Pressure vessel welding butt joint device

Abstract

The invention discloses a pressure vessel welding butt joint device, and relates to the field of pressure vessel welding, the pressure vessel welding butt joint device comprises a supporting frame, two mounting frames are slidably connected in the supporting frame, clamping butt joint mechanisms are arranged in the mounting frames, according to the pressure vessel welding butt joint device, a first transmission mechanism drives a mounting shaft to rotate, so that a clamping box rotates to be perpendicular to the ground; the parts can be conveniently and conveniently loaded; and then a first electric telescopic rod pushes a connecting disc and other parts, four clamping blocks move towards the axis at the same time through transmission, and the parts are coaxially clamped and fixed. And then the two parts are rotated to the horizontal position through the first transmission mechanism, the driving motor drives the two-way threaded rod to rotate, the two mounting frames are close to each other, and coaxial butt joint of the parts is achieved. By means of the design, the butt joint accuracy is guaranteed, meanwhile, the second transmission mechanism drives the parts obtained after butt joint to rotate synchronously, the butt joint position can be conveniently and comprehensively welded through the welding head, and the welding effect of the pressure container is effectively improved.

Description

Technical Field

[0001] This invention relates to pressure vessel welding technology, and more specifically to a pressure vessel welding and docking device. Background Technology

[0002] Pressure vessels have extremely wide and critical applications in many industrial sectors, such as chemical, petroleum, and energy. Their manufacturing quality directly affects the safety and stability of the production process and the overall performance of the product. Welding, as a core step in the pressure vessel manufacturing process, plays a decisive role in the final quality of the pressure vessel due to the precision of the joints and the level of welding quality.

[0003] Existing welding equipment has relatively limited functionality and a low level of automation. After the components are joined, the welding process usually requires manual operation of the equipment. This not only demands a high level of skill from the operators but also results in low welding efficiency, making it difficult to meet the needs of large-scale industrial production. Furthermore, after welding, subsequent processes such as grinding, cleaning, and airtightness monitoring are required manually. The entire process is cumbersome and time-consuming, further limiting the production efficiency of pressure vessels.

[0004] In summary, the automation level of existing pressure vessel welding equipment is significantly insufficient, which seriously restricts the development of the pressure vessel manufacturing industry. Summary of the Invention

[0005] The purpose of this invention is to provide a pressure vessel welding and docking device to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a pressure vessel welding and butt welding device, comprising:

[0007] A support frame, in which two mounting frames are slidably connected, and each mounting frame is provided with a clamping and docking mechanism for clamping the pressure vessel; the support frame is also provided with a drive mechanism connected to the mounting frames for moving the two mounting frames.

[0008] The top of the support frame is equipped with a welding and grinding mechanism, which is used to weld and grind the pressure vessel after docking.

[0009] Furthermore, the clamping and docking mechanism includes a mounting shaft rotatably connected to the mounting frame, a mounting block fixedly sleeved on the outer surface of the mounting shaft, a mounting plate fixedly connected to one side of the mounting block, a transmission shaft rotatably connected to one side of the mounting plate, a clamping plate fixedly connected to one end of the transmission shaft, multiple clamping boxes fixedly connected to one side of the clamping plate, a transmission plate slidably connected to the clamping box, springs fixedly connected to the clamping box on both sides of the transmission plate via connecting blocks, an adjusting bolt threaded to one side of the transmission plate, a clamping block fixedly connected to one end of the adjusting bolt, a transmission groove formed on the transmission plate, a transmission inclined block slidably connected to one side of the transmission groove, a transmission rod slidably connected to the clamping box fixedly connected to one side of the transmission inclined block, a connecting plate slidably connected to one end of the transmission rod fixedly connected to one end of the transmission rod, a connecting plate fixedly connected to one side of the connecting plate, and a first electric telescopic rod fixedly connected to the clamping plate on one side of the connecting plate.

[0010] The outer surface of the mounting shaft is connected to a first transmission mechanism that is connected to the mounting frame. The first transmission mechanism is used to drive the mounting shaft to rotate. The outer surface of the shaft is connected to a second transmission mechanism that is connected to the mounting plate. The second transmission mechanism is used to drive the shaft to rotate.

[0011] Furthermore, the first transmission mechanism includes a second electric telescopic rod fixedly connected to the mounting frame. One end of the second electric telescopic rod is fixedly connected to a first transmission rack via a connecting block. One side of the first transmission rack is meshed with a first transmission gear fixedly sleeved on the mounting shaft.

