Lithium ion battery pack welding tool convenient to adjust

By designing a lithium-ion battery pack welding tool for easy adjustment, the adaptation of modules of different sizes is achieved using structures such as mobile blocks, bidirectional screws, guide rods, and motors, which solves the problem of poor compatibility of existing tooling and improves the replacement efficiency and scope of application.

CN119566697AInactive Publication Date: 2025-03-07ANHUI FENGLI ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202411770819.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-03-07
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing lithium-ion battery pack welding tooling is not compatible with multiple series of products, resulting in frequent replacement of positioning tooling during production of small batches and multiple varieties of battery modules, which is inefficient and has great damage to the strength of structural parts.

Method used

A lithium-ion battery pack welding tool for easy adjustment is designed. By setting up structures such as moving blocks, bidirectional screws, guide rods, motors, etc., the movement of the side plate and the adaptation of different widths or lengths of the battery modules is achieved. The movable connection between the bottom plate and the base is achieved through the insertion rods, slots, handles and other structures, making it easier to replace modules with large size differences.

Benefits of technology

It realizes positioning different square shell modules on the same base plate, without replacing the base plate or disassembly of components, improves the replacement efficiency, reduces the strength damage of the structural parts, and provides a larger scope of replacement application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The lithium ion battery pack welding tool convenient to adjust comprises a bottom plate, the bottom plate is installed on a base, an inserting rod is arranged below the bottom plate, and the inserting rod is fixed in an inserting groove in the upper portion of the base through a connecting mechanism; a through hole is formed in the bottom plate, the connecting mechanism comprises a releasing rod inserted into the through hole, the releasing rod is connected with a handle through a first spring, a side plate is installed on the bottom plate, a lifting block is arranged in a movable groove in the middle of the side plate, an air cylinder is arranged below the lifting block, and a limiting support is installed on the inner side of the lifting block. Positioning of different square shell modules on the same bottom plate can be achieved, the whole bottom plate does not need to be replaced or parts do not need to be disassembled, the remodeling efficiency is improved, and damage to the strength of structural parts is reduced; and the whole bottom plate can be disassembled and replaced, the device is also suitable for modules with large size differences, and the wider remodeling application range is provided.
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Description

Technical Field

[0001] The invention relates to the technical field of battery pack welding equipment, in particular to a lithium ion battery pack welding tool which is easy to adjust. Background Art

[0002] At present, lithium-ion soft-pack batteries are increasingly being used in the field of portable mobile devices due to their large capacity, good safety performance, small size, and flexible size design. Generally, lithium-ion soft-pack battery packs are composed of multiple small-capacity single cells combined into large-capacity battery packs or modules in a multi-series and multi-parallel manner. At present, when the larger soft-pack battery packs are connected in series and parallel, the welding between the pole ears is fixed by laser welding, and the modules are stacked. After the module stacking is completed, the module needs to be placed on the welding positioning tooling. Most positioning tools in the prior art can only be used for special purposes and cannot be compatible with multiple series of products. Small batch and multi-variety battery module production often occurs, so battery module manufacturers often encounter module welding changeovers. In the prior art, if a changeover is required, the original tray generally needs to be removed, or various positioning modules and positioning plates need to be disassembled, so that the changeover efficiency is low, there are many repetitive actions, it is time-consuming and labor-intensive, and the positioning components are disassembled multiple times, which will cause greater damage to the strength of the structural parts and make maintenance difficult. To this end, we propose a lithium-ion battery pack welding tooling that is easy to adjust. Summary of the invention

[0003] The object of the present invention is to provide a lithium-ion battery pack welding tool that is easy to adjust to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: a conveniently adjustable lithium-ion battery pack welding tool, comprising a bottom plate, the bottom plate is mounted on a base, a plug rod is arranged below the bottom plate, and the plug rod is fixed in a slot above the base through a connecting mechanism;

[0005] The connecting mechanism includes a release rod inserted in the through hole, the release rod is connected to the handle via a first spring, a side plate is installed on the bottom plate, a lifting block is arranged in the movable groove in the middle of the side plate, a cylinder is arranged below the lifting block, a limiting bracket is installed on the inner side of the lifting block, a rotating rod is screwed on the limiting bracket, a pressure plate is arranged at the bottom of the rotating rod, a moving block is arranged at the bottom of the side plate, the moving block is clamped in the transverse groove on the bottom plate, the moving block is screwed on the bidirectional screw rod, and the end of the bidirectional screw rod is connected to a motor.

