CN116060815B - Intelligent welding equipment and welding method for special-shaped pipe fitting - Google Patents

Intelligent welding equipment and welding method for special-shaped pipe fitting Download PDF

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Publication number
CN116060815B
CN116060815B CN202310207391.3A CN202310207391A CN116060815B CN 116060815 B CN116060815 B CN 116060815B CN 202310207391 A CN202310207391 A CN 202310207391A CN 116060815 B CN116060815 B CN 116060815B
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China
Prior art keywords
welding
assembly
box body
small
base
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CN202310207391.3A
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Chinese (zh)
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CN116060815A (en
Inventor
杨旭东
穆童
李斌
宋建岭
王伟
朱亚蓉
魏强
薛建文
王新
张�杰
徐卫东
徐昶
张迪
史朝军
史杰宾
刘静
罗全
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Tianjin Aerospace Changzheng Rocket Manufacturing Co ltd
AMET WELDING AUTOMATION TECHNOLOGY (BEIJING) CO LTD
Original Assignee
Tianjin Aerospace Changzheng Rocket Manufacturing Co ltd
AMET WELDING AUTOMATION TECHNOLOGY (BEIJING) CO LTD
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Application filed by Tianjin Aerospace Changzheng Rocket Manufacturing Co ltd, AMET WELDING AUTOMATION TECHNOLOGY (BEIJING) CO LTD filed Critical Tianjin Aerospace Changzheng Rocket Manufacturing Co ltd
Priority to CN202310207391.3A priority Critical patent/CN116060815B/en
Publication of CN116060815A publication Critical patent/CN116060815A/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
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • 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
    • 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
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—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
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
    • 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
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/06—Tubes
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention discloses intelligent welding equipment and a welding method for special-shaped pipe fittings, which relate to the technical field of welding and comprise the following steps: the welding device comprises a small assembly welding station and a large assembly welding station, wherein the small assembly welding station comprises a small assembly circular seam machine tool, and the large assembly welding station comprises a large assembly circular seam machine tool; the robot welding gun is arranged between the small-component circular seam machine tool and the large-component circular seam machine tool; the pipe welding clamp welding station comprises a flexible welding platform and an all-position welding machine, and the all-position welding machine can weld workpieces on the flexible welding platform; the first control system is connected with the robot welding gun; the second control system is in control connection with the all-position welding machine; the production efficiency of welding operation can be improved, the welding quality is improved, and the labor intensity is reduced.

Description

Intelligent welding equipment and welding method for special-shaped pipe fitting
Technical Field
The invention belongs to the technical field of welding, and particularly relates to intelligent welding equipment and a welding method for special-shaped pipe fittings.
Background
When the welded object is a special-shaped conduit structural member, the structural member is formed by welding a plurality of sections of conduit assemblies with different shapes in a splicing way, the labor intensity is high, the welding efficiency is low, the welding quality is difficult to ensure, and the technical level requirement on operators is high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides intelligent welding equipment and a welding method for special-shaped pipe fittings, which can improve the production efficiency of welding operation, improve the welding quality and lighten the labor intensity.
In order to achieve the above object, the present invention provides an intelligent welding apparatus for a special-shaped pipe, comprising:
the welding device comprises a small assembly welding station and a large assembly welding station, wherein the small assembly welding station comprises a small assembly circular seam machine tool, and the large assembly welding station comprises a large assembly circular seam machine tool;
the robot welding gun is arranged between the small-component circular seam machine tool and the large-component circular seam machine tool;
the welding station of the pipe welding tongs comprises a flexible welding platform and an all-position welding machine, and the all-position welding machine can weld workpieces on the flexible welding platform;
the first control system is connected with the robot welding gun;
and the second control system is in control connection with the all-position welding machine.
Optionally, the small-component girth machine tool includes:
a desktop platform;
the small assembly head seat part is arranged at one end of the tabletop platform and comprises a claw, and the claw can fix one end of the small assembly tubular workpiece in an inward expansion clamping mode;
the driven tailstock component is arranged at the other end of the tabletop platform in a sliding manner and abuts against the other end of the small-assembly tubular workpiece.
Optionally, the subassembly header component comprises:
the headstock support box body is arranged on the tabletop platform;
the rotary box body is movably arranged on the head seat supporting box body, a flower disc is movably arranged on the rotary box body, and the clamping jaws are arranged on the flower disc;
the overturning motor is arranged on the head seat supporting box body and can drive the rotary box body to carry out overturning movement;
the rotary motor is arranged on the rotary box body and can drive the flower disc to rotate;
the button box is arranged on the head seat supporting box body and is connected with the overturning motor and the rotary motor.
