CN110587193A - Automatic welding equipment for narrow space of structural module - Google Patents

Automatic welding equipment for narrow space of structural module Download PDF

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Publication number
CN110587193A
CN110587193A CN201910933350.6A CN201910933350A CN110587193A CN 110587193 A CN110587193 A CN 110587193A CN 201910933350 A CN201910933350 A CN 201910933350A CN 110587193 A CN110587193 A CN 110587193A
Authority
CN
China
Prior art keywords
welding
narrow space
structural module
trolley
automatic welding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910933350.6A
Other languages
Chinese (zh)
Inventor
刘伟
阳作勇
杨晓禹
王刚
王厚高
杨中伟
修延飞
丁海明
张艳奋
樊祥博
李世波
张洪涛
桑健
何鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Nuclear Power Equipment Manufacturing Co Ltd
Harbin Institute of Technology Weihai
Original Assignee
Shandong Nuclear Power Equipment Manufacturing Co Ltd
Harbin Institute of Technology Weihai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Nuclear Power Equipment Manufacturing Co Ltd, Harbin Institute of Technology Weihai filed Critical Shandong Nuclear Power Equipment Manufacturing Co Ltd
Priority to CN201910933350.6A priority Critical patent/CN110587193A/en
Publication of CN110587193A publication Critical patent/CN110587193A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02Carriages for supporting the welding or cutting element
    • B23K37/0294Transport carriages or vehicles

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

Abstract

The invention discloses automatic welding equipment for a narrow space of a structural module, which comprises a welding trolley, wherein a horizontal left and right stroke fixing plate is arranged on the welding trolley and fixedly connected with a vertical upper and lower stroke fixing plate, the left and right stroke fixing plate is connected with a first power device through a first gear rack mechanism, the upper and lower stroke fixing plate is connected with a vertical plate through a slide rail, the vertical plate can slide up and down along the slide rail, the vertical plate is connected with a second power device through a second gear rack mechanism, a swing motor is fixedly arranged on the vertical plate, and the swing motor is connected with a welding gun through a light bar; the side, provided with the welding gun, of the welding trolley is provided with a video monitoring device, and the video monitoring device is connected with the controller; and a plurality of magnetic blocks are arranged at the lower part of the welding trolley.