[0012] Furthermore, the second transmission mechanism includes a transmission motor fixedly connected to the mounting plate. The output end of the transmission motor is fixedly connected to a first rotating shaft via a coupling. A first gear is fixedly sleeved on the outer surface of the first rotating shaft, and a second gear fixedly sleeved on the outer surface of the first gear is meshed with the transmission shaft.

[0013] Furthermore, a rubber pad is fixedly connected to one side of the clamping block.

[0014] Furthermore, the welding and grinding mechanism includes a support shaft rotatably connected to the support frame. A rotating disk is fixedly connected to the top of the support shaft. Two third electric telescopic rods are fixedly connected to the top of the rotating disk. A welding head is fixedly connected to the top of one of the third electric telescopic rods via a connecting block, and a grinding block is fixedly connected to the top of the other third electric telescopic rod via a connecting block. Two fourth electric telescopic rods are fixedly connected to the top of the rotating disk. An airtightness monitor is fixedly connected to the top of one of the fourth electric telescopic rods via a connecting block, and a cleaning block is fixedly connected to the top of the other fourth electric telescopic rod via a connecting block. A third transmission mechanism connected to the support frame is driven to rotate the support shaft via a transmission connection to the outer surface of the support shaft.

[0015] Furthermore, the third transmission mechanism includes a fifth electric telescopic rod fixedly connected to the support frame. One end of the fifth electric telescopic rod is fixedly connected to a second transmission rack via a connecting block. One side of the second transmission rack is meshed with a second transmission gear fixedly sleeved to the support shaft.

[0016] Furthermore, the driving mechanism includes a drive motor fixedly connected to the support frame, and the output end of the drive motor is fixedly connected to a bidirectional threaded rod rotatably connected to the support frame via a coupling. The outer surface of the bidirectional threaded rod is threadedly connected to the mounting frame, and a guide rod fixedly connected to the support frame is slidably connected to the mounting frame.

[0017] Compared with the prior art, the pressure vessel welding and docking device provided by the present invention has the following advantages:

[0018] (1) The first transmission mechanism drives the mounting shaft to rotate, making the clamping box perpendicular to the ground, facilitating the loading of components. Then, the first electric telescopic rod pushes the connecting plate and other components, causing the four clamping blocks to move simultaneously towards the axis, thus clamping and fixing the components coaxially. The first transmission mechanism then rotates the two components to a horizontal position, driving the motor to rotate the bidirectional threaded rod, bringing the two mounting frames closer together and achieving coaxial docking of the components. This design ensures the accuracy of the docking, providing a good foundation for subsequent welding. Simultaneously, the second transmission mechanism drives the docked components to rotate synchronously, facilitating comprehensive welding of the docking joint by the welding head, effectively improving the welding effect of the pressure vessel.

[0019] (2) After the components are joined, the third transmission mechanism drives the support shaft to rotate, causing the welding head to rotate to the bottom of the joint for welding. During welding, the components are rotated to achieve full welding. After welding, the grinding block, cleaning block, and airtightness detector are sequentially rotated to the bottom of the joint via the transmission mechanism for grinding, cleaning, and airtightness monitoring, respectively. The entire process requires no frequent manual intervention and automatically completes a series of operations such as welding, grinding, cleaning, and monitoring, realizing integrated welding processing of pressure vessels, greatly shortening the processing time, and further improving the welding efficiency of pressure vessels. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a first perspective view of the external structure of the present invention;

[0022] Figure 2 This is a second perspective view of the external structure of the present invention;

[0023] Figure 3 This is a third perspective view of the external structure of the present invention;

[0024] Figure 4 This is a front view of the internal structure of the clamping box of the present invention;

[0025] Figure 5 For the present invention Figure 1 Enlarged view of A in the middle;

