Welding device convenient for welding tab and top cover

Abstract

The utility model discloses a welding device convenient for welding a tab and a top cover, relates to the technical field of tab welding equipment, and solves the problems that the tab needs to be manually placed, pressed and shaped in the current battery welding process, the process is tedious, and the efficiency is not high. Comprising a machine body, a welding device and a protection assembly are connected to the machine body, the welding device comprises a welding head moving up and down, and the welding head moves downwards to achieve welding of a tab and a top cover; the protection assembly comprises a support moving up and down and a protection cover at the lower end of the support, the protection cover downwards covers the upper sides of the tabs, and the upper end of the support is arranged on the upward moving path of the welding head in a blocking mode. The tab can be conveniently welded to the top cover, the tab is shaped through the protective cover in the welding process, insufficient welding of the tab in the welding process is prevented, and the effects of improving the welding quality and reducing the manufacturing cost are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tab welding equipment, in particular to a welding device convenient for welding tabs and top covers. BACKGROUND

[0002] Sodium batteries and lithium batteries involve cell welding in the production and manufacturing process, generally including movable ultrasonic welding assemblies, tooling and other components, the ultrasonic welding assembly is used for welding battery tabs and connecting pieces, and the tooling is used for positioning cells, connecting pieces and the like;

[0003] At present, the battery welding process adopts an ultrasonic welding and adapter piece welding combined mode, the tabs are welded to the adapter pieces through ultrasonic welding first, and then the adapter pieces are welded to the cover plates, manual placement and pressing of the tabs are required during the welding process, the process is complicated, and the work efficiency is not high. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a welding device convenient for welding tabs and top covers, which facilitates welding of tabs to top covers, shapes the tabs through the protective cover during the welding process, prevents virtual welding of the tabs during the welding process, improves the welding quality, and reduces the manufacturing cost.

[0005] The above technical purpose of the utility model is realized through the following technical scheme:

[0006] A welding device convenient for welding tabs and top covers, comprising a machine body, a welding device and a protection assembly are connected to the machine body, the welding device comprises a welding head moving up and down, the welding head moves downward and realizes welding of the tabs and the top cover; the protection assembly comprises a bracket moving up and down and a protective cover at the lower end of the bracket, the protective cover is arranged on the upper side of the tabs downward, and the upper end of the bracket is arranged on the path of upward movement of the welding head.

[0007] Through the above technical scheme, the welding device welds the tabs to the top cover, shapes the tabs through the protective cover during the welding process, and after the welding is completed, the welding head moves upward and pushes the bracket upward, so that the protective cover is away from the tabs, facilitating discharging.

[0008] Further, a limiting block is arranged in the bracket, the limiting block is located directly above the welding head, and the limiting block is pushed upward when the welding head moves upward, driving the protective cover to be away from the tabs.

[0009] Through the above technical scheme, after the welding is completed, the protective cover is driven upward away from the tabs by the limiting block, facilitating debugging and installation of the protection assembly.

[0010] Further, the limiting block is detachably connected in the bracket.

[0011] By adopting the technical scheme, different sizes of the limiting blocks are conveniently connected, and the size or self-weight of the limiting block is conveniently adjusted according to the welding device and the welding workpiece.

[0012] Further, the limiting block is downwardly inserted on the upper side of the support.

[0013] By adopting the technical scheme, the limiting block is quickly disassembled and installed, and the maintenance efficiency is improved.

[0014] Further, the support is provided with a positioning pin, and the limiting block is provided with a plurality of positioning holes at different heights, and the positioning pin is inserted into a certain positioning hole.

[0015] By adopting the technical scheme, the height of the limiting block relative to the support is conveniently adjusted to adjust the position of the limiting block according to the size of the welding workpiece or the welding head.

[0016] Further, the protection assembly further comprises a mounting seat, and the support is connected to the mounting seat in an up-down sliding manner, and the mounting seat is further connected with an elastic driving assembly for driving the support to move downward.

[0017] By adopting the technical scheme, the support can be downwardly abutted on the tab to be shaped under the action of gravity and the elastic driving assembly.

[0018] Further, the elastic driving assembly comprises a plurality of compression springs, the upper end of the compression spring is connected to the mounting seat, and the lower end is connected to the support, and the support is driven to move downward to abut the protection cover on the tab.

