A clamping tray for welding soft-pack battery tabs

Abstract

The present invention relates to the field of battery processing technology, and more specifically, to a clamping tray for welding tabs of soft-pack batteries. The tray comprises a base plate and a placement plate disposed on the base plate for placing a battery assembly. Positioning assemblies are provided on both sides of the placement plate in the length direction. The positioning assemblies can position a busbar included in the battery assembly and adjust the position of soft-pack battery cells integrated with the tabs on the placement plate through the tabs that cooperate with the busbar. A clamping assembly is provided in the width direction of the placement plate to clamp the soft-pack battery cells after positioning and adjustment. The positioning assembly includes a positioning plate with multiple plug-in blocks disposed on one side of the placement plate, and multiple auxiliary blocks disposed on the upper side of the positioning plate. A clamping area for positioning the busbar is formed between the auxiliary blocks and the plug-in blocks. This solves the problem of unstable busbar positioning during soft-pack battery production in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of battery processing, and in particular to a clamping tray for welding tabs of soft-pack batteries. Background Art

[0002] As the new energy sector continues to develop, soft-pack batteries, with their significant advantages over traditional liquid batteries in terms of energy density and safety, have gradually become a key focus of battery technology research and development and application. The processing and manufacturing process of soft-pack batteries plays a decisive role in their performance and quality. The assembly of multiple sheet cells and the welding of tabs are key steps in ensuring overall battery performance.

[0003] During the actual processing of soft-pack batteries, multiple sheet batteries typically need to be placed together in an orderly manner and securely clamped to ensure accurate relative positioning between the batteries, laying the foundation for subsequent processing operations such as tab welding. At the same time, to form the total electrode of multiple batteries, the tabs need to be connected to the heavier busbar. This connection requires not only reliable electrical connection but also precise connection position. Only when these conditions are met can the tab welding process be successfully completed, thus ensuring the overall performance and quality of the soft-pack battery.

[0004] However, existing clamping fixtures have significant limitations in design and functionality. Current clamping fixtures primarily focus on clamping and securing multiple sheet-shaped batteries, but present significant difficulties in positioning the heavier busbar. Due to the inherent weight of the busbar and the need for precise positioning during tab connection to ensure a quality connection between the tab and the busbar, existing clamping fixtures cannot easily and accurately position the busbar. This results in misalignment of the busbar during processing, which in turn affects the accuracy of the tab-to-busbar connection. This positioning difficulty significantly impacts the quality and efficiency of soft-pack battery processing. On the one hand, inaccurate busbar positioning can lead to loose connections and poor contact between the tab and the busbar. This not only increases the battery's internal resistance and reduces its charge and discharge performance, but can also pose safety risks and seriously impact the overall battery quality. On the other hand, to compensate for the problems caused by inaccurate busbar positioning, operators often need to expend considerable time and effort on adjustments and corrections, which undoubtedly increases processing time and reduces production efficiency, hindering the large-scale industrial production of soft-pack batteries. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem of unstable busbar positioning in the production process of soft-pack batteries in the prior art and to provide a clamping tray for welding the tabs of soft-pack batteries.

[0006] In order to solve the shortcomings of the above technical problems, the present invention adopts the following technical solutions: a clamping tray for welding the tabs of soft-pack batteries, which comprises a bottom plate and a placement plate provided on the bottom plate for placing the battery assembly, positioning components are provided on both sides of the placement plate in the length direction, the positioning components can position the busbar included in the battery assembly, and adjust the position of the soft-pack battery cell integrated with the tab on the placement plate through the tabs matched with the busbar, and a clamping component is provided in the width direction of the placement plate to clamp the soft-pack battery cell after positioning and adjustment;

[0007] The positioning assembly includes a positioning plate with multiple plug-in blocks on the side facing the placement plate, and multiple auxiliary blocks are provided on the upper side of the positioning plate. A clamping area for positioning the busbar is formed between the auxiliary blocks and the plug-in blocks.

[0008] As a further optimization of the clamping tray for welding the tabs of soft-pack batteries of the present invention: the positioning plate slides vertically, and an inclined power groove is opened on the positioning plate, a power column slides in the power groove, the power column is connected to a pushing slide sliding on the bottom plate, and an auxiliary handle is provided at the pushing slide away from the power column, and a tightening stud is provided on the auxiliary handle.

[0009] As a further optimization of the clamping tray for welding the tabs of soft-pack batteries of the present invention: the placing plate is arranged on the base plate, and a raising frame is provided between the placing plate and the base plate, and the two sides in the width direction of the placing plate are respectively provided with a fixed clamping claw and a movable clamping claw included in the clamping assembly, the movable clamping claw is slidably matched with the base plate, and the movable clamping claw is threadedly connected to the control screw arranged in the raising frame, and the control screw is rotatably connected to the base plate through a bearing seat provided on the base plate.

