Bending machine for processing power distribution cabinet

Abstract

The utility model relates to the technical field of processing of power distribution cabinets, in particular to a bending machine for processing of a power distribution cabinet, which aims to solve the technical problems that the bending machine in the prior art needs to be rotated manually to change edges, and a pressing mechanism is easy to generate backstop interference with a plate, and specifically comprises a base, a supporting plate and a bending table, the supporting plate is arranged between the base and the bending table, the right end of the bending table is connected with a bending plate in a hinged mode, and the upper surface of the bending plate is flush with the bending table and can turn upwards along the hinged position. A positioning mechanism is arranged at the left end of the top of the bending table, and a pressing mechanism is arranged at the right end of the top of the bending table. Through the arrangement of the conveying groove, the rotary disc and the driving mechanism, rapid edge changing after a plate is bent is achieved, and manual adjustment of workers is not needed; by arranging the extension frame, the connecting frame, the lifting mechanism and the pressing block, the phenomenon of backstop interference between the bending machine and a large-size plate is effectively prevented, and the bending precision and the finished product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution cabinet processing, in particular to a bending machine for processing distribution cabinets. Background Art

[0002] The distribution cabinet, as a core component in the power system, is constructed according to the electrical wiring specification, integrating switch devices, measuring instruments, protective electrical appliances and auxiliary equipment on a closed or semi-closed metal cabinet. When producing a distribution cabinet, a bending machine is needed to bend the iron sheet into a rectangular ring structure to form an annular outer frame, and then weld the opening. After welding or riveting the back panel, partition board and cabinet door, the production of the distribution cabinet can be completed.

[0003] The utility model patent with the patent number "CN213701327U" discloses a bending machine for producing distribution cabinets, which includes a frame, a workbench, a pressing component and a bending component; the bending component includes a bending plate and a second driving member, the bending plate is hinged to the workbench, and the upper surface of the bending plate is flush with the upper surface of the workbench; the second driving member is arranged on the frame and connected with the bending plate, and the second driving member drives the bending plate to turn upwards; the bending plate is set to bend the workpiece by 90° and attach the workpiece to the side wall of the pressing block when the bending plate turns upwards to the vertical state. Through the above technical solution, the workpiece uses a sheet material. When producing an annular member, by bending the sheet material to form a bent member integrally composed of two, three or even four parts, the number of times of first corresponding splicing and then welding one by one of the workpiece is reduced, making the production of the annular outer frame more convenient and efficient.

[0004] However, the above-mentioned bending machine lacks a commutation mechanism and is only suitable for bending processing of annular outer frames; when bending processing parts such as back panels, door panels and partition boards formed by bending cross-shaped sheet metal parts and requiring conversion of the processing edge, it still requires workers to manually rotate and align the sheet metal parts, which not only increases the labor intensity, but also reduces the production efficiency and processing accuracy.

[0005] In addition, the pressing mechanism of the above-mentioned bending machine is arranged directly above the workbench, and it is easy to have a stop interference with the sheet metal parts when processing the annular outer frame of a large-size non-standard distribution cabinet, affecting the bending accuracy and the quality of the finished product. Summary of the Utility Model

[0006] The technical problem to be solved by the utility model is to provide a bending machine for processing distribution cabinets with a commutation mechanism and not easy to have a stop interference with sheet metal parts in view of the deficiencies of the prior art.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A bending machine for processing distribution cabinets, which is characterized in that:

[0009] It includes a base, a support plate and a bending table. The bending table is arranged above the base, and the support plate is arranged between the base and the bending table. The right end of the bending table is hinged with a bending plate. The upper surface of the bending plate is flush with the bending table and can be turned upward along the hinge.

[0010] A positioning mechanism is arranged at the left end of the top of the bending table, and a pressing mechanism is arranged at the right end of the top of the bending table.

[0011] The positioning mechanism includes a positioning groove opened on the bending table in the front-back direction. Two symmetrical positioning plates are movably arranged in the positioning groove, and the positioning plates can approach or move away from each other synchronously along the direction of the positioning groove.

[0012] The pressing mechanism includes two symmetrical extension frames fixedly arranged on the front and back sides of the bending table. A connecting frame is fixedly arranged above each extension frame. A lifting mechanism is arranged between each connecting frame and the extension frame. The output ends of the two lifting mechanisms are jointly connected with a horizontal pressing block.

[0013] A conveying groove is opened on the bending table between the positioning mechanism and the pressing mechanism in the left-right direction. A rotary disk capable of adsorbing a plate member is movably arranged in the conveying groove. A driving mechanism for driving the rotary disk to slide reciprocally along the conveying groove is arranged between the rotary disk and the support plate.

