CN219151988U

CN219151988U - Battery cell welding fixture

Info

Publication number: CN219151988U
Application number: CN202223521672.6U
Authority: CN
Inventors: 李腾飞
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-09
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to the technical field of battery manufacturing equipment, and particularly discloses a battery cell welding fixture, which comprises: the driving mechanism is arranged on one side of the welding head far away from the seam welder along the Y-axis direction; the clamping mechanism is arranged on the upper side face of the driving mechanism, the clamping mechanism is slidably connected with the driving mechanism, the clamping mechanism is used for clamping a piece to be welded and adjusting the height of the piece to be welded along the Z-axis direction, and the driving mechanism is used for driving the clamping mechanism to slide along the Y-axis direction. The clamping mechanism is driven to move through the driving mechanism, the linear speed of the driving mechanism can be perfectly matched with the linear speed of the rolling welding head, the welding head is used for welding the battery cells to be welded clamped by the clamping mechanism, the welding qualification rate is improved, meanwhile, the height of the clamp is adjusted by the adjusting part, so that the battery cells with different sizes can be compatible for welding, the compatibility of batteries with full-size specifications is realized, and the waste of the cost of the clamp is avoided.

Description

Battery cell welding fixture

Technical Field

The utility model relates to the technical field of battery manufacturing equipment, in particular to a battery cell welding fixture.

Background

The current lithium battery industry is exploded, so that the demand for lithium batteries is increased. Currently, the productivity of lithium batteries is seriously insufficient, and how to improve the productivity of the batteries on the premise of not increasing the cost is the direction of efforts of each battery manufacturer, so that higher requirements are put forward on high-speed welding of battery cells.

However, the current welding technology can only achieve 12PPM for various reasons, meanwhile, because the requirements of different sizes of the battery cells on the clamps are different, the battery cells with different sizes can only be clamped and produced by the clamps with different height specifications, so that cost is wasted, when the battery cells are pushed by an operator during welding, the speed of the battery cells is not matched with that of the welding head, the welding qualification rate is easy to be influenced, and the clamping of the battery cells by the clamps requires the operator to conduct down-line operation, so that the welding work efficiency is extremely influenced.

In view of the above, it is highly desirable to provide a welding fixture compatible with full-size battery cells, which is used for solving the problems that the existing welding fixture cannot be compatible with full-size battery cells, so that cost is wasted, welding efficiency is affected due to the fact that the fixture needs to be operated offline by operators, and welding qualification rate is poor due to mismatching of the battery cells and welding heads.

Disclosure of Invention

In view of the above, the utility model provides a battery cell welding fixture, which aims to solve the problems that the existing welding fixture cannot be compatible with a full-size battery cell, so that cost is wasted, the fixture needs to be operated offline by an operator to influence welding efficiency, and the welding qualification rate is poor due to mismatching of the speeds of the battery cell and a welding head.

In one aspect, the present utility model provides a die-bonding jig, comprising:

the seam welder is arranged along the X-axis direction, and a welding head is arranged at one end of the seam welder;

the driving mechanism is arranged on one side of the welding head, which is far away from the seam welder, along the Y-axis direction;

the clamping mechanism is arranged on the upper side face of the driving mechanism and is in sliding connection with the driving mechanism, the clamping mechanism is used for clamping a piece to be welded and adjusting the height of the piece to be welded along the Z-axis direction, and the driving mechanism is used for driving the clamping mechanism to slide along the Y-axis direction.

Further, the clamping mechanism includes:

the support part is arranged on the upper side surface of the driving mechanism along the Y-axis direction and is connected with the driving end of the driving mechanism;

the clamping part is arranged along the Y-axis direction, the lower side surface of the clamping part is slidably connected with the upper side surface of the supporting part, and the clamping part is used for clamping the piece to be welded;

the adjusting part is rotatably arranged on the supporting part in a penetrating manner along the Z-axis direction, the upper end of the adjusting part is contacted with the lower side surface of the clamping part, and the adjusting part is used for adjusting the height of the clamping part along the Z-axis direction.

