A pole group shaping device

Abstract

The present invention discloses a pole group shaping device, which relates to the field of electrochemical energy storage technology. The present invention includes a width shaping mechanism and a height shaping mechanism. The width shaping mechanism includes a first vertical clamping plate and a second vertical clamping plate. A plurality of first guide rods and a plurality of second guide rods are slidably mounted on the upper surface of the first mounting base plate. The adjacent first guide rods and the second guide rods are connected by a synchronization component, so that the first vertical clamping plate and the second vertical clamping plate maintain synchronous movement in opposite directions. The height shaping mechanism includes a second mounting base plate, a lifting plate and a pressing plate, and the pressing plate slides up and down with the lifting plate. The present invention sets a width shaping mechanism and a height shaping mechanism. The height shaping mechanism can press the pole group into the battery plastic shell from above to ensure the consistency of the height of the pole group and the tab. The width shaping mechanism can shape the tabs on the upper end of the pole group from both sides of the pole group so that the tabs on the pole group are neatly arranged, thereby ensuring the neatness of the pole group arrangement and the consistency of the tabs.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrochemical energy storage, and in particular relates to a pole group shaping device. Background Art

[0002] During battery production, the positive and negative electrode groups are connected by cast welding or automated welding, with the tabs of each group connected. However, once the groups are placed inside the battery's plastic casing, the relative positions of the plates deviate. To ensure reliable welding, the groups need to be aligned.

[0003] In existing technology, the electrode group is mostly shaped along the width of the battery. For example, Chinese invention patent publication number CN103346344B discloses a battery electrode group shaping mechanism. This scheme uses a slider with a slope that contacts a push block. The push block is raised and lowered to push the sliders on the first and second shaping frames closer together, thereby driving the shaping plates of the first and second shaping frames closer together, clamping the two sides of the electrode group tabs and achieving electrode group shaping.

[0004] However, this solution only achieves the shaping of the electrode group width, so that the electrode groups are aligned along the width of the battery, without shaping the electrode group height. During welding, if the electrode groups have large differences in height, the electrode group welding effect will still be poor, and it is easy to desolder, causing battery failure. Summary of the Invention

[0005] The object of the present invention is to provide a pole group shaping device. By setting a width shaping mechanism and a height shaping mechanism, the height shaping mechanism can press the pole group into the battery plastic shell from above to ensure the consistency of the height of the pole group and the pole ear; the width shaping mechanism can shape the pole ear at the upper end of the pole group from both sides of the pole group so that the pole ears on the pole group are arranged neatly, solving the problem in the background technology that only the pole group width is shaped, the pole group welding effect is poor, and it is easy to desolder.

[0006] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a pole group shaping device, comprising a width shaping mechanism and a height shaping mechanism. The width shaping mechanism comprises a first vertical clamping plate, a second vertical clamping plate and a first mounting base plate; the first mounting base plate is arranged horizontally, and a plurality of first guide rods and a plurality of second guide rods are slidably mounted on the upper surface of the first mounting base plate. One end of a plurality of the first guide rods extends out of the first mounting base plate and is fixedly connected to a side surface of the first vertical clamping plate, and one end of a plurality of the second guide rods extends out of the first mounting base plate and is fixedly connected to a side surface of the second vertical clamping plate. Adjacent first guide rods and second guide rods are connected by a synchronization component, so that the first guide rods and the second guide rods maintain synchronous movement in opposite directions.

[0008] The height shaping mechanism includes a second mounting base, a lifting plate, and a pressure plate. The upper surface of the lifting plate is fixedly connected to a plurality of lifting guide rods. Driven by a drive assembly, the lifting guide rods slide in conjunction with the second mounting base to drive the lifting plate downward. The pressure plate is fixedly connected to the lower surface of the lifting plate to slide downward with the lifting plate.

[0009] As a preferred technical solution of the present invention, the synchronization assembly includes a first rack, a second rack, and a synchronization gear. The synchronization gear is rotatably mounted on a first mounting base and disposed between a first guide rod and a second guide rod. The first rack is fixedly mounted on the first guide rod and meshes with the synchronization gear. The second rack is fixedly mounted on the second guide rod and also meshes with the synchronization gear.

[0010] As a preferred technical solution of the present invention, the first vertical clamping plate is fixedly mounted with a first horizontal clamping plate on the side close to the second vertical clamping plate. The second vertical clamping plate is fixedly mounted with a second horizontal clamping plate on the side close to the first vertical clamping plate.

