A laser cutting machine for metal pipe processing

Abstract

The present invention provides a laser cutting machine for metal pipe processing, which relates to the field of cutting technology. The laser cutting machine for metal pipe processing includes: a pipeline robot; a laser head, which is arranged at the rear end of the pipeline robot; a first driving mechanism, which is arranged on the pipeline robot, and the first driving mechanism is used to drive the laser head to rotate along the circumference of the metal pipe; a second driving mechanism, which is arranged on the first driving mechanism, and the second driving mechanism is used to drive the laser head to move along the radial direction of the metal pipe; a preheating mechanism, which is arranged at the front end of the pipeline robot, and the preheating mechanism includes an umbrella, a rubber ring and an electric heating element. The present invention heats the rubber ring through the electric heating element, thereby realizing circumferential heating of the cutting position of the inner wall of the metal pipe, and can realize the circumferential heating requirements of the inner walls of metal pipes of different diameters, so that the cutting position is first circumferentially heated, and then the laser head cuts the preheated cutting position, thereby significantly improving the cutting quality and cutting efficiency.

Description

Technical Field

[0001] The present invention relates to the field of cutting technology, in particular to a laser cutting machine for processing metal pipes. Background Art

[0002] Metal tubes are hollow cylindrical structures. Many small-diameter, slender tubular structures with closed or semi-enclosed cavities are found in engineering applications. Some of these cavities are critical load-bearing structures and are crucial for operational safety. Axial compression, a common structural stress factor in engineering, is experienced in tubular structures such as round and square tubes. In recent years, with the rapid development of laser technology, laser cutting machines have been increasingly used in metal tube processing.

[0003] Laser cutting usually involves placing a metal tube under a laser cutting head and achieving laser cutting by rotating the metal tube. However, when cutting large-diameter metal tubes, a larger supporting rotating device is required to drive the metal tube to rotate, which increases processing costs. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a laser cutting machine for processing metal pipes.

[0005] The present invention provides a laser cutting machine for processing metal pipes, comprising: a pipeline robot for moving in a metal pipe; a laser head provided at the rear end of the pipeline robot; a first driving mechanism provided on the pipeline robot, and the first driving mechanism is used to drive the laser head to rotate along the circumferential direction of the metal pipe; a second driving mechanism provided on the first driving mechanism, and the second driving mechanism is used to drive the laser head to move along the radial direction of the metal pipe; a preheating mechanism provided at the front end of the pipeline robot, the preheating mechanism comprising an umbrella, a rubber ring and an electric heating element, the rubber ring being connected to the circumference of the umbrella, the electric heating element being provided in the rubber ring, the umbrella can be opened or closed, and when the umbrella is opened, the rubber ring is used to abut the inner wall of the metal pipe; and a third driving mechanism provided on the pipeline robot, the third driving mechanism being used to drive the preheating mechanism to move along the axial direction of the metal pipe.

[0006] Optionally, the electric heating element is configured as an electric heating film, the electric heating film is configured as a long strip structure, an annular cavity is provided in the rubber ring, and the electric heating film is disposed in the annular cavity with its end to end connected.

[0007] Optionally, the preheating mechanism further includes an opening and closing component, and the opening and closing component is connected to the umbrella surface to enable the umbrella surface to be opened or closed.

[0008] Optionally, the opening and closing component includes a middle rod, a push rod, a slider, a driving component, and a support rod, one end of the middle rod is connected to the output end of the third driving mechanism, the other end of the middle rod is connected to the middle part of the umbrella surface, the slider is slidably connected to the middle rod, one end of multiple support rods is rotatably connected to the middle rod away from one end of the third driving mechanism, the other ends of multiple support rods extend radially along the circumferential direction to the circumference of the umbrella surface, one end of multiple push rods is rotatably connected to the slider, and the other ends of multiple push rods are respectively rotatably connected to the corresponding support rods, the mounting end of the driving component is connected to the output end of the third driving mechanism, and the output end of the driving component is connected to the slider so that the slider moves along the axial direction of the middle rod.

[0009] Optionally, it further includes an air release mechanism, which is provided on the preheating mechanism. When the degree of expansion of the umbrella surface gradually increases, the air release mechanism is used to gradually discharge the gas in the annular cavity.

