CN206605170U - Laser cold metal transfer electric arc is coaxially combined increasing material manufacturing device - Google Patents
Laser cold metal transfer electric arc is coaxially combined increasing material manufacturing device Download PDFInfo
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- CN206605170U CN206605170U CN201720169142.XU CN201720169142U CN206605170U CN 206605170 U CN206605170 U CN 206605170U CN 201720169142 U CN201720169142 U CN 201720169142U CN 206605170 U CN206605170 U CN 206605170U
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- laser
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- material manufacturing
- increasing material
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Abstract
The utility model provides a kind of laser cold metal transfer electric arc and is coaxially combined increasing material manufacturing device, including laser, the CMT sources of welding current and composite welding head, the spectroscope and at least two that composite welding head includes the fixed seat with inner chamber, CMT welding guns and installed in the lumen reflects focus lamps, beam inlet and beam outlet are offered in fixed seat, incident laser beam is divided at least two beam reflection laser light beams by spectroscope, and reflection laser light beam is reflected into focused laser beam by reflection focus lamp；The end of multi beam focused laser beam, which is focused on, to be had focussed laser spot and forms hollow region, and focussed laser spot, the torch neck of CMT welding guns and hollow region are coaxially set.CMT arc spots and focussed laser spot are coaxially combined into symmetrical composite heat power supply by the application so that welding process is not influenceed by welding direction, and then is advantageously used in complex-curved welding, three-dimensional welding, increasing material manufacturing of complex parts etc..
Description
Technical field
The utility model is related to welding technology field, and more particularly to a kind of laser-cold metal transfer electric arc is coaxially combined
Increasing material manufacturing device.
Background technology
Laser-arc hybrid welding in industry combines two respective advantages of independent thermal source of laser and electric arc, such as：Laser heat source
The characteristic conducted with high energy density, extremely excellent directive property and transparent medium, arc-plasma has high thermo-electrically
The advantages such as transformation efficiency, the operating cost of cheap equipment cost, technology mature, therefore laser-arc hybrid welding in industry is very big
The two respective shortcoming is avoided to degree, such as：The laser energy that metal material is caused to the high reflectance of laser loses, swashed
The high equipment cost of light device, low electrical-optical transformation efficiency etc., discharge when the relatively low energy density of electric arc thermal source, high-speed mobile
Stability difference etc., meanwhile, the characteristics of combination of laser welding and electric arc welding has also derived many new：High-energy is close
Degree, high-energy utilization rate, high arc stability, relatively low frock prepare precision and workpiece surface quality to be welded etc., therefore
Laser-arc hybrid welding in industry turns into the novel welding thermal source with very big application prospect.
At present, laser-arc hybrid welding in industry technology is mainly combined using MIG/MAG with laser, but MIG/MAG is defeated in the presence of heat
Enter the defects such as amount is big, deformation is serious, splashing can not be avoided.And cold metal transfer technology CMT (Cold Metal Transfer) is
Fronius companies are gradually sent out on the basis of research plate sheet welding, without splashing transitional technology and aluminium and steel dissimilar metal interconnection technique
The new welding technique opened up and grown up, CMT welding methods are due to faster speed of welding, energy of preferably putting up a bridge
Power, smaller deformation, evenly consistent weld seam, and the advantages of do not splash, having expanded common MIG/MAG welderings can not relate to
And field.But, during the simple welding using CMT, because the bath temperature of CMT arc weldings is relatively low, many using multilayer
When road is welded, easily there are the defects such as incomplete fusion or slag inclusion；And using pure Ar protect CMT electric arcs soldering stainless steel, nickel-base alloy or
During high-strength steel, there is electric arc and wave, deflection is not enough, the problems such as welding process is unstable, welding quality has detrimental effect.