[0026] Figure 6 For the present invention Figure 2 A magnified view of B in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Support frame; 2. Mounting frame; 11. Mounting shaft; 12. Mounting block; 13. Mounting plate; 14. Drive shaft; 15. Clamping plate; 16. Clamping box; 17. Drive plate; 18. Spring; 19. Clamping block; 190. Drive slant groove; 191. Drive slant block; 192. Drive rod; 193. Connecting plate; 194. Connecting plate; 195. First electric telescopic rod; 196. Adjusting bolt; 21. Second electric telescopic rod; 22. First drive rack; 23. First transmission gear; 31. Transmission motor; 32. First rotating shaft; 33. First gear; 34. Second gear; 41. Support shaft; 42. Rotating disk; 43. Third electric telescopic rod; 44. Welding head; 45. Grinding block; 46. Fourth electric telescopic rod; 47. Air tightness monitor; 48. Cleaning block; 51. Fifth electric telescopic rod; 52. Second transmission rack; 53. Second transmission gear; 61. Drive motor; 62. Bidirectional threaded rod. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] Please see Figures 1 to 6 As shown, the pressure vessel welding and docking device includes a support frame 1, two mounting frames 2 are slidably connected inside the support frame 1, and a clamping and docking mechanism is provided inside the mounting frames 2 for clamping the pressure vessel. A drive mechanism connected to the mounting frames 2 is provided inside the support frame 1 for moving the two mounting frames 2.

[0032] The top of the support frame 1 is equipped with a welding and grinding mechanism, which is used to weld and grind the pressure vessel after docking.

[0033] The drive mechanism includes a drive motor 61 fixedly connected to the support frame 1. The drive motor 61 is controlled by a PLC programming program, which can control the forward and reverse rotation and rotation angle of the drive motor 61. The output end of the drive motor 61 is fixedly connected to a bidirectional threaded rod 62 rotatably connected to the support frame 1 through a coupling. The outer surface of the bidirectional threaded rod 62 is threadedly connected to the mounting frame 2. A guide rod fixedly connected to the support frame 1 is slidably connected to the mounting frame 2. The drive motor 61 drives the bidirectional threaded rod 62 to rotate, and the bidirectional threaded rod 62 drives the two mounting frames 2 to move away from each other and closer to each other.

[0034] The clamping and docking mechanism includes a mounting shaft 11 rotatably connected to the mounting frame 2. A mounting block 12 is fixedly sleeved on the outer surface of the mounting shaft 11. A mounting plate 13 is fixedly connected to one side of the mounting block 12. A drive shaft 14 is rotatably connected to one side of the mounting plate 13. A clamping plate 15 is fixedly connected to one end of the drive shaft 14. Multiple clamping boxes 16 are fixedly connected to one side of the clamping plate 15. A drive plate 17 is slidably connected to the clamping box 16. Springs 18, which are fixedly connected to the clamping boxes 16, are fixedly connected to both sides of the drive plate 17 via connecting blocks. An adjustment mechanism is threaded onto one side of the drive plate 17. Bolt 196, one end of the adjusting bolt 196 is fixedly connected to the clamping block 19, the transmission plate 17 is provided with a transmission groove 190, a transmission block 191 is slidably connected to one side of the transmission groove 190, a transmission rod 192 is fixedly connected to one side of the transmission block 191 and is slidably connected to the clamping box 16, a connecting plate 193 is fixedly connected to one end of the transmission rod 192 and is slidably connected to the clamping box 16, a connecting plate 194 is fixedly connected to one side of the connecting plate 193, and a first electric telescopic rod 195 is fixedly connected to one side of the connecting plate 194 and is fixedly connected to the clamping plate 15;

[0035] The outer surface of the mounting shaft 11 is connected to a first transmission mechanism that is connected to the mounting frame 2. The first transmission mechanism is used to drive the mounting shaft 11 to rotate. The outer surface of the transmission shaft 14 is connected to a second transmission mechanism that is connected to the mounting plate 13. The second transmission mechanism is used to drive the transmission shaft 14 to rotate.

[0036] The first transmission mechanism includes a second electric telescopic rod 21 fixedly connected to the mounting frame 2. One end of the second electric telescopic rod 21 is fixedly connected to a first transmission rack 22 via a connecting block. One side of the first transmission rack 22 is meshed with a first transmission gear 23 fixedly sleeved with the mounting shaft 11. The second electric telescopic rod 21 drives the first transmission rack 22 to move, the first transmission rack 22 drives the first transmission gear 23 to rotate, and the first transmission gear 23 drives the mounting shaft 11 to rotate.

[0037] The second transmission mechanism includes a transmission motor 31 fixedly connected to the mounting plate 13. The transmission motor 31 is controlled by a PLC programming program, which can control the forward and reverse rotation and the rotation angle of the transmission motor 31. The output end of the transmission motor 31 is fixedly connected to a first rotating shaft 32 through a coupling. A first gear 33 is fixedly sleeved on the outer surface of the first rotating shaft 32. A second gear 34 fixedly sleeved on the outer surface of the first gear 33 is meshed with the transmission shaft 14. The transmission motor 31 drives the first rotating shaft 32 to rotate, and the first rotating shaft 32 drives the transmission shaft 14 to rotate through the first gear 33 and the second gear 34.

