Steel pipe continuous bending device

Abstract

The utility model relates to the technical field of steel pipe bending, in particular to a continuous steel pipe bending device which comprises a bending workbench. The steel pipe conveying assembly is arranged above the bending workbench and used for conveying steel pipes; the bending device is arranged at the end, away from the steel pipe conveying assembly, of the steel pipe and used for bending the steel pipe for multiple times; the bending device comprises two sets of first fixing assemblies and two sets of second fixing assemblies, and the two sets of first fixing assemblies and the two sets of second fixing assemblies are tightly attached to the steel pipe and used for clamping and fixing the steel pipe. The adjusting device is fixedly connected with the bending device and used for adjusting the distance between the first fixing assembly and the second fixing assembly. By operating the bending device, the bending device can bend the steel pipe for the second time at the same time, so that the number of times of bending is increased, the steel pipe can be bent for multiple times within the time of one-time bending, and the bending efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe bending, in particular to a steel pipe continuous bending device. Background Art

[0002] Steel pipe is a hollow cylindrical profile made of stainless steel as the main material. It is used in various fields. In the automotive field, it is often used as the main material for exhaust pipes. During the manufacturing process of exhaust pipes, the steel pipe needs to be bent, which requires the use of a bending device.

[0003] However, when the existing bending device is in use, a fixing piece is used to fix one end of the steel pipe, and the fixing piece is rotated so that the steel pipe is bent under the restriction of the limiting wheel to realize the bending process. During the bending process, the steel pipe can only be bent once each time, and the steel pipe cannot be bent multiple times in one bending time, resulting in slow bending efficiency. Utility Model Content

[0004] The utility model aims to solve the problem that the existing bending device cannot perform multiple bends on the steel pipe in one bending time, resulting in slow bending efficiency.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A steel pipe continuous bending device, comprising:

[0007] Bending table;

[0008] A steel pipe conveying assembly is arranged above the bending workbench and is used for conveying the steel pipe;

[0009] A bending device is arranged at one end of the steel pipe away from the steel pipe conveying assembly, and is used to bend the steel pipe multiple times; the bending device comprises: two groups of first fixing assemblies and two groups of second fixing assemblies, both of which are tightly fitted with the steel pipe and are used to clamp and fix the steel pipe;

[0010] An adjusting device is fixedly connected to the bending device and is used to adjust the distance between the first fixing component and the second fixing component.

[0011] Preferably, the bending device further comprises:

[0012] A movable plate, wherein a first arc-shaped groove is formed on the surface of the movable plate, and an upper end surface of the movable plate is fixedly connected to a bottom end of the second fixing assembly;

[0013] A second limiting wheel, wherein a first supporting rod is disposed at a bottom end of the second limiting wheel, and the first supporting rod is located in the first arc-shaped groove, and the first supporting rod is slidably connected to the movable plate through the first arc-shaped groove;

[0014] A first motor, wherein an output end of the first motor is fixedly connected to one end of the movable plate, and is used to drive the movable plate to rotate;

[0015] A fixed plate, arranged at the other end of the movable plate;

[0016] A telescopic assembly, two ends of which are fixedly connected to the movable plate and the fixed plate respectively;

[0017] A rotating plate, one end of which is rotatably connected to an end of the fixed plate away from the movable plate; a second arc-shaped groove is provided on the surface of the rotating plate; and the upper end surface of the rotating plate is fixedly connected to the bottom end of the first fixed assembly;

[0018] A spur gear, the spur gear is coaxially arranged with one end of the rotating plate close to the fixed plate;

[0019] A rack meshingly connected with the spur gear;

[0020] A first electric push rod, wherein the output end of the first electric push rod is fixedly connected to the rack; and the surface of the first electric push rod is fixedly connected to the fixing plate;

[0021] A first limiting wheel, a second support rod is arranged at the bottom end of the first limiting wheel, and the second support rod is located in the second arc groove, and the second support rod is slidingly connected to the rotating plate through the second arc groove; the bottom end of the second support rod is fixedly connected to the fixed plate.

