A high-pressure vessel welding device

Abstract

The present invention relates to the field of welding technology, and in particular to a high-pressure container welding device, comprising: a welding assembly, comprising a frame, a welding piece arranged at the top end of the frame, a collecting chamber being installed on the inner wall of the frame, a grid plate being installed at the top end of the collecting chamber, and a support plate for bearing the high-pressure container being installed at the top end of the grid plate; a clamping assembly, comprising a circular cylinder arranged inside both sides of the collecting chamber, a lower groove being provided at the top end of the circular cylinder, a sliding rod being installed inside the lower groove, a clamping piece being installed at the top end of the sliding rod, and clamping rotating pieces being installed at the top ends of the frame, so that the welding clamping device can flexibly adjust the clamping mode according to the shape of the welding object through the clamping piece and the clamping rotating piece, thereby reducing the problem of low welding efficiency.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and in particular to a welding device for high-pressure vessels. Background Art

[0002] High-pressure vessels are widely used in various industries such as chemical, petroleum, natural gas, pharmaceutical, and food processing due to their crucial role in industrial processes. These vessels often need to withstand extreme pressure and temperature conditions. Therefore, in their manufacturing process, especially the welding process, extremely high safety and reliability must be ensured. Traditional welding technologies include gas metal arc welding (GMAW), tungsten inert gas welding (TIG), and metal inert gas welding (MIG).

[0003] Currently, in the manufacturing process of high-pressure vessels, welding is a crucial step that directly affects the safety and service life of the vessels. Traditionally, welding equipment mostly has a fixed structure, and its clamping system is designed for components with specific shapes, such as flat plates or standard cylinders. However, when dealing with high-pressure vessels with non-standard shapes or large size variations, this fixed clamping system becomes inadequate. When facing high-pressure vessels in the shape of cylinders, horizontal cylinders, or other non-standard shapes, traditional welding equipment cannot be flexibly adjusted to adapt to the different welding surfaces of these vessels. For example, for welding inside a cylinder, an internal clamping device may be required; for welding the side wall of a horizontal cylinder-shaped vessel, a side wall clamping device may be needed; similarly, for welding the ends, an end clamping function is required. The equipment in the prior art often does not have this versatility and flexibility, resulting in low welding efficiency and difficulty in ensuring the consistency of welding quality. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problem that the above-mentioned welding equipment cannot flexibly adjust the clamping method according to the shape of the welded object, resulting in low welding efficiency, the present invention is proposed.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A welding device for high-pressure vessels, comprising a welding assembly, including a frame, a welding piece arranged at the top of the frame, a collection chamber installed on the inner wall of the frame, a grid plate installed at the top of the collection chamber, and a support plate installed at the top of the grid plate for bearing the high-pressure vessel.

[0007] The clamping assembly includes circular cylinders arranged inside both sides of the collection chamber. A lower groove is provided at the top of the circular cylinder. A sliding rod is installed inside the lower groove. A clamping member is installed at the top of the sliding rod. Clamping rotating members are installed at the top of both ends of the frame.

[0008] As a preferred embodiment of the high-pressure vessel welding device of the present invention, wherein: The welding member includes a first servo motor arranged at the top of the frame. A first robotic arm is installed at the top of the first servo motor. A second servo motor is installed on the side wall of the first robotic arm to drive the second robotic arm for adjustment.

[0009] As a preferred embodiment of the high-pressure vessel welding device of the present invention, wherein: The welding member further includes a third robotic arm arranged on the side wall of the second robotic arm. The third robotic arm is driven by a third servo motor. A welding head is installed at the end of the third robotic arm.

[0010] As a preferred embodiment of the high-pressure vessel welding device of the present invention, wherein: The clamping assembly further includes a telescopic spring arranged on the circumferential side wall of the sliding rod. A positioning plate is installed at the top of the sliding rod. A swing cylinder is installed at the bottom of the positioning plate.

