Large pipeline vertical cutting system

Abstract

The invention provides a large pipeline vertical cutting system which comprises a cutting control mechanism, a steel pipe rotating mechanism, a plasma cutting mechanism and an X-Z walking mechanism, the steel pipe rotating mechanism, the plasma cutting mechanism and the X-Z walking mechanism are in electric connection and communication connection with the cutting control mechanism, the steel pipe rotating mechanism and the X-Z walking mechanism are arranged in a split mode, and the steel pipe rotating mechanism comprises a platform support. The driving part A is arranged on the platform support, the round cake platform is horizontally placed on the platform support and is in transmission connection with the driving part A, and the round cake platform has the freedom degree of rotating around the axis of the round cake platform; the X-Z walking mechanism comprises an X-direction walking part and a Z-direction walking part, the Z-direction walking part is vertically arranged, and the X-direction walking part is horizontally arranged on the Z-direction walking part through a sliding installation base and has the freedom degree of vertical movement relative to the Z-direction walking part. One end of the X-direction walking part points to the steel pipe rotating mechanism, and a cutting gun head of the plasma cutting mechanism is located at the end, close to the steel pipe rotating mechanism, of the X-direction walking part and points to the steel pipe rotating mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of large-scale pipeline processing equipment and relates to a pipeline cutting system, in particular to a large-scale pipeline vertical cutting system. Background Art

[0002] Large pipes are indispensable in urban water supply and drainage systems, gas pipeline systems, heating pipeline systems, rainwater pipeline systems, etc. In order to meet the laying requirements, large steel pipes need not only to be cut into straight pipes, but also to be cut into intersecting line tracks, beveled, and other special-shaped cuts to make shrimp bends, tees, beveled pipes, intersecting line pipes that match tees, etc., so as to meet the different redirection needs of the pipelines.

[0003] In the prior art, when cutting large steel pipes into straight pipes, it is often only necessary to use cutting equipment to perform straight cutting or circular cutting on the large pipes; however, in response to the demand for special-shaped cutting of large pipes, there is no automated system in the prior art to provide automated special-shaped cutting. When there is a need for special-shaped cutting, workers are required to manually cut the pipes along the cutting track with a handheld cutting machine, which is not only time-consuming and labor-intensive, but also has low cutting efficiency. It is also prone to cutting errors, which affects the subsequent welding of shrimp bends, tees, etc. In addition, with the progress of urban and township construction, the demand for the use of special-shaped pipes and joints such as beveled pipes, intersecting line pipes, shrimp bends, and tees has increased sharply, and traditional manual cutting can no longer meet production capacity needs.

[0004] Based on this, it is necessary to provide an automated equipment that can perform special-shaped cutting on large pipes to meet the production needs of efficient and automated special-shaped cutting of large pipes. Summary of the invention

[0005] The purpose of the present invention is to provide a large-scale pipe vertical cutting system to solve the technical problems existing in the prior art that large-scale steel pipes cannot be automatically cut into special shapes, the labor intensity is high, and the production efficiency is low.

[0006] To achieve the above purpose, the specific technical solutions of the present invention are as follows:

[0007] A large-scale vertical pipe cutting system, comprising a cutting control mechanism, a steel pipe rotating mechanism, a plasma cutting mechanism, and an XZ traveling mechanism which are electrically and communicatively connected to the cutting control mechanism respectively, wherein the steel pipe rotating mechanism and the XZ traveling mechanism are separately arranged, and the steel pipe rotating mechanism comprises a platform support, a driving part A arranged on the platform support, and a circular platform horizontally placed on the platform support and drivingly connected to the driving part A, wherein the circular platform has the degree of freedom to rotate around its own axis;

[0008] The XZ walking mechanism comprises an X-direction walking part and a Z-direction walking part, wherein the Z-direction walking part is vertically arranged, and the X-direction walking part is horizontally arranged on the Z-direction walking part through a sliding mounting seat, and has the freedom to move vertically relative to the Z-direction walking part;

[0009] One end of the X-direction walking part points to the steel pipe rotating mechanism, the cutting gun head of the plasma cutting mechanism is located at one end of the X-direction walking part close to the steel pipe rotating mechanism and points to the steel pipe rotating mechanism, and the cutting gun head has the freedom to move horizontally relative to the sliding mounting seat driven by the X-direction walking part.

