LED support profile clamp

Abstract

The utility model discloses an LED support profile clamp which comprises a base, a reference block, an extrusion assembly and a material pressing assembly, the base is horizontally arranged, and at least two clamping spaces are arranged on the base; the number of the reference blocks is at least two, and the at least two reference blocks are arranged on the base at intervals in the directions of the front side edge and the rear side edge of the base. The at least two sets of extrusion assemblies are arranged between the front clamping space and the rear clamping space in the left-right direction in a spaced mode. The number of the material pressing assemblies is at least two, and the at least two material pressing assemblies are arranged between the front clamping space and the rear clamping space at intervals in the acting direction, do lifting motion in the vertical direction and are used for pressing the LED support profile from the upper portion. A plurality of LED support profiles can be clamped and fixed at the same time, accurate positioning and fixing in the horizontal plane are achieved through mutual matching of the reference block and the extrusion assembly, and synchronous downward pressing fixing and material taking and placing space avoiding on the front side and the rear side are achieved through single lifting power.

Description

Technical Field

[0001] The utility model relates to the field of LED screen assembly, in particular to an LED bracket profile clamp. Background Art

[0002] LED large screens are the development trend of the advertising industry. They are indoor and outdoor advertising display equipment with audio and video functions. Their area can be adjusted at will. They can not only play audio and video advertising programs, but also install fixed light box advertising positions on all four sides. Outdoor LED large screens are ideal substitutes for canvas advertising and light box advertising. Outdoor full-color LED large screens are widely used in public places, advertising, urban road networks, urban parking lots, railways, subways and other traffic guidance systems, highways, etc. The size of large LED screens is more than 1000mm. Therefore, in the actual assembly process, large LED screens are generally assembled by splicing multiple unit screens of equal area together, which can greatly reduce the moving space and the damage caused during the screen transportation process. The size of LED unit screens is generally more than 100mm, and in the assembly process, LED bracket profiles are needed as the bearing support structure of the unit screen. After the LED bracket profiles are assembled and spliced, the LED unit screens are placed in multiple LED bracket profiles that are spliced ​​together. Therefore, the assembly accuracy of LED bracket profiles directly affects the assembly accuracy of LED screens.

[0003] LED bracket profiles are generally strip-shaped structures. After the production of LED bracket profiles is completed, multiple LED bracket profiles need to be clamped and positioned before splicing and assembly to ensure the position accuracy of the LED bracket profiles before assembly; in addition, the LED bracket profiles also need to be clamped and fixed when transporting them; therefore, based on actual production needs, it is necessary to design a fixture that can clamp, fix and position LED bracket profiles. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an LED bracket profile clamp that can clamp and fix multiple LED bracket profiles at the same time, cooperate with the reference block and the extrusion component to achieve precise positioning and fixation in the horizontal plane, and realize synchronous downward pressing and fixing on the front and rear sides and taking and releasing materials to avoid air through a single lifting power.

[0005] The technical solution adopted by the utility model is as follows: an LED bracket profile clamp, used for clamping LED bracket profiles, including a base, a reference block, an extrusion assembly and a pressing assembly, wherein the base is horizontally arranged, and at least two clamping spaces are provided on the base, and at least two clamping spaces are symmetrically arranged along the front and rear directions, and are used to place at least two LED bracket profiles; the reference block includes at least two blocks, and at least two reference blocks are arranged on the base at intervals along the front side and rear side directions of the base, and extend upward, and are used to provide a positioning reference for the LED bracket profile in the clamping space from the front side or the rear side; the extrusion assembly includes at least two groups, and at least two groups of extrusion assemblies are arranged between the front and rear clamping spaces at intervals along the left and right directions, and move up and down in the vertical direction, and squeeze the LED bracket profile in the clamping space from the middle to the front and rear sides during the lifting movement; the pressing assembly includes at least two groups, and at least two groups of pressing assemblies are arranged between the front and rear clamping spaces at intervals along the action direction, and move up and down in the vertical direction, and are used to press the LED bracket profile from the top.

[0006] Preferably, at least two groups of bearing and positioning columns are provided on the base, and the at least two groups of bearing and positioning columns are respectively arranged in at least two groups of clamping spaces for bearing the LED bracket profile and extending into the embedded holes at the bottom of the LED bracket profile for bearing and positioning the LED bracket profile.

