CN110238600A - The butt-joint process of different wall thickness steel pipe - Google Patents
The butt-joint process of different wall thickness steel pipe Download PDFInfo
- Publication number
- CN110238600A CN110238600A CN201910395890.3A CN201910395890A CN110238600A CN 110238600 A CN110238600 A CN 110238600A CN 201910395890 A CN201910395890 A CN 201910395890A CN 110238600 A CN110238600 A CN 110238600A
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- Prior art keywords
- steel pipe
- welding
- face
- gear
- fixedly mounted
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
-
- 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
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- 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
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
- B23K2103/05—Stainless steel
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses the butt-joint process of different wall thickness steel pipe, including pedestal, the sliding groove of opening upwards is symmetrically equipped on the base top end face, it is rotatably assorted between the right side sliding groove and the chassis left side end face and gear with helical teeth axis is installed, the first handwheel is fixedly mounted in the gear with helical teeth axis left end face, when being docked, steel pipe is passed through into through-hole and scroll chuck, scroll chuck is adjusted by steel tube clamping, rotate the second handwheel, the first auxiliary wheel and the second auxiliary wheel is set to support steel pipe, keep the clamping length of left and right sides steel pipe identical by grid by being arranged, steel pipe is equipped with the support device of auxiliary, enable left and right sides steel pipe in unified hub position, convenient for docking, the steel pipe of the left and right sides is all clamped when welding, making steel pipe, position will not sideslip in weld heating, keep the effect of welding more preferable.
Description
Technical field
The present invention relates to tubing welding fields, the specially butt-joint process of different wall thickness steel pipe.
Background technique
Stainless steel tube is in welding, it is necessary first to dock to two stainless steel tubes, the length of steel pipe is longer, when docking
The center of steel pipe is not easy to be aligned very much, and searching of the different steel pipe of wall thickness in center is more difficult, welds after alignment
The position sideslip for being easiest to make two steel pipes is connect, steel-pipe welding is made to bend, quality generates defect.
Summary of the invention
The purpose of the present invention is to provide the butt-joint process of different wall thickness steel pipe, in the prior art above-mentioned scarce for overcoming
It falls into.
The butt-joint process of the different wall thickness steel pipe of embodiment according to the present invention, including pedestal, interior be equipped with of the pedestal are moved
Dynamic component, the moving parts include the sliding support base being mounted on the base top end face of bilateral symmetry, the pedestal top
It is symmetrically equipped with the sliding groove of opening upwards on end surface, is rotatablely installed gear with helical teeth, the support in the sliding groove
Seat bottom end face is equipped with the tooth that can be matched with the gear with helical teeth, and the gear with helical teeth can make left and right when rotating
The support base of two sides is slided towards anti-direction, and support clamping section part, the support clamping section part packet are equipped in the support base
The scroll chuck for being rotatably assorted and being mounted on one side end face of support base is included, the scroll chuck can be by steel tube clamping, institute
It states and is equipped with the perforative through-hole in left and right in support base, the through-hole bottom wall is equipped with the supporting table sliding slot of opening upwards, the support
The Auxiliary support that is slidably installed in platform sliding slot platform is rotatablely installed and can be carried out to steel pipe in the Auxiliary support platform top end surface
First auxiliary wheel of Auxiliary support, the first hinge bar of the symmetrical hinged installation in front and back, described in the Auxiliary support platform top end surface
Hinged second auxiliary wheel, second auxiliary wheel are worked in coordination together with first auxiliary wheel on end on the upside of first hinge bar
The center of supporting steel pipe, the center for guaranteeing steel pipe and the scroll chuck point-blank, is gone back on the base top end face
Equipped with the welding assembly welded to steel pipe, the welding assembly includes cylinder, and the cylinder output shaft connects gas on end face
Link block is fixedly mounted in the cylinder axis top end surface in cylinder shaft, and being fixedly mounted on the link block bottom end face can carry out
Steel pipe is clamped by the welding coil of weld heating when being symmetrically hingedly mounted on welding on described link block or so end face
Clamping jaw, the clamping jaw can be in welding by steel tube clamping, and the welding assembly further includes being fixedly mounted on the weldering
The block support base on front side of supporting walls is connect, be slidably installed slide bar on the block support base, fixed in the slide bar back end surface
Block is installed, the block can be used as using by grid in steel tube clamping.
