Flame cutting steel pipe girdling device

Abstract

The utility model discloses a ring cutting device for flame cutting of a steel pipe, which belongs to the technical field of flame cutting and comprises a support, a horizontally arranged circular channel is arranged in the support, abutting balls are arranged on two sides of the top of the channel, a positioning wheel is arranged in the middle of the channel, and accurate positioning and guiding of the steel pipe in the rotating process are guaranteed all the time. A driving wheel is arranged in the middle of the bottom of the channel and can rotate freely, the steel pipe can be controlled to move or rotate along the channel by adjusting the rotating direction of the driving wheel, and movement control over the steel pipe in different directions is achieved. A sliding frame is slidably installed at the bottom of the support, a rotating disc is rotatably installed on the sliding frame, and the driving wheel is rotatably installed on the rotating disc and can extend into the channel. A gear ring is fixed outside the rotating disc, a gear meshed with the gear ring is rotationally installed in the sliding frame, the first motor drives the gear to rotate, and the rotating angle of the rotating disc can be accurately controlled. In addition, the multiple rotary tables and the multiple driving wheels are arranged on the sliding frame, the supporting force on the steel pipe can be dispersed, and the cutting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flame cutting technical field, concretely relates to a flame cutting steel pipe ring cutting device. BACKGROUND

[0002] In the steel pipe manufacturing and processing industry, ring cutting is a crucial process step, the traditional flame cutting steel pipe ring cutting device, although meet the basic cutting demand to a certain extent, but in the actual operation process, still expose many deficiencies.

[0003] Firstly, the traditional device has the deficiency in the positioning and guiding of steel pipe. If the steel pipe cannot be accurately positioned and guided before entering the cutting area, it will directly affect the subsequent cutting accuracy. In addition, the traditional device often uses hard clamping method, which is easy to cause damage to the surface of the steel pipe, and even affects the overall structural strength.

[0004] Secondly, the traditional device lacks flexibility in the rotation and movement control of the steel pipe. The steel pipe needs to be accurately rotated and moved during cutting to ensure the flatness and smoothness of the cutting surface. However, the traditional device can only realize single rotation or movement function, which is difficult to meet the needs of complex cutting tasks.

[0005] Thirdly, the traditional device also has inconvenience in the lifting operation of the steel pipe. The feeding and discharging of the steel pipe usually needs manual operation, which not only wastes time and effort, but also easily causes damage to the steel pipe due to improper operation. At the same time, the traditional device often lacks accurate control in the lifting process, which is difficult to ensure the stability of the steel pipe during cutting.

[0006] In summary, the traditional flame cutting steel pipe ring cutting device has deficiencies in positioning and guiding, rotation and movement control, lifting operation, cutting efficiency and accuracy, etc. Therefore, the utility model provides a flame cutting steel pipe ring cutting device to solve the above problems. UTILITY MODEL CONTENT

[0007] In view of the above technical deficiencies, the utility model aims to provide a flame cutting steel pipe ring cutting device which can automatically complete the pushing and rotating of the steel pipe.

[0008] To solve the above technical problems, the utility model adopts the following technical scheme: the utility model provides a flame cutting steel pipe ring cutting device, which comprises a support.

[0009] The inside of the support is provided with a channel for the steel pipe to pass through.

[0010] The top of the channel is provided with two rows of abutting spheres on both sides, the middle part of the two rows of abutting spheres is provided with a positioning wheel, and the middle position of the bottom of the channel is provided with a driving wheel.

[0011] The end of the flame cutting gun is kept at a constant distance from the positioning wheel, and the end of the flame cutting gun points to the steel pipe conveyed inside the channel.

[0012] Preferably, the bottom of the support is slidably installed with a sliding frame, the sliding frame is rotatably installed with a rotating disc, and the driving wheel is rotatably installed on the rotating disc and extends from the upper surface of the rotating disc to the inside of the channel.

[0013] Preferably, the rotating disc is externally fixed with a tooth ring, the sliding frame is rotatably installed with a gear wheel engaged with the tooth ring, the sliding frame is internally fixed with a first motor for driving the gear wheel to rotate, and the rotating disc is fixed with a second motor for driving the driving wheel to rotate.

[0014] Preferably, the sliding frame is slidably installed inside the support, and the inside of the support is fixed with a linear push rod for driving the sliding frame to move.

[0015] Preferably, the number of the rotating disc and the driving wheel on the sliding frame is multiple, and the multiple driving wheels are linearly arrayed inside the sliding frame along the extension direction of the channel.

