Bending mechanism, bending device and busbar mounting equipment

Abstract

The utility model relates to the technical field of battery processing, and particularly discloses a bending mechanism, a bending device and busbar mounting equipment. The bending mechanism comprises a bending part and a shaping part; the bending piece is used for bending the tab; and the shaping piece is arranged beside the bending piece, so that the bent tab can be pressed immediately after the tab is bent by the bending piece, the situation that the tab rebounds or arches in the transfer process is avoided, the tab is better attached to the busbar, the subsequent welding effect is improved, and the problem that the existing tab rebounds or arches after being bent is effectively solved.

Description

Technical Field

[0001] The present application relates to the field of battery processing technology, and in particular to a bending mechanism, a bending device and a busbar installation device. Background Art

[0002] During the battery production process, the busbar is used to connect multiple tabs. When connecting, the busbar needs to be inserted into the tabs, and the tabs are bent so that they fit the busbar, and then the tabs and the busbar are welded.

[0003] In the existing production process, R&D personnel have found that when the tab is bent, the gap between the thin tab and the bus is offset, causing the lower fulcrum relative to the bus to change during bending; after the tab is bent at the bending station, it needs to be transferred to the pressing station for pressing to make the tab and the bus fit tightly to ensure the welding effect. However, in this process, the tab will rebound or arch, causing the tab to separate from the bus, resulting in a poor welding effect. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide a bending mechanism, a bending device and a busbar installation device, which are used to solve the problem that the existing tabs will rebound or arch after bending.

[0005] In order to achieve the above technical objectives, the first aspect of the present application provides a bending mechanism, including: a bending member and a shaping member;

[0006] The bending piece is movably arranged to be used for bending the pole ear;

[0007] The shaping member is arranged beside the bending member, and the shaping member is movably arranged to press and straighten the bent pole ear.

[0008] Further, the shaping member comprises at least two;

[0009] At least two shaping members are respectively arranged on both sides of the bending member.

[0010] Furthermore, the shaping member and the bending member are in contact with each other.

[0011] Furthermore, the bending member is movably arranged along a first direction, and is used to move along the first direction to approach or move away from the busbar;

[0012] The bending member is movably arranged along a second direction, and is used to move along the second direction to bend the pole ear on the busbar;

[0013] The shaping member is movably arranged along the first direction, and is used for moving along the first direction to press and straighten the pole ear.

[0014] Further, it also includes: a first drive assembly;

[0015] The first driving assembly is transmission-connected to the bending member, and is used to drive the bending member to move along the first direction;

[0016] It also includes: a second driving assembly; the second driving assembly is drivingly connected to the bending member and the first driving assembly, and is used to drive the bending member and the first driving assembly to move along the second direction;

[0017] It also includes: a third driving component; the third driving component is transmission-connected to the shaping member, and is used to drive the shaping member to move along the first direction.

[0018] Furthermore, the end surface of the bending piece close to the bus is a strip-shaped plane.

[0019] Furthermore, the end surface of the shaping member close to the bus is a strip-shaped plane.

[0020] Furthermore, before the bending member bends the pole lug, the pole lug to be bent, the bending member and the shaping member are parallel to each other.

[0021] A second aspect of the present application provides a bending device, comprising: a press table and any one of the above-mentioned bending mechanisms;

[0022] The pressing platform is used for fixing the busbar.

[0023] Further, it includes: the press table is provided with at least two clamping claws that can be opened and closed;

[0024] At least two of the clamping jaws are used to clamp and fix the busbar.

[0025] Furthermore, a step groove is provided on the clamping jaw;

[0026] The depth of the step groove is equal to the thickness of the busbar;

[0027] A clamping space for clamping the busbar is formed between the step grooves of at least two of the clamping jaws.

