CN115159116B

CN115159116B - Double-station steel pipe transferring device for steel pipe production

Info

Publication number: CN115159116B
Application number: CN202210949214.8A
Authority: CN
Inventors: 刘琼飞; 李才; 曾顺; 刘勇; 王志明
Original assignee: Hunan Youdu Electromechanical Equipment Co ltd
Current assignee: Hunan Youdu Electromechanical Equipment Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-06-16
Anticipated expiration: 2042-08-09
Also published as: CN115159116A

Abstract

The invention discloses a double-station steel pipe transfer device for steel pipe production, and relates to the technical field of steel pipe production transfer. The invention comprises supporting components, wherein a transferring component is movably arranged in the supporting components, a clamping component is arranged on the transferring component, and a plurality of supporting components are fixedly connected through connecting components, wherein one group of supporting components are fixedly connected with a driving component through the connecting components; the clamping assembly comprises clamping jaws, sliding rails, sliding blocks, springs, connecting lines, left baffle plates, right support plates, extension plates and electromagnets, the clamping jaws are fixedly connected to the other ends of the transfer arms, mounting grooves are respectively formed in two opposite sides of the inner portions of the clamping jaws, and the sliding rails are fixedly arranged in each mounting groove. According to the steel pipe clamping device, the left baffle and the right support plate are matched with the sliding blocks and the springs at the bottoms, so that steel pipes with different specifications can be clamped, the steel pipes are clamped stably in the transportation process, and the problem of shaking of the steel pipes is avoided.

Description

Double-station steel pipe transferring device for steel pipe production

Technical Field

The invention belongs to the technical field of steel pipe production and transfer, and particularly relates to a double-station steel pipe transfer device for steel pipe production.

Background

The steel pipe is a steel material having a hollow section with a length far greater than a diameter or circumference, and is divided into a seamless steel pipe and a welded steel pipe. The seamless steel pipe is produced through the steps of threading solid pipe blank or steel ingot into hollow pipe billet and rolling the hollow pipe billet into steel pipe of required size. The welded steel pipe is produced through bending pipe blank (steel plate or strip steel) into pipe and welding the seam. In the production of seamless steel pipes or welded steel pipes, it is necessary to carry out different production processes from one apparatus to another in the subsequent processes, and therefore, a transfer device is required for transferring the steel pipes in the process of transferring the steel pipes.

At present, a double-station transfer device for steel pipe production or a common boom is adopted to clamp the steel pipe to carry out the transfer between two stations, and because the steel pipe is longer, a certain section of the steel pipe of a single boom clamping jaw angle square is easy to lead the steel pipe to incline and fall off, at least two groups of boom clamping jaws are needed to clamp the two ends of the steel pipe, so that the boom structure is greatly increased, and the boom transfer is suitable for transferring the middle-long-distance steel pipe and is not suitable for transferring the steel pipe between two double stations with shorter distances in the invention; or a Wheatstone mechanism is adopted, a transfer arm is arranged between the left and right devices, a rotating shaft is arranged at the middle end of the transfer arm, and the transfer arm and the steel pipe can collide with the left and right devices in the rotating process of the transfer arm through the rotating shaft, so that the steel pipe cannot be transferred, if the length of the lower half section of the transfer arm is shortened, the pressure born by the rotating shaft is overlarge, and the transfer arm can be driven to rotate by more power, so that the mechanism is not beneficial to the transfer between two stations of the steel pipe; meanwhile, the clamping jaw for clamping the steel pipe of the existing steel pipe transfer device cannot stably clamp the steel pipe, the thickness of the steel pipe is different, the size of a clamping space cannot be adjusted according to the thickness of the steel pipe, and the steel pipe is inconvenient to transfer between two stations.

The existing steel pipe transfer device has the problems that the transfer arm is easy to collide with processing equipment on two sides in the rotating process, so that the steel pipe cannot normally move, meanwhile, the clamping jaw for clamping the steel pipe cannot stably clamp the steel pipe, the steel pipe is easy to shake in the transfer process, transfer is affected, and transfer between two stations is inconvenient, so that the double-station steel pipe transfer device for steel pipe production is provided.