[0010] The driving part A is arranged in the platform bracket, including a motor A and a reducer A drivingly connected to the motor A, the motor A is a servo motor, and the reducer A is a planetary reducer; the circular cake platform is drivingly connected to the output end of the reducer A.

[0011] The Z-direction walking part includes a placement seat, a vertical beam vertically arranged on the placement seat, a motor B arranged on the top of the vertical beam, a reducer B transmission-connected to the motor B, a ball screw vertically arranged on the side of the vertical beam and connected to the reducer B through a coupling, and a linear guide rail arranged parallel to the ball screw on the same side of the vertical beam. The sliding mounting seat is threadedly matched with the ball screw, the linear guide rail passes through the sliding mounting seat, and the X-direction walking part is fixed on the sliding mounting seat.

[0012] The X-direction walking portion includes a crossbeam, a motor C, a rack, and a sliding guide rail. A sliding guide sleeve is horizontally arranged on the side of the sliding mounting seat away from the Z-direction walking portion. The sliding guide rail is transversely arranged on the crossbeam. The crossbeam is arranged on the sliding mounting seat through the sliding guide rail and the sliding guide sleeve; the motor C is fixed on the sliding mounting seat, the rack is transversely arranged on the crossbeam, and the rack and the motor C are connected through a reducer C.

[0013] The cutting gun head is arranged at one end of the steel pipe rotating mechanism of the X-direction walking part through a Y-direction rotating part. The Y-direction rotating part includes an electric dividing plate. The dividing plane of the electric dividing plate is vertically arranged and electrically connected to the cutting control mechanism. The cutting gun head is fixed at the center of the electric dividing plate and has the freedom to swing under the drive of the electric dividing plate.

[0014] The plasma cutting mechanism includes a plasma gas cutting machine body, a plasma water tank, a gas pressure tank and an air compressor. The plasma gas cutting machine body is electrically connected to the cutting control mechanism; the water outlet and the water return port of the plasma water tank are respectively connected to the water inlet A and the water return port A of the plasma gas cutting machine body through pipelines; the air outlet of the gas pressure tank is connected to the air inlet of the plasma gas cutting machine through a pipeline; the air compressor is connected to the gas pressure tank through a pipeline; and the cutting gun head is connected to the plasma gas cutting machine body.

[0015] The motor B is a servo motor, the reducer B is a planetary reducer, and the number of the linear guide rails is two.

[0016] The number of the sliding guide rails and the number of the sliding guide sleeves are two respectively, which cooperate with each other.

[0017] The cutting control mechanism includes a control box, a PLC controller arranged in the control box, a USB program input port arranged on the surface of the control box and connected to the PLC controller for communication, and a control button. The steel pipe rotating mechanism, plasma cutting mechanism, and XZ walking mechanism are respectively electrically and communicatively connected to the PLC controller.

[0018] The beneficial effects of the present invention are as follows: the present invention provides a large-scale pipe vertical cutting system, sets a steel pipe rotating mechanism, and places the large-scale steel pipe thereon, so that the large-scale steel pipe has the freedom to rotate around the axis of the steel pipe rotating mechanism; sets an XZ walking mechanism and divides it into an X-direction walking part and a Z-direction walking part, and sets the cutting gun head of the plasma cutting mechanism at the end of the X-direction walking mechanism, so that the cutting gun head has the freedom to move up and down relative to the vertical beam to adjust the cutting height of the large-scale steel pipe, and to move left and right relative to the vertical beam to adjust the diameter size of the large-scale steel pipe that can be cut; in this technology, the present invention sets an electric dividing plate at the end of the horizontal beam, and sets the dividing plane to a vertical state, so that the cutting gun head has the freedom to swing in the vertical plane, so as to flexibly adjust the cutting angle relative to the large-scale steel pipe during the cutting process.

