Bending and cutting device and method based on steel pipe machining

Abstract

The invention relates to the technical field of intelligent manufacturing equipment, and particularly discloses a bending and cutting device and method based on steel pipe machining, the bending and cutting device comprises a machining tool, and a rotary feeding unit is arranged on the right side of the top of the machining tool. According to the rotary feeding unit, the position and height of a feeding frame can be flexibly adjusted through cooperation of a feeding adjusting linear sliding table, an adjusting sliding block and an electric push rod, precise adjustment of the feeding direction and angle of a steel pipe is achieved in combination with precise control of a positioning plate, a limiting block and a driving motor, and a foundation is laid for subsequent machining; the linkage design of a rotating table and a bending frame in the bending unit is matched with a bending limiting frame driven by a second servo electric cylinder, and steel pipes of different specifications can be accurately bent at any angle. The cutting unit is positioned through a horizontal adjusting linear sliding table, a driving motor drives a laser device to rotate and conduct annular cutting, the cutting environment is optimized through auxiliary gas and a waste chip collecting system, high cutting precision and high cutting quality are guaranteed, and the overall machining efficiency and precision are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent manufacturing equipment, and in particular to a bending and cutting device and method based on steel pipe processing. Background Art

[0002] In the steel pipe processing industry, traditional bending and cutting devices generally have problems such as single function and insufficient processing accuracy.

[0003] Existing steel pipe feeding mechanisms are mostly fixed structures, which make it difficult to flexibly adjust the feeding direction and angle, and cannot meet diverse processing needs; the preheating unit usually adopts a single specification design, which lacks adaptability to the preheating treatment of steel pipes of different diameters, resulting in poor preheating effect and affecting the quality of subsequent bending processing; at the same time, during the bending process, ordinary devices cannot provide effective support for the inside of the steel pipe, and the steel pipe is prone to local deformation, wrinkles and other defects; the cutting method of the cutting unit is also relatively backward, with low cutting accuracy and difficult to clean up the waste chips generated, which not only reduces the processing efficiency, but also affects the surface quality and processing accuracy of the steel pipe. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a bending and cutting device and method based on steel pipe processing, in order to solve the technical defects mentioned above.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a bending and cutting device based on steel pipe processing, comprising: a processing machine tool, a rotary feeding unit is provided on the right side of the top of the processing machine tool, and the rotary feeding unit is used to control the feeding orientation of the steel pipe and the bending angle of the steel pipe; a lifting servo linear slide is fixedly provided on the front and rear sides of the inner wall of the processing machine tool, and a height adjustment frame is slidingly provided between the two lifting servo linear slides, a workpiece preheating unit is provided on one side of the top of the height adjustment frame, and a bending unit is provided on the other side of the top of the height adjustment frame, The machine tool preheats the steel pipe to be processed, so that it is convenient for the subsequent bending unit to bend the steel pipe at any angle; a movable groove is provided on the top of the processing machine tool and between the workpiece preheating unit and the bending unit, and horizontal adjustment linear slides are fixedly provided on both sides of the inner wall of the movable groove, and a cutting unit is slidably provided between the two horizontal adjustment linear slides, and the cutting unit is used to automatically perform circular cutting on the steel pipe; a bending auxiliary unit is also provided on the side of the processing machine tool close to the bending unit, and the bending auxiliary unit is used to automatically feed the memory alloy component into the interior of the steel pipe.

[0006] Furthermore, the rotary feeding unit includes a feeding rack, a feeding adjustment linear slide is fixedly provided on one side of the top of the processing machine tool, and an adjusting slider is slidingly provided on the top of the feeding adjustment linear slide, a lifting plate is movably provided on the top of the adjusting slider, and the lifting plate moves up and down through the electric push rod built into the adjusting slider, a feeding rack is fixedly provided on the top of the lifting plate, a rotating rack 1 is rotatably provided inside the feeding rack, and a number of fixed blocks are fixed inside the rotating rack 1.

[0007] Furthermore, several of the fixed blocks are arranged at equal angles about the central axis of the rotating frame, and micro electric cylinders are fixedly installed inside the several fixed blocks. A positioning plate and a limit block are movably provided on one side of two adjacent fixed blocks, and one side of the positioning plate and the limit block are fixedly connected to the driving ends of the two micro electric cylinders respectively.

[0008] Furthermore, a driving motor 1 is fixedly provided on one side of the feeding rack, and a driving gear 1 is fixedly provided on one end of the output shaft of the driving motor 1. An annular tooth groove 1 is provided on the outer peripheral surface of the rotating rack 1, and the tooth surface of the driving gear 1 is meshed with the tooth surface of the annular tooth groove 1 for transmission.

[0009] Furthermore, the workpiece preheating unit includes a fixed preheating frame and a movable preheating frame, two support frames are fixedly provided on one side of the top of the height adjustment frame, and three fixed preheating frames and three mounting frames are fixedly provided on the top of the two support frames respectively, the three fixed preheating frames are stacked on the top of the rear support frame, the three mounting frames are stacked on the top of the front support frame, and a servo electric cylinder 1 is fixedly provided inside the three mounting frames, and a movable preheating frame is fixedly provided on the driving end of the three servo electric cylinders, and an arc groove is provided on the opposite side of the three fixed preheating frames and the three movable preheating frames, wherein an electric heating plate is provided on one side of the inner wall of the arc groove.