[0016] Preferably, the outer surface of the driving wheel is spherical, and the driving wheel is in point contact when contacting the steel pipe.

[0017] Preferably, the upper end of the support is fixed with a diagonal brace, the inside of the diagonal brace is installed with an elastic cylinder, and the abutting spheres are multi-directionally rotatably installed at the end of the elastic cylinder.

[0018] Preferably, the elastic cylinder comprises a pipe body and a rod body slidably installed inside the pipe body, a spring is connected between the pipe body and the rod body, the end of the rod body is provided with a ball groove, and the abutting sphere is clamped in the ball groove.

[0019] Preferably, the rotating surface of the positioning wheel is parallel to any cross section of the channel.

[0020] The beneficial effects of the utility model lie in:

[0021] The precise design of the positioning and drive wheels enables accurate guidance and rotation control of the steel pipe, ensuring cutting precision. The drive wheel's spherical outer surface ensures point contact with the steel pipe, reducing friction and wear. Furthermore, the design of the elastic cylinder and the clamping ball allows for flexible clamping and positioning of the steel pipe, further reducing deformation or damage caused by excessive clamping.

[0022] The design of the carriage and turntable allows the drive wheel to not only rotate under the action of the turntable, but also slide on the support via the carriage. This flexible movement makes it easier to feed and remove steel pipes. Attached Figure Description

[0023] Figure 1 This is an internal view of the support of this utility model.

[0024] Figure 2 This is a partial connection diagram of the positioning wheel and the clamping ball of this utility model with the steel pipe.

[0025] Figure 3 This is a schematic diagram of the structure of the elastic cylinder of this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the turntable of this utility model.

[0027] Figure 5 This is a partial connection diagram of the drive wheel and steel pipe of this utility model.

[0028] Figure 6 This is a side view of the present invention.

[0029] In the diagram: 1. Support, 2. Channel, 3. Drive wheel, 4. Turntable, 5. Carriage, 6. Gear, 7. Gear ring, 8. Linear push rod, 9. First motor, 10. Positioning wheel, 11. Flame cutting gun, 12. Spring, 13. Diagonal brace, 14. Elastic cylinder, 15. Clamping ball. Detailed Implementation

[0030] The present invention is illustrated below with specific embodiments, but these are not intended to limit the scope of the invention.

[0031] Example 1

[0032] like Figures 1-6 As shown in this embodiment, a flame cutting steel pipe circumferential cutting device is provided, including a support 1. The support 1 has a channel 2 for the steel pipe to pass through. The channel 2 is a horizontally arranged circular groove opened inside the support 1. The pipe is cut as it passes through the channel 2.

[0033] The top of the channel 2 has two rows of clamping balls 15 on both sides, and a positioning wheel 10 is located in the middle of the two rows of clamping balls 15. The rotation surface of the positioning wheel 10 is parallel to any cross-section of the channel 2, which ensures that the positioning wheel 10 always maintains a parallel contact surface with the steel pipe during rotation, thereby achieving precise positioning and guidance of the steel pipe. This design helps improve the accuracy and efficiency of cutting, and also helps protect the steel pipe from damage. The clamping balls 15 are used to help fix or guide the position of the steel pipe within the channel 2. A positioning wheel 10 is located in the middle of the two rows of clamping balls 15, which may further position or guide the steel pipe. A drive wheel 3 is located at the bottom center of channel 2. This drive wheel 3 can rotate freely. When the drive wheel 3 rotates to the same direction as the channel 2, it can move the steel pipe along channel 2. When the drive wheel 3 rotates to the direction perpendicular to channel 2, it can rotate the steel pipe. When the rotation direction of the drive wheel 3 is the same as the channel 2, it can move the steel pipe linearly along channel 2. And when the rotation direction of the drive wheel 3 is perpendicular to channel 2 (i.e., the drive wheel 3 rotates in a direction perpendicular to channel 2), it can rotate the steel pipe. This design allows for directional movement control of the steel pipe.

[0034] A flame cutting gun 11 is fixed on the support 1. The distance between the end of the flame cutting gun 11 and the positioning wheel 10 remains constant, and the end of the flame cutting gun 11 points towards the steel pipe being transported inside the channel 2. Regardless of the position of the steel pipe within the channel 2, the relative position between the flame cutting gun 11 and the steel pipe remains unchanged. The flame cutting gun 11 is used to cut the steel pipe by rotating it in a circular motion.

