CN113977123A - Metal plate welding device and method for machining - Google Patents

Metal plate welding device and method for machining Download PDF

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Publication number
CN113977123A
CN113977123A CN202111163974.8A CN202111163974A CN113977123A CN 113977123 A CN113977123 A CN 113977123A CN 202111163974 A CN202111163974 A CN 202111163974A CN 113977123 A CN113977123 A CN 113977123A
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China
Prior art keywords
welding
plate
rod
metal
metal plates
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CN202111163974.8A
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CN113977123B (en
Inventor
王辉
王晓敏
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Anhui Runying Building Materials Co ltd
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Anhui Runying Building Materials Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02Processes 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
    • 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
    • B23K37/003Cooling means
    • 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • 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 a metal plate welding device for machining and a welding method, and relates to the field of metal plate welding, wherein the metal plate welding device comprises a bottom plate, a support column arranged on the upper surface of the bottom plate and a top plate arranged at the upper end of the support column, vertical plates are arranged on the lower surface of an installation plate, a threaded rod is rotatably arranged between the two vertical plates, a moving block is in threaded connection with the threaded rod, the lower end of the moving block is connected with a welding machine, the side wall of the welding machine is connected with a rectangular block, two symmetrical rectangular sliding grooves are formed in the rectangular block, two sliding blocks are respectively and slidably arranged in the rectangular sliding grooves, and the lower surfaces of the sliding blocks are connected with limit rods; according to the invention, the rectangular block is arranged on the welding machine, the limiting rods can slide in the rectangular block, the metal plates are limited by the limiting rods, the distance between the adjacent limiting rods is adjusted, the gap between the two metal plates can be kept unchanged in the welding process, and the position of the metal plates is prevented from being changed due to the fact that the metal plates touch in the welding process.

Description

Metal plate welding device and method for machining
Technical Field
The invention relates to the technical field of metal plate welding, in particular to a metal plate welding device and a metal plate welding method for machining.
Background
The metal is a substance that has properties such as lustrous, rich ductility, easy electrically conductive and heat conduction, and in sheet metal's production and processing and use, often need weld sheet metal to obtain the panel of different grade type, and current sheet metal welding is mostly gone on through the manual work, but because factors such as staff collision during manual welding, it leads to sheet metal position to change to touch sheet metal easily, thereby influences sheet metal's welding result, influences welding quality.
Disclosure of Invention
The present invention is directed to a welding apparatus for a metal plate for machining, which solves the above-mentioned problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a metal sheet welding set for machining, includes bottom plate, fixed mounting at the support column of bottom plate upper surface and the roof of fixed mounting in the support column upper end, the lower fixed surface of mounting panel installs the riser of front and back symmetry, rotates between two risers and installs the threaded rod, threaded connection has the movable block on the threaded rod, the lower extreme fixedly connected with welding machine of movable block.
Can drive the threaded rod through the motor and rotate, can drive the movable block along its axial displacement when the threaded rod rotates to alright make the welding machine remove along the gap of metal sheet, so that weld along the gap of metal sheet.
The side wall of the welding machine is fixedly connected with a rectangular block, two symmetrical rectangular sliding grooves are formed in the rectangular block, two sliding blocks are respectively and slidably mounted in the rectangular sliding grooves, the lower surfaces of the sliding blocks are fixedly connected with limiting rods, the positions, corresponding to the rectangular sliding grooves, of the upper surface of the rectangular block are respectively in threaded connection with a bolt rod, and the lower end of the bolt rod extends into the rectangular sliding grooves and is fixedly connected with a fixing plate.
The gag lever post can carry out spacing fixed to a metal sheet to adjust the distance between two adjacent gag lever posts, can ensure in welding process that the gap between two metal sheets keeps unchangeable, prevent to touch metal sheet in welding process and lead to the metal sheet position to change, guarantee the metal sheet welding quality among the welding process, the rotation shank of bolt can drive the fixed plate and reciprocate, so that fix the slider with the fixed plate.
In a further embodiment, the upper surface of the sliding block and the lower surface of the fixed plate are both bonded with anti-slip pads, so that the friction force between the fixed plate and the sliding block can be increased, and the fixed plate can firmly press the sliding block in the rectangular sliding groove.
