Twisted flower forming device based on copper-aluminum bar

By designing a copper-aluminum strip twisting forming device, using bearings and angle encoders to monitor the rotation angle, and combining it with a PLC module to control the drive components, the problem of low precision in large copper-aluminum strip twisting forming was solved, achieving automated and high-precision processing.

CN224673568UActive Publication Date: 2026-08-25SICHUAN MAIWEI TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522044471.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2026-08-25
Estimated Expiration
2035-09-23

AI Technical Summary

Technical Problem

In existing technologies, large copper and aluminum strip twisting forming cannot ensure processing accuracy and requires manual operation after heating, which cannot guarantee processing quality.

Method used

A twisting forming device based on copper-aluminum busbars was designed, including a rotating shaft, bearings, a positioning base, an angle encoder, and a PLC module. The bearings reduce friction, the angle encoder monitors the rotation angle in real time, and the PLC module controls the drive components to ensure that the copper-aluminum busbars are stable in position and accurate in angle during the twisting process.

Benefits of technology

It improves the processing accuracy of copper and aluminum busbar twisting, realizes automated control, adapts to the processing needs of copper and aluminum busbars of different specifications, and reduces manual intervention and processing deviation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a twist flower forming device based on copper aluminium row, including frame, rotation axis and drive assembly, is provided with bearing base and positioning base on the frame, bearing base is equipped with the shaft hole, is equipped with the bearing in the shaft hole, and the rotation axis sleeve is equipped in the bearing, one end of rotation axis is connected with the output of drive assembly, and drive assembly drives rotation axis rotation, the other end of rotation axis is provided with the connecting piece, the connecting piece is equipped with first connecting hole, and positioning base is equipped with second connecting hole, and first connecting hole and second connecting hole are correspondingly set up, and the both ends of connecting copper aluminium row, rotation axis is provided with angle encoder, and the rotation angle of rotation axis is monitored, angle encoder and drive assembly all connect PLC module, and PLC module controls drive assembly according to the rotation angle of angle encoder monitoring, and the working strategy of drive assembly is adjusted to improve the processing accuracy of twist flower.
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Description

Technical Field

[0001] This utility model relates to a copper-aluminum busbar processing device, specifically to a twisting forming device based on copper-aluminum busbars. Background Technology

[0002] In power systems, the twisted structure of copper-aluminum busbars increases the heat dissipation area and reduces temperature rise during high-current operation. Copper-aluminum busbars are made of copper-aluminum alloy and possess a certain degree of toughness. However, currently, the twisting of small copper-aluminum busbars can be achieved using CNC spring machines. Large copper-aluminum busbars, due to their thickness, can only be twisted manually after heating them to 500–800°C, which makes it difficult to ensure processing precision. Utility Model Content

[0003] The purpose of this invention is to provide a twisting forming device based on copper-aluminum busbars, and the technical problem to be solved is how to improve the processing accuracy of twisting.

[0004] This utility model is achieved through the following technical solution:

[0005] The twisting forming device based on copper-aluminum busbars includes a frame, a rotating shaft and a drive assembly. The frame is provided with a bearing base and a positioning base. The bearing base is provided with a shaft hole, and a bearing is sleeved in the shaft hole. The rotating shaft is sleeved in the bearing.

[0006] One end of the aforementioned rotating shaft is connected to the output end of the drive assembly, which is used to drive the rotating shaft to rotate.

[0007] The other end of the aforementioned rotating shaft is provided with a connector; the connector is provided with a first connecting hole, and the positioning base is provided with a second connecting hole, the first connecting hole and the second connecting hole being provided correspondingly; the first connecting hole and the second connecting hole are respectively used to connect the two ends of the copper-aluminum busbar;

[0008] An angle encoder is provided at the end of the aforementioned rotating shaft, which is used to monitor the rotation angle of the rotating shaft;

[0009] Both the angle encoder and the drive component are connected to a PLC module. The PLC module is used to control the drive component based on the rotation angle detected by the angle encoder.

