Roll-over stand for welding goods shelf hanging piece and cross beam

Abstract

The utility model is applicable to the technical field of welding auxiliary work, and discloses a turnover frame for welding a goods shelf hanging piece and a cross beam, which comprises a turnover frame, two support frames arranged oppositely, a longitudinal connecting rod, an air cylinder, a first clamping plate, a second clamping plate and a positioning component. According to the turnover frame, the longitudinal connecting rods capable of sliding are arranged on the two transverse connecting rods of the turnover frame, so that goods shelf cross beams with different lengths can be placed on the longitudinal connecting rods, and the positioning assemblies capable of sliding along the transverse connecting rods are arranged on the transverse connecting rods; through the arrangement of the positioning assembly, the goods shelf hanging pieces can abut against the two ends of the cross beams with different lengths while being positioned by the positioning assembly, it is ensured that the goods shelf hanging pieces can be accurately welded to the correct positions of the cross beams, and therefore the universality of the turnover frame is enhanced through the cooperative use of the movable longitudinal connecting rods and the positioning assembly, and the turnover frame is convenient to use. And an enterprise does not need to purchase or design various types of overturning frames for welding.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary work technology, and in particular to a flipping frame for welding shelf hangers and beams. Background Technology

[0002] Shelving is a commonly used storage device in modern logistics and daily life. Welding of shelving beams and hanging plates can be done manually or automatically. Manual welding typically requires a welding tilting frame. The tilting frame allows the beams to be rotated to a convenient angle and position for welding, making welding work easier and improving accessibility and ease of operation. However, existing tilting frames for welding hanging plates and beams have limited versatility, often only suitable for beams of specific lengths. When welding hanging plates to the ends of beams of other lengths, different specifications of welding tilting frames are required, increasing equipment procurement costs for businesses. Furthermore, multiple tilting frames occupy significant workshop space.

[0003] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0004] The present invention provides a flipping frame for welding shelf hanging plates and crossbeams, which aims to solve the problem of limited versatility of existing flipping frames for welding shelf hanging plates and crossbeams.

[0005] To achieve the above objectives, the solution provided by this utility model is as follows:

[0006] This utility model provides a flip frame for welding shelf hanging plates and crossbeams, including a flip frame and two support frames arranged opposite each other; the flip frame is located between the two support frames, and the flip frame includes two longitudinal columns arranged opposite each other and a transverse connecting rod for connecting the longitudinal columns; the two longitudinal columns are respectively rotatably connected to the two support frames; the flip frame also includes a longitudinal connecting rod, a cylinder, a first clamping plate, a second clamping plate, and a positioning assembly;

[0007] At least two longitudinal connecting rods are provided, each longitudinal connecting rod is slidably mounted on two transverse connecting rods, and a first fastening screw is inserted into the longitudinal connecting rod to abut against the transverse connecting rod.

[0008] The cylinder is mounted on the longitudinal connecting rod; the first clamping plate is arranged along the width direction of the longitudinal connecting rod and is connected to the telescopic rod of the cylinder.

[0009] The second clamping plate is mounted on the longitudinal connecting rod, and the second clamping plate is positioned opposite to the first clamping plate.

[0010] The positioning components are arranged in pairs and slidably mounted on the transverse connecting rod. A second fastening screw is inserted into the positioning component to abut against the transverse connecting rod. The positioning component is used to position the L-shaped hanging pieces that abut against both ends of the crossbeam.

[0011] Optionally, the positioning component includes a square positioning tube, a magnet placed on the square positioning tube and magnetically connected to both the square positioning tube and the L-shaped hanging piece, and a first U-shaped sliding member located at the bottom of the square positioning tube; the second fastening screw is threadedly connected to the first U-shaped sliding member.

[0012] Optionally, the first U-shaped sliding member includes a first vertical plate vertically disposed on both sides of the transverse connecting rod and a first horizontal plate located below the transverse connecting rod; the first horizontal plate is detachably connected to both first vertical plates.

[0013] Optionally, a first positioning stop, a second positioning stop, and a positioning support strip are formed on the outer wall of the square positioning tube; the first positioning stop is located on the top surface of the square positioning tube, the second positioning stop and the positioning support strip are both located on the side surface of the square positioning tube, and the upper end of the second positioning stop is connected to the upper end of the first positioning stop, while the lower ends of the positioning support strip and the second positioning stop are connected.