In further embodiment, the gag lever post includes the circle sleeve, spacing plectane and spacing round bar, and spacing plectane movable mounting is in the circle sleeve, and the lower fixed surface of spacing plectane is connected with spacing round bar, and the lower extreme of spacing round bar stretches out the circle sleeve, and the inside cylindrical hollow structure that is of circle sleeve, spacing plectane can carry on spacingly to the upper end of spacing round bar, prevents that spacing round bar from slipping away in the circle sleeve, leads to the unable normal use of gag lever post, and spacing round bar is solid iron round bar.
In a further embodiment, the last fixed surface of roof installs the cylinder, the output of cylinder runs through roof and fixedly connected with mounting panel, the equal fixed mounting in lower surface four corners position of mounting panel has the rotation support, the lower extreme of rotation support rotates installs the dwang, the one end of dwang is rotated and is installed down the depression bar, the lower extreme fixedly connected with clamp plate of depression bar down, when the mounting panel moves down, surface contact on clamp plate and the metal sheet of depression bar lower extreme down, and move down along with the mounting panel lasts constantly, the upper end of depression bar can promote the dwang and rotate down, when the dwang rotates to unable rotation, the clamp plate of depression bar lower extreme alright with firmly fixing the metal sheet at the bottom plate upper surface down.
In a further embodiment, a spring is arranged between one end, corresponding to the lower pressing rod, of the upper surface of the rotating rod and the lower surface of the mounting plate, and the spring can drive the rotating rod to rotate by utilizing the rebound force of the spring after welding is completed, so that the rotating rod returns to the initial position.
In a further embodiment, the lower fixed surface of mounting panel is connected with flexible gasbag, the downside of flexible gasbag and the one end fixed connection of dwang, flexible gasbag's lower extreme side is equipped with the air nozzle towards the welding machine, flexible gasbag's upper end lateral wall is equipped with the air inlet, when the dwang rotates, its other end can stimulate flexible gasbag extension, flexible gasbag's upper end lateral wall is equipped with the air inlet, through the air inlet alright make and store up gas in the flexible gasbag, after the metal sheet welding finishes, the dwang is to gyration, flexible gasbag is compressed under the effect of dwang this moment, flexible gasbag's lower extreme side is equipped with the air nozzle towards the welding machine, the gas alright spout through the air nozzle in the flexible gasbag, the air nozzle blows gas towards the welding seam position of metal sheet, gaseous alright cooling to the welding seam.
Preferably, the welding method based on the metal plate welding device for machining includes the following steps:
s1, placing two metal plates on the upper surface of a bottom plate, aligning gaps of the two metal plates with a welding machine, shifting a limiting rod to enable the limiting rods to be located on two sides of the metal plates respectively, and enabling the outer diameter distance of two adjacent limiting rods to be equal to the welding gap between the two metal plates;
s2, driving the mounting plate to move downwards by using the air cylinder, and enabling the lower end of the welding machine to be aligned to the position of a welding seam so as to weld the metal plate;
s3, driving the threaded rod to rotate, enabling the moving block to move back and forth along the threaded rod, and enabling the welding machine to move along the gap between the metal plates during welding;
s4, in the downward moving process of the mounting plate, the pressing plate at the lower end of the lower pressing rod can tightly press the corners of the metal plate, and meanwhile, the telescopic air bag can be lengthened to enable the interior of the telescopic air bag to be full of air;
s5, after the metal plate is welded, the cylinder is used for driving the mounting plate to move upwards, the rotating rod rotates under the action of the spring at the moment, the telescopic air bag is compressed, and gas in the telescopic air bag can be sprayed out towards the direction of a welding line through the air nozzle, so that the welded metal plate can be cooled.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the rectangular block is arranged on the welding machine, the slidable sliding block is arranged in the rectangular block, and the lower surface of the sliding block is fixedly connected with the limiting rod, so that the metal plates can be limited left and right by the limiting rod in the welding process, and the distance between two adjacent limiting rods is adjusted, so that the gap between the two metal plates can be kept unchanged in the welding process, the metal plates are prevented from being changed due to the fact that the metal plates are touched in the welding process, and the welding quality of the metal plates in the welding process is ensured.
