CN101837500B - Method for realizing profiling welding of curve welding seam with small curvature radius - Google Patents
Method for realizing profiling welding of curve welding seam with small curvature radius Download PDFInfo
- Publication number
- CN101837500B CN101837500B CN2010101287797A CN201010128779A CN101837500B CN 101837500 B CN101837500 B CN 101837500B CN 2010101287797 A CN2010101287797 A CN 2010101287797A CN 201010128779 A CN201010128779 A CN 201010128779A CN 101837500 B CN101837500 B CN 101837500B
- Authority
- CN
- China
- Prior art keywords
- welding
- profiling
- wheel
- curvature radius
- small curvature
- 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.)
- Active
Links
Images
Landscapes
- Arc Welding Control (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a method and a device for realizing the profiling welding of a curve welding seam with small curvature radius. The invention overcomes the defects that the manual welding is adopted during the processing of the welding seam with small curvature radius, the welding speed is slow, the labor intensity is high and the operation control is complex. The technical scheme is that a master profiling template is designed according to requirements, the master profiling template is welded on a plane workpiece, a clamping mechanism is adjusted to set a driving profiling wheel, a driven profiling wheel and a corresponding clamping wheel on the master profiling template, the traveling mechanism of a trolley-type profiling welding machine is positioned on the plane workpiece to be welded through a magnetic universal mechanism, a welding gun is adjusted to reach a proper position, the welding gun starts to move in a simulating way according to the arithmetic mean value of the displacement coordinate of the driving profiling wheel and displacement coordinate of the driven profiling wheel, the wire feeding and the welding are conducted under the drive of a welding motor. The invention has the advantages of simple structure, wide use and high practicability.
Description
Technical field
The invention belongs to the metal solder field, be specifically related to industries such as steel construction, bridge, locomotive, carrier, be fit to the method for the welding of straight line, curve, especially be fit to a kind of method that connects of small curvature radius curved welding seam, the welding of S shape curved welding seam.
Background technology
Known domestic welding method and the corresponding automatic welding device of having produced as automatic welding carriage, girth weld automatic welding machine, can only be finished the simple welding of wall walking, walking in a horizontal state, ring-type walking, and welding radius of curvature is bigger; And the weld seam of the welding of curved welding seam, small curvature radius, S shape curved welding seam in the practical application, particularly three-dimensional small curvature radius weld seam, S shape curved welding seam, what adopt now all is artificial welding, and speed of welding is slow, labour intensity is big, operation control is complicated, the welding quality uniformity is poor.
Summary of the invention
The present invention is in order to overcome existing welding method and the welding equipment weld seam to small curvature radius, the welding of S shape curved welding seam, particularly three-dimensional small curvature radius weld seam, S shape curved welding seam adopts artificial welding in process, speed of welding is slow, labour intensity is big, the complicated shortcoming of operation control, the welding method and the matching used device of the profiling of small curvature radius weld seam have been proposed, be fit to the welding straight line, curved welding seam, be fit to welding small curvature radius weld seam, S shape curved welding seam particularly is fit to the small curvature radius weld seam of welding three dimensional curvature radius greater than 120mm, S shape curved welding seam.
The technical solution used in the present invention is: the small curvature radius curved welding seam is realized the method for profiling weldering, and this method realizes by means of dolly type profiling welding machine with as the cooperation of the curve surface work pieces of template, specifically may further comprise the steps:
1), curve surface work pieces is made as the profiling mould plate according to designing requirement;
2), the shape spot welding of profiling mould plate according to weld seam is positioned on the flat work pieces that is welded;
3), the active contour wheel of dolly type profiling welding machine and the pinch wheels of driven contour wheel and correspondence thereof are set on the profiling mould plate, the air line distance guiding mechanism of automatic welding gun is located between the linear driving mechanism of pinch wheels, and the walking mechanism of dolly type profiling welding machine is positioned on the flat work pieces that is welded by the magnetic omnidirectional mechanism;
4), adjust dolly type profiling welding machine arrive design starting the arc position from the pendulum-type arc welding gun head,
5), start initiatively contour wheel and move, drive dolly type profiling welding machine along the profiling mould plate and move, make the arc welding gun head of dolly type profiling welding machine begin to begin skimulated motion according to the arithmetic mean of instantaneous value of active contour wheel and driven contour wheel displacement coordinate,
6), motor-driven is carried out wire feed, the arc welding gun head setpoint frequency is flapped, led along pattern and finish the welding of small curve curved welding seam by welding.