[0014] Optionally, the transverse connecting rod includes a first transverse connecting rod and a second transverse connecting rod; there are two first transverse connecting rods, and the first transverse connecting rods and the two longitudinal columns form a rectangular frame; the second transverse connecting rod is located between the two first transverse connecting rods; a plurality of mounting holes are distributed at intervals along the length direction of the longitudinal connecting rod; the inner wall of the mounting holes has internal threads for mounting the cylinder and the second clamping plate, respectively.

[0015] Optionally, the bottom of the longitudinal connecting rod is provided with a second U-shaped sliding member that slides in cooperation with the first transverse connecting rod; the first fastening screw is threadedly connected to the second U-shaped sliding member.

[0016] Optionally, the second U-shaped sliding member includes a second vertical plate vertically disposed on both sides of the first transverse connecting rod and a second horizontal plate located below the first transverse connecting rod; the second horizontal plate is detachably connected to both second vertical plates.

[0017] Optionally, the support frame includes a horizontally arranged support longitudinal plate and two triangular brackets arranged opposite each other at the bottom of the support longitudinal plate; a bearing seat is provided on the support longitudinal plate, and a rotating rod is connected to the side of the longitudinal column facing the bearing seat, and the other end of the rotating rod is rotatably disposed in the bearing seat.

[0018] Optionally, the tilting frame for welding the shelf hanging plates and crossbeams further includes a drive motor base and a drive motor mounted on the drive motor base; the output shaft of the drive motor is connected to one of the rotating rods via a universal joint coupling.

[0019] Beneficial effects:

[0020] This utility model provides a flip frame for welding shelf hangers and beams. By setting slidable longitudinal connecting rods on the two transverse connecting rods of the flip frame, shelf beams of different lengths can be placed on the longitudinal connecting rods. By setting positioning components that can slide along the transverse connecting rods, the positioning components can position the shelf hangers and also make the shelf hangers abut against the two ends of beams of different lengths, ensuring that the shelf hangers can be accurately welded to the correct position on the beams. Therefore, through the combined use of movable longitudinal connecting rods and positioning components, the versatility of the flip frame is enhanced, and enterprises do not need to purchase or design multiple types of welding flip frames. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the flip frame for welding shelf hanging plates and crossbeams provided by this utility model. Figure 1 .

[0022] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0023] Figure 3 yes Figure 1 Enlarged view of section B.

[0024] Figure 4 yes Figure 1 Enlarged view of section C.

[0025] Figure 5 This is a schematic diagram of the structure of the flip frame for welding shelf hanging plates and crossbeams provided by this utility model. Figure 2 .

[0026] Figure 6 This is a schematic diagram of the positioning component.

[0027] Explanation of icon numbers:

[0028] 1-Tilting frame; 11-Longitudinal column; 12-First transverse connecting rod; 13-Second transverse connecting rod; 14-Longitudinal connecting rod; 141-Mounting hole; 15-Cylinder; 16-First clamping plate; 17-Second clamping plate; 18-Positioning assembly; 181-Square positioning tube; 182-First U-shaped sliding member; 1821-First vertical plate; 1822-First horizontal plate; 183-Magnet; 184-First positioning stop bar; 185-Second positioning stop bar; 186-Positioning support bar; 19-Second U-shaped sliding member; 191-Second vertical plate; 192-Second horizontal plate;

[0029] 2-Support frame; 21-Support longitudinal plate; 22-Triangular bracket;

[0030] 3-Hanging plate; 4-Crossbeam; 5-Bearing housing; 6-Drive motor; 7-Drive motor housing; 8-Rotating rod. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] It should also be noted that when a component is referred to as "fixed to" or "attached to" another component, it can be directly on the other component or may have an intervening component present. When a component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present.

[0034] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0035] Please see Figures 1 to 6 This utility model provides a flipping frame for welding shelf hanging plates and crossbeams, including a flipping frame 1 and two opposing support frames 2. Specifically, the flipping frame 1 is located between the two support frames 2, and the flipping frame 1 includes two opposing longitudinal columns 11 and a transverse connecting rod for connecting the longitudinal columns 11. Here, transverse refers to the length direction of the flipping frame 1, and correspondingly, longitudinal refers to the width direction of the flipping frame 1. In order for the flipping frame 1 to flip relative to the two support frames 2, the two longitudinal columns 11 are rotatably connected to the two support frames 2 respectively.

