CN217316372U - Welded pipe forming and extruding device - Google Patents

Abstract

The utility model discloses a welded tube shaping extrusion device, including base and portal, base top surface fixed mounting has the portal, and portal top surface central point puts fixedly connected with second pneumatic cylinder to the piston rod bottom surface fixed mounting of second pneumatic cylinder has the mounting panel, mounting panel bottom surface both ends fixedly connected with installation piece, and installation piece below is provided with the wheel carrier to a wheel carrier bottom side surface has the pinch roller through the shaft connection, installation piece bottom surface fixed mounting has both hands switch, and both hands switch below is located wheel carrier top surface fixed mounting has the depression bar to the depression bar both sides are located wheel carrier top surface fixed mounting has the ejector pin, the pole hole has been seted up in the ejector pin outside, and the inside slip of pole hole is pegged graft there is the guide arm to guide arm top surface and installation piece fixed connection. Has the advantages that: the device can complete the staggered joint processing of the welded pipe in the advancing process of the welded pipe, avoid the problem of welding quality caused by peak staggering and improve the welding forming quality of the welded pipe.

Description

Welded pipe forming and extruding device

Technical Field

The utility model relates to a steel pipe production technical field particularly, relates to a welded tube shaping extrusion device.

Background

The production raw material of the steel pipe is a steel belt, the steel belt is shaped by a plurality of dies to form a circular steel pipe with gaps, then, scaling powder is coated on the surfaces of the gaps, metal on the surfaces of the gaps is melted after heating, and finally, the melted metal at two ends of the gaps is closed and hardened through extrusion to complete welding.

The steel band is after the plastic, the steel pipe top surface produces the seam for the welding, the precision of being restricted by the mould, and the seam both ends height is not necessarily the same, will produce the fissure of displacement this moment, if direct extrusion welding, the position of fissure of displacement is difficult closed, lead to the welding shaping failure, influence product quality and production efficiency, can further make the improvement, and simultaneously, traditional squeeze roll adopts motor drive to rotate, the form that adopts the below to promote removes, this has just led to the squeeze roll below atress uneven, when extruding for a long time, the eccentric wearing and tearing of squeeze roll and drive connecting device appear easily, lead to the extrusion unstability, the condition that equipment life reduces takes place, also can further make the improvement.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a welded tube shaping extrusion device possesses the wrong joint of preventing, has improved the advantage of weld forming quality, and then solves the problem among the above-mentioned background art.

(II) technical scheme

For realizing the above-mentioned stagger joint prevention, improved the advantage of weld forming quality, the utility model discloses a concrete technical scheme as follows:

a welded pipe forming and extruding device comprises a base and a portal frame, wherein the top surface of the base is fixedly provided with the portal frame, the center of the top surface of the portal frame is fixedly connected with a second hydraulic cylinder, the bottom surface of a piston rod of the second hydraulic cylinder is fixedly provided with a mounting plate, two ends of the bottom surface of the mounting plate are fixedly connected with mounting blocks, wheel frames are arranged below the mounting blocks, one side surface of the bottom of each wheel frame is connected with a pinch roller through a wheel shaft, two hand switches are fixedly arranged on the bottom surface of each mounting block, push rods are fixedly arranged below the two hand switches on the top surface of the wheel frame, push rods are fixedly arranged on the two sides of each push rod on the top surface of the wheel frame, rod holes are formed in the outer sides of the push rods, guide rods are slidably inserted into the rod holes, the top surfaces of the guide rods are fixedly connected with the mounting blocks, springs are sleeved on the outer sides of the guide rods on the mounting blocks and the top surfaces of the wheel frames, extrusion rollers are provided with extrusion rollers, and the inside slidable mounting in base of squeeze roll below has the motor cabinet to motor cabinet top surface fixed mounting has driving motor, driving motor output main shaft and pinch roller bottom surface central point put fixed connection, and squeeze roll top surface central point put vertical fixedly connected with apical axis to the apical axis outside is rotated and is cup jointed the lantern ring, the inside horizontal fixed mounting of base has first pneumatic cylinder, and the piston rod other end and the motor cabinet fixed surface of first pneumatic cylinder are connected, the horizontal fixed mounting in portal surface has the third pneumatic cylinder, and the piston rod other end and the lantern ring fixed connection of third pneumatic cylinder.

Furthermore, the first hydraulic cylinder and the third hydraulic cylinder are of the same structure, and the first hydraulic cylinder and the third hydraulic cylinder work synchronously.