The invention has the beneficial effects as follows: the present invention is simple, use is extensive, practical.Be applicable to the welding of straight line, curved welding seam, be fit to small curvature radius weld seam, the welding of S shape curved welding seam, be particularly suitable for welding three-dimensional small curvature radius weld seam, the welding of S shape curved welding seam, easy to operate in welding process, improve welding efficiency, improve working conditions.Tracking effect is good, and stable and reliable operation is practical.
Description of drawings
Fig. 1 is the A-A cutaway view of Fig. 3.
Fig. 2 looks schematic diagram for the right side of embodiment of the invention device.
Fig. 3 is the vertical view of embodiment of the invention walking structure.
Fig. 4 is the simple and easy schematic diagram of the present invention.
Among the figure, 1-1 is the welding tractor chassis, and 1-2 is the ball-type wheel, 1-3 is the magnetic force adsorbent equipment, and 1-4 is a universal drive shaft, and 1-5 is a pinch wheels, 1-6 is a wheel shaft, and 1-7 is a drive motors, and 1-8a is the active contour wheel, 1-8b is driven contour wheel, and 1-9 is a bearing pin, and 1-10a is an electrode holder, 1-10b is an arc welding gun head, and 1-11 is the welding motor, and 1-12 is a gear, 1-13 is the swing rocking bar, and 1-14 is a gear shaft, and 1-15 is the welding gun positioning sleeve, 1-16 is the welding locating wheel, and 2-1 is first cylinder, and 2-2 is a rail plate, 2-3 is driven walked frame, and 2-4 is the active walked frame, and 2-5 is a rail plate, 2-6 is second cylinder, 2-7 is a welding stand, and 2-8 is a weld cylinder, and 2-9 is a rail plate, 3 is the profiling mould plate, 3-1 is a flat work pieces, and A is a weld seam
The swaying direction of expression welding gun.
The specific embodiment
The technical solution used in the present invention is: the small curvature radius curved welding seam is realized the method for profiling weldering, and this method realizes by means of dolly type profiling welding machine with as the cooperation of the curve surface work pieces of template, specifically may further comprise the steps:
1), curve surface work pieces is made as profiling mould plate 3 according to designing requirement;
2), the shape spot welding of profiling mould plate 3 according to weld seam is positioned on the flat work pieces 3-1 that is welded;
3), the active contour wheel 1-8a of dolly type profiling welding machine and the pinch wheels 1-5 of driven contour wheel 1-8b and correspondence thereof are set on the profiling mould plate 3, the air line distance guiding mechanism of automatic welding gun is located between the linear driving mechanism of pinch wheels 1-5, and the walking mechanism of dolly type profiling welding machine is positioned on the flat work pieces 3-1 that is welded by the magnetic omnidirectional mechanism;
4), adjust dolly type profiling welding machine arrive design starting the arc position from the pendulum-type arc welding gun head,
5), starting initiatively contour wheel 1-8a moves, drives dolly type profiling welding machine along profiling mould plate 3 and move, make the arc welding gun head 1-10b of dolly type profiling welding machine begin to begin skimulated motion according to the arithmetic mean of instantaneous value of active contour wheel 1-8a and driven contour wheel 1-8b displacement coordinate
6), flap, finish the welding of small curve curved welding seam along the pattern guiding by welding motor 1-11 driving carrying out wire feed, arc welding gun head 1-10b setpoint frequency.
In the technical scheme of the present invention, the pinch wheels 1-5 described in the step 3) is connected with the straight line guiding mechanism that the supporting first cylinder 2-1, the second cylinder 2-6 drives.
In the technical scheme of the present invention, be provided with the welding locating wheel 1-16 of auxiliary automatic welding gun location between the pinch wheels 1-5 described in the step 3).
In the technical scheme of the present invention, include in the structure of the universal detent mechanism of magnetic described in the step 3): the universal wheel 1-4, ball-type wheel 1-2, the magnetic force adsorbent equipment 1-3 that are arranged on the chassis 1-1 bottom of dolly type profiling welding machine.
