CN220515908U - Welding positioning tool - Google Patents
Welding positioning tool Download PDFInfo
- Publication number
- CN220515908U CN220515908U CN202322163491.9U CN202322163491U CN220515908U CN 220515908 U CN220515908 U CN 220515908U CN 202322163491 U CN202322163491 U CN 202322163491U CN 220515908 U CN220515908 U CN 220515908U
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- Prior art keywords
- groove
- pressing plate
- welding
- plate
- positioning
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- 238000003466 welding Methods 0.000 title claims abstract description 58
- 238000003825 pressing Methods 0.000 claims abstract description 53
- 230000007704 transition Effects 0.000 claims description 27
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 239000002923 metal particle Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a welding positioning tool which comprises a base plate and a pressing plate, wherein the base plate and the pressing plate are opposite and are arranged at intervals; the backing plate is provided with a limit groove matched with the connecting sheet, and the limit groove is used for positioning the position of the connecting sheet; the groove is dodged to one side that the clamp plate is close to the backing plate has been seted up, dodge the groove and correspond the setting with the spacing groove, clamp plate and backing plate surface butt are held, two lugs of electric core are located dodges the inslot, and the lug is pressed from both sides tightly between clamp plate and connection piece, through setting up with connection piece assorted spacing groove, place the connection piece in the spacing inslot, can fix a position the position of connection piece, avoid connection piece position offset, the lug butt of electric core is dodging the inslot, when making clamp plate and backing plate subsides, the lug of electric core and the surface butt of connection piece, and then can compress tightly the position between them and realize the location, the operation process is simple and convenient, high efficiency, the electric core assembly welding of being convenient for uses.
Description
Technical Field
The utility model relates to the technical field of lithium battery production, in particular to a welding positioning tool.
Background
In the existing battery cell assembly process, the battery cell tab and the connecting sheet are required to be welded together through high-frequency mechanical vibration by an ultrasonic welding machine, so that a welding tool is often used.
The utility model discloses a power battery tab ultrasonic welding location frock clamp of number CN208483370U, including ultrasonic welding auxiliary frame and ultrasonic welding location frame, the ultrasonic welding location frame includes the collet board, location elbow clamp and two sets of core package locating pieces, a battery cell has been put respectively to the higher authority of every set of core package locating piece, be equipped with gasket locating piece fixed block on the intermediate position of two battery cells on this collet board upper portion, be fixed with the gasket locating piece in the both sides recess of gasket locating piece fixed block, be fixed with a set of gasket on the gasket locating piece, the gasket covers on the tab of battery cell, the lower part of tab is equipped with the connection piece, the upper portion of battery cell is still covered core package location apron; in the prior art, when welding and positioning the connecting sheet and the battery cell electrode lug, positioning is needed to be realized by means of an external auxiliary tool clamp, and the operation is complex, the efficiency is low, and inconvenience is caused for welding the battery cell and the connecting sheet.
Disclosure of Invention
In view of the above, the utility model provides a welding positioning tool which can realize the rapid positioning of a connecting sheet and a battery cell tab, is accurate in positioning, does not shake, is simple and convenient in operation process, is high in efficiency, and is convenient for assembling, welding and use of the battery cell.
The technical scheme of the utility model is realized as follows: the utility model provides a welding positioning tool, which comprises a base plate and a pressing plate, wherein,
the backing plate and the pressing plate are opposite and are arranged at intervals;
the backing plate is provided with a limit groove matched with the connecting sheet, and the limit groove is used for positioning the position of the connecting sheet;
an avoidance groove is formed in one side, close to the base plate, of the pressing plate, the avoidance groove is arranged corresponding to the limiting groove, the pressing plate abuts against the surface of the base plate, two lugs of the battery cell are located in the avoidance groove, and the lugs are clamped between the pressing plate and the connecting sheet.
On the basis of the technical scheme, preferably, the inner contour shape of the limiting groove is matched with the outer contour shape of the connecting sheet, and the side walls of the connecting sheet are respectively abutted against the inner walls of the limiting groove.
On the basis of the technical scheme, preferably, the depth of the limit groove is matched with the thickness of the connecting sheet, the connecting sheet is abutted in the limit groove, and one side surface of the connecting sheet, which is close to the pressing plate, is flush with the end surface of the backing plate.
On the basis of the technical scheme, preferably, the inner outline shape of the avoidance groove is identical to the inner outline shape of the limit groove, the depth of the avoidance groove is identical to the thickness of the electrode lug of the battery cell, the electrode lug of the battery cell extends into the avoidance groove, and the electrode lug surface of the battery cell is flush with the end face of one side of the pressing plate, which is close to the backing plate.