[0007] Preferably, the base is also provided with an end limit assembly, which includes an end positioning block; the end positioning blocks include at least two groups, two by two in a group, respectively arranged at the left and right ends of the clamping space, for positioning the LED bracket profile from the left and right sides.

[0008] Preferably, the end limit assembly also includes an end limit column; the end limit column is arranged between the left and right clamping spaces, and can move vertically and freely on the base, and is driven by a driving cylinder arranged at the bottom of the base to move up and down, so as to limit the LED bracket profile in the left and right clamping spaces.

[0009] Preferably, the extrusion assembly is arranged between the front and rear reference blocks, and the extrusion assembly includes an extrusion cylinder, an extrusion support plate, a connecting block and an extrusion block, wherein the extrusion support plate is horizontally arranged on the base; the extrusion cylinder is connected and fixed below the extrusion support plate, and the output end extends upward through the through hole opened on the extrusion support plate; the connecting block is arranged above the extrusion support plate and fixed on the output end of the extrusion cylinder; the extrusion block includes two blocks, and the two extrusion blocks are respectively arranged on the front and rear side walls of the connecting block, and mounting holes are opened on the side walls, and are fixedly connected to the connecting block by inserting screws in the mounting holes.

[0010] Preferably, the pressing assembly includes a pressing cylinder, a pressing rod, a pressing support, a first pressing block and a second pressing block, wherein the pressing support includes two blocks, the two pressing supports are arranged on the base with a front-to-back interval and fixedly connected to the base; the pressing cylinder is connected to the lower part of the two pressing supports, and the output end is arranged upward; the pressing rod is vertically connected to the output end of the pressing cylinder and extends upward through the base.

[0011] Preferably, the press support is provided with a protruding block protruding upward; the first press block and the second press block are respectively arranged above the protrusions of the two press supports; the front and rear sides of the first press block and the second press block are respectively connected to the protrusions through a rotating plate; the lower part of the rotating plate is rotatably connected to the protrusion through a rotating shaft, and the upper part of the rotating plate is rotatably connected to the side wall of the first press block or the second press block through a rotating shaft.

[0012] Preferably, a first U-shaped mounting groove and a second U-shaped mounting groove are respectively provided on the side where the first pressing block and the second pressing block are close to each other; the first U-shaped mounting groove is nested outside the pressing rod; the second U-shaped mounting groove is nested outside the first U-shaped mounting groove; the first U-shaped mounting groove, the second U-shaped mounting groove and the pressing rod are rotatably connected through a connecting shaft; when the pressing cylinder drives the pressing rod to move upward, the pressing rod drives the first pressing block and the second pressing block to move in the horizontal direction to respectively press down the LED bracket profiles in the clamping space on the front and rear sides; when the pressing rod moves downward, the first pressing block and the second pressing block move in the vertical direction so as to take and place the LED bracket profiles in the clamping space.

[0013] The beneficial effects of the utility model are:

[0014] In view of the defects and shortcomings of the prior art, the utility model independently developed and designed a LED bracket profile clamp that can clamp and fix multiple LED bracket profiles at the same time, cooperate with the reference block and the extrusion component to achieve precise positioning and fixation in the horizontal plane, and use a single lifting power to achieve synchronous downward pressing and fixing on the front and rear sides and to take and release materials to avoid air.

