Welding base and ultrasonic welding device

Abstract

The utility model relates to a welding base and an ultrasonic welding device.The welding base comprises a main body, first sliding rows and second sliding rows, a first mounting groove is formed in the main body, and the multiple first sliding rows and the multiple second sliding rows are sequentially mounted in the first mounting groove in a staggered mode; the plurality of first sliding rows and the plurality of second sliding rows are used for placing battery cells on the first sliding rows and the second sliding rows so as to weld tabs; the first sliding row and the second sliding row can slide in the first direction, the sliding direction of the first sliding row is opposite to the sliding direction of the second sliding row, and the first direction is the length direction or the width direction of the welding base. In the application, after the welding is completed, the first sliding row and the second sliding row slide along the opposite directions, so that the tabs adhered to the welding plane can be separated from the welding plane, and the acting forces of the adjacent first sliding row and the second sliding row on the tabs are opposite in direction and can be mutually counteracted, so that the pulling degree on the tabs is relatively small; the tabs cannot be damaged, and the separation efficiency is relatively high.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of tab welding, and in particular to a welding base and an ultrasonic welding device. BACKGROUND

[0002] In the production process of an electric core, the tab of the electric core and a tab connecting piece are generally welded together through ultrasonic welding. In the welding process, if the tab connecting piece is upward, a large amount of metal chips will be generated, and the metal chips may enter the electric core to cause the electric core to be scrapped; if the tab connecting piece is downward, the tab connecting piece is easy to be bonded to the welding base, and the electric core is easy to be damaged when the electric core is directly taken off from the welding base. CONTENT OF THE UTILITY MODEL

[0003] The application provides a welding base and an ultrasonic welding device, and aims to solve the problem that the tab is easy to be damaged when the electric core is taken off from the welding base.

[0004] The welding base provided by the application comprises a main body, a first sliding row and a second sliding row, a first mounting groove is arranged on the main body, a plurality of first sliding rows and a plurality of second sliding rows are sequentially and staggeredly arranged in the first mounting groove, and the plurality of first sliding rows and the plurality of second sliding rows are used for placing the electric core thereon to weld the tab.

[0005] The first sliding row and the second sliding row can slide in a first direction, the sliding direction of the first sliding row is opposite to the sliding direction of the second sliding row, and the first direction is the length direction or the width direction of the welding base.

[0006] In a possible design, the welding base further comprises a transmission rod and a driving part, a second mounting groove is arranged on the main body, the transmission rod is arranged in the second mounting groove, the driving part can drive the transmission rod to slide in a second direction, and the second direction has an included angle with the first direction.

[0007] The transmission rod comprises a rod body, a first pushing block and a second pushing block arranged on the rod body, the first pushing block has a first pushing surface which is inclined relative to the second direction, and the second pushing block has a second pushing surface which is inclined relative to the second direction.

[0008] When the transmission rod slides in the second direction, the first pushing surface pushes the first sliding row to slide in the first direction, and the second pushing surface pushes the second sliding row to slide in the first direction.

[0009] In a possible design, one side of the first sliding row, which faces the first mounting groove, is provided with a first matching groove, and one side of the second sliding row, which faces the first mounting groove, is provided with a second matching groove.

[0010] Along the second direction, the first pushing blocks and the second pushing blocks are staggered on the rod body, the first pushing blocks are matched with the first matching grooves, and the second pushing blocks are matched with the second matching grooves.

[0011] In a possible design, the first pushing face and the second pushing face are opposite to each other in a direction inclined to the second direction.

[0012] The extending direction of the first matching groove and the extending direction of the second matching groove are opposite to each other in a direction inclined to the second direction.

[0013] In a possible design, the angle between the first pushing face and the second direction is equal to the angle between the second pushing face and the second direction.

[0014] The angle between the extending direction of the first matching groove and the second direction is equal to the angle between the extending direction of the second matching groove and the second direction.

[0015] In a possible design, the angle between the first pushing face and the second direction is equal to the angle between the extending direction of the first matching groove and the second direction.

[0016] The angle between the second pushing face and the second direction is equal to the angle between the extending direction of the second matching groove and the second direction.

[0017] In a possible design, the length of the first pushing block is shorter than the length of the first matching groove, and the length of the second pushing block is shorter than the length of the second matching groove.

[0018] In a possible design, there is a gap between adjacent first pushing blocks and second pushing blocks.

