CN110270751A - A kind of welder and welding method - Google Patents
A kind of welder and welding method Download PDFInfo
- Publication number
- CN110270751A CN110270751A CN201810210614.0A CN201810210614A CN110270751A CN 110270751 A CN110270751 A CN 110270751A CN 201810210614 A CN201810210614 A CN 201810210614A CN 110270751 A CN110270751 A CN 110270751A
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- Prior art keywords
- bonding machine
- wing
- edge
- weldment
- soldering tip
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- 238000003466 welding Methods 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005476 soldering Methods 0.000 claims abstract description 101
- 238000002203 pretreatment Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
-
- 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
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- 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
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/38—Conductors
Abstract
The present invention provides a kind of welder, including the first bonding machine, the second bonding machine and welding fixture for being fixedly welded part, welding fixture is arranged between the first bonding machine and the second bonding machine, and the first bonding machine and the second bonding machine are ultrasonic welding machine；First bonding machine and the second bonding machine adjust the relative position between its soldering tip, weld nest and weldment respectively；Welding fixture is connect with driving device, and weldment does straight line and/or rotary motion under the drive of the drive.The present invention also provides a kind of welding methods using the welder, move welding fixture in the vertical direction, and welding fixture rotates between the first bonding machine and the second bonding machine.The present invention solves the problems, such as that battery core pre-treatment and welding sequence are complicated, improves work efficiency.
Description
Technical field
The present invention relates to a kind of welder and welding methods.
Background technique
Currently, needed by weldment fixed clamp between soldering tip and weld nest when welder welds weldment,
When different location needs multiple stations there are when multiple pads on weldment, and need to carry out weldment to repeat fixation, effect
Rate is low.
In traditional battery modules welding procedure, since two tab materials are different, at least one tab can not directly with remittance
(Laser Welding can not weld material with different melting points) is welded and fixed in stream row in a manner of Laser Welding, it is therefore desirable at least
Another metal is transferred on one tab to realize the laser welding of two tabs and busbar connector.Switching is increased during this
Process keeps battery core pretreatment procedure complicated, not only increases cost, is also also easy to produce switching bring product quality problem, reliably
Property reduce；And the detection mode of laser weld joint is with centainly damaging.
Common ultrasonic welding machine can only weld single position, and when a part of rigidity of weldment is larger
When, ultrasonic welding machine is directive to the welding of weldment, at this point, the weld nest of ultrasonic welding machine can be only positioned at weldment
The biggish side of rigidity.In this way, when in weldment some rigidity it is larger and when welding position is more, common ultrasonic wave
The welding efficiency of bonding machine is difficult to improve.
Summary of the invention
The invention discloses a kind of welders, including the first bonding machine, the second bonding machine and for being fixedly welded part
Welding fixture, welding fixture are arranged between the first bonding machine and the second bonding machine, and the weldment includes battery modules, battery
Thickness direction of the mould group by battery core along battery core stacks, and the first bonding machine and the second bonding machine are ultrasonic welding machine；First
Bonding machine includes at least soldering tip and weld nest, and the second bonding machine includes at least soldering tip and weld nest, the first bonding machine and the second bonding machine
The relative position between its soldering tip, weld nest and weldment is adjusted respectively；Welding fixture is connect with driving device, so that weldment exists
Straight line and/or rotary motion are done under the driving of driving device.
First bonding machine and the second bonding machine adjust the relative position between its soldering tip, weld nest and weldment respectively, make this
The soldering tip and weld nest of two bonding machines are able to clamp weldment or loosen the clamping to weldment.
Weldment does straight line and/or rotary motion under the drive of the drive, convenient for bonding machine in same station butt welding
Multiple positions of fitting are welded, and working efficiency is improved.
It in one embodiment of the invention, further include the first workbench and the second workbench, the first workbench and
Two workbench are arranged on the rack, and the first worktable upper surface is provided with the first sliding rail, and the second worktable upper surface is provided with
Two sliding rails, the first bonding machine are arranged on the first workbench, and the second bonding machine is arranged on the second workbench, welding fixture setting
Between the first workbench and the second workbench, the first bonding machine and the second bonding machine are utilized respectively the first sliding rail and the second sliding rail
Change its horizontal distance with welding fixture.
In one embodiment of the invention, the first bonding machine and the second bonding machine are respectively to opposite two of weldment
It is welded in a face.
First bonding machine and the second bonding machine respectively weld opposite two face of weldment, convenient for butt welding simultaneously
The different location of fitting is welded, to improve welding efficiency.
In one embodiment of the invention, the first bonding machine and the second bonding machine simultaneously weld weldment.
In one embodiment of the invention, driving device includes cylinder and motor, and cylinder driving welding fixture does axis
To movement, motor driven welding fixture makes rotating motion, and makes the location swap in opposite two face of weldment.
Wherein, axially refer to that the axial direction of cylinder, the axial direction of cylinder are identical as the stacking direction of battery core in weldment.
In one embodiment of the invention, motor driven weldment rotates, and the rotary shaft and horizontal plane of weldment are hung down
Directly.
In one embodiment of the invention, motor driven weldment rotates, and the rotary shaft and horizontal plane of weldment are flat
Row.
In one embodiment of the invention, welding fixture is connect with cylinder, and cylinder drives welding fixture in vertical side
To movement.
The either above or below of welding fixture is arranged in cylinder, and welding fixture moves along the vertical direction in the presence of cylinder
It is dynamic.
The side of welding fixture is provided with support frame, and the piston rod of cylinder is connect with support frame, work of the support frame in cylinder
It can be moved back and forth in vertical direction under, welding fixture connect with support frame and moves back and forth with support frame in vertical direction.
