Bending machine for ring main unit production

Abstract

The invention discloses a bending machine for ring main unit production, which comprises a supporting table, a conveying device, a positioning device, a pressing device and a bending device, a plurality of metal plates are arranged on the conveying device, the positioning device comprises a first positioning plate and a second positioning plate, the pressing device is arranged on the supporting table and comprises a plurality of positioning pressing plates and a pressing plate, and the pressing plate is arranged on the supporting table. A bending shaft, a bending table and a plurality of bending pressing plates are arranged in the bending device, and gaps which are vertically arranged are formed between the bending pressing plates. The conveying device conveys a plurality of metal plates to the position between the first positioning plate and the second positioning plate and is positioned, meanwhile, the metal plates are inserted into gaps between the positioning pressing plate and the bending pressing plate in a matched mode, and after the abutting pressing plate abuts against and fixes the metal plates, the bending pressing plate drives all the metal plates to be bent at the same time. The metal plate bending device has the beneficial effects that a plurality of metal plates can be bent into the same shape at the same time, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of bending equipment, and in particular relates to a bending machine for producing ring network cabinets. Background Art

[0002] A ring main unit (RMU) is a group of electrical transmission and distribution equipment installed in a metal or non-metallic insulating cabinet or made into an assembled interval ring main unit. Its core parts use load switches and fuses. It has the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is currently widely used in industrial, residential, rail transportation and other fields.

[0003] The cabinet body of the ring network cabinet is mainly composed of multiple bent or straight metal plates. In order to obtain the bent metal plates, a bending machine is needed. The existing bending machine usually includes a conveying device, a positioning device, a pressing device, and a bending device. After the metal plate is placed on the conveying device, it is transported to the positioning device, and then pressed and fixed by the pressing device, and finally bent by the bending device.

[0004] When multiple metal plates are directly stacked and bent by a bending device, the bent portion of the metal plate on the outside will be closer to the edge of the metal plate, that is, the multiple metal plates obtained at this time are different from each other. If multiple identical bent metal plates are required, each metal plate still needs to be bent one by one, which results in low production efficiency. Summary of the Invention

[0005] To address the problem that existing bending machines used in ring main unit production can only bend a single metal plate at a time and have low overall bending efficiency, the following invention is proposed: 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said bolt has a round shank to contact with said linking rod.

[0006] After the conveying device transports multiple metal plates between the first positioning plate and the second positioning plate, the metal plates are inserted into the gap between the positioning pressure plate and the bending pressure plate, and the positioning cylinder drives the first positioning plate and the second positioning plate to position the metal plates. The side edges of the positioned metal plates are at the same distance from the side of the positioning pressure plate directly above them. Then, the pressing cylinder drives the pressing plate to press and fix the metal plates, and then the bending motor drives the bending table to rotate upward, and the bending pressure plate drives all the metal plates to bend at the same time, and the bent metal plates have exactly the same shapes.

[0007] Furthermore, the first positioning plate is provided with a plurality of first positioning heads arranged in a stepped manner, and the second positioning plate is provided with a plurality of second positioning heads arranged in an inverted stepped manner. After the first positioning heads and the second positioning heads move to contact all metal plates, the metal plates are positioned and the side spacing between each metal plate and the positioning pressure plate directly above it is the same.

[0008] Furthermore, the support platform is also provided with a first slide rail and a second slide rail, and the first slide rail and the second slide rail are respectively movably provided with a first slider and a second slider, and the first slider is provided with a mounting platform, and a placement platform located below the positioning pressure plate is fixedly provided on the mounting platform, and the positioning pressure plate is fixedly provided on the placement platform, and the bottom of the first positioning plate and the second positioning plate are fixedly connected with a second slider.

[0009] Furthermore, a third slide rail is provided on the mounting platform, and a plurality of rotating shaft seats are movably provided on the third slide rail. The rotating shaft seats are rotatably connected to the bending shaft. After the rotating shaft seats slide along the third slide rail, the force application point of the bending pressure plate is changed.