Disclosure of Invention

The invention aims to provide a double-station steel pipe transfer device for steel pipe production, which solves the problems that a transfer arm of the existing steel pipe transfer device is easy to collide with processing equipment on two sides in the rotating process, so that a steel pipe cannot normally move, and meanwhile, a clamping jaw for clamping the steel pipe cannot stably clamp the steel pipe, so that the steel pipe is easy to shake in the transfer process, the transfer is influenced, and the transfer between two stations is inconvenient.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a double-station steel pipe transfer device for steel pipe production, which comprises support components, wherein the support components are movably arranged in the support components, clamping components are arranged on the transfer components, a plurality of support components are fixedly connected through connecting components, and one group of support components are fixedly connected with a driving component through the connecting components;

the support assembly comprises a second base, fixed bearings and a first pin shaft, wherein the fixed bearings are respectively arranged on two opposite sides right above the second base, and one end of each fixed bearing is movably connected with the first pin shaft;

preferably, the support assembly further comprises bearing seats, wherein a plurality of the bearing seats are fixedly connected to two opposite sides of the top of the first base, and each bearing seat is fixedly connected with a fixed bearing.

The transfer assembly comprises sliding arms, sliding bearings, lifting arms, connecting pieces, transfer arms, second pin shafts and transmission arms, wherein the two sliding arms are respectively and fixedly connected to two opposite side walls in the second base, the two sliding arms are connected through the sliding bearings, the sliding bearings are fixedly connected to the inside of one end of each lifting arm, the other end of each lifting arm is fixedly connected with one end of each transfer arm through the connecting piece, one end of each second pin shaft penetrates through the side face of each transfer arm, the second pin shafts are adjacent to the connecting pieces, two ends of each second pin shaft are respectively and movably connected with one end of each transmission arm, and the other end of each transmission arm is movably connected with the first pin shaft;

preferably, a sliding groove is formed in the sliding arm, and the sliding bearing is movably arranged in the sliding groove.

The clamping assembly comprises clamping jaws, sliding rails, sliding blocks, springs, connecting wires, left baffle plates, right support plates, extension plates and electromagnets, wherein the clamping jaws are fixedly connected to the other ends of the transfer arms, mounting grooves are respectively formed in the two opposite sides of the inner parts of the clamping jaws, the sliding rails are fixedly arranged in the mounting grooves, the inner walls of the sliding rails are fixedly connected with one ends of the springs, the other ends of the springs are fixedly connected with the sliding blocks, the sliding blocks are movably arranged in the sliding rails, one side surface of each sliding block, opposite to each spring, is fixedly connected with one end of each connecting wire, the other ends of the connecting wires are fixedly connected with the extension plates, and the extension plates are movably arranged in the mounting grooves; one of them the slider top is with left baffle fixed connection, another slider top and right branch fagging fixed connection, clamping jaw inner wall side and electro-magnet fixed connection, just the electro-magnet is close to right branch fagging.

Preferably, the clamping assembly further comprises a telescopic piece, the telescopic piece is arranged inside the spring, one end of the telescopic piece is fixedly connected with the inner wall of one side of the sliding rail, and the other end of the telescopic piece is fixedly connected with one side face of the sliding block.

Preferably, the transfer arm is close to one end of the lifting arm and is provided with a mounting hole, the second pin shaft is fixedly arranged in the mounting hole, two ends of the second pin shaft are positioned outside the second pin shaft, and two ends of the second pin shaft penetrate through one end of the transmission arm.

Preferably, the left baffle is consistent with the specification of the right support plate, and the right support plate is made of iron-nickel alloy.

Preferably, the two sliding rails are symmetrically distributed about the central axis of the clamping jaw.

Preferably, the driving assembly comprises a first base, a motor, a first coupler and a reduction gearbox, wherein the top of the first base is fixedly connected with the motor, the output end of the motor is fixedly connected with one end of the first coupler, the other end of the first coupler is fixedly connected with the reduction gearbox, the reduction gearbox is fixedly connected at the top of the first base, and two side surfaces of the reduction gearbox are respectively and movably connected with the connecting assembly.

