CN111390450B - Semi-automatic welding device and welding method for stiffening ring of hydroelectric penstock - Google Patents
Semi-automatic welding device and welding method for stiffening ring of hydroelectric penstock Download PDFInfo
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- CN111390450B CN111390450B CN202010371394.7A CN202010371394A CN111390450B CN 111390450 B CN111390450 B CN 111390450B CN 202010371394 A CN202010371394 A CN 202010371394A CN 111390450 B CN111390450 B CN 111390450B
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- welding
- steel pipe
- stiffening ring
- trolley
- pressure steel
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- 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
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0294—Transport carriages or vehicles
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a semi-automatic welding device for a stiffening ring of a hydroelectric pressure steel pipe, which comprises: the roll welding trolley is supported at the lower part of the pressure steel pipe through a roller and can drive the pressure steel pipe to rotate through a driving roller; the support platform is horizontally arranged beside the roll welding trolley, and a platform is constructed for the welding trolley to move on; the bottom of the welding trolley is supported on the supporting platform through four universal wheels, a first roller device, a second roller device and a welding gun are arranged on the welding trolley, a first permanent magnet and a second permanent magnet are further arranged on the welding trolley, the first permanent magnet is close to the pressure steel pipe and the second permanent magnet is close to the stiffening ring. The semi-automatic welding device for the stiffening ring of the hydroelectric penstock changes the welding direction of the stiffening ring, and improves the welding efficiency and the welding precision; the advantages of the roll welding trolley are utilized, and the transfer process is reduced.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a semi-automatic welding device and a welding method for a stiffening ring of a hydroelectric pressure steel pipe.
Background
In the manufacturing and installation engineering of water conservancy and hydropower steel pipes, steel pipes are generally assembled and welded into sections within 4 meters, and in recent years, the construction of domestic large hydropower stations, water diversion engineering and petroleum pipeline engineering are increasingly increased, wherein the production and manufacturing of pressure steel pipes are indispensable. In the case of hydroelectric power engineering, penstock is a steel pipe used to carry extremely high water pressure currents. With the improvement of the technological level and production equipment, some high-strength structural steels are also applied to the manufacture of the pressure steel pipes, and the manufacturing requirements and standards are higher and higher. The traditional stiffening ring welding method is vertical assembly, namely, a steel pipe is vertically placed (a pipe orifice is parallel to the ground), assembly is carried out by hoisting with a crown block or a crane, and welding is carried out by adopting manual arc welding or semi-automatic equipment, so that the operation process is complex, the welding deformation is large, and the production efficiency is very low. Meanwhile, the traditional welding method of the stiffening ring also has requirements on the specification of the steel pipe, namely the steel pipe cannot be too long, otherwise, equipment such as a crane is needed in the process of erecting the steel pipe, and the overlong steel pipe also brings troubles to welding after erecting, namely welding equipment and welding workers are needed to be placed at a high position, obviously, not only is the safety risk increased, but also the welding cost is increased.
Disclosure of Invention
In view of the above technical problems, embodiments of the present invention provide a semi-automatic welding device and a welding method for stiffening rings of a hydroelectric penstock, which solve the problems of low welding efficiency and high operation difficulty of vertical assemblies of hydroelectric penstocks with stiffening rings by a horizontal welding method.
The utility model provides a semi-automatic formula water and electricity penstock stiffening ring welding set, includes:
the roll welding trolley is supported at the lower part of the pressure steel pipe through a roller and can drive the pressure steel pipe to rotate through a driving roller;
the support platform is horizontally arranged beside the roll welding trolley, and a platform is constructed for the welding trolley to move on;
the bottom of the welding trolley is supported on the supporting platform through four universal wheels, and a first roller device, a second roller device and a welding gun are arranged at the upper part of the welding trolley, wherein the first roller device is in rolling connection with the outer surface of the pressure steel pipe, the second roller device is in rolling connection with the side surface of the stiffening ring, and a muzzle of the welding gun corresponds to the connecting position of the pressure steel pipe and the stiffening ring so as to weld the connecting position; the welding trolley is further provided with a first permanent magnet and a second permanent magnet, wherein the first permanent magnet is close to the pressure steel pipe to generate magnetic adsorption on the pressure steel pipe, and the second permanent magnet is close to the stiffening ring to generate magnetic adsorption on the stiffening ring.