Description

Automatic welding equipment for narrow space of structural module
Technical Field
The utility model belongs to the technical field of welding equipment, concretely relates to narrow and small space of structure module is with automatic welding equipment.
Background
The modular construction is a modern advanced construction idea, is advanced in that a large amount of module operation is introduced, has the advantages of high efficiency, good quality, low cost, light pollution and the like, and is applied to occasions such as nuclear power station construction, petrochemical engineering construction, civil building engineering and the like at present. The most advanced three-generation nuclear power technology widely introduced in China in the world has the greatest characteristic in the aspect of construction technology, namely the modular construction technology. The carrier realized by the modular construction technology is a structural module, and the key point is a large-scale structural module, such as a nuclear power CA01 structural module and a nuclear power CA20 structural module.
At present, the welding is carried out in narrow space by drilling the welding worker, so that the welding efficiency is low, and potential safety hazards exist. The connection and defect repair of structural parts inevitably exist in the processing and manufacturing of large-scale structural modules, and the existing manual electric arc welding has the disadvantages that the welding conditions of welders are severe, the operation is difficult, the efficiency is low and the safety cannot be ensured because the welding seam positions are mostly in the positions which are not ideal, such as narrow, closed space and the like; meanwhile, due to the fact that the field of view of the closed space is poor, a welder cannot observe and adjust the welding condition in real time, the surface of the welding seam is poor in forming, much splashes are generated, the surface is difficult to clean, and the quality of the welding seam cannot be guaranteed.
Therefore, the conventional welding method cannot meet the connection requirements of the modular construction, the problems of safety, quality and efficiency exist, and meanwhile, no special welding machine for the structure exists in the market, so that the application and popularization of the structure are limited.
Disclosure of Invention
The purpose of the present disclosure is to overcome the above-mentioned deficiencies of the prior art, and to provide an automatic welding device for a structural module in a narrow space; the automatic welding equipment has multiple degrees of freedom such as advancing, retreating, up-down, left-right, swinging and the like, and can realize the automatic welding of multilayer multi-channel fillet welds in a narrow space of a structural module at a far end.
The invention aims to provide automatic welding equipment for a narrow space of a structural module, and in order to achieve the aim, the company adopts the following technical scheme:
an automatic welding device for a narrow space of a structural module comprises a welding trolley, wherein a horizontal left stroke fixing plate and a horizontal right stroke fixing plate are arranged on the welding trolley and are fixedly connected with vertical upper stroke fixing plates and vertical lower stroke fixing plates; the side, provided with the welding gun, of the welding trolley is provided with a video monitoring device, and the video monitoring device is connected with the controller; and a plurality of magnetic blocks are arranged at the lower part of the welding trolley.
As a further technical scheme, a plurality of advancing driving wheels are arranged at the bottom of the welding tractor and are connected with a third power device through a chain wheel and chain transmission mechanism.
As a further technical scheme, the first power device, the second power device, the third power device and the swing motor are all connected with a controller.
As a further technical scheme, the head end and the tail end of the welding tractor are both provided with vertical guide wheels.
As a further technical scheme, the outer surface of the guide wheel is arranged beyond the side face of the welding trolley.
As a further technical scheme, the welding gun is further connected with a wire drawing mechanism, and the wire drawing mechanism is connected with a wire drawing motor.
As a further technical scheme, the welding gun head is also provided with a manual angle adjuster.
As a further technical scheme, the welding gun is connected with the light bar through an insulating sleeve.
As a further technical scheme, the video monitoring equipment is provided with a light supplement lamp.
The beneficial effect of this disclosure does:
the automatic welding equipment disclosed by the invention is compact in structure, and has multiple degrees of freedom such as advancing, retreating, controlling the welding gun up and down, swinging and the like, the push-pull wire water-cooling welding gun enables the welding gun to work for a long time in a long distance, meanwhile, the welding condition can be observed and adjusted in real time through the monitoring and control module, the welding seam is attractive in shape, automatic welding of multilayer multi-channel fillet welds in a narrow space of a structural module is realized at the far end, the problems of bad welding conditions and difficult operation of a welder are solved, the welding efficiency is effectively improved, the welding quality is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a front view of an automated welding apparatus;
FIG. 2 is a top view of the automated welding apparatus;
FIG. 3 is a diagram illustrating the welding effect of the automatic welding apparatus;
in the figure, 1, a trolley shell is automatically welded; 2, an NMRV worm gear speed reducer; 3. a stepping motor for advancing and retreating; 4. the left and right degrees of freedom use a worm gear and worm reduction motor; 5. a swing motor; 6. a magnetic block; 7. a travel drive wheel; 8. an up-down stroke fixing plate; 9. a gear rack for the upper and lower degrees of freedom; 10. a manual welding gun head angle adjuster; 11. a welding gun; 12. a video monitoring device; 13. the upper and lower freedom degrees use a worm gear and worm reduction motor; 14. a wire drawing mechanism; 15. a lever fixing seat; 16. rotating the feed rod; 17. a worm gear speed reducing motor for wire drawing; 18. a quincuncial coupler; 19. a left and right stroke fixing plate; 20. a rack and pinion for left and right degrees of freedom; 21. a chain wheel and chain transmission mechanism; 22. a guide wheel; 23. and a controller.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in this disclosure, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate description of the disclosure and simplify description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the disclosure.