[0006] Preferably, a support assembly is arranged above the base plate, the support assembly includes a support plate, a rotating motor is arranged above the support plate, a workbench is arranged on the top of the rotating motor, a baffle is arranged on the workbench, an electric push rod is arranged on the outer side of the baffle, a positioning block is arranged below the baffle, and the positioning block is movably clamped in the positioning groove.

[0007] Preferably, casters are provided at the bottom of the base, and a supporting mechanism is installed on the base.

[0008] Preferably, the support mechanism comprises an adjusting screw threadedly connected to the base, and a foot is provided at the bottom of the adjusting screw.

[0009] Preferably, a locking groove is provided on the side of the insertion rod, a sliding cavity is provided in the base at the same height as the locking groove, a locking rod is connected to the sliding cavity through a second spring, and the bottom of the release rod is clamped in the notch groove above the locking rod.

[0010] Preferably, the bottom end of the first spring is fixedly connected to the top of the base.

[0011] Preferably, the end of the pressing plate is movably clamped in the anti-deflection groove on the inner side of the limiting bracket.

[0012] Preferably, a guide rod is arranged in parallel on the upper side of the bidirectional screw rod, and the guide rod is movably inserted into the circular hole on the side of the moving block.

[0013] Preferably, a restraining rod is provided at the bottom of the workbench, and the restraining rod is rotatably clamped in an annular groove on the supporting plate.

[0014] Compared with the prior art, the invention has the following beneficial effects: the lithium-ion battery pack welding tooling that is easy to adjust has a simple and reasonable structural design. By arranging a moving block, a bidirectional screw rod, a guide rod, a motor and other structures, the two sets of side plates are driven by the motor to move closer to or away from the battery module. The two limit brackets are used to adapt to different widths or lengths of the battery module, and different square shell modules can be positioned on the same bottom plate without replacing the bottom plate as a whole or disassembling parts, thereby improving the efficiency of changing the model and reducing the damage to the strength of the structural parts.

[0015] By setting structures such as plug rods, slots, handles, release rods, and locking rods, the bottom plate and the base are connected flexibly, which is convenient for replacing modules with large size differences. The plug-in structure and locking structure composed of the above mechanisms can realize the disassembly and replacement of the bottom plate as a whole, which is also suitable for modules with large size differences, providing a wider range of application for replacement;

[0016] By arranging a cylinder in the movable groove of the side plate, the height of the lifting block and the limit bracket can be adjusted, and by arranging a rotating rod, the height of the pressing plate can be adjusted, and then the effect of pressing and fixing the workpiece from the top can be achieved through the cooperation of the above mechanisms;

[0017] By setting a support mechanism consisting of a support plate and a workbench on the bottom plate, when the workpiece is placed on the workbench, the electric push rod can push the baffle to clamp the workpiece from both sides, and the rotating motor as an active driving mechanism can drive the workbench to rotate, thereby achieving the effect of adjusting the angle of the workpiece, solving the problem that heavy workpieces are difficult to rotate and adjust, and improving the adjustment efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at A in the middle;

[0020] Figure 3 It is a schematic diagram of the structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the top structure of the workbench of the present invention.

[0023] In the figure: 1, bottom plate 11, base 12, caster 13, adjustment screw 14, foot 15, plug rod 16, slot 17, handle 18, first spring 19, release rod 2, locking groove 21, through hole 22, locking rod 23, notch groove 24, sliding cavity 25, second spring 26, side plate 27, movable groove 28, lifting block 29, cylinder 3, limit bracket 31, rotating rod 32, pressure plate 33, anti-bias groove 34, moving block 35, bidirectional screw rod 36, guide rod 37, motor 38, support plate 39, rotating motor 4, workbench 41, restraining rod 42, annular groove 43, baffle 44, electric push rod 45, positioning block 46, positioning groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0025] Embodiment 1:

[0026] See also Figure 1-5 The present invention provides a technical solution: a lithium-ion battery pack welding tool that is easy to adjust, comprising a bottom plate 1, the bottom plate 1 is mounted on a base 11, a plug rod 15 is arranged below the bottom plate 1, and the plug rod 15 is fixed in a slot 16 above the base 11 through a connecting mechanism;

[0027] The connecting mechanism includes a release rod 19 inserted in the through hole 21, and the release rod 19 is connected to the handle 17 through a first spring 18. A side plate 26 is installed on the bottom plate 1, and a lifting block 28 is arranged in a movable groove 27 in the middle of the side plate 26. A cylinder 29 is arranged below the lifting block 28. A limit bracket 3 is installed on the inner side of the lifting block 28, and a rotating rod 31 is screwed on the limit bracket 3. A pressing plate 32 is arranged at the bottom of the rotating rod 31. A moving block 34 is arranged at the bottom of the side plate 26, and the moving block 34 is clamped in the transverse groove on the bottom plate 1. The moving block 34 is screwed on the bidirectional screw rod 35, and the end of the bidirectional screw rod 35 is connected to a motor 37.

