CN106903419A - A kind of integral type ultrasonic welding machine for major diameter curved surface centrifugation blade - Google Patents
A kind of integral type ultrasonic welding machine for major diameter curved surface centrifugation blade Download PDFInfo
- Publication number
- CN106903419A CN106903419A CN201710214476.9A CN201710214476A CN106903419A CN 106903419 A CN106903419 A CN 106903419A CN 201710214476 A CN201710214476 A CN 201710214476A CN 106903419 A CN106903419 A CN 106903419A
- Authority
- CN
- China
- Prior art keywords
- soldering tip
- centrifugation blade
- curved surface
- major diameter
- diameter curved
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B23K37/0443—Jigs
Abstract
A kind of integral type ultrasonic welding machine for major diameter curved surface centrifugation blade, including board base, workbench and major diameter curved surface centrifugation blade, workbench is arranged on board base, and centrifugation blade charging slide unit, soldering tip erecting bed and motor mount are provided with workbench；Servomotor is provided with motor mount；Soldering tip fixed seat is provided with soldering tip erecting bed, supersonic welding head assembly is provided with soldering tip fixed seat.The improvement that the present invention passes through said structure, due to being provided with several soldering tip fixed seats on soldering tip erecting bed, supersonic welding head assembly is respectively provided with several soldering tip fixed seats, can realize being welded while multiple major diameter curved surface centrifugation blades, while greatly improving welding efficiency, also efficiently solve that weld strength is uneven and the big problem of welding stress, so that improve production efficiency, practical.
Description
Technical field
The present invention relates to a kind of integral type ultrasonic welding machine for major diameter curved surface centrifugation blade, it belongs to plastics and surpasses
Sound wave technical field of welding equipment.
Background technology
Centrifugation blade due to the features such as air quantity is big, wind speed is steady, noise is small, be in air-conditioning and other ventilating systems it is important
Building block.For the convenience for considering injection, the base and baffle liner of centrifugation blade are generally divided into two mouldings, base
Connected together by way of welding with baffle liner, the centrifugation blade welding manner of prior art includes sweat soldering and ultrasound
Wave soldering connects.Wherein, sweat soldering is eliminated as one kind gradually due to there is the not high deficiency of penetrating odor and weld strength
Welding manner, ultrasonic bonding, because speed of welding is fast, weld strength is high, is most widely used centrifugation blade welding at present
Mode.
Can directly be welded using a soldering tip during the less centrifugation blade of ultrasonic bonding diameter, then by once
Tempering heat treatment, you can reach preferably welding quality.However, the curved surface centrifugation blade for being relatively large in diameter uses a soldering tip
Cannot disposably be welded, generally using symmetrical expression welding major diameter curved surface centrifugation blade, but the welding of symmetrical expression welding
Inefficiency, welds the centrifugation blade of blade non complete symmetry, then due to welding stress and welding deformation using symmetrical expression in addition
Presence, blade of last welding is often difficult to preferably laminating, and so as to cause, weld strength is high, welding stress
Greatly, part rejection is even resulted in.Therefore, it is necessary to further improve.
The content of the invention
The purpose of the present invention aims to provide a kind of simple and reasonable, excellent performance, assembles quick, easy to operate, welding
Excellent in efficiency, weld strength are high, low cost of manufacture, easily production, easily realize and safe and reliable for major diameter curved surface centrifugation blade
Integral type ultrasonic welding machine, to overcome weak point of the prior art.
By a kind of integral type ultrasonic welding machine for major diameter curved surface centrifugation blade that this purpose is designed, including board
Base, workbench and major diameter curved surface centrifugation blade, workbench are arranged on board base, it is characterised in that：Work is flat
Centrifugation blade charging slide unit, soldering tip erecting bed and motor mount are provided with platform；It is provided with described motor mount and is watched
Take motor；Soldering tip fixed seat is provided with described soldering tip erecting bed, supersonic welding head assembly is provided with soldering tip fixed seat.
Several soldering tip fixed seats are provided with the soldering tip erecting bed, are respectively provided with several soldering tip fixed seats
Supersonic welding head assembly.
Soldering tip mounting seat fixed plate is provided with the soldering tip fixed seat, left and right is provided with soldering tip mounting seat fixed plate and is adjusted
Locking nub, front and rear regulating block and angle adjustment plate, supersonic welding head assembly are arranged in soldering tip mounting seat fixed plate, and are passed through respectively
Left and right adjusting block, front and rear regulating block and angle adjustment plate realize the regulation at right position, front and back position and angle of inclination.