[0019] In a possible design, a plurality of rolling balls are rotationally connected to the sidewall of the first matching groove and / or the second matching groove, and the rolling balls can contact the first pushing blocks and / or the second pushing blocks.

[0020] In a possible design, a plurality of protruding first welding teeth are arranged on the side, away from the first mounting groove, of the first sliding row, a plurality of protruding second welding teeth are arranged on the side, away from the first mounting groove, of the second sliding row, and the first welding teeth and the second welding teeth are used to contact the battery cell.

[0021] The ultrasonic welding device provided by the embodiment of the present application comprises the welding base.

[0022] In this application, adjacent first and second sliding blocks are arranged side by side, and the upper surfaces of multiple first sliding blocks and multiple second sliding blocks together form a welding plane. The electrode tabs of the battery cell can be welded under the support of the welding plane. The electrode tabs of the battery cell are simultaneously supported by several first and second sliding blocks. After welding, by sliding the first and second sliding blocks in opposite directions, the electrode tabs that are adhered to the welding plane can be separated from the welding plane. Since the forces exerted on the electrode tabs by adjacent first and second sliding blocks are in opposite directions, they can cancel each other out. Therefore, the pulling force on the electrode tabs is small, the electrode tabs will not be damaged, and the separation efficiency is high.

[0023] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of the welding base provided in this application in a specific embodiment;

[0025] Figure 2 for Figure 1 A schematic diagram of the main structure;

[0026] Figure 3 for Figure 1 A schematic diagram of the transmission rod and drive unit;

[0027] Figure 4 for Figure 1 A schematic diagram of the structure of the first sliding block;

[0028] Figure 5 for Figure 1 A schematic diagram of the structure of the second sliding row;

[0029] Figure 6 for Figure 1 Another structural diagram of the first and second sliding blocks;

[0030] Figure 7 for Figure 6 A magnified view of a portion of region I;

[0031] Figure 8 for Figure 1 A cross-sectional view of the first and second sliding blocks in conjunction with the push rod;

[0032] Figure 9 for Figure 8 A magnified view of a portion of region II.

[0033] Figure label:

[0034] 1-Main body;

[0035] 11 - first mounting slot;

[0036] 12 - second mounting slot;

[0037] 2 - first sliding row;

[0038] 21 - first matching slot;

[0039] 22 - first welding tooth;

[0040] 3 - second sliding row;

[0041] 31 - second matching slot;

[0042] 32 - second welding tooth;

[0043] 4 - transmission rod;

[0044] 41 - first pushing block;

[0045] 411 - first pushing surface;

[0046] 42 - second pushing block;

[0047] 421 - second pushing surface;

[0048] 43 - rod body;

[0049] 5 - driving part;

[0050] 6 - ball.

[0051] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application. DETAILED DESCRIPTION

[0052] For a better understanding of the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the drawings.

[0053] It should be clear that the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0054] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0055] It should be understood that the term "and / or" used herein is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing alone, A and B existing together, and B existing alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0056] It should be noted that the terms "upper", "lower", "left", "right" and the like described in the embodiments of the present application are described from the angle shown in the drawings, and should not be understood as a limitation on the embodiments of the present application. In addition, in the context, it should also be understood that when referring to an element connected to another element "on" or "under", it can be directly connected to another element "on" or "under" or indirectly connected to another element "on" or "under" through an intermediate element.

[0057] The embodiments of the present application provide a welding base, such as Figure 1 and Figure 2 As shown, the welding base comprises a main body 1, a first sliding row 2 and a second sliding row 3, the main body 1 is provided with a first mounting groove 11, a plurality of first sliding rows 2 and a plurality of second sliding rows 3 are installed in the first mounting groove 11 in turn and staggered, and the plurality of first sliding rows 2 and the plurality of second sliding rows 3 are used to place the battery cell thereon for welding the tab; the first sliding row 2 and the second sliding row 3 can slide along the first direction X, and the sliding direction of the first sliding row 2 and the sliding direction of the second sliding row 3 are opposite.

[0058] Among them, the first direction X has two directions which are parallel and opposite, in order to facilitate description, it is defined that the right direction as shown in Figure 1 is the positive direction of the first direction X, and it is defined that the left direction as shown in Figure 1 is the reverse direction of the first direction X.

