Auxiliary positioning tool for welding heat distribution pipeline

Abstract

The invention relates to the field of clamps, and particularly discloses an auxiliary positioning tool for welding a heat distribution pipeline, which comprises a mounting frame, a positioning device, a positioning device, a positioning device, a positioning device and a positioning device, and is characterized in that the mounting frame is internally provided with a driving assembly and is in driving connection with a mounting block through the driving assembly; the turntable is fixedly mounted on the mounting block, and the turntable is fixedly connected with a mounting plate and a supporting plate for supporting the mounting plate; the second motor is fixedly mounted on the side wall of the mounting plate, the end of an output shaft of the second motor is fixedly connected with a second lead screw, and the second lead screw is in threaded connection with a mounting disc; the mechanical clamping arm is fixedly mounted on the side wall of the mounting plate; the driving assembly, the mounting block, the rotating disc and the mechanical clamping arm are arranged on the mounting frame, the position of the mounting block can be adjusted through the driving assembly, then the inclination angle of the mechanical clamping arm is adjusted through the rotating disc, the mechanical clamping arm is used for externally expanding and supporting a pipeline, and an operator can conveniently rotate the to-be-welded pipeline in any direction according to needs.

Description

Technical Field

[0001] The invention belongs to the technical field of clamps, and in particular relates to an auxiliary positioning tool for thermal pipeline welding. Background Art

[0002] In life or industry, thermal energy is often needed. The transfer medium of thermal energy is mostly liquid or gas, which needs to be transferred through thermal pipes. Designers need to design thermodynamic pipes into various forms according to installation requirements, such as straight pipes or curved pipes, and then weld different pipes together to form thermal pipes that transfer thermal energy media.

[0003] In the Chinese patent with publication number CN219818663U, an auxiliary positioning tool for thermal pipeline welding is mentioned, including a bottom plate, a welding frame is connected to the top of the bottom plate, a welding hole is opened at the top of the welding frame, sliding rods are connected to both sides of the welding frame, and a clamping unit is slidably arranged at one end of the sliding rod away from each other, a driving unit is connected to the top of the bottom plate, and a de-edging unit is connected to the top of the bottom plate. The clamping unit includes: a bottom clamping plate is fixedly arranged at the top, a top clamping plate is hinged on one side of the bottom clamping plate, and extrusion rollers are rotatably arranged on both sides of the bottom clamping plate and the top clamping plate, and the bottom clamping plate is slidably connected to the sliding rod, and a connecting plate is connected to one side of the bottom clamping plate, and the connecting plates are plugged and connected by bolts and nuts, and a slide rail is connected to the top of the bottom plate. The utility model effectively improves welding efficiency, reduces manpower consumption, ensures smooth surface of pipe fittings, and ensures welding effect.

[0004] During the application process, the applicant discovered that the above application had defects during use. Thermal pipelines need to be designed according to usage requirements and site conditions. Not only straight pipes are used for transportation, but also various curved pipes exist. When welding, auxiliary tooling needs to be suitable not only for straight pipe welding, but also for curved pipe welding. The above auxiliary positioning tooling can only be used to assist in straight pipe welding, but cannot be used for curved pipe welding, and has a narrow scope of application. Summary of the invention

[0005] The object of the present invention is to provide an auxiliary positioning tool for thermal pipeline welding to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An auxiliary positioning tool for thermal pipeline welding, comprising:

[0008] A mounting frame, wherein a driving assembly is disposed inside the mounting frame and is connected to a mounting block through driving of the driving assembly;

[0009] A turntable, the turntable is fixedly mounted on the mounting block, and a mounting plate and a supporting plate supporting the mounting plate are fixedly connected to the turntable;

[0010] A second motor, wherein the second motor is fixedly mounted on the side wall of the mounting plate, and a second lead screw is fixedly connected to the end of the output shaft of the second motor, and a mounting plate is threadedly connected to the second lead screw;

[0011] A mechanical clamping arm is fixedly mounted on a side wall of the mounting plate, and one end of the mechanical clamping arm is hinged to the mounting plate.

