A metal shell plastic edge bending device for the processing of distribution boxes

Abstract

The present invention discloses a metal shell shaping edge bending device for distribution box processing, which relates to the technical field of metal plate bending equipment. The present invention provides a metal shell shaping edge bending device for distribution box processing, which includes a mounting plate frame, etc. The mounting plate frame is rotatably connected to a grip rod, the mounting plate frame is fixedly connected to a support block, the support block is fixedly connected to a pair of first elastic components, and a top frame is fixedly connected between the telescopic ends of the pair of first elastic components. The present invention uses components such as the grip rod and the top frame to continuously knock the edge of the metal sheet before the bending process to achieve pre-forming, thereby pre-releasing part of the stress of the sheet and slightly changing the microstructure of the metal, making the metal sheet softer and more ductile to a certain extent, which not only reduces the torque required for subsequent bending processing, making the metal sheet easier to shape during bending, but also avoids cracks or even breakage of the metal sheet due to stress concentration.

Description

Technical Field

[0001] The present invention relates to the technical field of metal plate bending equipment, and in particular to a metal shell molding edge bending device for processing a distribution box. Background Art

[0002] Distribution boxes are a crucial piece of equipment in power systems, primarily used to distribute and control electrical energy. They are widely used in industrial, commercial, and residential buildings, ensuring the safe and reliable delivery of electricity to various devices and areas. A typical distribution box typically includes key components such as a metal housing, busbars, circuit breakers, contactors, relays, and instruments. The production process for the metal housing includes raw material preparation, pretreatment, forming, welding assembly, surface treatment, and quality inspection. During the forming process, a bending machine is often used to bend the edges of the metal sheets to a predetermined angle to improve the safety of the box.

[0003] Existing metal shell shaping edge bending devices are usually installed in workshops. They are large in size and suitable for large-scale production in factories. However, they are inconvenient to use when on-site operations and small-batch processing are required. Although handheld edge bending devices are highly portable and flexible, they have relatively small power, making it more difficult to bend the edges of thicker metal sheets. In addition, handheld devices mainly rely on manual control during operation, and the bending process is easily unstable due to operator hand shaking or other factors, which may cause uneven bending force and even deformation of the metal sheet.

[0004] Based on the above situation, the present invention proposes a metal shell shaping edge bending device for distribution box processing that is easy to use and highly stable. Summary of the Invention

[0005] In order to overcome the shortcomings of existing handheld edge bending devices, which are highly portable and flexible but have relatively small strength and are more difficult to bend the edges of thicker metal plates, and the handheld devices mainly rely on manual control during operation, which can easily lead to unstable bending process due to operator's hand shaking or other factors, thereby causing uneven bending force and even deformation of the metal plate, the present invention provides a metal shell shaping edge bending device for distribution box processing that is easy to use and has high stability.

[0006] A metal shell molding edge bending device for distribution box processing includes a mounting plate frame, a protective shell, an adjustment component, a bevel pressure wheel, a roller, a transmission component, a one-way sprocket, a grip rod, a top frame, a rotating rod, a connecting rod, a rotating block, a support block, a limit block and a first elastic component. The mounting plate frame is fixed with the protective shell, the mounting plate frame is provided with an adjustment component, the mounting plate frame is rotatably connected to the bevel pressure wheel, the adjustment component is also rotatably connected to the bevel pressure wheel, the mounting plate frame is rotatably connected to a pair of rollers, the mounting plate frame is rotatably connected to the one-way chain The wheel, a transmission assembly is provided between the one-way sprocket and the pair of rollers, the mounting plate frame is rotatably connected to the grip rod, the grip rod is connected to the one-way sprocket, the mounting plate frame is fixed with a support block, the support block is fixed with a pair of first elastic components, a top frame is fixed between the telescopic ends of the pair of first elastic components, the mounting plate frame is fixed with a limit block, the top frame is slidably connected to the limit block, the mounting plate frame is rotatably connected to a rotating block, the rotating block is extruded and fitted with the top frame, the rotating block is fixed with a rotating rod, the rotating rod is rotatably connected to a connecting rod, and the connecting rod is rotatably connected to the grip rod.

[0007] It is further explained that the paired beveled pressure wheels are distributed symmetrically around the center.

[0008] Further description: a rubber sleeve with oblique stripes is fixed to the outside of the roller.