In the technical scheme of the present invention, the profiling walking process of dolly type profiling welding machine on profiling mould plate 3 described in the step 3) is:
3-1), the clamp mechanism of regulating the active walking of dolly type profiling welding machine, under the adjusting of the second cylinder 2-6, make initiatively contour wheel 1-8a and pinch wheels 1-5 clamping profiling mould plate 3; The first cylinder 2-1 according to the shape of profiling mould plate 3, regulates the driven contour wheel 1-8b pinch wheels 1-5 profile fastener supporting with it simultaneously;
3-2), the magnetic force adsorbent equipment 1-3 of the below of welding tractor chassis 1-1 opens, and whole vehicle body is adsorbed on the welded piece;
3-3), under the drive of drive motors 1-7, initiatively contour wheel 1-8a realizes the profiling walking, during curved section, the second cylinder 2-6 drives the straight line guiding mechanism and constantly regulates initiatively contour wheel 1-8a and pinch wheels 1-5 clamping gauge finder, initiatively the moment of torsion of walked frame 2-4 changes simultaneously, bottom universal wheel 1-4 and the corresponding simultaneously direction of adjusting welding tractor chassis 1-1 of ball-type wheel 1-2;
3-4), the change of welding tractor chassis 1-1 direction simultaneously, the first cylinder 2-1 drives the driven imitative roller 1-8b of the corresponding adjustment of straight line guiding mechanism) moment of torsion, make the direction of driven contour wheel 1-8b and pinch wheels 1-5 and clamping make corresponding change.
In the technical scheme of the present invention, the scope of described small curvature radius curved welding seam radius of curvature is: minimum profile curvature radius 〉=120mm.
Referring to accompanying drawing 1-3, be one embodiment of the present of invention, be fit to welding straight line, curved welding seam, be fit to welding small curvature radius weld seam, S shape curved welding seam, particularly be fit to welding three dimensional curvature radius greater than the small curvature radius weld seam of 120mm, a kind of miniature automatic profiling welding tractor of S shape curved welding seam.Include welding tractor chassis 1-1 in the structure, automatic welder(welding machine) and supporting welder thereof are installed on the 1-1 of welding tractor chassis, also include in the structure: the walking mechanism with the weld seam profiling is installed on the 1-1 of welding tractor chassis, include in the structure of described walking mechanism: active walked frame 2-4, initiatively walked frame 2-4 is slidingly matched by forming with welding tractor chassis 1-1, initiatively contour wheel 1-8a and drive motors 1-7 are positioned at shape walked frame 2-4 one end by the contour wheel wheel assembly, form the clamp mechanism of master plate 3 by the pinch wheels 1-5 of the below setting of welding chassis 1-1, initiatively the driving mechanism of walked frame 2-4 is arranged on the second cylinder 2-6 assembly on the 1-1 of welding tractor chassis, the below of welding tractor chassis 1-1 also is provided with magnetic force adsorbent equipment 1-3, and the signal input part of magnetic force adsorbent equipment 1-3 is connected with control circuit.
Parallel supporting setting with described active walked frame 2-4 be driven walked frame 2-3, be symmetricly set on welding tractor chassis 1-1 opposite side, driven walked frame 2-3 and welding tractor chassis 1-1 form and are slidingly matched, cooperate to such an extent that pinch wheels 1-5 is positioned at driven walked frame 2-3 one end by driven contour wheel wheel assembly with driven contour wheel 1-8b, the driving mechanism of driven walked frame 2-3 is arranged on the first cylinder 2-1 assembly on the 1-1 opposite side of welding tractor chassis.
Include in the structure of described automatic welder(welding machine): be slidingly connected at welding stand 2-7 on the 1-1 of welding tractor chassis by rail plate 2-9, be installed in welding stand 2-7 one end welding motor 1-11, welding motor 1-11 is connected with swing rocking bar 1-13 by gear 1-12, swing rocking bar 1-13 is positioned on the 1-1 of welding tractor chassis by gear shaft 1-14, and the prolongation of swing rocking bar 1-13 is welded with the fixedly welding gun positioning sleeve 1-15 of welding gun 1-10.The auxiliary welding locating wheel 1-16 that be used for profiling welding supporting with welder also is housed on the 1-1 of welding tractor chassis.