Optionally, the driven tailstock part includes:
the tailstock supporting box body is arranged on the desktop platform in a sliding manner;
the tail seat supporting box body is provided with a tail seat flower disc and a jacking cylinder, the output end of the jacking cylinder penetrates through the hollow fixing seat and is connected with one side of the tail seat flower disc, and the other side of the tail seat flower disc is provided with a center;
the rolling bearing is arranged between the outside of the output end of the jacking cylinder and the inside of the hollow fixing seat;
the control valve is arranged on the tailstock supporting box body and is connected with the jacking cylinder;
the locking handle is arranged between the tailstock supporting box body and the desktop platform.
Optionally, the large-assembly girth machine tool includes:
a base member;
the large assembly head seat part is arranged in the middle of the base part and comprises at least two clamping parts, and the clamping parts can clamp the outer surface of one end of the large assembly tubular workpiece;
the roller bracket component and the flexible roller bracket component are arranged on the base component in a sliding manner, and are respectively arranged on two sides of the large assembly head seat component;
the roller bracket component comprises a supporting roller, and the supporting roller is in rolling fit with the outer surface of the large-assembly tubular workpiece;
the flexible roller bracket component comprises a supporting seat, and the supporting seat is connected with the other end of the large component tubular workpiece.
Optionally, the large assembly header part comprises:
a main body structure disposed on the base member;
the U-shaped flower disc is rotationally arranged on the base component, and the clamping parts are uniformly arranged on the U-shaped flower disc;
the driving motor is arranged on the main body structure and is connected with the clamping part;
the lifting cylinder is arranged on the main body structure and is connected with the U-shaped flower disc.
Optionally, the roller bracket component includes:
the first base is in sliding connection with the base part through a first travelling wheel, and a first locking hand wheel is arranged on the first base;
the spiral lifter is arranged on the first base, one side of the spiral lifter is provided with a lifting hand wheel, and the top of the spiral lifter is connected with the supporting roller;
the scale is arranged on the first base and is used for measuring the moving distance of the spiral lifter.
Optionally, the flexible roller carrier member comprises:
the second base is in sliding connection with the base part through a second travelling wheel;
the rotary motor is arranged on the second base;
one end of the rotary arm is connected with the output end of the rotary motor, and the other end of the rotary arm is connected with the supporting seat.
Optionally, the pipe wrench welding station further includes a plurality of positioning clamping assemblies, the positioning clamping assemblies are detachably connected with the flexible welding platform, and the positioning clamping assemblies can fix the workpiece.
The invention also provides a welding method of the special-shaped pipe fitting, which comprises the following steps of:
placing the flange sleeve, the elbow, the hinge corrugated pipe, the tee joint and the compensator on a small assembly welding station for welding;
placing the workpiece welded by the small assembly welding station in a large assembly welding station for welding;
and placing the workpieces which cannot be welded by the small assembly welding station and the large assembly welding station in the pipe welding tongs welding station for welding.
The invention provides intelligent welding equipment and a welding method for special-shaped pipe fittings, which have the beneficial effects that: when the intelligent welding equipment is used for welding the small-component girth machine tool, an operator can also feed and discharge the large-component girth machine tool and the welding station of the pipe welding tongs, so that the production efficiency is improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
Fig. 1 shows a schematic view of an intelligent welding apparatus for profiled tubing in accordance with one embodiment of the invention.
Fig. 2 shows a schematic structural view of a small-assembly girth machine according to one embodiment of the invention.
Fig. 3 shows a schematic structural view of a subassembly header component according to one embodiment of the invention.
Fig. 4 shows a schematic structural view of a driven tailstock member according to an embodiment of the present invention.
FIG. 5 illustrates a schematic diagram of a large assembly welding station according to one embodiment of the invention.
Fig. 6 shows a schematic structural view of a large-assembly girth machine in accordance with one embodiment of the present invention.
Fig. 7 shows a schematic structural view of a large assembly header part according to one embodiment of the invention.
Fig. 8 shows a schematic structural view of a roller carrier member according to an embodiment of the present invention.
Fig. 9 shows a schematic structural view of a flexible roller carrier member according to one embodiment of the invention.
Fig. 10 is a schematic view showing a state in which a small-component girth machine fixes a tubular workpiece according to one embodiment of the present invention.
Fig. 11 is a schematic view showing a state in which a large-assembly girth machine fixes a tubular workpiece according to one embodiment of the present invention.
Fig. 12 is a schematic view showing a state where a flexible welding platform fixes a tubular workpiece according to an embodiment of the present invention.
Fig. 13 shows a top view of fig. 12.
