Multi-steel pipe precision transportation and feeding device

Abstract

The application provides a multi-steel pipe precise conveying and feeding device, and belongs to the field of steel pipe conveying and feeding. The device comprises a base and a control box. The control box is fixedly connected to the top surface of the base. A driving system is installed on the bottom surface of the base. A top groove is formed in the top surface of the base. The device is provided with a connecting block, a connecting plate, a slot and a steel pipe positioning assembly. When conveying and feeding the steel pipe, the steel pipe positioning assembly can be inserted into the connecting plate on the fixed block according to the actual conveying needs of the steel pipe. Then, the remaining connecting plates and the slot on the mounting plate are inserted and fixed. Thus, the arrangement and installation of the multiple steel pipe positioning assemblies can be realized. The device can position multiple steel pipes at a time, and can realize the feeding of multiple steel pipes at a time. The efficiency of the steel pipe feeding is effectively improved. The device has the advantages of stable steel pipe conveying and feeding and high efficiency.

Description

Technical Field

[0001] This invention relates to the field of steel pipe transportation and feeding technology, specifically a multi-steel pipe precision transportation and feeding device. Background Technology

[0002] Steel pipes, as an important metallic material, play a vital role in various fields such as construction, energy, transportation, and machinery. Their superior mechanical properties, corrosion resistance, and high-temperature resistance make them an ideal choice for various complex engineering projects and applications. With technological advancements and industrial development, the application areas of steel pipes will continue to expand. Because steel pipes are long and tubular, cranes are typically used for lifting and transporting them. To improve their service life and performance, modern steel pipes often undergo anti-corrosion and rust-proof coatings or surface heat treatment. However, lifting steel pipes requires securing ropes to their outer walls, and the friction between the ropes and the pipe during lifting inevitably damages the outer surface structure and coating.

[0003] Therefore, there is an urgent need for a steel pipe transportation and loading device that can avoid damaging the surface structure and coating of steel pipes. Summary of the Invention

[0004] To address the problems mentioned in the background section, the present invention utilizes several mounting plates to support the inner ring of the steel pipe, thereby preventing damage to the steel pipe.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-steel pipe precision transport and feeding device, comprising a base, characterized in that a drive system is installed on the base, a top groove is formed on the base, a movable plate is movably connected to the top groove, a transverse drive assembly is provided on one side of the base, an auxiliary support assembly is provided on the movable plate, a first drive assembly is provided on the movable plate, a connecting block is provided in cooperation with the first drive assembly, a mounting plate is connected to the connecting block, an electric push rod and several positioning plates are provided on the mounting plate, the electric push rod is away from or close to the mounting plate, and the several positioning plates are away from or close to each other.

[0006] As a preferred embodiment of the present invention, the mounting plate is provided with a plurality of inclined grooves, and the lines connecting the plurality of inclined grooves converge at a point, through which the extension line of the electric push rod passes.

[0007] As a preferred embodiment of the present invention, each inclined groove is movably connected with an installation block, one side of which is connected to a positioning plate, and the other side of the installation plate extends out of the inclined groove.

[0008] As a preferred embodiment of the present invention, a circular plate is fixedly connected to the electric push rod, and one end of a plurality of connecting rods is hinged to the circular plate, and the other end of the connecting rod is hinged to the mounting block.

[0009] As a preferred embodiment of the present invention, the mounting plate is square, and each of the inclined grooves extends from the four corners of the mounting plate toward the center of gravity.

[0010] As a preferred embodiment of the present invention, a second sliding groove is provided on the inner sidewall of the inclined groove, and a second slider is fixedly connected to the sidewall of the mounting block, the second slider being slidably disposed in the second sliding groove.

[0011] In a preferred embodiment of the present invention, a fixed shell is fixedly connected to the movable plate, a movable shell is movably connected inside the fixed shell, a fixed block is movably connected inside the movable shell, the first driving component is disposed inside the movable shell, the fixed block cooperates with the first driving component, the connecting block is connected to the fixed block, and a connecting plate is disposed on the connecting block.

