Welding tool for metal frame body of lithium battery pack

Abstract

The utility model provides a welding tool for a metal frame body of a lithium battery pack, which belongs to the technical field of battery pack processing equipment and aims to solve the problem of low positioning and welding efficiency between the lithium battery frame body and a cross beam of the lithium battery frame body at present. A positioning assembly is installed on the support, a lifting driving mechanism capable of driving the positioning assembly to move up and down is installed on the positioning assembly, the positioning assembly comprises a transverse connecting piece and a plurality of clamping units installed on the transverse connecting piece, and each clamping unit comprises two side clamping plates and a pressing block arranged between the two side clamping plates; the multiple side clamping mechanisms can clamp an outer frame of a lithium battery frame body, and the two side clamping plates are connected with a cross beam in a clamped mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery pack processing equipment, and more specifically, particularly relates to a welding tooling for the metal frame of a lithium battery pack. Background Art

[0002] A lithium battery pack usually consists of battery cells, a battery management system, connecting components, a housing, a heat dissipation system, insulating materials, etc. Among them, the housing of the battery not only plays a connecting role for the battery cells, but also plays a great role in the anti-collision safety of the battery. Currently, the battery housing is usually made by welding profiles.

[0003] Currently, for the welding of the battery pack housing with a frame structure as Figure 1 shown, a relatively conventional method is to manually place a corresponding number of cross beams 12 inside the outer frame 11 of the lithium battery frame 1 and then weld them in sequence, or use a fixture table to clamp the outer frame 11, then fix and position the cross beam 12 with a quick clamp, and then use an automatic welding device to weld the outer frame 11 and the cross beam 12 among them.

[0004] Based on the welding scheme of the equipment in the above-mentioned prior art, it is found that the positioning efficiency of the cross beam 12 in the current prior art is low, thus affecting the manufacturing speed of the lithium battery frame.

[0005] Therefore, in view of the existing structure and deficiencies, research and improvement are carried out, and a welding tooling for the metal frame of a lithium battery pack is provided, with the expectation of achieving a more practical value purpose. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a welding tooling for the metal frame of a lithium battery pack to solve the problem of low positioning and welding efficiency between the current lithium battery frame and its cross beam.

[0007] The purpose and effect of a welding tooling for the metal frame of a lithium battery pack of the utility model are achieved by the following specific technical means:

[0008] A welding tooling for the metal frame of a lithium battery pack includes:

[0009] A bracket and a plurality of side clamping mechanisms arranged on the bracket. A gantry is arranged on the upper part of the bracket. A positioning component is installed on the bracket, and a lifting driving mechanism capable of driving it to move up and down is installed on the positioning component. The positioning component includes a transverse connecting piece and a plurality of clamping units installed on the transverse connecting piece. The clamping unit includes two side clamping plates and a pressing block arranged between the two side clamping plates;

[0010] The plurality of side clamping mechanisms can clamp the outer frame of the lithium battery frame, and the two side clamping plates clamp the cross beam.

[0011] Furthermore, a jacking support plate is provided on the bracket. A third cylinder is installed at the bottom of the jacking support plate. The third cylinder is provided with a third cylinder barrel and a third piston rod. The third cylinder barrel is installed on the bracket, and the third piston rod is fixedly connected to the jacking support plate.

[0012] Furthermore, at least one set of guiding members is provided. The guiding members include a guiding rod fixedly connected to the jacking support plate at the upper end and a guiding sleeve slidably connected to the guiding rod. The guiding sleeve is fixedly connected to the bracket.

[0013] Furthermore, the side clamping mechanism includes a second cylinder, a clamping plate, and a buffer block. The second cylinder is provided with a second cylinder barrel and a second piston rod. The second piston rod is fixedly connected to the clamping plate. The clamping plate is fixedly connected to the buffer block. The second cylinder barrel is fixedly connected to the bracket.

[0014] Furthermore, the buffer block is made of rubber.

[0015] Furthermore, the buffer block is made of silicon nitride rubber or borosilicate rubber.

[0016] Furthermore, the lifting drive mechanism is a first cylinder. The first cylinder is provided with a first cylinder barrel and a transverse connecting member. The first cylinder barrel is fixedly connected to the gantry, and the first piston rod is fixedly connected to the transverse connecting member.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] By providing a plurality of side clamping mechanisms, the outer frame of the lithium battery frame is clamped and positioned. Then, the positioning assembly is lowered until the pressing block and the two side clamping plates just limit the placement of the cross beam, thereby positioning the cross beam. Then, the first cylinder drives the positioning assembly to continue pressing down on the cross beam, thereby tightly fixing the cross beam. Then, the gap between the cross beam and the outer frame is welded, thus realizing the rapid positioning welding of the cross beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the lithium battery frame in the present utility model.

