CN109277734A - Welding draws compression apparatus and method and string welding machine - Google Patents
Welding draws compression apparatus and method and string welding machine Download PDFInfo
- Publication number
- CN109277734A CN109277734A CN201811308247.4A CN201811308247A CN109277734A CN 109277734 A CN109277734 A CN 109277734A CN 201811308247 A CN201811308247 A CN 201811308247A CN 109277734 A CN109277734 A CN 109277734A
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- welding
- pressing
- compression apparatus
- traction
- cell piece
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The present invention provides welding traction compression apparatus and method and string welding machine, it includes guiding welding device, the first traction device, the second traction device, pipeline and welding positioning device that welding, which draws compression apparatus, second traction device is installed on rear side of the first traction device, placing battery plate on pipeline, guiding welding device are arranged between the first traction device and the second traction device.Welding is drawn in compressing method, and the first traction device draws welding to guiding welding device；Welding is drawn on cell piece by the second traction device；Welding and cell piece are pressed together by welding positioning device.String welding machine draws compression apparatus using welding, further includes battery piece charging device, welding feeding device, welder.The present invention can integrate raising welding operating efficiency and quality.
Description
Technical field
The present invention relates to the device and method that welding is drawn and is pressed on cell piece and use this kind of equipment and side
The string welding machine of method.
Background technique
String welding machine is one of the important equipment in solar panel production process, for single battery piece to be welded into
The battery strings of string.It needs to pull out welding before welding, and is pressed on cell piece in advance fixed, it is therefore desirable to which welding is led
The tight device and method of impulse.
Welding is first stretched as fixed length toward front generally by a clamping jaw by traditional welding processing mode, then cutter
It is cut into fixed length, by the guiding of guide plate, after clamping jaw goes to forward electric discharge pond piece position with fixed-length welding-band, waits robot
Film releasing, film releasing terminate rear clip-claw and unclamp again welding, and then clamping jaw, which returns to, draws welding position, and repetitive operation constitutes circulation.Traditional
This welding processing mode, it is each movement require one movement after the completion of could start, it is more time-consuming, production efficiency compared with
It is low, do not meet the demand for modernizing high beat production.Especially when handling close grid welding, welding is easily separated from position, thus
It causes welding to fail, influences product quality.
So welding traction is pressed on cell piece with how realizing high efficient and reliable, to improve the entire production line production
Efficiency objectively reduces cost, is industry urgent problem.
Summary of the invention
A primary object of the present invention is to overcome at least one defect of the above-mentioned prior art, and providing one kind can be high
The welding that welding traction is pressed on cell piece is reliably drawn compression apparatus and method and uses this kind of equipment and side by effect
The string welding machine of method.
For achieving the above object, the present invention adopts the following technical scheme:
According to an aspect of the invention, there is provided a kind of welding draws compression apparatus, the welding draws compression apparatus
Including the first traction device, the second traction device, pipeline and welding positioning device, second traction device installation described the
On rear side of one traction device, placing battery plate on the pipeline, first traction device is for drawing welding to pre-determined bit
Set place, second traction device is used to draw the welding of the pre-position last to being placed on the pipeline
On one cell piece, the welding positioning device be used for by the pipeline welding and cell piece be pressed together.
According to an embodiment of the present invention, the welding traction compression apparatus further includes guiding welding device；It is described to lead
To welding device, the pre-position between first traction device and second traction device is set.
According to an embodiment of the present invention, the welding traction compression apparatus further includes guide plate, the guide plate peace
On the mobile device, the mobile device drives the guide plate elevating movement and/or transverse motion to dress.
According to an embodiment of the present invention, the groove of at least two guiding weldings is provided on the guide plate.
According to an embodiment of the present invention, first traction device includes first movement mechanism, the first movement
Mechanism drives the first traction device lifting and/or transverse motion.
According to an embodiment of the present invention, second traction device includes the second mobile mechanism, and described second is mobile
Mechanism drives the second traction mechanism lifting and/or transverse motion.
According to an embodiment of the present invention, the welding positioning device is independently arranged, and the welding positioning device packet
Compressing structure is included, welding traction is laid in place afterwards by welding and cell piece by the compressing structure in second traction device
It is pressed against.
According to an embodiment of the present invention, the compressing structure includes net pressing plate, is equipped in the net pressing plate multiple rows of
Pressing group all has pressing in multiple rows of pressing group, is arranged with spring on the every pressing, and up and down the two of the spring
End abuts against the end bosses of the net pressing plate and the pressing respectively.
According to an embodiment of the present invention, the compressing structure includes counterweight set and pressing, and the counterweight set is hollow
One end of column structure, the pressing is inserted into from one end that the counterweight covers and relatively fixed, the other end overhanging of the pressing
It is outer in counterweight set.
According to an embodiment of the present invention, the compressing structure includes support plate, is mounted in the support plate extremely
A few support bar and at least one pressing being mounted on the support bar；The pressing includes sleeve, indentor point and spring,
The upper end of the sleeve is fixed on the support bar, and kidney slot, the indentor point are offered on the lower end of the sleeve
Upper end is provided with pin, and the pin passes through the kidney slot, and the spring is mounted in the sleeve.
According to an embodiment of the present invention, the compressing structure includes silk screen and the frame for fixing the silk screen,
The silk screen is used to compress welding and cell piece.
According to an embodiment of the present invention, pressing is provided on the silk screen, the silk screen will by the pressing
Welding and cell piece compress.
According to an embodiment of the present invention, the welding positioning device includes pressing mounting bar, band spring, at least one
A spring and at least one pressing；The spring and the pressing correspond；The pressing includes indentor point and convex around
The upper end risen；Pressing installation through-hole is provided on the pressing mounting bar；The pressing is pacified by the pressing installation through-hole
On the pressing mounting bar, the indentor point exposes from the lower section of the pressing mounting bar；The band spring is fixed on
Above the pressing mounting bar；The spring is contained in the pressing installation through-hole, and one end of the spring is pressed on described
The upper end of pressing, the other end of the spring press against on the band spring.
