Control cabinet body bending device

By combining hydraulic drive and positioning components, the control cabinet can be bent simultaneously on all four sides, solving the problems of high repetitiveness and low efficiency in existing technologies, and improving production efficiency and processing quality.

CN224222553UActive Publication Date: 2026-05-12ZHONGLE COMM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGLE COMM TECH CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-12

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Abstract

The utility model relates to the technical field of control cabinet production, in particular to a control cabinet body bending device which comprises a machine box, a working table is fixedly installed on the top of the machine box, a cabinet body plate is placed on the top face of the working table, and a positioning assembly used for positioning the cabinet body plate is arranged on the working table. Mounting grooves are formed in the two ends of the bottom of the workbench, hydraulic cylinders are mounted on the inner walls of the mounting grooves, lifting frames extending out of the case are mounted at the piston ends of the hydraulic cylinders, the same lifting frame is mounted at the top ends of the two lifting frames, and bending rollers are rotationally connected to the periphery of the bottom of the lifting frame; according to the cabinet plate bending device, cabinet plates can be positioned, it is guaranteed that the positions of the plates are accurate in the bending process, the bending precision is guaranteed, accurate bending can be achieved according to the thickness of the cabinet plates, the accuracy of the bending angle and the bending size is guaranteed, bending operation on the peripheries of the cabinet plates is achieved at the same time, the operation process is rapid, and the bending efficiency is high.
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Description

Technical Field

[0001] This utility model relates to the field of control cabinet manufacturing technology, specifically a control cabinet bending device. Background Technology

[0002] A control cabinet is a device that assembles switching equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or panel according to electrical wiring requirements. It is commonly used in power generation, distribution and substations. Its cabinet body is usually formed by bending metal plates.

[0003] A search revealed a device for bending and flanging the body panels of a power distribution cabinet, authorized by publication number CN219274161U. This device relates to the field of bending devices, including a bending device with a bending mechanism and a bending table. A base plate is mounted on one side of the bending device, a limiting rod is slidably mounted within a bracket, a gear is mounted on a rotating shaft, a toothed plate meshes with the gear, a limiting plate is mounted on the toothed plate, a sliding rod is mounted on the toothed plate, and a second support plate is mounted on the bending table. The sliding rod is slidably mounted within the second support plate. In this invention, the design of the toothed disc, the toothed gear, the threaded rod, and the push plate allows the threaded sleeve to move forward, driving the push plate forward. The forward movement of the push plate propels the cabinet body panel between the bending table and the limiting plate. Furthermore, when the teeth on the toothed disc are not in contact with the toothed gear, the cabinet body panel can be bent again by the bending table, thus completing continuous bending of the cabinet body panel, saving time and effort.

[0004] Based on the aforementioned patents, the existing technology has the following unresolved problems: When bending the control cabinet body, the existing technology requires bending the four sides of the cabinet body step by step, and it is not possible to bend the four sides of the cabinet body material at the same time. This results in a lot of repetitive operations, low bending efficiency, and an inability to meet the needs of rapid production. Therefore, it is urgent to design a control cabinet body bending device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a control cabinet bending device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A control cabinet bending device includes a chassis. A workbench is fixedly installed on the top of the chassis, and a cabinet panel is placed on the top surface of the workbench. A positioning component for positioning the cabinet panel is provided on the workbench. Mounting grooves are opened at both ends of the bottom of the workbench, and hydraulic cylinders are installed on the inner walls of the mounting grooves. Lifting frames extending out of the chassis are installed on the piston ends of the hydraulic cylinders. The top ends of the two lifting frames are equipped with the same lifting frame, and bending rollers are rotatably connected to the bottom four sides of the lifting frame. An ejection component is provided at the bottom end of each lifting frame.

[0008] Furthermore, the lateral spacing between the four bending rollers and the perimeter of the worktable is the same as the thickness of the cabinet material.

[0009] Furthermore, both ends of the chassis are provided with guide grooves for the lifting frame to pass through, and the inner walls of the guide grooves are fixed with guide posts, and the lifting frame is provided with guide holes for the guide posts to pass through.