[0010] Furthermore, the bending unit includes a bending frame and a bending limit frame, a rotating table is rotatably arranged on one side of the top of the height adjustment frame, and three bending frames are fixedly arranged on the top of the rotating table, the three bending frames are stacked on the top of the rotating table, and a connecting shaft is fixedly arranged inside the three bending frames, a rotating servo motor is fixedly arranged at the bottom of the height adjustment frame, and the top end of the output shaft of the rotating servo motor is fixedly connected to the bottom end of the rotating table.

[0011] Furthermore, a connecting frame is fixedly provided on one side of the rotating table, and three mounting frames 2 are fixedly provided on the top of the connecting frame, servo electric cylinders 2 are fixedly provided inside the three mounting frames 2, and bending limit frames are fixedly provided on the driving ends of the three servo electric cylinders 2, and bending grooves are provided on one side of the three bending limit frames and the outer peripheral surfaces of the three bending frames.

[0012] Furthermore, the cutting unit includes a cutting frame, which is slidingly arranged inside the movable groove, and the two sides of the cutting frame are slidably connected to the opposite sides of the two horizontally adjustable linear slides, the top of the cutting frame is fixed with a movable top plate by bolts, and a cutting chamber is provided inside the cutting frame, and a rotating frame 2 is rotatably arranged in the middle of the cutting chamber, and a laser is fixedly arranged inside the rotating frame 2, and an annular tooth groove 2 is provided on the outer peripheral surface of the rotating frame 2, and a driving motor 2 is also fixedly arranged on one side of the cutting frame, and a driving gear 2 that meshes with the teeth of the annular tooth groove 2 is fixedly provided on one end of the output shaft of the driving motor 2; cutting auxiliary rings are fixedly arranged on both sides of the cutting chamber, and the inner wall and side wall of the cutting auxiliary ring are respectively provided with an air blowing port and a material suction port, a waste chip collection box and a material extraction pump are fixedly provided on the rear side of the processing machine tool, and an auxiliary gas box and an air guide pump are fixedly provided on the front side of the processing machine tool.

[0013] Furthermore, the bending auxiliary unit includes an electric clamp, and a lifting drive frame is fixedly provided on the front and rear sides of one side of the processing machine tool, and a lifting frame is slidably provided between the two lifting drive frames through an electric control slide, and a feeding slide rail is fixedly provided on the top of the lifting frame, and two feeding slide blocks are slidably provided on the top of the feeding slide rail, and electric clamps are fixedly provided on the top of the two feeding slide blocks, and rubber pads are provided on the inner walls of the two electric clamps.

[0014] Furthermore, a bending and cutting method based on steel pipe processing is characterized by comprising the following steps:

[0015] Step 1: Adjust the position and height of the feed rack by rotating the feed unit, and use the positioning plate, limit block and drive motor 1 to complete the steel pipe feeding positioning and rotation control;

[0016] Step 2: Adjust the height adjustment frame with the lifting servo linear slide according to the size of the steel pipe, select the appropriate fixed preheating frame and movable preheating frame, cover the steel pipe and heat it;

[0017] Step 3: The electric gripper stretches the memory alloy component and then inserts it into the steel pipe, which is then expanded by preheating to support the inside of the steel pipe;

[0018] Step 4: Send the preheated steel pipe to the bending unit, clamp the bending limit frame and the bending frame, and rotate the servo motor to drive the steel pipe to bend;

[0019] Step 5: Horizontally adjust the linear slide to position the cutting frame, and drive motor 2 to drive the laser to perform circular cutting, while assisting with gas protection and chip removal.

[0020] The beneficial effects achieved by the present invention using the above structure are as follows:

[0021] 1. The rotary feeding unit in the present invention can flexibly adjust the position and height of the feeding rack through the feeding adjustment linear slide, the adjustment slider and the electric push rod. Combined with the precise control of the positioning plate, the limit block and the driving motor, the precise adjustment of the feeding direction and angle of the steel pipe can be achieved, laying the foundation for subsequent processing; the linkage design of the rotating table and the bending rack in the bending unit, combined with the bending limit rack driven by the servo electric cylinder, can achieve precise bending of steel pipes of different specifications at any angle; the cutting unit uses the horizontal adjustment linear slide for positioning, and the driving motor drives the laser to rotate and cut in a circular motion, and optimizes the cutting environment through the auxiliary gas and waste collection system to ensure high-precision and high-quality cutting, and significantly improve the overall processing efficiency and accuracy.

[0022] 2. The workpiece preheating unit of the present invention adopts a combination of a fixed preheating frame and a movable preheating frame. The gradient design of the arc groove diameter enables it to adapt to steel pipes of different specifications. The movable preheating frame is driven by a servo electric cylinder to achieve flexible adjustment. Combined with the lifting function of the height adjustment frame, accurate and efficient preheating is ensured. The bending auxiliary unit automatically feeds in the memory alloy component and uses the preheating process to expand and support the inside of the steel pipe, adaptively resisting deformation, enhancing the adaptability of the device to complex processing scenarios, and effectively improving the processing quality under different working conditions.

