CN206717300U - Battery core welding tooling - Google Patents
Battery core welding tooling Download PDFInfo
- Publication number
- CN206717300U CN206717300U CN201720540039.1U CN201720540039U CN206717300U CN 206717300 U CN206717300 U CN 206717300U CN 201720540039 U CN201720540039 U CN 201720540039U CN 206717300 U CN206717300 U CN 206717300U
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- battery core
- anchor plate
- deck assembly
- briquetting
- bottom deck
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Abstract
The application is related to frock technical field, more particularly to a kind of battery core welding tooling, including the Anchor plate kit and bottom deck assembly being oppositely arranged, and the Anchor plate kit is used to compress pole and the lug of battery core with the bottom deck assembly；The Anchor plate kit is provided with welding hole, the welding hole penetrates the Anchor plate kit along the direction formed between the Anchor plate kit and the bottom deck assembly, and can be relative with the lug, in order to be welded by the welding hole to the lug and the pole.The application can avoid barrier film caused by welding particles splatter from piercing through or burn, and to prevent the short circuit of battery core, ensure the security of battery core.
Description
Technical field
The application is related to frock technical field, more particularly to a kind of battery core welding tooling.
Background technology
, it is necessary to lug is connected with pole, in the prior art, usually using lug with being flexible coupling in the production of aluminum hull battery core
Piece welds, and be flexible coupling mode of the piece again with pole welding.Obviously, this mode is in soldering polar ear and be flexible coupling piece, or soft company
When during contact pin and pole, the welding particle of high temperature can be produced, welding particles splatter may cause barrier film pierce through or
Burn, influences battery core internal resistance, or even can cause battery core internal short-circuit, brings the hidden danger in security performance.
Utility model content
This application provides a kind of battery core welding tooling, above mentioned problem can solve the problem that.
This application provides a kind of battery core welding tooling, including the Anchor plate kit and bottom deck assembly being oppositely arranged, the pressure
Board component is used to compress pole and the lug of battery core with the bottom deck assembly；The Anchor plate kit is provided with welding hole, described
Welding hole penetrates the Anchor plate kit along the direction formed between the Anchor plate kit and the bottom deck assembly, and can be with institute
It is relative to state lug, in order to be welded by the welding hole to the lug and the pole.
Preferably, the Anchor plate kit includes body and briquetting, and the briquetting is connected to the body, the Anchor plate kit
The lug and the pole are compressed by the briquetting；The welding hole is arranged on the briquetting, and penetrates the briquetting.
Preferably, the briquetting includes compressed part, and the area of the cross section of the compressed part points to along the Anchor plate kit
The direction of the bottom deck assembly is gradually reduced, and the cross section is perpendicular to the Anchor plate kit side relative with the bottom deck assembly
To the briquetting compresses the lug and the pole by the compressed part；The welding hole is arranged at the compressed part.
Preferably, the briquetting also includes location division, and the welding hole penetrates the location division；The body is provided with fixed
Position hole, the location division and the positioning hole location fit.
Preferably, the briquetting is movably connected on described along the Anchor plate kit direction relative with the bottom deck assembly
Body.
Preferably, the briquetting is provided with multiple.
Preferably, the side of the bottom deck assembly towards the Anchor plate kit is provided with position limiting structure, the position limiting structure
It can be offseted with the pole.
Preferably, the lateral plate component of the Anchor plate kit and the bottom deck assembly, the lateral plate component are arranged in addition to
Including side plate, the side plate is arranged between the Anchor plate kit and the bottom deck assembly.
Preferably, the bottom deck assembly also includes position limiting structure；The lateral plate component also includes compressing structure, the compression
Structure is relative with the position limiting structure, and the two is used to compress the battery core along the short transverse of the battery core.
Preferably, the compressing structure includes spring-loaded plunger, and the side plate is fixed in one end of the spring-loaded plunger, described
Compressing structure compresses the battery core by the spring-loaded plunger.
