CN217166961U

CN217166961U - Auxiliary welding tool

Info

Publication number: CN217166961U
Application number: CN202123434592.2U
Authority: CN
Inventors: 李隆绥; 刘鹏; 黄堤清; 黎长发; 肖河阳
Original assignee: Guangzhou Anbo New Energy Technology Co ltd Fuzhou Branch
Current assignee: Guangzhou Anbo New Energy Technology Co ltd Fuzhou Branch
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-12
Anticipated expiration: 2031-12-31

Abstract

The utility model provides an auxiliary welding tool, including bottom plate and flip, flip with the bottom plate is connected, flip can rotate for the bottom plate and the lid closes on the bottom plate, be formed with the station that is used for putting into the work piece of waiting to weld between the bottom plate and the flip after flip closes with the bottom plate lid, and the flip forms the clamp to the work piece of waiting to weld after closing with the bottom plate lid, still set up the welding window on the flip, the welding window runs through flip, and the welding window with the station is corresponding; the auxiliary welding tool has the advantages of being reasonable in structure and capable of improving the welding efficiency and the yield of the battery connecting pieces.

Description

Auxiliary welding tool

Technical Field

The utility model belongs to the technical field of the battery connecting piece, concretely relates to auxiliary welding frock.

Background

The discharge voltage and discharge current of a single battery of the battery cannot meet the use requirement in the use process of the battery, so that the battery is often used by forming a battery pack by a plurality of batteries in a series-parallel connection mode, such as the battery pack in an electric automobile. The main connecting member for connecting the battery is generally called a tab, and in order to ensure the safety of the battery during use, or to avoid overcharge or overdischarge of the battery, the operating state of the battery needs to be monitored or detected, and at this time, a secondary connecting member needs to be arranged between the tab and an external detection monitoring module or a circuit board, and in order to ensure easy welding, oxidation resistance and corrosion resistance between the secondary connecting member and the external detection monitoring module or the circuit board, the secondary connecting member generally uses a nickel tab, that is, a connecting member needs to be formed between the main connecting member and the secondary connecting member by welding. However, in the prior art, the welding between the main connecting piece and the auxiliary connecting piece has the problems of low welding efficiency or unsatisfactory welding yield; specifically, in order to ensure reliable welding of the bus bar and the nickel plate, it is necessary to ensure that no gap exists between the bus bar and the nickel plate or the bus bar and the nickel plate need to be tightly attached, so as to avoid cold welding caused by the gap in the laser welding process, enhance the reliability of laser welding, and further ensure the signal acquisition stability of the battery or the reliability of state monitoring; at present, the nickel plate and the bar plate are pressed by hand tools, and the nickel plate and the bar plate are pressed by a magnet adsorption mode. Furthermore, the nickel sheet is pressed by a tool (such as tweezers), the consistency of the force of the operation method and whether the gap between the nickel sheet and the bus sheet is not ensured by manually pressing the nickel sheet, the efficiency is low, the mass production is difficult, and the potential safety hazard exists; the bar sheet and the nickel sheet are seamless in a magnet adsorption mode, and the problem exists that on one hand, the magnetism is not enough, so that the bar sheet and the nickel sheet cannot be tightly attached together; on the other hand, the nickel sheet is often connected to the FPC, and if the FPC is not flat, the bus sheet and the nickel sheet cannot be adsorbed together; further, the welding between the main connector and the auxiliary connector has the problems of low welding efficiency or unsatisfactory welding yield.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a rational in infrastructure, can improve battery connecting piece welding efficiency and yields's supplementary welding frock.

In order to solve the technical problem, the utility model discloses the technical scheme who uses is:

the utility model provides an auxiliary welding frock, includes bottom plate and flip, flip with the bottom plate is connected, flip can for the bottom plate rotates and the lid closes on the bottom plate, flip with the bottom plate lid closes the back be in the bottom plate with be formed with between the flip and be used for putting into the station of treating the welding workpiece, just flip with treat after the bottom plate lid closes that the welding workpiece forms and presss from both sides tightly, the welding window has still been seted up on the flip, the welding window runs through flip, just the welding window with the station is corresponding.

