Battery shell pole parallel deviation improving device

Abstract

The utility model discloses a battery shell pole parallel deviation improving device which comprises a base, a supporting rod is fixedly connected to one side wall of the base, an air cylinder is fixedly connected to the bottom face of a cross rod at the top end of the supporting rod, and a plurality of idler wheels are arranged in the horizontal direction, located between two lower pressing plates and used for supporting a battery shell. In the process of conveying a battery shell provided with a cover plate by moving the transfer support, when the cover plate is conveyed to a preset position between the upper pressing plate and the lower pressing plate, the output end of the air cylinder drives the upper pressing plate to move downwards, the cover plate is pressed and driven to rotate, the cover plate transmits torque through the elastic conducting strip connected with the cover plate, and the cover plate is driven to rotate. And then an operator or a manipulator can place the to-be-welded cover plate with the pole on the positioned lower pressing plate on the other side, and the relative parallelism of the pole cover plates at the two ends of the battery during welding is remarkably improved through an automatic alignment mechanism in the process.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery processing technical field, concretely relates to a battery shell pole post parallelism deviation improvement device. BACKGROUND

[0002] Cylindrical lithium batteries are widely used in consumer electronics, power tools, new energy vehicles and other fields due to their high standardization, large energy density and low manufacturing cost. In the manufacturing process of the battery shell, multiple battery cells need to be combined in series and parallel through positive and negative pole posts. If the pole posts have parallel deviation, that is, the pole post end face is not perpendicular to the battery shell axis, a series of serious problems will occur in the subsequent laser welding or mechanical pressure bonding process.

[0003] In the current production process, after the battery shell on one side is welded with the cover plate having the pole post through the elastic conductive sheet, the battery shell is easy to rotate with the cover plate containing the pole post during movement. On the other side, the pole post parallelism is generally adjusted by visual inspection of the operator during welding. The manual visual inspection method has obvious subjective deviation and is difficult to ensure accuracy, resulting in parallel deviation of some battery pole posts, that is, the pole post end face is not perpendicular to the battery shell axis. Such defects will cause a series of serious problems in the subsequent laser welding or mechanical pressure bonding process. The inclination of the pole post will cause inconsistent laser welding penetration, virtual welding or welding through, significantly reducing the welding yield and the structural reliability of the module, and further exacerbating the performance degradation and safety risk of the battery. UTILITARIAN CONTENT

[0004] Therefore, the purpose of the utility model is to provide a battery shell pole post parallelism deviation improvement device to overcome the problems in the prior art. In the current production process, after the battery shell on one side is welded with the cover plate having the pole post through the elastic conductive sheet, the battery shell is easy to rotate with the cover plate containing the pole post during movement. On the other side, the pole post parallelism is generally adjusted by visual inspection of the operator during welding. The manual visual inspection method has obvious subjective deviation and is difficult to ensure accuracy, resulting in parallel deviation of some battery pole posts, that is, the pole post end face is not perpendicular to the battery shell axis. Such defects will cause a series of serious problems in the subsequent laser welding or mechanical pressure bonding process. The inclination of the pole post will cause inconsistent laser welding penetration, virtual welding or welding through, significantly reducing the welding yield and the structural reliability of the module, and further exacerbating the performance degradation and safety risk of the battery.

[0005] The utility model is implemented by the following technical solutions:

[0006] The utility model provides a kind of battery shell pole parallel deviation improving device, including base, one side wall of the base is fixedly connected with support rod, the top end horizontal bar bottom surface of the support rod is fixedly connected with pneumatic cylinder, the output end of the pneumatic cylinder is fixedly connected with upper pressing plate, the top surface of the two vertical boards of the base is fixedly connected with lower pressing plate and one of lower pressing plate is arranged directly below upper pressing plate, the top surface of the horizontal plate of the base is connected with fixed transfer support by multiple vertical rods, mobile transfer support is equipped between the fixed transfer support and base, the mobile transfer support is equipped with the through slot for the multiple vertical rods to pass, at least a pair of rotating shafts is rotatably equipped on the two opposite side walls of the base respectively, and one end of each rotating shaft is fixedly connected with disc inside the base, and the disc is hingedly connected with connecting rod at off-center position and the other end side wall of connecting rod is hingedly connected with mobile transfer support side wall, and one rotating shaft is driven by motor fixedly installed on the base.

