CN113798773B - Pipe fitting downward welding tool - Google Patents

Pipe fitting downward welding tool Download PDF

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Publication number
CN113798773B
CN113798773B CN202111186978.8A CN202111186978A CN113798773B CN 113798773 B CN113798773 B CN 113798773B CN 202111186978 A CN202111186978 A CN 202111186978A CN 113798773 B CN113798773 B CN 113798773B
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China
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shell
spherical
shaped
connecting rod
arc
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CN202111186978.8A
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CN113798773A (en
Inventor
艾明刚
李应群
崔文斌
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Shandong Haisheng Ocean Engineering Group Co ltd
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Shandong Haisheng Ocean Engineering Group Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/04Tubular or hollow articles
    • B23K2101/06Tubes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention provides a pipe fitting downward welding tool, and belongs to the technical field of downward welding auxiliary equipment. The technical proposal is as follows: including the chassis, angle adjustment mechanism and the 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 lift sleeve, lift sleeve side is provided with the protecting crust, be provided with angle adjustment mechanism in the protecting crust, angle adjustment mechanism is including the activity setting at the inside spherical shell of protecting crust, be provided with first connecting rod between the spherical shells 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 second connecting rod free end cover is established at first connecting rod periphery, spherical shell side is provided with the L shape mounting panel that falls, the L shape mounting panel outside is provided with pipe fitting fixture that falls. The beneficial effects of the invention are as follows: simple structure, convenient to use can be applicable to the pipeline of different specifications, can multi-angle adjustment simultaneously.

Description

Pipe fitting downward welding tool
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, natural gas and petrochemical industry, the construction peak period of the long-distance pipeline in China is coming by taking the eastern gas transmission project in the West as a sign, the long-distance pipeline is increasingly developed towards the large-caliber and high-pressure transmission direction, the downward welding technology of the long-distance pipeline is introduced into China from the 60 th century, the downward welding technology of the long-distance pipeline is mature through the development of decades, the downward welding technology of the mature hand is currently provided, the semi-automatic gas shielded welding technology is being popularized, and the combination of the full-automatic gas shielded welding technology and the downward welding technology is taken as the development trend of the long-distance pipeline welding technology, and can be greatly popularized in the construction of the long-distance pipeline in China.
At present, the downward welding tool has no standard, and in order to better meet the requirements of teaching examination, particularly competition, the downward welding tool which has wide application range, safety, reliability and practicability is required to be designed, improved and manufactured.
The downward welding tool has no unified standard before, a simple tool is generally made temporarily according to the diameter of a steel pipe and technical requirements, the safety aspect of the tool has larger potential safety hazard, the problem of resource waste exists, and the downward welding tool is only suitable for temporary downward welding training of a pipe diameter welding method, and is inconvenient to adjust and uneven in style.
Disclosure of Invention
The invention aims to provide a pipe fitting downward welding tool which is simple in structure, convenient to use and capable of being suitable for pipelines of different specifications and adjusting multiple angles.
The invention is realized by the following measures:
the pipe fitting downward welding tool is characterized by comprising a bottom frame, 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 bottom frame;
the pipe fitting clamping mechanism can clamp and fix the steel pipe applied to training, and the angle adjusting mechanism can adjust the angle of the steel pipe in multiple directions, so that the training of each angle of personnel is facilitated;
the underframe comprises a base, a stand column is arranged on the base, a lifting sleeve is sleeved on the periphery of the stand column, a protecting shell is arranged on the side face of the lifting sleeve, the angle adjusting mechanism is arranged in the protecting shell, and an arc-shaped opening is formed in the side face of the protecting shell;
the integral 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;
the side surface of the spherical shell is provided with an inverted L-shaped mounting plate penetrating out of the arc-shaped opening, and the outer side of the inverted L-shaped mounting plate is provided with the pipe fitting clamping mechanism;
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 wheels and the elastic spherical universal wheels can clamp the steel pipe, and meanwhile the steel pipe body can be rotated conveniently.
