A sheet metal bending equipment for processing distribution cabinet panels

Abstract

A sheet metal bending device for processing distribution cabinet panels, relates to the technical field of metal plate bending processing, comprises a mounting base, the mounting base is a horizontally arranged square table, a bending workbench is fixed on the mounting base, the bending workbench is a transversely extending square table, a conveying and feeding component and a primary bending component are respectively provided on the bending workbench, and a lifting and transferring component, a sliding mold clamping component and a secondary pressing and bending component are respectively provided on the mounting base. The present invention solves the problems that the bending machine in the traditional technology has a single bending function when used for the bending processing of distribution cabinet panels, is difficult to adapt to the bending processing of sheet metal structures with complex shapes, is inconvenient for multiple bending transfer feeding and clamping positioning, and is prone to deformation and rebound at the bending part, affecting the processing accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of metal plate bending processing, and in particular to a sheet metal bending device for processing a distribution cabinet box plate. Background Art

[0002] A power distribution cabinet is a device used to distribute power and control electrical equipment, and is a general term for motor control centers.

[0003] The distribution cabinet is the final equipment of the power distribution system. According to different functions, the distribution cabinet can be divided into power distribution cabinet, lighting distribution cabinet and metering cabinet. The distribution cabinet is widely used in industrial, commercial and residential buildings.

[0004] The production process of distribution cabinets is a complex process involving multiple steps and processes, including drawing design, material preparation, machining, parts assembly, insulation treatment, quality inspection and packaging. The production processes of distribution cabinets of different types and specifications are similar. The production of distribution cabinets requires strict management and quality control to ensure that the distribution cabinets produced are safe, reliable and have stable performance.

[0005] The mechanical processing of the distribution cabinet mainly involves the processing of the outer box plate and the inner partition plate of the distribution cabinet, which is the core link of the distribution cabinet production, and mainly includes cutting, bending, welding and surface treatment processes. Among them, the cutting process usually uses laser cutting or CNC cutting to ensure the cutting accuracy; the bending process is to form the basic structure of the cabinet; the welding process requires strict control of the welding quality to ensure the strength and stability of the cabinet; finally, the surface treatment process includes spraying or electroplating to improve the corrosion resistance and aesthetics of the cabinet.

[0006] The bending process of the distribution cabinet plate is essentially a sheet metal process. Sheet metal bending is usually performed on a bending machine. However, when the existing bending machines are used for the bending of distribution cabinet plates with complex shapes, small sizes and large batches, due to their own functional defects, a series of problems often occur during use, including:

[0007] 1. The bending function is single, and it is difficult to adapt to the bending processing of sheet metal structures with complex shapes. Specifically, the box plate of the distribution cabinet often needs to be bent multiple times during the sheet metal processing to be fully formed, and the existing bending machine can only bend once under the premise of one clamping, which makes it difficult to achieve the expected bending effect, and the bending machine is difficult to achieve the bending processing of the edge of the box plate with smaller size.

[0008] 2. During multiple bending processes, the box board transfer, loading and clamping positioning are inconvenient.

[0009] 3. The bending accuracy is low, the bending position is not completely defined, deformation and springback are prone to occur, affecting the processing quality of the distribution cabinet box plate.

[0010] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0011] In view of the defects in the prior art, the present invention provides a sheet metal bending equipment for processing distribution cabinet box plates, which is used to solve the problems that the bending machine in the traditional technology has a single bending function when used for bending processing of distribution cabinet box plates, is difficult to adapt to the bending processing of sheet metal structures with complex shapes, multiple bending transfers, loading and clamping positioning are inconvenient, and the bending parts are prone to deformation and rebound, affecting the processing accuracy.