[0014] The technical problem to be solved by the present utility model can be further realized through the following steps. A positioning slider is fixedly arranged at the bottom of each positioning plate. A first lead screw matched with the positioning slider is arranged in the positioning groove. The first lead screw is a bidirectional lead screw, and a first motor for driving the first lead screw to rotate is arranged on the bending table.

[0015] The technical problem to be solved by the present utility model can be further realized through the following steps. The lifting mechanism includes two vertically arranged guide rods. A second lead screw matched with the pressing block is arranged in parallel between the two guide rods. A second motor for driving the second lead screw to rotate is arranged on the connecting frame.

[0016] The technical problem to be solved by the present utility model can be further realized through the following steps. A driving cylinder for driving the bending plate to turn upward is arranged between the base and the bending table. A bending part is arranged downward at the right end of the bending plate. The telescopic end of the driving cylinder is rotationally connected with the bending part through a hinge seat. An anti-collision groove is arranged between the bending table and the bending plate.

[0017] The technical problem to be solved by the present utility model can be further realized through the following steps. An extension plate is arranged in parallel at the right end of the bending plate. The extension plate and the bending plate are detachably connected through a fastening bolt, and the upper end surface of the bending plate is flush with the extension plate.

[0018] The technical problem to be solved by the present utility model can also be further realized through the following steps. The driving mechanism includes a transmission box, the rotary disk is rotatably installed above the transmission box, a connecting ear is provided at the bottom of the transmission box, a third lead screw cooperating with the connecting ear is provided between the transmission box and the support plate, and a third motor for driving its rotation is provided at one end of the third lead screw.

[0019] The technical problem to be solved by the present utility model can also be further realized through the following steps. A fourth motor for driving the rotary disk to rotate is provided in the transmission box, and the fourth motor is connected and driven to the rotary disk through a reduction gear set. A plurality of negative pressure suction holes are evenly distributed along the circumferential direction on the rotary disk.

[0020] The technical problem to be solved by the present utility model can also be further realized through the following steps. The vertical projection of the connecting frame and the bending table do not overlap each other.

[0021] The technical problem to be solved by the present utility model can also be further realized through the following steps. The positioning plate includes an inner plate and an outer plate arranged in the left-right direction, a connecting plate is provided between the inner plate and the outer plate in the front-back direction, and the front and rear ends of the connecting plate are respectively fixedly connected to the left end of the outer plate and the right end of the inner plate as a whole.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows: By setting the conveying groove, the rotary disk and the driving mechanism, rapid side changing after the plate is bent is realized, without manual adjustment by workers, reducing their labor intensity and improving production efficiency and processing accuracy; By setting the extension frame, the connecting frame, the lifting mechanism and the pressing block, the phenomenon of stop interference between the bending machine and large-sized plates is effectively prevented, improving the bending accuracy and the finished product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a top view schematic diagram of the present utility model;

[0024] Figure 2 is Figure 1 the front view cross-sectional view in the A direction in

[0025] Figure 3 It is a left view schematic diagram of the present utility model;

[0026] Figure 4 It is a structural schematic diagram of the bent plate of the present utility model;

[0027] Figure 5 It is a positioning schematic diagram of the positioning plate of the present utility model for a rectangular plate;

[0028] Figure 6 It is a positioning schematic diagram of the positioning plate of the present utility model for a cross-shaped plate (the dotted line in the figure is the bending line);

[0029] In the figure: 1 - base; 2 - supporting plate; 3 - bending table; 4 - bending plate; 5 - positioning groove; 6 - positioning plate; 7 - extension frame; 8 - connecting frame; 9 - pressing block; 10 - conveying groove; 11 - rotating disk; 12 - positioning slider; 13 - first lead screw; 14 - first motor; 15 - guide rod; 16 - second lead screw; 17 - second motor; 18 - driving cylinder; 19 - bending part; 20 - anti - collision groove; 21 - extension plate; 22 - transmission box; 23 - connecting ear; 24 - third lead screw; 25 - third motor; 26 - fourth motor; 27 - negative pressure suction hole; 28 - inner plate; 29 - outer plate; 30 - connecting plate; 31 - hinge seat; 32 - plate member. Detailed implementation manners

[0030] The following further describes the specific technical solutions of the present invention so that those skilled in the art can further understand the present invention without restricting its rights.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the invention.

