A bending steel pipe butt joint device and its usage method

Abstract

The present invention discloses a bending steel pipe docking device, which relates to the technical field of mechanical processing. In this application, the bending steel pipe docking device includes: a machine body is arranged on a plane; a conveying device is arranged above the machine body, and a steel pipe is arranged inside the conveying device; a bending device is arranged on one side of the machine body, and the bending device and the conveying device are concentric. The bending device includes: a bending column is arranged on one side of the conveying device, the outer circumference of the bending column is concentric with the conveying device, and a semi-circular groove is arranged on the outer circumference of the bending column; a docking device is arranged on one side of the bending device, and the docking device and the bending device are concentric. The docking device includes: a fixing plate is arranged on one side of the conveying device; a docking block is arranged above the steel pipe; an auxiliary device is arranged on one side of the docking device. The present invention is used to solve the problem that in the prior art, when the steel pipes are docked after being bent, it is impossible to effectively maintain the docking consistency, resulting in a large difference in the docking position and affecting the normal use of the steel pipes.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and particularly to a bending steel pipe butt joint device and a using method thereof. Background Art

[0002] Steel pipes are commonly used load-bearing members, which have the advantages of light weight and high strength, and thus are widely used in engineering construction.

[0003] After the steel pipe is formed, it is necessary to bend the steel pipe. Bending of steel pipes is a common processing section in industrial processing. In the existing steel pipe bending, the output power of the output end of the air cylinder is usually directly used to press and bend the steel pipe to complete the bending of the steel pipe. This bending structure is troublesome to use. Moreover, after the steel pipe is bent and butt-jointed, the bent steel pipe needs to be removed. When the bent steel pipe is removed, due to its resilience, the steel pipe will have a certain amount of retraction. And this retraction will cause deviation during the butt joint of the steel pipe, and manual correction is required. However, manual correction cannot ensure the alignment consistency of the steel pipe, which will cause differences in individual positions of the steel pipe, resulting in inconvenient butt joint, low overall butt joint automation degree, and excessive manual labor intensity. Summary of the Invention

[0004] The purpose of the present invention is to provide a bending steel pipe butt joint device, which is used to solve the problem that in the prior art, when the steel pipe is butt-jointed after bending, the butt joint consistency cannot be effectively maintained, resulting in large differences in the butt joint position and affecting the normal use of the steel pipe.

[0005] To achieve the above object, the embodiments of the present application adopt the following technical solutions: A bending steel pipe docking device, comprising: a machine body, which is arranged on a plane; a conveying device, which is arranged above the machine body, the conveying device is fixedly connected to the machine body, a steel pipe is arranged inside the conveying device, and the conveying device is used to push the steel pipe to move; a bending device, which is arranged on one side of the machine body, the bending device is fixedly connected to the machine body, the bending device and the conveying device are concentric, and the bending device is used to bend the steel pipe. The bending device includes: a bending column, which is arranged on one side of the conveying device, the bending column is fixedly connected to the machine body, the outer circumference of the bending column and the conveying device are concentric, a semi-circular groove is arranged on the outer circumference of the bending column, and the semi-circular groove of the bending column and the conveying device are concentric; a docking device, which is arranged on one side of the bending device, the docking device is fixedly connected to the bending device, the docking device and the bending device are concentric, and the docking device is used for docking and assembling the steel pipe. The docking device includes: a fixing plate, which is arranged on one side of the conveying device, the fixing plate is attached to the steel pipe, and the fixing plate is arranged on the outer surface of the steel pipe; a docking block, which is arranged above the steel pipe, there is a gap between the docking block and the steel pipe, and the docking block is used to fix the steel pipe for docking; an auxiliary device, which is arranged on one side of the docking device, the auxiliary device is fixedly connected to the docking device, and the auxiliary device is used to protect the bending of the steel pipe.

[0006] In the above technical solution, the present application adopts a conveying device, a bending device, a docking device, and an auxiliary device. When bending the steel pipe, the operator places the steel pipe into the conveying device, and the conveying device automatically moves the steel pipe towards the bending device and the docking device, reducing the operation of manually positioning the steel pipe. After the steel pipe reaches the designated position of the docking device, the docking device fixes the steel pipe. At the same time, the operator cooperates the positioning block with the bending column, and then uses the limiting rod to fix the positioning block. The preliminary fixing by the operator can prevent the situation that the bending column and the positioning block do not fix the steel pipe. And by fixing the other end of the steel pipe through the docking device, it can prevent the excess part from shaking during the bending process of the steel pipe, thus affecting the bending effect of the steel pipe. And by fixing the steel pipe through the docking device, it can prevent the steel pipe from shifting in position when docking the two steel pipes after bending, which may otherwise require manual adjustment. Manual adjustment will inevitably lead to differences in the docking of the steel pipes and unable to maintain a high alignment degree, thus affecting the docking firmness. By keeping the original position of the steel pipe during docking through the docking device, the position difference between the two steel pipes is reduced, improving the docking accuracy.