[0036] Furthermore, the flipping frame 1 also includes a longitudinal connecting rod 14, a cylinder 15, a first clamping plate 16, a second clamping plate 17, and a positioning assembly 18.

[0037] Among them, at least two longitudinal connecting rods 14 are provided. When the shelf hanging piece 3 is welded to both ends of the crossbeam 4, the crossbeam 4 is pre-placed on the longitudinal connecting rods 14 along the length direction of the tilting frame 1. The setting of at least two longitudinal connecting rods 14 ensures that the crossbeam 4 is supported and will not fall off the tilting frame 1.

[0038] Furthermore, each longitudinal connecting rod 14 is slidably mounted on two transverse connecting rods, thereby allowing adjustment of the distance between adjacent longitudinal connecting rods 14 to support beams 4 of varying thicknesses. When adjustment of the distance between the longitudinal connecting rods 14 is not required, a first fastening screw is inserted into the longitudinal connecting rod 14 to abut against the transverse connecting rod, thereby locking the longitudinal connecting rod 14. It is understood that to ensure a stable connection between the two sides of the longitudinal connecting rod 14 and the transverse connecting rods, at least the first fastening screws on both sides of the bottom of the longitudinal connecting rod 14 are necessary to lock it.

[0039] The cylinder 15 is mounted on the longitudinal connecting rod 14, and a cylinder 15 should be mounted on each longitudinal connecting rod 14. The first clamping plate 16 is arranged along the width direction of the longitudinal connecting rod 14 and connected to the telescopic rod of the cylinder 15. The second clamping plate 17 is arranged on the longitudinal connecting rod 14, and the second clamping plate 17 is arranged opposite to the first clamping plate 16. When the crossbeam 4 is placed on the longitudinal connecting rod 14, the telescopic rod of the cylinder 15 is used to drive the first clamping plate 16 to move toward the second clamping plate 17, so that the crossbeam 4 can be clamped by the first clamping plate 16 and the second clamping plate 17 fixedly mounted on the longitudinal connecting rod 14 at the same time. When the shelf hanging piece 3 is welded to both ends of the crossbeam 4, the crossbeam 4 remains fixed, thereby ensuring that the shelf hanging piece 3 is accurately welded to the correct position of the crossbeam 4.

[0040] The positioning component 18 is used to position the L-shaped shelf hangers 3 that abut against both ends of the crossbeam 4. To ensure that both ends of the crossbeam 4 simultaneously abut against the shelf hangers 3, the positioning components 18 are arranged in pairs and slidably mounted on the transverse connecting rod. Before the crossbeam 4 is placed on the longitudinal connecting rod 14, one of the positioning components 18 already has a shelf hanger 3 positioned on it. After the crossbeam 4 is placed on the longitudinal connecting rod 14, one end of the crossbeam 4 can first abut against the shelf hanger 3. Then, the shelf hanger 3 is placed on the other positioning component 18, and the positioning component 18 is moved towards the end of the crossbeam 4, allowing the other end of the crossbeam 4 to abut against the shelf hanger 3. Furthermore, a second fastening screw is inserted into the positioning component 18, abutting against the transverse connecting rod. This second fastening screw locks the positioning component 18, ensuring that the crossbeam 4 remains in this position after abutting against the shelf hangers 3, preventing the shelf hangers 3 from moving and ensuring that the shelf hangers 3 are accurately welded to the correct position on the crossbeam 4.

[0041] This invention features slidable longitudinal connecting rods 14 on the two transverse connecting rods of the flip frame 1, allowing shelf beams 4 of different lengths to be placed on the longitudinal connecting rods 14. Furthermore, by providing a positioning component 18 that can slide along the transverse connecting rods, the positioning component 18 positions the shelf hanging piece 3 while simultaneously ensuring that the shelf hanging piece 3 abuts against both ends of the beams 4 of different lengths. This guarantees that the shelf hanging piece 3 can be accurately welded to the correct position on the beam 4. Therefore, through the combined use of the movable longitudinal connecting rods 14 and the positioning component 18, the versatility of the flip frame 1 is enhanced, eliminating the need for companies to purchase or design multiple types of welding flip frames 1.