[0028] A third aspect of the present application provides a busbar installation device, comprising: a bending device and a busbar installation mechanism;

[0029] The bending device comprises: a press table and any one of the bending mechanisms described above;

[0030] The busbar installation mechanism is used to move the busbar to be embedded on the pole lug;

[0031] The pressing platform is used for fixing the busbar which is sleeved on the pole ear.

[0032] It can be seen from the above technical scheme that the present application provides a bending mechanism, a bending device and a busbar installation device, wherein the bending mechanism includes: a bending part and a shaping part; the bending part is used to bend the pole ear; the shaping part is arranged on the side of the bending part, and can immediately press the bent pole ear after the bending part bends the pole ear, so as to avoid the pole ear from rebounding or arching during transportation, so that the pole ear can better fit the busbar, thereby improving the subsequent welding effect, and effectively solving the problem of rebound or arching of the existing pole ear after bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 A structural schematic diagram of a bending mechanism provided in an embodiment of the present application;

[0035] Figure 2 A schematic diagram of a bending mechanism provided in an embodiment of the present application for bending a tab on a busbar;

[0036] Figure 3 A schematic diagram of the overall structure of a bending mechanism provided in an embodiment of the present application;

[0037] Figure 4 A schematic diagram of a bending device provided in an embodiment of the present application;

[0038] Figure 5 A schematic diagram of a press table of a bending mechanism provided in an embodiment of the present application;

[0039] Figure 6 A schematic diagram of the bottom of a press table of a bending mechanism provided in an embodiment of the present application;

[0040] Figure 7 A schematic diagram of a bottom plate of a bending mechanism provided in an embodiment of the present application;

[0041] Figure 8 A schematic diagram of a single clamping claw of a bending mechanism provided in an embodiment of the present application;

[0042] Fig. 9 A schematic diagram of a bus installation mechanism in a bus installation device provided in an embodiment of the present application.

[0043] In the figure:

[0044] 1. Tab; 2. Bus; 10. Bending piece; 20. Shaping piece; 31. First drive assembly; 32. Second drive assembly; 33. Third drive assembly; 40. Pressing table; 41. Clamping claw; 42. Step groove; 43. Bottom plate; 44. Slide; 50. Bus mounting mechanism; 51. Gantry; 52. Grasping assembly; 53. Lifting assembly; 100. Bending frame;

[0045] x-axis direction: first direction; y-axis direction: second direction. DETAILED DESCRIPTION

[0046] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the specification of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection requested by the present application.

[0047] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0048] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0049] See also Figure 1 and Figure 2 In a first aspect, a bending mechanism is provided in an embodiment of the present application. The bending mechanism can be used to bend the pole ear 1 and make the bent pole ear 1 close to the bus 2.

[0050] Specifically, the bending mechanism provided in this embodiment may include: a bending component 10 and a shaping component 20 .

[0051] The bending member 10 is movably arranged to bend the tab 1; Figure 2 As shown, the busbar 2 is embedded on the pole lug 1 ; the bending member 10 can push the pole lug 1 so that the portion of the pole lug 1 located above the busbar 2 is bent and fits with the busbar 2 .

[0052] The shaping member 20 is disposed beside the bending member 10, and the shaping member 20 is movably disposed, and is used to press and straighten the bent pole lug 1. The shaping member 20 presses and straightens the bent pole lug 1, for example, by reciprocating the shaping member 20 in the direction of approaching and moving away from the bus 2, so as to achieve repeated stamping of the bent pole lug 1 so that the bent pole lug 1 is closely attached to the bus 2. The shaping member 20 presses and straightens the bent pole lug 1, for example, by stamping the bent pole lug 1 once by the shaping member 20, so that the bent pole lug 1 is closely attached to the bus 2.

[0053] In this embodiment, the shaping member 20 is located next to the bending member 10, so that after the bending member 10 bends the pole lug 1, the shaping member 20 can immediately press the pole lug 1 without waiting for the process of transferring the bus 2 and the pole lug 1, or a long interval between the bending process and the stamping process, thereby avoiding the problem of rebound or arching of the pole lug 1 during the transfer process.

