Metal pipe laser cutting device

Abstract

The invention discloses a laser cutting device for a metal pipe. The laser cutting device comprises a mounting plate, the cutting mechanism comprises a bottom plate fixedly connected to the right side of the mounting plate, a blanking port is formed in the inner bottom of the bottom plate, a U-shaped plate is fixedly connected to the upper end of the bottom plate, a horizontal plate is fixedly connected to the upper end of the U-shaped plate, and a sliding cylinder is fixedly connected to the lower end of the horizontal plate; a sliding block capable of sliding up and down is arranged in the sliding cylinder, a connecting column is fixedly connected to the lower end of the sliding block, and a laser cutting head is installed at the lower end of the connecting column; and the limiting mechanism comprises a moving plate arranged above the mounting plate, and a second motor is mounted on the left side of the moving plate. According to the device, automatic rotating cutting operation of the pipe fitting can be achieved, pipe fitting cutting is achieved, splashed sparks generated in the cutting process can be blocked, the actual safety is improved, in addition, smoke generated in laser cutting can be sucked away, and the surrounding environment is prevented from being affected.

Description

Technical Field

[0001] The present invention relates to the field of pipe cutting, and particularly to a laser cutting device for metal pipes. Background Art

[0002] In the field of metal processing, the cutting of metal pipes is a common and key process. Traditional metal pipe cutting methods mostly rely on mechanical cutting or manual operation, which not only have limited cutting accuracy and low efficiency, but also are difficult to meet the cutting tasks with high-quality requirements.

[0003] With the development of laser technology, laser cutting has gradually been applied to metal pipe processing. However, existing laser cutting devices lack effective blocking measures during application, and the splashing of sparks is likely to cause safety accidents, threatening operators and surrounding equipment. In addition, the fumes generated during cutting not only contain harmful substances, pollute the working environment, but also pose a hazard to the physical health of operators. Therefore, how to solve the above problems needs to be considered. Summary of the Invention

[0004] The purpose of the present invention is to solve the drawbacks existing in the prior art, and to propose a laser cutting device for metal pipes. This device can realize the cutting operation of automatic rotation of pipe fittings, achieve the cutting of pipe fittings, can block the splashing sparks generated during the cutting process, improve the actual safety, and in addition, can also suck out the fumes generated by laser cutting to avoid affecting the surrounding environment.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A laser cutting device for metal pipes includes a mounting plate; a cutting mechanism, the cutting mechanism includes a bottom plate fixedly connected to the right side of the mounting plate, a material dropping port is opened at the inner bottom of the bottom plate, a U-shaped plate is fixedly connected to the upper end of the bottom plate, a horizontal plate is fixedly connected to the upper end of the U-shaped plate, a sliding cylinder is fixedly connected to the lower end of the horizontal plate, a sliding block that can slide up and down is arranged in the sliding cylinder, a connecting column is fixedly connected to the lower end of the sliding block, and a laser cutting head is installed at the lower end of the connecting column; a limiting mechanism, the limiting mechanism includes a moving plate arranged above the mounting plate, a second motor is installed on the left side of the moving plate, the second motor is a double-shaft motor, the right output shaft of the second motor penetrates the moving plate and is fixedly connected to a three-jaw chuck; a moving mechanism, the moving mechanism is used to move the limiting mechanism; a fume removal mechanism, the fume removal mechanism is used to remove the fumes generated during the cutting process.

[0007] Preferably, two connecting frames are symmetrically and fixedly connected to the lower end of the mounting plate, a support plate is fixedly connected to the lower ends of the two connecting frames together, and a universal wheel is installed at the lower end of the support plate.

[0008] Preferably, a wedge-shaped guide block is fixedly connected to the left side of the connecting column. The upper end of the sliding block is elastically connected to the inner top of the sliding cylinder through a spring. The upper end of the sliding block is fixedly connected to a guide rod. The upper end of the guide rod penetrates through the inner top of the horizontal plate and is slidably connected.

[0009] Preferably, the moving mechanism includes a chute opened at the upper end of the mounting plate. A threaded rod is rotatably connected between the left and right inner walls of the chute. A slider is threadedly connected to the threaded rod. The slider is slidably connected to the inner wall of the chute. The upper end of the slider is fixedly connected to a connecting block. The upper end of the connecting block is fixedly connected to the lower end of the moving plate.

