A welding assembly mechanism for lithium batteries

Abstract

The present invention discloses a welding assembly mechanism for lithium batteries, which relates to the technical field of lithium battery assembly and processing. The present invention includes a welding table for welding lithium batteries, a discharge conveying mechanism installed on one side of the welding table, and a loading conveying mechanism installed on the other side of the welding table; a first pushing mechanism for pushing the lithium batteries located thereon onto the welding table is provided at the end of the loading conveying mechanism; a laser welding mechanism is provided on the side of the welding table close to the discharge conveying mechanism, and a second pushing mechanism for pushing the lithium batteries located thereon onto the discharge conveying mechanism is also provided on the welding table. The present invention realizes convenient automated welding during use and improves welding assembly efficiency by respectively providing a discharge conveying mechanism and a loading conveying mechanism on both sides of the welding table, and providing a first pushing mechanism and a second pushing mechanism for controlling the transfer of lithium batteries between the discharge conveying mechanism and the loading conveying mechanism of the welding table.

Description

Technical Field

[0001] The present invention belongs to the technical field of lithium battery assembly and processing, and in particular relates to a welding assembly mechanism for lithium batteries. Background Art

[0002] Lithium battery welding technology is extremely important in the production process, as its quality directly impacts the performance and lifespan of lithium batteries. Lithium battery welding technology specifically includes the welding of wires / leads and the connection of electrodes. Electrodes are often welded using spot welding.

[0003] Existing lithium battery welding operations mostly use semi-automatic spot welding machines, which manually hold the welding head to weld the electrode sheets. This operation requires manual loading and unloading, which is inefficient. Lithium batteries are prone to displacement during transportation, and the fixed design of the operating table during multi-process flow leads to low process conversion efficiency. Summary of the Invention

[0004] The object of the present invention is to provide a welding assembly mechanism for lithium batteries, which solves the problems raised by the existing background technology by respectively arranging a discharge conveying mechanism and a loading conveying mechanism on both sides of the welding table, and arranging a first pushing mechanism and a second pushing mechanism for controlling the transfer of lithium batteries between the discharge conveying mechanism and the loading conveying mechanism of the welding table.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a welding and assembly mechanism for lithium batteries, comprising a welding table for welding lithium batteries, a discharge conveying mechanism installed on one side of the welding table, and a loading conveying mechanism installed on the other side of the welding table; a first pushing mechanism for pushing the lithium batteries located thereon onto the welding table is provided at the end of the loading conveying mechanism; a laser welding mechanism is provided on the side of the welding table close to the discharge conveying mechanism, and a second pushing mechanism for pushing the lithium batteries located thereon onto the discharge conveying mechanism is further provided on the welding table; the discharge conveying mechanism and the loading conveying mechanism have the same conveying direction; and the moving directions of the first pushing mechanism and the second pushing mechanism are perpendicular.

[0007] Furthermore, a number of lithium battery assembly tables are arranged at equal intervals along the length direction of one side of the loading and conveying mechanism, and the lithium battery assembly table includes a box supported by supporting legs, a circular hole is opened on the top of the box, and a circular operating table is connected to the bottom side of the box through a rotating motor; the circular operating table rotates at the circular hole; an inclined slide is connected to one side of the box; and an axis for placing a tape roll is provided on the upper surface of the box located on one side of the circular operating table.

[0008] Furthermore, a side baffle is fixedly installed on the other side of the loading and conveying mechanism through a plurality of L-shaped brackets.

[0009] Furthermore, the first pushing mechanism includes at least two U-shaped mounting frames arranged at the end of the loading and conveying mechanism, and the U-shaped mounting frames are connected to a rectangular mounting plate arranged along the length direction of the loading and conveying mechanism through a telescopic module A, and the bottom side of the rectangular mounting plate is installed with a telescopic module B, and the end of the telescopic module B is installed with a push plate; the telescopic direction of the telescopic module B is the same as the conveying direction of the loading and conveying mechanism.