[0022] Preferably, the telescopic assembly comprises:

[0023] A limiting plate, one end of which extends into the interior of the movable plate and is slidably connected to the movable plate; a plurality of first grooves are formed on the surface of the limiting plate;

[0024] A plurality of groups of bayonet pins are arranged in the plurality of groups of the first grooves correspondingly, and a second groove is opened at the inner wall position of the plurality of groups of bayonet pins corresponding to the movable plate, so that the bayonet pins can enter the second grooves;

[0025] The electromagnet is arranged above the movable plate, and the electromagnet can attract the latch to move upward.

[0026] Preferably, the depth of the first groove is twice the depth of the second groove.

[0027] Preferably, the adjusting device comprises:

[0028] Worm,

[0029] a third motor, wherein an output end of the third motor is fixedly connected to one end of the worm;

[0030] A worm wheel is disposed below the worm and meshedly connected with the worm;

[0031] A rotating groove plate, the rotation center of which is fixedly connected to the axis of the worm gear; a slideway is provided on the surface of the rotating groove plate;

[0032] The movable part is composed of a cross bar, a cylindrical pin and two groups of vertical rods. The lower end surface of the cross bar is fixedly connected to the top ends of the two groups of vertical rods, and the bottom ends of the two groups of vertical rods are slidably connected to the bending workbench; the upper end surface of the cross bar is fixedly connected to the bottom end of the first support rod; one end of the cross bar is fixedly connected to the surface of the first motor; the other end of the cross bar is fixedly connected to the cylindrical pin, and the cylindrical pin is arranged in the slideway and is slidably connected to the rotating groove plate through the slideway.

[0033] Preferably, the steel pipe conveying assembly comprises:

[0034] Supports;

[0035] a second electric push rod, wherein an output end of the second electric push rod is fixedly connected to the support member;

[0036] A steel pipe fixing member, which passes through a corresponding position of the support member and is rotatably connected to the support member, and one end of the steel pipe fixing member extends into the interior of the steel pipe;

[0037] A second motor, wherein an output end of the second motor is fixedly connected to the other end of the steel pipe fixing member.

[0038] Preferably, a notch is provided on the lower end surface of the rotating plate.

[0039] Preferably, it further comprises: a clamping device; the clamping device is arranged below the rotating plate and is used to limit the movement of the rotating plate.

[0040] Preferably, the clamping device comprises:

[0041] A limiter, composed of a horizontal plate and a clamping block, one end of the horizontal plate is fixedly connected to the clamping block, and the clamping block is arranged just below the notch so that the clamping block can extend into the notch;

[0042] A threaded rod, passing through a corresponding position of the limiting member and being threadedly connected to the limiting member;

[0043] A hand wheel, the top end of the hand wheel is fixedly connected to the bottom end of the threaded rod.

[0044] Preferably, each group of the first fixing components and each group of the second fixing components are composed of a fixing piece and a pneumatic cylinder, and an output end of the pneumatic cylinder is fixedly connected to the fixing piece.

[0045] The beneficial effect proposed by the utility model is that by operating the bending device, the bending device can perform a second bending on the steel pipe at the same time, thereby increasing the number of bending times, achieving multiple bending of the steel pipe in the time of one bending, and improving the bending efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the structure of the utility model;

[0047] Figure 2 for Figure 1 Schematic diagram of the cross-section plane at the midline DD;

[0048] Figure 3 for Figure 2 A schematic diagram of the top view of the middle part connection structure;

[0049] Figure 4 for Figure 2 A schematic diagram of the middle part of the connecting structure viewed from above;

[0050] Figure 5 for Figure 2 Schematic diagram of the connection structure at A in the middle;

[0051] Figure 6 for Figure 2 Schematic diagram of the connection structure at B in the middle;

[0052] Figure 7 for Figure 2 Schematic diagram of the connection structure at point C in the middle.

[0053] In the figure: 1. bending workbench, 2. steel pipe, 3. first motor, 4. moving plate, 5. limit plate, 6. latch, 7. electromagnet, 8. fixed plate, 9. spur gear, 10. rack, 11. first electric push rod, 12. rotating plate, 13. first limit wheel, 14. first fixed assembly, 15. second fixed assembly, 16. second limit wheel, 17. support member, 18. second electric push rod, 19. steel pipe fixing member, 20. second motor, 21. worm, 22. third motor, 23. worm wheel, 24. rotating slot plate, 25. moving member, 26. threaded rod, 27. hand wheel, 28. limit member. DETAILED DESCRIPTION

[0054] The utility model is further described below in conjunction with the accompanying drawings: Example

[0055] See also Figure 1-7 In this embodiment: a steel pipe continuous bending device includes: a bending workbench 1, a steel pipe conveying component, a bending device and an adjusting device.

