CN106041291B - A kind of copper strips or copper alloy belt Welding Method & Equipment - Google Patents
A kind of copper strips or copper alloy belt Welding Method & Equipment Download PDFInfo
- Publication number
- CN106041291B CN106041291B CN201610636838.9A CN201610636838A CN106041291B CN 106041291 B CN106041291 B CN 106041291B CN 201610636838 A CN201610636838 A CN 201610636838A CN 106041291 B CN106041291 B CN 106041291B
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- Prior art keywords
- copper
- copper alloy
- agitating friction
- rack
- vertical shift
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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
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1265—Non-butt welded joints, e.g. overlap-joints, T-joints or spot welds
-
- 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
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
-
- 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
- B23K2101/16—Bands or sheets of indefinite length
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/12—Copper or alloys thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
A kind of copper strips or copper alloy belt welding method, by the docking Chong Die with the head of another section of copper/copper alloy band of the tail portion of one section of copper/copper alloy band, region is docked in the overlapping of two sections of copper/copper alloy bands, if doing upper progress agitating friction weldering to which two sections of copper/copper alloy bands be connected.A kind of agitating friction soldering equipment of copper/copper alloy band, including rack, rack have a workbench, and the rack at workbench rear is equipped with installation crossbeam, install and are slidably equipped with transverse moving left and right sliding block on crossbeam；Transverse moving left and right sliding block is equipped with lifting slider；Lifting slider is equipped with rotation drive device, and output end is equipped with agitating friction soldering tip；The top of workbench, which is equipped with, compresses table top, lateral through slot is also provided on the compression table top, agitating friction soldering tip is directed at through slot.The present invention carries out spot welding to copper strips or copper alloy belt by the way of agitating friction weldering, and the mode of this cold welding will not generate oxidation to copper strips or copper alloy belt and welding effect is secured.
Description
Technical field
The present invention relates to a kind of copper strips or copper alloy belt Welding Method & Equipment.
Background technique
Copper strips or copper alloy belt generally use the form of coiled material during sale, it is therefore desirable to by relatively short copper
Band or copper alloy belt weld to form long copper strips or copper alloy belt and be rolled into coiled material.In the prior art, copper strips or copper close
The welding of gold ribbon uses traditional welding manner, and welding effect is poor, copper strips or copper alloy belt are also easy to produce oxidative phenomena.
Summary of the invention
In order to overcome the above-mentioned deficiency of existing copper band or copper alloy belt welding method, the present invention provides a kind of to be rubbed using stirring
The copper strips or copper alloy belt welding method of weldering are wiped, and the equipment for realizing this kind of method is provided.
The present invention the technical solution to solve the technical problem is that: a kind of copper strips or copper alloy belt welding method, by one section of copper
The tail portion of band or copper alloy belt is Chong Die with the head of another section of copper strips or copper alloy belt to dock, in two sections of copper strips or copper alloy belt
Overlapping docking region, if doing upper progress agitating friction weldering to which two sections of copper strips or copper alloy belt be connected.
Further, the pad that agitating friction welds is in line or parallel several rows.
The agitating friction soldering equipment of a kind of copper strips or copper alloy belt, including rack, the rack have a workbench,
The rack at the workbench rear is equipped with installation crossbeam, and the installation crossbeam is equipped with transverse moving left and right sliding rail, described
Transverse moving left and right sliding block, the transverse moving left and right sliding block and the transverse moving left and right for driving it to move are slidably equipped on transverse moving left and right sliding rail
Driving mechanism connection；
The transverse moving left and right sliding block is equipped with vertical lifting sliding rail, and the lifting sliding rail is equipped with lifting slider,
The lifting slider is connect with the lift drive mechanism for driving it to go up and down；
The lifting slider is equipped with rotation drive device, and the output end of the rotation drive device is equipped with agitating friction
Soldering tip；
The top of the workbench, which is equipped with, compresses table top, and the compression table top drives with the table top for driving it to go up and down
Dynamic device connects, and lateral through slot, the agitating friction soldering tip alignment through slot are also provided on the compression table top.
Further, the through slot has a plurality of, and a plurality of through slot is parallel to each other；The installation crossbeam is set to a front and back
On vertical shift frame, the rack is equipped with front and back vertical shift slide rail, and the front and back vertical shift is set up in the front and back vertical shift slide rail
On, the front and back vertical shift frame is connect with the vertical shift driving mechanism for driving it to be moved forward and backward.