On the basis of the technical scheme, preferably, the edge of one side of the backing plate opposite to the pressing plate is provided with a first transition chamfer, two sides of the joint of the lug of the battery cell and the core pack are provided with second transition chamfers, and the shapes of the first transition chamfers and the second transition chamfers are matched.
On the basis of the technical scheme, preferably, the electrode lug of the battery cell stretches into the avoidance groove, and the inner wall of the second transition chamfer is completely abutted with the outer wall of the first transition chamfer.
On the basis of the technical proposal, the utility model preferably further comprises a plurality of positioning parts, wherein,
the positioning parts are fixed on one side of the backing plate, which is close to the pressing plate, and extend towards one side of the pressing plate;
one side of the pressing plate, which is close to the backing plate, is provided with positioning grooves corresponding to the positioning parts, and when the pressing plate is abutted against the backing plate, each positioning part stretches into the corresponding positioning groove and is used for pre-positioning between the pressing plate and the backing plate.
On the basis of the technical scheme, preferably, the positioning parts are arranged along the edge of the limiting groove, and one side of the positioning parts, which is close to the limiting groove, is inclined and used for guiding the placing connecting sheet.
On the basis of the technical scheme, preferably, a plurality of welding holes which are communicated with the avoidance grooves are formed in the pressing plate, the positions of the welding holes correspond to the positions of the lugs of the battery cell extending into the avoidance grooves, and the welding holes are used for reserving space for welding heads.
On the basis of the technical scheme, preferably, the number of the welding holes is four, and the four welding holes are distributed in a central symmetry mode with the center point of the pressing plate.
Compared with the prior art, the welding positioning tool has the following beneficial effects:
(1) Through setting up the spacing groove that matches with the connection piece, place the connection piece in the spacing groove, can fix a position the position of connection piece, avoid connection piece position skew, with the utmost point ear butt of electric core in dodging the inslot, when making clamp plate and backing plate paste, the utmost point ear butt to electric core and the surface butt of connection piece, and then can compress tightly the position between them and realize the location, the operation is simple and convenient, efficient, the electric core assembly welding of being convenient for uses;
(2) The shape of the first transition chamfer is matched with that of the second transition chamfer, so that the extending length of the lug of the battery cell can be positioned, and the stressed tearing of the lug in the welding process can be avoided;
(3) The locating piece and the locating slot that set up can realize the quick location between clamp plate and the backing plate, and simultaneously, the locating piece is close to the spacing groove side and is the inclined plane setting, can play the guide effect when putting into the connection piece, the assembly of being convenient for.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a welding positioning tool in a fitting state;
FIG. 2 is an exploded view of FIG. 1 of the weld fixture of the present utility model;
FIG. 3 is a perspective view of a backing plate of the welding positioning tool of the present utility model;
FIG. 4 is a perspective view of a platen of the welding positioning tool of the present utility model;
fig. 5 is a perspective view of the welding positioning tool in a state that a backing plate is separated from a pressing plate.
Detailed Description
The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
As shown in fig. 1-5, the welding positioning tool comprises a base plate 1 and a pressing plate 2, wherein the base plate 1 and the pressing plate 2 are opposite and are arranged at intervals; a limit groove 100 matched with the connecting sheet is formed in the base plate 1, and the limit groove 100 is used for positioning the position of the connecting sheet; one side of the pressing plate 2, which is close to the backing plate 1, is provided with an avoidance groove 200, the avoidance groove 200 is arranged corresponding to the limit groove 100, the pressing plate 2 abuts against the surface of the backing plate 1, two lugs of the battery cell are positioned in the avoidance groove 200, and the lugs are clamped between the pressing plate 2 and the connecting sheet.
It should be noted that in the existing battery cell assembly process, the connecting sheet and the tabs of the two battery cells need to be welded together, wherein the polarities of the tabs at the same position, which are oppositely arranged, of the two battery cells are the same, and the tabs at the same position of the two adjacent battery cells are connected by the connecting sheet, so that parallel output of the two battery cells is realized.
According to the embodiment, the connecting piece is placed in the limiting groove 100, and the limiting groove 100 is matched with the connecting piece, so that the position of the connecting piece can be positioned, the position deviation of the connecting piece is avoided, meanwhile, the lug of the battery cell is abutted in the avoidance groove 200, the pressing plate 2 is attached to the base plate 1, the lug of the battery cell is abutted with the surface of the connecting piece, the connecting position of the lug of the connecting piece and the lug of the battery cell can be pressed for quick positioning, the operation process is simple and convenient, the efficiency is high, and the battery cell is convenient to assemble, weld and use.
