Adjustable pipe bending apparatus

Abstract

The application provides an adjustable pipeline bending equipment, which comprises a fixed base, a rotating mounting ring mechanism, a deflection positioning frame mechanism, a terminal fixing mechanism, a deflection feeding mechanism, a middle limiting mechanism and an inner clamping plate mechanism; the fixed base is provided with a rotating ring groove, the mounting ring of the rotating mounting ring mechanism is connected with a first annular track; the deflection frame of the deflection positioning frame mechanism is slidingly connected with a second annular track; the deflection frame is connected with the mounting ring or the fixed base. The pipeline is bent by rotating the terminal positioning assembly driven by the rotating displacement ring mechanism, the deflection positioning frame mechanism is connected with the fixed base or the rotating mounting ring mechanism, the terminal of the pipeline is limited and fixed by the terminal fixing mechanism, the inner wall of the pipeline is heated and supported by the deflection feeding mechanism and the inner clamping plate mechanism, wrinkles of the pipeline are avoided during bending, the middle part of the pipeline is heated and fixed by the middle limiting mechanism, and the efficiency of pipeline bending treatment is improved.

Description

Technical Field

[0001] This invention belongs to the field of pipe processing technology, specifically relating to an adjustable pipe bending device. Background Technology

[0002] Pipe bending refers to the process of bending a pipe into a desired shape through heating or cold working during pipe installation to change the pipe's route to avoid obstacles or meet design requirements. The main purpose of bending is to ensure that the pipe can smoothly pass through obstacles or change direction as required by the design.

[0003] In current pipe bending manufacturing processes, the common method is to directly apply mechanical force to the outer wall of the pipe to achieve the required bending angle. However, existing processes generally lack effective adaptive treatment mechanisms for the inner wall of the pipe bending section. Specifically, there is a lack of active and controllable heating of the inner wall, and a lack of real-time and dynamic support for the inner wall. This leads to instability of the inner wall material (especially the compression area inside the bend) when the pipe undergoes plastic deformation under radial pressure, due to the loss of internal support and constraint. This can cause wrinkles to form on the inner wall of the pipe during bending. These wrinkles not only disrupt the smoothness of the inner wall but may also generate eddies and noise, affecting transport efficiency. A deeper impact is that they constitute structural weak points and stress concentration areas, potentially weakening the pipe's pressure-bearing capacity, fatigue life, and overall structural integrity. Therefore, this invention designs a modular construction technology for stainless steel water tanks using a pre-installed assembly method to solve the above problems. Summary of the Invention

[0004] In order to overcome the problems existing in the prior art, the present invention provides an adjustable pipe bending device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This invention provides an adjustable pipe bending device, comprising a fixed base, a rotating mounting ring mechanism, and two sets of deflection positioning frame mechanisms, an end fixing mechanism, a deflection feeding mechanism, and an inner clamping plate mechanism. The fixed base has a rotating ring groove, within which are arranged a first annular track and a second annular track with concentric centers. The rotating mounting ring mechanism includes a mounting ring, the lower end of which is slidably connected to the first annular track. The deflection positioning frame mechanism includes an L-shaped deflection frame, with a horizontal section distributed above the mounting ring and a vertical section distributed outside the mounting ring, the bottom of which is slidably connected to the second annular track. The L-shaped deflection frame is provided with a connector, allowing it to connect to the mounting ring or the fixed base. The end fixing mechanism is fixed to the top of the L-shaped deflection frame for fixing the pipe to be processed. The deflection feeding mechanism includes a feeding component and a heating support component. The feeding component drives the heating support component to move within the pipe to be processed and heats the pipe, causing it to bend through thermal melting.

[0007] Furthermore, the connecting components of the L-shaped deflection frame include a deflection shaft, a deflection block, an elastic element, a limit rod mounting plate, and a limit rod; the vertical section of the L-shaped deflection frame has a through groove, and the deflection block is rotatably disposed in the through groove via the deflection shaft; the deflection block has a through hole, and the outer end of the limit rod passes through the through hole and is fixedly connected to the limit rod mounting plate; the elastic element is sleeved on the outer surface of the limit rod, and its two ends are fixedly connected to the limit rod mounting plate and the deflection block, respectively; the mounting ring has multiple circumferentially distributed side limit holes, and the rotating ring groove has multiple circumferentially distributed bottom limit holes; when the limit rod is horizontal, the inner end of the limit rod is inserted into the side limit hole to connect the L-shaped deflection frame to the mounting ring; when the limit rod is vertical, the inner end of the limit rod is inserted into the bottom limit hole to connect the L-shaped deflection frame to the fixed base.

