Pressure vessel girth welding device

Abstract

The utility model discloses a pressure vessel girth welding device, which relates to the technical field of welding devices and comprises a positioning component consisting of a seat body mechanism and a clamping mechanism. The positioning assembly can achieve synchronous loosening and clamping control of the clamping mechanisms in the two base body mechanisms under control of the loosening and clamping mechanisms, use is convenient and flexible, regulation and control are rapid and convenient, the welding assembly machining efficiency of the pressure container is improved, two barrels of the pressure container can be accurately spliced under the positioning effect of the clamping mechanisms, the machining quality is high, and the production efficiency is high. The problems that due to the fact that two sets of positioning clamps of an existing pressure container girth welding device are not synchronously controlled, the clamp loosening state cannot be synchronously controlled by two sets of semi-barrel clamps, alignment and fixation of welding parts are difficult to ensure, and meanwhile due to the fact that the two sets of clamps are not synchronously controlled, the clamps need to be frequently adjusted in the welding process, and the welding efficiency is reduced are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of welding equipment, and more specifically, it relates to a pressure vessel circumferential weld device. Background Technology

[0002] In the manufacturing process of pressure vessels, circumferential welding is a key process with extremely high requirements for welding quality and efficiency. As pressure-bearing equipment, the welding quality of pressure vessels is directly related to the safety and reliability of the equipment. Currently, when welding and assembling pressure vessels, two sets of clamps of the welding device are used to position and clamp different cylindrical parts. After the cylindrical parts are spliced ​​and positioned, the circumferential weld is then processed.

[0003] When the existing pressure vessel circumferential welder is in use, the two sets of positioning clamps are not controlled synchronously, which makes it difficult to ensure the alignment and fixation of the welded parts. This leads to deviations during the welding process and affects the welding quality. At the same time, due to the asynchronous control of the two sets of clamps, the clamps need to be adjusted frequently during the welding process, which increases the operation time and labor intensity, reduces welding efficiency, and has poor practicality. Utility Model Content

[0004] This disclosure relates to a pressure vessel circumferential weld device, which has a positioning component. Under the control of the clamping mechanism, the positioning component can realize the synchronous clamping and releasing control of the internal clamping mechanisms of the two sets of seat mechanisms. It is convenient and flexible to use, and quick and easy to adjust, which improves the welding and assembly efficiency of pressure vessels. At the same time, the distance between the two sets of seat mechanisms can be adjusted by the displacement mechanism, so as to adapt to the positioning, fixing and welding assembly operations of pressure vessels of different specifications. Under the positioning action of the clamping mechanism, the two cylinders of the pressure vessel can be accurately spliced, resulting in high processing quality and strong flexibility, adaptability, stability and practicality.

[0005] In a first aspect, this disclosure provides a pressure vessel circumferential weldment apparatus, comprising a base assembly and a positioning assembly. The base assembly consists of a mounting base, a displacement mechanism, and a clamping mechanism. The displacement mechanism includes a displacement screw and a displacement motor, and the clamping mechanism includes a main control rod and a clamping motor. The displacement screw is rotatably connected inside the mounting base, and the displacement motor is fixedly mounted on the side of the mounting base. The shaft of the displacement motor is drively connected to one end of the displacement screw. The main control rod is rotatably connected to the side of the mounting base, and the clamping motor is fixedly mounted on the side of the mounting base. The shaft of the clamping motor is drively connected to one end of the main control rod. The positioning assembly consists of a base mechanism and a clamping mechanism. The base mechanism has two sets, each including a clamping seat, a release screw, and a synchronizing gear. One set of clamping seats is fixedly mounted on the top of the mounting base, while the other set's clamping seat is inserted into the top of the mounting base. The release screw is rotatably connected inside the clamping seat, and the synchronizing gear is rotatably connected inside the clamping seat. The clamping mechanism includes a clamping arm and a centering wheel. The clamping arm is inserted into the clamping seat, and the release screw is threaded onto the clamping arm. The centering wheel is rotatably connected inside the clamping arm.