[0007] Preferably, the opposite side walls of the fixed transfer support and the mobile transfer support are each provided with a plurality of V-shaped grooves for positioning the battery shell.

[0008] Preferably, a plurality of rollers are rotatably mounted on the fixed transfer support by rotating shafts, and the plurality of rollers are arranged in a horizontal direction and located between the two lower pressing plates for supporting the battery shell.

[0009] The utility model discloses the advantages: in the process of conveying battery shell with cover plate through mobile transfer support, when the cover plate is transported to the predetermined position between upper pressing plate and lower pressing plate, the output end of pneumatic cylinder drives upper pressing plate to move downward, presses the cover plate and drives it to rotate, the cover plate transmits torque through the elastic conductive sheet connected therewith, promotes the synchronous rotation of battery shell, so that the spatial posture of cover plate is dynamically adjusted, the reference plane of the lower surface of cover plate and lower pressing plate reaches parallel, then the operator or mechanical hand can place the battery shell with pole column cover plate to be welded on the lower pressing plate positioned on the other side, and the relative parallelism when welding the pole column cover plate at both ends of battery is significantly improved through automatic alignment mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0011] Figure 1 The structure of the utility model is shown in the figure;

[0012] Figure 2 The side view of the structure of the utility model is shown in the figure;

[0013] Figure 3 the rear view of the structure of the utility model;

[0014] Figure 4 the perspective view of the utility model; Figure 3

[0015] Figure 5 the partial enlarged view of the utility model; Figure 3

[0016] Figure 6 the schematic view of the utility model in the correction working state.

[0017] In the figure: base 1, support rod 2, air cylinder 3, upper pressing plate 4, lower pressing plate 5, vertical rod 6, fixed moving support 7, moving support 8, through slot 9, rotating shaft 10, disc 11, connecting rod 12, motor 13, roller 14, battery shell 15, cover plate 16. DETAILED DESCRIPTION

[0018] In order to make the purpose and advantages of the utility model more clear and apparent, the utility model will be further described below in conjunction with examples; it should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0019] The preferred embodiments of the utility model will be described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model and not to limit the protection scope of the utility model.

[0020] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the direction or positional relationship terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0021] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] For example, Figures 1-6 ​​As shown in the utility model provides the following technical scheme: a battery shell pole column parallel deviation improvement device, including base 1, one side wall of base 1 is fixedly connected with support rod 2, the top end horizontal rod bottom surface of support rod 2 is fixedly connected with pneumatic cylinder 3, the output of pneumatic cylinder 3 is fixedly connected with upper pressing plate 4, the top surface of the two vertical boards of base 1 is fixedly connected with lower pressing plate 5, and one of lower pressing plate 5 is arranged directly below upper pressing plate 4, the top surface of the horizontal plate of base 1 is connected with fixed transfer support 7 through a plurality of vertical rods 6, and mobile transfer support 8 is arranged between fixed transfer support 7 and base 1, a through slot 9 for the plurality of vertical rods 6 to pass through is formed in mobile transfer support 8, at least a pair of rotating shafts 10 is rotatably arranged on the opposite side walls of base 1, one end of each rotating shaft 10 is fixedly connected with disc 11 inside base 1, connecting rod 12 is hingedly connected to the off-center position of disc 11, and the other end side wall of connecting rod 12 is hingedly connected to the side wall of mobile transfer support 8, and one of rotating shafts 10 is driven by motor 13 fixedly installed on base 1.

