Battery welding equipment and battery production line

Abstract

The present invention belongs to the field of battery technology, and discloses a battery welding device and a battery production line. The above-mentioned battery welding equipment includes a welding device, a positioning seat, a frame and a lifting device. The lifting device includes a first driving member and a lifting member. The first driving member is installed on the frame. The lifting member is connected to the first driving member in a transmission manner and can be aligned with the center hole. The first driving member is used to drive the lifting member to move in a first direction so that the lifting member extends into the center hole and electrically presses the pole against the bus. By extending the lifting member into the center hole, the lifting member can continue to lift the pole upward, so that the pole and the winding core have a slight deformation to make up for the gap between the pole and the bus, ensuring that the pole is in contact with the bus when welding, thereby ensuring the welding effectiveness and welding stability of the pole and the bus, and improving the welding yield of the battery. By adopting the above-mentioned battery welding equipment, the above-mentioned battery production line can improve the battery welding quality and improve the battery production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to battery welding equipment and a battery production line. Background Art

[0002] Cylindrical batteries include a winding core and a pole. A small central hole extending along the axial direction of the winding core is formed in the middle of the winding core due to the winding action of the winding core. The pole is connected to the winding core and protrudes from the upper part of the winding core. Since the welding surface of the busbar is recessed and the pole is protruding, the pole and the busbar are welded together with the appropriate size. However, during actual welding, due to manufacturing deviations of the busbar or the pole, the recessed height of the busbar is often different from the protruding height of the pole. If the protruding height of the pole is insufficient, the pole and the bottom surface of the recessed area of ​​the busbar cannot contact each other, resulting in welding failure and reduced welding yield. Even if a lifting device is added to the bottom of the winding core, it only makes the winding core contact the busbar, but cannot solve the problem of the pole and the busbar not being able to contact each other.

[0003] Therefore, it is urgent to design a battery welding device and a battery production line to solve the problem of insufficient contact between the pole and the busbar during welding. Summary of the Invention

[0004] The object of the present invention is to provide a battery welding device that can ensure close contact between the pole and the busbar during welding and improve the welding yield rate.

[0005] Another object of the present invention is to provide a battery production line that can improve battery welding quality and battery production efficiency.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A battery welding device, wherein the battery comprises a winding core and a pole connected to each other, wherein a central hole extending in the axial direction is formed at the bottom of the winding core, and the battery welding device comprises:

[0008] Welding device, used for welding the above-mentioned poles and busbars;

[0009] A positioning seat is provided below the welding device, and a positioning groove is provided on the positioning seat for positioning the battery;

[0010] frame; and

[0011] The lifting member device includes a first driving member and a lifting member. The first driving member is installed on the above-mentioned frame. The above-mentioned lifting member is transmission-connected to the above-mentioned first driving member and can be directly opposite to the above-mentioned central hole. The above-mentioned first driving member is configured to drive the above-mentioned lifting member to move along the first direction so that the above-mentioned lifting member extends into the above-mentioned central hole and lifts the above-mentioned pole to press against the above-mentioned bus.

[0012] As a preferred solution, the battery welding equipment further includes a guiding device, and the guiding device includes:

[0013] A second driving member, the second driving member being mounted on the frame; and

[0014] The guide member is transmission-connected to the output end of the second driving member. The second driving member is configured to drive the guide member to move along the first direction. A through hole is provided on the guide member. The through hole can be opposite to the central hole. The lifting member can slide relative to the guide member along the through hole.

[0015] As a preferred solution, the battery welding equipment further includes a transmission device, which includes:

[0016] a third drive member; and

[0017] The transmission member is in transmission connection with the output end of the third driving member. A plurality of workstations are provided on the transmission member, and the workstations are used to install the positioning seat. The third driving member is configured to drive the transmission member to move and drive the plurality of workstations to intermittently move.