[0010] Optionally, the deflation mechanism includes a piston rod, an air pipe, an air storage tank, a piston and an air hole, one end of the piston rod is connected to the slider, the other end of the piston rod penetrates into the air storage tank and is connected to the piston, the piston is slidably connected to the inner wall of the air storage tank, the air storage tank is connected to the middle rod, the inner cavity position of the air storage tank close to the slider is connected to one end of the air pipe, the other end of the air pipe is connected to the annular cavity, and the air hole is provided at the inner cavity position of the air storage tank away from the slider.

[0011] Optionally, the driving component is configured as a cylinder, the mounting end of the cylinder is connected to the output end of the third driving mechanism, and the output end of the cylinder is connected to the slider.

[0012] Optionally, the first driving mechanism includes a motor, a rotating shaft and a rotating seat. The motor is connected to the housing of the pipeline robot, the output shaft of the motor is connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to the rotating seat. The laser head is connected to the rotating seat through the second driving mechanism.

[0013] Optionally, the second driving mechanism is configured as an electric linear guide rail, the electric linear guide rail is connected to the rotating seat, and the laser head is connected to a slider of the electric linear guide rail.

[0014] Optionally, the third driving mechanism is configured as a multi-stage electric push rod, the mounting end of the multi-stage electric push rod is connected to the housing, and the output end of the multi-stage electric push rod is used to connect to the middle rod and the cylinder.

[0015] The laser cutting machine for metal pipe processing of the present invention has the following beneficial effects: the first drive mechanism on the pipeline robot can drive the laser head to rotate along the circumference of the metal pipe, thereby achieving circumferential cutting of the inner wall of the metal pipe, and cooperates with the second drive mechanism on the pipeline robot. The second drive mechanism can drive the laser head to move along the radial direction of the metal pipe, thereby meeting the cutting requirements of metal pipes of different diameters. The circumferential cutting of the inner wall of the metal pipe saves processing costs. The umbrella in the preheating mechanism can be opened or closed and can be driven by the third drive mechanism to the cutting position to be preheated. When the umbrella is closed, it is convenient for the pipeline robot to carry the preheating mechanism. When the umbrella is opened to different degrees, the rubber ring can also be expanded to a corresponding degree, so that the rubber ring abuts the inner wall of the metal pipe. The rubber ring is heated by the electric heater, thereby achieving circumferential heating of the cutting position of the inner wall of the metal pipe. The circumferential heating requirements of the inner walls of metal pipes of different diameters can be met. The cutting position is first circumferentially heated, and then the laser head cuts the preheated cutting position, thereby significantly improving cutting quality and cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a laser cutting machine for metal pipe processing according to an embodiment of the present invention;

[0017] Figure 2 This is a front view of a laser cutting machine for metal pipe processing according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic structural diagram of a preheating mechanism in a laser cutting machine for metal pipe processing according to an embodiment of the present invention;

[0019] Figure 4 A side view of a laser cutting machine for metal pipe processing according to an embodiment of the present invention;

[0020] Figure 5 for Figure 2 A magnified view of the structure at point A;

[0021] Figure 6 This is a schematic structural diagram of an electric heating element in a laser cutting machine for metal pipe processing according to an embodiment of the present invention;

[0022] Figure 7 This is a structural schematic diagram of a laser cutting machine for metal pipe processing in a first position according to an embodiment of the present invention;

[0023] Figure 8 This is a schematic structural diagram of the laser cutting machine for metal pipe processing in the second position according to an embodiment of the present invention;

[0024] Figure 9 This is a schematic structural diagram of a laser cutting machine for metal pipe processing in a third position according to an embodiment of the present invention;

[0025] Figure 10 This is a schematic structural diagram of the laser cutting machine for metal pipe processing in the fourth position according to an embodiment of the present invention.

[0026] Explanation of the accompanying drawings: 1. Pipeline robot; 11. Shell; 2. Laser head; 3. First driving mechanism; 31. Motor; 32. Rotating shaft; 33. Rotating seat; 4. Second driving mechanism; 5. Third driving mechanism; 6. Preheating mechanism; 61. Umbrella; 62. Opening and closing component; 621. Middle rod; 622. Push rod; 623. Slider; 624. Driving component; 625. Support rod; 63. Rubber ring; 631. Annular cavity; 64. Electric heating element; 7. Deflating mechanism; 71. Piston rod; 72. Air pipe; 73. Air tank; 74. Piston; 75. Air hole; 100. Metal tube. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] Throughout this specification, reference to terms such as "an embodiment," "one embodiment," "some embodiments," "exemplarily," and "one embodiment" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or embodiment are included in at least one embodiment or embodiment of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or embodiment. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or embodiments.