Reference numerals illustrate:
1. a small-component circular seam machine tool; 2. a large-assembly circular seam machine tool; 3. a robot welding gun; 4. a flexible welding platform; 5. positioning the clamping assembly; 6. a first control system; 7. a second control system; 8. a desktop platform; 9. a small assembly header component; 10. a driven tailstock member; 11. the headstock supports the box body; 12. a rotary box body; 13. a flower disc; 14. a turnover motor; 15. a rotary motor; 16. a button box; 17. a conductive connection; 18. tailstock flower disc; 19. a cylinder is tightly propped; 20. a center; 21. a rolling bearing; 22. a control valve; 23. a locking handle; 24. a base member; 25. a large assembly header component; 26. a clamping part; 27. a roller bracket member; 28. a flexible roller carrier member; 29. supporting rollers; 30. a support base; 31. a main body structure; 32. a U-shaped flower disc; 33. a driving motor; 34. a lifting cylinder; 35. a first base; 36. a first traveling wheel; 37. the first locking hand wheel; 38. a screw elevator; 39. lifting hand wheels; 40. a ruler; 41. a second base; 42. a second travelling wheel; 43. a rotary motor; 44. a rotary arm; 45. a workpiece a; 46. a workpiece b; 47. a workpiece c; 48. and a workpiece d.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides intelligent welding equipment for special-shaped pipe fittings, which comprises the following components:
the welding device comprises a small assembly welding station and a large assembly welding station, wherein the small assembly welding station comprises a small assembly circular seam machine tool, and the large assembly welding station comprises a large assembly circular seam machine tool;
the robot welding gun is arranged between the small-component circular seam machine tool and the large-component circular seam machine tool;
the pipe welding clamp welding station comprises a flexible welding platform and an all-position welding machine, and the all-position welding machine can weld workpieces on the flexible welding platform;
the first control system is connected with the robot welding gun;
and the second control system is in control connection with the all-position welding machine.
Specifically, the welding equipment comprises a small component welding station, a large component welding station and a pipe welding clamp welding station, wherein the small component welding station is a workpiece with small welding turning radius, the large component welding station is a workpiece with large welding turning radius, and the pipe welding clamp welding station is a workpiece with welding opposite type and longer length, so that the whole production process of the special-shaped pipe fitting can be met by the welding equipment; in addition, the welding station of the small assembly and the welding station of the large assembly jointly use a robot welding gun, the welding operation can be alternately carried out on the welding stations of the large assembly and the small assembly through the operation of the first control system on the robot welding gun, and the production efficiency is improved better.
The welding station of the pipe welding tongs further comprises a welding power supply and a cooling water tank, and the whole welding station of the pipe welding tongs is independently controlled through a second control system.
Optionally, the small-component girth machine comprises:
a desktop platform;
the small assembly head seat part is arranged at one end of the tabletop platform and comprises a claw, and the claw can fix one end of the small assembly tubular workpiece in an inward expansion clamping mode;
the driven tailstock part is arranged at the other end of the tabletop platform in a sliding manner and abuts against the other end of the small-assembly tubular workpiece.
Specifically, when a small assembly welding station performs welding operation, a tubular workpiece is placed on a small assembly circular seam machine tool, one end of the tubular workpiece is fixed on a small assembly head seat part through a claw, and the small assembly head seat part adopts an internal expansion tool to expand and support the tubular workpiece; when the tubular workpiece is a straight pipe, the other end of the tubular workpiece is tightly propped up through the driven tailstock part, so that the coaxiality of the butt welding workpiece can be ensured, and the requirement of a wrong variable is met; when the small bent pipe is welded, the driven tailstock part is not adopted to tightly prop up, and the small-assembly circular seam machine tool is not suitable for welding the small bent pipe with overlong or overlarge rotating radius, so that the coaxial deviation caused by overlong welding is prevented.
In one embodiment, when the claw is used for carrying out internal expansion fixation on the flange workpiece, a positioning copper plate is additionally arranged at the position of the claw, so that the workpiece flange can be required to have flatness and the perpendicularity between the axis and the section, and the copper plate is fixed with the workpiece flange to prevent the flange from deforming caused by high heat during welding; when the clamping jaw is used for fixing the corrugated pipe and the compensator, the corrugated pipe is required to be integrally sleeved on the clamping jaw when the workpieces are welded due to weaker rigidity of the workpieces, and the matched positioning block is used for enabling the welding seam of the corrugated pipe to be positioned at the center of the forming groove and then sleeved on another welded workpiece for expansion spot welding.
The pipe fitting suitable for the small component welding station comprises a straight short pipe, a flange pipe, an elbow, a hinge corrugated pipe, a net sleeve corrugated pipe, a tee joint, a compensator, a small elbow workpiece and the like.
Optionally, the subassembly header component comprises:
the headstock supports the box body, is set up on the desk-top platform;
the rotary box body is movably arranged on the head seat supporting box body, a flower disc is movably arranged on the rotary box body, and a claw is arranged on the flower disc;
the overturning motor is arranged on the head seat supporting box body, and the overturning motor can drive the rotary box body to carry out overturning movement;
the rotary motor is arranged on the rotary box body and can drive the flower disc to rotate;
the button box is arranged on the headstock supporting box body and is connected with the overturning motor and the rotary motor.