In view of the above-mentioned problems, Publication No. CN101811231B Chinese utility model patent discloses a kind of laser-CMT
Composite welding process, it is not good and CMT electric arcs of pure Ar protection weld the deficiency existed for CMT arc welds spreadability,
Make full use of CMT electric arc heat inputs it is low, splash small, seam deformation it is small, on the basis of the high advantage of Welding Metallurgy quality, by CMT
Electric arc welding is combined with laser welding, using the effect of laser in composite heat power supply, overcomes the deficiency of CMT arc welding methods,
Obtain high-quality welding.But, according to the record of its specification and accompanying drawing, the hot spot of laser beam and the spot of CMT electric arcs it
Between center spacing L be 0-8mm, in other words, CMT electric arcs are located at the peripheral side of laser beam, and this complex welding method is still present
Following shortcoming：1st, CMT electric arcs thermal source and laser heat source are between the two asymmetry, are influenceed larger by welding direction, it is difficult to use
In complex-curved or three-dimensional welding；2nd, the mutual alignment relation between CMT arc spots and laser beam focus hot spot actually should
Used time is difficult to keep stable, big to welding process stability influence.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of laser-cold metal mistake
Cross electric arc and be coaxially combined increasing material manufacturing device, it is easily controlled the mutual position between CMT arc spots and laser beam focus hot spot
Put and influence of the welding direction to welding process can be avoided.
To achieve the above object, the utility model provides a kind of laser-cold metal transfer electric arc and is coaxially combined increasing material manufacturing
Device, including for launching the laser, the CMT sources of welding current and composite welding head of incident laser beam, the composite welding
The spectroscope and at least two that head includes the fixed seat with inner chamber, CMT welding guns and installed in the lumen reflects focus lamps,
It is further opened with holding the beam inlet that incident laser beam passes through in the fixed seat, the beam inlet is just to spectroscope, described point
There are at least two light splitting minute surfaces, for incident laser beam to be divided into at least two beam reflection laser light beams on light microscopic, it is described anti-
Penetrating on focus lamp has towards the focusing minute surface of light splitting minute surface, for receiving reflection laser light beam and reflecting reflection laser light beam
Into focused laser beam, offered in the fixed seat and hold the beam outlet that multi beam focused laser beam is projected；Multi beam, which is focused on, to swash
The end of light light beam, which focuses on to have, is formed with hollow region between focussed laser spot and multi beam focused laser beam, the CMT welderings
Rifle is connected with the CMT sources of welding current and the torch neck of CMT welding guns is located in hollow region, the focussed laser spot, welding gun
Nozzle and hollow region are coaxially set.
Further, the CMT welding guns are located in the hollow region, and focussed laser spot is being located at torch neck just
Lower side.
Preferably, the beam inlet is opened on the upper surface of fixed seat, and the beam outlet is opened in fixed seat
On lower surface.
Further, the fixed seat is fixedly connected with light beam incident pipe at beam inlet, and the light beam incident pipe is remote
One end of fixed seat is connected with laser.
Preferably, the laser is CO2 lasers, Nd:YAG laser, dish-shaped laser, semiconductor laser or light
Fibre laser.
Further, the light splitting minute surface is plane or arcwall face.
Further, the focusing minute surface is arcwall face.
Preferably, the quantity of the light splitting minute surface, reflection focus lamp and beam outlet three is equal.
As described above, laser-cold metal transfer electric arc that the utility model is related to coaxially is combined increasing material manufacturing device, have
Following beneficial effect：
The application is by the focussed laser spot, torch neck and formation that are coaxially set in multi beam focused laser beam
The hollow region of the week side of boss, can coaxially be combined into symmetrical composite heat power supply so that welded by CMT arc spots and focussed laser spot
Journey is not influenceed by welding direction, and then is advantageously used in complex-curved welding, three-dimensional welding, the increasing material manufacturing of complex parts
Deng.
Brief description of the drawings
Fig. 1 is coaxially combined the structural representation of increasing material manufacturing device for laser-cold metal transfer electric arc in the utility model.
Fig. 2 and Fig. 3 is Fig. 1 not be the same as Example.
Component label instructions
1 fixed seat
11 inner chambers
12 beam inlets
13 beam outlets
2 CMT welding guns
21 torch necks
3 spectroscopes
31 light splitting minute surfaces
4 reflection focus lamps
41 focus on minute surface
5 hollow regions
6 welding wires
7 light beam incident pipes
81 incident laser beams
82 reflection laser light beams
83 focused laser beams
Embodiment
Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages of the present utility model and effect easily.
