Steel pipe pole pipe multi-station plasma cutting and bevel processing equipment

Abstract

This invention relates to the field of metal cutting and welding equipment technology, specifically to a multi-station plasma cutting and beveling equipment for steel pipes and rods. The equipment includes a worktable with two support frames fixedly mounted on its top. A mounting shaft is rotatably mounted on the opposite sides of the tops of the two support frames via bearings. Several feed tubes are embedded and fixedly mounted on one side of each mounting shaft. Several electrically controlled telescopic rods are hinged to the bottom of each feed tube via a bracket. A sliding mechanism is hinged to the bottom end of each electrically controlled telescopic rod. The equipment features a fan-shaped electromagnet, enabling millisecond-level attraction and release, matching the multi-station plasma cutting cycle time, eliminating mechanical jamming and cylinder leakage, and providing high-temperature resistance and resistance to cutting fumes and water mist. It prevents impact to the steel pipe / rod body and bevel end face, and avoids extrusion deformation. The equipment also allows for control of the attraction force and ejection force by adjusting the excitation current, adapting to different pipe diameters and wall thicknesses.

Description

Technical Field

[0001] This invention relates to the field of metal cutting and welding equipment technology, specifically to a multi-station plasma cutting and beveling equipment for steel pipes and tubes. Background Technology

[0002] Plasma arc cutting involves passing a mixture of gases through a high-frequency electric arc. The gases can be air, or a mixture of hydrogen, argon, and nitrogen. The high-frequency arc "decomposes" or ionizes some of the gases into basic atomic particles, thus generating "plasma." The arc then jumps onto the stainless steel workpiece, and high-pressure gas blows the plasma out of the torch nozzle at an exit velocity of 800–1000 meters per second (approximately Mach 3). The high energy released when the various gases in the plasma return to their normal state generates a temperature of 2700°C. This temperature is almost twice the melting point of stainless steel. This causes the stainless steel to melt rapidly, and the molten metal is blown away by the high-pressure gas stream. Therefore, fume extraction and slag removal equipment is required.

[0003] In the processing of steel pipe poles and tubes, it is necessary to cut the steel pipe poles and tubes, and some processing requires cutting into bevels. Plasma cutting is commonly used, and a standard cutting torch is used for underwater cutting. However, existing steel pipe pole and tube cutting processes have poor multi-station adaptability, making it difficult to process steel pipe poles and tubes of different sizes. In addition, multiple equipment are required for loading and unloading, which is inconvenient and lacks a high degree of automation. Based on this, a multi-station plasma cutting and beveling equipment for steel pipe poles and tubes is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-station plasma cutting and beveling equipment for steel pipes and tubes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-station plasma cutting and beveling equipment for steel pipes, comprising a worktable, two support frames fixedly installed on the top of the worktable, and mounting shafts rotatably mounted on opposite sides of the tops of the two support frames via bearings. A plurality of feed tubes are embedded and fixedly installed on one side of the mounting shafts. A plurality of electrically controlled telescopic rods are hinged to the bottom of the feed tubes via brackets. A sliding mechanism is hinged to the bottom end of each electrically controlled telescopic rod. A plurality of hollow clamps are fixedly sleeved on the outer side of the feed tubes. A plurality of hydraulic telescopic rods are sleeved inside the hollow clamps. A sector-shaped electromagnet is fixedly installed at the output end of each hydraulic telescopic rod. Wear-resistant rubber cones are fixedly installed at both the top and bottom ends of each sector-shaped electromagnet. A U-shaped multi-head connecting pipe connects to the outer side of the hollow clamps. The input end of the C-shaped multi-head connecting pipe is connected to a hydraulic pipe, and the other end of the hydraulic pipe is connected to a hydraulic box. A sealing piston is movably sleeved inside the hydraulic box. An electrically controlled telescopic column is fixedly installed at the bottom of the sealing piston. A sub-controller is fixedly installed on the outside of the feeding pipe. An alignment cone is fixedly installed at the top of the feeding pipe. A high-precision screw drive mechanism is driven to the opposite sides of the two support frames. A moving seat is driven to the moving part of the high-precision screw drive mechanism. A rotary bending plasma cutting assembly nozzle is rotatably installed at the bottom of the moving seat. A water storage tank is fixedly installed on the top of the worktable. Several strip electromagnets are embedded in the bottom of the water storage tank. A guide slope is installed on one side of each strip electromagnet. A water circulation filtration mechanism is connected inside the water storage tank.