[0006] In at least some embodiments, the displacement screw is threaded to the bottom of the clamping seat inserted into the mounting base via the rod body thread. Each clamping seat has two sets of clamping mechanisms inside, and the two sets of clamping mechanisms inside the same clamping seat are symmetrical to each other.

[0007] In at least some embodiments, each of the clamping arms has two centering wheels inside, and the two centering wheels on the same clamping arm are on the same vertical line.

[0008] In at least some embodiments, the cross-section of the central rod of the master control rod is a regular polygon, and the synchronous gear has a drive groove inside, with the regular polygonal cross-section of the master control rod inserted into the drive groove.

[0009] In at least some embodiments, the release screw has a release gear on its side, and the release gear and the synchronizing gear engage in transmission.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The positioning component, under the control of the clamping mechanism, enables synchronous clamping and releasing control of the internal clamping mechanisms of the two sets of seat mechanisms. It is convenient and flexible to use, and quick and easy to adjust, improving the welding and assembly efficiency of pressure vessels. At the same time, the distance between the two sets of seat mechanisms can be adjusted by the displacement mechanism, thus adapting to the positioning, fixing, and welding assembly operations of pressure vessels of different specifications. Furthermore, under the positioning action of the clamping mechanism, the two cylinders of the pressure vessel can be accurately spliced, resulting in high processing quality and improving the flexibility, adaptability, stability, and practicality of the device. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0014] Figure 3 This is a utility model Figure 2 Enlarged structural diagram of part A in the middle.

[0015] Figure 4 This is a structural diagram of the disassembled base assembly of this utility model.

[0016] Figure 5 This is a structural diagram of the disassembled positioning component of this utility model.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0018] 1. Base assembly; 101. Mounting base; 102. Displacement screw; 103. Displacement motor; 104. Main control rod; 105. Clamp release motor;

[0019] 2. Base mechanism; 201. Clamping seat; 202. Clamping screw; 2021. Clamping gear; 203. Synchronizing gear; 2031. Drive slot;

[0020] 3. Clamping mechanism; 301. Clamping arm; 302. Centering wheel. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0022] As attached Figure 1 To be continued Figure 5 As shown:

[0023] Example 1: This utility model provides a pressure vessel circumferential weld device, including a base assembly 1 and a positioning assembly. The base assembly 1 consists of a mounting base 101, a displacement mechanism, and a clamping mechanism. The displacement mechanism includes a displacement screw 102 and a displacement motor 103, and the clamping mechanism includes a main control rod 104 and a clamping motor 105. The displacement screw 102 is rotatably connected inside the mounting base 101, and the displacement motor 103 is fixedly installed on the side of the mounting base 101. The rotating shaft of the displacement motor 103 is drivenly connected to one end of the displacement screw 102. The main control rod 104 is rotatably connected to the side of the mounting base 101, and the clamping motor 105 is fixedly installed on the side of the mounting base 101. The rotating shaft of the clamping motor 105 is drivenly connected to one end of the main control rod 104. Positioning The assembly consists of a base mechanism 2 and a clamping mechanism 3. The base mechanism 2 has two sets, each including a clamping seat 201, a release screw 202, and a synchronizing gear 203. The clamping seat 201 of one set of base mechanisms 2 is fixedly installed on the top of the mounting base 101, and the clamping seat 201 of the other set of base mechanisms 2 is inserted into the top of the mounting base 101. The release screw 202 is rotatably connected inside the clamping seat 201, and the synchronizing gear 203 is rotatably connected inside the clamping seat 201. The clamping mechanism 3 includes a clamping arm 301 and a centering wheel 302. The clamping arm 301 is inserted into the clamping seat 201, and the release screw 202 is screwed into the clamping arm 301 through a rod thread. The centering wheel 302 is rotatably connected inside the clamping arm 301.

