阅读说明：本技术 一种管件下向焊接工装 (Downward welding tool for pipe fittings ) 是由 艾明刚 孙宁松 李民强 李应群 李国兴 崔文斌 于 2021-10-12 设计创作，主要内容包括：本发明提供了一种管件下向焊接工装,属于下向焊接辅助设备技术领域。其技术方案为：包括底架、设置在底架上的角度调节机构和管件夹持机构,底架包括底座,底座上设置有立柱,立柱外围套设有升降套筒,升降套筒侧面设置有防护壳,防护壳内设置有角度调节机构,角度调节机构包括活动设置在防护壳内部的球形壳体,球形壳体内壁之间设置有第一连杆,矩形壳体内设置有第一驱动电机,第一驱动电机上设置有第二连杆,第二连杆自由端套设在第一连杆外围,球形壳体侧面设置有倒L形安装板,倒L形安装板外侧设置有管件夹持机构。本发明的有益效果为：结构简单、使用方便,能够适用于不同规格的管道,同时能够多角度调节。(The invention provides a downward welding tool for a pipe fitting, and belongs to the technical field of downward welding auxiliary equipment. The technical scheme is as follows: the pipe fitting clamping device comprises a base frame, angle adjusting mechanism and pipe fitting fixture of setting on the chassis, the chassis includes the base, be provided with the stand on the base, the peripheral cover of stand is equipped with the lift sleeve, the lift sleeve side is provided with the protecting crust, be provided with angle adjusting mechanism in the protecting crust, angle adjusting mechanism sets up the spherical shell inside the protecting crust including the activity, be provided with first connecting rod between the spherical shell inner wall, be provided with first driving motor in the rectangular shell, be provided with the second connecting rod on the first driving motor, the free end cover of second connecting rod is established in first connecting rod periphery, spherical shell side is provided with the shape of falling L mounting panel, the shape of falling L mounting panel outside is provided with pipe fitting fixture. The invention has the beneficial effects that: simple structure, convenient to use can be applicable to the pipeline of different specifications, simultaneously can the multi-angle modulation.)

1. A pipe fitting downward welding tool is characterized by comprising an underframe, an angle adjusting mechanism and a pipe fitting clamping mechanism, wherein the angle adjusting mechanism and the pipe fitting clamping mechanism are arranged on the underframe;

the bottom frame comprises a base, wherein an upright post is arranged on the base, a lifting sleeve is sleeved on the periphery of the upright post, a protective shell is arranged on the side surface of the lifting sleeve, the angle adjusting mechanism is arranged in the protective shell, and an arc-shaped opening is formed in the side surface of the protective shell;

the angle adjusting mechanism comprises a spherical shell movably arranged in the protective shell, a first connecting rod is arranged between the inner walls of the spherical shell, a first driving motor is arranged in the rectangular shell, a second connecting rod is arranged at the end part of a motor shaft of the first driving motor, the free end of the second connecting rod is sleeved on the periphery of the first connecting rod, and a notch is formed in one side, close to the first driving motor, of the spherical shell;

an inverted L-shaped mounting plate penetrating through the arc-shaped opening is arranged on the side face of the spherical shell, and the pipe fitting clamping mechanism is arranged on the outer side of the inverted L-shaped mounting plate;

the pipe fitting clamping mechanism comprises a U-shaped frame fixedly arranged on the outer side of the inverted L-shaped mounting plate, and a plurality of fixed spherical universal wheels and elastic spherical universal wheels are correspondingly arranged on side plates on two sides of the U-shaped frame respectively.

2. The pipe fitting downward welding tool according to claim 1, wherein the protective shell comprises a rectangular shell arranged on the side face of the lifting sleeve, a circular shell is arranged on one side of the rectangular shell, the rectangular shell is communicated with the inside of the circular shell, and the arc-shaped opening is formed in the side face of the circular shell.

3. The pipe fitting downward welding tool according to claim 2, wherein an upper limiting seat and a lower limiting seat are symmetrically arranged on the top surface and the bottom surface of the inner side of the circular shell, and the spherical shell is arranged between the upper limiting seat and the lower limiting seat.