[0010] Preferably, a first motor is installed on the left side of the mounting plate. The output shaft of the first motor extends into the chute and is fixedly connected to the left end of the threaded rod. The first motor is a servo motor capable of changing the rotation direction.

[0011] Preferably, an electric telescopic rod is fixedly connected to the upper end of the mounting plate. The telescopic end of the electric telescopic rod is fixedly connected to a support block. An arc-shaped groove is provided at the upper end of the support block.

[0012] Preferably, the flue gas removal mechanism includes an L-shaped frame fixedly connected to the upper end of the moving plate. A piston cylinder is installed at the lower end of the horizontal part of the L-shaped frame. A piston block that can slide up and down is arranged in the piston cylinder. The left output shaft of the second motor is fixedly connected to a turntable. A rotating rod is rotatably connected to the eccentric part on the left side of the turntable. The other end of the rotating rod is rotatably connected to the lower end of the piston block. A filter box is installed on the right side of the U-shaped plate. The inner bottom of the filter box is communicated with the inner space of the U-shaped plate through a communicating pipe. The inner bottom of the filter box is communicated with the inner top space of the piston cylinder through a one-way pipe. The inner bottom space of the piston cylinder is communicated with the outside through a one-way port.

[0013] Preferably, one-way valves are installed inside both the one-way pipe and the one-way port. The flow direction of the one-way valve inside the one-way port is from the piston cylinder to the outside unidirectionally, and the flow direction of the one-way valve inside the one-way pipe is from the filter box to the piston cylinder unidirectionally.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The device is equipped with universal wheels under the support plate, which can be easily moved to the required working position and flexibly adapt to different processing scenarios. The three-jaw chuck can quickly and firmly limit and fix the left end of the pipe. With the support of the arc-shaped groove of the support block, it ensures the stable position of the pipe during cutting, improving the operation convenience and cutting stability.

[0016] 2. The cutting mechanism utilizes the cooperation of the wedge-shaped guide block, the sliding block, and the spring. When the pipe moves to the right, it can adaptively adjust the distance between the laser cutting head and the pipe fitting. This adaptive adjustment method does not require frequent manual intervention, can always maintain an appropriate cutting distance, effectively ensure the cutting effect, and improve the cutting quality.

[0017] 3. The first motor drives the threaded rod to rotate, causing the slider to slide in the chute, and then driving the limiting mechanism and the pipe to move for feeding. Cooperating with the rotatable three-jaw chuck and the laser cutting head, it can accurately control the feeding distance and cutting position of the pipe. By repeating the operation, the pipe can be cut into multiple segments to meet diverse cutting requirements.

[0018] 4. The flue gas removal mechanism drives the turntable by the second motor, driving the piston block to slide up and down in the piston cylinder. Through the cooperation of the one-way pipe and the one-way port, a negative pressure is formed to suck the flue gas generated by cutting into the filter box. After adsorbing harmful substances with the activated carbon filter element, clean gas is discharged, effectively avoiding flue gas pollution to the surrounding environment and ensuring the health of the operators.

[0019] 5. By using the combination of mechanisms such as the U-shaped plate and the horizontal plate, and enclosing the cutting area, the situation of spark splashing during cutting can be avoided, improving the actual safety. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of a metal pipe laser cutting device proposed by the present invention;

[0021] Figure 2 is Figure 1 a schematic view of the right side perspective;

[0022] Figure 3 is Figure 1 a schematic cross-sectional structure diagram;

