CN109500540B - Giant steel pipe welding machine - Google Patents

Giant steel pipe welding machine Download PDF

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Publication number
CN109500540B
CN109500540B CN201711233451.XA CN201711233451A CN109500540B CN 109500540 B CN109500540 B CN 109500540B CN 201711233451 A CN201711233451 A CN 201711233451A CN 109500540 B CN109500540 B CN 109500540B
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CN
China
Prior art keywords
plate
bottom plate
fixing
steel pipe
sliding
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Application number
CN201711233451.XA
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Chinese (zh)
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CN109500540A (en
Inventor
吴利伟
其他发明人请求不公开姓名
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JIANGSU BINGRONG PIPE Co.,Ltd.
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Jiangsu Bingrong Pipe Co ltd
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Priority to CN201711233451.XA priority Critical patent/CN109500540B/en
Publication of CN109500540A publication Critical patent/CN109500540A/en
Application granted granted Critical
Publication of CN109500540B publication Critical patent/CN109500540B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053—Auxiliary 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
    • B23K37/0531—Auxiliary 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 internal pipe alignment clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0252—Steering means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053—Auxiliary 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
    • B23K37/0533—Auxiliary 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 external pipe alignment clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A giant steel pipe welding machine comprises a base, an inner welding part, two steel pipe outer fixing parts, two inner fixing parts, an outer welding part, an outer grinding part and four steel pipe driving parts, wherein circular support columns of the inner welding part are slidably installed in two first circular holes, and two second racks are meshed with two first gears respectively; the lower surfaces of the first telescopic sleeves of the external fixed parts of the two steel pipes are fixedly arranged on the bottom plate, and the positions of the first telescopic sleeves are respectively at the lower positions above the bottom plate; the second polishing wheel is driven to reach the joints of the two steel pipes by the extension of two fourth hydraulic cylinders of the internal welding part, the second polishing wheel is driven to polish the joints of the two steel pipes by a third step motor, the first welding head is driven by the two second hydraulic cylinders to complete the welding of the internal joints of the steel pipes, the first polishing wheel is driven to contact the welded place by the extension of the four third hydraulic cylinders, and the welded place is polished smoothly by the driving of the first polishing wheel by the second step motor; the automatic welding of the interior of the steel pipe is realized, and the welding quality and the welding efficiency are improved.

Description

Giant steel pipe welding machine
Technical Field
The invention relates to the technical field of welding equipment, in particular to a giant steel pipe welding machine.
Background
When the huge steel pipe is welded, the inside and the outside are required to be welded simultaneously in order to improve the welding quality, and because the space is small, a welder cannot enter the welding process, so that a machine capable of welding the inside and the outside of the steel pipe simultaneously is required.
Disclosure of Invention
Aiming at the problems, the invention provides a giant steel pipe welding machine, wherein two fourth hydraulic cylinders of an internal welding part extend to drive a second polishing wheel to reach two steel pipe interfaces, a third stepping motor drives the second polishing wheel to polish the two steel pipe interfaces, the two second hydraulic cylinders drive a first welding head to complete welding of the internal interfaces of the steel pipes, the four third hydraulic cylinders extend to drive a first polishing wheel to contact a welded place, and the second stepping motor drives the first polishing wheel to polish the welded place smoothly; the automatic welding of the interior of the steel pipe is realized, and the welding quality and the welding efficiency are improved.
The technical scheme adopted by the invention is as follows: a giant steel pipe welding machine comprises a base, an inner welding part, two steel pipe outer fixing parts, two inner fixing parts, an outer welding part, an outer grinding part and four steel pipe driving parts, wherein circular support columns of the inner welding part are slidably installed in two first circular holes, and two second racks are meshed with two first gears respectively; the lower surfaces of the first telescopic sleeves of the external fixed parts of the two steel pipes are fixedly arranged on the bottom plate, and the positions of the first telescopic sleeves are respectively at the lower positions above the bottom plate; the two second round holes of the two internal fixing parts are respectively arranged on the two groups of second balls in a sliding manner; the two first sliding blocks of the external welding part are respectively arranged in the two second dovetail grooves which are arranged on the upper side in a sliding mode; the third gear is meshed with the first rack; the two second sliding blocks of the external polishing part are respectively arranged in the two second dovetail grooves which are arranged at the lower part in a sliding manner, and the fourth gear is meshed with the first rack; the four steel pipe driving parts are respectively arranged at four corners on the bottom plate, the two third sliding blocks are respectively arranged in the two first dovetail grooves in a sliding manner, and the steel pipe driving part of the bottom plate supporting plate is fixedly connected with the end parts of the piston rods of the two first hydraulic cylinders;
the base comprises a bottom plate, four supporting columns, first hydraulic cylinder fixing plates, eight first hydraulic cylinders, four fixing plates, eight first dovetail grooves, thirty-two first balls, four second dovetail grooves, two first racks, a bottom plate supporting plate, two supporting plates, two first round holes, two first stepping motors and two first gears, wherein the bottom plate is a rectangular plate, and the four corners of the lower surface of the bottom plate are respectively provided with one supporting column; the four corners of the upper surface of the bottom plate are respectively provided with a fixed plate, eight semicircular holes which are arrayed in two rows are arranged on the fixed plate, and the thirty-two first balls are divided into four groups and are respectively rotatably arranged in the thirty-two semicircular holes on the fixed plate; four second dovetail grooves which are evenly divided into two groups are arranged on the bottom plate, and each group is fixedly arranged in the middle of the upper surface of the bottom plate close to the front and back; two first racks are arranged on the bottom plate and are respectively positioned on the left side of each group of second dovetail grooves; four first hydraulic cylinder fixing plates are arranged on the bottom plate and positioned outside the four fixing plates; the eight first hydraulic cylinders are divided into four groups, and the bottom parts of the two first hydraulic cylinders in each group are fixedly arranged on the inner sides of the first hydraulic cylinder fixing plates; a bottom plate supporting plate is arranged in the middle of the left side of the bottom plate, the two supporting plates are fixedly arranged on the upper surface of the bottom plate supporting plate and the left side of the upper surface of the bottom plate respectively, and a first round hole is formed in the middle of each supporting plate; the two first stepping motors are vertically and downwards placed, the bottom surfaces of the two first stepping motors are fixedly arranged on the bottom plate supporting plate, and motor shafts of the two first stepping motors are respectively and fixedly connected with the two first gears;
