Sheet metal distribution box processing plate bending machine

Abstract

The utility model discloses a sheet metal distribution box processing plate bending machine, including work table, the top of work table is fixedly connected with the lower bending mould main body through the support, the back of work table is fixedly connected with the support frame, the surface of support frame is fixedly connected with the support plate. The utility model discloses set up the structure such as the pass, the movable post, the disc, the compression spring, the hemispherical block, the sliding slot, the sliding block, the connecting frame and the electric jar, effectively solved the existing bending machine blanking difficult problem. When the plate bending is completed and needs to be blanked, the electric jar output end drives the sliding block to slide in the sliding slot left side through the connecting frame, because the sliding block cross section is triangular and is attached with the hemispherical block, when the sliding block removes, the inclined plane of sliding block will push the hemispherical block and move upward, and then drive the disc and movable post to slide upward, and the movable post extends from the pass and lifts up the plate material clamped in the lower bending mould main body, and the device has the advantages of facilitating blanking.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal bending technology, specifically to a sheet metal bending machine for processing sheet metal distribution boxes. Background Technology

[0002] Distribution cabinets (boxes) are divided into power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes), and are the final-level equipment in a power distribution system. Distribution cabinets are a general term for motor control centers. Distribution cabinets are used in situations where the load is relatively dispersed and there are fewer circuits; motor control centers are used in situations where the load is concentrated and there are more circuits. They distribute the electrical energy from a circuit of the upstream power distribution equipment to the nearest load. This level of equipment should provide protection, monitoring, and control for the load.

[0003] Utility model patent CN220805042U discloses a sheet metal distribution box processing sheet metal bending machine. It solves the problem of existing bending machines where bent sheet metal easily gets stuck in the lower die, making it difficult to remove and increasing the difficulty of material removal. The new machine uses a motor and threaded transmission structure to move the ejector cylinder upwards after bending. In actual use, the upward-moving ejector cylinder can be used as a demolding ejector pin structure, allowing the sheet metal to be lifted and separated from the lower bending die. Although this method is simple in structure, the ejector cylinders are distributed on both sides of the top back of the lower bending die. In actual use, when the sheet metal is stuck in the lower die, the ejector cylinders can only lift the bottom back sides of the sheet metal, making it impossible for the ejector cylinders to apply a uniform upward force to the sheet metal. This easily leads to sheet metal deformation, affecting processing quality and resulting in poor material removal. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a sheet metal distribution box processing plate bending machine, which has the advantage of facilitating material cutting.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sheet metal distribution box processing plate bending machine, comprising a worktable, a lower bending die body fixedly connected to the top of the worktable via a bracket, a support frame fixedly connected to the back of the worktable, a support plate fixedly connected to the surface of the support frame, a stamping cylinder fixedly connected to the bottom of the support plate, an upper bending die body fixedly connected to the bottom of the stamping cylinder, the upper bending die body being located directly above the lower bending die body, a number of openings evenly distributed on the top of the lower bending die body, and a movable column slidably connected inside each opening. The bottom of the movable column extends to the lower part of the bending die body and is fixedly connected to a disc. A compression spring is fixedly connected to the top of the disc, and the other end of the compression spring is fixedly connected to the bottom of the bending die body. A hemispherical block is fixedly connected to the bottom of the disc. The top of the worktable is provided with several sliding grooves, which are evenly distributed on the top of the worktable. The number of sliding grooves is the same as the number of openings. A sliding block is slidably connected inside the sliding groove. The sliding block has a triangular cross-section and fits against the hemispherical block. A connecting frame is fixedly connected to the surface of the sliding block. An electric cylinder is fixedly connected to the top of the worktable, and the output end of the electric cylinder is fixedly connected to the connecting frame.

[0006] As a preferred embodiment of this utility model, sleeves are fixedly connected to all four sides of the bottom of the support plate, and a limit rod is slidably connected inside the sleeve. The bottom of the limit rod is fixedly connected to the top of the upper bending mold body.