[0012] Preferably, the mechanical clamping arm includes a fixed mounting rod fixedly mounted on the side wall of the mounting plate, a supporting mounting rod hinged on the fixed mounting rod, and a movable mounting rod hinged on the end of the supporting mounting rod, wherein a pull rod is hinged on the supporting mounting rod, and the end of the pull rod is hinged to the mounting plate.

[0013] Preferably, the movable mounting rod is provided with a plurality of groups of telescopic cylinders, one group of telescopic cylinders is fixedly mounted on the movable mounting rod, and two groups of telescopic cylinders are respectively hinged on the side walls of the movable mounting rod, the telescopic cylinder comprises an outer cylinder, a telescopic rod slidably inserted in the end of the outer cylinder, and a spring arranged inside the outer cylinder, the two ends of the spring are respectively abutted against the inner wall of the outer cylinder and the end of the telescopic rod, the outer cylinder of the middle telescopic cylinder is fixedly connected to the movable mounting rod, the outer cylinders of the telescopic cylinders on both sides are hinged to the side walls of the movable mounting rod, and a connecting plate is hinged between the telescopic rod of the middle telescopic cylinder and the outer cylinders of the telescopic cylinders on both sides.

[0014] Preferably, the telescopic rod side wall of the telescopic cylinder in the middle is fixedly connected with a stop block, the telescopic rod side walls of the telescopic cylinder on both sides are rotatably connected with rollers, an air passage is opened inside the stop block, an arc-shaped telescopic air cylinder is fixedly connected between the supporting mounting rod and the dynamic mounting rod, a connecting pipe is fixedly connected to the end of the telescopic air cylinder, the end of the connecting pipe is fixedly connected to the stop block, and the connecting pipe is communicated with the air passage.

[0015] Preferably, the turntable includes a disc body fixedly mounted on the mounting block, a disc plate rotatably connected to the disc body, and a worm wheel fixedly mounted on the bottom of the disc plate, and a worm screw meshing with the worm wheel is rotatably connected to a side wall of the disc body.

[0016] Preferably, the driving assembly includes a first motor fixedly mounted on the side wall of the mounting frame, a first lead screw fixedly mounted on the end of the output shaft of the first motor, and a transmission rod fixedly mounted on the inner wall of the mounting frame, the end of the first lead screw being rotatably connected to the inner wall of the mounting frame, the mounting block being threadedly connected to the first lead screw, and the mounting block being slidably connected to the transmission rod.

[0017] Preferably, the mounting frame is arranged in a T-shape, and two sets of driving assemblies are arranged on the mounting frame, and the two sets of driving assemblies respectively drive a set of mechanical clamping arms, and the driving directions of the two sets of driving assemblies are perpendicular to each other.

[0018] Preferably, a gap is left between the mounting frame and the ground, and a roller is rotatably connected to the bottom of the mounting block.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention arranges a driving assembly, a mounting block, a turntable and a mechanical clamping arm on a mounting frame, and the position of the mounting block can be adjusted by the driving assembly, and the tilt angle of the mechanical clamping arm can be adjusted by the turntable. The mechanical clamping arm is used for supporting the pipeline outward, so that the operator can rotate the pipeline to be welded in any direction as needed, so as to flexibly adjust the angle of the welding pipeline.

[0021] The operator can also use the second motor to drive the second lead screw to rotate, and the second lead screw drives the mounting plate to move to adjust the outer diameter of the mechanical clamp arm, so that the mechanical clamp arm can clamp pipes of different diameters.

