A combined core bending device and a combined core bending method

Abstract

The present invention provides a pole assembly core bending device and a core bending method, which relate to the field of battery processing technology. The pole assembly core bending device includes a pole assembly flipping mechanism and a connecting piece bending mechanism. The pole assembly flipping mechanism is used to flip two pole assemblies to bring the two pole assemblies together. The connecting piece bending mechanism includes a pressing plate and two bending plates. The pressing plate is located between the two pole assemblies and is used to press the connecting piece. The two bending plates are located on the side of the connecting piece facing away from the pressing plate. The two bending plates correspond to the corresponding pole assemblies respectively. The bending plates are used to rotate along the flipping direction of the corresponding pole assemblies to cooperate with the pressing plates. When the two pole assemblies are flipped, the connecting piece is bent on both sides of the connecting piece on the pressing plates after the two pole assemblies are brought together. The connecting piece is actively bent by the bending plates, and the pole assembly core operation is completed in coordination with the flipping and closing of the pole assemblies. This ensures that the pole ears welded to the connecting piece will not break or tear, thereby improving the yield rate of the core.

Description

Technical Field

[0001] The present invention relates to the technical field of battery processing, and in particular to a pole assembly core bending device and a pole assembly core bending method. Background Art

[0002] In existing battery manufacturing processes, the tabs of the A and B electrode groups are typically ultrasonically welded to a connecting piece placed between them. The connecting piece is then laser welded to the positive and negative electrodes on the cover. The connecting piece is then bent and the A and B electrode groups are flipped over and combined into a single cell. After the A and B electrodes are combined into a single cell, the cover serves as the top of the cell, with the positive and negative electrodes on it serving as the cell's two poles.

[0003] Traditional connecting tabs are thin and flexible, allowing them to bend as the A and B electrode groups are flipped during cell assembly. However, the thinness of existing battery connecting tabs limits the current flowing through them, limiting the battery's capacity. Some large-capacity battery cells now have thicker, harder tabs inside that are difficult to bend, often resulting in slow bending and impacting production efficiency. Furthermore, if the A and B electrode groups are flipped directly, the stiffness of the connecting tabs may result in the tabs not bending with the flipping of the A and B electrode groups, but bending the tabs welded to the tabs. This can lead to a break between the tabs and the connecting tabs, or even tearing of the tabs, damaging the internal cell structure and causing substandard battery cells. Summary of the Invention

[0004] In order to overcome the deficiencies in the prior art, the present application provides a combined core bending device and a combined core bending method.

[0005] The present application provides a pole combination core bending device, which is used to combine and bend two pole groups connected by connecting plates, including a pole group flipping mechanism and a connecting plate bending mechanism. The pole group flipping mechanism is used to flip the two pole groups so that the two pole groups are brought together. The connecting plate bending mechanism includes a pressure plate and two bending plates. The pressure plate is located between the two pole groups and is used to press the connecting plate. The two bending plates are located on the side of the connecting plate away from the pressure plate. The two bending plates correspond to the corresponding pole groups respectively. The bending plates are used to rotate along the flipping direction of the corresponding pole group to cooperate with the pressure plate, bend the connecting plate when the two pole groups are flipped, and bend the two sides of the connecting plate on the pressure plate after the two pole groups are brought together.

[0006] In a possible embodiment, the connecting piece bending mechanism also includes an insertion drive and a clamping drive, the pressure plate is arranged at the driving end of the clamping drive, and the clamping drive is arranged at the driving end of the insertion drive, the insertion drive is used to drive the pressure plate to move above the connecting piece, and the clamping drive is used to drive the pressure plate to press on the connecting piece.

[0007] In a possible embodiment, the connecting plate bending mechanism further includes a rotation drive member and a transmission assembly, the transmission assembly connects the corresponding bending plate and the rotation drive member, and the rotation drive member drives the corresponding bending plate to rotate through the transmission assembly.

[0008] In a possible embodiment, the transmission assembly includes a driving wheel, a driven wheel and a synchronous belt, the driving wheel and the driven wheel are respectively rotatably arranged on a rotating frame, the synchronous belt is sleeved on the driving wheel and the driven wheel, the driving end of the rotating driving member is connected to the driving wheel, and the bending plate is connected to the driven wheel.

