Special-shaped welding tool for bent pipe
By designing a multi-axis coordinated motion irregular welding fixture, the problem of existing welding fixtures being unable to flexibly adjust the angle, height, and orientation of the bent pipe was solved, achieving stable clamping and vibration reduction of the bent pipe, and improving welding effect and efficiency.
Patent Information
- Application Number
- CN202510960727.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-11
- Publication Date
- 2025-11-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing welding fixtures cannot be flexibly adjusted according to the angle, height, and orientation of the bend, resulting in inflexible clamping and use, affecting welding effect and stability, and lacking shock absorption function, which can easily lead to pipeline damage.
A non-circular welding fixture was designed, which includes rotating, lifting, adjusting and clamping components. It achieves multi-axis coordinated motion through a motor-driven lead screw and worm gear mechanism, and combined with a damping shock absorber, it achieves flexible clamping and buffering of the bent pipe.
It enables flexible adjustment and stable clamping of the bend, improves welding results, reduces pipe vibration damage, and enhances welding efficiency and stability.
Smart Images
Figure CN120901622A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a welding tool, in particular to a special-shaped welding tool for bent pipes. BACKGROUND
[0002] Welding, also known as fusion, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. Currently, during the welding process of pipes, the pipes need to be clamped and limited. However, the existing welding tools are mostly only convenient for clamping straight pipes and cannot adjust the clamping of the clamping plate according to the inclination of the pipe surface, thus reducing the flexibility of clamping and the fit with the pipe to some extent, and not conducive to ensuring the welding effect.
[0003] The existing welding tool has some defects and deficiencies in use, and specific improvements are as follows: 1. Most of the existing welding tools only clamp the surface of the pipe and cannot adjust the clamping angle of the clamping plate according to the inclination of the pipe surface, thus reducing the flexibility of clamping and the fit with the pipe to some extent, and not conducive to ensuring the welding effect. 2. Most of the existing welding tools cannot adjust according to the height of the bent pipe and can only support and limit the same horizontal pipe, thus reducing the convenience of use. 3. Most of the existing welding tools cannot be flexibly adjusted according to the bending direction of the pipe, which has great limitations in use and affects the stability of the limiting, thus reducing the flexibility of use. 4. Most of the existing welding tools do not have a damping function, thus cannot buffer the vibration generated during welding and cannot provide a buffer space when the pipe is stressed, thus easily causing the pipe to break and be damaged, thus increasing the production cost and reducing the welding efficiency.
[0004] Therefore, a special-shaped welding tool for bent pipes is proposed to solve the above problems. SUMMARY
[0005] The present application aims to provide a special-shaped welding tool for bent pipes to solve the problem of the existing welding tool being single in function and not being able to flexibly adjust according to the angle, height and orientation of the bent pipe, thus reducing the flexibility of clamping the bent pipe and not being able to ensure the welding effect.
[0006] In order to achieve the above object, the application provides the following technical scheme: a special-shaped welding tool for bent pipes, comprising an operating table, a plurality of mounting holes are formed in the surface of the operating table, a top lap mounting plate is arranged on the operating table, a plug-in column is arranged in the mounting plate, the plug-in column is plugged into the mounting hole, a tool mechanism is fixedly installed on the surface of the mounting plate, the tool mechanism comprises a rotating assembly, a lifting assembly is fixedly connected to the top of the rotating assembly, an adjusting assembly is fixedly installed on the top of the lifting assembly, a moving assembly is fixedly installed on the top of the adjusting assembly, a movable assembly is fixedly installed on the top of the moving assembly, a clamping assembly is fixedly installed on the top of the movable assembly.
[0007] As a preferred technical scheme of the application, the rotating assembly comprises a bottom plate, a first recess is formed in the inside of the bottom plate, a second damping bearing is fixedly connected to the bottom of the inner wall of the first recess, a second rotating shaft is rotatably connected in the second damping bearing, a worm wheel is fixedly installed on the surface of the second rotating shaft, a third damping bearing is fixedly connected to the surface of the inner wall of the first recess, a worm gear is rotatably connected in the third damping bearing, the worm gear is meshingly connected with the worm wheel, and a knob is fixedly installed on the shaft end of the worm gear.