The right position of the supersonic welding head assembly, front and back position regulation are respectively 0mm-80mm, angle of inclination regulation
It is 0 ° -90 °.
The supersonic welding head assembly includes soldering tip installing plate, cylinder, transducer, ultrasonic transformer, soldering tip and fixture；Its
In, soldering tip installing plate is arranged in soldering tip mounting seat fixed plate, and cylinder, transducer, ultrasonic transformer and soldering tip are fixed by fixture
It is arranged on soldering tip installing plate；Described transducer and soldering tip mating connection, ultrasonic transformer and cylinder mating connection, soldering tip and cylinder
Drive connection and ultrasonic energy is converted electrical energy into by transducer.
Screw mandrel is provided with the workbench, centrifugation blade charging slide unit is dovetail groove slide unit and is provided with silk
Bar sliding block, centrifugation blade charging slide unit is connected by screw mandrel sliding block with screw mandrel；Set flexible on described servomotor
Shaft coupling and by yielding coupling and screw mandrel drive connection；Described centrifugation blade charging slide unit passes through servomotor, elasticity
The routing motion of shaft coupling, screw mandrel and screw mandrel sliding block on workbench, so as to realize the charging of major diameter curved surface centrifugation blade
And discharging.
Centrifugation blade fixed plate is additionally provided with the centrifugation blade charging slide unit, major diameter curved surface centrifugation blade is placed on
In centrifugation blade fixed plate；Wherein, several profiling fixed blocks are inlaid with centrifugation blade fixed plate, profiling fixed block is according to big
The 3D shape of diametral surface centrifugation blade is processed using five axle CNC machines.
The major diameter curved surface centrifugation blade is processed by two mouldings of baffle liner and fan blade base.
The side of the baffle liner is curved surface；If fan blade base be arranged on baffle liner and be provided with rotary shaft and
Dry forward-type fan blade, fan blade base drives fan blade to rotate, air pressure energy is converted kinetic energy into, finally by sky by rotary shaft
Gas is discharged from radial direction；Several are additionally provided with described fan blade base is used to mitigate the location hole of fan blade quality.
The board base is four bolt and nut fit structures of adjustable-height formula, and workbench is arranged on board bottom
Height is adjusted on seat and by four cooperations of bolt and nut；Described workbench and soldering tip erecting bed is respectively section bar weldering
Connect and form.
The improvement that the present invention passes through said structure, it is some due to being provided with several soldering tip fixed seats on soldering tip erecting bed
Supersonic welding head assembly is respectively provided with individual soldering tip fixed seat, you can to realize the same of multiple major diameter curved surface centrifugation blades
When weld, while greatly improving welding efficiency, also efficiently solve that weld strength is uneven and the big problem of welding stress,
So as to improve production efficiency.With following beneficial effect：
1st, welding effect aspect, accurate firm, the generation chip of weld size of laser welding is few, airtight water-tight, table
Face stands intact, and compared with the connection methods such as cementing, thermofussion welding, greatly reduces vibration stress and thermal stress；
2nd, flexible aspect is welded, supersonic welding head assembly can realize the regulation at right position, front and back position and angle of inclination,
Effectively ensure that wave welding head of ultrasonic wave is preferably fitted with the baffle liner of major diameter curved surface centrifugation blade, so as to realize complex appearance system
The automatic welding of product；
3rd, operative aspect, it is simple to operate, safe and reliable, workman only need to by major diameter curved surface centrifugation blade be arranged on from
On heart fan blade charging slide unit, supersonic welding head assembly is opened, it is to be welded to finish workpiece blanking.
In terms of comprehensive, its have simple and reasonable, excellent performance, assemble quick, easy to operate, welding efficiency it is good, weldering
Connect intensity high, low cost of manufacture, easily production, easily realize and it is safe and reliable the features such as, it is practical.
Brief description of the drawings
Fig. 1 is the assembling structure schematic diagram of first embodiment of the invention.
Fig. 2 is the major diameter curved surface centrifugation blade structural representation of first embodiment of the invention.
Fig. 3 is the centrifugation blade fixed plate structure schematic diagram of first embodiment of the invention.
Fig. 4 is the centrifugation blade fixed plate cross section structure schematic diagram of first embodiment of the invention.