[0018] As a preferred solution, the battery welding equipment further includes a secondary positioning device, which includes:

[0019] a first clamping mechanism disposed on the frame and on one side of the transmission member, the first clamping mechanism comprising a fourth driving member and a first clamping member, the fourth driving member being disposed on the frame, the first clamping member being in transmission connection with an output end of the fourth driving member, the first clamping member facing a side of the battery being adapted to the shape of the battery; and

[0020] The second clamping mechanism is arranged on the frame and on the other side of the transmission member. The first clamping member and the second clamping mechanism can clamp the battery together.

[0021] As a preferred solution, the second clamping mechanism includes:

[0022] a fifth driving member, mounted on the frame;

[0023] a first mounting member, drivingly connected to the output end of the fifth driving member;

[0024] The clamping assembly includes a second clamping member and a rubber sleeve. The second clamping member is transmission-connected to the first mounting member. The rubber sleeve is sleeved on the second clamping member and can abut against the winding core.

[0025] As a preferred solution, the clamping assembly further comprises:

[0026] a second mounting member, the second mounting member being slidable relative to the first mounting member along a second direction, the second clamping member being mounted on one end of the second mounting member, the second direction being arranged at an angle to the first direction; and

[0027] The elastic member has one end connected to the first mounting member and the other end connected to the other end of the second mounting member.

[0028] As a preferred solution, the first mounting member includes:

[0029] a first mounting plate, disposed at an output end of the fifth driving member;

[0030] A second mounting plate, one end of which is connected to the first mounting plate; and

[0031] One end of the third mounting plate is connected to the other end of the second mounting plate; one end of the elastic member is connected to the other end of the third mounting plate, and the second mounting member can slide along the second mounting plate.

[0032] As a preferred solution, the second clamping mechanism further includes a guide assembly, which is disposed between the first mounting member and the second mounting member, and includes:

[0033] a guide rail, disposed on the second mounting plate and extending along the second direction; and

[0034] The slider is mounted on the second mounting member and is connected to the guide rail in a sliding manner.

[0035] As a preferred solution, the above-mentioned battery welding equipment further includes:

[0036] a shielding gas device, disposed below the welding device and used for spraying shielding gas onto the pole and the busbar; and

[0037] Dust removal device, used to absorb the dust generated by welding.

[0038] A battery production line comprising the above-mentioned battery welding equipment.

[0039] The beneficial effects of the present invention are:

[0040] The present invention provides a battery welding device. By providing a lifting member and allowing a first driving member to drive the lifting member to extend into a small central hole, the lifting member can continue to lift the pole upward, causing a slight deformation of the pole and the winding core to fill the gap between the pole and the bus bar, ensuring that the pole and the bus bar abut when welding the pole, thereby ensuring the welding effectiveness and stability of the pole and the bus bar, and improving the welding yield rate of the battery.

[0041] The present invention also provides a battery production line, which can improve battery welding quality and battery production efficiency by adopting the above-mentioned battery welding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 1 is a schematic structural diagram of a battery welding device provided by an embodiment of the present invention;

[0043] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0044] Figure 3 1 is a schematic structural diagram of a lifting device and a guiding device provided in an embodiment of the present invention;

[0045] Figure 4 It is a structural schematic diagram of a positioning seat provided by an embodiment of the present invention;

[0046] Figure 5 It is a structural schematic diagram of the first clamping mechanism provided in an embodiment of the present invention.

[0047] In the picture:

[0048] 10. Positioning seat; 11. Positioning groove; 12. Through hole;

[0049] 20. Frame; 21. First frame; 22. Second frame; 23. Third frame; 24. Fourth frame;

[0050] 30. Lifting device; 31. First driving member; 32. Lifting member; 33. Lifting member mounting seat;

[0051] 40. Guide device; 41. Second driving member; 42. Guide member; 43. Guide member mounting seat;

[0052] 51. Transmission parts; 511. Workstation;

[0053] 60. Secondary positioning device; 61. First clamping mechanism; 611. Fourth driving member; 612. First clamping member; 6121. Main body; 6122. Positioning block;

[0054] 62, second clamping mechanism; 621, fifth driving member; 622, first mounting member; 6221, first mounting plate; 6222, second mounting plate; 6223, third mounting plate;

[0055] 623, clamping assembly; 6231, second clamping member; 6232, rubber sleeve; 6233, second mounting member; 6234, elastic member;

[0056] 624, guide assembly; 6241, guide rail; 6242, slider;

[0057] 80. Dust removal device; 81. Sixth driving member; 82. Cavity; 821. Air hole; 83. Dust removal pipe; 200. Battery; 210. Winding core; 220. Pole. DETAILED DESCRIPTION

[0058] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0059] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and 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 in specific circumstances.