Preferably, the connecting assembly comprises a second coupler and connecting shafts, two ends of each connecting shaft are fixedly connected with the second coupler respectively, a plurality of the second couplers are movably connected with the fixed bearings respectively, one end of each second coupler is movably connected with one side face of the reduction gearbox, the other side face of the reduction gearbox is movably connected with one end of a third coupler, and the other end of the third coupler is movably connected with one of the fixed bearings.

The invention has the following beneficial effects:

1. according to the invention, the transfer device driven by the three mechanical arms of the lifting arm, the transfer arm and the transmission arm is arranged, the clamping jaw for clamping the steel pipe is arranged at one end of the transfer arm, when the steel pipe is transferred from one side processing equipment to the other side processing equipment, one end of the transmission arm is driven to rotate due to the rotation driving of the first pin shaft, the other end of the transmission arm is connected with the transfer arm to drive the transfer arm to move in an elliptical track, so that the transfer arm can easily transport the clamping jaw, and meanwhile, the lifting arm connected with the transfer arm is lifted up and down, so that the transfer arm has a supporting point for moving; the whole transfer structure can stably transport the steel pipes, and meanwhile, the transfer device cannot collide with processing equipment on two sides during steel pipe transportation.

2. According to the steel pipe clamping device, the clamping assembly is arranged, when the steel pipe is clamped, the clamping jaw is driven by the transferring assembly to rotate left and right, when the steel pipe is supported by rotating left, the left extension plate slides out of the clamping jaw and is connected with the left processing equipment in a direction of gravity, so that the steel pipe is supported on the surface of the clamping jaw more conveniently, and when the clamping jaw rotates right to place the steel pipe, the right extension plate slides out of the clamping jaw and is connected with the right processing equipment in a direction of gravity, so that the steel pipe can stably slide onto the right processing equipment and cannot slide off, and after the steel pipe is supported in the clamping jaw, the steel pipes with different specifications can be clamped by the left baffle and the right support plate and matched with the sliding block at the bottom and the spring, so that the steel pipe is clamped stably in the transportation process, and the problem of shaking of the steel pipe is avoided; and when the clamping jaw inclines leftwards, the left baffle is pushed to slide leftwards due to the gravity action of the steel pipe, so that the steel pipe can stably move leftwards, and the steel pipe is transported more stably and rapidly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of 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 that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the whole structure of a double-station steel pipe transfer device for steel pipe production;

FIG. 2 is an enlarged view of the invention at A in FIG. 1;

FIG. 3 is an enlarged view of the invention at B in FIG. 2;

FIG. 4 is a schematic side view of a double-station steel pipe transfer device for steel pipe production;

FIG. 5 is a schematic view showing the overall structure of a clamping assembly of a double-station steel pipe transfer device for steel pipe production;

FIG. 6 is an enlarged view of FIG. 5 at C in accordance with the present invention;

FIG. 7 is a schematic cross-sectional view of a clamping assembly of a dual-station steel pipe transfer apparatus for steel pipe production according to the present invention;

FIG. 8 is an enlarged view of the invention at D in FIG. 7;

fig. 9 is an enlarged view of fig. 7 at E in accordance with the present invention.

In the drawings, the list of components represented by the various numbers is as follows:

1. a first base; 2. a motor; 3. a first coupling; 4. a reduction gearbox; 5. a second coupling; 6. a connecting shaft; 7. a second base; 8. a bearing seat; 9. fixing a bearing; 10. a first pin; 11. a slide arm; 12. a sliding bearing; 13. a lifting arm; 14. a connecting piece; 15. a transfer arm; 16. a second pin; 17. a transmission arm; 18. a third coupling; 19. a clamping jaw; 20. a slide rail; 21. a slide block; 22. a telescoping member; 23. a spring; 24. a connecting wire; 25. a left baffle; 26. a right support plate; 27. a extension plate; 28. an electromagnet.