[0023] 3. The various functional units in this invention work closely together and collaboratively, forming an integrated automated process from steel pipe loading and positioning, preheating, feeding of memory alloy components, to bending and cutting. The feeding unit provides a precise foundation for preheating and bending, the preheating unit creates optimal conditions for bending, the bending assist unit enhances the bending effect, and the cutting unit completes the final processing. The linkage between these units not only reduces manual intervention but also improves the consistency and stability of the processing, achieving intelligent and efficient production of steel pipe processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of a bending and cutting device structure based on steel pipe processing according to an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of a processing machine tool and a feed rack structure according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of a structure of a feed adjustment linear slide, a lifting plate and a rotating frame according to an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of a structure of a feed rack and a rotating rack according to an embodiment of the present invention;

[0029] Figure 5 Schematic diagram of the fixed preheating rack and the movable preheating rack structure according to an embodiment of the present invention;

[0030] Figure 6 Schematic diagram of the feeding slider and electric clamping claw structure according to an embodiment of the present invention;

[0031] Figure 7 Schematic diagram of the cutting frame and the rotating frame according to an embodiment of the present invention.

[0032] In the figure, 1. processing machine tool; 2. rotary feed unit; 3. workpiece preheating unit; 4. cutting unit; 5. bending unit; 6. bending auxiliary unit; 7. feed adjustment linear slide; 8. adjustment slide; 9. lifting plate; 10. feed rack; 11. rotating rack 1; 12. fixed block; 13. micro electric cylinder; 14. positioning plate; 15. limit block; 16. driving gear 1; 17. driving motor 1; 18. annular gear groove 1; 19. lifting servo linear slide; 20. height adjustment rack; 21. support rack; 22. fixed preheating rack; 23. mounting rack 1; 24. servo electric cylinder 1; 25. movable preheating rack; 26. rotating table; 27 , bending frame; 28, connecting frame; 29, mounting frame 2; 30, servo electric cylinder 2; 31, bending limit frame; 32, rotating servo motor; 33, connecting shaft; 34, movable slot; 35, horizontal adjustment linear slide; 36, cutting frame; 37, movable top plate; 38, cutting chamber; 39, rotating frame 2; 40, driving gear 2; 41, driving motor 2; 42, annular gear groove 2; 43, laser; 44, cutting auxiliary ring; 45, auxiliary gas box; 46, air pump; 47, waste chip collection box; 48, suction pump; 49, lifting drive frame; 51, lifting frame; 52, feeding slide rail; 53, feeding slider; 54, electric clamp. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0035] Example 1

[0036] See also Figures 1 to 7 As shown, a bending and cutting device based on steel pipe processing includes: a processing machine tool 1, a rotary feeding unit 2 is provided on the right side of the top of the processing machine tool 1, and the rotary feeding unit 2 is used to control the feeding direction of the steel pipe and the bending angle of the steel pipe; a lifting servo linear slide 19 is fixedly provided on the front and rear sides of the inner wall of the processing machine tool 1, and a height adjustment frame 20 is slidingly provided between the two lifting servo linear slides 19, a workpiece preheating unit 3 is provided on one side of the top of the height adjustment frame 20, and a bending unit 5 is provided on the other side of the top of the height adjustment frame 20, and the steel pipe to be processed is preheated by the workpiece preheating unit 3, so that the steel pipe can be arbitrarily bent by the bending unit 5 later. Angle bending processing; a movable groove 34 is also provided on the top of the processing machine tool 1 and between the workpiece preheating unit 3 and the bending unit 5, and horizontal adjustment linear slides 35 are fixedly provided on both sides of the inner wall of the movable groove 34, and a cutting unit 4 is slidably provided between the two horizontal adjustment linear slides 35, and the cutting unit 4 is used for automatic ring cutting processing on the steel pipe; a bending auxiliary unit 6 is also provided on the side of the processing machine tool 1 close to the bending unit 5, and the bending auxiliary unit 6 is used for automatically feeding the memory alloy component into the interior of the steel pipe, and is used to adaptively adjust the supporting force according to the deformation of various parts of the steel pipe to resist deformation and ensure the bending accuracy and surface quality of the steel pipe.

