A flaring device for processing a steel pipe

Abstract

The application discloses a flaring device for steel pipe machining, and belongs to the field of steel pipe machining devices. The flaring device comprises a rack, a side plate fixedly connected to the rack, a fixed frame oppositely arranged to the side plate, a fixed sleeve fixed at one end of a piston rod of a control cylinder, a penetrating head fixedly arranged at one end of the fixed sleeve, an annular cavity formed in the penetrating head, a plurality of groups of oil outlets circumferentially distributed on the side wall of the penetrating head, the oil outlets being in communication with the annular cavity, an oil pump fixedly arranged on the fixed frame, and an oil outlet end of the oil pump connected with the penetrating head through an oil conveying pipe and in communication with the annular cavity. The flaring device for steel pipe machining has the beneficial effect that when lubricating oil is injected into the steel pipe, the annular bag is inflated by being filled with air in the mounting groove, thereby the inside of the steel pipe is blocked, the oil liquid is prevented from flowing in the steel pipe, and the inner wall of the steel pipe is prevented from being polluted.

Description

Technical Field

[0001] This application relates to the field of steel pipe processing equipment, and more specifically, to a flaring device for steel pipe processing. Background Technology

[0002] Steel pipes typically need to be assembled end-to-end. The existing solution is to flare the ends of the steel pipes, increasing their diameter so that they can fit over the unflared end of another steel pipe. However, existing steel pipe flaring equipment requires pre-coating the inner wall of the pipe end with lubricating oil to prevent cracking. But after applying the lubricating oil, placing the pipe on the flaring machine causes the lubricating oil to flow inside the pipe, which can easily lead to contamination of the inner wall of the pipe and insufficient lubricating oil at the pipe end, resulting in cracking.

[0003] Therefore, a flaring device for steel pipe processing is needed to solve the above problems. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section, some embodiments of this application provide a flaring device for steel pipe processing, comprising: a frame, on which a side plate and a fixing frame opposite to the side plate are fixedly connected; a flaring cylinder, fixedly mounted on the side plate; a flaring head, fixed to one end of the piston rod of the flaring cylinder; two fixing cylinders, respectively fixed to the upper and lower ends of the fixing frame; and two clamping blocks, arranged opposite to each other, each fixed to one end of the piston rod of one of the two fixing cylinders, allowing for... Two fixed cylinders cause the two clamping blocks to move towards or away from each other; a control cylinder is fixedly mounted on the fixed frame; an oiling assembly is mounted on one end of the piston rod of the control cylinder; the oiling assembly includes: a fixed sleeve fixedly mounted on one end of the piston rod of the control cylinder; an extension head fixedly mounted on one end of the fixed sleeve; an annular cavity is opened inside the extension head, and multiple sets of circumferentially distributed oil outlets are opened on the side wall of the extension head, the oil outlets are connected to the annular cavity, and an oil pump is fixedly mounted on the fixed frame, the oil outlet end of the oil pump is connected to the extension head through an oil supply pipe and is connected to the annular cavity.

[0006] The fixed sleeve is designed so that when the pipe is flared, the fixed sleeve extends into the steel pipe and lubricating oil is injected into the steel pipe through the oil outlet to lubricate the flared end.

[0007] Furthermore, the insertion head has an installation groove, in which an annular bladder is fixedly installed. An air pump is fixedly installed on the fixed frame. The air outlet of the air pump is connected to the insertion head through an air pipe. An air outlet is opened on the inner wall of the installation groove, which is connected to the air pipe to input air into the installation groove.

[0008] By using a ring-shaped bladder, when lubricating oil is injected into the steel pipe, the bladder expands by inflating the mounting groove, thereby sealing the inside of the steel pipe and preventing the oil from flowing inside and causing contamination of the inner wall of the steel pipe.

[0009] Furthermore, a toothed sleeve with one end passing through the insertion head is rotatably connected inside the fixed sleeve. The toothed sleeve is connected to a rotating head at one end of the insertion head. An oil brush is provided on the rotating head, and the oil brush contacts the inner wall of the steel pipe.

[0010] The rotating head drives the oil brush to rotate, which in turn evenly coats the inside of the flared end of the steel pipe with lubricating oil, thus preventing the steel pipe from cracking due to the flow of lubricating oil.