[0009] In a possible embodiment, the connecting piece bending mechanism further includes an insert driving member, the rotating frame is mounted on a driving end of the insert driving member, and the insert driving member is used to drive the bending plate to move below the connecting piece.

[0010] In one possible embodiment, the pole group flipping mechanism includes two flipping driving members and two flipping plates, the two flipping plates are used to respectively carry the corresponding pole groups, and the flipping driving members are used to drive the corresponding flipping plates to rotate so that the two pole groups carried on the two flipping plates are closed.

[0011] In a possible implementation manner, the pole combination core bending device further includes a spacing adjustment mechanism, and the spacing adjustment mechanism is used to adjust the spacing between the two flip plates.

[0012] In a possible embodiment, the spacing adjustment mechanism includes an adjustment drive and two adjustment plates, the two adjustment plates are arranged opposite to each other, the two flip plates are respectively arranged on the corresponding adjustment plates, the adjustment drive is respectively connected to the two adjustment plates, and the adjustment drive is used to drive the two adjustment plates to move relative to each other to adjust the spacing between the two flip plates.

[0013] In a possible implementation, the pole group core bending device further includes a pole group transplanting mechanism, and the pole group transplanting mechanism is used to transfer the two pole groups after bending.

[0014] The present application also provides a core closing and bending method for closing and bending two pole groups connected by a connecting piece, comprising the following steps:

[0015] Pressing the connecting piece tightly by a pressing plate;

[0016] The two pole groups are flipped by the pole group flipping mechanism, and the connecting piece is bent by rotating the bending plate to close the two pole groups;

[0017] Continue to rotate the bending plate to bend both sides of the connecting piece and press them onto the pressing plate.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The pole combination core bending device provided in the present application actively bends the connecting piece by rotating the bending plate through the cooperation of the bending plate and the pressure plate, and cooperates with the pole group flipping mechanism to flip and close the two pole groups to complete the operation of the pole combination core, thereby being able to bend thicker and harder connecting pieces, ensuring that the pole ears welded to the connecting pieces connecting the pole groups will not break or tear, thereby improving the yield rate of the core combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of a pole combination core bending device provided in an embodiment of the present application is shown;

[0022] Figure 2 Shown Figure 1 A schematic structural diagram of a pole group turning mechanism of a pole group core bending device is shown;

[0023] Figure 3 Shown Figure 2 A schematic structural diagram of the pole group flipping mechanism from another perspective;

[0024] Figure 4 Shown Figure 2 The schematic diagram of the structure of the pole group flipping mechanism after the core is closed and bent;

[0025] Figure 5 Shown Figure 4 A schematic structural diagram of the pole group flipping mechanism from another perspective;

[0026] Figure 6 It shows a schematic structural diagram of the front of the two-pole combination core connected by the connecting piece provided in an embodiment of the present application;

[0027] Figure 7 Shown Figure 6 A schematic structural diagram of two pole groups connected by a connecting piece from another perspective;

[0028] Figure 8 A schematic diagram of the structure of two pole combination cores connected by connecting pieces provided in an embodiment of the present application after bending is shown;

[0029] Figure 9 Shown Figure 1 A schematic structural diagram of a connecting piece bending mechanism of a pole assembly core bending device shown;

[0030] Figure 10 Shown Figure 9 A structural schematic diagram of the connecting piece bending mechanism from another perspective;

[0031] Figure 11 Shown Figure 9 A structural schematic diagram of the connecting piece bending mechanism from another perspective is shown.

[0032] Description of main component symbols:

[0033] 100-pole group core bending device; 10-pole group turning mechanism; 11-frame; 12-turning plate; 13-turning drive member; 14-sensor; 15-turning seat; 16-follower seat; 20-connecting piece bending mechanism; 21-connecting frame; 22-pressing plate; 23-bending plate; 24-insertion drive member; 25-pressing drive member; 26-rotation drive member; 27-transmission assembly; 271-driving wheel; 272-driven wheel; 273-synchronous belt; 274-rotating frame; 28-insertion drive member; 30-spacing adjustment mechanism; 31-adjusting drive member; 32-adjusting plate; 33-slide rail; 40-pole group transplanting mechanism; 200-pole group; 300-connecting piece; 400-cover plate. DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0037] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0039] Example 1

[0040] See also Figure 1 An embodiment of the present application provides a pole group core bending device 100, which is used in battery processing equipment to combine and bend two pole groups 200 connected by a connecting piece 300, so that they are combined into one battery cell. The thicker and harder connecting piece 300 can be bent to ensure that the pole ear welded to the connecting piece 300 will not break or tear, thereby improving the yield of the combined core.