[0011] As a preferred technical solution of the present invention, the side of the first vertical clamping plate is arranged with a plurality of mounting slots. The first horizontal clamping plate can be fixed in different mounting slots to adjust the relative height of the first horizontal clamping plate to the first vertical clamping plate. The second horizontal clamping plate and the second vertical clamping plate are fixed using the same mounting slot structure to adapt to the shaping of battery blanks of different specifications and sizes.

[0012] As a preferred technical solution of the present invention, a driving cylinder is fixedly mounted on the first mounting base plate, and a telescopic end of the driving cylinder is fixedly connected to the first vertical clamping plate to drive the first vertical clamping plate and the second vertical clamping plate to move.

[0013] As a preferred technical solution of the present invention, the drive assembly includes a guide block, a slider, and a plurality of rollers. The guide block is fixedly mounted on the lower surface of the second mounting base plate, and the slider slides in engagement with the lower surface of the guide block. The plurality of rollers are rotatably mounted on the upper surface of the lifting plate via axle seats. As the slider slides, the rollers roll in engagement with the lower surface of the slider.

[0014] As a preferred technical solution of the present invention, the upper end of the lifting guide rod extends out of the second mounting base plate and is fixed with a limit block. An elastic member is sleeved on the circumferential side of the lifting guide rod. One end of the elastic member abuts against the limit block, and the other end of the elastic member abuts against the upper surface of the second mounting base plate, driving the lifting plate to move upward and reset.

[0015] As a preferred technical solution of the present invention, a plurality of linear bearings are fixedly mounted on the surface of the second mounting base plate, and the lifting guide rods are in sliding engagement with the linear bearings.

[0016] As a preferred technical solution of the present invention, the pressing plate and the lifting plate are fixedly connected by a connecting rod. The connecting rod adopts a telescopic rod, which can adjust the initial height of the pressing plate to adapt to the shaping of battery blanks of different specifications and sizes.

[0017] As a preferred technical solution of the present invention, the telescopic end of the driving cylinder is fixedly connected to a driving connecting member, one end of the driving connecting member is fixedly connected to the first vertical clamping plate, and the other end of the driving connecting member is fixedly connected to the slider to simultaneously drive the width shaping mechanism and the height shaping mechanism to operate.

[0018] The present invention has the following beneficial effects:

[0019] 1. The present invention provides a width shaping mechanism and a height shaping mechanism. The height shaping mechanism includes a second mounting base plate, a lifting plate, and a pressing plate. Driven by the lifting plate, the pressing plate can press the electrode group into the battery plastic shell from above to ensure the height consistency of the electrode group and the tab. The width shaping mechanism includes a first vertical clamping plate and a second vertical clamping plate. The first vertical clamping plate and the second vertical clamping plate can move synchronously in opposite directions, aligning the two sides of the electrode group against the tab at the top of the electrode group to shape the tab so that the tabs on the electrode group are neatly arranged, thereby ensuring the neatness of the electrode group arrangement and the consistency of the tabs, and improving the quality of subsequent busbar welding.

[0020] 2. The present invention drives the width shaping mechanism and the height shaping mechanism to operate through a driving cylinder, thereby reducing the complexity of the overall structure and making the structure more compact; at the same time, it also enables the width shaping mechanism and the height shaping mechanism to move synchronously, with high operating efficiency and improved production rhythm.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a front view of a pole group shaping device in an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the structure of the pole group shaping device in an embodiment of the present invention;

[0025] Figure 3 Schematic diagram of the structure of the pole group shaping device in an embodiment of the present invention at an upward perspective;

[0026] Figure 4 A top view of the width shaping mechanism in an embodiment of the present invention;

[0027] Figure 5 It is a structural diagram of the width shaping mechanism;

[0028] Figure 6 for Figure 5 A partial enlarged schematic diagram of point A in the middle;

[0029] Figure 7 It is a front view of the height shaping mechanism;

[0030] Figure 8 This is a schematic structural diagram of a height shaping mechanism in an embodiment of the present invention;

[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0032] 100-width shaping mechanism, 1-first vertical clamping plate, 101-mounting slot, 2-second vertical clamping plate, 3-first horizontal clamping plate, 4-second horizontal clamping plate, 5-first guide rod, 6-second guide rod, 7-first rack, 8-second rack, 9-synchronizing gear, 10-driving cylinder, 1001-driving connector, 11-first mounting base plate;