[0011] As a preferred embodiment of the high-pressure vessel welding device of the present invention, wherein: The clamping member includes a first connecting rod arranged on the side wall of the sliding rod. One end of the first connecting rod away from the sliding rod is hinged to a second connecting rod. A third connecting rod is installed at the end of the second connecting rod away from the first connecting rod.

[0012] As a preferred embodiment of the high-pressure vessel welding device of the present invention, wherein: The clamping member further includes an adapter rod arranged at the end of the third connecting rod. The bottom end of the adapter rod is hinged to a mounting plate. The mounting plate is connected to the positioning plate by screws.

[0013] As a preferred embodiment of the high-pressure vessel welding device of the present invention, wherein: The clamping member further includes a hinge plate arranged inside the adapter rod. One end of the hinge plate away from the adapter rod is connected to a deflection rod. The side view of the hinge plate is arranged in a deflected T shape, while the top view of the deflection rod is arranged in a closed Y shape.

[0014] As a preferred embodiment of the high-pressure vessel welding device of the present invention, wherein: The clamping member further includes a snap plate arranged at the end of the deflection rod. The snap plate matches the deflection rod, and clamping blocks are installed at both the top and bottom ends of the snap plate. The clamping blocks are both made of rubber material.

[0015] As a preferred embodiment of the high-pressure vessel welding device of the present invention, the following is provided: The clamping and rotating member includes a driving motor disposed at the top of the frame, and a telescopic cylinder is installed at the output end of the driving motor, and the telescopic cylinder is fixed by a fixing plate.

[0016] As a preferred embodiment of the high-pressure vessel welding device of the present invention, the following is provided: The clamping and rotating member further includes a clamping plate disposed at the end of the piston rod of the telescopic cylinder. An extension plate is installed on the circumferential side wall of the clamping plate, and a limiting plate is installed on the side wall of the extension plate. The limiting plate is made of rubber with a certain flexibility.

[0017] Advantages of the present invention: Through the clamping member and the clamping and rotating member, the welding clamping device of the present invention can flexibly adjust the clamping method according to the shape of the welding object, reducing the problem of low welding efficiency. Moreover, through the linkage of the multi-stage link mechanism (the first link, the second link, and the third link) and the deflection rod, the clamping assembly can automatically adjust the clamping force and angle according to the size of the high-pressure vessel, ensuring the stability of the high-pressure vessel during the welding process and avoiding welding quality problems caused by vibration or movement. The clamping block is made of rubber material, which can not only provide sufficient friction to fix the high-pressure vessel, but also prevent scratches or deformation on the surface of the vessel during the clamping process, and is particularly suitable for welding precision or high-value high-pressure vessels. The clamping assembly can adapt to high-pressure vessels of different diameters and shapes. Through the coordinated action of the telescopic spring and the swing cylinder, the position of the clamping member is automatically adjusted, reducing the need for part replacement, improving the versatility and production efficiency of the equipment. The simple control logic of the swing cylinder and the natural reset mechanism of the telescopic spring make the operation of the clamping assembly intuitive and convenient. In addition, the modular design facilitates daily maintenance and part replacement, reducing the maintenance cost and downtime. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is an overall schematic diagram of a high-pressure vessel welding device.

[0020] Figure 2 It is a schematic structural diagram of a clamping member of a high-pressure vessel welding device.

[0021] Figure 3 It is a bottom view of the structure of a clamping member of a high-pressure vessel welding device.

[0022] Figure 4The front view of the clamping piece of a high-pressure vessel welding device.

[0023] Figure 5 The schematic diagram of the connecting structure of the connecting rod of a high-pressure vessel welding device.