Specifically, when the tubular workpiece is placed on the small assembly head seat part to be fixed, the tubular workpiece is sleeved on the clamping jaw, and the rotary motor can drive the flower disc to rotate, so that the girth welding can be completed only by realizing the rotation of the tubular workpiece under the condition that the welding machine is not moved; the turnover motor is further arranged on the headstock support box body, and when the small bent pipe is welded, in order to ensure the welding quality, the welding seam angle of the tubular workpiece is adjusted through the turnover motor, so that the welding of the robot welding gun is more convenient; the button box and the turnover limit switch are further arranged on the head seat supporting box body, so that the tubular workpiece can rotate in a stable direction in the welding process.
Optionally, the driven tailstock member includes:
the tailstock supports the box body and is arranged on the desktop platform in a sliding manner;
the hollow fixing seat is arranged on the tailstock supporting box body, the two ends of the hollow fixing seat are respectively provided with a tailstock flower disc and a jacking cylinder, and the output end of the jacking cylinder penetrates through the hollow fixing seat and is connected with one side of the tailstock flower disc, and the other side of the tailstock flower disc is provided with a center;
the rolling bearing is arranged between the outside of the output end of the jacking cylinder and the inside of the hollow fixing seat;
the control valve is arranged on the tailstock supporting box body and is connected with the jacking cylinder;
the locking handle is arranged between the tailstock supporting box body and the desktop platform.
Specifically, the driven tailstock part mainly considers meeting the requirements of workpiece jacking coaxiality, cylinder jacking structure, walking stability, locking and the like, the position of the driven tailstock part on the tabletop platform is adjusted to be in place according to the length of the tubular workpiece, the ejection or retraction of a tailstock flower disc can be controlled through a manual valve, the jacking force of a center is adjusted through a pressure regulating valve, and a pressure value can be displayed on a pressure gauge; a rolling bearing is arranged between the jacking cylinder and the hollow fixed seat, in addition, the driven tailstock part does not have the function of active rotation, and the tubular workpiece is clamped and jacked on the small assembly circular seam machine tool by being matched with the small assembly headstock part and rotates along with the small assembly headstock part; the tip on the tailstock disc chuck is of a detachable structure, and a proper tip is selected according to the radial size of the tubular workpiece.
Optionally, the large-assembly girth machine comprises:
a base member;
the large assembly head seat part is arranged in the middle of the base part and comprises at least two clamping parts, and the clamping parts can clamp the outer surface of one end of the large assembly tubular workpiece;
the roller bracket component and the flexible roller bracket component are arranged on the base component in a sliding manner, and are respectively arranged on two sides of the large assembly head seat component;
the roller bracket component comprises a supporting roller, and the supporting roller is in rolling fit with the outer surface of the large-assembly tubular workpiece;
the flexible roller bracket component comprises a supporting seat, and the supporting seat is connected with the other end of the large-assembly tubular workpiece.
Specifically, when a large assembly welding station performs welding operation, a tubular workpiece is placed on a large assembly girth machine tool, and the tubular workpiece is clamped and fixed on the outer surface of the tubular workpiece through a plurality of clamping parts; when the welded pipe fitting is a straight pipe, the other part of the tubular workpiece is lifted by the supporting roller of the roller bracket component, the supporting roller is free to roll, and the annular seam of the tubular workpiece is welded under the condition that the robot welding gun is ensured to be motionless under the driving of the large component head seat component; when the welded pipe fitting is a bent pipe, the other part of the tubular workpiece is fixed through the supporting seat of the flexible roller bracket component, and the angle of the supporting seat is adjusted through the flexible roller bracket component, so that the welding seam and the large assembly head seat component keep a coaxial relationship, and the requirement of a staggered quantity is met.
The pipe fitting suitable for the large assembly welding station comprises a long straight pipe, a bent pipe and a part welded with the small assembly welding station.
The base part is of an integral rigid structure and is formed by welding high-quality sectional materials; after annealing treatment, directly processing a required positioning surface and a required mounting surface; the base part is used as a basic part of the large-assembly circular seam machine tool and is used for bearing a large-assembly head seat part, a roller bracket part and a flexible roller bracket part, and a locking groove, a limiting block and the like are arranged on the base part.
Optionally, the large assembly header part comprises:
a main body structure disposed on the base member;
the U-shaped flower disc is rotatably arranged on the base part, and a plurality of clamping parts are uniformly arranged on the U-shaped flower disc;
the driving motor is arranged on the main body structure and is connected with the clamping part;
and the lifting cylinder is arranged on the main body structure and is connected with the U-shaped flower disc.
