CN117620510A - Pipe welding equipment for thin-wall metal pipe - Google Patents

Pipe welding equipment for thin-wall metal pipe Download PDF

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Publication number
CN117620510A
CN117620510A CN202410103736.5A CN202410103736A CN117620510A CN 117620510 A CN117620510 A CN 117620510A CN 202410103736 A CN202410103736 A CN 202410103736A CN 117620510 A CN117620510 A CN 117620510A
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China
Prior art keywords
welding
guide groove
gear
movable
movable seat
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Granted
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CN202410103736.5A
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Chinese (zh)
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CN117620510B (en
Inventor
张兴丰
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Yangzhou Yangyong Welded Pipe Equipment Manufacturing Co ltd
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Yangzhou Yangyong Welded Pipe Equipment Manufacturing Co ltd
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Priority to CN202410103736.5A priority Critical patent/CN117620510B/en
Publication of CN117620510A publication Critical patent/CN117620510A/en
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    • 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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Abstract

The invention discloses a pipe welding device for a thin-wall metal pipe, which comprises a welding table, wherein the welding table is provided with: a pair of synchronously rotating drums for fixing the metal pipe; the movable seat is used for supporting the welding gun; a guide groove including a first guide groove and a second guide groove perpendicular to the first guide groove and communicating with a middle portion of the first guide groove, wherein: the rotary drum stops rotating, and the movable seat leaves the second guide groove and moves to the side from the middle part of the first guide groove. According to the pipe welding equipment for the thin-wall metal pipes, two sections of horizontal welding paths and two sections of short arc lines connected with each other form an independent triangular welding spot on the side wall of the joint of the two metal pipes, the welding spot connects the two metal pipes together, then the rotary drum is manually rotated, the welding gun repeatedly moves, a plurality of triangular welding spots are welded on the joint of the two metal pipes, the triangular welding spots are mutually overlapped, a welding ring is formed at the joint of the two metal pipes, and a gap between the two metal pipes is sealed.

Description

Pipe welding equipment for thin-wall metal pipe
Technical Field
The invention relates to the technical field of metal pipes, in particular to pipe welding equipment for a thin-wall metal pipe.
Background
A metal pipe is a very common pipe material, which has strong compression resistance and ductility, can be buffered by a certain deformation when being extruded, and cannot be directly broken, so that the metal pipe has very wide application.
According to publication (bulletin) number CN103846537B, publication (bulletin) date 2016.06.22, a method for welding dissimilar metal pipes is disclosed, comprising the steps of: two sections of dissimilar metal pipes are respectively fixed in a fixed tool and a movable tool, the metal pipes in the movable tool are subjected to closing-up treatment, and a core rod which is fixed in an auxiliary tool and can conduct electricity is preset in the metal pipes, and the fixed tool, the movable tool and the auxiliary tool can be used as electrodes; and applying a pushing force in the horizontal direction to enable the core rod to push the metal pipe in the moving tool to move towards the metal pipe in the fixed tool. When the core rod is utilized, the power supply of the welding machine is electrified to different electrodes twice, so that twice welding in one welding operation process is realized, the core rod and the inner wall of the metal pipe are not welded together, two welding joints are formed at the joint of the metal pipe, namely, the molten metal joint formed by welding, so that the sectional area of the welding joint at the joint of the metal pipe is improved, the strength of the joint of the metal pipe is improved, the joint of the metal pipe can bear larger pipe internal pressure, and the compactness and the tightness of the joint are also improved.
