Adjustable welded pipe vertical roll tool

Abstract

The invention belongs to the technical field of welding, and particularly relates to an adjustable welded pipe vertical roll tool which comprises a base, first sliding blocks are slidably connected to the two sides of the upper end face of the base, a roll shaft is rotationally arranged on the upper end faces of the first sliding blocks, the roll shaft is sleeved with and fixedly connected with a large vertical roll, and second sliding blocks are slidably connected to the two sides of the upper end face of the base. A rotating shaft is rotatably arranged on the upper end face of the second sliding block, the rotating shaft is sleeved and fixedly connected with a rotating frame, a first small vertical roller, a second small vertical roller, a third small vertical roller and a fourth small vertical roller are rotatably arranged on the periphery of the rotating frame, and the specifications of the first small vertical roller, the second small vertical roller, the third small vertical roller and the fourth small vertical roller are different. By means of the size-adaptive lubricating assembly, the situation that due to the fact that the friction force between the vertical roller and the surface of the welded pipe is large, scratches or indentations are left on the surface of the welded pipe through the vertical roller, an anti-corrosion layer or surface smoothness of the welded pipe is damaged, and the appearance quality and corrosion resistance of a product are affected is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, in particular to an adjustable vertical roller tooling for welding pipes. Background Art

[0002] The welded pipe vertical roller fixture is a special equipment used to control the forming and welding quality of welded pipes in welded pipe production. Its core function is to ensure the stability and accuracy of the welded pipe during the forming and welding process through precise adjustment of the vertical rollers.

[0003] Patent publication number CN104625367B discloses an adjustable vertical roller assembly for welding pipes, comprising a welding torch, a large vertical roller, a small vertical roller, a cantilever, and a tie rod. The small vertical roller comprises small vertical roller I and small vertical roller II, the cantilever comprises cantilever I, cantilever II, cantilever III, and cantilever IV, and the tie rod comprises tie rod I and tie rod II. The ends of small vertical roller I are mounted on cantilever I and cantilever II, respectively, while the ends of small vertical roller II are mounted on cantilever III and cantilever IV, respectively. The ends of tie rod I are mounted on cantilever I and cantilever III, respectively, through a screw pair, while the ends of tie rod II are mounted on cantilever II and cantilever IV, respectively. Roller shaft I is provided on cantilever I and cantilever II, while roller shaft II is provided on cantilever III and cantilever IV, and roller shaft I and roller shaft II are mounted on the pipe welding machine through a screw pair. This patent improves the mechanical properties of the weld, reduces weld cracking caused by subsequent bending or flaring, and thus reduces product scrap rate.

[0004] However, the above technical solution still has the following deficiencies in practical application:

[0005] By adjusting the spacing between the vertical rollers, the clamping force is brought close to the weld in the red-hot state, offsetting the post-weld rebound tensile stress, allowing the pipe to be stitched in the red-hot state and improving the mechanical properties of the weld. However, since the vertical rollers fit the surface of the welded pipe, in some cases, the friction between the vertical rollers and the welded pipe surface is relatively large. Excessive friction may cause the vertical rollers to leave scratches or indentations on the welded pipe surface, destroying the anti-corrosion layer or surface finish of the welded pipe, and affecting the appearance quality and corrosion resistance of the product. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art, the present invention proposes an adjustable welded pipe vertical roller fixture.