[0060] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0061] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0062] The battery 200 needs to go through multiple steps in the process of manufacturing. In the process from semi-finished product to finished product, it needs to go through steps such as welding, liquid injection and steel shell packaging. The battery 200 mentioned in this embodiment is a battery 200 in a semi-finished state. Figure 1As shown, the battery 200 to be welded includes a connected winding core 210 and a terminal 220 (the steel shell is not installed before welding). A small central hole extending axially is formed at the bottom of the winding core 210. The terminal 220 needs to be welded to a busbar (not shown). Because the terminal 220 protrudes from the winding core 210, the welding point of the busbar is recessed to match the terminal 220. However, due to manufacturing dimensional deviations between the terminal 220 and the busbar, the height of the busbar recess often differs from the height of the terminal 220 protruding. If the height of the terminal 220 protruding is insufficient, the terminal 220 and the bottom surface of the busbar recess cannot contact each other, resulting in welding failure and reduced welding yield. Even if a lifting device is added to the bottom of the winding core 210, it only makes the winding core 210 contact the busbar, but does not solve the problem of the terminal 220 and the busbar not being able to contact each other.

[0063] In order to solve the above problems, this embodiment provides a battery welding device that can ensure close contact between the pole 220 and the busbar during welding, thereby improving the welding yield rate. Figures 1-4 As shown, the battery welding equipment includes a welding device (not shown in the figure), a positioning seat 10, a frame 20 and a lifting device 30. The welding device is used to weld the pole 220 and the busbar. The positioning seat 10 is arranged below the welding device. The positioning seat 10 is provided with a positioning groove 11 capable of positioning the battery 200. The lifting device 30 includes a first driving member 31 and a lifting member 32. The first driving member 31 is installed on the frame 20. The lifting member 32 is connected to the first driving member 31 in a transmission manner and can be aligned with the center hole. The first driving member 31 is used to drive the lifting member 32 along a first direction (i.e. Figure 1 and Figure 3 The lifting member 32 is moved in the X direction as shown in FIG. 3 so as to extend into the central hole and lift the pole 220 to press against the busbar.

[0064] By providing a lifting member 32 and allowing the first driving member 31 to drive the lifting member 32 into the central aperture, the lifting member 32 can continue to lift the terminal 220 upward, causing slight deformation of the terminal 220 and the winding core 210 to fill the gap between the terminal 220 and the busbar, ensuring that the terminal 220 abuts the busbar during welding, thereby ensuring the effectiveness and stability of the welding between the terminal 220 and the busbar, and improving the welding yield of the battery 200. Optionally, the lifting member 32 is a pin whose shape is adapted to the central aperture.

[0065] Alternatively, as Figure 3As shown, the first driving member 31 is a linear motor. A slide and a slide rail are provided between the output end of the linear motor and the frame 20. The slide is mounted on the frame 20, and the lifting member 32 is in driving connection with the slide. The arrangement of the linear motor and the slide is conventional in the art and will not be described in detail here. In other embodiments, the first driving member 31 may also be a cylinder or other driving member for driving an object in linear motion, which is not limited here.

[0066] Preferably, if Figure 3 As shown, the lifting device 30 also includes a lifting member mounting seat 33, which is connected to the slide. The cross-sectional area of ​​the lifting member mounting seat 33 gradually decreases from top to bottom, and the lifting member 32 is installed on the side with a larger cross-sectional area, thereby improving the supporting strength of the lifting member mounting seat 33.