In this embodiment, the inner contour shape of the limiting groove 100 is adapted to the outer contour shape of the connecting piece, and the side walls of the connecting piece are respectively abutted against the inner walls of the limiting groove 100.
It should be noted that, when the connecting piece is placed into the limiting groove 100, the outer side wall of the connecting piece is abutted against the inner side wall of the limiting groove 100, so that the connecting piece cannot move in the limiting groove 100, and therefore the position of the connecting piece is positioned, and the position deviation of the connecting piece is avoided.
In this embodiment, the depth of the limit groove 100 is adapted to the thickness of the connecting piece, the connecting piece is abutted in the limit groove 100, and the connecting piece is close to one side surface of the pressing plate 2 and is flush with the end surface of the backing plate 1, so that the tab of the battery cell can be conveniently contacted with the connecting piece, and the back surface of the tab is abutted with the surface of the backing plate 1, so that the contact area is enlarged, and no fold condition occurs.
The inner contour shape of the avoidance groove 200 in the embodiment is the same as that of the limit groove 100, the depth of the avoidance groove 200 is the same as the thickness of the electrode lug of the battery core, the electrode lug of the battery core extends into the avoidance groove 200, and the electrode lug surface of the battery core is flush with the end face of the pressing plate 2, which is close to one side of the backing plate 1.
It should be noted that, after the battery cell tab contacts with the connection piece, when the pressing plate 2 is attached to the backing plate 1, the connection piece is located in the avoidance groove 200 at this time, and two end faces of the battery cell tab are respectively and completely abutted with the inner wall of the avoidance groove 200 and the surface of the connection piece, so that the pressing plate 2 can be attached to the backing plate 1 to position the battery cell tab and the connection piece.
On the basis of the above technical scheme, preferably, the edge of one side of the backing plate 1 opposite to the pressing plate 2 is provided with a first transition chamfer 300, two sides of the joint of the tab of the battery core and the core pack are provided with second transition chamfers 310, and the shapes of the first transition chamfers 300 and the second transition chamfers 310 are matched.
In addition, the tab of the battery core extends into the avoidance groove 200, and the inner wall of the second transition chamfer 310 is completely abutted against the outer wall of the first transition chamfer 300.
It should be noted that, when the tab of the battery core stretches into between the pressing plate 2 and the backing plate 1, and when the tab is abutted against the surface of the connecting piece, the tab stretching length of the battery core can be positioned by abutting the second transition chamfer 310 at the tab connection position against the edge of the first transition chamfer 300 on the pressing plate 2 and the backing plate 1, and meanwhile, stress tearing of the tab in the welding process can be avoided through the first transition chamfer 300 and the second transition chamfer 310.
Specifically, the first transition chamfer 310 and the second transition chamfer 310 are both circular arc transition chamfers.
The embodiment also comprises a plurality of positioning parts 4, wherein the positioning parts 4 are fixed on one side of the backing plate 1 close to the pressing plate 2 and extend towards one side of the pressing plate 2; the positioning groove 400 corresponding to the positioning part 4 is formed in one side of the pressing plate 2 close to the backing plate 1, and when the pressing plate 2 is in butt joint with the backing plate 1, each positioning part 4 stretches into the corresponding positioning groove 400 to be used for pre-positioning between the pressing plate 2 and the backing plate 1.
The platen 2 moves toward the pad 1, and the platen 2 and the pad 1 are engaged with each other to quickly position the platen 2 with respect to the pad 1.
In addition, a plurality of positioning portions 4 are arranged along the edge of the limiting groove 100, and one side, close to the limiting groove 100, of the positioning portions 4 is inclined and used for guiding the placing connecting sheet.
Specifically, four positioning portions 4 are disposed at the edge of each limiting groove 100, wherein two positioning portions 4 are disposed at the edges of the front side and the rear side of the limiting groove 100, so that positioning between the pressing plate 2 and the backing plate 1 can be achieved, and the lugs of the battery cell can be positioned.
It can be understood that when the tab of the battery core extends into the connecting piece of the backing plate 2, one side of the tab of the battery core is abutted against the side face of the adjacent positioning part 4, so that the positioning of the welding position is realized.
A plurality of welding holes 210 which are communicated with the avoidance groove 200 are formed in the pressing plate 2 in the embodiment, the positions of the welding holes 210 correspond to the positions of the lugs of the battery cell extending into the avoidance groove 200, and the welding holes 210 are used for reserving space for a welding head.
It should be noted that, when the welding head stretches into the welding hole 210 to work so that the battery cell tab and the connecting sheet are welded, the dust extraction device is arranged above the welding hole 210 to extract the metal particles generated in the welding process, so that the metal particles are prevented from entering the battery cell, and short circuits are avoided.
