CN106735810A - Automatic butt-welding device - Google Patents

Automatic butt-welding device Download PDF

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Publication number
CN106735810A
CN106735810A CN201611211470.8A CN201611211470A CN106735810A CN 106735810 A CN106735810 A CN 106735810A CN 201611211470 A CN201611211470 A CN 201611211470A CN 106735810 A CN106735810 A CN 106735810A
Authority
CN
China
Prior art keywords
weld
cylinder
turntable
clamping
fixed
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.)
Pending
Application number
CN201611211470.8A
Other languages
Chinese (zh)
Inventor
吴倩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI TAERJI HEAT EXCHANGER TECHNOLOGY Co Ltd
Original Assignee
WUXI TAERJI HEAT EXCHANGER TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WUXI TAERJI HEAT EXCHANGER TECHNOLOGY Co Ltd filed Critical WUXI TAERJI HEAT EXCHANGER TECHNOLOGY Co Ltd
Priority to CN201611211470.8A priority Critical patent/CN106735810A/en
Publication of CN106735810A publication Critical patent/CN106735810A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00Resistance welding; Severing by resistance heating
    • B23K11/02Pressure butt welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00Resistance welding; Severing by resistance heating
    • B23K11/30Features relating to electrodes
    • B23K11/31Electrode holders and actuating devices therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00Resistance welding; Severing by resistance heating
    • B23K11/36Auxiliary equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • B23K2101/14Heat exchangers

Abstract

The present invention relates to a kind of butt-weld device, especially automatic butt-welding device, including turntable, clamping device, weld jig, rotating driving device, mechanical arm and butt-weld device;The turntable is movably arranged on rotary stand, turntable is connected with rotating driving device, rotating driving device is rotated platform rotation, the clamping device is installed on a spinstand, gripping means grips weld jig, weld jig clamps weld assembly, and the mechanical arm is located at the side of rotary stand, and butt-weld device is housed on mechanical arm.The automatic butt-welding plant automation degree for providing of the invention is high, applied widely, the convenient and swift, welding efficiency of weld jig replacing is high, welding quality is good.

