A welding device for a neck flange plate

Abstract

The utility model discloses a kind of take neck flange plate welding devices, it is related to take neck flange plate welding field, including support stable frame, the upper surface of support stable frame is equipped with stable support disc, the inside of stable support disc is equipped with the extension clamping mechanism for supporting the neck flange workpiece, the extension clamping mechanism includes fixedly embedded spring, and fixedly embedded spring nesting is installed in the inside of stable support disc.The take neck flange plate welding device, when needing to carry out internal stable operation to neck flange workpiece, two groups of contact contraction semicircular rods are rotated inwards, so that back extension rod drives arc occlusion plate inwards, at this moment neck flange workpiece can be placed to arc occlusion plate inside, after no longer force, fixedly embedded spring will carry out stable clamping to the inside of neck flange workpiece, the design makes the applicability of different sizes neck flange improve, can carry out efficient and fast clamping stable operation, improve the use intelligent property of equipment.

Description

Technical Field

[0001] This utility model relates to the field of welding technology for necked flanges, specifically to a welding device for necked flanges. Background Technology

[0002] Welding of necked flanges, such as weld neck flanges and butt weld flanges, is a core step in ensuring the sealing performance and structural strength of the pipeline system. The process needs to be comprehensively designed in combination with the flange type, material and application scenario. This process includes four dimensions: selection of welding method, pre-welding preparation, process steps and quality inspection.

[0003] Most automated flange welding equipment on the market today relies on the welder's wrist to swing the welding nozzle in an arc shape, using the surface tension of the molten droplets to fill the bevel. This welding method is basically dependent on experienced welders, which makes it impossible to improve welding efficiency and prevents it from being widely used.

[0004] To overcome the above-mentioned defects, the prior art (Chinese Patent No. CN119457437B, Publication Date: 2025-03-28) discloses a flange welding device, including a robotic arm. A laser welding head is fixedly installed at the top of the robotic arm, and a crank mechanism is fixedly installed on the outer side of the laser welding head. A turntable is fixedly connected to the bottom side of the robotic arm, and an adjustment mechanism is fixedly installed on the outer side of the nozzle of the laser welding head. The crank mechanism includes a motion platform, a telescopic component, a control mechanism, and a support mechanism. The motion platform is fixedly connected to the lower outer side of the laser welding head, and a circular block is fixedly connected to the upper outer side of the laser welding head. A support mechanism is fixedly connected to the outer side of the circular block, and a fixed platform is fixedly connected to the other end of the support mechanism. Through the coordinated action of the turntable, telescopic component, control mechanism, and support mechanism, this flange welding device enables the laser welding head to form an adjustable crank-type welding trajectory for the flange, allowing for a crank-type welding trajectory with an adjustable weld size.

[0005] While the above design can solve the aforementioned problems, its applicability is insufficient when it is necessary to perform stable clamping operations on necked flanges of different sizes. It cannot perform efficient and quick clamping and stabilizing operations, resulting in poor equipment intelligence. At the same time, when performing welding operations on flanges of corresponding sizes, the welding joint design of the existing design is not very sensitive, which increases the equipment's usage time, reduces its efficiency, and results in insufficient welding effect. Utility Model Content

[0006] The purpose of this utility model is to provide a welding device for necked flanges, in order to solve the problems mentioned in the background art, such as the insufficient applicability of existing designs when it is necessary to perform stable clamping operations on necked flanges of different sizes, the inability to perform efficient and fast clamping and stable operations, the poor intelligence of the equipment, and the insensitive welding joint design when performing welding operations on flanges of corresponding sizes, which increases the equipment's usage time, reduces its efficiency, and results in insufficient welding effect.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a welding device for a flange with a neck, comprising a support and stabilizing frame, a stabilizing support plate mounted on the upper surface of the support and stabilizing frame, an extended clamping mechanism for supporting the flange with a neck processed part mounted inside the stabilizing support plate, the extended clamping mechanism comprising a fixed fitting spring, the fixed fitting spring being nested inside the stabilizing support plate, a raising support frame mounted on the upper surface of the support and stabilizing frame, and a transmission adjustment mechanism for moving the welding head up and down mounted inside the raising support frame.

[0008] Furthermore, the transmission adjustment mechanism includes a machining rotating rod, which is slidably installed inside the lifting support frame. The welding machining head is rotatably installed inside the front end of the lifting support frame, and a drive rotary motor is installed inside the lifting support frame.