The invention has the specific characteristics that:
the protection shell is in including setting up the rectangle casing of lift 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 seted up the arc opening.
The spherical shell is characterized in that an upper limit seat and a lower limit 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 limit seat and the lower limit 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 a 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 central position in the spherical shell is provided with the first connecting rod, 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;
the side of the fixed block B is provided with a second driving motor, the end part of a motor shaft of the second driving motor is provided with a driving gear, and the periphery of the first connecting rod is fixedly provided with a driven gear meshed with the driving gear.
An annular outer gear ring is arranged on the periphery of the middle position of the spherical shell, an opening corresponding to the notch of the spherical shell is formed in one side of the annular outer gear ring, an arc-shaped chute is formed in the end face of the annular outer gear ring, and an arc-shaped sliding block is arranged in the arc-shaped chute;
the arc-shaped sliding block is provided with an 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 toothed ring teeth;
the pipe clamping mechanism is arranged outside the vertical part;
the first driving motor works independently (the second driving motor and the third driving motor are closed), 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 independently works (the first driving motor and the third driving motor are closed), 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 due to the fact that 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 tilting-up angle of the steel pipe is adjusted;
the third driving motor works independently (the first driving motor and the second driving motor are closed), and the third driving motor can drive the outer ring gear to rotate.
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 elastic spherical universal wheel is arranged in the installation sleeve, a spring is arranged between the elastic spherical universal wheel and the bottom of the installation sleeve, one end of the spring is fixedly arranged on the spherical shell of the elastic spherical universal wheel, the other end of the spring is arranged at the bottom of the installation sleeve, an annular baffle is arranged on the end face of the installation sleeve, the shell of the elastic spherical universal wheel is propped against the inner side of the annular baffle, and the front end of the roller of the elastic spherical universal wheel is arranged on the outer side of the annular baffle.
The bottoms of the mounting sleeves are provided with through holes penetrating through the side plates of the U-shaped frame, the through holes are provided with vertical rods, one ends of the vertical rods are arranged inside the mounting sleeves and provided with limiting pieces, the other ends of the vertical rods penetrate through the through holes and are provided with connecting plates, the periphery of each connecting plate and the U-shaped frame are provided with U-shaped mounting plates, the U-shaped mounting plates are provided with pushing electric cylinders, and the ends of electric push rods of the pushing electric cylinders penetrate through the U-shaped mounting plates and are connected to the connecting plates;
when the steel pipe is installed, the steel pipe is inserted between the fixed spherical universal wheel and the elastic spherical universal wheel, the bottom of the steel pipe is propped against 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 wheel and the elastic spherical universal wheel can work normally), the pushing electric cylinder is controlled at last, the pushing electric cylinder pushes the connecting plate, the limiting plate is extruded on the elastic spherical universal wheel, the elastic spherical universal wheel is propped tightly, the fixed spherical universal wheel and the elastic spherical universal wheel extrude and clamp the steel pipe, and meanwhile, the limiting plate can limit the movement of the elastic spherical universal wheel body.
The fixed spherical universal wheel and the elastic spherical universal wheel comprise a spherical shell with open upper and lower ends, and spherical rollers are arranged in the spherical shell.
The upper limiting seat and the upper end face of the lower limiting seat are cambered surfaces, a plurality of bullnose wheels are arranged on the cambered surfaces, and the outer surface of the spherical shell is abutted against the spherical surfaces of the bullnose wheels.
The locating holes penetrating through the locating holes are formed in the side walls of the two sides of the lifting sleeve, a plurality of locating holes are formed in the upright posts at equal intervals, the lifting sleeve is fixedly connected with the upright posts through fixing pins inserted into the locating holes, and a pair of arc-shaped supporting plates are symmetrically arranged on the two sides of the bottom of the U-shaped frame.
When the steel pipe training device is used, the 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 beneficial effects of the invention are as follows: simple structure, convenient to use can be applicable to the pipeline of different specifications, can multi-angle adjustment simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of a pipe clamping mechanism and an angle adjusting mechanism according to an embodiment of the present invention.