[0019] The technical solution provided by the present invention is to input a pre-compiled program into the PLC controller of the cutting control mechanism through the USB program input port, and use the PLC controller to control the rotation of the steel pipe rotating mechanism. At the same time, the XZ walking mechanism and the Y-axis rotating part are controlled to drive the cutting gun head to move in a straight line along the X-axis and the Z-axis and swing around the Y-axis during the process of cutting the steel pipe, so that the cutting gun head can not only perform straight cutting and circular cutting on large steel pipes, but also drive the cutting gun head to perform various special-shaped cutting such as intersection lines and oblique lines on large steel pipes through the composite movement of the X-axis, Y-axis and Z-axis, thereby meeting the needs of cutting large steel pipes to manufacture special-shaped pipes and joints such as intersection lines, shrimp bends and tees.

[0020] The technical solution provided by the present invention fills the gap in the existing technology for automated special-shaped cutting of large steel pipes, effectively reduces the difficulty of bevel cutting and intersecting line cutting of large steel pipes, improves cutting efficiency, and reduces the degree of dependence of special-shaped cutting on workers, thereby effectively improving the production capacity of special-shaped pipes and joints such as bevel cut pipes, intersecting line pipes, shrimp bends, and tees, and improving the production efficiency of the enterprise. It is suitable for promotion and application in large steel pipe processing enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a simplified structural schematic diagram of the present invention;

[0022] Figure 2 It is a simplified structural schematic diagram of the XZ walking mechanism in the present invention;

[0023] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0024] Figure 4 It is a simplified structural schematic diagram of the steel pipe rotating mechanism in the present invention.

[0025] Explanation of marks in the figure: 1. Cutting control mechanism, 2. Steel pipe rotating mechanism, 3. Platform bracket, 4. Round cake platform, 5. X-axis walking part, 6. Z-axis walking part, 7. Sliding mounting seat, 8. Cutting gun head, 9. Placement seat, 10. Vertical beam, 11. Motor B, 12. Reducer B, 13. Ball screw, 14. Linear guide, 15. Crossbeam, 16. Motor C, 18. Sliding guide, 19. Electric dividing plate, 20. Plasma gas cutting machine body, 21. Plasma water tank, 22. Gas pressure tank, 23. Air compressor, 24. Reducer A, 25. Large steel pipe. DETAILED DESCRIPTION

[0026] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 4As shown, the present invention provides a large-scale pipeline vertical cutting system, which includes a cutting control mechanism 1 for inputting programs and controlling other mechanisms, a steel pipe rotating mechanism 2, a plasma cutting mechanism, and an XZ walking mechanism which are electrically and communicatively connected to the cutting control mechanism 1, respectively. The steel pipe rotating mechanism 2 and the XZ walking mechanism are separately arranged. The steel pipe rotating mechanism 2 includes a platform bracket 3, a driving part A arranged on the platform bracket 3, and a circular cake platform 4 horizontally placed on the platform bracket 3 and drivingly connected to the driving part A. The circular cake platform 4 has the freedom to rotate around its own axis. A large-scale steel pipe 25 is placed on the circular cake platform 4. Driven by the driving part A, the circular cake and the large-scale steel pipe 25 thereon rotate around the circular cake axis, thereby facilitating the plasma cutting mechanism to cut different positions of the large-scale steel pipe 25.