[0007] The technical solution adopted by the present invention to solve its technical problem is: an adjustable welded pipe vertical roller fixture, including a base, a slider 1 is slidably connected to both sides of the upper end surface of the base, a roller shaft is rotatably provided on the upper end surface of the slider 1, a large vertical roller is sleeved and fixedly connected on the roller shaft, a slider 2 is slidably connected to both sides of the upper end surface of the base, a rotating shaft is rotatably provided on the upper end surface of the slider 2, a rotating frame is sleeved and fixedly connected on the rotating shaft, and a small vertical roller 1, a small vertical roller 2, a small vertical roller 3, and a small vertical roller 4 are provided on the rotating frame for rotation around one circle, and the small vertical roller 1, the small vertical roller 2, the small vertical roller 3, and the small vertical roller 4 have different specifications, and size-adaptive lubrication components are also provided on both sides of the upper end of the base;

[0008] The size-adaptive lubrication assembly includes a fixed plate fixedly connected to the upper end surface of the base, a cylinder 1 is fixedly connected to one side of the upper end of the fixed plate, a groove plate is fixedly connected to the piston end of the cylinder 1, a slider 3 is slidably connected to both sides of the groove of the groove plate, a sponge roller is fixedly connected to one end of the slider 3, a limiting rod is fixedly connected to one side of the groove plate, a plurality of adjustment blocks are longitudinally equidistantly distributed and fixedly connected to the limit rod, and a nozzle is fixedly connected to one side of the adjustment block.

[0009] Preferably, one side of the slider is threadedly connected to a bidirectional threaded rod three, both ends of the bidirectional threaded rod three are rotatably set on the base, one side of the upper end surface of the base is fixedly connected to a motor five, and the output end of the motor five is fixedly connected to one end of the bidirectional threaded rod three.

[0010] Preferably, one side of the slider 2 is threadedly connected to a bidirectional threaded rod 1, both ends of the bidirectional threaded rod 1 are rotatably set on the base, one side of the upper end surface of the base is fixedly connected to a motor 3, and the output end of the motor 3 is fixedly connected to one end of the bidirectional threaded rod 1.

[0011] Preferably, one side of the second slider is fixedly connected to the second motor, and the output end of the second motor is fixedly connected to one end of the rotating shaft.

[0012] Preferably, a plurality of motors 1 are fixedly connected to the upper end surface of the rotating frame, and the output ends of the plurality of motors 1 are fixedly connected to the ends of the small vertical roller 1, the small vertical roller 2, the small vertical roller 3 and the small vertical roller 4 respectively.

[0013] Preferably, two bidirectional threaded rods are rotatably provided at both ends of the inner side of the groove plate, both sides of the two bidirectional threaded rods are threadably connected to the slider three, one end of the groove plate is fixedly connected to the motor four, and the output end of the motor four is fixedly connected to one end of the two bidirectional threaded rod two.

[0014] Preferably, one end of the nozzle is connected to a hose, one end of the hose is connected to a hard pipe, and the lower end of the hard pipe is connected to a pump body.

[0015] Preferably, the liquid inlet end of the pump body is connected to a liquid storage barrel, and the lower end of the liquid storage barrel is fixedly connected to the base.

[0016] Preferably, one end of the adjustment block is fixedly connected to a guide column, one side of the slot plate is fixedly connected to cylinder 2, the piston end of cylinder 2 is fixedly connected to an inclined slot plate, and the inclined slot plate is provided with multiple inclined slots, and the guide column is inserted into the inclined slot and slidably connected thereto.

[0017] Preferably, a liquid filling port is provided on one side of the upper end of the liquid storage barrel.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The adjustable vertical roller fixture for welded pipes described in the present invention utilizes motor five to rotate bidirectional threaded rod three to adjust the spacing between the two large vertical rollers according to the diameter of the welded pipe, utilizes motor three to rotate bidirectional threaded rod one to adjust the distance between the two rotating frames, and similarly utilizes motor two to rotate the rotating shaft to make any one of small vertical roller one, small vertical roller two, small vertical roller three, and small vertical roller four fit the welded pipe according to the pipe diameter, so that the clamping force approaches the weld in the red-hot state, offsetting the post-weld rebound tensile stress, allowing the pipe to be stitched in the red-hot state, and improving the mechanical properties of the weld.