[0037] As a further explanation of the scheme of this embodiment, the rotary feeding unit 2 includes a feeding rack 10, a feeding adjustment linear slide 7 is fixedly provided on one side of the top of the processing machine tool 1, and an adjusting slider 8 is slidingly provided on the top of the feeding adjustment linear slide 7, a lifting plate 9 is movably provided on the top of the adjusting slider 8, and the lifting plate 9 moves up and down through the electric push rod built into the adjusting slider 8, a feeding rack 10 is fixedly provided on the top of the lifting plate 9, a rotating rack 11 is provided inside the feeding rack 10, and a plurality of rotating racks 11 are fixedly provided inside the rotating rack 11. A plurality of fixed blocks 12 are arranged at equal angles about the central axis of the rotating frame 11, and a micro-electric cylinder 13 is fixedly arranged inside each of the fixed blocks 12. A positioning plate 14 and a limit block 15 are movably arranged on one side of two adjacent fixed blocks 12, and one side of the positioning plate 14 and the limit block 15 are fixedly connected to the driving ends of the two micro-electric cylinders 13 respectively; wherein, a plurality of balls are rotatably arranged on one side of the positioning plate 14, and when the steel pipe is fed and positioned, the driving end of the micro-electric cylinder 13 is controlled The positioning plate 14 approaches the surface of the steel pipe, and the ball on one side of the positioning plate 14 is close to the surface of the steel pipe, thereby achieving the feeding positioning of the steel pipe and ensuring the smoothness of the steel pipe in the feeding process; a rubber pad is fixedly provided on one side of the limit block 15. When the steel pipe is controlled to rotate, a plurality of limit blocks 15 are selected to contact the surface of the steel pipe to realize the position limitation of the steel pipe inside the rotating frame 11, and then the rotating frame 11 is controlled to rotate, thereby driving the steel pipe to rotate synchronously; a rubber pad is fixed on one side of the feeding frame 10. A driving motor 17 is fixedly provided, and a driving gear 16 is fixedly provided at one end of the output shaft of the driving motor 17. An annular tooth groove 18 is provided on the outer peripheral surface of the rotating frame 11, and the tooth surface of the driving gear 16 is meshed with the tooth surface of the annular tooth groove 18 for transmission; the driving gear 16 is controlled to rotate by the output shaft of the driving motor 17, and the meshing transmission of the tooth surface of the driving gear 16 and the tooth surface of the annular tooth groove 18 is combined to realize the rotation control of the rotating frame 11 inside the feeding frame 10.

[0038] It should be noted that the structural design of the rotary feeding unit 2 significantly improves the efficiency and accuracy of steel pipe feeding and processing through the coordinated operation of various components. The feed adjustment linear slide 7 cooperates with the adjustment slider 8 to flexibly adjust the position of the feed rack 10 on the processing machine 1 to meet different processing requirements; the lifting plate 9 is moved up and down by the built-in electric push rod of the adjustment slider 8, which is convenient for adapting to the height position of steel pipes of different specifications; the rotating frame 11 inside the feed rack 10 cooperates with the fixed block 12, the micro electric cylinder 13, the positioning plate 14 and the limit Block 15 can accurately position and control the feeding of steel pipes. The ball on one side of the positioning plate 14 reduces the friction of the steel pipe feeding while ensuring the smoothness of the feeding. The rubber pad on one side of the limit block 15 effectively limits the position of the steel pipe and avoids surface damage. The meshing transmission of the drive motor 17, the drive gear 16 and the annular tooth groove 18 on the outer peripheral surface of the rotating frame 11 provides stable power for the rotation of the rotating frame 11, realizes the synchronous rotation of the steel pipe, and provides a stable and efficient feeding basis for subsequent bending and cutting processing.

[0039] As a further explanation of the scheme of this embodiment, the workpiece preheating unit 3 includes a fixed preheating frame 22 and a movable preheating frame 25. Two support frames 21 are fixedly provided on one side of the top of the height adjustment frame 20, and three fixed preheating frames 22 and three mounting frames 23 are fixedly provided on the top of the two support frames 21 respectively. The three fixed preheating frames 22 are stacked on the top of the rear support frame 21, and the three mounting frames 23 are stacked on the top of the front support frame 21, and the inside of the three mounting frames 23 is fixedly provided with a servo electric cylinder 24, and the driving ends of the three servo electric cylinders 24 are fixedly provided with a movable preheating frame 25, and the three fixed preheating frames 22 and the three movable preheating frames 25 are provided with an arc groove on the opposite side, wherein one side of the inner wall of the arc groove is provided with an electric heating plate.

[0040] Specifically, the arc grooves arranged on the opposite sides of the three fixed preheating racks 22 and the three movable preheating racks 25 match each other, but the diameter of the arc grooves gradually decreases from bottom to top to adapt to the residual heat treatment of steel pipes of different diameters before processing. The number of fixed preheating racks 22 and workpiece preheating units 3 can be any, and can be adaptively adjusted according to processing requirements; a through groove is provided on the top of the processing machine tool 1, which is used to allow the fixed preheating rack 22, the mounting rack 23 and the movable preheating rack 25 to be controlled up and down on the top of the processing machine tool 1. The corresponding fixed preheating rack 22 and the movable preheating rack 25 are selected according to the size specifications of the steel pipe to be processed to ensure the preheating effect of the steel pipe to be processed.

[0041] It should be noted that when preheating the steel pipe before bending, the corresponding fixed preheating frame 22 and movable preheating frame 25 are selected according to the size specifications of the steel pipe to be processed, and the two lifting servo linear slides 19 are used to drive the height adjustment frame 20 to move up and down inside the processing machine tool 1, so that the corresponding fixed preheating frame 22 and movable preheating frame 25 are above the processing machine tool 1, and at the same time, the central axis of the circular through groove formed by the arc groove between the selected fixed preheating frame 22 and movable preheating frame 25 coincides with the central axis of the rotating frame 11. At this time, the steel pipe is passed through the fixed preheating frame 22 and the movable preheating frame 25, and the driving end of the servo electric cylinder 24 is used to control the movable preheating frame 25 to approach one side of the fixed preheating frame 22, and the arc groove set on one side of the fixed preheating frame 22 and the movable preheating frame 25 is used to cover the surface of the steel pipe, and the electric heating plate set on the inner side wall of the arc groove is used to preheat the surface of the steel pipe, so as to facilitate subsequent further processing of the steel pipe.