[0030] The terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly specify the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one of the features.

[0031] In the accompanying drawings, the Z-axis represents the vertical direction, that is, the up-down position, with the positive direction of the Z-axis representing the up position and the negative direction of the Z-axis representing the down position. In the accompanying drawings, the X-axis represents the horizontal direction and is designated as the left-right position, with the positive direction of the X-axis representing the left position and the negative direction of the X-axis representing the right position. In the accompanying drawings, the Y-axis represents the front-back position, with the positive direction of the Y-axis representing the front side and the negative direction of the Y-axis representing the back side. It should also be noted that the aforementioned Z-axis, Y-axis, and X-axis are merely for the purpose of facilitating the description of the present invention and simplifying the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0032] An embodiment of the present invention provides a laser cutting machine for metal pipe processing, comprising: a pipeline robot 1 for moving in a metal pipe 100; a laser head 2, disposed at the rear end of the pipeline robot 1; a first drive mechanism 3, disposed on the pipeline robot 1, and the first drive mechanism 3 is used to drive the laser head 2 to rotate along the circumferential direction of the metal pipe 100; a second drive mechanism 4, disposed on the first drive mechanism 3, and the second drive mechanism 4 is used to drive the laser head 2 to move along the radial direction of the metal pipe 100; a preheating mechanism 6, disposed at the front end of the pipeline robot 1, the preheating mechanism 6 includes an umbrella 61, a rubber ring 63 and an electric heating element 64, the rubber ring 63 is connected to the circumference of the umbrella 61, and the electric heating element 64 is disposed in the rubber ring 63, the umbrella 61 can be opened or closed, and when the umbrella 61 is opened, the rubber ring 63 is used to abut the inner wall of the metal pipe 100; and a third drive mechanism 5, disposed on the pipeline robot 1, the third drive mechanism 5 is used to drive the preheating mechanism 6 to move along the axial direction of the metal pipe 100.

[0033] Specifically, the rear end of the pipeline robot 1 refers to the end along the negative Y-axis, while the front end of the pipeline robot 1 refers to the forward end, that is, the end along the positive Y-axis. The gradual expansion of the umbrella 61 refers to the gradual increase in the inner diameter of the umbrella 61, and the gradual expansion of the rubber ring 63 refers to the gradual increase in the diameter of the rubber ring 63.

[0034] In this optional embodiment, combined with Figure 1 、 Figure 2 and Figure 4As shown, the first driving mechanism 3 on the pipeline robot 1 can drive the laser head 2 to rotate along the circumference of the metal pipe 100, thereby realizing the circumferential cutting of the inner wall of the metal pipe 100, and cooperates with the second driving mechanism 4 on the pipeline robot 1. The second driving mechanism 4 can drive the laser head 2 to move along the radial direction of the metal pipe 100, realizing the cutting requirements of metal pipes 100 with different diameters, and the circumferential cutting of the inner wall of the metal pipe 100 saves processing costs. The umbrella surface 61 in the preheating mechanism 6 can be opened or closed, and can be driven by the third driving mechanism 5 to the cutting position to be preheated. When the umbrella 61 is folded, it is convenient for the pipeline robot 1 to carry the preheating mechanism 6. When the umbrella 61 is expanded to different degrees, the rubber ring 63 can also be expanded to a corresponding degree, so that the rubber ring 63 abuts against the inner wall of the metal pipe 100. The rubber ring 63 is heated by the electric heating element 64, thereby realizing circumferential heating of the cutting position of the inner wall of the metal pipe 100, and can meet the circumferential heating requirements of the inner walls of metal pipes 100 with different diameters, so that the cutting position is first circumferentially heated, and then the laser head 2 cuts the preheated cutting position, thereby significantly improving the cutting quality and cutting efficiency.