the circular support column is slidably arranged in the two first round holes; two sides of the circular support column are respectively provided with a second rack, and the two second racks are meshed with the two first gears respectively; a second ball fixing column is arranged on the right side of the circular supporting column, twenty-four rows of semicircular grooves in a circumferential array are formed in the second ball fixing column, and twenty-four second balls are rotatably arranged in twenty-four semicircular holes in the second ball fixing column respectively; the right side of the second ball fixing column is provided with a triangular prism connecting plate, the bottoms of the cylinder bodies of the two second hydraulic cylinders are fixedly arranged on the side surface of the triangular prism connecting plate, and the end part of a piston rod of each second hydraulic cylinder is fixedly connected with the lower surface of the first welding head fixing plate; a first welding head is arranged on the first welding head fixing plate; the four third hydraulic cylinders are in a rectangular array, the bottoms of the cylinder bodies of the four third hydraulic cylinders are fixedly arranged on the side surface of the triangular prism connecting plate, the end parts of the piston rods of the four third hydraulic cylinders are fixedly connected with the upper surface of the top plate of the third hydraulic cylinder, two first polishing wheel fixing plates are arranged below the top plate of the third hydraulic cylinder, the first polishing wheels are fixedly arranged on rotating shafts on the first polishing wheel fixing plates, and the positions of the first polishing wheels are positioned between the two first polishing wheel fixing plates; the second stepping motor is horizontally arranged, the side surface of the second stepping motor is fixedly arranged below the top plate of the third hydraulic cylinder, and a motor shaft of the second stepping motor is fixedly connected with the rotating shaft of the first grinding wheel fixing plate through a coupler; the bottoms of the cylinder bodies of the two fourth hydraulic cylinders are fixedly arranged on the side surface of the triangular prism connecting plate, the end parts of piston rods of the two fourth hydraulic cylinders are fixedly connected with a top plate of the fourth hydraulic cylinder, two second grinding wheel fixing plates are arranged on the top plate of the fourth hydraulic cylinder, and the second grinding wheel connecting shafts are rotatably arranged in circular holes in the top plates of the two second grinding wheel fixing plates; the second grinding wheel is fixedly arranged on the second grinding wheel connecting shaft and is positioned between the two second grinding wheel fixing plates; the third stepping motor is horizontally arranged, the side surface of the third stepping motor is fixedly arranged on the top plate of the fourth hydraulic cylinder, and a motor shaft of the third stepping motor is fixedly connected with the second grinding wheel connecting shaft through a coupler; a second ball fixing column is arranged on the right side of the triangular prism connecting plate, twenty-four rows of semicircular grooves in a circumferential array are arranged on the second ball fixing column, and twenty-four second balls are rotatably arranged in twenty-four semicircular holes in the second ball fixing column respectively;
the steel pipe external fixing part comprises a first telescopic sleeve, a first telescopic rod, a fifth hydraulic cylinder top plate, a first rectangular groove, a sixth hydraulic cylinder top plate, a steel pipe fixing sleeve and a third dovetail groove, and the lower part of the first telescopic sleeve is fixedly arranged at a position below the bottom plate; the lower surface of the first telescopic rod is slidably arranged in the groove on the first telescopic sleeve, and the upper surface of the first telescopic rod is fixedly connected with the lower surface of the top plate of the fifth hydraulic cylinder; the bottom of the cylinder body of the fifth hydraulic cylinder is fixedly arranged on a supporting plate on the side surface of the first telescopic sleeve, and the end part of a piston rod of the fifth hydraulic cylinder is fixedly connected with the supporting plate on the side surface of the first telescopic sleeve; a first rectangular groove is formed in the top plate of the fifth hydraulic cylinder, and two third dovetail grooves are formed in the top plate of the fifth hydraulic cylinder; the bottom of the cylinder body of the sixth hydraulic cylinder is fixedly arranged on a supporting plate above the top plate of the fifth hydraulic cylinder, and the end part of a piston rod of the sixth hydraulic cylinder is fixedly connected with the top plate of the sixth hydraulic cylinder; the steel pipe fixing sleeve is fixedly arranged below the top plate of the sixth hydraulic cylinder, and two sliding blocks on the steel pipe fixing sleeve are respectively arranged in the two third dovetail grooves in a sliding manner;
the internal fixing part comprises a regular hexagon plate, a second round hole, twenty-four seventh hydraulic cylinders and six steel pipe internal fixing blocks; a second round hole is formed in the middle of the regular hexagon plate, and the second round hole is rotatably arranged on a group of second balls; the twenty-four seventh hydraulic cylinders are uniformly divided into six groups, each group of seventh hydraulic cylinders is in a rectangular array, the bottom of the cylinder body is fixedly arranged on the side surface of the regular hexagonal plate, and the end part of a piston rod is fixedly connected with the inner side of the fixed block in the steel pipe;
the external welding part comprises an external welding part bottom plate, two first sliding blocks, four positioning strips, two third racks, two fourth stepping motors, two second gears, a sliding plate, a fifth stepping motor, a third gear, a second telescopic sleeve, an eighth hydraulic cylinder, a second telescopic rod top plate, a triangular fixed seat, a steering engine connecting shaft, a second welding head fixing plate and a second welding head, wherein the external welding part bottom plate is a rectangular plate, the two first sliding blocks are arranged below the external welding part bottom plate, and the two first sliding blocks are respectively installed in two second dovetail grooves which are arranged on the external welding part bottom plate in a sliding mode; four positioning strips in a rectangular array are arranged on the bottom plate of the external welding part, and a third rack is respectively arranged on the outer sides of the two positioning strips at the back; the fifth stepping motor is horizontally arranged, the side surface of the fifth stepping motor is fixedly arranged on the bottom plate of the external welding part, and a motor shaft of the fifth stepping motor is fixedly connected with the third gear; the third gear is meshed with the first rack; the four grooves on the sliding plate are respectively arranged on the four positioning strips in a sliding manner; the two fourth stepping motors are horizontally arranged, the side surfaces of the two fourth stepping motors are fixedly arranged on the sliding plate, and motor shafts of the two fourth stepping motors are respectively and fixedly connected with the two second gears; the two second gears are meshed with the two third racks respectively; the rear surface of the second telescopic sleeve is fixedly arranged on a supporting plate on the sliding plate, one side of the second telescopic rod is slidably arranged in a groove on the side surface of the second telescopic sleeve, the other side of the second telescopic rod is provided with a second telescopic rod top plate, a triangular fixed seat is arranged on the second telescopic rod top plate, the steering engine connecting shaft is rotatably arranged in a semicircular hole of the triangular fixed seat, the second welding head fixing plate is fixedly arranged on the steering engine connecting shaft, the steering engine is horizontally arranged, the side surface of the steering engine is fixedly arranged on the side surface of the triangular fixed seat, and a motor shaft of the steering engine connecting shaft is fixedly connected with; the second welding head is fixedly arranged on the second welding head fixing plate;
the external grinding part comprises an external grinding part bottom plate, two second sliding blocks, an external grinding part bottom plate supporting plate, two fourth dovetail grooves, a fourth gear, a sixth stepping motor, a fourth rack, a sliding sleeve, a seventh stepping motor, a fifth gear, a sliding sleeve supporting plate, a second rectangular groove, two ninth hydraulic cylinders, a sliding plate, two tenth hydraulic cylinders, a Z-shaped plate, an eighth stepping motor, a third grinding wheel seat, a third grinding wheel and a third grinding wheel shaft, wherein the external grinding part bottom plate is a rectangular plate, the two second sliding blocks are arranged below the external grinding part bottom plate, and the two second sliding blocks are respectively installed in the two second dovetail grooves below the external grinding part bottom plate in a sliding mode; the sixth stepping motor is horizontally arranged, the side surface of the sixth stepping motor is fixedly arranged on the external polishing part bottom plate, the motor shaft of the sixth stepping motor is fixedly connected with a fourth gear, and the fourth gear is meshed with the first rack; an external grinding part bottom plate supporting plate is arranged on the external grinding part bottom plate, two fourth dovetail grooves are formed in the inner side of the external grinding part bottom plate supporting plate, and a fourth rack is arranged on the outer side of the external grinding part bottom plate supporting plate; the sliding sleeve is arranged on the external grinding part bottom plate supporting plate in a sliding mode, and the two sliding