In the prior art including the above patent, when the metal pipes are connected in an extending manner, two metal pipes are generally connected together by using a welding manner, in order to ensure the tightness of the welding seam of the metal pipes, multiple times of welding are generally required, the initial welding procedure is backing welding, the backing welding is generally performed by adopting an arc breaking method, the advanced use of the arc breaking method is to directly weld a triangular welding point for connecting the two metal pipes by using a welding rod on the two metal pipes, then the welding gun leaves the welding point, after the metal pipes rotate a certain angle, the welding gun welds a welding point for connecting the two metal pipes between the two pipes again, the welding is repeated for multiple times, a plurality of triangular welding points are generated at the joint of the two metal pipes, the welding points are connected end to end, the seam of the joint of the two metal pipes is sealed, and then the second layer filling welding and the third layer capping welding are performed. However, the arc breaking method of the backing welding can only be operated by skilled workers, resulting in limited welding efficiency of the metal pipe.
Disclosure of Invention
The invention aims to provide a pipe welding device for a thin-wall metal pipe, and aims to solve the problems that an arc breaking method of backing welding can only be operated by a skilled worker and the welding efficiency of the metal pipe is limited.
In order to achieve the above object, the present invention provides a welding pipe apparatus for a thin-walled metal pipe, comprising a welding table provided with:
a pair of synchronously rotating drums for fixing the metal pipe;
the movable seat is used for supporting the welding gun;
a guide groove including a first guide groove and a second guide groove perpendicular to the first guide groove and communicating with a middle portion of the first guide groove, wherein:
the rotary drum stops rotating, and the movable seat leaves the second guide groove and moves to the side from the middle part of the first guide groove; the rotary drum rotates forward, and the movable seat moves reversely to the middle part of the first guide groove along the first guide groove; the rotary drum reversely rotates, and the movable seat moves to the other side of the first guide groove; the rotary drum stops rotating, and the movable seat returns to the middle part of the second guide groove and enters the second guide groove.
Preferably, a third gear for driving the rotary drum to rotate is rotatably arranged on the welding table, and a notch without gear teeth is arranged on the third gear.
Preferably, the third gear is provided with an eccentric movable column, and the movable column is provided with a pull rope for pulling the movable seat.
Preferably, a movable frame is movably arranged on the welding table, and the movable frame moves to enable the movable seat to be switched between the first guide groove and the second guide groove.
Preferably, the welding table is provided with a push rod for pushing the movable frame, a spring is arranged between the push rod and the movable frame, and the third gear drives the rotary drum to reversely rotate and push the push rod to move.
Preferably, a cam for pushing the push rod is movably arranged on the third gear, and the third gear drives the cam to rotate in the reverse rotation of the rotary drum.
Preferably, the movable seat is movably provided with a mounting plate for supporting the welding gun, the rotary drum is provided with clamping jaws, and the clamping jaws move so as to enable the mounting plate to synchronously move.
Preferably, the welding table is movably provided with a movable plate which is abutted against the clamping jaw, and the movable plate is movably provided with a push block which is inserted into the mounting plate.
Preferably, a top block limiting the movement of the mounting plate is movably arranged on the mounting plate, and the push block is inserted into the mounting plate to unlock the mounting plate.
Preferably, a second gear for driving the rotary drum to rotate continuously is movably arranged on the welding table, and the second gear rotates to enable the movable seat to reciprocate in the first guide groove.