According to an embodiment of the present invention, the welding positioning device includes press holder and transfer device, the shifting
Send device for transferring the press holder and cell piece；The press holder includes pressure holding frame, is equipped with pressure in the pressure holding frame
Silk.
For achieving the above object, the present invention also adopts the following technical scheme that
According to another aspect of the present invention, a kind of welding traction compressing method is provided, using as above any described
Welding traction compression apparatus, and the following steps are included:
First traction device draws welding to the guiding welding device；
Welding at the guiding welding device is drawn to the battery of the pipeline conveying by second traction device
On piece；
The welding positioning device by the pipeline welding and cell piece be pressed together.
According to a further aspect of the invention, a kind of string welding machine is additionally provided, the string welding machine uses as above any described
Welding draw compression apparatus, the string welding machine further includes battery piece charging device, welding feeding device, welder；It is described
Feeding device is used to provide cell piece to the pipeline, and the feeding device is used to provide to welding traction compression apparatus
Cell piece and welding are stacked together simultaneously by welding, the feeding device and welding traction compression apparatus according to predetermined order
It compresses, the pipeline is for the cell piece being stacked together and welding to be transported at the welder, the welding dress
It sets the cell piece that will be stacked together and welding is welded into battery strings.
As shown from the above technical solution, welding of the invention draws the advantages of compression apparatus and method and good effect exists
In:
In the present invention, traction transfer is carried out by the first traction device of setting and the second traction device, is made in conventional processes
It stretches welding and is cut into the process of fixed-length welding-band and send independently of fixed-length welding-band to putting cell piece position and wait robot
The process of film releasing, to make continuous process links in conventional processes disconnect, and the process before and after forming fixed-length welding-band
Intersect behind place, so that timing be made to be superimposed, to reduce the welding processing time, improves working efficiency.The present invention also makes
Welding is compressed with welding positioning device, welding position is facilitated to fix, welding accuracy rate is improved, improves yield rate and production efficiency.
The present invention can integrate raising welding operating efficiency and quality, be suitable for modernization fast pace Production line, there is extraordinary market
Prospect and application value.
Detailed description of the invention
Fig. 1 is that welding of the present invention draws one schematic view of the front view of traction element embodiment in compression apparatus.
Fig. 2 is that welding of the present invention draws one overlooking structure diagram of traction element embodiment in compression apparatus.
Fig. 3 is the working state schematic representation that welding of the present invention draws pressing section embodiment two in compression apparatus.
Fig. 4 is the main view that welding of the present invention draws pressing section embodiment two in compression apparatus.
Fig. 5 is the structural schematic diagram that welding of the present invention draws pressing section embodiment three in compression apparatus；
Fig. 6 is the pressing structural schematic diagram that welding of the present invention draws pressing section embodiment three in compression apparatus；
Fig. 7 is the structural schematic diagram that welding of the present invention draws pressing section example IV in compression apparatus；
Fig. 8 is the pressing structural schematic diagram that welding of the present invention draws pressing section example IV in compression apparatus；
The pressing structural schematic diagram of pressing section example IV in Fig. 9 welding traction compression apparatus of the present invention.
Figure 10 is the structural schematic diagram that welding of the present invention draws pressing section embodiment five in compression apparatus；
Figure 11 is the partial enlargement structural representation that welding of the present invention draws pressing section embodiment five in compression apparatus；
Figure 12 is the partial enlargement structural representation that welding of the present invention draws pressing section embodiment five in compression apparatus；
Figure 13 is the overlooking structure diagram that welding of the present invention draws pressing section embodiment five in compression apparatus.
Figure 14 is the structural schematic diagram that welding of the present invention draws pressing section embodiment six in compression apparatus；
Figure 15 is the schematic diagram that welding of the present invention draws the pressing of pressing section embodiment six in compression apparatus；
Figure 16 is the schematic diagram that welding of the present invention draws the pressing mounting bar of pressing section embodiment six in compression apparatus；
Figure 17 is the schematic diagram that welding of the present invention draws the band spring of pressing section embodiment six in compression apparatus；
Figure 18 is the schematic diagram that welding of the present invention draws the pressing of pressing section embodiment seven in compression apparatus；
Figure 19 is the schematic diagram that welding of the present invention draws the postive stop baffle of pressing section embodiment seven in compression apparatus；
Figure 20 is the structural schematic diagram that welding of the present invention draws pressing section embodiment seven in compression apparatus；
Figure 21 is the schematic diagram that welding of the present invention draws another pressing of pressing section embodiment seven in compression apparatus.
Figure 22 is the overall structure diagram that welding of the present invention draws pressing section embodiment eight in compression apparatus；
Figure 23 is the structure intention that welding of the present invention draws pressing section embodiment eight in compression apparatus.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Identical attached drawing in figure
Label indicates same or similar structure, thus the detailed description that will omit them.
It is described below, is carried out referring to attached drawing, the attached drawing forms of the invention one to difference of the invention is exemplary
Part, and different exemplary structures, system and the step that many aspects of the invention can be achieved wherein are shown by way of example
Suddenly.It should be understood that other specified schemes of component, structure, exemplary means, system and step can be used, and can be not inclined
Structural and functional modification is carried out in the case where from the scope of the invention.Although moreover, in this specification can be used term " top ",
" bottom ", " front ", " rear portion ", " side " etc. describe different example features and element of the invention, but these terms
With in this article merely for convenient, for example, with reference to the accompanying drawings described in exemplary direction.Any content in this specification is not
The specific three dimensional direction for being interpreted as Structure of need is just fallen within the scope of the present invention.
Embodiment one
Fig. 1 is that welding of the present invention draws one schematic view of the front view of traction element embodiment in compression apparatus.Fig. 2 is this
Invention welding draws one overlooking structure diagram of traction element embodiment in compression apparatus.As depicted in figs. 1 and 2, welding is drawn
Traction element includes the first traction device 101 and the second traction device 102 in compression apparatus, and the second traction device 102 is mounted on
First traction device, 101 rear side.
It is equipped with guiding welding device 12 in the embodiment, between the first traction device 101 and the second traction device 102, leads
It include guide plate 121 and guiding movement mechanism 122 to welding device 12, guide plate is provided at least two guiding on 121 surface
Slot 1211.