[0056] In this embodiment, the steel pipe conveying assembly is arranged above the bending workbench 1 for conveying the steel pipe 2 .

[0057] In this embodiment, a strip-shaped slide groove and a square opening are opened in advance on the top of the bending workbench 1.

[0058] The bending device is arranged at one end of the steel pipe 2 away from the steel pipe conveying assembly, and is used to bend the steel pipe 2 multiple times; the bending device includes: two groups of first fixing components 14 and two groups of second fixing components 15, which are tightly fitted with the steel pipe 2 and are used to clamp and fix the steel pipe 2.

[0059] In this embodiment, the steel pipe 2 is bent twice by utilizing the rotation of the first fixing assembly 14 and the second fixing assembly 15 .

[0060] The adjusting device is fixedly connected to the bending device, and is used to adjust the distance between the first fixing component 14 and the second fixing component 15. The first fixing component 14 and the second fixing component 15 are specifically adjusted according to the required bending distance.

[0061] like Figure 2 , Figure 3 and Figure 4 As shown, the bending device also includes: a moving plate 4, a second limiting wheel 16, a first motor 3, a fixed plate 8, a telescopic assembly, a rotating plate 12, a spur gear 9, a rack 10, a first electric push rod 11 and a first limiting wheel 13.

[0062] In this embodiment, a first arc-shaped groove is provided on the surface of the movable plate 4, and the upper end surface of the movable plate 4 is fixedly connected to the bottom end of the second fixed component 15; a first support rod is provided at the bottom end of the second limiting wheel 16, and the first support rod is located in the first arc-shaped groove, and the first support rod is slidably connected to the movable plate 4 through the first arc-shaped groove.

[0063] In this embodiment, when the movable plate 4 rotates, the first arc groove is driven to rotate, so that the second limiting wheel 16 does not hinder the rotation of the movable plate 4 .

[0064] The output end of the first motor 3 is fixedly connected to one end of the moving plate 4 to drive the moving plate 4 to rotate.

[0065] In this embodiment, the output end of the first motor 3 drives the movable plate 4 to rotate. The model of the first motor 3 is selected according to actual needs as long as it meets the working conditions.

[0066] The fixed plate 8 is arranged at the other end of the movable plate 4; the two ends of the telescopic assembly are fixedly connected to the movable plate 4 and the fixed plate 8 respectively.

[0067] In this embodiment, the distance between the first fixing component 14 and the second fixing component 15 is adjusted by extending and contracting the telescopic component; and when the movable plate 4 rotates, the telescopic component can drive the fixed plate 8 to rotate.

[0068] One end of the rotating plate 12 is rotatably connected to an end of the fixed plate 8 away from the movable plate 4 .

[0069] In this embodiment, when the fixed plate 8 rotates, it can drive the rotating plate 12 to rotate along with it, and at the same time, the rotating plate 12 can also rotate on its own with the support of the fixed plate 8.

[0070] A second arc groove is provided on the surface of the rotating plate 12; the upper end surface of the rotating plate 12 is fixedly connected to the bottom end of the first fixed component 14; the spur gear 9 is coaxially arranged with one end of the rotating plate 12 close to the fixed plate 8; the rack 10 is meshed with the spur gear 9; the output end of the first electric push rod 11 is fixedly connected to the rack 10; the surface of the first electric push rod 11 is fixedly connected to the fixed plate 8.

[0071] In this embodiment, by adjusting the first electric push rod 11, the output end of the first electric push rod 11 is extended and retracted, thereby pushing the rack 10 to move, and the rack 10 causes the spur gear 9 to rotate, and the spur gear 9 drives the rotating plate 12 to rotate at the same time.

[0072] A second support rod is provided at the bottom end of the first limiting wheel 13 , and the second support rod is located in the second arc groove. The second support rod is slidably connected to the rotating plate 12 through the second arc groove; the bottom end of the second support rod is fixedly connected to the fixed plate 8 .

[0073] In this embodiment, when the fixed plate 8 rotates, it will drive the first limiting wheel 13 to rotate, and when the rotating plate 12 rotates, the first limiting wheel 13 will slide in the second arc groove and will not hinder the rotation of the rotating plate 12.