[0019] By adopting the technical scheme, the support is driven to move downward to abut the protection cover on the tab by the compression spring.

[0020] Further, the welding device further comprises a horizontal driving assembly for driving the welding head to move horizontally, and the limiting block comprises a ball or a roller at the bottom.

[0021] By adopting the technical scheme, the limiting block is conveniently and stably abutted on the welding head while the welding head moves horizontally to weld.

[0022] In summary, the utility model has the following beneficial effects:

[0023] During the welding process, the tab is shaped by the protection cover, the welding device welds the tab to the top cover, and after the welding is completed, the welding head moves upward and pushes the support upward, so that the protection cover is away from the tab, facilitating the tab and the top cover to be discharged after welding; and the elastic driving assembly is further arranged, so that the support can be downwardly abutted on the tab to be shaped under the action of gravity and the elastic driving assembly, and the stability of welding is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is the overall structure schematic diagram of the welding device for conveniently welding the tab and the top cover of the utility model;

[0025] Figure 2 is the structure schematic diagram of the protection assembly part in the welding device for conveniently welding the tab and the top cover of the utility model.

[0026] In the drawing, 1, machine body;2, welding device;21, welding head;3, protection assembly;31, support;311, positioning pin;32, protection cover;33, mounting seat;331, compression spring;4, limiting block;41, positioning hole;42, roller. Specific embodiments

[0027] The specific embodiments of the utility model are further described below in combination with the drawings, and the embodiments do not constitute the limitation of the utility model. Based on the embodiments in the application, all other embodiments obtained by the ordinary skilled person in the art without creative labor belong to the protection scope of the application.

[0028] A kind of welding device for conveniently welding tab and top cover, as shown in Figure 1 Including machine body 1, machine body 1 is connected with welding device 2 and protection assembly 3, welding device 2 includes welding head 21 and the vertical drive assembly of driving welding head 21 up and down movement, welding head 21 moves downward and realizes the welding work of tab and top cover;Welding head 21 can be ultrasonic welding or laser welding, realizes the welding of tab and top cover, welding head 21 adopts laser welding in the embodiment, directly welds tab to top cover, protection assembly 3 is shaped to tab in welding process, prevents tab from being virtual welding in welding process;In some other embodiments, it can also be monitored by welding residue to overcurrent, reduce laser power requirement, realize low-power welding, and the welding device can also be used to realize the welding of tab and adapter piece or other structures;

[0029] Welding device 2 can also include horizontal drive assembly for driving welding head 21 to move horizontally, vertical drive assembly and horizontal drive assembly can be realized by linear module structure, it can also not be provided with horizontal drive assembly, instead of mobile workbench, and top cover and tab are positioned and placed on the workbench, protection assembly 3 is installed on the workbench, and the relative movement of workpiece and welding head 21 is realized by the movement of workbench.

[0030] As Figure 2As shown, the protection assembly 3 includes two side frames, a bracket 31 moving up and down between the two side frames, and a protection cover 32 at the lower end of the bracket 31, which is arranged on the upper side of the tab and blocks the upward movement of the welding head 21, so that the welding head 21 can move upward and push the bracket 31 upward, driving the protection cover 32 away from the tab, facilitating the tab and the top cover after the welding is finished.

[0031] As shown in the figure, Figure 2 In order to facilitate installation, a limiting block 4 is arranged in the bracket 31, which is located directly above the welding head 21 and is pushed upward by the welding head 21 when it moves upward, driving the protection cover 32 away from the tab;

[0032] In this embodiment, the limiting block 4 is detachably connected to the bracket 31, and the limiting block 4 can be inserted downward on the upper side of the bracket 31 to achieve connection; specifically, a horizontal positioning pin 311 is arranged in the bracket 31, and a plurality of positioning holes 41 at different heights are arranged on the limiting block 4, and after the limiting block 4 is inserted downward through the bracket 31, the positioning pin 311 is inserted into a certain positioning hole 41 to achieve positioning between the limiting block 4 and the bracket 31, and finally the limiting block 4 is quickly disassembled and installed, improving the maintenance efficiency;