[0041] See also Figures 6 to 8 The electrode group 200 is roughly in the shape of a rectangular parallelepiped. The connecting piece 300 is in the shape of a sheet.

[0042] See also Figure 6 and Figure 7 Before the core is closed, the two pole groups 200 are placed opposite each other, and the pole tabs are opposite each other. The connecting piece 300 is located between the two pole groups 200, and both sides of the connecting piece 300 are connected to the pole tabs of the corresponding pole group 200 respectively.

[0043] See also Figure 8 After the core is closed, the two electrode groups 200 are stacked side by side with the tabs on the same side. The connecting piece 300 is on the same side as the tabs, and both sides of the connecting piece 300 are bent, and the bent parts are respectively connected to the corresponding tabs.

[0044] In some embodiments, the side of the connecting piece 300 facing away from the bent portion is connected to the cover plate 400 , so that the cover plate 400 serves as the top of the battery cell after the electrode group 200 is assembled.

[0045] In some embodiments, the tabs of the electrode group 200 and the connecting piece 300 are ultrasonically welded together.

[0046] The electrode assembly core bending device 100 includes an electrode assembly flipping mechanism 10 and a connecting piece bending mechanism 20. The electrode assembly flipping mechanism 10 is used to support two electrode assemblies 200 connected by a connecting piece 300 and flip the two electrode assemblies 200 placed thereon so that the two electrode assemblies 200 are brought closer together. The connecting piece bending mechanism 20 is provided on one side of the electrode assembly flipping mechanism 10. The connecting piece bending mechanism 20 is used to bend the connecting piece 300 connecting the two electrode assemblies 200, so as to cooperate with the electrode assembly flipping mechanism 10 to bend the two electrode assemblies 200 connected by the connecting piece 300 together to form a single battery cell.

[0047] For details, please refer to Figures 2 to 5 The pole group flipping mechanism 10 includes a frame 11, two flip plates 12 and two flip driving members 13. The two flip plates 12 are arranged opposite to each other and are respectively rotatably arranged on the frame 11. The rotating axes of the two flip plates 12 are parallel to each other, and the rotating axes are located on the side where the two flip plates 12 are close to each other. The two flip plates 12 are used to carry the corresponding pole groups 200 respectively. The flip driving member 13 is connected to the corresponding flip plate 12. The flip driving member 13 is used to drive the corresponding flip plate 12 to rotate so that the two pole groups 200 carried on the two flip plates 12 are flipped and closed.

[0048] In some embodiments, the electrode group flipping mechanism 10 further includes a sensor 14. The sensor 14 is used to sense whether an electrode group 200 is placed on the flip plate 12, thereby controlling the start and stop of the flip driving member 13.

[0049] In some embodiments, the pole group flipping mechanism 10 further includes a flip seat 15 and a follower seat 16. The flip seat 15 and the follower seat 16 are disposed opposite each other on the frame 11. The flip plate 12 has two ends on one side of the rotation axis that are rotatably connected to the flip seat 15 and the follower seat 16, respectively. The flip driver 13 is disposed on the flip seat 15, and its driving end passes through the flip seat 15 and is connected to the flip plate 12. The flip driver 13 drives the corresponding flip plate 12 to rotate on the flip seat 15.

[0050] In some embodiments, the sensor 14 is disposed on the flip seat 15 .

[0051] In some embodiments, the pole group core bending device 100 includes a connecting piece bending mechanism 20. The connecting piece bending mechanism 20 bends two connecting pieces 300 between two pole groups 200 simultaneously.

[0052] However, the present invention is not limited thereto. In other embodiments, the pole group core bending device 100 includes two connecting piece bending mechanisms 20. The two connecting piece bending mechanisms 20 are disposed on opposite sides of the pole group flipping mechanism 10 to simultaneously bend two connecting pieces 300 between two pole groups 200.