[0074] Specifically, when the steel pipe 2 needs to be bent, one end of the steel pipe 2 is first moved between the two groups of first fixing components 14; at this time, the steel pipe 2 is fixed by the first fixing component 14 and the second fixing component 15; then the first motor 3 is started, and the output end of the first motor 3 drives the movable plate 4 to rotate; the movable plate 4 will drive the fixed plate 8 to rotate through the telescopic component; at the same time, the movable plate 4 drives the second fixing component 15 to rotate, and because the second limiting wheel 16 will not rotate, the steel pipe 2 is bent for the first time; after that, the fixed plate 8 will simultaneously drive the rotating plate 12 and the first limiting wheel 13 to revolve. , the rotating plate 12 drives the first fixed component 14 to revolve synchronously; in this process, the first electric push rod 11 is adjusted to make the output end of the first electric push rod 11 extend and retract, thereby pushing the rack 10 to move; the rack 10 will cause the spur gear 9 to rotate, and the spur gear 9 will drive the rotating plate 12 to rotate at the same time, and the rotation direction of the rotating plate 12 is opposite to that of the fixed plate 8; at the same time, the rotating plate 12 drives the first fixed component 14 to rotate, and the first limiting wheel 13 will not rotate at this time, thereby performing a second bending on the steel pipe 2; multiple bending of the steel pipe is achieved in the time of one bending, thereby improving the bending efficiency.

[0075] like Figure 2 and Figure 5 As shown, the telescopic assembly includes: a limit plate 5, a plurality of groups of latches 6 and an electromagnet 7.

[0076] Specifically, one end of the limit plate 5 extends to the interior of the movable plate 4 and is slidably connected to the movable plate 4. The limit plate 5 can move horizontally along the inner wall of the movable plate 4; a plurality of groups of first grooves are provided on the surface of the limit plate 5; a plurality of groups of bayonet pins 6 are correspondingly arranged in the plurality of groups of first grooves, and a plurality of groups of bayonet pins 6 are corresponding to the inner wall positions of the movable plate 4. Second grooves are provided so that the bayonet pins 6 can enter the second grooves; an electromagnet 7 is arranged above the movable plate 4. The electromagnet 7 can attract the bayonet pins 6 to move upward. The model of the electromagnet 7 is selected according to actual needs and can meet the working conditions.

[0077] The depth of the first groove is twice the depth of the second groove.

[0078] Specifically, after the electromagnet 7 is energized, the pin 6 located below the electromagnet 7 will be attracted, causing the pin 6 to move upward, and the pin 6 will be inserted into the corresponding second groove. Since the depth of the first groove is twice the depth of the second groove, half of the length of the pin 6 will be located in the first groove at this time, thereby preventing the limit plate 5 from moving.

[0079] like Figure 2 and Figure 6 As shown, the adjusting device includes: a worm 21, a third motor 22, a worm wheel 23, a rotating slot plate 24 and a moving member 25.

[0080] Among them, the output end of the third motor 22 is fixedly connected to one end of the worm 21. The model of the third motor 22 is selected according to actual needs and meets the working conditions; the worm wheel 23 is arranged below the worm 21 and meshingly connected with the worm 21.

[0081] In this embodiment, the output end of the third motor 22 drives the worm 21 to rotate, and the worm 21 drives the worm wheel 23 to rotate slowly at the same time.

[0082] The rotation center of the rotating groove plate 24 is fixedly connected to the axis of the worm gear 23; a slideway is provided on the surface of the rotating groove plate 24, and when the rotating groove plate 24 rotates, the slideway will be driven to rotate; the moving part 25 is composed of a cross bar, a cylindrical pin and two groups of vertical bars, the lower end surface of the cross bar is fixedly connected to the top ends of the two groups of vertical bars, and the bottom ends of the two groups of vertical bars are slidably connected to the bending workbench 1; the upper end surface of the cross bar is fixedly connected to the bottom end of the first support rod; one end of the cross bar is fixedly connected to the surface of the first motor 3; the other end of the cross bar is fixedly connected to the cylindrical pin, the cylindrical pin is arranged in the slideway, and is slidably connected to the rotating groove plate 24 through the slideway.