Further, the clamping part includes:

an upper clamping plate;

the lower clamping plate is arranged right below the upper clamping plate, and the upper clamping plate and the lower clamping plate are used for clamping the piece to be welded;

the magnetic attraction modules are arranged at four corners of the lower clamping plate and are used for enabling the upper clamping plate and the lower clamping plate to be mutually magnetically attracted together.

Further, a handle is arranged on the upper side face of the upper clamping plate.

Further, the support part includes:

the lower side surface of the bracket is connected with the driving end of the driving mechanism, and the middle part of the upper side surface of the bracket is provided with a light hole;

the upper end of the guide shaft is connected with the lower side face of the lower clamping plate, the lower end of the guide shaft penetrates through the unthreaded hole, and the guide shaft is used for limiting the lower clamping plate to move along the Z-axis direction.

Further, the supporting part further includes:

the guide seat is arranged on the upper side surface of the support and is coaxially arranged with the unthreaded hole, and the lower end of the guide shaft simultaneously penetrates through the guide seat and the unthreaded hole.

Further, the adjusting part includes:

the adjusting hole is formed in the middle of the upper side surface of the bracket;

the adjusting seat is arranged on the upper side surface of the bracket and is coaxially arranged with the adjusting hole;

the upper end of the adjusting rod is contacted with the lower side surface of the lower clamping plate, and the lower end of the adjusting rod is simultaneously penetrated in the adjusting hole and the adjusting seat and rotates with the adjusting hole and the adjusting seat.

Further, a first connecting block is arranged on the lower side face of the lower clamping plate, a second connecting block is arranged on the upper side face of the support, a spring is arranged between the lower clamping plate and the support, the upper end of the spring is connected with the first connecting block, and the lower end of the spring is connected with the second connecting block.

Further, the driving mechanism includes:

the base is arranged on one side of the welding head far away from the seam welder;

the lower side of the driving part is connected with the upper side of the base, the upper side of the driving part is provided with a driving plate, and the bracket is arranged on the upper side of the driving plate.

Further, a support frame is arranged on the side part, away from one side of the welding head, of the base, and the support frame is used for placing a drag chain.

Compared with the prior art, the utility model has the beneficial effects that the clamping mechanism is driven to move by the driving mechanism, the linear speed of the driving mechanism can be perfectly matched with the linear speed of the rolling welding head, so that the rolling welding head can weld the to-be-welded battery cells clamped by the clamping mechanism, the welding qualification rate is further improved, meanwhile, the traditional rapid clamp compression is changed into the compression positioning of the battery cells by the upper clamping plate and the lower clamping plate which are attracted by the magnetic force of the magnet, the operation is simple and convenient, and the welding efficiency is improved; the height of the clamp is adjusted by the adjusting part, so that the battery cells with different sizes can be compatible for welding, the compatibility of batteries with full-size specifications is realized, and the waste of the cost of the clamp is avoided.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 is a schematic structural diagram of a die bonding fixture according to an embodiment of the present utility model;

fig. 2 is a front view of a die bonding fixture according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a clamping mechanism according to an embodiment of the utility model.

In the figure, 110, a driving section; 120. a drag chain; 130. a driving plate; 140. a base; 210. a magnetic attraction module; 220. a lower clamping plate; 221. a first connection block; 230. an upper clamping plate; 231. a handle; 300. an adjusting section; 310. an adjusting seat; 320. an adjusting rod; 410. a bracket; 411. a second connection block; 421. a guide seat; 422. a guide shaft; 430. a spring; 500. a welding machine; 600. and a support plate.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

As shown in fig. 1 and 2, in a preferred embodiment of the present embodiment, there is provided a die bonding jig including: the seam welder comprises a seam welder body, a driving mechanism and a clamping mechanism. The seam welder is arranged along the X-axis direction, and one end of the seam welder is provided with a welding head. The driving mechanism is arranged on one side of the welding head away from the seam welder along the Y-axis direction. The clamping mechanism is arranged on the upper side face of the driving mechanism, the clamping mechanism is slidably connected with the driving mechanism, the clamping mechanism is used for clamping a piece to be welded and adjusting the height of the piece to be welded along the Z-axis direction, and the driving mechanism is used for driving the clamping mechanism to slide along the Y-axis direction.

