A horizontal automatic penetration welding equipment for large cylindrical lithium batteries with full-ear tabs

Abstract

The present invention relates to the field of lithium battery welding technology, and in particular to a horizontal automatic penetration welding device for a large cylindrical lithium battery with full-ear tabs, which includes a swing rod pushing assembly, a galvanometer welding machine, a battery cell positioning support, and a battery cell pushing support; the galvanometer welding machine, the battery cell positioning support, and the battery cell pushing support are arranged in sequence along a straight line; a slide is slidably connected to the battery cell pushing support; a push rod is connected to the slide; a battery cell positioning sleeve is fixed on the battery cell positioning support; and the swing rod pushing assembly can push the slide to slide in the direction of the battery cell positioning sleeve. When using this device, the structure can weld batteries of different lengths without changing the jig, so that the products welded by the battery cell welding equipment are more diverse.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery welding, and in particular to a horizontal automatic penetration welding device for a large cylindrical lithium battery with full-tab lugs. Background Art

[0002] The penetration welding mechanism is commonly used in the welding of lithium batteries. Before welding the battery, the positioning mechanism needs to be used to position and orient the battery, clamp and fix the battery, and transport it to the beam range of the penetration welding machine. Then the penetration welding machine is used for welding. The existing penetration welding machine positioning mechanism uses a jig to position both ends. This positioning mechanism cannot be adjusted according to the length change of the battery cell. Each battery cell of different sizes needs to replace a different size jig, which delays the production progress. Summary of the invention

[0003] The purpose of the present invention is to provide a horizontal automatic penetration welding device for a large cylindrical lithium battery with full tabs in view of the defects and shortcomings of the prior art.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] The invention discloses a horizontal automatic penetration welding device for a large cylindrical lithium battery with full tabs, which comprises a swing rod driving assembly, a galvanometer welding machine, a battery cell positioning support and a battery cell ejection support; the galvanometer welding machine, the battery cell positioning support and the battery cell ejection support are arranged in sequence along a straight line direction;

[0006] The battery cell ejection support is slidably connected with a slide; the slide is connected with a push rod; the battery cell positioning support is fixed with a battery cell positioning sleeve; the rocker rod pushing assembly can push the slide to slide along the direction of the battery cell positioning sleeve.

[0007] Furthermore, the rocker arm pushing assembly includes a front fixed seat, a rocker arm rotatably connected to the front fixed seat, and a slide plate slidably connected to the front fixed seat; a push rod is fixed between the slide plate and the slide; a connecting plate is fixed on the slide plate; and the end of the rocker arm can slide along the height direction of the connecting plate.

[0008] Furthermore, the connecting plate is provided with a strip hole extending in the height direction; the end of the swing rod is rotatably connected to a roller embedded in the strip hole; the diameter of the roller is equal to the width of the strip hole.

[0009] Furthermore, a cylinder and a guide rail are fixed on the slide; a push block is slidably connected to the guide rail; the push rod is fixed on the push block; and the piston rod end of the cylinder is fixed on the push block.

[0010] Furthermore, the swing rod is in an "L" shape.

[0011] Furthermore, a push rod guide seat is fixed on the slide; and a connecting rod slidably connected to the push rod guide seat is fixed between the push rod and the push block.

[0012] Furthermore, a support rod is fixed between the galvanometer welding machine and the battery cell positioning support.

[0013] Furthermore, a sleeve seat guide rail is fixed on the battery cell positioning support; a sleeve seat is slidably connected to the sleeve seat guide rail; the battery cell positioning sleeve is connected to the sleeve seat; and a locking member that can be locked on the battery cell positioning support is fixed on the sleeve seat.

[0014] Furthermore, the battery cell positioning sleeve is fixed on the sleeve seat by locking with a plurality of bolts.

[0015] Furthermore, a smoke exhaust pipe is fixed on the battery cell positioning support; and the smoke exhaust pipe is connected to the battery cell positioning sleeve.