[0042] Understandably, in order to ensure that the contact points of the shelf hanging plate 3 and the crossbeam 4 in all four directions are welded, the crossbeam 4 should be staggered from the transverse connecting rod when it is clamped by the first clamping plate 16 and the second clamping plate 17. This way, when the flipping frame 1 is flipped and the back of the flipping frame 1 faces the welding personnel, the transverse connecting rod will not block the contact points of the shelf hanging plate 3 and the crossbeam 4.

[0043] It is understandable that when there are three or more longitudinal connecting rods 14, and each longitudinal connecting rod 14 is equipped with a cylinder 15 for clamping the crossbeam 4, crossbeams 4 of different lengths can be placed simultaneously in the same straight direction. In conjunction with the use of the movable positioning component 18, the versatility of the flipping frame 1 can be further enhanced.

[0044] like Figure 1 , Figure 2 , Figure 4 as well as Figure 6 As shown, optionally, the positioning component 18 includes a square positioning tube 181, a first U-shaped slider 182, and a magnet 183.

[0045] Specifically, the square positioning tube 181 has mutually perpendicular tube walls. This characteristic allows L-shaped shelf hangers 3 to be placed on the square positioning tube 181, so that the vertical portion of the shelf hanger 3 contacts the end of the crossbeam 4. The first U-shaped sliding member 182 is located at the bottom of the square positioning tube 181 and can accommodate the transverse connecting rod, allowing the positioning assembly 18 to slide along the transverse connecting rod. The magnet 183 can be selected according to specific usage requirements. After the shelf hanging plate 3 is placed on the square positioning tube 181, the magnet 183 can be placed at the contact point between the shelf hanging plate 3 and the square positioning tube 181, and simultaneously attracted to the shelf hanging plate 3 and the square positioning tube 181. This ensures that the shelf hanging plate 3 will not move randomly when placed on the directional positioning tube, so that even if the positioning component 18 moves on the transverse connecting rod, the shelf hanging plate 3 can still be correctly positioned on the square positioning tube 181. When the shelf hanging plate 3 abuts against the end of the crossbeam 4, the position of the shelf hanging plate 3 is correct. Thus, after the shelf hanging plate 3 is welded to the crossbeam 4, the crossbeam 4 with the hanging plate 3 can be used to assemble the shelf.

[0046] like Figure 4 As shown, optionally, the first U-shaped sliding member 182 includes a first vertical plate 1821 vertically disposed on both sides of the transverse connecting rod and a first horizontal plate 1822 located below the transverse connecting rod. Specifically, the first vertical plate 1821 can be fixed to the bottom of the square positioning tube 181 by welding, or it can be integrally formed with the square positioning tube 181. The first horizontal plate 1822 is detachably connected to both first vertical plates 1821 (e.g., by bolts), which allows the positioning assembly 18 to be removed from the transverse connecting rod, thereby solving the problem that the positioning assembly 18 cannot be moved to other areas of the transverse connecting rod due to the obstruction of the longitudinal connecting rod 14.

[0047] like Figure 6 As shown, optionally, a first positioning stop 184, a second positioning stop 185, and a positioning support strip 186 are formed on the outer wall of the square positioning tube 181. The first positioning stop 184 is located on the top surface of the square positioning tube 181, and the second positioning stop 185 and the positioning support strip 186 are both located on the side surface of the square positioning tube 181. The second positioning stop 185 is connected to the upper end of the first positioning stop 184, and the positioning support strip 186 is connected to the lower end of the second positioning stop 185. The formation of the first positioning stop 184, the second positioning stop 185, and the positioning support strip 186 makes it possible to form a placement position on the square positioning tube 181 that matches the shape of the shelf hanging piece 3, so as to facilitate the quick placement of the shelf hanging piece 3 on the square positioning tube 181. When the shelf hanging piece 3 is placed on the square positioning tube 181, the lower part of the shelf hanging piece 3 contacts the positioning support strip 186, and the L-shaped side surface of the shelf hanging piece 3 is blocked by the first positioning stop 184 and the second positioning stop 185 respectively.

[0048] It is understandable that the square positioning tubes 181 located at both ends of the crossbeam 4 are mirror images of each other.

[0049] like Figure 1 As shown, optionally, the transverse link includes a first transverse link 12 and a second transverse link 13; there are two first transverse links 12, and the first transverse links 12 and the two longitudinal columns 11 form a rectangular frame; while the second transverse link 13 is located between the two first transverse links 12, and a sliding positioning component 18 can also be placed on it, so that the crossbeam 4 can also be placed on the longitudinal link 14 located in the inner area of ​​the rectangular frame, and the two ends of the crossbeam 4 abut against the shelf hanging piece 3. In this way, while improving the versatility of the flipping frame 1, the welding efficiency is also improved because more crossbeams 4 can be placed on the flipping frame 1 at the same time.