Specifically, the number of the welding holes 210 is four, and the four welding holes 210 are distributed symmetrically with respect to the center point of the platen 2.
The working principle of the utility model is as follows:
firstly, the corresponding connecting piece is placed in the limit groove 100 of the base plate 1 to realize the accurate positioning of the position of the connecting piece, then the electrode lug of the battery core is placed on the corresponding connecting piece according to the polarity, then the pressing plate 2 is buckled with the base plate 1, the positioning between the pressing plate 2 and the base plate 1 is realized through the positioning part 4 and the positioning groove 400, and then the welding head extends into the welding hole 210 to work so as to weld the electrode lug of the battery core with the connecting piece.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. Welding positioning tool, its characterized in that: comprises a backing plate (1) and a pressing plate (2), wherein,
the backing plate (1) and the pressing plate (2) are opposite and are arranged at intervals;
a limit groove (100) matched with the connecting sheet is formed in the base plate (1), and the limit groove (100) is used for positioning the position of the connecting sheet;
one side of the pressing plate (2) close to the backing plate (1) is provided with an avoidance groove (200), the avoidance groove (200) is correspondingly arranged with the limiting groove (100), the pressing plate (2) is propped against the surface of the backing plate (1), two lugs of the battery cell are positioned in the avoidance groove (200), and the lugs are clamped between the pressing plate (2) and the connecting sheet.
2. The welding positioning fixture of claim 1, wherein: the inner contour shape of the limiting groove (100) is matched with the outer contour shape of the connecting sheet, and the side walls of the connecting sheet are respectively abutted against the inner walls of the limiting groove (100).
3. The welding positioning fixture of claim 1, wherein: the depth of seting up of spacing groove (100) suits with the thickness of connection piece, and the connection piece butt is in spacing groove (100), and its connection piece is close to one side of clamp plate (2) and the terminal surface looks parallel and level of backing plate (1).
4. The welding positioning fixture of claim 1, wherein: the inner contour shape of the avoidance groove (200) is the same as that of the limit groove (100), the depth of the avoidance groove (200) is the same as the thickness of the electrode lug of the battery cell, the electrode lug of the battery cell extends into the avoidance groove (200), and the electrode lug surface of the battery cell is flush with the end face of the pressing plate (2) close to one side of the backing plate (1).
5. The welding positioning fixture of claim 1, wherein: the electrode lug of electric core and the junction both sides of core package all are provided with second transition chamfer (310), and the shape looks adaptation of first transition chamfer (300) and second transition chamfer (310) are all provided with first transition chamfer (300) in the edge of one side that backing plate (1) is relative with clamp plate (2).
6. The welding positioning fixture of claim 5, wherein: the electrode lug of the battery core stretches into the avoidance groove (200), and the inner wall of the second transition chamfer (310) is completely abutted with the outer wall of the first transition chamfer (300).
7. The welding positioning fixture of claim 1, wherein: also comprises a plurality of positioning parts (4), wherein,
the positioning parts (4) are fixed on one side of the base plate (1) close to the pressing plate (2) and extend towards one side of the pressing plate (2);
one side of the pressing plate (2) close to the backing plate (1) is provided with a positioning groove (400) corresponding to the positioning part (4), and when the pressing plate (2) is in butt joint with the backing plate (1), each positioning part (4) stretches into the corresponding positioning groove (400) to be used for pre-positioning between the pressing plate (2) and the backing plate (1).
8. The weld fixture of claim 7, wherein: the locating parts (4) are arranged along the edges of the limiting grooves (100), and one sides of the locating parts (4) close to the limiting grooves (100) are inclined planes and used for guiding the placing connecting sheets.
9. The welding positioning fixture of claim 1, wherein: a plurality of welding holes (210) which are communicated with the avoidance grooves (200) are formed in the pressing plate (2), the positions of the welding holes (210) correspond to the positions of the lugs of the battery cell extending into the avoidance grooves (200), and the welding holes (210) are used for reserving space for welding heads.
10. The weld fixture of claim 9, wherein: the number of the welding holes (210) is four, and the four welding holes (210) are distributed in a central symmetry mode through the center point of the pressing plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322163491.9U CN220515908U (en) | 2023-08-11 | 2023-08-11 | Welding positioning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322163491.9U CN220515908U (en) | 2023-08-11 | 2023-08-11 | Welding positioning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220515908U true CN220515908U (en) | 2024-02-23 |
Family
ID=89936993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322163491.9U Active CN220515908U (en) | 2023-08-11 | 2023-08-11 | Welding positioning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220515908U (en) |
-
2023
- 2023-08-11 CN CN202322163491.9U patent/CN220515908U/en active Active
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