[0010] Furthermore, a first limiting plate and a second limiting plate are provided on the inner side of the mounting platform, a fixing groove is provided on the second limiting plate, a fixing bolt is fixedly connected to the fixing groove, an arc-shaped positioning pressure head is provided on one side of the positioning pressure plate, and a connecting hole fixedly connected to the fixing bolt is provided on the other side. During the transmission process, the metal plate contacts the first limiting plate and the second limiting plate in sequence to align and position in the front and rear directions.

[0011] Furthermore, an adjusting bolt and a fixing nut are provided on the rotating shaft seat near the inner side of the mounting platform, and an adjusting sleeve seat threadedly connected to the end of the adjusting bolt is provided at the bottom of the second limiting plate.

[0012] Furthermore, a guide opening that contracts inward is provided at the gap opening of the bending pressure plate, and an outer baffle is provided on one side of the pressure plate to block the guide opening of the bending pressure plate to prevent the metal plate from detaching from the bending pressure plate during the bending process.

[0013] Furthermore, the conveying device also includes a conveyor belt and a lifting cylinder connected to the bottom of the conveyor belt. The metal plates are arranged at intervals on the conveyor belt. After the conveyor belt transports the metal plates to the positioning device, the lifting cylinder drives the conveyor belt to move downward and completely separate from the metal plates, and the metal plates are in contact with the placement table.

[0014] Furthermore, the conveyor belt is provided with a plurality of separation pads, the metal plates are provided between the separation pads, and each separation pad is provided with a positioning block which is isolated on the outside of the metal plate.

[0015] The present invention proposes a bending machine for the production of ring network cabinets, which has the beneficial effect that after positioning by a first positioning plate and a second positioning plate, the metal plate is bent by a positioning pressure plate and a bending pressure plate, thereby producing multiple bent metal plates at one time. Since the bending points of the metal plates are at the same distance from the side when they are bent, the shapes of the metal plates finally bent are also exactly the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the three-dimensional structure of the bending machine in the present invention; Figure 2 This is a schematic diagram of the partial structure of the bending machine in the present invention Figure 1 ; Figure 3 This is a schematic diagram of the partial structure of the bending machine in the present invention Figure 2 ; Figure 4 This is a schematic diagram of the partial structure of the bending machine in the present invention Figure 3 ; Figure 5 Schematic diagram of the three-dimensional structure of the bending device and the metal plate in the present invention; Figure 6 Schematic diagram of the partial structure of the bending device and the pressing device in the present invention Figure 1 ; Figure 7 Schematic diagram of the partial structure of the bending device and the pressing device in the present invention Figure 1 .

[0017] The corresponding relationship between the illustration labels and component names in the figure is as follows: 1. Support table; 2. Conveying device; 3. Positioning device; 4. Pressing device; 5. Bending device; 6. Metal plate; 7. Positioning pressure plate; 8. Adjusting bolt; 11. First slide rail; 12. Second slide rail; 13. First slider; 14. Mounting table; 15. Third slide rail; 21. Conveyor belt; 22. Lifting cylinder; 31. Second slider; 32. First positioning plate; 33. Second positioning plate; 34. First positioning head; 35. Second positioning head; 36. Positioning cylinder; 41. Placing table; 42. Pressing plate; 43. Pressing cylinder; 44. First limiting plate; 45. Second limiting plate; 46. Fixing groove; 47. Fixing bolt; 51. Rotating shaft seat; 52. Bending shaft; 53. Bending table; 54. Bending pressure plate; 55. Bending motor; 56. Guide port; 57. Outer baffle; 61. Separation pad; 62. Positioning block; 71. Positioning pressure head; 72. Connecting hole; 81. Adjusting sleeve. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with embodiments.

[0019] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of this application.

[0020] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, for the purposes of describing the embodiments of the present application herein.