[0009] Further explanation, it also includes an extrusion mechanism, which is arranged on the mounting plate frame. The extrusion mechanism includes a moving block, an oblique block frame, a torsion bar, a top plate, a mounting frame, a spring and a support frame. The moving block is slidably connected to the mounting plate frame, the moving block is fixedly connected to the oblique block frame, the mounting plate frame is rotatably connected to the torsion bar, the torsion bar is threadedly connected to the moving block, the mounting plate frame is fixedly connected to the support frame, the support frame is slidably connected to the mounting frame, the oblique block frame is extruded and matched with the mounting frame, the mounting frame is fixedly connected to a pair of springs, and a top plate is fixed between the pairs of springs.

[0010] Further description, wherein the top plate is provided with an inclined surface.

[0011] Further explanation, it also includes a guide mechanism, which is arranged on the mounting plate frame. The guide mechanism includes a guide rotating plate, a guide block and a rocker arm. The paired guide rotating plates are rotatably connected to the mounting plate frame. The guide rotating plate is fixed with a guide block. The guide block is slidingly connected to the mounting plate frame. The guide block is rotatably connected to the rocker arm, and the rocker arm is rotatably connected to the moving block.

[0012] Further description, wherein the guide rotating plate is rotatably connected to a pair of small rotating wheels.

[0013] Further explanation: it also includes a marking mechanism, which is arranged on the mounting plate frame. The marking mechanism includes a fixed block, a second elastic component and a marking block. The pairs of fixed blocks are fixed to the mounting plate frame, the fixed block is fixed with the second elastic component, the telescopic end of the second elastic component is fixed with the marking block, and the marking block is slidably connected to the limit block.

[0014] Further explanation, it also includes a limiting mechanism, which is arranged on the mounting plate frame. The limiting mechanism includes a screw rod, a sliding rod, a movable frame, a first block and a second block. The screw rod is rotatably connected to the mounting plate frame, and the mounting plate frame is fixed with a pair of sliding rods. The movable frame is slidably connected between the pairs of sliding rods. The movable frame is threadedly connected to the screw rod, the movable frame is fixed with the first block, and the adjustment assembly is fixed with the second block.

[0015] The beneficial effects of the present invention are: 1. The present invention uses components such as a grip rod and a top frame to continuously knock the edge of the metal sheet to achieve pre-forming before the bending process, thereby releasing part of the stress of the sheet in advance and slightly changing the microstructure of the metal, making the metal sheet softer and more ductile to a certain extent. It not only reduces the torque required for subsequent bending processing, making the metal sheet easier to shape during bending, but also avoids cracks or even breakage of the metal sheet due to stress concentration, thereby improving the practicality of this metal shell shaping edge bending device.

[0016] 2. The present invention uses components such as the top plate and the spring sheet to apply corresponding pressure to the pre-formed part of the metal sheet according to the thickness of the sheet, thereby pre-shaping the metal sheet and avoiding its rebound. This not only improves the accuracy and consistency of subsequent bending processing, but also improves the stability of the subsequent processing process and the quality of the final product, thereby improving the processing quality of this metal shell shaping edge bending device.

[0017] 3. The present invention can limit and guide the metal sheet through components such as the guide turn plate and the guide block, thereby avoiding the front-to-back deviation of the processing part of the edge bending device caused by the worker's hand shaking and affecting the processing quality, thereby improving the stability of the metal shell molding edge bending device.

[0018] 4. The present invention uses the second elastic component and the scratching block and other components to make a straight scratch on the part of the metal plate to be bent, thereby slightly damaging the overall structure of the metal plate, so that the metal plate can be bent more accurately along this scratch when it is subsequently subjected to pressure and bent. At the same time, it can also reduce the elastic restoring force of the metal plate at the part to be bent to avoid rebound, thereby making the angle after bending more stable, thereby improving the processing quality of this metal shell shaping edge bending device.

[0019] 5. The present invention uses components such as a screw rod and a movable frame to adjust the distance between the first block and the second block according to the thickness of the metal plate, and uses the first block and the second block to limit the relative angle between the edge bending device and the metal plate, thereby avoiding deflection of the edge bending device due to hand shaking of the worker and affecting the product quality, thereby improving the stability of the metal shell molding edge bending device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the mounting plate frame, rollers, transmission components and other components of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the top frame, rotating rod, connecting rod and other components of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating rod, connecting rod and rotating block of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the moving block, the inclined block frame and the torsion bar and other components of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the top plate, mounting frame, spring pieces and other components of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the guide rotating plate, guide block, rocker arm and other components of the present invention.