Further, the two hand switches comprise two sub-switches, and the two sub-switches are respectively installed above the two wheel carriers.

Further, the switch shell height of both hands switch is less than the distance between ejector pin top surface to the installation piece bottom surface, and both hands switch is the button switch.

Furthermore, the top surface of the base is provided with a track, and a main shaft at the output end of the driving motor penetrates through the track.

Furthermore, a guiding telescopic rod is transversely connected between the motor bases, and two ends of the guiding telescopic rod are fixedly connected with the two motor bases respectively.

Further, the lantern ring is connected with the top shaft in a rotating mode through a bearing.

Furthermore, the two ends of the spring are respectively fixedly connected with the top surface of the wheel carrier and the bottom surface of the mounting block, and the spring is made of manganese steel.

(III) advantageous effects

Compared with the prior art, the utility model provides a welded tube shaping extrusion device possesses following beneficial effect:

(1) the utility model adopts the pinch rollers positioned at both sides of the gap of the top surface of the welded pipe, when the welded pipe is welded and formed, after the welded pipe passes through the resistance welding coil, the metal at the gap is melted, when the welded pipe passes through the lower part of the pinch roller, the second hydraulic cylinder extends to push the pinch roller to move downwards, when the welded pipe is stagger-jointed, one pinch roller firstly contacts the surface of the welded pipe at the higher position of the stagger position, along with the continuous extension of the second hydraulic cylinder, the wheel carrier of one pinch roller moves upwards, the spring positioned at the top surface of the wheel carrier compresses, the pressure rod positioned at the top surface of the wheel carrier triggers one double-hand switch, at the moment, the ejector rod positioned at the top surface of the wheel carrier butts against the mounting block, along with the continuous extension of the second hydraulic cylinder, the mounting block moves downwards to push the mounting block to move downwards, the ejector rod pushes one pinch roller to move downwards while pushing one wheel carrier to move downwards, the surface of the welded pipe at the higher position of the stagger position moves downwards, until another pinch roller wherein and the lower welded tube surface butt of fissure of displacement position, and wherein another wheel carrier moves up the depression bar extrusion of another wheel carrier top surface and triggers another both hands switch wherein, both hands switch is triggered this moment, the second hydraulic cylinder stops the extension, at this moment, two pinch roller bottom surfaces are located the coplanar, thereby make the welded tube surface of gap both sides be located the same height, accomplish the centering, then, the squeeze roll is close to each other, promote the welded tube surface closure of gap both sides, accomplish weld forming, the device can accomplish the fissure of welded tube in the in-process of marcing and handle, the welding quality problem that has avoided the peak staggering and brought has improved the weld forming quality of welded tube.

(2) The utility model discloses a first pneumatic cylinder and third pneumatic cylinder, at welded tube extrusion's in-process, driving motor drives the squeeze roll and rotates, and simultaneously, first pneumatic cylinder and the synchronous extension of third pneumatic cylinder, it is close to the welded tube gradually to promote squeeze roll in the rotation, the butt welded tube extrudees, the welding seam closure of being convenient for, first pneumatic cylinder promotes the squeeze roll in the below and removes, and the third pneumatic cylinder promotes the squeeze roll in the top and removes, thereby the atress is more even when making the squeeze roll remove the extrusion welded tube, the stability of removal has been improved, thereby the stability of extrusion has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a welded pipe forming and extruding device provided by the present invention;

fig. 2 is a top view of the base according to the present invention;

FIG. 3 is an enlarged view of the node A of the extrusion device for forming welded pipes according to the present invention;

fig. 4 is a schematic structural diagram of the pressing wheel and the wheel carrier provided by the present invention.

In the figure:

1. a base; 2. a squeeze roll; 3. a drive motor; 4. a motor base; 5. a first hydraulic cylinder; 6. guiding the telescopic rod; 7. a gantry; 8. a second hydraulic cylinder; 9. mounting a plate; 10. a wheel carrier; 11. a collar; 12. a third hydraulic cylinder; 13. a top shaft; 14. a pinch roller; 15. a track; 16. mounting blocks; 17. a two-hand switch; 18. a pressure lever; 19. a top rod; 20. a guide bar; 21. a spring; 22. an axle; 23. a rod hole.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides a welded tube shaping extrusion device.