Fig. 3 is a schematic view of an internal structure of a pipe clamping mechanism according to an embodiment of the present invention.
Fig. 4 is a schematic view of an internal structure of an angle adjusting mechanism according to an embodiment of the present invention.
Fig. 5 is a schematic view of an internal structure of an angle adjusting mechanism according to an embodiment of the present invention.
Fig. 6 is a schematic view showing an internal structure of the spherical shell according to the embodiment of the present invention.
Wherein, the reference numerals are as follows: 1. a base; 2. a column; 3. lifting the sleeve; 4. a fixing pin; 5. a protective shell; 501. a rectangular housing; 502. a circular housing; 503. an arc 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 toothed ring; 1001. an arc chute; 11. an arc-shaped sliding block; 12. an inverted L-shaped mounting plate; 13. a third driving motor; 14. an outer ring gear; 15. a U-shaped frame; 16. fixing a spherical universal wheel; 17. elastic spherical universal wheels; 18. a mounting sleeve; 1801. an annular baffle; 19. a spring; 20. a through hole; 21. a vertical rod; 22. a connecting plate; 23. a limiting piece; 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 driving motor; 30. a second driving motor; 31. a drive gear; 32. a driven gear; 33. a notch; 34. and an upper limit seat.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
Referring to fig. 1-6, a pipe fitting downward welding fixture comprises a bottom frame, an angle adjusting mechanism 6 and a pipe fitting clamping mechanism 7, wherein the angle adjusting mechanism 6 is arranged on the bottom frame;
the pipe fitting clamping mechanism 7 can clamp and fix the steel pipe applied to training, and the angle adjusting mechanism 6 can adjust the angle of the steel pipe in multiple directions, so that the training of each angle of personnel is facilitated;
the underframe 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 protecting shell 5 is arranged on the side surface of the lifting sleeve 3, an angle adjusting mechanism 6 is arranged in the protecting shell 5, and an arc-shaped opening 503 is formed in the side surface of the protecting 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 the 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;
the side of the spherical shell 9 is provided with an inverted L-shaped mounting plate 12 penetrating out of the arc-shaped opening 503, and the outer side of the inverted L-shaped mounting plate 12 is provided with a pipe clamping mechanism 7;
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 wheels 16 and the elastic spherical universal wheels 17 can clamp the steel pipe, and meanwhile the steel pipe body can be rotated conveniently.
The protecting shell 5 comprises a rectangular shell 501 arranged on the side surface of the lifting sleeve 3, a round shell 502 is arranged on one side of the rectangular shell 501, the rectangular shell 501 is communicated with the inside of the round shell 502, and an arc opening 503 is formed in the side surface of the round shell 502.
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 fixed block A28, a horizontal plate 504 is arranged in the rectangular shell 501, a first driving motor 29 is arranged on the horizontal plate 504, the fixed 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 fixed block B27, the central position in the spherical shell 9 is provided with a first connecting rod 901, and the fixed 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 part of the motor shaft of the second driving motor 30 is provided with a driving gear 31, and the periphery of the first connecting rod 901 is fixedly provided with a driven gear 32 meshed 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 a notch 33 of the spherical shell 9 is formed in one side of the annular outer toothed ring 10, an arc-shaped chute 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 chute 1001;
the arc-shaped sliding block 11 is provided with an inverted L-shaped mounting plate 12 penetrating out of the arc-shaped opening 503, 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, the inner side of the vertical part is provided with a third driving motor 13, and the end part of a motor shaft of the third driving motor 13 is provided with an outer ring gear 14 meshed with the annular outer toothed ring 10 in a tooth manner;
the outer side of the vertical part is provided with a pipe clamping mechanism 7;
the first driving motor 29 works independently (the second driving motor 30 and the third driving motor 13 are closed), 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, and the adjusting steel pipe can be driven to rotate, so that the training surface of the steel pipe is adjusted;
the second driving motor 30 works independently (the first driving motor 29 and the third driving motor 13 are closed), 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 at the moment because the first driving motor 29 is in a fixed state, so that the spherical shell 9 and the clamping mechanism are driven to rotate, and the tilting-up and tilting-down angles of the steel pipes 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 toothed ring 10 through the cooperation of the outer ring gear 14 and the annular outer toothed ring 10 because the first driving motor 29 and the second driving motor 30 are 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;
an elastic spherical universal wheel 17 is arranged in the mounting sleeve, a spring 19 is arranged between the elastic spherical universal wheel 17 and the bottom of the mounting sleeve, one end of the spring 19 is fixedly arranged on the spherical shell 9 of the elastic spherical universal wheel 17, the other end of the spring 19 is arranged at the bottom of the mounting sleeve, an annular baffle 18 is arranged on the end face of the mounting sleeve, the outer shell of the elastic spherical universal wheel 17 abuts against the inner side of the annular baffle 18, and the front ends of rollers of the elastic spherical universal wheel 17 are arranged on the outer side of the annular baffle 18.