[0022] By setting the mounting frame into a T shape and arranging two sets of drive components and two sets of mechanical clamping arms on the mounting frame, after clamping the two pipes with the mechanical clamping arms, the operator can control the distance between the two pipes through the drive components and adjust the orientation angle between the two pipes through the turntable, so that the user can adjust the two pipes to be welded to a suitable angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 It is a schematic diagram of the connection structure between the mounting plate and the mechanical clamping arm of the present invention;

[0026] Figure 4 It is a schematic diagram of the mechanical clamping arm structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the connection structure between the movable installation rod and the telescopic cylinder of the present invention;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the telescopic cylinder of the present invention;

[0029] Figure 7 It is a schematic diagram of the cross-sectional structure of the abutment block of the present invention;

[0030] Figure 8 It is a schematic diagram of the cross-sectional structure of the turntable of the present invention;

[0031] In the figure: 1. mounting frame; 2. first motor; 3. first lead screw; 4. transmission rod; 5. mounting block; 51. roller; 6. turntable; 61. disk body; 62. disk plate; 63. worm gear; 64. worm; 7. mounting plate; 8. support plate; 9. second motor; 10. second lead screw; 11. mounting plate; 12. fixed mounting rod; 13. supporting mounting rod; 14. moving mounting rod; 15. pull rod; 16. telescopic cylinder; 161. outer cylinder; 162. telescopic rod; 163. spring; 17. connecting plate; 18. block; 181. airway; 19. roller; 20. telescopic air cylinder; 21. connecting pipe. DETAILED DESCRIPTION

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

[0033] Embodiment 1:

[0034] See also Figure 1 - Figure 8 As shown, an auxiliary positioning tool for thermal pipeline welding includes:

[0035] A mounting frame 1, wherein a driving assembly is disposed inside the mounting frame 1 and is connected to a mounting block 5 through driving of the driving assembly;

[0036] A turntable 6, wherein the turntable 6 is fixedly mounted on the mounting block 5, and a mounting plate 7 and a supporting plate 8 supporting the mounting plate 7 are fixedly connected to the turntable 6;

[0037] A second motor 9, wherein the second motor 9 is fixedly mounted on the side wall of the mounting plate 7, and a second lead screw 10 is fixedly connected to the end of the output shaft of the second motor 9, and a mounting plate 11 is threadedly connected to the second lead screw 10;

[0038] A mechanical clamping arm is fixedly mounted on a side wall of the mounting plate 7 , and one end of the mechanical clamping arm is hinged to the mounting plate 11 .

[0039] It can be seen from the above that when the operator needs to weld a pipe with a curved angle, the pipe to be welded can be placed on the mechanical clamp arm, and the second motor 9 is started to drive the lead screw 10 to rotate. The rotating lead screw 10 drives the mounting plate 11 to move. The moving mounting plate 11 causes the mechanical clamp arm to open, and the opened mechanical clamp arm clamps the pipe. After the pipe is positioned by the mechanical clamp arm, the position of the pipe is adjusted by the drive assembly, and the angle of the mounting plate 7 can be adjusted by the turntable 6, thereby adjusting the angle of the mechanical clamp arm and the pipe, so that the operator can adjust the pipe to a suitable angle for welding, which can meet the user's requirements for welding curved pipes.

[0040] The mechanical clamping arm includes a fixed mounting rod 12 fixedly mounted on the side wall of the mounting plate 7, a supporting mounting rod 13 hinged on the fixed mounting rod 12, and a movable mounting rod 14 hinged on the end of the supporting mounting rod 13. A pull rod 15 is hinged on the supporting mounting rod 13, and the end of the pull rod 15 is hinged to the mounting plate 11. A through hole is opened on the mounting plate 7, and the pull rod 15 passes through the mounting plate 7 through the through hole.

[0041] The mounting plate 11 that moves axially along the second lead screw 10 will drive the pull rod 15 to move together, and the moving pull rod 15 will drag the supporting mounting rod 13 to rotate, and the rotating supporting mounting rod 13 will cause the dynamic mounting rod 14 to rotate. Since two supporting mounting rods 13 are arranged between the dynamic mounting rod 14 and the fixed mounting rod 12, the two supporting mounting rods 13 make the fixed mounting rod 12 and the dynamic mounting rod 14 always remain parallel. After the mechanical clamping arm is inserted into the pipe to be processed, the dynamic mounting rod 14 that moves outward will abut against the inner wall of the pipe, so that the pipe to be processed can stay stably outside the mechanical arm.