[0009] Furthermore, a connecting and fixing disc is installed on the outer surface of the output end of the drive rotary motor, and an abutting rod is installed on the outer surface of the connecting and fixing disc. An integrated auxiliary rod is installed at the end of the processing rotating rod, and a vertical limiting groove is opened on the outer surface of the lifting support frame.

[0010] Furthermore, the outer surface of the stabilizing support plate is provided with a fitting and extending inner groove, and a fixed fitting spring is fixedly installed inside the fitting and extending inner groove. A back extension rod is installed inside the fitting and extending inner groove, and an arc-shaped biting plate is installed at the front end of the back extension rod.

[0011] Furthermore, the front end of the fixed fitting spring abuts against the outer end of the back extension rod, and the arc-shaped interlocking plate, the back extension rod, and the fixed fitting spring are equally distributed in four sets about the center point of the stabilizing support plate. The end of the back extension rod is nested inside the inner groove of the fitting extension, and the inner surface of the neck flange processing part is nested with the outer surface of the arc-shaped interlocking plate.

[0012] Furthermore, the upper surface of the support and stabilizing frame is equipped with an abutting retractable semi-circular rod, and the rotation trajectory of the inner surface of the abutting retractable semi-circular rod abuts against the outer surface of the back extension rod, and the outer surface of the back extension rod contacts the front end of the fixed fitting spring to form an elastic structure.

[0013] Furthermore, the integrated auxiliary rod slides along the interior of the vertical limiting groove, and a hollow transmission rod is installed on the outer surface of the integrated auxiliary rod. The abutting rod is nested inside the hollow transmission rod, and the lower end of the welding head corresponds to the installation position of the neck flange part.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When the neck flange welding device needs to perform internal stabilization operation on the neck flange processing part, the two sets of abutting and retracting semi-circular rods are directly rotated inward, so that the back extension rod drives the arc-shaped interlocking plate inward. At this time, the neck flange processing part can be placed inside the arc-shaped interlocking plate. When there is no longer any force, the fixed locking spring will stably clamp the inside of the neck flange processing part. This design improves the applicability of neck flanges of different sizes, enables efficient and quick clamping and stabilization operation, and improves the intelligence of the equipment. Furthermore, when it is necessary to adjust the processing position of the welding head, the drive rotary motor is directly started to raise the connecting fixed disc and the contact docking rod, which drives the hollow transmission rod. At this time, the processing rotating rod and the welding head can move up and down synchronously. This design makes the welding processing of the equipment more sensitive, improves the efficiency of the equipment and makes the welding effect better. Furthermore, the movement trajectory of the integrated auxiliary rod will slide along the inside of the vertical limiting groove, making the movement of the welding head very stable. At the same time, the welding head is rotatably installed inside the processing rotating rod, making the welding processing of the equipment more precise. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the support and stabilization frame of this utility model; Figure 2 This is a three-dimensional structural diagram of the welding head of this utility model; Figure 3 This is a three-dimensional structural diagram of the neck flange processing part of this utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the fitting and extending inner groove of this utility model; Figure 5 This is a schematic diagram of the three-dimensional structure of the vertical limiting inner groove of this utility model; Figure 6 This is a three-dimensional structural diagram of the hollow transmission rod of this utility model.

[0016] In the diagram: 1. Support and stabilizing frame; 2. Elevating support frame; 3. Machining rotating rod; 4. Welding head; 5. Stabilizing support plate; 6. Arc-shaped interlocking plate; 7. Neck flange machining part; 8. Back extension rod; 9. Drive rotary motor; 10. Connecting and fixing disc; 11. Vertical limiting inner groove; 12. Fitting extension inner groove; 13. Fixing and fitting spring; 14. Abutting docking rod; 15. Abutting retractable semi-circular rod; 16. Integrated auxiliary rod; 17. Hollow transmission rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: Please refer to Figure 1 , Figure 3 and Figure 4 This utility model provides the following technical solution: a welding device for a flange with a neck, including a support and stabilizing frame 1, a stabilizing support plate 5 installed on the upper surface of the support and stabilizing frame 1, and an extended clamping mechanism for supporting the flange with a neck 7 installed inside the stabilizing support plate 5. The extended clamping mechanism includes a fixed engagement spring 13, such as... Figure 3 As shown, the fixed fitting spring 13 is nested inside the stable support plate 5, and the upper surface of the support and stabilizing frame 1 is equipped with a lifting support frame 2, and the interior of the lifting support frame 2 is equipped with a transmission adjustment mechanism for moving the welding processing head 4 up and down.