Specifically, this big subassembly headstock part possesses the rotatory function of initiative, rotates on the major structure and sets up U type flower disc, and U type flower disc possesses gyration, presss from both sides tightly and the function of predetermined position, and driving motor can make clamping part carry out telescopic movement. The U-shaped flower disc adopts an open clamping design, is convenient for loading and unloading of the special-shaped guide tube, and when in welding, a welding control system is used for calling and executing a welding program, and a torque motor drives a large assembly head seat part to clamp a workpiece to rotate. The magnetic switch of the air cylinder feeds back the extending state of the clamping part, and the driving motor is started to clamp or loosen the workpiece. When the lifting cylinder can ensure that the U-shaped flower disc continuously rotates, the lifting cylinder can not interfere with the driving motor, the program is interlocked, and the safety of equipment is ensured.
Optionally, the roller bracket member comprises:
the first base is in sliding connection with the base part through a first travelling wheel, and a first locking hand wheel is arranged on the first base;
the spiral lifter is arranged on the first base, one side of the spiral lifter is provided with a lifting hand wheel, and the top of the spiral lifter is connected with the supporting roller;
and the scale is arranged on the first base and is used for measuring the moving distance of the spiral lifter.
Specifically, the roller bracket component freely slides on the base component through the first travelling wheel, when the straight pipe is welded, the position of the first base is adjusted through the first travelling wheel, then the position is fixed through the first locking hand wheel, the spiral lifter is adjusted, the supporting roller is adjusted to a proper height, and the supporting roller is in rolling fit with the outer surface of the straight pipe.
The spiral lifter can enable the supporting roller to move up and down, so that the supporting of workpieces with different diameters is met.
Optionally, the flexible roller carrier member comprises:
the second base is in sliding connection with the base part through a second travelling wheel;
the rotary motor is arranged on the second base;
one end of the rotary arm is connected with the output end of the rotary motor, and the other end of the rotary arm is connected with the supporting seat.
Specifically, the flexible roller bracket freely slides on the base part through the second travelling wheel, when the bent pipe is welded, the position of the second base is adjusted through the second travelling wheel, and then the position of the rotary arm is adjusted through the rotary motor, so that the supporting seat on the rotary arm is stably connected with the bent pipe; the free rotation of the rotary arm can enable the supporting seat to conduct circular motion by taking the circle center position of the U-shaped flower disc as a reference, and the robot welding gun is guaranteed to conduct girth welding on the bent pipe accurately.
Optionally, the pipe welding tongs welding station further comprises a plurality of positioning clamping assemblies, the positioning clamping assemblies are detachably connected with the flexible welding platform, and the positioning clamping assemblies can fix the workpiece.
Specifically, for workpieces which cannot be welded through a small component welding station and a large component welding station, an all-position welding machine can be adopted for welding; the full-position welding machine is provided with two welding heads, so that the butt welding of the pipe with the outer diameter of ɸ mm- ɸ mm can be satisfied; the all-position welding machine has the functions of AVC arc voltage tracking, mechanical swinging and precise wire feeding. The special integral clamping system is adopted, so that the pipe diameter can be quickly adjusted when the pipe diameter is replaced. The welding head is clamped on the pipeline and then is automatically centered. The multi-section programming can be performed, and different parameters are set for each section so as to meet the requirement of all-position welding.
In order to facilitate the welding of all-position pipelines and the requirement of manual welding, the system is provided with a flexible welding platform and a positioning clamping assembly, the positioning clamping assembly can freely adjust the installation position and the fixing direction on the flexible welding platform, is used for clamping the pipes during all-position welding, and the platform is provided with a standard clamping assembly and can also be used as a manual welding platform.
And the positioning clamping assembly is used for supporting the workpiece, adjusting the placing height of the workpiece and facilitating the welding of the pipe welding tongs.
The invention also provides a welding method of the special-shaped pipe fitting, which comprises the following steps of:
placing the flange sleeve, the elbow, the hinge corrugated pipe, the tee joint and the compensator on a small assembly welding station for welding;
placing the workpiece welded by the small assembly welding station in a large assembly welding station for welding;
and placing the workpieces which cannot be welded by the small assembly welding station and the large assembly welding station in the pipe welding tongs welding station for welding.
Examples
As shown in fig. 1 to 13, the present invention provides an intelligent welding apparatus for a special-shaped pipe, comprising:
the welding device comprises a small assembly welding station and a large assembly welding station, wherein the small assembly welding station comprises a small assembly circular seam machine tool 1, and the large assembly welding station comprises a large assembly circular seam machine tool 2;
the robot welding gun 3 is arranged between the small-component circular seam machine tool 1 and the large-component circular seam machine tool 2;
the pipe welding clamp welding station comprises a flexible welding platform 4 and an all-position welding machine, and the all-position welding machine 5 can weld workpieces on the flexible welding platform 4;
the first control system 6 is connected with the robot welding gun 3;
and the second control system 7 is in control connection with the all-position welding machine.
