliminate micron-level misalignments in the cabinet, thus leaving the problem of bright and dark lines on the screen unresolved. Utility Model Content

[0006] The purpose of this invention is to provide a fixture for seamless splicing of small-pitch LED cabinets, so as to solve the problems of low efficiency and reliance on manual labor in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a fixture for seamless splicing of small-pitch LED cabinets, including a base plate, a plurality of standard limiting plates are installed on the upper end of the base plate, and a standard upper plate is installed on the upper surface of each of the plurality of standard limiting plates. The standard limiting plates and the standard upper plates are perpendicular to each other to form an L-shaped structure. The standard limiting plates and the standard upper plates are used to define the standard installation position of the LED cabinet.

[0008] Several L-shaped placement plates are provided, and all of the L-shaped placement plates are placed above the base plate. The L-shaped placement plates are used to support the LED cabinets to be assembled.

[0009] A horizontal leveling mechanism is provided on the upper surface of the base plate, and the horizontal leveling mechanism is used to adjust the horizontal position of the L-shaped placement plate.

[0010] A longitudinal leveling mechanism is located inside the transverse leveling mechanism, and the longitudinal leveling mechanism is used to adjust the longitudinal position of the L-shaped placement plate.

[0011] Furthermore, the lateral leveling mechanism includes a fixed plate installed on one side of the base plate, with a plurality of driving components installed on the upper end of the fixed plate, and a connecting plate installed on the output end of each of the driving components.

[0012] Furthermore, the upper surface of the base plate is provided with several transverse guide grooves, and a transverse adjustment plate is slidably installed inside each of the transverse guide grooves. One side of the connecting plate is connected to one side of the transverse adjustment plate, and the upper surface of the transverse adjustment plate is movably connected to the L-shaped placement plate.

[0013] Furthermore, the longitudinal leveling mechanism includes a longitudinal guide groove formed on the upper end of the transverse adjustment plate. Telescopic components are provided on both sides inside the longitudinal guide groove. A drive plate is installed at the output end of each of the two telescopic components. A longitudinal adjustment plate is installed between the two drive plates. The upper surface of the longitudinal adjustment plate is connected to the lower surface of the L-shaped placement plate. The longitudinal adjustment plate is slidably connected to the longitudinal guide groove.

[0014] Furthermore, a track is installed on the upper end of the connecting plate, and a lifting plate is slidably installed inside the track. The lower surface of the lifting plate is connected to the upper surface of the L-shaped placement plate.

[0015] Furthermore, pressure sensors are provided on the surfaces of both the standard limiting plate and the standard upper plate.

[0016] Compared with the prior art, the fixture for seamless splicing of small-pitch LED cabinets provided by this utility model has the following beneficial effects.

[0017] The independently controlled horizontal and vertical leveling mechanisms eliminate misalignment and height differences between the cabinets in both left-right and up-down dimensions. This transforms the traditionally tedious process of manual adjustment into a one-step mechanized operation, improving splicing efficiency and precision. Increased efficiency means operators no longer need to repeatedly touch and visually judge, reducing labor intensity and operational difficulty, while also minimizing human error. Secondly, the fixture uses a unique L-shaped reference structure standard limiting plate and standard upper plate as a common reference system for leveling all cabinets, ensuring that all leveled cabinets meet a uniform flatness standard. This fundamentally eliminates the problem of bright and dark lines on the screen caused by physical misalignment of the cabinets, significantly improving the uniformity and overall visual effect of the final large-screen display. Finally, by adding pressure sensors, the contact force between the cabinet and the standard limiting plate and standard upper plate can be monitored in real time and quantitatively. The system can automatically stop the drive components based on pressure feedback, realizing intelligent control and overload protection in the leveling process, avoiding damage to the housing that may be caused by over-adjustment, and ensuring the safety of operation and the consistency of leveling results. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 A first-view structural schematic diagram provided for an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the second-view structure provided for an embodiment of the present utility model;

[0021] Figure 3 A third-view structural schematic diagram provided for an embodiment of this utility model;

[0022] Figure 4 A schematic diagram of the lateral leveling mechanism provided in this embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the separation structure of the horizontal adjustment plate and the vertical adjustment mechanism provided in this embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the longitudinal leveling mechanism provided in an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Base plate; 2. Limiting plate; 3. Standard upper plate; 4. Pressure sensor; 5. Fixing plate; 6. Driving component; 7. Connecting plate; 8. Lateral guide groove; 9. Lateral adjustment plate; 10. L-shaped placement plate; 11. Longitudinal guide groove; 12. Telescopic component; 13. Driving plate; 14. Longitudinal adjustment plate; 15. Track; 16. Lifting plate. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] As attached Figure 1 To be continued Figure 6 As shown:

[0029] Example 1:

[0030] This utility model provides a fixture for seamless splicing of small-pitch LED cabinets, including a base plate 1, a plurality of standard limiting plates 2 are installed on the upper end of the base plate 1, and a standard upper plate 3 is installed on the upper surface of each of the standard limiting plates 2. The standard limiting plates 2 and the standard upper plate 3 are perpendicular to each other to form an L-shaped structure. The standard limiting plates 2 and the standard upper plate 3 are used to limit the standard installation position of the LED cabinet.