[0083] Specifically, when adjustment is needed, the third motor 22 is started, and the output end of the third motor 22 drives the worm 21 to rotate; the worm 21 drives the worm wheel 23 to rotate slowly; the worm wheel 23 simultaneously drives the rotating slot plate 24 to rotate; the rotating slot plate 24 slides between the cylindrical pin and the slideway, causing the moving part 25 to move horizontally, and the moving part 25 simultaneously pushes the first motor 3 and the first support rod to move, thereby changing the distance between the first fixed component 14 and the second fixed component 15.

[0084] like Figure 2 As shown, the steel pipe conveying assembly includes: a support member 17, a second electric push rod 18, a steel pipe fixing member 19 and a second motor 20.

[0085] Specifically, the output end of the second electric push rod 18 is fixedly connected to the support member 17, and the output end of the second electric push rod 18 pushes the support member 17 to move horizontally; the steel pipe fixing member 19 passes through the corresponding position of the support member 17 and is rotatably connected to the support member 17, and one end of the steel pipe fixing member 19 extends to the interior of the steel pipe 2.

[0086] In this embodiment, the support member 17 can support the rotation of the steel pipe fixing member 19. The steel pipe fixing member 19 is an internal expansion fixing structure, which is a common structure on the market and is therefore a prior art, and will not be described in detail here.

[0087] The output end of the second motor 20 is fixedly connected to the other end of the steel pipe fixing part 19. The output end of the second motor 20 can drive the steel pipe fixing part 19 to rotate. The model of the second motor 20 can be determined according to actual needs and meet the working conditions.

[0088] During transportation, the second electric push rod 18 is adjusted, and the output end of the second electric push rod 18 pulls the support member 17 to move horizontally. The support member 17 pushes the steel pipe 2 to move through the steel pipe fixing member 19, so that the steel pipe 2 can be bent at any position.

[0089] The lower end surface of the rotating plate 12 is provided with a notch.

[0090] When adjusting the distance between the first fixing component 14 and the second fixing component 15 , since the first fixing component 14 is not restricted, it is easy to follow the movement of the second fixing component 15 during adjustment, resulting in failure to achieve the adjustment effect.

[0091] In order to solve the above problem, this embodiment proposes an implementation method, the steel pipe continuous bending device also includes: a clamping device; the clamping device is arranged below the rotating plate 12 to limit the movement of the rotating plate 12.

[0092] In this embodiment, Figure 2 and 7 As shown, the clamping device includes: a limiting member 28, a threaded rod 26 and a hand wheel 27.

[0093] The limiting member 28 is composed of a transverse plate and a clamping block. One end of the transverse plate is fixedly connected to the clamping block. The clamping block is arranged directly below the notch so that the clamping block can extend into the notch.

[0094] In this embodiment, the block is inserted into the notch of the rotating plate 12 to limit the movement of the rotating plate 12 , thereby limiting the movement of the first fixing component 14 .

[0095] The threaded rod 26 passes through the corresponding position of the limiting member 28 and is threadedly connected to the limiting member 28; the top end of the hand wheel 27 is fixedly connected to the bottom end of the threaded rod 26, and the hand wheel 27 can drive the threaded rod 26 to rotate.

[0096] When in use, the user drives the threaded rod 26 to rotate by turning the hand wheel 27, and the threaded rod 26 will cause the limit member 28 to move vertically upward. The block in the limit member 28 will be inserted into the notch of the rotating plate 12, thereby limiting the movement of the rotating plate 12, and then limiting the movement of the first fixed component 14, preventing the first fixed component 14 from following the movement of the second fixed component 15.

[0097] Each group of the first fixing components 14 and each group of the second fixing components 15 are composed of a fixing piece and a pneumatic cylinder, and the output end of the pneumatic cylinder is fixedly connected to the fixing piece.

[0098] Working principle:

[0099] When the steel pipe continuous bending device is in use, one end of the steel pipe 2 is first put on the steel pipe fixing piece 19, and the steel pipe 2 is fixed by the steel pipe fixing piece 19; then the second electric push rod 18 is adjusted, and the output end of the second electric push rod 18 pulls the support piece 17 to move horizontally; the support piece 17 pushes the steel pipe 2 to move through the steel pipe fixing piece 19, so that the steel pipe 2 can be bent at any position.