[0023] When working, the manipulator or operator on the flow line places the battery shell 15 with the cover plate 16 welded on one end on the mobile transfer support 8, and the output of the motor 13 is intermittently rotated 360° clockwise by operating the controller, the output of the motor 13 drives the rotating shaft 10 fixedly connected thereto to rotate, the rotating shaft 10 drives the disc 11 to rotate, the disc 11 drives the connecting rod 12 to rotate and move around the center of the disc 11, the connecting rod 12 drives the mobile transfer support 8 to perform intermittent reciprocating motion, the mobile transfer support 8 drives the through slot 9 to reciprocate, the through slot 9 prevents the plurality of vertical rods 6 from blocking the movement of the mobile transfer support 8, the mobile transfer support 8 drives the other connecting rods 12 hingedly connected thereto to move, the other connecting rods 12 drive the discs 11 hingedly connected thereto to rotate, and the plurality of rotating shafts 10, discs 11 and connecting rods 12 serve to support the mobile transfer support 8, facilitating the reciprocating motion of the mobile transfer support 8, the mobile transfer support 8 drives the battery shell 15 with the cover plate 16 on one side to move, the battery shell 15 moves and is clamped on the fixed transfer support 7 to serve as a support, when the cover plate 16 moves below the upper pressing plate 4, at this time the battery shell 15 is clamped on the fixed transfer support 7, the control system starts the pneumatic cylinder 3, the output of the pneumatic cylinder 3 drives the upper pressing plate 4 to move downward and press the cover plate 16, since the cover plate 16 is connected with the battery shell 15 by the elastic conductive sheet and has a certain torsional flexibility, the downward pressure of the upper pressing plate 4 drives the cover plate 16 to slightly rotate, the cover plate 16 drives the battery shell 15 to rotate on the fixed transfer support 7 by the elastic conductive sheet, until the bottom surface of the cover plate 16 completely abuts against the top surface of the lower pressing plate 5, the cover plate 16 with the pole is leveled and corrected, as shown in the figure. Figure 6

[0024] ​The operator or the mechanical hand can place another to-be-welded pole cover plate 16 on the lower pressing plate 5 on the front side and align with the other end of the battery shell 15, and then the laser welding operation can be performed, and due to the base planes of the two ends of the battery, the corrected pole cover plate 16 and the lower pressing plate 5 are guaranteed to be parallel, thereby greatly improving the parallel consistency of the two ends of the pole after welding.

[0025] The welded battery shell 15 is lifted, transported and placed on the fixed moving support 7 by the intermittent reciprocating movement of the moving support 8, until the welded battery shell 15 is transported out of the device by the moving support 8.

[0026] The opposite side walls of the fixed moving support 7 and the moving support 8 are provided with a plurality of V-shaped grooves for positioning the battery shell 15, so that the V-shaped grooves on the moving support 8 can clamp and transport the battery shell 15, and the V-shaped grooves on the fixed moving support 7 can support the moved battery shell 15.

[0027] A plurality of rollers 14 are rotatably installed on the fixed moving support 7 through rotating shafts, and the plurality of rollers 14 are arranged in the horizontal direction and located between the two lower pressing plates 5 for supporting the battery shell 15, when the battery shell 15 moves and drives the cover plate 16 to move under the upper pressing plate 4, the battery shell 15 is clamped between the rollers 14 on the fixed moving support 7, and the battery shell 15 drives the rollers 14 to rotate in the process of rotating, realizing rolling friction, reducing the friction between the battery shell 15 and the fixed moving support 7, and facilitating the rotation of the battery shell 15.

[0028] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A battery case pole parallel deviation improvement device comprising a base, characterized by: One side wall of the base is fixedly connected with a support rod, a top end horizontal rod bottom surface of the support rod is fixedly connected with a gas cylinder, an output end of the gas cylinder is fixedly connected with an upper pressing plate, top surfaces of two vertical plates of the base are fixedly connected with lower pressing plates and one of the lower pressing plates is arranged directly below the upper pressing plate, a horizontal plate top surface of the base is connected with a fixed moving support through a plurality of vertical rods, a moving support is arranged between the fixed moving support and the base, a through slot for the plurality of vertical rods to pass through is formed in the moving support, at least one pair of rotating shafts is rotatably arranged on the two opposite side walls of the base, one end of each rotating shaft fixedly connected with a disc on the inner side of the base, the disc is hingedly connected with a connecting rod at a position deviated from the center and the other end of the connecting rod is hingedly connected with a side wall of the moving support, and one of the rotating shafts is driven by a motor fixedly installed on the base.

2. The battery case pole deviation improvement device according to claim 1, characterized by: A plurality of V-shaped grooves for positioning the battery shell are arranged on the opposite side walls of the fixed moving support and the moving support.

3. The battery case pole deviation improvement device according to claim 1, characterized by: A plurality of rollers are rotatably installed on the fixed moving support through rotating shafts, the plurality of rollers are arranged in the horizontal direction and located between the two lower pressing plates for supporting the battery shell.

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