[0008] Furthermore, the rotating mounting ring mechanism also includes a first motor, a first gear, and a second gear; the first motor is disposed inside the mounting ring and is fixedly connected to the fixed base; the drive end of the first motor is connected to the first gear, the second gear is fixed on the inner surface of the mounting ring, and the second gear is distributed circumferentially; the first gear meshes with the second gear, and the first motor drives the mounting ring to rotate through the first gear and the second gear.

[0009] Furthermore, the end-fixing mechanism includes a first arc-shaped plate, a first linear motor, and an end-clamping plate; the first arc-shaped plate is fixed to the top of the L-shaped deflection frame by a mounting plate; the number of the first linear motor and the end-clamping plate are the same, the first linear motor is fixed to the inner surface of the first arc-shaped plate, and the drive end of the first linear motor is fixedly connected to the end-clamping plate.

[0010] Furthermore, the feed assembly of the deflection feed mechanism includes a second connector, an outer ring, a rotating plate, a second linear motor, a feed plate, and at least two feed rods; the outer ring is fixedly connected to the mounting plate via the second connector, and the outer ring coincides with the axis of the first arc-shaped plate; the rotating plate is rotatably mounted inside the outer ring; the second linear motor is distributed on the outside of the rotating plate, and both ends of the second linear motor are fixedly connected to the rotating plate and the feed plate, respectively; the rotating plate is provided with a through hole adapted to the feed rod, the feed rod is slidably disposed in the through hole, and the outer end of the feed rod is fixedly connected to the feed plate, and the inner end is connected to the inner clamping plate mechanism, and the heating support assembly is mounted on the inner clamping plate mechanism.

[0011] Furthermore, the second connecting member includes a mounting block, a horizontal rod, and a vertical rod; the mounting plate is provided with a through hole, and the mounting block is distributed on the inner side of the mounting plate; one end of the horizontal rod passes through the through hole and is threadedly fixedly connected to the mounting plate, the other end is fixedly connected to the bottom end of the vertical rod, and the top end of the vertical rod is fixedly connected to the outer wall of the outer ring.

[0012] Furthermore, the inner clamping plate mechanism includes an inner plate, a third linear motor, an adjusting plate, two adjusting rods, two vertical plates, and two outward expansion plate assemblies. The outer side wall of the inner plate is fixedly connected to the feed rod. The third linear motor is installed on the inner side wall of the inner plate, and the drive end of the third linear motor is fixedly connected to the adjusting plate. The two vertical plates are parallel to each other, symmetrically distributed on both sides of the third linear motor, and fixedly connected to the inner plate. The two outward expansion plate assemblies are mirror-symmetrical, respectively disposed on the outer side of the two vertical plates, and respectively movably connected to the two vertical plates. The two adjusting rods are mirror-symmetrical, one end of the adjusting rod is rotatably connected to the adjusting plate through a fifth deflection seat, and the other end is rotatably connected to the outward expansion plate assembly through a sixth deflection seat.

[0013] Furthermore, the outer expansion plate assembly includes a first deflection plate, a second deflection plate, and an outer expansion plate; the inner side of the second deflection plate is movably connected to the adjusting rod via a sixth deflection seat, one end of the second deflection plate is movably connected to the vertical plate via a fourth deflection seat, and the other end is movably connected to the outer expansion plate via a third deflection seat; the first deflection plate is distributed outside the second deflection plate, one end of the first deflection plate is movably connected to the vertical plate via a first deflection seat, and the other end is movably connected to the outer expansion plate via a second deflection seat; the heating support assembly is installed on the outer side of the outer expansion plate.