Further, the transverse moving left and right driving mechanism are as follows: the transverse moving left and right sliding block is equipped with vertically arranged cross
Driving motor is moved, the installation crossbeam is equipped with lateral rack gear, and the output shaft of the traversing driving motor is equipped with gear, institute
The gear stated is engaged with the rack gear.
Further, the lift drive mechanism are as follows: the transverse moving left and right sliding block is equipped with vertically arranged lifting and drives
The output shaft of dynamic motor, the lifting driving motor is connected with elevating screw, and the lifting slider is threaded through the lifting
On screw rod.
Further, the table top driving device are as follows: the rack is equipped with vertically arranged lifting cylinder, the pressure
The both ends of tight table top are connect with the output end of the lifting cylinder respectively.
Further, the vertical shift driving mechanism are as follows: the rack is equipped with the longitudinally disposed vertical shift in front and back and drives electricity
Machine, the output shaft of the vertical shift driving motor are connected with vertical shift screw rod, and the front and back vertical shift frame is threaded through the vertical shift silk
On bar.
Further, the output end of the rotation drive device is equipped with elastic collet；In the rack of the workbench side
Equipped with index table, the stage body of the index table is equipped with one and encloses several clamping opening；The upper end of the agitating friction soldering tip has
There is clamping part, the middle part of the agitating friction soldering tip is equipped with the portion of holding of putting, and the clamping part can be clamped at the elastic clip
In head, the described portion of holding of putting can be sandwiched in the clamping opening, and the rack is equipped with a school knife position sensor.
Further, the elastic collet is pneumatic chuck, is equipped in the clamping opening and shelves piece, the portion of holding of putting is set
There is the slot of shelving of indent, the piece of shelving can be inserted into described shelve in slot.
The beneficial effects of the present invention are: by the way of agitating friction weldering spot welding is carried out to copper strips or copper alloy belt, from
And copper strips or copper alloy belt are connected, the mode of this cold welding copper strips or copper alloy belt will not be generated oxidation and
Welding effect is secured.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram for compressing table top.
Fig. 3 is the structural schematic diagram of agitating friction soldering tip.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description.
Referring to Fig.1, Fig. 2, Fig. 3, a kind of copper strips or copper alloy belt welding method, by the tail portion of one section of copper strips or copper alloy belt
Docking Chong Die with the head of another section of copper strips or copper alloy belt docks region in the overlapping of two sections of copper strips or copper alloy belt, if
It does and carries out agitating friction weldering to which two sections of copper strips or copper alloy belt be connected.The pad of agitating friction weldering can be lined up
A line or parallel several rows.
The agitating friction soldering equipment of a kind of copper strips or copper alloy belt, including rack 1, the rack 1 have a job flat
Platform 2, the rack at 2 rear of workbench are equipped with installation crossbeam 3, and the installation crossbeam 3 is equipped with transverse moving left and right sliding rail
4, be slidably equipped with transverse moving left and right sliding block 5 on the transverse moving left and right sliding rail 4, the transverse moving left and right sliding block 5 with for driving its shifting
Dynamic transverse moving left and right driving mechanism connection；
The transverse moving left and right sliding block 5 is equipped with vertical lifting sliding rail 6, and the lifting sliding rail 6 is equipped with lifting and slides
Block 7, the lifting slider 7 are connect with the lift drive mechanism for driving it to go up and down；
The lifting slider 7 is equipped with rotation drive device, and the output end of the rotation drive device is equipped with stirring and rubs
Soldering tip 9 is wiped, rotation drive device uses electro spindle 8 in the present embodiment, and the mechanisms such as servo motor can also be used certainly；
The top of the workbench 2 is equipped with compression table top 10, the compression table top 10 and for driving it to go up and down
Table top driving device connects, and lateral through slot 11 is also provided on the compression table top 10, and the agitating friction soldering tip 9 is directed at institute
The through slot 11 stated.