2. Through the equal fixed mounting runing rest in lower surface four corners position at the mounting panel, the dwang is installed in the lower extreme rotation of runing rest, the one end of dwang is rotated and is installed depression bar down, the lower extreme fixedly connected with clamp plate of depression bar down, when the mounting panel moves down, the clamp plate and the metal sheet upper surface contact of depression bar lower extreme down, and move down along with the mounting panel lasts constantly, the upper end of depression bar can promote the dwang and rotate down, when the dwang rotates to unable rotation, the clamp plate of depression bar lower extreme alright with the firm fixing at the bottom plate upper surface of metal sheet, so that fix the metal sheet when the metal sheet welds.
3. The lower fixed surface through the mounting panel is connected with flexible gasbag, and flexible gasbag can extend the compression when the dwang rotates to at the exhaust of admitting air in extension compression process, so that after the metal sheet welding was accomplished, utilize the gas in the flexible gasbag to carry out cooling to the welding seam position of metal sheet.
Drawings
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic diagram of the internal structure of the rectangular block of the present invention;
fig. 5 is a schematic view of a stop lever according to the present invention.
In the figure: 1. a base plate; 11. a support pillar; 12. a top plate; 2. a cylinder; 3. mounting a plate; 4. rotating the bracket; 41. rotating the rod; 42. a lower pressure lever; 43. pressing a plate; 44. a spring; 5. a telescopic air bag; 51. an air nozzle; 6. a vertical plate; 61. a threaded rod; 62. a moving block; 7. welding machine; 8. a rectangular block; 81. a slider; 82. a limiting rod; 821. a circular sleeve; 822. a limiting circular plate; 823. a limiting round rod; 83. a bolt shank; 84. and (7) fixing the plate.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
Example 1
Referring to fig. 1-2 and 4-5, the embodiment provides a metal plate welding device for machining, which includes a bottom plate 1, a support pillar 11 fixedly installed on the upper surface of the bottom plate 1, and a top plate 12 fixedly installed on the upper end of the support pillar 11, vertical plates 6 which are symmetrical front and back are fixedly installed on the lower surface of an installation plate 3, a threaded rod 61 is rotatably installed between the two vertical plates 6, a motor for driving the threaded rod 61 is installed on one vertical plate 6, a moving block 62 is connected to the threaded rod 61 through a thread, a welding machine 7 is fixedly connected to the lower end of the moving block 62, the threaded rod 61 can be driven to rotate through the motor, and the moving block 62 can be driven to move along the axial direction of the threaded rod 61 when the threaded rod 61 rotates, so that the welding machine 7 can move along the gap of the metal plate, and welding can be performed along the gap of the metal plate.
The side wall of the welding machine 7 is fixedly connected with a rectangular block 8, two symmetrical rectangular sliding grooves are formed in the rectangular block 8, two sliding blocks 81 are respectively installed in the rectangular sliding grooves in a sliding mode, the lower surface of each sliding block 81 is fixedly connected with a limiting rod 82, the positions, corresponding to the rectangular sliding grooves, of the upper surface of the rectangular block 8 are respectively in threaded connection with a bolt rod 83, and the lower end of the bolt rod 83 extends into the rectangular sliding grooves and is fixedly connected with a fixing plate 84.
The limiting rods 82 connected to the two sliding blocks 81 in the same rectangular sliding groove can limit and fix one metal plate, the distance between the two adjacent limiting rods 82 is adjusted, the gap between the two metal plates can be kept unchanged in the welding process, the metal plate position is prevented from being changed due to the fact that the metal plates are touched in the welding process, and the welding quality of the metal plates in the welding process is guaranteed.
The fixing plate 84 can be adjusted to move up and down by rotating the bolt rod 83, so that the sliding block 81 is pressed tightly by the fixing plate 84, and the sliding block 81 is prevented from moving in the welding process, so that the limiting rod 82 cannot clamp the metal plate, and the welding quality of the metal plate is influenced.
The upper surface of the sliding block 81 and the lower surface of the fixing plate 84 are both adhered with anti-slip pads, and the anti-slip pads are arranged to increase the friction force between the fixing plate 84 and the sliding block 81, so that the fixing plate 84 firmly presses the sliding block 81 in the rectangular sliding groove.