[0038] A rubber pad is fixedly connected to one side of the clamping block 19.

[0039] The first transmission mechanism drives the mounting shaft 11 to rotate, which in turn drives the mounting block 12 to rotate. The mounting block 12 then drives the mounting plate 13, transmission shaft 14, and clamping plate 15 to rotate. The clamping plate 15 drives the clamping box 16 to rotate to a position perpendicular to the ground. The pressure vessel components to be welded are then placed onto the two clamping plates 15, enabling convenient loading of the pressure vessel components. Subsequently, the first electric telescopic rod 195 drives the connecting plate 194 to move, which in turn drives the connecting plate 193 and transmission rod 192 to move. The transmission inclined block 191 slides on the transmission inclined groove 190, causing the transmission plate 17 to move. The spring 18 is compressed, and then the transmission plate 17 moves the adjusting bolt 196 and the clamping block 19, causing all four clamping blocks 19 to move simultaneously towards the axial position of the clamping plate 15. This coaxially clamps and fixes the pressure vessel components. After clamping and fixing, the first transmission mechanism drives the mounting shaft 11 to rotate, causing two clamped pressure vessel components to rotate to a horizontal position. Then, the drive motor 61 drives the bidirectional threaded rod 62 to rotate. Rod 62 moves the two mounting frames 2 closer together, which in turn moves the two clamped pressure vessel components closer together, allowing them to be coaxially aligned. After complete alignment, the second transmission mechanism drives the transmission shaft 14 to rotate, which in turn drives the clamping disc 15 to rotate. The clamping disc 15 then drives the two clamped pressure vessel components to rotate synchronously, facilitating subsequent welding of the joint by the welding head 44. After welding, the first electric telescopic rod 195 moves the connecting disc 194, causing the clamping block 19 to no longer hold the welded pressure vessel. The robotic arm then clamps the welded pressure vessel, while the drive motor 61 rotates in the opposite direction, moving the two mounting frames 2 away from each other. The robotic arm then removes the pressure vessel, thus enabling portable loading and unloading of the pressure vessel during welding. Simultaneously, the coaxial clamping and automatic alignment during the alignment process further improves the alignment accuracy of the pressure vessel before welding, thereby improving the subsequent welding effect. The alignment also causes the pressure vessel to rotate, facilitating comprehensive welding of the joint by the welding head 44, further improving the welding efficiency of the pressure vessel.

[0040] Example 2

[0041] Based on Example 1, please refer to Figure 1 , Figure 2 and Figure 5As shown, the welding and grinding mechanism includes a support shaft 41 rotatably connected to the support frame 1. A rotating disk 42 is fixedly connected to the top of the support shaft 41. Two third electric telescopic rods 43 are fixedly connected to the top of the rotating disk 42. A welding head 44 is fixedly connected to the top of one of the third electric telescopic rods 43 via a connecting block, and a grinding block 45 is fixedly connected to the top of the other third electric telescopic rod 43 via a connecting block. Two fourth electric telescopic rods 46 are fixedly connected to the top of the rotating disk 42. An airtightness monitor 47 is fixedly connected to the top of one of the fourth electric telescopic rods 46 via a connecting block, and a cleaning block 48 is fixedly connected to the top of the other fourth electric telescopic rod 46 via a connecting block. A third transmission mechanism connected to the support frame 1 is connected to the outer surface of the support shaft 41. The third transmission mechanism is used to drive the support shaft 41 to rotate.

[0042] The third transmission mechanism includes a fifth electric telescopic rod 51 fixedly connected to the support frame 1. One end of the fifth electric telescopic rod 51 is fixedly connected to a second transmission rack 52 via a connecting block. One side of the second transmission rack 52 is meshed with a second transmission gear 53 fixedly sleeved with the support shaft 41. The fifth electric telescopic rod 51 drives the second transmission rack 52 to move, the second transmission rack 52 drives the second transmission gear 53 to rotate, and the second transmission gear 53 drives the support shaft 41 to rotate.