When carrying out the welding of copper strips or copper alloy belt, a copper strips or copper alloy belt are placed on workbench 2 first
On, then another copper strips or copper alloy belt be placed on workbench 2, make two copper strips or copper alloy belt head and the tail overlapping pair
It connects, table top 10 is compressed under the driving of table top driving device and is declined, copper strips or copper alloy belt are pressed on and compress table top 10 and work
Make between platform 2, it is corresponding with the through slot 11 compressed on table top 10 at the overlapping docking of two copper strips or copper alloy belt.It is rising later
It drops lifting slider 7 under the driving of driving mechanism to decline, under the driving of rotation drive device, agitating friction soldering tip 9 rotates, stirring
Friction soldering tip 9, which drops to be overlapped at docking the ending of two copper strips or copper alloy belt in the through slot 11 for compressing table top, to be stirred
Friction welding (FW) can set grating scale, the dropping distance of precision lift sliding block on lifting slider 7.Later in the drive of lift drive mechanism
Dynamic lower lifting slider 7 rises, and completes the spot welding of a point.Then under the driving of transverse moving left and right driving mechanism, transverse moving left and right is sliding
5 traversing distances of block, agitating friction soldering tip 9 declines again later carries out a friction stir spot welding.Repeated several times
Complete welding.
In the present embodiment, the through slot 11 has a plurality of, and a plurality of through slot 11 is parallel to each other；The installation crossbeam 3
On a front and back vertical shift frame 12, the rack 1 is equipped with front and back vertical shift slide rail, and the front and back vertical shift frame 12 is set to described
Front and back vertical shift slide rail on, the front and back vertical shift frame 12 with for drive its be moved forward and backward vertical shift driving mechanism connect.
A line friction stir spot postwelding is completed, under the driving of vertical shift driving mechanism, front and back vertical shift frame 12 is forward or backward
It moves a certain distance, agitating friction soldering tip 9 is made to be directed at another through slot 11, carry out a line friction stir spot welding again.
In the present embodiment, the transverse moving left and right driving mechanism are as follows: the transverse moving left and right sliding block 5 is equipped with vertically arranged
Traversing driving motor 13, the described installation crossbeam 3 is equipped with lateral rack gear 14, the output shaft of the traversing driving motor 13
Equipped with gear, the gear is engaged with the rack gear 14, and traversing driving motor 13 starts, and band moving gear rotates, in gear
Transverse moving left and right sliding block 5 is i.e. removable under mating reaction with rack gear 14.Other knots can also be used in certain transverse moving left and right driving mechanism
Configuration formula, such as cylinder, screw body etc..
In the present embodiment, the lift drive mechanism are as follows: the transverse moving left and right sliding block 5 is equipped with vertically arranged liter
Driving motor 15 drops, and the output shaft of the lifting driving motor 15 is connected with elevating screw, and the lifting slider 7 is threaded through institute
On the elevating screw stated, lifting driving motor 15 starts, and drives elevating screw rotation, lifting slider 7 can be driven to go up and down.Certainly
Lift drive mechanism can also be using other structures form, such as cylinder, gear and rack teeth mechanism etc..
In the present embodiment, the table top driving device are as follows: the rack is equipped with vertically arranged lifting cylinder 16,
The both ends for compressing table top 10 are connect with the output end of the lifting cylinder 16 respectively.Certain table top driving device can also adopt
With other structures form, such as gear and rack teeth mechanism, screw body etc..
In the present embodiment, vertical shift driving mechanism are as follows: the rack 1 is equipped with the longitudinally disposed vertical shift driving motor in front and back
17, the output shaft of the vertical shift driving motor 17 is connected with vertical shift screw rod, and the front and back vertical shift frame 12 is threaded through described indulge
On silk shifting rod, vertical shift driving motor 17 starts, and drives the rotation of vertical shift screw rod, so that front and back vertical shift frame 12 be driven to be moved forward and backward.When
Right vertical shift driving mechanism can also be using other structures form, such as cylinder, gear and rack teeth mechanism etc..
In the present embodiment, the output end of the rotation drive device is equipped with elastic collet；The machine of the workbench side
Frame is equipped with indexing and turns 18, and the stage body 19 of the index table is equipped with one and encloses several clamping opening；The agitating friction soldering tip
Upper end has clamping part 20, and the middle part of the agitating friction soldering tip, which is equipped with, puts the portion of holding, and the clamping part 20 can be clamped at institute
In the elastic collet stated, the described portion of holding of putting can be sandwiched in the clamping opening.It is set in clamping opening on the stage body 19 of index table
The agitating friction soldering tip 9 of different model is set, different agitating friction soldering tips 9 can be replaced according to different welding requirements.It replaced
The agitating friction soldering tip being connected in rotation drive device is moved in vacant clamping opening by Cheng Wei, then in lift drive mechanism
Driving under lifting slider 7 rise, make agitating friction soldering tip upper end clamping part 20 be detached from elastic collet, thus agitating friction weld
Head stays in clamping opening.Then the stage body of index table rotates an angle, and rotation drive device is directed at the agitating friction in clamping opening
Soldering tip, the clamping part 20 of agitating friction soldering tip upper end is inserted into resilient clip opening after rotation drive device decline, is driven in transverse moving left and right
Agitating friction soldering tip is driven to remove in clamping opening under the driving effect of motivation structure, to complete the replacement of agitating friction soldering tip.