In the embodiment, the first traction device 101 includes first movement mechanism 1011, pressure strip welding mechanism 104, wherein pressure
Strip welding mechanism 104 is able to achieve compression welding, and first movement mechanism 1011 is able to achieve pressure strip welding mechanism 104 along 21 front and back of guide rail
And elevating movement, it is conveyed for welding folded by strip welding mechanism 104 will to be pressed to be pulled to setting position, or by pressure strip welding mechanism 104
To clamping welding position.
Second traction device 102 includes the second mobile mechanism 1021, clip claw mechanism 105, and wherein clip claw mechanism 105 can be real
Now clamping welding, the second mobile mechanism 1021 is able to achieve clip claw mechanism 105 along 21 front and back of guide rail and elevating movement, for realizing
Clip claw mechanism 105 is delivered at pressure strip welding mechanism and welding folded by clip claw mechanism 105 is delivered to setting position.
The entire course of work for drawing welding device is as follows: firstly, the first traction device 101 acts, clamping welding, and compress
Welding, then by welding roping to setting position；At this point, cutter 103 cuts off welding, make to form fixed-length welding-band；Then, second
Traction device 102 acts, and clamps fixed-length welding-band, and clamp welding, welding is then delivered to setting position, in the second traction dress
It sets in 102 action process, guide plate 12 realizes movement under the action of pushing cylinder, and guide plate 121 is moved for being oriented to welding position
Set, while the first traction device 101 acts, and moves to next welding position to be handled, and realize the next root bead band of clamping, and by its
It is delivered to setting position.
Explanation is unfolded with regard to each specific embodiment of pressing section again below.
Embodiment two
As shown in Figure 3 to Figure 4, cell piece 701, welding 702, pipeline 703, net pressing plate 704, pressing are shown in figure
705, spring 706 and heating device 707.In the embodiment, pressing 705 is the setting of multiple rows of array, is installed in net pressing plate 704
On, every row pressure needle 705 forms a pressing group, and each pressing group and every root bead band 702 correspond, to guarantee every root bead band
There are the same number of stress point of pressing 705 having with every row pressure needle group points, the pressing that every row pressure needle group includes on 702
705 quantity can be depending on specific production requirement, such as can be seven, eight, nine, ten, 11,12 or other suitable numbers.Separately
Outside, can on every pressing 705 sheathed spring 706, formed elastic pressure, to guarantee that welding 702 can be pressed in battery always
On piece 701.
In the embodiment, cell piece 701 is placed on pipeline 703, and the two sides of cell piece 701 is all connect with welding 702.
In practical applications, net pressing plate 704 can be transported to using manual or automaticization equipment or using the carrying mechanism of preceding working procedure
On cell piece 701, to be subjected to.Furthermore it is also possible to heating device 707 be installed in the top of net pressing plate 704, with butt welding
Position is connect to be heated.Manipulator can also be set, for grabbing net pressing plate 704 and being placed on cell piece 701, it can also be used to take
Lower net pressing plate 704.
In the embodiment, welding hole is offered in net pressing plate 704, welding 702 is between adjacent pressing 705, and at this
Expose in welding hole, in order to be welded on heating device 707 on cell piece 701 welding 702 by welding hole.
Specific action process of the invention is as follows:
As shown in Fig. 2, pipeline 703 drives cell piece 701 mobile, net pressing plate 704 is placed on a cell piece 701,
Welding 702 is pressed on cell piece 701 by multiple pressings 705 in net pressing plate 704, is moved when cell piece 701 is synchronous with net pressing plate 4
When moving the lower section of heating device 707, pipeline 703 stops movement, and heating device 707 passes through the welding hole in net pressing plate 704
Welding 702 is welded on cell piece 701, after welding 702 completes welding, pipeline 703 continues to move to the battery after welding
Piece is delivered to discharge station, and net pressing plate 704 is moved to the spare space before welding.In addition, after the completion or remove net pressing plate
While 704, next net pressing plate 704 is moved on next cell piece again, then carry out the operation of a new round, so not
It is disconnected to repeat to weld.
In the embodiment, welding can be pressed on cell piece using net pressing plate self weight before welding also can use spring
Elastic force is pressed in welding on cell piece, this mechanism can make welding be bonded cell piece always, will not generate rosin joint, welding effect
It is best.The present invention also can solve the problem of transmission of high fever energy by the design of net pressing plate, and prevent cell piece out-of-flatness, so that weldering
It is more preferable to connect effect.
Embodiment three
It as shown in Figure 5 and Figure 6, include support plate 70010, at least one be mounted in support plate 70010 in the embodiment
A at least one pressing 70030 support bar 70020 and be mounted on support bar 70020.In conjunction with reference Fig. 6, pressing 70030 is wrapped
Sleeve 70031, indentor point 70032 and spring 70033 are included, the upper end of sleeve 70031 is fixed on support bar 70020, sleeve
Kidney slot 70034 is offered on 70031 lower end, 70032 upper end of indentor point is provided with pin 70035, and pin 70035 is worn
Kidney slot 70034 is crossed, spring 70033 is mounted in sleeve 70031.
Optionally, the pin 70035 on indentor point 70032 can be integrally formed when indentor point 70032 manufactures,
Through-hole can be set on indentor point 70032, and pin 70035 passes through through-hole and is fixed on indentor point 70032.Optionally, spring
70033 one end is pressed on the top of indentor point 70032, and the other end of spring 70033 presses against the top of sleeve 70031.?
In practical application, the top of sleeve 70031 is had and can be connected by bolt between sleeve 70031 and support bar 70020 with top cover
It connects.In a kind of possible realization, there is external screw thread in the upper end of sleeve 70031, and matched interior spiral shell is provided on support bar 70020
Line, sleeve 70031 can be fixed on support bar 70020 by screw thread.