The technical scheme that the application provides can reach following beneficial effect：
Battery core welding tooling provided herein, Anchor plate kit set welding hole, in soldering polar ear and pole, by electricity
Core is positioned between Anchor plate kit and bottom deck assembly, and lug and pole are compressed, and laser is through welding hole to lug and pole
Welded.This frock, in welding process, stop to return even if there is high-temperature particle splashing to be also soldered the side wall in hole,
Remain in welding hole or the surface of lug, so as to avoid barrier film caused by welding particles splatter from piercing through or burn, with
The short circuit of battery core is prevented, ensures the security of battery core.
It should be appreciated that the general description and following detailed description of the above are only exemplary, this can not be limited
Application.
Brief description of the drawings
Fig. 1 is a kind of structural representation of specific embodiment of battery core welding tooling provided herein；
Fig. 2 is a kind of explosive view of specific embodiment of battery core welding tooling provided herein；
Fig. 3 is a kind of sectional view of specific embodiment of battery core welding tooling provided herein；
Fig. 4 is the structural representation of a kind of specific embodiment of Anchor plate kit in battery core welding tooling provided herein
Figure；
Fig. 5 is the structural representation of a kind of specific embodiment of briquetting in battery core welding tooling provided herein；
Fig. 6 is the sectional view of a kind of specific embodiment of briquetting in battery core welding tooling provided herein.
Reference：
10- Anchor plate kits；
11- welding holes；
12- bodies；
121- positioning holes；
13- briquettings；
131- compressed parts；
132- location divisions；
133- flanges；
14- mounting blocks；
20- bottom deck assemblies；
21- position limiting structures；
22- locating pieces；
30- lateral plate components；
31- side plates；
32- compressing structures；
33- retaining mechanisms；
331- compresses hook；
332- locking bails；
40- battery cores；
41- lugs；
50- poles.
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the application
Example, and be used to together with specification to explain the principle of the application.
Embodiment
The application is described in further detail below by specific embodiment and with reference to accompanying drawing.
As shown in figures 1 to 6, the embodiment of the present application provides a kind of battery core welding tooling, can be used for the lug of welding electric core
With pole, the battery core can be aluminum hull battery core.Battery core welding tooling includes the Anchor plate kit 10 and bottom deck assembly 20 being oppositely arranged,
Anchor plate kit 10 is used to compress pole 50 and the lug 41 of battery core 40 with bottom deck assembly 20, in fact, Anchor plate kit 10 and bottom
Formed between board component 20 and compress chamber, battery core 40 can be positioned over compression chamber.Specifically, Anchor plate kit 10 is provided with welding hole
11, welding hole 11 penetrates Anchor plate kit 10 along the direction formed between Anchor plate kit 10 and bottom deck assembly 20, and can be with pole
Ear 41 is relative, that is to say, that the insertion direction of welding hole 11 can be the direction relative with bottom deck assembly 20 of Anchor plate kit 10, such as
When Anchor plate kit 10 is provided with clamping plane, insertion direction can be vertical with the plane；Or insertion direction and Anchor plate kit 10
The direction relative with bottom deck assembly 20 is in a non-zero included angle, welding hole 11 is extended to lug 41, in order to pass through welding hole 11
Lug 41 and pole 50 are welded.
Above-mentioned frock in use, as shown in Figure 1, Figure 3, by battery core 40 be positioned over Anchor plate kit 10 and bottom deck assembly 20 it
Between, lug 41 is fitted with pole 50, usually, the thickness direction for making battery core 40 is Anchor plate kit 10 and bottom deck assembly 20
Relative direction, lug 41 and pole 50 are compressed with bottom deck assembly 20 by Anchor plate kit 10；Then, laser is remote by welding hole 11
It is incident from one end of lug 41, lug 41 and pole 50 are welded through welding hole 11, in welding process, welding produces
Even if welding particle splash, the side wall that can be also soldered hole 11 stops to return, and remains in welding hole 11 or lug
41 surface；After the completion of to be welded, whole frock and battery core 40 are overturn, and welding position is cleared up with hairbrush etc., will weldering
Connect particle to clean out, finally disassembling fixture again, take out battery core 40.