Include in the contour wheel wheel assembly structure: drive motors 1-7 and active contour wheel 1-8 positioning link bearing pin 1-9 are sleeved on the outer adapter sleeve of bearing pin 1-9.Include in the driven contour wheel wheel assembly structure: an end and driven contour wheel 1-5 and locate connector on the driven walked frame 2-3.Include in the structure of the universal detent mechanism of magnetic: the universal wheel 1-4, ball-type wheel 1-2, the magnetic force adsorbent equipment 1-3 that are arranged on the chassis 1-1 bottom of dolly type profiling welding machine.
The present invention in use, according to the needs of actual welding, with CO
2/ MA automatic welder(welding machine) is used, and shared source of the gas adopts the control of PLC control system, the wire feeder automatic feeding.
During welding, earlier 3 of profiling mould plates are welded on the flat work pieces 3-1, earlier anti-shape welding machine of little vehicle and profiling mould plate 3 are fixedly clamped, initiatively contour wheel 1-8a cooperates with pinch wheels 1-5 3 clampings of profiling mould plate, driven contour wheel 1-8b of the while pinch wheels 1-5 supporting with it equally also clamps with profiling mould plate 3, controls second cylinder 2-6 promotion active walked frame 2-4 and slide, drive initiatively contour wheel 1-8 and pinch wheels 1-5 realization profile fastener on active slip guide rail 2-5; Control the first cylinder 2-1 simultaneously and promote driven walked frame 2-3 in rail plate 2-2 slip, the driven contour wheel 1-8b of the drive pinch wheels 1-5 profile fastener supporting with it; Controlling weld cylinder 2-8 promotion welding stand 2-7 simultaneously clamps at welding rail plate 2-9 slip, drive welding locating wheel 1-16 realization welding gun automatic profiling; Open magnetic force adsorbent equipment 1-3 simultaneously, realize absorption automatically; Then, according to the needs of actual welding, control motor 1-7 drives initiatively contour wheel 1-8a rotation, control welding motor 1-11 and realize adjusting amplitude, the frequency of welding gun, thereby the automatic profiling of realizing whole device clamps, automatic profiling is walked, welding automatically.
The present invention can adjust the profiling speed of travel, pass through amplitude, frequency that welding motor 1-11 adjusts welding gun by the profiling motor by regulating air pressure adjustment profile fastener power, adjusting the magnetic force absorption affinity by electrical equipment.
Referring to accompanying drawing 4, the simple and easy schematic diagram of the present invention.Initiatively contour wheel 1-8a and supporting pinch wheels 1-5, driven contour wheel 1-8b and supporting pinch wheels 1-5 clamp profiling mould plate 3 simultaneously, weld locating wheel 1-16 assist location welding gun simultaneously, arc welding gun head 1-10b is along with the direction swing of arrow, and the weld seam between profiling mould plate 3 and flat work pieces 1-3 welds.
Claims (6)
1. the small curvature radius curved welding seam is realized the method for profiling weldering, and this method realizes by means of dolly type profiling welding machine with as the cooperation of the curve surface work pieces of template, it is characterized in that: specifically may further comprise the steps:
1), curve surface work pieces is made as profiling mould plate (3) according to designing requirement;
2), the shape spot welding of profiling mould plate (3) according to weld seam is positioned on the flat work pieces (3-1) that is welded;
3), the active contour wheel (1-8a) of dolly type profiling welding machine and the pinch wheels (1-5) of driven contour wheel (1-8b) and correspondence thereof are set on the profiling mould plate (3), the air line distance guiding mechanism of automatic welding gun is located between the linear driving mechanism of pinch wheels (1-5), and the walking mechanism of dolly type profiling welding machine is positioned on the flat work pieces (3-1) that is welded by the magnetic omnidirectional mechanism;
4), adjust dolly type profiling welding machine arrive design starting the arc position from the pendulum-type arc welding gun head,
5), starting initiatively, contour wheel (1-8a) moves along profiling mould plate (3) motion, drive dolly type profiling welding machine, make the arc welding gun head (1-10b) of dolly type profiling welding machine begin to begin skimulated motion according to the arithmetic mean of instantaneous value of active contour wheel (1-8a) and driven contour wheel (1-8b) displacement coordinate
6), flap, finish the welding of small curve curved welding seam along the pattern guiding by welding motor (1-11) driving carrying out wire feed, arc welding gun head (1-10b) setpoint frequency.