[0007] As a preferred embodiment of this utility model, a protective cover is fixedly connected to the bottom of the support plate, a protective cover is fixedly connected to the top of the workbench, and the top of the protective cover is fixedly connected to the bottom of the lower bending mold body.

[0008] As a preferred embodiment of this invention, the surface of the compression spring is coated with anti-rust paint.

[0009] As a preferred embodiment of this utility model, the top of the support plate is fixedly connected with several lifting rings, which are evenly distributed on the top of the support plate.

[0010] As a preferred embodiment of this utility model, the bottom of the workbench is fixedly connected to the four sides of the workbench, and the bottom of the workbench is fixedly connected to the base plate. The surface of the base plate is provided with mounting holes, and the number of mounting holes is several.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model adopts a structure including a through-hole, a movable column, a disc, a compression spring, a hemispherical block, a slide groove, a sliding block, a connecting frame, and an electric cylinder, effectively solving the problem of difficult material unloading in existing bending machines. When the sheet metal is bent and needs to be unloaded, the electric cylinder is activated. The output end of the electric cylinder drives the sliding block to slide to the left in the slide groove through the connecting frame. Since the cross-section of the sliding block is triangular and fits against the hemispherical block, when the sliding block moves, the inclined surface of the sliding block will push the hemispherical block to move upward, thereby driving the disc and the movable column to slide upward. The movable column extends out from the through-hole and lifts the sheet metal stuck in the lower bending die body. Because the through-holes are evenly distributed in a rectangular array and the number of movable columns is large and evenly distributed, a uniform upward pushing force can be applied to the bottom of the sheet material, avoiding the deformation of the sheet material caused by the concentration of pushing points in the prior art. This allows the sheet material to be smoothly removed from the lower bending die body, significantly reducing the difficulty of material removal, improving material unloading efficiency and processing quality. At the same time, the setting of the compression spring can drive the movable columns to automatically reset when the sliding block returns to its original position, ensuring the continuous and stable operation of the device. This device has the advantage of facilitating material unloading.

[0013] 2. This utility model is significant because it incorporates sleeves and limiting rods around the bottom of the support plate. The limiting rods are slidably connected inside the sleeves, and their bottoms are fixedly connected to the top of the upper bending die body. When the stamping cylinder drives the upper bending die body to move up and down, the limiting rods slide synchronously within the sleeves. This structure provides excellent guidance and limiting for the movement of the upper bending die body, effectively preventing horizontal deviation or tilting during movement and ensuring that the upper bending die body remains vertically aligned with the lower bending die body. This not only improves the accuracy of the bending process, making the bending angle and dimensions of the sheet metal more compliant, but also reduces friction and collision between the upper and lower bending die bodies, extending the die's service life and ensuring the stability and safety of the equipment operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the protective cover and shield structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the movable column, disc, and hemispherical block structure of this utility model;

[0017] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Workbench; 2. Lower bending die body; 3. Support frame; 4. Support plate; 5. Stamping cylinder; 6. Upper bending die body; 7. Through port; 8. Movable column; 9. Disc; 10. Compression spring; 11. Hemispherical block; 12. Sliding block; 13. Connecting frame; 14. Electric cylinder; 15. Sleeve; 16. Limiting rod; 17. Protective cover; 18. Protective cover; 19. Lifting ring; 20. Support leg; 21. Base plate. Detailed Implementation

[0019] 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.