[0006] Preferably, the feed tubes are linearly and evenly distributed on the outside of the mounting shaft.

[0007] Preferably, flanges are provided at both ends of the mounting shaft, and matching bolt holes are provided at the corresponding positions of the support frame and the flanges. The track of the sliding mechanism is fixedly installed on the top of the workbench, and the electrically controlled telescopic rods are linearly and evenly distributed at the bottom of the feed tube.

[0008] Preferably, the hollow hoop is linearly and evenly distributed on the outside of the feed tube, the hydraulic telescopic rod is circumferentially and evenly distributed inside the hollow hoop, the hydraulic telescopic rod is fixedly inserted through the hollow hoop and extends movably into the inside of the feed tube, and the fan-shaped electromagnet is circumferentially and evenly distributed inside the feed tube.

[0009] Preferably, the end of the wear-resistant rubber cone away from the fan-shaped electromagnet is fixedly installed on the inner wall of the feed pipe, and the wear-resistant rubber cone is conical-fan shaped, with a low-friction coating on the outer side of the wear-resistant rubber cone.

[0010] Preferably, the electrically controlled telescopic column is fixedly installed inside the hydraulic box, the hydraulic box is fixedly installed on the outside of the mounting shaft by a bracket, the hydraulic box, hydraulic pipe and hollow hoop are filled with hydraulic oil, and the input end of the hydraulic telescopic rod is connected to the inside of the hollow hoop.

[0011] Preferably, the bar electromagnets are linearly and uniformly distributed inside the bottom of the water storage tank, and the distribution shape is adapted to the shape of the water storage tank. The water storage tank is located on the opposite side of the support frame. One of the two support frames is provided with a discharge groove inside. The specifications and dimensions of the guide slope are adapted to the specifications and dimensions of the discharge groove.

[0012] Preferably, the water circulation filtration mechanism is fixedly installed on the inner side of the bottom of the workbench by a bracket, and the input and output ends of the water circulation filtration mechanism are respectively connected to the diagonal positions of the water storage tank through pipes.

[0013] Preferably, a plurality of movable telescopic rods are slidably installed on one side of the top of the workbench. A material feeding plate is hinged to the top of the movable telescopic rods, and an inclined telescopic column is hinged to one side of the bottom of the material feeding plate. The other end of the inclined telescopic column is hinged to the outside of the water storage tank. The position and number of the material feeding plates correspond to the position and number of the material feeding pipes.

