Battery welding equipment

Abstract

The utility model provides battery welding equipment, which is used for welding and fixing a cover plate and a battery cell and comprises a welding platform arranged on a working table, a welding bearing cavity is arranged on the welding platform and comprises at least two abutting side walls, and when the battery cell is placed in the welding bearing cavity, the battery cell is welded on the welding bearing cavity through the abutting side walls. At least one side wall of the battery cell is propped against the propping side wall; when the cover plate is placed in the welding bearing cavity, at least two side walls of the cover plate abut against the abutting side walls of the welding bearing cavity. The cover plate pressing and fixing piece comprises a pressing and fixing part capable of moving in the vertical direction, the pressing and fixing part can be connected with the cover plate in an abutting mode, an abutting face is arranged on the pressing and fixing part, and when the battery cell is placed in the welding bearing cavity, a tab on the battery cell can be connected with the abutting face in an abutting mode; the battery has the advantages that the pressing and fixing part for fixing the cover plate is used for assisting in positioning the battery cell, so that enough welding area is reserved between the tab and the cover plate, and the tab and the cover plate can be stably connected.

Description

Technical Field

[0001] This utility model belongs to the field of production equipment technology and relates to a battery welding device. Background Technology

[0002] In modern battery manufacturing, after the battery core is installed in the casing, the electrode tabs are welded to the cover assembly, which then seals the opening in the casing. Currently, the welding of the electrode tabs to the cover assembly is entirely done manually. This method is inefficient, requires a large amount of manpower, and does not meet the requirements of modern production. Furthermore, manual processing makes it difficult to guarantee consistent product quality, and the product qualification rate is unlikely to reach ideal standards. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a semi-automatic, precisely positioned battery welding device.

[0004] The objective of this utility model can be achieved through the following technical solution: a battery welding device for welding and fixing a cover plate and a battery cell, comprising:

[0005] Work surface;

[0006] A welding platform is provided on the workbench surface. The welding platform is provided with a welding bearing cavity, which includes at least two abutting sidewalls. When the battery cell is placed in the welding bearing cavity, at least one sidewall of the battery cell abuts against the abutting sidewall. When the cover plate is placed in the welding bearing cavity, at least two sidewalls of the cover plate abut against the abutting sidewall of the welding bearing cavity.

[0007] The cover plate clamping component includes a clamping part that can move in the vertical direction. The clamping part can abut against the cover plate and has an abutting surface. When the battery cell is placed in the welding support cavity, the tabs on the battery cell can abut against the abutting surface.

[0008] Welding tools are used to weld and fix the tabs on the battery cell to the cover plate.

[0009] In the aforementioned battery welding equipment, the welding support cavity includes a cell placement area and a cover plate placement area, and in the vertical direction, the cover plate placement area is located below the cell placement area.

[0010] In the aforementioned battery welding equipment, the welding platform is provided with an insertion opening that communicates with the welding support cavity.

[0011] In the aforementioned battery welding equipment, when the battery cell is located within the welding support cavity, the two opposing sidewalls of the battery cell abut against the two abutting sidewalls of the welding support cavity.

[0012] In the aforementioned battery welding equipment, the pressing part includes a connecting plate that can move in the vertical direction, and a pressing block is detachably provided on the connecting plate, the pressing block being able to abut against and connect with the cover plate.

[0013] In the aforementioned battery welding equipment, a monitoring cavity is provided on the welding platform and communicates with the welding bearing cavity. A monitoring sensor is provided in the monitoring cavity to detect whether a cover plate is placed on the welding platform. The monitoring sensor is communicatively connected to the pressing part.

[0014] In the aforementioned battery welding equipment, the position of the welding platform on the worktable is adjustable.

[0015] In the aforementioned battery welding equipment, a shift plate is provided on the worktable, and the welding platform is located on the shift plate. A first threaded connection hole is provided on one of the worktable and the shift plate, and an adjustment hole is provided on the other. Fasteners pass through the first threaded connection hole and the adjustment hole and are connected to a nut to fix the shift plate to the worktable.

[0016] In the aforementioned battery welding equipment, the shift plate is provided with a second threaded connection hole, the welding platform is provided with a connecting part, the connecting part is provided with a waist-shaped hole, and the fastener passes through the waist-shaped hole and the second threaded connection hole and is connected to the nut to fix the shift plate and the welding platform; the length extension direction of the waist-shaped hole is perpendicular to the length extension direction of the adjustment hole.