Further technical solution, the moving parts further include being rotatably assorted to be mounted on the right side sliding groove and described
The first handwheel, institute is fixedly mounted in the gear with helical teeth axis left end face in gear with helical teeth axis between chassis left side end face
It states gear with helical teeth axis and the gear with helical teeth is fixedly mounted, the support base is slidably matched with the gear with helical teeth.
Further technical solution, the support clamping section part further include the gear cavity being arranged in the support base, institute
It states to be rotatably assorted between one side end face of gear cavity and the support base and hand wheel shaft is installed, fixed peace in the hand wheel shaft end face outside
It fills the second handwheel, on the hand wheel shaft inner side end, is located in the gear cavity and first gear is fixedly mounted, the supporting table is sliding
It is rotatably assorted between slot and the gear cavity and thread spindle is installed, be threadedly engaged between the thread spindle and the Auxiliary support platform.
Further technical solution, the support clamping section part further include in the Auxiliary support platform top end surface front and back it is right
Claim to be equipped with slide-bar slot, slide-bar is fixedly mounted between inner wall before and after the slide-bar slot, be slidably installed sliding block on the slide-bar, institute
It states and buffer spring is fixedly mounted between sliding block and slide-bar slot side inner wall, the second hinge bar is hingedly installed on the sliding block,
Second hinge bar is rotatably assorted with second auxiliary wheel.
Further technical solution, the welding assembly further include the welding being fixedly mounted on the base top end face
Supporting walls are fixedly mounted in the welding supporting walls top end surface.
Further technical solution, the welding assembly further include the clamping jaw, and the clamping jaw and setting are in the welding
Clamping jaw sliding slot is put into supporting walls to be slidably matched.
Further technical solution, the welding assembly further include the water for the offer cooling water being arranged in the pedestal
Pump is connected between the water pump and the block and the water pipe that butt welding taps into row conveying cooling water is fixedly mounted.
Further technical solution, the welding assembly further include being hingedly mounted in the block support base top end surface
The second pull rod, second pull rod hingedly installs with first pull rod.
Further technical solution, the welding assembly further include that the supporting table being arranged in the supporting table pedestal is slided
Slot is slidably installed in the supporting table sliding slot and welds supporting table, the welding supporting table and the supporting table sliding slot bottom wall
Between support spring is fixedly mounted.
The beneficial effects of the present invention are: the present invention keeps the clamping length of left and right sides steel pipe identical by being arranged by grid, steel
Pipe is equipped with the support device of auxiliary, enables left and right sides steel pipe in unified hub position, and convenient for docking, when welding will left and right two
The steel pipe of side all clamps, make steel pipe in weld heating position will not sideslip, make welding effect it is more preferable, be worthy to be popularized.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the direction A-A schematic cross-sectional view in Fig. 1；
Fig. 3 is the direction B-B schematic cross-sectional view in Fig. 1；
Fig. 4 is the enlarged structure schematic diagram in Fig. 3 at C.
Specific embodiment
Below with reference to Fig. 1-4, the present invention is described in detail, for sake of convenience, now such as to hereafter described orientation regulation
Under: hereafter described front-rear direction up and down is consistent with the front-rear direction up and down of Fig. 1 projection relation itself.
