CN113714589A

CN113714589A - Automatic welding machine for steel pipes

Info

Publication number: CN113714589A
Application number: CN202111039531.8A
Authority: CN
Inventors: 童秋明; 叶寿喜; 叶博睿; 谢舍东; 田超; 石付宗; 金伟建
Original assignee: Zhejiang Disseminator Metal Decoration Material Co Ltd
Current assignee: Zhejiang Disseminator Metal Decoration Material Co Ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2021-11-30

Abstract

The invention discloses an automatic welding machine for steel pipes, which comprises a welding module, a welding wire barrel, a welding wire protective sleeve, an installation underframe, a guide scroll device, a driving device and a welding trolley, wherein the installation underframe comprises a transverse magnet, a longitudinal magnet and a base, the transverse magnet and the longitudinal magnet are arranged vertically to each other and are used for being adsorbed on the steel pipes, the scroll device and the driving device are arranged on the base, the welding trolley is provided with a magnetic suction wheel which adsorbs the welding trolley on the steel pipes, and the welding trolley is also provided with a welding head. The invention provides equipment capable of automatically welding steel pipes, which can effectively weld the steel pipes in certain vision blind areas, solves the problems of insufficient welding, desoldering and no welding caused by forced welding of the steel pipes due to vision problems, improves the welding quality of the steel pipes, improves the working efficiency and lightens the labor intensity of operators.

Description

Automatic welding machine for steel pipes

Technical Field

The invention relates to the technical field of steel pipe welding, in particular to an automatic welding machine for steel pipes.

Background

The steel pipe is seen everywhere in our life, and all kinds of fire hose, gas transportation pipe, oil transportation pipe etc. but in all kinds of mills, fire hose or transportation pipe all set up in the corner of wall, and this kind of steel pipe is long distance steel pipe, all need weld on the spot, but set up in corner position, and the welding workman hardly sees the joint line of steel pipe, consequently hardly welds it.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an automatic welding machine for steel pipes.

In order to solve the technical problems, the invention is solved by the following technical scheme: a automatic weld machine for steel pipe, including welding module, welding wire bucket and welding wire protective sheath, still including installation chassis, direction scroll device, drive arrangement and welding dolly, the installation chassis includes horizontal magnet, vertical magnet and base, horizontal magnet sets up with vertical magnet mutually perpendicular, and it is used for adsorbing on the steel pipe, scroll device and drive arrangement all set up on the base, the last magnetic attraction wheel that is provided with of welding dolly, it adsorbs the welding dolly on the steel pipe, and still is provided with the soldered connection on the welding dolly, be provided with the direction scroll in the direction scroll device, its one end sets up on the welding dolly, drive arrangement can drive the scroll back-and-forth movement that leads to drive the welding dolly and move on the steel pipe, weld the steel pipe gap.

The welding trolley has the beneficial effects that the welding trolley can weld steel pipes with different diameters, the welding trolley is guided by the guide scroll device, and the driving device drives the guide scroll to slide forwards, so that a gap at an invisible position can be welded.

In the above scheme, preferably, the welding trolley further includes a power magnetic suction wheel, a belt, a first rolling wheel, a second rolling wheel, a frame and a locking mechanism, the welding head is divided into a front end welding head and a rear end welding head, a welding wire passes through the middle of the welding head, the first rolling wheel and the second rolling wheel are respectively pressed and contacted on the welding wire up and down, the first rolling wheel and the second rolling wheel are respectively provided with a flat gear, the flat gear and the flat gear are meshed, the first rolling wheel is further provided with a first belt pulley, the power magnetic suction wheel is rotatably arranged on the frame, a second belt pulley is arranged on the power magnetic suction wheel, the first belt pulley and the second belt pulley are connected together through the belt, and the belt is further provided with a locking device for locking the belt so that the belt is not rotated when the welding trolley is not pressed and contacted on the steel pipe.