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the mounting plate frame, guide block, rocker arm and other components of the present invention.

[0028] Figure 9 It is a schematic diagram of the three-dimensional structure of the fixing block, the second elastic component and the sliding block of the present invention.

[0029] Figure 10 It is a schematic diagram of the three-dimensional structure of the components such as the screw rod, the sliding rod and the movable frame of the present invention.

[0030] In the above drawings: 1: mounting plate frame, 101: protective shell, 11: adjustment component, 12: bevel pressure wheel, 1201: roller, 1202: transmission component, 1203: one-way sprocket, 13: grip rod, 14: top frame, 15: rotating rod, 1501: connecting rod, 16: rotating block, 17: support block, 18: limit block, 19: first elastic component, 2: moving block, 21: oblique block frame, 22: torsion bar, 23: top plate, 24: mounting frame, 25: spring piece, 26: support frame, 3: guide rotating plate, 31: guide block, 32: rocker arm, 4: fixed block, 41: second elastic component, 42: sliding block, 5: screw rod, 51: sliding rod, 52: moving frame, 53: first resist block, 54: second resist block. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0032] Example 1

[0033] A metal shell molding edge bending device for distribution box processing, such as Figure 1-Figure 4 As shown, it includes a mounting plate frame 1, a protective shell 101, an adjusting component 11, a beveled pressure wheel 12, a roller 1201, a transmission component 1202, a one-way sprocket 1203, a grip rod 13, a top frame 14, a rotating rod 15, a connecting rod 1501, a rotating block 16, a support block 17, a limit block 18 and a first elastic component 19. The rear side of the mounting plate frame 1 is fixedly connected to the protective shell 101, the right part of the mounting plate frame 1 is provided with an adjusting component 11, the left part of the mounting plate frame 1 is rotatably connected to the beveled pressure wheel 12, and the left part of the adjusting component 11 is also rotatably connected to the beveled pressure wheel 12, the left and right parts of the lower side of the mounting plate frame 1 are rotatably connected to the roller 1201, the right part of the rear side of the mounting plate frame 1 is rotatably connected to the one-way sprocket 1203, and the one-way sprocket 1203 is connected to the left and right parts. A transmission assembly 1202 is provided between the rollers 1201, and the lower right side of the mounting plate frame 1 is rotatably connected to the grip rod 13, and the grip rod 13 is connected to the one-way sprocket 1203. A support block 17 is fixed to the lower front side of the mounting plate frame 1, and the upper and lower parts of the left side of the support block 17 are fixed with the first elastic assembly 19, and a top frame 14 is fixed between the telescopic ends of the upper and lower first elastic assemblies 19. A limit block 18 is fixed to the lower front side of the mounting plate frame 1, and the top frame 14 is slidingly connected to the limit block 18. The lower front side of the mounting plate frame 1 is rotatably connected to a rotating block 16, which is squeezed into fit with the top frame 14. A rotating rod 15 is fixed to the rear side of the rotating block 16, and the right end of the rotating rod 15 is rotatably connected to a connecting rod 1501, which is rotatably connected to the grip rod 13.

[0034] like Figure 1 and Figure 3 As shown, the left and right beveled pressing wheels 12 are distributed symmetrically with respect to the center.

[0035] like Figure 1 and Figure 2 As shown, a rubber sleeve with oblique stripes is fixed to the outside of the roller 1201.