[0033] 200-height shaping mechanism, 12-second mounting base plate, 13-lifting plate, 14-pressure plate, 15-linear bearing, 16-lifting guide rod, 1601-limiting block, 17-spring, 18-guide block, 19-slider, 1901-inclined surface, 20-roller, 21-connecting rod. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] During the production process of batteries, it is necessary to connect the tabs of the positive and negative single pole groups by cast welding or automatic welding. However, when the pole groups are placed in the battery plastic shell, there is a deviation in the relative positions of the pole plates. In order to ensure the reliability of welding, the pole groups need to be straightened and leveled. Most of the current solutions have realized the shaping of the pole group width, and the shaping of the pole group height is easily overlooked. During welding, if the pole groups have large differences in height, it will still lead to poor pole group welding effect, easy to desolder, and cause battery failure. In addition, height shaping and width shaping are generally understood as two processes in the industry. If triggered by this concept, those skilled in the art will usually set up a width shaping process and a height shaping process, which increases the complexity of the line and restricts the production rhythm. Based on this, this embodiment proposes a pole group shaping device that integrates height shaping and width shaping into one device to overcome the shaping bottleneck of the pole plates in the industry.

[0037] Figure 1-Figure 3 It is a schematic diagram of the pole group shaping device provided in this embodiment. The pole group shaping device integrates the width shaping mechanism 100 and the height shaping mechanism 200 into one, has a compact structure, and the width shaping mechanism 100 and the height shaping mechanism 200 can move synchronously, and the shaping efficiency is high.

[0038] See also Figure 4 and Figure 5 As shown, the width shaping mechanism 100 includes a first vertical clamping plate 1, a second vertical clamping plate 2 and a first mounting base plate 11. The first mounting base plate 11 is horizontally arranged and fixed on one side of the battery conveyor line body. Two first guide rods 5 and two second guide rods 6 are slidably mounted on the upper surface of the first mounting base plate 11 through a bearing seat. The two first guide rods 5 and the two second guide rods 6 are respectively arranged at the two ends of the first mounting base plate 11. One end of the first guide rod 5 extends out of the first mounting base plate 11 and is fixed to one side of the first vertical clamping plate 1 by bolts. One end of the two second guide rods 6 also extends out of the first mounting base plate 11 and is fixed to one side of the second vertical clamping plate 2 by bolts. The battery conveyor line is located below the first vertical clamping plate 1 and the second vertical clamping plate 2, and the battery blanks on the conveyor line will pass between the first vertical clamping plate 1 and the second vertical clamping plate 2.

[0039] The first guide rod 5 and the second guide rod 6 located at the same end of the first mounting base plate 11 are connected by a synchronization assembly, so that the first guide rod 5 and the second guide rod 6 maintain synchronous movement in opposite directions. Specifically, the synchronization assembly includes a first rack 7, a second rack 8 and a synchronization gear 9. The synchronization gear 9 is mounted on the first mounting base plate 11 by rotating the shaft and is arranged between the first guide rod 5 and the second guide rod 6. The first rack 7 is fastened to the first guide rod 5 with bolts, and the first rack 7 is engaged with the synchronization gear 9. The second rack 8 is fastened to the second guide rod 6 with bolts, and the second rack 8 is also engaged with the synchronization gear 9. When the first guide rod 5 or the second guide rod 6 slides, the other guide rod will slide in the opposite direction. Since the first vertical splint 1 and the second vertical splint 2 are driven by the first guide rod 5 and the second guide rod 6 respectively, the movement directions of the first vertical splint 1 and the second vertical splint 2 are also opposite, that is, they can be centered and abutted against the battery blank.

[0040] In a preferred embodiment of the present invention, since the width shaping is mainly to make the tabs above the pole group arranged neatly, and the vertical plywood is easy to touch the battery plastic shell and cause the shell to rupture. Therefore, in order to facilitate contact with the tabs, a horizontal plywood is also provided. Specifically, a first horizontal plywood 3 is fixedly installed on the side of the first vertical plywood 1 close to the second vertical plywood 2, and a second horizontal plywood 4 is fixedly installed on the side of the second vertical plywood 2 close to the first vertical plywood 1. The first horizontal plywood 3 and the second horizontal plywood 4 can press against the tabs from both sides of the tabs to make the tabs arranged neatly.

[0041] Also, see Figure 5 and Figure 6 As shown, to accommodate the shaping of battery tabs of different specifications, primarily batteries of varying heights, the first transverse clamping plate 3 and the second transverse clamping plate 4 can be installed at different heights on the first vertical clamping plate 1 and the second vertical clamping plate 2. Specifically, three mounting slots 101 are arranged along the height direction on the side of the first vertical clamping plate 1. The first transverse clamping plate 3 can be fixed to different mounting slots 101 by bolts, thereby adjusting the relative height of the first transverse clamping plate 3 on the first vertical clamping plate 1. The second transverse clamping plate 4 is fixed to the second vertical clamping plate 2 using the same mounting slot structure. During installation, the first transverse clamping plate 3 and the second transverse clamping plate 4 should be kept flush with each other.