4. The pipe fitting downward welding tool according to claim 1, wherein the second connecting rod comprises an arc-shaped connecting rod arranged inside the spherical shell, a fixed block A is arranged at one end of the arc-shaped connecting rod, a horizontal plate is arranged inside the rectangular shell, the first driving motor is arranged on the horizontal plate, the fixed block A is arranged on a motor shaft of the first driving motor, a fixed block B is arranged at the other end of the arc-shaped connecting rod, the first connecting rod is arranged at the central position inside the spherical shell, and the fixed block B is sleeved on the periphery of the first connecting rod;

and a second driving motor is arranged on the side surface of the fixed block B, a driving gear is arranged at the end part of a motor shaft of the second driving motor, and a driven gear meshed with the driving gear is fixedly arranged on the periphery of the first connecting rod.

5. The pipe fitting downward welding tool according to claim 1, wherein an annular outer toothed ring is arranged on the periphery of the middle position of the spherical shell, an opening corresponding to the gap of the spherical shell is formed in one side of the annular outer toothed ring, an arc-shaped sliding groove is formed in the end face of the annular outer toothed ring, and an arc-shaped sliding block is arranged in the arc-shaped sliding groove;

the arc-shaped sliding block is provided with the inverted L-shaped mounting plate penetrating out of the arc-shaped opening, the inverted L-shaped mounting plate comprises a horizontal part and a vertical part, one end of the horizontal part is arranged on the arc-shaped sliding block, the other end of the arc-shaped sliding block is far away from the spherical shell and is provided with the vertical part, the inner side of the vertical part is provided with a third driving motor, and the end part of a motor shaft of the third driving motor is provided with an outer ring gear meshed with the annular outer gear ring teeth;

the pipe fitting clamping mechanism is arranged on the outer side of the vertical portion.

6. The pipe fitting downward welding tool according to claim 1 or 5, wherein a plurality of fixed spherical universal wheels are arranged on a side plate on one side of the U-shaped frame, and a plurality of mounting sleeves are arranged on the inner side of a side plate on the other side of the U-shaped frame corresponding to the fixed spherical universal wheels;

the mounting sleeve is internally provided with an elastic spherical universal wheel, a spring is arranged between the elastic spherical universal wheel and the bottom of the mounting sleeve, one end of the spring is fixedly arranged on a spherical shell of the elastic spherical universal wheel, the other end of the spring is arranged at the bottom of the mounting sleeve, an annular baffle is arranged on the end face of the mounting sleeve, a shell of the elastic spherical universal wheel is abutted against the inner side of the annular baffle, and the front end of a roller of the elastic spherical universal wheel is arranged at the outer side of the annular baffle.

7. The pipe fitting downward welding tool according to claim 6, characterized in that a plurality of through holes penetrating through the U-shaped frame side plates are formed in the bottom of the installation sleeve, vertical rods are arranged in the through holes, one end of each vertical rod is arranged inside the installation sleeve and provided with a limiting piece, the other end of each vertical rod penetrates through the through holes to be provided with connecting plates, the connecting plates are arranged on the periphery of the U-shaped frame and provided with U-shaped installation plates, pushing electric cylinders are arranged on the U-shaped installation plates, and the end portions of electric push rods for pushing the electric cylinders penetrate through the U-shaped installation plates and are connected to the connecting plates.

8. The pipe fitting downward welding tool according to claim 7, wherein the fixed spherical universal wheel and the elastic spherical universal wheel respectively comprise a spherical shell with an upper end and a lower end open, and a spherical roller is arranged in the spherical shell.

9. The pipe fitting downward welding tool according to any one of claims 3, wherein the upper end faces of the upper limiting seat and the lower limiting seat are cambered surfaces, a plurality of bull-eye wheels are arranged on the cambered surfaces, and the outer surface of the spherical shell abuts against the spherical surfaces of the bull-eye wheels.

10. The pipe fitting downward welding tool according to any one of claims 1 to 8, wherein through positioning holes are formed in side walls of two sides of the lifting sleeve, a plurality of positioning holes are formed in the stand column at equal intervals, the lifting sleeve and the stand column are fixedly connected through fixing pins inserted into the positioning holes, and a pair of arc-shaped supporting plates are symmetrically arranged on two sides of the bottom of the U-shaped frame.

Technical Field

The invention relates to the technical field of downward welding auxiliary equipment, in particular to a pipe fitting downward welding tool.