[0024] Figure 6 It is Figure 1 The enlarged view of part A in

[0025] Reference numerals:

[0026] 100, welding assembly; 101, frame; 102, welding part; 103, collection chamber; 104, grid plate; 105, support plate;

[0027] 102a, first servo motor; 102b, first robotic arm; 102c, second servo motor; 102d, second robotic arm; 102e, third robotic arm; 102f, third servo motor; 102g, welding head;

[0028] 200, clamping assembly; 201, circular cylinder; 202, lower groove; 203, sliding rod; 204, clamping piece; 205, clamping rotating piece; 206, telescopic spring; 207, positioning plate; 208, swing cylinder;

[0029] 204a, first connecting rod; 204b, second connecting rod; 204c, third connecting rod; 204d, connecting rod; 204e, mounting plate; 204f, hinge plate; 204g, deflecting rod; 204h, snap plate; 204i, clamping block;

[0030] 205a, drive motor; 205b, telescopic cylinder; 205c, fixing plate; 205d, clamping plate; 205e, extension plate; 205f, limiting plate. Detailed implementation manners

[0031] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the drawings in the specification.

[0032] In the following description, many specific details are set forth to facilitate a thorough understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0033] Second, the "one embodiment" or "embodiment" referred to herein means a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive of other embodiments.

[0034] Thirdly, the present invention is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present invention, for the convenience of explanation, the cross-sectional views showing the device structure will be locally enlarged out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0035] Embodiment 1, referring to Figure 1 , which is the first embodiment of the present invention. This embodiment provides a high-pressure vessel welding device. Through the collaborative work of a multi-stage servo motor and a robotic arm, the high-pressure vessel welding device realizes an automated and high-precision welding process, improving the welding quality and production efficiency.

[0036] Specifically, the welding assembly 100 includes a frame 101, a welding piece 102 provided at the top of the frame 101. A collection chamber 103 is installed on the inner wall of the frame 101. A grid plate 104 is installed at the top of the collection chamber 103. A support plate 105 for bearing the high-pressure vessel is installed at the top of the grid plate 104.

[0037] Furthermore, the welding piece 102 includes a first servo motor 102a provided at the top of the frame 101. A first robotic arm 102b is installed at the top of the first servo motor 102a. A second servo motor 102c is installed on the side wall of the first robotic arm 102b to drive the second robotic arm 102d for adjustment.

[0038] Furthermore, the welding piece 102 further includes a third robotic arm 102e provided on the side wall of the second robotic arm 102d. The third robotic arm 102e is driven by a third servo motor 102f. A welding head 102g is installed at the end of the third robotic arm 102e.

[0039] Operation process: Ensure that all servo motors (the first servo motor 102a, the second servo motor 102c, and the third servo motor 102f) are powered on and preheated. Clean the residue in the collection chamber 103 to ensure that the waste during the welding process can smoothly fall into the collection chamber. Place the high-pressure vessel to be welded on the support plate 105 to ensure its stability and correct alignment. Start the first servo motor 102a and adjust the position of the first robotic arm 102b so that it faces the welding area of the high-pressure vessel. Start the second servo motor 102c and adjust the angle of the second robotic arm 102d to ensure that it can accurately align with the welding point. Use the third servo motor 102f to control the movement of the third robotic arm 102e so that the welding head 102g is accurately positioned on the weld of the high-pressure vessel. Start the welding head 102g to start the welding process. During the welding process, the first servo motor 102a and the second servo motor 102c can adjust the position of the robotic arm as needed to adapt to different welding angles and depths. The third servo motor 102f continuously controls the third robotic arm 102e to ensure that the welding head 102g moves stably and precisely along the weld. When the welding is completed, turn off the welding head 102g. Adjust the robotic arm back to the initial position through the servo motor to prepare for the next welding. Clean the waste in the collection chamber 103 and check whether there are any residues not cleaned. Check the welding quality to ensure that there are no defects in the weld, such as cracks and pores. Regularly lubricate and maintain the robotic arm and servo motor to ensure smooth operation. Check the status of the welding head 102g and replace worn parts if necessary.

[0040] Example 2, referring to Figures 1 - 5 , which is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is: the clamping assembly 200, the high-pressure vessel can be stably clamped during the welding process, and the rubber material of the clamping block 204i avoids damage to the surface of the high-pressure vessel, ensuring the welding quality and production efficiency.