Description

Automatic butt-welding device
Technical field
The present invention relates to a kind of butt-weld device, especially automatic butt-welding device.
Background technology
Outer cover of heat exchanger is cuboid, and bump joint of the two ends equipped with hemispherical dome, bump joint is needed with outer cover of heat exchanger Several points are first welded, bump joint is fixed with outer cover of heat exchanger, joint filling weldering is then carried out by high temperature melting nano-nickel powder Connect.Existing mode uses TIG(The protection weldering of non-melt pole inert gas tungsten electrode)Welding is fixed, but carries out TIG in product During weldering, either manual welding or machine is welded, and all can cause burn-through because product mother metal wall thickness in itself is thin, produces report It is useless many, increase production cost, it is therefore desirable to change welding manner.Because each heat exchanger is required for positive and negative welding, workload is big, Manual welding efficiency is too low, and machine welding is also required to manually overturn heat exchanger, and heat exchanger species is more, it is necessary to a large amount of different Frock clamp, high cost, improved efficiency it is limited.
The content of the invention
To solve the above problems, the present invention provides a kind of automatic butt-welding device for being difficult burn-through, Full-automatic welding, by copper Electrode pair bump joint carries out pressurization fusion welding with outer cover of heat exchanger, and concrete technical scheme is:
Automatic butt-welding device, including turntable, clamping device, weld jig, rotating driving device, mechanical arm and butt-weld device; The turntable is movably arranged on rotary stand, and turntable is connected with rotating driving device, and rotating driving device is rotated Platform is rotated, and the clamping device is installed on a spinstand, and gripping means grips weld jig, weld jig clamps weld assembly, The mechanical arm is located at the side of rotary stand, and butt-weld device is housed on mechanical arm.
The two ends of the turntable are equipped with rotary shaft, and rotary shaft is arranged on bearing block, and bearing block is fixed on rotary stand Top, the rotary shaft is connected with rotating driving device, and the turntable rotates around rotary shaft.
The rotation driving equipment includes tooth bar, gear and rotary cylinder;The gear is fixed on the rotary shaft, the tooth Bar is movably arranged on gear lower section, and rack and pinion engagement, one end of tooth bar is connected with the piston rod of rotary cylinder, the rotation Cylinder is fixed on rotary stand.
The rotating driving device includes motor and speed reducer, and the reductor is connected with motor and rotary shaft respectively.
The clamping device includes clamping cylinder, connecting plate and pressing plate;One end of the pressing plate is provided with hold-down apertures, the other end Pressure head is provided with, centre is provided with connecting hole, and the pressure head is pressed on weld jig;The clamping cylinder is provided with four, symmetrical fixed On a spinstand, bottom plate is housed, the bottom plate is provided with connecting hole, the clamping of the clamping cylinder on clamping cylinder The end of piston rod connects fixed board equipped with pressing plate, and the press plate connection board is flexibly connected by axle with the hold-down apertures of pressing plate, the company One end of fishplate bar is flexibly connected by the connecting hole in the middle of axle and pressing plate, and the other end of connecting plate is by axle and the company of bottom plate Connect hole flexible connection;The pressing plate is compressed on a spinstand weld jig by clamping cylinder.
The weld jig bottom is provided with four clamp connecting plates, and the clamping connecting plate is symmetrically fixed on weld jig Bottom, the pressure head is pressed on clamping connecting plate.
The weld assembly is located at the center of weld jig, and positioned at the surface of rotary shaft.
The butt-weld device includes weld cylinder, push pedal, pressure regulator valve and resistance soldering tip;The resistance soldering tip is fixed on push pedal On, the push pedal is fixed in weld cylinder, and the weld cylinder is fixed on the top of weld holder, and the weld holder is fixed on machine The end of tool arm;Guide rail is provided with inside the weld holder, the push pedal is located inside weld holder, and is pacified by linear bearing activity On guide rail;The pressure regulator valve is connected with weld cylinder.
The resistance soldering tip is provided with two, is symmetrically fixed in push pedal.
Turntable can 360 degree rotation, when heat exchanger is installed on turntable by weld jig, mechanical arm drive weldering One face of connection device heat exchanging is welded, and then turntable rotation 180 degree, facilitates another face of mechanical arm heat exchanging device to enter Row welding.
Weld cylinder is housed, weld cylinder provides thrust during welding, and the size of thrust is by adjusting on welder Pressure valve is adjusted.Resistance soldering tip is connected by push pedal with weld cylinder, and push pedal is movably arranged on guide rail by linear bearing, Be delivered to the radial load being subject to when welding on guide rail by push pedal, protects weld cylinder.
Mechanical arm has six-freedom degree, can be with free movement, and mechanical arm drives welder backward when turntable rotates It is mobile, prevent interference, rotation from completing, mechanical arm moves to weld assembly top and is welded, registration, and can be according to stress Change holding position is constant, is pressurizeed during convenient welding.
Rotating driving device realizes rotation using rotary cylinder band carry-over bar, rack drives gear, gear driven rotary shaft, Due to generally carrying out positive and negative welding, it is only necessary to rotate 180 degree, therefore use cylinder, it is only necessary to use the initial of cylinder State and piston reach the state of range, and structure is relatively easy, low cost, rotary speed are fast.
Some heat exchangers need four faces all to weld, and at this moment rotating driving device uses motor and speed reducer, can set It is arbitrarily angled, and multiple off-position points are set, improve the use scope of automatic butt-welding device.
Weld jig is manufactured according to different design of heat exchanger, but all uses same clamp connecting plate, and fixture to connect Installation site of the fishplate bar in weld jig bottom is identical, facilitates weld jig to be installed on turntable.It is equipped with weld jig Cylinder, carries out automated exchanged cutter.
Grip device provides clamping force by four clamp cylinders, with changing during weld jig, opens clamping cylinder, finishes changing weldering Welding fixture, closes clamping cylinder, and weld jig is compressed on a spinstand, very easy to use, it is not necessary to carry out cumbersome dress Unload.
Weld assembly is located at the center of weld jig, and in the surface of rotary shaft, reduces what is formed during welding Eccentric moment, turntable position does not change when advantageously ensuring that welding, improves welding quality.