[0054] As an implementation, see Figure 3 The shaping member 20 and the bending member 10 can be arranged on the same bending frame 100 so that the two can be positioned close to each other and can perform continuous operation, and when the bending member 10 moves along the second direction, the shaping member 20 can move synchronously with the bending member 10.

[0055] In practical applications, the shaping member 20 and the bending member 10 can also be respectively arranged on independent support structures, specifically, the shaping member 20 is located beside the adjacent position of the bending member 10, so that the shaping member 20 can perform continuous operation closely following the bending member 10.

[0056] It should be noted that the bending member 10 used to bend the tab 1 can be in sheet form, which is convenient for driving the bending member 10 to move and for pushing the tab 1 to bend the tab 1. At the same time, the sheet-shaped bending member 10 can be quickly inserted between the tabs 1 to avoid squeezing the tab 1 and causing deformation of the tab 1, which would lead to safety issues during the battery installation process.

[0057] In one embodiment, the end surface of the bending member 10 close to the busbar 2 is a strip-shaped plane.

[0058] In the embodiment provided in the present application, taking the busbar 2 located below the bending member 10 as an example, the tab 1 passes through the busbar 2 from bottom to top; the bending member 10 can move along the second direction, that is, the horizontal direction, so as to push the tab 1 to bend to fit the upper surface of the busbar 2. The end surface of the bending member 10 close to the busbar 2 is the bottom surface of the bending member 10, and the bottom surface is a strip-shaped plane that enables the bending member 10 to smooth the tab 1 during the bending process, so that the tab 1 is more closely fitted to the upper surface of the busbar 2.

[0059] Correspondingly, the end surface of the shaping member 20 close to the bus 2 is a strip-shaped plane. In this embodiment, the end surface of the shaping member 20 close to the bus 2 refers to the bottom surface of the shaping member 20; the bottom surface of the shaping member 20 is a strip-shaped plane, which enables the shaping member 20 to press the tab 1 linearly during the pressing process, and the tab 1 is uniformly and linearly pressed onto the bus 2 through multiple stampings of the shaping member 20.

[0060] The inventors have discovered that, in actual applications, a gap is provided on the bus 2 for the bending piece 10 to pass through; and since the tab 1 is in the form of a thin sheet, the width of the gap is greater than the thickness of the bending piece 10. Therefore, in the existing processing method, during the bending process and the transportation process, the tab 1 will move relative to the bus 2. For example, the tab 1 will move along the width direction of the gap, thereby further causing the tab 1 to be offset from the bus 2.

[0061] In this embodiment, by arranging the shaping member 20 and the bending member 10 located at adjacent positions, it is possible to fix the pole ear 1 during the bending process to prevent it from rebounding, and to keep the relative position of the pole ear 1 to the bus 2 unchanged, so that the bending action can be more thoroughly smoothed and fitted to the surface of the bus 2. In addition to preventing the pole ear 1 from rebounding or arching after bending, it can also prevent the two from offsetting during the subsequent movement of the bus 2 and the pole ear 1.

[0062] At the same time, in the embodiment provided by the present application, the shaping member 20 can perform the pressing and shaping operation on the pole lug 1 simultaneously with the bending operation performed by the bending member 10, that is, when the bending member 10 is bending the pole lug 1, the shaping member 20 is stamping the pole lug 1, which can further avoid the problem of the pole lug 1 and the bus 2 being offset during the bending process of the pole lug 1, so as to improve the final tightness of the pole lug 1 and the bus 2 after bending. This method of performing the bending operation and the pressing and shaping operation simultaneously, and the method of performing the pressing and shaping operation immediately following the bending operation, can make the flattening and shaping process of the pole lug 1 and the bending process seamlessly connected, reducing the resistance to the shaping of the pole lug.