[0010] The rotating shaft is housed within a bearing in the bearing base. The bearing reduces friction during rotation, ensuring smoother rotation and minimizing rotational deviations caused by uneven friction. The drive assembly provides power to the rotating shaft, and the copper-aluminum busbars are positioned using connectors and a positioning base. This ensures stability at both ends of the busbars during the twisting process, reducing offset or wobbling. Only when both ends of the busbars are properly secured can the twisting process be performed according to predetermined requirements under the drive of the rotating shaft. An angle encoder at the end of the rotating shaft monitors its rotation angle in real time. During the twisting process, the rotation angle directly determines the degree and shape of the twisting on the copper-aluminum busbars. The angle encoder measures the rotation angle of the shaft at every moment and feeds this data back to the PLC module in real time. This allows the drive assembly to adjust its operating strategy, ensuring the twisting angle meets design requirements and improving the twisting accuracy.

[0011] Furthermore, the frame is also equipped with a sliding rail, the length direction of which is the same as the length direction of the connecting piece;

[0012] The aforementioned positioning base is set on a sliding track, and the positioning base slides on the sliding track.

[0013] The length direction of the sliding track is the same as that of the connector, allowing the positioning base to move along the length direction of the copper-aluminum busbar. Since the lengths of copper-aluminum busbars of different specifications vary, the positioning base is set on the sliding track and can slide along it. The distance between the positioning base and the connector can be flexibly adjusted according to the actual length of the copper-aluminum busbar to accommodate copper-aluminum busbars of different lengths.

[0014] Furthermore, the aforementioned positioning base is equipped with a locking screw;

[0015] When the above-mentioned positioning base is locked, the locking screw abuts against the frame.

[0016] The positioning base is locked by tightening the locking screw to prevent it from sliding during twisting, thus improving its stability.

[0017] Furthermore, anti-detachment blocks are provided at both ends of the aforementioned sliding track. When the positioning base slides to both ends of the sliding track, the positioning base abuts against the anti-detachment blocks.

[0018] The aforementioned anti-detachment blocks limit the sliding range of the positioning base, preventing excessive movement that could damage the positioning base.

[0019] Furthermore, the aforementioned drive assembly includes a drive motor, a main drive sprocket, a driven drive sprocket, and a drive chain, wherein the main drive sprocket and the driven drive sprocket are meshed and connected via the drive chain;

[0020] The aforementioned main drive sprocket is connected to the output shaft of the drive motor, and the drive sprocket is sleeved on the rotating shaft;

[0021] The aforementioned drive motor drives the main drive sprocket to rotate via its output shaft. The main drive sprocket drives the driven sprocket to rotate via a drive chain, and the driven sprocket drives the rotating shaft to rotate.

[0022] Furthermore, the aforementioned drive assembly also includes a tension sprocket, which is mounted on the frame and engages with the outer circumferential surface of the drive chain;

[0023] The aforementioned main drive sprocket, driven drive sprocket, and tension sprocket form a triangular structure.

[0024] The tension sprocket increases the tension of the transmission chain, making the transmission chain taut and reducing the shaking and noise of the drive components and rotating shaft during rotation.

[0025] Furthermore, the aforementioned connector is provided with a first snap-fit ​​groove, which communicates with the first connecting hole;

[0026] The first snap-fit ​​slot is detachably provided with a first snap-fit ​​block, the first snap-fit ​​block is provided with a first snap-fit ​​hole, and the orthographic projection of the first snap-fit ​​hole is located within the orthographic projection of the first connecting hole;

[0027] When the aforementioned connector is used to connect the copper-aluminum busbar, the copper-aluminum busbar passes through the first snap-fit ​​hole and extends toward the first connection hole.