In the above scheme, preferably, the locking device includes an upper press block, a lower press block, a guide pillar, a first elastic member and a top contact block, at least 2 guide pillars are arranged below the upper press block, the bottom of the guide pillar is provided with the top contact block, the guide pillar penetrates through the bottom of the lower press block and the bottom of the frame and is slidably arranged on the lower press block and the frame, the first elastic member is slidably arranged on the guide pillar, two ends of the first elastic member respectively abut against the upper surface of the top contact block and the bottom surface of the frame, and the belt ring is arranged between the upper press block and the lower press block.

In the above scheme, preferably, the left side and the right side around the frame all are provided with the magnetism and inhale the wheel, and wherein one wheel is power magnetism and inhale the wheel, and all magnetism inhale the wheel and all have magnetism, and all unidirectional rotation sets up on the frame, the front end welding head stretches out the welding wire and aims at on the line of the minimum of two magnetism inhale wheels in front end.

The locking device has the beneficial effects that only when the four wheels of the trolley are in pressure-equalizing contact with the steel pipe, the locking device can unlock the belt, so that the belt can transmit power to push the welding wire to advance and weld a gap.

In the above scheme, it is preferred, still include dolly initial platform and welding wire protective sheath leading wheel on the base, dolly initial platform keeps the same level with the bottom surface of horizontal magnet, its horizontal magnet is provided with 2 with vertical magnet relative dolly initial platform bilateral symmetry, welding wire protective sheath leading wheel rotates and sets up on dolly initial platform, and its outer wall top touches at the scrolllower surface of direction, the welding wire protective sheath passes through welding wire protective sheath leading wheel and sets up on the welding dolly.

The automatic welding device has the beneficial effects that the automatic welding device can be adsorbed on the steel pipe more stably, and the welding trolley can better enter a welding work area.

In the above-mentioned scheme, it is preferred, the spiral device still includes the spiral mounting bracket, be provided with spiral installation cavity, spiral installation axle and spiral guiding hole on the spiral mounting bracket, the setting of direction spiral inner circle is on the spiral installation axle, and the outer end is used in the afterbody of welding the dolly through spiral guiding hole, I donate the guiding hole and can not change by the left and right sides direction when the direction spiral is pushed away.

The welding trolley has the beneficial effects that the welding trolley is limited in the left and right directions, so that the welding trolley is not deviated, gaps are welded more accurately, and the guide scroll is in a scroll design, so that the welding trolley is pushed to slide on a steel pipe when the welding trolley is arranged on the steel pipe, the guide scroll provides auxiliary pressure contact force to the center of the steel pipe for the welding trolley, and the welding trolley is adsorbed on the outer wall of the steel pipe more easily to weld the outer wall of the steel pipe.

In the above-mentioned scheme, preferably, drive arrangement includes drive shaft and driving motor, the drive shaft sets up on driving motor, driving motor sets up on the base, and drive shaft surface pressure touches on the direction scroll, the drive shaft rotates the front end that drives the direction scroll and pushes out along the scroll guiding hole.

The welding tractor has the beneficial effects that power is provided for the guide scroll, so that the guide scroll can drive the welding tractor to move back and forth.

In the above scheme, preferably, welding wire protective sheath one end sets up on the rear end welding head of welding carriage, and the other end sets up on the base, the welding wire bucket rotates and sets up on the base, and the welding wire on its welding wire bucket passes through the welding wire protective sheath and finally wears out from the front end soldered connection of welding carriage.

The invention has the beneficial effects that: the invention provides equipment capable of automatically welding steel pipes, which can effectively weld the steel pipes in certain vision blind areas, solves the problems of insufficient welding, desoldering and no welding caused by forced welding of the steel pipes due to vision problems, improves the welding quality of the steel pipes, improves the working efficiency and lightens the labor intensity of operators.

Drawings

FIG. 1 is a schematic diagram of the present invention.

FIG. 2 is a schematic diagram of the mechanism of the present invention.

FIG. 3 is a cross-sectional view of a welding apparatus of the present invention.

FIG. 4 is a schematic view of a scroll mount of the present invention.

FIG. 5 is a schematic view of the welding carriage of the present invention.

