CN222344449U - Device for girth welding between tube plate and short joint - Google Patents
Device for girth welding between tube plate and short joint Download PDFInfo
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- CN222344449U CN222344449U CN202421167885.XU CN202421167885U CN222344449U CN 222344449 U CN222344449 U CN 222344449U CN 202421167885 U CN202421167885 U CN 202421167885U CN 222344449 U CN222344449 U CN 222344449U
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- welding
- guide rail
- connecting rod
- trolley
- short joint
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- 238000003466 welding Methods 0.000 title claims abstract description 72
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 210000002445 nipple Anatomy 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
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Abstract
一种用于管板与短节之间环缝焊接的装置，包括有：环形的导轨(1)，用于沿周向套设在短节(2)的外周并与短节(2)同轴线布置；小车(3)，设于导轨(1)的外围，并在驱动机构的驱动下能沿导轨(1)周向移动；与小车(3)约束在一起的连接杆(4)，沿轴向穿设在导轨(1)的内围，从而使得连接杆(4)的第一端部能伸入短节(2)内并与管板相对；焊枪(5)，设于所述连接杆(4)的第一端部，且该焊枪(5)的枪头用于对应所述短节(2)与管板之间的环缝。与现有技术相比，本实用新型能提高焊接效率以及焊缝质量。
A device for welding annular seams between a tube sheet and a short section comprises: an annular guide rail (1) for being circumferentially sleeved on the outer periphery of a short section (2) and arranged coaxially with the short section (2); a trolley (3) arranged on the periphery of the guide rail (1) and capable of circumferentially moving along the guide rail (1) under the drive of a driving mechanism; a connecting rod (4) constrained together with the trolley (3) and axially penetrating the inner periphery of the guide rail (1), so that the first end of the connecting rod (4) can extend into the short section (2) and face the tube sheet; a welding gun (5) arranged on the first end of the connecting rod (4), and the gun head of the welding gun (5) is used to correspond to the annular seam between the short section (2) and the tube sheet. Compared with the prior art, the utility model can improve welding efficiency and weld quality.
Description
Technical Field
The utility model belongs to the technical field of welding, and particularly relates to a device for girth welding between a tube plate and a short joint.
Background
The circular seam formed between the lateral tube plate and the inner hole of the short joint on the existing heat exchanger can only adopt an inner groove due to structural design, and the groove welding of the type faces the following problems:
1. At present, manual welding is adopted, and the welding space is small, the welding difficulty is high, the labor intensity of a welder is high, and the quality of a welding seam is difficult to control;
2. the weldment is full fixed port welding, and weld joint is many, and welding efficiency is low.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a device for girth welding between a tube plate and a short joint so as to improve welding efficiency and weld quality.
The technical scheme adopted by the utility model for solving the technical problems is that the device for girth welding between the tube plate and the short joint comprises:
The gun head of the welding gun is used for corresponding to the annular seam between the short section and the tube plate;
It is characterized in that the method also comprises the following steps:
The annular guide rail is used for being sleeved on the periphery of the short joint along the circumferential direction and is arranged coaxially with the short joint;
The trolley is arranged on the periphery of the guide rail and can move along the circumferential direction of the guide rail under the drive of the driving mechanism;
The connecting rod is restrained with the trolley and penetrates through the inner periphery of the guide rail along the axial direction, so that the first end of the connecting rod can extend into the short section and is opposite to the tube plate;
The welding gun is arranged at the first end part of the connecting rod.
So when need weld the circumferential weld between tube sheet and the nipple joint, can establish the guide rail cover in the periphery of nipple joint, stretch into the nipple joint with the first tip of connecting rod for the welder's on the first tip rifle head corresponds the circumferential weld and welds can, in the welding process, moves the rifle head that drives welder through the circumference of dolly and moves along circumferential weld circumference, accomplishes the welding to the welding seam, the operation of being convenient for, guarantees welding quality when can improving welding efficiency.
In order to enable the position of the welding gun head to be adjusted according to the position of the circumferential seam, the connecting rod is preferably connected with the first power mechanism and is restrained with the trolley in an axially movable mode.
Further, the connecting rod is connected to the second power mechanism while being restrained with the cart in such a manner as to be movable in the radial direction of the guide rail. Thereby being suitable for girth welding with different diameters.