Background

With the development of petroleum and natural gas and petrochemical industry, the west-east gas transmission engineering is taken as a mark, the construction peak of long-distance pipelines in China has come, long-distance oil and gas pipelines are developed towards the direction of large-diameter and high-pressure transmission more and more, the downward welding technology of the long-distance pipelines is introduced into China since the 20 th century and 60 th year, and through the development of decades, the full-automatic gas shielded welding technology and the downward welding technology are combined to be taken as the development trend of the welding technology of the long-distance pipelines, so that the full-automatic gas shielded welding technology and the downward welding technology can be greatly popularized in the construction of the long-distance pipelines in China.

At present, the downward welding tool is not standardized, and in order to better meet the requirements of teaching examinations, particularly competitions, the downward welding tool which is wide in application range, safe, reliable and practical needs to be designed, improved and manufactured.

The down-direction welding tool does not have a unified standard, generally a simple tool is temporarily made according to the diameter of the steel pipe and the technical requirement, the tool has larger potential safety hazard in the safety aspect and has the problem of resource waste, the tool is only suitable for temporary down-direction welding training of one pipe diameter welding method, and the tool is inconvenient to adjust and has different patterns.

Disclosure of Invention

The invention aims to provide a pipe fitting downward welding tool which is simple in structure, convenient to use, suitable for pipelines of different specifications and capable of being adjusted at multiple angles.

The invention is realized by the following measures:

a pipe fitting downward welding tool is characterized by comprising an underframe, an angle adjusting mechanism and a pipe fitting clamping mechanism, wherein the angle adjusting mechanism and the pipe fitting clamping mechanism are arranged on the underframe;

the pipe fitting clamping mechanism can clamp and fix a steel pipe applied to training, and the angle adjusting mechanism can adjust the angle of the steel pipe in multiple directions, so that personnel can conveniently train at various angles;

the bottom frame comprises a base, wherein an upright post is arranged on the base, a lifting sleeve is sleeved on the periphery of the upright post, a protective shell is arranged on the side surface of the lifting sleeve, the angle adjusting mechanism is arranged in the protective shell, and an arc-shaped opening is formed in the side surface of the protective shell;

the overall height of the angle adjusting mechanism can be adjusted by lifting the lifting sleeve;

the angle adjusting mechanism comprises a spherical shell movably arranged in the protective shell, a first connecting rod is arranged between the inner walls of the spherical shell, a first driving motor is arranged in the rectangular shell, a second connecting rod is arranged at the end part of a motor shaft of the first driving motor, the free end of the second connecting rod is sleeved on the periphery of the first connecting rod, and a notch is formed in one side, close to the first driving motor, of the spherical shell;

an inverted L-shaped mounting plate penetrating through the arc-shaped opening is arranged on the side face of the spherical shell, and the pipe fitting clamping mechanism is arranged on the outer side of the inverted L-shaped mounting plate;

the pipe fitting clamping mechanism comprises a U-shaped frame fixedly arranged on the outer side of the inverted L-shaped mounting plate, and a plurality of fixed spherical universal wheels and elastic spherical universal wheels are correspondingly arranged on side plates on two sides of the U-shaped frame respectively;

the fixed spherical universal wheel and the elastic spherical universal wheel can clamp the steel pipe and simultaneously facilitate rotating the steel pipe body.

The invention has the following specific characteristics:

the protective housing is including setting up the rectangle casing of lifting sleeve side, rectangle casing one side is provided with circular form casing, the rectangle casing with the inside intercommunication of circular form casing, circular form casing side has been seted up the arc opening.

The spherical shell is characterized in that an upper limiting seat and a lower limiting seat are symmetrically arranged on the top surface and the bottom surface of the inner side of the circular shell, and the spherical shell is arranged between the upper limiting seat and the lower limiting seat.

The second connecting rod comprises an arc-shaped connecting rod arranged in the spherical shell, one end of the arc-shaped connecting rod is provided with a fixed block A, a horizontal plate is arranged in the rectangular shell, the horizontal plate is provided with the first driving motor, the fixed block A is arranged on a motor shaft of the first driving motor, the other end of the arc-shaped connecting rod is provided with a fixed block B, the first connecting rod is arranged at the center position in the spherical shell, and the fixed block B is sleeved on the periphery of the connecting rod;

preferably, the fixed block B can only rotate on the connecting rod and cannot move along the length direction of the connecting rod;

and a second driving motor is arranged on the side surface of the fixed block B, a driving gear is arranged at the end part of a motor shaft of the second driving motor, and a driven gear meshed with the driving gear is fixedly arranged on the periphery of the first connecting rod.