[0007] Furthermore, in the embodiment of the present invention, the conveying device is a roller conveyor. The steel pipe is placed inside the conveying device and moves towards the bending device. The outlet of the conveying device and the semi-circular groove of the bending column are concentric, and there is a spacing between the bending column and the conveying device.

[0008] Furthermore, in the embodiment of the present invention, the bending device includes: a positioning block, which is arranged on the outer periphery of the bending column, is movably connected to the bending column, and has through holes on its surface; a limiting rod, which is arranged inside the positioning block and passes through the through holes of the positioning block; an outer cover, which is arranged on one side of the conveying device, is fixedly connected to the machine body, is arranged below the bending column, and has a rotating motor inside. The rotating motor controls the docking device and the auxiliary device to move along with the bending device.

[0009] Furthermore, in the embodiment of the present invention, the docking device includes: a housing, which is arranged on the upper surface of the auxiliary device, is fixedly connected to the auxiliary device, is hollow inside, and has through holes on its opposite sides; an outer wheel, which is arranged inside the housing, is fixedly connected to the housing, and is concentric with the steel pipe; a driving motor, which is arranged above the outer wheel and is meshed with the outer periphery of the outer wheel. The driving motor controls the rotation of the outer wheel; a connecting rod, which is arranged on the outer surface of the outer wheel, and one end of the connecting rod is movably connected to the surface of the outer wheel; an inner wheel, which is arranged inside the outer wheel, is concentric with the outer wheel, and has a groove on its outer periphery. The groove of the inner wheel is used to connect the other end of the connection; a fixed wheel, which is arranged on one side of the outer wheel, is movably connected to the housing, and is concentric with the inner wheel; a docking block, which is arranged on the outer surface of the fixed wheel and does not contact the steel pipe; a control motor, which is arranged inside the housing and above the fixed wheel; a connecting belt, which is arranged between the control motor and the fixed wheel. One end of the connecting belt is connected to the control motor, and the other end of the connecting belt is connected to the fixed wheel; a fixing plate, which is arranged on the surface of the inner wheel, is movably connected to the inner wheel, and is fitted with the outer periphery of the steel pipe.

[0010] Furthermore, in the embodiment of the present invention, the auxiliary device includes: a support plate, which is arranged outside the bending column, is cooperatively connected to the bending column, and has the docking device and the auxiliary device above it. The support plate rotates simultaneously with the bending column; a telescopic motor, which is arranged on the upper surface of the support plate, is movably connected to the support plate, and is concentric with the steel pipe.

[0011] Further, in the embodiment of the present invention, the interior of the outer wheel is a through hole, and a chute is provided on the inner wall surface of the outer wheel. The chute of the outer wheel is connected to the inner wheel in a matching manner; the inner wheel does not directly contact the outer wheel, and a support plate is provided on the surface of the inner wheel. The inner wheel is fixedly connected to the housing through the support plate, and the inner wheel supports the outer wheel to rotate around the outer circumference of the inner wheel.

[0012] Further, in the embodiment of the present invention, there are a plurality of fixing plates. The plurality of fixing plates form a complete circle, and the inner wall surfaces of the plurality of fixing plates are attached to the outer circumference of the steel pipe. The fixing plates are driven to be fixed by driving the connecting rod through the outer wheel.

[0013] Further, in the embodiment of the present invention, the docking block is driven by the control motor to drive the fixed wheel to rotate around the outer circumference of the steel pipe, and the docking block follows the rotation of the fixed wheel.

[0014] Further, in the embodiment of the present invention, a groove is provided on the surface of the support plate. The groove of the support plate is used for the telescopic motor to move, and one end of the telescopic motor extends into the inner wall of the steel pipe for filling.

[0015] The embodiment of the present invention also discloses a method for using a bending steel pipe docking device, including the following steps:

[0016] Start the conveying device, place the steel pipe to be processed inside the conveying device, drive the steel pipe to move towards the bending device through the conveying device. After the steel pipe passes through the semi-circular groove of the bending column and continues to move, the steel pipe moves towards the docking device and stops moving after moving into the docking device;

[0017] Adjust the positioning block to make the positioning block fit the semi-circular groove of the bending column, completely surround the outer circumference of the steel pipe through the positioning block and the bending column, and pass the limiting rod through the through hole of the positioning block to connect with the support plate;

[0018] Start the docking device, drive the outer wheel to rotate a certain angle by the driving motor. While the outer wheel rotates, it drives the connecting rod to move. Drive the fixing plate to rotate and approach the steel pipe through the connecting rod. The inner wall surface of the fixing plate fits the outer circumference of the steel pipe, and the plurality of fixing plates clamp and fix the steel pipe. The inner wheel remains stationary while the outer wheel rotates;

[0019] Bend the steel pipe. After the docking device and the positioning block are fixed, the bending column starts to rotate. While the bending column rotates, the support plate, the telescopic motor, and the docking device rotate following the bending column;

[0020] Steel pipe butt joint. After the steel pipe bending is completed, the butt joint device continues to hold the steel pipe fixed. Another steel pipe is inserted from the other side of the outer shell of the butt joint device. The other steel pipe passes through the outer shell and enters the interior of the outer wheel. Another drive motor is started to drive the other outer wheel to rotate, thereby driving another set of fixing plates to move and fix to the outer surface of the other steel pipe. When the opposite surfaces of the two steel pipes are in contact, the two sets of outer wheels, inner wheels, fixing plates, and connecting rods remain fixed;