[0100] The other end of the steel pipe 2 stops after moving between the two groups of first fixing components 14; then the user rotates the hand wheel 27 to drive the threaded rod 26 to rotate, and the threaded rod 26 will cause the limiter 28 to move vertically upward, and the block in the limiter 28 will be inserted into the notch of the rotating plate 12, thereby limiting the movement of the rotating plate 12, and then limiting the movement of the first fixing component 14, preventing the first fixing component 14 from following the movement of the second fixing component 15.

[0101] Then, the position of the second fixed component 15 is adjusted according to the required bending position; the third motor 22 is started, and the output end of the third motor 22 drives the worm 21 to rotate; the worm 21 drives the worm wheel 23 to rotate slowly; the worm wheel 23 also drives the rotating slot plate 24 to rotate; the rotating slot plate 24 slides between the cylindrical pin and the slideway, causing the moving part 25 to move horizontally; the moving part 25 simultaneously pushes the first motor 3 and the first support rod to move; thereby changing the distance between the first fixed component 14 and the second fixed component 15.

[0102] Subsequently, the electromagnet 7 is energized to attract the latch 6 located below the electromagnet 7, causing the latch 6 to move upward and be inserted into the corresponding second groove. Since the depth of the first groove is twice that of the second groove, half of the length of the latch 6 is located in the first groove, thereby preventing the limit plate 5 from moving.

[0103] When the steel pipe 2 needs to be bent, the steel pipe 2 is fixed by the first fixing assembly 14 and the second fixing assembly 15; then the first motor 3 is started, and the output end of the first motor 3 drives the movable plate 4 to rotate; the movable plate 4 drives the fixed plate 8 to rotate through the telescopic assembly; at the same time, the movable plate 4 drives the second fixing assembly 15 to rotate, and because the second limiting wheel 16 does not rotate, the steel pipe 2 is bent for the first time; thereafter, the fixed plate 8 drives the rotating plate 12 and the first limiting wheel 13 to revolve simultaneously, and the rotating plate 12 drives the first fixing assembly 14 to revolve synchronously ; During this process, the first electric push rod 11 is adjusted so that the output end of the first electric push rod 11 is extended and retracted, thereby pushing the rack 10 to move; the rack 10 causes the spur gear 9 to rotate, and the spur gear 9 simultaneously drives the rotating plate 12 to rotate, and the rotation direction of the rotating plate 12 is opposite to that of the fixed plate 8; at the same time, the rotating plate 12 drives the first fixed component 14 to rotate, and the first limiting wheel 13 at this time does not rotate, thereby performing a second bending on the steel pipe 2; achieving multiple bending of the steel pipe in the time of one bending, thereby improving the bending efficiency and completing the use of this device.

[0104] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A steel pipe continuous bending device, characterized in that: include: Bending table (1); A steel pipe conveying assembly, arranged above the bending workbench (1) and used for conveying the steel pipe (2); A bending device is arranged at one end of the steel pipe (2) away from the steel pipe conveying assembly, and is used to perform multiple bends on the steel pipe (2); the bending device comprises: two groups of first fixing assemblies (14) and two groups of second fixing assemblies (15), each of which is tightly fitted with the steel pipe (2) and is used to clamp and fix the steel pipe (2); An adjusting device, fixedly connected to the bending device, and used for adjusting the distance between the first fixing component (14) and the second fixing component (15).

2. The steel pipe continuous bending device according to claim 1, characterized in that: The bending device also includes: A movable plate (4), wherein a first arc-shaped groove is provided on the surface of the movable plate (4), and the upper end surface of the movable plate (4) is fixedly connected to the bottom end of the second fixing component (15); a second limiting wheel (16), wherein a first support rod is provided at the bottom end of the second limiting wheel (16), and the first support rod is located in the first arc-shaped groove, and the first support rod is slidably connected to the movable plate (4) via the first arc-shaped groove; a first motor (3), wherein an output end of the first motor (3) is fixedly connected to one end of the movable plate (4) and is used to drive the movable plate (4) to rotate; A fixed plate (8) arranged at the other end of the movable plate (4); A telescopic component, two ends of which are fixedly connected to the movable plate (4) and the fixed plate (8) respectively; a rotating plate (12), one end of the rotating plate (12) being rotatably connected to an end of the fixed plate (8) away from the movable plate (4); a second arc-shaped groove penetrating therethrough is provided on the surface of the rotating plate (12); an upper end surface of the rotating plate (12) is fixedly connected to a bottom end of the first fixed component (14); a spur gear (9), the spur gear (9) being coaxially arranged with one end of the rotating plate (12) close to the fixed plate (8); A rack (10) meshingly connected to the spur gear (9); A first electric push rod (11), wherein an output end of the first electric push rod (11) is fixedly connected to the rack (10); and a surface of the first electric push rod (11) is fixedly connected to the fixing plate (8); A first limiting wheel (13), wherein a second support rod is arranged at the bottom end of the first limiting wheel (13), and the second support rod is located in the second arc-shaped groove, and the second support rod is slidably connected to the rotating plate (12) via the second arc-shaped groove; and the bottom end of the second support rod is fixedly connected to the fixed plate (8).