Resistance soldering tip it is symmetrical be provided with two, can once weld two solder joints, welding efficiency is high.
During work, according to heat exchanger model, related weld jig is selected.Turntable is in horizontality, starts and clamps Cylinder, the clamping piston bar of clamp cylinder is retracted, and the one end of piston rod fixed plate with dynamic pressure plate of clamping piston bar end is downward Mobile, the pressure head of the pressing plate other end is lifted.Because connecting plate and bottom plate and pressing plate are flexibly connected by axle, clamping Pressing plate is overall when piston rod is retracted moves to clamping piston bar, facilitates the installation or removal of weld jig.Place weld jig, Start clamp cylinder, clamping piston bar is moved up, band dynamic pressure plate compresses weld jig.Weld jig is quick, convenient with changing.
Model according to heat exchanger adjusts the pressure of pressure regulator valve, there is provided suitable welding pressure.
Corresponding welding procedure is selected in the controls, weld assembly is placed on weld jig, on weld jig Cylinder start, clamp weld assembly, mechanical arm drive welder move to weld assembly top, weld cylinder start, will Resistance soldering tip is pressed on weld assembly, and mechanical arm holding position is constant, and weld cylinder provides thrust, and resistance soldering tip is welded Connect, welding is completed, mechanical arm drives welder movement, the another of weld jig faces up, mechanical arm drives weld assembly to move Weld assembly top is moved, is welded.Welding is completed, and mechanical arm drives welder movement, avoids weld jig and rotation The rotating range of platform, rotary cylinder starts, and turntable is turned into horizontality, and the cylinder on weld jig starts, and unclamps weldering Connected components.
Compared with prior art the invention has the advantages that:
The automatic butt-welding plant automation degree for providing of the invention is high, applied widely, weld jig changes convenient and swift, welding Efficiency high, welding quality are good.
Brief description of the drawings
Fig. 1 is front view of the invention;
Fig. 2 is left view of the invention.
Specific embodiment
In conjunction with brief description of the drawings specific embodiment of the invention.
As depicted in figs. 1 and 2, automatic butt-welding device, including turntable 3, clamping device, weld jig, rotation driving dress Put, mechanical arm 6 and butt-weld device;The turntable 3 is movably arranged on rotary stand 1, and turntable 3 connects with rotating driving device Connect, rotating driving device is rotated platform 3 and rotates, the clamping device is arranged on turntable 3, gripping means grips weld clip Tool, weld jig clamps weld assembly, and the mechanical arm is located at the side of rotary stand 1, and butt-weld device is housed on mechanical arm.
The two ends of the turntable 3 are equipped with rotary shaft 44, and rotary shaft 44 is arranged on bearing block 2, and bearing block 2 is fixed on rotation The top of turntable frame 1, the rotary shaft 44 is connected with rotating driving device, and the turntable 3 rotates around rotary shaft 44.
The rotation driving equipment includes tooth bar 41, gear 42 and rotary cylinder 43;The gear 42 is fixed on rotary shaft On 44, the tooth bar 41 is movably arranged on the lower section of gear 42, and tooth bar 41 is engaged with gear 42, one end of tooth bar 41 and rotary cylinder 43 piston rod connection, the rotary cylinder 43 is fixed on rotary stand 1.
The clamping device includes clamping cylinder, connecting plate 54 and pressing plate 53;One end of the pressing plate 53 is provided with hold-down apertures, The other end is provided with pressure head, and centre is provided with connecting hole, and the pressure head is pressed on weld jig;The clamping cylinder is provided with four, right Title is fixed on turntable 3, and bottom plate 55 is housed on clamping cylinder, and the bottom plate 55 is provided with connecting hole, the folder The end of the clamping piston bar 51 of tight cylinder connects fixed board 52 equipped with pressing plate, and the press plate connection board 52 is by axle and the pressure of pressing plate 53 Tieholen is flexibly connected, and one end of the connecting plate 54 is flexibly connected by the connecting hole in the middle of axle and pressing plate 53, connecting plate 54 The other end is flexibly connected by axle with the connecting hole of bottom plate 55;The pressing plate 53 is compressed weld jig by clamping cylinder On turntable 3.
The weld jig bottom is provided with four clamp connecting plates, and the clamping connecting plate is symmetrically fixed on weld jig Bottom, the pressure head is pressed on clamping connecting plate.
The weld assembly is located at the center of weld jig, and positioned at the surface of rotary shaft 44.
The butt-weld device includes weld cylinder 71, push pedal 73, pressure regulator valve and resistance soldering tip 74;The resistance soldering tip 74 is consolidated It is scheduled in push pedal 73, the push pedal 73 is fixed in weld cylinder 71, the weld cylinder 71 is fixed on the top of weld holder 75, The weld holder 75 is fixed on the end of mechanical arm;Guide rail 72 is provided with inside the weld holder 75, the push pedal 73 is located at welding Inside frame 75, and it is movably arranged on guide rail 72 by linear bearing;The pressure regulator valve is connected with weld cylinder 71.
The resistance soldering tip 74 is provided with two, is symmetrically fixed in push pedal 73.
During work, according to heat exchanger model, related weld jig is selected.Turntable is in horizontality, starts and clamps Cylinder, the clamping piston bar 51 of clamp cylinder is retracted, and the piston rod fixed plate 52 of the end of clamping piston bar 51 is with dynamic pressure plate 53 One end is moved down, and the pressure head of the other end of pressing plate 53 is lifted.Because connecting plate 54 passes through with bottom plate 55 and pressing plate 53 Axle is flexibly connected, and when clamping piston bar 51 is retracted, pressing plate 53 is overall moves to clamping piston bar 51, facilitates the peace of weld jig Dress is dismantled.Place weld jig, start clamp cylinder, clamping piston bar 51 is moved up, band dynamic pressure plate 53 is by weld clip Tool is compressed.Weld jig is quick, convenient with changing.
Model according to heat exchanger adjusts the pressure of pressure regulator valve, there is provided suitable welding pressure.
Corresponding welding procedure is selected in the controls, weld assembly is placed on weld jig, on weld jig Cylinder start, clamp weld assembly, mechanical arm drives welder to move to weld assembly top, and weld cylinder 71 starts, Resistance soldering tip 74 is pressed on weld assembly, mechanical arm holding position is constant, weld cylinder provides thrust, resistance soldering tip 74 enters Row welding, welding is completed, and mechanical arm drives welder movement, and the another of weld jig faces up, and mechanical arm drives welding group Part moves to weld assembly top, is welded.Welding complete, mechanical arm drive welder movement, avoid weld jig and The rotating range of turntable 3, rotary cylinder starts, and turntable 3 is turned into horizontality, and the cylinder on weld jig starts, Unclamp weld assembly.

