CN216462453U - Negative electrode shell welding device - Google Patents

Abstract

The utility model relates to a cathode shell welding device which comprises a feeding mechanism, a positioning mechanism and a welding mechanism, wherein the feeding mechanism is butted with the positioning mechanism, and the welding mechanism is arranged opposite to the positioning mechanism; the positioning mechanism comprises a positioning seat, a feeding assembly and a clamping assembly, wherein the positioning seat is provided with a trough, the feeding assembly is adjacent to the trough, and the clamping assembly is arranged at the lower end of the trough. The utility model has reasonable structure and can improve the welding efficiency and precision.

Description

Negative electrode shell welding device

Technical Field

The utility model relates to the field of battery manufacturing equipment, in particular to a negative electrode shell welding device.

Background

In the production process of the battery, the tab and the cathode shell of the battery cell need to be subjected to laser welding and then subjected to subsequent processing. In order to ensure the quality of products, the welding precision requirement is high, so that the operation difficulty of the welding process is high, the traditional negative electrode shell welding equipment generally adopts a semi-automatic processing mode, partial processes such as feeding, positioning and the like need manual operation, the automation degree is low, the manual operation increases the labor cost, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a negative electrode shell welding device which is reasonable in structure and capable of improving welding efficiency and welding precision.

A negative electrode shell welding device comprises a feeding mechanism, a positioning mechanism and a welding mechanism, wherein the feeding mechanism is in butt joint with the positioning mechanism, and the welding mechanism is arranged opposite to the positioning mechanism; the positioning mechanism comprises a positioning seat, a feeding assembly and a clamping assembly, wherein the positioning seat is provided with a trough, the feeding assembly and the trough are arranged adjacently, and the clamping assembly is arranged at the lower end of the trough.

Further, feed mechanism includes vibration dish and pay-off passageway, the vibration dish with the one end intercommunication of pay-off passageway, the other end of pay-off passageway with the positioning seat intercommunication.

Further, the feeding channel is obliquely arranged.

Furthermore, the feeding assembly comprises a feeding driving piece, a connecting rod and a feeding block, the feeding block is rotatably arranged on one side of the trough, part of the feeding block extends into the trough, the output end of the feeding driving piece is connected with one end of the connecting rod, and the other end of the connecting rod is rotatably connected with the feeding block.

Furthermore, a feeding part matched with the profile of the negative electrode shell is arranged on one side, close to the trough, of the feeding block.

Furthermore, the clamping assembly comprises a first clamping driving piece, a first clamping block, a second clamping driving piece and a second clamping block, the first clamping driving piece and the second clamping driving piece are respectively connected with the first clamping block and the second clamping block, and the first clamping block and the second clamping block can oppositely clamp to position the negative electrode shell.

Further, the clamping device further comprises a buffering assembly, and the buffering assembly is used for buffering the impact force of the first clamping block.

Furthermore, one side of the clamping assembly, which faces the welding mechanism, is provided with a welding positioning block, and the welding positioning block is provided with a welding positioning hole.

Furthermore, the positioning seat is provided with two material grooves which are parallel to each other, the feeding assemblies are symmetrically arranged on two sides of the positioning seat, and the clamping assemblies are symmetrically arranged at the lower ends of the two material grooves.

Further, the welding mechanism is a laser welder.

Compared with the prior art, the utility model has the beneficial effects that: the automatic welding machine is provided with the feeding mechanism, the positioning mechanism and the welding mechanism, so that the automation of the whole process of feeding, positioning and welding of the cathode shell can be realized, and the welding efficiency is effectively improved. The positioning mechanism is matched with the clamping assembly through the feeding assembly, automatic clamping and positioning of the cathode shell are achieved, positioning accuracy is high, welding accuracy is effectively improved, and product quality is further improved.

Drawings

Fig. 1 is a schematic structural view of a negative electrode can welding apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a positioning mechanism of the negative electrode can welding apparatus according to the embodiment of the present invention.

Fig. 3 is a side view of a positioning mechanism of the negative-electrode can welding apparatus according to the embodiment of the present invention.

Fig. 4 is a front view of a positioning mechanism of the negative case welding apparatus according to the embodiment of the present invention.