[0010] Furthermore, the ejection assembly includes two ejection ports opened on the worktable, and ejection rods inserted into the ejection ports are installed at the bottom ends of the two lifting frames.

[0011] Furthermore, the positioning component includes a cavity formed within the worktable, and the inner wall of the cavity has mounting holes located at two far apart corners. The inner walls of the mounting holes are rotatably connected to mounting shafts. The bottom of the two mounting shafts is provided with a drive mechanism. The outer walls of the two mounting shafts are fitted with gears located within the cavity, and the top and bottom of one side of each gear are meshed with rack rods extending out of the cavity. One end of each of the four rack rods is fixed with a column, and the top of each column is fixed with a clamping seat. The four clamping seats are located at the four corners of the worktable.

[0012] Furthermore, the drive mechanism includes transmission gears mounted on the bottom of the two mounting shafts, and a transmission belt meshes between the two transmission gears. A forward and reverse drive for driving the mounting shafts and the transmission belt to rotate is mounted on one side of the bottom of the worktable.

[0013] Furthermore, the inner walls at both ends of the cavity are provided with inlets and outlets for the rack rod to move, and the inlets and outlets are designed to be inclined.

[0014] Furthermore, the clamping seat has multiple rows of equally spaced rolling balls rolled on both outer walls of the sides near the cabinet plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the forward and reverse drive drives the transmission belt and mounting shaft to rotate, which in turn drives the rack rod to move. This allows the clamping seats at the four corners to position the cabinet panels, ensuring accurate positioning of the panels during bending and guaranteeing bending precision. Furthermore, the clamping seats are equipped with ball bearings on both outer walls near the cabinet panels, which facilitates the placement and adjustment of the panels and reduces scratches on the panel surface.

[0017] In this invention, since the lateral distance between the four bending rollers and the worktable is the same as the thickness of the cabinet material, when the height of the lifting frame, lifting frame and bending rollers is adjusted by the hydraulic cylinder, the bending can be precise according to the thickness of the material, ensuring the accuracy of the bending angle and size, improving the processing quality of the control cabinet, and realizing the bending operation of the cabinet material around the same side at the same time, making the operation quick and the bending efficiency high.

[0018] In this invention, the ejector assembly allows the lifting rod to rise synchronously with the lifting frame driven by the hydraulic cylinder after bending, facilitating the ejection of the cabinet panel from the workbench for easy material removal and subsequent processing. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a control cabinet bending device.

[0020] Figure 2 This is a three-dimensional sectional view of a control cabinet bending device.

[0021] Figure 3 This is a schematic diagram of the hydraulic cylinder and guide hole structure of a control cabinet bending device.

[0022] Figure 4 This is a bottom view of the workbench of a control cabinet bending device.

[0023] Figure 5 This is a sectional view of the workbench of a control cabinet bending device.

[0024] Figure 6 This is a schematic diagram of the inlet and outlet structure of a control cabinet bending device.

[0025] In the diagram: 1. Chassis; 2. Workbench; 3. Positioning assembly; 301. Forward / reverse drive; 302. Transmission belt; 303. Mounting shaft; 304. Rack; 305. Column; 306. Clamping seat; 307. Cavity; 308. Gear; 309. Ball bearing; 310. Inlet / outlet; 4. Cabinet panel; 5. Lifting frame; 6. Bending roller; 7. Lifting frame; 8. Guide groove; 9. Guide column; 10. Hydraulic cylinder; 11. Top material rod; 12. Top material opening; 13. Guide hole; 14. Mounting groove. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-6 In this embodiment of the utility model, a control cabinet bending device includes a chassis 1. A workbench 2 is fixedly installed on the top of the chassis 1, and a cabinet plate 4 is placed on the top surface of the workbench 2. A positioning component 3 for positioning the cabinet plate 4 is provided on the workbench 2. Mounting grooves 14 are opened at both ends of the bottom of the workbench 2, and hydraulic cylinders 10 are installed on the inner walls of the mounting grooves 14. Lifting frames 7 extending out of the chassis 1 are installed on the piston ends of the hydraulic cylinders 10. The same lifting frame 5 is installed at the top of the two lifting frames 7, and bending rollers 6 are rotatably connected to the bottom four sides of the lifting frame 5. The lateral distance between the four bending rollers 6 and the four sides of the workbench 2 is the same as the thickness of the cabinet plate 4. An ejection component is provided at the bottom end of the lifting frame 7. When the height of the lifting frame 7, the lifting frame 5 and the bending rollers 6 are adjusted by the hydraulic cylinder 10, the bending can be precise according to the thickness of the plate, ensuring the accuracy of the bending angle and size, and realizing the bending operation of the four sides of the cabinet plate 4 at the same time, making the operation process fast and the bending efficiency high.