[0053] See also Figures 9 to 11 The connecting piece bending mechanism 20 includes a connecting frame 21, a pressing plate 22 and two bending plates 23. The connecting frame 21 is provided on one side of the pole group flipping mechanism 10. The pressing plate 22 and the two bending plates 23 are respectively provided on the connecting frame 21. The pressing plate 22 is located between the two flip plates 12 that support the pole group 200. The pressing plate 22 is used to press the connecting piece 300 between the two pole groups 200. The two bending plates 23 are located on the side of the connecting piece 300 that is away from the pressing plate 22, that is, before the two pole groups 200 are bent and flipped, the pressing plate 22 is located above the connecting piece 300, and the two bending plates 23 are located below the connecting piece 300. The two bending plates 23 correspond to the corresponding flip plates 12 respectively, and the bending plates 23 are used to bend the side of the corresponding flip plate 12 where the pole group 200 is connected to the connecting piece 300.

[0054] The pressing plate 22 is generally strip-shaped, and its cross section is an isosceles triangle. The two waists of the isosceles triangle are used to cooperate with the bending plate 23, and the bottom edge is used to press the connecting piece 300.

[0055] Specifically, the bending plate 23 is used to rotate along the flipping direction of the corresponding flip plate 12 to cooperate with the pressing plate 22. When the two electrode groups 200 are flipped by the flip plate 12, the side of the connecting piece 300 is bent so that it flips simultaneously with the flipping of the electrode groups 200. After the two electrode groups 200 are closed, the side of the connecting piece 300 is further bent, and both sides of the connecting piece 300 are respectively bent on the pressing plate 22. After the bending is completed, the connecting piece 300 is as shown in FIG. Figure 8 As shown in .

[0056] In some embodiments, the connecting piece bending mechanism 20 further includes an insertion drive member 24 and a pressing drive member 25. The insertion drive member 24 is disposed on the connecting frame 21. The pressing drive member 25 is disposed at the driving end of the insertion drive member 24. The pressure plate 22 is disposed at the driving end of the pressing drive member 25. The insertion drive member 24 is used to drive the pressing drive member 25 to move, thereby driving the pressure plate 22 to move above the connecting piece 300. The pressing drive member 25 is used to drive the pressure plate 22 to move downward, so that the pressure plate 22 is pressed on the connecting piece 300.

[0057] In some embodiments, the insertion drive member 24 and the pressing drive member 25 are both cylinders.

[0058] In some embodiments, the connecting plate bending mechanism 20 further includes a rotational driver 26 and a transmission assembly 27. The transmission assembly 27 is disposed on the connecting frame 21. The transmission assembly 27 connects the corresponding bending plate 23 and the rotational driver 26. The rotational driver 26 drives the corresponding bending plate 23 to rotate via the transmission assembly 27.

[0059] Specifically, the transmission assembly 27 includes a driving wheel 271, a driven wheel 272, a synchronous belt 273, and a rotating frame 274. The rotating frame 274 is mounted on the connecting frame 21. The driving wheel 271 and the driven wheel 272 are respectively rotatably mounted on the rotating frame 274. The synchronous belt 273 is sleeved on the driving wheel 271 and the driven wheel 272. The rotating drive member 26 is mounted on the rotating frame 274, and its driving end is connected to the driving wheel 271. The bending plate 23 is connected to the driven wheel 272.

[0060] In some embodiments, the two transmission assemblies 27 share a rotating frame 274 , but this is not limited thereto.

[0061] In some embodiments, the rotary drive member 26 is a servo motor.

[0062] In some embodiments, the connecting piece bending mechanism 20 further includes an inserting driving member 28. The inserting driving member 28 is used to drive the bending plate 23 to move and insert under the connecting piece 300.

[0063] Specifically, the rotating frame 274 is slidably mounted on the connecting frame 21. The rotating frame 274 is connected to the driving end of the extending driving member 28. The extending driving member 28 can drive the rotating frame 274 to move, thereby driving the bending plate 23 mounted on the rotating frame 274 to move below the connecting piece 300.

[0064] In some embodiments, the extending driving member 28 is a cylinder.

[0065] See also Figures 2 to 5 In some embodiments, the pole group core bending device 100 further includes a spacing adjustment mechanism 30. The spacing adjustment mechanism 30 is connected to the pole group flipping mechanism 10. The spacing adjustment mechanism 30 is used to adjust the spacing between the two flip plates 12 so that the flip plates 12 can flip pole groups 200 of different thicknesses, facilitating adjustment according to the processing object.