As introduced in the background art, the inventor finds that the welding conditions of welders are severe, the operation is difficult, the efficiency is low and the safety cannot be ensured because the welding seam is mostly located at the position where the welding seam is not ideal, such as narrow space, closed space and the like; simultaneously because the enclosure space field of vision is relatively poor, the welder can't observe and adjust the welding condition in real time for the welding seam surface takes shape relatively poorly, splashes more, the difficult clearance in surface and the welding seam quality can't guarantee, in order to solve above technical problem, this application has provided a structure module is automatic welding equipment for narrow and small space.
The application provides automatic welding equipment for a narrow space of a structural module, which comprises a welding trolley, wherein a horizontal left and right stroke fixing plate is arranged on the welding trolley and fixedly connected with a vertical upper and lower stroke fixing plate, the left and right stroke fixing plate is connected with a first power device through a first gear rack mechanism, the upper and lower stroke fixing plate is connected with a vertical plate through a slide rail, the vertical plate can slide up and down along the slide rail, the vertical plate is connected with a second power device through a second gear rack mechanism, a swing motor is fixedly arranged on the vertical plate, and the swing motor is connected with a welding gun through a light bar; the side, provided with the welding gun, of the welding trolley is provided with a video monitoring device, and the video monitoring device is connected with the controller; and a plurality of magnetic blocks are arranged at the lower part of the welding trolley.
Example 1
The automatic welding equipment disclosed in the present embodiment is further described with reference to fig. 1-2;
referring to the attached drawing 1, the automatic welding equipment for the narrow space of the structural module comprises an automatic welding trolley shell 1, an NMRV worm gear speed reducer 2, a stepping motor 3 for advancing and retreating, a worm gear speed reducer 4 for left and right degrees of freedom, a swing motor 5, a magnet 6, a traveling driving wheel 7, an upper and lower stroke fixing plate 8, a gear rack 9 for upper and lower degrees of freedom, a manual welding gun head angle adjuster 10, a welding gun 11, a video monitoring device 12, a worm gear speed reducer 13 for upper and lower degrees of freedom, a wire drawing mechanism 14, a polished rod fixing seat 15, a rotating polished rod 16, a worm gear speed reducer 17 for wire drawing, a quincuncial coupling 18, a left and right stroke fixing plate 19, a gear rack 20 for left and right degrees of freedom, a chain wheel transmission mechanism 21, a guide wheel 22 and.
The welding gun 11 is a full water-cooling long-distance wire-pushing-pulling type welding gun, and can realize long-distance wire feeding cooling and stable welding by adopting a water, electricity, gas and wire feeding integrated cable.
A horizontal left and right stroke fixing plate 19 is arranged on an automatic welding trolley shell 1, the left and right stroke fixing plate 19 is fixedly connected with a vertical up and down stroke fixing plate 8, the left and right stroke fixing plate 19 is connected with a first power device through a first gear rack mechanism, the up and down stroke fixing plate 8 is connected with a vertical plate through a slide rail, the vertical plate can slide up and down along the slide rail, the vertical plate is connected with a second power device through a second gear rack mechanism, a swing motor 5 is fixedly arranged on the vertical plate, and the swing motor 5 is connected with a welding gun 11 through a rotary light bar 16; the rotating light bar 16 and the welding gun 11 are arranged in a non-coaxial mode, the end portion of the rotating light bar 16 is connected with the welding gun 11 through an angle aluminum fixing block, and the swing motor 5 drives the fixing block to further rotate the welding gun 11 fixed on the angle aluminum fixing block;
the first gear rack mechanism is a gear rack 20 for left and right degrees of freedom, the first power device is a worm and gear reducing motor 4 for left and right degrees of freedom, the worm and gear reducing motor 4 for left and right degrees of freedom drives the gear rack 20 for left and right degrees of freedom to operate, and further drives the left and right stroke fixing plates 19 to move left and right;
the second gear rack mechanism is a gear rack 9 for the up-and-down degree of freedom, the second power device is a worm and gear reducing motor 13 for the up-and-down degree of freedom, the worm and gear reducing motor 13 for the up-and-down degree of freedom drives the gear rack 9 for the up-and-down degree of freedom to operate, and then the vertical plate is driven to move up and down;
the swing motor 5 drives the welding gun to swing in a rotating way; the rotating feed rod 16 is connected with the swing motor 5 through a plum coupling 18, and the rotating feed rod 16 is connected with the vertical plate through a feed rod fixing seat 15.
The bottom of the automatic welding trolley shell 1 is provided with a plurality of advancing driving wheels 7, the advancing driving wheels 7 are connected with a third power device through a chain wheel chain transmission mechanism 21, the third power device is a stepping motor 3 for advancing and retreating, an NMRV worm gear speed reducer 2 is arranged between the stepping motor 3 for advancing and retreating and the chain wheel chain transmission mechanism 21, and the first power device, the second power device, the third power device and the swing motor are all connected with a controller 23.
The automatic welding equipment disclosed by the invention drives the walking driving wheel 7 to run by utilizing the forward and backward moving stepping motor 3, the NMRV worm gear speed reducer 2 and the chain wheel and chain transmission mechanism 21 so as to enable the welding trolley to move forward and backward; the multi-degree-of-freedom adjustment of the welding gun 11 such as left and right, front and back, and rotation is realized by the worm gear and worm speed reduction motor 4 for left and right degrees of freedom, the rack and pinion 20 for left and right degrees of freedom, the worm gear and worm speed reduction motor 13 for up and down degrees of freedom, the rack and pinion 9 for up and down degrees of freedom, the swing motor 5, and the rotating lever 16.