[0014] Preferably, a main control console is fixedly installed on the top of the workbench, and the input terminal of the sub-controller is electrically connected to the output terminal of the main control console via a wire.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the equipment is in use, the steel pipe rod or tube to be processed is inserted into the inner side of the feeding tube. At this time, the extension and retraction of the electrically controlled telescopic column is adjusted according to the diameter of the steel pipe rod or tube. Then, specific points of multiple sector-shaped electromagnets are activated to produce an adsorption and fixing effect on the processed steel pipe. The high-precision screw transmission mechanism moves to drive the moving seat and the rotary bending plasma cutting assembly nozzle to move. After the installation angle of the rotary bending plasma cutting assembly nozzle relative to the moving seat is set, the rotary bending plasma cutting assembly nozzle is moved to cause the rotary bending plasma cutting assembly nozzle to move. The plasma cutting process cuts steel pipes. After the steel pipe inside the feed tube is cut, it falls into the inner side of the water storage tank. At this time, the bar electromagnet generates a linear circulating electromagnetic path to gradually attract the cut steel pipe material and move it to the guide slope position. After the operation is completed, multiple sets of fan-shaped electromagnets generate corresponding electromagnetic effects and use electromagnetic repulsion and electromagnetic force strength control to make the steel pipe gradually push out or pop out of the feed tube. Then, the next operation process is carried out through the loading mechanism. The overall operation is convenient, the loading and unloading are stable and highly intelligent, and it is convenient to cooperate with multi-station operations. 2. The fan-shaped electromagnet enables the equipment to achieve millisecond-level attraction and release, matching the multi-station cycle of plasma cutting. It eliminates mechanical jamming and cylinder leakage, is resistant to high temperatures and cutting fumes and water mist, and does not collide with the steel pipe rod body or bevel end face, preventing extrusion deformation. By adjusting the excitation current, the attraction force and ejection force can be controlled, making it suitable for different pipe diameters and wall thicknesses. 3. After the steel pipe is cut, it falls into the inner side of the water storage tank. Multiple linearly distributed bar electromagnets generate a linear circulating electromagnetic path, which gradually attracts and guides the cut steel pipe material, and moves the steel pipe material to the guide slope position. Finally, it is discharged into the collection area through the slope of the water storage tank and the opening of the discharge channel, which facilitates material discharge. The structure is simple and easy to use. Attached Figure Description

[0016] Figure 1 This is a front-view stereoscopic structural diagram of the present invention.

[0017] Figure 2 This is a rear-view stereoscopic view of the structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of the present invention.

[0019] Figure 4 This is a top-view cross-sectional structural diagram of the present invention.

[0020] Figure 5 This is a schematic diagram of the front cross-sectional structure of the present invention.

[0021] Figure 6 This is a schematic diagram of the rear cross-sectional structure of the present invention.

[0022] Figure 7 For the present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0023] Figure 8 For the present invention Figure 4 Enlarged structural diagram at point B.

[0024] Figure 9 For the present invention Figure 5 Enlarged structural diagram at point C.

[0025] Figure 10 For the present invention Figure 6 Enlarged structural diagram at point D.

[0026] In the diagram: 1. Workbench; 2. Water circulation filtration mechanism; 3. Water storage tank; 301. Strip electromagnet; 302. Guide slope; 4. Support frame; 401. Outlet groove; 5. Mounting shaft; 6. High-precision screw drive mechanism; 7. Main control console; 8. Feed pipe; 9. Hollow hoop; 10. Sub-controller; 11. Hydraulic box; 12. Alignment cone; 13. Feed plate; 14. Movable telescopic rod; 1401. Inclined telescopic column; 15. Electrically controlled telescopic rod; 16. Sliding mechanism; 17. Moving seat; 1701. Rotary bending plasma cutting assembly nozzle; 18. Fan-shaped electromagnet; 19. Hydraulic pipe; 20. Hydraulic telescopic rod; 21. Wear-resistant rubber cone; 22. Electrically controlled telescopic column; 23. Sealed piston; 24. C-shaped multi-head connecting pipe. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-10This invention provides a technical solution: a multi-station plasma cutting and beveling equipment for steel pipes, including a worktable 1. Two support frames 4 are fixedly installed on the top of the worktable 1. Mounting shafts 5 are rotatably mounted on opposite sides of the tops of the two support frames 4 via bearings. Several feeding pipes 8 are embedded and fixedly installed on one side of the mounting shafts 5. Several electrically controlled telescopic rods 15 are hinged to the bottom of the feeding pipes 8 via brackets. A sliding mechanism 16 is hinged to the bottom end of each electrically controlled telescopic rod 15. Several hollow clamps 9 are fixedly sleeved on the outer side of the feeding pipes 8. Several hydraulic telescopic rods 20 are sleeved inside the hollow clamps 9. A sector-shaped electromagnet 18 is fixedly installed at the output end of each hydraulic telescopic rod 20. Wear-resistant rubber cones 21 are fixedly installed at both the top and bottom ends of the sector-shaped electromagnet 18. A U-shaped multi-head connecting pipe 24 is connected to the outer side of the hollow clamps 9. The input end of 4 is connected to a hydraulic pipe 19, and the other end of the hydraulic pipe 19 is connected to a hydraulic box 11. A sealing piston 23 is movably sleeved inside the hydraulic box 11. An electrically controlled telescopic column 22 is fixedly installed at the bottom of the sealing piston 23. A sub-controller 10 is fixedly installed on the outside of the feed pipe 8. An alignment cone 12 is fixedly installed at the top of the feed pipe 8. A high-precision screw drive mechanism 6 is driven on the opposite side of the two support frames 4. A moving seat 17 is driven on the moving part of the high-precision screw drive mechanism 6. A rotary bending plasma cutting assembly nozzle 1701 is rotatably installed at the bottom of the moving seat 17. A water storage tank 3 is fixedly installed on the top of the worktable 1. Several strip electromagnets 301 are embedded in the bottom of the water storage tank 3. A guide slope 302 is installed on one side of the strip electromagnets 301. A water circulation filter mechanism 2 is connected inside the water storage tank 3.