[0010] Furthermore, the second pushing mechanism includes a rectangular opening A arranged on the welding table, and rectangular openings B are opened on the welding tables located on both sides of the rectangular opening A; it also includes a movable plate A, and a protrusion that movably passes through the rectangular opening A and the rectangular opening B is provided on one side of the movable plate A; a linear module is provided below the welding table located at the rectangular opening A along the length direction of the rectangular opening A, and the protrusion is connected to the slider of the linear module; a guide rod is provided between the two ends of the rectangular opening B, and the guide rod movably passes through the protrusion.

[0011] Furthermore, the length directions of the rectangular opening A and the rectangular opening B are perpendicular to the conveying directions of the unloading conveying mechanism and the loading conveying mechanism; one side of the movable plate A is connected to a movable push plate through a number of telescopic modules B, and a baffle is provided on the upper surface of the welding table, and the baffle and the rectangular opening B have the same length direction.

[0012] Furthermore, the laser welding mechanism includes a gantry arranged on the welding table, an X-axis moving module is provided on one side of the gantry, the X-axis moving module is connected to the Z-axis moving module, the Z-axis moving module is connected to a mounting frame that moves along the vertical direction, and the laser welding head is installed on the mounting frame.

[0013] Furthermore, the lithium battery is provided with a clamping and fixing frame for clamping and fixing the electrode sheet placed on the lithium battery; the clamping and fixing frame includes clamping plates located at both ends, and the two clamping plates are connected by two connecting rods; the bottom side of the connecting rod is connected to a pressure ring for clamping the two ends of the electrode sheet placed on the lithium battery through a connecting block; the two ends of the clamping plate are respectively provided with protrusions that are clamped on the two ends of the lithium battery.

[0014] Furthermore, an elastic layer is provided on the inner wall of the clamping plate, and an abutment plate with a guide portion provided on the bottom end of the inner wall of the elastic layer is provided, and the abutment plate abuts against the outer wall of the lithium battery.

[0015] Furthermore, the flexible elastic layer is made of silicone rubber material with a thickness of 2-5 mm and a Shore hardness of HA40-60; the guide portion has a 45° inclined surface structure, and a polytetrafluoroethylene wear-resistant coating is provided on the inclined surface.

[0016] The present invention has the following beneficial effects:

[0017] The present invention realizes convenient automatic welding during use by respectively arranging a discharge conveying mechanism and a loading conveying mechanism on both sides of the welding table, and arranging a first pushing mechanism and a second pushing mechanism for controlling the transfer of lithium batteries between the discharge conveying mechanism and the loading conveying mechanism of the welding table.

[0018] 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

[0019] 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.

[0020] Figure 1 This is a schematic structural diagram of the welding assembly mechanism of the present invention;

[0021] Figure 2 Schematic diagram of the structure of the welding table and the feeding and conveying mechanism of the present invention Figure 1 ;

[0022] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0023] Figure 4 Schematic diagram of the structure of the welding table and the feeding and conveying mechanism of the present invention Figure 2 ;

[0024] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0025] Figure 6 for Figure 4 The main view;

[0026] Figure 7 This is a schematic diagram of the assembly structure of the pressing and fixing frame and the lithium battery of the present invention;

[0027] Figure 8 for Figure 7 Top view

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] Lithium battery, 100; welding table, 1; unloading conveying mechanism, 3; loading conveying mechanism, 2; first pushing mechanism, 5; supporting leg, 40; box, 4; circular operating table, 41; slide, 43; shaft, 42; L-shaped bracket, 20; side baffle, 21; U-shaped mounting frame, 50; telescopic module A, 51; rectangular mounting plate, 52; telescopic module B, 53; push plate, 54; rectangular opening A, 10; rectangular opening B, 15; movable plate A, 12; protrusion, 121) telescopic module D, 14; movable push plate, 14) baffle, 11; gantry, 16; X-axis moving module, 161; Z-axis moving module, 17; mounting frame, 171; splint, 6; connecting rod, 60; connecting block, 62; pressure ring, 63; clamping plate, 61; flexible elastic layer, 64; abutment plate, 65. DETAILED DESCRIPTION

[0030] 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.