[0012] As a preferred embodiment of the present invention, the mounting plate has a slot on one side, the connecting plate has a plurality of threaded holes, the connecting plate is inserted into an adjacent slot, and the connecting plate and the mounting plate are connected and installed by bolts.

[0013] As a preferred embodiment of the present invention, the lateral drive assembly includes a first motor, the first motor is fixedly connected to the center of the left side wall of the base, a first threaded rod is fixedly connected to the rotor of the first motor, and the end of the first threaded rod away from the first motor passes through the base and is threadedly connected to the movable plate.

[0014] In a preferred embodiment of the present invention, the auxiliary support assembly includes a side groove, and the side of each movable plate is provided with a side groove. Each side groove is provided with a support plate, and a fixed shaft is fixedly connected to the support plate. The fixed shaft is movably connected to the inner wall of the side groove, and a spring is sleeved on the fixed shaft. One end of the spring is fixedly connected to the inner wall of the side groove, and the other end of the spring is fixedly connected to the support plate. The front and rear side walls of the top groove are both arc-shaped near the right side.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In this invention, the operator places the pipe to be polished on the top of the support plate, and then the operator starts the first motor to rotate, thereby clamping the pipe and making the pipe and rollers close together. When the second gear rotates, it will drive the rubber wheel to move to the right until the rubber wheel and the pipe are close together. The operator can start the second motor to rotate and drive the pipe to rotate. The operator starts the second electric cylinder to retract, and then the operator starts the third motor to rotate and drive the polishing body to move down. Then the first electric cylinder is started to extend, so that the polishing body is close to the inner wall of the pipe. Then the operator starts the second electric cylinder to extend. At this time, the third motor rotates and drives the seventh gear to rotate, thereby driving the polishing body to move up and down back and forth, thereby polishing the inner wall of the pipe. This device has the advantage of being easy to use.

[0016] (2) The present invention, through the setting of drive box, threaded rod, movable rod, through port, slider, telescopic block, groove, second compression spring, first compression spring, grinding body and fifth gear, allows the operator to adjust the rotation of the fifth gear, thereby driving the threaded rod to rotate, thereby driving the movable rod, slider, telescopic block and grinding body to move down, so that the grinding body is inserted into the inside of the pipe, and then the first electric cylinder is activated to extend, thereby compressing the first compression spring, thereby pushing the slider, telescopic block and grinding body to move to the right until the grinding body is in close contact with the inner wall of the pipe. Attached Figure Description

[0017] Figure 1 This is a perspective view of a multi-steel pipe precision transport and feeding device according to the present invention; Figure 2 This is a perspective view of the clamping frame of the present invention; Figure 3 For the present invention Figure 1 A magnified view of a portion of the image; Figure 4 This is a perspective view of the winding box of the present invention.

[0018] Figure 5 For the present invention Figure 1 A magnified view of a portion of the image.

[0019] Figure 6 This is a schematic diagram of the connecting frame structure of the present invention; Figure 7 For the present invention Figure 1 Enlarged view of a specific area. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0021] like Figure 1-7As shown, an embodiment of the present invention provides a multi-steel pipe precision transport and loading device, including a base 1. A top groove 4 is formed on the top surface of the base 1, and a movable plate 5 is movably connected within the top groove 4. A transverse drive assembly 6 is provided on the base 1, and the transverse drive assembly 6 includes a first motor 15. The first motor 15 is fixedly connected to the base 1, and a first threaded rod 16 is fixedly connected to the rotor of the first motor 15. The end of the first threaded rod 16 away from the first motor 15 passes through the base 1 and is threadedly connected to the movable plate 5. By driving the first threaded rod 16 to rotate through the first motor 15, the movable plate 5 can move to one side within the top groove 4, thereby conveniently transferring the steel pipes to their destination and facilitating the steel pipe transport and loading operation.

[0022] Furthermore, the front and rear side walls of the top groove 4 are provided with first sliding grooves 40, and the front and rear side walls of the movable plate 5 are fixedly connected with first sliders 41. The first sliders 41 are inserted into the first sliding grooves 40 and are movably connected to the first sliding grooves 40, which allows the movable plate 5 to move stably in the top groove 4.