[0063] In application, the shaping member 20 may include a Figure 1In the embodiment, the shaping member 20 is located on the left side of the bending member 10 , so that during the bending and shaping process, the bending member 10 can push the pole lug 1 from the left side of the pole lug 1 to bend the pole lug 1 .

[0064] In one embodiment, the shaping members 20 include at least two; at least two shaping members 20 are respectively arranged on both sides of the bending member 10, wherein the two sides of the bending member 10 refer to the two side end surfaces of the bending member 10 that are pushed to bend the tab 1.

[0065] By providing the shaping members 20 on both sides of the bending member 10, the bending member 10 can be operated from both sides of the busbar 2, for example, Figure 2 Bending operations can be performed on the left and right sides of the machine, which improves convenience in actual use.

[0066] In one embodiment, the shaping member 20 and the bending member 10 are bonded to each other; correspondingly, the shaping member 20 and the bending member 10 are respectively provided with bonding surfaces that enable the two to bond to each other.

[0067] The shaping piece 20 and the bending piece 10 fit together so that when the shaping piece 20 moves to press the tab 1, it will fit and move along the side of the bending piece 10, so that the shaping piece 20 can better follow the bending piece 10 for stamping to ensure the pressing effect of the tab 1.

[0068] In a more specific embodiment, the bending member 10 is movably arranged along a first direction, and is used to move along the first direction to approach or move away from the bus 2. Similarly, the bending machine 10 and the bus 2 are described as being in a vertical relationship, and the first direction in this embodiment can be a vertical direction, that is, Figure 3 The bending member 10 can move upward and away from the bus 2 so that the bus 2 can be replaced and placed, and then the bending member 10 can move downward and close to the bus 2, specifically to a position aligned with the junction of the tab 1 and the bus 2.

[0069] The bending member 10 is movably arranged along the second direction, and is used to move along the second direction to bend the tab 1 on the busbar 2. Correspondingly, the second direction can be a horizontal direction, that is, Figure 3 The y-axis direction is also the direction of the tab 1 to be bent on the bus 2.

[0070] The shaping member 20 is movably arranged along the first direction, and is used to move along the first direction to press and straighten the tab 1. Correspondingly, the shaping member 20 is used to move along the first direction, that is, the vertical direction, to press and straighten the tab 1.

[0071] In one embodiment, the bending mechanism further includes: a first driving assembly 31; the first driving assembly 31 is transmission-connected to the bending member 10, and is used to drive the bending member 10 to move along the first direction.

[0072] The bending mechanism also includes a second drive assembly 32, which is transmission-connected to the bending piece 10 and the first drive assembly 31, and is used to drive the bending piece 10 and the first drive assembly 31 to move along the second direction; specifically, the second drive assembly 32 can be transmission-connected to the above-mentioned bending frame 100, so as to drive the bending piece 10 to move along the second direction, that is, the horizontal direction, by driving the bending frame 100 to move.

[0073] The bending mechanism further includes a third driving assembly 33, which is transmission-connected to the shaping member 20 and is used to drive the shaping member 20 to move along the first direction.

[0074] The first drive assembly 31, the second drive assembly 32 and the third drive assembly 33 can all be arranged on the bending frame 100, and the first drive assembly 31, the second drive assembly 32 and the third drive assembly 33 can all be cylinders; and the first drive assembly 31, the second drive assembly 32 and the third drive assembly 33 are all electrically connected to the control mechanism. The control mechanism can control the start and stop of the first drive assembly 31, the second drive assembly 32 and the third drive assembly 33 to control the travel of the bending part 10 and the shaping part 20, so that after the bus 2 and the pole ear 1 are moved to the preset position, the first drive assembly 31, the second drive assembly 32 and the third drive assembly 33 can be controlled to drive the bending part 10 and the shaping part 20 to operate automatically.

[0075] In one embodiment, before the bending member 10 bends the pole lug 1 , the pole lug 1 to be bent, the bending member 10 and the shaping member 20 are parallel to each other.