[0031] 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.

[0032] See also Figure 1 As shown, the present invention is a welding assembly mechanism for lithium batteries, including a loading and conveying mechanism 2, a plurality of lithium battery assembly stations are arranged at equal intervals along the length direction of one side of the loading and conveying mechanism 2, and a welding table 1 is provided at the discharge end of the loading and conveying mechanism 2, and a first pushing mechanism 5 is provided at the end of the loading and conveying mechanism 2 for pushing the lithium battery 100 located thereon to the welding table 1; and a unloading conveying mechanism 3 is provided on one side of the welding table 1, and a second pushing mechanism is provided on the welding table 1 for pushing the lithium battery 100 located thereon to the unloading conveying mechanism 3.

[0033] Based on the above settings, during processing, the lithium battery 100 is first assembled on the lithium battery assembly table and fixed with tape, and then the lithium battery 100 is controlled to be pushed from the lithium battery assembly table to the loading and conveying mechanism 2. When it is detected that the lithium battery 100 has moved to the end of the loading and conveying mechanism 2, the first pushing mechanism 5 is controlled to push the lithium battery 100 on the loading and conveying mechanism 2 to the welding table 1; the welding is completed under the action of the laser welding mechanism arranged on the side of the welding table 1 close to the unloading and conveying mechanism 3, and then the second pushing mechanism is used to push the lithium battery 100 thereon to the unloading and conveying mechanism 3.

[0034] The conveying directions of the unloading conveying mechanism 3 and the loading conveying mechanism 2 are the same; the moving directions of the first pushing mechanism 5 and the second pushing mechanism are perpendicular to each other.

[0035] Specifically, in the process of transportation, the electrode sheet 101 placed on the lithium battery 100 is prevented from falling due to shaking, etc. Figure 7-8 When the lithium battery assembly station of the present invention is assembled, a pressing and fixing frame is provided on the lithium battery 100 for pressing and fixing the electrode sheet 101 placed on the lithium battery 100; the pressing and fixing frame includes a clamping plate 6 located at both ends, and the two clamping plates 6 are connected by two connecting rods 60; the bottom side of the connecting rod 60 is connected to a pressing ring 63 for pressing the two ends of the electrode sheet 101 placed on the lithium battery 100 through a connecting block 62; the two ends of the clamping plate 6 are respectively provided with a clamping plate 61 that is clamped at the two ends of the lithium battery 100; and the inner wall of the clamping plate 6 is provided with an elastic layer 64, and the inner wall of the elastic layer 64 is provided with a butt plate 65 with a guide portion at the bottom end, and the butt plate 65 is pressed against the outer wall of the lithium battery 100.

[0036] In a specific embodiment, the flexible elastic layer 64 is made of silicone rubber material with a thickness of 3.5 mm and a Shore hardness of HA405. The guide portion has a 45° inclined surface structure, and a polytetrafluoroethylene wear-resistant coating is provided on the inclined surface of the guide portion.

[0037] In order to facilitate the assembly of lithium batteries 100 on the lithium battery assembly table during use, the lithium battery assembly table provided by the present invention includes a box body 4 supported by support legs 40, a circular hole is opened on the top of the box body 4, and a circular operating table 41 is connected to the bottom side of the box body 4 through a rotating motor; the circular operating table 41 rotates at the circular hole; an inclined slide 43 is connected to one side of the box body 4; and an upper surface of the box body 4 located on one side of the circular operating table 41 is provided with an axis 42 for placing a tape roll.

[0038] In order to facilitate the use of the loading and conveying mechanism 2 to convey the lithium battery 100 and prevent it from deviation during use, a side baffle 21 is fixedly installed on the side of the loading and conveying mechanism 2 away from the lithium battery assembly table through several L-shaped brackets 20.