[0033] The limiting block 4 can also improve its guiding effect when moving up and down in the bracket 31 through two-sided guide edges or guide rods and other structures, and the limiting block 4 can also be replaced by adjusting bolts and other structures to achieve short-distance adjustment; in this embodiment, since the welding head 21 also has horizontal displacement, the limiting block 4 also includes a bottom ball or roller 42 to achieve stable abutment with the welding head 21 and reduce friction, and in some other embodiments, the roller 42 is replaced by being directly connected to the protection assembly 3 on the horizontal driving assembly of the welding head 21, and the vertical driving assembly driving the welding head 21 to move up and down is also connected to the horizontal driving assembly, so that the protection assembly 3 moves with the horizontal movement of the welding head 21.

[0034] As shown in the figure, Figure 2 The protection assembly 3 also includes a mounting seat 33 connected to the inner side of the top end of the side frame, and the bracket 31 is connected to the mounting seat 33 through up-and-down sliding connection at the corresponding end, and the mounting seat 33 is also connected with an elastic driving assembly driving the bracket 31 to move downward; the elastic driving assembly includes a plurality of compression springs 331, the upper end of which is connected to the mounting seat 33, and the lower end is connected to the bracket 31, driving the bracket 31 to move downward to abut the protection cover 32 on the tab;

[0035] In the embodiment, the lower end of the mounting seat 33 is connected with a vertical guide rod, a compression spring 331 is sleeved outside the guide rod, the top of the support 31 is connected with a corresponding top plate, when the support 31 is moved from bottom to top for installation, the guide rod penetrates through the top plate, and the compression spring 331 is abutted between the mounting seat 33 and the top plate, so that the elastic driving function is realized; and the protection cover 32 in the embodiment is detachably connected below the support 31 through screws on both sides, the protection cover 32 is U-shaped, when installed, the protection cover 32 is not installed first, after the installation of the support 31 through the guide rod is completed, the protection cover 32 structure below is connected, so that after installation, the protection cover 32 can be abutted downward under the action of the compression spring 331 and the self weight;

[0036] In some other embodiments, the inner side of the side frame can also be connected with a vertical sliding rail, and the support 31 is connected through the vertical sliding rail, so that the stability of the up and down movement of the support 31 is improved, and the side frame can be symmetrically arranged as two or only one.

[0037] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and the modification or equivalent replacement should also be regarded as falling within the protection scope of the technical scheme of the present application.

Claims

1. A welding device for conveniently welding electrode tabs and top covers, characterized in that: The application relates to a welding device for welding the tab and the top cover, which comprises a machine body, a welding device and a protection assembly, wherein the welding device comprises a welding head moving up and down, the welding head moves downwards to realize the welding of the tab and the top cover; the protection assembly comprises a support moving up and down and a protection cover at the lower end of the support, the protection cover is arranged on the upper side of the tab downwards, and the upper end of the support is arranged on the path of the upward movement of the welding head.

2. The welding device of claim 1, wherein: A limiting block is arranged in the support, the limiting block is located directly above the welding head, the limiting block is pushed upwards when the welding head moves upwards, and the protection cover is driven to move away from the tab.

3. The welding device of claim 2, wherein: The limiting block is detachably connected in the support.

4. The welding device of claim 3, wherein: The limiting block is downwardly inserted into the upper side of the support.

5. The apparatus for welding the tab and the top cover according to claim 4, wherein: A positioning pin is arranged in the support, a plurality of positioning holes at different heights are arranged on the limiting block, and the positioning pin is inserted into a certain positioning hole.

6. The welding device of claim 1 or 2, wherein: The protection assembly further comprises a mounting seat, the support is slidably connected to the mounting seat, and an elastic driving assembly for driving the support to move downwards is further connected to the mounting seat.

7. The apparatus of claim 6, wherein: The elastic driving assembly comprises a plurality of compression springs, the upper end of the compression spring is connected to the mounting seat, the lower end of the compression spring is connected to the support, and the support is driven to move downwards until the protection cover abuts against the tab.

8. The apparatus of claim 1, wherein: The welding device further comprises a horizontal driving assembly for driving the welding head to move horizontally, and the limiting block comprises a ball or a roller at the bottom.

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