Optionally, one end of spring 70033 is pressed on the top of indentor point 70032, and the other end of spring 70033 presses against
On support bar 70020.In practical applications, sleeve 70031 can be the tubular of both ends perforation, and sleeve 70031 is fixed on support
After on item 70020, what bullet 70033 pressed is support bar 70020.Optionally, there are two being opened up on the lower end of sleeve 70031
Symmetrical kidney slot 70034, the both ends of pin 70035 are each passed through two kidney slots 34.In practical applications, in order to make pin
70035 can stick into kidney slot 70034, and the length of pin 70035 needs the interior electrical path length greater than sleeve 70031.In reality
In, a kidney slot 70034 can also be only opened up on the lower end of sleeve 70031, pin 70035 passes through kidney slot
70034。
Example IV
In conjunction with reference Fig. 7-Fig. 9, support plate 70010 is the rectangular box of central region hollow out, and rectangular box includes mutual
Vertical the first opposite side and the second opposite side offers the support bar mounting hole 70011 for being used as installing support bar on the first opposite side,
The loophole 70012 of infrared light for welding is offered on second opposite side.The both ends of support bar 70020 are installed in
It is offered between two neighboring pressing 70030 on corresponding support bar mounting hole 70011, on support bar 70020 for welding
The loophole 70012 of infrared light.In practical applications, the welding of welding is led to using the mode of infrared welding
It crosses infrared light and melts welding complete solder, in order to enable infrared light to travel on welding, support plate 70010 and support bar
Need to open up light hole 70012 on 70020 to pass through infrared light.
Optionally, the quantity for the pressing 70030 installed on each support bar 70020 is greater than or equal to the main gate line of cell piece
Quantity.Optionally, when the quantity of the pressing 70030 on each support bar 70020 is greater than 1, on each support bar 70020
The position of i-th of pressing 70030 is point-blank, wherein i is positive integer.In practical applications, a support plate 70010
The quantity of the support bar 70020 of upper installation determines the quantity of pressing 70030 for fixing on a welding.Support bar 70020
Quantity need to comprehensively consider fixed effect and translucent effect, the excessively few fixation that may then influence to welding of quantity, quantity is excessive
The transmission of infrared light may then be influenced.Illustratively, what is provided in the attached drawing of the present embodiment is that the quantity of support bar 70020 is 6
It is a.In order to enable the preferably fixed welding of pressing 70030, the shape of indentor point 70032 can be made into plate.
In conjunction with reference Fig. 8, in the case where a kind of possible, indentor point 70032 is plate body, the bottom of indentor point 70032
For rectangle plane.In conjunction with reference Fig. 9, in the case where alternatively possible, indentor point 70032 is plate body, indentor point 70032
Bottom is the curved surface being recessed upwards.The bottom of indentor point 70032 is fabricated to the curved surface being recessed upwards, indentor point can be made
70032 block welding, so that the position of welding is fixed, are not susceptible to deviate.Optionally, when indentor point 70032 is plate
When shape body, the length direction of the bottom of indentor point 70032 and the extending direction of welding are vertical.Optionally, when indentor point 70032
The length of bottom is greater than the width or diameter of welding.The diameter of the corresponding welding being planar as of the width of welding, welding is corresponding
Be cylindrical welding.
In conclusion embodiment three and example IV, by utilizing the pressing on welding pressing device when welding welding
Welding is pressed in the main gate line of cell piece, since each welding rod is compressed by least one pressing, when need to compress
When welding quantity is more, each welding has corresponding pressing to compress, so that each welding can be close to electricity in welding
The main gate line of pond piece, solving the problems, such as that welding is not compacted leads to rosin joint, has achieved the effect that avoid rosin joint.
In addition, being made by the way that spring is arranged between indentor point and sleeve or is arranged between indentor point and support bar
Pressing is obtained when compressing welding, can adaptively adjust the position of pressing, is avoided because of the too long crushing cell piece of pressing and pressure
Needle is too short to fail the problem of compressing welding.
In addition, by opening up two symmetrical kidney slots on the lower end of sleeve, and the both ends of pin are each passed through
Two kidney slots, so that indentor point when compressing welding, can avoid pressing along the extending direction compressed spring of kidney slot
Head is rotated when compressing the problem of causing welding to deviate main grid line position.
In addition, by opening up the support bar mounting hole for being used as installing support bar on the first opposite side of support plate, it can be with
Support bar is fixed on the supporting plate, it, can be with by opening up the loophole of infrared light for welding on the second opposite side
Travel to infrared light on the welding of pressing compression, butt welding band is welded.
In addition, enabling support bar to be fixed by the way that the both ends of support bar are mounted on corresponding support bar mounting hole
On the supporting plate, by offering loophole between two neighboring pressing, the infrared light of welding can be made to travel to pressing
On the welding of compression, butt welding band is welded.
In addition, by by the quantity for the pressing installed on each support bar be set greater than or equal to cell piece main gate line
Quantity, can make each support bar that can compress whole welding rod corresponding with cell piece main gate line, by pressing number
When measuring more, point-blank by the pressing setting on each support bar at same position, so that identical on each support bar
Pressing at position can be directed at the same welding rod.In addition, by the curved surface for being set as being recessed upwards by the bottom of indentor point,
Enable indentor point to be bonded welding rod, and the position of fixed welding rod, avoids the position of welding rod offset main gate line.
Embodiment five
As shown in Figure 10, Figure 11, Figure 12 and Figure 13, which specifically includes that frame 70-1, silk screen 70-2, pressing
70-3, connector 70-4 and silk screen tightness adjustment structure 70-5, wherein one end of silk screen 70-2 is fixed on frame 70-1, silk screen
The other end of 70-2 is fixed on frame 70-1 by silk screen tightness adjustment structure 70-5.
In another embodiment, the both ends of silk screen 70-2 pass through silk screen tightness adjustment structure 70-5 and are fixed on frame
On 70-1, alternatively, the both ends silk screen 70-2 are not provided with silk screen tightness adjustment structure 70-5 and are directly anchored on frame 70-1, need
Before fixed by silk screen it is elastic adjust after it is fixed.