The clamping part 20 of agitating friction soldering tip upper end may be designed as the bulb of middle part evagination, the elastic clip of rotation drive device
Head have certain deformability, bulb can force enter in elastic collet, also can under external force by force take off place elastic collet.Certainly,
Pneumatic chuck can also be used in the elastic collet, is held together by the opening and folder of pneumatic chuck to realize on agitating friction soldering tip
The clamping of the clamping part at end loosens.
In the present embodiment, it is equipped in the clamping opening and shelves piece, it is described to put the portion of holding and shelve slot 21 equipped with indent, it is described
Shelve piece can be inserted into it is described shelve in slot 20, agitating friction soldering tip 9 can be put when shelving piece insertion and shelving in slot 20
It sets in clamping opening.
In the present embodiment, the rack is equipped with a school knife position sensor.The meaning of school knife position sensor exists
In diversified in specifications, the agitating friction soldering tip after having replaced friction-stir soldering tip, after making replacement of each agitating friction soldering tip
It is rested on the knife position sensor of school first and touches the school knife position sensor, using position at the knife position sensor of school as one
Datum mark is stirred friction welding (FW) with this datum mark to control the distance of decline.
Claims (7)
1. the agitating friction soldering equipment of a kind of copper strips or copper alloy belt, including rack, the rack has a workbench,
Be characterized in that: the rack at the workbench rear is equipped with installation crossbeam, and the installation crossbeam is sliding equipped with transverse moving left and right
Rail, is slidably equipped with transverse moving left and right sliding block on the transverse moving left and right sliding rail, the transverse moving left and right sliding block with for driving its movement
Transverse moving left and right driving mechanism connection；
The transverse moving left and right sliding block is equipped with vertical lifting sliding rail, and the lifting sliding rail is equipped with lifting slider, described
Lifting slider with for drive its go up and down lift drive mechanism connect；
The lifting slider is equipped with rotation drive device, and the output end of the rotation drive device is welded equipped with agitating friction
Head；
The top of the workbench, which is equipped with, compresses table top, and the compression table top is filled with the table top driving for driving it to go up and down
Connection is set, lateral through slot, the agitating friction soldering tip alignment through slot are also provided on the compression table top；
The output end of the rotation drive device is equipped with elastic collet；
The rack of the workbench side is equipped with index table, and the stage body of the index table is equipped with several folders of a circle
Mouthful；
The upper end of the agitating friction soldering tip has clamping part, and the middle part of the agitating friction soldering tip, which is equipped with, puts the portion of holding, described
Clamping part can be clamped in the elastic collet, described to put the portion of holding and be sandwiched in the clamping opening；
The rack is equipped with a school knife position sensor；
Grating scale is additionally provided on the lifting slider.
2. the agitating friction soldering equipment of copper strips as described in claim 1 or copper alloy belt, it is characterised in that: the through slot tool
Have a plurality of, and a plurality of through slot is parallel to each other；
The installation crossbeam is set on a front and back vertical shift frame, and the rack is equipped with front and back vertical shift slide rail, the front and back
Vertical shift is set up in the front and back vertical shift slide rail, and the front and back vertical shift frame drives with the vertical shift for driving it to be moved forward and backward
Mechanism connection.
3. the agitating friction soldering equipment of copper strips as claimed in claim 1 or 2 or copper alloy belt, it is characterised in that: the left side
Right traversing driving device are as follows: the transverse moving left and right sliding block is equipped with vertically arranged traversing driving motor, and the installation is horizontal
Beam is equipped with lateral rack gear, and the output shaft of the traversing driving motor is equipped with gear, and the gear is nibbled with the rack gear
It closes.
4. the agitating friction soldering equipment of copper strips as claimed in claim 1 or 2 or copper alloy belt, it is characterised in that: the liter
Driving mechanism drops are as follows: the transverse moving left and right sliding block is equipped with vertically arranged lifting driving motor, the lifting driving motor
Output shaft be connected with elevating screw, the lifting slider is threaded through on the elevating screw.