Obviously, in above process, because Anchor plate kit 10 is provided with welding hole 11, in soldering polar ear 41 and pole 50
When, the side wall that welding particle can also be soldered hole 11 even if splashing stops to return, and remains in the table of welding hole 11 or lug 41
Face, so as to avoid barrier film caused by welding particles splatter from piercing through or burn, to prevent the short circuit of battery core 40, ensure battery core 40
Security；And the frock, directly lug 41 and pole 50 can be compressed, welding is directly realized by the two, so as to eliminate
The piece that is flexible coupling of welding, welding sequence can be reduced, reduce production cost.
As in Figure 2-4, Anchor plate kit 10 includes body 12 and briquetting 13, and body 12 is relative with bottom deck assembly 20, body
12 are generally platy structure；Briquetting 13 can be copper briquetting, and it is connected to body 12, and Anchor plate kit 10 compresses pole by briquetting 13
Ear 41 and pole 50, i.e. briquetting 13 are relative with bottom deck assembly 20, briquetting 13 can with it is completely set up in body 12 close to bottom deck assembly
Body 12 is stretched into 20 side, or part, and battery core 40 is positioned on bottom deck assembly 20 with pole 50, and briquetting 13 is pressed on battery core
On 40 lug 41, so that lug 41 and pole 50 to be compressed jointly with bottom deck assembly 20.Now, welding hole 11 is arranged at briquetting 13
On, and briquetting 13 is penetrated, the direction that the insertion direction of welding hole 11 is formed between Anchor plate kit 10 and bottom deck assembly 20.Due to
Lug 41 is for battery core 40, small volume, by setting body 12 and briquetting 13, makes briquetting 13 dedicated for compressing pole
Ear 41, it is possible to increase the reliability of compression；And it is easy to the processing of Anchor plate kit 10.
It should be noted that briquetting 13 can be structure as a whole with body 12, i.e., Anchor plate kit 10 is integral type structure；
Can be Split type structure with briquetting 13 and body 12, the two links together after processing respectively.
Specifically, as seen in figs. 5-6, briquetting 13 includes compressed part 131, and the area of the cross section of compressed part 131 is along pressing plate
The direction that component 10 points to bottom deck assembly 20 is gradually reduced, wherein, above-mentioned cross section is perpendicular to Anchor plate kit 10 and bottom deck assembly
20 relative directions, refer specifically to the cross section of the outer wall of briquetting 13.Briquetting 13 compresses lug 41 and pole 50 by compressed part 131,
Now, welding hole 11 is arranged at compressed part 131, and because battery core 40 sets the space at lug 41 smaller, pole is compressed in briquetting 13
During ear 41, the housing easily with battery core 40 collides, by setting the compressed part 131 of cross section gradual change, in briquetting
During 13 to bottom deck assembly 20 by moving compression lug 41, the small end of compressed part 131 is introduced into above-mentioned space, and can use up can
It is avoided that and is collided with battery core 40, is easy to the operation of whole battery core welding tooling.Wherein, the outer wall of compressed part 131 can be
Bucking ladder, the frustum of a cone, or other polymorphic structures.Certainly, the area of the cross section of compressed part 131 points to bottom along Anchor plate kit 10
The direction of board component 20 can also be constant.
Alternatively, briquetting 13 also includes location division 132, and location division 132 is generally relative with compressed part 131 and interconnects,
Typically it is structure as a whole, the two extends to the direction where body 12, the direction where bottom deck assembly 20 respectively, it is contemplated that
, location division 132 is compared with compressed part 131 close to body 12；Welding hole 11 penetrates location division 132.Body 12 is provided with positioning hole
121, location division 132 and the location fit of positioning hole 121, i.e. location division 132 can be plugged in positioning hole 121, to ensure briquetting 13
The precision assembled with body 12, and then ensure positioning precision of the whole frock to lug 41 and pole 50, to improve welding precision.
When briquetting 13 and body 12 are Split type structure, for the convenience of the two connection, briquetting 13 also includes flange
133, flange 133 can be arranged at the junction of location division 132 and compressed part 131, and flange 133 can be set parallel to body 12
Put, briquetting 13 is connected to body 12 by flange 133.Wherein, the connected mode of flange 13 and body 12 can be welding, riveting
Or mode connects for screw.