[0016] After adopting the above structure, the beneficial effects of the present invention are as follows: the horizontal automatic penetration welding equipment for large cylindrical lithium batteries with full-ear tabs described in the present invention, when in use, the battery cell is transported between the push rod and the battery cell positioning sleeve; the rocker push assembly pushes the push rod on the slide to make a linear motion, and the battery cell is pushed into the battery cell positioning sleeve for positioning through the push rod; then the battery cell positioned in the battery cell positioning sleeve is welded by the light beam generated by the galvanometer welding machine; this structure can weld battery cells of different lengths without changing the jig, making the products welded by the battery cell welding equipment more diversified. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is the front view of the galvanometer welding machine;

[0019] Figure 3 This is the left view of the galvanometer welding machine;

[0020] Figure 4 It is a structural diagram of the mechanism for adjusting the initial position of the ejector rod connected to the battery cell ejection support;

[0021] Figure 5 It is a structural diagram of the swing arm and the slide plate connected to the front fixed seat;

[0022] Description of reference numerals:

[0023] 1. Cell positioning support; 2. Push rod guide seat; 3. Connecting push block; 4. Push rod; 5. Slide plate;

[0024] 6. Cylinder; 7. Ejector rod; 8. Galvanometer welding machine; 801. Support rod; 9. Swing rod;

[0025] 10. Battery cell ejection support; 11. Smoke exhaust pipe; 12. Battery cell positioning sleeve; 13. Slide table;

[0026] 14. Push block; 15. Connecting rod; 16. Guide rail; 17. Front fixed seat; 18. Slide rail;

[0027] 19. Connecting plate; 1901. Strip hole; 20. Roller; 21. Sleeve seat; 22. Sleeve seat guide rail;

[0028] A. Light beam; B. Battery cell. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] like Figures 1 to 5 As shown, the horizontal automatic penetration welding equipment for large cylindrical lithium batteries with full tabs of the present invention comprises a swing rod driving assembly, a galvanometer welding machine 8, a battery cell positioning support 1 and a battery cell ejection support 10; the galvanometer welding machine 8, the battery cell positioning support 1 and the battery cell ejection support 10 are arranged in sequence along a straight line direction;

[0031] The cell ejection support 10 is slidably connected with a slide 13; the slide 13 is connected with a push rod 7; the cell positioning support 1 is fixed with a cell positioning sleeve 12; the swing rod pushing assembly can push the slide 13 to slide along the direction of the cell positioning sleeve 12;

[0032] The galvanometer welding machine 8 has no essential difference from the prior art, so it is not described in detail; the battery cell B is transported between the push rod 7 and the battery cell positioning sleeve 12; the rocker push assembly pushes the push rod 7 on the slide 13 to make a linear motion, and the battery cell B is pushed into the battery cell positioning sleeve 12 for positioning through the push rod 7; then the light beam A generated by the galvanometer welding machine 8 is used to weld the battery cell B positioned in the battery cell positioning sleeve 12; this structure can weld battery cells of different lengths without changing the jig, making the products welded by the battery cell welding equipment more diversified.

[0033] As a preferred embodiment of the present invention, the swing rod pushing assembly includes a front fixed seat 17, a swing rod 9 rotatably connected to the front fixed seat 17, and a slide plate 5 slidably connected to the front fixed seat 17; a push rod 4 is fixed between the slide plate 5 and the slide table 13; a connecting plate 19 is fixed on the slide plate 5; the end of the swing rod 9 can slide along the height direction of the connecting plate 19;

[0034] A slide rail 18 is fixed on the front fixed seat 17; a slider slidably connected to the slide rail 18 is fixed at the bottom of the slide 5; an external power mechanism pushes the rocker arm 9 to swing, so that the rocker arm 9 slides along the height direction of the connecting plate 19, and the horizontal direction of the rocker arm 9 pushes the slide 5 to slide along the slide rail 18; the slide table 13 is pushed to slide by the push rod 4.