[0020] like Figures 1 to 4 As shown, a sheet metal distribution box processing sheet metal bending machine includes a workbench 1. A lower bending die body 2 is fixedly connected to the top of the workbench 1 via a bracket. A support frame 3 is fixedly connected to the back of the workbench 1. A support plate 4 is fixedly connected to the surface of the support frame 3. A stamping cylinder 5 is fixedly connected to the bottom of the support plate 4. An upper bending die body 6 is fixedly connected to the bottom of the stamping cylinder 5. The upper bending die body 6 is located directly above the lower bending die body 2. The top of the lower bending die body 2 has several openings 7, which are evenly distributed on the top of the lower bending die body 2. A movable column 8 is slidably connected inside the opening 7, and the bottom of the movable column 8 extends to the lower bending die body. A disc 9 is fixedly connected to the bottom of the lower bending die body 2. A compression spring 10 is fixedly connected to the top of the disc 9. The other end of the compression spring 10 is fixedly connected to the bottom of the lower bending die body 2. A hemispherical block 11 is fixedly connected to the bottom of the disc 9. A slide groove is provided on the top of the worktable 1. The number of slide grooves is several and they are evenly distributed on the top of the worktable 1. The number of slide grooves is the same as the number of through-holes 7. A sliding block 12 is slidably connected inside the slide groove. The cross-section of the sliding block 12 is triangular. The sliding block 12 fits against the hemispherical block 11. A connecting frame 13 is fixedly connected to the surface of the sliding block 12. An electric cylinder 14 is fixedly connected to the top of the worktable 1. The output end of the electric cylinder 14 is fixedly connected to the connecting frame 13.

[0021] refer to Figure 2 Sleeves 15 are fixedly connected to the bottom of the support plate 4 around its perimeter. A limit rod 16 is slidably connected inside the sleeve 15. The bottom of the limit rod 16 is fixedly connected to the top of the upper bending die body 6.

[0022] As a technical optimization of this utility model, the installation of sleeves 15 and limiting rods 16 around the bottom of the support plate 4 is of great significance. The limiting rods 16 are slidably connected inside the sleeves 15, and the bottom of the limiting rods 16 is fixedly connected to the top of the upper bending die body 6. When the stamping cylinder 5 drives the upper bending die body 6 to move up and down, the limiting rods 16 will slide synchronously within the sleeves 15. This structure provides good guidance and limiting for the movement of the upper bending die body 6, effectively preventing horizontal deviation or tilting during movement and ensuring that the upper bending die body 6 always maintains a vertical alignment with the lower bending die body 2. This not only improves the accuracy of the bending process, making the bending angle and dimensions of the sheet metal more compliant with requirements, but also reduces friction and collision between the upper bending die body 6 and the lower bending die body 2, extending the service life of the die, and ensuring the stability and safety of the equipment operation.

[0023] refer to Figure 1 A protective cover 17 is fixedly connected to the bottom of the support plate 4, and a protective cover 18 is fixedly connected to the top of the workbench 1. The top of the protective cover 18 is fixedly connected to the bottom of the lower bending mold body 2.

[0024] As a technical optimization of this utility model, the protective cover 17 at the bottom of the support plate 4 and the protective cover 18 at the top of the workbench 1 provide excellent protection. The protective cover 17 covers the outside of components such as the stamping cylinder 5 and the sleeve 15, effectively preventing large debris from entering the moving parts of the stamping cylinder 5 and avoiding interference with the normal extension and retraction of the stamping cylinder 5. The protective cover 18 is located outside components such as the compression spring 10 and the movable column 8, preventing the operator from accidentally touching the compression spring 10 or the movable column 8 and getting injured. At the same time, it prevents large objects from entering the lower bending die body 2 and affecting the normal operation of the compression spring 10, the movable column 8, and the sliding block 12. This effectively protects the cleanliness and normal operation of key internal components of the equipment, reduces the probability of equipment failure, and extends the maintenance cycle and overall service life of the equipment.

[0025] refer to Figure 2 The surface of the compression spring 10 is coated with anti-rust paint.

[0026] As a technical optimization of this utility model, spraying anti-rust paint on the surface of the compression spring 10 has significant practical value. The compression spring 10 frequently extends and retracts during equipment operation, and the environment may contain corrosive substances such as moisture and oil, making it prone to corrosion. The protective layer formed by the anti-rust paint effectively isolates the compression spring 10 from contact with external corrosive media, slowing down the oxidation and corrosion rate of the compression spring 10. This ensures that the compression spring 10 maintains good elasticity during long-term use, preventing a decrease in elasticity or breakage due to corrosion. This ensures that the compression spring 10 can continuously provide stable downward pressure to the disc 9, allowing the movable column 8 to return to its original position promptly without external force, maintaining the normal working state of the feeding mechanism, and avoiding the problem of the movable column 8 failing to return to its original position due to the corrosion of the compression spring 10, thus affecting subsequent bending and feeding operations.