[0021] Joint surface winding. After the opposite surfaces of the two steel pipes are in contact, the control motor is started. The control motor drives the connecting belt, causing the driven wheel connected to the connecting belt to drive the fixed wheel to rotate. The fixed wheel rotates around the center of the outer wheel. The butt joint blocks on the outer surface of the fixed wheel rotate around the joint surface of the two steel pipes. The winding material of the butt joint blocks covers the joint surface of the two steel pipes for butt joint fixation;

[0022] Fixing plate reset. After the butt joint fixation of the two steel pipes is completed, the fixing plate releases the fixation of the steel pipe. The limit rod disengages from the support plate, causing the positioning block to separate from the bending column. The steel pipe is taken out, and a new steel pipe is placed to repeat the above steps.

[0023] The beneficial effects of the present invention are as follows: First, the bending steel pipe docking device of the present invention effectively maintains the docking consistency during the docking of the bent steel pipe, thereby improving the stability after the steel pipe docking and reducing the differences generated by the steel pipe docking. First, through the bending device and the docking device, after the steel pipe reaches the bending device through the conveying device, it continues to move towards the docking device. After reaching the designated position of the docking device, the steel pipe stops moving. The positioning block of the bending device moves on the pallet towards the semi-circular groove of the bending column. The outer circumference of the steel pipe is fixed by the fitting of the positioning block and the bending column. After the positioning block reaches the fixed position, the limiting rod passes through the through hole of the positioning block and inserts into the interior of the pallet to fix the steel pipe. The fixation formed by the limiting rod and the positioning block reduces the risk that the steel pipe is not fully fixed and thus breaks away during bending. After the positioning block is fixed, the fixing plate, outer wheel, inner wheel, and connecting rod of the docking device drive the connecting rod through the rotation of the outer wheel to move the fixing plate towards the steel pipe. The inner wall surface of the fixing plate fits on the outer circumference of the steel pipe to fix the steel pipe. The fitting of the fixing plate is controlled by the outer wheel, reducing the participation of manual fixing, thereby reducing the labor intensity of workers. Moreover, the steel pipes fixed by the docking device need to maintain a high degree of consistency in position. Manual fixing is likely to cause deviations in the fixing positions of the steel pipes. Second, by using the auxiliary device, docking device, and bending device, when the steel pipe is bent, the auxiliary device first extends into the inner wall of the steel pipe. During bending, the filling block of the auxiliary device supports the inner wall of the steel pipe, so that the surface of the bent part of the steel pipe does not sink downward after bending. After the steel pipe is bent, the auxiliary device withdraws from the inner wall of the steel pipe. Another steel pipe is placed inside the docking device. Another steel pipe is fixed by another set of inner wheel, outer wheel, connecting rod, and fixing plate. While being fixed, it approaches the bent steel pipe, making the opposite surfaces of the two steel pipes fit. When the opposite surfaces of the two steel pipes are completely fitted, the docking device performs complete fixation to completely fix the two steel pipes. After the fixation is completed, the motor is controlled to start, and the fixed wheel is driven to rotate around the center of the outer wheel through the connecting belt, so as to connect the fitting parts of the two steel pipes through the docking block, reducing the phenomenon that the docking position difference is too large and the docking firmness is poor when the steel pipes are taken out and then docked. Description of the Drawings

[0024] The following further describes the present application with reference to the drawings and embodiments.

[0025] Figure 1 It is the front view of the bending steel pipe docking device according to the embodiment of the present invention.

[0026] Figure 2 It is the top view of the bending steel pipe docking device according to the embodiment of the present invention.

[0027] Figure 3 It is the internal schematic diagram of the auxiliary device of the bending steel pipe docking device according to the embodiment of the present invention.

[0028] Figure 4 It is a schematic diagram of the interior of a butt joint device of a bent steel pipe butt joint device according to an embodiment of the present invention.

[0029] Figure 5 It is a schematic diagram of the interior of the butt joint device of the bent steel pipe butt joint device according to an embodiment of the present invention when in use.

[0030] Figure 6 It is an enlarged schematic diagram of a butt joint device of a bent steel pipe butt joint device according to an embodiment of the present invention.

[0031] Figure 7 It is a schematic diagram of the working process of the bent steel pipe butt-jointing device according to an embodiment of the present invention.

[0032] Figure 8 It is a schematic diagram of the working process of the bent steel pipe butt-jointing device according to an embodiment of the present invention.

[0033] 10. Machine body 101, rotating tank 20, conveying device

[0034] 30, steel pipe 40, bending device 401, bending column

[0035] 402, positioning block 403, limiting rod 404, outer cover

[0036] 50. Docking device 501. Shell 502. Outer wheel

[0037] 503, driving motor 504, connecting rod 505, inner wheel

[0038] 506, control motor 507, connecting belt 508, fixing plate

[0039] 509, fixed wheel 510, docking block 60, auxiliary device

[0040] 601, support plate 602, telescopic motor 603, first filling block

[0041] 604, second filling block 605, receiving block DETAILED DESCRIPTION

[0042] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] For the purposes of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are set forth in order to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring these embodiments. Additionally, all embodiments can be used in combination with each other.