[0029] The working principle of the above technical solution is as follows: During use, the steel pipe rod or body to be processed is inserted into the inner side of the feeding pipe 8. At this time, the extension and retraction of the electrically controlled telescopic column 22 is adjusted according to the diameter of the steel pipe rod or body, causing the sealing piston 23 to shift. This displacement is then achieved by the hydraulic oil in the hydraulic pipe 19 and the C-shaped multi-head connecting pipe 24, pushing the hydraulic telescopic rods 20 inside the multiple hollow clamps 9 to extend, causing the fan-shaped electromagnets 18 to adhere to the outer side of the pipe body. Then, specific points of the multiple fan-shaped electromagnets 18 are activated, creating an adsorption and fixing effect on the processed steel pipe. Next, the electrically controlled telescopic rod 15 is activated, causing the feeding pipe 8 to tilt and immerse itself in the inner side of the water storage tank 3. Then, the high-precision screw drive mechanism 6 moves, driving the moving seat 17 and the rotary bending plasma cutting assembly nozzle 1701 to move. After the installation angle of the rotary bending plasma cutting assembly nozzle 1701 relative to the moving seat 17 is set, the movement causes the plasma cutting of the rotary bending plasma cutting assembly nozzle 1701 to cut the steel pipe. In the cutting operation, the steel pipe inside the feed pipe 8 is cut and falls into the water storage tank 3. At this time, the bar electromagnet 301 generates a linear circulating electromagnetic path to gradually attract the cut steel pipe material and move it to the guide slope 302. Finally, it is discharged into the collection area through the slope of the water storage tank 3 and the opening of the discharge channel 401. The cutting of the lightweight steel pipe inside the feed pipe 8 is completed. At this time, multiple sets of fan-shaped electromagnets 18 generate corresponding electromagnetic effects and use electromagnetic repulsion and electromagnetic force strength control to cause the steel pipe to be gradually pushed out or ejected from the feed pipe 8. Then, the next operation process is carried out through the feeding mechanism. The overall operation is convenient, the loading and unloading are stable and highly intelligent, and it is convenient to cooperate with multi-station operations. For example, multiple moving seats 17 and rotary bending plasma cutting assembly nozzles 1701 are added to be adapted to the feed pipe 8 to perform reciprocating movement, which cooperates with the steel pipe inside the feed pipe 8 to perform cyclic feeding, cutting and unloading operations, indirectly improving efficiency.

[0030] In another implementation scheme, such as Figures 1-6 As shown, the feed pipes 8 are linearly and evenly distributed on the outside of the mounting shaft 5.

[0031] The number of feed tubes 8 determines the number of processing operations for steel pipe rods and pipe bodies, and undertakes the effect of multi-station operation. The function of the feed plate 13 is to support the heavier steel rods and to carry out transmission after multi-station synchronous cutting operations.