[0010] As a further optimization of the clamping tray for welding the tabs of soft-pack batteries of the present invention: a docking wheel is fixedly provided on one end of the control screw passing through the placement plate.

[0011] As a further optimization of the clamping tray for welding the tabs of soft-pack batteries of the present invention: an adjustment slide is fixedly provided on the side of the movable clamping claw facing the base plate, and the adjustment slide is slidably matched with an auxiliary slide rail provided on the base plate.

[0012] As a further optimization of the clamping tray for welding the tabs of soft-pack batteries of the present invention: the tops of the fixed clamping claws and the movable clamping claws included in the clamping assembly are both provided with card joints, and the card joints cooperate with the card holes included in the cover plate. The card holes are opened on the pressure cover plate that can press the soft-pack battery cell to cooperate with the clamping assembly and the clamping area to stabilize the battery assembly structure.

[0013] As a further optimization of the clamping tray for welding the tabs of soft-pack batteries of the present invention: a plurality of auxiliary blocks and limiting blocks are sequentially provided on both sides of the length direction of the pressure cover plate, and a positioning area for cooperating with the clamping area to stabilize the busbar can be formed between adjacent auxiliary blocks and limiting blocks.

[0014] As a further optimization of the clamping tray for welding the tabs of soft-pack batteries of the present invention: an adjustment waist groove is provided on the positioning plate, and the adjustment waist groove is connected with a plurality of plug-in blocks.

[0015] As a further optimization of the clamping tray for welding the tabs of soft-pack batteries of the present invention: the bottom plate is rectangular, and guide rollers are provided at the four corners of the bottom plate.

[0016] As a further optimization of the clamping tray for welding the tabs of soft-pack batteries of the present invention: slide bars are provided on both sides of the positioning plate in the width direction, and the slide bars slide in cooperation with the slide rail seats provided on the bottom plate, pushing the slide plate to slide in cooperation with the supporting slide rail provided on the bottom plate.

[0017] The present invention has the following beneficial effects:

[0018] The present invention facilitates the operator to push the power column provided on the push slide in a relatively narrow working condition by providing a push slide included in the positioning assembly in conjunction with a support slide provided on the bottom plate. During the stable movement of the power column, the positioning plate with the power slot will be driven to have a vertical displacement force through the power slot, and at the same time, the vertical displacement will be stabilized by cooperating with the slide bar and the slide rail seat provided on the positioning plate. During the stable vertical displacement of the positioning plate, the plug-in block provided on the positioning plate will be driven to vertically displace, so as to press the busbar and the soft-pack battery cell, so that the tabs on the soft-pack battery cell that pass through the gap on the busbar and are bent are in stable contact with the busbar, and the plug-in block can guide the busbar so that the bottom of the busbar enters the clamping area formed between the plug-in block and the stabilizing block provided on the positioning plate, thereby further stabilizing the position of the busbar, the soft-pack battery cell and the tabs so that they can be clamped and fixed by the subsequent clamping assembly. This avoids the problem of unstable busbar positioning during the production of soft-pack batteries to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the present invention from a first perspective;

[0020] Figure 2 This is a schematic diagram of the structure from a second viewing angle of the present invention;

[0021] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention;

[0023] Markings in the figure: 1. Base plate; 2. Positioning assembly; 201. Slide rail seat; 202. Slide bar; 203. Positioning plate; 204. Plug block; 205. Power slot; 206. Adjustment waist slot; 207. Stabilizing block; 208. Power column; 209. Wear-resistant wheel; 2010. Push slide; 2011. Tightening stud; 2012. Auxiliary handle; 2013. Support slide rail; 3. Clamping assembly; 301. Auxiliary slide rail; 302. Adjustment slide seat; 303. Axle Support; 304, docking wheel; 305, control screw; 306, movable clamping claw; 307, protective pad; 308, clamping joint; 309, fixed clamping claw; 4, cover plate; 401, pressure cover plate; 402, auxiliary block; 403, matching waist groove; 404, clamping hole; 405, limiting block; 5, placement rack; 6, guide roller; 7, cushion rack; 8, placement plate; 9, battery assembly; 901, soft-pack battery cell; 902, pole ear; 903, busbar. DETAILED DESCRIPTION

[0024] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with examples, but the content of the present invention is not limited to the following examples.

