CN106624592A - Sharpening device for electrode rod of welding gun - Google Patents
Sharpening device for electrode rod of welding gun Download PDFInfo
- Publication number
- CN106624592A CN106624592A CN201710140376.6A CN201710140376A CN106624592A CN 106624592 A CN106624592 A CN 106624592A CN 201710140376 A CN201710140376 A CN 201710140376A CN 106624592 A CN106624592 A CN 106624592A
- Authority
- CN
- China
- Prior art keywords
- cutter
- welding gun
- coping device
- coping
- blade
- 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.)
- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 22
- 230000010485 coping Effects 0.000 claims abstract description 42
- 238000009434 installation Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical group [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/3063—Electrode maintenance, e.g. cleaning, grinding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention relates to the technical field of coping, and discloses a coping device for a welding gun electrode rod, which comprises a cutter holder and a cutter, wherein one end of the cutter holder is provided with a cutter mounting groove, the cutter is fixedly arranged in the cutter mounting groove, the cutter comprises a plurality of arc-shaped blades, the arc-shaped blades are circumferentially distributed, and an electrode rod coping hole is formed in the center of the arc-shaped blades, so that the coping function is realized, the coping device effectively solves the problems of resource waste and cost increase caused by direct scrapping after the electrode rod is damaged, and compared with the traditional coping tool, the coping device has the advantages of improving the coping efficiency, being light in structure and being easy to widely apply.
Description
Technical field
The present invention relates to reconditioning technical field, more particularly to a kind of coping device of welding gun electrode bar.
Background technology
In welding job, the interference fit side for being connected by tightening by friction of electrode stem and electrode on welding gun
, on electrode stem even can be there is cut by electrode scuffing with the connection surface of electrode, with the accumulation of cut, can cause electricity in formula
There is gap with the connection of electrode tip in pole bar, and cooling water is spilt from the joint gap, thus affects equipment normal work；Due to mesh
Front no effective electrode stem fix tool, after damaging occurs in electrode stem, operator often has to be scrapped, and gives
Change, so as to waste of resource material, expend time, manpower and management cost.
The content of the invention
The present invention is to solve electrode stem is had to directly to scrap after damaging and causes the wasting of resources and cost up
Problem.
In order to solve the above problems, the present invention provides a kind of coping device of welding gun electrode bar, and the coping device includes tool rest
And cutter, one end of the tool rest offers Cutting tool installation manner groove, and the cutter is fixedly arranged in the Cutting tool installation manner groove；The cutter
Including several cambered blades, several described cambered blades are circumferentially distributed and are formed centrally electrode stem reconditioning hole, institute wherein
The long arc side for stating cambered blade is lateral wall, and the section arc side of the cambered blade is medial wall.
Preferably, the cambered blade is respectively arranged at two ends with knife tail and the cutter head with blade, the arc
Described in the wall thickness of blade from the knife Caudad, the direction of cutter head is gradually incremented by, the inner side of the medial wall knife tail of the cutter head
Wall is closer to the center in the electrode stem reconditioning hole；And the head and the tail of several cambered blades set gradually.
Preferably, one end that the electrode stem is engaged with electrode is taper, and its cone angle is α；The blade edge
The direction of the centrage in the electrode stem reconditioning hole inclines and extends, and the blade and the centrage are in certain angle theta, its
In, θ=α/2.
Preferably, connecting portion is provided between the two neighboring cambered blade, the medial wall of the connecting portion sets
There are chip breaking pockets, the inner end of the connecting portion is resisted against the bottom of the Cutting tool installation manner groove, the outer end of the connecting portion
Portion is provided with chip breaking and draws groove.
Preferably, the chip breaking pockets are arc surface, the radius of the arc surface be 0.45mm～
0.55mm；It is U-type groove that groove is drawn in the chip breaking, and the width of the U-type groove is 1.3mm～1.5mm, the depth of the U-type groove
For 2.1mm～2.3mm.
Preferably, the cambered blade is provided with four pieces, the structure and size all same of four pieces of cambered blades.
Preferably, the cutter is adopted and is integrally machined molding.
Preferably, it is fixedly connected by securing member between the tool rest and the cutter.
Preferably, the other end of the tool rest is fixed with rotating part.
Preferably, the rotating part is external hexagonal sleeve.
Preferably, the material of the tool rest is 40Cr steel, and the material of the cutter is wolfram steel.