[0014] Furthermore, the heating support assembly includes a connecting mechanism and an inner support plate; the inner support plate is movably connected to the outer expansion plate through the connecting mechanism; an electric heating wire is provided inside the inner support plate, and the shape of the inner support plate is adapted to the pipe to be treated.

[0015] Furthermore, the connecting mechanism includes a fixed shaft, a torsion spring, and a torsion sleeve; one end of the torsion sleeve is rotatably connected to the outer expansion plate, and the other end is fixedly connected to the inner wall of the inner support plate; the fixed shaft is distributed inside the torsion sleeve and coincides with the axis of the torsion sleeve, one end of the fixed shaft is fixedly connected to the outer expansion plate, and the other end is rotatably connected to the inner wall of the inner support plate; the torsion spring is sleeved outside the fixed shaft, and the torsion spring is connected to the torsion sleeve on one side and to the fixed shaft on the other side.

[0016] Furthermore, a central limiting mechanism is also provided; the central limiting mechanism is located between the two end fixing mechanisms and includes a central shaft, a second arc-shaped plate, a fourth linear motor, and a central clamping plate; the bottom end of the central shaft is fixed to the fixed base, and the second arc-shaped plate is fixedly connected to the top end of the central shaft; at least two sets of the fourth linear motor and the central clamping plate are provided, the fourth linear motor is fixedly connected to the inner wall of the second arc-shaped plate, and the drive end of the fourth linear motor is fixedly connected to the central clamping plate.

[0017] The beneficial effects of this invention are:

[0018] This invention utilizes a rotating displacement ring mechanism to drive the end positioning component, thereby completing the bending of the pipe. A deflection positioning frame mechanism controls the connection with a fixed base or rotating mounting ring mechanism. An end fixing mechanism limits and fixes the end of the pipe. A deflection feeding mechanism and an inner clamping plate mechanism heat and support the inner wall of the pipe, preventing wrinkles during bending. A middle limiting mechanism heats and fixes the middle of the pipe, improving the efficiency of pipe bending. Attached image description:

[0019] Figure 1 This is a schematic diagram of the adjustable pipe bending device of the present invention.

[0020] Figure 2 This is a schematic diagram of the end-fixing mechanism and the deflection feeding mechanism of the present invention;

[0021] Figure 3 This is a schematic diagram of the inner clamping plate mechanism and the middle limiting mechanism of the present invention.

[0022] Figure 4 for Figure 3 A magnified view of region A in the middle.

[0023] Figure 5 This is a cross-sectional view of the heating support assembly of the present invention.

[0024] The labels in the attached diagram are:

[0025] 1. Fixed base; 2. Rotary mounting ring mechanism; 201. First motor; 202. First gear; 203. Mounting ring; 204. Second gear; 205. Side limiting hole; 3. Rotary ring groove; 4. Deflection positioning frame mechanism; 401. L-shaped deflection frame; 402. Deflection shaft; 403. Deflection block; 404. Elastic element; 405. Limiting rod mounting plate; 406. Limiting rod; 5. Mounting plate; 6. End fixing mechanism; 601. First arc plate; 602. First linear motor; 603. End clamping plate; 7. Deflection feed mechanism; 701. Mounting block; 702. Horizontal rod; 703. Vertical rod; 704. Outer ring; 705. Rotating plate; 706. Second linear motor; 707. Feed plate; 708 8. Feed rod; 9. Inner clamping plate mechanism; 10. Inner plate; 11. Vertical plate; 12. First deflection seat; 13. First deflection plate; 14. Second deflection seat; 15. Outer expansion plate; 16. Heating support assembly; 17. Fixed shaft; 18. Torsion spring; 19. Torsion sleeve; 10. Inner support plate; 11. Third deflection seat; 12. Second deflection plate; 13. Third linear motor; 14. Adjusting plate; 15. Fifth deflection seat; 16. Adjusting rod; 17. Sixth deflection seat; 18. Middle limiting mechanism; 19. Central shaft; 10. Second arc plate; 11. Fourth linear motor; 12. Middle clamping plate; 13. Bottom limiting hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions 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, 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.