[0042] See also Figure 7 and Figure 8 As shown, the height shaping mechanism 200 includes a second mounting base 12, a lifting plate 13, and a pressing plate 14. The second mounting base 12 is fixedly mounted above the battery conveyor line via a support frame, serving as the foundation for supporting the entire mechanism. The support frame can also be mounted on the first mounting base 11, so that the width shaping mechanism 100 and the height shaping mechanism 200 form a single unit.

[0043] Four lifting guide rods 16 are fixedly connected to the upper surface of the lifting plate 13 , and four linear bearings 15 are fixedly mounted on the surface of the second mounting base plate 12 . The lifting guide rods 16 slidably cooperate with the linear bearings 15 to drive the lifting plate 13 to slide up and down.

[0044] The pressing plate 14 and the lifting plate 13 are fixedly connected via a connecting rod 21. The connecting rod 21 is preferably a telescopic rod to adjust the initial height of the pressing plate 14 to adapt to the shaping of pole groups at different heights.

[0045] In this embodiment of the present invention, the lifting plate 13 slides downwardly via a drive assembly comprising a guide block 18, a slider 19, and two sets of rollers 20. The guide block 18 is bolted to the lower surface of the second mounting base 12, and the slider 19 slides in engagement with the lower surface of the guide block 18. The lower surface of the slider 19 is provided with two inclined surfaces 1901 corresponding to the rollers 20. The two sets of rollers 20 are rotatably mounted to the upper surface of the lifting plate 13 via axle seats. As the slider 19 slides, the rollers 20 roll in engagement with the lower surface of the slider 19. When the rollers 20 roll along the inclined surfaces 1901 to the lowest point of the slider 19, the lifting plate 13 also reaches the lowest point of its downward motion.

[0046] Based on the above design, to enable the lifting plate 13 to ascend and reset, the upper end of the lifting guide rod 16 extends out of the second mounting base plate 12 and is secured to a limit block 1601. A spring 17 is sheathed around the circumference of the lifting guide rod 16, one end of which abuts the limit block 1601 and the other end abuts the upper surface of the second mounting base plate 12. When the roller 20 rolls along the inclined surface 1901 to the highest point of the slider 19, the spring 17 lifts the lifting guide rod 16 upward, driving the lifting plate 13 upward.

[0047] In a preferred embodiment of the present invention, the width shaping mechanism 100 and the height shaping mechanism 200 are both driven by a single drive cylinder 10, thereby reducing the complexity of the overall structure and making the structure more compact. Specifically, the drive cylinder 10 is fixedly mounted on the first mounting base plate 11. The telescopic end of the drive cylinder 10 is fixedly connected to a drive connector 1001. One end of the drive connector 1001 is fixedly connected to the first vertical clamping plate 1, and the other end of the drive connector 1001 is fixedly connected to the slider 19. This simultaneously drives the width shaping mechanism 100 and the height shaping mechanism 200 to operate, thereby improving operational efficiency and increasing production cycle time.

[0048] A specific operation step of this embodiment is:

[0049] First, the battery blank moves between the first and second vertical clamps 1 and 2. Next, the drive cylinder 10 extends, bringing the first and second vertical clamps 1 and 2 closer together and driving the first and second horizontal clamps 3 and 4 to press against the tabs from either side, aligning the tabs. The extension of the drive cylinder 10 also simultaneously drives the slider 19 to slide, and the roller 20 rolls along the inclined surface 1901 toward the lowest point of the slider 19. At this time, the lifting plate 13 moves downward, compressing the spring 17. The downward movement of the lifting plate 13 also drives the pressing plate 14 downward, pressing it against the top of the electrode cluster, thereby aligning the electrode clusters at the same height. Finally, the drive cylinder 10 retracts, moving the first and second vertical clamps 1 and 2 apart. Simultaneously, the pressing plate 14 is lifted upward by the elastic force of the spring 17, and the width shaping mechanism 100 and height shaping mechanism 200 are reset, completing the shaping of the electrode clusters in the battery blank.

[0050] The entire device has a compact structure and efficient operation, which improves the shaping effect of the electrode group and ensures the production rhythm.