Welding fixture is connected to motor, and motor driven welding fixture makes the location swap in opposite two face of weldment.
In one embodiment of the invention, the side of welding fixture, the shaft and weld clip of motor is arranged in motor
Tool connection, is parallel to the horizontal plane the rotary shaft of weldment.
Motor is arranged on the support frame and can move back and forth with support frame in vertical direction, and the shaft of motor drives weld clip
Tool and the weldment fixed by it rotate.
In one embodiment of the invention, motor setting is in welding fixture either above or below, the shaft of motor with
Welding fixture connection, makes the rotary shaft and horizontal plane of weldment.
The shaft of motor drives welding fixture and the weldment fixed by it to rotate, and converts the position of weldment, is not changing
It, can be to weldment under the premise of becoming the first bonding machine/second bonding machine and the first workbench/second workbench relative position
Other positions welded.
Motor is disposed there above the side on the support frame of (lower section) close to welding fixture, the top (lower section) of support frame
It is provided with cylinder, the piston rod of cylinder is connect with support frame.
The piston rod of cylinder drives the motor and welding fixture of support frame and its top (lower section) to move up and down；Motor turns
Axis drives welding fixture rotation.
In one embodiment of the invention, the soldering tip of the soldering tip of the first bonding machine and the second bonding machine is arranged respective
Weld nest same side.
For example, when the first workbench and the second workbench are horizontally mounted, the soldering tip of the first bonding machine and the second bonding machine
Soldering tip be located at the top of respective weld nest or the soldering tip of the first bonding machine and the soldering tip of the second bonding machine is located at
The lower section of respective weld nest.
In one embodiment of the invention, the soldering tip of the soldering tip of the first bonding machine and the second bonding machine is arranged respective
Weld nest opposite side.
For example, the soldering tip of the first bonding machine is located at the upper of weld nest when the first workbench and the second workbench are horizontally mounted
Side, the soldering tip of the second bonding machine are located at the lower section of weld nest.
Beneficial effects of the present invention:
Welder provided by the invention can directly weld the different parts of weldment simultaneously using ultrasonic welding machine,
The operational sequence for simplifying welding, improves welding efficiency, reduces costs；Weldment is transported with the upper and lower of welding fixture and rotation
It is dynamic, do not change operating position, same station can complete the welding of weldment, save the placing space of equipment, improve
Working efficiency.
The present invention also provides a kind of welding methods, using the welder, and include the following steps:
A. weldment is fixed in welding fixture, the weldment includes battery modules and U-shaped connection sheet, the battery
Mould group is made of several battery cores stacking, and the U-shaped connection sheet is arranged between the tab of adjacent battery core；
B. the position for adjusting the first bonding machine and the second bonding machine respective soldering tip and weld nest, makes the soldering tip of the first bonding machine
At least one tab of battery modules side and the edge of a wing of the U-shaped connection sheet adjacent with the tab are clamped with weld nest, by the tab
It is welded with the edge of a wing of U-shaped connection sheet；The soldering tip and weld nest of second bonding machine clamp at least one tab of the battery modules other side
The edge of a wing of the tab and U-shaped connection sheet is welded on the edge of a wing of the U-shaped connection sheet adjacent with the tab；
C. the first bonding machine and the distance between the respective soldering tip of the second bonding machine and weld nest are adjusted, the first bonding machine is adjusted
With the second bonding machine respectively at a distance from weldment, so that weldment is deviate from between corresponding soldering tip and weld nest；
D. driving device driving weldment rotates between the first bonding machine and the second bonding machine, keeps battery modules opposite
Two face location swaps, then repeatedly step b and step c.
The battery core is soft pack cell, and U-shaped connection sheet includes connector and first edge of a wing positioned at connector opposite end
With second edge of a wing, first edge of a wing is identical with the second edge of a wing extending direction；First edge of a wing and second edge of a wing are to far from battery modules
Direction extends.
As an implementation, it is opposite to be located at soft pack cell for the positive and negative tab of the soft pack cell in battery modules
Both ends, soft pack cell are stacked into after mould group, and several U-shaped connection sheets are separately positioned on the adjacent pole in the opposite two sides of battery modules
Between ear, realized in series and parallel between soft pack cell by U-shaped connection sheet.
First edge of a wing and second edge of a wing of the same U-shaped connection sheet are separately connected the ipsilateral different tabs of battery modules, single
A first edge of a wing or second edge of a wing can be corresponding with multiple tabs, using welding method provided by the invention by single first edge of a wing or
Second edge of a wing is together with multiple tab weldings.
In one embodiment of the invention, step c further includes step c1: driving device driving weldment linearly moves
It is dynamic, so that weldment moves linearly relative to the first bonding machine and/or the second bonding machine, then repeatedly step b and step c.
Cylinder can be set in the either above or below of welding fixture, the piston rod of cylinder with the movement of piston on move down
It is dynamic, and drive welding fixture and moved up and down by its weldment fixed.
After weldment is mobile, the soldering tip and weld nest of the first bonding machine clamp another U-shaped connection sheet the edge of a wing and with the wing
The corresponding tab of edge, and be welded to together；Meanwhile second bonding machine soldering tip and weld nest clamp the battery modules other sides
The edge of a wing of another U-shaped connection sheet and tab corresponding with the edge of a wing, and be welded to together.
In the step d, the rotary shaft of weldment is parallel to the horizontal plane, and rotational angle is 180 °.
Soft pack cell stacks in a thickness direction in battery modules, and at least a piece of soft pack cell is parallel to the horizontal plane,
First edge of a wing is located above second edge of a wing, and after welding fixture rotates 180 °, first edge of a wing is located at below second edge of a wing.