[0032] Please refer to Figure 1 , 4, a bending machine for processing power distribution cabinets, including a base 1, a supporting plate 2 and a bending table 3. The bending table 3 is arranged above the base 1, the supporting plate 2 is arranged between the base 1 and the bending table 3, the right end of the bending table 3 is hingedly connected with a bending plate 4, and the upper surface of the bending plate 4 is flush with the bending table 3 and can be turned upwards to the vertical along the hinge.

[0033] A positioning mechanism is provided at the left end of the top of the bending table 3, and a pressing mechanism is provided at the right end of the top of the bending table 3.

[0034] The positioning mechanism is used to position the plate member during blanking, including a positioning groove 5 opened in the bending table along the front - rear direction. Two symmetrical positioning plates 6 are movably arranged in the positioning groove 5, and the positioning plates 6 can move synchronously closer to or away from each other along the direction of the positioning groove 5.

[0035] Please refer to Figures 5 - 6 , the positioning plate 6 includes an inner plate 28 and an outer plate 29 arranged along the left - right direction. A connecting plate 30 is arranged between the inner plate 28 and the outer plate 29 along the front - rear direction. The front and rear ends of the connecting plate 30 are respectively fixedly connected to the left end of the outer plate 29 and the right end of the inner plate 28 as a whole.

[0036] Please refer to Figures 1 - 3, The pressing mechanism is used to prevent the plate from shifting during bending. It includes two symmetrical extension frames 7 fixedly arranged on the front and rear sides of the bending table 3. Above each extension frame 7, a connecting frame 8 is fixedly provided. Between each connecting frame 8 and the extension frame 7, there is a lifting mechanism. The output ends of the two lifting mechanisms are jointly connected to a horizontal pressing block 9. The vertical projection of the above-mentioned connecting frame 8 does not overlap with the bending table 3, so as to obtain an anti-collision space above the bending table 3 to prevent interference with the plate stop.

[0037] Please refer to Figures 1 - 3 , On the bending table 3 between the positioning mechanism and the pressing mechanism, a conveying groove 10 is opened in the left-right direction. The conveying groove 10 is opened in the middle of the bending table 3. A rotary disk 11 capable of adsorbing the plate is movably arranged in the conveying groove 10. Between the rotary disk 11 and the support plate 2, there is a driving mechanism for driving the rotary disk 11 to slide reciprocally along the conveying groove 10. The rotary disk 11 is used to transport the plate positioned by the positioning mechanism to the pressing mechanism and the bending plate 4 for bending, and can also switch the processing edge of the plate by its own rotation.

[0038] Please refer to Figures 1 - 3 , As a structure for realizing the synchronous approach or separation of the positioning plates 6 along the direction of the positioning grooves 5, a positioning slider 12 is fixedly provided at the bottom of each positioning plate 6. In the positioning groove 5, a first lead screw 13 matched with the positioning slider 12 is provided. The first lead screw 13 is a bidirectional lead screw, and a first motor 14 for driving the first lead screw 13 to rotate is provided on the bending table 3.

[0039] Please refer to Figures 1 - 3 , As a structure for realizing the vertical lifting of the pressing block 9, the lifting mechanism includes two vertically arranged guide rods 15. Between the two guide rods 15, a second lead screw 16 matched with the pressing block 9 is arranged in parallel. On the connecting frame 8, a second motor 17 for driving the second lead screw 16 to rotate is provided.

[0040] Please refer to Figures 1 - 3 , As a structure for realizing the upward flipping of the bending plate 4, a driving cylinder 18 for driving the bending plate 4 to flip upward is provided between the base 1 and the bending table 3. The right end of the bending plate 4 is provided with a bent portion 19 downward. In the middle of the left side of the bent portion 19, a hinge seat is fixedly provided. The telescopic end of the driving cylinder 18 is rotatably connected to the bent portion 19 through the hinge seat 31. An anti-collision groove 20 is provided between the bending table 3 and the bending plate 4, and the anti-collision groove 20 can prevent interference between the bending plate 4 and the bending table 3 when the bending plate 4 is turned up.

[0041] Please refer to Figures 1 - 4, in the above structure, an extension plate 21 is provided in parallel at the right end of the bending plate 4. The structure of the extension plate 21 is the same as that of the bending plate 4, and the upper end surface of the bending plate 4 is flush with the extension plate 21. Mounting holes are provided on both the bending part 19 of the extension plate 21 and the bending plate 4, and fastening bolts can be inserted into the mounting holes. In this way, the extension plate 21 and the bending plate 4 are detachably connected by the fastening bolts. The extension plate 21 is used to increase the bending length when processing large-sized plate parts, which can improve the flexibility of use of the bending machine of the present utility model and can be removed by the fastening bolts when not in use.