[0008] As a preferred technical scheme of the application, the lifting assembly comprises a shell, the shell is fixedly connected to the top end of the second rotating shaft, a cabin is formed in the shell, a third bearing and a first motor are fixedly connected to the bottom of the inner wall of the cabin, a third rotating shaft is rotatably connected in the third bearing, a driven gear is fixedly connected to the surface of the third rotating shaft, a driving gear is fixedly connected to the output shaft of the first motor, the driving gear is meshingly connected with the driven gear, a first lead screw is fixedly connected to the top end of the third rotating shaft, and a threaded barrel is threadedly connected to the surface of the first lead screw.
[0009] As a preferred technical scheme of the application, the adjusting assembly comprises a lifting plate, the lifting plate is fixedly connected to the top of the threaded barrel, a second recess is formed in the top of the lifting plate, a second motor is fixedly installed on the side surface of the inner wall of the second recess, a second lead screw is fixedly connected to the output shaft of the second motor, an adjusting frame is threadedly connected to the surface of the second lead screw, a movable rod is movably connected to the inner side of the adjusting frame through a pin shaft, and a connecting frame is movably connected to the top end of the movable rod through a pin shaft.
[0010] As a preferred technical scheme of the present application, the moving assembly comprises a support plate, the bottom of the support plate is movably connected with one side of the lifting plate through a pin shaft, the support plate is fixedly connected with the top of the connecting frame, the top of the support plate is provided with a third groove, a double-shaft motor is fixedly installed in the third groove, two output shafts of the double-shaft motor are respectively fixedly connected with a third screw rod and a fourth screw rod, and the surfaces of the third screw rod and the fourth screw rod are both threadedly connected with a moving block.
[0011] As a preferred technical scheme of the present application, the moving assembly comprises a support plate, the bottom of the support plate is movably connected with one side of the lifting plate through a pin shaft, the support plate is fixedly connected with the top of the connecting frame, the top of the support plate is provided with a third groove, a double-shaft motor is fixedly installed in the third groove, two output shafts of the double-shaft motor are respectively fixedly connected with a third screw rod and a fourth screw rod, and the surfaces of the third screw rod and the fourth screw rod are both threadedly connected with a moving block.
[0012] As a preferred technical scheme of the present application, the moving assembly comprises a support plate, the bottom of the support plate is movably connected with one side of the lifting plate through a pin shaft, the support plate is fixedly connected with the top of the connecting frame, the top of the support plate is provided with a third groove, a double-shaft motor is fixedly installed in the third groove, two output shafts of the double-shaft motor are respectively fixedly connected with a third screw rod and a fourth screw rod, and the surfaces of the third screw rod and the fourth screw rod are both threadedly connected with a moving block.
[0013] As a preferred technical scheme of the present application, the top of the bottom plate is provided with a sliding rail, a pulley is rotatably connected in the sliding rail, and the pulley is fixedly installed at the bottom of the shell.
[0014] As a preferred technical scheme of the present application, the side surface of the inner wall of the second groove is provided with a first sliding groove, the side surface of the adjusting frame is slidably connected in the first sliding groove, the side surface of the inner wall of the third groove is provided with a second sliding groove, and the side surface of the moving block is slidably connected in the second sliding groove.
[0015] As a preferred technical scheme of the present application, the top of the shell is fixedly installed with a sliding rod, the surface of the sliding rod is slidably connected with a sliding cylinder, and the top of the sliding cylinder is fixedly connected with the bottom of the lifting plate.