[0032] In another implementation scheme, such as Figures 1-6 As shown, flanges are provided at both ends of the mounting shaft 5, and the support frame 4 has matching bolt holes at the corresponding positions of the flanges. The track of the sliding mechanism 16 is fixedly installed on the top of the workbench 1, and the electrically controlled telescopic rod 15 is linearly and evenly distributed at the bottom of the feed pipe 8.

[0033] The flange for mounting shaft 5 is used to support and position the mounting shaft 5 by inserting bolt pins when not in use or when needed, reducing structural damage. The multi-point setting of the electrically controlled telescopic rod 15 is beneficial for supporting the feed pipe 8, ensuring structural stability, and using the structure to adjust the rotation position of the mounting shaft 5 to adjust the tilt position of the feed pipe 8.

[0034] In another implementation scheme, such as Figures 1-10 As shown, the hollow hoop 9 is linearly and evenly distributed on the outside of the feed tube 8, the hydraulic telescopic rod 20 is circumferentially and evenly distributed inside the hollow hoop 9, the hydraulic telescopic rod 20 is fixedly inserted through the hollow hoop 9 and extends movably into the inside of the feed tube 8, and the fan-shaped electromagnet 18 is circumferentially and evenly distributed inside the feed tube 8.

[0035] The hollow clamp 9 serves as a hydraulic chamber, equalizing the pressure of the hydraulic fluid introduced through the hydraulic pipe 19 and the C-shaped multi-head connecting pipe 24, thereby causing the hydraulic telescopic rod 20 to extend and retract synchronously. This, in turn, drives the fan-shaped electromagnet 18 to reduce and expand its diameter, thus facilitating the clamping operation of steel pipes of different diameters. The fan-shaped electromagnets 18 are arranged in a circumferential distribution and are designed in a fan shape for easy opening and closing and splicing into a circle, providing outer circumference support for the steel pipe. The multiple circumferential distributions of the fan-shaped electromagnets 18 can be arranged in odd or even numbers, specifically in the form of opposite poles. By combining the shape with the arrangement of electromagnetic coils and moving iron cores, a strong electromagnetic thrust is generated instantly when energized, directly pushing the steel pipe laterally from the support position and springing it away from the processing position. Alternatively, two electromagnets with opposite poles can be used, generating a repulsive force when energized, achieving the effect of translating and ejecting the pipe. Furthermore, multiple sector electromagnets 18 are individually controlled by a separate controller 10. Each sector electromagnet 18 can achieve commutation and start / stop effects, facilitating control. Even after power failure, a weak residual magnetism remains, which may cause small tubes to stick and not fully eject. A simple demagnetizing circuit is required for instantaneous reverse demagnetization, ensuring a clean ejection. It features millisecond-level attraction and release, matching the multi-station cycle of plasma cutting. There is no mechanical jamming or cylinder leakage. It is resistant to high temperatures and cutting fumes and water mist, and does not collide with steel pipes, tube bodies, or beveled ends, preventing extrusion deformation. By adjusting the excitation current, the attraction force and ejection force can be controlled, adapting to different pipe diameters and wall thicknesses. It is also easily linked to CNC systems: directly connected to the cutting machine system, it automatically triggers ejection upon completion of processing without manual intervention. However, it is only suitable for ferromagnetic tubes. Carbon steel and low-alloy steel pipes are not ferromagnetic; stainless steel is not ferromagnetic and the electromagnet cannot attract them, making it unusable.

[0036] In another implementation scheme, such as Figures 1-10 As shown, the end of the wear-resistant rubber cone 21 away from the fan-shaped electromagnet 18 is fixedly installed on the inner wall of the feed pipe 8, and the wear-resistant rubber cone 21 is conical fan-shaped, with a low-friction coating on the outer side of the wear-resistant rubber cone 21.

[0037] The wear-resistant rubber cone 21, with its conical shape, works in conjunction with the fan-shaped electromagnet 18 to form a circumferential limit. Utilizing its own elasticity, it undergoes stable deformation as the fan-shaped electromagnet 18 moves, thereby changing the taper and guiding and limiting the steel pipe. This allows the steel pipe to be inserted smoothly. The low-friction coating reduces damage to the steel pipe and facilitates smooth flow and limiting, increasing ease of use and indirectly improving efficiency.