[0059] In the embodiments, as shown in Figure 1 and Figure 2 , the adjacent first sliding row 2 and second sliding row 3 are arranged side by side, the upper surfaces of the plurality of first sliding rows 2 and the upper surfaces of the plurality of second sliding rows 3 jointly form a welding plane, and the tabs of the battery cell can be supported by the welding plane for welding. The tabs of the battery cell will be supported by several first sliding rows 2 and second sliding rows 3 at the same time, after the welding is completed, by making the first sliding row 2 and the second sliding row 3 slide in opposite directions, the tabs adhered to the welding plane can be separated from the welding plane, and because the directions of the forces of the adjacent first sliding row 2 and the second sliding row 3 on the tabs are opposite, they can offset each other, so the degree of pulling the tabs is small, and the tabs will not be damaged, and the separation efficiency is high.

[0060] Preferably, the first direction X is the length direction of the welding base, when the first sliding rows 2 and the second sliding rows 3 are installed in the first installation slots 11, the length direction of the first sliding rows 2 is parallel to the length direction of the welding base, and the length direction of the second sliding rows 3 is parallel to the length direction of the welding base, that is, the plurality of first sliding rows 2 and the second sliding rows 3 are arranged side by side in the width direction of the welding base.

[0061] It can be understood that in some other embodiments, the first direction X can also be the width direction of the welding base, that is, the plurality of first sliding rows 2 and the second sliding rows 3 are arranged side by side in the length direction of the welding base.

[0062] Further, as shown in Figures 1 to 3 , the welding base further comprises a transmission rod 4 and a driving part 5, the main body 1 is provided with a second installation slot 12, the transmission rod 4 is installed in the second installation slot 12, and the driving part 5 can drive the transmission rod 4 to slide along the second direction Y, the second direction Y and the first direction X have an included angle; the transmission rod 4 comprises a rod body 43 and a first pushing block 41 and a second pushing block 42 provided on the rod body 43, the first pushing block 41 has a first pushing surface 411 inclined relative to the second direction Y, and the second pushing block 42 has a second pushing surface 421 inclined relative to the second direction Y; when the transmission rod 4 slides along the second direction Y, the first pushing surface 411 pushes the first sliding row 2 to slide along the first direction X, and the second pushing surface 421 pushes the second sliding row 3 to slide along the first direction X.

[0063] Among them, the first pushing block 41 and the second pushing block 42 are fixedly connected with the rod body 43, that is, when the transmission rod 4 slides along the second direction Y, the positions of the first pushing block 41 and the second pushing block 42 relative to the rod body 43 do not change. The driving part 5 can be a motor, the output shaft of the motor is connected with the transmission rod 4, and the motor drives the transmission rod 4 to move along the second direction Y through the output shaft, at this time the first pushing surface 411 can apply an action force to the first sliding row 2 to make the first sliding row 2 slide along the first direction X, and the second pushing surface 421 can apply an action force to the second sliding row 3 to slide along the first direction X.

[0064] Preferably, the second direction Y is perpendicular to the first direction X, and the second installation slot 12 penetrates the main body 1 along the second direction Y, so as to facilitate the installation of the transmission rod 4 into the second installation slot 12.

[0065] It can be understood that in some other embodiments, the sliding of the first sliding row 2 and the second sliding row 3 along the first direction X can also be realized manually by workers.

[0066] Specifically, as shown in Figure 4 and Figure 5As shown, the first sliding row 2 is provided with a first matching groove 21 on the side facing the first mounting groove 11, and the second sliding row 3 is provided with a second matching groove 31 on the side facing the first mounting groove 11; along the second direction Y, the first pushing block 41 and the second pushing block 42 are staggered on the rod body 43, the first pushing block 41 matches the first matching groove 21, and the second pushing block 42 matches the second matching groove 31.

[0067] The depth of the second mounting groove 12 is greater than that of the first mounting groove 11, when the transmission rod 4 is installed into the second mounting groove 12, the upper surface of the rod body 43 is flush with or lower than the bottom surface of the first mounting groove 11, so that at least part of the first pushing block 41 and the second pushing block 42 protrude from the bottom surface of the first mounting groove 11, realizing the matching of the first pushing block 41 and the first matching groove 21, and the matching of the second pushing block 42 and the second matching groove 31, and the rod body 43 does not interfere with the sliding of the first sliding row 2 and the second sliding row 3.

[0068] More specifically, as shown in Figure 3 The first pushing surface 411 and the second pushing surface 421 are opposite in the direction of inclination relative to the second direction Y; as shown in Figure 6 The extension direction of the first matching groove 21 and the extension direction of the second matching groove 31 are opposite in the direction of inclination relative to the second direction Y.