blocks in the sliding sleeve are arranged in the two fourth dovetail grooves in a sliding mode respectively; the seventh stepping motor is horizontally arranged, the side surface of the seventh stepping motor is fixedly arranged outside the sliding sleeve, and a motor shaft of the seventh stepping motor is fixedly connected with the fifth gear; the fifth gear is meshed with the fourth rack; the sliding sleeve supporting plate is fixedly arranged on the inner side of the sliding sleeve, the bottoms of the cylinder bodies of the two ninth hydraulic cylinders are fixedly arranged on the supporting plate above the sliding sleeve supporting plate, and the end parts of the piston rods of the two ninth hydraulic cylinders are fixedly connected with the supporting plate above the sliding plate; a second rectangular groove is formed in the upper surface of the sliding sleeve supporting plate, and a dovetail groove is formed in each of the left side and the right side of the upper surface of the sliding sleeve supporting plate; the two sliding blocks below the sliding plate are respectively installed in the two dovetail grooves on the sliding sleeve supporting plate in a sliding mode; the bottoms of the cylinder bodies of the two tenth hydraulic cylinders are fixedly arranged on the sliding plate, and the end parts of the pistons of the tenth hydraulic cylinders are fixedly connected with the outer side of the Z-shaped plate; the Z-shaped plate is slidably arranged in a groove in the middle of the sliding plate; a third grinding wheel seat is arranged below the Z-shaped plate, a third grinding wheel shaft is rotatably arranged in a circular hole of the third grinding wheel seat, the eighth stepping motor is horizontally arranged, the side surface of the eighth stepping motor is fixedly arranged on the side surface of the third grinding wheel seat, and a motor shaft of the eighth stepping motor is fixedly connected with the third grinding wheel shaft through a coupling; the third grinding wheel is fixedly arranged on a third grinding wheel shaft and is positioned in a third grinding wheel seat;
the steel pipe driving part comprises a steel pipe driving part bottom plate, two third sliding blocks, two semicircular grooves, three driving wheel supporting plates, two driving wheels, an eighth stepping motor and a steel pipe driving part bottom plate supporting plate, wherein the steel pipe driving part bottom plate is a rectangular plate, the two semicircular grooves are formed in the lower surface of the steel pipe driving part bottom plate, and the two semicircular grooves are slidably mounted on the eight first balls; two third sliding blocks are arranged below the steel pipe driving part bottom plate and are respectively installed in the two first dovetail grooves in a sliding mode; three driving wheel supporting plates are arranged on the steel pipe driving part bottom plate; a rotating shaft is arranged in a circular hole on the driving wheel supporting plate, and the two driving wheels are fixedly arranged on the rotating shaft in the circular hole of the driving wheel supporting plate and positioned between the three driving wheel supporting plates; the eighth stepping motor is horizontally arranged, the side surface of the eighth stepping motor is fixedly arranged on the steel pipe driving part bottom plate, and a motor shaft of the eighth stepping motor is fixedly connected with a rotating shaft in the circular hole of the driving wheel supporting plate; the steel pipe drives the partial bottom plate supporting plate, and the partial bottom plate supporting plate is fixedly connected with the end part of the piston rod of the first hydraulic cylinder.
The invention has the beneficial effects that: the second polishing wheel is driven to reach the joints of the two steel pipes by the extension of two fourth hydraulic cylinders of the internal welding part, the second polishing wheel is driven to polish the joints of the two steel pipes by a third step motor, the first welding head is driven by the two second hydraulic cylinders to complete the welding of the internal joints of the steel pipes, the first polishing wheel is driven to contact the welded place by the extension of the four third hydraulic cylinders, and the welded place is polished smoothly by the driving of the first polishing wheel by the second step motor; the automatic welding of the interior of the steel pipe is realized, and the welding quality and the welding efficiency are improved.
Drawings
Fig. 1, 2 and 3 are schematic overall structural diagrams of the present invention.
Fig. 4 and 5 are schematic structural views of the base of the present invention.
Fig. 6, 7, 8 and 9 are schematic structural views of an inner welding part according to the present invention.
Fig. 10 and 11 are schematic structural views of the outer fixing portion of the steel pipe of the present invention.
Fig. 12 is a schematic structural view of an internal fixing portion of the present invention.
Fig. 13 and 14 are schematic structural views of an external welding portion according to the present invention.
Fig. 15 and 16 are schematic structural views of an external grinding part according to the present invention.
FIG. 17 and FIG. 18 are schematic structural views of the steel tube driving part of the present invention
Reference numerals: 1-base, 2-internal welding part, 3-steel pipe external fixing part, 4-internal fixing part, 5-external welding part, 6-external grinding part, 7-steel pipe driving part, 101-base plate, 102-supporting column, 103-first hydraulic cylinder fixing plate, 104-first hydraulic cylinder, 105-fixing plate, 106-first dovetail groove, 107-first ball, 108-second dovetail groove, 109-first rack, 110-base plate supporting plate, 111-supporting plate, 112-first round hole, 113-first stepping motor, 114-first gear, 201-round supporting column, 202-second rack, 203-second ball fixing column, 204-second ball, 205-triangular prism connecting plate, etc, 206-a second hydraulic cylinder, 207-a first welding joint fixing plate, 208-a first welding joint, 209-a third hydraulic cylinder, 210-a third hydraulic cylinder top plate, 211-a first polishing wheel, 212-a first polishing wheel fixing plate, 213-a second stepping motor, 214-a fourth hydraulic cylinder, 215-a fourth hydraulic cylinder top plate, 216-a second polishing wheel connecting shaft, 217-a second polishing wheel, 218-a third stepping motor, 219-a second polishing wheel fixing plate, 301-a first telescopic sleeve, 302-a first telescopic rod, 303-a fifth hydraulic cylinder, 304-a fifth hydraulic cylinder top plate, 305-a first rectangular groove, 306-a sixth hydraulic cylinder, 307-a sixth hydraulic cylinder top plate, 308-a steel pipe fixing sleeve, 309-a third dovetail groove, 401-a regular hexagon plate, 402-a second round hole, 403-a seventh hydraulic cylinder, 404-a steel pipe internal fixing block, 501-an external welding part bottom plate, 502-a first sliding block, 503-a positioning bar, 504-a third rack, 505-a fourth stepping motor, 506-a second gear, 507-a sliding plate, 508-a fifth stepping motor, 509-a third gear, 510-a second telescopic sleeve, 511-an eighth hydraulic cylinder, 512-a second telescopic rod, 513-a second telescopic rod top plate, 514-a triangular fixing seat, 515-a steering engine, 516-a steering engine connecting shaft, 517-a second welding head fixing plate, 518-a second welding head, 601-an external grinding part bottom plate, 602-a second sliding block, 603-an external grinding part bottom plate supporting plate, 604-a fourth dovetail groove, a dovetail groove, 605-a fourth gear, 606-a sixth stepping motor, 607-a fourth rack, 608-a sliding sleeve, 609-a seventh stepping motor, 610-a fifth gear, 611-a sliding sleeve supporting plate, 612-a second rectangular groove, 613-a ninth hydraulic cylinder, 614-a sliding plate, 615-a tenth hydraulic cylinder, 616-a Z-shaped plate, 617-an eighth stepping motor, 618-a third grinding wheel seat, 619-a third grinding wheel, 620-a third grinding wheel shaft, 701-a steel pipe driving part bottom plate, 702-a third sliding block, 703-a semicircular groove, 704-a driving wheel supporting plate, 705-a driving wheel, 706-an eighth stepping motor and 707-a steel pipe driving part bottom plate supporting plate.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
For example, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, fig. 13, fig. 14, fig. 15, fig. 16, fig. 17, and fig. 18, a welding machine for huge steel pipes includes a base 1, an inner welding portion 2, two steel pipe outer fixing portions 3, two inner fixing portions 4, an outer welding portion 5, an outer grinding portion 6, and four steel pipe driving portions 7, wherein a circular supporting column 201 of the inner welding portion 2 is slidably installed in two first circular holes 112, and two second racks 202 are respectively engaged with two first gears 114; the lower surfaces of the first telescopic sleeves 301 of the two steel pipe external fixing parts 3 are fixedly arranged on the bottom plate 101, and the positions of the lower surfaces of the two steel pipe external fixing parts are respectively at the lower positions on the bottom plate 101; the two second circular holes 402 of the two inner fixing parts 4 are respectively slidably mounted on the two groups of second balls 204; the two first sliding blocks 502 of the external welding part 5 are respectively and slidably mounted in the two second dovetail grooves 108; the third gear 509 is intermeshed with the first rack 109; the two second sliding blocks 602 of the external grinding part 6 are respectively and slidably mounted in the two second dovetail grooves 108 at the lower part, and the fourth gear 605 is meshed with the first rack 109; the four steel pipe driving parts 7 are respectively arranged at four corners on the bottom plate 101, the two third sliding blocks 702 are respectively arranged in the two first dovetail grooves 106 in a sliding manner, and the steel pipe driving part bottom plate supporting plate 707 is fixedly connected with the end parts of the piston rods of the two first hydraulic cylinders 104;