The bottoms of the mounting sleeves are provided with through holes 20 penetrating through the side plates of the U-shaped frame 15, the through holes 20 are provided with vertical rods 21, one ends of the vertical rods 21 are arranged in the mounting sleeves and provided with limiting plates 23, the other ends of the vertical rods 21 penetrate through the through holes 20 and are provided with connecting plates 22, the periphery of the connecting plates 22, the U-shaped frame 15 is provided with U-shaped mounting plates 24, the U-shaped mounting plates 24 are provided with pushing electric cylinders 25, and the ends of electric push rods of the pushing electric cylinders 25 penetrate through the U-shaped mounting plates 24 and are connected to the connecting plates 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, the bottom of the steel pipe is propped against the innermost side of the U-shaped frame 15, then the steel pipe is rotated according to the welding training position of the steel pipe (both the fixed spherical universal wheel 16 and the elastic spherical universal wheel 17 can work normally at the moment), finally the pushing electric cylinder 25 is controlled, the pushing electric cylinder 25 pushes the connecting plate 22, the limiting piece 23 is extruded on the elastic spherical universal wheel 17, the elastic spherical universal wheel 17 is propped tightly, the fixed spherical universal wheel 16 and the elastic spherical universal wheel 17 extrude and clamp the steel pipe, 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 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 limit seat 34 and the lower limit seat 8 are cambered surfaces, a plurality of bullseye wheels are arranged on the cambered surfaces, and the outer surface of the spherical shell 9 abuts against the spherical surfaces of the bullseye wheels.
The locating holes penetrating the two side walls of the lifting sleeve 3 are formed in the two side walls of the lifting sleeve, a plurality of locating holes are formed in the upright post 2 at equal intervals, the lifting sleeve 3 and the upright post 2 are fixedly connected through fixing pins 4 inserted into the locating holes, and a pair of arc supporting plates are symmetrically arranged on two sides of the bottom of the U-shaped frame 15.
When the steel pipe training device is used, the steel pipe is inserted into the clamping mechanism, the clamping mechanism clamps and fixes the steel pipe after the position of the steel pipe is adjusted, 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 that are not described in the present invention may be implemented by or using the prior art, and are not described in detail herein, but the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, but is also intended to be within the scope of the present invention by those skilled in the art.

Claims (9)

1. The pipe fitting downward welding tool is characterized by comprising a bottom frame, 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 bottom frame;
the underframe comprises a base, a stand column is arranged on the base, a lifting sleeve is sleeved on the periphery of the stand column, a protecting shell is arranged on the side face of the lifting sleeve, the angle adjusting mechanism is arranged in the protecting shell, and an arc-shaped opening is formed in the side face of the protecting shell;
the protective shell comprises a rectangular shell arranged on the side surface of the lifting sleeve, a round shell is arranged on one side of the rectangular shell, the rectangular shell is communicated with the inside of the round shell, and the side surface of the round shell is provided with the arc-shaped opening;
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;
the side surface of the spherical shell is provided with an inverted L-shaped mounting plate penetrating out of the arc-shaped opening, and the outer side of the inverted L-shaped mounting plate is provided with the pipe fitting clamping mechanism;
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 an upper limit seat and a lower limit 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 limit seat and the lower limit seat.