And each motor in the welding tractor is connected with a worm and gear reducer, and the worm and gear reducer has the characteristic of large torque, so that the walking process of the tractor can be ensured to be stable.
The whole size of the welding tractor is small, and the passing through of the structural module with small size can be guaranteed.
There are a plurality of magnetic blocks 6 in the welding carriage bottom, and magnetic block 6 adopts square neodymium magnet, and a plurality of drive wheels 7 of marcing can guarantee that can still normally walk even touch hole or hole, and neodymium magnet has stronger magnetic force, can guarantee that the dolly hugs closely the work piece surface and moves.
The head end and the tail end of the automatic welding trolley shell 1 are both provided with vertical guide wheels 22, and the outer surfaces of the guide wheels 22 exceed the side surfaces of the welding trolley. The magnets are additionally arranged on the left surface and the right surface of the lower vehicle body of the welding trolley, the whole advancing direction of the vehicle body is slightly inclined towards a welded workpiece through the difference of the outward extension lengths between the two guide wheels, the advancing route of the vehicle body is ensured to be correct during welding, and the trolley tends to deviate from the welded workpiece due to the action of the guide wheels during withdrawing, so that the magnet on the outer side of the vehicle body can ensure that the trolley still withdraws along the original route, and the guide wheels slightly protrude out of the surface of the vehicle body, so that the side surface of the vehicle body can be protected.
The long-distance wire pushing and water cooling welding gun 11 extends out of the middle of the welding trolley, and fillet welds on two sides can be achieved by turning over the welding gun head. The welding gun 11 is also connected with a wire drawing mechanism 14, the wire drawing mechanism is fixed with the welding gun and moves along with the welding gun, and the wire drawing mechanism 14 is connected with a worm and gear speed reducing motor 17 for wire drawing.
The angle of the welding gun 11 perpendicular to the direction of the weld seam can be adjusted within a certain range by manual or automatic means. The head of the welding gun 11 is also provided with a manual welding gun head angle adjuster 10, the manual welding gun head angle adjuster is conventional and is the same as the angle adjustment of a normally installed welding gun, and the angle adjustment is carried out by screwing.
The welding gun 11 is insulated from the rotating polished rod 16 and the welding trolley through the T-shaped insulating sleeve, so that the situation that electricity in the welding gun cannot be led into the welding trolley is guaranteed, and the problems that arc striking cannot be performed or the trolley is in operation failure and the like are avoided.
The controller 23 allows the welding trolley to be set to observe the condition of the welding gun in an idle-walking mode and adjust the welding speed, the angle of the welding gun, the swinging speed and the stay time of the two swinging ends in the welding process, so that the posture and the welding condition of the welding gun can be adjusted in real time to ensure the welding quality.
The parameters that can be adjusted by the controller 23 include manual and automatic switching, a welding gun swing angle, a swing frequency, a swing upper end dwell time, a swing lower end dwell time, a welding carriage traveling speed, a welding carriage advancing speed, a welding carriage retreating speed, an arc starting and traveling start button, an arc starting and traveling stop button, and the like.
The video monitoring equipment 12 is arranged at the end side of the automatic welding trolley shell 1, which is provided with the welding gun, and the video monitoring equipment 12 is connected with the controller 23; the welding video monitoring device 12 comprises a small space light supplement device, and can adopt a light supplement lamp, so that observation of welding conditions and welding seams in a large smoke or closed space can be guaranteed.
Adopt this disclosed automatic welding equipment to be applied to among the narrow and small space welding seam weldment work among the CA structure module, saved the manual work and gone into narrow and small space and weld, this will greatly improve the manufacturing efficiency of product, improve welding quality, will weld the worker and liberate from heavy production and carry out more efficient welding production. Meanwhile, the equipment becomes a first example of nuclear power applied to a narrow space welding line in a CA structure module.
The use mode of the automatic welding equipment disclosed by the invention is as follows:
before welding, a welding wire is fed into the welding gun 11 along a wire feeding pipe, the angle, the distance from the workpiece, the swing parameters and the like of the welding gun 11 are adjusted by the controller 23, and trial walking is carried out before arc striking to determine that no interference exists in the walking process. And starting welding after no abnormity is found in idle running, and starting a welding power supply to perform welding. And after the multi-layer and multi-channel welding seam is welded for one time, the welding trolley is retreated to the welding starting position by using the controller, and the angle and the swing parameters of the welding gun 11 are adjusted to weld the subsequent layers and channels. Utilize control and control module real-time observation and regulation welding condition among the welding process, guarantee the welding seam and take shape and quality, finally realize the automatic weld of the narrow and small space multilayer multichannel fillet weld of structural module at the distal end, as shown in fig. 3 for the effect sketch map of final welding seam, the automatic welding equipment of this disclosure has solved the problem that welder's welding condition is abominable, the operation is difficult, effectively promotes welding efficiency, improves welding quality, reduces the human cost.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (9)