[0042] Please refer to Figures 1 - 3 , as a structure for realizing the reciprocating sliding of the rotary disk 11 along the conveying groove 10, the driving mechanism includes a transmission box 22. The rotary disk 11 is rotatably installed above the transmission box 22. A connecting ear 23 is provided at the bottom of the transmission box 22. A third lead screw 24 that cooperates with the connecting ear 23 is provided between the transmission box 22 and the support plate 2. One end of the third lead screw 24 is provided with a third motor 25 for driving its rotation.

[0043] In the above structure, a fourth motor 26 for driving the rotary disk 11 to rotate is provided in the transmission box 22. The fourth motor 26 and the rotary disk 11 are connected and driven through a reduction gear set. A plurality of negative pressure suction holes 27 are evenly distributed along the circumference on the rotary disk 11, and the negative pressure suction holes 27 are used for adsorbing and fixing the plate parts.

[0044] Working principle: 1. The steps of the present utility model in processing and manufacturing the annular outer frame of the power distribution cabinet are as follows:

[0045] (1) Positioning: Place the rectangular plate part on the bending table 3 to ensure that one end is located between the two positioning plates 6. Subsequently, start the first motor 14 to drive the bidirectional first lead screw 13 to rotate, so that the two positioning plates 6 move synchronously towards the center until the left end of the plate part is tightly attached to the outer plate 29, and the front and rear sides are closely attached to the connecting plate 30 to complete the positioning (as Figure 5 shown).

[0046] (2) Conveying: After positioning, the plate part is firmly adsorbed through the negative pressure suction holes 27 on the rotary disk 11. Then, the third motor 25 drives the third lead screw 24 to rotate, driving the transmission box 22 and the rotary disk 11 to slide to the right along the conveying groove 10 until the plate part is conveyed to a predetermined position above the bending plate 4.

[0047] (3) Single bending: When the plate part reaches the specified position, the second motor 17 is started to drive the second lead screw 16 to rotate, so that the pressing block 9 descends along the guide rod 15 to tightly press the plate part on the bending table 3. Subsequently, the piston rod of the driving cylinder 18 extends to push the bending plate 4 to rotate upwards by 90° around the hinge point to complete a single bending. After the bending is completed, the piston rod of the cylinder contracts, and the second motor 17 rotates in the reverse direction, and the bending plate 4 and the pressing block 9 are reset.

[0048] (4) Continuous bending: Repeat steps (2) and (3). According to the design requirements of the annular outer frame, complete the secondary and tertiary bending operations in sequence. Before each bending, ensure that the plate has been moved to the new bending position and fixed by the pressing block 9.

[0049] (5) Taking out the finished product: After completing all bending operations, lift the pressing block 9, drive the rotary disk 11 to move the plate out of the bending area, and take down the finished product. At the same time, reset components such as the pressing block 9 and the bending plate 4 to their initial states to prepare for the next processing.

[0050] 2. The steps of the present utility model in processing and manufacturing the backboard, partition board and cabinet door of the power distribution cabinet are as follows:

[0051] (1) Positioning: Place the cross-shaped plate on the bending table 3, with one end placed between the two positioning plates 6. Drive the bidirectional lead screw to rotate through the first motor 14, move the positioning plates 6 inwards, and embed the rectangular opening of the plate between the inner plate 28 and the connecting plate 30 to achieve positioning (as shown in Figure 6 the figure).

[0052] (2) Transportation: After positioning, move the rotary disk 11 to the center of the plate and fix it, and then move the fixed plate to the predetermined position of the bending plate 4 through the rotary disk 11.

[0053] (3) Single-sided bending: When the plate reaches the predetermined position, start the pressing mechanism, make the pressing block 9 descend along the guide rod 15 and tightly press on the plate, and then operate the piston rod of the driving cylinder 18 to extend, pushing the bending plate 4 to turn upwards by 90° around the hinge point to complete the single-sided bending of the plate. After the bending is completed, the piston rod of the cylinder contracts, and the second motor 17 rotates in the reverse direction, and the bending plate 4 and the pressing block 9 are reset.

[0054] (4) Side changing and repeated bending: After completing the single-sided bending, operate the rotary disk 11 to move left to the middle of the transportation groove 10, and drive the rotary disk 11 to rotate by 90° through the fourth motor 26 in the transmission box 22 to realize the switching of the processing side, and then repeat steps (2) and (3) to bend the other side of the plate. Repeat this process until all sides of the plate are bent.