[0024] In this embodiment, the displacement screw 102 is screwed onto the bottom of the clamping seat 201 inserted into the mounting base 101 via a screw thread. In use, the positioning component and the displacement mechanism work together to adjust the spacing between the two clamping seats 201, thus adapting to the rapid positioning and splicing operation of pressure vessel cylinders of different specifications and lengths. It is convenient and flexible to use. When the displacement motor 103 rotates, it can drive the displacement screw 102 to rotate. When the displacement screw 102 rotates, it can drive the clamping seat 201 that is threadedly engaged with it to move via the screw thread, thereby changing the spacing between the two clamping seats 201. It can be adjusted according to the actual needs of pressure vessel welding and processing, and has a strong adaptability.

[0025] In this embodiment, each clamping seat 201 is provided with two sets of clamping mechanisms 3, and the two sets of clamping mechanisms 3 inside the same clamping seat 201 are symmetrical to each other. In use, the positioning component and the loosening mechanism work together to achieve synchronous loosening control of the clamping mechanisms 3 inside the two clamping seats 201, thereby facilitating the rapid positioning and fixing between the two cylinders of the pressure vessel for subsequent circumferential welding operations. When the loosening motor 105 rotates, it can drive the main control rod 104 to rotate synchronously. The cross-section of the middle rod of the main control rod 104 is a regular polygon, and the synchronous gear 203 is provided with a drive groove 2031 inside. The rod part of the regular polygon cross-section of the main control rod 104 is inserted into the drive groove 2031. 04 When rotating, the rod with its regular polygonal cross-section can drive the two synchronous gears 203 of the two sets of seat mechanisms 2 to rotate synchronously through the drive groove 2031. The side of the rod of the release screw 202 is provided with a release gear 2021, and the gear teeth of the release gear 2021 and the synchronous gear 203 mesh and drive each other. Thus, when the synchronous gear 203 rotates, it can drive the release screw 202 to rotate through the release gear 2021. When the release screw 202 rotates, it can drive the two sets of clamping mechanisms 3 inside the clamping seat 201 to move synchronously and in opposite directions through the rod thread, thereby realizing the release operation of the pressure vessel cylinder. Moreover, the synchronous release control of the clamping mechanisms 3 inside the two clamping seats 201 is convenient to use, quick to install and dismantle, and improves work efficiency.

[0026] In this embodiment, each clamping arm 301 is provided with two centering wheels 302 inside, and the two centering wheels 302 on the same clamping arm 301 are on the same vertical line. In use, the centering wheels 302 can ensure that the two spliced ​​cylinders of the pressure vessel are on the same axis, thereby improving the quality of the circumferential weld of the pressure vessel. After the positioning component positions the cylinder of the pressure vessel, the cylinder will be between the centering wheels 302. Thus, under the abutment and support of the centering wheels 302, the two spliced ​​cylinders of the pressure vessel will be on the same axis, which facilitates the subsequent splicing positioning and circumferential weld operations, and is flexible and convenient to use.

[0027] The specific usage and function of this embodiment are as follows:

[0028] In this invention, the coordinated use of the positioning component and the clamping release mechanism enables synchronous clamping and release control of the clamping mechanisms 3 inside the two clamping seats 201, thereby facilitating rapid positioning and fixing between the two cylinders of the pressure vessel for subsequent circumferential welding operations. When the clamping release motor 105 rotates, it drives the main control rod 104 to rotate synchronously. When the main control rod 104 rotates, its polygonal cross-section rod can drive the two synchronous gears 203 of the two sets of seat mechanisms 2 to rotate synchronously through the drive groove 2031. Thus, when the synchronous gears 203 rotate, they can drive the clamping release screw 202 to rotate through the clamping release gear 2021. When the clamping release screw 202 rotates, it can drive the two sets of clamping mechanisms 3 inside the clamping seat 201 to move synchronously and in opposite directions through the thread of the rod, thereby realizing the clamping and release operation of the pressure vessel cylinder. Moreover, the synchronous clamping and release control of the clamping mechanisms 3 inside the two clamping seats 201 allows for quick installation and disassembly. The coordinated use of the positioning component and the displacement mechanism enables the adjustment of the two clamping seats 201. 1. The spacing function allows for rapid positioning and splicing of pressure vessel cylinders of different specifications and lengths, offering convenience and flexibility. When the displacement motor 103 rotates, it drives the displacement screw 102 to rotate. The displacement screw 102, through its threaded rod, moves the clamping seat 201 that is threaded with it, thus changing the spacing between the two clamping seats 201. This spacing can be adjusted according to the actual needs of pressure vessel welding. The centering wheel 302 ensures that the two spliced ​​cylinders of the pressure vessel are on the same axis, improving the quality of the circumferential weld. After the positioning assembly positions the cylinder of the pressure vessel, the cylinder will be positioned between the centering wheels 302. Through the resistance and support of the centering wheels 302, the two spliced ​​cylinders of the pressure vessel will be on the same axis, facilitating subsequent splicing positioning and circumferential weld operations. After the two cylinders of the pressure vessel are spliced ​​and positioned, circumferential weld operations can be performed on the spliced ​​parts.