[0023] Figure 4 is Figure 3 an enlarged view of part A of

[0024] Figure 5 is Figure 3 an enlarged view of part B of

[0025] In the figure: 1 mounting plate, 2 connecting frame, 3 support plate, 4 universal wheel, 5 chute, 6 threaded rod, 7 moving plate, 8 first motor, 9 electric telescopic rod, 10 support block, 11 bottom plate, 12 U-shaped plate, 13 filter box, 14 three-jaw chuck, 15 communicating pipe, 16 blanking port, 17 second motor, 18 spring, 19 slider, 20 connecting block, 21 L-shaped frame, 22 turntable, 23 rotating rod, 24 piston cylinder, 25 piston block, 26 one-way port, 27 one-way pipe, 28 sliding cylinder, 29 sliding block, 30 connecting column, 31 laser cutting head, 32 wedge-shaped guide block, 33 guide rod. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Refer to Figures 1 - 5 , a laser cutting device for metal pipes, including a mounting plate 1. Two connecting frames 2 are symmetrically and fixedly connected to the lower end of the mounting plate 1. A support plate 3 is fixedly connected to the lower ends of the two connecting frames 2. A universal wheel 4 is installed at the lower end of the support plate 3. Through the universal wheel 4, the device can be moved to the required position.

[0029] As an implementation manner of the present invention, it further includes a cutting mechanism. The cutting mechanism includes a bottom plate 11 fixedly connected to the right side of the mounting plate 1. A material dropping port 16 is opened at the inner bottom of the bottom plate 11. A U-shaped plate 12 is fixedly connected to the upper end of the bottom plate 11. A horizontal plate is fixedly connected to the upper end of the U-shaped plate 12. A sliding cylinder 28 is fixedly connected to the lower end of the horizontal plate. A sliding block 29 that can slide up and down is arranged in the sliding cylinder 28. A connecting column 30 is fixedly connected to the lower end of the sliding block 29. A laser cutting head 31 is installed at the lower end of the connecting column 30. A wedge-shaped guide block 32 is fixedly connected to the left side of the connecting column 30. The upper end of the sliding block 29 is elastically connected to the inner top of the sliding cylinder 28 through a spring 18. A guide rod 33 is fixedly connected to the upper end of the sliding block 29. The upper end of the guide rod 33 penetrates through the inner top of the horizontal plate and is slidably connected. By using the structure of the wedge-shaped guide block 32, when the metal pipe moves to the right, it first pushes the wedge-shaped guide block 32 to move up, and finally makes the laser cutting head 31 move up. By adopting this method, the distance between the laser cutting head 31 and the pipe fitting can be adjusted adaptively to ensure the cutting effect. Further, only the illustrated effect is shown in the figure. In actual use, there is a large distance between the right inner wall of the U-shaped plate 12 and the laser cutting head 31. The cut metal pipe will be discharged from the material dropping port 16.

[0030] As an implementation manner of the present invention, it further includes a limiting mechanism. The limiting mechanism includes a moving plate 7 arranged above the mounting plate 1. A second motor 17 is installed on the left side of the moving plate 7. The second motor 17 is a double-shaft motor. The right output shaft of the second motor 17 penetrates through the moving plate 7 and is fixedly connected to a three-jaw chuck 14. The three-jaw chuck 14 is used to limit the left end of the pipe.

[0031] As an implementation manner of the present invention, it further includes a moving mechanism for moving the limiting mechanism. The moving mechanism includes a chute 5 opened at the upper end of the mounting plate 1. A threaded rod 6 is rotatably connected between the left and right inner walls of the chute 5. A slider 19 is threadedly connected to the threaded rod 6. The slider 19 is slidably connected to the inner wall of the chute 5. The upper end of the slider 19 is fixedly connected to a connecting block 20. The upper end of the connecting block 20 is fixedly connected to the lower end of the moving plate 7. A first motor 8 is installed on the left side of the mounting plate 1. The output shaft of the first motor 8 extends into the chute 5 and is fixedly connected to the left end of the threaded rod 6. The first motor 8 is a servo motor that can change the rotation direction. By using the moving mechanism and cooperating with the cutting mechanism, the pipe can be cut into multiple segments;

[0032] As an implementation manner of the present invention, an electric telescopic rod 9 is fixedly connected to the upper end of the mounting plate 1. The telescopic end of the electric telescopic rod 9 is fixedly connected to a support block 10. An arc-shaped groove is provided at the upper end of the support block 10 for supporting the lower end of the right part of the pipe;