[0019] like Figure 1 , Figure 3 and Figure 4 The technical solution shown addresses the shortcomings of existing designs in providing efficient and quick clamping and stabilizing for necked flanges of different sizes, resulting in poor equipment intelligence. Specifically, it discloses a design where: a fitting and extending inner groove 12 is formed on the outer surface of the stabilizing support plate 5; a fixing and engaging spring 13 is fixedly installed inside the fitting and extending inner groove 12; a back extension rod 8 is installed inside the fitting and extending inner groove 12; and an arc-shaped interlocking plate 6 is installed at the front end of the back extension rod 8. The front end of the fixing and engaging spring 13 abuts against the outer end of the back extension rod 8. Figure 4As shown, the arc-shaped interlocking plate 6, the back extension rod 8, and the fixed fitting spring 13 are installed in four sets at the center point of the stabilizing support plate 5. The end of the back extension rod 8 is nested inside the inner groove 12 of the fitting extension. The inner surface of the neck flange processing part 7 is nested with the outer surface of the arc-shaped interlocking plate 6. The upper surface of the support stabilizing frame 1 is equipped with an anti-contraction semi-circular rod 15. The rotation trajectory of the inner surface of the anti-contraction semi-circular rod 15 is in contact with the outer surface of the back extension rod 8. The outer surface of the back extension rod 8 contacts the front end of the fixed fitting spring 13 to form an elastic structure.

[0020] When internal stabilization support is required for the neck flange machining part 7, firstly, rotate the abutment retractable semi-circular rod 15 upwards along the upper surface of the support stabilizer 1. At this time, as the left and right sets of abutment retractable semi-circular rods 15 clamp accordingly, the inner surface of the abutment retractable semi-circular rod 15 will abut against the outer surface of the back extension rod 8 and move it. The back extension rod 8 will then retract and be limited along the interior of the stabilizing support plate 5, and the end of the back extension rod 8 will slide and be limited within the fitting extension groove 12 opened inside the stabilizing support plate 5. Figure 4 As shown, during the movement of the back extension rod 8, the arc-shaped interlocking plate 6 fixedly installed on the outer surface of the front end will synchronously retract inward. During the retraction of the back extension rod 8, the fixed interlocking spring 13 fixedly installed inside the extension groove 12 will be radially extended until the four sets of arc-shaped interlocking plates 6 and the back extension rod 8 retract to the corresponding diameter. At this time, the neck flange processing part 7 is nested on the outside of the arc-shaped interlocking plate 6 and the abutting retraction semi-circular rod 15 is directly released. At this time, the retraction of the fixed interlocking spring 13 will drive the arc-shaped interlocking plate 6 in the opposite direction and simultaneously adhere to the inner surface of the neck flange processing part 7. This design makes the use of the equipment more intelligent.

[0021] Example 2: Figure 2 , Figure 5 and Figure 6 The technical solution shown addresses the problem that existing designs for welding flanges of corresponding dimensions are insensitive, leading to increased equipment usage time, reduced efficiency, and insufficient welding results. The solution discloses a transmission adjustment mechanism including a machining rotating rod 3, which is slidably mounted inside a lifting support frame 2. A welding machining head 4 is rotatably mounted inside the front end of the lifting support frame 2. A drive rotary motor 9 is installed inside the lifting support frame 2. A connecting and fixing disc 10 is mounted on the outer surface of the output end of the drive rotary motor 9, and an abutting rod 14 is mounted on the outer surface of the connecting and fixing disc 10. Figure 5As shown, an integrated auxiliary rod 16 is installed at the end of the machining rotating rod 3, and a vertical limiting inner groove 11 is opened on the outer surface of the lifting support frame 2. The integrated auxiliary rod 16 slides along the inside of the vertical limiting inner groove 11 for limiting and fitting. A hollow transmission rod 17 is installed on the outer surface of the integrated auxiliary rod 16, and the abutting rod 14 is nested inside the hollow transmission rod 17. The lower end of the welding machining head 4 corresponds to the installation position of the neck flange machining part 7.