An annular outer toothed ring is arranged on the periphery of the middle position of the spherical shell, an opening corresponding to the gap of the spherical shell is formed in one side of the annular outer toothed ring, an arc-shaped sliding groove is formed in the end face of the annular outer toothed ring, and an arc-shaped sliding block is arranged in the arc-shaped sliding groove;

the arc-shaped sliding block is provided with the inverted L-shaped mounting plate penetrating out of the arc-shaped opening, the inverted L-shaped mounting plate comprises a horizontal part and a vertical part, one end of the horizontal part is arranged on the arc-shaped sliding block, the other end of the arc-shaped sliding block is far away from the spherical shell and is provided with the vertical part, the inner side of the vertical part is provided with a third driving motor, and the end part of a motor shaft of the third driving motor is provided with an outer ring gear meshed with the annular outer gear ring teeth;

the pipe fitting clamping mechanism is arranged on the outer side of the vertical part;

the first driving motor works independently (the second driving motor and the third driving motor are turned off), and the first driving motor can drive the second connecting rod and the first connecting rod to rotate so as to drive the spherical shell and the clamping mechanism to rotate and can drive the adjusting steel pipe to rotate so as to adjust the training surface of the steel pipe;

the second driving motor works independently (the first driving motor and the third driving motor are turned off), the first driving motor can drive the driving gear and the driven gear to rotate, and the driven gear can drive the first connecting rod and the spherical shell to rotate around the driving gear because the first driving motor is in a fixed state at the moment, so that the spherical shell and the clamping mechanism are driven to rotate, and the upward and downward inclination angles of the steel pipe are adjusted;

the third driving motor works independently (the first driving motor and the second driving motor are closed), the third driving motor can drive the outer ring gear to rotate, and the clamping mechanism can rotate around the annular outer ring gear through the matching of the outer ring gear and the annular outer ring gear because the first driving motor and the second driving motor are both in a fixed state at the moment, so that the horizontal position of the steel pipe is adjusted.

A plurality of fixed spherical universal wheels are arranged on a side plate on one side of the U-shaped frame, and a plurality of mounting sleeves are arranged on the inner side of the side plate on the other side of the U-shaped frame corresponding to the positions of the fixed spherical universal wheels;

the mounting sleeve is internally provided with an elastic spherical universal wheel, a spring is arranged between the elastic spherical universal wheel and the bottom of the mounting sleeve, one end of the spring is fixedly arranged on a spherical shell of the elastic spherical universal wheel, the other end of the spring is arranged at the bottom of the mounting sleeve, an annular baffle is arranged on the end face of the mounting sleeve, a shell of the elastic spherical universal wheel is abutted against the inner side of the annular baffle, and the front end of a roller of the elastic spherical universal wheel is arranged at the outer side of the annular baffle.

The bottom of each of the mounting sleeves is provided with a through hole penetrating through the side plate of the U-shaped frame, a vertical rod is arranged in each through hole, one end of each vertical rod is arranged in each mounting sleeve and provided with a limiting piece, the other end of each vertical rod penetrates through each through hole and is provided with a connecting plate, the periphery of each connecting plate and the U-shaped frame are provided with U-shaped mounting plates, each U-shaped mounting plate is provided with a pushing electric cylinder, and the end part of an electric push rod of each pushing electric cylinder penetrates through the U-shaped mounting plate and is connected to the connecting plate;

when the steel pipe is installed, the steel pipe is inserted into the fixed spherical universal wheels and between the elastic spherical universal wheels, the bottom of the steel pipe is abutted to the innermost side of the U-shaped frame, then the steel pipe is rotated according to the welding training position of the steel pipe (at the moment), the fixed spherical universal wheels and the elastic spherical universal wheels can normally work), the electric pushing cylinder is controlled at last, the electric pushing cylinder pushes the connecting plate, the limiting piece is extruded on the elastic spherical universal wheels, the elastic spherical universal wheels are tightly abutted, the fixed spherical universal wheels and the elastic spherical universal wheels extrude and clamp the steel pipe, and meanwhile the limiting piece can limit the movement of the wheel bodies of the elastic spherical universal wheels.