[0027] This invention provides an adjustable pipe bending device, including a fixed base 1, a rotating mounting ring mechanism 2, two sets of deflection positioning frame mechanisms 4, an end fixing mechanism 6, a deflection feeding mechanism 7, and an inner clamping plate mechanism 8.

[0028] Reference Figures 1-3 The fixed base 1 is provided with a rotating annular groove 3, and a first annular track and a second annular track with their centers coincident are provided in the rotating annular groove 3. The second annular track is distributed outside the first annular track.

[0029] The rotating mounting ring mechanism 2 includes a first motor 201, a first gear 202, a mounting ring 203, and a second gear 204. The lower end of the mounting ring 203 is slidably connected to a first annular track, and the mounting ring 203 is rotatable. More specifically, the first motor 201 is disposed inside the mounting ring 203 and fixedly connected to the fixed base 1. The drive end of the first motor 201 is connected to the horizontally positioned first gear 202. The second gear 204 is fixed to the inner surface of the mounting ring 203 and is circumferentially distributed. The first gear 202 meshes with the second gear 204. When the first motor 201 is started, it drives the first gear 202 to rotate, which in turn drives the second gear 204 to rotate, thereby causing the mounting ring 203 to rotate.

[0030] The deflection positioning frame mechanism 4 is provided in two sets, each set including an L-shaped deflection frame 401. The horizontal section of the L-shaped deflection frame 401 is distributed above the mounting ring 203, and the vertical section is distributed outside the mounting ring 203. The bottom of the vertical section is slidably connected to the second annular track. The L-shaped deflection frame 401 can move circumferentially along the second annular track.

[0031] In addition, the L-shaped deflector 401 is provided with a connector, which allows it to be connected to the mounting ring 203 or the fixed base 1. Specifically, the connector of the L-shaped deflector 401 includes a deflection shaft 402, a deflection block 403, an elastic element 404, a limit rod mounting plate 405, and a limit rod 406. The vertical section of the L-shaped deflector 401 has a rectangular through slot, and the deflection block 403 is rotatably mounted in the through slot via the deflection shaft 402, allowing it to flip up and down. The deflection block 403 has a horizontal through hole, and the limit rod 406 is movably mounted in the through hole, with the length of the limit rod 406 greater than the length of the through hole. The outer end of the limit rod 406 passes through the through hole and is fixedly connected to the limit rod mounting plate 405. The elastic element 404 is sleeved on the outer surface of the limit rod 406, and both ends of the elastic element 404 are fixedly connected to the limit rod mounting plate 405 and the deflection block 403, respectively. The mounting ring 203 is provided with a plurality of circumferentially distributed side limiting holes 205, and the rotating annular groove 3 is provided with a plurality of circumferentially distributed bottom limiting holes 10 (the bottom limiting holes 10 are distributed between the first annular track and the second annular track). When the limiting rod 406 is horizontal, the inner end of the limiting rod 406 is inserted into the side limiting hole 205 to connect the L-shaped deflector 401 to the mounting ring 203; when the limiting rod 406 is vertical, the inner end of the limiting rod 406 is inserted into the bottom limiting hole 10 to connect the L-shaped deflector 401 to the fixed base 1.

[0032] Without external force, the elastic element 404 does not deform. At this time, the limiting rod 406 extends into the side limiting hole 205 or the bottom limiting hole 10, and the L-shaped deflector 401 is connected to the mounting ring 203 or the fixed base 1. When the limiting rod mounting plate 405 is pulled outward, the elastic element 404 is stretched, and the limiting rod 406 disengages from the side limiting hole 205 or the bottom limiting hole 10. By flipping the deflector block 403, it switches to a horizontal or vertical state. After removing the external force, under the action of the elastic element 404, the limiting rod 406 re-enters the bottom limiting hole 10 / side limiting hole 205, achieving connection switching. When the L-shaped deflector 401 is connected to the fixed base 1, the L-shaped deflector 401 remains fixed and does not move circumferentially. When the L-shaped deflector 401 is connected to the mounting ring 203, the L-shaped deflector 401 can move circumferentially with the mounting ring 203.