Fig. 5 illustrates for the supersonic welding head assembly of first embodiment of the invention with soldering tip mounting seat fixed plate assembling structure
Figure.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
Referring to Fig. 1-Fig. 5, this is used for the integral type ultrasonic welding machine of major diameter curved surface centrifugation blade, including board base
1st, workbench 2 and major diameter curved surface centrifugation blade, workbench 2 are arranged on board base 1, are provided with workbench 2
Centrifugation blade charging slide unit 3, soldering tip erecting bed 4 and motor mount 9；Servomotor is provided with described motor mount 9
8；Soldering tip fixed seat 5 is provided with described soldering tip erecting bed 4, supersonic welding head assembly 6 is provided with soldering tip fixed seat 5.
Further speaking, seven soldering tip fixed seats 5 are provided with soldering tip erecting bed 4, in seven soldering tip fixed seats 5 respectively
It is provided with supersonic welding head assembly 6.
Further speaking, board base 1 is four bolt and nut fit structures of adjustable-height formula, whole for supporting
The weight of ultrasonic welding machine, by adjusting the height of each screw rod so that workbench 2 is in level.
Further speaking, workbench 2 is arranged on board base 1 and for section bar is welded, after the completion of section bar welding
Welding stress is discharged through Wetted constructures, one layer of steel plate of 15mm is welded in section bar upper surface, finally carried out on planer-type milling machine
Amendment plane, it is ensured that the flatness and the depth of parallelism of the upper and lower surface of workbench 2.
Further speaking, screw mandrel is provided with workbench 2, centrifugation blade charging slide unit 3 is dovetail groove slide unit, effective row
Journey is 1 meter, and is provided with screw mandrel sliding block, and centrifugation blade charging slide unit 3 is connected by screw mandrel sliding block with screw mandrel, centrifugation
Centrifugation blade fixed plate 10 is additionally provided with fan blade charging slide unit 3, major diameter curved surface centrifugation blade is placed on centrifugation blade and fixes
On plate 10, centrifugation blade charging slide unit 3 can be not only used for the charging and discharging of major diameter curved surface centrifugation blade, and can hold
Pressure of the fan blade for centrifugation blade fixed plate 10 during by ultrasonic bonding.
Further speaking, soldering tip erecting bed 4 is welded for section bar, through the correction milling of Wetted constructures peace face, it is ensured that
The flatness and the depth of parallelism of the upper and lower surface of soldering tip erecting bed 4.
Further speaking, yielding coupling 7 is provided with servomotor 8 and is driven by yielding coupling 7 and screw mandrel and connected
Connect；The routing motion that described centrifugation blade charging slide unit 3 passes through servomotor 8, yielding coupling 7, screw mandrel and screw mandrel sliding block
On workbench 2, so as to realize the charging and discharging of major diameter curved surface centrifugation blade.
Further speaking, as shown in Fig. 2 the base diameter of major diameter curved surface centrifugation blade is 490mm, total height is
167mm, it is processed by 12 2 mouldings of baffle liner 11 and fan blade base.
Further speaking, the side of baffle liner 11 is curved surface, thereon a diameter of 354mm of ventilating opening, lower ventilating opening diameter
It is 490mm, is highly 54mm.Fan blade base 12 is arranged on baffle liner 11 and is provided with rotary shaft and seven forward-types
Fan blade, fan blade base 12 drives fan blade to rotate by rotary shaft, converts kinetic energy into air pressure energy, finally by air from radially
Discharge；Seven location holes for mitigating fan blade quality are additionally provided with described fan blade base 12.
Further speaking, as shown in Figure 3, Figure 4, seven profiling fixed blocks 19 are inlaid with centrifugation blade fixed plate 10, are imitated
Shape fixed block 19 is processed according to the 3D shape of major diameter curved surface centrifugation blade using five axle CNC machines.Profiling fixed block
19 realize preferably coordinating with the location hole below each blade of major diameter curved surface centrifugation blade, can accurately to major diameter
Curved surface centrifugation blade carries out circumferential registration, and profiling fixed block 19 can also be used for increasing the fan blade of major diameter curved surface centrifugation blade in addition
Rigidity, prevent fan blade from deforming under ultrasonic bonding pressure.
Further speaking, as shown in figure 5, being provided with soldering tip mounting seat fixed plate 13, soldering tip mounting seat in soldering tip fixed seat 5
Left and right adjusting block 15, front and rear regulating block 14 and angle adjustment plate 16 are provided with fixed plate 13, supersonic welding head assembly 6 is arranged on
In soldering tip mounting seat fixed plate 13, and a left side realized by left and right adjusting block 15, front and rear regulating block 14 and angle adjustment plate 16 respectively
The regulation at right position, front and back position and angle of inclination.