[0067] Since the lifting piece 32 is relatively slender, it is easy to bend and deform when using the lifting piece 32 to tighten the pole 220. At the same time, when the lifting piece 32 is inserted into the center hole, the lifting piece 32 is often not inserted smoothly due to the small size of the center hole. In order to solve the above problems, Figure 1 and Figure 3 As shown, the guide device 40 of this embodiment also includes a guide device 40, which includes a second driving member 41 and a guide member 42. The second driving member 41 is mounted on the mounting frame. The guide member 42 is transmission-connected to the output end of the second driving member 41. The second driving member 41 is used to drive the guide member 42 to move along the X direction. The guide member 42 has a through hole, which is directly opposite to the central aperture. The lifting member 32 can slide relative to the guide member 42 along the through hole. Through this arrangement, the lifting member 32 is guided into the central aperture by the guide member 42 before it extends into the central aperture, ensuring the accuracy of the insertion of the lifting member 32 into the central aperture. At the same time, the provision of the guide member 42 provides a certain protective effect on the lifting member 32, preventing the lifting member 32 from being deformed by the reaction force when supporting the pole 220. Optionally, the guide device 40 also includes a guide member mounting seat 43, which is mounted on the output end of the second driving member 41. The guide member 42 is disposed on the guide member mounting seat 43.

[0068] Preferably, if Figure 1As shown, the battery welding equipment also includes a transmission device, which includes a third drive member (not shown in the figure) and a transmission member 51. A plurality of workstations 511 are provided on the transmission member 51. The workstations 511 are used to install the positioning seat 10. The third drive member is used to drive the transmission member 51 to move and drive the plurality of workstations 511 to intermittently move. Through the above arrangement, the workstations 511 with different mounting seats pass under the welding device in sequence, which can realize the continuous welding of multiple batteries 200 by the battery welding equipment and improve work efficiency. In this embodiment, the transmission member 51 is a turntable and the third drive member is a servo motor. In other embodiments, the transmission member 51 can also be a transmission chain or a conveyor belt. The positioning seat 10 is fixed to the transmission chain or conveyor belt. The third drive member cooperates with the transmission wheel to drive the transmission chain or conveyor belt to perform linear reciprocating motion. This is not limited here.

[0069] Preferably, if Figure 1 As shown, the battery welding equipment also includes a shielding gas device and a dust removal device 80. The shielding gas device is located below the welding device and is used to spray shielding gas onto the pole 220 and busbar. The dust removal device 80 is used to remove dust generated by welding. This arrangement reduces the contact between the pole 220 and busbar with air during welding, reducing oxidation. At the same time, dust is promptly removed and prevented from being drawn into the weld, thereby improving welding quality. Specifically, the dust removal device 80 includes a sixth drive member 81, a cavity 82, and a dust removal pipe 83. The sixth drive member 81 is connected to the frame 20. The cavity 82 is transmission-connected to the output end of the sixth drive member 81. The cavity 82 is located above the positioning slot 11. The welding device emits a laser through the hole in the cavity 82 to weld the busbar and the pole 220. The dust removal pipe 83 has one end connected to the dust collection mechanism and the other end connected to the hole in the cavity 82, allowing dust to be sucked into the dust collection mechanism through the hole in the cavity 82. Preferably, the cavity 82 further has an air hole 821 connected to a gas generating device, and the protective gas enters the cavity 82 through the air hole 821 to provide protection for welding.

[0070] Since the transmission member 51 may have a slight error in the stopping position due to mechanical transmission during multiple transmissions, and since the size of the center hole is very small, the slight error may also cause the through hole of the guide member 42 to not correspond to the position of the center hole, thereby causing the lifting member 32 to be unable to be inserted into the center hole.

[0071] In order to solve the above problems, Figure 1As shown, the battery welding equipment of this embodiment also includes a secondary positioning device 60, which includes a first clamping mechanism 61 and a second clamping mechanism 62. The first clamping mechanism 61 is arranged on the frame 20 and on one side of the transmission member 51, and the second clamping mechanism 62 is arranged on the frame 20 and on the other side of the transmission member 51. The first clamping mechanism 61 and the second clamping mechanism 62 can jointly clamp the battery 200.