the base 1 comprises a bottom plate 101, four supporting columns 102, a first hydraulic cylinder fixing plate 103, eight first hydraulic cylinders 104, four fixing plates 105, eight first dovetail grooves 106, thirty-two first ball bearings 107, four second dovetail grooves 108, two first racks 109, a bottom plate supporting plate 110, two supporting plates 111, two first circular holes 112, two first stepping motors 113 and two first gears 114, wherein the bottom plate 101 is a rectangular plate, and the four corners of the lower surface of the bottom plate are respectively provided with one supporting column 102; four corners on the bottom plate 101 are respectively provided with a fixing plate 105, eight semicircular holes which are arrayed in two rows are arranged on the fixing plate 105, and the thirty-two first balls 107 are divided into four groups and are respectively rotatably arranged in the thirty-two semicircular holes on the fixing plate 105; four second dovetail grooves 108 which are evenly divided into two groups are arranged on the bottom plate 101, and each group is fixedly arranged in the middle of the upper surface of the bottom plate 101 close to the front and close to the rear; two first racks 109 are arranged on the bottom plate 101, and the positions of the two first racks are respectively arranged on the left side of each group of second dovetail grooves 108; four first hydraulic cylinder fixing plates 103 are arranged on the bottom plate 101 and are positioned outside the four fixing plates 105; the eight first hydraulic cylinders 104 are divided into four groups, and the bottom parts of the two first hydraulic cylinders 104 in each group are fixedly arranged on the inner side of the first hydraulic cylinder fixing plate 103; a bottom plate supporting plate 110 is arranged in the middle of the left side of the bottom plate 101, the two supporting plates 111 are respectively and fixedly arranged on the upper surface of the bottom plate supporting plate 110 and the left side of the upper surface of the bottom plate 101, and a first round hole 112 is arranged in the middle of the supporting plates 111; the two first stepping motors 113 are vertically and downwardly arranged, the bottom surfaces of the two first stepping motors are fixedly arranged on the bottom plate supporting plate 110, and motor shafts of the two first stepping motors are respectively and fixedly connected with the two first gears 114;
the circular supporting column 201, the two second racks 202, the two second ball fixing columns 203, the forty-eight second balls 204, the triangular prism connecting plate 205, the two second hydraulic cylinders 206, the first welding head fixing plate 207, the first welding head 208, the four third hydraulic cylinders 209, the third hydraulic cylinder top plate 210, the first polishing wheel 211, the first polishing wheel fixing plate 212, the second stepping motor 213, the two fourth hydraulic cylinders 214, the fourth hydraulic cylinder top plate 215, the second polishing wheel connecting shaft 216, the second polishing wheel 217, the third stepping motor 218 and the two second polishing wheel fixing plates 219 are slidably mounted in the two first circular holes 112; two sides of the circular support column 201 are respectively provided with a second rack 202, and the two second racks 202 are respectively meshed with the two first gears 114; a second ball fixing column 203 is arranged on the right side of the circular supporting column 201, twenty-four semicircular grooves which are in two rows and are in a circumferential array are formed in the second ball fixing column 203, and twenty-four second balls 204 are rotatably arranged in twenty-four semicircular holes in the second ball fixing column 203 respectively; a triangular prism connecting plate 205 is arranged on the right side of the second ball fixing column 203, the bottoms of the two second hydraulic cylinders 206 are fixedly arranged on the side surface of the triangular prism connecting plate 205, and the end parts of piston rods of the two second hydraulic cylinders are fixedly connected with the lower surface of the first welding head fixing plate 207; a first welding head 208 is arranged on the first welding head fixing plate 207; the four third hydraulic cylinders 209 are in a rectangular array, the bottoms of the cylinder bodies of the four third hydraulic cylinders 209 are fixedly arranged on the side surface of the triangular prism connecting plate 205, the end parts of the piston rods of the four third hydraulic cylinders are fixedly connected with the upper surface of a third hydraulic cylinder top plate 210, two first polishing wheel fixing plates 212 are arranged below the third hydraulic cylinder top plate 210, and the first polishing wheels 211 are fixedly arranged on rotating shafts on the first polishing wheel fixing plates 212 and positioned between the two first polishing wheel fixing plates 212; the second stepping motor 213 is horizontally arranged, the side surface of the second stepping motor is fixedly arranged below the top plate 210 of the third hydraulic cylinder, and the motor shaft of the second stepping motor is fixedly connected with the rotating shaft of the first grinding wheel fixing plate 212 through a coupler; the bottoms of the cylinder bodies of the two fourth hydraulic cylinders 214 are fixedly arranged on the side surface of the triangular prism connecting plate 205, the end parts of piston rods of the two fourth hydraulic cylinders are fixedly connected with a fourth hydraulic cylinder top plate 215, two second grinding wheel fixing plates 219 are arranged on the fourth hydraulic cylinder top plate 215, and the second grinding wheel connecting shafts 216 are rotatably arranged in circular holes in the two second grinding wheel fixing plates 219; the second grinding wheel 217 is fixedly arranged on the second grinding wheel connecting shaft 216 and is positioned between the two second grinding wheel fixing plates 219; the third stepping motor 218 is horizontally arranged, the side surface of the third stepping motor is fixedly arranged on the top plate 215 of the fourth hydraulic cylinder, and the motor shaft of the third stepping motor is fixedly connected with the second grinding wheel connecting shaft 216 through a coupler; a second ball fixing column 203 is arranged on the right side of the triangular prism connecting plate 205, twenty-four semicircular grooves which are in two rows and are in a circumferential array are arranged on the second ball fixing column 203, and twenty-four second balls 204 are rotatably arranged in twenty-four semicircular holes on the second ball fixing column 203 respectively;
the steel pipe external fixing part 3 comprises a first telescopic sleeve 301, a first telescopic rod 302, a fifth hydraulic cylinder 303, a fifth hydraulic cylinder top plate 304, a first rectangular groove 305, a sixth hydraulic cylinder 306, a sixth hydraulic cylinder top plate 307, a steel pipe fixing sleeve 308 and a third dovetail groove 309, and the lower surface of the first telescopic sleeve 301 is fixedly arranged at a position below the upper surface of the bottom plate 101; the lower surface of the first telescopic rod 302 is slidably mounted in a groove on the first telescopic sleeve 301, and the upper surface of the first telescopic rod is fixedly connected with the lower surface of a fifth hydraulic cylinder top plate 304; the bottom of the cylinder body of the fifth hydraulic cylinder 303 is fixedly arranged on a supporting plate on the side surface of the first telescopic sleeve 301, and the end part of a piston rod of the fifth hydraulic cylinder is fixedly connected with a supporting plate on the side surface of the first telescopic rod 302; a first rectangular groove 305 is formed in the fifth hydraulic cylinder top plate 304, and two third dovetail grooves 309 are formed in the fifth hydraulic cylinder top plate 304; the bottom of the cylinder body of the sixth hydraulic cylinder 306 is fixedly arranged on a support plate above the top plate 304 of the fifth hydraulic cylinder, and the end part of a piston rod of the sixth hydraulic cylinder is fixedly connected with the top plate 307 of the sixth hydraulic cylinder; the steel pipe fixing sleeve 308 is fixedly arranged below the sixth hydraulic cylinder top plate 307, and two sliding blocks on the steel pipe fixing sleeve are respectively arranged in two third dovetail grooves 309 in a sliding manner;