[0020] 2. The adjustable weld pipe vertical roller fixture of the present invention utilizes a size-adaptive lubrication assembly to adjust the size of the sponge roller according to the size of the small vertical roller to be used, so that the sponge roller and the small vertical roller are of the same size. Based on the current length of the sponge roller, multiple adjustment blocks are simultaneously slid on a limit rod, with adjacent adjustment blocks equidistantly adjusted. This allows multiple nozzles to be evenly aligned with the sponge roller surface according to the length of the sponge roller. Lubricating oil is sprayed from the nozzles onto the sponge roller surface through rigid and flexible pipes, thereby soaking the sponge roller with the lubricating oil. The sponge roller is then moved closer to the small vertical roller. Due to its elasticity, the sponge roller can adapt to the changes in the shape of the small vertical roller, thereby evenly coating the surface of the small vertical roller with lubricating oil. The turret is then driven to rotate, bringing the lubricated small vertical roller into contact with the weld pipe. At this time, the friction between the small vertical roller and the welded pipe is reduced, thereby avoiding the situation where the vertical roller leaves scratches or indentations on the welded pipe surface due to the large friction between the vertical roller and the welded pipe surface, destroying the anti-corrosion layer or surface finish of the welded pipe, and affecting the appearance quality and corrosion resistance of the product; and, since the length of the sponge roller can correspond to the length of any one of small vertical roller one, small vertical roller two, small vertical roller three, and small vertical roller four, and the positions of multiple nozzles can be adjusted according to the length of the sponge roller, so that the nozzles are evenly distributed on one side of the sponge roller, so that the surface of the sponge roller is evenly coated with lubricating oil, the lubricating oil can be evenly coated on the surfaces of small vertical roller one, small vertical roller two, small vertical roller three, and small vertical roller four, further improving the uniformity of lubrication and improving the lubrication effect.

[0021] 3. The adjustable welded pipe vertical roller fixture described in the present invention can regularly add lubricating oil to the liquid storage barrel through the liquid injection port to ensure continuous and stable lubrication work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the rotating frame;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure at the fixed plate;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure at the slot plate;

[0027] Figure 5 yes Figure 4 A partial enlarged view of the middle part;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure of the large vertical roller;

[0029] Figure 7 This is a schematic diagram of the three-dimensional structure at the chute plate;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the sponge roller.

[0031] In the figure: 1. Base; 2. Roller; 3. Large vertical roller; 4. Slider 1; 5. Liquid storage barrel; 6. Cylinder 1; 7. Rotating frame; 8. Motor 1; 9. Rotating shaft; 10. Slider 2; 11. Motor 2; 12. Bidirectional threaded rod 1; 13. Motor 3; 14. Small vertical roller 1; 15. Small vertical roller 2; 16. Small vertical roller 3; 17. Small vertical roller 4; 18. Fixed plate; 19. Slot plate; 20. Motor 4; 21. Bidirectional threaded rod 2; 22. Slider 3; 23. Sponge roller; 24. Pump body; 25. Hard pipe; 26. Hose; 27. Spray nozzle; 28. Limit rod; 29. Cylinder 2; 30. Inclined slot plate; 31. Adjustment block; 32. Guide column; 33. Bidirectional threaded rod 3; 34. Motor 5. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Please refer to Figures 1-8 The present invention provides a technical solution: an adjustable welded pipe vertical roller fixture, comprising a base 1, with sliders 1 4 slidably connected to both sides of the upper end surface of the base 1, a roller shaft 2 rotatably provided on the upper end surface of the slider 1 4, a large vertical roller 3 sleeved and fixedly connected to the roller shaft 2, sliders 2 slidably connected to both sides of the upper end surface of the base 1, a rotating shaft 9 rotatably provided on the upper end surface of the slider 2 10, a rotating frame 7 sleeved and fixedly connected to the rotating shaft 9, a small vertical roller 14, a small vertical roller 2 15, a small vertical roller 3 16, and a small vertical roller 4 17 are provided on the rotating frame 7 for rotation around one circle, the small vertical roller 14, the small vertical roller 2 15, the small vertical roller 3 16, and the small vertical roller 4 17 having different specifications, and size-adaptive lubrication components are also provided on both sides of the upper end of the base 1;