FIG. 6 is a schematic view of the interior of the welding carriage of the present invention.

FIG. 7 is a cross-sectional view of the welding carriage of the present invention.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings: with reference to figures 1-7 of the drawings,

a automatic weld machine for steel pipe, including welding module, welding wire bucket 5 and welding wire protective sheath 6, installation chassis 1, direction scroll device 2, drive arrangement 3 and welding dolly 4, installation chassis 1 includes horizontal magnet 11, vertical magnet 12, base 13, dolly initial platform 14, welding wire protective sheath leading wheel 15, horizontal magnet 11 sets up with vertical magnet 12 mutually perpendicular, and sets up on base 13 through vertical magnet 12, and both surfaces all have magnetism, and it is used for adsorbing the device on the steel pipe, and it is provided with 2 groups about on base 13, leaves the space in the middle of, is provided with dolly initial platform 14 in the space department, and it links together with vertical magnet 12 about with, and the lower bottom surface of its upper plane and horizontal magnet 11 is equal.

The transverse magnets 11 and the longitudinal magnets 12 are arranged so that the magnets can be adsorbed on steel pipes with different diameters to be welded.

The welding trolley 4 comprises a magnetic suction wheel 41, a welding head 42, a power magnetic suction wheel 43, a belt 44, a first rolling wheel 45, a second rolling wheel 46, a frame 47 and a locking mechanism 48, wherein the magnetic suction wheel 41 is rotatably arranged on the frame 47, the power magnetic suction wheel 43 is rotatably arranged on the frame 47 in a one-way manner, the power magnetic suction wheel 43 comprises a second belt wheel 431, the welding head 42 comprises a front end welding head 421 and a rear end welding head 422, a neutral position is reserved between the front end welding head 421 and the rear end welding head 422, the first rolling wheel 45 and the second rolling wheel 46 are positioned in the neutral position and are rotatably arranged on the frame 47, the welding wire extending from the front end welding head 421 is aligned with the lowest point connecting line of the two magnetic suction wheels 41 at the front end, the first rolling wheel 45 comprises a first belt wheel 451, a first friction wheel 452 and a first flat gear 453, the second rolling wheel 46 comprises a second friction wheel 461 and a second flat gear 462, the first and

second pinions

453 and 462 are engaged, the first and

second friction wheels

452 and 461 act on the welding wire together, the first and

second friction wheels

452 and 461 rotate to drive the welding wire to move forward and backward, and the second pulley 431 and the first pulley 451 are connected by a belt 44.

The power on the power magnetic suction wheel 43 is transmitted to the first rolling wheel 45, the first rolling wheel 45 is transmitted to the second rolling wheel 46, the first rolling wheel 45 and the second rolling wheel 46 act together to push the welding wire forward, the welding wire can stretch out along with the welding trolley in a linkage mode when the welding trolley moves forward, and the welding wire stops stretching out when the power magnetic suction wheel 43 stops rotating.

The belt 44 is further provided with a locking device 48, the locking device 48 comprises an upper pressing block 481, a lower pressing block 482, a guide pillar 483, a first elastic piece 484 and a top contact block 485, at least 2 guide pillars 483 are arranged below the upper pressing block 481, the bottom of each guide pillar 483 is provided with the top contact block 485, each guide pillar 483 penetrates through the lower pressing block 482 and the bottom of the frame 47 and is arranged on the upper side in a sliding manner, the first elastic piece 484 is arranged on the guide pillars 483 in a sliding manner, two ends of each elastic piece are respectively in top contact with the upper surface of the top contact block 485 and the bottom surface of the frame 47, and the belt 44 is arranged between the upper pressing block 481 and the lower pressing block 482 in a penetrating manner.