[0069] When the transmission rod 4 slides along the second direction Y, the first pushing block 41 pushes the first sliding row 2 to move along the positive direction or the negative direction of the first direction X by matching with the first matching groove 21, and the second pushing block 42 pushes the second sliding row 3 to move along the negative direction or the positive direction of the first direction X by matching with the second matching groove 31, so as to realize the driving of the first sliding row 2 and the second sliding row 3 to slide in opposite directions by the transmission rod 4, and further realize the automatic separation of the lug and the welding plane without manual operation, thereby reducing the labor cost.

[0070] Preferably, the angle between the first pushing surface 411 and the second direction Y is equal to the angle between the second pushing surface 421 and the second direction Y; the angle between the extension direction of the first matching groove 21 and the second direction Y is equal to the angle between the extension direction of the second matching groove 31 and the second direction Y.

[0071] Therefore, when the transmission rod 4 moves along the second direction Y, the first sliding row 2 and the second sliding row 3 move the same distance along the first direction X, so that the effect of the adjacent first sliding row 2 and the second sliding row 3 on the lug is better offset, further reducing the probability of damage to the lug.

[0072] Preferably, the angle between the first pushing surface 411 and the second direction Y is equal to the angle between the extension direction of the first matching groove 21 and the second direction Y, and the angle between the second pushing surface 421 and the second direction Y is equal to the angle between the extension direction of the second matching groove 31 and the second direction Y, so that the first pushing block 41 can better adapt to the first matching groove 21, the second pushing block 42 can better adapt to the second matching groove 31, and the movement of the transmission rod 4 driving the first sliding row 2 and the second sliding row 3 is more stable.

[0073] In a specific embodiment, as shown in Figure 8 and Figure 9 , the length of the first pushing block 41 is shorter than the length of the first matching groove 21, and the length of the second pushing block 42 is shorter than the length of the second matching groove 31, so that the first pushing block 41 can slide in the first matching groove 21, and the second pushing block 42 can slide in the second matching groove 31. It can be understood that, since the first sliding row 2 and the second sliding row 3 respectively slide in the positive and negative directions of the first direction X for a small distance to achieve the separation of the welding plane and the tab, therefore, the length of the first matching groove 21 is slightly larger than the length of the first pushing block 41, and the length of the second matching groove 31 is slightly larger than the length of the second pushing block 42. In addition, the length of the first mounting groove 11 also needs to be slightly larger than the length of the first sliding row 2 and the length of the second sliding row 3, so that the first sliding row 2 and the second sliding row 3 can slide in the first mounting groove 11.

[0074] Specifically, as shown in Figure 3 , there is a gap between adjacent first pushing block 41 and second pushing block 42, so as to prevent the first pushing block 41 from interfering with the second sliding row 3, and the second pushing block 42 from interfering with the first sliding row 2.

[0075] Further, as shown in Figure 7 , a plurality of rolling balls 6 are rotatably connected to the side wall of the first matching groove 21 and / or the second matching groove 31, and the plurality of rolling balls 6 can contact the first pushing block 41 and / or the second pushing block 42. The rolling balls 6 can reduce the friction between the transmission rod 4 and the first sliding row 2 and the second sliding row 3, reduce the loss of the first sliding row 2 and the second sliding row 3, and prolong the service life of the welding base.

[0076] Preferably, the first matching groove 21 is arranged at the middle position of the first sliding row 2 along the length direction of the first sliding row 2, and the second matching groove 31 is arranged at the middle position of the second sliding row 3 along the length direction of the second sliding row 3, so that the transmission rod 4 can easily push the first sliding row 2 and the second sliding row 3 to slide. It can be understood that the first matching groove 21 can be arranged at a position deviating from the middle position of the first sliding row 2 along the length direction of the first sliding row 2, and the second matching groove 31 can be arranged at a position deviating from the middle position of the second sliding row 3 along the length direction of the second sliding row 3.

[0077] Preferably, the side of the first sliding row 2 deviating from the first mounting groove 11 is provided with a plurality of protruding first welding teeth 22, and the side of the second sliding row 3 deviating from the first mounting groove 11 is provided with a plurality of protruding second welding teeth 32, and the first welding teeth 22 and the second welding teeth 32 are used to contact the electrode. The first welding teeth 22 and the second welding teeth 32 are protruding, which can reduce the contact area of the tab and the welding plane, thereby reducing the adhesion area of the tab and the welding plane after welding, and reducing the difficulty of separating the tab and the welding plane. Wherein, the welding plane refers to the plane where the vertices of the first welding teeth 22 and the second welding teeth 32 are located.