[0012] To achieve the above object, the present invention provides the following technical solutions:

[0013] A sheet metal bending equipment for processing distribution cabinet box plates comprises a mounting base, wherein the mounting base is a horizontally arranged square table, a bending workbench is fixed on the mounting base, and the bending workbench is a transversely extending square table, a conveying and loading component and a primary bending component are respectively provided on the bending workbench, and a lifting and transferring component, a sliding mold clamping component and a secondary press bending component are respectively provided on the mounting base.

[0014] As an optimized solution, each transverse outer end face of the bending workbench is respectively provided with a concave swing mounting opening, and the primary bending assembly includes two symmetrically arranged swing bending plates, which are rotatably installed between the opposite longitudinal inner walls of the swing mounting opening and are arranged close to the transverse inner walls of the swing mounting opening, and a swing driving motor is respectively fixedly connected to each of the swing bending plates on the longitudinal outer end face of the bending workbench, and the end of the output shaft of the swing driving motor passes through the bending workbench and is fixedly connected to the side end face of the swing bending plate.

[0015] As an optimized solution, the sliding mold clamping assembly includes two symmetrically arranged sliding bases, and the upper surface of each sliding base is fixedly connected to two symmetrical electrically-controlled telescopic cylinders in the transverse direction. The sliding mold clamping assembly also includes two symmetrically arranged mold clamping right-angle plates, and the mold clamping right-angle plates are raised and lowered above the sliding bases, and the upper telescopic end of the electrically-controlled telescopic cylinder is fixedly connected to the lower end surface of the mold clamping right-angle plate.

[0016] As an optimized solution, a locking slot is provided on the longitudinal side wall of one of the mold clamping right-angle plates, and a plug-in fixing block matching the locking slot is fixedly connected to the longitudinal side wall of the other mold clamping right-angle plate.

[0017] As an optimized solution, two bending support molds are respectively fixedly connected to the two lateral side walls of each mold clamping right-angle plate, and the bending support molds are longitudinally extending semi-cylindrical molds.

[0018] As an optimized solution, the secondary press bending assembly includes two symmetrically arranged bridge-type support plates, which are laterally arranged on both sides of the two mold closing right-angle plates. The lower ends of each bridge-type support plate respectively cross the bending workbench and are fixedly connected to the upper surface of the mounting base.

[0019] As an optimized solution, two positioning telescopic cylinders are respectively fixed to the two longitudinal inner walls of each bridge-shaped support plate, and the telescopic end of each positioning telescopic cylinder is respectively fixed to a limiting push plate, and the lower surface of the limiting push plate is arranged close to the upper surface of the bending workbench.

[0020] As an optimized solution, the upper surface of each bridge-type support plate is fixedly connected with a longitudinally extending positioning side plate, and the lateral end surface of each positioning side plate is fixedly connected with two symmetrical horizontal telescopic cylinders, and the telescopic ends of the horizontal telescopic cylinders are fixedly connected with bending and pressing punches.

[0021] As an optimized solution, the upper surface of each of the mold right-angle plates is telescopically provided with two symmetrical bending and pressing dies, and two symmetrical bidirectional telescopic cylinders are provided between the two bending and pressing dies. The two telescopic ends of the bidirectional telescopic cylinders are respectively fixed to the back sides of the two bending and pressing dies, and the bidirectional telescopic cylinders are fixedly mounted on the upper surface of the mold right-angle plate.

[0022] As an optimized solution, four supporting vertical plates, which are symmetrical in pairs, are fixedly connected to the upper surface of the mounting base, and the upper ends of the supporting vertical plates are fixedly connected to the lower surface of the bending workbench.

[0023] As an optimized solution, a longitudinally extending conveying installation opening is opened in the middle of the upper surface of the bending workbench, and the conveying loading assembly includes a conveying middle roller and four conveying side rollers. The conveying middle roller is rotatably installed in the conveying installation opening, and the four conveying side rollers are rotatably installed in two swinging installation openings in groups of two, and two adjacent conveying side rollers are arranged on the outer side of the swinging bending plate.