[0035] As a preferred embodiment of the present invention, the connecting plate 19 is provided with a strip hole 1901 extending in the height direction; the end of the rocker arm 9 is rotatably connected to a roller 20 embedded in the strip hole 1901; the diameter of the roller 20 is equal to the width of the strip hole 1901; by inserting the rotatable roller 20 into the strip hole 1901, the end of the rocker arm 9 can slide in the height direction of the connecting plate 19.

[0036] As a preferred embodiment of the present invention, a cylinder 6 and a guide rail 16 are fixed on the slide 13; a push block 14 is slidably connected to the guide rail 16; the push rod 7 is fixed on the push block 14; the piston rod end of the cylinder 6 is fixed on the push block 14; after the cylinder 6 is started, the push block 14 and the push rod 7 are driven to slide along the length direction of the guide rail 16; the initial position of the push rod 7 is adjusted; so that after the battery cell B enters between the push rod 7 and the battery cell positioning sleeve 12, one end of the collector plate of the battery cell B is closer to the push rod 7, thereby reducing the stroke of the slide plate 5 during the process of pushing the battery cell B into the battery cell positioning sleeve 12; and improving the efficiency of pushing the battery cell B into the battery cell positioning sleeve 12.

[0037] As a preferred embodiment of the present invention, the swing rod 9 is in an "L" shape.

[0038] As a preferred embodiment of the present invention, a push rod guide seat 2 is fixed on the slide 13; a connecting rod 15 slidably connected to the push rod guide seat 2 is fixed between the push rod 7 and the push block 14;

[0039] The push rod 7 slides on the push rod guide seat 2 through the connecting rod 15 to achieve the guidance of the push rod 7.

[0040] As a preferred embodiment of the present invention, a support rod 801 is fixed between the galvanometer welding machine 8 and the battery cell positioning support 1; the support rod 801 limits the battery cell positioning support 1, so that the gap between the battery cell positioning support 1 and the galvanometer welding machine 8 can always be kept consistent; because there is a structure for limiting the battery cell B at the end of the battery cell positioning sleeve 12, the limiting structure prevents the battery cell B from moving further away from one end of the collecting plate (the end to be welded) and reaching the limiting structure, thereby ensuring that the welding position of each battery cell B can reach the position with the same intensity of the light beam A.

[0041] As a preferred embodiment of the present invention, a sleeve seat guide rail 22 is fixed on the battery cell positioning support 1; a sleeve seat 21 is slidably connected to the sleeve seat guide rail 22; the battery cell positioning sleeve 12 is connected to the sleeve seat 21; a locking member capable of being locked on the battery cell positioning support 1 is fixed on the sleeve seat 21; the locking member is a screw threadedly connected to the sleeve seat 21, and after the screw is tightened against the indentation on the surface of the battery cell positioning support 1, the sleeve seat 21 cannot slide relative to the sleeve seat guide rail 22; when it is necessary to adjust the distance between the battery cell positioning sleeve 12 and the galvanometer welding machine 8 to adjust the light intensity of the welding point, the locking member is loosened to allow the sleeve seat 21 to slide relative to the sleeve seat guide rail 22.

[0042] As a preferred embodiment of the present invention, the battery cell positioning sleeve 12 is fixed on the sleeve seat 21 by multiple bolts; according to the different diameters of the battery cells B, the battery cell positioning sleeve 12 with different inner hole sizes can be replaced by loosening the bolts, so that more specifications of battery cells B can be adapted.

[0043] As a preferred embodiment of the present invention, a smoke exhaust pipe 11 is fixed on the battery cell positioning support 1; the smoke exhaust pipe 11 is connected to the battery cell positioning sleeve 12; the smoke exhaust pipe 11 is connected to the negative pressure equipment, and during welding, the smoke or dust in the battery cell positioning sleeve 12 is discharged to the outside of the battery cell positioning sleeve 12 through the smoke exhaust pipe 11.