[0041] Specifically, the clamping assembly 200 includes circular cylinders 201 arranged inside both sides of the collection chamber 103. The top of the circular cylinder 201 is provided with a lower groove 202. A sliding rod 203 is installed inside the lower groove 202. A clamping member 204 is installed at the top of the sliding rod 203. Clamping rotating members 205 are installed at the top of both ends of the frame 101.

[0042] Furthermore, the clamping assembly 200 further includes a telescopic spring 206 arranged on the circumferential side wall of the sliding rod 203. A positioning plate 207 is installed at the top of the sliding rod 203. A swing cylinder 208 is installed at the bottom of the positioning plate 207.

[0043] Further, the clamping member 204 includes a first connecting rod 204a provided on the side wall of the sliding rod 203. One end of the first connecting rod 204a away from the sliding rod 203 is hinged to a second connecting rod 204b, and a third connecting rod 204c is installed at one end of the second connecting rod 204b away from the first connecting rod 204a.

[0044] Further, the clamping member 204 further includes an adapter rod 204d provided at the end of the third connecting rod 204c. The bottom end of the adapter rod 204d is hinged to the mounting plate 204e, and the mounting plate 204e is connected to the positioning plate 207 by screws.

[0045] Further, the clamping member 204 further includes a hinge plate 204f provided on the inner wall of the adapter rod 204d. One end of the hinge plate 204f away from the adapter rod 204d is connected to the deflection rod 204g. The side view of the hinge plate 204f is arranged in a deflected T shape, while the top view of the deflection rod 204g is arranged in a closed Y shape.

[0046] Further, the clamping member 204 further includes a snap plate 204h provided at the end of the deflection rod 204g. The snap plate 204h is matched with the deflection rod 204g, and clamping blocks 204i are installed at both the top end and the bottom end of the snap plate 204h. The clamping blocks 204i are both made of rubber.

[0047] The remaining structures are the same as those in Embodiment 1.

[0048] Operation process: Ensure that all cylinders and springs are in their initial states, and the clamping member 204 is in the relaxed position. Confirm that the sliding rod 203 can slide freely within the lower groove 202. Check the elasticity of the telescopic spring 206 to ensure that it can provide a normal restoring force. Open the clamping assembly 200 to expand the clamping member 204 outward so that the high-pressure vessel can be easily placed on the support plate 105. Start the swing cylinder 208 to move the positioning plate 207 upward, and then drive the clamping member 204 to contract inward through the sliding rod 203. Under the guidance of the positioning plate 207, the first connecting rod 204a, the second connecting rod 204b, and the third connecting rod 204c are linked in sequence, and finally the connecting rod 204d and the hinge plate 204f move toward the high-pressure vessel. The clamping block 204i on the deflecting rod 204g tightly adheres to the outer wall or inner wall of the high-pressure vessel through the action of the snap plate 204h to complete the positioning. By adjusting the pressure of the swing cylinder 208, fine-tune the clamping force to ensure that the high-pressure vessel does not move during the welding process. Confirm that the clamping block 204i is in good contact with the surface of the high-pressure vessel, and the rubber clamping block can effectively prevent damage to the surface of the high-pressure vessel. In the state where the high-pressure vessel is stably clamped, start the welding assembly to perform the welding operation. During the welding process, the clamping assembly 200 should remain stable to avoid any unnecessary vibration or movement. After welding is completed, stop the welding assembly to ensure that the welding quality is correct. Slowly release the pressure of the swing cylinder 208 to gradually relax the clamping of the high-pressure vessel by the clamping assembly 200. After completely releasing the clamping force, carefully remove the high-pressure vessel from the support plate 105. Clean the residues on the clamping assembly 200, especially the clamping block 204i, to ensure cleanliness before the next use. Regularly check the telescopic spring 206 and the sliding rod 203 to ensure that their functions are intact.