[0016] Compared with the prior art, the present application has the following advantages: 1. This invention incorporates a second motor, which drives the third and fourth lead screws to rotate, thereby moving the adjusting frame left and right. Through the movement of the pin and movable rod, the supporting plate moves up and down via the connecting frame, achieving flexible adjustment of the angles of the moving plate and clamping plate. Simultaneously, the rotation of the first rotating shaft within the damping bearing, combined with the elasticity of the return spring, allows for fine-tuning of the position of the moving plate and clamping plate against the pipe surface, achieving a tight clamping fit against the bent pipe surface. This solves the problem that most current welding fixtures can only limit clamping for straight pipes and cannot flexibly adjust according to the curvature of the bent pipe surface, thus reducing the fit against the bent pipe surface and compromising clamping stability, ultimately affecting the welding effect. 2. This invention features a first motor that drives the active gear and driven gear to mesh and rotate, causing the third shaft to rotate, which in turn drives the first lead screw to rotate. Simultaneously, a sliding cylinder and a threaded cylinder slide on the surface of the sliding rod, causing the threaded cylinder and the sliding cylinder to move the lifting plate up and down. This, in turn, moves the moving plate and the clamping plate up and down, achieving the goal of flexibly raising and lowering the pipe according to its height. This solves the problem that most current welding fixtures can only support and limit pipes at the same level, thus reducing the ease of use to some extent. 3. This invention sets up a knob and a worm gear. Rotating the knob drives the worm gear to mesh with the worm wheel and rotate. At the same time, through the rotation of the pulley in the slide rail, the second rotating shaft drives the housing to rotate. This achieves the purpose of flexibly adjusting the position of the moving plate and the clamping plate according to the curvature of the curve. This solves the problem that most welding fixtures are currently single-function and inconvenient to adjust, thus reducing the flexibility of use to a certain extent. 4. This invention uses a movable plate and a clamping plate to clamp and limit the support of the pipeline by moving the movable plate and the clamping plate. With the help of the damping and shock absorption performance of the damping damper, the vibration generated during the support welding process is buffered. This solves the problem that most welding fixtures do not have a buffer structure, which to some extent causes pipeline breakage and damage, and is not conducive to ensuring welding efficiency and effect. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a frontal three-dimensional structural diagram of the present invention; Figure 2 is provided in the present application Figure 1 a schematic view of the three-dimensional structure of the tooling mechanism; Figure 3 is provided in the present application Figure 2 a schematic view of the three-dimensional structure of the moving assembly; Figure 4 is provided in the present application Figure 2 a schematic view of the three-dimensional structure of the adjusting assembly; Figure 5 is provided in the present application Figure 2 a schematic view of the three-dimensional structure of the rotating assembly; Figure 6 is provided in the present application Figure 2 a schematic view of the three-dimensional structure of the enlarged view at A; Figure 7 is provided in the present application Figure 3 a schematic view of the three-dimensional structure of the enlarged view at B; Figure 8 is provided in the present application Figure 4 a schematic view of the three-dimensional structure of the enlarged view at C.
[0019] The signs in the drawings are as follows: 1, operation table; 2, mounting hole; 3, tooling mechanism; 31, rotating assembly; 311, bottom plate; 312, first groove; 313, third damping bearing; 314, worm; 315, second rotating shaft; 316, worm gear; 317, second damping bearing; 318, knob; 32, clamping assembly; 321, moving plate; 322, damping shock absorber; 323, clamping plate; 33, lifting assembly; 331, cabin body; 332, third bearing; 333, third rotating shaft; 334, first motor; 335, driving gear; 336, driven gear; 337, housing; 338, first lead screw; 339, threaded cylinder; 34, adjusting assembly; 341, lifting plate; 342, second groove; 343, second motor; 344, second lead screw; 345, adjusting frame; 346, movable rod; 347, connecting frame; 35, moving assembly; 351, support plate; 352, third groove; 353, third lead screw; 354, moving block; 355, double-shaft motor; 356, fourth lead screw; 36, movable assembly; 361, first damping bearing; 362, first rotating shaft; 363, return spring; 4, mounting plate; 5, plug-in column; 6, slide rail; 7, pulley; 8, slide rod; 9, slide cylinder; 10, first slide groove; 11, second slide groove. DETAILED DESCRIPTION
[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.
[0021] Please refer to Figures 1-8 The present application provides a special-shaped welding tool for pipe bending. The operation table 1 is provided with a plurality of mounting holes 2 on the surface, and the top of the operation table 1 is overlapped with a mounting plate 4. The mounting plate 4 is provided with a plug-in column 5, which is plugged into the mounting hole 2 through the mounting plate 4, so as to facilitate the installation of a proper number of tool mechanisms 3 according to the use needs. The plug-in column 5 is plugged into the mounting hole 2, and the mounting plate 4 is fixedly provided with the tool mechanism 3 on the surface. The tool mechanism 3 comprises a rotating assembly 31, the top of which is fixedly connected with a lifting assembly 33. The top of the lifting assembly 33 is fixedly provided with an adjusting assembly 34, and the top of the adjusting assembly 34 is fixedly provided with a moving assembly 35. The top of the moving assembly 35 is fixedly provided with a movable assembly 36, and the top of the movable assembly 36 is fixedly provided with a clamping assembly 32.
[0022] The rotating assembly 31 comprises a bottom plate 311, and the inside of the bottom plate 311 is provided with a first recess 312. The bottom of the inner wall of the first recess 312 is fixedly connected with a second damping bearing 317, and the second damping bearing 317 is rotatably connected with a second rotating shaft 315. The surface of the second rotating shaft 315 is fixedly provided with a worm wheel 316, and the surface of the inner wall of the first recess 312 is fixedly connected with a third damping bearing 313. The third damping bearing 313 is rotatably connected with a worm gear 314, which is meshed with the worm wheel 316. The shaft end of the worm gear 314 penetrates through the third damping bearing 313 and is fixedly provided with a knob 318. Under the action of the knob 318 driving the worm gear 314 to rotate, the second rotating shaft 315 is driven to rotate through the turbine, so as to realize the effect of driving the shell 337 to rotate, and achieve the purpose of flexible adjustment according to the bending direction of the pipe.