[0033] As an implementation manner of the present invention, it further includes a flue gas removal mechanism for removing the flue gas generated during the cutting process. The flue gas removal mechanism includes an L-shaped frame 21 fixedly connected to the upper end of the moving plate 7. A piston cylinder 24 is installed at the lower end of the horizontal part of the L-shaped frame 21. A piston block 25 that can slide up and down is provided in the piston cylinder 24. The left output shaft of the second motor 17 is fixedly connected to a turntable 22. A rotating rod 23 is rotatably connected to the eccentric part on the left side of the turntable 22. The other end of the rotating rod 23 is rotatably connected to the lower end of the piston block 25. A filter box 13 is installed on the right side of the U-shaped plate 12. An activated carbon filter element is provided inside the filter box 13. The inner bottom of the filter box 13 is communicated with the inner space of the U-shaped plate 12 through a communication pipe 15. The inner bottom of the filter box 13 is communicated with the inner top space of the piston cylinder 24 through a one-way pipe 27. The inner bottom space of the piston cylinder 24 is communicated with the outside through a one-way port 26. One-way valves are installed inside both the one-way pipe 27 and the one-way port 26. The flow direction of the one-way valve inside the one-way port 26 is to discharge unidirectionally from the piston cylinder 24 to the outside, and the flow direction of the one-way valve inside the one-way pipe 27 is to enter the piston cylinder 24 unidirectionally from the filter box 13.

[0034] In the present invention, the device is moved to the required working position by the universal wheels 4 at the lower end of the support plate 3. The left end of the metal pipe to be cut is placed inside the three-jaw chuck 14, and the three-jaw chuck 14 is used to limit and fix the left end of the pipe. The lower part of the right end of the pipe is supported by the arc-shaped groove at the upper end of the support block 10. In the initial state, the laser cutting head 31 is at an appropriate cutting height. When the metal pipe moves to the right, the right end of the pipe first presses against the wedge-shaped guide block 32 on the left side of the connecting column 30. The wedge-shaped guide block 32 drives the connecting column 30 and the sliding block 29 to slide upward in the sliding cylinder 28, and the spring 18 is compressed, thereby causing the laser cutting head 31 to move upward, so as to adaptively adjust the distance between the laser cutting head 31 and the pipe fitting and ensure the cutting effect.

[0035] Start the second motor 17. The output shaft at its right end drives the three-jaw chuck 14 to rotate, thereby causing the pipe to rotate. At the same time, start the laser cutting head 31 to perform cutting operations on the pipe. After completing one section of cutting, start the first motor 8. As a servo motor whose rotation direction can be changed, its output shaft drives the threaded rod 6 to rotate in the chute 5. Since the slider 19 is threadedly connected to the threaded rod 6 and slidably connected to the inner wall of the chute 5, the rotation of the threaded rod 6 causes the slider 19 to slide in the chute 5. The slider 19 drives the moving plate 7 and the limiting mechanism (including the pipe) to move through the connecting block 20, realizing the feeding of the pipe and preparing for the next section of cutting. Repeat the above operations of pipe feeding and cutting, and the pipe can be cut into multiple sections.

[0036] During the cutting process, start the second motor 17. The output shaft at its left end drives the turntable 22 to rotate. The turntable 22 drives the piston block 25 to slide up and down in the piston cylinder 24 through the rotating rod 23. When the piston block 25 moves downward, a negative pressure is formed in the upper space inside the piston cylinder 24, and the gas in the filter box 13 (at this time, the gas in the filter box 13 is connected to the inner space of the U-shaped plate 12 through the connecting pipe 15, and the fumes generated by cutting in the U-shaped plate 12 enter the filter box 13 through the connecting pipe 15) is inhaled into the piston cylinder 24 through the one-way pipe 27. When the piston block 25 moves upward, the gas in the piston cylinder 24 is discharged to the outside through the one-way port 26. The activated carbon filter element in the filter box 13 can filter and adsorb the incoming fumes, removing harmful substances in the fumes and avoiding affecting the surrounding environment.