[0028] The XZ walking mechanism is a composite walking mechanism, including an X-direction walking portion 5 and a Z-direction walking portion 6, wherein the Z-direction walking portion 6 is vertically arranged, and the X-direction walking portion 5 is horizontally arranged on the Z-direction walking portion 6 through a sliding mounting seat 7, and the Z-direction walking portion 6 drives the sliding mounting seat 7 to move vertically relative to the Z-direction walking portion 6 so that the X-direction walking portion 5 has the freedom to move vertically relative to the Z-direction walking portion 6;

[0029] One end of the X-axis walking part 5 points to the steel pipe rotating mechanism 2, and the cutting gun head 8 of the plasma cutting mechanism is located at one end of the X-axis walking part 5 close to the steel pipe rotating mechanism 2 and points to the steel pipe rotating mechanism 2. The X-axis walking part 5 moves horizontally in a straight line relative to the mounting seat, so that the cutting gun head 8 has the freedom to move horizontally relative to the sliding mounting seat 7 driven by the X-axis walking part 5.

[0030] Further, such as Figure 4 As shown, the driving part A in this embodiment is arranged in the platform bracket 3, including a motor A and a reducer A24 transmission-connected to the motor A, the motor A is a servo motor, and the reducer A24 is a planetary reducer; the circular platform 4 is transmission-connected to the output end of the reducer A24, and the axis center of the circular platform 4 coincides with the axis center of the reducer A24. Driven by the reducer A24, the circular platform 4 rotates around its own axis center, thereby driving the large steel pipe 25 to rotate around the vertical Z axis.

[0031] In addition, if Figure 2As shown, the Z-direction walking part 6 in this embodiment is a mechanical structure that walks in the vertical direction, including a placement seat 9, a vertical beam 10 vertically arranged on the placement seat 9, a motor B11 arranged on the top of the vertical beam 10, a reducer B12 connected to the motor B11, a ball screw 13 vertically arranged on the side of the vertical beam 10 and connected to the reducer B12 through a coupling, and a linear guide 14 arranged parallel to the ball screw 13 on the same side of the vertical beam 10, the sliding mounting seat 7 is threadedly matched with the ball screw 13, the linear guide 14 passes through the sliding mounting seat 7, and the X-direction walking part 5 is fixed on the sliding mounting seat 7. In the Z-direction walking part 6, the motor B11 drives the ball screw 13 to rotate through the reducer B12, and drives the sliding mounting seat 7 to move up and down relative to the vertical beam 10, and the linear guide 14 is used to provide a limit for the sliding mounting seat 7 and limit the movement of the sliding mounting seat 7 to only move up and down in the vertical Z-axis direction.

[0032] Similar to the Z-direction walking part 6, the X-direction walking part 5 in this embodiment is a mechanical structure that walks in the horizontal direction, which specifically includes a crossbeam 15, a motor C16, a rack, and a sliding guide rail 18. A sliding guide sleeve is horizontally arranged on the side of the sliding mounting seat 7 away from the vertical beam 10, and the sliding guide rail 18 is transversely arranged on the crossbeam 15. The crossbeam 15 is arranged on the sliding mounting seat 7 through the sliding guide sleeve via the sliding guide rail 18; the motor C16 is fixed on the sliding mounting seat 7, and the rack is transversely arranged on the crossbeam 15, located on the side of the crossbeam 15 close to the sliding mounting seat 7, and the rack is connected to the motor C16 through a reducer C. In the X-direction walking part 5, the motor C16 drives the rack to slide relative to the sliding mounting seat 7 through the reducer C, thereby driving the crossbeam 15 with the fixed rack to move left and right relative to the sliding mounting seat 7 and the vertical beam 10. The sliding guide rail 18 and the sliding guide sleeve are used to provide a limit for the crossbeam 15 and limit the movement of the crossbeam 15 to only move left and right on the horizontal X-axis.