[0072] The following combination Figure 1 、 Figure 4 and Figure 5 The structure of the first clamping mechanism 61 is described as follows. Figure 1 As shown, the first clamping mechanism 61 includes a fourth drive member 611 and a first clamping member 612. The fourth drive member 611 is disposed on the frame 20. The first clamping member 612 is in transmission connection with the output end of the fourth drive member 611. The first clamping member 612 is adapted to the shape of the battery 200 on the side facing the battery 200. Through the above structure, the battery 200 is clamped together with the second clamping mechanism 62 to achieve a secondary positioning effect, solving the problem of inaccurate positioning caused by multiple transmissions of the transmission member 51. It should be noted that the frame 20 in this embodiment includes a first frame 21, a second frame 22, and a third frame 23. The lifting device 30 is disposed on the third frame 23, the guide device 40 is disposed on the first frame 21, the dust removal device 80 is disposed on the second frame 22, and the fourth drive member 611 is disposed on the fourth frame 24. During actual installation, appropriate adjustments can be made according to the positions of each device, which is not limited here.

[0073] like Figure 4 As shown, in order to achieve secondary positioning of the battery 200, the positioning seat 10 is set as a semi-circular cylinder. A protrusion is protruded along the first direction on the positioning seat 10 to stabilize the higher battery 200. A through hole 12 is opened at the lower part of the side of the positioning seat 10. Figure 5 As shown, the first clamping member 612 includes a main body 6121 and a positioning block 6122 connected to each other. The main body 6121 is arranged at the output end of the fourth driving member 611. The positioning block 6122 and the main body 6121 can both abut against the battery 200. The main body 6121 is arranged to avoid the protrusion, and the positioning block 6122 is arranged to avoid the through hole 12. Through this arrangement, the first clamping member 612 can clamp the battery 200 without affecting the function of the positioning base 10.

[0074] Preferably, the first clamping member 612 is provided with a magnetic member (not shown in the figure), which can attract the battery 200 to the first clamping member 612. Since the first clamping mechanism 61 and the second clamping mechanism 62 do not necessarily abut the battery 200 simultaneously when clamping the battery 200, the provision of the magnetic member can ensure that the battery 200 will not fall off during the clamping process. In this embodiment, the main body 6121 is configured as a U-shaped structure to avoid the positioning seat 10, and the two ends of the U-shaped structure abut the battery 200. In other embodiments, the shape of the main body 6121 or the positioning block 6122 can be adaptively adjusted according to the shape of the positioning seat 10.

[0075] The following combination Figure 1 and Figure 2 The structure of the second clamping mechanism 62 is described as follows. Figure 1 As shown, the second clamping mechanism 62 includes a fifth driving member 621, a first mounting member 622 and a clamping assembly 623. The fifth driving member 621 is installed on the first frame 21. The first mounting member 622 is transmission-connected to the output end of the fifth driving member 621. The clamping assembly 623 includes a second clamping member 6231 and a rubber sleeve 6232. The second clamping member 6231 is connected to the first mounting member 622. The rubber sleeve 6232 is sleeved on the second clamping member 6231 and can abut against the core 210. Through the above arrangement, the fifth driving member 621 drives the clamping assembly 623 to move and clamp the battery 200 together with the first clamping mechanism 61. The rubber sleeve 6232 abuts against the core 210 to prevent the second clamping member 6231 from damaging the core 210. In this embodiment, the second clamping member 6231 comprises an L-shaped member mounted on the first mounting member 622 and a mounting rod mounted on the other end of the L-shaped member. The rubber sleeve 6232 is mounted on the mounting rod. The split design facilitates the rubber sleeve 6232 to be mounted on the mounting rod elsewhere. In other embodiments, the second clamping member 6231 may also be a U-shaped member, which is not limited here.