[0017] In the aforementioned battery welding equipment, a connecting column is provided on the worktable, an adjusting screw extending vertically is rotatably mounted on the connecting column, a welding cylinder is provided on the connecting column, a connecting block is provided on the welding cylinder and threadedly connected to the adjusting screw, and the cylinder shaft of the welding cylinder is fixed to the welding tool.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: the semi-automatic welding equipment in this application can replace manual production, which can effectively improve welding production efficiency; and during the welding positioning process, the contact connection between the battery cell and the contact side wall of the welding bearing cavity, as well as the contact connection between the electrode tab on the battery cell and the contact surface, can achieve the accuracy of the relative positioning between the battery cell and the cover plate; and in this application, after the cover plate is positioned and fixed by the clamping part, that is, after the cover plate is firmly fixed in a predetermined position to ensure that the cover plate will not move, the battery cell is then inserted into the welding bearing cavity, and the clamping part used to fix the cover plate is used to assist in positioning the battery cell, ensuring that there is sufficient welding area between the electrode tab and the cover plate, and ensuring that the electrode tab and the cover plate can be stably connected. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of a partial structure;

[0021] Figure 3 This is a schematic diagram of the welding platform when it is not in use;

[0022] Figure 4 This is a schematic diagram showing the usage status of the welding platform.

[0023] In the figure, the workbench is 100; the welding platform is 200; the welding bearing cavity is 201; the abutting side wall is 202; the battery cell placement area is 203; the cover plate placement area is 204; the connecting plate is 205; the clamping part is 206; the abutting surface is 207; the clamping block is 208; the mounting base is 209; the moving base is 210; the clamping cylinder is 211; the monitoring cavity is 212; the monitoring sensor is 213; the fixing block is 214; the connecting column is 215; the adjusting screw is 216; the welding cylinder is 217; the adjusting handwheel is 218; the shifting plate is 300; the first threaded connection hole is 301; the adjusting hole is 302; the second threaded connection hole is 303; the connecting part is 304; the oblong hole is 305; the slide rail is 306; the welding host is 400; the welding tool is 401; the control box is 402; the cover plate is 500; and the battery cell is 501. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] like Figures 1-4 As shown, a battery welding device includes:

[0027] Work surface 100;

[0028] A welding platform 200 is disposed on a workbench 100. A welding bearing cavity 201 is disposed on the welding platform 200. The welding bearing cavity 201 includes at least two abutting sidewalls 202. When a battery cell 501 is placed in the welding bearing cavity 201, at least one sidewall of the battery cell 501 abuts against the abutting sidewall 202. When a cover plate 500 is placed in the welding bearing cavity 201, at least two sidewalls of the cover plate 500 abut against the abutting sidewalls 202 of the welding bearing cavity 201.

[0029] The cover plate clamping component includes a clamping part 206 that can move in the vertical direction. The clamping part 206 can abut against the cover plate 500, and the clamping part 206 is provided with an abutting surface 207. When the battery cell 501 is placed in the welding support cavity 201, the tabs on the battery cell 501 can abut against the abutting surface 207.

[0030] Welding tool 401 is used to weld and fix the tabs on the battery cell 501 to the cover plate 500.

[0031] In this embodiment, the use of the semi-automatic welding equipment described in this application to replace manual production can effectively improve welding production efficiency. Furthermore, during the welding positioning process, the contact connection between the battery cell 501 and the abutting sidewall 202 of the welding bearing cavity 201, as well as the contact connection between the electrode tab on the battery cell 501 and the abutting surface 207, ensures accurate relative positioning between the battery cell 501 and the cover plate 500. In this application, after the cover plate 500 is first positioned and fixed using the clamping part 206, ensuring it remains firmly in a predetermined position and does not move, the battery cell 501 is then inserted into the welding bearing cavity 201. The clamping part 206, which fixes the cover plate 500, assists in positioning the battery cell 501, ensuring sufficient welding area between the electrode tab and the cover plate 500, and guaranteeing a stable connection between them.

[0032] Specifically, the welding platform 200 is detachably connected to the worktable 100, and the welding platform 200 can be replaced with a suitable one according to the shape of the battery cell 501.

[0033] Preferably, the welding support cavity 201 includes a cell placement area 203 and a cover plate placement area 204, with the cover plate placement area 204 located below the cell placement area 203 in the vertical direction.

[0034] It is worth mentioning that, as an optional solution, the length and width of the cover plate placement area 204 are equal to the length and width of the cover plate 500. In this case, when the cover plate 500 is placed in the cover plate placement area 204, the cover plate 500 can be just locked in the cover plate placement area 204. When in use, the height difference between the cover plate 500 and the battery cell 501 is set so that the tabs on the battery cell 501 can extend above the cover plate 500.