[0011] Furthermore, the toothed sleeve has teeth extending along the axis on its side wall, a motor is fixedly connected to the fixed frame, and a gear is fixedly connected to the motor's power output end, with the gear meshing with the teeth on the toothed sleeve.

[0012] The motor and gears are designed so that when the motor outputs power, the gears drive the toothed sleeve to rotate, which in turn drives the rotating head to rotate, spreading the lubricating oil evenly.

[0013] Furthermore, a connecting rod is slidably connected inside the toothed sleeve along the axis. One end of the connecting rod protrudes from the toothed sleeve and is fixedly connected to the rotating head. A spring is connected between the connecting rod and the toothed sleeve, and the two ends of the spring are fixedly connected to the connecting rod and the toothed sleeve, respectively.

[0014] With the help of a connecting rod and spring, when the probe enters the pipe, the rotating head extends to the flared end of the steel pipe, ensuring that lubricant is applied to the inner wall of the flared end. As the flared end is flared, it is gradually inserted into the steel pipe, which pushes the rotating head to compress the spring, ensuring that the oil is evenly applied at the compression point of the flared end.

[0015] Furthermore, a slot is provided on the fixed frame, and when the piston rod of the control cylinder is in the retracted state, the rotating head is located in the slot.

[0016] This makes it easy to insert the steel pipe between the two clamping blocks.

[0017] Furthermore, a mounting platform directly opposite the slot is fixedly connected to the fixed frame, and the control cylinder is fixedly mounted on the mounting platform.

[0018] The beneficial effects of this application are as follows:

[0019] 1. By using a fixed sleeve, when flaring, the fixed sleeve extends into the steel pipe, and lubricating oil is injected into the steel pipe through the oil outlet to lubricate the flared end.

[0020] 2. By using the annular bladder, when the lubricating oil is injected into the steel pipe, the annular bladder expands by inflating the installation groove, thereby sealing the inside of the steel pipe and preventing the oil from flowing inside the steel pipe and causing contamination of the inner wall of the steel pipe.

[0021] 3. The rotating head drives the oil brush to rotate, which in turn evenly coats the inside of the flared end of the steel pipe with lubricating oil, thus preventing the steel pipe from cracking due to the flow of lubricating oil. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0023] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0024] In the attached diagram:

[0025] Figure 1 This is an overall schematic diagram according to one embodiment of the present application;

[0026] Figure 2 yes Figure 1 A schematic diagram of the installation structure of the control cylinder in the embodiment;

[0027] Figure 3 yes Figure 1 The installation diagram of the fixing sleeve in the embodiment is shown below;

[0028] Figure 4 yes Figure 1 A schematic diagram of the installation of the annular bladder in the embodiment;

[0029] Figure 5 yes Figure 1 A schematic diagram of the toothed sleeve in the embodiment;

[0030] Figure 6 yes Figure 1 A schematic diagram of the connecting rod in the embodiment;

[0031] Figure 7 yes Figure 1A cross-sectional view of the insertion head in the embodiment described.

[0032] Figure label:

[0033] 10. Frame; 11. Side plate; 12. Fixing frame; 13. Fixing cylinder; 14. Clamping block; 15. Flaring cylinder; 16. Flaring head; 17. Control cylinder; 18. Spring; 19. Fixing sleeve; 20. Insertion head; 21. Oil pump; 22. Air pump; 23. Mounting slot; 24. Annular bladder; 25. Oil outlet; 26. Toothed sleeve; 27. Motor; 28. Gear; 29. ​​Rotating head; 30. Oil brush; 31. Connecting rod; 32. Air outlet; 33. Annular cavity; 34. Slot; 35. Mounting platform. Detailed Implementation

[0034] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0035] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0036] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0037] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0038] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] Reference Figure 1-7A flaring device for steel pipe processing includes: a frame 10, a side plate 11, a fixing frame 12, a flaring cylinder 15, a flaring head 16, a fixing cylinder 13, a clamping block 14, a control cylinder 17, a fixing sleeve 19, and an insertion head 20. The side plate 11 is fixed to the frame 10, and the fixing frame 12 is also fixed to the frame 10 and positioned opposite to the side plate 11. Two fixing cylinders 13 are fixedly connected to the fixing frame 12, located at the upper and lower ends of the fixing frame 12 respectively. A clamping block 14 is fixedly connected to one end of the piston rod of each of the two fixing cylinders 13. The two clamping blocks 14 are arranged opposite each other and are used to horizontally clamp the steel pipe. The flaring cylinder 15 is fixedly connected to the side plate 11, and a flaring head 16 is fixedly connected to one end of the piston rod of the flaring cylinder 15. When flaring, the steel pipe is clamped between the two clamping blocks 14, and the flaring head 16 flares one end of the steel pipe.