3. The pipe fitting downward welding tool according to claim 1, wherein the second connecting rod comprises an arc connecting rod arranged in the spherical shell, one end of the arc 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 connecting rod is provided with a fixed block B, the first connecting rod is arranged in the center of the spherical shell, and the fixed block B is sleeved on the periphery of the first connecting rod;
the side of the fixed block B is provided with a second driving motor, the end part of a motor shaft of the second driving motor is provided with a driving gear, and the periphery of the first connecting rod is fixedly provided with a driven gear meshed with the driving gear.
4. 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 notch of the spherical shell is formed in one side of the annular outer toothed ring, an arc-shaped chute is formed in the end face of the annular outer toothed ring, and an arc-shaped sliding block is arranged in the arc-shaped chute;
the arc-shaped sliding block is provided with an 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 toothed ring teeth;
the pipe clamping mechanism is arranged on the outer side of the vertical part.
5. The pipe fitting downward welding tool according to claim 4, wherein a plurality of fixed spherical universal wheels are arranged on a side plate of one side of the U-shaped frame, and a plurality of mounting sleeves are arranged on the inner side of the side plate of the other side of the U-shaped frame corresponding to the positions of the fixed spherical universal wheels;
the elastic spherical universal wheel is arranged in the installation sleeve, a spring is arranged between the elastic spherical universal wheel and the bottom of the installation sleeve, one end of the spring is fixedly arranged on the spherical shell of the elastic spherical universal wheel, the other end of the spring is arranged at the bottom of the installation sleeve, an annular baffle is arranged on the end face of the installation sleeve, the shell of the elastic spherical universal wheel is propped against the inner side of the annular baffle, and the front end of the roller of the elastic spherical universal wheel is arranged on the outer side of the annular baffle.
6. The pipe fitting downward welding tool according to claim 5, wherein through holes penetrating through the side plates of the U-shaped frame are formed in the bottoms of the mounting sleeves, vertical rods are arranged in the through holes, one ends of the vertical rods are arranged in the mounting sleeves and provided with limiting pieces, a plurality of connecting plates are arranged at the other ends of the vertical rods through the through holes, the connecting plates are arranged on the periphery of the connecting plates, U-shaped frames are provided with U-shaped mounting plates, pushing electric cylinders are arranged on the U-shaped mounting plates, and the ends of electric push rods of the pushing electric cylinders penetrate through the U-shaped mounting plates to be connected to the connecting plates.
7. The pipe fitting downwelding fixture of claim 6, wherein the fixed spherical universal wheel and the elastic spherical universal wheel each comprise a spherical shell with open upper and lower ends, and spherical rollers are arranged inside the spherical shells.
8. The pipe fitting downward welding tool according to claim 2, wherein the upper end surfaces of the upper limiting seat and the lower limiting seat are cambered surfaces, a plurality of bullnose wheels are arranged on the cambered surfaces, and the outer surfaces of the spherical shells are abutted against the spherical surfaces of the bullnose wheels.
9. The pipe fitting downward welding fixture according to any one of claims 1-8, wherein the side walls of two sides of the lifting sleeve are provided with through positioning holes, the upright posts are provided with a plurality of positioning holes at equal intervals, the lifting sleeve is fixedly connected with the upright posts through fixing pins inserted into the positioning holes, and two sides of the bottom of the U-shaped frame are symmetrically provided with a pair of arc supporting plates.
CN202111186978.8A 2021-10-12 2021-10-12 Pipe fitting downward welding tool Active CN113798773B (en)

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CN202111186978.8A CN113798773B (en) 2021-10-12 2021-10-12 Pipe fitting downward welding tool

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