As a further improvement of the auxiliary welding device, the auxiliary welding device further comprises a pressing component, the pressing component is connected with the turnover cover and is located at the welding window, and the pressing component is used for pressing a workpiece which is located in the station and is located at the welding window.

As a further improvement to the auxiliary welding device, the pressing component comprises a pressing block, a sliding seat and a spring, the pressing block is connected with the sliding seat in a sliding manner, one end of the spring is abutted to the sliding seat, the other end of the spring is abutted to the pressing block, the sliding seat is fixedly connected with the flip cover, and the tail end of the pressing block faces the bottom plate after the flip cover is closed with the bottom plate cover.

As a further improvement of the auxiliary welding device, the pressing blocks are located in the welding window, at least two pressing blocks are arranged, and the pressing blocks are arranged at intervals.

As a further improvement of the auxiliary welding device, an ejector block is further arranged in the station, the ejector block is connected with the bottom plate and corresponds to the pressing block, and the ejector block and the pressing block are matched with each other and tightly press a workpiece positioned at the welding window.

As a further improvement to the auxiliary welding device, the top block is detachably connected with the bottom plate.

As a further improvement to the auxiliary welding device, an accommodating groove is formed in the bottom plate, and the top block is arranged in the accommodating groove.

As a further improvement of the auxiliary welding device, the welding windows and the top blocks are provided with a plurality of pressing assemblies, each pressing assembly is arranged in each welding window, and each top block corresponds to each pressing assembly.

As a further improvement of the auxiliary welding device, the base plate is further provided with one or more positioning pins, one end of each positioning pin is fixedly connected with the base plate, the other end of each positioning pin is a free end, and the flip cover is provided with positioning holes matched with the flip cover.

As a further improvement of the auxiliary welding device, the auxiliary welding device further comprises a locking mechanism, wherein the locking mechanism is connected with the bottom plate or the turnover cover, and the locking mechanism is used for keeping the covering state of the turnover cover and the bottom plate.

Compared with the prior art the beneficial effects of the utility model mainly appear: through setting up mutually supported bottom plate and flip, after flip and bottom plate lid closed, treat that welded work piece (piece and nickel piece) can be compressed tightly in the station, compress tightly and the magnetic force actuation compresses tightly the mode of piece and nickel piece for traditional manual work, flip and bottom plate can provide reliable and stable dynamics of compressing tightly, and then can furthest's elimination piece and the clearance between the nickel piece, make its close laminating be in the same place and then be favorable to welding set (laser) to weld, the cooperation sets up the welding window on flip simultaneously, namely, carry out welding operation to the work piece that is located the station through the welding window, and then effectively improved high battery connecting piece welded efficiency and yields.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

FIG. 1 is a schematic view of the overall structure of the auxiliary welding tool of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1 according to the present invention;

fig. 3 is the utility model discloses well auxiliary welding frock looks sideways at the schematic structure.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the illustrated embodiments are not intended to limit the present invention, and in the present embodiments, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and the present invention is described only, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as limited to the present invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like as used herein are for illustrative purposes only.