[0040] A slot 34 is provided on the fixed frame 12. A mounting platform 35 is fixedly installed on the fixed frame 12, facing the slot 34. A horizontally arranged control cylinder 17 is fixedly connected to the mounting platform 35. The piston rod of the control cylinder 17 is coaxially arranged with the flared opening 16. A fixed sleeve 19 is fixedly connected to one end of the piston rod of the control cylinder 17. An insertion head 20 is fixedly connected to one end of the fixed sleeve 19. An installation groove 23 is provided on the insertion head 20. An annular bladder 24 is fixedly installed in the installation groove 23. Meanwhile, circumferentially distributed oil outlets 25 are provided on one side of the insertion head 20. An oil pump 21 is fixedly installed on the fixing frame 12. The oil inlet end of the oil pump 21 is connected to a lubricating oil tank, and an oil supply pipe is connected between the oil outlet end of the oil pump 21 and the insertion head 20. An annular cavity 33 is provided inside the insertion head 20. Lubricating oil is discharged into the annular cavity 33 through the oil supply pipe. At the same time, the oil outlets 25 are connected to the annular cavity 33, so that the oil pump 21 can discharge the lubricating oil from the oil outlets 25 into the steel pipe. When reaming, the insertion head 20 is inserted into the steel pipe and close to the reaming end. When the oil pump 21 discharges lubricating oil into the inside of the steel pipe, the reaming is lubricated. An air pump 22 is also fixedly connected to the fixed frame 12. The air outlet of the air pump 22 is connected to the insertion head 20 through an air pipe. An air outlet 32 ​​is opened on the end wall of the mounting groove 23. The air pipe is connected to the air outlet 32, so that air is injected into the mounting groove 23 by the air pump 22, thereby causing the annular bladder 24 to expand. When the insertion head 20 is inserted into the steel pipe, the annular bladder 24 expands and abuts against the inner wall of the steel pipe by inflating the mounting groove 23, separating the inside of the steel pipe and preventing the lubricating oil from flowing inside the steel pipe and causing contamination to the inner wall of the steel pipe.

[0041] A toothed sleeve 26 is rotatably connected inside the fixed sleeve 19. One end of the toothed sleeve 26 passes through the insert head 20. A connecting rod 31 is slidably arranged coaxially inside the toothed sleeve 26. A spring 18 is connected between one end of the connecting rod 31 and the toothed sleeve 26. The two ends of the spring 18 are respectively fixed to the connecting rod 31 and the toothed sleeve 26. A rotating head 29 is fixedly connected to one end of the connecting rod 31. Oil brushes 30 are circumferentially distributed on the rotating head 29. When the rotating head 29 is inserted into the steel pipe, the oil brushes 30 abut against the inner wall of the steel pipe. A motor 27 is fixedly connected to the fixed frame 12. A gear 28 is fixedly connected to the power output end of the motor 27. Circumferentially arranged teeth extending along the axis are provided on the outer wall of the toothed sleeve 26. The gear 28 meshes with the teeth on the toothed sleeve 26. This allows the gear 28 to rotate, driving the toothed sleeve 26 to rotate as well. Simultaneously, as the toothed sleeve 26 moves axially, the gear 28 remains engaged with the teeth on the sleeve. After the lubricating oil is discharged from the oil outlet 25, the rotating head 29 rotates, causing the oil brush 30 to evenly coat the lubricating oil onto the inner wall of the steel pipe. When the piston rod of the control cylinder 17 is in the retracted state, the rotating head 29 is located within the slot 34.

[0042] Working process or usage method:

[0043] 1. When flaring, the steel pipe is placed between two clamping blocks 14. The steel pipe is horizontally clamped and fixed by two fixing cylinders 13 and two clamping blocks 14. At this time, by controlling the control cylinder 17, the insertion head 20 is inserted into the steel pipe and close to the flared end. At this time, the flaring cylinder 15 causes the flaring head 16 to move to the flared end of the steel pipe and abut against the steel pipe.

