Bus bending auxiliary device

Abstract

The application discloses a bus bending auxiliary device, which is arranged on a bus bending machine and comprises a mold, a turnover structure and a spring shaft structure. An opening is arranged on the end face of the mold. The turnover structure is rotatably arranged on the opening of the mold through the spring shaft structure. The turnover structure is arranged in pairs on the mold, and gaps are arranged between the turnover structures. The device is arranged on the bending machine. When the pushing end of the bending machine pushes the bus to be bent forward, the bending end enters the gap between the oppositely arranged turnover plates. The turnover plates are pushed to rotate to the limiting surface. After the turnover plates are parallel to the limiting surface, the turnover plates apply extrusion force from both sides of the bus respectively, thereby realizing uniform force application on the bus, avoiding stress concentration caused by direct contact between the bus and the sharp edge of the mold, avoiding the formation of indentation on the surface of the bus during the bending of the bus, and effectively protecting the integrity of the bus.

Description

Technical Field

[0001] This application relates to the field of busbar copper busbar processing technology, and in particular to a busbar bending auxiliary device. Background Technology

[0002] The existing busbars come in various sizes. When bending busbars on existing bending machines, the feed mechanism pushes the busbar against the die to achieve bending. However, this easily creates noticeable indentations on the busbar surface in the stress area of ​​the bending process. As the bending angle increases, the depth of these indentations further increases, affecting the safety of the bent busbar in use. This also impacts the quality and appearance of the processed material. Some severely indented busbars require re-grinding, adding processing steps and reducing efficiency.

[0003] The information disclosed in the background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] This application provides a busbar bending auxiliary device to address the above-mentioned technical problems. This device can reduce stress concentration on the surface of the busbar during bending, thereby avoiding the formation of indentations.

[0005] This application provides a busbar bending auxiliary device, which is mounted on a busbar bending machine; it includes: a die, a flipping structure, and a spring shaft structure; an opening is provided on the end face of the die; the flipping structure is rotatably mounted on the die opening via the spring shaft structure; the flipping structures are rotatably mounted on the die in pairs, and a gap is provided between the flipping structures; When the width of the busbar being processed is less than 120mm, the flipping structure consists of symmetrically arranged flip plates on the mold opening, and a limiting surface is provided inside the mold opening. When the width of the busbar being processed is 120~160mm, the flipping structure consists of flipping blocks symmetrically arranged on the mold opening.

[0006] Preferably, when the flap rotates to its limit position, the limiting surface is parallel to the flap.

[0007] Preferably, the spring shaft structures are symmetrically arranged in pairs on the top surface of the mold, and one end of the spring shaft structure is connected to the top of the flap; the flap is rotatably arranged on the mold opening.

[0008] Preferably, the spring shaft structure includes: a fixed spring shaft, a rotating spring shaft, and a pull spring; the fixed spring shaft and the rotating spring shaft are spaced apart on one side of the mold; both ends of the pull spring shaft are connected to the fixed spring shaft and the rotating spring shaft respectively; the rotating spring shaft is connected to the flip plate.

[0009] Preferably, the spring shaft structure includes: a measuring shaft; the measuring shaft is perpendicular to the spring shaft and is disposed in the middle of the spring shaft, and is connected to the tension spring.

[0010] Preferably, the mold includes: a cover plate, a base, and a fixing plate; the cover plate is disposed on the top surface of the fixing plate; the bottom surface of the fixing plate is disposed on the base and forms a rectangular frame with an opening on one side; the two ends of the flipping block are respectively rotatably installed on one side of the cover plate and the base.

[0011] Preferably, the spring shaft structure includes: a pull spring and a spring shaft; the spring shafts are symmetrically arranged on the opening side of the cover plate; both ends of the pull spring are connected to the spring shafts respectively; and the spring shafts are connected to the flipping blocks respectively.

[0012] Preferably, the flipping block includes: a block body and a forming surface; the top surface of the block body is connected to the spring shaft, and the bottom surface is hinged to the base; the forming surface is disposed on the outer side of the block body.

[0013] Preferably, a model groove is provided on the end face of the cover plate.

[0014] Preferably, the cover plate has multiple mounting holes.