Referring to Fig.1-4, the butt-joint process of the different wall thickness steel pipe of embodiment according to the present invention, including pedestal 10, it is described
Moving parts 80 is equipped in pedestal 10, the moving parts 80 includes that bilateral symmetry cunning is mounted in 10 top end surface of pedestal
Support base 15, the sliding groove 14 of opening upwards is symmetrically equipped in 10 top end surface of pedestal, in the sliding groove 14
It is rotatablely installed gear with helical teeth 13,15 bottom end face of support base is equipped with and can match with the gear with helical teeth 13
When rotating the support base 15 of the left and right sides can slide towards anti-direction for tooth, the gear with helical teeth 13, the support base
Support clamping section part 81 is equipped in 15, the support clamping section part 81 includes being rotatably assorted to be mounted on 15 1 side of support base
Scroll chuck 26 on face, the scroll chuck 26 can be by steel tube clampings, and the support base 15 is interior perforative logical equipped with left and right
Hole 25,25 bottom wall of through-hole are equipped with the supporting table sliding slot 22 of opening upwards, and be slidably matched peace in the supporting table sliding slot 22
Auxiliary support platform 23 is filled, rotational installation can carry out the first of Auxiliary support to steel pipe in 23 top end surface of Auxiliary support platform
Auxiliary wheel 24, the first hinge bar 47 of the symmetrical hinged installation in front and back in 23 top end surface of Auxiliary support platform, described first is hinged
Hinged second auxiliary wheel 46 on 47 upside end of bar, second auxiliary wheel 46 are worked in coordination together with first auxiliary wheel 24
Supporting steel pipe, the center of the center for guaranteeing steel pipe and the scroll chuck 26 point-blank, 10 top end surface of pedestal
On be additionally provided with the welding assembly 82 welded to steel pipe, the welding assembly 82 includes cylinder 28,28 output shaft of cylinder
Cylinder axis 29 is connected on end face, and link block 32,32 bottom end of link block is fixedly mounted in 29 top end surface of cylinder axis
The welding coil 33 that can carry out weld heating is fixedly mounted on face, the hinged peace of bilateral symmetry on 32 or so the end face of link block
The clamping jaw 31 for being clamped steel pipe when mounted in welding, the clamping jaw 31 can be in welding by steel tube clamping, the weldering
Relay part 82 further includes being fixedly mounted on the block support base 44 for welding 27 front side of supporting walls, on the block support base 44
Be slidably installed slide bar 41, and block 39 is fixedly mounted in 41 back end surface of slide bar, and the block 39 can be used as to be pressed from both sides in steel pipe
Being used by grid when tight.
The moving parts 80 further includes being rotatably assorted to be mounted on the right side sliding groove 14 and 10 left-hand end of the pedestal
The first handwheel 11, the spiral shell is fixedly mounted in 12 left end face of gear with helical teeth axis in gear with helical teeth axis 12 between face
It revolves gear axis 12 and the gear with helical teeth 13 is fixedly mounted, the support base 15 is matched with the gear with helical teeth 13 sliding
It closes, thus the first handwheel 11 of rotation, the rotation of the first handwheel 11 drives gear with helical teeth axis 12 to rotate, 12 turns of gear with helical teeth axis
Dynamic that gear with helical teeth 13 is driven to rotate, the rotation of gear with helical teeth 13 drives support base 15 to move left and right on pedestal 10, to drive
Steel pipe moves left and right in the horizontal direction.
The support clamping section part 81 further includes the gear cavity 18 being arranged in the support base 15, the gear cavity 18 with
It is rotatably assorted between 15 1 side end face of support base and hand wheel shaft 17 is installed, is fixedly mounted in 17 end face outside of hand wheel shaft
Two handwheels 16 on 17 inner side end of hand wheel shaft, are located in the gear cavity 18 and first gear 19, the support are fixedly mounted
It is rotatably assorted between platform sliding slot 22 and the gear cavity 18 and thread spindle 21 is installed, the thread spindle 21 and the Auxiliary support platform 23
Between be threadedly engaged, in use, can be rotated the second handwheel 16, the second handwheel 16 drives first gear 19 and 20 turns of second gear
Dynamic, the rotation of second gear 20 drives thread spindle 21 to rotate, and the rotation of thread spindle 21 makes Auxiliary support platform 23 in supporting table sliding slot 22
It slides up and down, the first auxiliary wheel 24 is allow to support steel pipe.