[0033] The end-fixing mechanism 6 is fixed to the top of the L-shaped deflector 401 and is used to fix the pipe to be processed. It includes a first arc-shaped plate 601, a first linear motor 602, and an end clamping plate 603. The first arc-shaped plate 601 is fixed to the top of the L-shaped deflector 401 by a mounting plate 5. The number of first linear motors 602 and end clamping plates 603 is the same, with at least two provided. The first linear motor 602 is fixed to the inner surface of the first arc-shaped plate 601, and its drive end is fixedly connected to the end clamping plate 603. The first linear motor 602 can drive the end clamping plate 603 to move along a direction closer to or further away from the pipe to be processed, thereby clamping the pipe and keeping it stable.

[0034] The deflection feed mechanism 7 includes a feed assembly and a heating support assembly 807. The feed assembly drives the heating support assembly 807 to move within the pipe to be processed and heats the pipe, causing it to bend and melt. Specifically, the feed assembly of the deflection feed mechanism 7 includes a second connector, an outer ring 704, a rotating plate 705, a second linear motor 706, a feed plate 707, and two feed rods 708. The outer ring 704 is fixedly connected to the mounting plate 5 via the second connector, and the outer ring 704 coincides with the axis of the first arc-shaped plate 601. The rotating plate 705 is rotatably mounted inside the outer ring 704. The second linear motor 706 is distributed on the outside of the rotating plate 705, and its two ends are fixedly connected to the rotating plate 705 and the feed plate 707, respectively. The rotating plate 705 has two through holes adapted to the feed rods 708. The two feed rods 708 are slidably disposed in the two through holes, and the outer ends of the feed rods 708 are fixedly connected to the feed plate 707, while the inner ends are connected to the inner clamping mechanism 8. The heating support assembly 807 is mounted on the inner clamping mechanism 8. In application, the second linear motor 706 is started. The second linear motor 706 can control the feed distance of the two feed rods 708, thereby adjusting and controlling the positions of the inner clamping mechanism 8 and the heating support assembly 807.

[0035] In this embodiment, the second connecting member includes a mounting block 701, a horizontal rod 702, and a vertical rod 703. The mounting plate 5 is provided with a through hole, and the mounting blocks 701 are distributed on the inner side of the mounting plate 5 (the two are not connected). One end of the horizontal rod 702 passes through the through hole and is threadedly fixed to the mounting plate 5, and the other end is fixedly connected to the bottom end of the vertical rod 703. The top end of the vertical rod 703 is fixedly connected to the outer wall of the outer ring 704.

[0036] In this embodiment, the inner locking plate mechanism 8 includes an inner plate 801, a third linear motor 811, an adjusting plate 812, two adjusting rods 814, two vertical plates 802, and two outward expansion plate assemblies, as follows: Figure 4 As shown. The outer wall of the inner plate 801 is fixedly connected to the feed rod 708. The third linear motor 811 is installed on the inner wall of the inner plate 801, and the drive end of the third linear motor 811 is fixedly connected to the adjusting plate 812. Two vertical plates 802 are parallel to each other and symmetrically distributed on both sides of the third linear motor 811, and are fixedly connected to the inner plate 801. Two outward expansion plate groups are mirror-symmetrical and are respectively set on the outside of the two vertical plates 802, and are movably connected to the two vertical plates 802 respectively. Two adjusting rods 814 are mirror-symmetrical. One end of the adjusting rod 814 is rotatably connected to the adjusting plate 812 through the fifth deflection seat 813, and the other end is rotatably connected to the outward expansion plate group through the sixth deflection seat 815.

[0037] like Figure 4 As shown, the expansion plate assembly includes a first deflection plate 804, a second deflection plate 809, and an expansion plate 806. The inner side of the second deflection plate 809 is movably connected to the adjusting rod 814 via a sixth deflection seat 815. One end of the second deflection plate 809 is movably connected to the vertical plate 802 via a fourth deflection seat 810, and the other end is movably connected to the expansion plate 806 via a third deflection seat 808. The first deflection plate 804 is distributed outside the second deflection plate 809. One end of the first deflection plate 804 is movably connected to the vertical plate 802 via a first deflection seat 803, and the other end is movably connected to the expansion plate 806 via a second deflection seat 805. The heating support assembly 807 is installed on the outer side of the expansion plate 806.