[0050] When a crossbeam 4 is placed on the longitudinal connecting rod 14 located in the inner region of the rectangular frame, in order to clamp and fix the crossbeam 4, a plurality of mounting holes 141 are distributed at intervals along the length direction of the longitudinal connecting rod 14. The inner wall of the mounting holes 141 has internal threads for mounting the cylinder 15 and the second clamping plate 17, respectively. In this way, the positions of the cylinder 15 and the second clamping plate 17 can be adjusted based on the position of the crossbeam 4 to be clamped.

[0051] Specifically, the cylinder 15 is provided with a mounting base at its bottom, and the second clamping plate 17 is L-shaped, so that threaded holes corresponding to the mounting hole 141 can be provided on the mounting base and the second clamping plate 17, and the cylinder 15 and the second clamping plate 17 can be installed by bolts or other threaded connectors.

[0052] like Figure 1 and Figure 3 As shown, optionally, the bottom of the longitudinal connecting rod 14 is provided with a second U-shaped sliding member 19 that slides with the first transverse connecting rod 12; the first fastening screw is threadedly connected to the second U-shaped sliding member 19. The second U-shaped sliding member 19 is disposed at the bottom of the longitudinal connecting rod 14 and can accommodate the first transverse connecting rod 12, so that the longitudinal connecting rod 14 can slide along the first transverse connecting rod 12. Since the sliding connection between the longitudinal connecting rod 14 and the two first transverse connecting rods 12 can ensure the movement of the longitudinal connecting rod 14, it is not necessary to provide a U-shaped sliding member at the bottom of the longitudinal connecting rod 14 to connect with the second transverse connecting rod 13.

[0053] like Figure 1 and Figure 3As shown, optionally, the second U-shaped sliding member 19 includes a second vertical plate 191 vertically disposed on both sides of the first transverse connecting rod 12 and a second horizontal plate 192 located below the first transverse connecting rod 12; the second horizontal plate 192 is detachably connected to both second vertical plates 191. Specifically, the second vertical plate 191 can be fixed to the bottom of the longitudinal connecting rod 14 by welding. The second horizontal plate 192 is detachably connected to both second vertical plates 191 (e.g., by bolts), which allows the longitudinal connecting rod 14 to be removed from the first transverse connecting rod 12, realizing flexible customization of the tilting frame 1.

[0054] like Figure 1 As shown, optionally, the support frame 2 includes a horizontally arranged support longitudinal plate 21 and two triangular brackets 22 arranged opposite each other at the bottom of the support longitudinal plate 21; a bearing seat 5 is provided on the support longitudinal plate 21, and a rotating rod 8 is connected to the side of the longitudinal column 11 facing the bearing seat 5, and the other end of the rotating rod is rotatably disposed in the bearing seat 5.

[0055] Specifically, two triangular supports 22 are arranged opposite each other at the bottom of the supporting longitudinal plate 21, making the structure of the support frame 2 more stable. This allows for stable support of the tilting frame 1, providing a stable operating platform for welding operations and ensuring smooth welding. The longitudinal column 11 is rotatably connected to the bearing seat 5 on the supporting longitudinal plate 21 via a rotating rod, allowing the tilting frame 1 to rotate flexibly around the rotating rod and be easily adjusted to different angles. During welding, operators can rotate the tilting frame 1 to a position that is easy to operate according to actual welding needs, improving welding accessibility and enabling welders to more easily weld various parts of the shelf hanging plate 3 and the crossbeam 4, thus improving welding quality and efficiency.

[0056] like Figure 1 As shown, optionally, the shelf hanging plate 3 and crossbeam 4 using the flipping frame 1 also include a drive motor base 7 and a drive motor 6 mounted on the drive motor base 7; the output shaft of the drive motor 6 is connected to one of the rotating rods via a universal joint coupling (not shown in the attached figure). Specifically, the drive motor 6 and the universal joint coupling provide stable power to achieve smooth flipping of the flipping frame 1. The drive motor 6, connected to the rotating rod via the universal joint coupling, provides stable power for the rotation of the flipping frame 1. The universal joint coupling can compensate for installation errors and relative displacements between the drive motor 6 and the rotating rod, making power transmission smoother and ensuring the stability of the flipping frame 1 during flipping without jamming or shaking.