2. small curvature radius curved welding seam according to claim 1 is realized the method for profiling weldering, it is characterized in that: the pinch wheels described in the step 3) (1-5) is connected with supporting first cylinder (2-1), the straight line guiding mechanism that second cylinder (2-6) drives.
3. small curvature radius curved welding seam according to claim 1 is realized the method for profiling weldering, it is characterized in that: the welding locating wheel (1-16) that is provided with auxiliary automatic welding gun location between the pinch wheels described in the step 3) (1-5).
4. small curvature radius curved welding seam according to claim 1 is realized the method for profiling weldering, it is characterized in that: include in the structure of the universal detent mechanism of magnetic described in the step 3): the universal wheel (1-4), ball-type wheel (1-2), the magnetic force adsorbent equipment (1-3) that are arranged on the bottom, welding tractor chassis (1-1) of dolly type profiling welding machine.
5. small curvature radius curved welding seam according to claim 1 is realized the method for profiling weldering, and it is characterized in that: the profiling walking process of dolly type profiling welding machine on profiling mould plate (3) described in the step 3) is:
3-1), the clamp mechanism of regulating the active walking of dolly type profiling welding machine, under the adjusting of second cylinder (2-6), making initiatively, contour wheel (1-8a) clamps profiling mould plate (3) with pinch wheels (1-5); First cylinder (2-1) according to the shape of profiling mould plate (3), is regulated driven contour wheel (1-8b) pinch wheels (1-5) profile fastener supporting with it simultaneously;
3-2), the magnetic force adsorbent equipment (1-3) of the below of welding tractor chassis (1-1) opens, and whole vehicle body is adsorbed on the welded piece;
3-3), under the drive of drive motors (1-7), initiatively contour wheel (1-8a) is realized the profiling walking, during curved section, second cylinder (2-6) drives the straight line guiding mechanism and constantly regulates initiatively contour wheel (1-8a) and pinch wheels (1-5) clamping gauge finder, initiatively the moment of torsion of walked frame (2-4) changes simultaneously, the corresponding simultaneously direction of adjusting welding tractor chassis (1-1) of bottom universal wheel (1-4) and ball-type wheel (1-2);
3-4), the change of welding tractor chassis (1-1) direction simultaneously, first cylinder (2-1) drives the moment of torsion of the driven contour wheel of the corresponding adjustment of straight line guiding mechanism (1-8b), makes driven contour wheel (1-8b) and the direction and the clamping of pinch wheels (1-5) make corresponding change.
6. small curvature radius curved welding seam according to claim 1 is realized the method for profiling weldering, and it is characterized in that: the scope of described small curvature radius curved welding seam radius of curvature is: minimum profile curvature radius 〉=120mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101287797A CN101837500B (en) | 2010-03-22 | 2010-03-22 | Method for realizing profiling welding of curve welding seam with small curvature radius |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101287797A CN101837500B (en) | 2010-03-22 | 2010-03-22 | Method for realizing profiling welding of curve welding seam with small curvature radius |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101837500A CN101837500A (en) | 2010-09-22 |
| CN101837500B true CN101837500B (en) | 2011-11-30 |
Family
ID=42741295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101287797A Active CN101837500B (en) | 2010-03-22 | 2010-03-22 | Method for realizing profiling welding of curve welding seam with small curvature radius |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101837500B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430843B (en) * | 2011-11-03 | 2013-07-31 | 中国石油天然气集团公司 | Creeping trolley for narrow-gap automatic welding |
| CN102489909A (en) * | 2011-11-14 | 2012-06-13 | 无锡汉神电气有限公司 | Bilateral wheel profiling corner welding trolley device |