[0015] The utility model is applied to the field of LED screen assembly, and aims to provide a clamp for assisting clamping and fixing of LED bracket profiles during their splicing or transportation after their production, so as to realize the clamping, fixing and precise positioning of multiple LED bracket profiles. Specifically, the utility model uses a horizontally arranged base as a bearing structure, and the base is a rectangular structure. Four clamping spaces are arranged on the upper part of the base according to the size of the LED bracket profile to be clamped, and the four clamping spaces are arranged symmetrically in the front, back, left and right directions (in actual application, the number of clamping spaces can be increased or reduced according to the size of the LED bracket profile and the number of clamping requirements); in each clamping space, a plurality of groups of bearing positioning columns are arranged, and the bearing positioning columns are arranged in groups of two, and the top of the bearing positioning columns is a conical structure, which is used to suspend the LED bracket profile placed in the clamping space, and can also be embedded upward into the embedding hole at the bottom of the LED bracket profile to accurately position the LED bracket profile; in addition, in each clamping space near the front side or rear side of the base A plurality of reference blocks are arranged at intervals on the side, and the reference blocks extend upward, and use a side wall close to the clamping space as a positioning reference surface; in addition, a plurality of groups of extrusion components and pressing components are arranged in the gap space between the front and rear clamping spaces. After the LED bracket profiles are placed in the four clamping spaces, the extrusion cylinder of the extrusion component drives the connection block to drive the extrusion blocks connected to the front and rear side walls to move from top to bottom, and the front and rear extrusion blocks enter between the front and rear LED bracket profiles respectively, and respectively squeeze and fix the two LED bracket profiles to the reference blocks arranged on the front and rear sides in the front and rear directions, thereby simultaneously achieving the clamping and fixing of the front and rear LED bracket profiles and ensuring the precise positioning of the LED bracket profile in the front and rear directions. After the extrusion component presses and fixes the LED bracket profile, the pressing cylinder of the pressing component drives the pressing rod to simultaneously drive the middle connecting ends of the first pressing block and the second pressing block on the front and rear sides to move upward, so that the outer ends of the first pressing block and the second pressing block are respectively rotated to the horizontal direction, and the LED bracket profiles on the front and rear sides are respectively pressed from above, so as to achieve the pressing and fixing of the LED bracket profile from above. The pressing assembly of the utility model connects the first pressing block and the second pressing block rotatably to the two pressing supports through a rotating plate, and is rotatably connected to the top of the pressing rod through the first U-shaped groove and the second U-shaped mounting groove. When the pressing material needs to be fixed, the pressing rod can simultaneously drive the outer sides of the first pressing block and the second pressing block to press down the LED bracket profile when moving upward. When the material needs to be taken out or released, the pressing rod moves downward, driving the middle sides of the first pressing block and the second pressing block to descend, so that their outer ends rotate in the vertical direction, thereby effectively avoiding movement interference when taking out or releasing the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the three-dimensional structural schematic diagrams of the utility model.

[0017] Figure 2This is the second schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model after the LED bracket profile is hidden.

[0019] Figure 4 This is one of the three-dimensional structural schematic diagrams of the material pressing assembly of the utility model.

[0020] Figure 5 This is the second three-dimensional structural schematic diagram of the material pressing assembly of the utility model.

[0021] Figure 6 This is one of the three-dimensional structural schematic diagrams of the extrusion assembly of the utility model.

[0022] Figure 7 This is the second three-dimensional structural schematic diagram of the extrusion assembly of the utility model. DETAILED DESCRIPTION

[0023] 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.

[0024] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] like Figures 1 to 3As shown, the utility model proposes an LED bracket profile clamp for clamping LED bracket profiles, comprising a base 1, a reference block 3, an extrusion assembly 4 and a pressing assembly 5, wherein the base 1 is arranged horizontally, and at least two clamping spaces are provided on the base 1, and the at least two clamping spaces are symmetrically arranged along the front and rear directions, and are used to place at least two LED bracket profiles 0; the reference block 3 includes at least two blocks, and at least two reference blocks 3 are arranged on the base 1 along the front side and rear side directions of the base 1, and extend upward, and are used to provide a positioning reference for the LED bracket profile 0 in the clamping space from the front side or the rear side; the extrusion assembly 4 includes at least two groups, and at least two groups of extrusion assemblies 4 are arranged between the front and rear clamping spaces along the left and right directions, and move up and down in the vertical direction, and squeeze the LED bracket profile 0 in the clamping space from the middle to the front and rear sides during the lifting movement; the pressing assembly 5 includes at least two groups, and at least two groups of pressing assemblies 5 are arranged between the front and rear clamping spaces along the action direction, and move up and down in the vertical direction, and are used to press the LED bracket profile 0 from the top. Example 1

[0027] like Figures 1 to 3 As shown, as an embodiment of the utility model, at least two groups of bearing and positioning columns 2 are arranged on the base 1 of this embodiment, and the at least two groups of bearing and positioning columns 2 are respectively arranged in at least two groups of clamping spaces, for carrying the LED bracket profile 0, and extending into the bottom embedded hole of the LED bracket profile 0, for carrying and positioning the LED bracket profile 0. Example 2