[0038] When in use, the third linear motor 811 is started. The third linear motor 811 can adjust the outward expansion angle of the two outward expansion plate groups through the adjusting plate 812 and the adjusting rod 814, which can be used for pipes with different diameters.

[0039] Furthermore, the heating support assembly 807 includes a connecting mechanism and an inner support plate 8074, which is movably connected to the outer expansion plate 806 via the connecting mechanism. An electric heating wire is disposed within the inner support plate 8074, and the shape of the inner support plate 8074 is adapted to the pipe to be treated. More specifically, the connecting mechanism includes a fixed shaft 8071, a torsion spring 8072, and a torsion sleeve 8073. One end of the torsion sleeve 8073 is rotatably connected to the outer expansion plate 806, and the other end is fixedly connected to the inner wall of the inner support plate 8074. The fixed shaft 8071 is distributed inside the torsion sleeve 8073, coinciding with the axis of the torsion sleeve 8073. One end of the fixed shaft 8071 is fixedly connected to the outer expansion plate 806, and the other end is rotatably connected to the inner wall of the inner support plate 8074. The torsion spring 8072 is sleeved outside the fixed shaft 8071, and is connected to both the torsion sleeve 8073 and the fixed shaft 8071. During application, under the action of external force, the inner support plate 8074 and the outer expansion plate 806 may rotate relative to each other. After the external force disappears, they return to their original positions under the action of the torsion spring 8072.

[0040] As a further preferred embodiment of the present invention, a central limiting mechanism 9 is also provided, such as... Figure 1 As shown. The central limiting mechanism 9 is disposed between the two end fixing mechanisms 6, and includes a central shaft 901, a second arc-shaped plate 902, a fourth linear motor 903, and a central clamping plate 904. The bottom end of the central shaft 901 is detachably fixed to the fixed base 1, and the second arc-shaped plate 902 is fixedly connected to the top end of the central shaft 901. Two sets of the fourth linear motor 903 and the central clamping plate 904 are provided. The fourth linear motor 903 is fixedly connected to the inner wall of the second arc-shaped plate 902, and the drive end of the fourth linear motor 903 is fixedly connected to the central clamping plate 904. The fourth linear motor 903 can drive the central clamping plate 904 to move along the direction of approaching or moving away from the pipe to be processed, thereby clamping the pipe to be processed and keeping it stable. In other embodiments of the present invention, a heating wire may be provided inside the central clamping plate 904, which serves both as support and heating.

[0041] Application process of this invention:

[0042] The pipe to be processed is fixed by the central limiting mechanism 9 and two end fixing mechanisms 6. The first linear motor 602 and the fourth linear motor 903 control the movement of the end clamping plate 603 and the central clamping plate 904 to stably clamp the pipe. At this time, one L-shaped deflection bracket 401 is connected to the fixed base 1, and the other L-shaped deflection bracket 401 is connected to the mounting ring 203. The second linear motor 706 is started, which controls the feed distance of the feed rod 708, so that the inner clamping plate mechanism 8 is in the appropriate position. The third linear motor 811 is started, which adjusts the outward expansion angle of the two outward expansion plate groups through the adjusting plate 812 and the adjusting rod 814, which can be used for pipes with different diameters. The inner wall of the pipe is heated by the inner support plate 8074 with heating wire and the central clamping plate 904, which can also provide heating support for the inner wall of the pipe. The first motor 201 is started, and the mounting ring 203 is rotated through the transmission of the first gear and the second gear 204. This, in turn, causes a set of deflection positioning frame mechanisms 4 and a set of end fixing mechanisms 6 to rotate as well, thereby rotating the pipe and achieving the bending of the pipe.

[0043] This invention enables the pipe bending by setting a rotating displacement ring mechanism 2 to drive the end positioning component. The deflection positioning frame mechanism 4 controls the connection with the fixed base 1 or the rotating mounting ring mechanism 2. The end fixing mechanism 6 limits and fixes the end of the pipe. The deflection feeding mechanism 7 and the inner clamping plate mechanism 8 heat and support the inner wall of the pipe to prevent wrinkles from forming during pipe bending. The middle limiting mechanism 9 heats and fixes the middle of the pipe, improving the efficiency of pipe bending.