In the technical scheme, the pipe welding equipment for the thin-wall metal pipe provided by the invention has the following beneficial effects: when the metal pipe welding work is carried out, two metal pipes are opposite to each other first and fixed by the rotary drum, the rotary drum is in a static state at this moment, the movable seat is driven to leave the second guide groove and come to the middle part of the first guide groove, the welding head of the welding gun is close to the joint of the metal pipes, then the movable seat is moved to the side edge from the middle part of the first guide groove, the welding head of the welding gun is moved to one of the metal pipes from the middle part of the two metal pipes, a horizontal section is moved out, the metal pipes are subjected to primary welding, then the rotary drum is driven to rotate in the forward direction, the movable seat is moved to the middle part of the first guide groove along the first guide groove, the welding head of the welding gun moves out of a short arc line on the side wall of the metal pipe, the middle part of the two metal pipes returns to the short arc line of symmetry on the other metal pipe, then the movable seat stops rotating, the welding head of the welding gun returns to the middle part of the second guide groove, the welding head of the welding gun moves to the middle part of the two metal pipes, is connected with the first section in a horizontal path, the movable seat enters the second guide groove, the welding joint is enabled to be in the two triangular joint of the two metal pipes, the two welding points are connected with each other in the two triangular joint, and the two triangular joint is formed by the two welding points, and the two triangular joint welding points are welded on the two triangular joint of the two metal pipes.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of the overall structure provided by an embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of a drum according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a movable seat according to an embodiment of the present invention;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is an enlarged view of FIG. 3 at B;
fig. 6 is a schematic structural diagram of a guide groove according to an embodiment of the present invention;
FIG. 7 is an enlarged view of FIG. 6 at C;
fig. 8 is a schematic structural diagram of a synchronizing rod according to an embodiment of the present invention;
fig. 9 is an enlarged view at D in fig. 8;
FIG. 10 is a schematic view of the internal structure of a mounting plate according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a triangle solder joint according to an embodiment of the present invention.
Reference numerals illustrate:
1. a welding table; 111. a rotating drum; 112. a drive ring; 113. a clamping jaw; 114. tenon blocks; 115. a push rod; 116. a gear ring; 117. a first gear; 118. a movable plate; 119. a fourth gear; 121. a driving rod; 122. a drive plate; 123. a cam; 124. a synchronizing lever; 125. a second gear; 126. a third gear; 127. a movable column; 128. a deflector rod; 131. a mounting plate; 1311. a top block; 132. a connecting rod; 1321. a pushing block; 1322. a shifting block; 133. a movable seat; 134. a slide block; 135. a guide groove; 136. a pull rope; 137. a movable frame; 138. a push rod; 141. a first guide groove; 142. and a second guide groove.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 11, a pipe welding device for a thin-walled metal pipe comprises a welding table 1, wherein the welding table 1 is provided with:
a pair of synchronously rotating drums 111 for fixing the metal pipes;
a movable base 133 for supporting the welding gun;
a guide groove 135 including a first guide groove 141 and a second guide groove 142 perpendicular to the first guide groove 141 and communicating with a middle portion of the first guide groove 141, wherein:
the rotation of the drum 111 is stopped, and the movable seat 133 leaves the second guide groove 142 and moves to the side from the middle of the first guide groove 141; the rotary drum 111 rotates forward, and the movable seat 133 moves reversely along the first guide groove 141 to the middle of the first guide groove 141; the rotary drum 111 rotates reversely, and the movable seat 133 moves to the other side of the first guide groove 141; the rotation of the drum 111 is stopped, and the movable seat 133 returns to the middle of the second guide groove 142 and enters the second guide groove 142.
Specifically, rotary drum 111 rotates and installs on welding bench 1, the activity is provided with a plurality of tenon pieces 114 on the rotary drum 111, be provided with the clamping jaw 113 that is used for the centre gripping tubular metal resonator on the tenon piece 114, rotary drum 111 rotates and is provided with the actuating ring 112 that is used for driving a plurality of tenon pieces 114 synchronous rotation, be provided with the plane screw thread on the actuating ring 112, set up the spout with the plane screw thread adaptation on the tenon piece 114, all be provided with ring gear 116 on two rotary drums 111, welding bench 1's inside rotates and is provided with the first gear 117 with rotary drum 111 one-to-one and with ring gear 116 meshing, be provided with the dead lever between two first gears 117.