[0024] As an optimized solution, two conveying drive motors are respectively fixed to the two longitudinal side end faces of the bending workbench, and the two conveying drive motors are arranged opposite to the two outermost conveying side rollers. The output shaft ends of the conveying drive motors pass through the bending workbench and are fixed to the corresponding side end faces of the conveying side rollers.

[0025] As an optimized solution, a horizontal transmission coupling is fixedly connected to the longitudinal side end face of the conveying intermediate roller, the end of the transmission coupling passes through the bending workbench and extends to the outside thereof, and the side end face of each conveying side roller is also fixedly connected to the transmission coupling.

[0026] As an optimized solution, a transmission wheel is fixedly connected to the end of each transmission shaft, and a transmission belt is sleeved between two adjacent transmission wheels.

[0027] As an optimized solution, the upper surface of the bending workbench is also provided with two symmetrical lifting and connecting ports, which are respectively arranged on both sides of the conveying and installing port, and the lifting and transferring assembly includes two lifting top support plates, which are respectively arranged in the two lifting and connecting ports.

[0028] As an optimized solution, two vertical lifting and telescopic cylinders are fixedly connected to the upper surface of the mounting base corresponding to each lifting and telescopic supporting plate, and the upper telescopic ends of the lifting and telescopic cylinders are fixedly connected to the lower surface of the lifting and telescopic supporting plate.

[0029] As an optimized solution, a longitudinally extending motor mounting opening is provided in the middle portion of the upper surface of the mounting base, and the motor mounting opening is arranged directly below the conveying mounting opening. A dual-shaft motor is fixedly installed in the motor mounting opening, and two longitudinally symmetrical sliding limit openings are provided on the mounting base, and the two sliding limit openings are arranged on both sides of the motor mounting opening. The ends of the two output shafts of the dual-shaft motor respectively extend into the sliding limit openings and are fixedly connected to driving wheels.

[0030] As an optimized solution, two parallel driving threaded rods are rotatably installed in each sliding limit opening, and the two ends of the driving threaded rods are rotatably supported on the longitudinal inner wall of the sliding limit opening. A driven wheel is fixedly connected to the outer peripheral wall near the end of each driving threaded rod, and the two driven wheels are respectively engaged with the driving wheel for transmission.

[0031] As an optimized solution, the two sliding bases are respectively slidably mounted in the two sliding limit openings, and the two parallel driving threaded rods respectively pass through and are threadedly connected to the sliding bases.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention generally adopts a forming method that combines primary bending and secondary pressing bending to adapt to the sheet metal bending processing of distribution cabinet panels with complex structures.

[0034] The conveying and loading assembly provided in the present invention can realize continuous loading and transfer of the crate plates. Specifically, the conveying and loading assembly includes four conveying side rollers and one conveying middle roller, and the conveying side rollers and the conveying middle roller can rotate synchronously under the control of the conveying drive motor, thereby realizing the lateral conveying of the crate plates.

[0035] The primary bending assembly provided in the present invention can bend the box plate into a U-shape. Specifically, the primary bending assembly includes two swing bending plates, which can swing around the axis under the control of the swing driving motor, so as to fold up the two sides of the box plate, and after folding, the swing bending plates can also limit and shape the box plate to prevent it from rebounding, so as to ensure the bending accuracy.

[0036] The sliding mold assembly provided in the present invention includes two mold clamping right-angle plates. The two mold clamping right-angle plates can be coupled to each other by sliding, and the middle section of the strip box plate can be pressed down and clamped during a bending process by driving the mold clamping right-angle plates to rise and fall, thereby preventing unnecessary deformation during the bending process; further, a semi-cylindrical bending support mold is fixedly connected to the lateral side end surface of the mold clamping right-angle plate, and the bending support mold can support and limit the bending part during the bending process of the strip box plate, thereby ensuring that the box plate is bent according to a specific trajectory.