[0028] Specifically, both ends of the housing 1 are provided with guide grooves 8 for the lifting frame 7 to pass through, and guide posts 9 are fixed on the inner walls of the guide grooves 8. Guide holes 13 are provided on the lifting frame 7 for the guide posts 9 to pass through, which makes the lifting frame 7 more stable during the lifting process, ensures the stability of the bending roller 6 during the lifting process, and helps to improve the bending quality.

[0029] Specifically, the ejection assembly includes two ejection ports 12 on the workbench 2, and the bottom ends of the two lifting frames 7 are each equipped with ejection rods 11 inserted into the ejection ports 12. After bending is completed, the lifting frames 7 are reset by the hydraulic cylinder 10, which in turn causes the ejection rods 11 to rise in the ejection ports 12, and the cabinet plate 4 is ejected from the workbench 2 to a certain height, making it convenient for operators to pick up the material.

[0030] Specifically, the positioning component 3 includes a cavity 307 formed within the worktable 2, and the inner wall of the cavity 307 has mounting holes located at two far apart corners. Mounting shafts 303 are rotatably connected to the inner walls of each mounting hole. A drive mechanism is provided at the bottom of the two mounting shafts 303, including transmission gears mounted at the bottom of the two mounting shafts 303, and a transmission belt 302 meshes between the two transmission gears. A forward / reverse drive 301 for rotating the mounting shafts 303 and the transmission belt 302 is mounted on one side of the bottom of the worktable 2. A mounting plate located in the cavity 307 is mounted on the outer wall of the two mounting shafts 303. The gears 308 inside the positioning assembly 3 are meshed with rack rods 304 extending out of the cavity 307 on the top and bottom of one side of each of the two gears 308. One end of each rack rod 304 is fixed with a column 305, and the top of each column 305 is fixed with a clamping seat 306. The four clamping seats 306 are located at the four corners of the workbench 2. The inner walls at both ends of the cavity 307 are provided with inlets and outlets 310 for the rack rods 304 to move. The inlets and outlets 310 are designed to be inclined. The positioning assembly 3 moves from the four corners of the workbench 2 to the cabinet plate 4 through the four clamping seats 306 inside the positioning assembly 3, thereby achieving the positioning and clamping of the cabinet plate 4.

[0031] Specifically, multiple rows of equally spaced rolling balls 309 are rolled on both outer walls of the clamping seat 306 near the cabinet plate 4. The rolling balls 309 can reduce the friction between the clamping seat 306 and the cabinet plate 4, making it easier to adjust the position of the plate, while also preventing scratches on the surface of the plate.

[0032] The working principle of this utility model is as follows: First, the height of the lifting frame 7, the lifting frame 5 and the top material rod 11 are initially adjusted by the hydraulic cylinder 10 so that the top of the top material rod 11 enters the top material opening 12.

[0033] Next, the cabinet panel 4 is placed flat on the workbench 2, and the forward and reverse drive 301 is started. The forward and reverse drive 301 drives the mounting shaft 303 to rotate. The transmission gear at the bottom of the mounting shaft 303 drives another transmission gear to rotate through the transmission belt 302, so that the two mounting shafts 303 rotate synchronously. The gear 308 on the mounting shaft 303 rotates accordingly. The rack 304 meshing with the gear 308 moves linearly along the inlet and outlet 310 of the inner wall of the cavity 307 under the drive of the gear 308. The column 305 at one end of the rack 304 moves with the rack 304, which in turn drives the clamping seat 306 at the top of the column 305 to move. The four clamping seats 306 move from the four corners of the workbench 2 toward the cabinet panel 4 to achieve positioning and clamping of the cabinet panel 4.