[0028] like Figure 6 to Figure 7 As shown, as an embodiment of the utility model, the extrusion assembly 4 of this embodiment is arranged between the front and rear reference blocks 3, and the extrusion assembly 4 includes an extrusion cylinder 41, an extrusion support plate 42, a connecting block 43 and an extrusion block 44, wherein the extrusion support plate 42 is horizontally arranged on the base 1; the extrusion cylinder 41 is connected and fixed below the extrusion support plate 42, and the output end extends upward through the through hole D opened on the extrusion support plate 42; the connecting block 43 is arranged above the extrusion support plate 42 and fixed on the output end of the extrusion cylinder 41; the extrusion block 44 includes two blocks, and the two extrusion blocks 44 are respectively arranged on the front and rear side walls of the connecting block 43, and the side walls thereof are provided with mounting holes E, and are fixedly connected to the connecting block 43 by inserting screws in the mounting holes E. Example 3

[0029] like Figures 4 to 5As shown, as an embodiment of the utility model, the pressing assembly 5 of this embodiment includes a pressing cylinder 51, a pressing rod 52, a pressing support 53, a first pressing block 54 and a second pressing block 55, wherein the pressing support 53 includes two blocks, and the two pressing supports 53 are arranged on the base 1 with a front-to-back interval and fixedly connected to the base 1; the pressing cylinder 51 is connected to the lower part of the two pressing supports 53, and the output end is arranged upward; the pressing rod 52 is vertically connected to the output end of the pressing cylinder 51, and extends upward through the base 1.

[0030] A protruding block A is provided on the press support 53; the first press block 54 and the second press block 55 are respectively arranged above the protrusions A of the two press supports 53; the front and rear sides of the first press block 54 and the second press block 55 are respectively connected to the protrusion A through a rotating plate 57; the lower part of the rotating plate 57 is rotatably connected to the protrusion A through a rotating shaft, and the upper part of the rotating plate 57 is rotatably connected to the side wall of the first press block 54 or the second press block 55 through a rotating shaft.

[0031] The first pressing block 54 and the second pressing block 55 are respectively provided with a first U-shaped mounting groove C and a second U-shaped mounting groove B on one side close to each other; the first U-shaped mounting groove C is nested outside the pressing rod 52; the second U-shaped mounting groove B is nested outside the first U-shaped mounting groove C; the first U-shaped mounting groove C, the second U-shaped mounting groove B and the pressing rod 52 are rotatably connected through a connecting shaft 56; when the pressing cylinder 51 drives the pressing rod 52 to move upward, the pressing rod 52 drives the first pressing block 54 and the second pressing block 55 to move horizontally to respectively press down the LED bracket profile 0 in the front and rear clamping spaces; when the pressing rod 52 moves downward, the first pressing block 54 and the second pressing block 55 move vertically so as to take and place the LED bracket profile 0 in the clamping space. Example 4

[0032] like Figures 1 to 3 As shown, as an embodiment of the utility model, an end limit assembly is also provided on the base 1 of this embodiment, and the end limit assembly includes an end positioning block 6; the end positioning block 6 includes at least two groups, and the end positioning blocks 6 are grouped in pairs, respectively arranged at the left and right ends of the clamping space, for positioning the LED bracket profile 0 from the left and right sides. Example 5

[0033] like Figures 1 to 3 As shown, as an embodiment of the utility model, the end limit assembly of this embodiment also includes an end limit column 7; the end limit column 7 is arranged between the left and right clamping spaces, and moves vertically freely on the base 1, and is driven by a driving cylinder 8 arranged at the bottom of the base 1 to move up and down, so as to limit the LED bracket profile 0 in the left and right clamping spaces.