[0066] The spacing adjustment mechanism 30 includes an adjustment drive 31 and two adjustment plates 32. The two adjustment plates 32 are disposed opposite each other and are slidably mounted on the frame 11. The two flip plates 12 can slide toward and away from each other. The two flip plates 12 are rotatably mounted on their respective adjustment plates 32. The adjustment drive 31 is connected to each of the two adjustment plates 32. The adjustment drive 31 is used to drive the two adjustment plates 32 to move relative to each other, thereby adjusting the spacing between the two flip plates 12 mounted on the two adjustment plates 32.

[0067] Specifically, the flip seat 15 and the follower seat 16 are respectively provided on the adjustment plate 32. The flip plate 12 is rotatably provided on the adjustment plate 32 through the flip seat 15 and the follower seat 16.

[0068] In some embodiments, the flip seat 15 on the adjustment plate 32 is arranged opposite to the follower seat 16 on the other adjustment plate 32, so that the two flip driving members 13 are arranged on both sides of the adjustment plate 32 for easy installation.

[0069] In some embodiments, the spacing adjustment mechanism 30 further includes a slide rail 33. The slide rail 33 is provided on the frame 11 along the sliding direction of the flip plate 12. The two adjustment plates 32 are respectively provided on the slide rail 33.

[0070] In some embodiments, the adjusting drive member 31 is a cylinder. The adjusting drive member 31 is located on a side of the frame 11 facing away from the adjusting plate 32 .

[0071] In some embodiments, the pole assembly core bending device 100 further includes a pole assembly transfer mechanism 40, which is used to transfer the two pole assemblies 200 after bending, thereby facilitating continuous operation after the pole assembly core is formed.

[0072] The pole group core bending device 100 provided in the present application is aimed at some large-capacity battery cells whose internal structure connecting pieces 300 are relatively thick and hard. Through the cooperation of the bending plate 23 and the pressure plate 22, the rotating drive member 26 drives the bending plate 23 to rotate, actively bending the two sides of the connecting piece 300, and cooperating with the two flip plates 12 of the pole group flipping mechanism 10 to flip and close the two pole groups 200 at the same time, completing the core closing operation of the pole group 200, so that the thicker and harder connecting piece 300 can be bent, ensuring that the pole ear welded to the connecting piece connecting the pole group will not break or tear, thereby improving the yield of the core closing.

[0073] Example 2

[0074] See also Figures 1 to 11 This embodiment also provides a core-closing and bending method for closing and bending two pole groups 200 connected by a connecting piece 300. The core-closing and bending method of this embodiment is based on the pole group core bending device 100 provided in the above embodiment. The core-closing and bending method includes:

[0075] S101 : Press the connecting piece 300 tightly with the pressing plate 22 .

[0076] Specifically, the insertion drive 24 drives the clamping drive 25 to move, driving the pressure plate 22 to move above the connecting piece 300. Then, the clamping drive 25 drives the pressure plate 22 to move downward, so that the pressure plate 22 is pressed on the connecting piece 300 to clamp the connecting piece 300.

[0077] S102: The two electrode groups 200 are flipped by the electrode group flipping mechanism 10, and the bending plate 23 is rotated to bend the connecting piece 300, so as to close the two electrode groups 200.

[0078] Specifically, the two flip driving members 13 drive the corresponding flip plates 12 to rotate, so that the two pole groups 200 respectively carried on the two flip plates 12 are flipped; at the same time, the rotating driving member 26 drives the driving wheel 271 to rotate, and through the synchronous belt 273 and the driven wheel 272, the bending plate 23 is rotated, and cooperates with the pressure plate 22 to bend the two sides of the connecting plate 300 to close the two pole groups 200.

[0079] S103 : Continue to rotate the bending plate 23 to bend both sides of the connecting piece 300 and press them onto the pressing plate 22 .

[0080] Specifically, the flip driver 13 stops driving, and the rotation driver 26 continues driving to rotate the bending plate 23, cooperating with the pressing plate 22 to bend both sides of the connecting piece 300, and finally bend and press it onto the pressing plate 22. This completes the core connection and bending of the two pole groups 200 connected by the connecting piece 300.