[0021] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0022] like Figure 1-Figure 7As shown, it is a preferred embodiment of the application, a bending machine for ring main unit production, comprising a support table 1, a conveying device 2, a positioning device 3, a pressing device 4, a bending device 5, the support table 1 is provided with a first slide rail 11 and a second slide rail 12 on both sides of the conveying device 2, the first slide rail 11 and the second slide rail 12 are respectively provided with a first sliding block 13 and a second sliding block 31, the first sliding block 13 is provided with a mounting table 14, the mounting table 14 can be connected with other transmission devices to fix and stop at a certain position, the mounting table 14 on one side of the conveying device 2 is fixedly provided with the pressing device 4, and the mounting table 14 on the other side is provided with the pressing device 4 and the bending device 5 at the same time, and the positioning device 3 is fixedly connected with the sliding block.

[0023] As shown in the figure, Figure 1-5 The conveying device 2 is provided with a plurality of metal plates 6 spaced apart, each metal plate 6 is provided with a separation pad 61 in contact with it, the separation pad 61 separates the metal plates 6, and is in fixed or non-fixed contact with the conveying device 2, the positioning device 3 comprises a first positioning plate 32, a second positioning plate 33 and a positioning cylinder 36, the first positioning plate 32 and the second positioning plate 33 are fixedly arranged on the second sliding block 31 and located on both sides of the mounting table 14, wherein the second positioning plate 33 is located on the outside of the mounting table 14 provided with the bending device 5, the positioning cylinder 36 is provided with two output ends which are respectively in transmission connection with the first positioning plate 32 and the second positioning plate 33; the pressing device 4 comprises a placing table 41, a positioning pressing plate 7, a pressing plate 42 and a pressing cylinder 43, the placing table 41 is fixedly arranged on the mounting table 14, the positioning pressing plate 7 is fixedly arranged on the placing table 41, the pressing plate 42 is movably arranged above the positioning pressing plate 7 and is in transmission connection with the pressing cylinder 43, wherein the positioning pressing plates 7 are arranged in the same gap interval in the vertical direction, and the end portions of the adjacent positioning pressing plates 7 are arranged in the same stepped shape in the horizontal direction; the bending device 5 comprises a rotating shaft seat 51, a bending shaft 52, a bending table 53, a bending pressing plate 54 and a bending motor 55, the rotating shaft seat 51 is provided with a plurality of and mounted on the mounting table 14, the bending shaft 52 is rotatably mounted on the rotating shaft seat 51 and is in transmission connection with the bending motor 55, the bending table 53 is fixedly connected with the bending shaft 52, and the bending pressing plate 54 is provided with a plurality of and arranged in the same gap vertically and fixedly arranged on the bending table 53.

[0024] The first and second positioning plates 32 and 33 are respectively moved to the first and second positioning plates 33 and 34, respectively, and the second and second positioning plates 33 are moved to the second and third positioning plates 33. Figure 5 As shown, the bending position of the metal plate 6 depends on the distance between its side end and the bending point. In the present invention, the bending point is the end of the positioning pressure plate 7, so the shapes of the metal plates 6 after bending are the same.

[0025] In this embodiment, the pressure plate 42 close to the side of the bending device 5 will also support the top of the positioning pressure plate 7, dispersing the pressure applied to the positioning pressure plate 7 during the bending process of the metal plate 6. In addition, it should be noted that the positioning device 3 is only responsible for the positioning of the metal plate 6 in the left and right directions, and is not responsible for the positioning of the metal plate 6 in the front and back directions. Since the bending occurs in the left and right directions, even if the metal plate 6 deviates in the front and back directions, it will not affect the final shape.

[0026] Furthermore, the first positioning plate 32 is provided with a plurality of first positioning heads 34 arranged in a stepped manner, and the second positioning plate 33 is provided with a plurality of second positioning heads 35 arranged in an inverted stepped manner. The end spacings between adjacent first positioning heads 34 or second positioning heads 35 are the same. After the first positioning heads 34 and the second positioning heads 35 are moved to contact all the metal plates 6, the metal plates 6 are arranged in a stepped manner close to the bending side. At this time, the metal plates 6 are positioned, and the side ends of each metal plate 6 are at the same spacing as the end of the positioning pressure plate 7 directly above it.