[0035] The specific working principle is explained below. Figure 7 As shown, the laser cutting machine for metal pipe processing is in the first position, and the metal pipe 100 has a preset cutting position point a and a cutting position point b. At this time, the laser head 2 is aligned with the cutting position point a, as shown in FIG. Figure 8 As shown, the laser cutting machine for metal pipe processing is in the second position, and the third driving mechanism 5 drives the umbrella surface 61 to the cutting position point b, as shown in FIG. Figure 9 As shown, the laser cutting machine for metal pipe processing is in the third position, the umbrella 61 is opened, so that the rubber ring 63 performs circumferential heating on the cutting position b, as shown in FIG. Figure 10 As shown, the laser cutting machine for metal pipe processing is in the fourth position, and the laser head 2 performs circumferential cutting on the cutting position a. After the cutting is completed, the umbrella 61 is folded, and the pipeline robot 1 moves forward (in the positive direction of the Y axis) to align the laser head 2 with the cutting position b for subsequent cutting work.

[0036] Optionally, the electric heating element 64 is configured as an electric heating film, the electric heating film is configured as a long strip structure, an annular cavity 631 is provided in the rubber ring 63 , and the electric heating film is disposed in the annular cavity 631 with its end to end connected.

[0037] In this optional embodiment, combined with Figure 6 As shown, the electric heating film is soft and bendable, so it can adapt to different expansion degrees of the rubber ring 63 within a certain range.

[0038] Furthermore, the preheating mechanism 6 further includes an opening and closing component 62 , which is connected to the umbrella surface 61 to enable the umbrella surface 61 to be opened or closed.

[0039] Optionally, the opening and closing component 62 includes a middle rod 621, a push rod 622, a slider 623, a driving component 624, and a support rod 625. One end of the middle rod 621 is connected to the output end of the third driving mechanism 5, and the other end of the middle rod 621 is connected to the middle part of the umbrella surface 61. The slider 623 is slidably connected to the middle rod 621. One end of multiple support rods 625 is rotatably connected to one end of the middle rod 621 away from the third driving mechanism 5. The other ends of multiple support rods 625 extend radially along the circumferential direction to the circumference of the umbrella surface 61. One end of multiple push rods 622 is rotatably connected to the slider 623, and the other ends of multiple push rods 622 are rotatably connected to the corresponding support rods 625 respectively. The mounting end of the driving component 624 is connected to the output end of the third driving mechanism 5, and the output end of the driving component 624 is connected to the slider 623 so that the slider 623 moves axially along the middle rod 621.

[0040] In this optional embodiment, combined with Figure 2 and Figure 3 As shown, the slider 623 is driven by the driving component 624 to move in the direction away from the third driving mechanism 5, so that the push rod 622 gradually expands the support rod 625, and then the umbrella cover 61 is gradually expanded. Then, the expansion degree of the umbrella cover 61 can be adjusted according to the inner diameter of the metal tube 100, so that the outer peripheral surface of the rubber ring 63 abuts against the inner wall of the metal tube 100.

[0041] Furthermore, the laser cutting machine for metal pipe processing also includes an air release mechanism 7, which is arranged on the preheating mechanism 6. When the degree of expansion of the umbrella surface 61 gradually increases, the air release mechanism 7 is used to gradually discharge the gas in the annular cavity 631.

[0042] Optionally, the deflation mechanism 7 includes a piston rod 71, an air pipe 72, an air tank 73, a piston 74 and an air hole 75. One end of the piston rod 71 is connected to the slider 623, and the other end of the piston rod 71 penetrates into the air tank 73 and is connected to the piston 74. The piston 74 is slidably connected to the inner wall of the air tank 73. The air tank 73 is connected to the middle rod 621. The inner cavity position of the air tank 73 close to the slider 623 is connected to one end of the air pipe 72, and the other end of the air pipe 72 is connected to the annular cavity 631. The air hole 75 is provided at the inner cavity position of the air tank 73 away from the slider 623.