The fixed spherical universal wheel and the elastic spherical universal wheel respectively comprise a spherical shell with an upper end and a lower end opened, and spherical rollers are arranged inside the spherical shell.

The upper end surfaces of the upper limiting seat and the lower limiting seat are cambered surfaces, a plurality of bull-eye wheels are arranged on the cambered surfaces, and the outer surface of the spherical shell is abutted against the spherical surfaces of the bull-eye wheels.

The lifting sleeve is characterized in that penetrating positioning holes are formed in the side walls of two sides of the lifting sleeve, a plurality of positioning holes are formed in the stand at equal intervals, the lifting sleeve is fixedly connected with the stand through inserting fixing pins of the positioning holes, and a pair of arc supporting plates are symmetrically arranged on two sides of the bottom of the U-shaped frame.

When the steel pipe clamping device is used, a steel pipe is inserted into the clamping mechanism, after the position of the steel pipe is adjusted, the clamping mechanism clamps and fixes the steel pipe, and then the first driving motor, the second driving motor and the third driving motor are controlled to adjust the angle of the steel pipe according to training requirements, so that effective training is performed.

The invention has the beneficial effects that: simple structure, convenient to use can be applicable to the pipeline of different specifications, simultaneously can the multi-angle modulation.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a schematic structural view of a tube gripping mechanism and an angle adjustment mechanism according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of an internal structure of the tube gripping mechanism according to an embodiment of the present invention.

Fig. 4 is a schematic view of an internal structure of the angle adjustment mechanism according to the embodiment of the present invention.

Fig. 5 is a schematic view of an internal structure of the angle adjustment mechanism according to the embodiment of the present invention.

Fig. 6 is a schematic view of the internal structure of the spherical shell in the embodiment of the present invention.

Wherein the reference numerals are: 1. a base; 2. a column; 3. a lifting sleeve; 4. a fixing pin; 5. a protective shell; 501. a rectangular housing; 502. a circular shaped housing; 503. an arc-shaped opening; 504. a horizontal plate; 6. an angle adjusting mechanism; 7. a pipe fitting clamping mechanism; 8. a lower limit seat; 9. a spherical shell; 901. a first link; 10. an annular outer ring gear; 1001. an arc-shaped chute; 11. an arc-shaped sliding block; 12. an inverted L-shaped mounting plate; 13. a third drive motor; 14. an outer ring gear; 15. a U-shaped frame; 16. fixing the spherical universal wheel; 17. an elastic spherical universal wheel; 18. installing a sleeve; 1801. an annular baffle; 19. a spring; 20. a through hole; 21. a vertical rod; 22. connecting plates; 23. a limiting sheet; 24. a U-shaped mounting plate; 25. pushing the electric cylinder; 26. an arc-shaped connecting rod; 27. a fixed block B; 28. a fixed block A; 29. a first drive motor; 30. a second drive motor; 31. a driving gear; 32. a driven gear; 33. a notch; 34. and an upper limiting seat.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

Referring to fig. 1-6, a pipe downward welding tool comprises an underframe, an angle adjusting mechanism 6 arranged on the underframe and a pipe clamping mechanism 7;

the pipe fitting clamping mechanism 7 can clamp and fix a steel pipe for training, and the angle adjusting mechanism 6 can adjust the angle of the steel pipe in multiple directions, so that the training of personnel at various angles is facilitated;

the chassis comprises a base 1, wherein an upright post 2 is arranged on the base 1, a lifting sleeve 3 is sleeved on the periphery of the upright post 2, a protective shell 5 is arranged on the side surface of the lifting sleeve 3, an angle adjusting mechanism 6 is arranged in the protective shell 5, and an arc-shaped opening 503 is formed in the side surface of the protective shell 5;

the overall height of the angle adjusting mechanism 6 can be adjusted by lifting the lifting sleeve 3;

the angle adjusting mechanism 6 comprises a spherical shell 9 movably arranged in the protective shell 5, a first connecting rod 901 is arranged between the inner walls of the spherical shell 9, a first driving motor 29 is arranged in a rectangular shell 501, a second connecting rod is arranged at the end part of a motor shaft of the first driving motor 29, the free end of the second connecting rod is sleeved on the periphery of the first connecting rod 901, and a notch 33 is formed in one side, close to the first driving motor 29, of the spherical shell 9;