5. the agitating friction soldering equipment of copper strips as claimed in claim 1 or 2 or copper alloy belt, it is characterised in that: the platform
Face driving device are as follows: the rack be equipped with vertically arranged lifting cylinder, it is described compress table top both ends respectively with it is described
The output end of lifting cylinder connects.
6. the agitating friction soldering equipment of copper strips as claimed in claim 2 or copper alloy belt, it is characterised in that: the vertical shift is driven
Motivation structure are as follows: the rack is equipped with the longitudinally disposed vertical shift driving motor in front and back, the output shaft of the vertical shift driving motor
It is connected with vertical shift screw rod, the front and back vertical shift frame is threaded through on the vertical shift screw rod.
7. the agitating friction soldering equipment of copper strips as described in claim 1 or copper alloy belt, it is characterised in that: the elastic clip
Head is pneumatic chuck, is equipped in the clamping opening and shelves piece, and slot is shelved equipped with indent by the portion of holding of putting, and described shelves piece
It can be inserted into described shelve in slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636838.9A CN106041291B (en) | 2016-08-06 | 2016-08-06 | A kind of copper strips or copper alloy belt Welding Method & Equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610636838.9A CN106041291B (en) | 2016-08-06 | 2016-08-06 | A kind of copper strips or copper alloy belt Welding Method & Equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106041291A CN106041291A (en) | 2016-10-26 |
| CN106041291B true CN106041291B (en) | 2019-04-19 |
Family
ID=57481293
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610636838.9A Active CN106041291B (en) | 2016-08-06 | 2016-08-06 | A kind of copper strips or copper alloy belt Welding Method & Equipment |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106514271B (en) * | 2016-12-14 | 2019-01-29 | 宁波金凤焊割机械制造有限公司 | Copper strips or copper alloy belt agitating friction soldering equipment |
| CN106424911B (en) * | 2016-12-14 | 2018-04-17 | 宁波金凤焊割机械制造有限公司 | The cutting registration mechanism of copper strips or copper alloy belt agitating friction soldering equipment |
| CN108746985A (en) * | 2018-06-19 | 2018-11-06 | 湖南文理学院 | A kind of friction welding apparatus convenient for fixed friction soldering tip |
| CN109079382B (en) * | 2018-08-30 | 2021-02-12 | 惠州攸特电子股份有限公司 | Filter welding positioning mechanism and welding equipment thereof |
| CN110394535A (en) * | 2019-08-16 | 2019-11-01 | 绍兴柯桥凯歌电子有限公司 | It is a kind of can automatic identification positioning small-sized spot-welding machine |
| CN114054929A (en) * | 2021-11-16 | 2022-02-18 | 南通泰胜蓝岛海洋工程有限公司 | Longitudinal seam welding process for steel plate structure of offshore wind power tower |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100006622A1 (en) * | 2008-07-10 | 2010-01-14 | Smith Christopher B | Self-clamping friction stir welding device |
| KR101143941B1 (en) * | 2008-09-29 | 2012-05-21 | 주식회사 윈젠 | A Friction stir welding machine for beeline welding |
| JP5987397B2 (en) * | 2012-03-27 | 2016-09-07 | 株式会社Ihi | Friction stir welding equipment |
| CN203670522U (en) * | 2014-01-04 | 2014-06-25 | 陈焕祥 | Motor stirring connector |
| CN104191119B (en) * | 2014-09-15 | 2016-02-17 | 浙江巨力电机成套设备有限公司 | Rotor spot welder certainly move welding rod device |
| CN105312761B (en) * | 2015-06-05 | 2019-02-15 | 广东柳泰焊接科技有限公司 | A kind of flexibility stirring-head and its friction stir weld device |
| CN105728936A (en) * | 2016-05-07 | 2016-07-06 | 宁波金凤焊割机械制造有限公司 | Stirring friction welding device for welding copper or copper alloy |
| CN105750773A (en) * | 2016-05-07 | 2016-07-13 | 宁波金凤焊割机械制造有限公司 | Spot welding machine for copper plates |
| CN205914884U (en) * | 2016-08-06 | 2017-02-01 | 宁波金凤焊割机械制造有限公司 | Friction stir spot welding device in copper strips or copper alloy area |
-
2016
- 2016-08-06 CN CN201610636838.9A patent/CN106041291B/en active Active
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