[0034] The size-adaptive lubrication assembly includes a fixed plate 18 fixedly connected to the upper end surface of the base 1, one side of the upper end of the fixed plate 18 is fixedly connected to a cylinder 6, the piston end of the cylinder 6 is fixedly connected to a groove plate 19, both sides of the groove of the groove plate 19 are slidably connected to sliders 3 22, one end of the slider 3 22 is fixedly connected to a sponge roller 23, one side of the groove plate 19 is fixedly connected to a limit rod 28, a plurality of adjustment blocks 31 are longitudinally equidistantly distributed and fixedly connected to the limit rod 28, and a nozzle 27 is fixedly connected to one side of the adjustment block 31.

[0035] In this embodiment, Figure 1 、 Figure 2 、 Figure 6 As shown, one side of the slider 1 4 is threadedly connected to a bidirectional threaded rod 3 33, both ends of the bidirectional threaded rod 3 33 are rotatably set on the base 1, and one side of the upper end surface of the base 1 is fixedly connected to a motor 5 34, and the output end of the motor 5 34 is fixedly connected to one end of the bidirectional threaded rod 3 33.

[0036] One side of the slider 2 10 is threadedly connected to a bidirectional threaded rod 12, and both ends of the bidirectional threaded rod 12 are rotatably set on the base 1. One side of the upper end surface of the base 1 is fixedly connected to a motor 3 13, and the output end of the motor 3 13 is fixedly connected to one end of the bidirectional threaded rod 12.

[0037] One side of the second slider 10 is fixedly connected to the second motor 11 , and the output end of the second motor 11 is fixedly connected to one end of the rotating shaft 9 .

[0038] Specifically, according to the diameter of the welded pipe, the motor five 34 is used to drive the two-way threaded rod three 33 to rotate and adjust the distance between the two large vertical rollers 3. The motor three 13 is used to drive the two-way threaded rod one 12 to rotate and adjust the distance between the two rotating frames 7. Similarly, the motor two 11 is used to drive the rotating shaft 9 to rotate. According to the pipe diameter, any one of the small vertical roller one 14, the small vertical roller two 15, the small vertical roller three 16, and the small vertical roller four 17 is made to fit the welded pipe, so that the clamping force is close to the weld in the red-melt state, offsetting the post-weld rebound tensile stress, so that the pipe can be sutured in the red-melt state, and improving the mechanical properties of the weld.

[0039] In this embodiment, Figure 3-Figure 5 、 Figure 7 、 Figure 8 As shown, the upper end surface of the rotating frame 7 is fixedly connected to multiple motors 8, and the output ends of the multiple motors 8 are fixedly connected to the ends of small vertical roller 14, small vertical roller 2 15, small vertical roller 3 16, and small vertical roller 4 17 respectively.

[0040] Two bidirectional threaded rods 21 are rotatably provided at both ends of the inner side of the slot plate 19. Both sides of the bidirectional threaded rod 21 are threadedly connected to the slider 3 22. One end of the slot plate 19 is fixedly connected to the motor 4 20. The output end of the motor 4 20 is fixedly connected to one end of the bidirectional threaded rod 21.

[0041] One end of the nozzle 27 is connected to a hose 26 , one end of the hose 26 is connected to a hard pipe 25 , and the lower end of the hard pipe 25 is connected to the pump body 24 .

[0042] The liquid inlet end of the pump body 24 is connected to the liquid storage barrel 5 , and the lower end of the liquid storage barrel 5 is fixedly connected to the base 1 .

[0043] One end of the adjustment block 31 is fixedly connected to a guide post 32, one side of the slot plate 19 is fixedly connected to the cylinder 29, and the piston end of the cylinder 29 is fixedly connected to the inclined slot plate 30. The inclined slot plate 30 is provided with multiple inclined slots, and the guide post 32 is inserted into the inclined slots and slidably connected thereto.