[0051] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0052] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pole group shaping device, characterized in that: include: The width shaping mechanism (100) comprises a first vertical clamping plate (1), a second vertical clamping plate (2) and a first mounting base plate (11); the first mounting base plate (11) is arranged horizontally, and a plurality of first guide rods (5) and a plurality of second guide rods (6) are slidably mounted on the upper surface of the first mounting base plate (11); One end of a plurality of the first guide rods (5) extends out of the first mounting base plate (11) and is fixedly connected to a side surface of the first vertical clamping plate (1); one end of a plurality of the second guide rods (6) extends out of the first mounting base plate (11) and is fixedly connected to a side surface of the second vertical clamping plate (2); adjacent first guide rods (5) and second guide rods (6) are connected via a synchronization component, so that the first guide rods (5) and the second guide rods (6) maintain synchronous movement in opposite directions; A height shaping mechanism (200) comprises a second mounting base plate (12), a lifting plate (13) and a pressing plate (14); a plurality of lifting guide rods (16) are fixedly connected to the upper surface of the lifting plate (13); the lifting guide rods (16) are slidably engaged with the second mounting base plate (12) under the drive of a driving assembly to drive the lifting plate (13) to slide downward; The pressing plate (14) is fixedly connected to the lower surface of the lifting plate (13) so as to slide downward along with the lifting plate (13); A driving cylinder (10) is fixedly mounted on the first mounting base plate (11), and a telescopic end of the driving cylinder (10) is fixedly connected to the first vertical clamping plate (1) to drive the first vertical clamping plate (1) and the second vertical clamping plate (2) to move; The driving assembly comprises a guide block (18), a slider (19) and a plurality of rollers (20); the guide block (18) is fixedly mounted on the lower surface of the second mounting base plate (12); and the slider (19) is in sliding engagement with the lower surface of the guide block (18); The lower surface of the slider (19) is provided with a plurality of inclined surfaces (1901), and the plurality of rollers (20) are rotatably mounted on the upper surface of the lifting plate (13) via an axle seat. As the slider (19) slides, the rollers (20) roll in conjunction with the lower surface of the slider (19); The telescopic end of the driving cylinder (10) is fixedly connected to a driving connecting member (1001), one end of the driving connecting member (1001) is fixedly connected to the first vertical clamping plate (1), and the other end of the driving connecting member (1001) is fixedly connected to the slider (19) to simultaneously drive the width shaping mechanism (100) and the height shaping mechanism (200) to operate.

2. The pole group shaping device according to claim 1, characterized in that: The synchronization assembly comprises a first rack (7), a second rack (8) and a synchronization gear (9); the synchronization gear (9) is rotatably mounted on a first mounting base plate (11) and is arranged between a first guide rod (5) and a second guide rod (6); The first rack (7) is fixedly mounted on the first guide rod (5), and the first rack (7) is meshed with the synchronous gear (9); The second rack (8) is fixedly mounted on the second guide rod (6), and the second rack (8) is also engaged with the synchronous gear (9).

3. The pole group shaping device according to claim 1, characterized in that: The first vertical clamping plate (1) is fixedly mounted with a first horizontal clamping plate (3) on a side surface close to the second vertical clamping plate (2); The second vertical clamping plate (2) is fixedly mounted with a second horizontal clamping plate (4) on the side close to the first vertical clamping plate (1).

4. The pole group shaping device according to claim 3, characterized in that: The side surface of the first vertical clamping plate (1) is provided with a plurality of mounting grooves (101), and the first horizontal clamping plate (3) can be fixed in different mounting grooves (101) respectively to adjust the relative height of the first horizontal clamping plate (3) on the first vertical clamping plate (1); The second transverse clamping plate (4) and the second vertical clamping plate (2) are fixed using the same mounting groove structure.

5. The pole group shaping device according to claim 1, characterized in that: The upper end of the lifting guide rod (16) extends out of the second mounting base plate (12) and is fixed with a limit block (1601); an elastic member is sleeved on the circumferential side of the lifting guide rod (16); one end of the elastic member abuts against the limit block (1601), and the other end of the elastic member abuts against the upper surface of the second mounting base plate (12).

6. The pole group shaping device according to claim 5, characterized in that: A plurality of linear bearings (15) are fixedly mounted on the surface of the second mounting base plate (12), and the lifting guide rods (16) are in sliding engagement with the linear bearings (15).

7. The pole group shaping device according to claim 6, characterized in that: The pressing plate (14) and the lifting plate (13) are fixedly connected via a connecting rod (21), and the connecting rod (21) is a telescopic rod.

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