[0037] The lifting and transfer assembly provided in the present invention can transfer the box plate as a whole to between the bending punch and the bending die by driving the lifting top support plate to perform secondary bending on the edge of the box plate after the box plate of the distribution cabinet is bent once.

[0038] The secondary bending assembly provided in the present invention can realize secondary bending of the edge of the box plate. Specifically, the secondary bending assembly includes two bridge-type support plates, each longitudinal inner wall of the bridge-type support plate is telescopically provided with a limit push plate, and the limit push plate can limit the position of the strip box plate during the conveying and feeding process, and the upper surface of each bridge-type support plate is telescopically provided with a bending punch, and the upper surface of each mold right-angle plate is telescopically provided with two symmetrical bending dies. During the secondary bending process, a specific shape can be pressed out at the side edge of the box plate by driving the bending punch and the bending die to telescopically cooperate. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0040] Figure 1 It is a schematic cross-sectional view of the internal structure of each component in the present invention in the main viewing direction;

[0041] Figure 2 It is a schematic cross-sectional view of the internal structure of each component in the present invention in a top view direction;

[0042] Figure 3 It is a schematic cross-sectional view of the internal structure of each component in the present invention in the side view direction;

[0043] Figure 4 It is a schematic diagram of the external overall structure of the present invention in the main viewing direction;

[0044] Figure 5 It is a schematic diagram of the external overall structure of the present invention in a top view;

[0045] Figure 6 It is a schematic diagram of the external overall structure of the present invention when viewed from the side.

[0046] In the figure: 1-mounting base, 2-bending workbench, 3-support vertical plate, 4-swing mounting port, 5-swing bending plate, 6-swing drive motor, 7-conveying mounting port, 8-conveying middle roller, 9-conveying side roller, 10-conveying drive motor, 11-transmission coupling, 12-transmission wheel, 13-transmission belt, 14-lifting connection port, 15-lifting top support plate, 16-lifting telescopic cylinder, 17-motor mounting port, 18-double-output shaft motor, 19 - sliding limit mouth, 20- driving wheel, 21- driving threaded rod, 22- driven wheel, 23- sliding base, 24- electric control telescopic cylinder, 25- mold clamping right angle plate, 26- locking slot, 27- plug-in fixing block, 28- bending support mold, 29- bridge support plate, 30- limiting push plate, 31- positioning side plate, 32- horizontal telescopic cylinder, 33- bending and pressing punch, 34- bending and pressing die, 35- bidirectional telescopic cylinder, 36- positioning telescopic cylinder. DETAILED DESCRIPTION

[0047] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0048] like Figures 1 to 6 As shown, a sheet metal bending equipment for processing distribution cabinet box plates includes a mounting base 1, which is a horizontally arranged square table, on which a bending workbench 2 is fixed, and the bending workbench 2 is a transversely extending square table. The bending workbench 2 is respectively provided with a conveying and loading component and a primary bending component, and the mounting base 1 is respectively provided with a lifting and transferring component, a sliding mold clamping component and a secondary press bending component.

[0049] Four supporting vertical plates 3 symmetrical in pairs are fixedly connected to the upper surface of the mounting base 1 , and the upper ends of the supporting vertical plates 3 are fixedly connected to the lower surface of the bending workbench 2 .

[0050] A concave swing mounting opening 4 is respectively provided on each transverse outer end face of the bending workbench 2. The primary bending assembly includes two symmetrically arranged swing bending plates 5. The swing bending plates 5 are rotatably installed between the opposite longitudinal inner walls of the swing mounting opening 4 and are arranged close to the transverse inner wall of the swing mounting opening 4. A swing driving motor 6 is respectively fixedly connected to each swing bending plate 5 on the longitudinal outer end face of the bending workbench 2. The end of the output shaft of the swing driving motor 6 passes through the bending workbench 2 and is fixedly connected to the side end face of the swing bending plate 5.

