Auxiliary device for girth welding of pressure vessel

Abstract

The utility model provides an auxiliary device for girth welding of a pressure container, and belongs to the technical field of welding. In order to solve the problems that an existing welding auxiliary device is tedious in operation and low in welding efficiency, the following technical scheme is provided that the welding auxiliary device comprises a container frame, a mounting hole is formed in one side of the container frame, a bearing is clamped in the mounting hole, a welding shaft is arranged in the bearing in a penetrating mode, a welding support is arranged on the welding shaft in a sleeving mode, and a fixing plate is fixedly connected to one side of the welding support; a welding assembly is arranged on one side of the fixing plate and comprises a screw motor, a spindle of the screw motor is sleeved with an adjusting ring, the bottom of the adjusting ring is fixedly connected with a telescopic rod, a replacement hole is formed in the bottom of the telescopic rod, the shaft end of the screw motor is sleeved with a limiting sleeve, and an adjusting assembly is arranged on one side of the container frame. And through the arrangement of the adjusting assembly and the welding assembly, the convenience of the device is improved, and the working efficiency of welding operation is improved during welding operation.

Description

Technical Field

[0001] This utility model belongs to the field of welding auxiliary technology, and more specifically, it relates to an auxiliary device for welding circumferential seams of pressure vessels. Background Technology

[0002] Pressure vessels, as an important type of industrial equipment, are widely used in chemical, petroleum, energy and other fields. Their structure consists of steel cylinders and flanges of various specifications and sizes. These components are connected and formed by welding. In the manufacturing process of pressure vessels, circumferential welding is a key process that directly determines the quality and safety of the final product.

[0003] For example, Chinese utility model patent with patent number 201621396087.X provides an auxiliary device for welding circumferential seams of cylinders. This device, through the arrangement of hollow cylinders, positioning drive components, positioning components, gear rings and other parts, allows the positioning drive components and positioning components to move two hollow cylinders to the positioning position during use. The rotation drive components start the gear ring to rotate, quickly welding and fixing the two cylinders together, and then connecting the cylinders, which facilitates the welding work of the circumferential seams of the cylinders by the workers.

[0004] The existing auxiliary devices for circumferential welding of pressure vessels are cumbersome to operate, often requiring staff to perform complex adjustments and positioning operations repeatedly. When it is necessary to replace or maintain the welding device, there are many installation and disassembly steps, which is not convenient. Moreover, most of the existing welding auxiliary devices still use manual two-person welding, resulting in low welding efficiency. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides an auxiliary device for circumferential welding of pressure vessels. This device solves the problems of existing auxiliary devices for circumferential welding of pressure vessels being cumbersome to operate, often requiring workers to perform complex adjustments and positioning operations repeatedly, and involving numerous installation and disassembly steps when the welding device needs to be replaced or maintained, resulting in poor convenience. Furthermore, most existing welding auxiliary devices still rely on manual double-person welding, leading to low welding efficiency.

[0006] The purpose and effect of this utility model's auxiliary device for circumferential welding of pressure vessels are achieved by the following specific technical means:

[0007] An auxiliary device for circumferential welding of pressure vessels includes a vessel frame. A mounting hole is provided on one side of the vessel frame, and a bearing is fitted into the mounting hole. A welding shaft passes through the bearing, and a welding bracket is fitted onto the welding shaft. A fixing plate is fixedly connected to one side of the welding bracket, and a welding assembly is provided on one side of the fixing plate. The welding assembly includes a screw motor, and the screw motor is located on one side of the fixing plate. An adjusting ring is fitted onto the main shaft of the screw motor, and a telescopic rod is fixedly connected to the bottom of the adjusting ring. A replacement hole is provided at the bottom of the telescopic rod, and a limiting sleeve is fitted onto the shaft end of the screw motor. An adjusting assembly is located on one side of the vessel frame.

[0008] According to a preferred embodiment, the adjustment assembly includes an adjustment frame disposed on one side of the container frame. The top of the adjustment frame has a sliding groove, a sliding block is engaged in the sliding groove, a circular fixing frame is disposed on the top of the sliding block, and adjustment components are fixedly connected to both sides of the circular fixing frame.

[0009] According to a preferred embodiment, the adjusting member has an adjusting hole on one side, a threaded rod is inserted through the adjusting hole, a blocking member is provided on one side of the threaded rod, and an adjusting handle is provided on the other side of the threaded rod.

[0010] According to a preferred embodiment, a limiting plate is sleeved on the threaded rod, and two sets of limiting rings are respectively provided on both sides of the limiting plate.

[0011] According to a preferred embodiment, a hinge is provided on one side of the circular fixing frame, a card seat is provided on the other side of the circular fixing frame, a buckle is provided in the card seat, a second container is provided inside the circular fixing frame, and a detachable baffle is provided on one side of the second container.