[0029] The following points should be noted in this article:

[0030] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0031] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0032] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A pressure vessel girth welding apparatus, characterised in that: Include: Base assembly (1) and positioning assembly, the base assembly (1) is composed of mounting seat (101), displacement mechanism and loose clamp mechanism, the displacement mechanism includes displacement screw (102) and displacement motor (103), and loose clamp mechanism includes master control lever (104) and loose clamp motor (105), the displacement screw (102) is rotatably connected in the inside of mounting seat (101), and displacement motor (103) is fixedly installed on the side of mounting seat (101), the rotating shaft of displacement motor (103) and the one end of displacement screw (102) are drivingly connected, the master control lever (104) is rotatably connected on the side of mounting seat (101), and loose clamp motor (105) is fixedly installed on the side of mounting seat (101), the rotating shaft of loose clamp motor (105) and the one end of master control lever (104) are drivingly connected; The positioning assembly includes seat body mechanism (2), and seat body mechanism (2) is provided with two groups, the seat body mechanism (2) includes clamping seat (201), loose clamp screw (202) and synchronous gear (203), one group of clamping seat (201) of the seat body mechanism (2) is fixedly installed on the top of mounting seat (101), and the clamping seat (201) of another seat body mechanism (2) is inserted on the top of mounting seat (101), the loose clamp screw (202) is rotatably connected in the inside of clamping seat (201), and the synchronous gear (203) is rotatably connected in the inside of clamping seat (201).

2. A device for welding girth seams of pressure vessels as claimed in claim 1, characterized in that: The positioning assembly further includes clamping mechanism (3), clamping mechanism (3) includes clamping arm (301) and centering wheel (302), clamping arm (301) is inserted in the inside of clamping seat (201), and loose clamp screw (202) is screwed in the inside of clamping arm (301) through the rod body, and centering wheel (302) is rotatably connected in the inside of clamping arm (301).

3. A device for welding girth seams of pressure vessels as claimed in claim 2, characterized in that: The displacement screw (102) is screwed in the bottom of the clamping seat (201) inserted on the mounting seat (101) through the rod body, the inside of each clamping seat (201) is provided with two groups of clamping mechanism (3), and the two groups of clamping mechanism (3) in the same clamping seat (201) are mutually symmetrical.

4. A device for welding girth seams of pressure vessels as claimed in claim 3, characterized in that: The inside of each clamping arm (301) is provided with two centering wheels (302), and the two centering wheels (302) on the same clamping arm (301) are on the same vertical line.

5. A device for welding girth seams of pressure vessels as claimed in claim 4, characterized in that: The middle rod body section of master control lever (104) is a regular polygon, and the inside of synchronous gear (203) is provided with driving groove (2031), and the rod body part of the regular polygon section of master control lever (104) is inserted in the inside of driving groove (2031).

6. A device for welding girth seams of pressure vessels as claimed in claim 5, characterized in that: The rod body side of loose clamp screw (202) is provided with loose clamp gear (2021), and the gear teeth of loose clamp gear (2021) and synchronous gear (203) are engaged transmission.

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