[0051] A longitudinally extending conveying installation opening 7 is opened in the middle of the upper surface of the bending workbench 2. The conveying loading assembly includes a conveying middle roller 8 and four conveying side rollers 9. The conveying middle roller 8 is rotatably installed in the conveying installation opening 7. The four conveying side rollers 9 are rotatably installed in two swinging installation openings 4 in groups of two. Two adjacent conveying side rollers 9 are arranged on the outer side of the swing bending plate 5.

[0052] Two conveying drive motors 10 are respectively fixedly connected to the two longitudinal side end faces of the bending workbench 2. The two conveying drive motors 10 are arranged opposite to the two outermost conveying side rollers 9. The output shaft ends of the conveying drive motors 10 pass through the bending workbench 2 and are fixedly connected to the side end faces of the corresponding conveying side rollers 9.

[0053] A horizontal transmission coupling 11 is fixedly connected to the longitudinal side end face of the intermediate conveying roller 8 , and the end of the transmission coupling 11 passes through the bending workbench 2 and extends to the outside thereof. A transmission coupling 11 is also fixedly connected to the side end face of each conveying side roller 9 .

[0054] A transmission wheel 12 is fixedly connected to the end of each transmission shaft 11 , and a transmission belt 13 is sleeved between two adjacent transmission wheels 12 .

[0055] The upper surface of the bending workbench 2 is also provided with two symmetrical lifting and connecting openings 14 , which are respectively arranged on both sides of the conveying and installing opening 7 , and the lifting and transferring assembly includes two lifting and supporting plates 15 , which are respectively arranged in the two lifting and connecting openings 14 .

[0056] Two vertical lifting and telescopic cylinders 16 are fixedly connected to the upper surface of the mounting base 1 corresponding to each lifting and telescopic supporting plate 15 , and the upper telescopic ends of the lifting and telescopic cylinders 16 are fixedly connected to the lower surface of the lifting and telescopic supporting plate 15 .

[0057] A longitudinally extending motor mounting opening 17 is provided in the middle of the upper surface of the mounting base 1. The motor mounting opening 17 is arranged directly below the conveying mounting opening 7. A dual-shaft motor 18 is fixedly installed in the motor mounting opening 17. Two longitudinally symmetrical sliding limit openings 19 are provided on the mounting base 1. The two sliding limit openings 19 are respectively arranged on both sides of the motor mounting opening 17. The ends of the two output shafts of the dual-shaft motor 18 extend into the sliding limit openings 19 respectively and are fixedly connected to a driving wheel 20.

[0058] Two parallel driving threaded rods 21 are rotatably installed in each sliding limit opening 19, and both ends of the driving threaded rods 21 are rotatably supported on the longitudinal inner wall of the sliding limit opening 19. A driven wheel 22 is fixedly connected to the outer peripheral wall near the end of each driving threaded rod 21, and the two driven wheels 22 are respectively engaged with the driving wheel 20 for transmission.

[0059] The sliding mold clamping assembly includes two symmetrically arranged sliding bases 23 , which are respectively slidably mounted in two sliding limit openings 19 , and two parallel driving threaded rods 21 respectively pass through and are threadedly connected to the sliding bases 23 .

[0060] Two symmetrical electrically-controlled telescopic cylinders 24 are laterally fixedly connected to the upper surface of each sliding base 23. The sliding mold clamping assembly also includes two symmetrically arranged mold clamping right-angle plates 25. The mold clamping right-angle plates 25 are raised and lowered above the sliding base 23. The upper telescopic end of the electrically-controlled telescopic cylinder 24 is fixedly connected to the lower end surface of the mold clamping right-angle plate 25.

[0061] A locking slot 26 is provided on the longitudinal side wall of one of the mold clamping right-angle plates 25 , and an inserting fixing block 27 matching the locking slot 26 is fixedly connected to the longitudinal side wall of the other mold clamping right-angle plate 25 .