[0023] An auxiliary support assembly 7 is provided on the movable plate 5. The auxiliary support assembly 7 includes a side groove 17. Side grooves 17 are provided on the front and rear side walls of the movable plate 5. A support plate 18 is provided in each side groove 17. A fixed shaft 19 is fixedly connected to the side of the support plate 18 near the control box 2. The fixed shaft 19 is movably connected to the inner wall of the side groove 17. A spring 20 is sleeved on the fixed shaft 19. One end of the spring 20 is fixedly connected to the inner wall of the side groove 17, and the other end of the spring 20 is fixedly connected to the support plate 18. The front and rear side walls of the top groove 4 are arc-shaped near the right side. The movable plate 5 and the support plate 18 are L-shaped. Two auxiliary wheels 39 are fixedly installed on the bottom surface of the vertical side of the movable plate 5. The auxiliary wheels 39 are on the same plane as the drive system 3. When the movable plate 5 moves out of the top groove 4, the support plate 18 can rotate around the fixed shaft 19 under the action of 20, so that the support plate 18 unfolds, and the combined action of the movable plate 4 can achieve multi-point support for the base 1, thereby effectively improving the stability and safety of the feeding device for steel pipe feeding.

[0024] A fixed shell 8 is fixedly connected to the top surface of the movable plate 5. A movable shell 9 is movably connected inside the fixed shell 8. A fixed block 10 is movably connected inside the movable shell 9. A vertical drive assembly 11 is provided inside the fixed shell 8 and the movable shell 9. The vertical drive assembly 11 includes a second threaded rod 21. The second threaded rod 21 is movably connected to the inner cavity of the fixed shell 8. The second threaded rod 21 is inserted into the side wall of the movable shell 9 and threadedly connected to the movable shell 9. A first worm gear 22 is fixedly connected near the bottom end of the second threaded rod 21. A first worm 23 is meshed on the side wall of the first worm gear 22. The first worm 23 passes through the rear side wall of the fixed shell 8 and is fixedly connected to a second motor 24. A third threaded rod 25 is movably connected inside the movable shell 9. The third threaded rod 25 passes through the fixed block 10 and is threadedly connected to the fixed block 10. A second worm gear 26 is fixedly connected near the top end of the third threaded rod 25. A second worm 27 is meshed on one side of the second worm gear 26. The rear end of the second worm 27 passes through the rear side wall of the movable shell 9 and is fixedly connected to a third motor 28. Driven by the second motor 24 and the third motor 28, the height of the steel pipe feeding can be adjusted. This not only lowers the center of gravity during the transfer of the steel pipe, thereby improving the safety of feeding, but also facilitates the placement of the steel pipe onto the transport vehicle, improving the feeding efficiency. In addition, by using a worm gear drive and utilizing the self-locking property of the worm gear, the stability and safety of the feeding device for steel pipes can be effectively improved.

[0025] A connecting block 12 is fixedly connected to the front side wall of the fixed block 10. The connecting block 12 is square and has four connecting plates 13 fixedly connected to its side wall. A steel pipe positioning assembly 14 is installed on the connecting plate 13. The steel pipe positioning assembly 14 includes a mounting plate 29. The mounting plate 29 is square and has inclined grooves 30 near each of the four corners. Mounting blocks 31 are movably connected in each of the inclined grooves 30. Positioning plates 32 are fixedly connected to the front side wall of each mounting block 31. An electric push rod 33 is fixedly connected to the center of the rear side wall of the mounting plate 29. A circular plate 34 is fixedly connected to the side wall of the electric push rod 33. Four connecting rods 35 are evenly distributed and movably connected to the front side wall of the circular plate 34. The side of the mounting plate 29 furthest from the circular plate 34 is movably connected to four mounting blocks 31. The mounting plate 29 has slots 36 at the center of each of its four side walls. The connecting plate 13 has several threaded holes 37 evenly distributed on it. The connecting plate 13 is inserted into the adjacent slots 36. The connecting plate 13 and the mounting plate 29 are connected and installed by bolts 38. By inserting the connecting plate 13 into the slots 36, the connection and installation operation between adjacent steel pipe positioning components 14 can be realized. Multiple steel pipe positioning components 14 can be arranged and installed according to the actual needs of steel pipe feeding, thereby realizing the feeding operation of multiple steel pipes at one time and effectively improving the efficiency of steel pipe transportation and feeding.