[0034] Furthermore, the utility model designs a fixture for LED bracket profiles that can simultaneously clamp and fix multiple LED bracket profiles, cooperate with the reference block and the extrusion assembly to achieve precise positioning and fixation in the horizontal plane, and achieve simultaneous pressing and fixing on both sides of the front and back and taking and releasing materials to avoid air through a single lifting power. The utility model is applied to the field of LED screen assembly, and aims to provide a fixture for auxiliary clamping and fixing of LED bracket profiles during their splicing or transportation after production, so as to achieve clamping, fixing and precise positioning of multiple LED bracket profiles. Specifically, the utility model uses a horizontally arranged base as a bearing structure, and the base is a rectangular structure. Four clamping spaces are arranged on the upper part of the base according to the size of the LED bracket profile to be clamped, and the four clamping spaces are symmetrically arranged in the front, back, left and right directions (in actual application, the number of clamping spaces can be increased or reduced according to the size of the LED bracket profile and the number of clamping requirements); a plurality of groups of bearing positioning columns are arranged in each clamping space, and the bearing positioning columns are grouped in pairs, and the top of the bearing positioning columns is a conical structure, which is used to suspend the LED bracket profile placed in the clamping space, and can also be embedded upward into the embedding hole at the bottom of the LED bracket profile to accurately position the LED bracket profile; in addition, in each clamping space near the front side or rear side of the base A plurality of reference blocks are arranged at intervals on the side, and the reference blocks extend upward, and use a side wall close to the clamping space as a positioning reference surface; in addition, a plurality of groups of extrusion components and pressing components are arranged in the gap space between the front and rear clamping spaces. After the LED bracket profiles are placed in the four clamping spaces, the extrusion cylinder of the extrusion component drives the connection block to drive the extrusion blocks connected to the front and rear side walls to move from top to bottom, and the front and rear extrusion blocks enter between the front and rear LED bracket profiles respectively, and respectively squeeze and fix the two LED bracket profiles to the reference blocks arranged on the front and rear sides in the front and rear directions, thereby simultaneously achieving the clamping and fixing of the front and rear LED bracket profiles and ensuring the precise positioning of the LED bracket profile in the front and rear directions. After the extrusion component presses and fixes the LED bracket profile, the pressing cylinder of the pressing component drives the pressing rod to simultaneously drive the middle connecting ends of the first pressing block and the second pressing block on the front and rear sides to move upward, so that the outer ends of the first pressing block and the second pressing block are respectively rotated to the horizontal direction, and the LED bracket profiles on the front and rear sides are respectively pressed from above, so as to achieve the pressing and fixing of the LED bracket profile from above. The pressing assembly of the utility model connects the first pressing block and the second pressing block rotatably to the two pressing supports through a rotating plate, and is rotatably connected to the top of the pressing rod through the first U-shaped groove and the second U-shaped mounting groove. When the pressing material needs to be fixed, the pressing rod can simultaneously drive the outer sides of the first pressing block and the second pressing block to press down the LED bracket profile when moving upward. When the material needs to be taken out or released, the pressing rod moves downward, driving the middle sides of the first pressing block and the second pressing block to descend, so that their outer ends rotate in the vertical direction, thereby effectively avoiding movement interference when taking out or releasing the material.

[0035] The embodiments of the utility model are only to introduce its specific implementation methods and are not intended to limit its protection scope. The technicians in this industry can make some modifications inspired by the embodiments, so any equivalent changes or modifications made in accordance with the scope of the utility model patent are within the scope of the claims of the utility model patent.

Claims

1. An LED bracket profile clamp, used for clamping LED bracket profiles, characterized in that: It comprises a base (1), a reference block (3), an extrusion assembly (4) and a material pressing assembly (5), wherein: The base (1) is arranged horizontally, and at least two clamping spaces are provided on the base (1), and the at least two clamping spaces are arranged symmetrically and spaced apart in the front-to-back direction, and are used to place at least two LED bracket profiles (0); The reference blocks (3) include at least two blocks, and the at least two reference blocks (3) are arranged on the base (1) at intervals along the front side and the rear side of the base (1) and extend upwards, and are used to provide a positioning reference for the LED bracket profile (0) in the clamping space from the front side or the rear side; The extrusion components (4) include at least two groups, and the at least two groups of extrusion components (4) are arranged between the front and rear clamping spaces at intervals in the left-right direction, and move up and down in the vertical direction, and when moving up and down, they squeeze the LED bracket profile (0) in the clamping space from the middle to the front and rear sides; The pressing components (5) comprise at least two groups, and the at least two groups of pressing components (5) are arranged between the front and rear clamping spaces at intervals along the action direction, and move up and down in the vertical direction to press the LED bracket profile (0) from above.