1. An automatic welding device for a narrow space of a structural module is characterized by comprising a welding trolley, wherein a horizontal left stroke fixing plate and a horizontal right stroke fixing plate are arranged on the welding trolley and are fixedly connected with vertical upper stroke fixing plates and vertical lower stroke fixing plates; the side, provided with the welding gun, of the welding trolley is provided with a video monitoring device, and the video monitoring device is connected with the controller; and a plurality of magnetic blocks are arranged at the lower part of the welding trolley.
2. The automatic welding equipment for the structural module in the narrow space as claimed in claim 1, wherein a plurality of travelling driving wheels are arranged at the bottom of the welding trolley, and the travelling driving wheels are connected with a third power device through a chain wheel chain transmission mechanism.
3. The automatic welding equipment for the structural module in the narrow space as claimed in claim 2, wherein the first power device, the second power device, the third power device and the swing motor are all connected with a controller.
4. The automatic welding equipment for the structural module in the narrow space as claimed in claim 1, wherein the head end and the tail end of the welding trolley are provided with vertical guide wheels.
5. The automatic welding equipment for the structural module in the narrow space as claimed in claim 4, wherein the outer surface of the guide wheel is arranged beyond the side surface of the welding trolley.
6. The automatic welding equipment for the structural module in the narrow space as claimed in claim 1, wherein the welding gun is further connected with a wire drawing mechanism, and the wire drawing mechanism is connected with a wire drawing motor.
7. The automatic welding equipment for the structural module in the narrow space as claimed in claim 1, wherein the welding gun head is further provided with a manual angle adjuster.
8. The automatic welding equipment for the structural module in the narrow space as claimed in claim 1, wherein the welding gun is connected with the light bar through an insulating sleeve.
9. The automatic welding equipment for the structural module in the narrow space as claimed in claim 1, wherein the video monitoring equipment is provided with a light supplement lamp.
CN201910933350.6A 2019-09-26 2019-09-26 Automatic welding equipment for narrow space of structural module Pending CN110587193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910933350.6A CN110587193A (en) 2019-09-26 2019-09-26 Automatic welding equipment for narrow space of structural module

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Application Number Priority Date Filing Date Title
CN201910933350.6A CN110587193A (en) 2019-09-26 2019-09-26 Automatic welding equipment for narrow space of structural module

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Publication Number Publication Date
CN110587193A true CN110587193A (en) 2019-12-20

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Application publication date: 20191220