Silk screen tightness adjustment structure 70-5 is specifically included: silk screen fixed block 70-51, it is solid that silk screen 70-2 is fixed at silk screen
Determine on block 70-51, sliding slot is provided on silk screen fixed block 70-51, the sliding rail 70- matched with sliding slot is provided on frame 70-1
53, silk screen fixed block 70-51 is slidably mounted on frame 70-1, and the side of silk screen fixed block 70-51 has abutted against adjusting spiral shell
Bolt 70-52, the axial direction for adjusting bolt 70-52 are provided with through-hole, are provided on frame 70-1 and match with adjusting bolt 70-52
Threaded hole, silk screen 70-2 with the fixed fast 70-51 of silk screen it is fixed after, the movable end of silk screen 70-2 sequentially passes through adjusting bolt
The threaded hole on through-hole, frame 70-1 on 70-52 is until the other side with frame 70-1 is mutually fixed.Bolt is adjusted to act against
The side of silk screen fixed block 51 is slided by screwing adjusting bolt 52 to control silk screen fixed block 70-51 on frame 1, thus
The tension of silk screen 70-2 is adjusted, and then controls the pressure of pressing 70-3 pressure.
Through-hole is provided on pressing 70-3, silk screen 2 passes through the through-hole, and pressing 3 is set on silk screen 2, on same silk screen 2
Several pressings are placed, several pressings 2 are distributed in 2 extending direction interval set distance of silk screen.It can be same by multiple pressings 3
When pressing multiple groups welding and cell piece, improve working efficiency.
The connector 70-4 being provided on frame 1 above silk screen 70-2, connector 70-4 can be connecting rod or
Connecting plate etc. is provided with pressing location hole 70-41 on connector 70-4, and pressing location hole 70-41 is specifically tied according to pressing 70-3
It is through-hole that the factors such as the thickness of structure and connector 70-4, which can choose, is also possible to blind hole, in the present embodiment pressing location hole
70-41 is specially through-hole.
The top pressing 70-3 is the guide post structure 70-31, guide post structure 70- matched with pressing location hole 70-41
31 can move up and down along the axial direction of pressing location hole 70-41, and the lower end of guide post structure 70-31 is provided with the platform of radially protruding
Rank confined planes 70-32 gos deep into the extreme position of pressing location hole 70-41 for limiting guide post structure 70-31, pressing 70-3's
Bottom end is the pressure end 70-33 contacted with to-be-welded pieces, and pressure end 70-33 can be set to smooth plane, can also applied
Inverted " V " type notch is set on pressure side 70-33 or has arc notch.In the present embodiment, the pressure end 70-33 of pressing 70-3
It is streak-like planar, when actual production, the pressure end 70-33 and welding of pressing 70-3 is cross-shaped contact, for difference
The welding of form, such as cylindrical welding, the inverted " V " type notch and arc notch of pressure end 33 are capable of the position of regular welding, are prevented
Welding shifts when only welding.And the flat shape of the pressure end 70-33 of pressing 70-3 can be the strip such as this implementation,
It is also possible to rounded face etc., the notch pattern and flat shape of pressure end 70-33 is numerous, can not be exhaustive in this programme but all belongs to
It is limited in range in this programme.
In another embodiment, silk screen 70-2 is replaced by steel bar, and steel bar both ends are connect by spring part with frame elastic,
Pressing 70-3 is arranged on steel bar.
A kind of cell piece string welding machine with above-mentioned silk screen pressing device, cell piece string welding machine include: welding feed portion
With cell piece feed portion, weld part, the welding that welding feed portion provides is pressed on cell piece using silk screen pressing device and is fed
In the cell piece main gate line that portion provides, welding is welded in the main gate line of cell piece using weld part, to form battery strings.
Embodiment six
Figure 14 is the schematic diagram of the present embodiment, including pressing mounting bar 700-10, band spring 700-20, at least one bullet
Spring 700-30 and at least one pressing 700-40, spring 700-30 and pressing 700-40 are corresponded.Pressing mounting bar 700-10
On be provided with pressing installation through-hole 700-11.
In conjunction with reference Figure 15, pressing 700-40 includes indentor point 700-41 and upper end 700-42 raised around.Such as
Shown in Figure 14, pressing 700-40 is mounted on pressing mounting bar 700-10 by pressing installation through-hole 700-11, indentor point 700-
41 expose from the lower section of pressing mounting bar 700-10.Pressing 700-40 is put into above pressing installation through-hole 700-11, is passed through
Pressing installation through-hole 700-11 exposes indentor point 700-41.Band spring 700-20 is fixed on above pressing mounting bar 700-10,
Spring 700-30 is contained in pressing installation through-hole 700-11, and one end of spring 700-30 is pressed on the upper end of pressing 700-40
Portion 700-42, the other end of spring 700-30 press against on band spring 700-20.
Optionally, during the installation process, spring 700-30 is mounted on pressing installation through-hole after pressing 700-40 installation
In 700-11, all pressing 700-40s and spring 700-30 of the band spring 700-20 on pressing mounting bar 700-10 are whole
It is fixed on pressing mounting bar 700-10 after the installation is completed.Spring 700-30, spring 700-30 are installed the top of pressing 700-40
Elastic force can be provided to pressing 700-40, when the indentor point 700-41 of pressing 700-40 compresses welding, pressing can be passed through
700-40 realizes the independent compression of each welding.
Optionally, in conjunction with reference Figure 16, on pressing mounting bar 700-10 between two neighboring pressing installation through-hole 700-11
The light hole 700-12 for offering infrared light for welding is offered on band spring 700-20 in conjunction with reference Figure 17
Light hole 700-21 corresponding with pressing mounting bar 700-10.The correspondence of band spring 700-20 and pressing mounting bar 700-10
Light hole is respectively provided on position, the infrared ray that can be issued by welding lamp box reduces shading, improves the quality of welding.It is optional
, in conjunction with reference Figure 16, pressing installation through-hole 700-11 includes upper and lower two parts, the internal diameter and pressing 700-40 of upper part
Upper end 700-42 it is corresponding, the internal diameter of lower part is corresponding with indentor point 700-41.Due to the upper end of pressing 700-40
42 be raised around, that is to say, that the diameter of the upper end 42 of pressing 40 is greater than the diameter of indentor point 41, therefore, pressing
When being installed in pressing installation through-hole 700-11, the upper end 700-42 of pressing 700-40 can not be installed 700-40 by pressing
The upper end 700-42 of pressing 700-40 can be stuck in pressing installation through-hole 700-11 by the lower part of through-hole 700-11
Portion, to prevent pressing 700-40 from falling out of pressing installation through-hole 700-11；In addition, since spring 700-30 is pressed on pressing
The upper end 700-42 of 700-40, therefore the upper end 700-42 of pressing 700-40 can also be used to transmit the bullet of spring 700-30
Power.