The present invention provides a kind of coping device of welding gun electrode bar, including tool rest and cutter, and one end of the tool rest offers knife
Tool mounting groove, cutter are fixedly arranged in Cutting tool installation manner groove, and the cutter includes several cambered blades, and several cambered blades are circumferentially
Distribution is simultaneously formed centrally electrode stem reconditioning hole wherein, thus achieves reconditioning function, and this kind of coping device efficiently solves electrode
Bar is directly scrapped after damaging and causes the problem of the wasting of resources and cost up, and compares more traditional grinding tool and improve
Grinding efficiency, portable construction are easily extensively applied.
Description of the drawings
Fig. 1 is the structure decomposition figure of the coping device of the welding gun electrode bar in the embodiment of the present invention；
Fig. 2 is the front view of the cutter of electrode stem coping device in the embodiment of the present invention；
Fig. 3 is the left view of the cutter of electrode stem coping device in the embodiment of the present invention；
Fig. 4 is the front view of the tool rest of electrode stem coping device in the embodiment of the present invention；
Fig. 5 is the top view of the tool rest of electrode stem coping device in the embodiment of the present invention；
Fig. 6 is the left view of the tool rest of electrode stem coping device in the embodiment of the present invention；
Wherein, 1, tool rest；12nd, Cutting tool installation manner groove；13rd, the first location hole；14th, external hexagonal sleeve；2nd, cutter；21st, arc
Blade；21a, medial wall；21b, lateral wall；211st, cutter head；211a, blade；212nd, knife tail；22nd, electrode stem reconditioning hole；22a, in
Heart line；23rd, connecting portion；231st, chip breaking pockets；232nd, groove is drawn in chip breaking；24th, the second location hole.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Hereinafter implement
Example is for illustrating the present invention, but is not limited to the scope of the present invention.
As illustrated in fig. 1 and 2, the coping device of a kind of welding gun electrode bar of the preferred embodiment of the present invention, which includes tool rest 1 and knife
Tool 2, one end of the tool rest 1 offers Cutting tool installation manner groove 12, and cutter 2 is fixedly installed in the Cutting tool installation manner groove 12 so that cutter 2
Several cambered blades 21 can be included with 1 synchronous axial system of tool rest, the cutter 2, several cambered blades 21 circumferentially divide
Cloth and its long arc side are its lateral wall 21b, and short arc side is its medial wall 21a, so as at the center of several cambered blades 21
Position forms electrode stem reconditioning hole 22, and structure and the surface of the electrode stem for wanting reconditioning in the electrode stem reconditioning hole 22 match, and leads to
Cross the coping device scar reconditioning of electrode stem surface tear can be gone so that the electrode stem puts back into.
Based on above-mentioned technical proposal, the coping device in the present embodiment is circumferentially distributed formation using several cambered blades 21
Electrode stem reconditioning hole 22, electrode stem is inserted the electrode stem reconditioning hole 22 then carries out reconditioning, and this kind of coping device effectively can be solved
Certainly electrode stem is directly scrapped after damaging and causes the problem of the wasting of resources and cost up, and compares more traditional grinding tool
Grinding efficiency can be effectively improved, is easily used widely.
Specifically, as shown in Figure 1, Figure 2 and Figure 3, its cambered blade 21 includes cutter head 211 and knife tail 212, the cutter head 211
Top be provided with blade 211a, the wall thickness of the cambered blade 21 is little by little continuous to the head end of cutter head 211 from the tail end of knife tail 212
It is incremented by, thus, its medial wall 21a is still smooth arc-shaped surface, and the medial wall 21a at the cutter head 211 is compared with the medial wall at knife tail 212
Centers of the 21a closer to electrode stem reconditioning hole 22, thus, when in electrode stem insertion electrode stem reconditioning hole 22, only cutter head 211
Medial wall 21a near blade 211a is contacted with electrode stem, and there is space between knife tail 212 and electrode stem, and the space can be with
For the chip breaking that accommodate electrod bar is produced in reconditioning, all cambered blades 21 in cutter 2 on its circumference in head and the tail according to
Secondary setting, i.e. cutter head 211 are staggeredly adjacent with knife tail 212.