[0062] Two bending support molds 28 are fixedly connected to the two lateral side walls of each mold clamping right-angle plate 25, and the bending support mold 28 is a semi-cylindrical mold extending longitudinally.

[0063] The secondary press bending assembly includes two symmetrically arranged bridge-shaped support plates 29, which are laterally arranged on both sides of the two mold clamping right-angle plates 25. The lower ends of each bridge-shaped support plate 29 respectively cross the bending workbench 2 and are fixedly connected to the upper surface of the mounting base 1.

[0064] Two positioning telescopic cylinders 36 are fixedly connected to the two longitudinal inner walls of each bridge-shaped support plate 29 , and the telescopic ends of each positioning telescopic cylinder 36 are fixedly connected to the limiting push plate 30 , and the lower surface of the limiting push plate 30 is arranged closely against the upper surface of the bending workbench 2 .

[0065] A longitudinally extending positioning side plate 31 is fixedly connected to the upper surface of each bridge-shaped support plate 29 , and two symmetrical horizontal telescopic cylinders 32 are fixedly connected to the transverse end surface of each positioning side plate 31 . A bending punch 33 is fixedly connected to the telescopic end of the horizontal telescopic cylinder 32 .

[0066] Two symmetrical bending and pressing dies 34 are telescopically provided on the upper surface of each mold clamping right-angle plate 25, and two symmetrical bidirectional telescopic cylinders 35 are provided between the two bending and pressing dies 34. The two telescopic ends of the bidirectional telescopic cylinders 35 are respectively fixed to the back sides of the two bending and pressing dies 34, and the bidirectional telescopic cylinders 35 are fixedly installed on the upper surface of the mold clamping right-angle plate 25.