Further speaking, the right position of supersonic welding head assembly 6, front and back position regulation is respectively 0mm-80mm, inclines
Angular adjustment is 0 ° -90 °.Specifically, right position, front and back position regulation is respectively 0mm-40mm, and angle of inclination is adjusted to
0 ° -45 °, the soldering tip 18 that supersonic welding head assembly 6 can be effectively ensured preferably is fitted with baffle liner 11.
Further speaking, supersonic welding head assembly 6 includes soldering tip installing plate 17, cylinder, transducer, ultrasonic transformer, soldering tip 18
And fixture；Wherein, soldering tip installing plate 17 is arranged in soldering tip mounting seat fixed plate 13, cylinder, transducer, ultrasonic transformer and soldering tip
18 are fixedly installed on soldering tip installing plate 17 by fixture；Described transducer is connected with soldering tip 18, ultrasonic transformer and gas
Cylinder is connected, and soldering tip 18 is connected with air cylinder driven and converts electrical energy into ultrasonic energy by transducer.Specifically,
The drive that soldering tip 18 passes through cylinder, completes and the application of a surface of baffle liner 11, then convert electrical energy into ultrasonic wave by transducer
Energy, then by transfer of ultrasonic energy to baffle liner 11 and the contact site of blade, produces certain heat to make baffle liner 11
With the plastic molting at blade contact position, last pressurize completion welding afterwards for a period of time.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of this area
Personnel should be recognized that the present invention is not limited to the above embodiments, and simply this hair is illustrated described in above-described embodiment and specification
Bright principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
Be all fall within the protetion scope of the claimed invention with improvement.The claimed scope of the invention is by appending claims and its waits
Jljl is defined.
Claims (10)
1. a kind of integral type ultrasonic welding machine for major diameter curved surface centrifugation blade, including board base (1), workbench
(2) and major diameter curved surface centrifugation blade, workbench (2) is arranged on board base (1), it is characterised in that：Workbench (2)
On be provided with centrifugation blade and feed slide unit (3), soldering tip erecting bed (4) and motor mount (9)；Described motor mount (9)
On be provided with servomotor (8)；Soldering tip fixed seat (5) is provided with described soldering tip erecting bed (4), in soldering tip fixed seat (5)
It is provided with supersonic welding head assembly (6).
2. the integral type ultrasonic welding machine of major diameter curved surface centrifugation blade is used for according to claim 1, it is characterised in that：
Several soldering tip fixed seats (5) are provided with the soldering tip erecting bed (4), are respectively set in several soldering tip fixed seats (5)
There is supersonic welding head assembly (6).
3. the integral type ultrasonic welding machine of major diameter curved surface centrifugation blade is used for according to claim 2, it is characterised in that：
Soldering tip mounting seat fixed plate (13) is provided with the soldering tip fixed seat (5), a left side is provided with soldering tip mounting seat fixed plate (13)
Right regulating block (15), front and rear regulating block (14) and angle adjustment plate (16), supersonic welding head assembly (6) are arranged on soldering tip mounting seat
In fixed plate (13), and realized by left and right adjusting block (15), front and rear regulating block (14) and angle adjustment plate (16) respectively or so
The regulation at position, front and back position and angle of inclination.
4. the integral type ultrasonic welding machine of major diameter curved surface centrifugation blade is used for according to claim 3, it is characterised in that：
The right position of the supersonic welding head assembly (6), front and back position regulation are respectively 0mm-80mm, angle of inclination be adjusted to 0 °-
90°。
5. the integral type ultrasonic welding machine of major diameter curved surface centrifugation blade is used for according to claim 4, it is characterised in that：
The supersonic welding head assembly (6) includes soldering tip installing plate (17), cylinder, transducer, ultrasonic transformer, soldering tip (18) and fixture；
Wherein, soldering tip installing plate (17) is arranged in soldering tip mounting seat fixed plate (13), cylinder, transducer, ultrasonic transformer and soldering tip (18)
It is fixedly installed on soldering tip installing plate (17) by fixture；Described transducer is connected with soldering tip (18), ultrasonic transformer with
Cylinder is connected, and soldering tip (18) is connected with air cylinder driven and converts electrical energy into ultrasonic energy by transducer.
6. the integral type ultrasonic welding machine of major diameter curved surface centrifugation blade is used for according to claim 5, it is characterised in that：
Screw mandrel is provided with the workbench (2), centrifugation blade feeds slide unit (3) for dovetail groove slide unit and is provided with screw mandrel
Sliding block, centrifugation blade is fed slide unit (3) and is connected by screw mandrel sliding block and screw mandrel；It is provided with described servomotor (8)
Yielding coupling (7) and by yielding coupling (7) and screw mandrel drive connection；Described centrifugation blade feeds slide unit (3) and passes through
The routing motion of servomotor (8), yielding coupling (7), screw mandrel and screw mandrel sliding block is on workbench (2), so as to realize big
The charging and discharging of diametral surface centrifugation blade.