In one embodiment of the invention, the soldering tip of the soldering tip of the first bonding machine and the second bonding machine is arranged at respectively
From weld nest top, soft pack cell stacks in a thickness direction, and first edge of a wing is located above second edge of a wing.First bonding machine
Soldering tip and weld nest clamp a U-shaped connection sheet to be welded first edge of a wing and tab corresponding with first edge of a wing, and by its
Weld together；The soldering tip and weld nest of second bonding machine clamp a U-shaped connection sheet to be welded of the battery modules other side
First edge of a wing and tab corresponding with first edge of a wing, and be welded to together；The welding of the upper surface on tab and first edge of a wing
Together.
The rotary shaft of battery modules is parallel to the horizontal plane, and rotates 180 °, makes the position in opposite two face of weldment
It exchanges, at this point, first edge of a wing is located at below second edge of a wing, the soldering tip and weld nest of the first bonding machine clamp a U-shaped to be welded
Second edge of a wing of connection sheet and tab corresponding with second edge of a wing, and be welded to together；Meanwhile second bonding machine weldering
Second edge of a wing of one U-shaped connection sheet of head and the weld nest clamping battery modules other side and tab corresponding with second edge of a wing,
And it is welded to together；It is final realize it is series-parallel between soft pack cell, after rotation, the tab in fact upper table with second edge of a wing
Face welds together.
In one embodiment of the invention, the soldering tip of the soldering tip of the first bonding machine and the second bonding machine is arranged at respectively
From weld nest lower section, soft pack cell stacks in the vertical direction, and first edge of a wing is located above second edge of a wing.First bonding machine
Soldering tip and weld nest clamp a U-shaped connection sheet to be welded second edge of a wing and tab corresponding with second edge of a wing, and by its
Weld together；The soldering tip and weld nest of second bonding machine clamp a U-shaped connection sheet to be welded of the battery modules other side
Second edge of a wing and tab corresponding with second edge of a wing, and be welded to together；The welding of the lower surface on tab and second edge of a wing
Together.
The rotary shaft of weldment is parallel to the horizontal plane, and rotates 180 °, keeps the position in opposite two face of weldment mutual
It changes, at this point, first edge of a wing is located at below second edge of a wing, the soldering tip and weld nest of the first bonding machine clamp a U-shaped to be welded and connect
First edge of a wing of contact pin and tab corresponding with first edge of a wing, and be welded to together；Meanwhile second bonding machine soldering tip
With weld nest clamp the battery modules other side a U-shaped connection sheet first edge of a wing and tab corresponding with first edge of a wing, and
It is welded to together；It is final realize it is series-parallel between soft pack cell, after rotation, the tab in fact lower surface with first edge of a wing
Weld together.
In one embodiment of the invention, the top of its weld nest, the second welding is arranged in the soldering tip of the first bonding machine
The lower section of its weld nest is arranged in the soldering tip of machine；In the step d, the rotary shaft and horizontal plane and rotation of battery modules
180°。
Soft pack cell stacks in the vertical direction, and first edge of a wing is located above second edge of a wing.The soldering tip of first bonding machine and
First edge of a wing of weld nest one U-shaped connection sheet to be welded of clamping and tab corresponding with first edge of a wing；Second bonding machine
Second edge of a wing of the U-shaped connection sheet of soldering tip and the weld nest clamping battery modules other side and tab corresponding with second edge of a wing.The
The upper surface on one edge of a wing and together with the corresponding tab welding in first edge of a wing, the lower surface on second edge of a wing and with second wing
The corresponding tab welding of edge is together.
The rotary shaft and horizontal plane of weldment, and 180 ° are rotated, first edge of a wing is still located above second edge of a wing,
The soldering tip and weld nest of first bonding machine clamp first edge of a wing of another U-shaped connection sheet to be welded and corresponding with first edge of a wing
Tab, be welded to together；The soldering tip of second bonding machine is connected with another U-shaped that weld nest clamps the battery modules other side
Second edge of a wing of piece and tab corresponding with second edge of a wing, are welded to together；The final string realized between soft pack cell is simultaneously
Connection.
In one embodiment of the invention, two opposite end faces of battery core are provided with tab.
In one embodiment of the invention, when the first bonding machine and the second bonding machine clamp weldment, soldering tip with
The tab of soft pack cell contacts, and weld nest is contacted with the edge of a wing of U-shaped connection sheet.Due to the needs of overcurrent, U-shaped connection sheet is thicker, will
It is contacted with weld nest, and tab is relatively thin, it is contacted with soldering tip, is conducive to the welding between tab and weld nest.
Beneficial effects of the present invention:
Welding method provided by the invention can directly be welded together unlike material using ultrasonic welding machine, different materials
The tab of material all welds together with U-shaped connection sheet, simplifies the pretreatment procedure of battery core, reduces costs；First bonding machine
Opposite two side of battery modules is welded simultaneously with the second bonding machine, improves welding efficiency；Weldment is with weldering
The upper and lower and rotary motion of welding fixture completes the welding between tab and U-shaped connection sheet in same station, saves working space,
It improves work efficiency.
Detailed description of the invention
Fig. 1 is welder isometric view.
Fig. 2 is the enlarged diagram of position A in Fig. 1.
Fig. 3 is the isometric view of weldment.
Fig. 4 is the enlarged diagram of position B in Fig. 3.
Fig. 5 is the schematic elevation view of welder.
Fig. 6 is the enlarged diagram of position C in Fig. 5.
Fig. 7 is the enlarged diagram of position D in Fig. 5.