During welding of battery film, welding is transported to the lower section of welder, and pressing mounting bar 700-10 drives pressing
700-40 decline, after welding is pushed down in the bottom of indentor point 700-41, can generate a upward power, pressing to pressing 700-40
The upper end 700-42 of 700-40 squeezes spring, and pressing 700-40 bounces back into pressing installation through-hole 700-11, can to avoid because
The mismachining tolerance of pressing causes the problem of cell piece fragment, and band spring 700-20 is pressed down against spring 700-30, spring
700-30 applies downward power to pressing 700-40, pressing 700-40 can be tightly pressed against on welding.
Optionally, in conjunction with reference Figure 16, the first screw hole 700-13 is offered on pressing mounting bar 700-10, in conjunction with reference to figure
The first corresponding position screw hole 700-13 is provided with first through hole 700-22, band spring on 17, band spring 700-20
700-20 is fixed on pressing mounting bar 700-10 by the synergistic effect of screw and the first screw hole 700-13.In installation spring pressure
When 700-20, after band spring 700-20 is aligned with pressing mounting bar 700-10, first through hole 700- is passed through by screw
In 20 the first screw hole of precession 700-13.
Optionally, in practical applications, the fixed form of band spring 700-20 can also be using the modes such as buckle, this reality
Example is applied to this without limiting.
Embodiment seven
In conjunction with reference Figure 18-Figure 21, the raised position of the upper end 700-42 of pressing 700-40 is provided with cutting planes
700-43, in conjunction with reference Figure 19, welding pressing device further includes postive stop baffle 700-50, in conjunction with reference Figure 20, postive stop baffle
700-50 is fixed on the side of pressing mounting bar 700-10, and each cutting planes after each pressing installation are towards postive stop baffle
700-50。
Optionally, during the installation process, postive stop baffle 700-50 is equal in the cutting planes 700-43 of each pressing 700-40
It is fixed on the side of pressing mounting bar 700-10 after towards the same side of pressing mounting bar 700-10, the limiting block after fixing
Plate 700-50 is close to cutting planes 700-43.
Due to that may rotate when pressing 700-40 stretches in pressing installation through-hole 700-11, so as to cause pressing
The welding rod offset main grid line position that 700-40 is pushed down causes rosin joint, therefore, passes through the upper end 700-42's in pressing 700-40
Raised position is cut into plane, and is adjacent to cutting planes 700-43 by postive stop baffle 700-50, so that pressing
700-40 avoids rotating when flexible.Optionally, in practical applications, the upper end 700-42 of pressing 700-40 can also be with
It is made into the shape that section is polygon, position restriction is carried out by a line that postive stop baffle 700-50 is adjacent to polygon.
In conjunction with reference Figure 18 and Figure 21, the side of pressing mounting bar offers the second screw hole 700-14, postive stop baffle 700-
Be provided with the second through-hole 700-51 on 50 with the second corresponding position screw hole 700-14, postive stop baffle 700-50 by screw with
The synergistic effect of second screw hole 700-14 is fixed on pressing mounting bar 700-10.
When installing postive stop baffle 700-50, postive stop baffle 700-50 can be aligned with pressing mounting bar 700-10, be led to
Screw is crossed in second through-hole 700-51 the second screw hole of precession 700-14.Optionally, in practical applications, postive stop baffle 700-
50 fixed form can also be using modes such as buckles, and the present embodiment is to this without limiting.
It optionally, is cylindrical body in conjunction with reference Figure 19, indentor point 700-41.Optionally, the bottom surface of indentor point 700-41 is
Circular flat or the curved surface being recessed upwards.In practical applications, the bottom surface of indentor point 700-41 can also be the V-type being recessed upwards
Face.In practical applications, the diameter in the section of indentor point 700-41 is greater than the diameter or width of welding.By the bottom surface of indentor point 41
It is made into the curved surface being recessed upwards or V-type face, indentor point 700-41 can be made to block welding, so that the position of welding is solid
It is fixed, it is not susceptible to deviate.
It optionally, is plate body in conjunction with reference Figure 21, indentor point 700-41.Optionally, the bottom surface of indentor point 700-41 is
Rectangle plane or the curved surface being recessed upwards.In conjunction with reference Figure 21, the bottom surface of indentor point 700-41 can also be the V-type being recessed upwards
Face.Indentor point 700-41 is made into plate body, can not only reduce the weight of indentor point, indentor point can also be reduced and block welding
Area realize better welding quality to increase the illuminating area on welding.In practical applications, pressing mounting bar
The quantity of the pressing 700-40 installed on 700-10 is greater than or equal to the quantity of the main gate line of cell piece.
In practical applications, welding pressing device further includes the rectangular supporting board of central region hollow out, in a support plate
Multiple pressing mounting bar 700-10 can be installed side by side, when the quantity of the pressing 700-40 on pressing mounting bar 700-10 is greater than 1
When, point-blank, i is positive integer for the position of each upper i-th of pressing 700-40 of pressing mounting bar 700-10.
In practical applications, the quantity of the pressing mounting bar 700-10 installed in a support plate needs to comprehensively consider fixation
Effect and translucent effect, the excessively few fixation that may then influence to welding of quantity, quantity excessively may then influence the transmission of infrared light.