the internal fixing part 4 comprises a regular hexagon plate 401, a second round hole 402, twenty-four seventh hydraulic cylinders 403 and six steel pipe internal fixing blocks 404; a second round hole 402 is formed in the middle of the regular hexagonal plate 401, and the second round hole 402 is rotatably mounted on the group of second balls 204; the twenty-four seventh hydraulic cylinders 403 are divided into six groups, each group of seventh hydraulic cylinders 403 is in a rectangular array, the bottoms of the cylinder bodies are fixedly arranged on the side surfaces of the regular hexagonal plates 401, and the end parts of the piston rods are fixedly connected with the inner sides of the fixing blocks 404 in the steel pipes;
the external welding part 5 comprises an external welding part bottom plate 501, two first sliding blocks 502, four positioning bars 503, two third racks 504, two fourth stepping motors 505, two second gears 506, a sliding plate 507, a fifth stepping motor 508, a third gear 509, a second telescopic sleeve 510, an eighth hydraulic cylinder 511, a second telescopic rod 512, a second telescopic rod top plate 513, a triangular fixing seat 514, a steering engine 515, a steering engine connecting shaft 516, a second welding head fixing plate 517 and a second welding head 518, wherein the external welding part bottom plate 501 is a rectangular plate, the two first sliding blocks 502 are arranged below the external welding part bottom plate, and the two first sliding blocks 502 are respectively installed in two second dovetail grooves 108 which are arranged on the external welding part bottom plate in a sliding manner; four rectangular positioning bars 503 are arranged on the external welding part bottom plate 501, and a third rack 504 is arranged on the outer sides of the two rear positioning bars 503; the fifth stepping motor 508 is horizontally arranged, the side surface of the fifth stepping motor is fixedly arranged on the bottom plate 501 of the external welding part, and the motor shaft of the fifth stepping motor is fixedly connected with a third gear 509; the third gear 509 is meshed with the first rack 109; the four grooves on the sliding plate 507 are respectively arranged on the four positioning bars 503 in a sliding manner; the two fourth stepping motors 505 are horizontally arranged, the side surfaces thereof are fixedly arranged on the sliding plate 507, and the motor shafts thereof are respectively and fixedly connected with the two second gears 506; the two second gears 506 are respectively meshed with the two third racks 504; the rear surface of the second telescopic sleeve 510 is fixedly arranged on a supporting plate on the sliding plate 507, one side of the second telescopic rod 512 is slidably arranged in a groove on the side surface of the second telescopic sleeve 510, the other side of the second telescopic rod is provided with a second telescopic rod top plate 513, a triangular fixing seat 514 is arranged on the second telescopic rod top plate 513, a steering engine connecting shaft 516 is rotatably arranged in a semicircular hole of the triangular fixing seat 514, a second welding head fixing plate 517 is fixedly arranged on the steering engine connecting shaft 516, the steering engine 515 is horizontally arranged, the side surface of the steering engine 515 is fixedly arranged on the side surface of the triangular fixing seat 514, and a motor shaft of the steering engine connecting shaft 516 is fixedly connected; the second welding head 518 is fixedly mounted on the second welding head fixing plate 517;
the external grinding part 6 comprises an external grinding part bottom plate 601, two second sliding blocks 602, an external grinding part bottom plate supporting plate 603, two fourth dovetail grooves 604, a fourth gear 605, a sixth stepping motor 606, a fourth rack 607, a sliding sleeve 608, a seventh stepping motor 609, a fifth gear 610, a sliding sleeve supporting plate 611, a second rectangular groove 612, two ninth hydraulic cylinders 613, a sliding plate 614, two tenth hydraulic cylinders 615, a Z-shaped plate 616, an eighth stepping motor 617, a third grinding wheel seat 618, a third grinding wheel 619 and a third grinding wheel shaft 620, wherein the external grinding part bottom plate 601 is a rectangular plate, the two second sliding blocks 602 are arranged below the rectangular plate, and the two second sliding blocks 602 are respectively slidably mounted in the two second dovetail grooves 108 below; the sixth stepping motor 606 is horizontally arranged, the side surface of the sixth stepping motor is fixedly arranged on the external grinding part bottom plate 601, the motor shaft of the sixth stepping motor is fixedly connected with a fourth gear 605, and the fourth gear 605 is meshed with the first rack 109; an external grinding part bottom plate supporting plate 603 is arranged on the external grinding part bottom plate 601, two fourth dovetail grooves 604 are arranged on the inner side of the external grinding part bottom plate supporting plate 603, and a fourth rack 607 is arranged on the outer side of the external grinding part bottom plate supporting plate 603; the sliding sleeve 608 is slidably mounted on the external polishing part bottom plate supporting plate 603, and two sliding blocks in the sliding sleeve 608 are slidably mounted in the two fourth dovetail grooves 604 respectively; the seventh stepping motor 609 is horizontally arranged, the side surface of the seventh stepping motor 609 is fixedly arranged outside the sliding sleeve 608, and the motor shaft of the seventh stepping motor is fixedly connected with the fifth gear 610; the fifth gear 610 is meshed with the fourth rack 607; the sliding sleeve support plate 611 is fixedly installed inside the sliding sleeve 608, the bottom of the cylinder body of the two ninth hydraulic cylinders 613 is fixedly installed on the support plate above the sliding sleeve support plate 611, and the end of the piston rod is fixedly connected with the support plate above the sliding plate 614; a second rectangular groove 612 is arranged on the sliding sleeve support plate 611, and a dovetail groove is respectively arranged on the left side and the right side of the sliding sleeve support plate 611; the two sliding blocks below the sliding plate 614 are respectively arranged in the two dovetail grooves above the sliding sleeve supporting plate 611 in a sliding manner; the bottoms of the cylinder bodies of the two tenth hydraulic cylinders 615 are fixedly arranged on the sliding plate 614, and the ends of the pistons of the two tenth hydraulic cylinders 615 are fixedly connected with the outer side of the Z-shaped plate 616; z-shaped plate 616 is slidably mounted in a groove in the middle of sliding plate 614; a third grinding wheel seat 618 is arranged below the Z-shaped plate 616, a third grinding wheel shaft 620 is rotatably arranged in a circular hole of the third grinding wheel seat 618, the eighth stepping motor 617 is horizontally arranged, the side surface of the eighth stepping motor is fixedly arranged on the side surface of the third grinding wheel seat 618, and a motor shaft of the eighth stepping motor is fixedly connected with the third grinding wheel shaft 620 through a coupling; the third grinding wheel 619 is fixedly installed on a third grinding wheel shaft 620 and is positioned in the third grinding wheel seat 618;
the steel pipe driving part 7 comprises a steel pipe driving part bottom plate 701, two third sliders 702, two semicircular grooves 703, three driving wheel support plates 704, two driving wheels 705, an eighth stepping motor 706 and a steel pipe driving part bottom plate support plate 707, the steel pipe driving part bottom plate 701 is a rectangular plate, the two semicircular grooves 703 are arranged on the lower surface of the rectangular plate, and the two semicircular grooves 703 are slidably mounted on the eight first balls 107; two third sliding blocks 702 are arranged below the steel pipe driving part bottom plate 701, and the two third sliding blocks 702 are respectively installed in the two first dovetail grooves 106 in a sliding manner; three driving wheel support plates 704 are arranged on the steel pipe driving part bottom plate 701; a rotating shaft is arranged in a circular hole on the driving wheel support plate 704, and the two driving wheels 705 are fixedly arranged on the rotating shaft in the circular hole of the driving wheel support plate 704 and are positioned among the three driving wheel support plates 704; the eighth stepping motor 706 is horizontally arranged, the side surface of the eighth stepping motor is fixedly arranged on the steel pipe driving part bottom plate 701, and a motor shaft of the eighth stepping motor is fixedly connected with a rotating shaft in a circular hole of the driving wheel supporting plate 704; a steel pipe driving part bottom plate supporting plate 707 is arranged on the steel pipe driving part bottom plate 701, and the steel pipe driving part bottom plate supporting plate 707 is fixedly connected with the end part of the piston rod of the first hydraulic cylinder 104.