[0020] Figure 2 is a three-dimensional structural schematic diagram of a welding tool for the metal frame of a lithium battery pack in the present utility model.

[0021] Figure 3 is a side view structural schematic diagram of a welding tool for the metal frame of a lithium battery pack in the present utility model.

[0022] Figure 4 is a top view structural schematic diagram of a welding tool for the metal frame of a lithium battery pack in the present utility model.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the combination of the gantry, positioning component and first cylinder of the present utility model.

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the combination of the bracket, second cylinder, lifting support plate, guiding component and third cylinder of the present utility model.

[0025] In the figure, the corresponding relationship between the component names and the attached drawing numbers is as follows: lithium battery frame 1, outer frame 11, cross beam 12, bracket 2, second cylinder 3, second cylinder barrel 31, second piston rod 32, clamping plate 33, buffer block 34, gantry 4, positioning component 5, transverse connecting piece 51, clamping unit 52, side clamping plate 521, pressing block 522, first cylinder 6, first cylinder barrel 61, first piston rod 62, lifting support plate 7, guiding component 8, guiding rod 81, guiding sleeve 82, third cylinder 9, third cylinder barrel 91, third piston rod 92. Specific embodiments

[0026] The following further describes in detail the embodiments of the present utility model in conjunction with the attached drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0027] In the description of the present utility model, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] Example:

[0030] As shown in the attached Figure 1 to the attached Figure 6 shown:

[0031] The utility model provides a welding tooling for the metal frame of a lithium battery pack, comprising:

[0032] a bracket 2 and a plurality of side clamping mechanisms arranged on the bracket 2. A gantry 4 is arranged on the upper part of the bracket 2, a positioning component 5 is installed on the bracket 2, and a lifting driving mechanism capable of driving the positioning component 5 to move up and down is installed on the positioning component 5. The positioning component 5 includes a transverse connecting piece 51 and a plurality of clamping units 52 installed on the transverse connecting piece 51. The clamping unit 52 includes two side clamping plates 521 and a pressing block 522 arranged between the two side clamping plates 521;

[0033] The plurality of side clamping mechanisms can clamp the outer frame 11 of the lithium battery frame body 1, and the two side clamping plates 521 clamp the cross beam 12.

[0034] By arranging a plurality of side clamping mechanisms, the utility model realizes the clamping and positioning of the outer frame 11 of the lithium battery frame body 1. Then, the positioning component 5 is lowered until the pressing block 522 and the two side clamping plates 521 just play a role in limiting the placement of the cross beam 12, so as to position the cross beam 12. Then, the positioning component 5 is driven by a first cylinder 6 to continue pressing down on the cross beam 12, so as to tightly fix the cross beam 12. Then, the gap between the cross beam 12 and the outer frame 11 is welded, thus realizing the rapid positioning welding of the cross beam 12.

[0035] A jacking plate 7 is further arranged on the bracket 2. A third cylinder 9 is installed at the bottom of the jacking plate 7. The third cylinder 9 is provided with a third cylinder barrel 91 and a third piston rod 92. The third cylinder barrel 91 is installed on the bracket 2, and the third piston rod 92 is fixedly connected with the jacking plate 7.

[0036] The jacking plate 7 is used to jack up the welded lithium battery frame body 1, so as to facilitate the removal of the welded lithium battery frame body 1.

[0037] At least one set of guiding components 8 is further arranged. The guiding component 8 includes a guiding rod 81 with the upper end fixedly connected with the jacking plate 7 and a guiding sleeve 82 slidably connected with the guiding rod 81. The guiding sleeve 82 is fixedly connected with the bracket 2.

[0038] The arrangement of the guiding component 8 among them plays a guiding role for the jacking plate 7, making the movement of the jacking plate 7 more stable.

[0039] The side clamping mechanism includes a second cylinder 3, a clamping plate 33, and a buffer block 34. The second cylinder 3 is provided with a second cylinder barrel 31 and a second piston rod 32. The second piston rod 32 is fixedly connected with the clamping plate 33, the clamping plate 33 is fixedly connected with the buffer block 34, and the second cylinder barrel 31 is fixedly connected with the bracket 2. The buffer block 34 is made of rubber.

