A bending machine for ring main unit production

Abstract

The application discloses a bending machine for ring net cabinet 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 first and second positioning plates. The pressing device is arranged on the supporting table and comprises a plurality of positioning pressing plates and a pressing plate. The bending device is internally provided with a bending shaft, a bending table and a plurality of bending pressing plates. The bending pressing plates are provided with gaps arranged vertically. The conveying device conveys the plurality of metal plates to the first and second positioning plates and positions the metal plates. Meanwhile, the metal plates are inserted into the gaps between the positioning pressing plates and the bending pressing plates. After the pressing plate presses and fixes the metal plates, the bending pressing plates drive all the metal plates to bend simultaneously. The bending machine can bend a plurality of metal plates into the same shape simultaneously, thereby improving the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bending equipment, in particular to a bending machine for ring main unit production. BACKGROUND

[0002] The ring main unit is a group of power transmission and distribution electrical equipment installed in a metal or non-metal insulated cabinet or made into a split interval type ring network power supply unit. Its core part uses 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 transit and other fields.

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

[0004] After a plurality of metal plates are directly stacked and bent by the bending device, the bent part of the metal plate on the outer side will also be closer to the edge of the metal plate, that is, the plurality of metal plates obtained at this time are different from each other. If the same bent metal plate is needed, each metal plate still needs to be bent one by one, and the production efficiency is low. SUMMARY

[0005] In view of the problem that the existing ring main unit production bending machine can only bend a single metal plate at a time and the overall bending efficiency is low, the following invention is proposed:

[0006] A bending machine for ring main unit production, comprising a support table, a conveying device, a positioning device, a pressing device and a bending device arranged on the support table, a plurality of metal plates are arranged on the conveying device, the positioning device comprises a first positioning plate and a second positioning plate movably arranged on the support table, the first positioning plate and the second positioning plate are both drivingly connected with a positioning cylinder, the pressing device is arranged on the support table and comprises a plurality of positioning plates and a pressing plate movably arranged above the positioning plates, the pressing plate is drivingly connected with a pressing cylinder, adjacent positioning plates are arranged at the same interval in the vertical direction and at the same interval in the horizontal direction, the bending device is provided with a bending shaft rotatably installed on the support table, the bending shaft is fixedly provided with a bending table and a plurality of bending plates above the bending table, the bending plates are provided with gaps arranged vertically, and the bending shaft is drivingly connected with a bending motor.

[0007] The conveying device transports the plurality of metal plates between the first positioning plate and the second positioning plate, and then the metal plates are inserted into the gap between the positioning pressing plate and the bending pressing plate, 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 the same as the spacing of the side of the positioning pressing plate above, 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 pressing plate drives all the metal plates to bend at the same time, and the bent metal plates are completely the same in shape.

[0008] Further, 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, and after the first positioning head and the second positioning head move to contact all the metal plates, the metal plates are positioned and the spacing between each metal plate and the side of the positioning pressing plate above is the same.

[0009] Further, the support table is further provided with a first sliding rail and a second sliding rail, the first sliding rail and the second sliding rail are respectively provided with a first sliding block and a second sliding block movably arranged thereon, the first sliding block is provided with a mounting table, the mounting table is fixedly provided with a placing table below the positioning pressing plate, and the positioning pressing plate is fixedly arranged on the placing table, and the first positioning plate and the second positioning plate are both fixedly connected with the second sliding block.

[0010] Further, the mounting table is provided with a third sliding rail, a plurality of shaft seats are movably arranged on the third sliding rail, the shaft seats are rotatably connected with the bending shaft, and the shaft seats slide along the third sliding rail to change the force point of the bending pressing plate.

[0011] Further, the inside of the mounting table is further provided with a first limiting plate and a second limiting plate, the second limiting plate is provided with a fixed groove, a fixed bolt is fixedly connected with the fixed groove, one side of the positioning pressing plate is provided with an arc-shaped positioning head, and the other side is provided with a connecting hole fixedly connected with the fixed bolt, and the metal plates sequentially contact the first limiting plate and the second limiting plate during the conveying process to be aligned and positioned in the front and rear directions.

[0012] Further, the shaft seat close to the inside of the mounting table is further provided with an adjusting bolt and a fixed nut, and the bottom of the second limiting plate is further provided with an adjusting sleeve seat movably connected with the end of the adjusting bolt.

[0013] Further, the gap opening of the bending pressing plate is provided with an inwardly retracting guide opening, and the side of the pressing plate is further provided with an outer baffle for blocking the guide opening of the bending pressing plate, so as to prevent the metal plates from being separated from the bending pressing plate during the bending process.

[0014] Further, the conveying device further comprises a conveying belt and a lifting cylinder connected to the conveying belt, the metal plates are arranged on the conveying belt, the lifting cylinder drives the conveying belt to move downward and completely separate from the metal plates after the metal plates are conveyed to the positioning device, and the metal plates are in contact with the placing table.

[0015] Further, a plurality of separation pads are arranged on the conveying belt, the metal plates are arranged between the separation pads, and a positioning block is arranged on each separation pad and located outside the metal plate.