[0038] In another implementation scheme, such as Figures 1-10 As shown, the electrically controlled telescopic column 22 is fixedly installed inside the hydraulic box 11. The hydraulic box 11 is fixedly installed on the outside of the mounting shaft 5 by a bracket. Hydraulic oil is provided inside the hydraulic box 11, the hydraulic pipe 19 and the hollow hoop 9, and the input end of the hydraulic telescopic rod 20 is connected to the inside of the hollow hoop 9.

[0039] When the electrically controlled telescopic column 22 extends, it causes the sealed piston 23 to shift, and the hydraulic oil in the hydraulic pipe 19 and the C-shaped multi-head connecting pipe 24 pushes the hydraulic telescopic rods 20 inside the multiple hollow clamps 9 to extend, causing the sector electromagnet 18 to fit against the outside of the pipe body, which facilitates control through the transmission of hydraulic equivalent action. The hydraulic oil enters the hydraulic pipe 19 and the C-shaped multi-head connecting pipe 24 through the hydraulic box 11, and finally outputs the hydraulic telescopic rods 20 inside the hollow clamps 9, thereby controlling the relatively stable output of the hydraulic telescopic rods 20 and increasing the usability of the structure.

[0040] In another implementation scheme, such as Figures 1-6 As shown, bar electromagnets 301 are linearly and uniformly distributed inside the bottom of the water storage tank 3, and the distribution shape is adapted to the shape of the water storage tank 3. The water storage tank 3 is located on the opposite side of the support frame 4. One of the two support frames 4 is provided with a discharge groove 401 inside. The specifications and dimensions of the guide slope 302 are adapted to the specifications and dimensions of the discharge groove 401.

[0041] After the steel pipe is cut, it falls inside the water storage tank 3. At this time, multiple linearly distributed bar electromagnets 301 generate a linear circulating electromagnetic path, which gradually attracts and guides the cut steel pipe material, and moves the steel pipe material to the guide slope 302 position. Finally, it is discharged into the collection area through the slope of the water storage tank 3 and the opening of the discharge channel 401.

[0042] In another implementation scheme, such as Figures 1-6 As shown, the water circulation filter mechanism 2 is fixedly installed on the inner side of the bottom of the workbench 1 by a bracket. The input and output ends of the water circulation filter mechanism 2 are connected to the diagonal positions of the water storage tank 3 by pipes.

[0043] The water circulation filtration mechanism 2 is a water flow filtration structure in the prior art. It uses the circulation of water pump to filter the water flow, reduce the dust particles in the water, ensure the cleanliness of the water flow, and contribute to environmental protection.

[0044] In another implementation scheme, such as Figures 1-6 As shown, several movable telescopic rods 14 are slidably installed on one side of the top of the workbench 1. The top of the movable telescopic rods 14 is hinged to a feeding plate 13. One side of the bottom of the feeding plate 13 is hinged to an inclined telescopic column 1401. The other end of the inclined telescopic column 1401 is hinged to the outside of the water storage tank 3. The position and number of the feeding plates 13 correspond to the position and number of the feeding pipes 8.

[0045] The telescopic movement of the movable telescopic rod 14, combined with the telescopic movement of the tilting telescopic column 1401, allows the platform of the unloading plate 13 to tilt and guide the flow. The function of the unloading plate 13 is that when unloading heavier steel rods, the retraction of the electrically controlled telescopic rod 15 causes the multiple rows of unloading pipes 8 to be placed horizontally on the unloading plate 13 for alignment. At this time, the sector electromagnet 18 gradually pushes the steel rod to move through electromagnetic action, and guides it to the unloading equipment collection area through the unloading plate 13, thereby adapting to multi-station synchronous operation and unloading, and facilitating the coordination of unloading and loading operations.

[0046] In another implementation scheme, such as Figures 1-6 As shown, a main control console 7 is fixedly installed on the top of the workbench 1, and the input terminal of the sub-controller 10 is electrically connected to the output terminal of the main control console 7 through wires.