It can be seen that in this embodiment, the electric core welding fixture comprises seam welder, actuating mechanism and fixture, will wait to weld the piece centre gripping through fixture, drive fixture by actuating mechanism, make the holding mechanism centre gripping wait to weld the piece and the line speed of the roll welding head of welder unanimous move at actuating mechanism upside, avoided the electric core to appear pulling in welding process, further improved the welding qualification rate of electric core.

Preferably, the parts to be welded are battery cores and pole pieces to be welded.

Preferably, the X-axis direction is the setting direction of the welding machine in this embodiment, the Y-axis is the setting direction of the driving mechanism in this embodiment, and the Z-axis is the vertical direction in this embodiment.

It can be understood that the electric core to be welded is clamped through the clamping mechanism, the clamping mechanism is connected with the driving mechanism, the height of the electric core to be welded is driven through adjusting the height of the clamping mechanism, the welding position of the electric core to be welded corresponds to the welding head, the driving mechanism drives the clamping mechanism to move on the upper side surface of the driving mechanism, the driving linear speed of the driving mechanism is adjusted to be consistent with the rotating linear speed of the welding head, the moving linear speed of the electric core to be welded is further consistent with the rotating linear speed of the welding head, the phenomenon that the electric core is pulled in the welding process is avoided, and the welding qualification rate of the electric core is further improved.

Referring to fig. 3, the clamping mechanism in this embodiment includes: a support portion, a clamping portion, and an adjustment portion 300. The support part is arranged on the upper side surface of the driving mechanism along the Y-axis direction and is connected with the driving end of the driving mechanism. The clamping part is arranged along the Y-axis direction, the lower side face of the clamping part is slidably connected with the upper side face of the supporting part, and the clamping part is used for clamping a piece to be welded. The adjusting part 300 is rotatably arranged on the supporting part in a penetrating manner along the Z-axis direction, the upper end of the adjusting part 300 is contacted with the lower side surface of the clamping part, and the adjusting part 300 is used for adjusting the height of the clamping part along the Z-axis direction.

It can be understood that the clamping mechanism in this embodiment is composed of a supporting portion, a clamping portion and an adjusting portion 300, the supporting portion is connected with the driving end of the driving mechanism, the clamping portion is connected with the supporting portion, the driving end of the driving mechanism drives the clamping portion to move in the moving process, the clamping portion is enabled to further drive the to-be-welded battery cell clamped by the clamping portion to vertically move when contacting the adjusting portion 300 through the height of the adjusting portion 300, the to-be-welded battery cell welding position always corresponds to the welding head in the welding moving process, and the welding qualification rate of the battery cell is further enhanced.

Specifically, the clamping portion in this embodiment includes: an upper clamping plate 230, a lower clamping plate 220 and a magnetic attraction module 210. The lower clamping plate 220 is disposed right below the upper clamping plate 230, and the upper clamping plate 230 and the lower clamping plate 220 are used for clamping the piece to be welded. The magnetic attraction modules 210 are disposed at four corners of the lower clamping plate 220, and the magnetic attraction modules 210 are used to magnetically attract the upper clamping plate 230 and the lower clamping plate 220 to each other.

It can be seen that, in this embodiment, the clamping portion is composed of the upper clamping plate 230, the lower clamping plate 220 and the magnetic attraction modules 210, and the magnetic attraction modules 210 disposed at the corners of the lower clamping plate 220 generate magnetic force, so that suction force is generated between the upper clamping plate 230 and the lower clamping plate 220, and the to-be-welded battery cells placed on the lower clamping plate 220 are further pressed and clamped.

Preferably, the magnetic attraction module 210 is a magnetic force device such as an electromagnet.