The working principle of the invention is as follows: when the steel pipe fixing device is used, firstly, two steel pipes are horizontally arranged and placed in the middle position on the bottom plate 101, the four steel pipe driving parts 7 are pushed forwards by the extension of the four groups of eight first hydraulic cylinders 104, the two steel pipes are supported by the four groups of eight driving wheels 705, and the steel pipe fixing sleeve 308 is driven to press the steel pipes by the cooperative work of the fifth hydraulic cylinder 303 and the two sixth hydraulic cylinders 306 of the two steel pipe external fixing parts 3; next, two first gears 114 are driven by two first stepping motors 113 to drive the internal welding part 2 to move to the interface between the two steel pipes, forty-eight seventh hydraulic cylinders 403 of two internal fixing parts 4 extend to drive twelve internal steel pipe fixing blocks 404 to be fixed inside the two steel pipes, next, eight driving wheels 705 are driven by four eighth stepping motors 706 to rotate to drive the two steel pipes to rotate in the same direction, meanwhile, two fourth hydraulic cylinders 214 of the internal welding part 2 extend to drive the second polishing wheels 217 to reach the interface between the two steel pipes, a third stepping motor 218 drives the second polishing wheels 217 to polish the interface between the two steel pipes, next, two second hydraulic cylinders 206 drive the first welding head 208 to complete the welding of the internal interface between the steel pipes, next, four third hydraulic cylinders 209 extend to drive the first polishing wheels 211 to contact the welded place, the first polishing wheel 211 is driven by a second stepping motor 213 to polish the welded part smoothly; meanwhile, the sixth stepping motor 606 of the external grinding part 6 drives the fourth gear 605 to drive the external grinding part 6 to reach the upper part of the steel pipe, the seventh stepping motor 609, the two ninth hydraulic cylinders 613 and the two tenth hydraulic cylinders 615 work cooperatively to enable the third grinding wheel 619 to be positioned at the external interface of the two steel pipes, and the eighth stepping motor 617 drives the third grinding wheel 619 to grind; next, the fifth stepping motor 508 of the external welding part 5 drives the third gear 509 to drive the external welding part 5 to move outside the steel pipe, the two fourth stepping motors 505 drive the two second gears 506 to drive the second welding head 518 to move upwards, and the eighth hydraulic cylinder 511 and the steering engine 515 cooperate to adjust the position of the second welding head 518 to complete welding.
In the description of the present invention, it is to be noted that the terms "upper", "lower", "front", "rear"),
The references to "left", "right", etc. are based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which the products of the invention are conventionally placed in use, and are only for convenience of describing and simplifying the invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Claims (1)

1. A giant steel pipe welding machine comprises a base (1), an inner welding part (2), two steel pipe outer fixing parts (3), two inner fixing parts (4), an outer welding part (5), an outer grinding part (6) and four steel pipe driving parts (7), wherein a circular support column (201) of the inner welding part (2) is slidably mounted in two first circular holes (112), and two second racks (202) are meshed with two first gears (114) respectively; the lower surfaces of the first telescopic sleeves (301) of the two steel pipe external fixing parts (3) are fixedly arranged on the bottom plate (101), and the positions of the lower parts are respectively arranged at the lower positions on the bottom plate (101); the two second round holes (402) of the two inner fixing parts (4) are respectively arranged on the two groups of second balls (204) in a sliding way; two first sliding blocks (502) of the external welding part (5) are respectively arranged in two second dovetail grooves (108) which are arranged on the upper side in a sliding mode; the third gear (509) is meshed with the first rack (109); two second sliding blocks (602) of the external grinding part (6) are respectively arranged in two second dovetail grooves (108) at the lower part in a sliding mode, and a fourth gear (605) is meshed with the first rack (109); the four steel pipe driving parts (7) are respectively arranged at four corners on the bottom plate (101), the two third sliding blocks (702) are respectively arranged in the two first dovetail grooves (106) in a sliding manner, and the steel pipe driving part of the bottom plate supporting plate (707) is fixedly connected with the end parts of the piston rods of the two first hydraulic cylinders (104);
the base (1) comprises a bottom plate (101), four supporting columns (102), a first hydraulic cylinder fixing plate (103), eight first hydraulic cylinders (104), four fixing plates (105), eight first dovetail grooves (106), thirty-two first ball bearings (107), four second dovetail grooves (108), two first racks (109), a bottom plate supporting plate (110), two supporting plates (111), two first round holes (112), two first stepping motors (113) and two first gears (114), wherein the bottom plate (101) is a rectangular plate, and the four corners of the lower surface of the bottom plate are respectively provided with one supporting column (102); the four corners on the bottom plate (101) are respectively provided with a fixing plate (105), eight semicircular holes which are arrayed in two rows are arranged on the fixing plate (105), and the thirty-two first balls (107) are divided into four groups and are respectively rotatably arranged in the thirty-two semicircular holes on the fixing plate (105); four second dovetail grooves (108) which are divided into two groups are arranged on the bottom plate (101), and each group is fixedly arranged at the front and back parts of the middle of the top of the bottom plate (101); two first racks (109) are arranged on the bottom plate (101) and are respectively positioned on the left side of each group of second dovetail grooves (108); four first hydraulic cylinder fixing plates (103) are arranged on the bottom plate (101) and are positioned outside the four fixing plates (105); the eight first hydraulic cylinders (104) are divided into four groups, and the bottom parts of the two first hydraulic cylinders (104) in each group are fixedly arranged on the inner side of the first hydraulic cylinder fixing plate (103); a bottom plate supporting plate (110) is arranged in the middle of the left side of the bottom plate (101), the two supporting plates (111) are respectively and fixedly arranged on the upper surface of the bottom plate supporting plate (110) and the left side of the upper surface of the bottom plate (101), and a first round hole (112) is arranged in the middle of the supporting plates (111); the two first stepping motors (113) are vertically and downwards placed, the bottom surfaces of the two first stepping motors are fixedly arranged on the bottom plate supporting plate (110), and motor shafts of the two first stepping motors are respectively and fixedly connected with the two first gears (114);