[0027] In this embodiment, if Figure 4-Figure 6As shown, a first limiting plate 44 and a second limiting plate 45 are further provided on the inner side of the mounting platform 14, and a plurality of fixing grooves 46 arranged at intervals in the vertical direction are provided on the second limiting plate 45. When the conveyor belt 21 moves inward, the metal plate 6 will contact the first limiting plate 44 and the second limiting plate 45 in turn, thereby completing the alignment in the front-to-back direction. A fixing bolt 47 is fixedly connected with a fixing thread in the fixing groove 46, and one end of the positioning pressure plate 7 is provided with an arc-shaped positioning pressure head 71, and the other end is provided with a connecting hole 72 fixedly connected with the fixing bolt 47, so as to fix the positioning pressure plate 7 in the fixing groove 46. By adjusting the fixing bolt 47, the spacing between the positioning pressure heads 71 ​​can be adjusted, thereby changing the bending position of the metal plate 6.

[0028] Further, if Figure 7 As shown, a third slide rail 15 is also provided on the mounting platform 14, and the rotating shaft seat 51 is movably arranged on the third slide rail 15. An adjusting bolt 8 and a fixing nut are also provided on the rotating shaft seat 51 near the inner side of the mounting platform 14. An adjusting sleeve 82 is also provided at the bottom of the second limiting plate 45, which is threadedly connected to the end of the adjusting bolt 8. After rotating the adjusting bolt 8, the position of the bending platform 53 and the bending pressure plate 54 can be changed, thereby changing the force position of the metal plate 6 when bending. The fixing nut limits and fixes the rotating shaft seat 51 from the inside; an inwardly contracted guide opening 56 is provided at the gap opening of the bending pressure plate 54, and an outer baffle 57 is also provided on one side of the pressure plate 42 to block the guide opening 56 of the bending pressure plate 54 to prevent the metal plate 6 from separating from the bending pressure plate 54 during the bending process.

[0029] Further, if Figures 1-4 As shown, the conveying device 2 also includes a conveyor belt 21 and a lifting cylinder 22 that is transmission-connected to the bottom of the conveyor belt 21. The metal plate 6 and the separation pad 61 are staggered and stacked on each other on the conveyor belt 21. After the conveyor belt 21 transports the metal plate 6 to the positioning device 3, the lifting cylinder 22 drives the conveyor belt 21 to move downward and completely separate from the metal plate 6. After that, the metal plate 6 is completely in contact with the placement table 41. A positioning block 62 is also provided on each separation pad 61 to block the outside of the metal plate 6. When the separation pad 61 is in fixed contact with the conveyor belt 21, it can be limited from the outside of the metal plate 6. In conjunction with the first limiting plate 44 and the second limiting plate 45, the metal plate 6 can be aligned and limited in the front and rear directions.

[0030] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A bending machine for producing a ring main unit, comprising a support platform (1), a conveying device (2), a positioning device (3), a pressing device (4), and a bending device (5) provided on the support platform (1), characterized in that: The conveying device (2) is provided with a plurality of spaced-apart metal plates (6), the positioning device (3) comprises a first positioning plate (32) and a second positioning plate (33) movably arranged on the support platform (1), the first positioning plate (32) and the second positioning plate (33) are both transmission-connected to a positioning cylinder (36), the pressing device (4) is provided on the support platform (1), and comprises a plurality of positioning pressure plates (7) and a pressure plate (42) movably arranged above the positioning pressure plate (7), the pressure plate (42) is transmission-connected to the pressure cylinder (43), and adjacent positioning pressure plates (7) are arranged at the same interval in the vertical direction and at the same side interval in the horizontal direction, the bending device (5) is provided with a bending shaft (52) rotatably mounted on the support platform (1), the bending shaft (52) is fixedly provided with a bending platform (53) and a plurality of pressure plates located above the bending platform (53) Bending plates (54), wherein gaps are arranged vertically between the bending plates (54), and the bending shaft (52) is connected to the bending motor (55); after the conveying device (2) transports a plurality of metal plates (6) between the first positioning plate (32) and the second positioning plate (33), the metal plates (6) are inserted into the gaps between the positioning plate (7) and the bending plate (54), and the positioning cylinder (36) drives the first positioning plate (32) and the second positioning plate (33) to position the metal plates (6). The side edges of the positioned metal plates (6) are spaced the same as the side edges of the positioning plate (7) directly above them. Then, the pressing cylinder (43) drives the pressing plate (42) to press and fix the metal plates (6), and then the bending motor (55) drives the bending table (53) to rotate upward, and the bending plate (54) drives all the metal plates (6) to bend simultaneously.