[0023] The lifting assembly 33 comprises a shell 337 fixedly connected to the top end of the second rotating shaft 315, a cabin 331 is formed in the shell 337, a third bearing 332 and a first motor 334 are fixedly connected to the bottom of the inner wall of the cabin 331, a third rotating shaft 333 is rotatably connected into the third bearing 332, a driven gear 336 is fixedly connected to the surface of the third rotating shaft 333, a driving gear 335 is fixedly connected to the output shaft of the first motor 334 and is in meshing connection with the driven gear 336, a first lead screw 338 is fixedly connected to the top end of the third rotating shaft 333, and a threaded barrel 339 is threadedly connected to the surface of the first lead screw 338. Under the action of the first motor 334 driving the driving gear 335 to rotate, the driven gear 336 drives the third rotating shaft 333 to rotate through the meshing connection with the driven gear 336, so that the first lead screw 338 rotates, the threaded barrel 339 moves up and down, the effect of driving the lifting plate 341 to move up and down is realized, and the purpose of adjusting according to the different horizontal positions of the bent pipe is achieved.
[0024] The adjusting assembly 34 comprises a lifting plate 341 fixedly connected to the top of the threaded barrel 339, a second recess 342 is formed in the top of the lifting plate 341, a second motor 343 is fixedly installed on the side surface of the inner wall of the second recess 342, a second lead screw 344 is fixedly connected to the output shaft of the second motor 343, an adjusting frame 345 is threadedly connected to the surface of the second lead screw 344, a movable rod 346 is movably connected to the inner side of the adjusting frame 345 through a pin shaft, a connecting frame 347 is movably connected to the top end of the movable rod 346 through a pin shaft. Under the action of the second motor 343 driving the second lead screw 344 to rotate, the adjusting frame 345 moves, the connecting frame 347 drives the support plate 351 to move up and down through the movable action of the movable rod 346 and the pin shaft, the effect of flexible adjustment according to the bending angle of the bent pipe is realized.
[0025] The moving assembly 35 comprises a support plate 351 movably connected to one side of the lifting plate 341 through a pin shaft, the support plate 351 is fixedly connected to the top of the connecting frame 347, a third recess 352 is formed in the top of the support plate 351, a double-shaft motor 355 is fixedly installed in the third recess 352, a third lead screw 353 and a fourth lead screw 356 are fixedly connected to the two output shafts of the double-shaft motor 355, respectively, and moving blocks 354 are threadedly connected to the surfaces of the third lead screw 353 and the fourth lead screw 356. Under the action of the double-shaft motor 355 driving the third lead screw 353 and the fourth lead screw 356 to rotate, the moving blocks 354 drive the moving assembly 36 to move, and in turn drive the two groups of clamping assemblies 32 to move, the effect of adjusting according to the thickness of the bent pipe is realized, and the purpose of clamping and limiting the pipeline is achieved.
[0026] The active assembly 36 comprises a first damping bearing 361 fixedly connected to the top of the moving block 354, a first rotating shaft 362 rotatably connected in the first damping bearing 361, a return spring 363 sleeved on the surface of the first rotating shaft 362, and two ends of the return spring 363 fixedly connected to the first damping bearing 361 and the surface of the first rotating shaft 362 respectively. By the rotation of the first rotating shaft 362 in the first damping bearing 361, the pressure is formed by the constant contact with the surface of the bent pipe during the movement of the clamping plate 323 for clamping the bent pipe, the angle of the moving plate 321 and the clamping plate 323 is finely adjusted under the elastic cooperation of the return spring 363, the adhesion with the surface of the bent pipe is increased, and the clamping and limiting effect is improved.
[0027] The clamping assembly 32 comprises two moving plates 321 fixedly connected to the top end of the first rotating shaft 362, and a damping shock absorber 322 installed on the inner side of each moving plate 321 and fixedly connected with a clamping plate 323 at one end. Under the movement of the two clamping plates 323, the pipe is clamped and limited, the vibration generated during welding is buffered by the damping shock absorber 322, the buffering space is provided, and the pipe damage caused by excessive clamping of the pipe is avoided.