The second permanent magnet is arranged close to the pressure steel pipe, and the first permanent magnet and the second permanent magnet are arranged on two sides of the welding trolley, so that the welding trolley can be enabled to be in close contact with the pressure steel pipe and the stiffening ring respectively under the action of magnetic adsorption.
The welding gun is connected to the welding trolley in a twisting mode.
The first roller devices comprise two rollers which are arranged at two ends of the welding trolley on the same side in a discrete arrangement mode.
A semi-automatic welding method for stiffening rings of hydroelectric penstock comprises the following steps:
placing the pressure steel pipe on a roll welding trolley;
arranging a supporting platform beside the roll welding trolley, and arranging a welding trolley on the supporting platform;
the first roller device of the welding trolley is abutted against the side face of the pressure steel pipe, and then the second roller device of the welding trolley is abutted against the stiffening ring under the magnetic adsorption action of the second permanent magnet;
and controlling the welding gun to enable the muzzle of the welding gun to be close to the connecting position of the pressure steel pipe and the stiffening ring so as to carry out welding operation.
Has the advantages that:
according to the semi-automatic hydroelectric penstock stiffening ring welding device provided by the invention, the welding trolley and the penstock are horizontally aligned through the welding trolley supporting platform; the distance between the welding trolley and the pressure steel pipe is unchanged through the permanent magnet and the roller device on the side of the pressure steel pipe; the distance between the welding trolley and the stiffening ring is unchanged through the stiffening ring side permanent magnet and the roller device, and the relative position of the welding gun to the pressure steel pipe and the stiffening ring is unchanged; the invention is particularly suitable for welding the stiffening ring with a long pipe structure, and can change the welding direction of the stiffening ring on the existing steel pipe, thereby ensuring the welding efficiency and the welding precision; the advantages of the roll welding trolley are utilized, and the procedures of transferring and turning over the steel pipe are reduced.
Drawings
The invention may be better understood from the following description of specific embodiments thereof taken in conjunction with the accompanying drawings, in which:
fig. 1 is a basic structural view of the present invention.
Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings in which like or similar reference characters refer to the same or similar parts.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific configuration and algorithm set forth below, but rather covers any modification, replacement or improvement of elements, components or algorithms without departing from the spirit of the invention. In the following description, well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention.
Example embodiments will now be described with reference to the accompanying drawings, which may be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.
As shown in fig. 1, an embodiment of the present invention provides a semi-automatic welding device for stiffening rings of hydroelectric pressure steel pipes, including:
the roll welding trolley 1 is supported at the lower part of the pressure steel pipe through a roller and can drive the pressure steel pipe 5 to rotate through a driving roller; the roll welding trolley 1 is provided with two pairs of rollers which are supported at two different positions of the pressure steel pipe 5, and the rollers are driven by a reducer driven by a motor;
the supporting platform 2 is horizontally arranged beside the roll welding trolley, and a platform is constructed for the welding trolley to move on; the supporting platform can be a steel plate which is horizontally arranged, and can also be a concrete platform;
the bottom of the welding trolley 3 is supported on a supporting platform through four universal wheels 30, a first roller device 31, a second roller device 31 and a welding gun 33 are arranged at the upper part of the welding trolley 3, wherein the first roller device 31 is in rolling connection with the outer surface of the pressure steel pipe 5, the second roller device 32 is in rolling connection with the side surface of the stiffening ring 4, and the muzzle of the welding gun corresponds to the connecting position of the pressure steel pipe and the stiffening ring so as to weld the connecting position; the welding trolley 3 is further provided with a first permanent magnet 34 and a second permanent magnet 35, wherein the first permanent magnet 34 is arranged close to the penstock 5 to generate magnetic attraction on the penstock, and the second permanent magnet 35 is arranged close to the stiffening ring 4 to generate magnetic attraction on the stiffening ring 4.