[0031] Several L-shaped placement plates 10 are provided, and several L-shaped placement plates 10 are all provided above the base plate 1. The L-shaped placement plates 10 are used to support the LED cabinet to be assembled.

[0032] A horizontal leveling mechanism is provided on the upper surface of the base plate 1. The horizontal leveling mechanism is used to adjust the horizontal position of the L-shaped placement plate 10.

[0033] The longitudinal leveling mechanism is located inside the transverse leveling mechanism and is used to adjust the longitudinal position of the L-shaped placement plate 10.

[0034] Working Principle: First, the L-shaped reference structure, consisting of the standard limiting plate 2 and the standard upper plate 3, provides a unique and accurate standard coordinate reference system for the entire fixture. This reference angle provides a zero-position reference surface. At the start of assembly, the operator can place multiple LED cabinets onto their corresponding L-shaped placement plates 10. Due to manufacturing and assembly tolerances, slight misalignment may exist between some cabinets. At this time, the lateral leveling mechanism located on the side of the cabinet is activated, driving the L-shaped placement plate 10 to move towards the standard limiting plate 2, pushing the side of the cabinet towards the standard limiting plate 2 until its side is tightly fitted with the side of the standard limiting plate 2, thereby eliminating the left-right misalignment between several cabinets. The longitudinal leveling mechanism located below the bottom of the cabinet is activated, driving the L-shaped placement plate 10 upwards, lifting the cabinet and L-shaped placement plate 10 from the bottom until the upper edge of the cabinet is in close contact with the lower edge of the standard upper plate 3, thus eliminating the vertical misalignment between the cabinets.

[0035] These two leveling mechanisms work independently yet collaboratively, allowing operators to adjust the position of the LED cabinets in two horizontal dimensions, thereby eliminating physical gaps between adjacent cabinets. At this point, operators can easily tighten the connecting screws between the cabinets to fix several cabinets into a standard, seamless cabinet array. The entire process does not require repeated lifting of the cabinets; alignment can be completed simply by adjusting the mechanisms on the fixture, significantly improving splicing efficiency and accuracy, reducing the difficulty of final large-screen splicing, and ensuring the full-screen display effect.

[0036] Example 2:

[0037] This embodiment is basically the same as the previous embodiment, except that: the horizontal leveling mechanism is set on the upper surface of the base plate 1, and the horizontal leveling mechanism is used to adjust the horizontal position of the L-shaped placement plate 10.

[0038] The longitudinal leveling mechanism is located inside the transverse leveling mechanism and is used to adjust the transverse position of the L-shaped placement plate 10.

[0039] The horizontal leveling mechanism includes a fixed plate 5 installed on one side of the base plate 1. Several driving components 6 are installed on the upper end of the fixed plate 5. Connecting plates 7 are installed on the output ends of the driving components 6. The driving components 6 are cylinders.

[0040] The upper surface of the base plate 1 is provided with several transverse guide grooves 8, and a transverse adjustment plate 9 is slidably installed inside each of the transverse guide grooves 8. One side of the connecting plate 7 is connected to one side of the transverse adjustment plate 9, and the upper surface of the transverse adjustment plate 9 is movably connected to the L-shaped placement plate 10.

[0041] The longitudinal leveling mechanism includes a longitudinal guide groove 11 opened on the upper end of the transverse adjustment plate 9. Telescopic components 12 are provided on both sides inside the longitudinal guide groove 11. A drive plate 13 is installed at the output end of each of the two telescopic components 12. A longitudinal adjustment plate 14 is installed between the two drive plates 13. The upper surface of the longitudinal adjustment plate 14 is connected to the lower surface of the L-shaped placement plate 10. The longitudinal adjustment plate 14 is slidably connected to the longitudinal guide groove 11. The telescopic component 12 is an electric telescopic rod.

[0042] A track 15 is installed on the upper end of the connecting plate 7, and a lifting plate 16 is slidably installed inside the track 15. The lower surface of the lifting plate 16 is connected to the upper surface of the L-shaped placement plate 10.

[0043] Pressure sensors 4 are installed on the surfaces of both the standard limit plate 2 and the standard upper plate 3.

[0044] Working principle. Lateral leveling process initiated. The driving component 6, cylinder 6, is activated, pushing the connecting plate 7 at its output end to move laterally. The connecting plate 7 then drives the connected lateral adjusting plate 9 to slide along the lateral guide groove 8 opened on the base plate 1.

[0045] Since the L-shaped placement plate 10 is connected to the track 15 on the connecting plate 7 via the lifting plate 16, it mainly moves laterally together with the horizontal adjustment plate 9, pushing the LED box on it to fit against the standard limit plate 2.

[0046] Telescopic component 12 is activated. The two telescopic components 12 synchronously push the drive plate 13 at their output ends, thereby driving the longitudinal adjustment plate 14 to slide along the longitudinal guide groove 11.