Claims (9)

1. automatic butt-welding device, it is characterised in that including turntable(3), clamping device, weld jig, rotating driving device, machine Tool arm(6)And butt-weld device;The turntable(3)It is movably arranged on rotary stand(1)On, turntable(3)Filled with rotation driving Connection is put, rotating driving device is rotated platform(3)Rotation, the clamping device is arranged on turntable(3)On, clamping device folder Tight weld jig, weld jig clamps weld assembly, and the mechanical arm is located at rotary stand(1)Side, be equipped with mechanical arm Butt-weld device.
2. automatic butt-welding device according to claim 1, it is characterised in that the turntable(3)Two ends equipped with rotation Axle(44), rotary shaft(44)Installed in bearing block(2)On, bearing block(2)It is fixed on rotary stand(1)Top, the rotation Axle(44)It is connected with rotating driving device, the turntable(3)Around rotary shaft(44)Rotation.
3. automatic butt-welding device according to claim 1 and 2, it is characterised in that the rotation driving equipment includes tooth bar (41), gear(42)And rotary cylinder(43);The gear(42)It is fixed on rotary shaft(44)On, the tooth bar(41)Activity peace Mounted in gear(42)Lower section, tooth bar(41)With gear(42)Engagement, tooth bar(41)One end and rotary cylinder(43)Piston rod Connection, the rotary cylinder(43)It is fixed on rotary stand(1)On.
4. automatic butt-welding device according to claim 1 and 2, it is characterised in that the rotating driving device includes motor And reductor, the reductor respectively with motor and rotary shaft(44)Connection.
5. automatic butt-welding device according to claim 1, it is characterised in that the clamping device includes clamping cylinder, even Fishplate bar(54)And pressing plate(53);The pressing plate(53)One end be provided with hold-down apertures, the other end is provided with pressure head, and centre is provided with connection Hole, the pressure head is pressed on weld jig;The clamping cylinder is provided with four, is symmetrically fixed on turntable(3)On, clamping cylinder It is upper that bottom plate is housed(55), the bottom plate(55)It is provided with connecting hole, the clamping piston bar of the clamping cylinder(51) End connect fixed board equipped with pressing plate(52), the press plate connection board(52)By axle and pressing plate(53)Hold-down apertures be flexibly connected, The connecting plate(54)One end pass through axle and pressing plate(53)Middle connecting hole is flexibly connected, connecting plate(54)The other end lead to Cross axle and bottom plate(55)Connecting hole be flexibly connected;The pressing plate(53)Weld jig is pressed on by rotation by clamping cylinder Turntable(3)On.
6. automatic butt-welding device according to claim 5, it is characterised in that the weld jig bottom is provided with four fixtures Connecting plate, the clamping connecting plate is symmetrically fixed on the bottom of weld jig, and the pressure head is pressed on clamping connecting plate.
7. automatic butt-welding device according to claim 6, it is characterised in that the weld assembly is located in weld jig Heart position, and positioned at rotary shaft(44)Surface.
8. automatic butt-welding device according to claim 1, it is characterised in that the butt-weld device includes weld cylinder (71), push pedal(73), pressure regulator valve and resistance soldering tip(74);The resistance soldering tip(74)It is fixed on push pedal(73)On, the push pedal (73)It is fixed on weld cylinder(71)On, the weld cylinder(71)It is fixed on weld holder(75)Top, the weld holder (75)It is fixed on the end of mechanical arm;The weld holder(75)Inside is provided with guide rail(72), the push pedal(73)Positioned at weld holder (75)Inside, and guide rail is movably arranged on by linear bearing(72)On;The pressure regulator valve and weld cylinder(71)Connection.
9. automatic butt-welding device according to claim 1, it is characterised in that the resistance soldering tip(74)It is provided with two, it is right Title is fixed on push pedal(73)On.
CN201611211470.8A 2016-12-25 2016-12-25 Automatic butt-welding device Pending CN106735810A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611211470.8A CN106735810A (en) 2016-12-25 2016-12-25 Automatic butt-welding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611211470.8A CN106735810A (en) 2016-12-25 2016-12-25 Automatic butt-welding device