The support clamping section 81 further include in 23 top end surface of Auxiliary support platform front and back be symmetrically arranged with slide-bar slot
48, slide-bar 49 is fixedly mounted between the 48 front and back inner wall of slide-bar slot, be slidably installed sliding block 51 on the slide-bar 49, described
Buffer spring 52 is fixedly mounted between 48 side inner wall of sliding block 51 and the slide-bar slot, second hinge is hingedly installed on the sliding block 51
Extension bar 50, second hinge bar 50 are rotatably assorted with second auxiliary wheel 46, thus when to be placed on described first auxiliary for steel pipe
When helping on wheel 24, the second auxiliary wheel 46 can be adapted to according to the size of the diameter of steel tube on 24, prevent steel pipe from falling down.
The welding assembly 82 further includes the welding supporting walls 27 being fixedly mounted in 10 top end surface of pedestal, described
It is fixedly mounted in welding 27 top end surface of supporting walls, so as to make 28 pusher cylinder axis 29 of cylinder downwards by starting cylinder 28
Make clamping jaw 31 by steel tube clamping, be powered to sealing wire circle 33, after energization, welding coil 33 can heat steel pipe and weld.
The welding assembly 82 further includes the clamping jaw 31, and the clamping jaw 31 is put in the welding supporting walls 27 with setting
Enter clamping jaw sliding slot 30 to be slidably matched, when cylinder axis 29 starts, sliding up and down for cylinder axis 29 can drive clamping jaw 31 sliding in clamping jaw
Sliding in slot 30, can be by steel tube clamping and relieving.
The welding assembly 82 further includes the water pump 45 for the offer cooling water being arranged in the pedestal 10, the water pump 45
Be connected between the block 39 be fixedly mounted butt welding tap into row conveying cooling water water pipe 40 can be by water when being welded
45 starting of pump, water pump 45 are cooled down after absorbing water by the conveying of water pipe 40.
The welding assembly 82 further includes the second pull rod 43 being hingedly mounted in 44 top end surface of block support base,
Second pull rod 43 and the hingedly installation of the first pull rod 42, so that the second pull rod 43 of promotion, can be used as block 39
Using when steel tube clamping by grid, is pulled along the second pull rod 43, and the steel pipe of the left and right sides is allow to be docking together.
The welding assembly 82 further includes the supporting table sliding slot 36 being arranged in the supporting table pedestal 35, the supporting table
It is slidably installed in sliding slot 36 and welds supporting table 38, it is solid between the welding supporting table 38 and 36 bottom wall of supporting table sliding slot
Dingan County fills support spring 37, and in welding, welding supporting table 38 can be supported steel pipe.
When use: when preparing welding, shaking the second pull rod 43 backward, use block 39 as by grid, by steel pipe
Across through-hole 25 and scroll chuck 26, scroll chuck 26 is adjusted by steel tube clamping, rotates the second handwheel 16, the second handwheel 16 drives
First gear 19 and second gear 20 rotate, and the rotation of second gear 20 drives thread spindle 21 to rotate, and the rotation of thread spindle 21 makes to assist
Supporting table 23 slides up and down in supporting table sliding slot 22, and the first auxiliary wheel 24 and the second auxiliary wheel 46 is allow to support steel pipe,
It after the completion of grid use, shakes the second pull rod 43 and travels forward, rotate the first handwheel 11 manually, the first handwheel 11 drives helical tooth
Gear 13 rotates, and gear with helical teeth 13 drives support base 15 mobile to centre, until the steel pipe contact of the left and right sides, makes left and right two
The steel pipe of side can be docking together, and start cylinder 28,28 pusher cylinder axis 29 of cylinder makes downwards clamping jaw 31 by steel tube clamping, right
It welds coil 33 to be powered, welding coil 33 heats steel pipe and welds, and when welding, starts water pump 45, water pump 45 passes through cooling water
Water pipe 40 carries out transporting out cooling, and welding supporting table 38 can be supported steel pipe.
The beneficial effects of the present invention are: the present invention keeps the clamping length of left and right sides steel pipe identical by being arranged by grid, steel
Pipe is equipped with the support device of auxiliary, enables left and right sides steel pipe in unified hub position, and convenient for docking, when welding will left and right two
The steel pipe of side all clamps, make steel pipe in weld heating position will not sideslip, make welding effect it is more preferable, be worthy to be popularized.