Detailed Description

The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-9, the invention relates to a double-station steel pipe transfer device for steel pipe production, which comprises support components, wherein the support components are movably arranged in the transfer components, clamping components are arranged on the transfer components, and a plurality of support components are fixedly connected through connecting components, wherein one group of support components are fixedly connected with a driving component through the connecting components;

the support assembly comprises a second base 7, fixed bearings 9 and a first pin shaft 10, wherein the fixed bearings 9 are respectively arranged on two opposite sides right above the second base 7, one end of each fixed bearing 9 is movably connected with the first pin shaft 10, the second base 7 is used for supporting and fixing a transfer assembly in the second base, the fixed bearings 9 are used for supporting and matching the connecting shaft 6 and the first pin shaft 10 to rotate, the friction coefficient of the connecting shaft is reduced, and the first pin shaft 10 is used for driving one end of the transmission arm 17 to rotate;

wherein, the supporting component still includes bearing frame 8, and a plurality of bearing frames 8 are equal fixed connection in the relative both sides in first base 1 top, and the inside all fixed connection with fixed bearing 9 of every bearing frame 8, and bearing frame 8 is used for fixing fixed bearing 9, plays the effect of installation.

The transfer assembly comprises sliding arms 11, sliding bearings 12, lifting arms 13, connecting pieces 14, transfer arms 15, second pin shafts 16 and transmission arms 17, wherein the two sliding arms 11 are respectively and fixedly connected to two opposite side walls in the second base 7, the two sliding arms 11 are connected through the sliding bearings 12, the sliding bearings 12 are fixedly connected to one end of each lifting arm 13, the other end of each lifting arm 13 is fixedly connected with one end of each transfer arm 15 through the corresponding connecting piece 14, one end of each second pin shaft 16 penetrates through the side face of each transfer arm 15, the second pin shafts 16 are adjacent to the corresponding connecting piece 14, two ends of each second pin shaft 16 are respectively and movably connected with one end of each transmission arm 17, the other end of each transmission arm 17 is movably connected with the corresponding first pin shaft 10, one end of each lifting arm 13 is lifted up and down in a chute, so that the transfer arms 15 fixed with the other end of each lifting arm are driven to transfer steel pipes, the corresponding connecting pieces 14 are used for connecting the corresponding transfer arms 15 with the corresponding lifting arms 13, the corresponding transfer arms 15 are matched through transmission between the lifting arms 13 and the transmission arms 17, so that the steel pipes are driven to be transferred, the movement tracks of the corresponding transfer arms 15 are elliptical, the second pin shafts 16 are used for connecting the transmission arms 17 and the transfer arms 15, so that the transfer arms can be matched with the transfer arms 17 and can be driven to move through the transmission shafts 6 to rotate, and the transmission arms 15;

the sliding arm 11 is internally provided with a sliding groove, the sliding bearing 12 is movably arranged in the sliding groove, the sliding groove in the sliding arm 11 is used for enabling the sliding bearing 12 to rotate in the sliding groove, and meanwhile one end of the lifting arm 13 is driven to lift up and down in the sliding groove.