The gag lever post 82 includes round sleeve 821, spacing plectane 822 and spacing round bar 823, spacing plectane 822 movable mounting is in round sleeve 821, the spacing round bar 823 of lower surface fixedly connected with of spacing plectane 822, round sleeve 821 is stretched out to the lower extreme of spacing round bar 823, the inside cylindrical hollow structure that is of round sleeve 821, and the round hole has been seted up to the lower extreme of round sleeve 821, the diameter of round hole is greater than the diameter of spacing round bar 823, be less than the diameter of spacing plectane 822, spacing plectane 822 can carry on spacingly to the upper end of spacing round bar 823, prevent that spacing round bar 823 from deviating from round sleeve 821 internal slipping, lead to the unable normal use of gag lever post 82.
Spacing round bar 823 is solid iron round bar, can make spacing round bar 823 have heavier quality to spacing round bar 823 can descend all the time, and spacing round bar 823 can reciprocate along circle sleeve 821, and when mounting panel 3 upwards removed, spacing round bar 823 can be to the interior withdrawal of circle sleeve 821.
Example 2
Referring to fig. 1-3, a further improvement is made on the basis of example 1:
the upper surface fixed mounting of roof 12 has cylinder 2, and the output of cylinder 2 runs through roof 12 and fixedly connected with mounting panel 3, and the equal fixed mounting in lower surface four corners position of mounting panel 3 has rotating bracket 4, and rotating bracket 4's lower extreme rotates and installs dwang 41, and the one end of dwang 41 rotates and installs depression bar 42, the lower extreme fixedly connected with clamp plate 43 of depression bar 42 down.
When the mounting plate 3 moves downwards, the pressing plate 43 at the lower end of the lower pressing rod 42 contacts with the upper surface of the metal plate, and along with the continuous downward movement of the mounting plate 3, the upper end of the lower pressing rod 42 can push the rotating rod 41 to rotate, and when the rotating rod 41 rotates to be incapable of rotating, the pressing plate 43 at the lower end of the lower pressing rod 42 can firmly fix the metal plate on the upper surface of the bottom plate 1.
And the lower surface of the pressing plate 43 is bonded with a rubber pad, and the rubber pad can increase the friction force between the pressing plate 43 and the metal plate when the pressing plate 43 presses the metal plate, so that the pressing plate 43 can more firmly press the metal plate.
Lower fixed surface of mounting panel 3 is connected with flexible gasbag 5, the downside of flexible gasbag 5 and the one end fixed connection of dwang 41, dwang 41 rotates, its other end can stimulate flexible gasbag 5 extension, the upper end lateral wall of flexible gasbag 5 is equipped with the air inlet, through the air inlet alright make and store up gaseously in the flexible gasbag 5, after the metal sheet welding finishes, dwang 41 is to gyration, flexible gasbag 5 is compressed under dwang 41's effect this moment, the lower extreme side of flexible gasbag 5 is equipped with air nozzle 51 towards welding machine 7, the gas alright spout through air nozzle 51 in the flexible gasbag 5, air nozzle 51 blows gas towards the welding seam position of metal sheet, gaseous alright cool down the welding seam.
Be equipped with spring 44 between the one end that the upper surface of dwang 41 corresponds depression bar 42 and the mounting panel 3 lower surface, when spring 44's setting can make mounting panel 3 rebound, utilize spring 44's bounce-back force drive dwang 41 to rotate for the flexible gasbag 5 of one end extrusion of mounting panel 3, so that gas outgoing in with flexible gasbag 5 after the welding, the metal sheet after the convenient welding cools off.
And the air inlet and the air nozzle 51 are both provided with one-way valves, so that the telescopic air bag 5 can be ensured to normally carry out air inlet and air exhaust in the process of extension and compression.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a metal sheet welding set for machining, includes bottom plate (1), fixed mounting support column (11) and roof (12) fixed mounting in support column (11) upper end of bottom plate (1) upper surface, its characterized in that: the lower surface of the mounting plate (3) is fixedly provided with vertical plates (6) which are symmetrical front and back, a threaded rod (61) is rotatably arranged between the two vertical plates (6), the threaded rod (61) is in threaded connection with a moving block (62), and the lower end of the moving block (62) is fixedly connected with a welding machine (7);
the welding machine is characterized in that a rectangular block (8) is fixedly connected to the side wall of the welding machine (7), two symmetrical rectangular sliding grooves are formed in the rectangular block (8), two sliding blocks (81) are respectively installed in the rectangular sliding grooves in a sliding mode, limiting rods (82) are fixedly connected to the lower surfaces of the sliding blocks (81), bolt rods (83) are respectively in threaded connection with the positions, corresponding to the rectangular sliding grooves, of the upper surface of the rectangular block (8), and the lower ends of the bolt rods (83) extend into the rectangular sliding grooves and are fixedly connected with fixing plates (84).