[0044] Specifically, in the prior art, by adjusting the spacing between the vertical rollers, the clamping force is brought close to the weld in the red-hot state, thereby offsetting the post-weld rebound tensile stress, allowing the pipe to be stitched in the red-hot state and improving the mechanical properties of the weld. However, since the vertical rollers are in contact with the surface of the welded pipe, in some cases, the friction between the vertical rollers and the surface of the welded pipe is relatively large. Excessive friction may cause the vertical rollers to leave scratches or indentations on the surface of the welded pipe, thereby damaging the anti-corrosion layer or surface finish of the welded pipe and affecting the appearance quality and corrosion resistance of the product.

[0045] Therefore, in order to solve the above problems, when this embodiment is used, since the specifications of the small vertical roller 14, the small vertical roller 2 15, the small vertical roller 3 16, and the small vertical roller 4 17 are different, the small vertical roller used as needed drives the rotating frame 7 to rotate so that the corresponding small vertical roller is aligned with the sponge roller 23. According to the length of the small vertical roller, the motor 4 20 drives the bidirectional threaded rod 21 to rotate so that the two sliders 3 22 are moved closer to or away from each other, thereby compressing or stretching the sponge roller 23 so that the sponge roller 23 meets the length of the small vertical roller.

[0046] Then, according to the length of the sponge roller 23 at this time, the cylinder 2 29 is used to drive the inclined groove plate 30 to move, and the multiple inclined grooves on the inclined groove plate 30 drive the guide column 32 to move, so that the multiple adjustment blocks 31 slide on the limit rod 28 at the same time, and the adjacent two adjustment blocks 31 change at equal distances, so that the multiple nozzles 27 can be evenly aligned with the surface of the sponge roller 23 according to the length of the sponge roller 23.

[0047] Pump 24 is then activated, drawing the lubricating oil from reservoir 5. The oil then flows through rigid tube 25 and flexible tube 26, and is sprayed from nozzle 27 onto the surface of sponge roller 23, soaking it with the lubricating oil. Cylinder 1 (6) then drives sponge roller 23 toward the small vertical roller. Due to its elasticity, sponge roller 23 adapts to the shape of the small vertical roller, ensuring a uniform coating of lubricating oil on the surface of the small vertical roller. Turret 7 is then driven to rotate, bringing the lubricated small vertical roller into contact with the welded pipe. At this time, the friction between the small vertical roller and the welded pipe is reduced, thereby avoiding the situation where the vertical roller leaves scratches or indentations on the welded pipe surface due to the large friction between the vertical roller and the welded pipe surface, destroying the anti-corrosion layer or surface finish of the welded pipe, and affecting the appearance quality and corrosion resistance of the product; and since the length of the sponge roller 23 can correspond to the length of any one of the small vertical roller 14, the small vertical roller 2, the small vertical roller 3, and the small vertical roller 4, 17, and the positions of the multiple nozzles 27 can be adjusted according to the length of the sponge roller 23, so that the nozzles 27 are evenly distributed on one side of the sponge roller 23, so that the surface of the sponge roller 23 is evenly coated with lubricating oil, the lubricating oil can be evenly coated on the surfaces of the small vertical roller 14, the small vertical roller 2, the small vertical roller 3, and the small vertical roller 4, 17, further improving the uniformity of lubrication and improving the lubrication effect.

[0048] In this embodiment, Figure 1 As shown, a liquid filling port is provided on one side of the upper end of the liquid storage barrel 5.

[0049] Specifically, lubricating oil can be regularly added to the liquid storage barrel 5 through the liquid injection port to ensure continuous and stable lubrication work.