When briquetting 13 and body 12 are Split type structure, briquetting 13 can be fixedly connected with body 12, movable can also be connected
Connect.Because the model for the battery core 40 for needing to weld is different, it respectively also can be different, or even the battery core 40 of same model to size, pole
The position that ear 41 is located at the thickness direction of battery core 40 is also different, in order to same set of frock can adapt to Multiple Type, size electricity
Core 40, briquetting 13 are movably connected on body 12 along the direction relative with bottom deck assembly 20 of Anchor plate kit 10, with adjust briquetting 13 with
The distance of bottom deck assembly 20, battery core 40 to be welded is adapted it to, is then locked by locking mechanism.Such as in briquetting 13 and body
12 when being mode connects for screw, before welding, can unclamp screw, according to the size of lug 41 to be welded and pole 50, first adjusts
The position of good briquetting 13, it is set to meet the size of lug 41 to be welded and pole 50 the distance between with bottom deck assembly 20, so
Lock-screw afterwards；It is subjected to again afterwards.Body 12 is provided with positioning hole 121, briquetting 13 is provided with location division 132
When, it can be slided by location division 132 along positioning hole 121, to realize the regulation of briquetting 13.Certainly, the regulation of briquetting 13 also may be used
To set special track, or it is adjusted by purely manual displacement.
Above-mentioned briquetting 13 can be provided only with one, can also be provided with it is multiple, such as two, three or more,
When being provided with multiple, multiple lugs 41 and pole 50 can be compressed simultaneously, reduce assembly process during welding, and then realize to more
The welding of individual battery core 40.
In addition, in order to ensure being mutually located for Anchor plate kit 10 and bottom deck assembly 20, and then ensure lug 41 and pole 50
Welding precision, body 12 is with that can set corresponding pin-and-hole on bottom deck assembly 20, by the pin through pin-and-hole to pressing plate
Component 10 positions with bottom deck assembly 20, wherein, the inwall of pin-and-hole can set copper sheathing, to improve the wearability of pin-and-hole, ensure pressure
The positioning precision of board component 10 and bottom deck assembly 20.
In the various embodiments described above, as shown in Figure 2 and Figure 3, bottom deck assembly 20 sets limited location towards the side of Anchor plate kit 10
Structure 21, position limiting structure 21 can be the projection being arranged on bottom deck assembly 20, and bottom deck assembly is positioned in battery core 40, pole 50
When 20, position limiting structure 21 can offset with pole 50, i.e., pole 50 is resisted against position limiting structure 21, and (top refers at the top of battery core 40
Be provided with the side of lug 41) with pole 50 against it is achieved thereby that pole 50, the positioning of battery core 40, and then ensureing pole 50
The precision welded with lug 41.
Position limiting structure 21 can be arranged at the middle part of bottom deck assembly 20, in order to distinguish in the opposite sides of position limiting structure 21
Battery core 40 and pole 50 are placed, to realize that welding of the same frock to more battery cores 40 positions, so as to improve welding efficiency.
In addition, being additionally provided with multiple locating pieces 22 on bottom deck assembly 20, locating piece 22 leans with battery core 40, i.e., battery core 40 can
Between being positioned over multiple locating pieces 22, so that each locating piece 22 leans with multiple faces of battery core 40 respectively.
Battery core welding tooling also includes being arranged at lateral plate component 30 between Anchor plate kit 10 and bottom deck assembly 20, as Fig. 1-
Shown in 3, lateral plate component 30 includes side plate 31, and side plate 31 is arranged at Anchor plate kit 10 (being body 12 when provided with body 12) and bottom
Between board component 20, for support baseboard component 20 and Anchor plate kit 10, to prevent bottom deck assembly 20 with Anchor plate kit 10 to electricity
The thrust of core 40 causes greatly battery core 40 to damage very much；In addition, side plate 31 can also with the bottom of battery core 40 (in battery core 40 with setting
The relative part in the part of lug 41) lean, to compress battery core 40 in the short transverse of battery core 40, prevent lug 41 and pole
Battery core 40 moves in the welding process of post 50, and then ensures welding quality.