The reference numbers illustrate:

the feeding mechanism 1, the vibration disc 11, the feeding channel 12, the positioning mechanism 2, the positioning seat 21, the feeding assembly 22, the feeding driving member 221, the connecting rod 222, the feeding block 223, the clamping assembly 23, the first clamping driving member 231, the first clamping block 232, the second clamping driving member 233, the second clamping block 234, the welding positioning block 235, the welding positioning hole 236, the buffering assembly 24 and the welding mechanism 3.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1 to 3, the negative casing welding apparatus of the present invention mainly includes a feeding mechanism 1, a positioning mechanism 2, and a welding mechanism 3. The feeding mechanism 1 is used for feeding the negative electrode shell, the positioning mechanism 2 is used for positioning the negative electrode shell so as to carry out welding, and the welding mechanism 3 is used for welding the negative electrode shell and a pole lug of the battery core. Wherein, the feeding mechanism 1 is butted with the positioning mechanism 2, and the welding mechanism 3 is arranged opposite to the positioning mechanism 2.

Specifically, feed mechanism 1 includes vibration dish 11 and pay-off passageway 12, pay-off passageway 12 erects in positioning mechanism 2's top, the one end of pay-off passageway 12 and the discharge end intercommunication of vibration dish 11, the other end and positioning mechanism 2's feed end intercommunication, vibration dish 11 adopt present can, the slope of feed channel sets up, its lower one end is towards positioning mechanism 2, vibration dish 11 is through vibrations with the negative pole shell material loading one by one to pay-off passageway 12, the negative pole shell gets into positioning mechanism 2 along pay-off passageway 12 one by one.

The positioning mechanism 2 comprises a positioning seat 21, a feeding assembly 22 and a clamping assembly 23, wherein a material groove is arranged in the positioning seat 21, the material groove extends along the vertical direction, and the cathode shell can move from the feeding channel 12 and fall into the material groove from top to bottom. The feeding assembly 22 is adjacent to the trough, the clamping assembly 23 is arranged at the lower end of the trough, the feeding assembly 22 is used for transferring the cathode shells to the clamping assembly 23 one by one, and the clamping assembly 23 is used for clamping and positioning the cathode shells. It should be understood that, in order to improve the welding efficiency, the negative casing welding device of the present embodiment adopts a symmetrical structure, the positioning seat 21 is provided with two troughs, the two troughs are located on two sides of the positioning seat 21 and are parallel to each other, the feeding assembly 22 is symmetrically located on two sides of the positioning seat 21, the clamping assembly 23 is symmetrically located at the lower ends of the two troughs, and two electric cores can be welded simultaneously by adopting a symmetrical structure, so as to improve the welding efficiency. In other possible embodiments, a single trough, feed assembly 22, and clamp assembly 23 may be provided, and the disclosure is not limited thereto.

The feeding assembly 22 includes a feeding driving member 221, a connecting rod 222, and a feeding block 223, where the feeding driving member 221 is implemented by an existing linear driving device, in this embodiment, the feeding driving member 221 is implemented by an air cylinder, an output end of the air cylinder is connected with one end of the connecting rod 222, the other end of the connecting rod 222 is rotationally connected with the feeding block 223, a circular arc-shaped feeding portion matched with the profile of the negative electrode shell is formed on one side of the feeding block 223 close to the trough, and an outer peripheral portion of the feeding block 223 extends into the trough to prevent the negative electrode shell in the trough from directly falling. Illustratively, the feeding driving member 221 can drive the connecting rod 222 to move downwards, the connecting rod 222 drives the feeding block 223 to rotate anticlockwise, so that the negative electrode shell falls into the feeding portion, then the feeding driving member 221 reversely drives the connecting rod 222 to move upwards, and the feeding block 223 is driven by the connecting rod 222 to rotate clockwise, so that the negative electrode shell in the feeding portion is pushed to fall to the lower end of the trough.