[0081] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0082] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A pole group core bending device, used for combining and bending two pole groups connected by connecting plates, characterized in that: It includes a pole group flipping mechanism and a connecting piece bending mechanism. The pole group flipping mechanism is used to flip the two pole groups so that the two pole groups are brought together. The connecting piece bending mechanism includes a pressure plate and two bending plates. The pressure plate is located between the two pole groups and is used to press the connecting piece. The two bending plates are located on the side of the connecting piece away from the pressure plate. The two bending plates correspond to the corresponding pole groups respectively. The bending plates are used to rotate along the flipping direction of the corresponding pole group to cooperate with the pressure plate. The connecting piece is bent when the two pole groups are flipped, and the two sides of the connecting piece are bent on the pressure plate after the two pole groups are brought together.

2. The pole combination core bending device according to claim 1, characterized in that: The connecting piece bending mechanism also includes an insertion drive and a clamping drive. The pressure plate is arranged at the driving end of the clamping drive, and the clamping drive is arranged at the driving end of the insertion drive. The insertion drive is used to drive the pressure plate to move above the connecting piece, and the clamping drive is used to drive the pressure plate to press on the connecting piece.

3. The pole combination core bending device according to claim 1, characterized in that: The connecting plate bending mechanism further includes a rotating drive member and a transmission assembly. The transmission assembly connects the corresponding bending plate and the rotating drive member. The rotating drive member drives the corresponding bending plate to rotate through the transmission assembly.

4. The pole combination core bending device according to claim 3, characterized in that: The transmission assembly includes a driving wheel, a driven wheel and a synchronous belt. The driving wheel and the driven wheel are respectively rotatably arranged on a rotating frame. The synchronous belt is sleeved on the driving wheel and the driven wheel. The driving end of the rotating driving member is connected to the driving wheel, and the bending plate is connected to the driven wheel.

5. The pole combination core bending device according to claim 4, characterized in that: The connecting piece bending mechanism further includes an inserting driving member, the rotating frame is mounted on the driving end of the inserting driving member, and the inserting driving member is used to drive the bending plate to move below the connecting piece.

6. The pole combination core bending device according to claim 1, characterized in that: The pole group flipping mechanism includes two flipping driving members and two flipping plates. The two flipping plates are used to respectively carry the corresponding pole groups. The flipping driving members are used to drive the corresponding flipping plates to rotate so that the two pole groups carried on the two flipping plates are closed.

7. The pole combination core bending device according to claim 6, characterized in that: The pole combination core bending device further includes a spacing adjustment mechanism, which is used to adjust the spacing between the two flip plates.

8. The pole combination core bending device according to claim 7, characterized in that: The spacing adjustment mechanism includes an adjustment drive and two adjustment plates, the two adjustment plates are arranged opposite to each other, the two flip plates are respectively arranged on the corresponding adjustment plates, the adjustment drive is respectively connected to the two adjustment plates, and the adjustment drive is used to drive the two adjustment plates to move relative to each other to adjust the spacing between the two flip plates.

9. The pole combination core bending device according to claim 1, characterized in that: The pole group core bending device further includes a pole group transplanting mechanism, which is used to transfer the two pole groups after bending.

10. A core closing and bending method for closing and bending two pole groups connected by a connecting piece, characterized in that: The following steps are involved: The connecting piece is pressed by a pressing plate, and the insert driving member drives the pressing driving member to move, thereby driving the pressing plate to move above the connecting piece. Subsequently, the pressing driving member drives the pressing plate to move downward, so that the pressing plate is pressed on the connecting piece; The two pole groups are flipped by the pole group flipping mechanism, and the bending plate is rotated to bend the connecting piece to bring the two pole groups together. The two flip driving members drive the corresponding flip plates to rotate, so that the two pole groups respectively carried on the two flip plates are flipped; at the same time, the rotating driving member drives the driving wheel to rotate, and the bending plate is rotated through the synchronous belt and the driven wheel to cooperate with the pressing plate to bend the two sides of the connecting piece; Continue to rotate the bending plate to bend the two sides of the connecting piece and press them on the pressure plate. The flip drive member stops driving, and the rotating drive member continues to drive the bending plate to rotate, cooperate with the pressure plate, bend the two sides of the connecting piece, and finally bend and press them on the pressure plate.

Images