2. The LED bracket profile fixture according to claim 1, characterized in that: At least two groups of bearing and positioning columns (2) are arranged on the base (1), and the at least two groups of bearing and positioning columns (2) are respectively arranged in at least two groups of clamping spaces, and are used to bear the LED bracket profile (0), and extend into the bottom embedded holes of the LED bracket profile (0), and are used to bear and position the LED bracket profile (0).

3. The LED bracket profile fixture according to claim 1, characterized in that: The base (1) is also provided with an end limit assembly, which includes an end positioning block (6); the end positioning blocks (6) include at least two groups, and the end positioning blocks (6) are arranged in groups of two, respectively, at the left and right ends of the clamping space, and are used to position the LED bracket profile (0) from the left and right sides.

4. The LED bracket profile fixture according to claim 3, characterized in that: The end limit assembly further comprises an end limit column (7); the end limit column (7) is arranged between the left and right clamping spaces and is free to move vertically on the base (1), and is driven by a driving cylinder (8) arranged at the bottom of the base (1) to move up and down, so as to limit the LED bracket profile (0) in the left and right clamping spaces.

5. The LED bracket profile fixture according to claim 1, characterized in that: The extrusion assembly (4) is arranged between the front and rear reference blocks (3), and comprises an extrusion cylinder (41), an extrusion support plate (42), a connection block (43) and an extrusion block (44), wherein the extrusion support plate (42) is arranged horizontally on the base (1); the extrusion cylinder (41) is connected and fixed below the extrusion support plate (42), and the output end extends upward through a through hole (D) provided on the extrusion support plate (42); the connection block (43) is arranged above the extrusion support plate (42) and fixed on the output end of the extrusion cylinder (41); the extrusion block (44) comprises two extrusion blocks (44), which are respectively arranged on the front and rear side walls of the connection block (43), and the side walls thereof are provided with mounting holes (E), and are fixedly connected to the connection block (43) by inserting screws in the mounting holes (E).

6. The LED bracket profile fixture according to claim 1, characterized in that: The pressing assembly (5) comprises a pressing cylinder (51), a pressing rod (52), a pressing support (53), a first pressing block (54) and a second pressing block (55), wherein the pressing support (53) comprises two blocks, the two pressing supports (53) are arranged on the base (1) with a front-to-back spacing and are fixedly connected to the base (1); the pressing cylinder (51) is connected to the lower part of the two pressing supports (53), and the output end is arranged upward; the pressing rod (52) is vertically connected to the output end of the pressing cylinder (51), and passes through the base (1) to extend upward.

7. The LED bracket profile fixture according to claim 6, characterized in that: The press support (53) is provided with a protruding block (A) protruding upward; the first press block (54) and the second press block (55) are respectively arranged above the protruding blocks (A) of the two press supports (53); the front and rear sides of the first press block (54) and the second press block (55) are respectively connected to the protruding blocks (A) through a rotating plate (57); the lower part of the rotating plate (57) is rotatably connected to the protruding block (A) through a rotating shaft, and the upper part of the rotating plate (57) is rotatably connected to the side wall of the first press block (54) or the second press block (55) through a rotating shaft.

8. The LED bracket profile fixture according to claim 7, characterized in that: A first U-shaped mounting groove (C) and a second U-shaped mounting groove (B) are respectively provided on the side where the first pressing block (54) and the second pressing block (55) are close to each other; the first U-shaped mounting groove (C) is nested outside the pressing rod (52); the second U-shaped mounting groove (B) is nested outside the first U-shaped mounting groove (C); the first U-shaped mounting groove (C), the second U-shaped mounting groove (B) and the pressing rod (52) are rotatably connected via a connecting shaft (56); when the pressing cylinder (51) drives the pressing rod (52) to move upward, the pressing rod (52) drives the first pressing block (54) and the second pressing block (55) to move in a horizontal direction to respectively press down the LED bracket profile (0) in the front and rear clamping spaces; when the pressing rod (52) moves downward, the first pressing block (54) and the second pressing block (55) move in a vertical direction so as to take and place the LED bracket profile (0) in the clamping space.

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