[0035] To facilitate the placement of the cover plate 500 and the battery cell 501 into the preset position on the welding support cavity 201, the welding platform 200 is provided with an insertion opening that is connected to the welding support cavity 201. The cover plate 500 and the battery cell 501 can be inserted through the insertion opening, and then the battery cell 501 or the cover plate 500 can be pushed to move the battery cell 501 or the cover plate 500 within the welding support cavity 201.

[0036] It is worth mentioning that, in order to facilitate the placement of the cover plate 500 and the battery cell 501, an opening is also provided above the welding bearing cavity 201.

[0037] More preferably, when the battery cell is located in the welding support cavity 201, the two opposite sidewalls on the battery cell abut against the two abutting sidewalls 202 of the welding support cavity 201.

[0038] In this embodiment, the contact connection between the abutting sidewall 202 of the welding support cavity 201 and the sidewall of the battery cell 501 enables precise placement of the battery cell 501 within the welding support cavity 201. The opposing sidewalls of the battery cell 501 abut against the two abutting sidewalls 202 of the welding support cavity 201, thereby limiting the direction of movement of the battery cell 501. This allows the battery cell 501 to be precisely placed within the welding support cavity 201 simply by pushing it forward until it contacts and connects with the pressing part 206 after it has been placed in the welding support cavity 201.

[0039] Specifically, the clamping part 206 includes a connecting plate 205 that can move in the vertical direction, and a clamping block 208 is detachably provided on the connecting plate 205. The clamping block 208 can be connected to the cover plate 500 in abutment.

[0040] In this embodiment, a mounting base 209 is detachably provided on the workbench 100. A movable base 210 that can be adjusted in the vertical direction is provided on the mounting base 209. A clamping cylinder 211 is fixedly provided on the movable base 210. A connecting plate 205 is provided on the cylinder shaft of the clamping cylinder 211, so that the connecting plate 205 can move in the vertical direction. The clamping block 208 that is detachably provided with the connecting plate 205 can be replaced according to the matching cover plate product.

[0041] Preferably, the welding platform 200 is provided with a monitoring cavity 212 that communicates with the welding bearing cavity 201. The monitoring cavity 212 is provided with a monitoring sensor 213 for detecting whether a cover plate is placed on the welding platform 200. The monitoring sensor 213 is communicatively connected to the pressing part 206.

[0042] In this embodiment, the monitoring sensor 213 includes an optical fiber sensor that extends into the monitoring cavity 212. The opening of the monitoring cavity 212 is connected to the cover plate placement area 204. When the cover plate is placed, the optical fiber sensor acquires a trigger signal and transmits it to the control system. The control system controls the pressing cylinder 211 to move, thereby pressing the cover plate. The welding platform 200 is provided with a detachable fixing block 214, and the optical fiber sensor is fixedly connected to the fixing block 214.

[0043] It is worth mentioning that the workbench 100 is also equipped with a welding host 400 and a welding tool 401 that are connected in communication to control the welding tool 401. The welding host 400 is also equipped with a control box 402 that is connected in communication to the fiber optic sensor and the pressure cylinder 211.

[0044] Further preferably, the position of the welding platform 200 on the worktable 100 is adjustable.

[0045] Specifically, a shift plate 300 is provided on the workbench 100, and the welding platform 200 is located on the shift plate 300. One of the workbench 100 and the shift plate 300 is provided with a first threaded connection hole 301, and the other is provided with an adjustment hole 302. Fasteners pass through the first threaded connection hole 301 and the adjustment hole 302 and are connected to a nut to fix the shift plate 300 to the workbench 100.

[0046] In this embodiment, the position of the welding platform 200 on the worktable 100 is adjustable. The position of the welding platform 200 on the worktable 100 can be adjusted according to different welding positions. As an optional solution, the worktable 100 is provided with a first threaded connection hole 301, and the shift plate 300 is provided with a U-shaped adjustment hole 302. When it is necessary to adjust the position of the welding platform 200, the connection between the nut and the fastener is loosened. The fastener remains stationary while the shift plate 300 is moved, so that the relative position of the fastener in the U-shaped adjustment hole 302 changes.