As shown in fig. 1-3, this embodiment provides an auxiliary welding fixture, which includes a base plate 1 and a flip cover 2, where the flip cover 2 is connected to the base plate 1, that is, the base plate 1 is connected to the flip cover 2 through a hinge, so that the flip cover 2 can rotate relative to the base plate 1 and cover the base plate 1, a station 3 for placing a workpiece to be welded is formed between the base plate 1 and the flip cover 2 after the flip cover 2 is covered with the base plate 1, and the flip cover 2 can clamp the workpiece to be welded after being covered with the base plate 1, that is, a bar sheet and a nickel sheet are pressed tightly in the station 3; furthermore, the flip cover 2 is further provided with a welding window 4 or a welding hole site, the welding window 4 penetrates through the flip cover 2, and the welding window 4 corresponds to the station 3, that is, a welding device, such as laser, can penetrate through the welding window 4 and perform welding operation on a part of the workpiece located in the welding window 4. Particularly, through setting up bottom plate 1 and flip 2 that mutually support, after flip 2 closes with bottom plate 1 lid, treat that welded work piece (piece and nickel piece) can be compressed tightly in station 3, compress tightly and the magnetic force actuation mode that compresses tightly piece and nickel piece for traditional manual work, flip 2 and bottom plate 1 can provide reliable and stable dynamics of compressing tightly, and then can furthest's elimination piece and the clearance between the nickel piece, make its close laminating be in the same place and then be favorable to welding set (laser) to weld, the cooperation sets up welding window 4 on flip 2 simultaneously, namely, carry out welding operation to the work piece that is located station 3 through welding window 4, and then effectively improved high battery connecting piece welded efficiency and yields.

As shown in fig. 1-3, in a preferred embodiment, the device further comprises a pressing component 5, the pressing component 5 is fixed with the flip cover 2 through a bolt, the pressing component 5 is located at the welding window 4, and the pressing component 5 is used for pressing a workpiece located at the welding window 4 in the station 3. Particularly, the pressing component 5 can further apply a pressing force to an area to be welded on a workpiece (connecting piece), namely, the more reliable and tight fit degree of the bus sheet and the nickel sheet is ensured, and the quality or yield of laser welding is further ensured. Further, the pressing assembly 5 includes a pressing block 51, a sliding seat 52 and a spring (not shown), the pressing block 51 is slidably connected to the sliding seat 52, one end of the spring abuts against the sliding seat 52, the other end of the spring abuts against the pressing block 51, the sliding seat 52 is fixedly connected to the flip 2, and the end of the pressing block 51 faces the bottom plate 1 after the flip 2 and the bottom plate 1 are closed. When the tool is used, the turnover cover 2 is rotated to cover the bottom plate 1, the tool can pre-clamp or fix a workpiece (a bar sheet and a nickel sheet) between the turnover cover 2 and the bottom plate 1, and meanwhile, the pressing block 51 in the pressing component 5 at the welding window 4 can further form an extrusion force on the workpiece corresponding to the pressing block 51 under the elastic action force of the spring, so that the tight fit between the bar sheet and the nickel sheet is ensured, namely, the gap between the bar sheet and the nickel sheet is eliminated to the maximum extent, and the welding quality is further ensured.

As shown in fig. 1-3, in the preferred embodiment, the pressing blocks 51 are located in the welding window 4, at least two pressing blocks 51 are provided, and the pressing blocks 51 are spaced from each other, so that the workpiece regions at both sides of the welding seam can obtain reliable pressing force; specifically, the welding window 4 often corresponds to a part to be welded on the workpiece, and if only one pressing block 51 is used, the region on the welding seam side without being pressed by the pressing block 51 may be deformed by heating the workpiece during welding, that is, a gap is generated between the nickel sheet and the bar sheet due to the deformation of the nickel sheet, thereby affecting the welding quality. Further, a top block 6 is arranged in the station 3, the top block 6 is connected with the bottom plate 1, the top block 6 corresponds to the pressing block 51, the top block 6 and the pressing block 51 are matched with each other and tightly press the workpiece at the welding window 4, and the top block 6 is detachably connected with the bottom plate 1; particularly, the holding tank 11 has been seted up on the bottom plate 1, and in the holding tank 11 was arranged in to kicking block 6, corresponding kicking block 6 can be changed according to the connecting piece (piece and nickel sheet) of different specifications (thickness) or according to the user demand (the requirement that compresses tightly) of difference, and then the convenience that the improvement frock used. Furthermore, a plurality of welding windows 4 and a plurality of top blocks 6 are arranged, a pressing component 5 is arranged in each welding window 4, and each top block 6 corresponds to each pressing component 5; since the battery pack is usually used after a plurality of single batteries are connected in series and in parallel, a plurality of specifications of connecting pieces are formed along with different combinations of the batteries, so that a plurality of welding windows 4 arranged on the flip cover and the pressing assemblies 5 matched with the welding windows can adapt to and weld the connecting pieces with different specifications.