[0025] like Figure 1 and Figure 2 As shown, the present invention is a clamping tray for welding the tabs of soft-pack batteries, which has a rectangular base plate 1 with guide rollers 6 at the four corners, and a raised frame 7, a clamping assembly 3 and a positioning assembly 2 are provided on the base plate 1. The clamping assembly 3 is located in the width direction of the raised frame 7, and the positioning assembly 2 is located in the length direction of the raised frame 7. A placement plate 8 is fixedly provided on the top of the raised frame 7, and the placement plate 8 is capable of carrying a battery assembly 9, including a soft-pack battery cell 901, and cooperates with the clamping assembly 3 to clamp and position the soft-pack battery cell 901. Subsequently, the tabs 902 of multiple soft-pack battery cells 901 can pass through the busbar 903 and be bent to achieve circuit connection of multiple soft-pack battery cells 901. After the busbar 903 is connected to the tabs 902, the positioning assembly 2 assists in achieving precise positioning of the busbar 903, ensuring that the relative positions of the multiple soft-pack cells 901 and the busbar 903 are maintained during the subsequent welding process of the tabs 902, thereby ensuring the efficiency and stability of the processing of multiple soft-pack batteries. At the same time, a cover member 4 is also provided on the positioning assembly 2 to further limit the loosening of the clamping assembly 3 and work in conjunction with the positioning assembly 2 to stabilize the relative position of the busbar 903.

[0026] like Figure 3 and Figure 4As shown, the clamping assembly 3 includes a fixed clamping claw 309 and a movable clamping claw 306. The fixed clamping claw 309 is fixed on the base plate 1, and two adjustment slides 302 are provided at the bottom of the movable clamping claw 306. The adjustment slide 302 slides and the auxiliary slide rail 301 on the base plate 1 are slidably matched. A control screw 305 is provided between the two adjustment slides 302 and is threadedly connected to the movable clamping claw 306. Protective pads 307 are provided on the opposite surfaces of the fixed clamping claw 309 and the movable clamping claw 306. The protective pads 307 are made of elastic rubber material to protect the surface of the soft-pack battery cell 901 in the battery assembly 9 during the process of the movable clamping claw 306 and the fixed clamping claw 309 clamping the battery assembly 9. The control screw 305 can control the displacement of the movable clamping claw 306, so that the distance between the movable clamping claw 306 and the fixed clamping claw 309 is convenient for the operator to operate. Specifically, when the distance between the movable clamping claw 306 and the fixed clamping claw 309 is large, it is convenient for the operator to place multiple soft-pack battery cells 901 on the placement plate 8. After the multiple soft-pack battery cells 901 are placed, the operator can reversely rotate the control screw 305 to reset the movable clamping claw 306 and clamp and position the multiple soft-pack battery cells 901 to ensure that the multiple soft-pack battery cells 901 are stably positioned. The control screw 305 is rotatably connected to the base plate 1 through the bearing seat 303 on the base plate 1 to maintain the stable rotation of the control screw 305. The end of the control screw 305 that passes through the movable clamping claw 306 and the corresponding bearing seat 303 is fixed with a docking wheel 304. The docking wheel 304 can cooperate with the corresponding opening component to assist the operator to use mechanical control to adjust the position of the movable clamping claw 306, thereby reducing the need for manual operation to a certain extent and improving the efficiency of opening and closing the tray.