[0043] After the two components of the pressure vessel are joined, the third transmission mechanism drives the support shaft 41 to rotate. The support shaft 41 drives the rotating disk 42 to rotate, which in turn drives the third electric telescopic rod 43 and the welding head 44 to rotate, bringing them to the bottom of the joint. Then, the third electric telescopic rod 43 drives the welding head 44 to move upwards to weld the joint. During the welding process, the joined pressure vessel is simultaneously rotated, allowing the welding head 44 to perform a complete weld on the joint. After welding, the third transmission mechanism drives the support shaft 41 to rotate, causing the grinding block 45 to rotate to the bottom of the joint. The third electric telescopic rod 43 then drives the grinding block 45... The device moves upward, simultaneously rotating the welded pressure vessel to allow the grinding block 45 to grind the weld joint smooth. After smoothing, the third transmission mechanism drives the support shaft 41 to rotate, causing the cleaning block 48 to rotate to the bottom of the joint. Then, the fourth electric telescopic rod 46 drives the cleaning block 48 to clean the ground weld joint. After cleaning, the airtightness monitor 47 comprehensively monitors the airtightness of the weld joint, thus realizing fully automatic welding of pressure vessel components after docking, and automatic grinding, cleaning, and airtightness monitoring of the weld joint. This achieves integrated welding processing of the pressure vessel, further improving the welding effect and efficiency.

[0044] Working principle: In use, the first transmission mechanism drives the mounting shaft 11 to rotate, which in turn drives the mounting block 12 to rotate. The mounting block 12 then drives the mounting plate 13, transmission shaft 14, and clamping plate 15 to rotate. The clamping plate 15 drives the clamping box 16 to rotate to a position perpendicular to the ground. The pressure vessel components to be welded are then placed onto the two clamping plates 15, enabling convenient loading of the pressure vessel components. Subsequently, the first electric telescopic rod 195 drives the connecting plate 194 to move, which in turn drives the connecting plate 193 and transmission rod 192 to move. The transmission rod 192 drives the transmission inclined block 191 to slide on the transmission inclined groove 190, which in turn moves the transmission plate 17. The spring 18 is compressed, and then the transmission plate 17 drives the adjusting bolt 196 and the clamping block 19 to move, so that the four clamping blocks 19 move simultaneously towards the axial position of the clamping plate 15, thus clamping and fixing the pressure vessel components coaxially. After clamping and fixing, the first transmission mechanism drives the mounting shaft 11 to rotate, so that the two clamped pressure vessel components rotate to a horizontal position. Then, the drive motor 61 drives the bidirectional threaded rod 62 to rotate. The bidirectional threaded rod 62 drives the two mounting frames 2 to move closer together, which in turn drives the two clamped pressure vessel components to move closer together, enabling them to align coaxially. After complete alignment, the second transmission mechanism drives the transmission shaft 14 to rotate, which in turn drives the clamping disc 15 to rotate. The clamping disc 15 then drives the two clamped pressure vessel components to rotate synchronously, facilitating subsequent welding of the joint by the welding head 44. After welding, the first electric telescopic rod 195 moves the connecting disc 194, causing the clamping block 19 to no longer hold the welded components. The pressure vessel is then clamped by a robotic arm after welding, while the drive motor 61 rotates in the opposite direction, causing the two mounting frames 2 to move away from each other. The robotic arm then removes the pressure vessel, thus enabling portable loading and unloading of the pressure vessel during welding. Simultaneously, coaxial clamping and automatic docking are performed during the docking process, further improving the docking accuracy of the pressure vessel before welding, thereby improving the subsequent welding effect. At the same time, the docked pressure vessel is rotated to facilitate comprehensive welding of the subsequent welding joints 44 at the docking points, further improving the welding efficiency of the pressure vessel.

[0045] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pressure vessel welding and butt welding device, characterized in that, include: A support frame (1) is provided, and two mounting frames (2) are slidably connected inside the support frame (1). A clamping and docking mechanism is provided inside the mounting frame (2) for clamping the pressure vessel. A driving mechanism connected to the mounting frame (2) is provided inside the support frame (1) for driving the two mounting frames (2) to move. The top of the support frame (1) is provided with a welding and grinding mechanism, which is used to weld and grind the pressure vessel after docking.