Fig. 8 is welder left view schematic diagram.
Description of symbols:
1: the first bonding machine, 11: the first workbench, 2: the second bonding machines, 21: the second workbench, 3: welding fixture, 4: weldering
Fitting, 40: battery modules, 41: tab, 42:U shape connection sheet, 420: connector, 421: the first edges of a wing, 422: the second edges of a wing, 5:
Soldering tip, 6: weld nest, 7: cylinder, 8: motor, 81: shaft, 9: support frame.
Specific embodiment
The present invention is described in detail in specific embodiment below, however the present invention is not restricted to following implementation
Example.
Embodiment 1:
As shown in Figure 1 and Figure 2, the present embodiment provides a kind of welders, including the first bonding machine 1,2 and of the second bonding machine
For being fixedly welded the welding fixture 3 of part 4, welding fixture 3 and the setting of weldment 4 the first bonding machine 1 and the second bonding machine 2 it
Between；First bonding machine 1 and the second bonding machine 2 are separately positioned on the first workbench 11 and the second workbench 21, the first workbench
11 and second workbench 21 it is horizontally disposed on the rack；It is sliding that first is respectively arranged on first workbench 11 and the second workbench 21
Rail and the second sliding rail, the first bonding machine 1 can be moved along the first sliding rail, and the second bonding machine 2 can be moved along the second sliding rail, the first welding
Machine 1 and the second bonding machine 2 are utilized respectively the first sliding rail and the second sliding rail changes the horizontal distance of itself and weldment 4.
First bonding machine 1 and the second bonding machine 2 are ultrasonic welding machine；First bonding machine 1 and the second bonding machine 2 can be distinguished
Adjust the relative position between its soldering tip 5, weld nest 6 and weldment 4；First bonding machine 1 and the second butt welding respectively simultaneously of bonding machine 2
It is welded opposite two side of fitting 4.
Shown in as shown in Figure 1, Figure 3 and Figure 4, weldment 4 includes battery modules 40 and U-shaped connection sheet 42, and battery modules 40 are by counting
A soft pack cell stacks composition, and several U-shaped connection sheets 42 are separately positioned between the tab 41 of adjacent soft pack cell, to realize
It is series-parallel between soft pack cell.U-shaped connection sheet 42 is including connector 420 and is located at 420 opposite sides of connector and extension side
To identical first edge of a wing 421 and second edge of a wing 422；First edge of a wing 421 is located at second edge of a wing, 422 top, first edge of a wing, 421 He
Second edge of a wing 422 extends to the direction far from battery modules 40.The outside on first edge of a wing 421 and second edge of a wing 422 and tab 41
Contact.
As shown in Figure 4, Figure 5, Figure 6 and Figure 7, the soldering tip 5 of the soldering tip 5 of the first bonding machine 1 and the second bonding machine 2 is arranged at
The top of respective weld nest 6；(soldering tip 5 and weld nest 6 are pressed from both sides when first bonding machine 1 and the second bonding machine 2 weld weldment 4
Hold the edge of a wing of tab 41 and U-shaped connection sheet 42), soldering tip 5 is contacted with tab 41, and weld nest 6 is contacted with the edge of a wing of U-shaped connection sheet 42.
Specifically, the soldering tip 5 and weld nest 6 of the first bonding machine 1 clamp first edge of a wing of a U-shaped connection sheet 42 to be welded
421 and tab corresponding with first edge of a wing 421 41 (in the present embodiment, the quantity of tab 41 corresponding with first edge of a wing 421
It is 3), and be welded to together；Meanwhile second bonding machine 2 soldering tip 5 and weld nest 6 clamp the battery modules other side one
First edge of a wing 421 of a U-shaped connection sheet 42 to be welded and tab corresponding with first edge of a wing 421 41 (in the present embodiment, with
The quantity of the corresponding tab 41 in first edge of a wing 421 is 3), and be welded to together.
As shown in Figure 5, Figure 8, welding fixture 3 can move along the vertical direction；The top of welding fixture 3 is provided with cylinder 7, gas
Cylinder 7 is fixed on the rack, and welding fixture 3 moves along the vertical direction under the action of cylinder 7.Specifically, the side of welding fixture 3
It is provided with support frame 9, the piston rod of cylinder 7 is connect with support frame 9, and support frame 9 can be done under the action of cylinder 7 in vertical direction
It moves back and forth, welding fixture 3 and support frame 9 pass through motor 8 and connect, and motor 8 and welding fixture 3 are with support frame 9 in vertical direction
It reciprocatingly moves.
As shown in Fig. 4, Fig. 5, Fig. 6 and Fig. 8, after weldment 4 is mobile, the soldering tip 5 and weld nest 6 of the first bonding machine 1 are clamped separately
First edge of a wing 421 of one U-shaped connection sheet 42 and tab 41 corresponding with first edge of a wing 421, are welded to together；Together
When, the soldering tip 5 and weld nest 6 of the second bonding machine 2 clamp the of another U-shaped connection sheet 42 to be welded of the battery modules other side
One edge of a wing 421 and tab 41 corresponding with first edge of a wing 421, are welded to together.
Welding fixture 3 can rotate under the driving of motor 8 between the first bonding machine 1 and the second bonding machine 2, make weldment
The location swap in 4 upper and lower two face；The side of welding fixture 3 is provided with motor 8, and motor 8 is fixed on support frame 9, electricity
The shaft 81 of machine 8 is connect with welding fixture 3, makes 4 synchronous rotary of the welding fixture 3 and weldment (rotary shaft and level of weldment 4
Face is parallel).