Further, when the metal tube welding work is performed, two metal tubes are opposite to each other, the connecting seam is opposite to the welding head of the welding gun, the driving ring 112 is rotated, the plane threads on the driving ring 112 move along the sliding grooves on the tenon block 114, the tenon block 114 is pushed to close to the center of the rotary drum 111 with the clamping jaws 113, the clamping jaws 113 fix the metal tubes on the rotary drum 111, the rotary drum 111 is in a static state, the movable seat 133 is driven to leave the second guide groove 142 to reach the middle part of the first guide groove 141, the welding head of the welding gun approaches to the connecting position of the metal tubes, then the movable seat 133 moves to the side edge from the middle part of the first guide groove 141, the welding head of the welding gun moves to one metal tube from the middle part of the two metal tubes, a horizontal section is moved out for preliminary welding of the metal tubes, then the rotary drum 111 is driven to rotate in the forward direction, the movable seat 133 reversely moves to the middle part of the first guide groove 141 along the first guide groove 141, the welding head of the welding gun goes out a short arc line on the side wall of the metal tube and returns to the middle part of the two metal tubes, then the rotary drum 111 reversely rotates, the movable seat 133 moves to the other side of the first guide groove 141, the welding gun goes out a symmetrical short arc line on the other metal tube, then the rotary drum 111 stops rotating, the movable seat 133 returns to the middle part of the second guide groove 142, the welding head of the welding gun returns to the middle part of the two metal tubes from the metal tube and is connected with the first section of horizontal path, the movable seat 133 enters the second guide groove 142, the distance between the welding gun and the metal tubes is increased, the welding is stopped, the two sections of horizontal welding paths and the two sections of connected short arc lines form an independent triangle welding point on the side wall of the joint of the two metal tubes, the welding point connects the two metal tubes together, then the rotary drum 111 is manually rotated, the welding gun repeatedly moves, and a plurality of triangle welding points are welded on the joint of the two metal tubes, and the triangular welding spots are mutually overlapped to form a welding ring at the joint of the two metal pipes, so that the gap between the two metal pipes is sealed.
In the above technical solution, when welding metal pipes, two metal pipes are faced and fixed by the drum 111, at this time, the drum 111 is in a static state, the movable seat 133 is driven to leave the second guide groove 142 and reach the middle of the first guide groove 141, the welding head of the welding gun approaches to the joint of the metal pipes, then the movable seat 133 moves to the side from the middle of the first guide groove 141, the welding head of the welding gun moves to one metal pipe from the middle of the two metal pipes and leaves a horizontal section, the preliminary welding is performed on the metal pipes, then the drum 111 is driven to rotate forward, the movable seat 133 moves to the middle of the first guide groove 141 along the first guide groove 141 in a reverse direction, the welding head of the welding gun leaves a short arc line on the side wall of the metal pipes and returns to the middle of the two metal pipes, then the drum 111 rotates in a reverse direction, the movable seat 133 moves to the other side of the first guide groove 141, the welding gun goes out symmetrical short arc lines on the other metal tube, then the rotating drum 111 stops rotating, the movable seat 133 returns to the middle part of the second guide groove 142, the welding head of the welding gun returns to the middle part of the two metal tubes from the metal tube and is connected with the first section of horizontal path, the movable seat 133 enters the second guide groove 142, the distance between the welding gun and the metal tubes is increased, the welding is stopped, the two sections of horizontal welding paths and the two sections of connected short arc lines form an independent triangle welding spot on the side wall of the joint of the two metal tubes, the welding spot connects the two metal tubes together, then the rotating drum 111 is manually rotated, the welding gun repeatedly moves, a plurality of triangle welding spots are welded on the joint of the two metal tubes, the triangle welding spots are mutually overlapped, a welding ring is formed at the joint of the two metal tubes, and a gap between the two metal tubes is sealed.
As a further provided embodiment of the present invention, a third gear 126 for driving the rotation of the drum 111 is rotatably provided on the welding table 1, and a notch without gear teeth is provided on the third gear 126.
Specifically, the third gear 126 is meshed with the first gear 117.
Further, when the teeth of the third gear 126 mesh with the first gear 117, the third gear 126 can drive the drum 111 to rotate through the first gear 117, and when the notch of the third gear 126 without teeth is matched with the first gear 117, the third gear 126 can rotate independently, and a worker can also rotate the drum 111 and the metal tube manually.