[0022] When welding is required on the weld joints of necked flange parts 7 of different sizes, the processing position of the welding head 4 needs to be adjusted according to the installation position of the necked flange part 7. At this time, the drive rotary motor 9, which is fixedly installed inside the lifting support frame 2, is directly driven to work. As the working output end of the drive rotary motor 9 is driven, the connecting and fixing disc 10, which is fixedly installed on the outer surface, will be driven to rotate. During the rotation of the connecting and fixing disc 10, the abutting rod 14, which is also fixedly installed on the outer surface, will rotate synchronously. Since the abutting rod 14 is nested inside the hollow transmission rod 17, as... Figure 6 As shown, the hollow transmission rod 17 will move up and down against the docking rod 14 as the connecting and fixing disc 10 rotates. At the same time, since the hollow transmission rod 17 is fixedly installed on the back of the integrated auxiliary rod 16, the integrated auxiliary rod 16 will slide vertically up and down along the vertical limiting groove 11 opened on the outer surface of the lifting support frame 2. During the movement of the integrated auxiliary rod 16, the processing rotating rod 3 fixedly installed on the inner surface will be driven synchronously again. Since the welding processing head 4 is rotatably installed inside the front end of the processing rotating rod 3, the up and down movement of the hollow transmission rod 17 will drive the welding processing head 4 synchronously through the integrated auxiliary rod 16. This design makes the use of the equipment more intelligent and efficient.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for a flange with a neck, comprising a support and stabilizing frame (1), wherein a stabilizing support plate (5) is mounted on the upper surface of the support and stabilizing frame (1), characterized in that: The stable support plate (5) is internally equipped with an extended clamping mechanism that supports the necked flange machining part (7); The extended clamping mechanism includes a fixed fitting spring (13), which is nested inside the stable support plate (5). The upper surface of the support and stabilizing frame (1) is equipped with a lifting support frame (2), and the interior of the lifting support frame (2) is equipped with a transmission adjustment mechanism for moving the welding head (4) up and down.

2. The welding device for a flanged neck according to claim 1, characterized in that: The transmission adjustment mechanism includes a processing rotating rod (3), which is slidably installed inside the lifting support frame (2). The welding processing head (4) is rotatably installed inside the front end of the lifting support frame (2), and a drive rotary motor (9) is installed inside the lifting support frame (2).

3. The welding device for a flanged neck according to claim 2, characterized in that: The output end of the drive rotary motor (9) is equipped with a connecting and fixing disc (10), and the outer surface of the connecting and fixing disc (10) is equipped with an abutting rod (14). The end of the processing rotating rod (3) is equipped with an integrated auxiliary rod (16), and the outer surface of the lifting support frame (2) is provided with a vertical limiting inner groove (11).

4. The welding device for a flanged neck according to claim 1, characterized in that: The outer surface of the stabilizing support plate (5) is provided with a fitting extension inner groove (12), and a fixed fitting spring (13) is fixedly installed inside the fitting extension inner groove (12). A back extension rod (8) is installed inside the fitting extension inner groove (12), and an arc-shaped biting plate (6) is installed at the front end of the back extension rod (8).

5. The welding device for a flanged neck according to claim 4, characterized in that: The front end of the fixed fitting spring (13) and the outer end of the back extension rod (8) abut against each other. The arc-shaped biting plate (6), the back extension rod (8) and the fixed fitting spring (13) are equally divided into four groups about the center point of the stabilizing support plate (5). The end of the back extension rod (8) is nested inside the inner groove (12) of the fitting extension. The inner surface of the neck flange processing part (7) and the outer surface of the arc-shaped biting plate (6) are nested together.

6. The welding device for a necked flange according to claim 5, characterized in that: The upper surface of the support and stabilizing frame (1) is equipped with an abutting retractable semi-circular rod (15), and the rotation trajectory of the inner surface of the abutting retractable semi-circular rod (15) abuts against the outer surface of the back extension rod (8), and the outer surface of the back extension rod (8) contacts the front end of the fixed fitting spring (13) to form an elastic structure.

7. The welding device for a flanged neck according to claim 3, characterized in that: The integrated auxiliary rod (16) slides along the inside of the vertical limiting inner groove (11) and a hollow transmission rod (17) is installed on the outer surface of the integrated auxiliary rod (16). The abutting rod (14) is nested inside the hollow transmission rod (17) and the lower end of the welding head (4) corresponds to the installation position of the neck flange processing part (7).

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