2. The welding apparatus for metal plates for machining according to claim 1, characterized in that: and anti-slip pads are bonded on the upper surface of the sliding block (81) and the lower surface of the fixing plate (84).
3. The welding apparatus for metal plates for machining according to claim 1, characterized in that: the limiting rod (82) comprises a round sleeve (821), a limiting circular plate (822) and a limiting circular rod (823), wherein the limiting circular plate (822) is movably installed in the round sleeve (821), the limiting circular rod (823) is fixedly connected to the lower surface of the limiting circular plate (822), and the lower end of the limiting circular rod (823) extends out of the round sleeve (821).
4. The welding apparatus for metal plates for machining according to claim 3, characterized in that: the limiting round rod (823) is a solid iron round rod.
5. The welding apparatus for metal plates for machining according to claim 1, characterized in that: the last fixed surface of roof (12) installs cylinder (2), the output of cylinder (2) runs through roof (12) and fixedly connected with mounting panel (3), the equal fixed mounting in lower surface four corners position of mounting panel (3) has rotating bracket (4), the lower extreme of rotating bracket (4) is rotated and is installed dwang (41), the one end of dwang (41) is rotated and is installed depression bar (42), the lower extreme fixedly connected with clamp plate (43) of depression bar (42) down.
6. The welding apparatus for metal plates for machining according to claim 1, characterized in that: and a spring (44) is arranged between one end of the upper surface of the rotating rod (41), which corresponds to the lower pressing rod (42), and the lower surface of the mounting plate (3).
7. The welding apparatus for metal plates for machining according to claim 1, characterized in that: the lower fixed surface of mounting panel (3) is connected with flexible gasbag (5), the one end fixed connection of the downside and dwang (41) of flexible gasbag (5).
8. The welding apparatus for metal plates for machining according to claim 7, characterized in that: the lower end side of the telescopic air bag (5) is provided with an air nozzle (51) facing the welding machine (7), and the upper end side wall of the telescopic air bag (5) is provided with an air inlet.
9. A welding method of a welding apparatus for metal plates for machining according to claims 1 to 8, characterized by comprising the steps of:
s1, placing two metal plates on the upper surface of a bottom plate (1), aligning a gap of the two metal plates with a welding machine (7), shifting a limiting rod (82) to enable the limiting rod (82) to be located on two sides of each metal plate respectively, and enabling the outer diameter distance of two adjacent limiting rods (82) to be equal to the welding gap between the two metal plates;
s2, driving the mounting plate (3) to move downwards by using the air cylinder (2), and enabling the lower end of the welding machine (7) to be aligned to the position of a welding seam so as to weld the metal plate;
s3, driving the threaded rod (61) to rotate, so that the moving block (62) can move back and forth along the threaded rod, and the welding machine (7) can move along the gap between the metal plates during welding;
s4, in the downward moving process of the mounting plate (3), a pressure plate (43) at the lower end of a lower pressure rod (42) can tightly press the corners of the metal plate, and meanwhile, a telescopic air bag (5) can be lengthened to enable the interior of the telescopic air bag to be full of air;
s5, after the metal plate is welded, the cylinder (2) is used for driving the mounting plate (3) to move upwards, the rotating rod (41) rotates under the action of the spring (44), the telescopic air bag (5) is compressed, and gas in the telescopic air bag can be sprayed out towards the direction of a welding seam through the air nozzle (51), so that the welded metal plate can be cooled.
CN202111163974.8A 2021-09-30 2021-09-30 Metal plate welding device and method for machining Active CN113977123B (en)

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CN113977123B CN113977123B (en) 2023-03-24

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CN104759803A (en) * 2015-04-24 2015-07-08 安阳中泰管业有限公司 Automatic welding system for reel pipe steel plate end-to-end butt connection
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