CN218109793U

CN218109793U - Welding fixture

Info

Publication number: CN218109793U
Application number: CN202221919594.2U
Authority: CN
Inventors: 范虎斌
Original assignee: Jingmen Zhonggong Machinery Co ltd
Current assignee: Jingmen Zhonggong Machinery Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-12-23
Anticipated expiration: 2032-07-21

Abstract

The utility model relates to the technical field of battery welding, in particular to a welding fixture, which solves the problems of the prior art that the positioning is not accurate enough and the welding efficiency is low when the battery pack is subjected to laser spot welding; the battery positioning device comprises a second positioning mechanism, a first positioning mechanism and a connecting assembly, wherein the connecting assembly is respectively connected with the second positioning mechanism and the first positioning mechanism, a bottom groove for accommodating the bottom of a battery is formed in the second positioning mechanism, a first through hole for welding is formed in the bottom groove, a top groove for accommodating the top of the battery is formed in the first positioning mechanism, a second through hole for welding is formed in the top groove, and an accommodating groove for accommodating the battery and corresponding to the bottom groove and the top groove is formed in a connecting block; the second positioning mechanism, the first positioning mechanism and the connecting assembly which are convenient to disassemble are adopted, and only the first through holes and the second through holes which are distributed at equal intervals need to be butted for welding during welding, so that the accuracy of the welding position of the battery and the connecting sheet is ensured.

Description

Welding fixture

Technical Field

The utility model relates to a battery welding technology field, concretely relates to welding jig.

Background

When the battery pack is produced, the positive ends of a plurality of batteries are welded with one connecting sheet, and the negative ends of the plurality of batteries are welded with the other connecting sheet. The tooling, i.e. the process equipment, refers to a general name of various tools used in the manufacturing process, for example, when the storage battery is butt-welded, the storage battery is fixed by using a clamp, and the tooling is also one type of tooling.

In the prior art, in the butt welding of storage batteries, a plurality of electrode ends of the storage batteries are usually connected by using a conductive piece, the electrode ends are subjected to spot welding, namely, a positive electrode end and a negative electrode end of each battery are respectively welded with a connecting piece, and the batteries are firstly moved manually and are contacted with the welding position of the connecting piece, and then are welded. However, the product technology has high requirements on the accuracy and the uniformity of spot welding, the battery is manually moved, the production efficiency is low, the accuracy and the precision of the welding position of the battery and the connecting sheet cannot be guaranteed, welding deviation is easily caused, and accordingly the battery shell is damaged. Now appear ligaturing between with the battery through the bandage, make it be a whole, promote whole by the laser spot welding device on top to carry out the butt welding to it, such ligature mode, firm stability inadequately, easily misplace between the battery, the range is not neat, easily the error appears when leading to spot welding, reduces butt welding efficiency and butt welding quality scheduling problem.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides a welding jig to fix a position when carrying out laser spot welding to battery pack among the solution prior art accurate, the lower problem of welding efficiency inadequately.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

welding jig, its characterized in that includes:

the end part positioning assembly comprises a first positioning mechanism and a second positioning mechanism arranged opposite to the first positioning mechanism, and is used for limiting the end part of the battery, and welding holes for welding the end part of the battery and the connecting sheet to be welded are formed in the surfaces of the first positioning mechanism and the second positioning mechanism;

the connecting assembly comprises an adjustable connecting part and a limit supporting part, wherein the adjustable connecting part is used for connecting the first positioning mechanism and the second positioning mechanism, and the limit supporting part is connected with the adjustable connecting part.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the limiting and supporting part comprises an auxiliary positioning part arranged between the first positioning mechanism and the second positioning mechanism and protection parts arranged on two sides of the auxiliary positioning part.

Furthermore, the adjustable connecting portion comprises a lifting moving member arranged inside the protection member and a fixing member for fixing the movable position of the lifting moving member.