[0028] By arranging a cylinder 29 in the movable groove 27 on the side plate 26, the height of the lifting block 28 and the limit bracket 3 can be adjusted, and by arranging a rotating rod 31, the height of the pressing plate 32 can be adjusted, and then the effect of pressing and fixing the workpiece from the top can be achieved through the cooperation of the above mechanisms;

[0029] In the above solution, casters 12 are provided at the bottom of the base 11, and a supporting mechanism is installed on the base 11.

[0030] In the above solution, the support mechanism includes an adjusting screw 13 threadedly connected to the base 11 , and a foot 14 is provided at the bottom of the adjusting screw 13 .

[0031] In the above scheme, a locking groove 2 is provided on the side of the insertion rod 15, and a sliding cavity 24 is provided in the base 11 at the same height as the locking groove 2. A locking rod 22 is connected to the sliding cavity 24 through a second spring 25, and the bottom of the release rod 19 is clamped in the notch groove 23 above the locking rod 22.

[0032] By providing structures such as the insert rod 15, the slot 16, the handle 17, the release rod 19, and the locking rod 22, the bottom plate 1 is movably connected to the base 11, which is convenient for replacing modules with large size differences. The plug-in structure and the locking structure composed of the above-mentioned mechanisms can realize the disassembly and replacement of the bottom plate 1 as a whole, and are also suitable for modules with large size differences, providing a wider range of application for replacement;

[0033] In the above solution, the bottom end of the first spring 18 is fixedly connected to the top of the base 11 .

[0034] In the above solution, the end of the pressing plate 32 is movably engaged in the anti-deflection groove 33 on the inner side of the limiting bracket 3 .

[0035] In the above scheme, a guide rod 36 is arranged parallel to the upper side of the bidirectional screw rod 35, and the guide rod 36 is movably inserted into the circular hole on the side of the moving block 34. By setting the moving block 34, the bidirectional screw rod 35, the guide rod 36, the motor 37 and other structures, the two sets of side plates 26 are driven by the motor 37 to move closer to or away from the battery module, and the two limit brackets 3 are used to adapt to the different widths or lengths of the battery module, so that different square shell modules can be positioned on the same bottom plate 1 without replacing the bottom plate 1 as a whole or disassembling parts, thereby improving the efficiency of changing the model and reducing the damage to the strength of the structural parts;

[0036] This easily adjustable lithium-ion battery pack welding tool can adjust the height of the lifting block 28 and the limit bracket 3 by arranging a cylinder 29 in the movable groove 27 on the side plate 26, and can adjust the height of the pressing plate 32 by arranging a rotating rod 31, thereby achieving the effect of pressing and fixing the workpiece from the top through the cooperation of the above mechanisms;

[0037] By providing structures such as the insert rod 15, the slot 16, the handle 17, the release rod 19, and the locking rod 22, the bottom plate 1 is movably connected to the base 11, which is convenient for replacing modules with large size differences. The plug-in structure and the locking structure composed of the above-mentioned mechanisms can realize the disassembly and replacement of the bottom plate 1 as a whole, and are also suitable for modules with large size differences, providing a wider range of application for replacement;

[0038] The user manually presses the handle 17 so that the bottom of the insertion rod 15 gradually enters the notch groove to squeeze the locking rod 22, thereby causing the end of the locking rod 22 to disengage from the locking groove 2. At this time, the insertion rod 15 can be taken out of the slot 16. By setting the insertion rod 15, the slot 16, the handle 17, the release rod 19, the locking rod 22 and other structures, the bottom plate 1 and the base 11 are movably connected, which is convenient for replacing modules with large size differences. The plug-in structure and the locking structure composed of the above-mentioned mechanism can realize the disassembly and replacement of the bottom plate 1 as a whole, and it is also suitable for modules with large size differences, providing a larger range of application for replacement;

[0039] Embodiment 2:

[0040] See also Figure 1-5The present invention provides a technical solution: a lithium-ion battery pack welding tool that is easy to adjust. On the basis of Example 1, a support assembly is arranged above the bottom plate 1, and the support assembly includes a support plate 38, a rotating motor 39 is arranged above the support plate 38, and a workbench 4 is arranged on the top of the rotating motor 39. A baffle 43 is arranged on the workbench 4, and an electric push rod 44 is arranged outside the baffle 43. A positioning block 45 is arranged below the baffle 43, and the positioning block 45 is movably engaged in the positioning groove 46. The electric push rod 44 is fixedly installed on the support plate 38.