When the welding trolley 4 is in press contact with a steel pipe, when only a front wheel or a rear wheel is in press contact with the steel pipe, the top contact block 485 cannot be in top contact with the outer wall of the steel pipe, the front magnetic suction wheel 41 and the rear magnetic suction wheel 41 on the welding trolley 4 are in pressure contact with the steel pipe, the middle of the steel pipe between the front magnetic suction wheel 41 and the rear magnetic suction wheel 41 is raised at the moment, the top contact block 485 on the locking device 48 is also in top contact with the steel pipe, the upper pressing block 481 is lifted upwards under the action of the top contact block 485, a neutral position is formed between the upper pressing block 481 and the lower pressing block 482, the upper pressing block 481 and the lower pressing block 482 are not in contact with the belt 44, the belt 44 between the upper pressing block and the lower pressing block can rotate freely, and cannot rotate when the welding trolley 4 is separated from the steel pipe, and the top contact block 485 is separated from the top contact with the steel pipe, so that the upper pressing block 481 is in downward press contact with the lower pressing block 482 under the action of the first elastic member 484.

Scroll device 2 is including guide scroll 21 and scroll mounting bracket 22, be provided with scroll installation cavity 23, scroll installation axle 24, scroll guiding hole 25 and leading wheel contact hole 26 on scroll mounting bracket 22, guide scroll 21 inner circle sets up on scroll installation axle 24, and the outer end is used in the afterbody of welding dolly 4 through scroll guiding hole 25, drive arrangement 3 includes drive shaft 31 and driving motor 32, drive shaft 31 sets up on driving motor 32, driving motor 32 sets up on base 13, and drive shaft 31 surface pressure touches on guide scroll 21.

Wherein driving motor 32 starts to drive shaft 31 and rotates to drive guide scroll 21 front end and push out along scroll guiding hole 25, because the direction of scroll guiding hole 25, further guide scroll 21 material is elastic metal material itself, make itself have certain rigidity, consequently guide scroll 21 is when pushing out forward, its left and right directions is injectd, because guide scroll 21 itself is the scroll design, consequently pushing out forward, when promoting welding dolly 4 to slide on the steel pipe, it still can provide an auxiliary pressure contact force to the steel pipe centre of a circle for welding dolly 4, and then supplementary welding dolly slides along the steel pipe outer wall, when guide scroll 21 is stretching out outwards, the remaining scroll in scroll installation cavity 23 stirs each other tightly, makes it have certain elastic potential energy.

Welding wire protective sheath 6 one end sets up on welding tractor 4's rear end soldered connection 422, and the other end sets up on base 13 through wire protective sheath leading wheel 15, welding wire bucket 5 rotates and sets up on base 13, and the welding wire on its welding wire bucket 5 finally wears out from welding tractor 4's front end soldered connection 421 through welding wire protective sheath 6, and wherein welding wire protective sheath leading wheel 15 is used for giving welding wire protective sheath 6 direction, and welding wire protective sheath leading wheel 15 is located leading wheel contact hole 26, and its outer lane top is touched on the lower surface of direction spiral 21.

Wherein when the guide scroll 21 is pushing the welding tractor 4 to slide forward, drive the welding wire protective sheath leading wheel 15 to rotate simultaneously, make its supplementary welding wire protective sheath 6 release forward, follow welding tractor 4 and move together, when the guide scroll 21 retracts, also drive welding wire protective sheath leading wheel 15 to rotate, make its supplementary welding wire protective sheath 6 retract.

The working principle or the using method is as follows:

when a steel pipe needs to be welded, the welding trolley in the initial state on the automatic welding machine is aligned to a steel pipe gap, then the transverse magnet 11 is erected on the upper end arc surface of the steel pipe and is pushed to enable the longitudinal magnet 12 to contact the side wall of the steel pipe, fine position adjustment is carried out, the welding head 42 on the welding trolley 4 is aligned to the welding gap, and at the moment, the automatic welding machine is completely adsorbed on the steel pipe due to the action of the magnet.