Weldment 4 rotates 180 ° (rotary shaft of weldment is parallel to the horizontal plane), makes upper and lower two face of weldment 4
Location swap, after rotation, first edge of a wing 421 is located at second edge of a wing, 422 lower section, and the soldering tip 5 and weld nest 6 of the first bonding machine 1 clamp
Second edge of a wing 422 of one U-shaped connection sheet 42 to be welded and tab corresponding with second edge of a wing 422 41 (in the present embodiment,
The quantity of tab 41 corresponding with second edge of a wing 422 is 3), and be welded to together；Meanwhile second bonding machine 2 weldering
First 5 and weld nest 6 clamp second edge of a wing 422 of a U-shaped connection sheet 42 of the battery modules other side and right with second edge of a wing 422
The tab 41 (in the present embodiment, the quantity of tab 41 corresponding with second edge of a wing 422 is 3) answered, and it is welded to one
It rises；Series-parallel between final realization soft pack cell, after rotation, in fact the upper surface on second edge of a wing 422 is welded on tab 41
Together.
Embodiment 2:
As shown in Figure 1 and Figure 2, the present embodiment provides a kind of welders, including the first bonding machine 1,2 and of the second bonding machine
For being fixedly welded the welding fixture 3 of part 4, weldment 4, welding fixture 3 and the welding fixed by it are fixed in welding fixture 3
Part 4 is arranged between the first bonding machine 1 and the second bonding machine 2, and the first bonding machine 1 and the second bonding machine 2 are separately positioned on first
On workbench 11 and the second workbench 21, the first workbench 11 and the second workbench 21 are horizontally disposed on the rack；First work
The first sliding rail and the second sliding rail are respectively arranged on platform 11 and the second workbench 21, the first bonding machine 1 can be moved along the first sliding rail,
Second bonding machine 2 can be moved along the second sliding rail, and the first bonding machine 1 and the second bonding machine 2 are utilized respectively the first sliding rail and second and slide
Rail changes the horizontal distance of itself and weldment 4.
First bonding machine 1 and the second bonding machine 2 are ultrasonic welding machine；First bonding machine 1 and the second bonding machine 2 can be distinguished
Adjust the distance between its soldering tip 5, weld nest 6 and weldment 4；First bonding machine 1 and the second bonding machine 2 are simultaneously respectively to weldment
It is welded 4 opposite two side.
Shown in as shown in Figure 1, Figure 3 and Figure 4, weldment 4 includes battery modules 40 and U-shaped connection sheet 42, and battery modules 40 are by counting
A soft pack cell stacks composition, and several U-shaped connection sheets 42 are separately positioned between the tab 41 of adjacent soft pack cell, to realize
It is series-parallel between soft pack cell.U-shaped connection sheet 42 is including connector 420 and is located at 420 opposite sides of connector and extension side
To identical first edge of a wing 421 and second edge of a wing 422；First edge of a wing 421 is located at second edge of a wing, 422 top, first edge of a wing, 421 He
Second edge of a wing 422 extends to the direction far from battery modules 40.The outside on first edge of a wing 421 and second edge of a wing 422 and tab 41
Contact.
The top of its weld nest 6 is arranged in the soldering tip 5 of first bonding machine 1；The soldering tip 5 of second bonding machine 2 is arranged in its weld nest 6
Lower section (not shown).(soldering tip 5 and weld nest 6 are pressed from both sides when first bonding machine 1 and the second bonding machine 2 weld weldment 4
Hold the edge of a wing of tab 41 and U-shaped connection sheet 42), soldering tip 5 is contacted with tab 41, and weld nest 6 is contacted with the edge of a wing of U-shaped connection sheet 42.
Welding fixture 3 can move along the vertical direction；Welding fixture 3 can turn between the first bonding machine 1 and the second bonding machine 2
It is dynamic, make the location swap of opposite two side of weldment 4.
Motor 8 is provided with below welding fixture 3, the shaft 81 of motor 8 is connect with welding fixture 3, rotates welding fixture 3
(rotary shaft and horizontal plane of welding fixture 3).It is specific: on the fixed support frame 9 thereunder of motor 8, under support frame 9
Side is provided with cylinder 7, and cylinder 7 is fixed on the rack, and the piston rod of cylinder 7 is connect with support frame 9；The piston rod of cylinder 7 can band
Dynamic support frame 9 and its motor 8 and welding fixture 3 of top move up and down；Motor 8 can drive welding fixture 3 by its shaft 81
(not shown) is rotated synchronously with weldment 4.
Embodiment 3:
The present embodiment provides a kind of welding methods, include the following steps:
A. weldment 4 being fixed in welding fixture 3, the weldment 4 includes battery modules 40 and U-shaped connection sheet 42,
The battery modules 40 are made of several soft pack cells stacking, and the tab of adjacent soft pack cell is arranged in the U-shaped connection sheet 42
Between 41, two opposite end faces of soft pack cell are provided with tab 41.
U-shaped connection sheet 42 is arranged between the tab 41 of adjacent soft pack cell, to realize the string between soft pack cell simultaneously
Connection.In fact, several U-shaped connection sheets 42 are separately positioned between the tab 41 of the opposite two sides of weldment 4 by the step.
U-shaped connection sheet 42 includes connector 420 and be located at 420 opposite sides of connector and identical first wing of extending direction
Edge 421 and second edge of a wing 422；First edge of a wing 421 is located at second edge of a wing, 422 top, and first edge of a wing 421 is to far from battery modules 40
Direction extend.The outside on first edge of a wing 421 and second edge of a wing 422 is contacted with tab 41.