[0046] Example 1:

[0047] Such as Figure 1 、 2As shown in the figure, this embodiment discloses a bending steel pipe docking device, including: a machine body 10, a conveying device 20, a bending device 40, a bending column 401, a docking device 50, a fixing plate 508, a docking block 510, and an auxiliary device 60. The machine body 10 is disposed on a plane; the conveying device 20 is disposed above the machine body 10, and the conveying device 20 is fixedly connected to the machine body 10. A steel pipe 30 is disposed inside the conveying device 20, and the conveying device 20 is used to push the steel pipe 30 to move; the bending device 40 is disposed on one side of the machine body 10, and the bending device 40 is fixedly connected to the machine body 10. The bending device 40 and the conveying device 20 are concentric. The bending device 40 is used to bend the steel pipe 30. The bending device 40 includes: the bending column 401 is disposed on one side of the conveying device 20, and the bending column 401 is fixedly connected to the machine body 10. The outer periphery of the bending column 401 and the conveying device 20 are concentric. A semi-circular groove is disposed on the outer periphery of the bending column 401, and the semi-circular groove of the bending column 401 and the conveying device 20 are concentric; the docking device 50 is disposed on one side of the bending device 40, and the docking device 50 is fixedly connected to the bending device 40. The docking device 50 and the bending device 40 are concentric. The docking device 50 is used for docking and assembling the steel pipe 30. The docking device 50 includes: the fixing plate 508 is disposed on one side of the conveying device 20, and the fixing plate 508 is in contact with the steel pipe 30. The fixing plate 508 is disposed on the outer surface of the steel pipe 30; the docking block 510 is disposed above the steel pipe 30, and there is a gap directly between the docking block 510 and the steel pipe 30. The docking block 510 is used to fix the steel pipe 30 for docking; the auxiliary device 60 is disposed on one side of the docking device 50, and the auxiliary device 60 is fixedly connected to the docking device 50. The auxiliary device 60 is used to protect the bending of the steel pipe 30. The bending column 401 is fixedly connected to a support plate 601. The support plate 601 is disposed on the right side of the bending column 401. A support board is disposed below the support plate 601, and the support board is movably connected to the machine body 10. A groove is disposed on the surface of the machine body 10, and the groove on the surface of the machine body 10 cooperates with the support board. The groove on the surface of the machine body 10 is a rotating groove 101, and the rotating groove 101 cooperates with the support board below the support plate.

[0048] The conveying device 20, bending device 40, docking device 50, and auxiliary device 60 are adopted. When bending the steel pipe 30, the worker places the steel pipe 30 into the conveying device 20, and the conveying device 20 automatically moves it towards the bending device 40 and docking device 50, reducing the operation of manually positioning the steel pipe 30. After the steel pipe 30 reaches the designated position of the docking device 50, the docking device 50 fixes the steel pipe 30. At the same time, the worker fits the positioning block 402 with the bending column 401, and then uses the limiting rod 403 to fix the positioning block 402. The preliminary fixing by the worker can prevent the situation where the bending column 401 and the positioning block 402 do not fix the steel pipe 30. And by fixing the other end of the steel pipe 30 through the docking device 50, it can prevent the redundant part from shaking during the bending process of the steel pipe 30, thus affecting the bending effect of the steel pipe 30. Also, by fixing the steel pipe 30 through the docking device 50, it can prevent the steel pipe 30 from shifting in position when docking two steel pipes 30 after bending, which would otherwise require manual adjustment. Manual adjustment will inevitably lead to differences in the docking of the steel pipe 30 and an inability to maintain a high alignment degree, thus affecting the docking firmness. By keeping the original position of the steel pipe 30 during docking through the docking device 50, the position difference between the two steel pipes 30 is reduced, improving the docking accuracy.

[0049] Specifically, the conveying device 20 is a roller conveyor device 20. The steel pipe 30 is placed inside the conveying device 20 and moves towards the bending device 40. The outlet of the conveying device 20 and the semi-circular groove of the bending column 401 are concentric, and there is a spacing between the bending column 401 and the conveying device 20.

[0050] Specifically, the bending device 40 includes: a positioning block 402, an outer cover 404, and a limiting rod 403. The positioning block 402 is arranged on the outer periphery of the bending column 401, and the positioning block 402 is movably connected to the bending column 401. There are through holes on the surface of the positioning block 402; the limiting rod 403 is arranged inside the positioning block 402, and the limiting rod 403 passes through the through holes of the positioning block 402; the outer cover 404 is arranged on one side of the conveying device 20, and the outer cover 404 is fixedly connected to the machine body 10. The outer cover 404 is arranged below the bending column 401, and there is a rotating motor inside the outer cover 404, and the rotating motor controls the docking device 50 and the auxiliary device 60 to move along with the bending device 40.