[0016] The bending machine for ring net cabinet production has the beneficial effects that the metal plates are bent by the positioning plate, the positioning pressing plate and the bending pressing plate after positioning by the first positioning plate and the second positioning plate, a plurality of bent metal plates are produced at one time, and the bent metal plates have the same shape because the distance between the bending point and the side of the metal plate is the same. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the bending machine in the application;

[0018] Figure 2 It is a schematic diagram of the partial structure of the bending machine in the application Figure One ;

[0019] Figure 3 It is a schematic diagram of the partial structure of the bending machine in the application Figure Two ;

[0020] Figure 4 It is a schematic diagram of the partial structure of the bending machine in the application Figure Three ;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the bending device and the metal plate in the application;

[0022] Figure 6 It is a schematic diagram of the partial structure of the bending device and the pressing device in the application Figure One ;

[0023] Figure 7 It is a schematic diagram of the partial structure of the bending device and the pressing device in the application Figure One .

[0024] The correspondence between the annotations of the drawings and the component names in the drawings is as follows:

[0025] 1, support table; 2, conveying device; 3, positioning device; 4, pressing device; 5, bending device; 6, metal plate; 7, positioning pressing plate; 8, adjusting bolt; 11, first sliding rail; 12, second sliding rail; 13, first sliding block; 14, mounting table; 15, third sliding rail; 21, conveying belt; 22, lifting cylinder; 31, second sliding block; 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 pressing plate; 55, bending motor; 56, guide port; 57, outer baffle; 61, partition pad; 62, positioning block; 71, positioning pressing head; 72, connecting hole; 81, adjusting sleeve. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely below in combination with embodiments.

[0027] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the scope of protection of the present application.

[0028] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so as to describe the embodiments of the present application herein.

[0029] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0030] As Figures 1-7As 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.

[0031] As shown in the figure, Figures 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 arrangement 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.

[0032] The multiple metal plates 6 and the partition pad 61 are staggered and placed on the conveying device 2, wherein the partition pad 61 is supported in the middle of the metal plates 6, and the metal plates 6 are spaced apart on both sides of the partition pad 61, the conveying device 2 carries the metal plates 6 to the placing table 41 between the first positioning plate 32 and the second positioning plate 33, in the process, the side of the metal plates 6 to be bent is matched and inserted into the gap between the positioning pressing plate 7 and the bending pressing plate 54, the positioning cylinder 36 drives the first positioning plate 32 and the second positioning plate 33 to move towards the metal plates 6 and position the metal plates 6, the side end of the positioned metal plates 6 is the same distance as the end of the positioning pressing plate 7 directly above, then the pressing cylinder 43 drives the pressing plate 42 to press and fix the metal plates 6 and the partition pad 61 downwards, and the driving cylinder drives the first positioning plate 32 and the second positioning plate 33 away from the metal plates 6, then the bending motor 55 drives the bending table 53 to rotate upwards, and the bending pressing plate 54 drives all the metal plates 6 on this side to bend at the same time, as shown in Figure 5 The bending position of the metal plates 6 depends on the distance between the side end and the bending point, and the bending point in the present application is the end of the positioning pressing plate 7, so the shapes of the bent metal plates 6 are the same.

[0033] In the present embodiment, the pressing plate 42 near the bending device 5 also resists above the positioning pressing plate 7, which disperses the pressure applied to the positioning pressing plate 7 during the bending of the metal plates 6, in addition, it needs to be particularly pointed out that the positioning device 3 is only responsible for the positioning of the metal plates 6 in the left-right direction, and is not responsible for the positioning of the metal plates 6 in the front-back direction, since the bending occurs in the left-right direction, therefore, even if the metal plates 6 have some deviation in the front-back direction, it will not affect the final shape.

[0034] Further, the first positioning plate 32 is provided with multiple first positioning heads 34 arranged in a stepped manner, and the second positioning plate 33 is provided with multiple second positioning heads 35 arranged in an inverted stepped manner, the end distance between adjacent first positioning heads 34 or second positioning heads 35 is the same, after the first positioning heads 34 and the second positioning heads 35 move to contact all the metal plates 6, the metal plates 6 near the bending side are arranged in a stepped manner, at this time, the metal plates 6 are positioned, and the side end of each metal plate 6 is the same distance as the end of the positioning pressing plate 7 directly above.

[0035] In the present embodiment, as shown in Figures 4-6As shown, the inside of the mounting table 14 is also provided with a first limiting plate 44 and a second limiting plate 45, the second limiting plate 45 is provided with a plurality of fixed slots 46 arranged in vertical direction, during the movement of the conveying belt 21 towards the inside, the metal plate 6 will sequentially contact with the first limiting plate 44 and the second limiting plate 45, so as to complete the alignment in the front-back direction, the fixed slots 46 are fixedly connected with fixing bolts 47, one end of the positioning pressing plate 7 is provided with an arc-shaped positioning pressing head 71, the other end is provided with a connecting hole 72 fixedly connected with the fixing bolt 47, so as to fix the positioning pressing plate 7 in the fixed slot 46, by adjusting the fixing bolt 47, the spacing between the positioning pressing heads 71 can be adjusted, so as to change the bending position of the metal plate 6.