[0078] The embodiment of the present application also provides an ultrasonic welding device, which comprises the above welding base and a transmission source. The transmission source can emit ultrasonic waves to weld the tab on the welding base, and the separation of the tab and the welding base after welding can be automatically completed by the welding base, so as to improve the success rate of obtaining intact tabs after welding tabs, and the efficiency is relatively high.

[0079] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A welding base characterized by, The welding base comprises a main body (1), a first sliding row (2) and a second sliding row (3), the main body (1) is provided with a first mounting groove (11), a plurality of first sliding rows (2) and a plurality of second sliding rows (3) are sequentially and alternately mounted in the first mounting groove (11), and the plurality of first sliding rows (2) and the plurality of second sliding rows (3) are used for placing the battery cell thereon to weld the tab; The first sliding row (2) and the second sliding row (3) can slide in a first direction (X), and the sliding direction of the first sliding row (2) is opposite to the sliding direction of the second sliding row (3); The first direction (X) is the length direction or the width direction of the welding base.

2. The welding pedestal of claim 1, wherein, The welding base further comprises a transmission rod (4) and a driving part (5), the main body (1) is provided with a second mounting groove (12), the transmission rod (4) is mounted in the second mounting groove (12), and the driving part (5) can drive the transmission rod (4) to slide in a second direction (Y), and the second direction (Y) has an included angle with the first direction (X); The transmission rod (4) comprises a rod body (43) and a first pushing block (41) and a second pushing block (42) arranged on the rod body (43), the first pushing block (41) has a first pushing surface (411) inclined relative to the second direction (Y), and the second pushing block (42) has a second pushing surface (421) inclined relative to the second direction (Y); When the transmission rod (4) slides in the second direction (Y), the first pushing surface (411) pushes the first sliding row (2) to slide in the first direction (X), and the second pushing surface (421) pushes the second sliding row (3) to slide in the first direction (X).

3. The welding base of claim 2, wherein, The first sliding row (2) is provided with a first matching groove (21) on one side facing the first mounting groove (11), and the second sliding row (3) is provided with a second matching groove (31) on one side facing the first mounting groove (11); In the second direction (Y), the first pushing block (41) and the second pushing block (42) are alternately arranged on the rod body (43), the first pushing block (41) matches the first matching groove (21), and the second pushing block (42) matches the second matching groove (31).

4. The welding base of claim 3, wherein, The first pushing surface (411) and the second pushing surface (421) are opposite in the direction of inclination relative to the second direction (Y); The extension direction of the first matching groove (21) and the extension direction of the second matching groove (31) are opposite in the direction of inclination relative to the second direction (Y).

5. The welding base of claim 4, wherein, The included angle between the first pushing surface (411) and the second direction (Y) is equal to the included angle between the second pushing surface (421) and the second direction (Y); The included angle between the extension direction of the first matching groove (21) and the second direction (Y) is equal to the included angle between the extension direction of the second matching groove (31) and the second direction (Y).

6. The welding base of claim 4, wherein, An angle between the first pushing surface (411) and the second direction (Y) is equal to an angle between an extending direction of the first matching groove (21) and the second direction (Y); An angle between the second pushing surface (421) and the second direction (Y) is equal to an angle between an extending direction of the second matching groove (31) and the second direction (Y).

7. The welding pedestal of claim 3, wherein, A length of the first pushing block (41) is shorter than a length of the first matching groove (21), and a length of the second pushing block (42) is shorter than a length of the second matching groove (31).

8. The welding base of claim 3, wherein, There is a gap between the first pushing block (41) and the second pushing block (42).

9. The welding base of claim 3, wherein, A plurality of rolling balls (6) are rotationally connected to sidewalls of the first matching groove (21) and / or the second matching groove (31), and the rolling balls (6) can contact the first pushing block (41) and / or the second pushing block (42).

10. The solder mount of any of claims 1-9, wherein, A side, away from the first mounting groove (11), of the first sliding row (2) is provided with a plurality of protruding first welding teeth (22), and a side, away from the first mounting groove (11), of the second sliding row (3) is provided with a plurality of protruding second welding teeth (32), and the first welding teeth (22) and the second welding teeth (32) are used to contact the battery cell.

11. An ultrasonic welding device characterized by comprising: The ultrasonic welding device comprises the welding base according to any one of claims 1 to 10.

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