It can be understood that the electromagnet at the corner of the lower clamping plate 220 is started to generate magnetic force to suck the upper clamping plate 230 to press and position the to-be-welded battery cell placed on the lower clamping plate 220, so that the problem that the battery cell with one size specification in the prior art can only be clamped by using one clamp is avoided, the compatible clamping of the battery with full size specification is further realized, and the problem of cost waste caused by using different clamps in the production of the battery with full size specification is avoided.

Specifically, a handle 231 is provided on the upper side of the upper clamping plate 230.

It can be appreciated that, through the handle 231 provided on the upper side of the upper clamping plate 230, when the battery cells to be welded are placed and the battery cells after welding are taken out, the upper clamping plate 230 and the lower clamping plate 220 are conveniently and rapidly separated by an operator, so that the welding efficiency is improved.

Specifically, the support portion in the present embodiment includes: bracket 410, guide shaft 422 and guide seat 421. The lower side of the bracket 410 is connected with the driving end of the driving mechanism, and the middle part of the upper side of the bracket 410 is provided with a light hole. The upper end of the guide shaft 422 is connected with the lower side surface of the lower clamping plate 220, the lower end of the guide shaft 422 is penetrated into the unthreaded hole, and the guide shaft 422 is used for limiting the movement of the lower clamping plate 220 along the Z-axis direction. The guide seat 421 is disposed on the upper side of the bracket 410 and coaxially disposed with the light hole, and the lower end of the guide shaft 422 passes through both the guide seat 421 and the light hole.

It can be understood that, in this embodiment, the supporting portion is composed of the bracket 410, the guide shaft 422 and the guide seat 421, one end of the guide shaft 422 is fixedly connected with the lower plate 220, and the other end of the guide shaft 422 passes through the optical hole in the middle of the bracket 410 and the guide seat 421, so that the lower plate 220 is limited to move vertically along the X-axis, the lower plate 220 is prevented from moving in other directions in the welding process, and the battery cell to be welded is further moved during the welding, so that the welding head damages the battery cell to be welded, and further the cost is increased and even the operator is injured.

Specifically, the adjusting section 300 in the present embodiment includes: an adjustment hole, an adjustment seat 310, and an adjustment lever 320. The adjustment hole is provided in the middle of the upper side of the bracket 410. The adjustment seat 310 is disposed on the upper side of the bracket 410 and is disposed coaxially with the adjustment hole. The adjusting lever 320 has an upper end contacting the lower side of the lower clamping plate 220 and a lower end penetrating the adjusting hole and the adjusting seat 310 and rotating with the adjusting hole and the adjusting seat 310.

It can be seen that the adjusting part 300 in this embodiment is composed of an adjusting hole, an adjusting seat 310 and an adjusting lever 320. The middle part on the upper side surface of the bracket 410 is provided with the adjusting seat 310, the upper side of the adjusting hole is provided with the adjusting seat 310, the adjusting rod 320 rotates to pass through the adjusting seat 310 and the adjusting hole, the vertical height of the adjusting rod 320 is adjusted, the vertical height of the lower clamping plate 220 contacted with the adjusting rod 320 is further changed, and the lower clamping plate 220 is further changed to drive the placed battery cell with the welding to change the vertical height

Preferably, the adjustment rod 320 is a threaded rod.

Preferably, the adjustment seat 310 is a threaded seat.

It can be appreciated that when the adjusting lever 320 rotates downward or upward in the adjusting seat 310 and the adjusting hole, the adjusting lever 320 is fixed to the adjusting seat 310 and the adjusting hole to support the lower clamping plate 220, thereby completing the height adjustment of the lower clamping plate 220.

Specifically, in this embodiment, the lower side of the lower clamping plate 220 is provided with a first connection block 221, the upper side of the bracket 410 is provided with a second connection block 411, a spring 430 is provided between the lower clamping plate 220 and the bracket 410, the upper end of the spring 430 is connected with the first connection block 221, and the lower end of the spring 430 is connected with the second connection block 411.