[0040] The setting of the buffer block 34 among them plays a buffering role.

[0041] The material of the buffer block 34 is silicon nitride rubber or borosilicate rubber. Silicon nitride rubber or borosilicate rubber has the characteristic of high temperature resistance and can withstand the high temperature on the outer surface of the lithium battery housing 1 during welding.

[0042] The lifting drive mechanism is the first cylinder 6. The first cylinder 6 is provided with a first cylinder barrel 61 and a transverse connecting member 51. The first cylinder barrel 61 is fixedly connected to the gantry 4, and the first piston rod 62 is fixedly connected to the transverse connecting member 51.

[0043] The specific usage mode and function of this embodiment are as follows:

[0044] When the present utility model is in use, first, the lithium battery housing 1 is clamped and fixed by a plurality of side clamping mechanisms. Then, the first cylinder 6 drives the positioning assembly 5 and its clamping unit 52 to move down to a certain height (the height is based on being able to insert the cross beam 12 into the clamping groove formed at the lower part of the clamping unit 52). When all the cross beams 12 are placed in place, continue to drive the clamping unit 52 to move down to clamp and fix the cross beam 12. Then, directly weld the outer frame 11 and the cross beam 12 at the connection position. After the welding is completed, the first cylinder 6 drives the positioning assembly 5 to move up, and a plurality of second cylinders 3 drive their corresponding buffer blocks 34 to move outwards, so that the lithium battery housing 1 can be driven by the third cylinder 9 to lift the lifting plate 7 upwards, and thus it is convenient to drive the welded lithium battery housing 1.

[0045] The embodiments of the present utility model are given for the purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and to enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A metal frame welding tool for a lithium battery pack, characterized in that: include: A support (2) and a plurality of side clamping mechanisms arranged on the support (2); a gantry (4) is arranged on the upper part of the support (2); a positioning assembly (5) is installed on the support (2); a lifting drive mechanism capable of driving the positioning assembly (5) to move up and down is installed on the positioning assembly (5); the positioning assembly (5) comprises a transverse connecting member (51), a plurality of clamping units (52) installed on the transverse connecting member (51); the clamping unit (52) comprises two side clamping plates (521) and a pressing block (522) arranged between the two side clamping plates (521); The plurality of side clamping mechanisms are capable of clamping the outer frame (11) of the lithium battery frame (1), and the two side clamping plates (521) clamp the crossbeam (12).

2. The metal frame welding tool for a lithium battery pack according to claim 1, characterized in that: The support (2) is also provided with a lifting plate (7), the bottom of which is provided with a third cylinder (9), the third cylinder (9) being provided with a third cylinder barrel (91) and a third piston rod (92), the third cylinder barrel (91) being installed on the support (2), and the third piston rod (92) being fixedly connected to the lifting plate (7).

3. The metal frame welding tool for a lithium battery pack according to claim 2, characterized in that: At least one set of guide components (8) is also provided, the guide components (8) comprising a guide rod (81) whose upper end is fixedly connected to the lifting support plate (7), and a guide sleeve (82) slidably connected to the guide rod (81), and the guide sleeve (82) is fixedly connected to the bracket (2).

4. A metal frame welding tool for a lithium battery pack according to any one of claims 1 to 3, characterized in that: The side clamping mechanism comprises a second cylinder (3), a clamping plate (33), and a buffer block (34); the second cylinder (3) is provided with a second cylinder barrel (31) and a second piston rod (32); the second piston rod (32) is fixedly connected to the clamping plate (33); the clamping plate (33) is fixedly connected to the buffer block (34); and the second cylinder barrel (31) is fixedly connected to the bracket (2).

5. The metal frame welding tool for a lithium battery pack as claimed in claim 4, characterized in that: The buffer block (34) is made of rubber.

6. A metal frame welding tool for a lithium battery pack as claimed in claim 5, characterized in that: The material of the buffer block (34) is silicon nitrogen rubber or borosilicate rubber.

7. The metal frame welding tool for a lithium battery pack according to claim 1, characterized in that: The lifting drive mechanism is a first cylinder (6), the first cylinder (6) is provided with a first cylinder barrel (61) and a transverse connecting member (51), the first cylinder barrel (61) is fixedly connected to the gantry (4), and the transverse connecting member (51) is fixedly connected to a first piston rod (62).

Images