[0042] In a specific embodiment, the present invention fixes the fixed preheating frame 22 and the mounting frame 23 on the top of the two support frames 21 respectively, wherein the servo electric cylinder 24 in the mounting frame 23 can drive the movable preheating frame 25 to move. This design enables the preheating unit to be adaptively adjusted according to the size of the steel pipe. The arc grooves on the opposite sides of the three fixed preheating frames 22 and the three movable preheating frames 25 gradually decrease in diameter from bottom to top, which can adapt to steel pipes of different diameters, and their number can be increased or decreased as needed, which greatly enhances the versatility; the through groove on the top of the processing machine tool 1 cooperates with the two lifting servo linear slides The platform 19 drives the height adjustment frame 20 to move up and down, and can accurately adjust the matching fixed preheating frame 22 and movable preheating frame 25 to the appropriate position, so that the central axis of the circular through groove formed by the arc grooves of the two coincides with the central axis of the rotating frame 11, ensuring smooth feeding of the steel pipe; during preheating, the servo electric cylinder 1 24 drives the movable preheating frame 25 to approach the fixed preheating frame 22, and uses the electric heating plate on the inner wall of the arc groove to perform a covering preheating on the steel pipe, which not only achieves a uniform and efficient preheating effect, but also provides a good pretreatment foundation for subsequent bending processing, effectively improving the quality and efficiency of steel pipe processing.

[0043] Example 2

[0044] As a further explanation of the scheme of this embodiment, the bending unit 5 includes a bending frame 27 and a bending limit frame 31. A rotating table 26 is rotatably provided on one side of the top of the height adjustment frame 20, and three bending frames 27 are fixedly provided on the top of the rotating table 26. The three bending frames 27 are stacked on the top of the rotating table 26, and a connecting shaft 33 is fixedly provided inside the three bending frames 27. A rotating servo motor 32 is fixedly provided at the bottom of the height adjustment frame 20, and the top end of the output shaft of the rotating servo motor 32 is fixedly connected to the bottom end of the rotating table 26; the rotating table 26 is controlled to rotate on the top of the height adjustment frame 20 by the output shaft of the rotating servo motor 32, thereby Drive the three bending frames 27 to rotate; a connecting frame 28 is fixedly provided on one side of the rotating table 26, and three mounting frames 29 are fixedly provided on the top of the connecting frame 28, and servo electric cylinders 2 30 are fixedly provided inside the three mounting frames 29, and the driving ends of the three servo electric cylinders 2 30 are fixedly provided with bending limit frames 31, and bending grooves are provided on one side of the three bending limit frames 31 and the outer circumferences of the three bending frames 27; the bending grooves provided on the three bending limit frames 31 and the three bending frames 27 respectively correspond to the arc grooves provided on the three fixed preheating frames 22 and the three movable preheating frames 25, so as to adapt to the bending processing of steel pipes of different specifications.

[0045] It should be noted that when bending a steel pipe, one end of the steel pipe is brought to one side of the bending frame 27. The drive end of the servo electric cylinder 2 (30) is used to control the corresponding bending limit frame 31 to contact one side of the bending frame 27. The bending grooves provided on the bending frame 27 and the servo electric cylinder 2 (30) are used to clamp and limit the end of the steel pipe. The output shaft of the rotating servo motor 32 is used to control the rotation of the rotary table 26, thereby driving the end of the steel pipe to bend along the bending groove on the outer surface of the bending frame 27. The rotary table 26, which is installed on the top of the height adjustment frame 20, cooperates with the rotating servo motor 32 at the bottom to accurately control the rotation of the three stacked bending frames 27, providing the power foundation for bending the steel pipe. The combination of the connecting frame 28, the mounting frame 29, and the servo electric cylinder 2 (30) can drive the bending limit frame 31 to move flexibly, cooperating with the bending frame 27 to achieve clamping and limiting of the steel pipe. The bending grooves on the bending limit frame 31 and bending frame 27 correspond to the arcuate grooves on the fixed preheating frame 22 and movable preheating frame 25 in the workpiece preheating unit. This adaptive design allows the bending unit to process steel pipes of different specifications, greatly enhancing its versatility. During actual processing, servo cylinder 2 30 drives the bending limit frame 31 to cooperate with the bending frame 27 to clamp the steel pipe. The rotary servo motor 32 then drives the rotary table 26 to rotate the steel pipe along the bending groove, completing the precise bending. This not only effectively ensures bending accuracy, but also significantly improves processing efficiency through automated control, providing a reliable solution for diverse steel pipe processing needs.

