New energy cell current collector pre-welding rapid positioning clamp

Abstract

The utility model discloses a new energy cell current collector prewelding fast positioning clamp, which comprises a bottom plate and a supporting plate, the supporting plate is used for placing a cell, one end of the supporting plate is provided with a limiting plate, a displacement assembly is arranged between the bottom plate and the supporting plate, two sides of the displacement assembly are also provided with adjusting devices, and the adjusting devices are arranged on the bottom plate and the supporting plate. And a current collector of the battery cell is centered between the upper welding head and the lower welding head. A battery cell is quickly positioned by utilizing the limiting plate and the supporting plate, the displacement assembly drives the supporting plate to move, and the adjusting devices at the two ends of the displacement assembly push the cylindrical optical axis sliding blocks to finely adjust the position of the battery cell, so that a current collector of the battery cell is centered between the upper welding head and the lower welding head for pre-welding.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy batteries, and in particular relates to a new energy battery core current collector pre-welding quick positioning fixture. Background Art

[0002] Common new energy batteries include lithium-ion batteries and sodium-ion batteries. Lithium-ion batteries are secondary batteries (rechargeable batteries) that mainly rely on the movement of lithium ions between the positive and negative electrodes to work. During the charging and discharging process, Li+ is embedded and de-embedded between the two electrodes: during charging, Li+ is de-embedded from the positive electrode and embedded in the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; during discharging, the opposite is true. Sodium-ion batteries mainly rely on the movement of sodium ions between the positive and negative electrodes to work, which is similar to the working principle of lithium-ion batteries.

[0003] In the manufacturing process of soft-pack batteries or aluminum shell batteries using the lamination process, the current collector of the battery cell needs to be pre-welded. During the pre-welding process, in order to ensure the welding quality and effect, the current collector of the battery cell needs to be set in the center position between the upper welding head and the lower welding head for pre-welding. It is difficult to control the positioning accuracy during manual operation, the welding quality is poor, and there are safety hazards. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a new energy battery cell current collector pre-welding rapid positioning fixture, which uses a support plate and a limit plate to quickly position the battery cell, and then adjusts the current collector to be centered between the upper welding head and the lower welding head through a displacement component and an adjustment device, thereby effectively providing the current collector with positioning accuracy and welding quality during pre-welding, improving welding efficiency, and reducing safety hazards.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A new energy battery cell current collector pre-welding quick positioning fixture comprises a base plate and a support plate, wherein the support plate is used to place the battery cell, a limit plate is arranged at one end of the support plate, a displacement component is arranged between the base plate and the support plate, and adjustment devices are also arranged on both sides of the displacement component so that the current collector of the battery cell is centered between an upper welding head and a lower welding head.

[0007] In one embodiment, the displacement assembly includes cylindrical linear guides arranged on both sides of the base plate, each of the cylindrical linear guides is equipped with two cylindrical optical axis sliders, and the support plate is installed on the cylindrical optical axis sliders. Through this embodiment, the cylindrical optical axis slider is installed on the cylindrical linear guide, and when it moves along the cylindrical linear guide, it drives the support plate to move, so that the battery cell collector on the support plate can be centered between the upper welding head and the lower welding head.

[0008] In one embodiment, the adjustment device includes a limit block and an adjustment piece inserted through the limit block, the limit block is mounted on the base plate and located at both ends of the cylindrical linear guide rail, and the end of the adjustment piece can abut against the cylindrical optical axis slider. Through this embodiment, the adjustment piece inserted through the limit block is used to push the cylindrical optical axis slider, thereby fine-tuning the position of the current collector.

[0009] In one embodiment, the adjusting member is a positioning bolt with an external thread, and the limiting block is provided with an internal thread matching the external thread, so that the adjusting member can move on the limiting block.

[0010] In one embodiment, it also includes a first side plate installed at both ends of the bottom of the base plate, a second side plate is installed on the first side plate, one end of the second side plate protrudes from the first side plate and is installed on the base, a welding table is installed on the base, the lower welding head is arranged on the welding table, and the welding table is located between the second side plates on the base. Through this embodiment, the first side plate, the second side plate and the base are used for support, and the lower welding head and the support plate form a whole, thereby improving the positioning accuracy when pre-welding the current collector of the battery cell.

[0011] In one embodiment, a plurality of adjustment grooves are provided on one end of the second side plate protruding from the first side plate, and a limit piece connected to the base is provided in the adjustment groove, and an end of the limit piece can contact the surface of the second side plate. Through this embodiment, the limit piece can move in the adjustment groove, and the length of the adjustment groove is the adjustment range of the second side plate, that is, the part of the second side plate protruding from the first side plate can move in the horizontal direction on the base, thereby driving the first side plate and the support plate thereon to slide in the horizontal direction, so as to adjust the distance between the current collector of the battery cell and the lower welding head when replacing different types of battery cells, so that the entire fixture can be suitable for pre-welding of different types of battery cells.