It should be clear that structure, ratio, size that this specification accompanying drawing is painted etc., only to coordinate in disclosed in specification
Hold, so that those skilled in the art is understood with reading, be not limited to the enforceable qualifications of the utility model, therefore not
Has technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influenceing this practicality new
Under effect that type can be generated and the purpose that can reach, all should still fall can cover in the technology contents disclosed in the utility model
In the range of.Meanwhile, the term of cited such as " on ", " under " in this specification, "left", "right", " centre " and " one ", also
Only understand for ease of narration, and be not used to limit the enforceable scope of the utility model, its relativeness is altered or modified,
Without under essence change technology contents, when being also considered as the enforceable category of the utility model.
The application provides a kind of laser-cold metal transfer electric arc and is coaxially combined increasing material manufacturing device, its by beam of laser and
Cold metal transfer electric arc (i.e. CMT electric arcs) mixes the coaxial symmetrical composite heat power supply of circumference of acquisition, and then is formed on base material
Welding increases material, and the base material is welded piece.The laser-cold metal transfer electric arc, which is coaxially combined increasing material manufacturing device, to be included
Laser, the CMT sources of welding current and composite welding head；Wherein, laser is used to launch incident laser beam 81, composite welding
Head is used to realize that laser and the coaxial of CMT electric arcs are combined.Specifically, as shown in figure 1, the composite welding head includes having inner chamber
11 fixed seat 1, CMT welding guns 2 and the reflection focus lamp 4 of spectroscope 3 and at least two being fixedly mounted in inner chamber 11；Institute
State to offer in fixed seat 1 and hold the beam inlet 12 that passes through of incident laser beam 81, the beam inlet 12 just to spectroscope 3, make
The incident laser beam 81 launched by laser is irradiated on the light splitting minute surface 31 of spectroscope 3；The spectroscope of the spectroscope 3
At least two, face 31, light splitting minute surface 31 is used to incident laser beam 81 being divided at least two beam reflection laser light beams 82 and incited somebody to action
Reflection laser light beam 82 is reflexed on the focusing minute surface 41 of reflection focus lamp 4；The direction of focusing minute surface 41 of the reflection focus lamp 4
The light splitting minute surface 31 of spectroscope 3, focusing on minute surface 41 is used to reflection laser light beam 82 being reflected into focused laser beam 83 again；It is described
Offered in fixed seat 1 and hold the beam outlet 13 that multi beam focused laser beam 83 is projected.Multi beam focused laser beam 83 is from light beam
Export after being projected at 13, its end is focused on, so as to form the focussed laser spot outside fixed seat 1, multi beam focuses on laser
It is also formed with being located between light beam 83 outside fixed seat 1 and unobstructed hollow region 5, the hollow region 5 is tapered.It is described
CMT welding guns 2 are connected with the CMT sources of welding current, and CMT welding guns 2 convey welding wire 6 by its torch neck 21, and CMT is formed on base material
Arc spot.The CMT welding guns 2 between two adjacent beam focused laser beams 83 (i.e. from the side of hollow region 5) from stretching into
In hollow region 5, so that the torch neck 21 of CMT welding guns 2 is located in hollow region 5, the focussed laser spot, weldering
Rifle nozzle 21 and hollow region 5 are coaxially set.
