Welded pipe outer wall rust removal device for welded pipe machining

Abstract

The utility model relates to the technical field of welded pipe machining, and discloses a welded pipe outer wall rust removal device for welded pipe machining, which comprises a machining table, a fixing mechanism is arranged at the top of the machining table, a welded pipe body is arranged on the inner side of the fixing mechanism, a rust removal mechanism is arranged at the top of the machining table, and a sliding rod is fixedly connected to the inner side of the machining table. A base is fixedly connected to the bottom of the machining table, the fixing mechanism comprises a fixing assembly and a rotating assembly, the fixing assembly is arranged at the top of the machining table, and during use, through the arranged fixing mechanism, when rust removal work needs to be conducted on a welded pipe, a first servo motor drives a first two-way threaded rod to rotate; the movable frames on the two sides drive the first fixing frame and the second fixing frame to synchronously move in the same direction or in the opposite directions, through cooperation of the first rotating wheel and the second rotating wheel, welding pipe bodies with different pipe diameters can be clamped and fixed in a self-adaptive mode, and the top of the first fixing frame and the second fixing frame are designed to be in a V shape.

Description

Technical Field

[0001] This utility model relates to the technical field of welded pipe processing, specifically to a rust removal device for the outer wall of welded pipes. Background Technology

[0002] In scenarios involving the transportation of low-pressure fluids such as water, coal and gas, fire fighting, air, oil, and heating steam, welded steel pipes have become the preferred pipe material due to their good pressure-bearing capacity and economy. In mechanical structures such as agricultural greenhouse construction, furniture manufacturing, and scaffolding assembly, welded pipes are also widely used due to their ease of processing and moderate strength. During production, storage, and transportation, the outer wall of welded pipes is highly susceptible to oxidation reactions with oxygen and moisture in the air, forming rust. The rust layer not only reduces the corrosion resistance and aesthetics of the welded pipe, but also leads to thinning of the pipe wall and decreased strength, causing leakage during fluid transportation and posing safety hazards in mechanical structure applications, seriously affecting the service life and safety of the welded pipe.

[0003] According to the description in the patent announcement (authorization announcement number: CN222726332U) of a rust removal device for the outer wall of welded pipe, the rust removal device includes "machine base, rust removal components" etc., to achieve rust removal work.

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] This rust removal device for the outer wall of welded pipes utilizes a machine base and rust removal components to perform rust removal. During use, the welded pipe is fixed by a three-jaw chuck. However, the fixed position of the three-jaw chuck makes it impossible to fix welded pipes of different lengths, affecting its applicability. Furthermore, the position of the grinding wheel is also fixed during the rust removal process, making it impossible to remove rust from different locations. Therefore, this device needs to be improved. Utility Model Content

[0006] The purpose of this utility model is to provide a rust removal device for the outer wall of welded pipes used in welded pipe processing, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a rust removal device for the outer wall of welded pipe for welded pipe processing, comprising a processing table, a fixing mechanism on the top of the processing table, a welded pipe body on the inner side of the fixing mechanism, a rust removal mechanism on the top of the processing table, a sliding rod fixedly connected to the inner side of the processing table, and a base fixedly connected to the bottom of the processing table.

[0008] The fixing mechanism includes a fixing component and a rotating component. The fixing component is disposed on the top of the processing table, and the rotating component is disposed on the right side of the processing table.

[0009] The fixing component includes a fixing frame, which is fixedly connected to the bottom of the processing table. A first servo motor is fixedly connected to the right side of the fixing frame, and a first bidirectional threaded rod is fixedly connected to the left side of the first servo motor. The left side of the first bidirectional threaded rod is rotatably connected to the fixing frame. A movable frame is threadedly connected to the periphery of the first bidirectional threaded rod. A first fixing frame is fixedly connected to the rear side of the movable frame. The first fixing frame is slidably connected to the periphery of the slide rod. A first rotating wheel is rotatably connected to the inner side of the first fixing frame. The first fixing frame is located around the welded pipe body. A support frame is fixedly connected to the top of the movable frame. A first hydraulic cylinder is fixedly connected to the top of the support frame. A second fixing frame is fixedly connected to the bottom of the first hydraulic cylinder. The second fixing frame is located around the welded pipe body. A second rotating wheel is rotatably connected to the inner side of the second fixing frame. A limit shaft is fixedly connected to the top of the second fixing frame. The limit shaft is slidably connected to the inside of the support frame.