[0028] The top of the bottom plate 311 is provided with a sliding rail 6, and a pulley 7 is rotatably connected in the sliding rail 6 and fixedly installed at the bottom of the shell 337, so that the rotation of the shell 337 is more smooth and stable.
[0029] A first sliding groove 10 is formed in the side surface of the inner wall of the second recess 342, and the side surface of the adjusting frame 345 is slidably connected in the first sliding groove 10, so that the movement of the adjusting frame 345 is more stable. A second sliding groove 11 is formed in the side surface of the inner wall of the third recess 352, and the side surface of the moving block 354 is slidably connected in the second sliding groove 11, so that the movement of the moving block 354 is more stable.
[0030] A sliding rod 8 is fixedly installed at the top of the shell 337, a sliding cylinder 9 is slidably connected to the surface of the sliding rod 8, and the top of the sliding cylinder 9 is fixedly connected to the bottom of the lifting plate 341. By the sliding action of the sliding cylinder 9 on the surface of the sliding rod 8, the lifting plate 341 is driven to move more stably in cooperation with the threaded cylinder 339.
[0031] The specific operation mode of the present application is as follows: When the bent pipe needs to be clamped and limited for welding, a proper number of tooling mechanisms 3 can be taken according to the shape of the bent pipe, and then the tooling mechanisms 3 are preliminarily installed by inserting the insertion column 5 into the mounting hole 2 in the appropriate position of the operation table 1 through the mounting plate 4. Then, first, the bent pipe can be placed on the support plate 351 in the appropriate position according to the bending position, and then, when the bending angle of the bent pipe at one position is not horizontal, the first motor 334 can be controlled to work first, the driving gear 335 and the driven gear 336 are engaged to rotate, the first lead screw 338 is rotated, the threaded barrel 339 drives the lifting plate 341 to move up and down, and the height of the moving plate 321 and the clamping plate 323 is adjusted. When the bending angle of the bent pipe at one position is not horizontal, the second motor 343 can be controlled to work, the second lead screw 344 is rotated, the adjusting frame 345 moves left and right, and the support plate 351 moves up and down through the cooperation of the pin shaft and the movable rod 346, and the angle of the moving plate 321 and the clamping plate 323 is adjusted. At the same time, when the bent pipe at one position extends inward or outward, the knob 318 can be rotated, the worm 314 and the worm gear 316 are rotated, the second rotating shaft 315 drives the shell 337 to rotate, and the orientation is fine-tuned. After adjusting the height, angle and orientation of each position of the bent pipe, the double-shaft motor 355 can be controlled to work, the third lead screw 353 and the fourth lead screw 356 are rotated, and the two moving blocks 354 are close to each other through the opposite screw thread directions on the surfaces of the third lead screw 353 and the fourth lead screw 356, so that the moving plate 321 and the clamping plate 323 move towards the surface of the pipe, and in the moving process, when the surface of the pipe is in an inclined state, the moving plate 321 and the clamping plate 323 are blocked after contacting the surface of the pipe through the rotation of the first rotating shaft 362 in the first damping bearing 361 and the elasticity of the return spring 363, so that the moving plate 321 and the clamping plate 323 are slightly rotated and adjusted to fit the surface of the pipe, and the pipe is more stably clamped and supported, and at the same time, the damping shock absorber 322 buffers the vibration generated in the welding process, to avoid the situation that the pipe is damaged due to excessive clamping.
[0032] In the description of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0033] In the present application, unless otherwise explicitly specified and limited, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited, and for those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.
[0034] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous changes, modifications, substitutions and variations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.
Claims
1. A special-shaped welding tool for bending pipe, comprising an operating table (1), characterized in that: The surface of the operating platform (1) is provided with a plurality of mounting holes (2), the top of the operating platform (1) is overlapped with a mounting plate (4), the mounting plate (4) is provided with a plug-in column (5), the plug-in column (5) is plugged into the mounting hole (2), the surface of the mounting plate (4) is fixedly provided with a tool mechanism (3), the tool mechanism (3) comprises a rotating assembly (31), the top of the rotating assembly (31) is fixedly connected with a lifting assembly (33), the top of the lifting assembly (33) is fixedly provided with an adjusting assembly (34), the top of the adjusting assembly (34) is fixedly provided with a moving assembly (35), the top of the moving assembly (35) is fixedly provided with a movable assembly (36), the top of the movable assembly (36) is fixedly provided with a clamping assembly (32).