The application also provides a kind of laser-cold metal transfer electric arc and is coaxially combined increasing material manufacturing method, using as described above
Laser-cold metal transfer electric arc be coaxially combined increasing material manufacturing device, as shown in figure 1, the laser-cold metal transfer electric arc is same
Axle is combined increasing material manufacturing method and comprised the following steps successively：
Step A, unlatching laser, the connection CMT sources of welding current；Laser launches incident laser beam 81, described incident sharp
Light light beam 81 enters in inner chamber 11 at the beam inlet 12 of fixed seat 1 and is irradiated on the light splitting minute surface 31 of spectroscope 3；
Incident laser beam 81 is divided at least two beam reflection laser light beams 82 and will at least two beam by step B, spectroscope 3
Reflection laser light beam 82 reflexes to the focusing minute surface 41 of each reflection focus lamp 4；
Step C, the focusing minute surface 41 of reflection focus lamp 4 form focused laser beam after each reflection laser light beam 82 is reflected
83, multi beam focused laser beam 83, which projects at the beam outlet 13 of fixed seat 1 and focuses on to be formed on base material, focuses on laser light
Spot；
Step D, CMT welding gun 2 transfers out welding wire 6, so as to the formation CMT arc spots on base material by torch neck 21；
Because torch neck 21 is located in hollow region 5 and is coaxially set with hollow region 5, therefore the weldering transferred out by torch neck 21
Centers of the silk 6 in multi beam focused laser beam 83, surrounded all the time by the focused laser beam 83 of multi beam symmetrically, and welding wire
6 are also coaxially set with hollow region 5, so make the CMT arc spots of CMT welding guns 2 and focussed laser spot it is coaxial it is compound after
The symmetrical composite heat power supply of circumference is formed, in other words, the central symmetry axis of multi beam focused laser beam 83 and the Central Symmetry of CMT electric arcs
Overlapping of axles, and collective effect obtains the symmetrical composite heat power supply of circumference in substrate surface, the symmetrical composite heat power supply of the circumference is in base material
It is upper to form welding increasing material, finally realize that the coaxial hybrid welding not limited by welding direction connects or increasing material manufacturing.
The laser that the application is related to-cold metal transfer electric arc is coaxially combined in increasing material manufacturing device and method, is passed through first
Light chopper obtains multi beam focused laser beam 83, then the electrode wire 6 for transferring out torch neck 21 is placed in multi beam and focused on and swashs
In the hollow region 5 of the inner circumferential of light light beam 83 and with the coaxial line of hollow region 5, i.e. electrode wire 6 and multi beam focused laser beam 83
Coaxial line, so that realizing in welding process that welding wire 6 and multi beam focused laser beam 83 are coaxial is admitted to spot center, i.e. CMT electricity
Arc spot is coaxially combined into symmetrical composite heat power supply with focussed laser spot so that welding process is not influenceed by welding direction, is entered
And it is advantageously used in complex-curved welding, three-dimensional welding, increasing material manufacturing of complex parts etc..Meanwhile, its CMT electric arc formed
The mutual alignment relation that spot and multi beam focused laser beam 83 are focused between the focussed laser spot formed keeps stable, so that
Greatly improve welding bead quality.In addition, the application also makes full use of the excellent of laser and cold metal transfer electric arc (CMT electric arcs)
Gesture, realizes high energy efficiency, low cost, high-quality welding and increasing material manufacturing method.
Further, as shown in figure 1, the CMT welding guns 2 are integrally located in the hollow region 5, and focussed laser spot
Positioned at the underface side of torch neck 21, the incident laser beam 81 from top to bottom enters in the inner chamber 11 of fixed seat 1, described
Focused laser beam 83 is from top to bottom projected from the inner chamber 11 of fixed seat 1, and therefore, the beam inlet 12 is opened in fixed seat
On 1 upper surface, the beam outlet 13 is opened on the lower surface of fixed seat 1, the upper surface and lower surface of the fixed seat 1
All it is plane.Meanwhile, the fixed seat 1 is fixedly connected with the light beam incident pipe 7 extended vertically up and down at beam inlet 12, should
Upper end of the light beam incident pipe 7 away from fixed seat 1 is connected with the light output end of laser.The laser can be CO2 laser
Device, Nd:YAG laser, dish-shaped laser, semiconductor laser or optical fiber laser.
Further, the light splitting minute surface 31 is plane or arcwall face；The minute surface 41 that focuses on is arcwall face, and focus lamp
It is made up of an arc curve mirror or multiple arcs minute surface.
More preferably, the quantity of the light splitting minute surface 31, reflection focus lamp 4 and the three of beam outlet 13 is equal, such as：
When light splitting minute surface 31 there are two, then reflect focus lamp 4 and beam outlet 13 is both configured to two, the reflection laser light formed
Beam 82 and focused laser beam 83 are all two beams；Or, when light splitting minute surface 31 there are three, then reflect focus lamp 4 and light beam goes out
Mouth 13 is both configured to three, and the reflection laser light beam 82 and focused laser beam 83 formed is all three beams, two exemplified below
Laser-cold metal transfer electric arc is coaxially combined the preferred embodiment of increasing material manufacturing device.