[0028] Furthermore, the aforementioned positioning base is provided with a second snap-fit ​​groove, which is connected to the second connecting hole;

[0029] The second snap-fit ​​slot is detachably provided with a second snap-fit ​​block, and the second snap-fit ​​block is provided with a second snap-fit ​​hole. The orthographic projection of the second snap-fit ​​hole is located within the orthographic projection of the second connecting hole.

[0030] When the aforementioned positioning base is connected to the copper-aluminum busbar, the copper-aluminum busbar passes through the second snap-fit ​​hole and extends toward the second connection hole.

[0031] The first and second snap-fit ​​blocks mentioned above are detachable, which not only solves the problem of the copper and aluminum busbars being difficult to remove after twisting, but also allows for the replacement of snap-fit ​​blocks with different snap-fit ​​hole diameters to expand the applicability of copper and aluminum busbars. They can handle both small and large copper and aluminum busbars.

[0032] Furthermore, the twisting forming device also includes a touch screen, which is connected to a PLC module. The touch screen serves as a human-machine interface, allowing operators to easily input processing parameters, monitor the processing process, and adjust processing strategies in a timely manner to adapt to the processing requirements of different copper and aluminum busbars.

[0033] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0034] The rotating shaft is housed within a bearing in the bearing base. The bearing reduces friction during rotation, ensuring smoother rotation and minimizing rotational deviations caused by uneven friction. The drive assembly provides power to the rotating shaft, and the copper-aluminum busbars are positioned using connectors and a positioning base. This ensures stability at both ends of the busbars during the twisting process, reducing offset or wobbling. Only when both ends of the busbars are properly secured can the twisting process be performed according to predetermined requirements under the drive of the rotating shaft. An angle encoder at the end of the rotating shaft monitors its rotation angle in real time. During the twisting process, the rotation angle directly determines the degree and shape of the twisting on the copper-aluminum busbars. The angle encoder measures the rotation angle of the shaft at every moment and feeds this data back to the PLC module in real time. This allows the drive assembly to adjust its operating strategy, ensuring the twisting angle meets design requirements and improving the twisting accuracy. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0036] Figure 1 A three-dimensional structural diagram of the twisted flower forming device;

[0037] Figure 2 This is a left view of the twisting forming device;

[0038] Figure 3 A schematic diagram of the structure after the drive assembly is connected to the rotating shaft;

[0039] Figure 4 A simplified cross-sectional view of the rotating shaft and positioning base after assembling the copper-aluminum busbar.

[0040] The attached diagram shows the markings and corresponding component names:

[0041] 1. Frame; 2. Bearing base; 21. Bearing; 3. Positioning base; 31. Second connecting hole; 32. Second locking block; 4. Rotating shaft; 5. Connecting piece; 51. First connecting hole; 52. First locking block; 6. Sliding rail; 7. Anti-detachment block; 81. Drive motor; 82. Main drive sprocket; 83. Driven drive sprocket; 84. Drive chain; 85. Tension sprocket; 9. Copper-aluminum busbar. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0043] First embodiment:

[0044] The twisting forming device based on copper-aluminum strip 9 includes a frame 1, a rotating shaft 4 and a drive assembly. The frame 1 is provided with a bearing base 2 and a positioning base 3. The bearing base 2 is provided with a shaft hole, and a bearing 21 is sleeved in the shaft hole. The rotating shaft 4 is sleeved in the bearing 21.

[0045] One end of the aforementioned rotating shaft 4 is connected to the output end of the drive assembly, which is used to drive the rotating shaft 4 to rotate.

[0046] The other end of the aforementioned rotating shaft 4 is provided with a connector 5; the connector 5 is provided with a first connecting hole 51, and the positioning base 3 is provided with a second connecting hole 31, the first connecting hole 51 and the second connecting hole 31 are provided correspondingly; the first connecting hole 51 and the second connecting hole 31 are respectively used to connect the two ends of the copper-aluminum busbar 9.