[0010] Preferably, the outer peripheries of the first fixing frame, the first rotating wheel, the second fixing frame, and the second rotating wheel are in contact with the outer periphery of the welded pipe body, the second fixing frame is slidably connected inside the first fixing frame, and the top of the first fixing frame and the second fixing frame are both V-shaped, which facilitates the fixing of welded pipe bodies of different sizes under the action of the first fixing frame and the second fixing frame.

[0011] Preferably, the movable frame, the first fixed frame, the first rotating wheel, the support frame, the first hydraulic cylinder, the second fixed frame, the second rotating wheel, and the limiting shaft are arranged in two sets and symmetrically distributed on the left and right sides of the top of the processing table, which facilitates further improvement of the fixing effect.

[0012] Preferably, the rotating assembly includes a support frame, which is fixedly connected to the right side of the processing table. A fixed column is slidably connected inside the support frame. A limit pin is threadedly connected inside the fixed column. A fixed plate is fixedly connected to the top of the fixed column. A second servo motor is fixedly connected to the right side of the fixed plate. A rotating rod is fixedly connected to the left side of the second servo motor. A rectangular frame is fixedly connected to the left side of the rotating rod. A second bidirectional threaded rod is rotatably connected inside the rectangular frame. A knob is fixedly connected to the top of the second bidirectional threaded rod. A connecting frame is threadedly connected to the outer side of the second bidirectional threaded rod. A fixed wheel is fixedly connected to the inner side of the connecting frame. The fixed wheel is located inside the welded pipe body.

[0013] Preferably, the rotating rod is rotatably connected to the inside of the fixed plate, the outer periphery of the fixed wheel is in contact with the inner side of the welded pipe body, and the outer periphery of the fixed wheel is provided with an anti-slip pad, so as to facilitate the rotation of the welded pipe body by the fixed wheel.

[0014] Preferably, the rust removal mechanism includes a second hydraulic cylinder, which is fixedly connected to the left side of the processing table. A movable seat is fixedly connected to the right side of the second hydraulic cylinder. The movable seat is slidably connected to the inside of the processing table. A movable frame is fixedly connected to the top of the movable seat. A third hydraulic cylinder is fixedly connected to the top of the movable frame. A mounting plate is fixedly connected to the bottom of the third hydraulic cylinder. A third servo motor is fixedly connected to the top of the mounting plate. A rotating shaft is fixedly connected to the bottom of the third servo motor. A grinding disc is fixedly connected to the bottom of the rotating shaft. The grinding disc is disposed around the periphery of the welded pipe body.

[0015] Preferably, the mounting plate is slidably connected to the movable frame, the rotating shaft is rotatably connected to the inside of the mounting plate, and the bottom of the grinding disc is in contact with the outer periphery of the welded pipe body, so as to facilitate the rust removal work of the welded pipe body by the grinding disc.

[0016] Compared with the prior art, this utility model provides a rust removal device for the outer wall of welded pipes in welded pipe processing, which has the following beneficial effects:

[0017] This rust removal device for welded pipe processing utilizes a fixed mechanism. When rust removal is required, a first servo motor drives a first bidirectional threaded rod to rotate, causing the two moving frames to move synchronously towards or away from the first and second fixed frames. Through the cooperation of the first and second rotating wheels, it can adaptively clamp and fix welded pipes of different diameters. The top of the first fixed frame and the second fixed frame are V-shaped, increasing the contact area with the welded pipe. Combined with the sliding guide of the limiting shaft, it ensures the stability of the fixation while avoiding damage to the surface of the welded pipe, effectively improving the applicability of the device to welded pipes of different specifications. The second servo motor drives the rotating rod and rectangular frame to rotate. By adjusting the second bidirectional threaded rod with a knob, the fixed wheels on the connecting frame can move along the inner side of the welded pipe body and press against it, achieving center positioning and rotational drive of the welded pipe.