[0012] According to a preferred embodiment, the welding assembly further includes a rotary motor, a transmission shaft is clamped at one end of the welding shaft, the rotary motor passes through one end of the transmission shaft, and two sets of fixing rings are respectively provided on both sides of the welding bracket.

[0013] According to a preferred embodiment, a cushioning pad made of rubber is provided inside the container rack, and a first container is provided inside the container rack.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By adjusting the component settings, the second container can be more easily and conveniently connected to the first container during docking operations, without the need for complex adjustment and positioning operations. The threaded motor and adjusting ring make it easier to adjust the welding device to the welding point. The replacement hole allows the operator to simply unscrew the welding device from the replacement hole for replacement or maintenance operations, making the operation of the device simpler and clearer, and improving its convenience.

[0016] 2. By setting up the welding components, this device only requires a single operator to first adjust the components and threaded motor to align and position the first and second containers, and then turn on the rotary motor to drive the welding support to rotate via the welding shaft, thus automatically welding the pressure vessel. This solves the problem that most existing welding auxiliary devices still rely on manual two-person welding, resulting in low welding efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an auxiliary device for circumferential welding of pressure vessels according to the present invention;

[0018] Figure 2 This is an exploded view of an auxiliary device for circumferential welding of a pressure vessel according to the present invention.

[0019] Figure 3 This is a schematic diagram of the disassembled structure of an auxiliary device for circumferential welding of pressure vessels according to the present invention.

[0020] Figure 4 This is a schematic diagram of the telescopic rod in an auxiliary device for circumferential welding of a pressure vessel according to the present invention.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 11. Container rack; 12. Mounting hole; 13. Welding shaft; 14. Bearing; 15. Fixing plate; 16. Screw motor; 17. Limit sleeve; 18. Telescopic rod; 19. Adjusting ring; 21. Replacement hole; 22. Adjusting frame; 23. Sliding block; 24. Circular fixing frame; 25. Adjusting component; 26. Adjusting hole; 27. Blocking component; 28. Adjusting handle; 29. ​​Threaded rod; 31. Limiting plate; 32. Limiting ring; 33. Card seat; 34. Buckle; 35. Second container; 36. Baffle; 37. Drive shaft; 38. Welding bracket; 39. Rotary motor; 41. Buffer pad; 42. First container; 43. Fixing ring; 44. Hinge. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] Example:

[0025] As attached Figure 1 To be continued Figure 4 As shown:

[0026] This utility model provides an auxiliary device for circumferential welding of pressure vessels. A mounting hole 12 is provided on one side of the vessel frame 11. A bearing 14 is fitted inside the mounting hole 12, and a welding shaft 13 passes through the bearing 14. A welding bracket 38 is fitted on the welding shaft 13. The bearing 14 ensures the normal rotation of the welding shaft 13, which in turn causes the welding bracket 38 to rotate in a circular motion around the device. A fixing plate 15 is fixedly connected to one side of the welding bracket 38, and a welding assembly, including a screw motor 16 and an adjusting ring 19, is fixedly connected to one side of the fixing plate 15. The adjusting ring 19 is fitted on the main shaft of the screw motor 16, and a telescopic rod 18 is fixedly connected to the bottom of the adjusting ring 19. A replacement hole 21 is provided at the bottom of the telescopic rod 18, allowing workers to quickly and easily replace the welding device inside the telescopic rod 18. A limiting sleeve 17 is fitted on the shaft end of the screw motor 16 to limit the travel of the adjusting ring 19 and prevent it from slipping off the main shaft of the screw motor 16.

[0027] An adjustment assembly is also provided on one side of the container rack 11 for docking and positioning the first container 42 and the second container 35. The welding assembly also includes a rotary motor 39. A transmission shaft 37 is clamped at one end of the welding shaft 13, and the rotary motor 39 passes through the other end of the transmission shaft 37. The rotary motor 39 drives the welding assembly to rotate around the device, so that the welding device in the telescopic rod 18 can automatically perform circumferential welding on the pressure vessel. Two sets of fixing rings 43 are provided on both sides of the welding bracket 38 to fix the welding bracket 38 and prevent it from swaying back and forth on the welding shaft 13. A buffer pad 41 made of rubber is provided inside the container rack 11. The rubber material has a good cushioning effect. When the operator puts the first container 42 into the container rack 11, the buffer pad 41 can prevent the first container 42 from being worn. Through the cooperation of the screw motor 16 and the adjustment ring 19, and the drive of the rotary motor 39, single-person welding operation can be realized, and the convenience of the device is improved. It can quickly adjust and automatically weld the pressure vessel, and improve the efficiency of the welding operation.