[0026] A second sliding groove 42 is provided on the inner side wall of the inclined groove 30, and a second slider 43 is fixedly connected to the side wall of the mounting block 31. The second slider 43 is movably connected to the second sliding groove 42, which allows the mounting block 31 to move stably in the inclined groove 30, thereby improving the stability of the steel pipe positioning and clamping, and facilitating the loading operation of the steel pipe. Example 2

[0027] like Figure 1-7 As shown, an embodiment of the present invention provides a multi-steel pipe precision transport and feeding device, including a base 1, a control box 2 fixedly connected to the top surface of the base 1, and a drive system 3 installed on the bottom surface of the base 1. In this embodiment, the control box 2 can be connected to an external remote control device, thereby enabling the device to be driven by the external remote control device, and the drive system 3 can be used to move the device, facilitating the position transfer operation of the steel pipe and making it convenient for steel pipe feeding.

[0028] A top groove 4 is formed on the top surface of the base 1, and a movable plate 5 is movably connected within the top groove 4. A transverse drive assembly 6 is provided on the base 1, which includes a first motor 15. The first motor 15 is fixedly connected to the center of the left side wall of the base 1, and a first threaded rod 16 is fixedly connected to the rotor of the first motor 15. The end of the first threaded rod 16 away from the first motor 15 passes through the base 1 and is threadedly connected to the movable plate 5. By driving the first threaded rod 16 to rotate through the first motor 15, the movable plate 5 can move to one side within the top groove 4, thereby conveniently transferring the steel pipe into the truck bed of the transport vehicle, facilitating the loading and transportation of steel pipes.

[0029] The front and rear side walls of the top groove 4 are provided with first sliding grooves 40, and the front and rear side walls of the movable plate 5 are fixedly connected with first sliders 41. The first sliders 41 are inserted into the first sliding grooves 40 and are movably connected to the first sliding grooves 40, so that the movable plate 5 can move stably in the top groove 4.

[0030] An auxiliary support assembly 7 is provided on the movable plate 5. The auxiliary support assembly 7 includes a side groove 17. Side grooves 17 are provided on the front and rear side walls of the movable plate 5. A support plate 18 is provided in each side groove 17. A fixed shaft 19 is fixedly connected to the side of the support plate 18 near the control box 2. The fixed shaft 19 is movably connected to the inner wall of the side groove 17. A spring 20 is sleeved on the fixed shaft 19. One end of the spring 20 is fixedly connected to the inner wall of the side groove 17, and the other end of the spring 20 is fixedly connected to the support plate 18. The front and rear side walls of the top groove 4 are arc-shaped near the right side. The movable plate 5 and the support plate 18 are L-shaped. Two auxiliary wheels 39 are fixedly installed on the bottom surface of the vertical side of the movable plate 5. The auxiliary wheels 39 are on the same plane as the drive system 3. When the movable plate 5 moves out of the top groove 4, the support plate 18 can rotate around the fixed shaft 19 under the action of 20, so that the support plate 18 unfolds, and the combined action of the movable plate 4 can achieve multi-point support for the base 1, thereby effectively improving the stability and safety of the feeding device for steel pipe feeding.

[0031] A fixed shell 8 is fixedly connected to the top surface of the movable plate 5. A movable shell 9 is movably connected inside the fixed shell 8. A fixed block 10 is movably connected inside the movable shell 9. A vertical drive assembly 11 is provided inside the fixed shell 8 and the movable shell 9. The vertical drive assembly 11 includes a second threaded rod 21. The second threaded rod 21 is movably connected to the inner cavity of the fixed shell 8. The second threaded rod 21 is inserted into the side wall of the movable shell 9 and threadedly connected to the movable shell 9. A first worm gear 22 is fixedly connected near the bottom end of the second threaded rod 21. A first worm 23 is meshed on the side wall of the first worm gear 22. The first worm 23 passes through the rear side wall of the fixed shell 8 and is fixedly connected to a second motor 24. A third threaded rod 25 is movably connected inside the movable shell 9. The third threaded rod 25 passes through the fixed block 10 and is threadedly connected to the fixed block 10. A second worm gear 26 is fixedly connected near the top end of the third threaded rod 25. A second worm 27 is meshed on one side of the second worm gear 26. The rear end of the second worm 27 passes through the rear side wall of the movable shell 9 and is fixedly connected to a third motor 28.