[0015] The beneficial effects that this application can produce include: 1) The busbar bending auxiliary device provided in this application is installed on a bending machine. When the jacking end of the bending machine pushes the busbar to be bent forward, the bending end enters the gap between the oppositely arranged flaps, pushing the flaps to rotate to the limiting surface. After the flaps are parallel to the limiting surface, the flaps apply extrusion pressure from both sides of the busbar to achieve uniform force on the busbar, avoid the busbar from directly contacting the sharp edge of the mold, thus avoiding stress concentration and preventing indentations from forming on the surface of the busbar when bending it, effectively protecting the intact busbar.

[0016] 2) The busbar bending auxiliary device provided in this application can be easily disassembled and installed on the bending machine as a mold. It is easy to replace and the device can be changed according to the size of the busbar being processed, thereby improving the processing efficiency of busbars of different sizes. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of the busbar bending auxiliary device in one embodiment provided in this application; Figure 2 A side view of the busbar bending auxiliary device in one embodiment provided in this application; Figure 3 for Figure 2 Schematic diagram of the AA section; Figure 4 A partial top cross-sectional view of the busbar bending auxiliary device in one embodiment provided in this application; Figure 5A perspective view of the busbar bending auxiliary device in use in one embodiment provided in this application; Figure 6 A three-dimensional structural schematic diagram of the busbar bending auxiliary device in another embodiment provided in this application; Figure 7 A side view of the busbar bending auxiliary device in another embodiment provided in this application; Figure 8 for Figure 7 Schematic diagram of the EE section; Figure 9 A partial cross-sectional view of the busbar bending auxiliary device in another embodiment provided in this application; Figure 10 A perspective view of the busbar bending auxiliary device in use in another embodiment provided in this application; Legend: Mold 1, cover plate 12, spring fixed shaft 4, spring rotating shaft 41, pull spring 5, first connecting ring 51, second connecting ring 52, side shaft 42, mounting hole 121, positioning groove 11, flip plate 2, gap 21, limiting surface 31, model groove 123, flipping block 211, mounting screw hole 114, positioning protrusion 113, base 111, fixing plate 115. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] Technical means not detailed in this application and not used to solve the technical problems of this application are all set according to common general knowledge in the field, and multiple common general knowledge setting methods can be implemented.

[0021] This device is used on existing busbar bending machines. The structure of the bending machine is the existing bending machine structure, which will not be described in detail here.

[0022] See Figures 1-10The busbar bending auxiliary device provided in this application includes: a mold 1, a cover plate 12, a spring fixed shaft 4, a spring rotating shaft 41, a tension spring 5, and a flap 2. The main body of the mold 1 is a rectangular column, with a cover plate 12 on the top. The spring fixed shaft 4 and the spring rotating shaft 41 are symmetrically arranged on the top surface of the cover plate 12. The spring fixed shaft 4 and the spring rotating shaft 41 are arranged in pairs at intervals on one side of the cover plate 12. One side of the spring fixed shaft 4 is located at the rear end of the mold 1, and the spring rotating shaft 41 is located near the front opening end face of the mold 1 and is connected to the flap 2, which is rotated and covered on the mold 1. A gap 21 is provided between the flaps 2 on the mold 1. A limiting surface 31 is provided inside the open end of the side wall of the mold 1. The angle formed by the limiting surface 31 is set according to the bending angle of the busbar. After the flap 2 rotates to the limit position, the flap 2 is parallel to the limiting surface 31, thereby avoiding stress concentration on the surface of the busbar during the bending process.

[0023] The fixed spring shaft 4 and the rotating spring shaft 41 are connected by a tension spring 5. First, the mold 1 is fixedly installed on the bending machine's mold 1 position and secured via the positioning groove 11 at the rear end of the mold 1. The flap 2 installed at the front end of the mold 1 is positioned directly opposite the feed end of the bending machine. During feeding, the busbar is placed vertically, and the feed end of the bending machine is positioned directly opposite the gap 21, pushing one side wall of the busbar forward and causing the flap 2 to rotate and form a depression. The mold 1 remains fixed and will not shift relative to the busbar. Under the push of the feed end, the flap 2 presses both sides of the busbar, thus achieving bending. During feeding, both ends of the busbar are evenly stressed, achieving uniform bending. After bending, due to the increased compression area, indentations are effectively avoided on the surface of the busbar, effectively protecting the busbar while ensuring normal bending.