The second permanent magnet 35 is disposed close to the penstock 5, and the first permanent magnet 34 and the second permanent magnet 35 are disposed on two sides of the welding carriage 3, so that the welding carriage 3 can be urged to tightly contact the penstock 5 and the stiffening ring 4 by two roller devices under the action of magnetic attraction.
The welding gun 33 is connected to the welding carriage 3 in a rotatable manner, so that the welding gun 33 can be angularly adjusted, usually with a barrel that can be deformed or even telescopically adjusted.
The first roller devices 31 include two first roller devices, which are different from the first roller device 31 in fig. 1, which is located in the center of the side surface of the welding carriage 3, and are arranged at two ends of the same side edge of the welding carriage in two separate arrangement modes, so that the welding carriage is ensured to be parallel to the pressure steel pipe in the magnetic adsorption process.
The embodiment of the invention also provides a semi-automatic welding method for the stiffening ring of the hydroelectric pressure steel pipe, which comprises the following steps:
placing the pressure steel pipe on a roll welding trolley;
arranging a supporting platform beside the roll welding trolley, and arranging a welding trolley on the supporting platform;
the first roller device of the welding trolley is abutted against the side face of the pressure steel pipe, and then the second roller device of the welding trolley is abutted against the stiffening ring under the magnetic adsorption action of the second permanent magnet;
and controlling the welding gun to enable the muzzle of the welding gun to be close to the connecting position of the pressure steel pipe and the stiffening ring so as to carry out welding operation.
Has the advantages that:
according to the semi-automatic hydroelectric penstock stiffening ring welding device provided by the invention, the welding trolley and the penstock are horizontally aligned through the welding trolley supporting platform; the distance between the welding trolley and the pressure steel pipe is unchanged through the permanent magnet and the roller device on the side of the pressure steel pipe; the distance between the welding trolley and the stiffening ring is unchanged through the stiffening ring side permanent magnet and the roller device, and the relative position of the welding gun to the pressure steel pipe and the stiffening ring is unchanged; the invention is particularly suitable for welding the stiffening ring with a long pipe structure, and can change the welding direction of the stiffening ring on the existing steel pipe, thereby ensuring the welding efficiency and the welding precision; the advantages of the roll welding trolley are utilized, and the procedures of transferring and turning over the steel pipe are reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to this embodiment will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It will be appreciated by persons skilled in the art that the above embodiments are illustrative and not restrictive. Different features which are present in different embodiments may be combined to advantage. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art upon studying the specification and the claims. In the claims, the term "comprising" does not exclude other means or steps; the indefinite article "a" does not exclude a plurality; the terms "first" and "second" are used to denote a name and not to denote any particular order.
Claims (3)
1. The welding method of the semi-automatic hydroelectric penstock stiffening ring welding device is characterized by comprising the following steps of:
the roll welding trolley is supported at the lower part of the pressure steel pipe through a roller and can drive the pressure steel pipe to rotate through a driving roller;
the support platform is horizontally arranged beside the roll welding trolley, and a platform is constructed for the welding trolley to move on;
the bottom of the welding trolley is supported on the supporting platform through four universal wheels, and a first roller device, a second roller device and a welding gun are arranged at the upper part of the welding trolley, wherein the first roller device is in rolling connection with the outer surface of the pressure steel pipe, the second roller device is in rolling connection with the side surface of the stiffening ring, and a muzzle of the welding gun corresponds to the connecting position of the pressure steel pipe and the stiffening ring so as to weld the connecting position; the welding trolley is also provided with a first permanent magnet and a second permanent magnet, wherein the first permanent magnet is arranged close to the pressure steel pipe to generate magnetic adsorption on the pressure steel pipe, and the second permanent magnet is arranged close to the stiffening ring to generate magnetic adsorption on the stiffening ring;
the first roller devices comprise two rollers which are arranged at two ends of the welding trolley on the same side in a discrete arrangement mode;
the method comprises the following steps:
placing the pressure steel pipe on a roll welding trolley;
arranging a supporting platform beside the roll welding trolley, and arranging a welding trolley on the supporting platform;
the first roller device of the welding trolley is abutted against the side face of the pressure steel pipe, and then the second roller device of the welding trolley is abutted against the stiffening ring under the magnetic adsorption action of the second permanent magnet;
and controlling the welding gun to enable the muzzle of the welding gun to be close to the connecting position of the pressure steel pipe and the stiffening ring so as to carry out welding operation.