In this embodiment, the small-component girth machine 1 bed includes:
a tabletop platform 8;
the small assembly head seat part 9 is arranged at one end of the tabletop platform 8, and the small assembly head seat part 9 comprises a claw which can fix one end of the small assembly tubular workpiece in an inward expansion clamping manner;
the driven tailstock part 10 is arranged at the other end of the tabletop platform 8 in a sliding manner, and the driven tailstock part 10 abuts against the other end of the small-assembly tubular workpiece.
In the present embodiment, the subassembly headstock part 9 includes:
the headstock support box 11 is arranged on the tabletop platform 8;
the rotary box body 12 is movably arranged on the head seat supporting box body 11, the rotary box body 12 is movably provided with a flower disc 13, and the flower disc 13 is provided with a claw;
the overturning motor 14 is arranged on the head seat supporting box body 11, and the overturning motor 14 can drive the rotary box body 12 to carry out overturning movement;
the rotary motor 15 is arranged on the rotary box body 12, and the rotary motor 15 can drive the flower disc 13 to rotate;
the button box 16 is arranged on the head seat supporting box body 11, and the button box 16 is connected with the turnover motor 14 and the rotary motor 15.
In the present embodiment, the driven tailstock member 10 includes:
the tailstock supports the box body and is arranged on the tabletop platform 8 in a sliding manner;
the hollow fixing seat is arranged on the tailstock supporting box body, the two ends of the hollow fixing seat are respectively provided with a tailstock flower disc 18 and a jacking cylinder 19, the output end of the jacking cylinder 19 penetrates through the hollow fixing seat and is connected with one side of the tailstock flower disc 18, and the other side of the tailstock flower disc 18 is provided with a center 20;
a rolling bearing 21 arranged between the outside of the output end of the jack cylinder 19 and the inside of the hollow fixing seat;
the control valve 22 is arranged on the tailstock supporting box body, and the control valve 22 is connected with the jacking cylinder 19;
a locking handle 23 is arranged between the tailstock supporting box body and the tabletop platform 8.
In the present embodiment, the large-component girth machine tool 2 includes:
a base member 24;
the large assembly headstock part 25 is arranged in the middle of the base part 24, and the large assembly headstock part 25 comprises at least two clamping parts 26, and the clamping parts 26 can clamp the outer surface of one end of a large assembly tubular workpiece;
a roller bracket member 27 and a flexible roller bracket member 28 slidably disposed on the base member 24, the roller bracket member 27 and the flexible roller bracket member 28 being disposed on both sides of the large-assembly head seat member 25, respectively;
the roller bracket component 27 comprises a supporting roller 29, and the supporting roller 29 is in rolling fit with the outer surface of the large-assembly tubular workpiece;
the flexible roller bracket member 28 includes a support base 30, the support base 30 being connected to the other end of the large component tubular workpiece.
In the present embodiment, the large-assembly headstock member 25 includes:
a body structure 31 disposed on the base member 24;
a U-shaped flower disc 32 rotatably provided on the base member 24, the plurality of holding portions 26 being uniformly provided on the U-shaped flower disc 32;
a driving motor 33 provided on the main body structure 31, the driving motor 33 being connected to the clamping portion 26;
the lifting cylinder 34 is arranged on the main body structure 31, and the lifting cylinder 34 is connected with the U-shaped flower disc 32.
In the present embodiment, the roller carrier member 27 includes:
the first base 35 is slidably connected with the base member 24 through a first travelling wheel 36, and a first locking hand wheel 37 is arranged on the first base 35;
the spiral lifter 38 is arranged on the first base 35, one side of the spiral lifter 38 is provided with a lifting hand wheel 39, and the top of the spiral lifter 38 is connected with the supporting roller 29;
a scale 40 provided on the first base 35, the scale 40 being for measuring a moving distance of the screw lifter 38.
In this embodiment, the flexible roller carrier member 28 includes:
a second base 41 slidably coupled to the base member 24 by a second road wheel 42;
a swing motor 43 provided on the second base 41;
one end of the rotary arm 44 is connected to the output end of the rotary motor 43, and the other end of the rotary arm 44 is connected to the support base 30.
In this embodiment, the pipe wrench welding station further includes a plurality of positioning and clamping assemblies 5, and the positioning and clamping assemblies 5 are detachably connected with the flexible welding platform 4, and the positioning and clamping assemblies 5 can fix the workpiece.
The invention also provides a welding method of the special-shaped pipe fitting, which comprises the following steps of:
placing the flange sleeve, the elbow, the hinge corrugated pipe, the tee joint and the compensator on a small assembly welding station for welding;
placing the workpiece welded by the small assembly welding station in a large assembly welding station for welding;
and placing the workpieces which cannot be welded by the small assembly welding station and the large assembly welding station in the pipe welding tongs welding station for welding.