the grinding machine comprises a circular supporting column (201), two second racks (202), two second ball fixing columns (203), forty-eight second balls (204), a triangular prism connecting plate (205), two second hydraulic cylinders (206), a first welding head fixing plate (207), a first welding head (208), four third hydraulic cylinders (209), a third hydraulic cylinder top plate (210), a first grinding wheel (211), a first grinding wheel fixing plate (212), a second stepping motor (213), two fourth hydraulic cylinders (214), a fourth hydraulic cylinder top plate (215), a second grinding wheel connecting shaft (216), a second grinding wheel (217), a third stepping motor (218) and two second grinding wheel fixing plates (219), wherein the circular supporting column (201) is slidably mounted in two first round holes (112); two sides of the circular support column (201) are respectively provided with a second rack (202), and the two second racks (202) are respectively meshed with the two first gears (114); a second ball fixing column (203) is arranged on the right side of the circular supporting column (201), twenty-four semicircular grooves which are in two rows and are in a circumferential array are formed in the second ball fixing column (203), and twenty-four second balls (204) are rotatably arranged in twenty-four semicircular holes in the second ball fixing column (203) respectively; a triangular prism connecting plate (205) is arranged on the right side of the second ball fixing column (203), the bottoms of the cylinder bodies of the two second hydraulic cylinders (206) are fixedly arranged on the side surface of the triangular prism connecting plate (205), and the end parts of piston rods of the two second hydraulic cylinders are fixedly connected with the lower surface of the first welding head fixing plate (207); a first welding head (208) is arranged on the first welding head fixing plate (207); the four third hydraulic cylinders (209) are in a rectangular array, the bottoms of the cylinder bodies of the four third hydraulic cylinders are fixedly arranged on the side surface of the triangular prism connecting plate (205), the end parts of piston rods of the four third hydraulic cylinders are fixedly connected with the upper surface of a top plate (210) of the third hydraulic cylinder, two first polishing wheel fixing plates (212) are arranged below the top plate (210) of the third hydraulic cylinder, and the first polishing wheels (211) are fixedly arranged on rotating shafts on the first polishing wheel fixing plates (212) and positioned between the two first polishing wheel fixing plates (212); the second stepping motor (213) is horizontally arranged, the side surface of the second stepping motor is fixedly arranged below the top plate (210) of the third hydraulic cylinder, and a motor shaft of the second stepping motor is fixedly connected with a rotating shaft of the first grinding wheel fixing plate (212) through a coupler; the bottoms of the cylinder bodies of the two fourth hydraulic cylinders (214) are fixedly arranged on the side surface of the triangular prism connecting plate (205), the end parts of piston rods of the two fourth hydraulic cylinders are fixedly connected with a fourth hydraulic cylinder top plate (215), two second grinding wheel fixing plates (219) are arranged on the fourth hydraulic cylinder top plate (215), and second grinding wheel connecting shafts (216) are rotatably arranged in circular holes in the two second grinding wheel fixing plates (219); the second grinding wheel (217) is fixedly arranged on the second grinding wheel connecting shaft (216) and is positioned between the two second grinding wheel fixing plates (219); the third stepping motor (218) is horizontally arranged, the side surface of the third stepping motor is fixedly arranged on a fourth hydraulic cylinder top plate (215), and a motor shaft of the third stepping motor is fixedly connected with a second grinding wheel connecting shaft (216) through a coupler; a second ball fixing column (203) is arranged on the right side of the triangular prism connecting plate (205), twenty-four semicircular grooves which are in two rows and are in a circumferential array are formed in the second ball fixing column (203), and twenty-four second balls (204) are respectively and rotatably installed in twenty-four semicircular holes in the second ball fixing column (203);
the steel pipe external fixing part (3) comprises a first telescopic sleeve (301), a first telescopic rod (302), a fifth hydraulic cylinder (303), a fifth hydraulic cylinder top plate (304), a first rectangular groove (305), a sixth hydraulic cylinder (306), a sixth hydraulic cylinder top plate (307), a steel pipe fixing sleeve (308) and a third dovetail groove (309), and the lower surface of the first telescopic sleeve (301) is fixedly arranged at a position below the upper surface of the bottom plate (101); the lower surface of the first telescopic rod (302) is slidably arranged in a groove on the first telescopic sleeve (301), and the upper surface of the first telescopic rod is fixedly connected with the lower surface of a fifth hydraulic cylinder top plate (304); the bottom of the cylinder body of the fifth hydraulic cylinder (303) is fixedly arranged on a supporting plate on the side surface of the first telescopic sleeve (301), and the end part of a piston rod of the fifth hydraulic cylinder is fixedly connected with the supporting plate on the side surface of the first telescopic rod (302); a first rectangular groove (305) is formed in the top plate (304) of the fifth hydraulic cylinder, and two third dovetail grooves (309) are formed in the top plate (304) of the fifth hydraulic cylinder; the bottom of the cylinder body of the sixth hydraulic cylinder (306) is fixedly arranged on a supporting plate on the top plate (304) of the fifth hydraulic cylinder, and the end part of a piston rod of the sixth hydraulic cylinder is fixedly connected with the top plate (307) of the sixth hydraulic cylinder; the steel pipe fixing sleeve (308) is fixedly arranged below a sixth hydraulic cylinder top plate (307), and two sliding blocks on the steel pipe fixing sleeve are respectively arranged in two third dovetail grooves (309) in a sliding manner;
the internal fixing part (4) comprises a regular hexagonal plate (401), a second round hole (402), twenty-four seventh hydraulic cylinders (403) and six steel pipe internal fixing blocks (404); a second round hole (402) is formed in the middle of the regular hexagonal plate (401), and the second round hole (402) is rotatably mounted on a group of second balls (204); the twenty-four seventh hydraulic cylinders (403) are uniformly divided into six groups, each group of seventh hydraulic cylinders (403) is in a rectangular array, the bottoms of the cylinders are fixedly arranged on the side surfaces of the regular hexagonal plates (401), and the end parts of piston rods of the cylinders are fixedly connected with the inner sides of the steel pipe internal fixing blocks (404);
the outer welding part (5) comprises an outer welding part bottom plate (501), two first sliding blocks (502), four positioning strips (503), two third racks (504), two fourth stepping motors (505), two second gears (506), a sliding plate (507), a fifth stepping motor (508), a third gear (509), a second telescopic sleeve (510), an eighth hydraulic cylinder (511), a second telescopic rod (512), a second telescopic rod top plate (513), a triangular fixing seat (514), a steering engine (515), a steering engine connecting shaft (516), a second welding head fixing plate (517) and a second welding head (518), wherein the outer welding part bottom plate (501) is a rectangular plate, two first sliding blocks (502) are arranged below the first sliding blocks, and the two first sliding blocks (502) are respectively installed in the two second dovetail grooves (108) which are arranged on the upper side in a sliding mode; four rectangular positioning strips (503) are arranged on the bottom plate (501) of the external welding part, and a third rack (504) is arranged on the outer sides of the two rear positioning strips (503); the fifth stepping motor (508) is horizontally arranged, the side surface of the fifth stepping motor is fixedly arranged on the bottom plate (501) of the external welding part, and the motor shaft of the fifth stepping motor is fixedly connected with a third gear (509); the third gear (509) is meshed with the first rack (109); the four grooves on the sliding plate (507) are respectively installed on the four positioning bars (503) in a sliding manner; the two fourth stepping motors (505) are horizontally arranged, the side surfaces of the fourth stepping motors are fixedly arranged on the sliding plate (507), and the motor shafts of the fourth stepping motors are respectively and fixedly connected with the two second gears (506); the two second gears (506) are respectively meshed with the two third racks (504); the rear surface of the second telescopic sleeve (510) is fixedly arranged on a supporting plate on a sliding plate (507), one side of a second telescopic rod (512) is slidably arranged in a groove on the side surface of the second telescopic sleeve (510), the other side of the second telescopic rod is provided with a second telescopic rod top plate (513), a triangular fixing seat (514) is arranged on the second telescopic rod top plate (513), a steering engine connecting shaft (516) is rotatably arranged in a semicircular hole of the triangular fixing seat (514), a second welding head fixing plate (517) is fixedly arranged on the steering engine connecting shaft (516), the steering engine (515) is horizontally arranged, the side surface of the steering engine (515) is fixedly arranged on the side surface of the triangular fixing seat (514), and a motor shaft of the steering engine is fixedly connected with the steering engine connecting shaft (516; the second welding head (518) is fixedly arranged on the second welding head fixing plate (517);