an inverted L-shaped mounting plate 12 penetrating through the arc-shaped opening 503 is arranged on the side surface of the spherical shell 9, and a pipe fitting clamping mechanism 7 is arranged on the outer side of the inverted L-shaped mounting plate 12;

the pipe fitting clamping mechanism 7 comprises a U-shaped frame 15 fixedly arranged on the outer side of the inverted L-shaped mounting plate 12, and a plurality of fixed spherical universal wheels 16 and elastic spherical universal wheels 17 are correspondingly arranged on side plates on two sides of the U-shaped frame 15 respectively;

the fixed spherical universal wheel 16 and the elastic spherical universal wheel 17 can clamp the steel pipe and simultaneously facilitate rotating the steel pipe body.

Protective housing 5 is including setting up the rectangle casing 501 in lifting sleeve 3 side, and rectangle casing 501 one side is provided with circular form casing 502, and rectangle casing 501 and the inside intercommunication of circular form casing 502, arc opening 503 has been seted up to circular form casing 502 side.

The upper limit seat 34 and the lower limit seat 8 are symmetrically arranged on the top surface and the bottom surface of the inner side of the circular shell 502, and the spherical shell 9 is arranged between the upper limit seat 34 and the lower limit seat 8.

The second connecting rod comprises an arc-shaped connecting rod 26 arranged in the spherical shell 9, one end of the arc-shaped connecting rod 26 is provided with a fixing block A28, a horizontal plate 504 is arranged in the rectangular shell 501, the horizontal plate 504 is provided with a first driving motor 29, the fixing block A28 is arranged on a motor shaft of the first driving motor 29, the other end of the arc-shaped connecting rod 26 is provided with a fixing block B27, the central position in the spherical shell 9 is provided with a first connecting rod 901, and the fixing block B27 is sleeved on the periphery of the connecting rod;

preferably, the fixed block B27 can only rotate on the connecting rod and cannot move along the length direction of the connecting rod;

the side of the fixed block B27 is provided with a second driving motor 30, the end of the motor shaft of the second driving motor 30 is provided with a driving gear 31, and the periphery of the first link 901 is fixedly provided with a driven gear 32 engaged with the driving gear 31.

An annular outer toothed ring 10 is arranged on the periphery of the middle position of the spherical shell 9, an opening corresponding to the gap 33 of the spherical shell 9 is formed in one side of the annular outer toothed ring 10, an arc-shaped sliding groove 1001 is formed in the end face of the annular outer toothed ring 10, and an arc-shaped sliding block 11 is arranged in the arc-shaped sliding groove 1001;

an inverted L-shaped mounting plate 12 penetrating through the arc-shaped opening 503 is arranged on the arc-shaped sliding block 11, the inverted L-shaped mounting plate 12 comprises a horizontal part and a vertical part, one end of the horizontal part is arranged on the arc-shaped sliding block 11, the other end of the arc-shaped sliding block 11 is far away from the spherical shell 9 and is provided with the vertical part, a third driving motor 13 is arranged on the inner side of the vertical part, and an outer ring gear 14 meshed with teeth of the annular outer tooth ring 10 is arranged at the end part of a motor shaft of the third driving motor 13;

a pipe fitting clamping mechanism 7 is arranged on the outer side of the vertical part;

the first driving motor 29 works independently (the second driving motor 30 and the third driving motor 13 are turned off), the first driving motor 29 can drive the second connecting rod and the first connecting rod 901 to rotate, so that the spherical shell 9 and the clamping mechanism are driven to rotate, the adjusting steel pipe can be driven to rotate, and the training surface of the steel pipe can be adjusted;

the second driving motor 30 works independently (the first driving motor 29 and the third driving motor 13 are turned off), the first driving motor 29 can drive the driving gear 31 and the driven gear 32 to rotate, and the driven gear 32 can drive the first connecting rod 901 and the spherical shell 9 to rotate around the driving gear 31 because the first driving motor 29 is in a fixed state at the moment, so that the spherical shell 9 and the clamping mechanism are driven to rotate, and the upward and downward inclination angles of the steel pipe are adjusted;

the third driving motor 13 works independently (the first driving motor 29 and the second driving motor 30 are closed), the third driving motor 13 can drive the outer ring gear 14 to rotate, and the clamping mechanism can rotate around the annular outer ring gear 10 through the matching of the outer ring gear 14 and the annular outer ring gear 10 because the first driving motor 29 and the second driving motor 30 are both in a fixed state at the moment, so that the horizontal position of the steel pipe is adjusted.