7. the integral type ultrasonic welding machine of major diameter curved surface centrifugation blade is used for according to claim 6, it is characterised in that：
The centrifugation blade to feed and be additionally provided with centrifugation blade fixed plate (10) on slide unit (3), and major diameter curved surface centrifugation blade is placed on
In centrifugation blade fixed plate (10)；Wherein, several profiling fixed blocks (19), profiling are inlaid with centrifugation blade fixed plate (10)
Fixed block (19) is processed according to the 3D shape of major diameter curved surface centrifugation blade using five axle CNC machines.
8. the integral type ultrasonic welding machine of major diameter curved surface centrifugation blade is used for according to claim any one of 1-7, its
It is characterised by：The major diameter curved surface centrifugation blade is processed by (12) two mouldings of baffle liner (11) and fan blade base.
9. the integral type ultrasonic welding machine of major diameter curved surface centrifugation blade is used for according to claim 8, it is characterised in that：
The side of the baffle liner (11) is curved surface；Fan blade base (12) is arranged on baffle liner (11) and is provided with rotary shaft
With several forward-type fan blades, fan blade base (12) by rotary shaft drive fan blade rotate, convert kinetic energy into air pressure energy,
Finally air is discharged from radial direction；Several are additionally provided with described fan blade base (12) is used to mitigate the positioning of fan blade quality
Hole.
10. the integral type ultrasonic welding machine of major diameter curved surface centrifugation blade is used for according to claim 1, and its feature exists
In：The board base (1) is four bolt and nut fit structures of adjustable-height formula, and workbench (2) is arranged on board
Height is adjusted on base (1) and by four cooperations of bolt and nut；Described workbench (2) and soldering tip erecting bed (4) point
Not for section bar is welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214476.9A CN106903419A (en) | 2017-04-01 | 2017-04-01 | A kind of integral type ultrasonic welding machine for major diameter curved surface centrifugation blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214476.9A CN106903419A (en) | 2017-04-01 | 2017-04-01 | A kind of integral type ultrasonic welding machine for major diameter curved surface centrifugation blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106903419A true CN106903419A (en) | 2017-06-30 |
Family
ID=59195529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710214476.9A Pending CN106903419A (en) | 2017-04-01 | 2017-04-01 | A kind of integral type ultrasonic welding machine for major diameter curved surface centrifugation blade |
Country Status (1)
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| CN (1) | CN106903419A (en) |
Cited By (5)
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| CN107584202A (en) * | 2017-11-03 | 2018-01-16 | 东莞市锐祥智能卡科技有限公司 | A kind of smart card intermediate layer pot welding machine |
| CN108000064A (en) * | 2017-11-30 | 2018-05-08 | 重庆徐丁科技有限公司 | A kind of welding procedure of foot pedal of motorcycle |
| CN109822239A (en) * | 2019-03-14 | 2019-05-31 | 广东顺德华焯机械科技有限公司 | A kind of new energy battery case synchronous welding component |
| CN112388214A (en) * | 2019-08-19 | 2021-02-23 | 中集安瑞环科技股份有限公司 | Double-gun welding equipment for cylinder reinforcing ring |
| CN114700663A (en) * | 2022-04-07 | 2022-07-05 | 铭爵(南通)智能制造有限公司 | Multistation welded connection seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584202A (en) * | 2017-11-03 | 2018-01-16 | 东莞市锐祥智能卡科技有限公司 | A kind of smart card intermediate layer pot welding machine |
| CN108000064A (en) * | 2017-11-30 | 2018-05-08 | 重庆徐丁科技有限公司 | A kind of welding procedure of foot pedal of motorcycle |
| CN108000064B (en) * | 2017-11-30 | 2019-11-29 | 重庆徐丁科技有限公司 | A kind of welding procedure of foot pedal of motorcycle |
| CN109822239A (en) * | 2019-03-14 | 2019-05-31 | 广东顺德华焯机械科技有限公司 | A kind of new energy battery case synchronous welding component |
| CN112388214A (en) * | 2019-08-19 | 2021-02-23 | 中集安瑞环科技股份有限公司 | Double-gun welding equipment for cylinder reinforcing ring |
| CN114700663A (en) * | 2022-04-07 | 2022-07-05 | 铭爵(南通)智能制造有限公司 | Multistation welded connection seat |
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Application publication date: 20170630 |