[0043] In this optional embodiment, combined with Figure 2 and Figure 5As shown, as the umbrella surface 61 is gradually expanded, the rubber ring 63 is also gradually expanded. At the same time, the electric heating element 64 is also continuously heating the annular cavity 631, so that the temperature of the air inside the annular cavity 631 gradually increases, resulting in a thermal expansion effect of the air inside the annular cavity 631, thereby causing a thermal expansion effect of the rubber ring 63 itself. Since the expansion range of the rubber ring 63 is limited, it is easy to cause the rubber ring 63 to swell and lose. In order to solve this problem, when the slider 623 moves forward (in the positive direction of the Y axis) along the middle rod 621, the piston 74 gradually moves forward (in the positive direction of the Y axis) in the air tank 73, thereby continuously sucking the hot air inside the annular cavity 631 into the air tank 73 through the air pipe 72, thereby preventing the rubber ring 63 from swelling and losing. Regarding the problem of expansion loss, it should be noted that when the inner diameter of the metal tube 100 to be cut is small, the degree of expansion of the umbrella cover 61 is small, and the expansion degree of the rubber ring 63 is also small. At this time, the distance that the piston 74 moves forward in the air tank 73 is also short, so that the air pipe 72 will not absorb too much hot air inside the annular cavity 631, so that the rubber ring 63 remains in an inflated state, increasing the contact area between the outer peripheral surface of the rubber ring 63 and the inner wall of the metal tube 100, thereby improving the heating effect on the inner wall of the metal tube 100. In other words, the deflation mechanism 7 can dynamically absorb the hot air inside the annular cavity 631 according to the expansion degree of the rubber ring 63, which can not only avoid the expansion loss of the rubber ring 63, but also improve the heating effect on the inner wall of the metal tube 100.

[0044] Optionally, the driving component 624 is configured as a cylinder, the mounting end of the cylinder is connected to the output end of the third driving mechanism 5 , and the output end of the cylinder is connected to the slider 623 .

[0045] In this optional embodiment, combined with Figure 3 As shown, by making the output end of the cylinder push and pull the slider 623, the slider 623 can slide back and forth on the middle rod 621, thereby realizing the expansion or folding of the umbrella surface 61.

[0046] Furthermore, the first driving mechanism 3 includes a motor 31, a rotating shaft 32 and a rotating seat 33. The motor 31 is connected to the housing 11 of the pipeline robot 1. The output shaft of the motor 31 is connected to one end of the rotating shaft 32, and the other end of the rotating shaft 32 is connected to the rotating seat 33. The laser head 2 is connected to the rotating seat 33 through the second driving mechanism 4.

[0047] In this optional embodiment, combined with Figure 1 and Figure 2 As shown, the rotating seat 33 can be rotatably connected to the rear end of the shell 11 through a bearing, and the rotating shaft 32 is driven to rotate by the motor 31, thereby driving the rotating seat 33 to rotate, and then the laser head 2 can rotate circumferentially in the metal tube 100 to achieve annular cutting of the inner wall of the metal tube 100.

[0048] Optionally, the second driving mechanism 4 is configured as an electric linear guide rail, the electric linear guide rail is connected to the rotating base 33 , and the laser head 2 is connected to a sliding block of the electric linear guide rail.

[0049] In this optional embodiment, combined with Figure 1 and Figure 2 As shown, the electric linear guide rail can drive the laser head 2 to move toward or away from the metal tube 100, thereby meeting the cutting requirements of metal tubes 100 with different diameters. In other optional embodiments, the second drive mechanism 4 can also be replaced by a linear drive device such as a cylinder, which can also achieve the same technical effect as mentioned above.

[0050] Furthermore, the third driving mechanism 5 is configured as a multi-stage electric push rod, the mounting end of which is connected to the housing 11 , and the output end of which is used to connect to the middle rod 621 and the cylinder.

[0051] In this optional embodiment, combined with Figure 1 and Figure 2 As shown, the installation end of the multi-stage electric push rod refers to the section with the largest diameter of the multi-stage electric push rod. By installing this section in the shell 11, the multi-stage electric push rod can make the umbrella cover 61 rest against the front end of the pipeline robot 1 when it is fully retracted, so that the umbrella cover 61 will not take up additional space when carried, thereby improving the portability.