[0042] The turntable 6 includes a disk body 61 fixedly mounted on the mounting block 5, a disk plate 62 rotatably connected to the disk body 61, and a worm gear 63 fixedly mounted at the bottom of the disk plate 62. The side wall of the disk body 61 is rotatably connected to a worm 64 meshing with the worm gear 63.

[0043] When the operator needs to adjust the direction of the pipe on the mechanical clamp arm, he can rotate the worm 64, which will drive the worm wheel 63 to rotate, and the worm wheel 63 will then drive the disc plate 62 to rotate, and the disc plate 62 will drive the mounting plate 7, the mechanical clamp arm and the pipe to rotate, so as to adjust the direction of the pipe to a suitable processing position.

[0044] The driving assembly includes a first motor 2 fixedly mounted on the side wall of the mounting frame 1, a first lead screw 3 fixedly mounted on the end of the output shaft of the first motor 2, and a transmission rod 4 fixedly mounted on the inner wall of the mounting frame 1, the end of the first lead screw 3 is rotatably connected to the inner wall of the mounting frame 1, the mounting block 5 is threadedly connected to the first lead screw 3, and the mounting block 5 is slidably connected to the transmission rod 4.

[0045] When the operator needs to adjust the position of the pipeline, the first motor 2 is started, and the output shaft of the first motor 2 drives the first screw 3 to rotate. The rotating first screw 3 drives the mounting block 5 to slide on the first screw 3 and the transmission rod 4. The sliding mounting block 5 moves the pipeline to a suitable position for welding.

[0046] The mounting frame 1 is arranged in a T shape, and two sets of driving components are arranged on the mounting frame 1, and the two sets of driving components respectively drive a set of mechanical clamping arms, and the driving directions of the two sets of driving components are perpendicular to each other. The operator can respectively put two pipes to be processed on the outside of the two sets of mechanical clamping arms, and then adjust the directions of the two pipes to be processed at the same time through the driving components, so that the operator can adjust the pipe processing position more flexibly.

[0047] A gap is left between the mounting frame 1 and the ground, and a roller 51 is rotatably connected to the bottom of the mounting block 5. When the mounting block 5 moves, the roller 51 rolls on the ground, which can effectively reduce the friction between the mounting block 5 and the ground. In addition, gaps are left between the mounting frame 1 and the mounting block 5 and the ground, which is convenient for operators to clean up welding slag that falls on the ground.

[0048] Embodiment 2:

[0049] See also Figure 1 - Figure 8 As shown, an auxiliary positioning tool for thermal pipeline welding includes:

[0050] A mounting frame 1, wherein a driving assembly is disposed inside the mounting frame 1 and is connected to a mounting block 5 through driving of the driving assembly;

[0051] A turntable 6, wherein the turntable 6 is fixedly mounted on the mounting block 5, and a mounting plate 7 and a supporting plate 8 supporting the mounting plate 7 are fixedly connected to the turntable 6;

[0052] A second motor 9, wherein the second motor 9 is fixedly mounted on the side wall of the mounting plate 7, and a second lead screw 10 is fixedly connected to the end of the output shaft of the second motor 9, and a mounting plate 11 is threadedly connected to the second lead screw 10;

[0053] A mechanical clamping arm is fixedly mounted on a side wall of the mounting plate 7 , and one end of the mechanical clamping arm is hinged to the mounting plate 11 .

[0054] It can be seen from the above that when the operator needs to weld a pipe with a curved angle, the pipe to be welded can be placed on the mechanical clamp arm, and the second motor 9 is started to drive the lead screw 10 to rotate. The rotating lead screw 10 drives the mounting plate 11 to move. The moving mounting plate 11 causes the mechanical clamp arm to open, and the opened mechanical clamp arm clamps the pipe. After the pipe is positioned by the mechanical clamp arm, the position of the pipe is adjusted by the drive assembly, and the angle of the mounting plate 7 can be adjusted by the turntable 6, thereby adjusting the angle of the mechanical clamp arm and the pipe, so that the operator can adjust the pipe to a suitable angle for welding, which can meet the user's requirements for welding curved pipes.