[0032] Driven by the second motor 24 and the third motor 28, the height of the steel pipe feeding can be adjusted. This not only lowers the center of gravity during the transfer of the steel pipe, thereby improving the safety of feeding, but also facilitates the placement of the steel pipe onto the transport vehicle, improving the feeding efficiency. In addition, by using a worm gear drive and utilizing the self-locking property of the worm gear, the stability and safety of the feeding device for steel pipes can be effectively improved.

[0033] A connecting block 12 is fixedly connected to the front side wall of the fixing block 10. The connecting block 12 is square and has four connecting plates 13 fixedly connected to its side wall. A steel pipe positioning assembly 14 is installed on the connecting plate 13. The steel pipe positioning assembly 14 includes a mounting plate 29. The mounting plate 29 is square and has inclined grooves 30 near each of the four corners. Mounting blocks 31 are movably connected in each of the inclined grooves 30. A positioning plate 32 is fixedly connected to the front side wall of each mounting block 31. An electric motor is fixedly connected to the center of the rear side wall of the mounting plate 29. The push rod 33 has a circular plate 34 fixedly connected to its side wall. Four connecting rods 35 are evenly distributed and movably connected to the front side wall of the circular plate 34. The side of the connecting rods 35 away from the circular plate 34 is movably connected to four mounting blocks 31 respectively. The mounting plate 29 has slots 36 in the center of each of its four side walls. The connecting plate 13 has several threaded holes 37 evenly distributed. The connecting plate 13 is inserted into the adjacent slots 36. The connecting plate 13 and the mounting plate 29 are connected and installed by bolts 38. In this embodiment, the connection and installation of adjacent steel pipe positioning components 14 can be achieved by inserting the connecting plate 13 into the slot 36. Multiple steel pipe positioning components 14 can be arranged and installed according to the actual needs of steel pipe feeding, thereby realizing the feeding of multiple steel pipes at one time and effectively improving the efficiency of steel pipe transportation and feeding. A second sliding groove 42 is provided on the inner side wall of the inclined groove 30, and a second slider 43 is fixedly connected to the side wall of the mounting block 31. The second slider 43 is movably connected to the second sliding groove 42, which allows the mounting block 31 to move stably in the inclined groove 30, thereby improving the stability of steel pipe positioning and clamping and facilitating the feeding operation of steel pipes.