As a further embodiment of the present invention, the third gear 126 is provided with an eccentric movable column 127, and the movable column 127 is provided with a pulling rope 136 for pulling the movable seat 133.
Specifically, a spring is disposed between the movable seat 133 and the welding table 1, and the pull rope 136 is a pull rope with a certain expansion and contraction capability.
Further, during the rotation of the third gear 126, the movable post 127 pulls the movable seat 133 through the pull cord 136, so that the movable seat 133 moves inside the guiding slot 135.
As still another embodiment further provided by the present invention, a movable frame 137 is movably provided on the welding table 1, and the movable frame 137 moves to switch the movable base 133 between the first guide groove 141 and the second guide groove 142.
Specifically, the space in the middle of the movable frame 137 is the same as the space in the first guide groove 141, the movable frame 137 is slidably mounted on the welding table 1, and the bottom of the movable seat 133 is provided with a square slider 134 adapted to the guide groove 135.
Further, when the movable seat 133 is located in the middle of the first guide groove 141, the sliding block 134 faces the second guide groove 142, and at this time, the movable frame 137 moves to push the sliding block 134 into the second guide groove 142, so as to drive the movable seat 133 to move away from the metal tube.
As a further embodiment of the present invention, a push rod 138 for pushing the movable frame 137 is provided on the welding table 1, a spring is provided between the push rod 138 and the movable frame 137, and the third gear 126 drives the drum 111 to rotate in the opposite direction to push the push rod 138 to move.
Specifically, a spring is provided between the push rod 138 and the soldering station 1.
Further, in the process that the third gear 126 drives the drum 111 to rotate reversely, the push rod 138 is pushed to compress the spring between the push rod 138 and the movable frame 137, meanwhile, the sliding block 134 moves in the first guide groove 141, when the sliding block 134 faces the first guide groove 141, the spring releases elastic potential energy to push the movable frame 137 to move, and the movable frame 137 sends the sliding block 134 into the second guide groove 142.
As a further embodiment of the present invention, a cam 123 for pushing the push rod 138 is movably disposed on the third gear 126, and the third gear 126 drives the cam 123 to rotate during the reverse rotation of the drum 111.
Specifically, a motor is arranged in the welding table 1, a driving rod 121 is arranged at the output end of the motor, a driving disc 122 for driving a cam 123 to rotate is arranged on the driving rod 121, and the cam 123 is fixedly arranged on the driving disc 122.
As a further embodiment of the present invention, the movable base 133 is movably provided with a mounting plate 131 for supporting the welding gun, and the drum 111 is provided with a clamping jaw 113, and the clamping jaw 113 moves to move the mounting plate 131 synchronously.
Specifically, the movable seat 133 is provided with a chute adapted to the mounting plate 131.
Further, when the clamping jaw 113 is moved to fix the metal pipe, the mounting plate 131 also drives the welding gun to move relative to the movable seat 133, so that the welding gun approaches the metal pipe, and when the clamping jaw 113 is used for fixing the metal pipe, the welding head of the welding gun can keep a proper distance from the metal pipe, so that welding work can be performed.
As a further embodiment of the present invention, the movable plate 118 abutting against the clamping jaw 113 is movably provided on the welding table 1, and the push block 1321 inserted into the mounting plate 131 is movably provided on the movable plate 118.
Specifically, the tenon block 114 is provided with a push rod 115 for pushing and pushing the mounting plate 131, a spring is arranged between the movable plate 118 and the welding table 1, the movable plate 118 is provided with a connecting rod 132 for connecting the mounting plate 131, and the connecting rod 132 is specifically a telescopic rod.
Further, in the process that the clamping jaw 113 approaches the metal tube, the ejector rod 115 is closed towards the center of the rotary drum 111 along with the clamping jaw 113, the spring pushes the movable plate 118 to move, and the movable plate 118 drives the mounting plate 131 to move through the connecting rod 132.