[0047] The main control console 7 features a hardware structure that includes an industrial PLC controller, an industrial touch screen, a communication module, a dedicated electromagnetic ejection hardware module, essential hardware modules for plasma cutting control, and essential hardware modules for telescopic column control. It also has a sensor expansion structure that can adapt to general-purpose sensing and detection hardware, including inductive proximity switches, photoelectric switches, mechanical travel limit switches, temperature sensors, encoders, and related control of a 24V DC switching power supply. It has a built-in intelligent control system with its own DI / DO and expandable analog modules, responsible for all logic interlocks, including plasma start / stop, torch movement, telescopic column lifting, electromagnetic engagement / ejection, hydraulic valve group reversing, and pressure interlock protection. The system allows for setting parameters such as cutting speed, telescopic column stroke, magnetic force strength, hydraulic pressure threshold, manual / automatic mode switching, fault alarm display, and communication with the PLC, touch screen, servo driver, and plasma power supply via 485 / Ethernet for synchronized operation. The control of the rotary bending plasma cutting assembly nozzle 1701 is handled by the CNC plasma power supply unit, including an automatic arc voltage height adjuster, servo motor + servo driver, arc voltage acquisition module, torch circulating water cooler, plasma start / stop control relay, and air pressure detection switch. The sub-controller 10 includes an electromagnetic rectifier controller and an instantaneous demagnetization module. The system incorporates electromagnetic intelligent control components such as DC intermediate relays / AC contactors and proximity switches for position detection, enabling the equipment to perform intelligent control and operation. The control terminal of the sub-controller 10 is electrically connected to the input terminal of the sector electromagnet 18 via a guide. The control output terminal of the main control console 7 is electrically connected to the input terminals of the water circulation filter mechanism 2, the bar electromagnet 301, the high-precision screw drive mechanism 6, the sub-controller 10, the movable telescopic rod 14, the tilt telescopic column 1401, the electrically controlled telescopic rod 15, the rotary bending plasma cutting assembly nozzle 1701, and the electrically controlled telescopic column 22 via wires.

[0048] 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-station plasma cutting and beveling equipment for steel pipe rods, comprising a worktable (1), characterized in that: Two support frames (4) are fixedly installed on the top of the workbench (1). The top of the two support frames (4) is rotatably mounted on the opposite side of the top of the two support frames (4) via bearings. Several feed tubes (8) are embedded and fixedly installed on one side of the mounting shaft (5). Several electrically controlled telescopic rods (15) are hinged to the bottom of the feed tubes (8) via brackets. A sliding mechanism (16) is hinged to the bottom end of the electrically controlled telescopic rods (15). Several hollow hoops (9) are fixedly sleeved on the outside of the feed tubes (8). Several hydraulic telescopic rods (20) are sleeved inside the hollow hoops (9). A fan-shaped electromagnet (18) is fixedly installed at the output end of the hydraulic telescopic rod (20). A wear-resistant rubber cone (21) is fixedly installed at the top and bottom ends of the fan-shaped electromagnet (18). A C-shaped multi-head connecting pipe (24) is connected to the outside of the hollow hoops (9). A hydraulic pipe (19) is connected to the input end of the C-shaped multi-head connecting pipe (24). One end is connected to a hydraulic box (11), and a sealing piston (23) is movably sleeved inside the hydraulic box (11). An electrically controlled telescopic column (22) is fixedly installed at the bottom of the sealing piston (23). A sub-controller (10) is fixedly installed on the outside of the feed pipe (8). An alignment cone (12) is fixedly installed at the top of the feed pipe (8). A high-precision screw drive mechanism (6) is driven on the opposite sides of the two support frames (4). A moving seat (17) is driven on the moving part of the high-precision screw drive mechanism (6). A rotary bending plasma cutting assembly nozzle (1701) is rotatably installed at the bottom of the moving seat (17). A water storage tank (3) is fixedly installed on the top of the workbench (1). Several strip electromagnets (301) are embedded in the bottom of the water storage tank (3). A guide slope (302) is installed on one side of the strip electromagnets (301). A water circulation filter mechanism (2) is connected inside the water storage tank (3).