Embodiment one, as shown in Fig. 2 in the embodiment, there are two light splitting minute surfaces 31 on spectroscope 3, fixed seat 1 it is interior
Two 180 ° symmetrical parabolic reflective focusing mirrors 4 are installed in chamber 11.Therefore, the incident laser beam of laser output
After 81 incide on spectroscope 3 through beam inlet 12, incident laser beam 81 is divided into two symmetrical beams and reflected by spectroscope 3
Laser beam 82；Two beam reflection laser light beams 82 form two beams and focused on after being reflected respectively through two parabolic reflective focusing mirrors 4 swashs
Light light beam 83；Two beam focused laser beams 83 are focused on after being projected at the beam outlet 13 of fixed seat 1 on base material, and and CMT
Electric arc collective effect implements welding or increasing material manufacturing in substrate surface by the coaxial composite symmetrical thermals source of laser-CMT.
Embodiment two, as shown in figure 3, in the embodiment, spectroscope 3 is prismatic spectroscope 3, with three light splitting minute surfaces
31, three uniform parabolic reflective focusing mirrors 4 of 120 ° of circumferences are installed in the inner chamber 11 of fixed seat 1.Therefore, laser is exported
Incident laser beam 81 incided through beam inlet 12 on prismatic spectroscope 3 after, prismatic spectroscope 3 is by incident laser beam 81
It is divided into the uniform reflection laser light beam 82 of 120 ° of circumferences of three beams；Three beams reflection laser light beam 82 is poly- through three parabolic reflectors respectively
Burnt mirror 4 forms three beams focused laser beam 83 after reflecting；Three beams focused laser beam 83 is penetrated at the beam outlet 13 of fixed seat 1
Focused on after going out on base material, and with CMT electric arcs collective effect in substrate surface, by the coaxial composite symmetrical thermal source realities of laser-CMT
Welding connects or increasing material manufacturing.
In summary, the utility model effectively overcomes various shortcoming of the prior art and has high industrial exploitation value
Value.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.
Claims (8)
1. a kind of laser-cold metal transfer electric arc is coaxially combined increasing material manufacturing device, it is characterised in that：Including for launching incidence
Laser, the CMT sources of welding current and the composite welding head of laser beam (81), the composite welding head include having inner chamber
(11) fixed seat (1), CMT welding guns (2) and the spectroscope (3) and at least two in inner chamber (11) reflects focusing
It is further opened with holding the beam inlet (12) that incident laser beam (81) passes through, the beam inlet on mirror (4), the fixed seat (1)
(12) there are at least two light splitting minute surfaces (31) just to spectroscope (3), on the spectroscope (3), for by incident laser beam
(81) being divided at least two beam reflection laser light beams (82), the reflection focus lamp (4) has towards the poly- of light splitting minute surface (31)
Burnt minute surface (41), for receiving reflection laser light beam (82) and reflection laser light beam (82) being reflected into focused laser beam
(83), offered on the fixed seat (1) and hold the beam outlet (13) that multi beam focused laser beam (83) is projected；Multi beam, which is focused on, to swash
The end of light light beam (83) focuses on to have is formed with hollow region between focussed laser spot and multi beam focused laser beam (83)
(5), the CMT welding guns (2) are connected with the CMT sources of welding current and the torch neck (21) of CMT welding guns (2) is located at hollow region
(5) in, the focussed laser spot, torch neck (21) and hollow region (5) are coaxially set.
2. laser according to claim 1-cold metal transfer electric arc is coaxially combined increasing material manufacturing device, it is characterised in that：
The CMT welding guns (2) are located in the hollow region (5), and focussed laser spot is located at the underface side of torch neck (21).
3. laser according to claim 1-cold metal transfer electric arc is coaxially combined increasing material manufacturing device, it is characterised in that：
The beam inlet (12) is opened on the upper surface of fixed seat (1), and the beam outlet (13) is opened under fixed seat (1)
On end face.
4. laser according to claim 1-cold metal transfer electric arc is coaxially combined increasing material manufacturing device, it is characterised in that：
The fixed seat (1) is fixedly connected with light beam incident pipe (7) at beam inlet (12) place, and the light beam incident pipe (7) is away from fixed
One end of seat (1) is connected with laser.