The clamping assembly comprises clamping jaws 19, sliding rails 20, sliding blocks 21, springs 23, connecting lines 24, left baffle plates 25, right support plates 26, extension plates 27 and electromagnets 28, wherein the clamping jaws 19 are fixedly connected to the other ends of the transfer arms 15, mounting grooves are respectively formed in the two opposite sides of the inner parts of the clamping jaws 19, the sliding rails 20 are fixedly arranged in the mounting grooves, the inner walls of the sliding rails 20 are fixedly connected with one ends of the springs 23, the other ends of the springs 23 are fixedly connected with the sliding blocks 21, the sliding blocks 21 are movably arranged in the sliding rails 20, one side surfaces of the sliding blocks 21, opposite to the springs 23, are fixedly connected with one ends of the connecting lines 24, the other ends of the connecting lines 24 are fixedly connected with the extension plates 27, and the extension plates 27 are movably arranged in the mounting grooves; the top of one sliding block 21 is fixedly connected with the left baffle 25, the top of the other sliding block 21 is fixedly connected with the right support plate 26, one side surface of the inner wall of the clamping jaw 19 is fixedly connected with the electromagnet 28, the electromagnet 28 is adjacent to the right support plate 26, the clamping jaw 19 is used for clamping a steel pipe, the inside of the clamping jaw is used for loading other clamping components, the sliding rail 20 is internally used for sliding the sliding block 21, the sliding block 21 slides in the sliding rail 20, the telescopic piece 22 stretches in the sliding process of the sliding rail 20, the spring 23 stretches so as to adapt to steel pipes with different sizes, the clamping space can be adjusted according to the size of the steel pipe, the connecting wire 24 is made of PE materials and is not malleable, but can be bent, and when the extending plate 27 extends outwards due to gravity, the connecting wire 24 is used for connecting the extending plate 27 with the sliding block 21, so that the sliding block 21 is driven to move towards the extending plate 27; the left baffle 25 and the right support plate 26 are used for supporting the steel pipe, the steel pipe is prevented from shaking in the transferring process, the extension plate 27 extends, the effect that the clamping jaw 19 is connected with left and right processing equipment is achieved, thereby the transfer of the steel pipe is more convenient, the electromagnet 28 is arranged on one side of the clamping jaw 19 for absorbing the right support plate 26, the extension plate 27 is arranged on the left side and the right side of the clamping jaw 19, when the clamping jaw inclines to a certain side, due to the action of gravity, the extension plate 27 slides out of the clamping jaw 19, the clamping jaw 19 is prolonged for a section, the distance between the drawing and the equipment is shortened, the steel pipe is placed on the clamping jaw 19 more easily, the steel pipe processing equipment is connected through the extension plate 27, the electromagnet 28 is used for absorbing the right support plate 26 after being electrified, the right support plate 26 slides to the right side simultaneously when the clamping jaw 19 inclines to the right side, the influence of the clamping jaw 23 is avoided, and the steel pipe can be placed on the surface of the clamping jaw 19 smoothly.

The clamping assembly further comprises a telescopic piece 22, the telescopic piece 22 is arranged inside the spring 23, one end of the telescopic piece 22 is fixedly connected with one side inner wall of the sliding rail 20, the other end of the telescopic piece 22 is fixedly connected with one side face of the sliding block 21, and the telescopic piece 22 slides inside the sliding rail 20 through the sliding block 21, so that the telescopic piece 22 stretches and contracts to play a buffering role on the spring 23.

Wherein, the transfer arm 15 is close to lifting arm 13 one end and has seted up the mounting hole, and second round pin axle 16 is fixed to be set up in the mounting hole inside, and second round pin axle 16 both ends are located second round pin axle 16 outside, and second round pin axle 16 both ends all run through drive arm 17 one end.

Wherein, the left baffle 25 and the right support plate 26 have the same specification, and the right support plate 26 is made of iron-nickel alloy.

Wherein the two slide rails 20 are symmetrically distributed about the central axis of the clamping jaw 19.

Wherein, drive assembly includes first base 1, motor 2, first shaft coupling 3 and reducing gear box 4, first base 1 top and motor 2 fixed connection, motor 2 output and first shaft coupling 3 one end fixed connection, first shaft coupling 3 other end and reducing gear box 4 fixed connection, reducing gear box 4 fixed connection is at first base 1 top, and reducing gear box 4 both sides face respectively with coupling assembling swing joint, first base 1 is used for supporting motor 2 and reducing gear box 4, motor 2 is used for driving holistic transfer device operation, first shaft coupling 3 is used for connecting reducing gear box 4 and motor 2, reducing gear box 4 is used for reducing motor 2 output speed.