Further, the welding gun further comprises a detection part for detecting the position of the gun head of the welding gun relative to the circular seam and a controller connected with the output end of the detection part, and the output end of the controller is connected to the first power mechanism and the second power mechanism. Therefore, the position of the gun head can be monitored and adjusted in real time, and the welding effect is further ensured.
In order to enable the trolley to move along the circumference of the guide rail under the drive of the driving mechanism, a circle of racks are arranged on the outer circumferential surface of the guide rail, gears are meshed on the racks, the driving mechanism is fixed relative to the trolley, and the output end of the driving mechanism is connected with the gears so as to drive the gears to rotate to drive the trolley to move.
Further, the welding gun also comprises a wire feeding mechanism which is arranged on the connecting rod and used for feeding welding wires to the gun head of the welding gun.
In each of the above embodiments, preferably, the welding is TIG welding.
Preferably, a plurality of springs extending in radial direction are arranged on the inner peripheral surface of the guide rail at intervals along the circumferential direction, and the inner end part of each spring is used for being supported on the outer peripheral surface of the short section. The design of the spring enables an annular gap to be formed between the inner peripheral surface of the guide rail and the outer peripheral surface of the nipple, and the guide rail is prevented from directly contacting the nipple. And the spring can stretch and retract according to the radial dimension of the short section, so that the guide rail is restrained on the periphery of the short section more stably.
Compared with the prior art, the welding device has the advantages that when the circumferential seam between the tube plate and the short joint is required to be welded, the guide rail can be sleeved on the periphery of the short joint, the first end part of the connecting rod stretches into the short joint, the gun head of the welding gun on the first end part corresponds to the circumferential seam to be welded, in the welding process, the gun head of the welding gun is driven to move along the circumferential direction of the circumferential seam by the circumferential movement of the trolley, the welding of the welding seam is completed, the operation is convenient, the welding efficiency can be improved, and the welding quality is ensured.
Drawings
FIG. 1 is a view of an embodiment of the present utility model in use (omitting a tube sheet);
Fig. 2 is a view of another view of the present utility model (omitting the tube sheet).
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 and 2, a preferred embodiment of an apparatus for circumferential seam welding between a tube plate and a short joint according to the present utility model is a TIG welding apparatus, and the apparatus for implementing welding includes a guide rail 1, a trolley 3, a connecting rod 4, a welding gun 5, and a wire feeding mechanism.
The guide rail 1 is in a ring shape, is sleeved on the periphery of the short section 2 along the circumferential direction and is arranged coaxially with the short section 2, a plurality of springs 6 extending in the radial direction are arranged on the inner circumferential surface of the guide rail 1 at intervals along the circumferential direction, and the inner end parts of the springs 6 are used for being supported on the outer circumferential surface of the short section 2 so that the inner circumferential surface of the guide rail 1 is opposite to the outer circumferential surface of the short section 2 at intervals.
The trolley 3 is arranged on the periphery of the guide rail 1 and can move along the circumferential direction of the guide rail 1 under the drive of the driving mechanism. Specifically, the outer peripheral surface of the guide rail 1 is provided with a circle of racks 11, the racks 11 are meshed with gears, the driving mechanism is an existing motor, the motor is fixed relative to the trolley 3, and the output end of the motor is connected with the gears so as to drive the gears to rotate and drive the trolley 3 to move. In this embodiment, the motor and the gear are both of the existing structure, which is not shown in the figure.
The connecting rod 4 is axially penetrated in the inner periphery of the guide rail 1, so that the first end part of the connecting rod 4 can extend into the short section 2 and is opposite to the tube plate, and the connecting rod 4 is simultaneously restrained with the trolley 3 in a mode of being axially movable and radially movable along the guide rail 1. In this embodiment, the connecting rod 4 is connected to the trolley 3 through the slider assembly 41, a first slider in the slider assembly 41 is restrained to the trolley 3 in a manner of being capable of moving axially along the guide rail 1, and a second slider in the slider assembly is restrained to the first slider in a manner of being capable of moving radially along the guide rail 1 and is connected to the connecting rod 4, so that the connecting rod 4 can move axially relative to the guide rail 1 and also can move radially relative to the guide rail 1. In order to drive the connecting rod 4 to move, a first power mechanism and a second power mechanism are additionally arranged, the first power mechanism is arranged on the trolley 3, the output end of the first power mechanism acts on the first sliding block to drive the first sliding block to move, the second power mechanism is arranged on the first sliding block, and the output end of the second power mechanism acts on the second sliding block to drive the second sliding block to move. In this embodiment, the first power mechanism and the second power mechanism may be existing telescopic members such as an electric cylinder and a hydraulic cylinder.