[0076] Preferably, if Figure 1 and Figure 2 As shown, the clamping assembly 623 further includes a second mounting member 6233 and an elastic member 6234. The second mounting member 6233 can be moved along the second direction (ie Figure 1 and Figure 3The second clamping member 6231 is mounted on one end of the second mounting member 6233, and one end of the elastic member 6234 is connected to the first mounting member 622, and the other end is connected to the other end of the second mounting member 6233. The above arrangement allows the second mounting member 6233 to move away from the winding core 210 relative to the first mounting member 622 when the force exerted by the second clamping member 6231 on the winding core 210 is too great. The elastic member 6234 is compressed at the same time and provides a certain clamping force to the second clamping member 6231, so that the battery 200 is not damaged by excessive force. Optionally, the elastic member 6234 is a spring, which is low in cost and easy to install. In other embodiments, the elastic member 6234 can be an elastic cylinder, which is not limited here. In this embodiment, the X and Y directions are perpendicular. In other embodiments, the X and Y directions can be set at an angle, as long as the second clamping member 6231 is ensured to eventually abut against the winding core 210.

[0077] Specifically, if Figure 1 and Figure 2 As shown, the first mounting member 622 includes a first mounting plate 6221, a second mounting plate 6222 and a third mounting plate 6223. The first mounting plate 6221 is arranged at the output end of the fifth driving member 621, one end of the second mounting plate 6222 is connected to the first mounting plate 6221, one end of the third mounting plate 6223 is connected to the other end of the second mounting plate 6222, one end of the elastic member 6234 is connected to the other end of the third mounting plate 6223, and the second mounting member 6233 can slide along the second mounting plate 6222.

[0078] Preferably, the second clamping mechanism 62 further includes a guide assembly 624, which is disposed between the first mounting member 622 and the second mounting member 6233. The guide assembly 624 includes a guide rail 6241 and a slider 6242. The guide rail 6241 is disposed on the second mounting plate 6222 and extends along the Y direction. The slider 6242 is mounted on the first mounting member 622 and is slidably connected to the guide rail 6241. This arrangement ensures that the second mounting member 6233 maintains a single direction when sliding along the second mounting plate 6222, preventing the second mounting member 6233 from deflecting during movement, which could result in the second clamping member 6231 being misaligned.

[0079] The following combination Figure 1-Figure 5 The working process of battery welding equipment is introduced. Figure 1-Figure 5As shown, first, the third driving member drives the transmission member 51 so that the positioning seat 10 with the battery 200 on one of the workstations 511 is rotated to the welding position, the fourth driving member 611 drives the first clamping member 612 to move toward the battery 200 so that the first clamping member 612 stops at the preset position, and the magnetic member absorbs the winding core 210. The fifth driving member 621 drives the second clamping member 6231 to move toward the battery 200. After the rubber sleeve 6232 contacts the winding core 210, the fifth driving member 621 continues to extend, and the elastic member 6234 is compressed to provide a clamping force to the winding core 210. Here, the fourth driving member 611 and the fifth driving member 62 1 is not limited in sequence; then, the second driving member 41 drives the guide member 42 to move upward to the bottom of the winding core 210 to support the winding core 120. At this time, the lifting member 32 has not completely separated from the guide member 42. The first driving member 31 drives the lifting member 32 to move along the X direction and insert into the central hole, lifting the pole 220 so that the pole 220 abuts against the recessed area of ​​the busbar. The dust removal device 80 and the protective gas device are always working, and the welding device emits a laser to weld the pole 220 to the busbar; after the welding is completed, each driving member is reset, and the next workstation 511 is transferred to the welding position, and this reciprocating process is repeated.

[0080] This embodiment also provides a battery production line, which can improve the welding quality of the battery 200 and the production efficiency of the battery 200 by adopting the above-mentioned battery welding equipment.

[0081] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Battery welding equipment, wherein the battery (200) comprises a winding core (210) and a pole (220) connected to each other, wherein a central small hole extending in the axial direction is formed at the bottom of the winding core (210), characterized in that: The battery welding equipment includes: A welding device for welding the pole (220) and the busbar; A positioning seat (10) is arranged below the welding device, and a positioning groove (11) is provided on the positioning seat (10) for positioning the battery (200); and The lifting device (30) comprises a first driving member (31) and a lifting member (32), wherein the lifting member (32) is connected to the first driving member (31) in a transmission manner and can face the central hole, and the first driving member (31) is configured to drive the lifting member (32) to move along a first direction so that the lifting member (32) extends into the central hole and lifts the pole (220) to press against the busbar.