[0050] Working principle: According to the diameter of the welded pipe, motor five 34 is used to drive the two-way threaded rod three 33 to rotate, and the distance between the two large vertical rollers 3 is adjusted. Motor three 13 is used to drive the two-way threaded rod one 12 to rotate, and the distance between the two rotating frames 7 is adjusted. Similarly, motor two 11 is used to drive the rotating shaft 9 to rotate. According to the pipe diameter, any one of the small vertical roller one 14, small vertical roller two 15, small vertical roller three 16, and small vertical roller four 17 is made to fit with the welded pipe, so that the clamping force is close to the weld in the red-melt state, offsetting the rebound tensile stress after welding, so that the pipe can be sutured in the red-melt state, and improving the mechanical properties of the weld. Since small vertical roller 14, small vertical roller 2 15, small vertical roller 3 16, and small vertical roller 4 17 have different specifications, the required small vertical roller is used to drive the rotating frame 7 to rotate, so that the corresponding small vertical roller is aligned with the sponge roller 23. According to the length of the small vertical roller, the motor 4 20 drives the bidirectional threaded rod 21 to rotate, so that the two sliders 3 22 move closer or farther from each other, thereby compressing or stretching the sponge roller 23 to match the length of the small vertical roller. Then, according to the current length of the sponge roller 23, the cylinder 2 29 drives the inclined groove plate 30 to move. The multiple inclined grooves on the inclined groove plate 30 drive the guide column 32 to move, so that multiple adjustment blocks 31 slide on the limit rod 28 simultaneously, and the distance between two adjacent adjustment blocks 31 changes equidistantly. Therefore, according to the length of the sponge roller 23, multiple nozzles 27 are evenly aligned with the surface of the sponge roller 23. Pump 24 is then activated, drawing the lubricating oil from reservoir 5. The oil then flows through rigid tube 25 and flexible tube 26, and is sprayed from nozzle 27 onto the surface of sponge roller 23, soaking it with the lubricating oil. Cylinder 1 (6) then drives sponge roller 23 toward the small vertical roller. Due to its elasticity, sponge roller 23 adapts to the shape of the small vertical roller, ensuring a uniform coating of lubricating oil on the surface of the small vertical roller. Turret 7 is then driven to rotate, bringing the lubricated small vertical roller into contact with the welded pipe. At this point, the friction between the small vertical roller and the welded pipe is reduced, thereby preventing the vertical roller from leaving scratches or indentations on the welded pipe surface due to high friction between the vertical roller and the welded pipe surface, damaging the welded pipe's anti-corrosion layer or surface finish, and affecting the product's appearance quality and corrosion resistance. Furthermore, since the length of sponge roller 23 can correspond to the length of any of small vertical rollers 14, 15, 16, and 17, and the positions of multiple nozzles 27 can be adjusted according to the length of sponge roller 23, the nozzles 27 can be evenly distributed on one side of sponge roller 23, ensuring that the surface of sponge roller 23 is evenly coated with lubricating oil. The lubricating oil is then evenly coated on the surfaces of small vertical rollers 14, 15, 16, and 17, further improving lubrication uniformity and enhancing lubrication effectiveness. Lubricating oil can be regularly added to the liquid reservoir 5 through the liquid filling port to ensure continuous and stable lubrication.