[0024] In one specific embodiment, it includes: a side shaft 42; the side shaft 42 is horizontally inserted onto the spring shaft 41, one end of the side shaft 42 is connected to one end of the pull spring 5; the other end of the pull spring 5 is connected to the top of the spring fixed shaft 4. The connection end of the side shaft 42 and the pull spring 5 is positioned directly opposite the spring fixed shaft 4.

[0025] Since the side shaft 42 extends out of the spring shaft 41, the spring shaft 41 is misaligned with the spring fixed shaft 4. When feeding, after the busbar pushes the flap 2, the rotation of the flap 2 is restricted by the pulling spring 5.

[0026] In one specific embodiment, the pull spring 5 includes a first connecting ring 51 and a second connecting ring 52 disposed at both ends of the spring body; the first connecting ring 51 is sleeved on the fixed shaft 4 of the spring; and the second connecting ring 52 is sleeved on the side shaft 42.

[0027] In one specific embodiment, the spring shaft 41 is vertically disposed on the cover plate 12 and connected to the inner side wall of the flap 2, so as to realize the rotation of the flap 2 around the spring shaft 41.

[0028] In one specific embodiment, a plurality of mounting holes 121 are provided on the cover plate 12 so as to install the device on the mold mounting position of the bending machine.

[0029] In one specific embodiment, the first set of mounting holes on the cover plate 12 includes: symmetrically arranged mounting holes 121, with a lateral spacing of 30mm between the mounting holes 121 in the group; the second set of mounting holes is spaced apart from the first set of mounting holes, with a lateral spacing of 40mm between the mounting holes 121 in the second set of mounting holes. In one specific embodiment, positioning grooves 11 are symmetrically provided on one side wall of the mold 1, and the positioning grooves 11 are used to define the installation position of the mold 1 on the bending machine.

[0030] In one specific embodiment, the mold 1 has a width of 80mm and a height of 130mm. This mold 1 is used to bend busbars with a width of 120mm or less. During bending, the mold 1 compresses a 40mm wide area on both sides of the bending area of ​​the busbar, effectively increasing the contact area and preventing indentations from forming on the surface of the busbar.

[0031] See Figures 7-10 In one specific embodiment, the mold 1 includes: a base 111 and a fixing plate 115; one side of the base 111 is connected to the bottom of the fixing plate 115, and the top of the fixing plate 115 is connected to one side of the cover plate 12; spring shafts 41 are symmetrically arranged on the other side of the cover plate 12; a side shaft 42 is provided through the middle of the spring shaft 41; both ends of the side shaft 42 extend out of the spring shaft 41 respectively, and one end of the side shaft 42 is connected to the pull spring 5 through a first connecting ring 51; one end of the side shaft 42 on the spring shaft 41 on the other side of the cover plate 12 is connected to the pull spring 5 through a second connecting ring 52.

[0032] The spring shaft 41 passes through the cover plate 12 and is connected to the flip block 211 located below the cover plate 12. The flip block 211 rotates with the spring shaft 41. The flip blocks 211 are symmetrically arranged and connected to the symmetrically arranged spring shafts 41 respectively; the bottom of the flip block 211 is hinged to one end of the base 111. A gap 21 is provided between adjacent surfaces of the flip blocks 211. The mold 1 with the flip block 211 structure can increase the force-bearing area of ​​the busbar while improving the strength of the applied reaction force, making it suitable for handling larger busbars.

[0033] In one specific embodiment, the flipping block 211 includes: a block body and a forming surface; the forming surface is disposed on one side of the block body, the top of the block body is connected to the spring shaft 41, and the bottom is hinged to the base 111. The coverage area of ​​the forming surface is adjusted according to the width of the machined busbar, for example, the forming surface covers the base 111. The spacing of the spring shafts 41 is 86mm.

[0034] In one specific embodiment, a model groove 123 is provided on one end face of the cover plate 12. The model groove 123 is flush with the plane of the extreme rotation position of the flipping block 211. When bending a large-sized busbar, when the flipping block 211 rotates to the forming position, at the point where the busbar contacts the opposite side wall of the model groove 123, before the busbar is bent at least to this position, because the width of the model groove 123 is small and the contact area with the busbar is small, it is not the main stress support point of the busbar, and therefore no obvious sub-constancy will form on the surface of the busbar. This allows the device to be used for bending wider busbars. The bottom width of the model groove 123 is smaller than the spacing between the forming surfaces of the flipping block 211 when it is rotated to the extreme position.