[0036] When workers need to bend the edge of a metal sheet during the forming process of a metal shell, they can first move the right bevel pressing wheel 12 to a suitable position according to the thickness of the metal sheet through the adjustment component 11, and then place the metal sheet vertically and insert the top of the rear end edge of the metal sheet between the left and right rollers 1201. Since a rubber sleeve with oblique stripes is fixed to the outside of the roller 1201, the roller 1201 can keep close contact with metal sheets of various thicknesses and ensure that there is a large friction between the roller 1201 and the metal sheet. Then the worker can The handle 13 is rotated up and down, and the upward rotation of the handle 13 drives the one-way sprocket 1203 to rotate counterclockwise, and the counterclockwise rotation of the one-way sprocket 1203 drives the two rollers 1201 to rotate through the transmission component 1202, and the rotation of the two rollers 1201 drives the mounting plate frame 1 and the bevel pressure wheel 12 and other components to move downward along the metal plate, while the downward rotation of the handle 13 to reset does not drive the one-way sprocket 1203 to rotate. Therefore, as the handle 13 rotates up and down, the mounting plate frame 1 and the bevel pressure wheel 12 and other components will gradually move downward along the metal plate and pass through the two sides. The beveled pressure wheel 12 applies pressure to the edge of the metal sheet, thereby bending the edge of the metal sheet, and the up-and-down rotation of the handle 13 will also drive the rotating rod 15 to rotate up and down through the connecting rod 1501, and the up-and-down rotation of the rotating rod 15 will drive the rotating block 16 to rotate counterclockwise and clockwise. When the rotating block 16 rotates counterclockwise, the rotating block 16 will contact and squeeze the top frame 14, so that the top frame 14 moves to the left and knocks the edge of the metal sheet. The first elastic component 19 is then stretched, so that the edge of the metal sheet can be pre-bent with the help of the top frame 14 and the limit block 18. Bending and forming can release part of the stress of the sheet in advance and slightly change the microstructure of the metal, making the metal sheet softer and more ductile to a certain extent. It can not only reduce the torque required for subsequent bending processing, making the metal sheet easier to shape during bending, but also avoid cracks or even breakage of the metal sheet due to stress concentration. When the rotating block 16 rotates clockwise to reset, the top frame 14 will also move to the right to reset under the action of the first elastic component 19, wherein the protective shell 101 can shield and protect components such as the one-way sprocket 1203 and the transmission component 1202.

[0037] Example 2

[0038] On the basis of Example 1, Figure 5 and Figure 6As shown, it also includes an extrusion mechanism, which is arranged on the mounting plate frame 1. The extrusion mechanism includes a moving block 2, an oblique block frame 21, a torsion bar 22, a top plate 23, a mounting frame 24, a spring piece 25 and a support frame 26. The moving block 2 is slidably connected to the upper rear part of the mounting plate frame 1, and the rear side of the moving block 2 is fixedly connected to the oblique block frame 21. The rear side of the mounting plate frame 1 is rotatably connected to the torsion bar 22, and the torsion bar 22 is threadedly connected to the moving block 2. The rear side of the mounting plate frame 1 is fixedly connected to the support frame 26, and the middle part of the support frame 26 is slidably connected to the mounting frame 24. The oblique block frame 21 is extruded and matched with the mounting frame 24. The left and right parts of the front side of the mounting frame 24 are fixedly connected with spring pieces 25, and the front sides of the left and right spring pieces 25 are fixedly connected with the top plate 23.

[0039] like Figure 6 As shown, the lower portion of the top plate 23 is provided with an inclined surface.

[0040] Before bending the edge of the metal sheet, the worker can also rotate the torsion bar 22 according to the thickness of the metal sheet, thereby driving the moving block 2 and the inclined block frame 21 to move upward or downward. Taking a thicker metal sheet as an example, the worker can rotate the torsion bar 22 forward to drive the moving block 2 and the inclined block frame 21 to move downward. The inclined block frame 21 moves downward to contact and squeeze the mounting frame 24, thereby moving the mounting frame 24, the spring piece 25 and the top plate 23 forward for a distance. When the top plate 23 moves downward with the mounting plate frame 1 and is in contact with the pre-bent When the metal sheets come into contact with each other, the metal sheets will squeeze the inclined surface on the lower side of the top plate 23, causing the top plate 23 to move backward, and the spring piece 25 will be compressed immediately. At this time, the spring piece 25 is compressed to a greater extent. Therefore, under the action of the spring piece 25, the top plate 23 exerts a greater pressure on the pre-bent part of the metal sheet, thereby pre-shaping the metal sheet and preventing its rebound, thereby improving the accuracy and consistency of subsequent bending processing, and improving the stability of the subsequent processing process and the quality of the final product. The same is true when the thickness of the metal sheet is thinner.

[0041] like Figure 7 and Figure 8 As shown, it also includes a guide mechanism, which is arranged on the mounting plate frame 1. The guide mechanism includes a guide rotating plate 3, a guide block 31 and a rocker rod 32. The two guide rotating plates 3 are respectively rotatably connected to the left and right sides of the upper part of the mounting plate frame 1. The guide block 31 is fixed to the rear side of the lower part of the guide rotating plate 3. The guide block 31 is slidably connected to the mounting plate frame 1. The rear end of the guide block 31 is rotatably connected to the rocker rod 32, and the rocker rod 32 is rotatably connected to the moving block 2.

[0042] like Figure 7 and Figure 8 As shown, the upper portion of the guide rotating plate 3 is rotatably connected to two small rotating wheels at the front and rear ends.