[0018] This rust removal device for welded pipe processing utilizes a rust removal mechanism. A second hydraulic cylinder drives a movable seat to move laterally within the processing table, while a third hydraulic cylinder moves the mounting plate up and down. Combined with a third servo motor driving the grinding disc to rotate at high speed, the device enables flexible adjustment of the grinding disc in both horizontal and vertical directions. This allows it to adapt to welded pipes of different lengths and diameters, performing comprehensive rust removal on the surface of the welded pipe body and effectively improving rust removal efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the fixed mechanism structure;

[0022] Figure 3 This is a schematic diagram of the fixed component structure;

[0023] Figure 4 This is a schematic diagram of the top structure of the mobile frame;

[0024] Figure 5 This is a schematic diagram of the rotating component structure;

[0025] Figure 6 This is a schematic diagram of the rust removal mechanism.

[0026] In the diagram: 1. Processing table; 2. Welded pipe body; 3. Fixing mechanism; 4. Rust removal mechanism; 5. Slide rod; 6. Base; 31. Fixing assembly; 32. Rotating assembly; 311. First servo motor; 312. Fixing frame; 313. First bidirectional threaded rod; 314. Moving frame; 315. First fixing frame; 316. First rotating wheel; 317. Support frame; 318. First hydraulic cylinder; 319. Limiting shaft; 3191. Second fixing frame; 3192. Second rotating... 321. Wheel; 322. Support frame; 323. Fixed column; 324. Limit pin; 325. Fixed plate; 326. Second servo motor; 327. Rotating rod; 328. Rectangular frame; 329. Second bidirectional threaded rod; 320. Connecting frame; 3291. Fixed wheel; 3292. Knob; 41. Second hydraulic cylinder; 42. Moving seat; 43. Moving frame; 44. Third hydraulic cylinder; 45. Third servo motor; 46. Mounting plate; 47. Rotating shaft; 48. Grinding disc. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] This utility model provides the following technical solution: Example

[0030] Please see Figure 1-6 This utility model provides a technical solution: a rust removal device for the outer wall of welded pipe for welded pipe processing, including a processing table 1, a fixing mechanism 3 is provided on the top of the processing table 1, a welded pipe body 2 is provided inside the fixing mechanism 3, a rust removal mechanism 4 is provided on the top of the processing table 1, a sliding rod 5 is fixedly connected to the inside of the processing table 1, and a base 6 is fixedly connected to the bottom of the processing table 1.

[0031] The fixing mechanism 3 includes a fixing component 31 and a rotating component 32. The fixing component 31 is disposed on the top of the processing table 1, and the rotating component 32 is disposed on the right side of the processing table 1.

[0032] The fixing component 31 includes a fixing frame 312, which is fixedly connected to the bottom of the processing table 1. A first servo motor 311 is fixedly connected to the right side of the fixing frame 312, and a first bidirectional threaded rod 313 is fixedly connected to the left side of the first servo motor 311. The left side of the first bidirectional threaded rod 313 is rotatably connected inside the fixing frame 312. A movable frame 314 is threadedly connected to the outer side of the first bidirectional threaded rod 313. A first fixing frame 315 is fixedly connected to the rear side of the movable frame 314. The first fixing frame 315 is slidably connected to the outer side of the slide rod 5, and the inner side of the first fixing frame 315 is rotatably connected to... A first rotating wheel 316 is connected to the first fixed frame 315, which is located around the welded pipe body 2. A support frame 317 is fixedly connected to the top of the movable frame 314. A first hydraulic cylinder 318 is fixedly connected to the top of the support frame 317. A second fixed frame 3191 is fixedly connected to the bottom of the first hydraulic cylinder 318. The second fixed frame 3191 is located around the welded pipe body 2. A second rotating wheel 3192 is rotatably connected to the inner side of the second fixed frame 3191. A limit shaft 319 is fixedly connected to the top of the second fixed frame 3191. The limit shaft 319 is slidably connected to the inside of the support frame 317.