2. The multi-station plasma cutting and beveling equipment for steel pipe rods and bodies according to claim 1, characterized in that: The feed tubes (8) are linearly and evenly distributed on the outside of the mounting shaft (5).

3. The multi-station plasma cutting and beveling equipment for steel pipe rods and bodies according to claim 1, characterized in that: Both ends of the mounting shaft (5) are provided with flanges, and the support frame (4) is provided with matching bolt holes at the corresponding positions of the flanges. The track of the sliding mechanism (16) is fixedly installed on the top of the workbench (1), and the electrically controlled telescopic rod (15) is linearly and evenly distributed at the bottom of the feed pipe (8).

4. The multi-station plasma cutting and beveling equipment for steel pipe rods and bodies according to claim 1, characterized in that: The hollow hoop (9) is linearly and evenly distributed on the outside of the feed tube (8), the hydraulic telescopic rod (20) is circumferentially and evenly distributed inside the hollow hoop (9), the hydraulic telescopic rod (20) is fixedly inserted through the hollow hoop (9) and extends movably into the inside of the feed tube (8), and the fan-shaped electromagnet (18) is circumferentially and evenly distributed inside the feed tube (8).

5. The multi-station plasma cutting and beveling equipment for steel pipe rods and bodies according to claim 1, characterized in that: The wear-resistant rubber cone (21) is fixedly installed on the inner wall of the feed pipe (8) at the end away from the fan-shaped electromagnet (18), and the wear-resistant rubber cone (21) is a conical fan shape. The outer side of the wear-resistant rubber cone (21) is coated with a low-friction coating.

6. The multi-station plasma cutting and beveling equipment for steel pipe rods and bodies according to claim 1, characterized in that: The electrically controlled telescopic column (22) is fixedly installed inside the hydraulic box (11). The hydraulic box (11) is fixedly installed on the outside of the mounting shaft (5) by a bracket. The hydraulic box (11), hydraulic pipe (19) and hollow hoop (9) are filled with hydraulic oil, and the input end of the hydraulic telescopic rod (20) is connected to the inside of the hollow hoop (9).

7. The multi-station plasma cutting and beveling equipment for steel pipe rods and bodies according to claim 1, characterized in that: The bar electromagnets (301) are linearly and uniformly distributed inside the bottom of the water storage tank (3), and the distribution shape is adapted to the shape of the water storage tank (3). The water storage tank (3) is located on the opposite side of the support frame (4). One of the two support frames (4) is provided with a discharge groove (401). The specifications and dimensions of the guide slope (302) are adapted to the specifications and dimensions of the discharge groove (401).

8. The multi-station plasma cutting and beveling equipment for steel pipe rods and bodies according to claim 1, characterized in that: The water circulation filtration mechanism (2) is fixedly installed on the inner side of the bottom of the workbench (1) by a bracket. The input and output ends of the water circulation filtration mechanism (2) are connected to the diagonal position of the water storage tank (3) by pipes respectively.

9. The multi-station plasma cutting and beveling equipment for steel pipe rods and bodies according to claim 1, characterized in that: Several movable telescopic rods (14) are slidably installed on one side of the top of the workbench (1). A feeding plate (13) is hinged to the top of the movable telescopic rod (14). An inclined telescopic column (1401) is hinged to one side of the bottom of the feeding plate (13). The other end of the inclined telescopic column (1401) is hinged to the outside of the water storage tank (3). The position and number of the feeding plate (13) correspond to the position and number of the feeding pipe (8).

10. The multi-station plasma cutting and beveling equipment for steel pipe rods and bodies according to claim 1, characterized in that: The main control console (7) is fixedly installed on the top of the workbench (1), and the input terminal of the sub-controller (10) is electrically connected to the output terminal of the main control console (7) through a wire.

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