[0067] When the present invention is in use: first, one end of the strip box plate to be bent is placed flat on the bending workbench 2, and two conveying drive motors 10 are started respectively. The conveying drive motor 10 drives the two conveying side rollers 9 at the end to rotate, and then drives the remaining conveying side rollers 9 and the conveying intermediate roller 8 to rotate synchronously through the transmission of the transmission wheel 12 and the transmission belt 13, so as to convey the box plate to the middle of the upper surface of the bending workbench 2; the positioning telescopic cylinder 36 is controlled to extend, and the limit push plate 30 is driven to move longitudinally to bend and position the box plate; the double-output shaft motor 18 is started, and the double-output shaft motor 18 drives the active rotating wheel 20 to rotate, and through the transmission of the driven rotating wheel 22 and the driving threaded rod 21, the two sliding bases 23 are driven to slide longitudinally respectively, so as to drive the two mold clamping right-angle plates 25 to engage with the mold; the electric-controlled telescopic cylinder 24 is controlled to shorten, and the two mold clamping right-angle plates 25 are driven to move downward, so as to press the middle part of the box plate on the bending workbench 2; The two swing drive motors 6 are driven, and the swing drive motors 6 drive the swing bending plate 5 to swing from the horizontal position to the vertical position, so as to fold the two ends of the strip box plate upward; after the strip box plate is completely formed, the swing drive motor 6 is started again to control the swing bending plate 5 to swing back to the horizontal position; the electric control telescopic cylinder 24 is controlled to extend, drive the two mold right-angle plates 25 to rise, and move the bending die 34 to the same horizontal height as the bending punch 33; the lifting and telescopic cylinder 16 is controlled to extend, drive the lifting and supporting plate 15 to rise, and lift the box plate that has been bent once as a whole; at the same time, the horizontal telescopic cylinder 32 and the two-way telescopic cylinder 35 are controlled to extend, drive the bending punch 33 and the bending die 34 to move in opposite directions, and bend and shape the upper side edge of the bent box plate; after the secondary bending is completed, the double-output shaft motor 18 is started again to drive the two sliding bases 23 to move in the opposite direction, separate the two mold right-angle plates 25, and then remove the bent box plate as a whole.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A sheet metal bending equipment for processing distribution cabinet panels, characterized in that: The invention comprises a mounting base (1), wherein the mounting base (1) is a horizontally arranged square table, a bending workbench (2) is fixed on the mounting base (1), the bending workbench (2) is a transversely extending square table, a conveying and loading component and a primary bending component are respectively arranged on the bending workbench (2), and a lifting and transferring component, a sliding mold clamping component and a secondary press bending component are respectively arranged on the mounting base (1); Each transverse outer end surface of the bending workbench (2) is respectively provided with an inwardly concave swing mounting opening (4); the primary bending assembly comprises two symmetrically arranged swing bending plates (5); the swing bending plates (5) are rotatably mounted between opposite longitudinal inner walls of the swing mounting opening (4) and are arranged close to the transverse inner wall of the swing mounting opening (4); a swing driving motor (6) is respectively fixedly connected to each of the swing bending plates (5) on the longitudinal outer end surface of the bending workbench (2); the output shaft end of the swing driving motor (6) passes through the bending workbench (2) and is fixedly connected to the side end surface of the swing bending plate (5); The sliding mold clamping assembly comprises two symmetrically arranged sliding bases (23), the upper surface of each sliding base (23) being fixedly connected to two symmetrical electrically controlled telescopic cylinders (24) in the transverse direction, the sliding mold clamping assembly further comprises two symmetrically arranged mold clamping right-angle plates (25), the mold clamping right-angle plates (25) being arranged to be lifted above the sliding bases (23), and the upper telescopic ends of the electrically controlled telescopic cylinders (24) being fixedly connected to the lower end surfaces of the mold clamping right-angle plates (25); A locking slot (26) is provided on the longitudinal side wall of one of the mold clamping right-angle plates (25), and a plug-in fixing block (27) matching the locking slot (26) is fixedly connected to the longitudinal side wall of the other mold clamping right-angle plate (25); Two lateral side walls of each of the mold clamping right-angle plates (25) are respectively fixedly connected to two bending support molds (28), wherein the bending support molds (28) are semi-cylindrical molds extending longitudinally; The secondary press-bending assembly comprises two symmetrically arranged bridge-shaped support plates (29), the two bridge-shaped support plates (29) being arranged laterally on both sides of the two mold clamping right-angle plates (25), and the lower ends of each bridge-shaped support plate (29) respectively span the bending workbench (2) and are fixedly connected to the upper surface of the mounting base (1); Two positioning telescopic cylinders (36) are respectively fixedly connected to the two longitudinal inner walls of each of the bridge-shaped support plates (29); the telescopic ends of each of the positioning telescopic cylinders (36) are respectively fixedly connected to a limiting push plate (30); the lower surface of the limiting push plate (30) is arranged in close contact with the upper surface of the bending workbench (2); The upper surface of each bridge-shaped support plate (29) is respectively fixedly connected to a longitudinally extending positioning side plate (31), and the transverse end surface of each positioning side plate (31) is respectively fixedly connected to two symmetrical horizontal telescopic cylinders (32), and the telescopic ends of the horizontal telescopic cylinders (32) are respectively fixedly connected to a bending and pressing punch (33); Two symmetrical bending and pressing dies (34) are telescopically arranged on the upper surface of each of the mold clamping right-angle plates (25), two symmetrical bidirectional telescopic cylinders (35) are arranged between the two bending and pressing dies (34), two telescopic ends of the bidirectional telescopic cylinders (35) are respectively fixedly connected to the back sides of the two bending and pressing dies (34), and the bidirectional telescopic cylinders (35) are fixedly mounted on the upper surface of the mold clamping right-angle plates (25).

2. The sheet metal bending equipment for processing distribution cabinet panels according to claim 1 is characterized in that: Four supporting vertical plates (3) that are symmetrical in pairs are fixedly connected to the upper surface of the mounting base (1), and the upper ends of the supporting vertical plates (3) are fixedly connected to the lower surface of the bending workbench (2).