The clamping assembly 23 comprises a first clamping driving member 231, a first clamping block 232, a second clamping driving member 233 and a second clamping block 234, the output end of the first clamping driving member 231 is connected with the first clamping block 232 through a connecting plate, the output end of the second clamping driving member 233 is connected with the second clamping block 234 through a connecting plate, the first clamping block 232 and the second clamping block 234 are arranged oppositely, and the first clamping driving member 231 and the second clamping driving member 233 can respectively drive the first clamping block 232 and the second clamping block 234 to move oppositely, so that a negative electrode shell falling from the lower end of the trough is clamped. The clamping assembly 23 can accurately position the negative casing, thereby improving the welding accuracy.

In the embodiment, a buffering assembly 24 is further included, and the buffering assembly 24 is used for buffering the impact of the first clamping block 232, and it can be understood that the buffering assembly 24 adopts an existing buffering device, which is provided at the end of the moving path of the first clamping block 232. The buffer assembly 24 can buffer the impact force when clamping the cathode casing, thereby avoiding the deformation of the cathode casing due to extrusion.

The welding mechanism 3 may be a conventional laser welder having a welding head facing the positioning mechanism 2. In the present embodiment, a welding positioning block 235 is disposed on a side of the clamping assembly 23 facing the welding mechanism 3, a welding positioning hole 236 is disposed on the welding positioning block 235, the position of the welding positioning hole 236 matches the position of the negative casing to be welded, and during welding, laser of the welding head can pass through the welding positioning hole 236, so as to weld the negative casing.

In the description of the present invention, it is to be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate orientations or positional relationships, are used based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and for the simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

While the utility model has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims (10)

1. The negative electrode shell welding device is characterized by comprising a feeding mechanism (1), a positioning mechanism (2) and a welding mechanism (3), wherein the feeding mechanism (1) is in butt joint with the positioning mechanism (2), and the welding mechanism (3) is arranged opposite to the positioning mechanism (2); positioning mechanism (2) include positioning seat (21), pay-off subassembly (22) and centre gripping subassembly (23), positioning seat (21) are equipped with the silo, pay-off subassembly (22) with the silo is adjacent to be set up, centre gripping subassembly (23) are located the lower extreme of silo.

2. The negative casing welding device according to claim 1, wherein the feeding mechanism (1) comprises a vibrating disc (11) and a feeding channel (12), the vibrating disc (11) is communicated with one end of the feeding channel (12), and the other end of the feeding channel (12) is communicated with the positioning seat (21).

3. The negative casing welding device according to claim 2, characterized in that the feeding channel (12) is arranged obliquely.

4. The negative casing welding device according to claim 1, wherein the feeding assembly (22) comprises a feeding driving member (221), a connecting rod (222) and a feeding block (223), the feeding block (223) is rotatably arranged on one side of the trough, part of the feeding block (223) extends into the trough, the output end of the feeding driving member (221) is connected with one end of the connecting rod (222), and the other end of the connecting rod (222) is rotatably connected with the feeding block (223).

5. The negative casing welding device according to claim 4, characterized in that a feeding part matched with the profile of the negative casing is arranged on one side of the feeding block (223) close to the trough.

6. The negative casing welding device according to claim 1, wherein the clamping assembly (23) comprises a first clamping driving member (231), a first clamping block (232), a second clamping driving member (233), and a second clamping block (234), the first clamping driving member (231) and the second clamping driving member (233) are respectively connected with the first clamping block (232) and the second clamping block (234), and the first clamping block (232) and the second clamping block (234) can be clamped in pair to position the negative casing.

7. The negative casing welding device of claim 6, further comprising a buffer assembly (24), wherein the buffer assembly (24) is used for buffering the impact force of the first clamping block (232).

8. The negative casing welding device according to claim 1, wherein a welding positioning block (235) is arranged on one side of the clamping assembly (23) facing the welding mechanism (3), and a welding positioning hole (236) is arranged on the welding positioning block (235).

9. The negative casing welding device according to claim 1, wherein the positioning seat (21) is provided with two troughs which are parallel to each other, the feeding assemblies (22) are symmetrically arranged at two sides of the positioning seat (21), and the clamping assemblies (23) are symmetrically arranged at the lower ends of the two troughs.

10. The negative can welding apparatus of claim 1, wherein the welding mechanism (3) is a laser welder.

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