[0046] As a further explanation of the scheme of this embodiment, the cutting unit 4 includes a cutting frame 36, which is slidably arranged inside the movable groove 34, and the two sides of the cutting frame 36 are respectively slidably connected to the opposite sides of the two horizontal adjustment linear slides 35. The top of the cutting frame 36 is fixed with a movable top plate 37 by bolts, and a cutting chamber 38 is provided inside the cutting frame 36. A rotating frame 2 39 is rotatably provided in the middle of the cutting chamber 38, and a laser 43 is fixedly provided inside the rotating frame 2 39. The outer peripheral surface of the rotating frame 2 39 is provided with an annular tooth groove 2 42. A driving motor 2 41 is also fixedly provided on one side of the cutting frame 36, and one end of the output shaft of the driving motor 2 41 is fixedly provided with a tooth meshing with the annular tooth groove 2 42. Transmission drive gear 2 40; cutting auxiliary rings 44 are fixedly provided on both sides of the interior of the cutting chamber 38, and the inner wall and side wall of the cutting auxiliary ring 44 are respectively provided with blowing ports and suction ports, and a waste chip collection box 47 and a suction pump 48 are fixedly provided on the rear side of the interior of the processing machine tool 1, and the feed end of the waste chip collection box 47 is connected to the output end of the suction pump 48, and the input end of the suction pump 48 is connected to the interior of the suction ports on the side walls of the two cutting auxiliary rings 44 through the suction pipe; an auxiliary gas box 45 and an air pump 46 are fixedly provided on the front side of the interior of the processing machine tool 1, and the air outlet end of the auxiliary gas box 45 is connected to the input end of the air pump 46, and the input end of the air pump 46 is connected to the interior of the blowing ports on the inner walls of the two cutting auxiliary rings 44 through the air pipe.

[0047] It should be noted that when cutting one end of the steel pipe, the output shaft of the driving motor 2 41 is used to control the driving gear 2 40 to rotate, and the driving gear 2 40 is used to drive the rotating frame 2 39 to rotate inside the cutting chamber 38, so that the laser 43 set inside the rotating frame 2 39 emits a laser to perform ring cutting on the steel pipe. At the same time, during the cutting process, the air blowing ports on the inner walls of the cutting auxiliary rings 44 on both sides are used to blow protective gas into the interior of the cutting chamber 38, and the suction ports on the side walls of the two cutting auxiliary rings 44 are used to absorb the waste chips generated during the cutting process; wherein, rubber sealing rings are provided on both sides of the cutting chamber 38, and cross cuts are provided in the middle of the rubber sealing rings on both sides, and the rubber sealing rings on both sides are used to create a laser cutting environment filled with protective gas for the interior of the cutting chamber 38.

[0048] Example 3

[0049] As a further explanation of the solution of this embodiment, the bending auxiliary unit 6 includes an electric clamp 54, and a lifting drive frame 49 is fixedly provided on the front and rear sides of one side of the processing machine tool 1, and a lifting frame 51 is slidably provided between the two lifting drive frames 49 through an electric control slide. A feeding slide rail 52 is fixedly provided on the top of the lifting frame 51, and two feeding sliders 53 are slidably provided on the top of the feeding slide rail 52. Electric clamps 54 are fixedly provided on the top of the two feeding sliders 53, and rubber pads are provided on the inner walls of the two electric clamps 54.

[0050] It should be noted that before bending the steel pipe, the memory alloy component is placed on the top of the two electric clamps 54, and the two electric clamps 54 are used to stretch the memory alloy component into a straight state. Then, the lifting drive frame 49 is used to drive the lifting frame 51 to move upward, and the feeding slider 53 on the right is used to send the memory alloy component to the left. After the memory alloy component is lifted to the same horizontal line as the steel pipe, the feeding slider 53 on the right is used to cooperate with the electric clamps 54 to continuously feed the right end of the memory alloy component into the interior of the steel pipe, and the electric heating plates inside the fixed preheating frame 22 and the movable preheating frame 25 are used to heat the steel pipe, so that the memory alloy component inside the steel pipe reaches the phase change temperature, and then the memory alloy component is expanded inside the steel pipe. The expanded memory alloy component is used to support the inside of the steel pipe, thereby improving the accuracy and quality of the steel pipe during the bending process.

[0051] Example 4

[0052] Specifically, this embodiment discloses a bending and cutting method based on steel pipe processing, including the following steps:

[0053] Step 1, place the steel pipe to be processed on the feed rack 10 of the rotary feeding unit 2, adjust the position of the feed rack 10 on the processing machine tool 1 by the feed adjustment linear slide 7 and the adjustment slider 8, use the built-in electric push rod of the adjustment slider 8 to control the lifting plate 9 to move up and down, so that the feed rack 10 adapts to the height of the steel pipe, start the micro electric cylinder 13, drive the positioning plate 14 to approach the surface of the steel pipe, and the ball on one side of the positioning plate 14 contacts the surface of the steel pipe to complete the feed positioning; at the same time, select a suitable number of limit blocks 15 to make them contact with the surface of the steel pipe, drive the drive gear 16 to rotate through the drive motor 17, and combine with the meshing transmission with the annular tooth groove 18 to control the rotation of the rotating rack 11 to realize the rotation positioning of the steel pipe;

[0054] Step 2: According to the size specifications of the steel pipe to be processed, use two lifting servo linear slides 19 to drive the height adjustment frame 20 to move up and down inside the processing machine tool 1, select the matching fixed preheating frame 22 and movable preheating frame 25, so that the central axis of the circular through groove formed by the arc grooves of the two coincides with the central axis of the rotating frame 11, pass the steel pipe through the fixed preheating frame 22 and the movable preheating frame 25, start the servo electric cylinder 1 24, drive the movable preheating frame 25 to move closer to the fixed preheating frame 22, and use the electric heating plate on the inner wall of the arc groove to perform a covering preheating on the surface of the steel pipe in preparation for subsequent processing;