[0057] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A flip-over frame for welding shelf hanging plates and crossbeams, comprising a flip-over frame and two opposing support frames; the flip-over frame is located between the two support frames, and the flip-over frame includes two opposing longitudinal columns and a transverse connecting rod for connecting the longitudinal columns; the two longitudinal columns are respectively rotatably connected to the two support frames; characterized in that, The tilting frame also includes a longitudinal connecting rod, a cylinder, a first clamping plate, a second clamping plate, and a positioning assembly; At least two longitudinal connecting rods are provided, each longitudinal connecting rod is slidably mounted on two transverse connecting rods, and a first fastening screw is inserted into the longitudinal connecting rod to abut against the transverse connecting rod. The cylinder is mounted on the longitudinal connecting rod; the first clamping plate is arranged along the width direction of the longitudinal connecting rod and is connected to the telescopic rod of the cylinder. The second clamping plate is mounted on the longitudinal connecting rod, and the second clamping plate is positioned opposite to the first clamping plate. The positioning components are arranged in pairs and slidably mounted on the transverse connecting rod. A second fastening screw is inserted into the positioning component to abut against the transverse connecting rod. The positioning component is used to position the L-shaped hanging pieces that abut against both ends of the crossbeam.

2. The flip-over frame for welding shelf hanging plates and beams according to claim 1, characterized in that, The positioning component includes a square positioning tube, a magnet placed on the square positioning tube and magnetically connected to both the square positioning tube and the L-shaped hanging piece, and a first U-shaped sliding member located at the bottom of the square positioning tube; the second fastening screw is threadedly connected to the first U-shaped sliding member.

3. The flip-over frame for welding shelf hanging plates and crossbeams according to claim 2, characterized in that, The first U-shaped sliding member includes a first vertical plate vertically disposed on both sides of the transverse connecting rod and a first horizontal plate located below the transverse connecting rod; the first horizontal plate is detachably connected to both first vertical plates.

4. The flip-over frame for welding shelf hanging plates and crossbeams according to claim 2, characterized in that, The outer wall of the square positioning tube is formed with a first positioning stop, a second positioning stop, and a positioning support strip; the first positioning stop is located on the top surface of the square positioning tube, the second positioning stop and the positioning support strip are both located on the side of the square positioning tube, and the upper end of the second positioning stop is connected to the upper end of the first positioning stop, while the lower ends of the positioning support strip and the second positioning stop are connected.

5. The flip-over frame for welding shelf hanging plates and beams according to claim 1, characterized in that, The transverse connecting rod includes a first transverse connecting rod and a second transverse connecting rod; there are two first transverse connecting rods, and the first transverse connecting rods and the two longitudinal columns form a rectangular frame; the second transverse connecting rod is located between the two first transverse connecting rods; the longitudinal connecting rod has a plurality of mounting holes spaced apart along the length direction of the longitudinal connecting rod; the inner wall of the mounting holes has internal threads for mounting the cylinder and the second clamping plate, respectively.

6. The flip-over frame for welding shelf hanging plates and crossbeams according to claim 4, characterized in that, The bottom of the longitudinal connecting rod is provided with a second U-shaped sliding member that slides in cooperation with the first transverse connecting rod; the first fastening screw is threadedly connected to the second U-shaped sliding member.

7. The flip-over frame for welding shelf hanging plates and beams according to claim 6, characterized in that, The second U-shaped sliding member includes a second vertical plate vertically disposed on both sides of the first transverse connecting rod and a second horizontal plate located below the first transverse connecting rod; the second horizontal plate is detachably connected to both second vertical plates.

8. The flip-over frame for welding shelf hanging plates and beams according to claim 1, characterized in that, The support frame includes a horizontally arranged support longitudinal plate and two triangular brackets arranged opposite each other at the bottom of the support longitudinal plate; a bearing seat is provided on the support longitudinal plate, and a rotating rod is connected to the side of the longitudinal column facing the bearing seat, and the other end of the rotating rod is rotatably disposed in the bearing seat.

9. The flip-over frame for welding shelf hanging plates and beams according to claim 6, characterized in that, It also includes a drive motor mount and a drive motor mounted on the drive motor mount; the output shaft of the drive motor is connected to one of the rotating rods via a universal joint coupling.

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