[0047] The longitudinal adjustment plate 14 is fixedly connected to the lower surface of the L-shaped placement plate 10, thus driving the L-shaped placement plate 10 and the box on it to move upward, so that the upper edge of the box is in close contact with the lower edge of the standard upper plate 3 as a reference. The structure of the track 15 and the lifting plate 16 at the upper end of the connecting plate 7 ensures the stability of the L-shaped placement plate 10 when moving laterally, and moves synchronously with it when adjusting longitudinally to improve the stability of longitudinal movement.

[0048] Throughout the leveling process, pressure sensors 4 installed on the standard limit plate 2 and the standard upper plate 3 monitor the contact pressure between the housing and the standard limit plate 2 and the standard upper plate 3 in real time. When the pressure value is uniform and reaches the set range, it indicates that the housing has been adjusted to the correct position. The system can automatically stop the movement of the drive component 6 and the telescopic component 12 to prevent over-adjustment or damage to the housing. This makes the entire leveling process intelligent and quantifiable, ensuring product consistency.

[0049] The independently controlled horizontal and vertical leveling mechanisms eliminate misalignment and height differences between the cabinets in both left-right and up-down dimensions. This transforms the traditionally tedious process of manual adjustment into a one-step mechanized operation, improving splicing efficiency and precision. Increased efficiency means operators no longer need to repeatedly touch and visually judge, reducing labor intensity and operational difficulty, while also minimizing human error. Secondly, the fixture uses a unique L-shaped reference structure, the standard limiting plate 2 and the standard upper plate 3, as a common reference system for leveling all cabinets, ensuring that all leveled cabinets meet a uniform flatness standard. This fundamentally eliminates the problem of bright and dark lines on the screen caused by physical misalignment of the cabinets, significantly improving the uniformity and overall visual effect of the final large-screen display. Finally, by adding a pressure sensor 4, the contact force between the cabinet and the standard limiting plate 2 and the standard upper plate 3 can be monitored in real time and quantitatively. The system can automatically stop the drive component 6 based on pressure feedback, realizing intelligent control and overload protection of the leveling process, avoiding damage to the housing that may be caused by excessive adjustment, and ensuring the safety of operation and the consistency of leveling results.

[0050] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fixture for seamless splicing of small-pitch LED cabinets, comprising a base plate (1), characterized in that, The base plate (1) is equipped with several standard limiting plates (2) at its upper end. Each of the standard limiting plates (2) is equipped with a standard upper plate (3). The standard limiting plates (2) and the standard upper plate (3) are perpendicular to each other to form an L-shaped structure. The standard limiting plates (2) and the standard upper plate (3) are used to define the standard installation position of the LED box. L-shaped placement plates (10) are provided in several units, and all of the L-shaped placement plates (10) are provided above the base plate (1). The L-shaped placement plates (10) are used to support the LED cabinet to be assembled. A horizontal leveling mechanism is provided on the upper surface of the base plate (1). The horizontal leveling mechanism is used to adjust the horizontal position of the L-shaped placement plate (10). A longitudinal leveling mechanism is provided inside the transverse leveling mechanism. The longitudinal leveling mechanism is used to adjust the longitudinal position of the L-shaped placement plate (10).

2. The fixture for seamless splicing of small-pitch LED cabinets according to claim 1, characterized in that, The horizontal leveling mechanism includes a fixed plate (5) installed on one side of the base plate (1), and a plurality of driving components (6) are installed on the upper end of the fixed plate (5). A connecting plate (7) is installed on the output end of each of the driving components (6).

3. The fixture for seamless splicing of small-pitch LED cabinets according to claim 2, characterized in that, The upper surface of the base plate (1) is provided with several transverse guide grooves (8), and a transverse adjustment plate (9) is slidably installed inside each of the transverse guide grooves (8). One side of the connecting plate (7) is connected to one side of the transverse adjustment plate (9), and the upper surface of the transverse adjustment plate (9) is movably connected to the L-shaped placement plate (10).

4. The fixture for seamless splicing of small-pitch LED cabinets according to claim 3, characterized in that, The longitudinal leveling mechanism includes a longitudinal guide groove (11) opened on the upper end of the transverse adjustment plate (9). Telescopic components (12) are provided on both sides inside the longitudinal guide groove (11). A drive plate (13) is installed at the output end of each of the two telescopic components (12). A longitudinal adjustment plate (14) is installed between the two drive plates (13). The upper surface of the longitudinal adjustment plate (14) is connected to the lower surface of the L-shaped placement plate (10). The longitudinal adjustment plate (14) is slidably connected to the longitudinal guide groove (11).

5. The fixture for seamless splicing of small-pitch LED cabinets according to claim 4, characterized in that, The upper end of the connecting plate (7) is equipped with a track (15), and a lifting plate (16) is slidably installed inside the track (15). The lower surface of the lifting plate (16) is connected to the upper surface of the L-shaped placement plate (10).

6. The fixture for seamless splicing of small-pitch LED cabinets according to claim 1, characterized in that, Pressure sensors (4) are provided on the surfaces of both the standard limiting plate (2) and the standard upper plate (3).

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