3. The steel pipe continuous bending device according to claim 2, characterized in that: The telescopic assembly comprises: a limiting plate (5), one end of the limiting plate (5) extending into the interior of the movable plate (4) and being slidably connected to the movable plate (4); a plurality of groups of first grooves are formed on the surface of the limiting plate (5); A plurality of groups of bayonet pins (6) are arranged in the plurality of groups of the first grooves correspondingly, and a second groove is opened at the inner wall position of the plurality of groups of bayonet pins (6) corresponding to the movable plate (4), so that the bayonet pins (6) can enter the second groove; An electromagnet (7) is arranged above the movable plate (4), and the electromagnet (7) is capable of attracting the latch (6) to move upward.

4. The steel pipe continuous bending device according to claim 3, characterized in that: The depth of the first groove is twice the depth of the second groove.

5. The steel pipe continuous bending device according to claim 2, characterized in that: The regulating device comprises: Worm (21), a third motor (22), wherein an output end of the third motor (22) is fixedly connected to one end of the worm (21); A worm wheel (23) is disposed below the worm (21) and meshedly connected with the worm (21); A rotating groove plate (24), wherein the rotation center of the rotating groove plate (24) is fixedly connected to the axis of the worm wheel (23); a slideway is provided on the surface of the rotating groove plate (24); The movable member (25) is composed of a cross bar, a cylindrical pin and two groups of vertical bars, wherein the lower end surface of the cross bar is fixedly connected to the top ends of the two groups of vertical bars, and the bottom ends of the two groups of vertical bars are slidably connected to the bending workbench (1); the upper end surface of the cross bar is fixedly connected to the bottom end of the first support bar; one end of the cross bar is fixedly connected to the surface of the first motor (3); the other end of the cross bar is fixedly connected to the cylindrical pin, and the cylindrical pin is arranged in the slideway and is slidably connected to the rotating groove plate (24) through the slideway.

6. The steel pipe continuous bending device according to claim 1, characterized in that: The steel pipe conveying assembly comprises: Support member (17); a second electric push rod (18), wherein an output end of the second electric push rod (18) is fixedly connected to the support member (17); a steel pipe fixing member (19) which passes through a corresponding position of the support member (17) and is rotatably connected to the support member (17); one end of the steel pipe fixing member (19) extends into the interior of the steel pipe (2); A second motor (20), wherein an output end of the second motor (20) is fixedly connected to the other end of the steel pipe fixing member (19).

7. The steel pipe continuous bending device according to claim 2, characterized in that: The lower end surface of the rotating plate (12) is provided with a notch.

8. The steel pipe continuous bending device according to claim 7, characterized in that: Also includes: A clamping device; the clamping device is arranged below the rotating plate (12) and is used to limit the movement of the rotating plate (12).

9. The steel pipe continuous bending device according to claim 8, characterized in that: The clamping device comprises: A limiter (28) is composed of a horizontal plate and a clamping block, one end of the horizontal plate is fixedly connected to the clamping block, and the clamping block is arranged directly below the notch so that the clamping block can extend into the notch; A threaded rod (26) passes through a corresponding position of the limiting member (28) and is threadedly connected to the limiting member (28); A hand wheel (27), wherein the top end of the hand wheel (27) is fixedly connected to the bottom end of the threaded rod (26).

10. The steel pipe continuous bending device according to claim 1, characterized in that: Each group of the first fixing components (14) and each group of the second fixing components (15) are composed of a fixing piece and a pneumatic cylinder, and an output end of the pneumatic cylinder is fixedly connected to the fixing piece.

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