[0043] When the metal sheet is thicker and the worker drives the moving block 2 and the inclined block frame 21 downward through the torsion bar 22, the moving block 2 will drive the guide block 31 to slide downward along the slide groove on the mounting plate frame 1 through the rocker bar 32, and the guide blocks 31 on the left and right sides will slide downward, which will drive the lower halves of the two guide rotating plates 3 to rotate downward, and the upper halves of the two guide rotating plates 3 will rotate in the direction away from each other. At this time, the gap between the two guide rotating plates 3 will increase, thereby adapting to the thickness of the metal sheet and keeping close to the unbent part of the metal sheet. The bent part of the metal sheet will be located in the gap between the upper part of the guide rotating plate 3 and the mounting plate frame 1. When the metal sheet is thinner, the same is true. In this way, the two guide rotating plates 3 can be used to limit and guide the metal sheet, thereby avoiding the front and rear direction deviation of the processing part of the edge bending device due to the worker's hand shaking and affecting the processing quality.

[0044] like Figure 1 and Figure 9 As shown, it also includes a marking mechanism, which is arranged on the mounting plate frame 1. The marking mechanism includes a fixed block 4, a second elastic component 41 and a marking block 42. The two fixed blocks 4 are respectively fixed to the upper and lower parts of the left side of the mounting plate frame 1. The second elastic component 41 is fixed to the right side of the fixed block 4. The telescopic end of the second elastic component 41 is fixed to the marking block 42, and the marking block 42 is slidably connected to the limit block 18.

[0045] When the mounting plate frame 1 and the bevel pressure wheel 12 and other components gradually move downward and bend the metal sheet, the sliding block 42 will also move downward with the mounting plate frame 1. During this period, the sliding block 42 will remain in close contact with the metal sheets of different thicknesses under the action of the second elastic component 41, and as the sliding block 42 and the metal sheet slide relative to each other, the sliding block 42 will scratch a straight line on the part of the metal sheet to be bent, thereby slightly damaging the overall structure of the metal sheet, so that the metal sheet can be bent more accurately along this scratch when it is subsequently subjected to pressure and bent. At the same time, it can also reduce the elastic restoring force of the metal sheet at the part to be bent to avoid rebound, thereby making the angle after bending more stable.

[0046] like Figure 1 and Figure 10 As shown, it also includes a limiting mechanism, which is arranged on the mounting plate frame 1. The limiting mechanism includes a screw rod 5, a slide rod 51, a movable frame 52, a first stop block 53 and a second stop block 54. The screw rod 5 is rotatably connected to the left side of the mounting plate frame 1. The upper and lower parts of the left side of the mounting plate frame 1 are fixed with slide rods 51. The movable frame 52 is slidably connected between the upper and lower slide rods 51. The movable frame 52 is threadedly connected to the screw rod 5. The right end of the movable frame 52 is fixed with the first stop block 53, and the front side of the adjustment component 11 is fixed with the second stop block 54.

[0047] When the worker moves the right bevel pressing wheel 12 to the appropriate position according to the thickness of the metal sheet through the adjustment component 11, the second stop 54 will also move to the appropriate position under the action of the adjustment component 11. Then the worker can also rotate the screw rod 5 according to the thickness of the metal sheet, thereby driving the movable frame 52 and the first stop block 53 to move to the appropriate position. At this time, the first stop block 53 and the second stop block 54 will both fit with the metal sheet. In this way, the relative angles between the mounting plate frame 1 and other components and the metal sheet can be limited with the help of the first stop block 53 and the second stop block 54 to avoid deflection of the mounting plate frame 1 and other components due to hand shaking of the worker and affect the product quality. After the processing is completed, rotate the screw rod 5 in the opposite direction to move the movable frame 52 and the first stop block 53 to the left and separate from the metal sheet.

[0048] The technical principles of the embodiments of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the embodiments of the present invention and should not be construed in any way as limiting the scope of protection of the embodiments of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific implementations of the embodiments of the present invention without inventive effort, and such implementations will fall within the scope of protection of the embodiments of the present invention.