A plurality of fixed spherical universal wheels 16 are arranged on a side plate on one side of the U-shaped frame 15, and a plurality of mounting sleeves are arranged on the inner side of the side plate on the other side of the U-shaped frame 15 corresponding to the positions of the fixed spherical universal wheels 16;

be provided with the spherical universal wheel 17 of elasticity in the installation sleeve, be provided with spring 19 between the spherical universal wheel 17 of elasticity and the installation sleeve bottom, the fixed spherical casing 9 that sets up at the spherical universal wheel 17 of elasticity in spring 19 one end, the setting of the spring 19 other end is in installation sleeve bottom, and installation sleeve terminal surface is provided with annular baffle 18, and the shell of the spherical universal wheel 17 of elasticity supports in annular baffle 18 inboard, and the front end setting of the spherical universal wheel 17 gyro wheel of elasticity is in the annular baffle 18 outside.

The bottom of each of the plurality of mounting sleeves is provided with a through hole 20 penetrating through a side plate of the U-shaped frame 15, a vertical rod 21 is arranged in each through hole 20, one end of each vertical rod 21 is arranged in each mounting sleeve and provided with a limiting piece 23, the other end of each vertical rod 21 penetrates through each through hole 20 to be provided with a connecting plate 22, the periphery of each connecting plate 22 and the U-shaped frame 15 are provided with U-shaped mounting plates 24, each U-shaped mounting plate 24 is provided with a pushing electric cylinder 25, and the end part of an electric push rod of each pushing electric cylinder 25 penetrates through each U-shaped mounting plate 24 to be connected to each connecting plate 22;

when the steel pipe is installed, the steel pipe is inserted between the fixed spherical universal wheel 16 and the elastic spherical universal wheel 17 at present, and the bottom of the steel pipe is supported to the innermost side of the U-shaped frame 15, then the steel pipe is welded and trained according to the steel pipe, the steel pipe is rotated (the fixed spherical universal wheel 16 and the elastic spherical universal wheel 17 can work normally at the moment), the electric cylinder 25 is pushed by final control, the electric cylinder 25 is pushed to push the connecting plate 22, the limiting piece 23 is extruded on the elastic spherical universal wheel 17, the elastic spherical universal wheel 17 is tightly pushed, the fixed spherical universal wheel 16 and the elastic spherical universal wheel 17 extrude the steel pipe, clamping is realized, and meanwhile, the limiting piece 23 can limit the movement of the elastic spherical universal wheel 17.

The fixed spherical universal wheel 16 and the elastic spherical universal wheel 17 both comprise a spherical shell 9 with open upper and lower ends, and spherical rollers are arranged inside the spherical shell 9.

The upper end surfaces of the upper limiting seat 34 and the lower limiting seat 8 are cambered surfaces, a plurality of bull-eye wheels are arranged on the cambered surfaces, and the outer surface of the spherical shell 9 abuts against the spherical surfaces of the bull-eye wheels.

Set up the locating hole that runs through on the 3 both sides lateral walls of lift sleeve, a plurality of locating hole has been seted up to equidistant on the stand 2, and lift sleeve 3 and stand 2 are through inserting fixed pin 4 fixed connection of locating hole, and 15 bottom bilateral symmetry of U-shaped frame are provided with a pair of arc fagging.

When the steel pipe angle adjusting device is used, a steel pipe is inserted into the clamping mechanism, after the position of the steel pipe is adjusted, the clamping mechanism clamps and fixes the steel pipe, and then the first driving motor 29, the second driving motor 30 and the third driving motor 13 are controlled to adjust the angle of the steel pipe according to training requirements, so that effective training is performed.

The technical features of the present invention which are not described in the above embodiments may be implemented by or using the prior art, and are not described herein again, of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and variations, modifications, additions or substitutions which may be made by those skilled in the art within the spirit and scope of the present invention should also fall within the protection scope of the present invention.