If side plate 31 both plays a part of supporting Anchor plate kit 10 and bottom deck assembly 20, while the bottom phase with battery core 40 again
Against, then in the installation process of battery core 40, be not easy adjusting position, and side plate 31 directly with battery core 40 against will to the precision of frock
Ask higher.Therefore, when bottom deck assembly 20 also includes position limiting structure 21, lateral plate component 30 also includes compressing structure 32, compresses knot
Structure 32 can be connected to side plate 31, and compressing structure 32 is relative with position limiting structure 21, and the two is used for the short transverse pressure along battery core 40
Tight battery core 40.
Specifically, compressing structure 32 can be compact heap or other structures, and alternatively, compressing structure 32 includes spring stack
Plug, as shown in Fig. 2 side plate 31 is fixed in one end of spring-loaded plunger, the other end is free end, the side stretched to where battery core 40,
To be resisted against the bottom of battery core 40, i.e. compressing structure 32 compresses battery core 40 by spring-loaded plunger.Using this structure, pass through spring
The elastic telescopic of plunger, the size of different battery cores 40 is can adapt to, in order to the fixation of battery core 40.
Above-mentioned Anchor plate kit 10 is compressing lug 41 with that after pole 50, can be connected by screw, block with bottom deck assembly 20
The mode connect realizes locking, in order to weld.When battery core welding tooling includes lateral plate component 30, Anchor plate kit 10, bottom plate group
Part 20 can lock together with lateral plate component 30.Alternatively, lateral plate component 30 also includes the retaining mechanism 33 for being connected to side plate 31,
Anchor plate kit 10 is locked by retaining mechanism 33 and bottom deck assembly 20.Locking mechanism can be interface arrangment as Figure 1-3,
Now need to set mounting blocks 14 on Anchor plate kit 10, mounting blocks 14 can be arranged at one of body 12 away from bottom deck assembly 20
Side, retaining mechanism 33 include the compression hook 331 and locking bail 332 for being connected to side plate 31, and locking bail 32 can be around parallel to side plate
31 axis rotates, and after Anchor plate kit 10 and bottom deck assembly 20 compress lug 41 and pole 50, compresses hook 331 and compresses installation
Block 14, locking bail 332 rotate from Anchor plate kit 10 to the direction of bottom deck assembly 20, until with the clamping of bottom deck assembly 20, so as to real
The locking of existing Anchor plate kit 10 and bottom deck assembly 20.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
- A kind of 1. battery core welding tooling, it is characterised in that including the Anchor plate kit and bottom deck assembly being oppositely arranged, the pressing plate group Part is used to compress pole and the lug of battery core with the bottom deck assembly；The Anchor plate kit is provided with welding hole, the welding Hole penetrates the Anchor plate kit along the direction formed between the Anchor plate kit and the bottom deck assembly, and can be with the pole Ear is relative, in order to be welded by the welding hole to the lug and the pole.
- 2. battery core welding tooling according to claim 1, it is characterised in that the Anchor plate kit includes body and briquetting, The briquetting is connected to the body, and the Anchor plate kit compresses the lug and the pole by the briquetting；The weldering Connect hole to be arranged on the briquetting, and penetrate the briquetting.
- 3. battery core welding tooling according to claim 2, it is characterised in that the briquetting includes compressed part, the compression The direction that the area of the cross section in portion points to the bottom deck assembly along the Anchor plate kit is gradually reduced, the cross section perpendicular to The Anchor plate kit direction relative with the bottom deck assembly, the briquetting by the compressed part compress the lug with it is described Pole；The welding hole is arranged at the compressed part.
- 4. battery core welding tooling according to claim 3, it is characterised in that the briquetting also includes location division, the weldering Connect hole and penetrate the location division；The body is provided with positioning hole, the location division and the positioning hole location fit.
- 5. battery core welding tooling according to claim 2, it is characterised in that the briquetting along the Anchor plate kit with it is described The relative direction of bottom deck assembly is movably connected on the body.
- 6. battery core welding tooling according to claim 2, it is characterised in that the briquetting is provided with multiple.
- 7. battery core welding tooling according to claim 1, it is characterised in that the bottom deck assembly is towards the Anchor plate kit Side be provided with position limiting structure, the position limiting structure can offset with the pole.