[0039] In a specific embodiment, Figure 4-5 The first pushing mechanism 5 includes at least two U-shaped mounting frames 50 arranged at the end of the feeding conveying mechanism 2. The U-shaped mounting frames 50 are connected to a rectangular mounting plate 52 arranged along the length direction of the feeding conveying mechanism 2 through a telescopic module A (51). The bottom side of the rectangular mounting plate 52 is installed with a telescopic module B53, and the end of the telescopic module B53 is installed with a push plate 54; the telescopic direction of the telescopic module B53 is the same as the conveying direction of the feeding conveying mechanism 2.

[0040] In a specific embodiment, Figure 2-3 The second pushing mechanism includes a rectangular opening A10 provided on the welding table 1, and rectangular openings B15 are provided on the welding table 1 on both sides of the rectangular opening A10; it also includes a movable plate A12, and a protrusion 121 that movably passes through the rectangular opening A10 and the rectangular opening B15 is provided on one side of the movable plate A12; a linear module is provided below the welding table 1 located at the rectangular opening A10 along the length direction of the rectangular opening A10, and a protrusion 121 is connected to the slider of the linear module; a guide rod is provided between the two ends of the rectangular opening B15, and the guide rod movably passes through the protrusion 121; a baffle 11 is provided on the upper surface of the welding table 1, and the baffle 11 and the rectangular opening B15 have the same length direction; one side of the movable plate A12 is connected to a movable pushing plate 14 through a plurality of telescopic modules D (14).

[0041] Based on the setting of the baffle 11, the second pushing mechanism and the first pushing mechanism 5, when in use, the lithium battery 100 located on the loading and conveying mechanism 2 is pushed onto the welding table 1 by the first pushing mechanism 5 until one side of the lithium battery 100 rests on the baffle 11, and then the second pushing mechanism is controlled to drive the lithium battery 100 to move to the specified position below the laser welding mechanism on the welding table 1, and then the laser welding mechanism is used for welding. After the welding is completed, the second pushing mechanism is used to push the lithium battery 100 located on the welding table 1 onto the unloading and conveying mechanism 3.

[0042] When the second pushing mechanism is in use, it first controls the slider of the linear module to move and drive the movable plate A12 to move until the slider of the linear module moves to the top, and then controls the telescopic module D (14) to extend and drive the movable push plate 14 to move and push the lithium battery 100 located on the welding table 1 to the unloading conveying mechanism 3.

[0043] Specifically, the length direction of the rectangular opening A10 and the rectangular opening B15 is perpendicular to the conveying direction of the unloading conveying mechanism 3 and the loading conveying mechanism 2.

[0044] In a specific embodiment, Figure 2 and 6The laser welding mechanism includes a gantry 16 arranged on the welding table 1, an X-axis moving module 161 is provided on one side of the gantry 16, the X-axis moving module 161 is connected to the Z-axis moving module 17, the Z-axis moving module 17 is connected to the mounting frame 171 that moves along the vertical direction, and the laser welding head is installed on the mounting frame 171.

[0045] 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.

[0046] 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 welding assembly mechanism for lithium batteries, characterized in that: It comprises a welding table (1) for welding lithium batteries (100), a material unloading conveying mechanism (3) installed on one side of the welding table (1), and a material loading conveying mechanism (2) installed on the other side of the welding table (1); The end of the loading and conveying mechanism (2) is provided with a first pushing mechanism (5) for pushing the lithium battery (100) located thereon onto the welding table (1); A laser welding mechanism is provided on one side of the welding table (1) close to the unloading conveying mechanism (3), and a second pushing mechanism is also provided on the welding table (1) for pushing the lithium battery (100) located thereon onto the unloading conveying mechanism (3); The unloading conveying mechanism (3) and the loading conveying mechanism (2) have the same conveying direction; The movement directions of the first pushing mechanism (5) and the second pushing mechanism are perpendicular; A plurality of lithium battery assembly tables are provided at equal intervals along the length direction of one side of the feeding and conveying mechanism (2), wherein the lithium battery assembly table comprises a box body (4) supported by supporting legs (40), a circular hole is provided on the top of the box body (4), and a circular operating table (41) is connected to the bottom side of the box body (4) via a rotating motor; the circular operating table (41) rotates at the circular hole; an inclined slide (43) is connected to one side of the box body (4); a shaft (42) for placing a tape roll is provided on the upper surface of the box body (4) located on one side of the circular operating table (41); The lithium battery (100) is provided with a clamping and fixing frame for clamping and fixing an electrode sheet (101) placed on the lithium battery (100); the clamping and fixing frame includes clamping plates (6) located at both ends, and the two clamping plates (6) are connected by two connecting rods (60); the bottom side of the connecting rod (60) is connected to a pressure ring (63) for clamping the two ends of the electrode sheet (101) placed on the lithium battery (100) through a connecting block (62); and the two ends of the clamping plate (6) are respectively provided with a clamping plate (61) clamped on the two ends of the lithium battery (100).