[0051] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable welded pipe vertical roller fixture, comprising a base (1), characterized in that: Both sides of the upper end surface of the base (1) are slidably connected to a slider 1 (4), the upper end surface of the slider 1 (4) is rotatably provided with a roller shaft (2), the roller shaft (2) is sleeved and fixedly connected with a large vertical roller (3), both sides of the upper end surface of the base (1) are slidably connected to a slider 2 (10), the upper end surface of the slider 2 (10) is rotatably provided with a rotating shaft (9), the rotating shaft (9) is sleeved and fixedly connected with a rotating frame (7), the rotating frame (7) is provided with a small vertical roller 1 (14), a small vertical roller 2 (15), a small vertical roller 3 (16), and a small vertical roller 4 (17) for one circle of rotation, the small vertical roller 1 (14), the small vertical roller 2 (15), the small vertical roller 3 (16), and the small vertical roller 4 (17) are of different specifications, and both sides of the upper end of the base (1) are also provided with size-adaptive lubrication components; The size-adaptive lubrication assembly includes a fixed plate (18) fixedly connected to the upper end surface of the base (1), a cylinder (6) fixedly connected to one side of the upper end of the fixed plate (18), a slot plate (19) fixedly connected to the piston end of the cylinder (6), a slider (22) slidably connected to both sides of the slot of the slot plate (19), a sponge roller (23) fixedly connected to one end of the slider (22), a limit rod (28) fixedly connected to one side of the slot plate (19), a plurality of adjustment blocks (31) longitudinally equidistantly distributed and fixedly connected to the limit rod (28), and a nozzle (27) fixedly connected to one side of the adjustment block (31).

2. The adjustable vertical roller fixture for welding pipes according to claim 1, characterized in that: One side of the slider (4) is threadedly connected to a bidirectional threaded rod (33), both ends of the bidirectional threaded rod (33) are rotatably arranged on the base (1), and one side of the upper end surface of the base (1) is fixedly connected to a motor (34), and the output end of the motor (34) is fixedly connected to one end of the bidirectional threaded rod (33).

3. The adjustable vertical roller fixture for welding pipes according to claim 1, characterized in that: One side of the slider 2 (10) is threadedly connected to a bidirectional threaded rod 1 (12), both ends of the bidirectional threaded rod 1 (12) are rotatably arranged on the base (1), and one side of the upper end surface of the base (1) is fixedly connected to a motor 3 (13), and the output end of the motor 3 (13) is fixedly connected to one end of the bidirectional threaded rod 1 (12).

4. The adjustable vertical roller fixture for welding pipes according to claim 1, characterized in that: One side of the second slider (10) is fixedly connected to the second motor (11), and the output end of the second motor (11) is fixedly connected to one end of the rotating shaft (9).

5. The adjustable vertical roller fixture for welding pipes according to claim 1, characterized in that: The upper end surface of the rotating frame (7) is fixedly connected to a plurality of motors (8), and the output ends of the plurality of motors (8) are respectively fixedly connected to the ends of the small vertical roller (14), the small vertical roller (15), the small vertical roller (3) (16), and the small vertical roller (4) (17).

6. The adjustable vertical roller fixture for welding pipes according to claim 1, characterized in that: Two bidirectional threaded rods (21) are rotatably provided at both ends of the inner side of the groove plate (19), and both sides of the bidirectional threaded rod (21) are threadedly connected to the slider (22). One end of the groove plate (19) is fixedly connected to the motor (20), and the output end of the motor (20) is fixedly connected to one end of the bidirectional threaded rod (21).

7. The adjustable vertical roller fixture for welding pipes according to claim 1, characterized in that: One end of the nozzle (27) is connected to a hose (26), one end of the hose (26) is connected to a hard pipe (25), and the lower end of the hard pipe (25) is connected to a pump body (24).

8. The adjustable vertical roller fixture for welding pipes according to claim 7, characterized in that: The liquid inlet end of the pump body (24) is connected to a liquid storage barrel (5), and the lower end of the liquid storage barrel (5) is fixedly connected to the base (1).

9. The adjustable vertical roller fixture for welding pipes according to claim 1, characterized in that: One end of the regulating block (31) is fixedly connected to a guide post (32), one side of the slot plate (19) is fixedly connected to the second cylinder (29), and the piston end of the second cylinder (29) is fixedly connected to the inclined slot plate (30), and the inclined slot plate (30) is provided with a plurality of inclined slots, and the guide post (32) is inserted into the inclined slots and is slidably connected thereto.

10. The adjustable vertical roller fixture for welding pipes according to claim 8, characterized in that: A liquid injection port is provided on one side of the upper end of the liquid storage barrel (5).

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