[0055] (5) Taking out the finished product: After completing all bending, lift the pressing block 9, drive the rotary disk 11 to move the plate out of the bending area, and take down the finished product. At the same time, reset components such as the pressing block 9 and the bending plate 4 to their initial states to prepare for the next processing.

[0056] The utility model realizes the rapid edge change after the bending of the plate by setting a conveying groove 10, a rotary disk 11 and a driving mechanism, without manual adjustment by workers, reducing their labor intensity and improving production efficiency and processing accuracy; by setting an extension frame 7, a connecting frame 8, a lifting mechanism and a pressing block 9, the phenomenon of stop interference between the bending machine and large-sized plate is effectively prevented, and the bending accuracy and finished product quality are improved.

[0057] Obviously, the described embodiments are some, but not all, of the embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

Claims

1. A bending machine for processing power distribution cabinets, characterized in that: It includes a base, a support plate and a bending table. The bending table is arranged above the base, the support plate is arranged between the base and the bending table, the right end of the bending table is hinged with a bending plate, and the upper surface of the bending plate is flush with the bending table and can be turned upwards along the hinge. A positioning mechanism is arranged at the left end of the top of the bending table, and a pressing mechanism is arranged at the right end of the top of the bending table. The positioning mechanism includes a positioning groove opened on the bending table in the front-back direction. Two symmetrical positioning plates are movably arranged in the positioning groove, and the positioning plates can approach or move away from each other synchronously along the direction of the positioning groove. The pressing mechanism includes two symmetrical extension frames fixedly arranged on the front and back sides of the bending table. A connecting frame is fixedly arranged above each extension frame, and a lifting mechanism is arranged between each connecting frame and the extension frame. The output ends of the two lifting mechanisms are jointly connected with a horizontal pressing block. A conveying groove is opened on the bending table between the positioning mechanism and the pressing mechanism in the left-right direction. A rotating disk capable of adsorbing the plate is movably arranged in the conveying groove, and a driving mechanism for driving the rotating disk to slide reciprocally along the conveying groove is arranged between the rotating disk and the support plate.

2. The bending machine for processing power distribution cabinets according to claim 1, wherein: A positioning slider is fixedly arranged at the bottom of each positioning plate, and a first lead screw matched with the positioning slider is arranged in the positioning groove. The first lead screw is a bidirectional lead screw, and a first motor for driving the first lead screw to rotate is arranged on the bending table.

3. The bending machine for processing power distribution cabinets according to claim 1, characterized in that: The lifting mechanism includes two vertically arranged guide rods. A second lead screw matched with the pressing block is arranged in parallel between the two guide rods, and a second motor for driving the second lead screw to rotate is arranged on the connecting frame.

4. The bending machine for processing power distribution cabinets according to claim 1, characterized in that: A driving cylinder for driving the bending plate to turn upwards is arranged between the base and the bending table. A bending part is arranged downward at the right end of the bending plate. The telescopic end of the driving cylinder is rotationally connected with the bending part through a hinge seat, and an anti-collision groove is arranged between the bending table and the bending plate.

5. The bending machine for processing power distribution cabinets according to claim 4, wherein: An extension plate is arranged in parallel at the right end of the bending plate. The extension plate and the bending plate are detachably connected by a fastening bolt, and the upper end surface of the bending plate is flush with the extension plate.

6. The bending machine for processing power distribution cabinets according to claim 1, wherein: The driving mechanism includes a transmission box. The rotating disk is rotatably installed above the transmission box. A connecting ear is arranged at the bottom of the transmission box. A third lead screw matched with the connecting ear is arranged between the transmission box and the support plate. A third motor for driving the third lead screw to rotate is arranged at one end of the third lead screw.

7. The bending machine for processing power distribution cabinets according to claim 6, characterized in that: A fourth motor for driving the rotating disk to rotate is arranged in the transmission box. The fourth motor and the rotating disk are connected and driven through a reduction gear set. A plurality of negative pressure suction holes are evenly distributed along the circumference on the rotating disk.

8. The bending machine for processing distribution cabinets according to claim 1, wherein: The vertical projection of the connecting frame and the bending table do not overlap each other.

9. The bending machine for processing power distribution cabinets according to claim 1, wherein: The positioning plate includes an inner plate and an outer plate arranged in the left-right direction. A connecting plate is arranged between the inner plate and the outer plate in the front-back direction. The front and rear ends of the connecting plate are respectively fixedly connected and integrated with the left end of the outer plate and the right end of the inner plate.

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