As still another embodiment further provided by the present invention, a top block 1311 limiting its movement is movably provided on the mounting plate 131, and a push block 1321 is inserted into the mounting plate 131 to unlock the mounting plate 131.
Specifically, a spring is disposed between the top block 1311 and the mounting plate 131, the push block 1321 is movably mounted at the end of the connecting rod 132, the push block 1322 is disposed on the push block 1321, and a rubber layer matched with the top block 1311 is covered on the inner wall of the chute on the movable seat 133.
Further, in the process of fixing the metal tube, the pulling block 1322 is manually pulled, the pushing block 1321 is inserted into the mounting plate 131 and pushes the top block 1311 to separate the top block 1311 from the movable seat 133, at this time, the movable plate 118 drives the mounting plate 131 to move along with the clamping jaw 113 to enable the welding gun to approach the metal tube, after the metal tube is fixed, the pulling block 1322 is manually pulled back, the pushing block 1321 leaves the mounting plate 131, the spring pushes the top block 1311 to move, the top block 1311 pushes against the movable seat 133 under the pushing of the spring, the top block 1311 is partially embedded into the rubber layer, and the mounting plate 131 is fixed on the movable seat 133.
As a further embodiment of the present invention, the welding table 1 is movably provided with a second gear 125 for driving the drum 111 to rotate continuously, and the second gear 125 rotates to reciprocate the movable base 133 in the first guide groove 141.
Specifically, a cuboid synchronizing rod 124 is axially slidably disposed on the driving rod 121, a second gear 125 and a third gear 126 are disposed on the synchronizing rod 124, a shift lever 128 extending to the outer side of the welding table 1 is rotatably disposed on the synchronizing rod 124, and a fourth gear 119 meshed with the third gear 126 and the first gear 117 is disposed on the welding table 1.
Further, when the metal tube welding work is performed, the shifting block 1322 is manually shifted, the shifting block 1321 is inserted into the mounting plate 131 and pushes the top block 1311, so that the top block 1311 is separated from the movable seat 133, at the moment, the mounting plate 131 can move relative to the movable seat 133, the two metal tubes are opposite to each other, and the connecting seam is opposite to the welding head of the welding gun, the driving ring 112 is rotated, the plane threads on the driving ring 112 move along the sliding grooves on the tenon block 114, the tenon block 114 is pushed to approach the center of the rotary drum 111 with the clamping jaw 113, the ejector rod 115 approaches the center of the rotary drum 111, the movable plate 118 is pushed by the spring to move, the movable plate 118 drives the mounting plate 131 and the welding gun to approach the joint of the two metal tubes through the connecting rod 132 and the pushing block 1321, when the clamping jaw 113 fixes the metal tube on the rotary drum 111, the welding head of the welding gun can keep a proper distance with the metal tube, the manually shifted back the shifting block 1322 is separated from the mounting plate 131, the spring abuts against the pushing block 1311 to move, the pushing block 1311 abuts against the spring under the pushing of the clamping jaw 113, and the movable seat 131 is fixed on the movable seat 133;
at this time, a gap without gear teeth on the third gear 126 is matched with the first gear 117, a sliding block 134 on the movable seat 133 is positioned at the center of the first guide groove 141, a motor drives the third gear 126 to rotate through a synchronous rod 124, a movable column 127 eccentrically arranged on the third gear 126 pulls a pull rope 136, the pull rope 136 drives the movable seat 133 of the sliding block 134 to move, the sliding block 134 approaches to the side edge of the first guide groove 141, a spring between the movable seat 133 and the welding table 1 is stretched, the movable seat 133 drives a welding gun to move through a mounting plate 131, a welding head of the welding gun moves onto one metal pipe from the middle part of the two metal pipes, and a horizontal section is moved out to perform primary welding on the metal pipes;