[0044] 2. By controlling the air pump 22 to introduce gas into the mounting groove 23, the annular bladder 24 expands and abuts against the inner wall of the steel pipe. Then, the air pump 22 discharges the lubricating oil into the steel pipe through the oil outlet 25. Because the annular bladder 24 blocks the oil, it prevents the oil from flowing to other parts of the pipeline. Then, by starting the gear 28, the toothed sleeve 26 is driven to rotate, which in turn drives the rotating head 29 to rotate, so that the oil brush 30 spreads the oil evenly. Then, the flaring cylinder 15 is started again, and the flaring head 16 is used to flare the pipe. When the flaring head 16 flares the pipe, it pushes the rotating head 29 and compresses the spring 18 until it moves to the predetermined position to complete the flaring.

[0045] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A flaring device for steel pipe processing, characterized in that, include: A frame (10) is fixedly connected to a side plate (11) and a fixed frame (12) opposite to the side plate (11); A flared cylinder (15) is fixedly mounted on the side plate (11); The flared mouth (16) is fixed to one end of the piston rod of the flared mouth cylinder (15); There are two fixed cylinders (13), which are fixed at the upper and lower ends of the fixed frame (12) respectively; There are two clamping blocks (14), which are arranged opposite each other. The two clamping blocks (14) are respectively fixed to one end of the piston rod of two fixed cylinders (13). The two clamping blocks (14) can move towards each other or away from each other through the two fixed cylinders (13). The control cylinder (17) is fixedly mounted on the fixed frame (12); The oiling assembly is located at one end of the piston rod of the control cylinder (17); The oiling assembly includes: A fixed sleeve (19) is fixed to one end of the piston rod of the control cylinder (17); The insertion head (20) is fixedly installed at one end of the fixed sleeve (19); The insertion head (20) has an annular cavity (33) inside. Multiple sets of circumferentially distributed oil outlets (25) are opened on the side wall of the insertion head (20). The oil outlets (25) are connected to the annular cavity (33). An oil pump (21) is fixedly installed on the fixed frame (12). The oil outlet end of the oil pump (21) is connected to the insertion head (20) through an oil delivery pipe and is connected to the annular cavity (33).

2. The flaring device for steel pipe processing according to claim 1, characterized in that: An installation groove (23) is provided on the insertion head (20). An annular bladder (24) is fixedly installed in the installation groove (23). An air pump (22) is fixedly installed on the fixing frame (12). The air outlet of the air pump (22) is connected to the insertion head (20) through an air pipe. An air outlet (32) is provided on the inner wall of the installation groove (23). The air outlet (32) is connected to the air pipe to input the air into the installation groove (23).

3. The flaring device for steel pipe processing according to claim 2, characterized in that: The fixed sleeve (19) is rotatably connected to a toothed sleeve (26) with one end passing through the insertion head (20). The toothed sleeve (26) is connected to a rotating head (29) at one end of the insertion head (20). An oil brush (30) is provided on the rotating head (29) and the oil brush (30) contacts the inner wall of the steel pipe.

4. The flaring device for steel pipe processing according to claim 3, characterized in that: The toothed sleeve (26) has teeth extending along the axis on its side wall. A motor (27) is fixedly connected to the fixed frame (12). A gear (28) is fixedly connected to the power output end of the motor (27). The gear (28) meshes with the teeth on the toothed sleeve (26).

5. A flaring device for steel pipe processing according to claim 4, characterized in that: A connecting rod (31) is slidably connected inside the toothed sleeve (26) along the axis. One end of the connecting rod (31) passes through the toothed sleeve (26) and is fixedly connected to the rotating head (29). A spring (18) is connected between the connecting rod (31) and the toothed sleeve (26). The two ends of the spring (18) are fixedly connected to the connecting rod (31) and the toothed sleeve (26) respectively.

6. A flaring device for steel pipe processing according to claim 5, characterized in that: The fixed frame (12) has a slot (34) and when the piston rod of the control cylinder (17) is in the retracted state, the rotating head (29) is located in the slot (34).

7. A flaring device for steel pipe processing according to claim 6, characterized in that: The mounting platform (35) directly opposite the slot (34) is fixedly connected to the fixed frame (12), and the control cylinder (17) is fixedly mounted on the mounting platform (35).

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