[0035] Example 2

[0036] like Figures 1-6 As shown, based on Embodiment 1, this embodiment provides a driving method for turntable 4, as detailed below:

[0037] A slide frame 5 is slidably mounted on the bottom of the support 1, and a turntable 4 is rotatably mounted on the slide frame 5. The drive wheel 3 is rotatably mounted on the turntable 4 and extends from the upper surface of the turntable 4 into the interior of the channel 2, so that the drive wheel 3 can not only rotate under the action of the turntable 4, but also slide on the support 1 via the slide frame 5. This flexible movement method makes it easier to feed, deliver, and rotate steel pipes, improving the adaptability and operational efficiency of the equipment.

[0038] The outer part of the rotating disc 4 is fixed with a gear ring 7, the inner part of the sliding frame 5 is rotatably installed with a gear 6 engaged with the gear ring 7, the inner part of the sliding frame 5 is fixed with a first motor 9 for driving the gear 6 to rotate, the rotating disc 4 is fixed with a second motor for driving the driving wheel 3 to rotate, the engagement of the gear 6 and the gear ring 7 driven by the first motor 9 can accurately control the rotation angle of the rotating disc 4, the second motor drives the driving wheel 3 to rotate, and the driving wheel 3 abuts against the steel pipe to drive the steel pipe to move, when the pushing direction of the driving wheel 3 is parallel to the steel pipe, the steel pipe moves axially, and when the pushing direction of the driving wheel 3 is perpendicular to the axis of the steel pipe, the steel pipe rotates.

[0039] The sliding frame 5 is slidably installed in the inner part of the support 1, the inner part of the support 1 is fixed with a linear push rod 8 for driving the sliding frame 5 to move, the linear push rod 8 can accurately control the up-down movement of the sliding frame 5, thereby realizing the lifting operation of the steel pipe. This design makes it more convenient to send the steel pipe into or out of the equipment.

[0040] The number of the rotating disc 4 and the driving wheel 3 on the sliding frame 5 is multiple, multiple driving wheels 3 are linearly arrayed in the sliding frame 5 along the extension direction of the channel 2, and the design of multiple driving wheels 3 can disperse the supporting force on the steel pipe, so that the steel pipe is more stable during rotation. At the same time, multiple driving wheels 3 can also improve the cutting efficiency of the equipment, because multiple steel pipes can be processed at the same time or faster cutting operation can be performed.

[0041] Embodiment three

[0042] As shown in the drawings, Figures 1-6 On the basis of embodiment one and embodiment two, the driving mode of the driving wheel 3 is provided in this embodiment, which is as follows:

[0043] The outer surface of the driving wheel 3 is spherical, the driving wheel 3 is in point contact when it contacts with the steel pipe, and the spherical design can automatically adjust the angle when the driving wheel 3 contacts with the steel pipe, so as to ensure that the contact with the steel pipe is always point contact. This design can reduce the friction and wear of the steel pipe, and at the same time improve the cutting accuracy and efficiency.

[0044] The upper end of the support 1 is fixed with a diagonal brace 13, the inner part of the diagonal brace 13 is installed with an elastic cylinder 14, and the end part of the elastic cylinder 14 is installed with a plurality of directionally rotating abutting spheres 15. The design of the elastic cylinder 14 and the abutting spheres 15 can realize flexible clamping and positioning of the steel pipe. This design not only can improve the stability of the steel pipe, but also can reduce the deformation or damage of the steel pipe caused by clamping too tightly, and cooperate with the positioning wheel 10 to more accurately position the steel pipe.

[0045] The elastic cylinder 14 comprises a tube body and a rod body slidingly installed inside the tube body, a spring 12 is connected between the tube body and the rod body, the end of the rod body is provided with a ball groove, the abutting ball 15 is clamped inside the ball groove, and the spring 12 is designed so that the elastic cylinder 14 has a certain buffering effect when subjected to external force, thereby protecting the steel pipe from being damaged. At the same time, the design of the rod body and the ball groove can ensure that the abutting ball 15 always remains in the correct position, realizing stable clamping of the steel pipe.

[0046] Working principle:

[0047] The steel pipe enters the device through the top of the channel 2 and is preliminarily positioned and guided by the two rows of abutting balls 15. In the middle, the positioning wheel 10 precisely positions and guides the steel pipe with its rotating surface parallel to any cross section of the channel 2, ensuring that the steel pipe always maintains a stable posture during rotation.