Referring now to the drawings and the detailed description, as shown in fig. 1-4, a welded pipe forming and extruding apparatus according to an embodiment of the present invention comprises a base 1 and a gantry 7, the gantry 7 is fixedly installed on the top surface of the base 1, the central position of the top surface of the gantry 7 is fixedly connected with a second hydraulic cylinder 8, the bottom surface of a piston rod of the second hydraulic cylinder 8 is fixedly installed with a mounting plate 9, two ends of the bottom surface of the mounting plate 9 are fixedly connected with mounting blocks 16, a wheel carrier 10 is arranged below the mounting blocks 16, two wheel carriers 10 are arranged, a side surface of the bottom of the wheel carrier 10 is connected with a pressing wheel 14 through a wheel shaft 22, the pressing wheel 14 is located at the inner sides of the two wheel carriers 10, a two-hand switch 17 is fixedly installed on the bottom surface of the mounting block 16, the output end of the two-hand switch 17 is electrically connected with the input end of the second hydraulic cylinder 8, wherein the two-hand switch 17 comprises two sub-switches, the two sub-switches are respectively arranged above the two wheel frames 10, when the two sub-switches are all triggered, the two-hand switch 17 can trigger to close the second hydraulic cylinder 8, a pressure rod 18 is fixedly arranged below the two-hand switch 17 and positioned on the top surface of the wheel frames 10, ejector rods 19 are fixedly arranged on the two sides of the pressure rod 18 and positioned on the top surface of the wheel frames 10, rod holes 23 are formed in the outer sides of the ejector rods 19, guide rods 20 are inserted in the rod holes 23 in a sliding mode, the guide rods 20 are used for guiding the wheel frames 10 to move up and down to avoid the wheel frames 10 from being inclined, the top surfaces of the guide rods 20 are fixedly connected with an installation block 16, springs 21 are sleeved on the outer sides of the guide rods 20 and positioned on the installation block 16 and the top surface of the wheel frames 10, the squeezing roller 2 is arranged below the pressing wheel 14, a motor base 4 is arranged inside the base 1 and positioned below the squeezing roller 2 in a sliding mode, a driving motor 3 is fixedly arranged on the top surface of the motor base 4, and a main shaft at the output end of the driving motor 3 is fixedly connected with the center position of the bottom surface of the squeezing wheel 14, the common driving structure is adopted, the center position of the top surface of the squeeze roller 2 is vertically and fixedly connected with a top shaft 13, the outer side of the top shaft 13 is rotatably sleeved with a sleeve ring 11, a first hydraulic cylinder 5 is transversely and fixedly arranged in a base 1, the other end of a piston rod of the first hydraulic cylinder 5 is fixedly connected with the surface of a motor base 4, a third hydraulic cylinder 12 is transversely and fixedly arranged on the surface of a portal frame 7, the other end of a piston rod of the third hydraulic cylinder 12 is fixedly connected with the sleeve ring 11, when a welded pipe is welded and formed, metal at a gap is melted after the welded pipe passes through a resistance welding coil, when the welded pipe passes below a press wheel 14, a second hydraulic cylinder 8 extends to push the press wheel 14 to move downwards, when the welded pipe is in staggered joint, one press wheel 14 firstly contacts the surface of the welded pipe at a higher position of the staggered joint, and along with the continuous extension of the second hydraulic cylinder 8, a wheel carrier 10 of one press wheel 14 moves upwards, and a spring 21 positioned on the top surface of the wheel carrier 10 is compressed, a pressure lever 18 positioned on the top surface of the wheel frame 10 triggers one of the two-hand switches 17, at this time, a mandril 19 positioned on the top surface of the wheel frame 10 is abutted against the mounting block 16, along with the continuous extension of the second hydraulic cylinder 8, the mounting plate 9 moves downwards to push the mounting block 16 to move downwards, the mandril 19 pushes one of the wheel frames 10 to move downwards and simultaneously drives one of the pressure wheels 14 to move downwards, the surface of the welded pipe at the higher position of the staggered joint position is pushed downwards until the other pressure wheel 14 is abutted against the surface of the welded pipe at the lower position of the staggered joint position, and the pressure lever 18 of the other wheel frame 10 which moves upwards to the top surface of the other wheel frame 10 is squeezed to trigger the other two-hand switch 17, at this time, the two-hand switches 17 are both triggered, the second hydraulic cylinder 8 stops extending, at this time, the bottom surfaces of the two pressure wheels 14 are positioned in the same plane, so that the surfaces of the welded pipes at two sides of the gap are positioned at the same height, the centering is completed, and then, the squeeze rollers 2 are close to each other, the surfaces of the welded pipes on the two sides of the gap are pushed to be closed, welding forming is completed, staggered joint processing of the welded pipes can be completed in the advancing process, the problem of welding quality caused by staggered peaks is avoided, and the welding forming quality of the welded pipes is improved.