[0049] Embodiment 3, referring to Figure 1 and Figure 6 , which is the third embodiment of the present invention. The difference between this embodiment and the above embodiments is that by clamping the rotating member 205, effective clamping and rotation control of the high-pressure vessel during the welding process are achieved, ensuring the high-quality completion of the welding operation.

[0050] Specifically, the clamping rotating member 205 includes a driving motor 205a provided at the top of the frame 101. The output end of the driving motor 205a is equipped with a telescopic cylinder 205b, and the telescopic cylinder 205b is fixed through a fixing plate 205c. As the power source, the driving motor 205a is responsible for providing the rotation torque for rotating the high-pressure vessel to ensure that the welding head 102g can weld evenly along the weld seam. Through the telescopic action, clamping and releasing of the high-pressure vessel are achieved. When the piston rod of the telescopic cylinder 205b extends, it pushes the clamping plate 205d closer to the high-pressure vessel to clamp the vessel; when the piston rod retracts, the vessel is released.

[0051] Further, the clamping and rotating member 205 further includes a clamping plate 205d disposed at the end of the piston rod of the telescopic cylinder 205b. An extension plate 205e is mounted on the circumferential side wall of the clamping plate 205d. A groove is provided at one end of the extension plate 205e close to the clamped object to enhance the clamping effect. A limiting plate 205f is mounted on the side wall of the extension plate 205e. Friction blocks are provided on the clamping surface of the limiting plate 205f to increase the clamping effect. The limiting plate 205f is made of rubber material with a certain flexibility and is a component in direct contact with the high-pressure vessel, used to clamp the vessel to ensure its stability during the welding process. The contact area of the clamping plate 205d is increased to improve the stability and reliability of clamping. It is made of rubber material with a certain flexibility, and its function is to provide additional friction when the high-pressure vessel is clamped to prevent the vessel from sliding axially or radially during the welding process. At the same time, the rubber material can avoid causing hard damage to the surface of the high-pressure vessel.

[0052] The remaining structures are the same as those in Embodiment 2.

[0053] Operation process: First, the device needs to be connected to an external power source. When the welding parts are the two ends of a long cylindrical shape or the welded parts on the side wall, the cylindrical high-pressure vessel needs to be placed at the support plate 105. Then, start the telescopic cylinder 205b to drive the clamping plate 205d to clamp the high-pressure vessel, and limit the high-pressure vessel through the limit plate 205f to reduce the situation of slipping. Then, start the driving motor 205a to drive the entire high-pressure vessel to rotate, and drive the welding head 102g through the robotic arm to weld the places on the high-pressure vessel that need to be welded. At the same time, before placing the high-pressure vessel on the support plate 105, the swing cylinder also needs to be started. During the downward movement of the swing cylinder 208, it will drive the first connecting rod 204a to move downward. The downward-moving first connecting rod 204a drives the second connecting rod 204b to move. The second connecting rod 204b drives the third connecting rod 204c to move downward and deflect. The deflected third connecting rod 204c drives the hinge plate 204f on the connecting rod 204d to move. The moving hinge plate 204f drives the clamping block 204i on the deflector rod 204g to deflect (this outward movement can limit the inner diameter of the cylindrical high-pressure vessel. For example, make the entire clamping part located inside the high-pressure vessel, and then the clamping block 204i of the deflector rod 204g abuts against the inner wall of the high-pressure vessel for limiting). After deflecting to the appropriate position, then start the swing cylinder 208 again. Drive the clamping parts 204 on the positioning plate 207 to rotate through the swing cylinder 208, so that the four clamping parts 204 are respectively located on both sides of the high-pressure vessel. At this time, the high-pressure vessel can be placed on the support plate 105. Then start the swing cylinder 208 again. Drive the connecting rod to move upward through the swing cylinder 208. Among them, the moving third connecting rod drives the hinge plate 204f to move. The moving hinge plate 204f drives the clamping block 204i on the deflector rod 204g to move towards the high-pressure vessel, so as to limit the side part of the high-pressure vessel through the clamping block 204i. Therefore, the device can select the fixing devices for end clamping, inner wall clamping and side wall clamping according to the welded high-pressure vessel, improving the welding efficiency.