The welding gun 5 is arranged at the first end part of the connecting rod 4, and the gun head of the welding gun 5 is used for corresponding to the annular seam between the short joint 2 and the tube plate.
In order to improve welding quality, the embodiment further comprises a detection piece for detecting the position of the gun head of the welding gun 5 relative to the circumferential seam, and a controller connected with the output end of the detection piece, wherein the output end of the controller is connected to the first power mechanism and the second power mechanism. Therefore, the position of the gun head can be monitored and adjusted in real time, and the welding effect is further ensured.
The wire feeding mechanism is arranged on the connecting rod 4 and is used for conveying welding wires to the gun head of the welding gun 5. The wire feeding mechanism is in the prior art, and the specific structure thereof is not described herein.
When the circumferential seam between the tube plate and the short joint 2 is required to be welded, the guide rail 1 can be sleeved on the periphery of the short joint 2, the first end part of the connecting rod 4 stretches into the short joint 2, the gun head of the welding gun 5 on the first end part corresponds to the circumferential seam to be welded, in the welding process, the gun head of the welding gun 5 is driven to move along the circumferential seam in the circumferential direction through the circumferential movement of the trolley 3, the welding of the welding seam is completed, the operation is convenient, and the welding quality can be guaranteed while the welding efficiency can be improved.
Meanwhile, through being provided with guide rails with different inner diameters, welding between short sections with different diameters and the tube plates can be realized, and particularly, inner hole welding seams with welding diameters larger than or equal to 300mm can be realized.
Claims (8)
1. A device for girth welding between tube sheet and nipple joint, including:
The gun head of the welding gun (5) is used for corresponding to the circumferential seam between the short joint (2) and the tube plate;
It is characterized in that the method also comprises the following steps:
The annular guide rail (1) is used for being sleeved on the periphery of the short joint (2) along the circumferential direction and is arranged coaxially with the short joint (2);
The trolley (3) is arranged on the periphery of the guide rail (1) and can move along the circumferential direction of the guide rail (1) under the drive of the driving mechanism;
The connecting rod (4) is restrained with the trolley (3) and penetrates through the inner periphery of the guide rail (1) along the axial direction, so that the first end part of the connecting rod (4) can extend into the short joint (2) and is opposite to the tube plate;
the welding gun (5) is arranged at the first end part of the connecting rod (4).
2. The device according to claim 1, characterized in that the connecting rod (4) is connected to the first power mechanism and is constrained to the trolley (3) in an axially movable manner.
3. The device according to claim 2, characterized in that the connecting rod (4) is connected to the second power mechanism while being constrained to the trolley (3) in such a way as to be movable in the radial direction of the guide rail (1).
4. The device of claim 3, further comprising a detecting member for detecting the position of the tip of the welding gun (5) relative to the circumferential seam, and a controller connected to an output end of the detecting member, wherein the output end of the controller is connected to the first power mechanism and the second power mechanism.
5. The device according to claim 1, wherein a circle of racks (11) is arranged on the outer peripheral surface of the guide rail (1), gears are meshed on the racks (11), the driving mechanism is fixed relative to the trolley (3), and the output end of the driving mechanism is connected with the gears so as to drive the gears to rotate to drive the trolley (3) to move.
6. The device according to claim 1, further comprising a wire feeding mechanism provided on the connecting rod (4) for feeding welding wire to a tip of the welding gun (5).
7. The apparatus of claim 1 to 6, wherein the welding is TIG welding.
8. The device according to any one of claims 1 to 6, wherein a plurality of radially extending springs (6) are circumferentially arranged on the inner peripheral surface of the guide rail (1) at intervals, and the inner end of each spring (6) is used for being supported on the outer peripheral surface of the nipple (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421167885.XU CN222344449U (en) | 2024-05-23 | 2024-05-23 | Device for girth welding between tube plate and short joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421167885.XU CN222344449U (en) | 2024-05-23 | 2024-05-23 | Device for girth welding between tube plate and short joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222344449U true CN222344449U (en) | 2025-01-14 |
Family
ID=94208626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421167885.XU Active CN222344449U (en) | 2024-05-23 | 2024-05-23 | Device for girth welding between tube plate and short joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222344449U (en) |
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2024
- 2024-05-23 CN CN202421167885.XU patent/CN222344449U/en active Active
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