[0034] A method for using a multi-steel pipe precision transport and feeding device includes the following steps: S1: First, select a specified number of steel pipe positioning components 14 according to the needs of steel pipe transportation. Insert the connecting plate 13 into the slot 36 on the side wall of the mounting plate 29, and insert the mounting plate 29 into the slot 36 to a specified depth according to the diameter of the steel pipe to be loaded. Then screw the bolt 38 into the mounting plate 29 so that the bolt 38 extends into the slot 36 and is threadedly connected to the threaded hole 37, thereby realizing the fixed connection between the connecting plate 13 and the mounting plate 29. S2: Repeat the operation of step S1 above to install the steel pipe positioning components 14 onto the connecting plate 13 of the connecting block 12 on the fixing block 10, forming a basic steel pipe positioning component 14 arrangement and installation operation. S3: Select the remaining connecting blocks 12 with connecting plates 13, and insert the connecting plates 13 into the slots 36 on the other side walls of the steel pipe positioning assembly 14 according to the needs of steel pipe transportation and loading. Then, use bolts 38 to fix the connecting plates 13 and the mounting plate 29. Repeat the operations in steps S1 and S2 above to realize the arrangement and installation of the steel pipe positioning assembly 14 again. S4: Repeat steps S1-S3 above until the actual required quantity and method of steel pipe transportation and loading are the same as the quantity and arrangement of steel pipe positioning components 14. Then stop the installation of steel pipe positioning components 14 and connecting blocks 12. S5: Following the steps S1-S4 above, install a device for transporting and loading steel pipes that is mirror-image of the above structure. S6: During the process of transporting and loading steel pipes, the operator controls the equipment inside the control box 2 through an external remote control device. The drive system 3 is used to move the two devices for transporting and loading steel pipes to the two sides of the steel pipe to be transported. The position of the steel pipe transporting and loading device is adjusted by the drive system 3 so that each steel pipe positioning component 14 is aligned with a steel pipe. The drive system 3 is started so that the positioning plate 32 on the steel pipe positioning component 14 is inserted into both ends of the inner cavity of the steel pipe. S7: Start the electric push rod 33. The electric push rod 33 drives the circular plate 34 to move. The circular plate 34 drives the mounting block 31 to move in the inclined groove 30 through the connecting rod 35. The mounting block 31 drives the positioning plate 32 to move at both ends of the steel pipe cavity, so that the positioning plate 32 can be clamped on the inner wall of both ends of the steel pipe, realizing the positioning and clamping operation of the steel pipe. S8: Then start the second motor 24. The second motor 24 drives the first worm 23 to mesh with the first worm wheel 22 to rotate. The first worm wheel 22 drives the second threaded rod 21 to rotate. The rotation of the second threaded rod 21 can make the movable shell 9 move up and down in the inner cavity of the fixed shell 8, so as to lift the steel pipe to a certain height. Then stop the second motor 24 from continuing to rotate, and move the steel pipe from the stack of steel pipes to one side through the drive system 3. Then start the second motor 24 again and make the second motor 24 rotate in the opposite direction to lower the center of gravity of the steel pipe being transported, improve the stability of the steel pipe during the loading and transfer process, and stop the rotation of the second motor 24. S9: After the steel pipe is transported to the designated position, the second motor 24 and the third motor 28 are started according to the height requirements of the transport vehicle. The second motor 24 drives the second threaded rod 21 to rotate through the first worm gear 23 meshing with the first worm wheel 22, so that the movable shell 9 rises to the designated height. The third motor 28 drives the third threaded rod 25 to rotate through the second worm gear 27 meshing with the second worm wheel 26, so that the fixed block 10 drives the connecting block 12 to rise to the designated height. The height of the steel pipe can be adjusted by the movement of the connecting block 12 until the steel pipe is adjusted to the appropriate height, and then the rotation of the second motor 24 and the third motor 28 is stopped. S10: The base 1 is moved to the bottom of the vehicle by the drive system 3 and the first motor 15 is started. The first motor 15 drives the first threaded rod 16 to rotate, so that the first threaded rod 16 drives the movable plate 5 to move out of the top groove 4. During the movement of the movable plate 5, the support plate 18 can be automatically unfolded under the action of the spring 20, increasing the support points and effectively improving the stability of the device. S11: When the steel pipe moves to a suitable position inside the truck bed of the transport vehicle, the first motor 15 is stopped, and the second motor 24 and the third motor 28 are started, so that the second motor 24 and the third motor 28 rotate in opposite directions, so that the steel pipe can be conveniently loaded into the transport vehicle. After the steel pipe is placed stably, the electric push rod 33 is started. The electric push rod 33 pulls the connecting rod 35 through the circular plate 34. The connecting rod 35 drives the positioning plate 32 to move towards the center of the mounting plate 29 through the mounting block 31, releasing the fixation of the steel pipe. Then, the steel pipe transport and loading device is driven by the drive system 3 to move away from the steel pipe, so that the positioning plate 32 is pulled out from the steel pipe, completing the single loading operation of the steel pipe. S12: Repeat steps S6-S11 above to achieve the transportation and loading operation of multiple steel pipes in a single operation until the transportation and loading of steel pipes is completed.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-steel pipe precision transport and feeding device, comprising a base (1), characterized in that, A drive system (3) is installed on the base (1). A top groove (4) is opened on the base (1). A movable plate (5) is movably connected to the top groove (4). A horizontal drive assembly (6) is provided on one side of the base (1). An auxiliary support assembly (7) is provided on the movable plate (5). A vertical drive assembly (11) is provided on the movable plate (5). The vertical drive assembly (11) is a worm gear and worm self-locking transmission structure. A connecting block (12) is provided in cooperation with the vertical drive assembly (11). Multiple connecting plates (13) are fixed on the connecting block (12). Several sets of steel pipe positioning assemblies (14) can be detachably assembled on the connecting block (12) through the connecting plates (13). Each set of steel pipe positioning assemblies (14) includes an installation plate (29). A slot (36) is opened on the side wall of the installation plate (29). The connecting plate (13) is inserted into the slot (36) and locked by bolts (38) to realize the modular splicing expansion of the steel pipe positioning assembly (14). The mounting plate (29) is provided with an electric push rod (33) and several positioning plates (32). The electric push rod (33) drives the several positioning plates (32) to move away from each other. The positioning plates (32) can extend into the inner cavity of the steel pipe and tighten from the inner wall of the steel pipe to achieve clamping. The auxiliary support component (7) includes a side groove (17), a support plate (18), a fixed shaft (19), and a spring (20). When the transverse drive component (6) drives the movable plate (5) to extend outward from the top groove (4), the support plate (18) is released from the constraint of the top groove (4), and the spring (20) drives the support plate (18) to automatically rotate and unfold, forming a multi-point anti-overturning support for the whole machine.