[0036] Further, as shown in the drawings, Figure 7 The mounting table 14 is also provided with a third sliding rail 15, the rotating shaft seat 51 is movably arranged on the third sliding rail 15, the rotating shaft seat 51 near the inside of the mounting table 14 is also provided with an adjusting bolt 8 and a fixing nut, the bottom of the second limiting plate 45 is also provided with an adjusting sleeve 82 connected with the end of the adjusting bolt 8, after rotating the adjusting bolt 8, the position of the bending table 53 and the bending pressing plate 54 can be changed, and then the stress position of the bent metal plate 6 is changed, the fixing nut limits and fixes the rotating shaft seat 51 from the inside; the gap opening of the bending pressing plate 54 is provided with an inwardly retracting guide opening 56, the side of the pressing plate 42 is also provided with an outer baffle 57 covering the guide opening 56 of the bending pressing plate 54, so as to prevent the metal plate 6 from separating from the bending pressing plate 54 during the bending process.

[0037] Further, as shown in the drawings, Figures 1-4 The conveying device 2 further includes a conveying belt 21 and a lifting cylinder 22 connected below the conveying belt 21, the metal plate 6 and the separation pad 61 are alternately stacked on the conveying belt 21, after the conveying belt 21 transports the metal plate 6 to the positioning device 3, the lifting cylinder 22 drives the conveying belt 21 to move downward and completely separates from the metal plate 6, then the metal plate 6 is in complete contact with the placing table 41, the positioning block 62 is also arranged on each separation pad 61 and blocks the outside of the metal plate 6, when the separation pad 61 is in fixed contact with the conveying belt 21, the metal plate 6 can be limited from the outside, cooperating with the first limiting plate 44 and the second limiting plate 45, the metal plate 6 can be aligned and limited in the front-back direction.

[0038] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. 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) and a bending device (5) arranged on the support table (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 table (1), the first positioning plate (32) and the second positioning plate (33) are both drivingly connected with a positioning cylinder (36), the pressing device (4) is arranged on the support table (1) and comprises a plurality of positioning pressing plates (7) and a pressing plate (42) movably arranged above the positioning pressing plate (7), the pressing plate (42) is drivingly connected with a pressing cylinder (43), adjacent positioning pressing plates (7) are arranged in the vertical direction with the same spacing and arranged in the horizontal direction with the same side spacing, the bending device (5) is provided with a bending shaft (52) rotatably arranged on the support table (1), the bending shaft (52) is fixedly provided with a bending table (53) and a plurality of bending pressing plates (54) above the bending table (53), the bending pressing plates (54) are provided with gaps arranged in the vertical direction, and the bending shaft (52) is drivingly connected with a bending motor (55); after the conveying device (2) transports a plurality of metal plates (6) to between the first positioning plate (32) and the second positioning plate (33), the metal plates (6) are inserted into the gaps between the positioning pressing plates (7) and the bending pressing plates (54), 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) have the same spacing with the side portions of the positioning pressing plates (7) above, 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 pressing plates (54) drive all the metal plates (6) to bend at the same time.

2. The bending machine for producing ring main unit 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, the second positioning plate (33) is provided with a plurality of second positioning heads (35) arranged in an inverted stepped manner, 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 positioned, and the spacing between each metal plate (6) and the side portion of the positioning pressing plate (7) above is the same.

3. The bending machine for producing ring main unit according to claim 2, characterized in that: The support table (1) is further provided with a first sliding rail (11) and a second sliding rail (12), the first sliding rail (11) and the second sliding rail (12) are respectively movably 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) is fixedly provided with a placing table (41) below the positioning pressing plate (7), and the positioning pressing plate (7) is fixedly arranged on the placing table (41). The first positioning plate (32) and the second positioning plate (33) are both fixedly connected with the second sliding block (31).

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

5. The bending machine for producing ring main unit according to claim 4, characterized in that: The installation table (14) is internally provided with a first limiting plate (44) and a second limiting plate (45), the second limiting plate (45) is provided with a fixing groove (46), the fixing groove (46) is fixedly connected with a fixing bolt (47) in a threaded mode, one side of the positioning pressing plate (7) is provided with an arc-shaped positioning pressing head (71), and the other side is provided with a connecting hole (72) fixedly connected with the fixing bolt (47) in a threaded mode.

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

7. The bending machine for producing ring main unit according to claim 6, characterized in that: The gap opening of the bending pressing plate (54) is provided with an inwardly retracting guide opening (56), and the bending pressing plate (54) guide opening (56) is further provided with an outer baffle (57) on one side of the pressing plate (42).

8. The bending machine for producing ring main unit according to claim 1, characterized in that: The conveying device (2) further comprises a conveying belt (21) and a lifting cylinder (22) drivingly connected below the conveying belt (21), the metal plate (6) is arranged on the conveying belt (21) in a spaced mode, and after the conveying belt (21) conveys the metal plate (6) to the positioning device (3), the lifting cylinder (22) drives the conveying belt (21) to move downward and completely separates from the metal plate (6).

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

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