B. the position for adjusting the first bonding machine 1 and the second bonding machine 2 respective soldering tip 5 and weld nest 6, makes the first bonding machine 1
Soldering tip 5 and weld nest 6 clamp 40 side of battery modules at least one tab 41 and the U-shaped connection sheet 42 adjacent with the tab 41
The edge of a wing, by the edge of a wing of the tab 41 and U-shaped connection sheet 42 weld；The soldering tip 5 and weld nest 6 of second bonding machine 2 clamp battery mould
At least one tab 41 of 40 other sides of group and the edge of a wing of the U-shaped connection sheet 42 adjacent with the tab 41, by the tab 41 and U-shaped
It welds on the edge of a wing of connection sheet 42.
In fact, the weld nest 6 of the first bonding machine 1 and the weld nest 6 of the second bonding machine 2 U with 40 two sides of battery modules respectively
The edge of a wing of shape connection sheet 42 contacts；The soldering tip 5 and weld nest 6 of first bonding machine 1 clamp the U-shaped to be welded of 40 side of battery modules
The edge of a wing of connection sheet 42 and tab 41, the soldering tip 5 and weld nest 6 of the second bonding machine 2 clamp the to be welded of 40 other side of battery modules
U-shaped connection sheet 42 the edge of a wing and tab 41；The edge of a wing of tab 41 and U-shaped connection sheet 42 is welded together.
Step b adjusts opposite between the first bonding machine 1 and the respective soldering tip 5 of the second bonding machine 2, weld nest 6 and weldment 4
Position, the U-shaped for making the first bonding machine 1 and the respective weld nest 6 of the second bonding machine 2 compress the opposite two sides of battery modules 40 respectively connect
The edge of a wing of contact pin 42, the first bonding machine 1 and the respective soldering tip 5 of the second bonding machine 2 compress the opposite two sides of battery modules 40 respectively
Tab 41, tab 41 and U-shaped connection sheet 42 are welded together.
Specifically, the weld nest 6 and soldering tip 5 of the first bonding machine 1 clamp first edge of a wing of a U-shaped connection sheet 42 to be welded
421 and tab 41 corresponding with first edge of a wing 421, and be welded to together；The weld nest 6 and soldering tip 5 of second bonding machine 2 are pressed from both sides
First edge of a wing 421 of one U-shaped connection sheet 42 to be welded of the tight battery modules other side and corresponding with first edge of a wing 421
Tab 41, and be welded to together.
C. the first bonding machine 1 and the distance between the respective soldering tip 5 of the second bonding machine 2 and weld nest 6 are adjusted, the first weldering is adjusted
Pick 1 and second bonding machine 2 respectively at a distance from weldment 4 so that weldment 4 takes off between corresponding soldering tip 5 and weld nest 6
Out.
In fact, the first bonding machine 1 and the respective soldering tip 5 of the second bonding machine 2 and weld nest 6 are loosened to U-shaped connection sheet 42
The clamping on the edge of a wing and tab 41.
C1. driving device drives 4 linear movement of weldment, so that weldment 4 is relative to the first bonding machine 1 and the second welding
Machine 2 moves linearly, then repeatedly step b and step c.
In fact, make battery modules 40 and U-shaped connection sheet 42 synchronizing moving in the vertical direction, then repeatedly step b and
Step c.
Step c1 is that welding fixture 3 moves in the vertical direction, battery modules 40 and U-shaped connection sheet 42 and welding fixture 3
Synchronizing moving.
Welding fixture 3 moves along the vertical direction, and specific: the top of welding fixture 3 is provided with cylinder 7, and cylinder 7 is fixed on
In rack, welding fixture 3 moves along the vertical direction under the action of cylinder 7；The side of welding fixture 3 is provided with support frame 9, gas
The piston rod of cylinder 7 is connect with support frame 9, and support frame 9 can reciprocatingly move under the action of cylinder 7 in vertical direction, weld clip
Tool 3 connect (motor 8 is fixed on support frame 9, and the shaft 81 of motor 8 is connect with welding fixture 3) by motor 8 with support frame 9,
Motor 8 and welding fixture 3 reciprocatingly move with support frame 9 in vertical direction.
After weldment 4 is mobile, the soldering tip 5 and weld nest 6 of the first bonding machine 1 clamp first wing of another U-shaped connection sheet 42
Edge 421 and tab 41 corresponding with first edge of a wing 421, are welded to together；Meanwhile second bonding machine 2 soldering tip 5 and weldering
Seat 6 clamp the battery modules other sides another U-shaped connection sheet 42 to be welded first edge of a wing 421 and with first edge of a wing
421 corresponding tabs 41, are welded to together.
D. driving device driving weldment 4 rotates between the first bonding machine 1 and the second bonding machine 2, makes battery modules 40
Two opposite face location swaps, then repeatedly step b and step c.
In fact, battery modules 40 and U-shaped connection sheet 42 rotate synchronously between the first bonding machine 1 and the second bonding machine 2,
Make the location swap in two faces of about 40 battery modules, then repeatedly step b and step c.
Welding fixture 3 generates rotation, battery modules 40 and U-shaped between the first bonding machine 1, the second bonding machine 2 in step d
Connection sheet 42 and 3 synchronous rotary of welding fixture (rotation).
Welding fixture 3 rotates between the first bonding machine 1 and the second bonding machine 2, makes the position in two faces of about 4 weldment
Set exchange.Specific: the first bonding machine 1 and the respective soldering tip 5 of the second bonding machine 2 are all disposed within the top of respective weld nest 6, weldering
Welding fixture 3 rotates 180 ° (rotary shaft of welding fixture 3 is parallel to the horizontal plane) under the action of motor 8.