2. A lithium battery welding assembly mechanism according to claim 1, characterized in that: A side baffle (21) is fixedly mounted on the other side of the loading and conveying mechanism (2) via a plurality of L-shaped brackets (20).

3. A lithium battery welding assembly mechanism according to claim 1, characterized in that: The first pushing mechanism (5) comprises at least two U-shaped mounting frames (50) arranged at the end of the feeding conveying mechanism (2), the U-shaped mounting frames (50) being connected to a rectangular mounting plate (52) arranged along the length direction of the feeding conveying mechanism (2) via a telescopic module A (51), a telescopic module B (53) being installed on the bottom side of the rectangular mounting plate (52), and a push plate (54) being installed at the end of the telescopic module B (53); the telescopic direction of the telescopic module B (53) is the same as the conveying direction of the feeding conveying mechanism (2).

4. The lithium battery welding assembly mechanism according to claim 1, characterized in that: The second pushing mechanism comprises a rectangular opening A (10) provided on the welding table (1), and rectangular openings B (15) are provided on the welding table (1) on both sides of the rectangular opening A (10); It also includes a movable plate A (12), one side of which is provided with a protrusion (121) that movably passes through the rectangular opening A (10) and the rectangular opening B (15); A linear module is provided below the welding table (1) located at the rectangular opening A (10) along the length direction of the rectangular opening A (10), and a protrusion (121) is connected to a slider of the linear module; A guide rod is provided between the two ends of the rectangular opening B (15), and the guide rod movably passes through the protruding portion (121).

5. A lithium battery welding assembly mechanism according to claim 4, characterized in that: The length directions of the rectangular opening A (10) and the rectangular opening B (15) are perpendicular to the conveying directions of the unloading conveying mechanism (3) and the loading conveying mechanism (2); One side of the movable plate A (12) is connected to a movable push plate (14) via a plurality of telescopic modules D. A baffle (11) is provided on the upper surface of the welding table (1). The baffle (11) and the rectangular opening B (15) have the same length direction.

6. The lithium battery welding assembly mechanism according to claim 1, characterized in that: The laser welding mechanism comprises a gantry (16) arranged on a welding table (1), an X-axis moving module (161) being provided on one side of the gantry (16), a Z-axis moving module (17) being connected to the X-axis moving module (161), a mounting frame (171) movable in a vertical direction being connected to the Z-axis moving module (17), and a laser welding head being mounted on the mounting frame (171).

7. The lithium battery welding assembly mechanism according to claim 1, characterized in that: An elastic layer (64) is provided on the inner wall of the clamping plate (6), and a support plate (65) with a guide portion provided at the bottom end is provided on the inner wall of the elastic layer (64), and the support plate (65) is supported against the outer wall of the lithium battery (100).

8. The lithium battery welding assembly mechanism according to claim 7, characterized in that: The elastic layer (64) is flexible and made of silicone rubber material with a thickness of 2-5 mm and a Shore hardness of HA40-60; the guide portion has a 45° inclined surface structure, and a polytetrafluoroethylene wear-resistant coating is provided on the inclined surface.

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