the external grinding part (6) comprises an external grinding part bottom plate (601), two second sliding blocks (602), an external grinding part bottom plate supporting plate (603), two fourth dovetail grooves (604), a fourth gear (605), a sixth stepping motor (606), a fourth rack (607), a sliding sleeve (608), a seventh stepping motor (609), a fifth gear (610), a sliding sleeve supporting plate (611), a second rectangular groove (612), two ninth hydraulic cylinders (613), a sliding plate (614), two tenth hydraulic cylinders (615), a Z-shaped plate (616), an eighth stepping motor (617), a third grinding wheel seat (618), a third grinding wheel (619) and a third grinding wheel shaft (620), wherein the external grinding part bottom plate (601) is a rectangular plate, two second sliding blocks (602) are arranged below the first sliding block, and the two second sliding blocks (602) are respectively installed in two second dovetail grooves (108) below in a sliding mode; the sixth stepping motor (606) is horizontally arranged, the side surface of the sixth stepping motor is fixedly arranged on the external grinding part bottom plate (601), the motor shaft of the sixth stepping motor is fixedly connected with a fourth gear (605), and the fourth gear (605) is meshed with the first rack (109); an external grinding part bottom plate supporting plate (603) is arranged on the external grinding part bottom plate (601), two fourth dovetail grooves (604) are arranged on the inner side of the external grinding part bottom plate supporting plate (603), and a fourth rack (607) is arranged on the outer side of the external grinding part bottom plate supporting plate (603); the sliding sleeve (608) is slidably mounted on the external grinding part bottom plate supporting plate (603), and two sliding blocks in the sliding sleeve (608) are respectively slidably mounted in two fourth dovetail grooves (604); the seventh stepping motor (609) is horizontally arranged, the side surface of the seventh stepping motor is fixedly arranged on the outer side of the sliding sleeve (608), and a motor shaft of the seventh stepping motor is fixedly connected with the fifth gear (610); the fifth gear (610) is meshed with the fourth rack (607); the sliding sleeve supporting plate (611) is fixedly arranged at the inner side of the sliding sleeve (608), the bottoms of the cylinder bodies of the two ninth hydraulic cylinders (613) are fixedly arranged on the supporting plate above the sliding sleeve supporting plate (611), and the end parts of the piston rods of the two ninth hydraulic cylinders are fixedly connected with the supporting plate above the sliding plate (614); a second rectangular groove (612) is arranged on the sliding sleeve support plate (611), and a dovetail groove is respectively arranged on the left side and the right side of the sliding sleeve support plate (611); the two sliding blocks below the sliding plate (614) are respectively installed in the two dovetail grooves above the sliding sleeve supporting plate (611) in a sliding mode; the bottoms of the cylinder bodies of the two tenth hydraulic cylinders (615) are fixedly arranged on the sliding plate (614), and the piston ends of the tenth hydraulic cylinders are fixedly connected with the outer side of the Z-shaped plate (616); the Z-shaped plate (616) is slidably arranged in a groove in the middle of the sliding plate (614); a third grinding wheel seat (618) is arranged below the Z-shaped plate (616), a third grinding wheel shaft (620) is rotatably arranged in a circular hole of the third grinding wheel seat (618), an eighth stepping motor (617) is horizontally arranged, the side surface of the eighth stepping motor is fixedly arranged on the side surface of the third grinding wheel seat (618), and a motor shaft of the eighth stepping motor is fixedly connected with the third grinding wheel shaft (620) through a coupling; the third grinding wheel (619) is fixedly arranged on a third grinding wheel shaft (620) and is positioned in a third grinding wheel seat (618);
the steel pipe driving part (7) comprises a steel pipe driving part bottom plate (701), two third sliding blocks (702), two semicircular grooves (703), three driving wheel supporting plates (704), two driving wheels (705), an eighth stepping motor (706) and a steel pipe driving part bottom plate supporting plate (707), the steel pipe driving part bottom plate (701) is a rectangular plate, the two semicircular grooves (703) are formed in the lower surface of the steel pipe driving part bottom plate, and the two semicircular grooves (703) are slidably mounted on eight first balls (107); two third sliding blocks (702) are arranged below the steel pipe driving part bottom plate (701), and the two third sliding blocks (702) are respectively installed in the two first dovetail grooves (106) in a sliding mode; three driving wheel support plates (704) are arranged on the steel pipe driving part bottom plate (701); a rotating shaft is arranged in a circular hole in the upper surface of the driving wheel supporting plate (704), and the two driving wheels (705) are fixedly arranged on the rotating shaft in the circular hole of the driving wheel supporting plate (704) and positioned in the middle of the three driving wheel supporting plates (704); the eighth stepping motor (706) is horizontally arranged, the side surface of the eighth stepping motor is fixedly arranged on the steel pipe driving part bottom plate (701), and a motor shaft of the eighth stepping motor is fixedly connected with a rotating shaft in a circular hole of the driving wheel supporting plate (704); a steel pipe driving part bottom plate supporting plate (707) is arranged on the steel pipe driving part bottom plate (701), and the steel pipe driving part bottom plate supporting plate (707) is fixedly connected with the end part of a piston rod of the first hydraulic cylinder (104).
CN201711233451.XA 2017-11-30 2017-11-30 Giant steel pipe welding machine Active CN109500540B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116140885B (en) * 2023-04-23 2023-06-23 淄博市特种设备检验研究院 Glass lining reaction kettle welding device and method
CN117773438A (en) * 2024-02-23 2024-03-29 无锡科技职业学院 Welding device and welding method based on electromechanical maintenance

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324275A (en) * 1963-03-06 1967-06-06 Biraghi Soc Method of and apparatus for centering axially aligned tubes for butt welding
JPS60191757A (en) * 1984-03-12 1985-09-30 Maruichi Koki Kk Steel pipe end face grinder
CN201792159U (en) * 2010-08-26 2011-04-13 福建省长兴船舶重工有限公司 Pressure type transmission pipe fitting welding turntable
CN103264243A (en) * 2013-05-15 2013-08-28 中交一公局第一工程有限公司 Assembly welding method for producing large diameter extremely thick steel pipes through rotary walking rail and device thereof
CN203316884U (en) * 2013-06-18 2013-12-04 中国石油天然气集团公司 Multifunctional welding test machine
CN106271432A (en) * 2016-08-30 2017-01-04 天津鑫凯建业科技有限公司 A kind of steel pipes with straight manufacturing process and the reel hold down gag for this technique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324275A (en) * 1963-03-06 1967-06-06 Biraghi Soc Method of and apparatus for centering axially aligned tubes for butt welding
JPS60191757A (en) * 1984-03-12 1985-09-30 Maruichi Koki Kk Steel pipe end face grinder
CN201792159U (en) * 2010-08-26 2011-04-13 福建省长兴船舶重工有限公司 Pressure type transmission pipe fitting welding turntable
CN103264243A (en) * 2013-05-15 2013-08-28 中交一公局第一工程有限公司 Assembly welding method for producing large diameter extremely thick steel pipes through rotary walking rail and device thereof
CN203316884U (en) * 2013-06-18 2013-12-04 中国石油天然气集团公司 Multifunctional welding test machine
CN106271432A (en) * 2016-08-30 2017-01-04 天津鑫凯建业科技有限公司 A kind of steel pipes with straight manufacturing process and the reel hold down gag for this technique

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