[0033] The outer peripheries of the first fixing frame 315, the first rotating wheel 316, the second fixing frame 3191, and the second rotating wheel 3192 are in contact with the outer periphery of the welded pipe body 2, respectively. The second fixing frame 3191 is slidably connected inside the first fixing frame 315, and the top of the first fixing frame 315 and the second fixing frame 3191 are both V-shaped, which facilitates the fixing of welded pipe bodies 2 of different sizes under the action of the first fixing frame 315 and the second fixing frame 3191.

[0034] The movable frame 314, the first fixed frame 315, the first rotating wheel 316, the support frame 317, the first hydraulic cylinder 318, the second fixed frame 3191, the second rotating wheel 3192 and the limiting shaft 319 are provided in two sets and are symmetrically distributed on the left and right sides of the top of the processing table 1, which facilitates further improvement of the fixing effect.

[0035] Please see Figure 1-6 This utility model provides a technical solution: the rotating component 32 includes a support frame 321, which is fixedly connected to the right side of the processing table 1. A fixed column 322 is slidably connected inside the support frame 321. A limit pin 323 is threadedly connected inside the fixed column 322. A fixed plate 324 is fixedly connected to the top of the fixed column 322. A second servo motor 325 is fixedly connected to the right side of the fixed plate 324. A rotating rod 326 is fixedly connected to the left side of the second servo motor 325. A rectangular frame 327 is fixedly connected to the left side of the rotating rod 326. A second bidirectional threaded rod 328 is rotatably connected inside the rectangular frame 327. A knob 3292 is fixedly connected to the top of the second bidirectional threaded rod 328. A connecting frame 329 is threadedly connected to the outer periphery of the second bidirectional threaded rod 328. A fixed wheel 3291 is fixedly connected to the inner side of the connecting frame 329. The fixed wheel 3291 is located inside the welded pipe body 2.

[0036] The rotating rod 326 is rotatably connected to the inside of the fixed plate 324. The outer periphery of the fixed wheel 3291 is in contact with the inner side of the welded pipe body 2, and the outer periphery of the fixed wheel 3291 is provided with an anti-slip pad, which facilitates the rotation of the welded pipe body 2 by the fixed wheel 3291. Example

[0037] Please see Figure 1-6 Furthermore, based on Embodiment 1, the rust removal mechanism 4 further includes a second hydraulic cylinder 41, which is fixedly connected to the left side of the processing table 1. A movable seat 42 is fixedly connected to the right side of the second hydraulic cylinder 41. The movable seat 42 is slidably connected inside the processing table 1. A movable frame 43 is fixedly connected to the top of the movable seat 42. A third hydraulic cylinder 44 is fixedly connected to the top of the movable frame 43. A mounting plate 46 is fixedly connected to the bottom of the third hydraulic cylinder 44. A third servo motor 45 is fixedly connected to the top of the mounting plate 46. A rotating shaft 47 is fixedly connected to the bottom of the third servo motor 45. A grinding disc 48 is fixedly connected to the bottom of the rotating shaft 47. The grinding disc 48 is located around the welded pipe body 2.

[0038] Mounting plate 46 is slidably connected to movable frame 43, rotating shaft 47 is rotatably connected to the inside of mounting plate 46, and the bottom of grinding disc 48 is in contact with the outer periphery of welded pipe body 2, so as to facilitate rust removal work on welded pipe body 2 by grinding disc 48.

[0039] In actual operation, when this device is used and rust removal is required on the surface of the welded pipe body 2, first position the welded pipe body 2 inside the first fixing frame 315, and move its right end to near the fixing wheel 3291. Based on the size of the welded pipe body 2, manually adjust the position of the fixing column 322 within the support frame 321, and finely adjust the vertical position of the rectangular frame 327 to ensure that the fixing wheel 3291 is in the inner middle position when fixing the welded pipe body 2. After adjustment, fix the fixing column 322 using the limiting pin 323. Furthermore, the limiting pin 323 passes through the inside of the support frame 321. After the fixing is completed, the fixing wheel 3291 can be positioned in the middle of the rectangular frame 327 under the action of the second bidirectional threaded rod 328. The first servo motor 311 drives the first bidirectional threaded rod 313 to rotate, so that the two side moving frames 314 drive the first fixing frame 315 and the second fixing frame 3191 to move synchronously towards or in opposite directions. Adjust the distance between the diameters of the two sets of first fixing frames 315 to ensure the stability of the welded pipe body 2, and at the same time make the welded pipe body 2 slide connected to the periphery of the fixing wheel 3291.