[0012] In one embodiment, the first side plate and the second side plate are detachably connected so that the first side plate can adjust the height of the battery cell in the vertical direction. Through this embodiment, that is, when the type of battery cell is replaced, if its thickness changes, the height of the battery cell can be adjusted in the vertical direction through the first side plate so that the current collector is centered between the upper welding head and the lower welding head, thereby further improving the applicability of the clamp.

[0013] In one embodiment, a plurality of connection holes are formed on the first side panel, and a through connection groove is formed on the second side panel along its side wall at positions corresponding to the connection holes. A connection rod matching the connection hole is provided in the connection groove so that the first side panel can move in the vertical direction. Through this embodiment, that is, by adjusting the position of the connection rod in the connection groove, the position of the first side panel can be fine-tuned up and down in the vertical direction, thereby adjusting the height of the battery cell on the support plate, so that when replacing battery cells of different thicknesses for processing, the current collector of the battery cell can be centered between the upper welding head and the lower welding head.

[0014] The beneficial effects of the utility model are:

[0015] (1) The battery cell is quickly positioned using the limit plate and the support plate. The displacement assembly drives the support plate to move. The adjustment devices at both ends of the displacement assembly push the cylindrical optical axis slider to fine-tune the position of the battery cell so that the current collector of the battery cell is centered between the upper welding head and the lower welding head for pre-welding.

[0016] (2) The first side plate, the second side plate and the base below the bottom plate make the support plate and the lower welding head form an integral whole, and the position of the battery cell can be adjusted horizontally and vertically through the first side plate and the second side plate, that is, after a simple adjustment, the pre-welding operation can be continued after replacing the battery cells of different types and specifications, which is suitable for the pre-welding of various different types of battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0018] in:

[0019] Figure 1 A schematic diagram showing the structure of the utility model in one direction;

[0020] Figure 2 A schematic diagram showing the structure of the utility model in another direction;

[0021] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0022] Reference numerals:

[0023] 1-battery cell, 2-limiting plate, 3-supporting plate, 4-limiting block, 5-positioning bolt, 6-bottom plate, 7-second side plate, 8-first side plate, 9-cylindrical linear guide, 10-upper welding head, 11-lower welding head, 12-cylindrical optical axis slider. DETAILED DESCRIPTION

[0024] The utility model will be further described below in conjunction with the accompanying drawings.

[0025] Example 1

[0026] The utility model provides a new energy battery core current collector pre-welding rapid positioning fixture, such as Figure 1 As shown, it includes a bottom plate 6 and a support plate 3, the support plate 3 is used to place the battery cell 1, a limit plate 2 is provided at one end of the support plate 3, a displacement component is provided between the bottom plate 6 and the support plate 3, and adjustment devices are also provided on both sides of the displacement component to center the current collector of the battery cell 1 between the upper welding head 10 and the lower welding head 11;

[0027] Specifically, Figure 1 As shown, the displacement assembly includes cylindrical linear guide rails 9 arranged on both sides of the base plate 6, two cylindrical optical axis sliders 12 are installed on each cylindrical linear guide rail 9, the support plate 3 is installed on the cylindrical optical axis slider 12, and the adjustment device includes a limit block 4 and an adjustment member passing through the limit block 4, the limit block 4 is installed on the base plate 6 and located at both ends of the cylindrical linear guide rail 9, and the end of the adjustment member can abut against the cylindrical optical axis slider 12;

[0028] Furthermore, the adjusting member is a positioning bolt 5 with an external thread, and the limiting block 4 is provided with an internal thread matching the positioning bolt 5, so that the adjusting member can move on the limiting block 4;

[0029] It should be noted that the battery cell 1 is placed on the support plate 3, and the battery cell 1 is quickly positioned using the limit plate 2 and the support plate 3. The cylindrical optical axis slider 12 is installed on the cylindrical linear guide rail 9. When it moves along the cylindrical linear guide rail 9, it drives the support plate 3 to move, so that the current collector of the battery cell 1 is located between the upper welding head 10 and the lower welding head 11. The adjustment devices at both ends of the displacement assembly push the cylindrical optical axis slider 12 to fine-tune the position of the battery cell 1, that is, adjust the position of the positioning bolt 5 penetrated on the limit block 4 to push the cylindrical optical axis slider 12 to move, and then fine-tune the position of the current collector, so that the current collector of the battery cell 1 can be centered between the upper welding head 10 and the lower welding head 11 for pre-welding, which not only greatly improves the welding efficiency, but also improves the welding quality, while also reducing the safety hazards of operators;