[0055] The mechanical clamping arm includes a fixed mounting rod 12 fixedly mounted on the side wall of the mounting plate 7, a supporting mounting rod 13 hinged on the fixed mounting rod 12, and a movable mounting rod 14 hinged on the end of the supporting mounting rod 13. A pull rod 15 is hinged on the supporting mounting rod 13, and the end of the pull rod 15 is hinged to the mounting plate 11. A through hole is opened on the mounting plate 7, and the pull rod 15 passes through the mounting plate 7 through the through hole.

[0056] The mounting plate 11 that moves axially along the second lead screw 10 will drive the pull rod 15 to move together, and the moving pull rod 15 will drag the supporting mounting rod 13 to rotate, and the rotating supporting mounting rod 13 will cause the dynamic mounting rod 14 to rotate. Since two supporting mounting rods 13 are arranged between the dynamic mounting rod 14 and the fixed mounting rod 12, the two supporting mounting rods 13 make the fixed mounting rod 12 and the dynamic mounting rod 14 always remain parallel. After the mechanical clamping arm is inserted into the pipe to be processed, the dynamic mounting rod 14 that moves outward will abut against the inner wall of the pipe, so that the pipe to be processed can stay stably outside the mechanical arm.

[0057] The movable mounting rod 14 is provided with a plurality of groups of telescopic cylinders 16, one group of telescopic cylinders 16 is fixedly mounted on the movable mounting rod 14, and two groups of telescopic cylinders 16 are respectively hinged on the side walls of the movable mounting rod 14, the telescopic cylinder 16 comprises an outer cylinder 161, a telescopic rod 162 slidably inserted in the end of the outer cylinder 161, and a spring 163 arranged inside the outer cylinder 161, and the two ends of the spring 163 are respectively abutted against the inner wall of the outer cylinder 161 and the end of the telescopic rod 162, the outer cylinder 161 of the telescopic cylinder 16 in the middle is fixedly connected to the movable mounting rod 14, the outer cylinders 161 of the telescopic cylinders 16 on both sides are hinged to the side walls of the movable mounting rod 14, and a connecting plate 17 is hinged between the telescopic rod 162 of the telescopic cylinder 16 in the middle and the outer cylinders 161 of the telescopic cylinders 16 on both sides.

[0058] The side wall of the telescopic rod 162 of the telescopic cylinder 16 in the middle is fixedly connected with a stop block 18, and the side walls of the telescopic rod 162 of the telescopic cylinder 16 on both sides are rotatably connected with a roller 19. An air passage 181 is opened inside the stop block 18, and an arc-shaped telescopic air cylinder 20 is fixedly connected between the supporting mounting rod 13 and the dynamic mounting rod 14. The end of the telescopic air cylinder 20 is fixedly connected with a connecting pipe 21, and the end of the connecting pipe 21 is fixedly connected to the stop block 18, and the connecting pipe 21 is communicated with the air passage 181.