2. Welding method according to claim 1,
the second permanent magnet is arranged close to the pressure steel pipe, and the first permanent magnet and the second permanent magnet are arranged on two sides of the welding trolley, so that the welding trolley can be enabled to be in close contact with the pressure steel pipe and the stiffening ring respectively under the action of magnetic adsorption.
3. Welding method according to claim 1,
the welding gun is connected to the welding trolley in a twisting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371394.7A CN111390450B (en) | 2020-05-06 | 2020-05-06 | Semi-automatic welding device and welding method for stiffening ring of hydroelectric penstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371394.7A CN111390450B (en) | 2020-05-06 | 2020-05-06 | Semi-automatic welding device and welding method for stiffening ring of hydroelectric penstock |
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| Publication Number | Publication Date |
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| CN111390450A CN111390450A (en) | 2020-07-10 |
| CN111390450B true CN111390450B (en) | 2021-07-27 |
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| CN202010371394.7A Active CN111390450B (en) | 2020-05-06 | 2020-05-06 | Semi-automatic welding device and welding method for stiffening ring of hydroelectric penstock |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001081B (en) * | 2021-02-02 | 2024-05-07 | 中国水电四局（兰州）机械装备有限公司 | Stiffening ring trolley |
| CN113001092B (en) * | 2021-02-02 | 2023-01-06 | 中国水电四局（兰州）机械装备有限公司 | Six-equal-division steel pipe stiffening ring assembling equipment |
| CN113231775A (en) * | 2021-04-21 | 2021-08-10 | 中国水电四局（兰州）机械装备有限公司 | Pressure steel pipe stiffening ring installation fixing device |
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|---|---|---|---|---|
| CN106238993A (en) * | 2016-09-28 | 2016-12-21 | 葛洲坝机械工业有限公司 | One is applicable to penstock stiffening ring automatic welding system and welding method |
| CN207547836U (en) * | 2017-12-02 | 2018-06-29 | 中国水利水电第三工程局有限公司 | A kind of penstock stiffening ring fillet weld operating platform |
| CN208408949U (en) * | 2017-12-25 | 2019-01-22 | 中建钢构四川有限公司 | A kind of waveform steel automatic welding equipment |
| CN208825803U (en) * | 2018-09-10 | 2019-05-07 | 中国水利水电第五工程局有限公司 | A kind of penstock stiffening ring fillet weld seam device |
| CN209006923U (en) * | 2018-07-03 | 2019-06-21 | 广东港重绿建科技有限公司 | Welding tractor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100467965B1 (en) * | 2002-02-20 | 2005-01-24 | 대우조선해양 주식회사 | Coaming automatic welding carriage of LNG carrier |
| KR101186114B1 (en) * | 2011-03-02 | 2012-09-27 | (주)청송산업기계 | a hand filet welding carriage |
| KR101616397B1 (en) * | 2014-09-05 | 2016-04-28 | 삼성중공업 주식회사 | Mobile Apparatus |
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2020
- 2020-05-06 CN CN202010371394.7A patent/CN111390450B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238993A (en) * | 2016-09-28 | 2016-12-21 | 葛洲坝机械工业有限公司 | One is applicable to penstock stiffening ring automatic welding system and welding method |
| CN207547836U (en) * | 2017-12-02 | 2018-06-29 | 中国水利水电第三工程局有限公司 | A kind of penstock stiffening ring fillet weld operating platform |
| CN208408949U (en) * | 2017-12-25 | 2019-01-22 | 中建钢构四川有限公司 | A kind of waveform steel automatic welding equipment |
| CN209006923U (en) * | 2018-07-03 | 2019-06-21 | 广东港重绿建科技有限公司 | Welding tractor |
| CN208825803U (en) * | 2018-09-10 | 2019-05-07 | 中国水利水电第五工程局有限公司 | A kind of penstock stiffening ring fillet weld seam device |
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| CN111390450A (en) | 2020-07-10 |
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