Furthermore, one end of the lifting movable piece, which is far away from the protection piece, is connected with the first positioning mechanism and/or the second positioning mechanism.

Furthermore, the lifting moving part consists of a piston and a sleeve sleeved on the surface of the piston rod, the surfaces of the sleeve and the protection part are respectively provided with a plugging hole for the fixing part to enter, the sleeve is communicated with the plugging hole on the surface of the protection part, and after the fixing part plugs the plugging hole, the interior of the sleeve of the lifting moving part is in a sealing state.

Furthermore, first positioning mechanism all is platelike structure with the whole second positioning mechanism that all is, and the relative department of first positioning mechanism and second positioning mechanism all is equipped with carries out spacing mounting groove to the battery tip, the inside of mounting groove is equipped with the draw-in groove of packing into in order to supply the welding at the connection piece of battery tip.

Further, the inside of mounting groove is equipped with and carries out absorbent absorption piece to the battery.

Furthermore, the mounting grooves of the first positioning mechanism and the second positioning mechanism are communicated with the welding hole.

Furthermore, the whole welding hole is of a conical structure which is gradually folded from the outside of the first positioning mechanism and the second positioning mechanism to the inside of the mounting groove.

Furthermore, the surfaces of the first positioning mechanism and the second positioning mechanism are provided with fool-proof pieces for identifying the first positioning mechanism and the second positioning mechanism.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

the utility model discloses a connecting portion with adjustable tip locating component and, can be carrying out the welded in-process to the battery, fix a position the battery and need the connection piece of welding on the battery tip simultaneously, the welded position's of battery and connection piece accuracy nature has been guaranteed, be difficult to cause the welding skew, and simultaneously, via the adjustable connecting portion that establish, can effectually adapt to the whole height of the different batteries that the erection joint piece of treating brought to different thickness, and has the advantages of simple structure, high operation efficiency, high welding efficiency, safety, etc.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic front sectional view of FIG. 1;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

In the drawings, the components represented by the respective reference numerals are listed below:

1. an end positioning assembly; 11. a first positioning mechanism; 12. a second positioning mechanism; 13. mounting grooves; 14. an adsorbing member; 15. welding the hole; 2. a connecting assembly; 21. an adjustable connecting part; 211. a lifting movable piece; 212. a fixing member; 22. a limiting support part; 221. an auxiliary positioning member; 222. a guard; 3. fool-proof pieces.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

It will be understood that spatial relationship terms, such as "under", "below", "beneath", "below", "over", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "under" can encompass both an orientation of above and below. In addition, the device may comprise additional orientations (e.g., rotated 90 degrees or other orientations) and the spatial descriptors used herein interpreted accordingly.

The welding jig shown in fig. 1-4 includes an end positioning component 1 for clamping and positioning two ends of a battery to be welded and a connecting component 2 for connecting end components.

Wherein, tip locating component 1 includes first positioning mechanism 11 and the relative second positioning mechanism 12 that sets up with first positioning mechanism 11 for carry on spacingly to the tip of battery, it is concrete, first positioning mechanism 11 all is platelike structure with second positioning mechanism 12 is whole, and the relative department of first positioning mechanism 11 and second positioning mechanism 12 all is equipped with carries out spacing mounting groove 13 to the battery tip, the inside of mounting groove 13 is equipped with the draw-in groove of packing into in order to supply the connection piece of welding at the battery tip, and considers that battery positive and negative pole shape are different, and the draw-in groove in first positioning mechanism 11 and the second positioning mechanism 12 is an outside protruding and another inside sunken state distribution of mounting groove 13 to ensure the battery and wait to weld the steady joint of connection piece in its inside.

Further, coupling assembling 2 is including the adjustable connecting portion 21 of connecting first positioning mechanism 11 and second positioning mechanism 12 and the limit support portion 22 that links to each other with adjustable connecting portion 21, and wherein, limit support portion 22 is platelike structure, can protect adjustable connecting portion 21, and simultaneously, limit support portion 22 also can support first positioning mechanism 11, second positioning mechanism 12 and treat the welded battery.