[0027] The positioning assembly 2 includes a positioning plate 203 provided on one side of the placement plate 8 in the longitudinal direction. The positioning plate 203 is vertically slidably provided on the bottom plate 1. Specifically, the positioning plate 203 is fixed with slide bars 202 on both sides along the width direction of the placement plate 8. The slide bars 202 are slidably provided on the slide rail seat 201 fixed on the bottom plate 1. The positioning plate 203 is provided with an adjustment groove 206. The adjustment groove 206 is connected to a plurality of plug-in blocks 204 by screws, so that the operator can adjust the position of the plug-in blocks 204 according to different soft-pack battery processing conditions. Figure 4As shown, the plug-in block 204 can be inserted between the busbar 903 and the soft-pack battery cell 901 to locate the distance between the busbar 903 and the soft-pack battery cell 901, and to align the length direction of the soft-pack battery cell 901 to the designed position, while making the tabs 902 that pass through the busbar 903 and are bent be in stable contact with the busbar 903. The plug-in block 204 can cooperate with the stabilizing block 207 fixed on the top surface of the positioning plate 203 to form a clamping area to clamp and position the busbar 903. A power slot 205 is provided at the center of the positioning plate 203. The power slot 205 is arranged in an inclined shape, and a power column 208 is slidably provided in the power slot 205. Specifically, a wear-resistant wheel 209 is provided on the outside of the power column 208 to reduce the mutual friction when the power column 208 slides in the power slot 205, so that the power column 208 can slide easily in the power slot 205. The power column 208 is fixedly connected to a push slide 2010, which is slidably arranged on a support rail 2013 on the base plate 1. The push slide 2010 is provided with an auxiliary handle 2012, and the auxiliary handle 2012 is threadedly connected with a tightening stud 2011. During specific use, the operator can use the auxiliary handle 2012 to drive the push slide 2010 to move the power column 208 and the wear-resistant wheel 209 in the power groove 205, and then cooperate with the inclined power groove 205 to make the positioning plate 203 stably vertically displaced under the support of the slide bar 202 and the slide rail seat 201. When the positioning plate 203 moves vertically upward, the plug-in block 204 will first be inserted between the busbar 903 and the soft-pack battery cell 901, and then guide the soft-pack battery cell 901 and the busbar 903 to maintain a corresponding distance, and guide the soft-pack battery cell 901 to move to the designed position. As the positioning plate 203 gradually rises, the busbar 903 will enter the clamping area to further locate the position of the busbar 903. After the positioning plate 203 is moved into place, the operator can rotate the tightening stud 2011 so that the tightening stud 2011 presses against the bottom plate 1 to stabilize the position of the positioning plate 203, thereby maintaining the stability of the subsequent processing of the soft-pack battery cells 901. After repeatedly manipulating the two positioning components 2, the two busbars 903 and multiple soft-pack battery cells 901 can be positioned at the designed positions on the placement plate 8. Finally, the operator can manipulate the clamping component 3 to clamp and position multiple soft-pack battery cells 901 for subsequent processing of the battery assembly 9.

[0028] The cover plate 4 includes a pressure cover plate 401 for covering the top of the multiple soft-pack battery cells 901. The pressure cover plate 401 is provided with a snap-in hole 404. The snap-in hole 404 can snap-in with the snap-in joint 308 fixed on the top of the movable clamping claw 306 and the fixed clamping claw 309 to locate its own position. At the same time, the snap-in hole 404 can also limit the position of the fixed clamping claw 309 and the movable clamping claw 306 to maintain the stability of the fixed clamping claw 309 and the movable clamping claw 306 in positioning the multiple soft-pack battery cells 901. Both sides of the cover plate 4 in the longitudinal direction are provided with multiple limiting blocks 405 and multiple auxiliary blocks 402. A positioning area for clamping the busbar 903 can be formed between the auxiliary blocks 402 and the limiting blocks 405. The positioning area can cooperate with the clamping area to further stabilize the relative position of the busbar 903. The auxiliary block 402 is connected to the matching waist groove 403 on the pressure cover plate 401 by screws, so that the operator can adjust the position of the auxiliary block 402 to accommodate the tab 902 of the soft-pack battery cell 901. The limiting block 405 is connected to the side of the pressure cover plate 401 in the longitudinal direction by screws to facilitate the operator to adjust it to avoid the circuit connection point on the top of the busbar 903. Before being placed on the fixed clamping claw 309 and the movable clamping claw 306, the cover plate 4 can be placed on the placement rack 5 on the base plate 1 to facilitate the operator to pick up and place it. It can also be convenient for the operator to store it after disassembly to reduce the time of searching when it is needed.

[0029] During specific use, first, by opening the assembly and cooperating with the docking wheel 304, the control screw 305 is driven to rotate. After that, the operator can use the movable clamping claw 306 to move the placement plate 8 to expose enough space. Then, the operator can place the corresponding number of soft-pack battery cells 901 on the placement plate 8. Next, the operator can push the two positioning assemblies 2 in sequence to stably position the busbar 903 connected to the tabs 902 of the soft-pack battery cells 901, and at the same time, stably place the multiple soft-pack battery cells 901 at the designed position of the placement plate 8. The movable clamping claw 306 can then be reset by opening the assembly to stabilize the multiple soft-pack battery cells 901 after the clamping position is defined, and then proceed to the subsequent battery assembly 9 processing steps. After the multiple soft-pack battery cells 901 are clamped and positioned, the cover plate 4 can be placed on top of the multiple soft-pack battery cells 901, and the clamping holes 404 are engaged with the clamping joints 308 provided on the top of the fixed clamping claws 309 and the movable clamping claws 306 to further stabilize the relative positions of the fixed clamping claws 309 and the movable clamping claws 306, that is, to stabilize the clamping of the multiple soft-pack battery cells 901. Finally, the bottom plate 1 can be placed on the processing line, and the guide rollers 6 provided at the four corners of the bottom edge are used to transfer the bottom plate 1 and the battery assembly 9 to various processing steps for processing.