[0055] Step 3: While the steel pipe is preheating, the memory alloy component is placed on top of the two electric clamps 54 of the bending auxiliary unit 6. The electric clamps 54 stretch the memory alloy component into a horizontal straight state. The lifting frame 51 is driven upward by the lifting drive frame 49, and the memory alloy component is sent to the same level as the steel pipe by the feeding slide rail 52 and the feeding slider 53. Then, the right end of the memory alloy component is continuously fed into the interior of the steel pipe. As the steel pipe is preheated, the internal memory alloy component reaches the phase change temperature and expands to form a support for the interior of the steel pipe.

[0056] Step 4: Send one end of the preheated steel pipe with the memory alloy component placed inside to the side of the bending frame 27 of the bending unit 5, start the servo electric cylinder 2 30, drive the bending limit frame 31 to contact the bending frame 27, use the bending grooves on both to clamp and limit the one end of the steel pipe, and rotate the servo motor 32 to drive the rotating table 26 to rotate, thereby driving the bending frame 27 to rotate, so that the one end of the steel pipe is accurately bent along the bending groove;

[0057] Step 5. According to the cutting requirements, use the horizontal adjustment linear slide 35 to adjust the position of the cutting frame 36 in the cutting unit 4, locate the steel pipe cutting position, start the drive motor 2 41, and drive the rotating frame 2 39 to rotate through the engagement transmission of the driving gear 2 40 and the annular tooth groove 2 42, so that the laser 43 performs ring cutting on the steel pipe. During the cutting process, the air pump 46 blows the protective gas in the auxiliary gas box 45 into the cutting chamber 38 through the blowing port on the inner wall of the cutting auxiliary ring 44. At the same time, the suction pump 48 absorbs the waste generated by the cutting into the waste collection box 47 through the suction port on the side wall of the cutting auxiliary ring 44. The rubber sealing rings and cross cuts on both sides of the cutting chamber 38 ensure the protective gas environment in the chamber, completing the steel pipe cutting operation.

[0058] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0059] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0060] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0061] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A bending and cutting device based on steel pipe processing, characterized in that: include: A processing machine tool (1) is provided with a rotary feeding unit (2) on the right side of the top of the processing machine tool (1), and the rotary feeding unit (2) is used to control the feeding direction of the steel pipe and the bending angle of the steel pipe; a lifting servo linear slide (19) is fixedly provided on the front and rear sides of the inner wall of the processing machine tool (1), and a height adjustment frame (20) is slidably provided between the two lifting servo linear slides (19), a workpiece preheating unit (3) is provided on one side of the top of the height adjustment frame (20), and a bending unit (5) is provided on the other side of the top of the height adjustment frame (20), and the steel pipe to be processed is preheated by the workpiece preheating unit (3) to facilitate subsequent bending. The bending unit (5) performs bending processing on the steel pipe at any angle; a movable groove (34) is further provided on the top of the processing machine (1) and located between the workpiece preheating unit (3) and the bending unit (5), and horizontal adjustment linear slides (35) are fixedly provided on both sides of the inner wall of the movable groove (34); a cutting unit (4) is slidably provided between the two horizontal adjustment linear slides (35), and the cutting unit (4) is used for automatically performing ring cutting processing on the steel pipe; a bending auxiliary unit (6) is further provided on the side of the processing machine (1) close to the bending unit (5), and the bending auxiliary unit (6) is used for automatically feeding the memory alloy component into the interior of the steel pipe.

2. A bending and cutting device based on steel pipe processing according to claim 1, characterized in that: The rotary feeding unit (2) includes a feeding frame (10), a feeding adjustment linear slide (7) is fixedly provided on one side of the top of the processing machine tool (1), and an adjusting slider (8) is slidingly provided on the top of the feeding adjustment linear slide (7), a lifting plate (9) is movably provided on the top of the adjusting slider (8), and the lifting plate (9) moves up and down through an electric push rod built into the adjusting slider (8), a feeding frame (10) is fixedly provided on the top of the lifting plate (9), a rotating frame (11) is rotatably provided inside the feeding frame (10), and a plurality of fixed blocks (12) are fixedly provided inside the rotating frame (11).

3. A bending and cutting device based on steel pipe processing according to claim 2, characterized in that: The plurality of fixed blocks (12) are arranged at equal angles with respect to the central axis of the rotating frame (11), and a micro-electric cylinder (13) is fixedly arranged inside the plurality of fixed blocks (12), and a positioning plate (14) and a limiting block (15) are movably arranged on one side of two adjacent fixed blocks (12), and one side of the positioning plate (14) and the limiting block (15) are fixedly connected to the driving ends of the two micro-electric cylinders (13).

4. The bending and cutting device based on steel pipe processing according to claim 2, characterized in that: A driving motor (17) is fixedly provided on one side of the feeding frame (10), and a driving gear (16) is fixedly provided on one end of the output shaft of the driving motor (17). An annular tooth groove (18) is provided on the outer peripheral surface of the rotating frame (11), and the tooth surface of the driving gear (16) is meshed with the tooth surface of the annular tooth groove (18) for transmission.