[0047] In a further preferred embodiment, the shift plate 300 is provided with a second threaded connection hole 303, the welding platform 200 is provided with a connecting part 304, the connecting part 304 is provided with a waist-shaped hole 305, the fastener passes through the waist-shaped hole 305 and the second threaded connection hole 303 and then connects with the nut to fix the shift plate 300 and the welding platform 200; the length extension direction of the waist-shaped hole 305 is perpendicular to the length extension direction of the adjustment hole 302.

[0048] In this embodiment, the shift plate 300 can move horizontally relative to the worktable 100, while the welding platform 200 can move vertically relative to the shift plate 300. The two work together to achieve horizontal movement of the welding platform 200 in two-dimensional space.

[0049] It is worth mentioning that the welding platform 200 is equipped with a slider, while the shift plate 300 is equipped with a slide rail 306. The slider and the slide rail 306 slide together to achieve longitudinal movement guidance.

[0050] In a further preferred embodiment, a connecting column 215 is provided on the worktable 100, an adjusting screw 216 extending vertically is rotatably provided on the connecting column 215, a welding cylinder 217 is provided on the connecting column 215, a connecting block is provided on the welding cylinder 217 and threadedly connected to the adjusting screw 216, and the cylinder shaft of the welding cylinder 217 is fixed to the welding tool 401.

[0051] It is worth mentioning that an adjusting handwheel 218 is fixedly installed at the upper end of the adjusting screw 216. Rotating the adjusting handwheel 218 will drive the adjusting screw 216 to rotate, so that the height of the welding cylinder 217 in the vertical direction can be adjusted.

[0052] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0054] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A battery welding apparatus for welding and fixing a cover plate to a battery cell, characterized by, include: Work surface; A welding platform is provided on the workbench surface. The welding platform is provided with a welding bearing cavity, which includes at least two abutting sidewalls. When the battery cell is placed in the welding bearing cavity, at least one sidewall of the battery cell abuts against the abutting sidewall. When the cover plate is placed in the welding bearing cavity, at least two sidewalls of the cover plate abut against the abutting sidewall of the welding bearing cavity. The cover plate clamping component includes a clamping part that can move in the vertical direction. The clamping part can abut against the cover plate and has an abutting surface. When the battery cell is placed in the welding support cavity, the tabs on the battery cell can abut against the abutting surface. Welding tools are used to weld and fix the tabs on the battery cell to the cover plate.

2. A battery welding apparatus as defined in claim 1, wherein The welding support cavity includes a cell placement area and a cover plate placement area. In the vertical direction, the cover plate placement area is located below the cell placement area.

3. The battery welding apparatus of claim 1, wherein, The welding platform is provided with an insertion opening that communicates with the welding support cavity.

4. The battery welding apparatus of claim 1, wherein, When the battery cell is located in the welding support cavity, the two opposite sidewalls of the battery cell abut against the two abutting sidewalls of the welding support cavity.

5. The battery welding apparatus of claim 1, wherein, The clamping part includes a connecting plate that can move in the vertical direction, and a clamping block is detachably provided on the connecting plate, the clamping block being able to abut against the cover plate.

6. A battery welding apparatus as defined in claim 5, wherein, The welding platform is provided with a monitoring cavity that communicates with the welding bearing cavity. The monitoring cavity is provided with a monitoring sensor for detecting whether a cover plate is placed on the welding platform. The monitoring sensor is communicatively connected to the pressing part.

7. The battery welding apparatus of claim 1, wherein, The position of the welding platform on the workbench is adjustable.

8. A battery welding apparatus as defined in claim 7, wherein, A shift plate is provided on the workbench, and the welding platform is located on the shift plate. A first threaded connection hole is provided on one of the workbench and the shift plate, and an adjustment hole is provided on the other. Fasteners pass through the first threaded connection hole and the adjustment hole and are connected to a nut to fix the shift plate to the workbench.

9. A battery welding apparatus as defined in claim 8, wherein, The shift plate is provided with a second threaded connection hole, and the welding platform is provided with a connecting part. The connecting part is provided with a waist-shaped hole. The fastener passes through the waist-shaped hole and the second threaded connection hole and is connected to the nut to fix the shift plate and the welding platform. The length extension direction of the waist-shaped hole is perpendicular to the length extension direction of the adjustment hole.

10. The battery welding apparatus of claim 1, wherein, A connecting column is provided on the workbench, and an adjusting screw extending vertically is rotatably mounted on the connecting column. A welding cylinder is provided on the connecting column, and a connecting block is provided on the welding cylinder and threadedly connected to the adjusting screw. The cylinder shaft of the welding cylinder is fixed to the welding tool.

Images