[0030] The above describes the specific embodiments of the present invention in detail. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various variations or modifications within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A clamping tray for welding tabs of soft-pack batteries, characterized by: It comprises a base plate (1) and a placement plate (8) provided on the base plate (1) for placing a battery assembly (9), positioning components (2) being provided on both sides of the placement plate (8) in the length direction, the positioning component (2) being capable of positioning a busbar (903) included in the battery assembly (9), and adjusting the position of a soft-pack battery cell (901) integrated with the busbar (902) on the placement plate (8) through a tab (902) matched with the busbar (903), and a clamping component (3) being provided in the width direction of the placement plate (8) for clamping the soft-pack battery cell (901) after positioning adjustment; The positioning assembly (2) comprises a positioning plate (203) provided with a plurality of plug-in blocks (204) on one side facing the placement plate (8); a plurality of auxiliary blocks (402) are provided on the upper side of the positioning plate (203); a clamping area for positioning the manifold (903) is formed between the auxiliary blocks (402) and the plug-in blocks (204); The plug-in block (204) can be inserted between the busbar (903) and the soft-pack battery cell (901) to locate the distance between the busbar (903) and the soft-pack battery cell (901), and align the length direction of the soft-pack battery cell (901) to the designed position, while allowing the tab (902) that passes through the busbar (903) and is bent to be in stable contact with the busbar (903); Both sides of the positioning plate (203) in the width direction are provided with slide bars (202), and the slide bars (202) are slidably matched with the slide rail seat (201) provided on the bottom plate (1), so as to push the slide plate (210) to slidably match with the support slide rail (2013) provided on the bottom plate (1); The positioning plate (203) slides vertically, and an inclined power groove (205) is provided on the positioning plate (203), a power column (208) slides in the power groove (205), the power column (208) is connected to a pushing slide plate (2010) sliding on the bottom plate (1), an auxiliary handle (212) is provided on the pushing slide plate (210) away from the power column (208), and a tightening screw (211) is provided on the auxiliary handle (212).

2. A clamping tray for welding tabs of soft-pack batteries according to claim 1, characterized in that: The placement plate (8) is arranged on the base plate (1), and a raised frame (7) is provided between the placement plate (8) and the base plate (1). A fixed clamping claw (309) and a movable clamping claw (306) included in the clamping assembly (3) are provided on both sides in the width direction of the placement plate (8). The movable clamping claw (306) is slidably matched with the base plate (1). The movable clamping claw (306) is threadedly connected to a control screw (305) provided in the raised frame (7). The control screw (305) is rotatably connected to the base plate (1) through a bearing seat (303) provided on the base plate (1).

3. A clamping tray for welding tabs of soft-pack batteries according to claim 2, characterized in that: One end of the control screw (305) passing through the placement plate (8) is fixedly provided with a docking wheel (304).

4. The clamping tray for welding tabs of soft-pack batteries according to claim 2, characterized in that: An adjusting slide (302) is fixedly provided on one side of the movable clamping claw (306) facing the bottom plate (1), and the adjusting slide (302) is slidably engaged with an auxiliary slide rail (301) provided on the bottom plate (1).

5. The clamping tray for welding tabs of soft-pack batteries according to claim 1, characterized in that: The clamping assembly (3) includes a fixed clamping claw (309) and a movable clamping claw (306), both of which are provided with a clamping joint (308) on the top. The clamping joint (308) cooperates with a clamping hole (404) included in the cover plate (4). The clamping hole (404) is provided on a pressure cover plate (401) capable of pressing the soft-pack battery cell (901) to cooperate with the clamping assembly (3) and the clamping area to stabilize the battery assembly (9) structure.

6. A clamping tray for welding tabs of soft-pack batteries according to claim 5, characterized in that: A plurality of auxiliary blocks (402) and limiting blocks (405) are sequentially provided on both sides of the longitudinal direction of the gland plate (401), and a positioning area for cooperating with the clamping area to stabilize the manifold (903) can be formed between adjacent auxiliary blocks (402) and limiting blocks (405).

7. The clamping tray for welding tabs of soft-pack batteries according to claim 1, characterized in that: An adjusting waist groove (206) is provided on the positioning plate (203), and the adjusting waist groove (206) is connected to a plurality of plug-in blocks (204).

8. The clamping tray for welding tabs of soft-pack batteries according to claim 1, characterized in that: The bottom plate (1) is rectangular, and guide rollers (6) are provided at the four corners of the bottom plate (1).

Images