[0051] Specifically, as Figure 4 、 5, as shown in FIGS. 6, the docking device 50 includes: a housing 501, an outer wheel 502, a drive motor 503, a connecting rod 504, an inner wheel 505, a control motor 506, a connecting belt 507, a fixing plate 508, a fixed wheel 509, and a docking block 510. The housing 501 is disposed on the upper surface of the auxiliary device 60, and the housing 501 is fixedly connected to the auxiliary device 60. The interior of the housing 501 is hollow, and through holes are provided on opposite sides of the housing 501; the outer wheel 502 is disposed inside the housing 501, and the outer wheel 502 is fixedly connected to the housing 501. The outer wheel 502 and the steel pipe 30 are concentric; the drive motor 503 is disposed above the outer wheel 502, and the drive motor 503 is meshed with the outer periphery of the outer wheel 502. The drive motor 503 controls the rotation of the outer wheel 502; the connecting rod 504 is disposed on the outer surface of the outer wheel 502, and one end of the connecting rod 504 is movably connected to the surface of the outer wheel 502; the inner wheel 505 is disposed inside the outer wheel 502, and the inner wheel 505 and the outer wheel 502 are concentric. A groove is provided on the outer periphery of the inner wheel 505, and the groove of the inner wheel 505 is used to connect the other end of the connection; the fixed wheel 509 is disposed on one side of the outer wheel 502, and the fixed wheel 509 is movably connected to the housing 501. The fixed wheel 509 and the inner wheel 505 are concentric; the docking block 510 is disposed on the outer surface of the fixed wheel 509, and the docking block 510 does not contact the steel pipe 30; the control motor 506 is disposed inside the housing 501, and the control motor 506 is disposed above the fixed wheel 509; the connecting belt 507 is disposed between the control motor 506 and the fixed wheel 509. One end of the connecting belt 507 is connected to the control motor 506, and the other end of the connecting belt 507 is connected to the fixed wheel 509; the fixing plate 508 is disposed on the surface of the inner wheel 505, and the fixing plate 508 is movably connected to the inner wheel 505. The fixing plate 508 is disposed in a fitting manner with the outer periphery of the steel pipe 30. There are two outer wheels 502, two inner wheels 505, two drive motors 503, six connecting rods 504, and six fixing plates 508. The connecting rods 504 and the fixing plates 508 are each used in a group of three in cooperation with the outer wheel 502, the inner wheel 505, and the drive motor 503. The structures formed by the outer wheel 502, the inner wheel 505, the drive motor 503, the connecting rod 504, and the fixing plate 508 are provided in two, respectively corresponding to the fixation of two steel pipes 30. Through the fixation of the two groups, the two steel pipes 30 can be kept in the same position, thereby reducing the positional difference generated during the docking of the steel pipes 30 and reducing the deviation of the docking position of the steel pipes 30. At the same time, there is no need for manual adjustment of the docking position of the steel pipes 30, which improves the docking accuracy and speeds up the docking completion.

[0052] After passing through the conveying device 20, the steel pipe 30 continues to move towards the docking device 50 after reaching the bending device 40 through the bending device 40 and the docking device 50. After reaching the designated position of the docking device 50, the steel pipe 30 stops moving. The positioning block 402 of the bending device 40 moves towards the semi-circular groove of the bending column 401 on the pallet 601, and the outer circumference of the steel pipe 30 is fixed by the fitting of the positioning block 402 and the bending column 401. After the positioning block 402 reaches the fixed position, the limiting rod 403 passes through the through hole of the positioning block 402 and inserts into the inside of the pallet 601 to fix the steel pipe 30. The fixation formed by the limiting rod 403 and the positioning block 402 reduces the risk that the steel pipe 30 is not fully fixed and thus disengages during bending. After the positioning block 402 is fixed, the fixing plate 508, outer wheel 502, inner wheel 505, and connecting rod 504 of the docking device 50 drive the connecting rod 504 through the rotation of the outer wheel 502 to move the fixing plate 508 towards the steel pipe 30. The inner wall surface of the fixing plate 508 fits against the outer circumference of the steel pipe 30 to fix the steel pipe 30. The fitting of the fixing plate 508 is controlled by the outer wheel 502 to reduce the participation of manual fixing, thereby reducing the manual labor intensity. Moreover, the steel pipes 30 fixed by the docking device 50 need to maintain a high degree of consistency in position. Manual fixing is likely to cause deviations in the fixing positions of the steel pipes 30.

[0053] Specifically, as Figure 3 , 5 shown, the auxiliary device 60 includes: a pallet 601 and a telescopic motor 602. The pallet 601 is arranged outside the bending column 401, and the pallet 601 is connected to the bending column 401 in a cooperative manner. The docking device 50 and the auxiliary device 60 are arranged above the pallet 601, and the pallet 601 rotates simultaneously with the bending column 401; the telescopic motor 602 is arranged on the upper surface of the pallet 601, the telescopic motor 602 is movably connected to the pallet 601, and the telescopic motor 602 and the steel pipe 30 are concentric. One end of the telescopic motor 602 extending into the steel pipe 30 is provided with a first filling block 603, the first filling block 603 is fixedly connected to the telescopic motor 602, one end of the first filling block 603 is provided with an arc-shaped groove, a receiving block 605 is connected to the arc-shaped groove of the first filling block 603, the receiving block 605 is spherical, a second filling block 604 is arranged on the other side of the receiving block 605, the first filling block 603 and the second filling block 604 are arranged oppositely, and both the first filling block 603 and the second filling block 604 are movably connected to the receiving block 605.