2. The battery welding equipment according to claim 1, characterized in that: The battery welding device further comprises a guide device (40), wherein the guide device (40) comprises: a second driving member (41), the second driving member (41) being mounted on the frame (20); and The guide member (42) is transmission-connected to the output end of the second driving member (41), and the second driving member (41) is configured to drive the guide member (42) to move along the first direction. A through hole is provided on the guide member (42), and the through hole can be directly opposite to the central hole. The lifting member (32) can slide relative to the guide member (42) along the through hole.

3. The battery welding equipment according to claim 2, characterized in that: The battery welding equipment further includes a transmission device, which includes: a third drive member; and A transmission member (51) is connected to the output end of the third driving member in a transmission manner. A plurality of workstations (511) are provided on the transmission member (51), and the workstations (511) are used to install the positioning seat (10). The third driving member is configured to drive the transmission member (51) to move and drive the plurality of workstations (511) to intermittently move.

4. The battery welding equipment according to claim 3, characterized in that: The battery welding device further comprises a secondary positioning device (60), wherein the secondary positioning device (60) comprises: a first clamping mechanism (61) disposed on the frame (20) and on one side of the transmission member (51); the first clamping mechanism (61) comprises a fourth driving member (611) and a first clamping member (612); the fourth driving member (611) is disposed on the frame (20); the first clamping member (612) is in transmission connection with an output end of the fourth driving member (611); the first clamping member (612) faces a side of the battery (200) and is adapted in shape to the battery (200); and A second clamping mechanism (62) is arranged on the frame (20) and on the other side of the transmission member (51); the first clamping member (612) and the second clamping mechanism (62) can jointly clamp the battery (200).

5. The battery welding equipment according to claim 4, characterized in that: The second clamping mechanism (62) comprises: a fifth driving member (621) mounted on the frame (20); A first mounting member (622) is drivingly connected to the output end of the fifth driving member (621); The clamping assembly (623) includes a second clamping member (6231) and a rubber sleeve (6232). The second clamping member (6231) is transmission-connected to the first mounting member (622). The rubber sleeve (6232) is sleeved on the second clamping member (6231) and can abut against the winding core (210).

6. The battery welding equipment according to claim 5, characterized in that: The clamping assembly (623) further comprises: a second mounting member (6233), the second mounting member (6233) being capable of sliding relative to the first mounting member (622) along a second direction, the second clamping member (6231) being mounted on one end of the second mounting member (6233), the second direction being arranged at an angle to the first direction; and The elastic member (6234) has one end connected to the first mounting member (622) and the other end connected to the other end of the second mounting member (6233).

7. The battery welding equipment according to claim 6, characterized in that: The first mounting member (622) comprises: A first mounting plate (6221) is provided at the output end of the fifth driving member (621); A second mounting plate (6222), one end of which is connected to the first mounting plate (6221); and One end of the third mounting plate (6223) is connected to the other end of the second mounting plate (6222); one end of the elastic member (6234) is connected to the other end of the third mounting plate (6223), and the second mounting member (6233) can slide along the second mounting plate (6222).

8. The battery welding equipment according to claim 7, characterized in that: The second clamping mechanism (62) further comprises a guide assembly (624), wherein the guide assembly (624) is arranged between the first mounting member (622) and the second mounting member (6233), and the guide assembly (624) comprises: a guide rail (6241) disposed on the second mounting plate (6222) and extending along the second direction; and The slider (6242) is mounted on the second mounting member (6233) and is connected to the guide rail (6241) in a sliding manner.

9. The battery welding equipment according to any one of claims 1 to 8, characterized in that: The battery welding equipment also includes: a shielding gas device, arranged below the welding device and used for spraying shielding gas onto the pole (220) and the busbar; and The dust removal device (80) is used to absorb the dust generated by welding.

10. Battery production line, characterized in that, Comprising the battery welding equipment according to any one of claims 1 to 9.

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