[0040] Simultaneously, the first hydraulic cylinder 318 drives the second fixed frame 3191 to move, causing the second fixed frame 3191 and the second rotating wheel 3192 to move to the periphery of the welded pipe body 2. Through the cooperation of the first rotating wheel 316 and the second rotating wheel 3192, the welded pipe body 2 of different diameters can be adaptively clamped and fixed. The top of the first fixed frame 315 and the second fixed frame 3191 are designed in a V shape, which increases the contact area with the welded pipe.

[0041] Once fixed, the knob 3292 can be rotated to move the second bidirectional threaded rod 328, which in turn moves the connecting frame 329 and the fixing wheel 3291, so that the outer periphery of the fixing wheel 3291 contacts the inner side of the welded pipe body 2, thus fixing it.

[0042] The second hydraulic cylinder 41 can drive the movable seat 42 to move laterally within the processing table 1, and the third hydraulic cylinder 44 can drive the mounting plate 46 to move up and down. Combined with the third servo motor 45 driving the rotating shaft 47 to drive the grinding disc 48 to rotate at high speed, the grinding disc 48 can be flexibly adjusted in the horizontal and vertical directions, which can adapt to welded pipes of different lengths and diameters, and perform comprehensive rust removal on the surface of the welded pipe body 2, effectively improving the rust removal efficiency.

[0043] During rust removal, the second servo motor 325 drives the rotating rod 326 and the rectangular frame 327 to rotate, which causes the fixed wheel 3291 to drive the welded pipe body 2 to rotate inside the first fixed frame 315 and the second fixed frame 3191, thus performing comprehensive rust removal. When the grinding disc 48 moves to the left or right position of the first fixed frame 315 for rust removal, the first hydraulic cylinder 318 can drive the second fixed frame 3191 to move upward according to its position, temporarily releasing the fixing of the welded pipe body 2 to avoid affecting the left and right movement of the grinding disc 48. After rust removal is completed, it moves downward again to fix the plate.

[0044] When performing rust removal work, workers can place the waste collection box at the bottom of the processing table 1, and the waste generated during rust removal can be collected in the collection box through the processing table 1.

[0045] In use, the first servo motor 311, the second servo motor 325, the third servo motor 45, the two sets of first hydraulic cylinders 318, second hydraulic cylinders 41 and third hydraulic cylinders 44 can be connected to the same PLC control system to ensure coordinated operation between the equipment and to realize the sequential and simultaneous operation of the equipment. The PLC control system is existing technology, and those skilled in the art are well aware of the specific operation steps of this system, so it will not be described in detail in this case.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A welded pipe outer wall rust removal device for welded pipe processing, comprising a processing table (1), characterized in that: The processing table (1) is provided with a fixing mechanism (3) on the top, a welded pipe body (2) is provided inside the fixing mechanism (3), a rust removal mechanism (4) is provided on the top of the processing table (1), a slide rod (5) is fixedly connected inside the processing table (1), and a base (6) is fixedly connected to the bottom of the processing table (1). The fixing mechanism (3) includes a fixing component (31) and a rotating component (32). The fixing component (31) is located on the top of the processing table (1), and the rotating component (32) is located on the right side of the processing table (1). The fixing component (31) includes a fixing frame (312), which is fixedly connected to the bottom of the processing table (1). A first servo motor (311) is fixedly connected to the right side of the fixing frame (312), and a first bidirectional threaded rod (313) is fixedly connected to the left side of the first servo motor (311). The first bidirectional threaded rod (313) is rotatably connected to the left side of the fixing frame (312). A movable frame (314) is threadedly connected to the periphery of the first bidirectional threaded rod (313). A first fixing frame (315) is fixedly connected to the rear side of the movable frame (314). The first fixing frame (315) is slidably connected to the periphery of the slide rod (5). A first rotating wheel (316) is rotatably connected to the inner side of the first fixing frame (315). The first fixing frame (315) is located on the periphery of the welded pipe body (2). The top of the movable frame (314) is fixedly connected to a support frame (317), the top of the support frame (317) is fixedly connected to a first hydraulic cylinder (318), the bottom of the first hydraulic cylinder (318) is fixedly connected to a second fixed frame (3191), the second fixed frame (3191) is located on the periphery of the welded pipe body (2), the inner side of the second fixed frame (3191) is rotatably connected to a second rotating wheel (3192), the top of the second fixed frame (3191) is fixedly connected to a limit shaft (319), and the limit shaft (319) is slidably connected to the inside of the support frame (317).