One end that electrode stem is engaged with electrode is taper, and the cone angle of the taper is set to α, as shown in figure 3, in the present embodiment
Blade 211a along the centrage 22a in electrode stem reconditioning hole 22 direction incline extend, the extended line of blade 211a is with
Heart line 22a intersects in certain angle theta, and angle theta=α/2 so that the blade 211a and electrode of coping device in the present embodiment
Bar needs the bus of the taper of reconditioning to match, it is achieved thereby that accurate reconditioning effect.
Preferably, such as Fig. 1 with reference to shown in Fig. 2 and Fig. 3, adjacent two cambered blade 21 of coping device in the present embodiment
Between be provided with connecting portion 23, the connecting portion 23 also curved shape so that adjacent cambered blade 21 is fixed by connecting portion 23
Couple together, i.e., all cambered blades 21 in cutter 2 are linked to be entirety, so that the outer peripheral face of cutter 2 becomes a cylinder
Shape；The chip breaking pockets 231 of the chip breaking that the medial wall of the connecting portion 23 is produced when being provided with for accommodating reconditioning electrode stem, in knife
Between the space of knife tail 212 and electrode stem of adjacent cambered blade 21, then the metal chip breaking that reconditioning is produced at sword 211a drops into
Collect in chip breaking pockets 231 so that chip breaking will not be gathered at blade 211a, so as to eliminate chip breaking to reconditioning effect
Affect；The inner end of connecting portion 23 is resisted against the bottom of Cutting tool installation manner groove 12, and the outer end of connecting portion 23 is additionally provided with chip breaking extraction
Groove 232, the chip breaking are drawn the bottom of groove 232 and are communicated with chip breaking pockets 231 so that chip breaking can accommodate recessed from chip breaking
The inside of cutter 2 is more swimmingly flowed out in groove 231, it is ensured that the quality of reconditioning, improve the precision of reconditioning.
It can be triangle, rectangular-shaped or arc that groove 232 is drawn in above-mentioned chip breaking pockets 231 and chip breaking
Shape, it is preferable that with reference to shown in Fig. 2 and Fig. 3, in this preferred embodiment the chip breaking pockets 231 be arc surface, the arc surface with
Adjacent cutter head 211 and knife tail 212 are tangent, cause the knife tail of cutter head 211 and adjacent cambered blade 21 by the arc surface
212 carry out circular arc seamlessly transits, it is ensured that repairing mill process interrupt bits successfully can be collected in chip breaking pockets 231,
It is also beneficial to chip breaking to flow out from the inside of cutter 2, the radius of the arc surface is 0.45mm～0.55mm, should in this preferred embodiment
The radius of arc surface is preferably 0.5mm；With reference to shown in Fig. 2 and Fig. 3, it is U-shaped that groove 232 is drawn in the chip breaking in this preferred embodiment
Groove, its width d are 1.3～1.5mm, and its depth h is 2.1～2.3mm, and in this preferred embodiment, the width d of the U-type groove is preferably
1.4mm, its depth h is preferably 2.2mm.
Preferably, as depicted in figs. 1 and 2, in the present embodiment, the cutter 2 of coping device employs 4 pieces of cambered blades 21, and this 4
The structure and size all same of block cambered blade 21,4 pieces of cambered blades 21 are circumferentially distributed, between adjacent cambered blade 21
It is provided with the cutter of connecting portion 23, i.e., one 2 and there is 4 connecting portions 23, the structure and size all same of the connecting portion 23, the connection
The medial wall and lateral wall of cutter 2 are linked up together with cambered blade 21 by portion 23, form the cutter 2 of similar cylinder shape,
There are 4 blade 211a being circumferentially evenly arranged in the electrode stem reconditioning hole 22 of formation, when electrode stem is repaiied in the electrode stem
When rotating 1/4 week in grinding out 22, that is, the reconditioning effect of a week is completed, grinding efficiency is drastically increased.
In order that cutter 2 is advantageously mounted in the Cutting tool installation manner groove 12 of tool rest 1, it is preferable that as shown in figure 1, this enforcement
Example employs integrally formed method and generates cutter 2, the lateral wall of the cutter 2 circumferentially face, facilitates cutter 2 with tool rest 1
Coordinate；Preferably, as shown in Figure 4, Figure 5 and Figure 6, tool rest 1 is provided with the first location hole 13, and first location hole 13 is pacified with cutter
Tankage 12 is communicated, and as shown in Figure 1, Figure 2 and Figure 3, the lateral wall of cutter 2 is provided with the second location hole 24, second location hole 24
Position and structure match with the first location hole 13, by using securing member insert the first location hole 13 and with the second location hole
24 are fastenedly connected so that tool rest 1 and cutter 2 are fixed up, and cutter 2 can be synchronized with the movement with tool rest 1, and above-mentioned securing member can be
Positioning screw, bolt or set screw, it is preferable that the securing member adopted in this preferred embodiment for set screw, such as
Shown in Fig. 3,24 tapered opening of the second location hole, its cone angle beta are 120 degree, are provided with and set screw in second location hole 24
The female thread of matching so that be fastenedly connected cutter 2 and tool rest 1, occurs what is loosened during being effectively prevented 2 repairing of cutter mill
Phenomenon.