The connecting assembly comprises second couplers 5 and connecting shafts 6, two ends of each connecting shaft 6 are fixedly connected with the second couplers 5 respectively, a plurality of second couplers 5 are movably connected with fixed bearings 9 respectively, one end of one second coupler 5 is movably connected with one side face of the reduction gearbox 4, the other side face of the reduction gearbox 4 is movably connected with one end of a third coupler 18, the other end of the third coupler 18 is movably connected with one fixed bearing 9, and the second couplers 5 and the connecting shafts 6 are mutually matched.

The working principle of the invention is as follows: when the steel pipe on the right processing equipment is transferred to the left equipment, the motor 2 is started, the connecting shaft 6 is driven by the motor 2 to rotate, so that the transmission arm 17 and the transfer arm 15 are driven to rotate through the rotation of the first pin shaft 10, one end of the lifting arm 13 slides up and down in the sliding arm 11, the clamping jaw 19 inclines to the right, after the processing equipment on the right side of the clamping jaw 19 inclines, the extension plate 27 positioned on the right side of the clamping jaw 19 slides out of the clamping jaw 19 due to the action of gravity, the slide block 21 on the right side is pulled out through the connecting wire 24 connected with the extension plate, at the moment, the electromagnet 28 is started to generate magnetic force, the right support plate 26 is enabled to slide quickly to the right side under the double action of the attraction force of the electromagnet 28 and the tension force of the slide block influenced by the gravity, the right support plate 26 is adsorbed on the electromagnet 28, at the moment, the extension plate 27 positioned on the right side of the clamping jaw 19 extends out of the clamping jaw 19 for a section, so that the steel pipe is easily transferred from the right processing equipment to the surface of the clamping jaw 19, when the steel pipe is transferred to the clamping jaw 19, the clamping jaw 19 gradually inclines leftwards by the driving of the transfer component, at the moment, the electromagnet 28 is disconnected to be in an electrified state, the right support plate 26 gradually moves leftwards under the action of the tensile force of the elongated spring 23, therefore, the left baffle plate 25 and the right support plate 26 stably clamp the steel pipe, and the left baffle plate 25 and the right support plate 26 slightly move to two sides under the action of the elasticity of the spring 23 according to the thickness of the steel pipe, but always stably clamp the steel pipe, when the clamping jaw 19 is completely inclined rightwards, the extension plate 27 on the right side of the clamping jaw 19 slides outwards under the action of the gravity, the steel pipe continuously extrudes the left baffle plate 25 leftwards under the action of the gravity, so that the left baffle plate 25 continuously slides leftwards, until contacting the left side wall of the clamping jaw 19, the left baffle plate 25 moves leftwards at a steady uniform speed due to the elastic action of the spring 23, so that the steel pipe can slide leftwards stably until rolling down to the left processing equipment through the left extension plate 27, and the transportation of one steel pipe is completed.

The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A duplex steel pipe transfer device for steel pipe production, its characterized in that: the device comprises a supporting component, wherein a transferring component is movably arranged in the supporting component, a clamping component is arranged on the transferring component, a plurality of supporting components are fixedly connected through a connecting component, and one group of supporting components are fixedly connected with a driving component through the connecting component;

the support assembly comprises a second base (7), fixed bearings (9) and a first pin shaft (10), wherein the fixed bearings (9) are respectively arranged on two opposite sides right above the second base (7), and one end of each fixed bearing (9) is movably connected with the first pin shaft (10);

the transfer assembly comprises a sliding arm (11), a sliding bearing (12), a lifting arm (13), a connecting piece (14), a transfer arm (15), a second pin shaft (16) and a transmission arm (17), wherein the two sliding arms (11) are respectively and fixedly connected to two opposite side walls in the second base (7), the two sliding arms (11) are connected through the sliding bearing (12), the sliding bearing (12) is fixedly connected to one end of the lifting arm (13), the other end of the lifting arm (13) is fixedly connected with one end of the transfer arm (15) through the connecting piece (14), one end of the second pin shaft (16) penetrates through the side face of the transfer arm (15), the second pin shaft (16) is adjacent to the connecting piece (14), two ends of the second pin shaft (16) are respectively and movably connected with one end of the transmission arm (17), and the other end of the transmission arm (17) is movably connected with the first pin shaft (10).