[0052] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A laser cutting machine for metal pipe processing, characterized in that: include: A pipeline robot (1) for moving within a metal pipe (100); A laser head (2) is provided at the rear end of the pipeline robot (1); A first driving mechanism (3) is provided on the pipeline robot (1), and the first driving mechanism (3) is used to drive the laser head (2) to rotate along the circumference of the metal pipe (100); A second driving mechanism (4) is provided on the first driving mechanism (3), and the second driving mechanism (4) is used to drive the laser head (2) to move along the radial direction of the metal tube (100); a preheating mechanism (6) provided at the front end of the pipeline robot (1), the preheating mechanism (6) comprising an umbrella (61), a rubber ring (63) and an electric heating element (64), the rubber ring (63) being connected to the periphery of the umbrella (61), the electric heating element (64) being provided in the rubber ring (63), the umbrella (61) being capable of being opened or closed, and when the umbrella (61) is opened, the rubber ring (63) is used to abut against the inner wall of the metal pipe (100); and a third driving mechanism (5) provided on the pipeline robot (1), the third driving mechanism (5) being used to drive the preheating mechanism (6) to move along the axial direction of the metal pipe (100); The electric heating element (64) is configured as an electric heating film, the electric heating film is configured as a long strip structure, an annular cavity (631) is provided in the rubber ring (63), and the electric heating film is disposed in the annular cavity (631) with its end to end connected; It also includes an air release mechanism (7), which is provided on the preheating mechanism (6). When the degree of expansion of the umbrella surface (61) gradually increases, the air release mechanism (7) is used to gradually discharge the gas in the annular cavity (631).

2. The laser cutting machine for metal pipe processing according to claim 1, characterized in that: The preheating mechanism (6) further comprises an opening and closing component (62), wherein the opening and closing component (62) is connected to the umbrella surface (61) so as to enable the umbrella surface (61) to be opened or closed.

3. The laser cutting machine for metal pipe processing according to claim 2, characterized in that: The opening and closing component (62) includes a middle rod (621), a push rod (622), a slider (623), a driving component (624), and a support rod (625). One end of the middle rod (621) is connected to the output end of the third driving mechanism (5), and the other end of the middle rod (621) is connected to the middle of the umbrella surface (61). The slider (623) is slidably connected to the middle rod (621). One end of the plurality of support rods (625) is rotatably connected to the middle rod (621) away from one end of the third driving mechanism (5). The other end of the support rod (625) extends radially along the annular direction to the circumference of the umbrella surface (61), one end of the plurality of push rods (622) is rotatably connected to the slider (623), and the other ends of the plurality of push rods (622) are rotatably connected to the corresponding support rods (625), respectively. The mounting end of the driving component (624) is connected to the output end of the third driving mechanism (5), and the output end of the driving component (624) is connected to the slider (623) so that the slider (623) moves along the axial direction of the middle rod (621).

4. The laser cutting machine for metal pipe processing according to claim 3, characterized in that: The deflation mechanism (7) includes a piston rod (71), an air pipe (72), an air storage tank (73), a piston (74) and an air hole (75), one end of the piston rod (71) is connected to the slider (623), the other end of the piston rod (71) penetrates into the air storage tank (73) and is connected to the piston (74), the piston (74) is slidably connected to the inner wall of the air storage tank (73), the air storage tank (73) is connected to the middle rod (621), the inner cavity position of the air storage tank (73) close to the slider (623) is communicated with one end of the air pipe (72), the other end of the air pipe (72) is communicated with the annular cavity (631), and the air hole (75) is provided at the inner cavity position of the air storage tank (73) away from the slider (623).

5. The laser cutting machine for metal pipe processing according to claim 4, characterized in that: The driving component (624) is configured as a cylinder, the mounting end of the cylinder being connected to the output end of the third driving mechanism (5), and the output end of the cylinder being connected to the slider (623).

6. The laser cutting machine for metal pipe processing according to claim 5, characterized in that: The first driving mechanism (3) comprises a motor (31), a rotating shaft (32) and a rotating seat (33); the motor (31) is connected to the housing (11) of the pipeline robot (1); the output shaft of the motor (31) is connected to one end of the rotating shaft (32); the other end of the rotating shaft (32) is connected to the rotating seat (33); and the laser head (2) is connected to the rotating seat (33) via the second driving mechanism (4).

7. The laser cutting machine for metal pipe processing according to claim 6, characterized in that: The second driving mechanism (4) is configured as an electric linear guide rail, the electric linear guide rail is connected to the rotating seat (33), and the laser head (2) is connected to a slider of the electric linear guide rail.

8. The laser cutting machine for metal pipe processing according to claim 6, characterized in that: The third driving mechanism (5) is configured as a multi-stage electric push rod, the mounting end of the multi-stage electric push rod being connected to the housing (11), and the output end of the multi-stage electric push rod being used for connecting to the middle rod (621) and the cylinder.

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