[0030] Example 2

[0031] The utility model provides a new energy battery core current collector pre-welding rapid positioning fixture, such as Figure 1 As shown, it includes a bottom plate 6 and a support plate 3, the support plate 3 is used to place the battery cell 1, a limit plate 2 is provided at one end of the support plate 3, a displacement component is provided between the bottom plate 6 and the support plate 3, and adjustment devices are also provided on both sides of the displacement component to center the current collector of the battery cell 1 between the upper welding head 10 and the lower welding head 11;

[0032] Specifically, Figure 1 and Figure 2As shown, it also includes a first side plate 8 installed at both ends of the bottom of the bottom plate 6, a second side plate 7 is installed on the first side plate 8, one end of the second side plate 7 protrudes from the first side plate 8 and is installed on the base, a welding table is installed on the base, a lower welding head 11 is arranged on the welding table, and the welding table is located between the second side plates 7 on the base, and a plurality of adjustment grooves are also provided on one end of the second side plate 7 protruding from the first side plate 8, a limiter connected to the base is provided in the adjustment groove, and the end of the limiter can contact the surface of the second side plate 7, the first side plate 8 and the second side plate 7 are detachably connected, so that the first side plate 8 can adjust the height of the battery cell 1 in the vertical direction, a plurality of connection holes are provided on the first side plate 8, and a through connection groove is provided along the side wall of the second side plate 7 at the position corresponding to the connection hole, and a connection rod matching the connection hole is provided in the connection groove, so that the first side plate 8 can move in the vertical direction;

[0033] It should be noted that the first side plate 8, the second side plate 7 and the base are used for support, and the lower welding head 11 and the support plate 3 form a whole, so as to improve the positioning accuracy when pre-welding the current collector of the battery cell 1. When replacing a different model of the battery cell 1, the limiter can move in the adjustment groove, and the length of the adjustment groove is the adjustment range of the second side plate 7, that is, the part of the second side plate 7 protruding from the first side plate 8 can move on the base in the horizontal direction, thereby driving the first side plate 8 and the support plate 3 thereon to slide in the horizontal direction, and adjusting the distance between the current collector of the battery cell 1 and the lower welding head 11. At the same time, the height of the battery cell 1 can also be adjusted in the vertical direction through the first side plate 8 to be suitable for battery cells 1 of different sizes;

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0035] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. A new energy battery core current collector pre-welding rapid positioning fixture, characterized in that: It includes a base plate and a support plate, the support plate is used to place the battery cell, a limit plate is set at one end of the support plate, a displacement component is set between the base plate and the support plate, and adjustment devices are also set on both sides of the displacement component to allow the current collector of the battery cell to be centered between the upper welding head and the lower welding head.

2. A new energy battery core current collector pre-welding rapid positioning fixture according to claim 1, characterized in that: The displacement assembly comprises cylindrical linear guide rails arranged on both sides of the base plate, two cylindrical optical axis sliders are installed on each of the cylindrical linear guide rails, and the support plate is installed on the cylindrical optical axis sliders.

3. A new energy battery core current collector pre-welding rapid positioning fixture according to claim 2, characterized in that: The adjustment device comprises a limit block and an adjustment member penetrating the limit block. The limit block is mounted on the base plate and located at both ends of the cylindrical linear guide rail. The end of the adjustment member can abut against the cylindrical optical axis slider.

4. A new energy battery core current collector pre-welding rapid positioning fixture according to claim 3, characterized in that: The adjusting member is a positioning bolt with an external thread, and the limiting block is provided with an internal thread matching the positioning bolt so that the adjusting member can move on the limiting block.

5. A new energy battery core current collector pre-welding rapid positioning fixture according to claim 1, characterized in that: It also includes a first side plate installed at both ends of the bottom of the base plate, a second side plate is installed on the first side plate, one end of the second side plate protrudes from the first side plate and is installed on the base, a welding table is installed on the base, the lower welding head is arranged on the welding table, and the welding table is located between the second side plates on the base.

6. A new energy battery core current collector pre-welding rapid positioning fixture according to claim 5, characterized in that: A plurality of adjustment grooves are provided on one end of the second side plate protruding from the first side plate. A limiting member connected to the base is provided in the adjusting groove, and an end of the limiting member can contact the surface of the second side plate.

7. A new energy battery core current collector pre-welding rapid positioning fixture according to claim 5, characterized in that: The first side plate is detachably connected to the second side plate so that the first side plate can adjust the height of the battery cell along the vertical direction.

8. A new energy battery core current collector pre-welding rapid positioning fixture according to claim 7, characterized in that: The first side plate is provided with a plurality of connection holes, and the second side plate is provided with a through connection groove along its side wall at positions corresponding to the connection holes, and a connection rod matching the connection hole is arranged in the connection groove to allow the first side plate to move in a vertical direction.

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