[0054] Specifically, the inside of the outer wheel 502 is a through hole, and a chute is arranged on the inner wall surface of the outer wheel 502. The chute of the outer wheel 502 is connected to the inner wheel 505 in a cooperative manner; the inner wheel 505 does not directly contact the outer wheel 502. A support plate is arranged on the surface of the inner wheel 505, and the inner wheel 505 is fixedly connected to the housing 501 through the support plate. The inner wheel 505 supports the outer wheel 502 to rotate around the outer circumference of the inner wheel 505.

[0055] Specifically, a plurality of fixing plates 508 are provided. The plurality of fixing plates 508 form a complete circle. The inner wall surfaces of the plurality of fixing plates 508 are attached to the outer circumference of the steel pipe 30. The fixing plates 508 are driven by the outer wheel 502 to drive the connecting rod 504 for fixation.

[0056] Specifically, the docking block 510 is driven by the control motor 506 to drive the fixed wheel 509 to rotate around the outer circumference of the steel pipe 30, and the docking block 510 follows the rotation of the fixed wheel 509.

[0057] Specifically, the surface of the support plate 601 is provided with a groove. The groove of the support plate 601 is used for the telescopic motor 602 to move. One end of the telescopic motor 602 extends into the inner wall of the steel pipe 30 for filling.

[0058] By using the auxiliary device 60, the docking device 50, and the bending device 40, when the steel pipe 30 is bent, the auxiliary device 60 first extends into the inner wall of the steel pipe 30. During bending, the filling block of the auxiliary device 60 supports the inner wall of the steel pipe 30, so that the surface of the bent part of the steel pipe 30 does not sink downward after bending. After the steel pipe 30 is bent, the auxiliary device 60 withdraws from the inner wall of the steel pipe 30. Another steel pipe 30 is placed inside the docking device 50. Another steel pipe 30 is fixed by another set of inner wheels 505, outer wheels 502, connecting rods 504, and fixing plates 508. While fixing, it approaches the bent steel pipe 30, so that the opposite surfaces of the two steel pipes 30 are attached. When the opposite surfaces of the two steel pipes 30 are completely attached, the docking device 50 performs complete fixation to completely fix the two steel pipes 30. After the fixation is completed, the control motor 506 is started, and the fixed wheel 509 is driven to rotate around the center of the outer wheel 502 through the connecting belt 507, so as to connect the joint of the two steel pipes 30 through the docking block 510, reducing the phenomenon that the docking position difference is too large and the docking firmness is poor when the steel pipe 30 is taken out and then docked.

[0059] During use, after the steel pipe 30 moves towards the bending device 40 through the conveying device 20, the steel pipe 30 enters the docking device 50. After the steel pipe 30 reaches the designated position of the docking device 50, the bending column 401 and the positioning block 402 position the steel pipe 30 to prevent the steel pipe 30 from detaching during the bending process of the steel pipe 30, causing bending damage. After the steel pipe 30 enters the docking device 50, the fixing plate 508 fixes the surface of the steel pipe 30 through the combination drive of the outer wheel 502, the connecting rod 504, and the driving motor 503. By fixing the surface of the steel pipe 30 through the fixing plate 508, it reduces the position deviation of the bent steel pipe 30 after the contact and fixation between the bending column 401 and the positioning block 402, thereby affecting the accuracy of the subsequent docking of the steel pipe 30. After the steel pipe 30 is fixed by the docking device 50 and the bending device 40, the auxiliary device 60 extends into the inner wall of the steel pipe 30. After the steel pipe 30 is bent, the auxiliary device 60 follows the rotation of the steel pipe 30, and at the same time, fills the bent part of the steel pipe 30 to prevent the bent part of the steel pipe 30 from denting. After the bending of the steel pipe 30 is completed, the auxiliary device 60 disengages from the inside of the steel pipe 30. Another steel pipe 30 is placed on the other side of the docking device 50 corresponding to the bent steel pipe 30. After another steel pipe 30 is placed in the docking device 50, after the opposite surfaces of the two steel pipes 30 are fitted, the docking device 50 simultaneously fixes the two steel pipes 30, and the fixing wheel 509 rotates around the center of the outer wheel 502. While rotating on the outer periphery of the fitting part of the two steel pipes 30, the docking block 510 winds the fitting part of the two steel pipes 30 to achieve docking and fixation, thereby reducing the position difference during the docking process, improving the docking accuracy, and increasing the firmness of the subsequent steel pipe 30.

[0060] As Figure 7 , 8 shown, finally, a method for using the docking device 50 for bending steel pipes 30 is provided, including the following steps:

[0061] Start the conveying device 20, place the steel pipe 30 to be processed inside the conveying device 20, drive the steel pipe 30 to move towards the bending device 40 through the conveying device 20. After the steel pipe 30 passes through the semi-circular groove of the bending column 401, it continues to move. The steel pipe 30 moves towards the docking device 50 and stops moving after moving into the docking device 50.