[0027] refer to Figure 1 A number of lifting rings 19 are fixedly connected to the top of the support plate 4, and the lifting rings 19 are evenly distributed on the top of the support plate 4.

[0028] As a technical optimization of this utility model, the evenly distributed lifting rings 19 on the top of the support plate 4 facilitate the installation and handling of the equipment. During equipment installation or position adjustment, the lifting hooks of the hoisting equipment can be connected to the lifting rings 19. Because the lifting rings 19 are numerous and evenly distributed, they ensure that the support plate 4 is subjected to uniform force during lifting, avoiding tilting of the support plate 4 due to uneven force during single-point lifting. This prevents components connected to the support plate 4, such as the stamping cylinder 5 and the upper bending die body 6, from shifting or colliding. This not only improves the efficiency and accuracy of equipment installation but also reduces the risk of damage due to tilting or collision during handling. Furthermore, it facilitates disassembly and hoisting for subsequent equipment maintenance and repair, enhancing the safety and convenience of equipment operation.

[0029] refer to Figure 1 The workbench 1 is fixedly connected to support legs 20 around its bottom. The bottom of the support legs 20 is fixedly connected to a base plate 21. The surface of the base plate 21 has several mounting openings.

[0030] As a technical optimization of this utility model, the stability and installation adaptability of the equipment are enhanced by the support legs 20 around the bottom of the workbench 1, the base plate 21, and the mounting holes on the base plate 21. The mounting holes allow the base plate 21 to be fixed to the ground or mounting foundation with bolts, further improving the equipment's stability and preventing displacement due to vibration during operation, thus ensuring the accuracy of bending processing. Furthermore, this structure facilitates flexible adjustment of the equipment's installation position according to the layout of the production workshop and actual needs, improving the equipment's adaptability. At the same time, the base plate 21 and support legs 20 also provide some moisture protection, reducing the possibility of rust caused by direct contact between the workbench 1 and the ground.

[0031] The working principle and usage process of this utility model are as follows: During use, the sheet metal distribution box to be bent is placed stably on top of the lower bending die body 2. The position of the sheet metal is adjusted so that the part to be bent is aligned directly below the upper bending die body 6, ensuring the sheet metal is flat and without skewing. Then, the stamping cylinder 5 is activated, and the output end of the stamping cylinder 5 pushes the upper bending die body 6 downwards. At this time, the limit rod 16 slides synchronously within the sleeve 15, guiding the upper bending die body 6 to maintain vertical downward movement until it cooperates with the lower bending die body 2 to complete the bending operation of the sheet metal.

[0032] After bending is completed, the control cylinder 5 retracts, driving the upper bending die body 6 to return to its original position, and the limit rod 16 moves upward to return to its initial position. Next, the unloading operation is performed: the electric cylinder 14 is started, and the output end of the electric cylinder 14 drives the sliding block 12 to slide to the left in the slide groove through the connecting frame 13. Since the sliding block 12 has a triangular cross section and fits with the hemispherical block 11, when the sliding block 12 moves, its inclined surface will push the hemispherical block 11 to move upward, thereby driving the disc 9 and the movable column 8 to slide upward. The movable column 8 extends out from the through 7 and pushes up the sheet material stuck in the lower bending die body 2. Because the through 7 is evenly distributed and the movable columns 8 are numerous and neatly arranged, they can apply a uniform upward pushing force to the bottom of the sheet material, so that the sheet material can be smoothly removed from the lower bending die body 2. At this time, the sheet material can be directly taken out.