then the teeth on the third gear 126 are meshed with the first gear 117, the third gear 126 drives the first gear 117 to rotate, the first gear 117 drives the rotary drum 111 to rotate forwards through the meshed gear ring 116, the pull rope 136 is loosened, the spring pulls the movable seat 133 to move, the movable seat 133 moves reversely along the first guide groove 141 to the middle part of the first guide groove 141, the welding head of the welding gun moves out of a short arc line on the side wall of the metal tube and returns to the middle part of the two metal tubes, the third gear 126 continues to rotate, the teeth on the third gear 126 are separated from the first gear 117 again and meshed with the fourth gear 119, the fourth gear 119 drives the rotary drum 111 to rotate reversely, the movable seat 133 moves to the other side of the first guide groove 141, the welding gun moves out of a symmetrical short arc line on the other metal tube, the cam 123 rotates and pushes the push rod 138, and the push rod 138 compresses the spring between the push rod 138 and the movable frame 137;
the gear-tooth-free notch on the third gear 126 is matched with the first gear 117 again, the rotation of the rotary drum 111 is stopped, the movable seat 133 is pulled by the pull rope 136 to return to the middle part of the second guide groove 142, the welding head of the welding gun returns to the middle part of the two metal pipes from the metal pipes and is connected with the first section of horizontal path, the spring between the push rod 138 and the movable frame 137 pushes the sliding block 134 on the movable seat 133, the sliding block 134 enters the second guide groove 142, the distance between the welding gun and the metal pipes is increased, the welding is stopped, the two sections of horizontal welding paths and the short arc lines connected with the two sections form an independent triangle welding point on the side wall of the joint of the two metal pipes, the welding point connects the two metal pipes together, then the rotary drum 111 is manually rotated, the rotary drum 111 rotates a small angle with the metal pipes, the welding gun repeatedly moves, a plurality of triangles are welded on the joint of the two metal pipes, the triangle welding points are mutually overlapped, a welding ring is formed at the joint of the two metal pipes, and a gap between the two metal pipes is sealed;
after the backing welding is finished, the deflector rod 128 is stirred, the deflector rod 128 drives the second gear 125 and the third gear 126 to rotate, the third gear 126 is separated from the first gear 117, the second gear 125 is meshed with the first gear 117, at the moment, the motor drives the second gear 125 to rotate through the synchronous rod 124, the second gear 125 drives the rotary drum 111 to continuously rotate forwards through the third gear 126, the movable column 127 on the third gear 126 drives the movable seat 133 through the pull rope 136, the movable seat 133 moves back and forth in the first guide groove 141, and the welding gun performs back and forth filling welding on the basis of the backing welding, so that the sealing of the joint of two metal pipes is ensured;
the drive ring 112 is then rotated and the jaws 113 release the metal tube, which can then be removed.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims (10)

1. The pipe welding equipment for the thin-wall metal pipe is characterized by comprising a welding table (1), wherein the welding table (1) is provided with:
a pair of synchronously rotating drums (111) for fixing the metal pipes;
a movable seat (133) for supporting the welding gun;
-a guiding slot (135) comprising a first guiding slot (141) and a second guiding slot (142) perpendicular to said first guiding slot (141) and communicating with the middle of said first guiding slot (141), wherein:
the rotary drum (111) stops rotating, and the movable seat (133) leaves the second guide groove (142) and moves to the side from the middle part of the first guide groove (141); the rotary drum (111) rotates forward, and the movable seat (133) moves reversely to the middle part of the first guide groove (141) along the first guide groove (141); the rotary drum (111) rotates reversely, and the movable seat (133) moves to the other side of the first guide groove (141); the rotary drum (111) stops rotating, and the movable seat (133) returns to the middle part of the second guide groove (142) and enters the second guide groove (142).
2. A welding apparatus for thin-walled metal tubes according to claim 1 characterized in that a third gear (126) for driving the rotation of the drum (111) is rotatably provided on the welding table (1), and that a gear-less gap is provided on the third gear (126).