[0035] In one specific embodiment, the pull spring 5 is arranged parallel to the model groove 123.

[0036] In one specific embodiment, it includes: a plurality of mounting screw holes 114; the mounting screw holes 114 are opened through the cover plate 12 and the fixing plate 115 so as to fix the cover plate 12 and the fixing plate 115 by positioning screws, and to install the device on the bending machine.

[0037] In one specific embodiment, a positioning protrusion 113 is disposed on the outer wall of the fixing plate 115. This device can adjust the positioning and mounting structure according to different bending machine mold installation requirements.

[0038] In one specific embodiment, when the flipping block 211 structure is set, the mold 1 has a width of 136mm and a height of 173mm, which is suitable for bending busbars with a bending width of 120~160mm, and the width of the stress area of ​​the bent busbar is 68mm.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A busbar bending auxiliary device, wherein the busbar bending auxiliary device is mounted on a busbar bending machine; characterized in that, include: Mold (1), flipping structure, spring shaft structure; An opening is provided on the end face of the mold (1); The flipping structure is rotatably mounted on the opening of the mold (1) via a spring shaft structure; the flipping structures are rotatably mounted on the mold (1) in pairs, with a gap (21) between them. When the width of the busbar being processed is less than 120mm; the flipping structure is a flip plate (2) symmetrically set on the opening of the mold (1); a limiting surface (31) is set inside the opening of the mold (1); When the width of the busbar being processed is 120~160mm, the flipping structure is a flipping block (211) symmetrically arranged on the opening of the mold (1).

2. The busbar bending auxiliary device according to claim 1, characterized in that, When the flap (2) rotates to the limit position, the limiting surface (31) is parallel to the flap (2).

3. The busbar bending auxiliary device according to claim 1, characterized in that, The spring shaft structures are symmetrically arranged in pairs on the top surface of the mold (1), and one end of the spring shaft structure is connected to the top of the flip plate (2); the flip plate (2) is rotatably arranged on the opening of the mold (1).

4. The busbar bending auxiliary device according to claim 3, characterized in that, The spring shaft structure includes: spring fixed shaft (4), spring rotating shaft (41), and pull spring (5); the spring fixed shaft (4) and spring rotating shaft (41) are spaced apart on one side of the mold (1); the two ends of the pull spring (5) are connected to the spring fixed shaft (4) and spring rotating shaft (41) respectively; the spring rotating shaft (41) is connected to the flip plate (2).

5. The busbar bending auxiliary device according to claim 4, characterized in that, The spring shaft structure includes: a measuring shaft (42); the measuring shaft (42) is perpendicular to the spring shaft (41) and is located in the middle of the spring shaft (41), and is connected to the pulling spring (5).

6. The busbar bending auxiliary device according to claim 1, characterized in that, The mold (1) includes: cover plate (12), base (111), and fixing plate (115); cover plate (12) is set on the top surface of fixing plate (115); the bottom surface of fixing plate (115) is set on base (111) and surrounds a rectangular frame with one side open; the two ends of the flipping block (211) are respectively rotatably installed on one side of cover plate (12) and base (111).

7. The busbar bending auxiliary device according to claim 6, characterized in that, The spring shaft structure includes: a pull spring (5) and a spring shaft (41); the spring shaft (41) is symmetrically arranged on the opening side of the cover plate (12); the two ends of the pull spring (5) are respectively connected to the spring shaft (41); the spring shaft (41) is respectively connected to the flipping block (211).

8. The busbar bending auxiliary device according to claim 7, characterized in that, The flip block (211) includes: a block body and a forming surface; the top surface of the block body is connected to the spring shaft (41), and the bottom surface is hinged to the base (111); the forming surface is set on the outer side of the block body.

9. The busbar bending auxiliary device according to claim 7, characterized in that, A model groove (123) is provided on the end face of the cover plate (12).

10. The busbar bending auxiliary device according to claim 7, characterized in that, Multiple mounting holes (121) are provided on the cover plate (12).

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