It is further preferred that the other end of tool rest 1 is fixed with rotating part, the rotating part is used to drive tool rest 1 to be revolved
Turn, i.e. band cutter 2 is rotated together with, the rotating part can be gear, belt wheel or other general parts, for convenience of using general work
Tool rotates which, it is preferable that as shown in Fig. 1, Fig. 5 and Fig. 6, and in the present embodiment, the rotating part of coping device is external hexagonal sleeve 14,
The external hexagonal sleeve 14 is easy to be connected with general utility tool, convenient use, easily realizes extensively applying.
It is further preferred that the material adopted by tool rest 1 is for 40Cr steel so that the tool rest 1 has good impact tough
Property, the material adopted by cutter 2 is for wolfram steel so that cutter 2 has that hardness is high, wear-resisting, intensity and toughness is preferable, heat-resisting, corrosion resistant
A series of premium properties such as erosion, are particularly its high rigidity and wearability, even if also basic at a temperature of 500 DEG C keep not
Become, still have very high hardness at 1000 DEG C.
To sum up, the present invention provides a kind of coping device of welding gun electrode bar, including tool rest and cutter, and one end of tool rest offers
Cutting tool installation manner groove, cutter are fixedly arranged in Cutting tool installation manner groove, and the cutter includes several cambered blades, and several cambered blades are in circle
Week distribution is simultaneously formed centrally electrode stem reconditioning hole wherein, thus achieves reconditioning function, and this kind of coping device efficiently solves electricity
Pole bar is directly scrapped after damaging and causes the problem of the wasting of resources and cost up, and compares more traditional grinding tool and improve
Grinding efficiency, portable construction are easily extensively applied.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of without departing from the technology of the present invention principle, some improvement and replacement can also be made, these improve and replace
Also should be regarded as protection scope of the present invention.
Claims (11)
1. a kind of coping device of welding gun electrode bar, it is characterised in that：
The coping device includes tool rest and cutter, and one end of the tool rest offers Cutting tool installation manner groove, and the cutter is fixedly arranged on institute
State in Cutting tool installation manner groove；The cutter includes several cambered blades, and several described cambered blades are circumferentially distributed and at which
It is centrally formed electrode stem reconditioning hole.
2. the coping device of welding gun electrode bar as claimed in claim 1, it is characterised in that：The two ends of the cambered blade set respectively
There are knife tail and the cutter head with blade, the direction of cutter head is gradually incremented by described in the wall thickness from the knife Caudad of the cambered blade,
The medial wall of the medial wall knife tail of the cutter head is closer to the center in the electrode stem reconditioning hole；
And the head and the tail of several cambered blades set gradually.
3. the coping device of welding gun electrode bar as claimed in claim 2, it is characterised in that：What the electrode stem was engaged with electrode
One end is taper, and its cone angle is α；
The blade is inclined along the direction of the centrage in the electrode stem reconditioning hole and is extended, and the blade with the centrage is in
Certain angle theta, wherein, θ=α/2.
4. the coping device of welding gun electrode bar as claimed in claim 2, it is characterised in that：Between the two neighboring cambered blade
Connecting portion is provided with, the medial wall of the connecting portion is provided with chip breaking pockets, and the inner end of the connecting portion is resisted against the knife
The bottom of tool mounting groove, the outer end of the connecting portion are provided with chip breaking and draw groove.
5. the coping device of welding gun electrode bar as claimed in claim 4, it is characterised in that：
The chip breaking pockets are arc surface, and the radius of the arc surface is 0.45mm～0.55mm；
It is U-type groove that groove is drawn in the chip breaking, and the width of the U-type groove is 1.3mm～1.5mm, and the depth of the U-type groove is
2.1mm～2.3mm.