Weldment 4 rotates 180 ° (rotary shaft of weldment 4 is parallel to the horizontal plane), makes two faces of about 4 weldment
Location swap, after rotation, first edge of a wing 421 is located at second edge of a wing, 422 lower section, and the soldering tip 5 and weld nest 6 of the first bonding machine 1 clamp
Second edge of a wing 422 of one U-shaped connection sheet 42 to be welded and tab 41 corresponding with second edge of a wing 422, and welded
Together；Meanwhile second bonding machine 2 soldering tip 5 and weld nest 6 clamp the battery modules other side a U-shaped connection sheet 42 the
Two edges of a wing 422 and tab 41 corresponding with second edge of a wing 422, and be welded to together；Between final realization soft pack cell
In series and parallel, after rotation, in fact the upper surface on second edge of a wing 422 welds together with tab 41.
Finally, make battery modules 40 and U-shaped connection sheet 42 synchronizing moving in the vertical direction, then repeatedly step b and step
Rapid c；At this point, the direction of motion of battery modules 40 and U-shaped connection sheet 42 is opposite with the direction of motion of weldment 4 in step c1.
First bonding machine 1 and the second bonding machine 2 are ultrasonic welding machine.
Embodiment 4:
The present embodiment provides a kind of welding methods, include the following steps:
A. weldment 4 being fixed in welding fixture 3, the weldment 4 includes battery modules 40 and U-shaped connection sheet 42,
The battery modules 40 are made of several soft pack cells stacking, and the tab of adjacent soft pack cell is arranged in the U-shaped connection sheet 42
Between 41, two opposite end faces of soft pack cell are provided with tab 41.
U-shaped connection sheet 42 is arranged between the tab 41 of adjacent soft pack cell, to realize the string between soft pack cell simultaneously
Connection.In fact, several U-shaped connection sheets 42 are separately positioned between the tab 41 of the opposite two sides of weldment 4 by the step.
U-shaped connection sheet 42 includes connector 420 and be located at 420 opposite sides of connector and identical first wing of extending direction
Edge 421 and second edge of a wing 422；First edge of a wing 421 is located at second edge of a wing, 422 top, and first edge of a wing 421 is to far from battery modules 40
Direction extend.The outside on first edge of a wing 421 and second edge of a wing 422 contacts (upper surface on first edge of a wing 421 and with tab 41
The lower surface on two edges of a wing 422 is contacted with tab 41).
B. the position for adjusting the first bonding machine 1 and the second bonding machine 2 respective soldering tip 5 and weld nest 6, makes the first bonding machine 1
Soldering tip 5 and weld nest 6 clamp 40 side of battery modules at least one tab 41 and the U-shaped connection sheet 42 adjacent with the tab 41
The edge of a wing, by the edge of a wing of the tab 41 and U-shaped connection sheet 42 weld；The soldering tip 5 and weld nest 6 of second bonding machine 2 clamp battery mould
At least one tab 41 of 40 other sides of group and the edge of a wing of the U-shaped connection sheet 42 adjacent with the tab 41, by the tab 41 and U-shaped
It welds on the edge of a wing of connection sheet 42.
The weld nest 6 of first bonding machine 1 and the weld nest 6 of the second bonding machine 2 the U-shaped connection sheet with 40 two sides of battery modules respectively
42 edge of a wing contact；The soldering tip 5 and weld nest 6 of first bonding machine 1 clamp the U-shaped connection sheet 42 to be welded of 40 side of battery modules
The edge of a wing and tab 41, the soldering tip 5 of the second bonding machine 2 connected with the U-shaped to be welded that weld nest 6 clamps 40 other side of battery modules
The edge of a wing of piece 42 and tab 41；The edge of a wing of tab 41 and U-shaped connection sheet 42 is welded together.
The top of its weld nest 6 is arranged in the soldering tip 5 of first bonding machine 1, and the soldering tip 5 of the second bonding machine 2 is arranged in its weld nest 6
Lower section, the soldering tip 5 and weld nest 6 of the first bonding machine 1 clamp a U-shaped connection sheet 42 to be welded first edge of a wing 421 and its
The tab 41 of upper surface, and be welded to together；Meanwhile second bonding machine 2 soldering tip 5 and weld nest 6 clamp battery modules 40
Second edge of a wing 422 of the U-shaped connection sheet 42 of the other side and its tab 41 of lower surface, and be welded to together.
C. the first bonding machine 1 and the distance between the respective soldering tip 5 of the second bonding machine 2 and weld nest 6 are adjusted, the first weldering is adjusted
Pick 1 and second bonding machine 2 respectively at a distance from weldment 4 so that weldment 4 takes off between corresponding soldering tip 5 and weld nest 6
Out.
First bonding machine 1 and the respective soldering tip 5 of the second bonding machine 2 and weld nest 6 loosen the edge of a wing and pole to U-shaped connection sheet 42
The clamping of ear 41.
C1. driving device drives 4 linear movement of weldment, so that weldment 4 is relative to the first bonding machine 1 and the second welding
Machine 2 moves linearly, then repeatedly step b and step c.
Make battery modules 40 and U-shaped connection sheet 42 synchronizing moving in the vertical direction, then repeatedly step b and step c.
D. driving device driving weldment 4 rotates between the first bonding machine 1 and the second bonding machine 2, makes battery modules 40
Two opposite face location swaps, then repeatedly step b and step c.