[0059] When the movable mounting rod 14 moves outward, the stopper 18 will first contact the inner wall of the pipe. As the movable mounting rod 14 continues to move outward, the pipe compresses the telescopic cylinder 16 through the stopper 18, so that the telescopic rod 162 retracts into the inner compression spring 163 of the outer cylinder 161. As the telescopic rod 162 of the middle telescopic cylinder 16 retracts into the inner part of the outer cylinder 161, the telescopic rod 162 drives the connecting plate 17 to rotate. The rotating connecting plate 17 will push the telescopic cylinders 16 on both sides to the two sides of the movable mounting rod 14. At this time, the rollers 19 at the ends of the telescopic cylinders 16 on both sides will roll on the inner wall of the pipe. At the same time, as the movable mounting rod 14 and the fixed mounting rod 12 are moved outward, the pipe 16 is compressed by the stopper 18. As the distance increases, the telescopic gas cylinder 20 will be passively pulled open by the mounting rod 14. At this time, the telescopic gas cylinder 20 will suck away the air inside the airway 181 through the connecting tube 21, forming a negative pressure environment inside the airway 181, helping the stop block 18 to be firmly adsorbed on the inner wall of the pipe, effectively reducing the probability of slipping between the pipe and the stop block 18. As the mechanical clamp arm is fully opened, one mechanical clamp arm has three contact points with the inner wall of the pipe, and three groups of mechanical arms are arranged on the side wall of the mounting plate 7. The pipe is sleeved on the outside of the three groups of mechanical arms. There are multiple contact points between the three groups of mechanical arms and the inner wall of the pipe to be processed, which can keep the connection of the pipe stable and avoid pipe deviation during subsequent welding of the pipe.

[0060] The turntable 6 includes a disk body 61 fixedly mounted on the mounting block 5, a disk plate 62 rotatably connected to the disk body 61, and a worm gear 63 fixedly mounted at the bottom of the disk plate 62. The side wall of the disk body 61 is rotatably connected to a worm 64 meshing with the worm gear 63.

[0061] When the operator needs to adjust the direction of the pipe on the mechanical clamp arm, he can rotate the worm 64, which will drive the worm wheel 63 to rotate, and the worm wheel 63 will then drive the disc plate 62 to rotate, and the disc plate 62 will drive the mounting plate 7, the mechanical clamp arm and the pipe to rotate, so as to adjust the direction of the pipe to a suitable processing position.

[0062] The driving assembly includes a first motor 2 fixedly mounted on the side wall of the mounting frame 1, a first lead screw 3 fixedly mounted on the end of the output shaft of the first motor 2, and a transmission rod 4 fixedly mounted on the inner wall of the mounting frame 1, the end of the first lead screw 3 is rotatably connected to the inner wall of the mounting frame 1, the mounting block 5 is threadedly connected to the first lead screw 3, and the mounting block 5 is slidably connected to the transmission rod 4.

[0063] When the operator needs to adjust the position of the pipeline, the first motor 2 is started, and the output shaft of the first motor 2 drives the first screw 3 to rotate. The rotating first screw 3 drives the mounting block 5 to slide on the first screw 3 and the transmission rod 4. The sliding mounting block 5 moves the pipeline to a suitable position for welding.

[0064] The mounting frame 1 is arranged in a T shape, and two sets of driving components are arranged on the mounting frame 1, and the two sets of driving components respectively drive a set of mechanical clamping arms, and the driving directions of the two sets of driving components are perpendicular to each other. The operator can respectively put two pipes to be processed on the outside of the two sets of mechanical clamping arms, and then adjust the directions of the two pipes to be processed at the same time through the driving components, so that the operator can adjust the pipe processing position more flexibly.

[0065] A gap is left between the mounting frame 1 and the ground, and a roller 51 is rotatably connected to the bottom of the mounting block 5. When the mounting block 5 moves, the roller 51 rolls on the ground, which can effectively reduce the friction between the mounting block 5 and the ground. In addition, gaps are left between the mounting frame 1 and the mounting block 5 and the ground, which is convenient for operators to clean up welding slag that falls on the ground.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0067] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. An auxiliary positioning tool for thermal pipeline welding, characterized in that: include: A mounting frame (1), wherein a driving assembly is disposed inside the mounting frame (1) and is connected to a mounting block (5) through driving of the driving assembly; A turntable (6), the turntable (6) being fixedly mounted on the mounting block (5), the turntable (6) being fixedly connected to a mounting plate (7) and a supporting plate (8) supporting the mounting plate (7); A second motor (9), the second motor (9) being fixedly mounted on a side wall of the mounting plate (7), and a second lead screw (10) being fixedly connected to an end of an output shaft of the second motor (9), and a mounting plate (11) being threadedly connected to the second lead screw (10); A mechanical clamping arm is fixedly mounted on a side wall of a mounting plate (7), and one end of the mechanical clamping arm is hinged to a mounting plate (11).