Claims

1. A metal shell molding edge bending device for processing a distribution box, comprising a mounting plate frame (1), a protective shell (101), an adjusting component (11), a beveled edge pressure wheel (12), a roller (1201), a transmission component (1202), a one-way sprocket (1203) and a gripping rod (13), wherein the mounting plate frame (1) is fixedly connected to the protective shell (101), the mounting plate frame (1) is provided with an adjusting component (11), and the mounting plate frame (1) is rotatably connected to the beveled edge pressure wheel (12 ), the adjustment component (11) is also rotatably connected to the bevel pressure wheel (12), the mounting plate frame (1) is rotatably connected to the pair of rollers (1201), the mounting plate frame (1) is rotatably connected to the one-way sprocket (1203), a transmission component (1202) is provided between the one-way sprocket (1203) and the pair of rollers (1201), the mounting plate frame (1) is rotatably connected to the gripping rod (13), the gripping rod (13) is connected to the one-way sprocket (1203), and the characteristic is that, The utility model also includes a top frame (14), a rotating rod (15), a connecting rod (1501), a rotating block (16), a supporting block (17), a limiting block (18) and a first elastic component (19), wherein the mounting plate frame (1) is fixedly connected to the supporting block (17), the supporting block (17) is fixedly connected to a pair of first elastic components (19), the telescopic ends of the pair of first elastic components (19) are fixedly connected to the top frame (14), the mounting plate frame (1) is fixedly connected to the limiting block (18), the top frame (14) and the limiting block (18) are slidably connected, the mounting plate frame (1) is rotatably connected to the rotating block (16), the rotating block (16) and the top frame (14) are extrusion-fitted, the rotating block (16) is fixedly connected to the rotating rod (15), the rotating rod (15) is rotatably connected to the connecting rod (1501), and the connecting rod (1501) is rotatably connected to the gripping rod (13); The paired beveled pressing wheels (12) are centrally symmetrically distributed; The roller (1201) is externally fixed with a rubber sleeve having oblique stripes; The invention also includes an extrusion mechanism, which is arranged on the mounting plate frame (1). The extrusion mechanism includes a moving block (2), an inclined block frame (21), a torsion bar (22), a top plate (23), a mounting frame (24), a spring piece (25) and a support frame (26). The moving block (2) is slidably connected to the mounting plate frame (1). The moving block (2) is fixedly connected to the inclined block frame (21). The mounting plate frame (1) is rotatably connected to the torsion bar (22). The torsion bar (22) is threadedly connected to the moving block (2). The mounting plate frame (1) is fixedly connected to the support frame (26). The support frame (26) is slidably connected to the mounting frame (24). The inclined block frame (21) and the mounting frame (24) are extruded and matched. The mounting frame (24) is fixedly connected to a pair of spring pieces (25). The top plate (23) is fixedly connected between the pair of spring pieces (25).

2. A metal shell molding edge bending device for distribution box processing according to claim 1, characterized in that: The top plate (23) is provided with an inclined surface.

3. The metal shell molding edge bending device for distribution box processing according to claim 2 is characterized in that: The invention also includes a guide mechanism, which is arranged on the mounting plate frame (1). The guide mechanism includes a guide rotating plate (3), a guide block (31) and a rocker (32). The paired guide rotating plates (3) are both rotatably connected to the mounting plate frame (1). The guide rotating plate (3) is fixedly connected to the guide block (31). The guide block (31) is slidably connected to the mounting plate frame (1). The guide block (31) is rotatably connected to the rocker (32). The rocker (32) is rotatably connected to the moving block (2).

4. The metal shell molding edge bending device for distribution box processing according to claim 3 is characterized in that: The guide rotating plate (3) is rotatably connected to a pair of small rotating wheels.

5. The metal shell molding edge bending device for distribution box processing according to claim 4 is characterized in that: The invention also includes a marking mechanism, which is arranged on the mounting plate frame (1). The marking mechanism includes a fixed block (4), a second elastic component (41) and a marking block (42). The paired fixed blocks (4) are fixed to the mounting plate frame (1). The fixed block (4) is fixed to the second elastic component (41). The telescopic end of the second elastic component (41) is fixed to the marking block (42). The marking block (42) is slidably connected to the limit block (18).

6. The metal shell molding edge bending device for distribution box processing according to claim 5 is characterized in that: The invention also includes a limiting mechanism, which is arranged on the mounting plate frame (1). The limiting mechanism includes a screw rod (5), a slide rod (51), a movable frame (52), a first stop block (53) and a second stop block (54). The screw rod (5) is rotatably connected to the mounting plate frame (1). The mounting plate frame (1) is fixed with a pair of slide rods (51). The movable frame (52) is slidably connected between the pair of slide rods (51). The movable frame (52) is threadedly connected to the screw rod (5). The movable frame (52) is fixed with the first stop block (53). The adjustment component (11) is fixed with the second stop block (54).

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