[0047] An angle encoder is provided at the end of the aforementioned rotating shaft 4. The angle encoder can be a 2000P encoder. The angle encoder is used to monitor the rotation angle of the rotating shaft 4.

[0048] Both the angle encoder and the drive assembly are connected to a PLC module. The PLC module, a programmable logic controller, is the control core of the entire device and can be an S7-1200, S7-1500, FX3U, NX7, etc. The PLC module receives signals from the angle encoder and controls the operation of the drive assembly according to preset program instructions to achieve automated processing. Preset program instructions could include: stopping the drive assembly when the rotation angle is 90 degrees, stopping the drive assembly when the rotation angle is 180 degrees, stopping the drive assembly when the rotation angle is 270 degrees, etc. The angle encoder can also calculate and convert motor pulses into angles to obtain the motor's rotation angle; this step can be programmed and implemented within the PLC module.

[0049] The rotating shaft 4 is fitted inside the bearing 21 of the bearing base 2. The bearing 21 reduces friction during rotation, making the rotating shaft 4 rotate more smoothly and reducing rotational deviation caused by uneven friction. The drive assembly provides power to the rotating shaft 4 to rotate, and the position of the copper-aluminum strip 9 is fixed by the connector 5 and the positioning base 3 to ensure the stability of the two ends of the copper-aluminum strip 9 during the twisting process, reducing the offset or wobbling of the copper-aluminum strip 9 during twisting. Only when the two ends of the copper-aluminum strip 9 are well fixed can the twisting process be carried out according to the predetermined requirements under the drive of the rotating shaft 4. The angle encoder installed at the end of the rotating shaft 4 can monitor the rotation angle of the rotating shaft 4 in real time. During the twisting process, the rotation angle directly determines the degree and shape of the twisting of the copper-aluminum strip 9. The angle encoder measures the rotation angle of the rotating shaft 4 at every moment and feeds this data back to the PLC module in real time to adjust the working strategy of the drive assembly, thereby ensuring that the twisting angle of the copper-aluminum strip 9 meets the design requirements and improving the twisting processing accuracy.

[0050] Second embodiment:

[0051] Based on the first embodiment, a sliding rail 6 is also provided on the frame 1. The sliding rail 6 can be an HG35 slide rail and a matching HG35 slider. The HG35 slider is set on the positioning base 3. The length direction of the sliding rail 6 is the same as the length direction of the connector 5. The positioning base 3 slides on the sliding rail 6.

[0052] The length direction of the sliding track 6 is the same as that of the connector 5, so that the positioning base 3 can move along the length direction of the copper-aluminum busbar 9. Since the lengths of copper-aluminum busbars 9 of different specifications are different, the positioning base 3 is set on the sliding track 6 and can slide along it. The distance between the positioning base 3 and the connector 5 can be flexibly adjusted according to the actual length of the copper-aluminum busbar 9 to adapt to copper-aluminum busbars 9 of different lengths.

[0053] In a specific embodiment, the positioning base 3 is provided with a locking screw;

[0054] When the positioning base 3 is locked, the locking screw abuts against the frame 1; when the positioning base 3 is slid, the locking screw is turned so that the locking screw moves upward away from the frame 1.

[0055] The positioning base 3 is locked by the locking screw to prevent it from sliding during twisting and to improve its stability.

[0056] Third embodiment:

[0057] Based on the second embodiment, anti-detachment blocks 7 are provided at both ends of the sliding track 6. When the positioning base 3 slides to both ends of the sliding track 6, the positioning base 3 abuts against the anti-detachment blocks 7.

[0058] The anti-detachment block 7 restricts the sliding range of the positioning base 3, preventing excessive movement that could damage the positioning base 3.

[0059] Fourth embodiment:

[0060] Based on any of the above embodiments, the drive assembly includes a drive motor 81, a main drive sprocket 82, a driven sprocket 83, and a drive chain 84. The drive motor 81 may be an F157, FA / FF37, FA / FF47, FA / FF67, FA / FF77, etc.