[0041] By arranging a support mechanism consisting of a support plate 38 and a workbench 4 on the base plate 1, when the workpiece is placed on the workbench 4, the baffle 43 can be pushed by the electric push rod 44 to clamp and fix the workpiece from both sides, and the rotating motor 39 is used as an active driving mechanism to drive the workbench 4 to rotate, thereby achieving the effect of adjusting the angle of the workpiece, solving the problem that heavy workpieces are difficult to rotate and adjust, and improving the adjustment efficiency of the equipment.

[0042] In the above solution, a restraining rod 41 is provided at the bottom of the workbench 4, and the restraining rod 41 is rotatably clamped in the annular groove 42 on the support plate 38. By providing the matched restraining rod 41 and the annular groove 42, the stability of the workbench 4 during rotation is further improved.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveniently adjustable lithium-ion battery pack welding tool, comprising a base plate (1), characterized in that: The bottom plate (1) is mounted on a base (11), an insertion rod (15) is provided below the bottom plate (1), and the insertion rod (15) is fixed in a slot (16) above the base (11) via a connecting mechanism; The connection mechanism comprises a release rod (19) inserted into the through hole (21), the release rod (19) being connected to the handle (17) via a first spring (18), a side plate (26) being mounted on the bottom plate (1), a lifting block (28) being arranged in a movable groove (27) in the middle of the side plate (26), a cylinder (29) being arranged below the lifting block (28), a limit bracket (3) being mounted inside the lifting block (28), a rotating rod (31) being screwed onto the limit bracket (3), a pressing plate (32) being arranged at the bottom of the rotating rod (31), a moving block (34) being arranged at the bottom of the side plate (26), the moving block (34) being clamped into a transverse groove on the bottom plate (1), the moving block (34) being screwed onto a bidirectional screw rod (35), and a motor (37) being connected to the end of the bidirectional screw rod (35).

2. The easily adjustable lithium-ion battery pack welding tool according to claim 1, characterized in that: A support assembly is arranged above the base plate (1), and the support assembly comprises a support plate (38). A rotating motor (39) is arranged above the support plate (38). A workbench (4) is arranged on the top of the rotating motor (39). A baffle (43) is arranged on the workbench (4). An electric push rod (44) is arranged outside the baffle (43). A positioning block (45) is arranged below the baffle (43), and the positioning block (45) is movably engaged in the positioning groove (46).

3. The easily adjustable lithium-ion battery pack welding tool according to claim 1, characterized in that: A caster (12) is provided at the bottom of the base (11), and a supporting mechanism is installed on the base (11).

4. The easily adjustable lithium-ion battery pack welding tool according to claim 3, characterized in that: The supporting mechanism comprises an adjusting screw rod (13) threadedly connected to a base (11), and a foot (14) is provided at the bottom of the adjusting screw rod (13).

5. The easily adjustable lithium-ion battery pack welding tool according to claim 1, characterized in that: A locking groove (2) is provided on the side of the insertion rod (15), a sliding cavity (24) is provided in the base (11) at a position at the same height as the locking groove (2), a locking rod (22) is connected to the sliding cavity (24) via a second spring (25), and the bottom of the release rod (19) is clamped in the notch groove (23) above the locking rod (22).

6. The easily adjustable lithium-ion battery pack welding tool according to claim 1, characterized in that: The bottom end of the first spring (18) is fixedly connected to the top of the base (11).

7. The easily adjustable lithium-ion battery pack welding tool according to claim 1, characterized in that: The end of the pressing plate (32) is movably clamped in the anti-deflection groove (33) on the inner side of the limiting bracket (3).

8. The easily adjustable lithium-ion battery pack welding tool according to claim 1, characterized in that: A guide rod (36) is arranged parallel to the upper side of the bidirectional screw rod (35), and the guide rod (36) is movably inserted into a circular hole on the side of the moving block (34).

9. The easily adjustable lithium-ion battery pack welding tool according to claim 2, characterized in that: A restraining rod (41) is provided at the bottom of the workbench (4), and the restraining rod (41) is rotatably clamped in an annular groove (42) on the support plate (38).