5. The bending and cutting device based on steel pipe processing according to claim 1, characterized in that: The workpiece preheating unit (3) comprises a fixed preheating frame (22) and a movable preheating frame (25), two support frames (21) are fixedly provided on one side of the top of the height adjustment frame (20), and three fixed preheating frames (22) and three mounting frames (23) are fixedly provided on the top of the two support frames (21), the three fixed preheating frames (22) are stacked on the top of the rear support frame (21), and the three mounting frames (23) are stacked on the top of the front support frame (21), and the interiors of the three mounting frames (23) are fixedly provided with servo electric cylinders (24), and the driving ends of the three servo electric cylinders (24) are fixedly provided with movable preheating frames (25), and arc grooves are provided on the opposite sides of the three fixed preheating frames (22) and the three movable preheating frames (25), wherein electric heating plates are provided on one side of the inner wall of the arc grooves.

6. The bending and cutting device based on steel pipe processing according to claim 1, characterized in that: The bending unit (5) comprises a bending frame (27) and a bending limit frame (31); a rotating platform (26) is rotatably provided on one side of the top of the height adjustment frame (20); and three bending frames (27) are fixedly provided on the top of the rotating platform (26); the three bending frames (27) are stacked on the top of the rotating platform (26); and a connecting shaft (33) is fixedly provided inside the three bending frames (27); a rotating servo motor (32) is fixedly provided at the bottom of the height adjustment frame (20), and the top end of the output shaft of the rotating servo motor (32) is fixedly connected to the bottom end of the rotating platform (26).

7. The bending and cutting device based on steel pipe processing according to claim 6, characterized in that: A connecting frame (28) is fixedly provided on one side of the rotating table (26), and three mounting frames (29) are fixedly provided on the top of the connecting frame (28), servo electric cylinders (30) are fixedly provided inside the three mounting frames (29), and driving ends of the three servo electric cylinders (30) are fixedly provided with bending limit frames (31), and one side of the three bending limit frames (31) and the outer peripheral surfaces of the three bending frames (27) are provided with bending grooves.

8. The bending and cutting device based on steel pipe processing according to claim 1, characterized in that: The cutting unit (4) includes a cutting frame (36), the cutting frame (36) is located in the movable groove (34) and is slidably arranged, and the two sides of the cutting frame (36) are respectively slidably connected to the opposite sides of the two horizontal adjustment linear slides (35), the top of the cutting frame (36) is fixed with a movable top plate (37) by bolts, and a cutting chamber (38) is provided inside the cutting frame (36), a rotating frame 2 (39) is rotatably arranged in the middle of the cutting chamber (38), and a laser (43) is fixedly arranged inside the rotating frame 2 (39), and the outer peripheral surface of the rotating frame 2 (39) is provided with an annular tooth groove 2 (4 2), a driving motor 2 (41) is fixedly provided on one side of the cutting frame (36), and a driving gear 2 (40) is fixedly provided on one end of the output shaft of the driving motor 2 (41) for transmission by meshing with the teeth of the annular tooth groove 2 (42); cutting auxiliary rings (44) are fixedly provided on both sides of the interior of the cutting chamber (38), and the inner wall and side wall of the cutting auxiliary ring (44) are respectively provided with a blowing port and a suction port, a waste chip collection box (47) and a material extraction pump (48) are fixedly provided on the rear side of the interior of the processing machine tool (1), and an auxiliary gas box (45) and an air guide pump (46) are fixedly provided on the front side of the interior of the processing machine tool (1).

9. The bending and cutting device based on steel pipe processing according to claim 1, characterized in that: The bending auxiliary unit (6) includes an electric clamp (54), and a lifting drive frame (49) is fixedly provided at the front and rear sides of one side of the processing machine tool (1), and a lifting frame (51) is slidably provided between the two lifting drive frames (49) through an electrically controlled slide, a feeding slide rail (52) is fixedly provided on the top of the lifting frame (51), and two feeding slide blocks (53) are slidably provided on the top of the feeding slide rail (52), and electric clamps (54) are fixedly provided on the top of the two feeding slide blocks (53), and rubber pads are provided on the inner walls of the two electric clamps (54).

10. A cutting method based on the bending and cutting device for steel pipe processing according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Adjust the position and height of the feed rack (10) by rotating the feed unit (2), and use the positioning plate (14), the limit block (15) and the drive motor (17) to complete the steel pipe feeding positioning and rotation control; Step 2: According to the size of the steel pipe, use the lifting servo linear slide (19) to adjust the height adjustment frame (20), select the appropriate fixed preheating frame (22) and movable preheating frame (25), cover the steel pipe and heat it; Step 3: The electric clamp (54) stretches the memory alloy component and then inserts it into the steel pipe, and expands it by preheating to support the inside of the steel pipe; Step 4: Send the preheated steel pipe to the bending unit (5), clamp the bending limit frame (31) and the bending frame (27), and rotate the servo motor (32) to drive the steel pipe to bend; Step 5: Horizontally adjust the linear slide (35) to position the cutting frame (36), and drive the second motor (41) to drive the laser (43) to perform circular cutting on the steel pipe, while assisting gas protection and chip removal.

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