2. The bending machine for ring main unit production according to claim 1, characterized in that: The first positioning plate (32) is provided with a plurality of first positioning heads (34) arranged in a stepped manner, and the second positioning plate (33) is provided with a plurality of second positioning heads (35) arranged in an inverted stepped manner. After the first positioning heads (34) and the second positioning heads (35) move to contact all the metal plates (6), the metal plates (6) are positioned and the side spacing between each metal plate (6) and the positioning pressure plate (7) directly above it is the same.

3. The bending machine for ring main unit production according to claim 2, characterized in that: The support platform (1) is further provided with a first slide rail (11) and a second slide rail (12), and the first slide rail (11) and the second slide rail (12) are respectively provided with a first slider (13) and a second slider (31), and the first slider (13) is provided with a mounting platform (14), and the mounting platform (14) is fixedly provided with a placement platform (41) located below the positioning pressure plate (7), and the positioning pressure plate (7) is fixedly provided on the placement platform (41), and the bottoms of the first positioning plate (32) and the second positioning plate (33) are fixedly connected with the second slider (31).

4. The bending machine for ring main unit production according to claim 3, characterized in that: A third slide rail (15) is provided on the mounting platform (14), and a plurality of rotating shaft seats (51) are movably provided on the third slide rail (15), and the rotating shaft seats (51) are rotatably connected to the bending shaft (52).

5. The bending machine for producing ring main unit according to claim 4, characterized in that: A first limiting plate (44) and a second limiting plate (45) are further provided on the inner side of the mounting platform (14). A fixing groove (46) is provided on the second limiting plate (45). A fixing bolt (47) is fixedly connected to the fixing groove (46). An arc-shaped positioning pressure head (71) is provided on one side of the positioning pressure plate (7), and a connecting hole (72) is provided on the other side for fixing with the fixing bolt (47).

6. The bending machine for producing ring main unit according to claim 5, characterized in that: An adjusting bolt (8) is also provided on the rotating shaft seat (51) near the inner side of the mounting platform (14), and an adjusting sleeve seat (82) threadedly connected to the end of the adjusting bolt (8) is also provided at the bottom of the second limiting plate (45).

7. The bending machine for producing ring main units according to claim 6, characterized in that: An inwardly contracted guide opening (56) is provided at the gap opening of the bending pressure plate (54), and an outer baffle (57) is also provided on one side of the pressure plate (42) to block the guide opening (56) of the bending pressure plate (54).

8. The bending machine for ring main unit production according to claim 1, characterized in that: The conveying device (2) further comprises a conveyor belt (21) and a lifting cylinder (22) connected to the bottom of the conveyor belt (21). The metal plates (6) are arranged on the conveyor belt (21) at intervals. After the conveyor belt (21) transports the metal plates (6) to the positioning device (3), the lifting cylinder (22) drives the conveyor belt (21) to move downward and completely separate from the metal plates (6).

9. The bending machine for producing ring main unit according to claim 8, characterized in that: The conveyor belt (21) is further provided with a plurality of separation pads (61), the metal plates (6) are arranged between the separation pads (61), and each separation pad (61) is further provided with a positioning block (62) that blocks the outside of the metal plate (6).

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