5. laser according to claim 1-cold metal transfer electric arc is coaxially combined increasing material manufacturing device, it is characterised in that：
The laser is CO2 lasers, Nd:YAG laser, dish-shaped laser, semiconductor laser or optical fiber laser.
6. laser according to claim 1-cold metal transfer electric arc is coaxially combined increasing material manufacturing device, it is characterised in that：
The light splitting minute surface (31) is plane or arcwall face.
7. laser according to claim 1-cold metal transfer electric arc is coaxially combined increasing material manufacturing device, it is characterised in that：
The focusing minute surface (41) is arcwall face.
8. laser according to claim 1-cold metal transfer electric arc is coaxially combined increasing material manufacturing device, it is characterised in that：
The quantity of the light splitting minute surface (31), reflection focus lamp (4) and beam outlet (13) three is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720169142.XU CN206605170U (en) | 2017-02-24 | 2017-02-24 | Laser cold metal transfer electric arc is coaxially combined increasing material manufacturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720169142.XU CN206605170U (en) | 2017-02-24 | 2017-02-24 | Laser cold metal transfer electric arc is coaxially combined increasing material manufacturing device |
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| CN206605170U true CN206605170U (en) | 2017-11-03 |
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| CN201720169142.XU Expired - Fee Related CN206605170U (en) | 2017-02-24 | 2017-02-24 | Laser cold metal transfer electric arc is coaxially combined increasing material manufacturing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213753A (en) * | 2017-12-30 | 2018-06-29 | 沈阳富创精密设备有限公司 | A kind of laser TIG composite welding heads of new model |
| CN108500491A (en) * | 2017-02-24 | 2018-09-07 | 苏州柘电智能科技有限公司 | The coaxial compound increasing material manufacturing device and method of laser-cold metal transfer electric arc |
| CN108588579A (en) * | 2018-04-28 | 2018-09-28 | 苏州大学 | Novel martensitic heat resisting steel and the method for carrying out seamless steel pipe thin-wall bend manufacture using it |
| CN113857668A (en) * | 2021-10-19 | 2021-12-31 | 铭镭激光智能装备（河源）有限公司 | Laser multi-beam composite temperature field welding device |
-
2017
- 2017-02-24 CN CN201720169142.XU patent/CN206605170U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500491A (en) * | 2017-02-24 | 2018-09-07 | 苏州柘电智能科技有限公司 | The coaxial compound increasing material manufacturing device and method of laser-cold metal transfer electric arc |
| CN108213753A (en) * | 2017-12-30 | 2018-06-29 | 沈阳富创精密设备有限公司 | A kind of laser TIG composite welding heads of new model |
| CN108588579A (en) * | 2018-04-28 | 2018-09-28 | 苏州大学 | Novel martensitic heat resisting steel and the method for carrying out seamless steel pipe thin-wall bend manufacture using it |
| CN108588579B (en) * | 2018-04-28 | 2019-12-06 | 苏州大学 | Martensite heat-resistant steel and method for manufacturing seamless steel pipe thin-wall elbow by using martensite heat-resistant steel |
| CN113857668A (en) * | 2021-10-19 | 2021-12-31 | 铭镭激光智能装备（河源）有限公司 | Laser multi-beam composite temperature field welding device |
| CN113857668B (en) * | 2021-10-19 | 2022-04-15 | 铭镭激光智能装备（河源）有限公司 | Laser multi-beam composite temperature field welding device |
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Effective date of registration: 20180607 Address after: 215513 Jiangsu science and Technology Development Zone, Changshou City four sea road 11 Chuang Chuang Patentee after: SUZHOU ZHEDIAN INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 200120 3, 10, Xiu Pu Road, Pudong New Area, Shanghai 2388 Patentee before: SHANGHAI ZHEHUO INTELLIGENT TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20211217 Address after: 200135 floor 2, No. 979, Yunhan Road, Lingang xinpian District, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: Shanghai Hanyong Technology Co.,Ltd. Address before: 215513 Jiangsu science and Technology Development Zone, Changshou City four sea road 11 Chuang Chuang Patentee before: SUZHOU ZHEDIAN INTELLIGENT TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20171103 |