In conclusion embodiment six and seven, by the way that when welding welding, welding to be pressed in the main grid of cell piece using pressing
On line, since each welding rod is compressed by least one pressing, when the welding quantity for needing to compress is more, each welding
There is corresponding pressing to compress, so that each welding can solve welding close to the main gate line of cell piece in welding
It is not compacted the problem of leading to rosin joint, has achieved the effect that avoid rosin joint.By by spring setting pressing and band spring it
Between so that pressing when compressing welding, can adaptively adjust the position of pressing, avoid because the too long crushing cell piece of pressing with
And pressing it is too short fail compress welding the problem of.In addition, by the way that light hole is arranged between two neighboring pressing installation through-hole, it can
So that the infrared light of welding travels on the welding of pressing compression, butt welding band is welded.Furthermore due to the upper end of pressing
Outwardly convex, pressing installation through-hole include two parts, and the internal diameter of upper part and the upper end of pressing are corresponding, lower part it is interior
Diameter size is corresponding with indentor point, therefore when pressing is installed by pressing installation through-hole, the upper end of pressing can be stuck in pressure
In needle installation through-hole, to prevent pressing from falling out of pressing installation through-hole.
In addition, cutting planes are arranged by the raised position in the upper end of pressing, it is close to pressing using postive stop baffle
Cutting planes block pressing, can prevent pressing from rotating, and avoid pressing when compressing welding since rotation causes welding to deviate
The problem of main grid line position.By the curved surface for being set as being recessed upwards by the bottom surface of indentor point, indentor point is enabled to be bonded weldering
Item, and the position of fixed welding rod, avoid the position of welding rod offset main gate line.It, can be with by setting plate body for indentor point
Reduce the volume and weight of indentor point；By the curved surface for being set as being recessed upwards by the bottom surface of indentor point, enable indentor point
It is bonded welding rod, and the position of fixed welding rod, avoids the position of welding rod offset main gate line.By will pacify on each pressing mounting bar
The quantity of the pressing of dress is set greater than or the quantity of the main gate line equal to cell piece, can make each pressing mounting bar can
It is enough to compress whole welding rods corresponding with cell piece main gate line, by when pressing quantity is more, by phase on each pressing mounting bar
Point-blank with the pressing setting at position, so that the pressing on each pressing mounting bar at same position can be aligned
The same welding rod.
Embodiment eight
As shown in Figure 22, Figure 23, the present embodiment includes press holder 70-1, is equipped with conveying device below press holder 70-1
70-2, conveying device 70-2 are for conveying press holder 70-1 and cell piece；Press holder 70-1 includes pressure holding frame 70-11, pressure
It holds and is equipped with silk pressing 70-12 in frame 70-11.
Conveying device 70-2 includes delivery platform, and delivery platform one end is equipped with driven voller 700-21, delivery platform it is another
One end is equipped with drive roll 700-22, and drive roll 700-22 is set with conveyer belt on delivery platform by driving device 700-23
700-24.Driving device in the present embodiment uses motor.It presses frame 70-11 and is equipped with the retention bead 70-13 for being used for limit.
Delivery platform intermediate projections, pressure holding frame are withheld on delivery platform.In the process of work, there are cell piece, battery on conveyer belt
On piece has welding, and silk pressing is pressed on welding, and press holder realizes that bottom is hanging by silk pressing.
The present invention also provides a kind of weldings to draw compressing method, draws compression apparatus using as above any welding, and
And the following steps are included: welding is drawn to the welding pressing device；Welding on the welding pressing device is drawn to
Predetermined position；Cell piece on welding and pipeline on the predetermined position is pressed together.
The present invention also provides a kind of string welding machine, which includes above-mentioned welding traction compression apparatus, the string welding machine
It further include battery piece charging device, welding feeding device, welder；Feeding device is used to provide cell piece to pipeline, supplies
Expect that device is used to provide welding, feeding device and welding traction compression apparatus for cell piece and welding to welding traction compression apparatus
It is stacked together and compresses according to predetermined order, pipeline is used to for the cell piece being stacked together and welding to be transported to welding dress
Place is set, the cell piece being stacked together and welding are welded into battery strings by welder.
The string welding machine further includes scaling powder feeding device, and scaling powder feeding device can be set at feeding device, be used for
Scaling powder is sprayed to cell piece；Scaling powder feeding device also can be set at welding feeding device, for coating on welding
Scaling powder；Scaling powder feeding device can also be arranged in simultaneously at feeding device and welding feeding device, at the same to cell piece and
Scaling powder is coated on welding.
The string welding machine further includes a point string devices, divides string devices that road is arranged after welder, will weld the battery strings of bunchiness
Cut into scheduled length.
As shown from the above technical solution, welding of the invention draws the advantages of compression apparatus and method and good effect exists
In:
In the present invention, by the setting of welding pressing device and the second traction device of translatable movement, make conventional processes
It is middle stretch welding and be cut into the process of fixed-length welding-band send independently of fixed-length welding-band to putting cell piece position and wait machine
The process of people's film releasing, to make continuous process links in conventional processes disconnect, and the work before and after forming fixed-length welding-band
Intersect after at sequence, so that timing be made to be superimposed, to reduce the welding processing time, improves working efficiency.The present invention is also
Welding is compressed using welding positioning device, welding position is facilitated to fix, improves welding accuracy rate, improves yield rate and production effect
Rate.The present invention can integrate raising welding operating efficiency and quality, be suitable for modernization fast pace Production line, there is extraordinary city
Field prospect and application value.
General technical staff of the technical field of the invention should be appreciated that shown in above-mentioned specific embodiment part
Specific structure and technical process be merely exemplary, and not restrictive.Moreover, the technical field of the invention is common
Technical staff can be combined to constitute new skill various technical characteristics shown in the above according to various possible modes
Art scheme, or other changes are carried out, and be within the scope of the present invention.
Claims (16)
1. a kind of welding draws compression apparatus, which is characterized in that the welding traction compression apparatus includes the first traction device, the
Two traction devices, pipeline and welding positioning device, second traction device is installed on rear side of first traction device, described
Placing battery plate on pipeline, first traction device is for drawing welding to pre-position, the second traction dress
It sets for drawing the welding of the pre-position to the last one cell piece being placed on the pipeline, the weldering
With positioning device be used for by the pipeline welding and cell piece be pressed together.