Those skilled in the art can define, can in the case of not departing from overall spirit of the invention and design
To make the various modifications for above embodiments.It falls within the scope of protection of the present invention.Protection scheme of the invention
It is subject to claims appended hereto.
Claims (10)
1. the butt-joint process of different wall thickness steel pipe, including pedestal, it is characterised in that: be equipped with moving parts in the pedestal；It is described
Moving parts includes the sliding support base being mounted on the base top end face of bilateral symmetry, left and right on the base top end face
It is symmetrically arranged with the sliding groove of opening upwards, is rotatablely installed gear with helical teeth in the sliding groove, on the support base bottom end face
Equipped with the tooth that can be matched with the gear with helical teeth, the gear with helical teeth can make the support base of the left and right sides when rotating
It is slided towards anti-direction, support clamping section part is equipped in the support base；
The support clamping section part includes the scroll chuck being mounted on one side end face of support base that is rotatably assorted, the three-jaw
Chuck can be by steel tube clamping, and the support base is interior to be equipped with the perforative through-hole in left and right, and the through-hole bottom wall is equipped with opening upwards
Supporting table sliding slot, be slidably installed in the supporting table sliding slot Auxiliary support platform, in the Auxiliary support platform top end surface
Rotational installation can carry out the first auxiliary wheel of Auxiliary support to steel pipe, the symmetrical hinge in front and back in the Auxiliary support platform top end surface
Connect the first hinge bar of installation, hinged second auxiliary wheel on end on the upside of first hinge bar, second auxiliary wheel with it is described
First auxiliary wheel is worked in coordination supporting steel pipe together, and the center of the center for guaranteeing steel pipe and the scroll chuck is in straight line
On, the welding assembly welded to steel pipe is additionally provided on the base top end face.
2. the butt-joint process of different wall thickness steel pipe according to claim 1, it is characterised in that: the welding assembly includes gas
Cylinder connects cylinder axis on cylinder output shaft end face, link block, the connection is fixedly mounted in the cylinder axis top end surface
The welding coil that can carry out weld heating is fixedly mounted on block bottom end face, described link block or so is symmetrically cut with scissors on end face
Connect the clamping jaw for steel pipe being clamped when being mounted on welding, the clamping jaw can be in welding by steel tube clamping；
The welding assembly further includes the block support base being fixedly mounted on front side of the welding supporting walls, the block support base
On be slidably installed slide bar, block is fixedly mounted in the slide bar back end surface, the block can be used as in steel tube clamping
It is used by grid.
3. the butt-joint process of different wall thickness steel pipe according to claim 1, it is characterised in that: the moving parts further includes
Be rotatably assorted the gear with helical teeth axis being mounted between the right side sliding groove and the chassis left side end face, the helical tooth tooth
The first handwheel is fixedly mounted in wheel shaft left end face, the gear with helical teeth axis and the gear with helical teeth are fixedly mounted, described
Support base is slidably matched with the gear with helical teeth.
4. the butt-joint process of different wall thickness steel pipe according to claim 1, it is characterised in that: the support clamping section part is also
Including the gear cavity being arranged in the support base, be rotatably assorted installation between one side end face of the gear cavity and the support base
Hand wheel shaft, is fixedly mounted the second handwheel in the hand wheel shaft end face outside, on the hand wheel shaft inner side end, is located at the gear
Intracavitary fixed installation first gear is rotatably assorted between the supporting table sliding slot and the gear cavity and installs thread spindle, the spiral shell
It is threadedly engaged between line axis and the Auxiliary support platform.
5. the butt-joint process of different wall thickness steel pipe according to claim 1, it is characterised in that: the support clamping section part is also
It is symmetrically arranged with slide-bar slot including front and back in the Auxiliary support platform top end surface, is fixedly mounted between inner wall before and after the slide-bar slot
Slide-bar, be slidably installed on the slide-bar sliding block, and buffering is fixedly mounted between the sliding block and slide-bar slot side inner wall
Spring hingedly installs the second hinge bar on the sliding block, and second hinge bar is rotatably assorted with second auxiliary wheel.