6. the coping device of welding gun electrode bar as claimed in claim 2, it is characterised in that：The cambered blade is provided with four pieces, and four
The structure and size all same of cambered blade described in block.
7. the coping device of the welding gun electrode bar as described in any one of claim 1-6, it is characterised in that：The cutter is using one
Machine-shaping.
8. the coping device of the welding gun electrode bar as described in any one of claim 1-6, it is characterised in that：The tool rest and the knife
It is fixedly connected by securing member between tool.
9. the coping device of the welding gun electrode bar as described in any one of claim 1-6, it is characterised in that：The other end of the tool rest
It is fixed with rotating part.
10. the coping device of welding gun electrode bar as claimed in claim 9, it is characterised in that：The rotating part is external hexagonal sleeve.
The coping device of the 11. welding gun electrode bars as described in any one of claim 1-6, it is characterised in that：The material of the tool rest
For 40Cr steel, the material of the cutter is wolfram steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710140376.6A CN106624592B (en) | 2017-03-10 | 2017-03-10 | Sharpening device for electrode rod of welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710140376.6A CN106624592B (en) | 2017-03-10 | 2017-03-10 | Sharpening device for electrode rod of welding gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106624592A true CN106624592A (en) | 2017-05-10 |
| CN106624592B CN106624592B (en) | 2019-05-24 |
Family
ID=58847493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710140376.6A Active CN106624592B (en) | 2017-03-10 | 2017-03-10 | Sharpening device for electrode rod of welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106624592B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262903A (en) * | 2017-08-11 | 2017-10-20 | 天津市扬帆科技开发有限公司 | Combination cutlery for electrode automatic grinding device |
| CN107262902A (en) * | 2017-08-11 | 2017-10-20 | 天津市扬帆科技开发有限公司 | A kind of automatic grinding device for lifetime of resistance spot welding electrode |
| JP2019181546A (en) * | 2018-04-16 | 2019-10-24 | 株式会社キョクトー | Cutter for tip dress |
| CN112025074A (en) * | 2020-07-27 | 2020-12-04 | 昆山哈工万洲焊接研究院有限公司 | Cutting tool, shaft shoulder combined structure, friction stir welding device and system |
| CN112122769A (en) * | 2020-09-23 | 2020-12-25 | 昆山哈工万洲焊接研究院有限公司 | Coping ware, coping device and friction stir welding system |
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| JP2009136882A (en) * | 2007-12-03 | 2009-06-25 | Nadex Co Ltd | Device for shaping electrode tip |
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| US5054972A (en) * | 1990-05-15 | 1991-10-08 | Cooney Kevin G | Rotary tool for sharpening studs in snowmobile treads |
| JPH04127977A (en) * | 1990-09-20 | 1992-04-28 | Honda Motor Co Ltd | Tip dresser |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262903A (en) * | 2017-08-11 | 2017-10-20 | 天津市扬帆科技开发有限公司 | Combination cutlery for electrode automatic grinding device |
| CN107262902A (en) * | 2017-08-11 | 2017-10-20 | 天津市扬帆科技开发有限公司 | A kind of automatic grinding device for lifetime of resistance spot welding electrode |
| CN107262902B (en) * | 2017-08-11 | 2022-11-15 | 天津市扬帆科技开发有限公司 | Automatic grinding device for resistance spot welding electrode |
| CN107262903B (en) * | 2017-08-11 | 2022-11-15 | 天津市扬帆科技开发有限公司 | Combined cutting tool for automatic electrode grinding device |
| JP2019181546A (en) * | 2018-04-16 | 2019-10-24 | 株式会社キョクトー | Cutter for tip dress |
| WO2019203087A1 (en) * | 2018-04-16 | 2019-10-24 | 株式会社キョクトー | Machining cutter for tip dressing |
| US11878357B2 (en) | 2018-04-16 | 2024-01-23 | Kyokutoh Co., Ltd. | Tip dressing cutter |
| CN112025074A (en) * | 2020-07-27 | 2020-12-04 | 昆山哈工万洲焊接研究院有限公司 | Cutting tool, shaft shoulder combined structure, friction stir welding device and system |
| CN112122769A (en) * | 2020-09-23 | 2020-12-25 | 昆山哈工万洲焊接研究院有限公司 | Coping ware, coping device and friction stir welding system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106624592B (en) | 2019-05-24 |
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