2. The pressure vessel welding and butt welding device according to claim 1, characterized in that, The clamping and docking mechanism includes a mounting shaft (11) rotatably connected to the mounting frame (2). A mounting block (12) is fixedly sleeved on the outer surface of the mounting shaft (11). A mounting plate (13) is fixedly connected to one side of the mounting block (12). A transmission shaft (14) is rotatably connected to one side of the mounting plate (13). A clamping plate (15) is fixedly connected to one end of the transmission shaft (14). A plurality of clamping boxes (16) are fixedly connected to one side of the clamping plate (15). A transmission plate (17) is slidably connected to the clamping box (16). Springs (18) fixedly connected to the clamping box (16) are fixedly connected to both sides of the transmission plate (17) via connecting blocks. A threaded connection is made to one side of the transmission plate (17). An adjusting bolt (196) is provided, one end of which is fixedly connected to a clamping block (19). A transmission groove (190) is provided on the transmission plate (17). A transmission block (191) is slidably connected to one side of the transmission groove (190). A transmission rod (192) is slidably connected to the clamping box (16) on one side of the transmission block (191). A connecting plate (193) is slidably connected to the clamping box (16) on one end of the transmission rod (192). A connecting plate (194) is fixedly connected to one side of the connecting plate (193). A first electric telescopic rod (195) is fixedly connected to the clamping plate (15) on one side of the connecting plate (194). The outer surface of the mounting shaft (11) is connected to a first transmission mechanism that is connected to the mounting frame (2). The first transmission mechanism is used to drive the mounting shaft (11) to rotate. The outer surface of the transmission shaft (14) is connected to a second transmission mechanism that is connected to the mounting plate (13). The second transmission mechanism is used to drive the transmission shaft (14) to rotate.

3. The pressure vessel welding and butt welding device according to claim 2, characterized in that, The first transmission mechanism includes a second electric telescopic rod (21) fixedly connected to the mounting frame (2). One end of the second electric telescopic rod (21) is fixedly connected to a first transmission rack (22) via a connecting block. One side of the first transmission rack (22) is meshed with a first transmission gear (23) fixedly sleeved with the mounting shaft (11).

4. The pressure vessel welding and butt welding device according to claim 2, characterized in that, The second transmission mechanism includes a transmission motor (31) fixedly connected to the mounting plate (13). The output end of the transmission motor (31) is fixedly connected to a first rotating shaft (32) via a coupling. A first gear (33) is fixedly sleeved on the outer surface of the first rotating shaft (32). A second gear (34) is fixedly sleeved on the outer surface of the first gear (33) and is meshed with the transmission shaft (14).

5. The pressure vessel welding and butt welding device according to claim 2, characterized in that, A rubber pad is fixedly connected to one side of the clamping block (19).

6. The pressure vessel welding and butt welding device according to claim 1, characterized in that, The welding and grinding mechanism includes a support shaft (41) rotatably connected to the support frame (1). A rotating disk (42) is fixedly connected to the top of the support shaft (41). Two third electric telescopic rods (43) are fixedly connected to the top of the rotating disk (42). A welding head (44) is fixedly connected to the top of one of the third electric telescopic rods (43) through a connecting block. A grinding block (45) is fixedly connected to the top of the other third electric telescopic rod (43) through a connecting block. Two fourth electric telescopic rods (46) are fixedly connected to the top of the rotating disk (42). An airtightness monitor (47) is fixedly connected to the top of one of the fourth electric telescopic rods (46) through a connecting block. A cleaning block (48) is fixedly connected to the top of the other fourth electric telescopic rod (46) through a connecting block. A third transmission mechanism connected to the support frame (1) is connected to the outer surface of the support shaft (41). The third transmission mechanism is used to drive the support shaft (41) to rotate.

7. The pressure vessel welding and butt welding device according to claim 6, characterized in that, The third transmission mechanism includes a fifth electric telescopic rod (51) fixedly connected to the support frame (1). One end of the fifth electric telescopic rod (51) is fixedly connected to a second transmission rack (52) via a connecting block. One side of the second transmission rack (52) is meshed with a second transmission gear (53) fixedly sleeved with the support shaft (41).

8. The pressure vessel welding and butt welding device according to claim 1, characterized in that, The driving mechanism includes a drive motor (61) fixedly connected to the support frame (1). The output end of the drive motor (61) is fixedly connected to a bidirectional threaded rod (62) rotatably connected to the support frame (1) via a coupling. The outer surface of the bidirectional threaded rod (62) is threadedly connected to the mounting frame (2). A guide rod fixedly connected to the support frame (1) is slidably connected to the mounting frame (2).

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