6. the butt-joint process of different wall thickness steel pipe according to claim 1, it is characterised in that: the welding assembly further includes
The welding supporting walls being fixedly mounted on the base top end face are fixedly mounted in the welding supporting walls top end surface.
7. the butt-joint process of different wall thickness steel pipe according to claim 1, it is characterised in that: the welding assembly further includes
The clamping jaw, the clamping jaw are put into clamping jaw sliding slot in the welding supporting walls with setting and are slidably matched.
8. the butt-joint process of different wall thickness steel pipe according to claim 1, it is characterised in that: the welding assembly further includes
The water pump of offer cooling water in the pedestal is set, fixed installation butt welding is connected between the water pump and the block and is tapped into
The water pipe of row conveying cooling water.
9. the butt-joint process of different wall thickness steel pipe according to claim 1, it is characterised in that: the welding assembly further includes
The second pull rod being hingedly mounted in the block support base top end surface, second pull rod are hingedly pacified with first pull rod
Dress.
10. the butt-joint process of different wall thickness steel pipe according to claim 1, it is characterised in that: the welding assembly also wraps
The supporting table sliding slot being arranged in the supporting table pedestal is included, is slidably installed in the supporting table sliding slot and welds supporting table,
Support spring is fixedly mounted between the welding supporting table and the supporting table sliding slot bottom wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910395890.3A CN110238600B (en) | 2019-05-14 | 2019-05-14 | Butt joint device for steel pipes with different wall thicknesses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910395890.3A CN110238600B (en) | 2019-05-14 | 2019-05-14 | Butt joint device for steel pipes with different wall thicknesses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110238600A true CN110238600A (en) | 2019-09-17 |
| CN110238600B CN110238600B (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910395890.3A Active CN110238600B (en) | 2019-05-14 | 2019-05-14 | Butt joint device for steel pipes with different wall thicknesses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110238600B (en) |
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| CN112872698B (en) * | 2019-12-01 | 2024-05-28 | 常德市嘉惠液压机械有限公司 | Auxiliary fixture for welding round steel pipes |
| CN112872699B (en) * | 2019-12-01 | 2024-05-28 | 常德市嘉惠液压机械有限公司 | But autogiration's fixed frock for welding |
| CN112872699A (en) * | 2019-12-01 | 2021-06-01 | 常德市联嘉机械有限公司 | But fixed frock is used in autogiration's welding |
| CN112872698A (en) * | 2019-12-01 | 2021-06-01 | 常德市联嘉机械有限公司 | Auxiliary tool for welding circular steel pipe |
| CN111112938A (en) * | 2020-03-18 | 2020-05-08 | 江苏神通阀门股份有限公司 | Pipeline welding tool |
| CN111843104A (en) * | 2020-07-27 | 2020-10-30 | 郑州标富科技有限公司 | Intelligent welding equipment |
| CN111843104B (en) * | 2020-07-27 | 2021-03-05 | 中交三航(南通)海洋工程有限公司 | Intelligent welding equipment |
| CN112621090A (en) * | 2020-12-18 | 2021-04-09 | 成都迪锐创橙科技有限公司 | Supporting device for butt welding of paired steel pipes |
| CN112828056A (en) * | 2020-12-25 | 2021-05-25 | 宁波凯明机器制造有限公司 | Dephosphorization system |
| CN113478374A (en) * | 2021-06-15 | 2021-10-08 | 广州大学 | Special reinforced grinding machine for vibration isolation spring |
| CN114311332A (en) * | 2021-11-16 | 2022-04-12 | 海洋石油工程股份有限公司 | Novel efficient submarine pipeline concrete counter weight layer slotting device |
| CN115178867A (en) * | 2022-07-26 | 2022-10-14 | 张小红 | Laser tailor-welding positioning device |
| CN118143557A (en) * | 2024-05-09 | 2024-06-07 | 山东骏玛道机械有限公司 | Welding tool for tractor lifter production |
| CN118371968A (en) * | 2024-05-24 | 2024-07-23 | 水电十四局华南建设发展有限公司 | Water supply pipe welding positioning device |
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