In one embodiment, the first hydraulic cylinder 5 and the third hydraulic cylinder 12 are of the same structure, and the first hydraulic cylinder 5 and the third hydraulic cylinder 12 work synchronously, in the process of extrusion forming of the welded pipe, the driving motor 3 drives the squeeze roller 2 to rotate, meanwhile, the first hydraulic cylinder 5 and the third hydraulic cylinder 12 extend synchronously to push the rotating squeeze roller 2 to approach the welded pipe gradually, the welded pipe is extruded, the welded pipe is convenient to close, the first hydraulic cylinder 5 pushes the squeeze roller 2 to move below, and the third hydraulic cylinder 12 pushes the squeeze roller 2 to move above, so that the stress is more uniform when the squeeze roller 2 moves to extrude the welded pipe, the moving stability is improved, and the stability of extrusion forming is improved.

In one embodiment, the height of the switch shell of the two-hand switch 17 is smaller than the distance between the top surface of the ejector rod 19 and the bottom surface of the mounting block 16, and the two-hand switch 17 is a button switch, the ejector rod 19 prevents the press rod 18 from continuously pressing the switch shell after triggering the sub-switch to cause the damage of the sub-switch, and the sub-switch is protected and simultaneously provides supporting force.

In one embodiment, the top surface of the base 1 is provided with a track 15, and a spindle at the output end of the driving motor 3 penetrates through the track 15, so that the driving motor 3 and the squeezing roller 2 can move conveniently.

In one embodiment, the guiding telescopic rod 6 is transversely connected between the motor bases 4, two ends of the guiding telescopic rod 6 are fixedly connected with the two motor bases 4 respectively, and the guiding telescopic rod 6 is a metal rod which can freely stretch and retract transversely and guides the movement of the motor bases 4.

In one embodiment, the collar 11 is rotatably connected to the top shaft 13 through a bearing, so as to facilitate smooth rotation of the top shaft 13.

In one embodiment, the two ends of the spring 21 are fixedly connected to the top surface of the wheel frame 10 and the bottom surface of the mounting block 16, respectively, so as to prevent the wheel frame 10 from falling off, and the spring 21 is made of manganese steel, so that the elasticity is durable.

The working principle is as follows:

when the welded pipe is welded and formed, after the welded pipe passes through the resistance welding coil, metal at the gap is melted, when the welded pipe passes below the press wheels 14, the second hydraulic cylinder 8 extends to push the press wheels 14 to move downwards, when the welded pipe is subjected to staggered joint, one of the press wheels 14 firstly contacts the surface of the welded pipe at the higher position of the staggered joint, along with the continuous extension of the second hydraulic cylinder 8, the wheel frame 10 of one of the press wheels 14 moves upwards, the spring 21 at the top surface of the wheel frame 10 is compressed, the press rod 18 at the top surface of the wheel frame 10 triggers one of the two-hand switches 17, at the moment, the ejector rod 19 at the top surface of the wheel frame 10 is abutted against the mounting block 16, along with the continuous extension of the second hydraulic cylinder 8, the mounting block 9 moves downwards to push the mounting block 16 to move downwards, the ejector rod 19 pushes one of the wheel frames 10 to move downwards and simultaneously drives one of the press wheels 14 to move downwards, so as to push the surface of the welded pipe at the higher position of the staggered joint to move downwards, until the other press wheel 14 is abutted against the surface of the welded pipe at the lower position of the staggered joint, when the other wheel frame 10 moves upwards to the pressure rod 18 on the top surface of the other wheel frame 10 to press and trigger the other two-hand switch 17, the two-hand switches 17 are triggered, the second hydraulic cylinder 8 stops extending, the bottom surfaces of the two pressure wheels 14 are positioned in the same plane, so that the surfaces of the welded pipes on the two sides of the gap are positioned at the same height to complete centering, then the extrusion rollers 2 approach to each other to push the surfaces of the welded pipes on the two sides of the gap to be closed to complete welding forming, the device can complete staggered joint treatment of the welded pipes in the advancing process, avoids the welding quality problem caused by staggered peaks, improves the welding forming quality of the welded pipes, and simultaneously, in the process of extrusion forming of the welded pipes, the driving motor 3 drives the extrusion rollers 2 to rotate, simultaneously, the first hydraulic cylinder 5 and the third hydraulic cylinder 12 extend synchronously to push the extrusion rollers 2 in rotation to gradually approach the welded pipes to extrude the welded pipes, the welding seam is convenient to close, the first hydraulic cylinder 5 pushes the squeeze roll 2 to move below, and the third hydraulic cylinder 12 pushes the squeeze roll 2 to move above, so that the squeeze roll 2 is stressed more uniformly when being moved to squeeze welded pipes, the moving stability is improved, and the extrusion forming stability is improved.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a welded tube shaping extrusion device, a serial communication port, including base (1) and portal (7), base (1) top surface fixed mounting has portal (7), and portal (7) top surface central point puts fixedly connected with second hydraulic cylinder (8) to the piston rod bottom surface fixed mounting of second hydraulic cylinder (8) has mounting panel (9), mounting panel (9) bottom surface both ends fixedly connected with installation piece (16), and installation piece (16) below is provided with wheel carrier (10), and wheel carrier (10) bottom one side surface is connected with pinch roller (14) through shaft (22), installation piece (16) bottom surface fixed mounting has both hands switch (17), and both hands switch (17) below is located wheel carrier (10) top surface fixed mounting and has depression bar (18) to depression bar (18) both sides are located wheel carrier (10) top surface fixed mounting has ejector pin (19), a rod hole (23) is formed in the outer side of the ejector rod (19), a guide rod (20) is inserted in the rod hole (23) in a sliding mode, the top surface of the guide rod (20) is fixedly connected with the mounting block (16), a spring (21) is sleeved on the mounting block (16) and the top surface of the wheel carrier (10) on the outer side of the guide rod (20), an extrusion roller (2) is arranged below the pressing wheel (14), a motor base (4) is arranged inside the base (1) on the lower side of the extrusion roller (2) in a sliding mode, a driving motor (3) is fixedly installed on the top surface of the motor base (4), a main shaft of the output end of the driving motor (3) is fixedly connected with the center of the bottom surface of the extrusion roller (14), an ejector shaft (13) is vertically and fixedly connected with the center of the top surface of the extrusion roller (2), a sleeve ring (11) is rotatably sleeved on the outer side of the ejector shaft (13), a first hydraulic cylinder (5) is transversely and fixedly installed in the base (1), and the other end of the piston rod of the first hydraulic cylinder (5) is fixedly connected with the surface of the motor base (4), a third hydraulic cylinder (12) is transversely and fixedly installed on the surface of the portal frame (7), and the other end of the piston rod of the third hydraulic cylinder (12) is fixedly connected with the lantern ring (11).

2. A weld pipe forming and extruding apparatus according to claim 1, wherein the first hydraulic cylinder (5) and the third hydraulic cylinder (12) are of the same construction, and the first hydraulic cylinder (5) and the third hydraulic cylinder (12) are operated synchronously.

3. The extrusion apparatus as claimed in claim 1, wherein the two-hand switch (17) comprises two sub-switches, and the two sub-switches are respectively mounted above the two wheel frames (10).

4. A weld pipe forming extrusion apparatus as claimed in claim 1, wherein the two-handed switch (17) has a switch housing height less than the distance between the top surface of the stem (19) and the bottom surface of the mounting block (16), and the two-handed switch (17) is a push button switch.

5. The welded pipe forming and extruding device as recited in claim 1, wherein a rail (15) is formed on the top surface of the base (1), and a spindle at the output end of the driving motor (3) penetrates through the rail (15).

6. The welded pipe forming and extruding device as claimed in claim 1, wherein a guiding telescopic rod (6) is transversely connected between the motor bases (4), and two ends of the guiding telescopic rod (6) are fixedly connected with the two motor bases (4) respectively.

7. A weld pipe forming extrusion apparatus as claimed in claim 1, wherein the collar (11) is rotatably connected to the top shaft (13) by means of bearings.

8. The welded pipe forming and extruding device as recited in claim 1, wherein both ends of the spring (21) are fixedly connected with the top surface of the wheel frame (10) and the bottom surface of the mounting block (16), respectively, and the spring (21) is made of manganese steel.

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