[0044] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should be considered within the scope of protection of the present invention.

Claims

1. An adjustable pipe bending device, characterized in that, It includes a fixed base (1), a rotating mounting ring mechanism (2), a deflection positioning frame mechanism (4) with two sets of components, an end fixing mechanism (6), a deflection feeding mechanism (7), and an inner clamping plate mechanism (8); The fixed base (1) is provided with a rotating annular groove (3), and a first annular track and a second annular track with coincident centers are provided in the rotating annular groove (3); the rotating mounting ring mechanism (2) includes a mounting ring (203), and the lower end of the mounting ring (203) is slidably connected to the first annular track; The deflection positioning frame mechanism (4) includes an L-shaped deflection frame (401). The horizontal section of the L-shaped deflection frame (401) is distributed above the mounting ring (203), and the vertical section is distributed outside the mounting ring (203). The bottom of the vertical section is slidably connected to the second annular track. The L-shaped deflection frame (401) is provided with a connector, and the L-shaped deflection frame (401) can be connected to the mounting ring (203) or the fixed base (1) through the connector. The end fixing mechanism (6) is fixed on the top of the L-shaped deflection frame (401) for fixing the pipe to be treated; the deflection feeding mechanism (7) includes a feeding component and a heating support component (807). The feeding component can drive the heating support component (807) to move inside the pipe to be treated and heat the pipe to be treated so that it is hot melted and bent.

2. The adjustable pipe bending equipment according to claim 1, characterized in that, The connecting components of the L-shaped deflection frame (401) include a deflection shaft (402), a deflection block (403), an elastic element (404), a limit rod mounting plate (405), and a limit rod (406); The vertical section of the L-shaped deflection frame (401) is provided with a through groove, and the deflection block (403) is rotatably disposed in the through groove via the deflection shaft (402); the deflection block (403) is provided with a through hole, and the outer end of the limiting rod (406) passes through the through hole and is fixedly connected to the limiting rod mounting plate (405); the elastic element (404) is sleeved on the outer surface of the limiting rod (406), and its two ends are fixedly connected to the limiting rod mounting plate (405) and the deflection block (403) respectively; The mounting ring (203) is provided with a plurality of side limiting holes (205) distributed circumferentially, and the rotating ring groove (3) is provided with a plurality of bottom limiting holes (10) distributed circumferentially; when the limiting rod (406) is horizontal, the inner end of the limiting rod (406) is inserted into the side limiting hole (205) to realize the connection between the L-shaped deflection frame (401) and the mounting ring (203); when the limiting rod (406) is vertical, the inner end of the limiting rod (406) is inserted into the bottom limiting hole (10) to realize the connection between the L-shaped deflection frame (401) and the fixed base (1).

3. The adjustable pipe bending equipment according to claim 1, characterized in that, The rotating mounting ring mechanism (2) further includes a first motor (201), a first gear (202), and a second gear (204); The first motor (201) is located inside the mounting ring (203) and is fixedly connected to the fixed base (1); the driving end of the first motor (201) is connected to the first gear (202), and the second gear (204) is fixed on the inner surface of the mounting ring (203) and is distributed circumferentially; the first gear (202) meshes with the second gear (204), and the first motor (201) drives the mounting ring (203) to rotate through the first gear (202) and the second gear (204).

4. The adjustable pipe bending equipment according to claim 1, characterized in that, The end fixing mechanism (6) includes a first arc plate (601), a first linear motor (602), and an end clamping plate (603); The first arc plate (601) is fixed to the top of the L-shaped deflection frame (401) by the mounting plate (5); the number of the first linear motor (602) and the end plate (603) are the same, the first linear motor (602) is fixed to the inner surface of the first arc plate (601), and the drive end of the first linear motor (602) is fixedly connected to the end plate (603).