[0054] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the positions of the elements may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be altered or re-ordered according to alternative embodiments. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments.

[0055] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention or those features that are not relevant to the implementation of the present invention).

[0056] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A high pressure vessel welding device, characterized in that: include, A welding assembly (100) comprises a frame (101) and a welding piece (102) arranged at the top of the frame (101); a collecting chamber (103) is installed on the inner wall of the frame (101); a grid plate (104) is installed at the top of the collecting chamber (103); and a support plate (105) for bearing the high-pressure container is installed at the top of the grid plate (104); The welding part (102) comprises a first servo motor (102a) arranged at the top end of the frame (101); a first mechanical arm (102b) is installed at the top end of the first servo motor (102a); and a second servo motor (102c) is installed on the side wall of the first mechanical arm (102b) to drive the second mechanical arm (102d) to make adjustments; The welding piece (102) further comprises a third mechanical arm (102e) arranged on a side wall of the second mechanical arm (102d), the third mechanical arm (102e) being driven by a third servo motor (102f), and a welding head (102g) being installed at an end of the third mechanical arm (102e); The clamping assembly (200) comprises a circular cylinder (201) arranged inside the two sides of the collecting chamber (103), the top of the circular cylinder (201) is provided with a lower groove (202), a sliding rod (203) is installed inside the lower groove (202), a clamping member (204) is installed at the top of the sliding rod (203), and clamping rotating members (205) are installed at the tops of both ends of the frame (101); The clamping assembly (200) further comprises a telescopic spring (206) arranged on the circumferential side wall of the sliding rod (203); a positioning plate (207) is installed at the top end of the sliding rod (203); and a swing cylinder (208) is installed at the bottom end of the positioning plate (207); The clamping member (204) comprises a first connecting rod (204a) arranged on the side wall of the sliding rod (203), the end of the first connecting rod (204a) away from the sliding rod (203) is hinged with a second connecting rod (204b), and the end of the second connecting rod (204b) away from the first connecting rod (204a) is installed with a third connecting rod (204c); The clamping member (204) further comprises a connecting rod (204d) arranged at the end of the third connecting rod (204c), the bottom end of the connecting rod (204d) is hinged to the mounting plate (204e), and the mounting plate (204e) is connected to the positioning plate (207) by screws.

2. The high pressure vessel welding device according to claim 1, characterized in that: The clamping member (204) further comprises a hinged plate (204f) arranged on the inner wall of the connecting rod (204d), wherein one end of the hinged plate (204f) away from the connecting rod (204d) is connected to the deflection rod (204g), and the side view of the hinged plate (204f) is a deflected T-shaped setting, while the top view of the deflection rod (204g) is a closed Y-shaped setting.

3. The high pressure vessel welding device according to claim 2, characterized in that: The clamping member (204) further comprises a snap plate (204h) arranged at the end of the deflection rod (204g), the snap plate (204h) matches the deflection rod (204g), and clamping blocks (204i) are installed at the top and bottom ends of the snap plate (204h), and the clamping blocks (204i) are made of rubber material.

4. The high pressure vessel welding device according to claim 3, characterized in that: The clamping rotating member (205) comprises a driving motor (205a) arranged at the top end of the frame (101), and a telescopic cylinder (205b) is installed at the output end of the driving motor (205a), and the telescopic cylinder (205b) is fixed by a fixing plate (205c).

5. The high pressure vessel welding device according to claim 4, characterized in that: The clamping rotating member (205) also includes a clamping plate (205d) arranged at the end of the piston rod of the telescopic cylinder (205b), the circumferential side wall of the clamping plate (205d) is installed with an extension plate (205e), the side wall of the extension plate (205e) is installed with a limit plate (205f), and the limit plate (205f) is made of rubber material with a certain degree of flexibility.

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