It can be appreciated that the bracket 410 is connected with the lower clamping plate 220 by the spring 430, the lower side surface of the lower clamping plate 220 is always clung to the upper side surface of the adjusting rod 320 by the force of the spring 430, so that the lower clamping plate 220 is prevented from moving vertically in the welding process, the battery cell on the lower clamping plate 220 is further caused to move in the welding process, the battery is damaged, and even the battery cell is caused to burn to hurt an operator.

Specifically, the driving mechanism in the present embodiment includes: a base 140 and a driving part 110. The base 140 is disposed on the side of the weld head remote from the seam welder. The lower side of the driving part 110 is connected with the upper side of the base 140, the upper side of the driving part 110 is provided with the driving plate 130, and the bracket 410 is provided on the upper side of the driving plate 130.

Specifically, a support frame is provided on a side of the base 140 away from the welding head, and the support frame is used for placing the drag chain 120.

It can be seen that the driving mechanism in this embodiment is composed of a base 140 and a driving portion 110, and the driving portion 110 is disposed on the base 140, and the driving plate 130 disposed on the upper side of the driving portion 110 is connected with the bracket 410, so that the driving portion 110 drives the driving plate 130 to move, and further drives the bracket 410 and the lower clamping plate 220 connected with the bracket 410 to horizontally move.

Preferably, the driving part 110 is a controllable moving platform such as a servo module or a sliding table module.

It can be understood that the driving part 110 formed by the controllable moving platform such as the servo module or the sliding table module is set, so that the moving linear speed of the driving part 110 is consistent with the linear speed of the welding head, and the phenomenon that the to-be-welded battery core clamped by the clamping part is pulled and displayed with the welding head in the moving process is avoided, so that the qualification rate of the to-be-welded battery core is improved.

It can be seen that the working process in the preferred embodiment of the above embodiment clamps the battery by the clamping portion, adjusts the height of the adjusting portion 300 to make the welding position of the battery correspond to the rolling head, and drives the driving plate 130 to move by the driving portion 110 so as to drive the clamping portion to move above the driving portion 110110, so that the welding position of the battery is welded.

Specifically, the beneficial effects of the electric core welding fixture in the preferred embodiment of the present embodiment are that the driving mechanism drives the clamping mechanism to move, the linear speed of the driving mechanism can be perfectly matched with the linear speed of the welding head, so that the welding head welds the electric core to be welded clamped by the clamping mechanism, the welding qualification rate is further improved, meanwhile, the traditional rapid clamp compression is changed into the compression positioning of the electric core by the upper clamping plate 230 and the lower clamping plate 220 which are attracted by the magnetic force of the magnet, the operation is simple and convenient, and the welding efficiency is improved; the height of the clamp is adjusted by the adjusting part 300, so that the battery cores with different sizes can be compatible for welding, the compatibility of batteries with full-size specifications is realized, and the waste of the cost of the clamp is avoided.

Those of ordinary skill in the art will appreciate that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A die-bonding jig, comprising:

characterized by further comprising:

2. The die bonding fixture of claim 1, wherein the clamping mechanism comprises:

3. The die bonding fixture of claim 2, wherein the clamping portion comprises:

an upper clamping plate;

4. The die bonding jig according to claim 3, wherein a handle is provided on an upper side of the upper clamping plate.

5. The die bonding fixture of claim 3, wherein the support portion comprises:

6. The die bonding fixture of claim 5, wherein the support further comprises:

7. The die bonding jig according to claim 5, wherein the adjusting portion comprises:

8. The die bonding fixture according to claim 5, wherein a first connection block is provided on a lower side of the lower clamping plate, a second connection block is provided on an upper side of the bracket, a spring is provided between the lower clamping plate and the bracket, an upper end of the spring is connected with the first connection block, and a lower end of the spring is connected with the second connection block.

9. The die bonding fixture of claim 5, wherein the drive mechanism comprises:

10. The die bonding fixture of claim 9, wherein a side of the base remote from the side of the bonding tool is provided with a support for a drag chain.