[0076] That is, the plane where the end face of the pole ear 1 to be bent is located, the plane formed by the bending member 10 moving along the first direction, and the plane formed by the shaping member 20 moving along the first direction are parallel to each other, which can ensure that the bending member 10 applies uniform force to the pole ear 1 during the bending process of the pole ear 1, and ensure that the shaping member 20 has a uniform pressing effect on the pole ear 1.

[0077] A second aspect of the present application provides a bending device, which can bend the tabs 1 on the busbar 2 through a bending mechanism after the busbar 2 is fixed.

[0078] Specifically, see Figures 1 to 4 The bending device comprises: a press table 40 and any one of the above-mentioned bending mechanisms. The press table 40 is used to fix the busbar 2.

[0079] The pressing platform 40 can fix the bus 2 by pressing and fixing. For example, a pressing groove is provided at the bottom of the pressing platform 40; the pressing groove can be placed in the bus 2, so that the pressing platform 40 can press the outer edge of the bus 2. The pressing groove also penetrates along the first direction, that is, the vertical direction, so that the bending mechanism can perform the above-mentioned bending and pressing operations on the tabs on the bus 2, so that the edge of the bus gap can abut against one side of the tab, and the bending member 10 abuts against the other side of the tab, further realizing that the relative position of the bus gap and the tab remains unchanged, stabilizing the lower support point required when bending the tab, and being able to meet the requirement of completely bending the tab.

[0080] In one embodiment, see Figure 5 and Figure 6 At least two clamping jaws 41 that can be opened and closed are provided on the pressing platform 40; at least two clamping jaws 41 are used to clamp and fix the busbar 2.

[0081] The pressing platform 40 and the bending mechanism can be installed on the same support plate in an upper and lower arrangement. The pressing platform 40 can include a bottom plate 43; two clamping jaws 41 can be movably arranged on the bottom plate 43 to clamp and fix the busbar 2.

[0082] In the present embodiment, by clamping the bus 2 with the clamping claws 41, after the bus 2 is fixed, the bus 2 can be driven to move up and down by the lifting and lowering platform 40, thereby driving the bus 2 to be suspended in the air. When the surface of the module for placing the bus is uneven, the problem of inaccurate bending height and thus inadequate bending can be avoided.

[0083] In a more specific embodiment, Figure 7 As shown, a slideway 44 is disposed on the bottom plate 43 ; the clamping jaw 41 can be slidably disposed on the slideway 44 .

[0084] In another embodiment, see Figure 6 and Figure 8 A step groove 42 is provided on the clamping jaw 41; the depth of the step groove 42 is equal to the thickness of the bus 2; and a clamping space for clamping the bus 2 is formed between the step grooves 42 of at least two clamping jaws 41.

[0085] like Figure 8 As shown, a single step groove 42 is an open structure; the step grooves 42 of the two clamping jaws 41 together enclose a clamping space for clamping the bus 2, and the size of the clamping space can be adjusted by sliding the clamping jaws 41 along the slide 44 to adapt to busbars 2 of different sizes.

[0086] In this embodiment, the depth of the step groove 42 is equal to the thickness of the busbar 2 , so that when the busbar 2 is placed on a flat module, the two clamping jaws 41 can press and fix the busbar 2 on the module through the step groove 42 .

[0087] The third aspect of the present application provides a busbar installation device, see Fig. 9 , including: a bending device and a busbar mounting mechanism 50.

[0088] The bending device may be the bending device in the embodiment provided in the second aspect above, which comprises: a press table 40 and any one of the bending mechanisms described above.

[0089] The busbar installation mechanism 50 is used to move the busbar 2 to be inserted on the tab 1 ; the pressing platform 40 is used to fix the busbar 2 inserted on the tab 1 .