[0061] The aforementioned main drive sprocket 82 and driven drive sprocket 83 mesh with the inner circumferential surface of the drive chain 84;

[0062] The aforementioned main drive sprocket 82 is connected to the output shaft of the drive motor 81, and the drive sprocket 83 is sleeved on the rotating shaft 4;

[0063] The aforementioned drive motor 81 drives the main drive sprocket 82 to rotate via its output shaft. The main drive sprocket 82 drives the driven sprocket 83 to rotate via the drive chain 84. The driven sprocket 83 then drives the rotating shaft 4 to rotate.

[0064] In a specific embodiment, the drive assembly further includes a tension sprocket 85, which is mounted on the frame 1 and engages with the outer circumferential surface of the transmission chain 84.

[0065] The main drive sprocket 82, the driven drive sprocket 83, and the tension sprocket 85 form a triangular structure to maintain the stability of the drive chain 84.

[0066] The tension of the transmission chain 84 is increased by the tension sprocket 85, which tightens the transmission chain 84 and reduces the shaking and noise of the drive assembly and rotating shaft 4 during rotation.

[0067] Fifth embodiment:

[0068] Based on any of the above embodiments, the connector 5 is provided with a first snap-fit ​​groove, and the first snap-fit ​​groove is connected to the first connecting hole 51;

[0069] The first card slot is detachably provided with a first card block 52, and the first card block 52 is provided with a first card hole. The orthographic projection of the first card hole is located within the orthographic projection of the first connecting hole 51.

[0070] When the aforementioned connector 5 connects to the copper-aluminum busbar 9, the copper-aluminum busbar 9 passes through the first snap-fit ​​hole and extends toward the first connection hole 51.

[0071] In a specific embodiment, the positioning base 3 is provided with a second snap-fit ​​groove, which is connected to the second connecting hole 31;

[0072] The second card slot is detachably provided with a second card block 32, and the second card block 32 is provided with a second card hole. The orthographic projection of the second card hole is located within the orthographic projection of the second connection hole 31.

[0073] When the aforementioned positioning base 3 is connected to the copper-aluminum busbar 9, the copper-aluminum busbar 9 passes through the second snap-fit ​​hole and extends towards the second connection hole 31. The outer surfaces of the aforementioned first snap-fit ​​block 52 and second snap-fit ​​block 32 are provided with a rubber layer, which is used to reduce rigid wear.

[0074] In actual use, firstly, the two ends of the copper-aluminum strip 9 are respectively snapped into the first snap-fit ​​hole and the second snap-fit ​​hole. Then, the first snap-fit ​​block 52 and the second snap-fit ​​block 32 are respectively snapped into the first snap-fit ​​groove and the second snap-fit ​​groove. Then, the locking screw is turned to move the locking screw downward to abut against the frame 1, thereby positioning the copper-aluminum strip 9. After that, the drive motor 81 is started according to the preset command to realize the twisting operation.

[0075] The first snap-fit ​​block 52 and the second snap-fit ​​block 32 mentioned above are detachable, which not only solves the problem of the copper-aluminum busbar 9 being difficult to remove after twisting, but also allows for the replacement of snap-fit ​​blocks with different snap-fit ​​hole diameters to expand the applicability of the copper-aluminum busbar 9. It can handle both small and large copper-aluminum busbars 9.

[0076] In addition, the twisting forming device also includes a touch screen, which can be an ABB Bailey CP635-WEB, TP177BPN / DP, etc.; the touch screen is connected to the PLC module. Using the touch screen as a human-machine interface, operators can easily input processing parameters, monitor the processing process, and adjust processing strategies in a timely manner to adapt to the processing requirements of different copper and aluminum busbars.