[0044] When using this device, the battery cell is transported between the push rod and the battery cell positioning sleeve; the external power mechanism pushes the swing rod to swing, the roller slides in the strip hole, and the horizontal direction of the swing rod pushes the slide plate to slide along the slide rail, and the push rod pushes the push rod on the slide to make a linear motion, and the battery cell is pushed into the battery cell positioning sleeve for positioning through the push rod; the beam generated by the galvanometer welding machine welds the battery cell positioned in the battery cell positioning sleeve; this structure can weld battery cells of different lengths without changing the jig, making the products welded by the battery cell welding equipment more diversified. Before the product enters between the push rod and the battery cell positioning sleeve; after the cylinder is started, the push block and the push rod are driven to slide along the length direction of the guide rail; the initial position of the push rod is adjusted; so that after the battery cell enters between the push rod and the battery cell positioning sleeve, one end of the collector plate of the battery cell is closer to the push rod.

[0045] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A horizontal automatic penetration welding equipment for large cylindrical lithium batteries with full tabs, characterized by: It comprises a swing rod pushing assembly, a galvanometer welding machine (8), a battery cell positioning support (1) and a battery cell pushing support (10); the galvanometer welding machine (8), the battery cell positioning support (1) and the battery cell pushing support (10) are arranged in sequence along a straight line direction; The battery cell ejection support (10) is slidably connected to a slide table (13); the slide table (13) is connected to a push rod (7); a battery cell positioning sleeve (12) is fixed to the battery cell positioning support (1); the swing rod pushing assembly is capable of pushing the slide table (13) to slide in the direction of the battery cell positioning sleeve (12); The swing rod pushing assembly comprises a front fixed seat (17), a swing rod (9) rotatably connected to the front fixed seat (17), and a slide plate (5) slidably connected to the front fixed seat (17); a push rod (4) is fixed between the slide plate (5) and the slide table (13); a connecting plate (19) is fixed to the slide plate (5); and the end of the swing rod (9) can slide along the height direction of the connecting plate (19); The connecting plate (19) is provided with a strip-shaped hole (1901) extending in the height direction; the end of the swing rod (9) is rotatably connected to a roller (20) embedded in the strip-shaped hole (1901); the diameter of the roller (20) is equal to the width of the strip-shaped hole (1901); A cylinder (6) and a guide rail (16) are fixed on the slide (13); a push block (14) is slidably connected to the guide rail (16); the push rod (7) is fixed on the push block (14); and the piston rod end of the cylinder (6) is fixed on the push block (14).

2. According to claim 1, a horizontal automatic penetration welding equipment for large cylindrical lithium batteries with full tabs, characterized in that: The swing rod (9) is in an "L" shape.

3. According to claim 2, a horizontal automatic penetration welding equipment for large cylindrical lithium batteries with full tabs, characterized in that: A push rod guide seat (2) is fixed on the slide (13); a connecting rod (15) slidably connected to the push rod guide seat (2) is fixed between the push rod (7) and the push block (14).

4. According to claim 1, a horizontal automatic penetration welding device for large cylindrical lithium batteries with full tabs, characterized in that: A support rod (801) is fixed between the galvanometer welding machine (8) and the battery cell positioning support (1).

5. The horizontal automatic penetration welding equipment for large cylindrical lithium batteries with full tabs according to claim 1 is characterized in that: A sleeve seat guide rail (22) is fixed on the battery cell positioning support (1); a sleeve seat (21) is slidably connected to the sleeve seat guide rail (22); the battery cell positioning sleeve (12) is connected to the sleeve seat (21); and a locking piece capable of being locked on the battery cell positioning support (1) is fixed on the sleeve seat (21).

6. The horizontal automatic penetration welding equipment for large cylindrical lithium batteries with full tabs according to claim 5 is characterized in that: The battery core positioning sleeve (12) is fixed on the sleeve seat (21) by means of a plurality of bolts.

7. The horizontal automatic penetration welding equipment for large cylindrical lithium batteries with full tabs according to claim 1 is characterized in that: A smoke exhaust pipe (11) is fixed on the battery cell positioning support (1); the smoke exhaust pipe (11) is connected to the battery cell positioning sleeve (12).

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