[0090] The busbar installation mechanism 50 may include a gantry 51, a grabbing assembly 52 and a lifting assembly 53. The lifting assembly 53 is arranged on the gantry 51 and can be moved to any position on the busbar installation device through the gantry 51. The grabbing assembly 52 is arranged on the lifting assembly 53, so that after grabbing the busbar 2, the position of the busbar 2 can be adjusted by lifting and lowering the lifting assembly 53, so that the busbar 2 is embedded on the tab 1.

[0091] In a more specific embodiment, the grabbing assembly 52 is provided with a clamping member that can be opened and closed for clamping the bus 2, and is also provided with a sensing assembly for sensing the position and size of the bus 2, so that the gantry 51 and the lifting assembly 53 can accurately drive the grabbing assembly 52 to move above the bus 2 for grabbing.

[0092] The above are only preferred embodiments of the present application and are not intended to limit the present utility model. Although the present application has been described in detail with reference to the examples, those skilled in the art can still modify the technical solutions recorded in the aforementioned examples or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A bending mechanism, characterized in that: include: A bending part (10) and a shaping part (20); The bending member (10) is movably arranged and used for bending the pole lug (1); The shaping piece (20) is arranged beside the bending piece (10), and the shaping piece (20) is movably arranged to press and straighten the bent pole lug (1).

2. The bending mechanism according to claim 1, characterized in that: The shaping member (20) comprises at least two; At least two shaping pieces (20) are respectively arranged on both sides of the bending piece (10).

3. The bending mechanism according to claim 1, characterized in that: The shaping piece (20) and the bending piece (10) are in contact with each other.

4. The bending mechanism according to claim 1, characterized in that: The bending member (10) is movably arranged along a first direction, and is used to move along the first direction to approach or move away from the busbar (2); The bending member (10) is movably arranged along a second direction, and is used to move along the second direction to bend the pole ear (1) on the busbar (2); The shaping member (20) is movably arranged along the first direction, and is used for moving along the first direction to press and straighten the pole lug (1).

5. The bending mechanism according to claim 4, characterized in that: Also includes: A first drive assembly (31); The first driving component (31) is drivingly connected to the bending member (10) and is used to drive the bending member (10) to move along the first direction; It also includes a second driving assembly (32), the second driving assembly (32) being drivingly connected to the bending member (10) and the first driving assembly (31), and being used for driving the bending member (10) and the first driving assembly (31) to move along the second direction; It also comprises a third driving assembly (33), wherein the third driving assembly (33) is drivingly connected to the shaping member (20) and is used to drive the shaping member (20) to move along the first direction.

6. The bending mechanism according to claim 1, characterized in that: The end surface of the bending piece (10) close to the busbar (2) is a strip-shaped plane.

7. The bending mechanism according to claim 1, characterized in that: The end surface of the shaping piece (20) close to the busbar (2) is a strip-shaped plane.

8. The bending mechanism according to claim 1, characterized in that: Before the bending piece (10) bends the pole lug (1), the pole lug (1) to be bent, the bending piece (10) and the shaping piece (20) are parallel to each other.

9. A bending device, characterized in that: include: A press table (40) and a bending mechanism as claimed in any one of claims 1 to 8; The pressing platform (40) is used to fix the busbar (2).

10. The bending device according to claim 9, characterized in that: include: The press platform (40) is provided with at least two clamping claws (41) that can be opened and closed for clamping; At least two of the clamping jaws (41) are used to clamp and fix the busbar (2).

11. The bending device according to claim 10, characterized in that: The clamping jaw (41) is provided with a step groove (42); The depth of the step groove (42) is equal to the thickness of the busbar (2); A clamping space for clamping the busbar (2) is formed between the step grooves (42) of at least two of the clamping jaws (41).

12. A busbar installation device, characterized in that: include: Bending device and busbar mounting mechanism (50); The bending device comprises: a press table (40) and a bending mechanism as claimed in any one of claims 1 to 8; The busbar installation mechanism (50) is used to move the busbar (2) to be embedded on the tab (1); The pressing platform (40) is used to fix the busbar (2) which is embedded on the pole ear (1).

Images