2. The profiled welding tool for bending a pipe according to claim 1, characterized in that: The rotating assembly (31) comprises a bottom plate (311), the inside of the bottom plate (311) is provided with a first groove (312), the bottom of the inner wall of the first groove (312) is fixedly connected with a second damping bearing (317), the second damping bearing (317) is rotatably connected with a second rotating shaft (315) in the inside, the surface of the second rotating shaft (315) is fixedly provided with a worm wheel (316), the surface of the inner wall of the first groove (312) is fixedly connected with a third damping bearing (313), the third damping bearing (313) is rotatably connected with a worm gear (314) in the inside, the worm gear (314) is meshed with the worm wheel (316), the shaft end of the worm gear (314) penetrates through the third damping bearing (313) and is fixedly provided with a knob (318).
3. The profiled welding tool for bending a pipe according to claim 2, characterized in that: The lifting assembly (33) comprises a shell (337), the shell (337) is fixedly connected with the top end of the second rotating shaft (315), the shell (337) is provided with a cabin (331) in the inside, the bottom of the inner wall of the cabin (331) is fixedly connected with a third bearing (332) and a first motor (334), the third bearing (332) is rotatably connected with a third rotating shaft (333) in the inside, the surface of the third rotating shaft (333) is fixedly connected with a driven gear (336), the output shaft of the first motor (334) is fixedly connected with a driving gear (335), the driving gear (335) is meshed with the driven gear (336), the top end of the third rotating shaft (333) is fixedly connected with a first lead screw (338), the surface of the first lead screw (338) is screw-connected with a threaded barrel (339).
4. The profiled welding tool for bending a pipe according to claim 3, characterized in that: The adjusting assembly (34) comprises a lifting plate (341) fixedly connected at the top of a threaded cylinder (339), a second groove (342) is formed at the top of the lifting plate (341), a second motor (343) is fixedly installed on the side surface of the inner wall of the second groove (342), a second lead screw (344) is fixedly connected to the output shaft of the second motor (343), an adjusting frame (345) is threadedly connected to the surface of the second lead screw (344), and a movable rod (346) is movably connected to the inner side of the adjusting frame (345) through a pin shaft.
5. The profiled welding tool for bending a pipe according to claim 4, characterized in that: The moving assembly (35) comprises a supporting plate (351) movably connected to one side of the lifting plate (341) through a pin shaft, the supporting plate (351) is fixedly connected to the top of the connecting frame (347), a third groove (352) is formed at the top of the supporting plate (351), a double-shaft motor (355) is fixedly installed in the third groove (352), a third lead screw (353) and a fourth lead screw (356) are fixedly connected to the two output shafts of the double-shaft motor (355) respectively, and moving blocks (354) are threadedly connected to the surfaces of the third lead screw (353) and the fourth lead screw (356).
6. The profiled welding tool for bending a pipe according to claim 5, wherein: The movable assembly (36) comprises a first damping bearing (361) fixedly connected to the top of the moving block (354), a first rotating shaft (362) is rotatably connected in the first damping bearing (361), a return spring (363) is sleeved on the surface of the first rotating shaft (362), and the two ends of the return spring (363) are fixedly connected to the surface of the first rotating shaft (362) and the first damping bearing (361) respectively.
7. The profiled welding tool for bending a pipe according to claim 6, characterized in that: The clamping assembly (32) comprises two moving plates (321) fixedly connected to the top end of the first rotating shaft (362), and a damping shock absorber (322) is installed on the inner side of each moving plate (321), and a clamping plate (323) is fixedly connected to one end of the damping shock absorber (322).
8. The profiled welding tool for bending pipe according to claim 3, characterized in that: A sliding rail (6) is formed at the top of the bottom plate (311), a pulley (7) is rotatably connected in the sliding rail (6), and the pulley (7) is fixedly installed at the bottom of the shell (337).
9. The profiled welding tool for bending pipe according to claim 5, characterized in that: A first sliding groove (10) is formed in the side surface of the inner wall of the second groove (342), the side surface of the adjusting frame (345) is slidably connected in the first sliding groove (10), a second sliding groove (11) is formed in the side surface of the inner wall of the third groove (352), and the side surface of the moving block (354) is slidably connected in the second sliding groove (11).
10. The profiled welding tool for bending pipe according to claim 4, characterized in that: A sliding rod (8) is fixedly installed at the top of the shell (337), a sliding cylinder (9) is slidably connected to the surface of the sliding rod (8), and the top of the sliding cylinder (9) is fixedly connected to the bottom of the lifting plate (341).