[0062] Adjust the positioning block 402 to fit the positioning block 402 with the semi-circular groove of the bending column 401, completely surround the outer periphery of the steel pipe 30 through the positioning block 402 and the bending column 401, and pass the limiting rod 403 through the through hole of the positioning block 402 to connect with the support plate 601.

[0063] Start the docking device 50. The drive motor 503 drives the outer wheel 502 to rotate by a certain angle. While the outer wheel 502 rotates, it drives the connecting rod 504 to move. The connecting rod 504 drives the fixed plate 508 to rotate towards the steel pipe 30. The inner wall surface of the fixed plate 508 fits against the outer circumference of the steel pipe 30. Multiple fixed plates 508 clamp and fix the steel pipe 30. When the outer wheel 502 rotates, the inner wheel 505 remains stationary;

[0064] The steel pipe 30 is bent. After the docking device 50 and the positioning block 402 are fixed, the bending column 401 starts to rotate. While the bending column 401 rotates, the support plate 601, the telescopic motor 602, and the docking device 50 rotate following the bending column 401;

[0065] The steel pipes 30 are docked. After the steel pipe 30 is bent, the docking device 50 continues to hold the steel pipe 30 fixed. Another steel pipe 30 is placed from the other side of the housing 501 of the docking device 50. The other steel pipe 30 passes through the housing 501 and enters the interior of the outer wheel 502. Another drive motor 503 is started to drive another outer wheel 502 to rotate, thereby driving another set of fixed plates 508 to move and fix to the outer surface of the other steel pipe 30. When the opposite surfaces of the two steel pipes 30 are in contact, the two sets of outer wheels 502, inner wheels 505, fixed plates 508, and connecting rods 504 remain fixed;

[0066] The joint surface is wound. After the opposite surfaces of the two steel pipes 30 are in contact, the control motor 506 is started. The control motor 506 drives the connecting belt 507, and the driven wheel connected to the connecting belt 507 drives the fixed wheel 509 to rotate. The fixed wheel 509 rotates around the center of the outer wheel 502. The docking block 510 on the outer surface of the fixed wheel 509 rotates around the joint surface of the two steel pipes 30. The winding of the docking block 510 covers the joint surface of the two steel pipes 30 for docking and fixing;

[0067] The fixed plate 508 resets. After the two steel pipes 30 are docked and fixed, the fixed plate 508 releases the fixation of the steel pipe 30. The limiting rod 403 disengages from the support plate 601, causing the positioning block 402 to separate from the bending column 401. The steel pipe 30 is taken out, and a new steel pipe 30 is placed to repeat the above steps.

[0068] Although the above describes the illustrative specific embodiments of the present application for the convenience of those skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, all applications and creations using the concept of the present application are within the scope of protection.

Claims

1. A bending steel pipe docking device, wherein, it includes: a body, the body is arranged on a plane; a conveying device, the conveying device is arranged above the body, the conveying device is fixedly connected to the body, a steel pipe is arranged inside the conveying device, and the conveying device is used to push the steel pipe to move; a bending device, the bending device is arranged on one side of the body, the bending device is fixedly connected to the body, the bending device and the conveying device are concentric, the bending device is used to bend the steel pipe, and the bending device includes: a bending column, the bending column is arranged on one side of the conveying device, the bending column is fixedly connected to the body, the outer circumference of the bending column and the conveying device are concentric, a semi-circular groove is arranged on the outer circumference of the bending column, and the semi-circular groove of the bending column and the conveying device are concentric; a docking device, the docking device is arranged on one side of the bending device, the docking device is fixedly connected to the bending device, the docking device and the bending device are concentric, the docking device is used for docking and assembling the steel pipe, and the docking device includes: a fixing plate, the fixing plate is arranged on one side of the conveying device, the fixing plate is in contact with the steel pipe, and the fixing plate is arranged on the outer surface of the steel pipe; a docking block, the docking block is arranged above the steel pipe, there is a gap between the docking block and the steel pipe, and the docking block is used to fix the steel pipe for docking; an auxiliary device, the auxiliary device is arranged on one side of the docking device, the auxiliary device is fixedly connected to the docking device, and the auxiliary device is used to protect the bending of the steel pipe; the conveying device is a roller conveyor device, the steel pipe is placed inside the conveying device and moves towards the bending device, the outlet of the conveying device and the semi-circular groove of the bending column are concentric, and there is a spacing between the bending column and the conveying device; the bending device includes: a positioning block, the positioning block is arranged on the outer circumference of the bending column, the positioning block is movably connected to the bending column, and through holes are arranged on the surface of the positioning block; a limiting rod, the limiting rod is arranged inside the positioning block, and the limiting rod passes through the through holes of the positioning block; an outer cover, the outer cover is arranged on one side of the conveying device, the outer cover is fixedly connected to the body, the outer cover is arranged below the bending column, and a rotating motor is arranged inside the outer cover, and the rotating motor controls the docking device and the auxiliary device to move along with the bending device; The docking device includes: a housing disposed on the upper surface of the auxiliary device, fixedly connected to the auxiliary device, hollow inside, and having through holes on opposite sides; an outer wheel disposed inside the housing, fixedly connected to the housing, and concentric with the steel pipe; a driving motor disposed above the outer wheel, meshingly connected to the outer periphery of the outer wheel, and controlling the rotation of the outer wheel; a connecting rod disposed on the outer surface of the outer wheel, with one end movably connected to the surface of the outer wheel; an inner wheel disposed inside the outer wheel, concentric with the outer wheel, having a groove on its outer periphery for connecting the other end of the connection; a fixed wheel disposed on one side of the outer wheel, movably connected to the housing, and concentric with the inner wheel; a docking block disposed on the outer surface of the fixed wheel, not in contact with the steel pipe; a control motor disposed inside the housing, above the fixed wheel; a connecting belt disposed between the control motor and the fixed wheel, with one end connected to the control motor and the other end connected to the fixed wheel; a fixing plate disposed on the surface of the inner wheel, movably connected to the inner wheel, and fittingly disposed on the outer periphery of the steel pipe.