3. The sheet metal bending equipment for processing distribution cabinet panels according to claim 1 is characterized in that: A longitudinally extending conveying installation opening (7) is provided in the middle of the upper surface of the bending workbench (2), and the conveying loading assembly comprises a conveying middle roller (8) and four conveying side rollers (9), wherein the conveying middle roller (8) is rotatably installed in the conveying installation opening (7), and the four conveying side rollers (9) are rotatably installed in two swinging installation openings (4) in a group of two, and two adjacent conveying side rollers (9) are arranged on the outer sides of the swinging bending plate (5).

4. The sheet metal bending equipment for processing a switchboard panel according to claim 3 is characterized in that: Two conveying drive motors (10) are respectively fixedly connected to the two longitudinal side end surfaces of the bending workbench (2), and the two conveying drive motors (10) are arranged opposite to the two outermost conveying side rollers (9). The output shaft ends of the conveying drive motors (10) pass through the bending workbench (2) and are fixedly connected to the side end surfaces of the corresponding conveying side rollers (9).

5. The sheet metal bending equipment for processing the panel of the power distribution cabinet according to claim 3 is characterized in that: A horizontal transmission shaft (11) is fixedly connected to the longitudinal side end surface of the intermediate conveying roller (8), the end of the transmission shaft (11) passes through the bending workbench (2) and extends to the outside thereof, and the side end surface of each of the conveying side rollers (9) is also fixedly connected to the transmission shaft (11).

6. The sheet metal bending equipment for processing the panel of the power distribution cabinet according to claim 5 is characterized in that: A transmission wheel (12) is fixedly connected to the end of each transmission shaft (11), and a transmission belt (13) is sleeved between two adjacent transmission wheels (12).

7. The sheet metal bending equipment for processing a switchboard panel according to claim 3 is characterized in that: The upper surface of the bending workbench (2) is also provided with two symmetrical lifting and connecting openings (14), the two lifting and connecting openings (14) are respectively arranged on both sides of the conveying and installing opening (7), and the lifting and transferring assembly comprises two lifting and supporting plates (15), the two lifting and supporting plates (15) are respectively arranged in the two lifting and connecting openings (14); Two vertical lifting and telescopic cylinders (16) are fixedly connected to the upper surface of the mounting base (1) corresponding to each lifting and telescopic support plate (15), and the upper telescopic ends of the lifting and telescopic cylinders (16) are fixedly connected to the lower surface of the lifting and telescopic support plate (15).

8. The sheet metal bending equipment for processing a switchboard panel according to claim 3 is characterized in that: A longitudinally extending motor mounting opening (17) is provided in the middle of the upper surface of the mounting base (1), the motor mounting opening (17) being arranged directly below the conveying mounting opening (7), a dual-shaft motor (18) being fixedly mounted in the motor mounting opening (17), two longitudinally symmetrical sliding limit openings (19) being provided on the mounting base (1), the two sliding limit openings (19) being arranged on both sides of the motor mounting opening (17), two output shaft ends of the dual-shaft motor (18) respectively extending into the sliding limit openings (19) and being fixedly connected to driving wheels (20).

9. The sheet metal bending equipment for processing the panel of a power distribution cabinet according to claim 8, characterized in that: Two parallel driving threaded rods (21) are rotatably mounted in each of the sliding limit openings (19), and the two ends of the driving threaded rods (21) are rotatably supported on the longitudinal inner wall of the sliding limit opening (19), and a driven rotating wheel (22) is fixedly connected to the outer peripheral wall near the end of each driving threaded rod (21), and the two driven rotating wheels (22) are respectively engaged with the driving rotating wheel (20) for transmission; The two sliding bases (23) are respectively slidably mounted in the two sliding limit openings (19), and the two parallel driving threaded rods (21) respectively pass through and are threadedly connected to the sliding bases (23).

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