Publications (1)

Publication Number Publication Date
CN106735810A true CN106735810A (en) 2017-05-31

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ID=58919996

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611211470.8A Pending CN106735810A (en) 2016-12-25 2016-12-25 Automatic butt-welding device

Country Status (1)

Country Link
CN (1) CN106735810A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108788417A (en) * 2018-06-25 2018-11-13 深圳市冠华珠宝有限公司 A kind of butt-welding machine producing karat gold product
CN111069839A (en) * 2019-11-15 2020-04-28 中建材轻工业自动化研究所有限公司 Positioning rotary position changing device
CN112388132A (en) * 2020-11-02 2021-02-23 佛山市顺德区赛恩特实业有限公司 Multi-station feeding automatic butt-welding device for silencer flange and use butt-welding method thereof
CN112570872A (en) * 2019-09-29 2021-03-30 深圳瀚川自动化科技有限公司 Rotating disc type resistance welding mechanism

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CN205363141U (en) * 2015-10-29 2016-07-06 广州瑞松科技有限公司 Little welding system of stand robot
CN106077926A (en) * 2016-06-30 2016-11-09 安徽安耐捷新能源科技有限公司 A kind of system of batch welding battery electrode
CN206373475U (en) * 2016-12-25 2017-08-04 无锡塔尔基热交换器科技有限公司 Automatic butt-welding device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2813181Y (en) * 2005-06-20 2006-09-06 比亚迪股份有限公司 Butt-joint machine
CN201089074Y (en) * 2007-07-25 2008-07-23 比亚迪股份有限公司 Turnable weld jig
CN202137524U (en) * 2011-06-10 2012-02-08 苏州华亚电讯设备有限公司 Robot welding tool positioning device
CN203254054U (en) * 2013-04-02 2013-10-30 陈丹晔 Power battery welding head
CN204035829U (en) * 2014-08-12 2014-12-24 广州德恒汽车装备科技有限公司 Servo double-sided jig
KR101634159B1 (en) * 2015-02-16 2016-06-29 주식회사 우진엠엔디 Welding jig working system and semi-automatic welding system using the same
CN205363141U (en) * 2015-10-29 2016-07-06 广州瑞松科技有限公司 Little welding system of stand robot
CN105562907A (en) * 2016-03-10 2016-05-11 柳州市楷都汽车零部件有限公司 Clamping device for part with bent section
CN106077926A (en) * 2016-06-30 2016-11-09 安徽安耐捷新能源科技有限公司 A kind of system of batch welding battery electrode
CN206373475U (en) * 2016-12-25 2017-08-04 无锡塔尔基热交换器科技有限公司 Automatic butt-welding device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108788417A (en) * 2018-06-25 2018-11-13 深圳市冠华珠宝有限公司 A kind of butt-welding machine producing karat gold product
CN112570872A (en) * 2019-09-29 2021-03-30 深圳瀚川自动化科技有限公司 Rotating disc type resistance welding mechanism
CN111069839A (en) * 2019-11-15 2020-04-28 中建材轻工业自动化研究所有限公司 Positioning rotary position changing device
CN112388132A (en) * 2020-11-02 2021-02-23 佛山市顺德区赛恩特实业有限公司 Multi-station feeding automatic butt-welding device for silencer flange and use butt-welding method thereof

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