2. A bending steel pipe docking device according to claim 1, wherein, the auxiliary device includes: a support plate disposed outside the bending column, cooperatively connected to the bending column, with the docking device and the auxiliary device above it, and the support plate and the bending column rotating simultaneously; a telescopic motor disposed on the upper surface of the support plate, movably connected to the support plate, and concentric with the steel pipe.

3. A bending steel pipe docking device according to claim 1, wherein, the inside of the outer wheel is a through hole, and a sliding groove is provided on the inner wall surface of the outer wheel, which cooperates with the inner wheel; the inner wheel is not in direct contact with the outer wheel, and a support plate is provided on the surface of the inner wheel. The inner wheel is fixedly connected to the housing through the support plate, and the inner wheel supports the outer wheel to rotate around the outer periphery of the inner wheel.

4. A bending steel pipe docking device according to claim 3, wherein, a plurality of fixing plates are provided, and the plurality of fixing plates form a complete circle. The inner wall surfaces of the plurality of fixing plates fit the outer periphery of the steel pipe, and the fixing plates are driven and fixed by the outer wheel through the connecting rod.

5. A bending steel pipe docking device according to claim 4, wherein, The docking block is driven by the control motor to drive the fixed wheel and then rotates around the outer circumference of the steel pipe, and the docking block follows the rotation of the fixed wheel.

6. A bending steel pipe docking device according to claim 2, wherein, a groove is provided on the surface of the support plate, and the groove of the support plate is used for the telescopic motor to move, and one end of the telescopic motor extends into the inner wall of the steel pipe for filling.

7. A method for using a bending steel pipe docking device according to claim 1, comprising the following steps: Start the conveying device, place the steel pipe to be processed inside the conveying device, drive the steel pipe to move towards the bending device through the conveying device, continue to move after the steel pipe passes through the semi-circular groove of the bending column, the steel pipe moves towards the docking device, and stop moving after the steel pipe moves into the docking device; Adjust the positioning block, make the positioning block fit with the semi-circular groove of the bending column, completely surround the outer circumference of the steel pipe through the positioning block and the bending column, and pass the limiting rod through the through hole of the positioning block and connect it with the support plate; Start the docking device, the driving motor drives the outer wheel to rotate a certain angle, while the outer wheel rotates, it drives the connecting rod to move, drives the fixed plate to rotate and approach the steel pipe through the connecting rod, the inner wall surface of the fixed plate fits with the outer circumference of the steel pipe, and multiple fixed plates clamp and fix the steel pipe, and the inner wheel remains stationary when the outer wheel rotates; Bend the steel pipe. After the docking device and the positioning block are fixed, the bending column starts to rotate, and while the bending column rotates, the support plate, the telescopic motor, and the docking device rotate following the bending column; Dock the steel pipes. After the steel pipe is bent, the docking device continues to fix the steel pipe. Place another steel pipe into the docking device from the other side of the outer shell of the docking device. The other steel pipe passes through the outer shell and enters the inside of the outer wheel. Start another driving motor to drive another outer wheel to rotate, thereby driving another group of fixed plates to move and fix to the outer surface of the other steel pipe. When the opposite surfaces of the two steel pipes are in contact, the two groups of outer wheels, inner wheels, fixed plates, and connecting rods remain fixed; Wind the joint surface. After the opposite surfaces of the two steel pipes are in contact, the control motor is started. The control motor drives the connecting belt to make the driven wheel connected to the connecting belt drive the fixed wheel to rotate. The fixed wheel rotates around the center of the outer wheel. The docking block on the outer surface of the fixed wheel rotates around the joint surface of the two steel pipes, and the winding of the docking block covers the joint surface of the two steel pipes for docking and fixing; Reset the fixed plate. After the two steel pipes are docked and fixed, the fixed plate releases the fixation of the steel pipe, the limiting rod disengages from the support plate, causing the positioning block to separate from the bending column, take out the steel pipe, and put in a new steel pipe to repeat the above steps.

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