[0077] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A twisting forming device based on copper-aluminum busbars (9), characterized in that, The device includes a frame (1), a rotating shaft (4), and a drive assembly. The frame (1) is provided with a bearing base (2) and a positioning base (3). The bearing base (2) is provided with a shaft hole, and a bearing (21) is fitted inside the shaft hole. The rotating shaft (4) is fitted inside the bearing (21). One end of the rotating shaft (4) is connected to the output end of the drive assembly, and the drive assembly is used to drive the rotating shaft (4) to rotate. The other end of the rotating shaft (4) is provided with a connector (5); the connector (5) is provided with a first connecting hole (51), and the positioning base (3) is provided with a second connecting hole (31), the first connecting hole (51) and the second connecting hole (31) are provided correspondingly; the first connecting hole (51) and the second connecting hole (31) are respectively used to connect the two ends of the copper-aluminum busbar (9); An angle encoder is provided at the end of the rotating shaft (4) for monitoring the rotation angle of the rotating shaft (4); Both the angle encoder and the drive component are connected to a PLC module, which controls the drive component based on the rotation angle detected by the angle encoder.

2. The twisting forming device according to claim 1, characterized in that, The frame (1) is also provided with a sliding rail (6), the length direction of the sliding rail (6) is the same as the length direction of the connector (5); The positioning base (3) is set on the sliding rail (6) and slides on the sliding rail (6).

3. The twisting forming device according to claim 2, characterized in that, The positioning base (3) is provided with a locking screw; When the positioning base (3) is locked, the locking screw abuts against the frame (1).

4. The twisting forming device according to claim 2, characterized in that, The sliding track (6) is provided with anti-detachment blocks (7) at both ends. When the positioning base (3) slides to both ends of the sliding track (6), the positioning base (3) abuts against the anti-detachment blocks (7).

5. The twisting forming device according to claim 1, characterized in that, The drive assembly includes a drive motor (81), a main drive sprocket (82), a driven sprocket (83), and a drive chain (84), wherein the main drive sprocket (82) and the driven sprocket (83) are meshed and connected by the drive chain (84); The main drive sprocket (82) is connected to the output shaft of the drive motor (81), and the drive sprocket (83) is sleeved on the rotating shaft (4); The drive motor (81) drives the main drive sprocket (82) to rotate through the output shaft. The main drive sprocket (82) drives the secondary drive sprocket (83) to rotate through the drive chain (84). The secondary drive sprocket (83) drives the rotating shaft (4) to rotate.

6. The twisting forming device according to claim 5, characterized in that, The drive assembly also includes a tension sprocket (85), which is mounted on the frame (1) and engages with the outer circumferential surface of the drive chain (84); The main drive sprocket (82), the driven sprocket (83), and the tension sprocket (85) form a triangular structure.

7. The twisting forming device according to claim 1, characterized in that, The connector (5) is provided with a first snap-fit ​​groove, and the first snap-fit ​​groove is connected to the first connecting hole (51); The first card slot is detachably provided with a first card block (52), the first card block (52) is provided with a first card hole, and the orthographic projection of the first card hole is located within the orthographic projection of the first connecting hole (51); When the connector (5) connects the copper-aluminum busbar (9), the copper-aluminum busbar (9) passes through the first snap-fit ​​hole and extends toward the first connection hole (51).

8. The twisting forming device according to claim 1, characterized in that, The positioning base (3) is provided with a second snap-fit ​​groove, and the second snap-fit ​​groove is connected to the second connecting hole (31); The second snap-fit ​​slot is detachably provided with a second snap-fit ​​block (32), the second snap-fit ​​block (32) is provided with a second snap-fit ​​hole, and the orthographic projection of the second snap-fit ​​hole is located within the orthographic projection of the second connecting hole (31); When the positioning base (3) is connected to the copper-aluminum busbar (9), the copper-aluminum busbar (9) passes through the second snap-fit ​​hole and extends toward the second connection hole (31).

9. The twisting forming device according to claim 1, characterized in that, The twisting forming device also includes a touch screen, which is connected to a PLC module.