[0034] During bending, the lifting frame 7 continues to descend via the hydraulic cylinder 10. When the bending roller 6 descends to contact the cabinet panel 4 and reaches a certain pressure, the bending roller 6 applies pressure to the cabinet panel 4, causing it to bend and deform at the edge of the workbench 2, thus achieving the bending of the cabinet panel 4.

[0035] Finally, after bending is completed, the lifting frame 7 is reset by the hydraulic cylinder 10, which drives the top material rod 11 to rise in the top material opening 12. The top material rod 11 will push the cabinet plate 4 out of the workbench 2 to a certain height, so that the operator can take away the bent cabinet plate 4 for the next processing operation.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A control cabinet bending device, comprising a chassis (1), characterized in that: A workbench (2) is fixedly installed on the top of the chassis (1), and a cabinet plate (4) is placed on the top surface of the workbench (2). A positioning component (3) for positioning the cabinet plate (4) is provided on the workbench (2). An installation groove (14) is opened at both ends of the bottom of the workbench (2), and a hydraulic cylinder (10) is installed on the inner wall of the installation groove (14). A lifting frame (7) extending out of the chassis (1) is installed on the piston end of the hydraulic cylinder (10). The same lifting frame (5) is installed at the top of the two lifting frames (7), and bending rollers (6) are rotatably connected around the bottom of the lifting frame (5). An ejection component is provided at the bottom end of the lifting frame (7).

2. The control cabinet bending device according to claim 1, characterized in that: The lateral spacing between the four bending rollers (6) and the worktable (2) is the same as the thickness of the cabinet plate (4).

3. A control cabinet bending device according to claim 2, characterized in that: Both ends of the chassis (1) are provided with guide grooves (8) for the lifting frame (7) to pass through, and the inner wall of the guide grooves (8) is fixed with guide posts (9). The lifting frame (7) is provided with guide holes (13) for the guide posts (9) to pass through.

4. A control cabinet bending device according to claim 3, characterized in that: The ejection assembly includes two ejection ports (12) opened on the workbench (2), and the bottom ends of the two lifting frames (7) are each equipped with ejection rods (11) inserted into the ejection ports (12).

5. A control cabinet bending device according to claim 1, characterized in that: The positioning component (3) includes a cavity (307) opened in the workbench (2), and the inner wall of the cavity (307) is provided with two mounting holes located at two far corners. The inner wall of each mounting hole is rotatably connected to a mounting shaft (303). The bottom of the two mounting shafts (303) is provided with a driving mechanism. The outer wall of the two mounting shafts (303) is equipped with a gear (308) located in the cavity (307). The top and bottom of one side of each of the two gears (308) are meshed with rack rods (304) extending out of the cavity (307). One end of each of the four rack rods (304) is fixed with a column (305). The top of each column (305) is fixed with a clamping seat (306). The four clamping seats (306) are located at the four corners of the workbench (2).

6. A control cabinet bending device according to claim 5, characterized in that: The drive mechanism includes transmission gears mounted on the bottom of the two mounting shafts (303), and a transmission belt (302) meshes between the two transmission gears. A forward and reverse drive (301) for driving the mounting shafts (303) and the transmission belt (302) to rotate is mounted on one side of the bottom of the worktable (2).

7. A control cabinet bending device according to claim 6, characterized in that: Both ends of the cavity (307) have inlets and outlets (310) for the rack rod (304) to move, and the inlets and outlets (310) are designed to be inclined.

8. A control cabinet bending device according to claim 5, characterized in that: The clamping seat (306) has multiple rows of equally spaced rolling balls (309) on both outer walls near the cabinet plate (4).