As shown in fig. 1-3, in a preferred embodiment, the bottom plate 1 is further provided with one or more positioning pins 12, one end of each positioning pin 12 is fixedly connected with the bottom plate 1, the other end of each positioning pin 12 is a free end, the flip cover 2 is provided with a positioning hole 21 matched with the flip cover 2, and the positioning pins 12 and the positioning holes 21 are matched with each other to ensure the rear precision of the flip cover 2 and the bottom plate cover, so that the welding precision of connection caused by the position deviation of the flip cover 2 relative to the bottom plate 1 is further reduced. The device is characterized by further comprising a locking mechanism 7, wherein the locking mechanism 7 is connected with the bottom plate 1 or the turnover cover 2, and further the locking mechanism 7 is used for keeping the covering state of the turnover cover 2 and the bottom plate, namely keeping the turnover cover 2 and the bottom plate 1 in a pressing state on the bus sheet and the nickel sheet which are positioned at the station 3; after the welding of the workpiece arranged in the tool is finished, the locking mechanism 7 is unlocked, and at the moment, the turnover cover 2 can be opened and the welded connecting piece can be taken out.

In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. The utility model provides an auxiliary welding frock which characterized in that: including bottom plate and flip, flip with the bottom plate is connected, flip can for the bottom plate rotates and the lid closes on the bottom plate, flip with the bottom plate lid closes the back be in the bottom plate with be formed with between the flip and be used for putting into the station of waiting to weld the work piece, just flip with the bottom plate lid closes the back and treats to weld the work piece and form the clamp tightly, welding window has still been seted up on the flip, welding window runs through flip, just welding window with the station is corresponding.

2. The auxiliary welding tool of claim 1, wherein: the workpiece pressing device comprises a station, a turnover cover and a pressing component, wherein the station is arranged on the station, the turnover cover is arranged on the station, the pressing component is connected with the turnover cover and is located at the welding window, and the pressing component is used for pressing a workpiece which is located in the station and is located at the welding window.

3. The auxiliary welding tool of claim 2, wherein: the pressing assembly comprises a pressing block, a sliding seat and a spring, the pressing block is connected with the sliding seat in a sliding mode, one end of the spring is connected with the sliding seat in an abutting mode, the other end of the spring is connected with the pressing block in an abutting mode, the sliding seat is fixedly connected with the turning cover, and the turning cover and the bottom plate cover are closed, and then the tail end of the pressing block faces towards the bottom plate.

4. The auxiliary welding tool of claim 3, wherein: the briquetting is located in the welding window, the briquetting is provided with two at least, just the briquetting sets up at interval each other.

5. The auxiliary welding tool according to claim 3 or 4, characterized in that: the station is also internally provided with an ejector block, the ejector block is connected with the bottom plate and corresponds to the pressing block, and the ejector block and the pressing block are mutually matched and tightly press a workpiece positioned at the welding window.

6. The auxiliary welding tool of claim 5, wherein: the top block is detachably connected with the bottom plate.

7. The auxiliary welding tool of claim 6, wherein: the bottom plate is provided with a containing groove, and the top block is arranged in the containing groove.

8. The auxiliary welding tool of claim 5, wherein: the welding window with the kicking block all is provided with a plurality ofly, every all be provided with in the welding window compress tightly the subassembly, just the kicking block respectively with every compress tightly the subassembly corresponding.

9. The auxiliary welding tool according to any one of claims 1-4, wherein: the base plate is further provided with one or more positioning pins, one ends of the positioning pins are fixedly connected with the base plate, the other ends of the positioning pins are free ends, and the turnover cover is provided with positioning holes matched with the turnover cover.

10. The auxiliary welding tool according to any one of claims 1 to 4, wherein: the locking mechanism is connected with the bottom plate or the turnover cover and used for keeping the turnover cover and the bottom plate in a covering state.