2. The auxiliary positioning tool for thermal pipeline welding according to claim 1 is characterized in that: The mechanical clamping arm comprises a fixed mounting rod (12) fixedly mounted on the side wall of the mounting plate (7), a supporting mounting rod (13) hinged on the fixed mounting rod (12), and a movable mounting rod (14) hinged on the end of the supporting mounting rod (13); a pull rod (15) is hinged on the supporting mounting rod (13), and the end of the pull rod (15) is hinged to the mounting plate (11).

3. The auxiliary positioning tool for thermal pipeline welding according to claim 2 is characterized in that: The movable mounting rod (14) is provided with a plurality of groups of telescopic cylinders (16), one group of telescopic cylinders (16) is fixedly mounted on the movable mounting rod (14), and two groups of telescopic cylinders (16) are respectively hinged on the side walls of the movable mounting rod (14); the telescopic cylinder (16) comprises an outer cylinder (161), a telescopic rod (162) slidably inserted at the end of the outer cylinder (161), and a spring (163) arranged inside the outer cylinder (161); two ends of the spring (163) are respectively in contact with the inner wall of the outer cylinder (161) and the end of the telescopic rod (162); the outer cylinder (161) of the middle telescopic cylinder (16) is fixedly connected to the movable mounting rod (14); the outer cylinders (161) of the telescopic cylinders (16) on both sides are hinged to the side walls of the movable mounting rod (14); and a connecting plate (17) is hinged between the telescopic rod (162) of the middle telescopic cylinder (16) and the outer cylinders (161) of the telescopic cylinders (16) on both sides.

4. The auxiliary positioning tool for thermal pipeline welding according to claim 3 is characterized in that: The side wall of the telescopic rod (162) of the telescopic cylinder (16) in the middle is fixedly connected with a stop block (18), and the side walls of the telescopic rod (162) of the telescopic cylinder (16) on both sides are rotatably connected with rollers (19). An air passage (181) is provided inside the stop block (18). An arc-shaped telescopic air cylinder (20) is fixedly connected between the supporting mounting rod (13) and the movable mounting rod (14). The end of the telescopic air cylinder (20) is fixedly connected with a connecting pipe (21). The end of the connecting pipe (21) is fixedly connected to the stop block (18), and the connecting pipe (21) is communicated with the air passage (181).

5. The auxiliary positioning tool for thermal pipeline welding according to claim 1 is characterized in that: The rotating disk (6) comprises a disk body (61) fixedly mounted on a mounting block (5), a disk plate (62) rotatably connected to the disk body (61), and a worm gear (63) fixedly mounted on the bottom of the disk plate (62); a worm (64) meshing with the worm gear (63) is rotatably connected to a side wall of the disk body (61).

6. The auxiliary positioning tool for thermal pipeline welding according to claim 1 is characterized in that: The driving assembly comprises a first motor (2) fixedly mounted on a side wall of a mounting frame (1), a first lead screw (3) fixedly mounted on the end of an output shaft of the first motor (2), and a transmission rod (4) fixedly mounted on an inner wall of the mounting frame (1), wherein the end of the first lead screw (3) is rotatably connected to the inner wall of the mounting frame (1), the mounting block (5) is threadedly connected to the first lead screw (3), and the mounting block (5) is slidably connected to the transmission rod (4).

7. The auxiliary positioning tool for thermal pipeline welding according to claim 1 is characterized in that: The mounting frame (1) is arranged in a T-shape, and two sets of driving components are arranged on the mounting frame (1), and the two sets of driving components respectively drive a set of mechanical clamping arms, and the driving directions of the two sets of driving components are perpendicular to each other.

8. The auxiliary positioning tool for thermal pipeline welding according to claim 1 is characterized in that: A gap is left between the mounting frame (1) and the ground, and a roller (51) is rotatably connected to the bottom of the mounting block (5).

Images