The first positioning member mechanism corresponds to the mounting grooves 13 on the second positioning mechanism 12 one by one, and each battery corresponds to one group of mounting grooves 13. Spacing supporting part 22, the through hole has all been seted up on the side of first positioning mechanism 11 and second positioning mechanism 12, connecting portion 21 with adjustable can be placed in the through hole, in welding process, can pack into the inside to mounting groove 13 with the connection piece to treat welded battery, will hug closely first positioning mechanism 11 with second positioning mechanism 12 to the tip of battery via connecting portion 21 with adjustable, the quick battery tip links together with the connection piece, what this moment can be smooth welds.

Meanwhile, considering that a plurality of batteries need to be welded simultaneously, the batteries are separated and supported at the side edges of the batteries during welding, a limit support part 22 for supporting the side edges of the batteries needs to be arranged between the first positioning mechanism 11 and the second positioning mechanism 12, specifically, the limit support part 22 comprises an auxiliary positioning part 221 arranged between the first positioning mechanism 11 and the second positioning mechanism 12 and a protection part 222 arranged at two sides of the auxiliary positioning part 221, an accommodating groove for accommodating the batteries is arranged on the surface of the auxiliary positioning part 221, the height of the auxiliary positioning part 221 is lower than that of the protection part 222, on the premise that the batteries are stably locked, materials can be saved, and the contact area between the accommodating groove and the batteries is less, so that the inserting and taking-out operations are facilitated. The protection element 222 may contact with the first positioning mechanism 11 and be far away from the second positioning mechanism 12, may contact with the second positioning mechanism 12 and be far away from the first positioning mechanism 11, and may also be far away from the first positioning mechanism 11 and be suspended from the second positioning mechanism 12, and preferably, the auxiliary positioning element 221 is connected to the second positioning mechanism 12 in an abutting manner.

A holding tank corresponds a battery, when welding battery pack, the violently erects of battery and arranges all that the equidistance is spaced, and consequently the holding tank of this scheme is located the bilateral symmetry setting of supplementary setting element 221 respectively, and the group number can increase according to actual production demand.

Because the specific processing requirements of the connecting sheet welded on the battery may have different thicknesses, the distance between the first positioning mechanism 11 and the second positioning mechanism 12 needs to be adjusted by the adjustable connecting portion 21, the adjustable connecting portion 21 includes a lifting moving part 211 arranged inside the protection part 222 and a fixing part 212 for fixing the movable rear position of the lifting moving part 211, the lifting moving part 211 can be a telescopic rod-shaped structure capable of moving inside the protection part 222, the fixing part 212 can be a bolt for fixing a telescopic rod, and specifically, one end of the lifting moving part 211, which is far away from the protection part 222, is connected with the first positioning mechanism 11 and/or the second positioning mechanism 12.

Considering that in the using process, if the lifting moving part 211 is fixed by using bolts or bolts, a plurality of bolts are often required to be screwed, the adjusting range is also limited by the number of installation holes for installing the bolts or bolts, the lifting moving part 211 preferably comprises a piston and a sleeve sleeved on the surface of a piston rod, the surfaces of the sleeve and the protection part 222 are provided with plugging holes for inserting the fixing part 212, and the sleeve is communicated with the plugging holes on the surface of the protection part 222, after the fixing part 212 is inserted into the plugging holes, the inside of the sleeve of the lifting moving part 211 is in a sealed state, when the lifting moving part 211 after adjusting the distance needs to be fixed, the fixing part 212 is screwed into the plugging holes, and the position of the lifting moving part 211 can be fixed by using air pressure, which is convenient and fast.