[0028] Please see as follows Figure 2 , Figure 3 and Figure 4As shown, the adjustment assembly includes an adjustment frame 22, which is located on one side of the container rack 11. A groove is provided at the top of the adjustment frame 22, and a sliding block 23 is fitted inside the groove. A circular fixing frame 24 is provided at the top of the sliding block 23. Adjustment components 25 are fixedly connected to both sides of the circular fixing frame 24. An adjustment hole 26 is provided on one side of the adjustment component 25, and a threaded rod 29 passes through the adjustment hole 26. A stop 27 is provided on one side of the threaded rod 29 for limiting its position, and an adjustment handle 28 is provided on the other side for easy adjustment by the operator. A limiting plate 31 is fitted on the upper part of the first container 42. Two sets of limiting rings 32 are respectively set on both sides of the limiting plate 31 to further increase the stability of the adjustment. A hinge 44 is provided on one side of the circular fixing frame 24, and a card seat 33 is provided on the other side. A buckle 34 is provided in the card seat 33 to fix the second container 35. A detachable baffle 36 is provided on one side of the second container 35 for easy loading and unloading. By moving the sliding block 23 in the slide groove, the adjusting component 25 drives the position of the second container 35 to achieve precise docking with the first container 42.

[0029] When using the device, the user places the first container 42 and the second container 35 into the adjustment frame 22 and the container frame 11, brings the first container 42 into contact with the buffer pad 41, closes the circular fixing frame 24 with the hinge 44 to fit the second container 35, then locks the buckle 34, and rotates the adjustment handle 28 to align and position the second container 35 with the first container 42. Then, the screw motor 16 is turned on to adjust the welding device in the telescopic rod 18 to a suitable welding position, and the rotary motor 39 is turned on. The welding shaft 13 drives the welding bracket 38 to start the rotation welding operation, performing circumferential welding on the first container 42 and the second container 35, which improves convenience and welding efficiency.

[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An auxiliary device for circumferential welding of pressure vessels, comprising a vessel frame (11), characterized in that: The container rack (11) has an installation hole (12) on one side, a bearing (14) is installed in the installation hole (12), a welding shaft (13) passes through the bearing (14), a welding bracket (38) is sleeved on the welding shaft (13), a fixing plate (15) is fixedly connected to one side of the welding bracket (38), a welding assembly is provided on one side of the fixing plate (15), the welding assembly includes a screw motor (16), the screw motor (16) is provided on one side of the fixing plate (15), an adjusting ring (19) is sleeved on the main shaft of the screw motor (16), a telescopic rod (18) is fixedly connected to the bottom of the adjusting ring (19), a replacement hole (21) is opened at the bottom of the telescopic rod (18), a limiting sleeve (17) is sleeved on the shaft end of the screw motor (16), and an adjusting assembly is provided on one side of the container rack (11).

2. The pressure vessel circumferential weld auxiliary device as described in claim 1, characterized in that: The adjustment assembly includes an adjustment frame (22), which is disposed on one side of the container frame (11). The top of the adjustment frame (22) is provided with a sliding groove, and a sliding block (23) is engaged in the sliding groove. A circular fixing frame (24) is provided on the top of the sliding block (23), and adjustment components (25) are fixedly connected to both sides of the circular fixing frame (24).

3. The pressure vessel circumferential weld auxiliary device as described in claim 2, characterized in that: The adjusting member (25) has an adjusting hole (26) on one side, a threaded rod (29) is inserted into the adjusting hole (26), a blocking member (27) is provided on one side of the threaded rod (29), and an adjusting handle (28) is provided on the other side of the threaded rod (29).

4. The pressure vessel circumferential weld auxiliary device as described in claim 3, characterized in that: A limiting plate (31) is sleeved on the threaded rod (29), and two sets of limiting rings (32) are respectively provided on both sides of the limiting plate (31).

5. The pressure vessel circumferential weld auxiliary device as described in claim 2, characterized in that: A hinge (44) is provided on one side of the circular fixing frame (24), and a card seat (33) is provided on the other side of the circular fixing frame (24). A buckle (34) is provided in the card seat (33), and a second container (35) is provided inside the circular fixing frame (24). A detachable baffle (36) is provided on one side of the second container (35).

6. The pressure vessel circumferential weld auxiliary device as described in claim 1, characterized in that: The welding assembly also includes a rotary motor (39), a transmission shaft (37) is clamped at one end of the welding shaft (13), the rotary motor (39) passes through one end of the transmission shaft (37), and two sets of fixing rings (43) are respectively provided on both sides of the welding bracket (38).

7. The pressure vessel circumferential weld auxiliary device as described in claim 1, characterized in that: The container rack (11) is provided with a cushioning pad (41) made of rubber, and the container rack (11) is provided with a first container (42).

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