2. welding as described in claim 1 draws compression apparatus, which is characterized in that the welding draws compression apparatus and further includes
It is oriented to welding device；The institute between first traction device and second traction device is arranged in the guiding welding device
State pre-position.
3. welding as claimed in claim 2 draws compression apparatus, which is characterized in that the welding draws compression apparatus and further includes
Guide plate, on the mobile device, the mobile device drives the guide plate elevating movement and/or traversing for guide plate installation
Movement.
4. welding as claimed in claim 3 draws compression apparatus, which is characterized in that be provided at least two on the guide plate
It is oriented to the groove of welding.
5. welding as described in claim 1 draws compression apparatus, which is characterized in that first traction device includes the first shifting
Motivation structure, the first movement mechanism drive the first traction device lifting and/or transverse motion.
6. welding as described in claim 1 draws compression apparatus, which is characterized in that second traction device includes the second shifting
Motivation structure, second mobile mechanism drive the second traction mechanism lifting and/or transverse motion.
7. the welding as described in claim 1-6 is any draws compression apparatus, which is characterized in that the welding positioning device is independent
Setting, and the welding positioning device includes compressing structure, the compressing structure leads welding in second traction device
Draw laying to be in place afterwards pressed against welding and cell piece.
8. welding as claimed in claim 7 draws compression apparatus, which is characterized in that the compressing structure includes net pressing plate, institute
It states and multiple rows of pressing group is installed in net pressing plate, pressing is all had in multiple rows of pressing group, is arranged on the every pressing
Spring, the upper and lower ends of the spring abut against the end bosses of the net pressing plate and the pressing respectively.
9. welding as claimed in claim 7 draws compression apparatus, which is characterized in that the compressing structure includes counterweight set and pressure
Needle, the counterweight set are hollow columnar structures, and one end of the pressing is inserted into from one end that the counterweight covers and relatively fixed, institute
The other end for stating pressing is overhung at outside the counterweight set.
10. welding as claimed in claim 7 draws compression apparatus, which is characterized in that the compressing structure includes support plate, peace
At least one support bar in the support plate and at least one pressing being mounted on the support bar；The pressing packet
Sleeve, indentor point and spring are included, the upper end of the sleeve is fixed on the support bar, is opened up on the lower end of the sleeve
There is kidney slot, the indentor point upper end is provided with pin, and the pin passes through the kidney slot, and the spring is mounted on described
In sleeve.
11. welding as claimed in claim 7 draws compression apparatus, which is characterized in that the compressing structure includes silk screen and use
In the frame of the fixation silk screen, the silk screen is used to compress welding and cell piece.
12. welding as claimed in claim 11 draws compression apparatus, which is characterized in that it is provided with pressing on the silk screen,
The silk screen is compressed welding and cell piece by the pressing.
13. welding as claimed in claim 7 draws compression apparatus, which is characterized in that the welding positioning device includes pressing
Mounting bar, band spring, at least one spring and at least one pressing；The spring and the pressing correspond；The pressure
Needle includes indentor point and upper end raised around；Pressing installation through-hole is provided on the pressing mounting bar；The pressing
It is mounted on the pressing mounting bar by the pressing installation through-hole, the indentor point reveals from the lower section of the pressing mounting bar
Out；The band spring is fixed on above the pressing mounting bar；The spring is contained in the pressing installation through-hole, described
One end of spring is pressed on the upper end of the pressing, and the other end of the spring presses against on the band spring.
14. welding as claimed in claim 7 draws compression apparatus, which is characterized in that the welding positioning device includes pressure holding
Device and transfer device, the transfer device is for transferring the press holder and cell piece；The press holder includes pressure holding
Frame, the pressure holding frame is interior to be equipped with silk pressing.
15. a kind of welding draws compressing method, which is characterized in that draw pressure using the welding as described in claim 1-14 is any
Clamping apparatus, and the following steps are included:
First traction device draws welding to the guiding welding device；
Welding at the guiding welding device is drawn on the cell piece of the pipeline conveying by second traction device；
The welding positioning device by the pipeline welding and cell piece be pressed together.
16. a kind of string welding machine, which is characterized in that the string welding machine draws pressure using the welding as described in claim 1-14 is any
Clamping apparatus, the string welding machine further include battery piece charging device, welding feeding device, welder；The feeding device is used for
To the pipeline provide cell piece, the feeding device be used for the welding traction compression apparatus provide welding, it is described on
Cell piece and welding are stacked together and are compressed according to predetermined order with welding traction compression apparatus by material device, described defeated
For the cell piece being stacked together and welding to be transported at the welder, the welder will be stacked to one for line sending
The cell piece and welding risen is welded into battery strings.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811308247.4A CN109277734A (en) | 2018-11-05 | 2018-11-05 | Welding draws compression apparatus and method and string welding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308247.4A CN109277734A (en) | 2018-11-05 | 2018-11-05 | Welding draws compression apparatus and method and string welding machine |
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| CN109794713A (en) * | 2019-03-28 | 2019-05-24 | 武汉三工智能装备制造有限公司 | Pressing component and welder |
| CN110893497A (en) * | 2019-12-06 | 2020-03-20 | 无锡奥特维科技股份有限公司 | Battery piece series welding device and battery piece series welding equipment |
| CN111151929A (en) * | 2020-01-20 | 2020-05-15 | 无锡奥特维科技股份有限公司 | Battery piece series welding equipment and battery piece series welding method |
| CN112059357A (en) * | 2020-08-31 | 2020-12-11 | 晶澳（邢台）太阳能有限公司 | Series welding machine needle pressing mechanism, series welding machine and pressing method thereof |
| CN113695796A (en) * | 2021-08-27 | 2021-11-26 | 浙江晶科能源有限公司 | Welding tool and battery string manufacturing method |
| CN113894554A (en) * | 2021-10-11 | 2022-01-07 | 武汉三工新能源科技有限公司 | Battery piece welding system |
| CN114700661A (en) * | 2022-04-28 | 2022-07-05 | 晶科能源(海宁)有限公司 | Clamping and traction mechanism and welding strip clamping and traction method |
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