[0033] Furthermore, in order to facilitate the adjustment of the cutting angle of the cutting gun head 8 relative to the large steel pipe 25, the cutting gun head 8 in this embodiment is arranged at one end of the X-direction walking part 5 pointing to the steel pipe rotating mechanism 2 through the Y-direction rotating part, so that the cutting gun head 8 can swing around the Y-axis. Specifically, Figure 3 As shown, the Y-axis rotating part in this embodiment includes an electric dividing plate 19, the dividing plane of the electric dividing plate 19 is vertically arranged and electrically connected to the cutting control mechanism 1, and the cutting gun head 8 is fixed at the center of the electric dividing plate 19 and has the freedom to swing in the vertical plane driven by the electric dividing plate 19.

[0034] Furthermore, the plasma cutting mechanism in this embodiment includes a plasma gas cutting machine body 20, a plasma water tank 21, a gas pressure tank 22 and an air compressor 23, wherein the plasma gas cutting machine body 20 is electrically connected to the cutting control mechanism 1, and the cutting gun head 8 is connected to the plasma gas cutting machine body 20. Under the control of the cutting control mechanism 1, the plasma gas cutting machine body 20 is used to control the cutting start and stop of the cutting gun head 8; the water outlet and the water return port of the plasma water tank 21 are respectively connected to the water inlet A and the water return port A of the plasma gas cutting machine body 20 through pipelines to provide cooling water for the plasma gas cutting machine body 20 and the cutting gun head 8; the air outlet of the gas pressure tank 22 is connected to the air inlet of the plasma gas cutting machine through a pipeline to provide specified gas for the plasma gas cutting machine body 20; the air compressor 23 is connected to the gas pressure tank 22 through a pipeline to pressurize the gas pressure tank 22.

[0035] Furthermore, the motor B11 in this embodiment is a servo motor, and the reducer B12 is a planetary reducer; in order to improve the stability of the sliding mounting seat 7 during the sliding process, the number of the linear guide rails 14 is two; in order to improve the stability of the beam 15 during the sliding process, the number of the sliding guide rails 18 and the number of the sliding guide sleeves are two respectively, which cooperate with each other.

[0036] Furthermore, the cutting control mechanism 1 includes a control box, a PLC controller arranged in the control box, a USB program input port arranged on the surface of the control box and connected to the PLC controller, and a control button. The steel pipe rotating mechanism 2, the plasma cutting mechanism, the XZ walking mechanism and the Y-axis rotating part are respectively connected to the PLC controller electrically and in communication. When in use, the staff inputs the pre-programmed program into the PLC controller through the USB program input port, and then controls the steel pipe rotating mechanism 2 to rotate at the speed set by the program, controls the X-axis walking part 5 and the Z-axis walking part 6 to move at the speed set by the program, controls the electric indexing plate 19 of the Y-axis rotating part to adjust the rotation angle, and controls the water supply, air supply and cutting start and stop of the plasma cutting mechanism.

[0037] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A large-scale vertical pipe cutting system, characterized in that: It comprises a cutting control mechanism (1), a steel pipe rotating mechanism (2) electrically and communicatively connected to the cutting control mechanism (1), a plasma cutting mechanism, and an XZ walking mechanism, wherein the steel pipe rotating mechanism (2) and the XZ walking mechanism are separately arranged, and the steel pipe rotating mechanism (2) comprises a platform support (3), a driving part A arranged on the platform support (3), and a circular platform (4) horizontally placed on the platform support (3) and drivingly connected to the driving part A, wherein the circular platform (4) has the freedom to rotate around its own axis. The XZ walking mechanism comprises an X-direction walking portion (5) and a Z-direction walking portion (6), wherein the Z-direction walking portion (6) is arranged vertically, and the X-direction walking portion (5) is arranged horizontally on the Z-direction walking portion (6) via a sliding mounting seat (7) and has the freedom to move vertically relative to the Z-direction walking portion (6); One end of the X-direction walking portion (5) points toward the steel pipe rotating mechanism (2); a cutting gun head (8) of the plasma cutting mechanism is located at one end of the X-direction walking portion (5) close to the steel pipe rotating mechanism (2) and points toward the steel pipe rotating mechanism (2); and the cutting gun head (8) has the freedom to move horizontally relative to the sliding mounting seat (7) under the drive of the X-direction walking portion (5).