- 8. according to the battery core welding tooling described in claim any one of 1-7, it is characterised in that also include being arranged at the pressing plate The lateral plate component of component and the bottom deck assembly, the lateral plate component include side plate, and the side plate is arranged at the Anchor plate kit Between the bottom deck assembly.
- 9. battery core welding tooling according to claim 8, it is characterised in that the bottom deck assembly also includes position limiting structure； The lateral plate component also includes compressing structure, and the compressing structure is relative with the position limiting structure, and the two is used for along the battery core Short transverse compress the battery core.
- 10. battery core welding tooling according to claim 9, it is characterised in that the compressing structure includes spring-loaded plunger, institute The side plate is fixed in the one end for stating spring-loaded plunger, and the compressing structure compresses the battery core by the spring-loaded plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720540039.1U CN206717300U (en) | 2017-05-16 | 2017-05-16 | Battery core welding tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720540039.1U CN206717300U (en) | 2017-05-16 | 2017-05-16 | Battery core welding tooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206717300U true CN206717300U (en) | 2017-12-08 |
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ID=60512821
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720540039.1U Active CN206717300U (en) | 2017-05-16 | 2017-05-16 | Battery core welding tooling |
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| CN (1) | CN206717300U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315262A (en) * | 2019-07-04 | 2019-10-11 | 宁波利维能储能系统有限公司 | A kind of rectangular cell module busbar connector clamping tool |
| CN110587160A (en) * | 2019-09-24 | 2019-12-20 | 盐城国投中科新能源科技有限公司 | Welding tool for battery module |
| CN111107962A (en) * | 2018-02-12 | 2020-05-05 | 株式会社Lg化学 | Spot welding fixture |
| CN111975233A (en) * | 2019-05-21 | 2020-11-24 | 湖南中车时代电动汽车股份有限公司 | Welding slag protection device and method |
| CN112496622A (en) * | 2020-11-05 | 2021-03-16 | 天津恒天新能源汽车研究院有限公司 | Flexible electric core welding tool |
| CN113118685A (en) * | 2021-03-05 | 2021-07-16 | 浙江南都电源动力股份有限公司 | Novel butterfly welding device |
| CN114310115A (en) * | 2022-01-14 | 2022-04-12 | 日铭电脑配件(上海)有限公司 | Welding jig and locking method |
| JP7541121B2 (en) | 2022-01-14 | 2024-08-27 | 日銘電脳配件（上海）有限公司 | Welding jig and clamping method |
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2017
- 2017-05-16 CN CN201720540039.1U patent/CN206717300U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111107962A (en) * | 2018-02-12 | 2020-05-05 | 株式会社Lg化学 | Spot welding fixture |
| US11383331B2 (en) | 2018-02-12 | 2022-07-12 | Lg Energy Solution, Ltd. | Jig for spot welding |
| CN111975233A (en) * | 2019-05-21 | 2020-11-24 | 湖南中车时代电动汽车股份有限公司 | Welding slag protection device and method |
| CN110315262A (en) * | 2019-07-04 | 2019-10-11 | 宁波利维能储能系统有限公司 | A kind of rectangular cell module busbar connector clamping tool |
| CN110587160A (en) * | 2019-09-24 | 2019-12-20 | 盐城国投中科新能源科技有限公司 | Welding tool for battery module |
| CN112496622A (en) * | 2020-11-05 | 2021-03-16 | 天津恒天新能源汽车研究院有限公司 | Flexible electric core welding tool |
| CN113118685A (en) * | 2021-03-05 | 2021-07-16 | 浙江南都电源动力股份有限公司 | Novel butterfly welding device |
| CN114310115A (en) * | 2022-01-14 | 2022-04-12 | 日铭电脑配件(上海)有限公司 | Welding jig and locking method |
| CN114310115B (en) * | 2022-01-14 | 2022-12-09 | 日铭电脑配件(上海)有限公司 | Welding jig and locking method |
| WO2023134118A1 (en) * | 2022-01-14 | 2023-07-20 | 日铭电脑配件(上海)有限公司 | Welding jig and locking method |
| JP7541121B2 (en) | 2022-01-14 | 2024-08-27 | 日銘電脳配件（上海）有限公司 | Welding jig and clamping method |
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