3. A tube welding apparatus for thin-walled metal tubes according to claim 2 characterized in that the third gear (126) is provided with an eccentric movable post (127), the movable post (127) being provided with a pull rope (136) for pulling the movable seat (133).
4. A welding apparatus for thin-walled metal tubes according to claim 2 characterized in that a movable frame (137) is movably provided on the welding table (1), the movable frame (137) being moved to switch the movable seat (133) between the first guide groove (141) and the second guide groove (142).
5. A pipe welding apparatus for thin-walled metal pipes according to claim 4 characterized in that the welding table (1) is provided with a push rod (138) for pushing the movable frame (137), a spring is provided between the push rod (138) and the movable frame (137), and the third gear (126) drives the rotary drum (111) to rotate in the opposite direction to push the push rod (138) to move.
6. A pipe welding apparatus for thin-walled metal pipe according to claim 5 characterized in that the third gear (126) is movably provided with a cam (123) for pushing the push rod (138), and the third gear (126) drives the rotation of the cam (123) in the reverse rotation of the drum (111).
7. A tube welding apparatus for thin-walled metal tubes according to claim 1 characterized in that the movable base (133) is movably provided with a mounting plate (131) for supporting a welding gun, the drum (111) is provided with a jaw (113), and the jaw (113) moves to move the mounting plate (131) synchronously.
8. A tube welding apparatus for thin-walled metal tubes according to claim 7 characterized in that the welding table (1) is movably provided with a movable plate (118) abutting against the jaws (113), the movable plate (118) being movably provided with a push block (1321) inserted into the mounting plate (131).
9. A pipe welding apparatus for thin-walled metal pipes according to claim 8 characterized in that the mounting plate (131) is movably provided with a top block (1311) restricting its movement, and the push block (1321) is inserted into the mounting plate (131) to unlock the mounting plate (131).
10. A welding apparatus for thin-walled metal tubes according to claim 1 characterized in that the welding station (1) is movably provided with a second gear (125) for driving the drum (111) to rotate continuously, the second gear (125) rotating to reciprocate the movable seat (133) in the first guide groove (141).
CN202410103736.5A 2024-01-25 2024-01-25 Pipe welding equipment for thin-wall metal pipe Active CN117620510B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113751953A (en) * 2021-08-12 2021-12-07 宿迁小鲤工业设计有限公司 Clamping device is used in nonrust steel pipe welding with adjustable
CN114406544A (en) * 2022-02-10 2022-04-29 深圳盟豪机械制造有限公司 Pipeline all-position automatic welding machine
CN116336259A (en) * 2023-03-03 2023-06-27 北京石油化工学院 Pipeline integrated laying equipment and use method
CN116921958A (en) * 2023-09-11 2023-10-24 河南省锅炉压力容器检验技术科学研究院 Novel barrel girth welding device
CN117102788A (en) * 2023-10-12 2023-11-24 山东汇鑫板业有限公司 Cold-rolled sheet forming welding system
CN117283228A (en) * 2023-10-30 2023-12-26 宁海县兴海水务建设工程有限公司 Pipeline welding device and application method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113751953A (en) * 2021-08-12 2021-12-07 宿迁小鲤工业设计有限公司 Clamping device is used in nonrust steel pipe welding with adjustable
CN114406544A (en) * 2022-02-10 2022-04-29 深圳盟豪机械制造有限公司 Pipeline all-position automatic welding machine
CN116336259A (en) * 2023-03-03 2023-06-27 北京石油化工学院 Pipeline integrated laying equipment and use method
CN116921958A (en) * 2023-09-11 2023-10-24 河南省锅炉压力容器检验技术科学研究院 Novel barrel girth welding device
CN117102788A (en) * 2023-10-12 2023-11-24 山东汇鑫板业有限公司 Cold-rolled sheet forming welding system
CN117283228A (en) * 2023-10-30 2023-12-26 宁海县兴海水务建设工程有限公司 Pipeline welding device and application method thereof

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