5. The adjustable pipe bending equipment according to claim 4, characterized in that, The feed assembly of the deflection feed mechanism (7) includes a second connector, an outer ring (704), a rotating plate (705), a second linear motor (706), a feed plate (707), and at least two feed rods (708); The outer ring (704) is fixedly connected to the mounting plate (5) through the second connector, and the outer ring (704) coincides with the axis of the first arc plate (601); the rotating plate (705) is rotatably installed inside the outer ring (704); the second linear motor (706) is distributed on the outside of the rotating plate (705), and the two ends of the second linear motor (706) are fixedly connected to the rotating plate (705) and the feed plate (707) respectively; The rotating plate (705) is provided with a through hole adapted to the feed rod (708). The feed rod (708) is slidably disposed in the through hole, and the outer end of the feed rod (708) is fixedly connected to the feed plate (707), and the inner end is connected to the inner clamping plate mechanism (8). The heating support assembly (807) is installed on the inner clamping plate mechanism (8).

6. The adjustable pipe bending equipment according to claim 5, characterized in that, The second connector includes a mounting block (701), a horizontal bar (702), and a vertical bar (703); The mounting plate (5) is provided with through holes, and the mounting blocks (701) are distributed on the inner side of the mounting plate (5); One end of the horizontal rod (702) passes through the through hole and is threadedly fixed to the mounting plate (5), and the other end is fixedly connected to the bottom end of the vertical rod (703). The top end of the vertical rod (703) is fixedly connected to the outer wall of the outer ring (704).

7. The adjustable pipe bending equipment according to claim 5, characterized in that, The inner plate mechanism (8) includes an inner plate (801), a third linear motor (811), an adjusting plate (812), two adjusting rods (814), two vertical plates (802), and two outer expansion plate groups; The outer side wall of the inner plate (801) is fixedly connected to the feed rod (708), and the third linear motor (811) is installed on the inner side wall of the inner plate (801). The drive end of the third linear motor (811) is fixedly connected to the adjustment plate (812). The two vertical plates (802) are parallel to each other and symmetrically distributed on both sides of the third linear motor (811), and are fixedly connected to the inner plate (801); the two outer expansion plate groups are mirror symmetrical and are respectively set on the outside of the two vertical plates (802), and are movably connected to the two vertical plates (802); the two adjusting rods (814) are mirror symmetrical, one end of the adjusting rod (814) is rotatably connected to the adjusting plate (812) through the fifth deflection seat (813), and the other end is rotatably connected to the outer expansion plate group through the sixth deflection seat (815).

8. The adjustable pipe bending equipment according to claim 7, characterized in that, The outer expansion plate assembly includes a first deflection plate (804), a second deflection plate (809), and an outer expansion plate (806); The inner side of the second deflection plate (809) is movably connected to the adjusting rod (814) through the sixth deflection seat (815). One end of the second deflection plate (809) is movably connected to the vertical plate (802) through the fourth deflection seat (810), and the other end is movably connected to the outer expansion plate (806) through the third deflection seat (808). The first deflection plate (804) is distributed outside the second deflection plate (809). One end of the first deflection plate (804) is movably connected to the vertical plate (802) through the first deflection seat (803), and the other end is movably connected to the outer expansion plate (806) through the second deflection seat (805). The heating support assembly (807) is installed on the outside of the outer expansion plate (806).

9. The adjustable pipe bending equipment according to claim 8, characterized in that, The heating support assembly (807) includes a connecting mechanism and an inner support plate (8074); The inner support plate (8074) is movably connected to the outer expansion plate (806) via a connecting mechanism; The inner support plate (8074) is equipped with a heating wire, and the shape of the inner support plate (8074) is adapted to the pipe to be treated.

10. The adjustable pipe bending equipment according to claim 9, characterized in that, It is also equipped with a central limiting mechanism (9); The middle limiting mechanism (9) is located between the two end fixing mechanisms (6) and includes a central shaft (901), a second arc plate (902), a fourth linear motor (903) and a middle clamping plate (904); The bottom end of the central shaft (901) is fixed on the fixed base (1), and the second arc plate (902) is fixedly connected to the top end of the central shaft (901); the fourth linear motor (903) and the middle clamping plate (904) are each provided with at least two sets, the fourth linear motor (903) is fixedly connected to the inner wall of the second arc plate (902), and the drive end of the fourth linear motor (903) is fixedly connected to the middle clamping plate (904).

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