[0048] The driving wheel 3 is installed on the rotating disc 4, and the rotating disc 4 realizes precise rotation control through the meshing of the driving gear 6 and the toothed ring 7 driven by the first motor 9. The second motor drives the driving wheel 3 to rotate, when the rotation direction of the driving wheel 3 is consistent with the direction of the channel 2, it drives the steel pipe to move linearly along the channel 2; when the rotation direction of the driving wheel 3 is perpendicular to the direction of the channel 2, it drives the steel pipe to rotate.

[0049] The sliding carriage 5 is slidingly installed inside the support 1 and is precisely controlled to move up and down by the linear push rod 8, thereby realizing the lifting operation of the steel pipe. This design makes it more convenient to send the steel pipe into or out of the equipment.

[0050] The flame cutting gun 11 is fixed on the support 1, the end of which maintains a constant distance from the positioning wheel 10 and is directed at the steel pipe conveyed inside the channel 2. Regardless of the position of the steel pipe in the channel 2, the relative position of the flame cutting gun 11 and the steel pipe remains unchanged. Through the rotation of the steel pipe and the movement of the flame cutting gun 11, the annular cutting of the steel pipe is completed.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present application can still be modified or replaced equivalently without departing from the spirit and scope of the present application, and any modification or partial replacement should be covered in the scope of the claims of the present application.

Claims

1. A flame cutting steel pipe ring cutting device, comprising a support (1), characterized in that: the inside of the support (1) is provided with a channel (2) for the passage of a steel pipe; both sides of the top of the channel (2) are provided with two rows of abutting spheres (15), the middle part of the two rows of abutting spheres (15) is provided with a positioning wheel (10), the middle position of the bottom of the channel (2) is provided with a driving wheel (3), the driving wheel (3) can rotate freely, when the driving wheel (3) rotates to the same direction as the direction of the channel (2), the driving wheel (3) can drive the steel pipe to move along the channel (2), when the driving wheel (3) rotates to the direction perpendicular to the direction of the channel (2), the driving wheel (3) can drive the steel pipe to rotate; wherein the support (1) is fixed with a flame cutting gun (11), the distance between the end of the flame cutting gun (11) and the positioning wheel (10) remains unchanged, and the end of the flame cutting gun (11) points to the steel pipe conveyed inside the channel (2).

2. A flame cutting ring cutting device for cutting a steel pipe according to claim 1, wherein The bottom of the support (1) is slidingly installed with a sliding frame (5), the sliding frame (5) is rotatably installed with a rotating disc (4), the driving wheel (3) is rotatably installed on the rotating disc (4) and extends from the upper surface of the rotating disc (4) to the inside of the channel (2).

3. A flame cutting ring cutting device for cutting a steel pipe according to claim 2, wherein The outside of the rotating disc (4) is fixed with a gear ring (7), the inside of the sliding frame (5) is rotatably installed with a gear (6) engaged with the gear ring (7), the inside of the sliding frame (5) is fixed with a first motor (9) for driving the gear (6) to rotate, the rotating disc (4) is fixed with a second motor for driving the driving wheel (3) to rotate.

4. A flame cutting ring cutting device for cutting a steel pipe according to claim 2, wherein The sliding frame (5) is slidingly installed inside the support (1), the inside of the support (1) is fixed with a linear push rod (8) for driving the sliding frame (5) to move.

5. A flame cutting ring cutting device for cutting a steel pipe according to claim 2, wherein The number of the rotating disc (4) and the driving wheel (3) on the sliding frame (5) is multiple, the multiple driving wheels (3) are linearly arrayed inside the sliding frame (5) along the extension direction of the channel (2).

6. A flame cutting ring cutting device for cutting a steel pipe according to claim 1, wherein The outer surface of the driving wheel (3) is spherical, the driving wheel (3) is in point contact when contacting with the steel pipe.

7. A flame cutting ring cutting device for cutting a steel pipe according to claim 1, wherein The upper end of the support (1) is fixed with an inclined strut (13), the inside of the inclined strut (13) is installed with an elastic cylinder (14), the abutting sphere (15) is multi-directionally rotatably installed at the end of the elastic cylinder (14).

8. A flame cutting ring cutting device for cutting a steel pipe according to claim 7, wherein The elastic cylinder (14) comprises a tube body and a rod body slidingly installed inside the tube body, a spring (12) is connected between the tube body and the rod body, the end of the rod body is provided with a ball groove, and the abutting sphere (15) is clamped inside the ball groove.

9. A flame cutting ring cutting device for cutting a steel pipe according to claim 1, wherein The rotating surface of the positioning wheel (10) is parallel to any cross section of the channel (2).

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