In summary, in the intelligent welding equipment, when the small-component girth machine tool 1 is used for welding a tubular workpiece, the disc chuck 13 of the small-component headstock part 9 needs to be ensured to be vertical and coaxial with the center 20, a welding gun in the robot welding gun 3 is moved to a 12 o' clock position, the tungsten height is adjusted, the disc chuck 13 drives the tubular workpiece to rotate during welding, the welding gun is motionless, and the rotating speed of the disc chuck 13 is controlled by the rotary motor 15 and is linked with the robot welding gun 3; in addition, when the bent pipe is fixed on the small-assembly circular seam machine tool 1, the driven tailstock part 10 is not required to be tightly held; when the large-assembly circular seam machine tool 2 is used for welding the bent pipe, the outer surface of the bent pipe is clamped through the V-shaped clamping part, the other part of the bent pipe is fixed through the supporting seat 30 of the flexible roller bracket component 28, and when the U-shaped flower disc 32 drives the bent pipe to rotate, the rotary motor 43 drives the supporting seat 30 to adjust the angle, so that the welding seam of the bent pipe is coaxial with the circle center position of the U-shaped flower disc 32, and the requirement of a misplacement is met; the welding station of the pipe welding tongs is used for welding a workpiece which cannot be welded by rotating the welding station of the small assembly and the welding station of the large assembly, the all-position welding machine is used for welding the workpiece, the workpiece is fixed, the welding gun is rotated, the all-position welding requirement is met, and the special-shaped guide pipe can be assembled and clamped on the flexible welding platform 4 manually. The position of the pipe welding tongs head in the all-position welding machine is adjusted through the second control system 7, so that the welding quality is ensured.
As shown in fig. 11, when the workpieces a45 and b46 are butt welded on the small assembly girth machine tool 1, the gas path of the small assembly headstock part 9 is firstly communicated, the clamping jaws are expanded outwards to fix the workpiece a, the welding seam is ensured to be positioned at the center of the forming groove, then the workpiece b46 is sleeved, the tensioning shaft is rotated to expand the workpiece, finally the welding gun in the robot welding gun 3 is adjusted to a proper position, the workpiece is rotated to carry out girth welding, and finally the workpiece c47 is produced.
As shown in fig. 12, the workpiece d48 is clamped and fixed on the large-assembly circular seam machine 2, then the workpiece c47 is fixed by the support seat 30 of the flexible roller bracket component 28, so that the axes of the workpiece c47 and the workpiece d48 are consistent, and finally the workpiece d48 is rotated by rotating the U-shaped flower disc 32 to realize the rotation of the workpiece, so that automatic welding is performed.
As shown in fig. 13, the welding is performed on the workpiece which cannot be welded by the small-component girth machine tool 1 and the large-component girth machine tool 2 on the flexible welding platform 4, each component is fixed on the flexible welding platform 4 through the positioning and clamping component 5, then the welding tongs of the all-position welding machine are controlled through the second control system 7, and the welding is performed under the condition that the workpiece is not moved.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.

Claims (8)

1. Intelligent welding equipment of dysmorphism pipe fitting, its characterized in that includes:
the welding device comprises a small assembly welding station and a large assembly welding station, wherein the small assembly welding station comprises a small assembly circular seam machine tool, and the large assembly welding station comprises a large assembly circular seam machine tool;
the robot welding gun is arranged between the small-component circular seam machine tool and the large-component circular seam machine tool;
the welding station of the pipe welding tongs comprises a flexible welding platform and an all-position welding machine, and the all-position welding machine can weld workpieces on the flexible welding platform;
the first control system is connected with the robot welding gun;
the second control system is in control connection with the all-position welding machine;
the small-assembly girth machine tool comprises:
a desktop platform;
the small assembly head seat part is arranged at one end of the tabletop platform and comprises a claw, and the claw can fix one end of the small assembly tubular workpiece in an inward expansion clamping mode;
the driven tailstock component is arranged at the other end of the desktop platform in a sliding manner and abuts against the other end of the small-assembly tubular workpiece;
the subassembly header assembly includes:
the headstock support box body is arranged on the tabletop platform;
the rotary box body is movably arranged on the head seat supporting box body, a flower disc is movably arranged on the rotary box body, and the clamping jaws are arranged on the flower disc;
the overturning motor is arranged on the head seat supporting box body and can drive the rotary box body to carry out overturning movement;
the rotary motor is arranged on the rotary box body and can drive the flower disc to rotate;
the button box is arranged on the head seat supporting box body and is connected with the overturning motor and the rotary motor.