2. The multi-steel pipe precision transport and feeding device according to claim 1, characterized in that, The mounting plate (29) has several inclined grooves (30), and the lines connecting the several inclined grooves (30) converge at a point, through which the extension line of the electric push rod (33) passes.

3. The multi-steel pipe precision transport and feeding device according to claim 2, characterized in that, Each inclined groove (30) is movably connected to an installation block (31), and one side of the installation block (31) is connected to the positioning plate (32).

4. The multi-steel pipe precision transport and feeding device according to claim 2, characterized in that, A circular plate (34) is fixedly connected to the electric push rod (33), and one end of several connecting rods (35) is hinged to the circular plate (34), and the other end of the connecting rods (35) is hinged to the mounting block (31).

5. The multi-steel pipe precision transport and feeding device according to claim 2, characterized in that, The mounting plate (29) is square, and each of the inclined slots (30) extends from the four corners of the mounting plate (29) toward the center of gravity.

6. The multi-steel pipe precision transport and feeding device according to claim 3, characterized in that, The inner sidewall of the inclined groove (30) is provided with a second sliding groove (42), and the sidewall of the mounting block (31) is fixedly connected with a second slider (43), which is slidably disposed in the second sliding groove (42).

7. The multi-steel pipe precision transport and feeding device according to claim 1, characterized in that, A fixed shell (8) is fixedly connected to the movable plate (5), a movable shell (9) is movably connected inside the fixed shell (8), and a fixed block (10) is movably connected inside the movable shell (9); the vertical drive assembly (11) is disposed inside the fixed shell (8) and the movable shell (9), and the vertical drive assembly (11) includes a second threaded rod (21), a first worm gear (22), a first worm (23), a second motor (24), a third threaded rod (25), a second worm gear (26), a second worm (27), and a third motor (28); the fixed block (10) cooperates with the vertical drive assembly (11), and the connecting block (12) is connected to the fixed block (10).

8. The multi-steel pipe precision transport and feeding device according to claim 1, characterized in that, The lateral drive assembly (6) includes a first motor (15), the first motor (15) is fixedly connected to the side wall of the base (1), and a first threaded rod (16) is fixedly connected to the rotor of the first motor (15). The end of the first threaded rod (16) away from the first motor (15) passes through the base (1) and is threadedly connected to the movable plate (5).

9. The multi-steel pipe precision transport and feeding device according to claim 1, characterized in that, The movable plate (5) has a side groove (17) on each side, and a support plate (18) is provided in each side groove (17). A fixed shaft (19) is fixedly connected to the support plate (18). The fixed shaft (19) is movably connected to the inner wall of the side groove (17). A spring (20) is sleeved on the fixed shaft (19). One end of the spring (20) is fixedly connected to the inner wall of the side groove (17), and the other end of the spring (20) is fixedly connected to the support plate (18). The front and rear side walls of the top groove (4) are arc-shaped near the protruding end.

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