At this time, the automatic welding machine is started, the welding module is started, the driving motor 32 is started, the driving shaft 31 is driven to rotate, the guide scroll 21 is driven to push forwards along the scroll guide hole 25, the welding trolley 4 is enabled to leave the trolley initial platform 14 and to contact the outer wall of the steel pipe, the wheels on the welding trolley 4 are all magnetic, the welding trolley 4 can be adsorbed on the steel pipe, only the front wheel of the welding trolley 4 is adsorbed on the outer wall of the steel pipe at this time, the locking device 48 is not disengaged, the welding wire does not extend forwards and is not welded, the guide scroll 21 continues to extend outwards at this time, the welding trolley 4 is driven to slide forwards, when the front wheel and the rear wheel on the welding trolley 4 are adsorbed on the steel pipe, the top contact block 485 on the locking device 48 is in contact with the steel pipe, at this time, the upper press block 481 is lifted upwards under the action of the top contact block 485, and a neutral position is reserved between the upper press block 481 and the lower press block 482, the two are not contacted with the belt 44, so that the belt 44 can rotate freely, thereby realizing power transmission, and at the moment, the power magnetic suction wheel 43 is already adsorbed on the steel pipe, so that while the guide scroll 21 pushes the welding carriage 4 forward to slide, the power magnetic suction wheel 43 and the outer wall of the steel pipe rotate relatively, thereby driving the first belt pulley 451 to rotate, the second belt pulley 431 and the first belt pulley 451 are connected through the belt 44, and at the moment, the belt 44 is in an unlocked state, so that the first belt pulley 451 transmits power to the second belt pulley 431, the first rolling wheel 45 rotates, the first rolling wheel 45 and the second rolling wheel 46 are engaged through a gear, thereby driving the second rolling wheel 46 to rotate while the first rolling wheel 45 rotates, so that the first friction wheel 452 and the second friction wheel 461 both rotate, so that the welding wire in the middle of the first rolling wheel 45 is pushed forward to act on the gap of the steel pipe, so that the welding trolley starts to weld the steel pipe, at the moment, the guide scroll 21 is pushed forwards continuously, and the welding trolley 4 is pushed to walk around the steel pipe for one circle to weld the whole circle of the steel pipe.

After the whole welding cycle is completed, the welding module is stopped, and the driving motor 32 starts to rotate reversely, so as to drive the driving shaft 31 to rotate reversely, drive the guide scroll 21 to retract inwards, and return the welding trolley 4 to the initial position.

In the process of the recovery of the welding tractor, the power magnetic suction wheel 43 is arranged on the frame 47 in a unidirectional rotation mode, so that the power magnetic suction wheel 43 does not rotate in the process of the recovery, and a welding wire does not extend forwards.

And the guide scroll 21 drives the welding wire protective sleeve guide wheel 15 to rotate when pushing the welding trolley 4 to slide forwards, so that the auxiliary welding wire protective sleeve 6 is pushed forwards and moves together with the welding trolley 4, and when the guide scroll 21 retracts, the welding wire protective sleeve guide wheel 15 is also driven to rotate reversely, so that the auxiliary welding wire protective sleeve 6 retracts.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A automatic weld machine for steel pipe, including welding module, welding wire bucket (5) and welding wire protective sheath (6), its characterized in that: the steel pipe welding machine further comprises an installation underframe (1), a guide scroll device (2), a driving device (3) and a welding trolley (4), wherein the installation underframe (1) comprises a transverse magnet (11), a longitudinal magnet (12) and a base (13), the transverse magnet (11) and the longitudinal magnet (12) are perpendicular to each other and are used for being adsorbed on a steel pipe, the scroll device (2) and the driving device (3) are arranged on the base (13), a magnetic suction wheel (41) is arranged on the welding trolley (4) and adsorbs the welding trolley (4) on the steel pipe, a welding head (42) is further arranged on the welding trolley (4), a guide scroll (21) is arranged in the guide scroll device (2), one end of the guide scroll is arranged on the welding trolley (4), and the driving device (3) can drive the guide scroll (21) to move back and forth on the steel pipe so as to drive the welding trolley to move on the steel pipe, and welding the steel pipe gap.