2. A large-scale vertical pipe cutting system according to claim 1, characterized in that: The driving part A is arranged in the platform bracket (3), and comprises a motor A and a reducer A (24) drivingly connected to the motor A, wherein the motor A is a servo motor and the reducer A (24) is a planetary reducer; the circular cake platform (4) is drivingly connected to the output end of the reducer A (24).

3. A large-scale vertical pipe cutting system according to claim 1, characterized in that: The Z-direction walking portion (6) comprises a placement seat (9), a vertical beam (10) vertically arranged on the placement seat (9), a motor B (11) arranged on the top of the vertical beam (10), a reducer B (12) drivingly connected to the motor B (11), a ball screw (13) vertically arranged on the side of the vertical beam (10) and connected to the reducer B (12) through a coupling, and a linear guide rail (14) arranged parallel to the ball screw (13) on the same side of the vertical beam (10), the sliding mounting seat (7) is threadedly matched with the ball screw (13), the linear guide rail (14) passes through the sliding mounting seat (7), and the X-direction walking portion (5) is fixed on the sliding mounting seat (7).

4. A large-scale vertical pipe cutting system according to claim 1, characterized in that: The X-direction walking portion (5) comprises a crossbeam (15), a motor C (16), a rack, and a sliding guide rail (18); a sliding guide sleeve is horizontally arranged on the side of the sliding mounting seat (7) away from the Z-direction walking portion (6); the sliding guide rail (18) is transversely arranged on the crossbeam (15); the crossbeam (15) is arranged on the sliding mounting seat (7) through the sliding guide sleeve via the sliding guide rail (18); the motor C (16) is fixed on the sliding mounting seat (7); the rack is transversely arranged on the crossbeam (15); and the rack and the motor C (16) are connected in transmission via a reducer C.

5. A large-scale vertical pipe cutting system according to claim 1, characterized in that: The cutting gun head (8) is arranged at one end of the X-direction walking part (5) pointing to the steel pipe rotating mechanism (2) through a Y-direction rotating part, and the Y-direction rotating part includes an electric dividing plate (19). The dividing plane of the electric dividing plate (19) is vertically arranged and electrically connected to the cutting control mechanism (1). The cutting gun head (8) is fixed at the center of the electric dividing plate (19) and has the freedom to swing under the drive of the electric dividing plate (19).

6. A large-scale vertical pipe cutting system according to claim 1, characterized in that: The plasma cutting mechanism comprises a plasma gas cutting machine body (20), a plasma water tank (21), a gas pressure tank (22) and an air compressor (23); the plasma gas cutting machine body (20) is electrically connected to the cutting control mechanism (1); the water outlet and the water return port of the plasma water tank (21) are respectively connected to the water inlet A and the water return port A of the plasma gas cutting machine body (20) through pipelines; the air outlet of the gas pressure tank (22) is connected to the air inlet of the plasma gas cutting machine through a pipeline; the air compressor (23) is connected to the gas pressure tank (22) through a pipeline; and the cutting gun head (8) is connected to the plasma gas cutting machine body (20).

7. A large-scale vertical pipe cutting system according to claim 3, characterized in that: The motor B (11) is a servo motor, the reducer B (12) is a planetary reducer, and the number of the linear guide rails (14) is two.

8. A large-scale vertical pipe cutting system according to claim 4, characterized in that: The number of the sliding guide rails (18) and the number of the sliding guide sleeves are respectively two which cooperate with each other.

9. A large-scale vertical pipe cutting system according to claim 1, characterized in that: The cutting control mechanism (1) comprises a control box, a PLC controller arranged in the control box, a USB program input port arranged on the surface of the control box and connected to the PLC controller for communication, and a control button. The steel pipe rotating mechanism (2), the plasma cutting mechanism, and the XZ walking mechanism are respectively electrically connected and communicatively connected to the PLC controller.

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