Battery modules 40 and U-shaped connection sheet 42 rotate synchronously between the first bonding machine 1 and the second bonding machine 2, make battery
The location swap of two opposite sides of mould group 40, then repeatedly step b and step c
Specific: welding fixture 3 first moves along the vertical direction, makes battery modules 40 and U-shaped connection sheet 42 in vertical direction
Upper synchronizing moving；Then, welding fixture 3 rotates 180 ° under the action of motor 8 (rotary shaft of welding fixture 3 and horizontal plane hangs down
Directly), battery modules 40 and U-shaped connection sheet 42 are rotated synchronously between the first bonding machine 1 and the second bonding machine 2.
Motor 8 is provided with below welding fixture 3, the shaft 81 of motor 8 is connect with welding fixture 3, can be made by shaft 81
Welding fixture 3 rotates (rotary shaft and horizontal plane of welding fixture 3)；On the fixed support frame 9 thereunder of motor 8, branch
Cylinder 7 is provided with below support 9, cylinder 7 is fixed on the rack, and the piston rod of cylinder 7 is connect with support frame 9；The piston of cylinder 7
Bar can drive support frame 9 and its motor of top 8 and welding fixture 3 to move up and down.
Finally, make battery modules 40 and U-shaped connection sheet 42 synchronizing moving in the vertical direction, then repeatedly step b and step
Rapid c；At this point, the direction of motion of battery modules 40 and U-shaped connection sheet 42 is opposite with the direction of motion of weldment 4 in step c1.
First bonding machine 1 and the second bonding machine 2 are ultrasonic welding machine.
The above, only certain specific embodiments of the invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily apparent that,
It should be covered by the protection scope of the present invention.Protection scope of the present invention is subject to the scope of protection of the claims.
Claims (10)
1. a kind of welder, which is characterized in that including the first bonding machine, the second bonding machine and welding for being fixedly welded part
Fixture, welding fixture are arranged between the first bonding machine and the second bonding machine, and the weldment includes battery modules, and described first
Bonding machine and the second bonding machine are ultrasonic welding machine；First bonding machine includes at least soldering tip and weld nest, second weldering
It picks and includes at least soldering tip and weld nest, the first bonding machine and the second bonding machine are adjusted respectively between its soldering tip, weld nest and weldment
Relative position；Welding fixture is connect with driving device, so that weldment does straight line and/or rotation under the drive of the drive
Movement.
2. a kind of welder as described in claim 1, it is characterised in that: the first bonding machine and the second bonding machine distinguish butt welding
It is welded in opposite two face of fitting.
3. a kind of welder as described in claim 1, it is characterised in that: the first bonding machine and the butt welding simultaneously of the second bonding machine
Fitting is welded.
4. a kind of welder as described in claim 1, it is characterised in that: the driving device includes cylinder and motor, institute
It states cylinder driving welding fixture to axially move, the motor driven welding fixture makes rotating motion.
5. a kind of welder as claimed in claim 4, it is characterised in that: the motor driven weldment rotation, the weldering
The rotary shaft of fitting and horizontal plane are parallel.
6. a kind of welder as described in claim 1, it is characterised in that: the soldering tip of first bonding machine and the second welding
The same side of respective weld nest is arranged in the soldering tip of machine or the soldering tip of first bonding machine and the soldering tip of the second bonding machine are set
Set the opposite side in respective weld nest.
7. a kind of welding method of weldment, which is characterized in that using any welder of claim 1 to 6, and wrap
Include following steps:
A. weldment is fixed in welding fixture, the weldment includes battery modules and U-shaped connection sheet, the battery modules
It is made of several battery cores stacking, the U-shaped connection sheet is arranged between the tab of adjacent battery core；
B. the position for adjusting the first bonding machine and the second bonding machine respective soldering tip and weld nest makes soldering tip and the weldering of the first bonding machine
Seat clamps at least one tab of battery modules side and the edge of a wing of the U-shaped connection sheet adjacent with the tab, by the tab and U-shaped
It welds on the edge of a wing of connection sheet；The soldering tip and weld nest of second bonding machine clamp the battery modules other side at least one tab and with this
The edge of a wing of the tab and U-shaped connection sheet is welded on the edge of a wing of the adjacent U-shaped connection sheet of tab；
C. it adjusts the first bonding machine and the distance between the respective soldering tip of the second bonding machine and weld nest, adjusts the first bonding machine and the
Two bonding machines are respectively at a distance from weldment, so that weldment is deviate from between corresponding soldering tip and weld nest；
D. driving device driving weldment rotates between the first bonding machine and the second bonding machine, makes two that battery modules are opposite
Face location swap, then repeatedly step b and step c.
8. welding method as claimed in claim 7, it is characterised in that: step c further includes step c1: driving device driving welding
Part linear movement, so that weldment moves linearly relative to the first bonding machine and/or the second bonding machine, then repeatedly step b
With step c.
9. welding method as claimed in claim 7, it is characterised in that: two opposite end faces of the battery core are provided with tab.
10. welding method as claimed in claim 7, it is characterised in that: first bonding machine and the second bonding machine are to welding
When part is welded, soldering tip is contacted with the tab of battery core, and weld nest is contacted with the edge of a wing of U-shaped connection sheet.
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| CN201810210614.0A CN110270751B (en) | 2018-03-14 | 2018-03-14 | Welding device and welding method |
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Cited By (1)
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| CN112975106A (en) * | 2021-02-26 | 2021-06-18 | 广东利元亨智能装备股份有限公司 | Weld assembly and welding machine |
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| Publication number | Publication date |
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| CN110270751B (en) | 2021-09-21 |
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Denomination of invention: A welding device and welding method Granted publication date: 20210921 Pledgee: South Taihu New Area sub branch of Huzhou Wuxing Rural Commercial Bank Co.,Ltd. Pledgor: MICROVAST POWER SYSTEMS Co.,Ltd. Registration number: Y2024980006716 |