2. The intelligent welding apparatus for profiled tubing as defined in claim 1, wherein the driven tailstock member comprises:
the tailstock supporting box body is arranged on the desktop platform in a sliding manner;
the tail seat supporting box body is provided with a tail seat flower disc and a jacking cylinder, the output end of the jacking cylinder penetrates through the hollow fixing seat and is connected with one side of the tail seat flower disc, and the other side of the tail seat flower disc is provided with a center;
the rolling bearing is arranged between the outside of the output end of the jacking cylinder and the inside of the hollow fixing seat;
the control valve is arranged on the tailstock supporting box body and is connected with the jacking cylinder;
the locking handle is arranged between the tailstock supporting box body and the desktop platform.
3. Intelligent welding apparatus for profiled tubes according to claim 1, characterised in that the large-assembly girth machine comprises:
a base member;
the large assembly head seat part is arranged in the middle of the base part and comprises at least two clamping parts, and the clamping parts can clamp the outer surface of one end of the large assembly tubular workpiece;
the roller bracket component and the flexible roller bracket component are arranged on the base component in a sliding manner, and are respectively arranged on two sides of the large assembly head seat component;
the roller bracket component comprises a supporting roller, and the supporting roller is in rolling fit with the outer surface of the large-assembly tubular workpiece;
the flexible roller bracket component comprises a supporting seat, and the supporting seat is connected with the other end of the large component tubular workpiece.
4. The intelligent welding apparatus for profiled tubing as defined in claim 3 wherein said large assembly header assembly comprises:
a main body structure disposed on the base member;
the U-shaped flower disc is rotationally arranged on the base component, and the clamping parts are uniformly arranged on the U-shaped flower disc;
the driving motor is arranged on the main body structure and is connected with the clamping part;
the lifting cylinder is arranged on the main body structure and is connected with the U-shaped flower disc.
5. The intelligent welding apparatus for profiled tubular elements according to claim 3, wherein the roller bracket component comprises:
the first base is in sliding connection with the base part through a first travelling wheel, and a first locking hand wheel is arranged on the first base;
the spiral lifter is arranged on the first base, one side of the spiral lifter is provided with a lifting hand wheel, and the top of the spiral lifter is connected with the supporting roller;
the scale is arranged on the first base and is used for measuring the moving distance of the spiral lifter.
6. The intelligent welding apparatus for profiled tubing as defined in claim 3 wherein the flexible roller carrier assembly comprises:
the second base is in sliding connection with the base part through a second travelling wheel;
the rotary motor is arranged on the second base;
one end of the rotary arm is connected with the output end of the rotary motor, and the other end of the rotary arm is connected with the supporting seat.
7. The intelligent welding equipment for special-shaped pipe fittings according to claim 1, wherein the pipe welding tongs welding station further comprises a plurality of positioning clamping assemblies, wherein the positioning clamping assemblies are detachably connected with the flexible welding platform, and the positioning clamping assemblies can fix the workpiece.
8. A method of welding a profiled tube, using an intelligent welding device for profiled tubes according to any one of claims 1-7, characterized in that the welding method comprises:
placing the flange sleeve, the elbow, the hinge corrugated pipe, the tee joint and the compensator on a small assembly welding station for welding;
placing the workpiece welded by the small assembly welding station in a large assembly welding station for welding;
and placing the workpieces which cannot be welded by the small assembly welding station and the large assembly welding station in the pipe welding tongs welding station for welding.
CN202310207391.3A 2023-03-07 2023-03-07 Intelligent welding equipment and welding method for special-shaped pipe fitting Active CN116060815B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310207391.3A CN116060815B (en) 2023-03-07 2023-03-07 Intelligent welding equipment and welding method for special-shaped pipe fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310207391.3A CN116060815B (en) 2023-03-07 2023-03-07 Intelligent welding equipment and welding method for special-shaped pipe fitting

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CN116060815B true CN116060815B (en) 2023-06-13

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103317289A (en) * 2013-07-12 2013-09-25 苏州澳冠自动化设备有限公司 Double-station welding robot
CN204735874U (en) * 2015-07-15 2015-11-04 马鞍山市天睿实业有限公司 Fire extinguisher barrel girth welding machine
CN107283097A (en) * 2017-08-16 2017-10-24 山推工程机械股份有限公司 A kind of welding system
CN107738060A (en) * 2017-11-20 2018-02-27 东莞理工学院 A kind of irregular pipeline weld jig
CN209578599U (en) * 2019-01-11 2019-11-05 安徽艾可蓝环保股份有限公司 A kind of Purifier for vehicle abnormal shape outlet tail piece welding fabrication fixture
CN210360019U (en) * 2019-07-11 2020-04-21 重庆申耀机械工业有限责任公司 Welding tool for radiating oil pipe bracket
CN216633232U (en) * 2022-01-13 2022-05-31 广东元晟智能装备制造有限公司 Heavy three-way pipe automatic welding equipment

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