2. The automatic welding machine for steel pipes according to claim 1, characterized in that: the welding trolley (4) further comprises a power magnetic suction wheel (43), a belt (44), a first rolling wheel (45), a second rolling wheel (46), a frame (47) and a locking mechanism (48), wherein the welding head (42) is divided into a front end welding head (421) and a rear end welding head (422), welding wires pass through the middle of the welding head, the first rolling wheel (45) and the second rolling wheel (46) are respectively pressed on the welding wires up and down, the first rolling wheel (45) and the second rolling wheel (46) are respectively provided with a flat gear, the flat gears and the flat gears are meshed, a first belt pulley (451) is further arranged on the first rolling wheel (45), the power magnetic suction wheel (43) is rotatably arranged on the frame (47) and provided with a second belt pulley (431), the first belt pulley (451) and the second belt pulley (431) are connected together through the belt (44), and the belt (44) is further provided with the locking mechanism (48), the locking device is used for locking the belt (44) when the welding trolley (4) is not pressed on the steel pipe, so that the belt is not rotated.

3. The automatic welding machine for steel pipes according to claim 2, characterized in that: the locking device (48) comprises an upper pressing block (481), a lower pressing block (482), a guide post (483), a first elastic piece (484) and a top contact block (485), wherein at least 2 guide posts (483) are arranged below the upper pressing block (481), the bottom of each guide post (483) is provided with the top contact block (485), each guide post (483) penetrates through the bottom of the lower pressing block (482) and the bottom of the frame (47) and is arranged on the lower pressing block (482) and the frame (47) in a sliding mode, the first elastic piece (484) is arranged on the guide post (483) in a sliding mode, two ends of the first elastic piece are respectively in top contact with the upper surface of the top contact block (485) and the bottom surface of the frame (47), and the belt (44) is annularly arranged between the upper pressing block (481) and the lower pressing block (482).

4. The automatic welding machine for steel pipes according to claim 3, characterized in that: the magnetic suction wheel (41) is arranged on the left side and the right side of the front portion and the rear portion of the frame (47), one wheel is a power magnetic suction wheel (43), all the magnetic suction wheels (41) are magnetic and are arranged on the frame (47) in a one-way rotating mode, and the front end welding head (421) stretches out a welding wire to be aligned to the connection line of the lowest points of the two magnetic suction wheels (41) on the front end.

5. The automatic welding machine for steel pipes according to claim 4, characterized in that: still include dolly initial platform (14) and welding wire protective sheath leading wheel (15) on base (13), dolly initial platform (14) is held level with the bottom surface of horizontal magnet (11), its horizontal magnet (11) and vertical magnet (12) are provided with 2 relatively dolly initial platform (14) bilateral symmetry, welding wire protective sheath leading wheel (15) are rotated and are set up on dolly initial platform (14), and its outer wall top touches the lower surface at direction scroll (21), welding wire protective sheath (6) set up on welding dolly (4) through welding wire protective sheath leading wheel (15).

6. The automatic welding machine for steel pipes according to claim 1, characterized in that: scroll device (2) still include scroll mounting bracket (22), be provided with scroll installation chamber (23), scroll installation axle (24) and scroll pilot hole (25) on scroll mounting bracket (22), direction scroll (21) inner circle sets up on scroll installation axle (24), and the tail portion of scroll pilot hole (25) effect in welding tractor (4) is passed through to the outer end, I donate pilot hole (25) about when direction scroll (21) is pushed away the direction can not change.

7. The automatic welding machine for steel pipes according to claim 6, characterized in that: drive arrangement (3) include drive shaft (31) and driving motor (32), drive shaft (31) set up on driving motor (32), driving motor (32) set up on base (13), and drive shaft (31) surface pressure touches on guide scroll (21), drive shaft (31) rotate the front end that drives guide scroll (21) and push out along scroll guiding hole (25).

8. The automatic welding machine for steel pipes according to claim 5, characterized in that: welding wire protective sheath (6) one end sets up on the rear end soldered connection (422) of welding tractor (4), and the other end sets up on base (13), welding wire bucket (5) rotate and set up on base (13), and the welding wire on its welding wire bucket (5) finally wears out from front end soldered connection (421) of welding tractor (4) through welding wire protective sheath (6).