[0033] After removing the sheet metal, control the electric cylinder 14 to move in the reverse direction. The sliding block 12 returns to its right position within the groove. The hemispherical block 11 loses the inclined support of the sliding block 12. Due to the elastic contraction of the compression spring 10, the disc 9 and the movable column 8 are driven to return to their original position downwards. The movable column 8 returns to the through-hole 7, restoring the initial state. Finally, perform final maintenance on the equipment: clean the metal shavings and debris on the worktable 1, check the fit clearance between the movable column 8 and the through-hole 7, the elasticity of the compression spring 10, and the wear of the sliding block 12 and the groove. If any abnormalities are found, adjust or replace them in time. Add an appropriate amount of lubricating oil to the sliding parts such as the groove and the limit rod 16 to ensure smooth operation in subsequent operations. Confirm that the protective cover 17 and the protective cover 18 are not loose or damaged. If damaged, replace them in time. Turn off the power to the equipment to complete this bending operation.

[0034] The aforementioned lower bending die body 2, upper bending die body 6, and stamping cylinder 5 are similar in principle to the lower bending die, upper bending die, and stamping cylinder 5 mentioned in the utility model patent disclosed in publication (announcement) number: CN220805042U, which describes a sheet metal distribution box processing plate bending machine, and achieve the same effect. This application will not elaborate further.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sheet metal distribution box processing plate bending machine, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to the lower bending die body (2) via a bracket. The back of the workbench (1) is fixedly connected to a support frame (3). The surface of the support frame (3) is fixedly connected to a support plate (4). The bottom of the support plate (4) is fixedly connected to a stamping cylinder (5). The bottom of the stamping cylinder (5) is fixedly connected to an upper bending die body (6). The upper bending die body (6) is located directly above the lower bending die body (2). The top of the lower bending die body (2) has an opening (7). There are several openings (7). The openings (7) are evenly distributed on the top of the lower bending die body (2). A movable column (8) is slidably connected inside the opening (7). The bottom of the movable column (8) extends to the bottom of the lower bending die body (2) and is fixedly connected. There is a disc (9), and a compression spring (10) is fixedly connected to the top of the disc (9). The other end of the compression spring (10) is fixedly connected to the bottom of the lower bending die body (2). A hemispherical block (11) is fixedly connected to the bottom of the disc (9). A sliding groove is provided on the top of the workbench (1), and the number of sliding grooves is several. The sliding grooves are evenly distributed on the top of the workbench (1). The number of sliding grooves is the same as the number of through holes (7). A sliding block (12) is slidably connected inside the sliding groove. The cross section of the sliding block (12) is triangular. The sliding block (12) fits against the hemispherical block (11). A connecting frame (13) is fixedly connected to the surface of the sliding block (12). An electric cylinder (14) is fixedly connected to the top of the workbench (1). The output end of the electric cylinder (14) is fixedly connected to the connecting frame (13).

2. The sheet metal bending machine for processing electrical distribution boxes according to claim 1, characterized in that: Sleeves (15) are fixedly connected to the bottom of the support plate (4) around its perimeter. A limit rod (16) is slidably connected inside the sleeve (15). The bottom of the limit rod (16) is fixedly connected to the top of the upper bending die body (6).

3. The sheet metal bending machine for processing electrical distribution boxes according to claim 1, characterized in that: The bottom of the support plate (4) is fixedly connected to a protective cover (17), and the top of the workbench (1) is fixedly connected to a protective cover (18). The top of the protective cover (18) is fixedly connected to the bottom of the lower bending mold body (2).

4. A sheet metal distribution box processing plate bending machine according to claim 1, characterized in that: The surface of the compression spring (10) is coated with anti-rust paint.

5. A sheet metal distribution box processing plate bending machine according to claim 1, characterized in that: The top of the support plate (4) is fixedly connected with a lifting ring (19), and there are several lifting rings (19) evenly distributed on the top of the support plate (4).

6. A sheet metal distribution box processing plate bending machine according to claim 1, characterized in that: The workbench (1) is fixedly connected to four sides of the bottom with support legs (20), and the bottom of the support legs (20) is fixedly connected to a base plate (21). The surface of the base plate (21) is provided with mounting holes, and the number of mounting holes is several.

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