[0037] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0038] As mentioned above, the above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A metal pipe laser cutting device, characterized in that: include: Mounting plate (1); A cutting mechanism, the cutting mechanism comprising a bottom plate (11) fixedly connected to the right side of the mounting plate (1), the bottom of the bottom plate (11) being provided with a blanking opening (16), the upper end of the bottom plate (11) being fixedly connected to a U-shaped plate (12), the upper end of the U-shaped plate (12) being fixedly connected to a horizontal plate, the lower end of the horizontal plate being fixedly connected to a sliding cylinder (28), the sliding cylinder (28) being provided with a sliding block (29) that can slide up and down, the lower end of the sliding block (29) being fixedly connected to a connecting column (30), the lower end of the connecting column (30) being provided with a laser cutting head (31); A limiting mechanism, the limiting mechanism comprising a moving plate (7) arranged above the mounting plate (1), a second motor (17) being installed on the left side of the moving plate (7), the second motor (17) being a double-shaft motor, the right end output shaft of the second motor (17) passing through the moving plate (7) and being fixedly connected to a three-jaw chuck (14); A moving mechanism, wherein the moving mechanism is used to move the limiting mechanism; The fume removal mechanism is used to remove the fume generated during the cutting process.

2. A metal tube laser cutting device according to claim 1, characterized in that: The lower end of the mounting plate (1) is symmetrically fixedly connected to two connecting frames (2), the lower ends of the two connecting frames (2) are commonly fixedly connected to a supporting plate (3), and the lower end of the supporting plate (3) is equipped with a universal wheel (4).

3. The metal tube laser cutting device according to claim 1, characterized in that: A wedge-shaped guide block (32) is fixedly connected to the left side of the connecting column (30), the upper end of the sliding block (29) is elastically connected to the inner top of the sliding cylinder (28) through a spring (18), and the upper end of the sliding block (29) is fixedly connected to a guide rod (33), and the upper end of the guide rod (33) passes through the inner top of the horizontal plate and is slidably connected.

4. The metal tube laser cutting device according to claim 1, characterized in that: The moving mechanism comprises a slide groove (5) provided at the upper end of the mounting plate (1); a threaded rod (6) is rotatably connected between the inner walls on the left and right sides of the slide groove (5); a slider (19) is threadedly connected to the threaded rod (6); the slider (19) is slidably connected to the inner wall of the slide groove (5); a connecting block (20) is fixedly connected to the upper end of the slider (19); and the upper end of the connecting block (20) is fixedly connected to the lower end of the moving plate (7).

5. The metal tube laser cutting device according to claim 4, characterized in that: A first motor (8) is installed on the left side of the mounting plate (1). The output shaft of the first motor (8) extends into the slide groove (5) and is fixedly connected to the left end of the threaded rod (6). The first motor (8) is a servo motor capable of changing the direction of rotation.

6. The metal tube laser cutting device according to claim 1, characterized in that: The upper end of the mounting plate (1) is fixedly connected to an electric telescopic rod (9), the telescopic end of the electric telescopic rod (9) is fixedly connected to a support block (10), and the upper end of the support block (10) is provided with an arc groove.

7. The metal tube laser cutting device according to claim 1, characterized in that: The smoke removal mechanism comprises an L-shaped frame (21) fixedly connected to the upper end of the movable plate (7), a piston cylinder (24) being installed at the lower end of the horizontal part of the L-shaped frame (21), a piston block (25) being arranged in the piston cylinder (24) and being able to slide up and down, a turntable (22) being fixedly connected to the left output shaft of the second motor (17), a turntable (22) being rotatably connected to a turntable (22) at the left eccentric position, the other end of the turntable (23) being rotatably connected to the lower end of the piston block (25), a filter box (13) being installed on the right side of the U-shaped plate (12), the inner bottom of the filter box (13) being connected to the inner space of the U-shaped plate (12) through a connecting pipe (15), the inner bottom of the filter box (13) being connected to the inner top space of the piston cylinder (24) through a one-way pipe (27), and the inner bottom space of the piston cylinder (24) being connected to the outside through a one-way port (26).

8. The metal tube laser cutting device according to claim 7, characterized in that: Both the one-way tube (27) and the one-way port (26) are internally installed with one-way valves. The one-way valve inside the one-way port (26) allows the flow to be discharged from the piston cylinder (24) to the outside in one direction, while the one-way valve inside the one-way tube (27) allows the flow to be discharged from the filter box (13) to the piston cylinder (24) in one direction.

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