| CN106270972A (en) * | 2016-09-18 | 2017-01-04 | 中国二十二冶集团有限公司 | Fan-shaped steel plate splicing welding method |
| CN111098069A (en) * | 2019-12-31 | 2020-05-05 | 安徽中联绿建钢构科技有限公司 | Welding system for full-automatic welding |
| CN112157329B (en) * | 2020-09-23 | 2022-07-15 | 山东水泊焊割设备制造有限公司 | H-shaped beam longitudinal seam automatic welding machine and welding head |
| CN112548423A (en) * | 2020-12-10 | 2021-03-26 | 宁波杭钢富春管业有限公司 | Single-gun and double-gun automatic welding equipment for lock catch |
| CN114769820B (en) * | 2022-05-20 | 2024-04-12 | 江南造船(集团)有限责任公司 | Automatic fillet welding trolley |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201079899Y (en) * | 2007-09-29 | 2008-07-02 | 天津市锐新散热器有限公司 | Elliptical pipe profiling welding machine |
| CN101417362A (en) * | 2008-11-13 | 2009-04-29 | 杭州顿力长三角高新技术成果转化中心有限公司 | Profiling plane welding special device and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS527839A (en) * | 1975-07-09 | 1977-01-21 | Kubota Ltd | Mechanically profile welding device |
| JPS61195782A (en) * | 1985-02-25 | 1986-08-30 | Mitsubishi Heavy Ind Ltd | Welder automatic control device |
-
2010
- 2010-03-22 CN CN2010101287797A patent/CN101837500B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201079899Y (en) * | 2007-09-29 | 2008-07-02 | 天津市锐新散热器有限公司 | Elliptical pipe profiling welding machine |
| CN101417362A (en) * | 2008-11-13 | 2009-04-29 | 杭州顿力长三角高新技术成果转化中心有限公司 | Profiling plane welding special device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101837500A (en) | 2010-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101837500B (en) | Method for realizing profiling welding of curve welding seam with small curvature radius | |
| CN102059467B (en) | Automatic horizontal position welding device for circular arc groove welds of elbow made of steel plate | |
| CN102059434B (en) | Intersecting line girth welding device | |
| CN102689083B (en) | Autonomous mobile robot system for metal-inert-gas (MIG)/metal-active-gas (MAG) multilayer multipass welding of large thick plate | |
| CN201720583U (en) | Minitype automatic profiling welding tractor | |
| CN106041260A (en) | Lightweight rail-mounted five-axis welding robot | |
| CN105458475B (en) | A kind of twin wire automatic welding hidden arc welding device and its localization method and automatic seam tracking method | |
| CN102114565A (en) | Pneumatic floating contact type welding automatic tracking device | |
| CN113102865B (en) | Automatic welding equipment for welding square steel pipe plate elevation angle and flat fillet weld | |
| CN202317381U (en) | Gantry welding device | |
| CN105583502A (en) | Semi-automatic welding small vehicle | |
| CN102166681A (en) | Automatic overhead welding system for external horizontal fillet welds between end wall and end beam of gondola car | |
| CN202726344U (en) | Angle adjusting mechanism of automatic welder | |
| CN102166682A (en) | Weld tracking device | |
| CN202106130U (en) | Weld joint tracking device | |
| CN202240082U (en) | Automatic elevation welding system of horizontal welding seams outside end wall and end beam of open wagon | |
| CN216680400U (en) | Double-head H-shaped steel angle seam intelligent back chipping machine | |
| CN202411623U (en) | Automatic welding machine for side frame supporting seat | |
| CN214815581U (en) | Gas shielded welding machinery tracking means | |
| CN201833099U (en) | Novel low-magnetic steel welding device | |
| CN201659359U (en) | Automatic welding device of intercooler | |
| CN213224689U (en) | Automatic welding tool for longitudinal seam of cylinder | |
| CN104128695A (en) | Guiding device matched with workpieces for welding tractor and automatic welding tractor | |
| CN202097518U (en) | Automatic welding machine | |
| CN208099678U (en) | The full-automatic welding system of ladle concrete steel plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 050000 No. 81, Hezuo Road, Shijiazhuang City, Xinhua District, Shijiazhuang City, Hebei Province Patentee after: Hebei Mechanical Research and Design Institute Co.,Ltd. Address before: 050000 No. 81, cooperation Road, Shijiazhuang, Hebei Patentee before: MECHANICAL SCIENCE RESEARCH & DESIGN INSTITUTE OF HEBEI PROVINCE |