In order to facilitate the welding of the laser equipment, the mounting grooves 13 on the first positioning mechanism 11 and the second positioning mechanism 12 are communicated with the welding hole 15, the welding hole is integrally in a conical structure gradually drawn into the mounting groove 13 from the outside of the first positioning mechanism 11 and the outside of the second positioning mechanism 12, and a welding head can conveniently extend into the conical hole to facilitate the light condensation of the laser equipment, so that the welding effect is improved.

In order to facilitate the fixation of the connection piece during the welding and to prevent the displacement of the connection piece by turning the jig during the welding of both ends, an adsorption member 14 for adsorbing the battery is provided inside the mounting groove 13, and the adsorption member 14 is preferably a magnet.

Preferably, the surfaces of the first positioning mechanism 11 and the second positioning mechanism 12 are provided with a fool-proof piece 3 for identifying the first positioning mechanism 11 and the second positioning mechanism 12, and the fool-proof piece 3 is preferably a notch arranged on the first positioning mechanism or the second positioning mechanism 12 and used for marking the positive and negative directions of the second positioning mechanism 12, the first positioning mechanism 11 and the connecting assembly 2.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. Welding jig, its characterized in that includes:

the end part positioning assembly (1) comprises a first positioning mechanism (11) and a second positioning mechanism (12) which is arranged opposite to the first positioning mechanism (11) and used for limiting the end part of the battery, and welding holes (15) for welding the end part of the battery and the connecting piece to be welded are formed in the surfaces of the first positioning mechanism (11) and the second positioning mechanism (12);

the connecting component (2) comprises an adjustable connecting part (21) for connecting the first positioning mechanism (11) and the second positioning mechanism (12) and a limiting supporting part (22) connected with the adjustable connecting part (21).

2. The welding jig of claim 1, wherein the position limiting support part (22) comprises an auxiliary positioning part (221) arranged between the first positioning mechanism (11) and the second positioning mechanism (12) and protection parts (222) arranged at two sides of the auxiliary positioning part (221).

3. The welding fixture according to claim 2, wherein the adjustable connecting portion (21) comprises a lifting movable member (211) arranged inside the protection member (222) and a fixing member (212) for fixing the movable position of the lifting movable member (211).

4. Welding fixture according to claim 3, characterized in that the end of the lifting moving part (211) remote from the shielding part (222) is connected to the first positioning means (11) and/or the second positioning means (12).

5. The welding jig of claim 4, characterized in that the lifting moving part (211) comprises a piston and a sleeve sleeved on the surface of a piston rod, the surfaces of the sleeve and the protection part (222) are respectively provided with a blocking hole for the fixed part (212) to enter, the sleeve is communicated with the blocking hole on the surface of the protection part (222), and after the blocking hole is blocked by the fixed part (212), the interior of the sleeve of the lifting moving part (211) is in a sealed state.

6. The welding fixture according to claim 5, wherein the first positioning mechanism (11) and the second positioning mechanism (12) are both plate-shaped, the opposite positions of the first positioning mechanism (11) and the second positioning mechanism (12) are both provided with mounting grooves (13) for limiting the end parts of the battery, and the inside of each mounting groove (13) is provided with a clamping groove for installing a connecting sheet to be welded at the end part of the battery.

7. The welding jig of claim 6, wherein an adsorption member (14) for adsorbing the battery is provided inside the mounting groove (13).

8. The welding jig of claim 7, characterized in that the first positioning mechanism (11) and the mounting groove (13) of the second positioning mechanism (12) are communicated with the welding hole (15).

9. The welding fixture according to claim 8, wherein the welding hole is a tapered structure gradually converging from the outside of the first positioning mechanism (11) and the second positioning mechanism (12) to the inside of the mounting groove (13).

10. The welding fixture according to claim 9, wherein the surfaces of the first positioning mechanism (11) and the second positioning mechanism (12) are provided with fool-proof pieces (3) for identifying the first positioning mechanism (11) and the second positioning mechanism (12).