2. A device for removing rust from the outer wall of a welded pipe for welded pipe processing according to claim 1, characterized in that: The outer periphery of the first fixed frame (315), the first rotating wheel (316), the second fixed frame (3191) and the second rotating wheel (3192) respectively contact the outer periphery of the welded pipe body (2). The second fixed frame (3191) is slidably connected inside the first fixed frame (315), and the top of the first fixed frame (315) and the second fixed frame (3191) are both V-shaped.

3. A device for removing rust from the outer wall of a welded pipe for welded pipe processing according to claim 1, characterized in that: The movable frame (314), the first fixed frame (315), the first rotating wheel (316), the support frame (317), the first hydraulic cylinder (318), the second fixed frame (3191), the second rotating wheel (3192) and the limiting shaft (319) are provided in two sets and are symmetrically distributed on the left and right sides of the top of the processing table (1).

4. A device for removing rust from the outer wall of a welded pipe for welded pipe processing according to claim 1, characterized in that: The rotating assembly (32) includes a support frame (321), which is fixedly connected to the right side of the processing table (1). A fixed column (322) is slidably connected inside the support frame (321). A limit pin (323) is threaded inside the fixed column (322). A fixed plate (324) is fixedly connected to the top of the fixed column (322). A second servo motor (325) is fixedly connected to the right side of the fixed plate (324). The second servo motor (325) is fixedly connected to a rotating rod (326) on the left side. A rectangular frame (327) is fixedly connected to the left side of the rotating rod (326). A second bidirectional threaded rod (328) is rotatably connected inside the rectangular frame (327). A knob (3292) is fixedly connected to the top of the second bidirectional threaded rod (328). A connecting frame (329) is threadedly connected to the outer periphery of the second bidirectional threaded rod (328). A fixed wheel (3291) is fixedly connected to the inner side of the connecting frame (329). The fixed wheel (3291) is located inside the welded pipe body (2).

5. A pipe welding outer wall rust removing device for pipe welding processing according to claim 4, characterized in that: The rotating rod (326) is rotatably connected to the inside of the fixed plate (324), the outer periphery of the fixed wheel (3291) is in contact with the inner side of the welded pipe body (2), and the outer periphery of the fixed wheel (3291) is provided with an anti-slip pad.

6. A pipe welding outer wall rust removing device for pipe welding processing according to claim 1, characterized in that: The rust removal mechanism (4) includes a second hydraulic cylinder (41), which is fixedly connected to the left side of the processing table (1). A movable seat (42) is fixedly connected to the right side of the second hydraulic cylinder (41). The movable seat (42) is slidably connected to the inside of the processing table (1). A movable frame (43) is fixedly connected to the top of the movable seat (42). A third hydraulic cylinder (44) is fixedly connected to the top of the movable frame (43). A mounting plate (46) is fixedly connected to the bottom of the third hydraulic cylinder (44). A third servo motor (45) is fixedly connected to the top of the mounting plate (46). A rotating shaft (47) is fixedly connected to the bottom of the third servo motor (45). A grinding disc (48) is fixedly connected to the bottom of the rotating shaft (47). The grinding disc (48) is located around the welded pipe body (2).

7. A pipe welding outer wall rust removing device for pipe welding processing according to claim 6, characterized in that: The mounting plate (46) is slidably connected to the movable frame (43), the rotating shaft (47) is rotatably connected to the inside of the mounting plate (46), and the bottom of the grinding disc (48) is in contact with the periphery of the welded pipe body (2).

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