The clamping assembly comprises clamping jaws (19), sliding rails (20), sliding blocks (21), springs (23), connecting wires (24), left baffle plates (25), right support plates (26), extension plates (27) and electromagnets (28), wherein the clamping jaws (19) are fixedly connected to the other ends of the transfer arms (15), mounting grooves are respectively formed in the two opposite sides of the inner portions of the clamping jaws (19), sliding rails (20) are fixedly arranged in the mounting grooves respectively, the inner walls of the sliding rails (20) are fixedly connected with one ends of the springs (23), the other ends of the springs (23) are fixedly connected with the sliding blocks (21), the sliding blocks (21) are movably arranged in the sliding rails (20), one side face of each sliding block (21) is fixedly connected with one end of each connecting wire (24), the other end of each connecting wire (24) is fixedly connected with each extension plate (27), and the extension plates (27) are movably arranged in the mounting grooves; one of them slider (21) top and left baffle (25) fixed connection, another slider (21) top and right backup pad (26) fixed connection, a side and electromagnet (28) fixed connection of clamping jaw (19) inner wall, just electromagnet (28) are close to right backup pad (26).

2. The double-station steel pipe transfer device for steel pipe production according to claim 1, wherein the driving assembly comprises a first base (1), a motor (2), a first coupler (3) and a reduction gearbox (4), the top of the first base (1) is fixedly connected with the motor (2), the output end of the motor (2) is fixedly connected with one end of the first coupler (3), the other end of the first coupler (3) is fixedly connected with the reduction gearbox (4), the reduction gearbox (4) is fixedly connected with the top of the first base (1), and two side faces of the reduction gearbox (4) are respectively and movably connected with the connecting assembly.

3. Double-station steel pipe transfer device for steel pipe production according to claim 2, characterized in that the connecting assembly comprises a second coupling (5) and connecting shafts (6), two ends of each connecting shaft (6) are fixedly connected with the second coupling (5) respectively, a plurality of the second couplings (5) are movably connected with fixed bearings (9) respectively, one end of one second coupling (5) is movably connected with one side face of a reduction gearbox (4), the other side face of the reduction gearbox (4) is movably connected with one end of a third coupling (18), and the other end of the third coupling (18) is movably connected with one of the fixed bearings (9).

4. A duplex position steel pipe transfer apparatus for steel pipe production according to claim 3, characterized in that the support assembly further comprises bearing blocks (8), a plurality of the bearing blocks (8) are fixedly connected to opposite sides of the top of the first base (1), and each bearing block (8) is fixedly connected to a fixed bearing (9) inside.

5. The double-station steel pipe transfer device for steel pipe production according to claim 4, wherein the clamping assembly further comprises a telescopic piece (22), the telescopic piece (22) is arranged inside the spring (23), one end of the telescopic piece (22) is fixedly connected with the inner wall of one side of the sliding rail (20), and the other end of the telescopic piece (22) is fixedly connected with one side face of the sliding block (21).

6. Double-station steel pipe transfer device for steel pipe production according to claim 1, characterized in that the sliding arm (11) is internally provided with a sliding groove, and the sliding bearing (12) is movably arranged in the sliding groove.

7. Double-station steel pipe transfer device for steel pipe production according to claim 1, characterized in that the transfer arm (15) is provided with a mounting hole near one end of the lifting arm (13), the second pin shaft (16) is fixedly arranged in the mounting hole, two ends of the second pin shaft (16) are positioned outside the second pin shaft (16), and two ends of the second pin shaft (16) penetrate through one end of the transmission arm (17).

8. Double-station steel pipe transfer device for steel pipe production according to claim 1, characterized in that the left baffle (25) is in conformity with the right support plate (26) in specification, the right support plate (26) being made of iron-nickel alloy.

9. Double-station steel pipe transfer device for steel pipe production according to claim 1, characterized in that two of the slide rails (20) are symmetrically distributed about the central axis of the jaws (19).