Three-chuck groove pipe cutting machine

Abstract

The utility model discloses a three-chuck groove pipe cutting machine. Comprising a side hanging lathe bed formed by splicing a first sub-frame and a second sub-frame, a portal frame arranged on the second sub-frame, a laser cutting assembly arranged on the portal frame, and a first chuck structure, a second chuck structure and a third chuck structure which are sequentially arranged on the side hanging lathe bed from front to back in a sliding mode. The laser cutting assembly comprises an X-axis sliding table arranged on the portal frame in a sliding mode, an X-axis driving mechanism used for driving the X-axis sliding table to move in the X-axis direction, a Z-axis sliding table arranged on the X-axis sliding table in a sliding mode, a Z-axis driving mechanism used for driving the Z-axis sliding table to move in the Z-axis direction and an A-axis rotary table arranged at the lower end of the Z-axis sliding table. The A-axis rotary table is installed on the first sub-frame, the laser cutting head is installed on the A-axis rotary table, the second sub-frame is provided with at least one air draft dust removal opening adjacent to the laser cutting head, a plurality of installation side seats are arranged beside the first sub-frame, and centering follow-up mechanisms are arranged on the installation side seats and used for clamping pipes to enable the pipes to be centered.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe cutting machines, and particularly relates to a three-chuck bevel pipe cutting machine. Background Art

[0002] The bed structure of the existing laser pipe cutting machine can refer to a side-mounted three-chuck laser pipe cutting machine provided by the patent document (CN217412852U), which has the following deficiencies: 1. This laser pipe cutting machine can only cut pipes straight and does not have the function of bevel cutting; 2. The laser pipe cutting machine does not have the function of exhausting dust. A large amount of metal dust will be generated when the laser cutting head of the laser pipe cutting machine cuts pipes, thus polluting the workshop environment.

[0003] It can be seen that the existing technology still needs to be improved. Summary of the Utility Model

[0004] In view of the above deficiencies of the existing technology, the purpose of the utility model is to provide a three-chuck bevel pipe cutting machine, which not only has the function of bevel cutting but also can exhaust dust to reduce pollution.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A three-chuck bevel pipe cutting machine includes a side-mounted bed formed by splicing a first sub-frame and a second sub-frame, a gantry mounted on the second sub-frame, a laser cutting assembly mounted on the gantry, and a first chuck structure, a second chuck structure, and a third chuck structure slidably arranged on the side-mounted bed in sequence from front to back. The laser cutting assembly includes an X-axis slide table slidably arranged on the gantry, an X-axis driving mechanism for driving the X-axis slide table to move along the X-axis direction, a Z-axis slide table slidably arranged on the X-axis slide table, a Z-axis driving mechanism for driving the Z-axis slide table to move along the Z-axis direction, an A-axis turntable arranged at the lower end of the Z-axis slide table, and a laser cutting head mounted on the A-axis turntable. At least one exhaust dust port adjacent to the laser cutting head is arranged on the second sub-frame. A plurality of mounting side seats are arranged beside the first sub-frame, and a centering follow-up mechanism is arranged on the mounting side seats for clamping the pipe to make the pipe centered.

[0007] As a further improvement of the above technical solution, both the first sub-frame and the second sub-frame include a group of horizontal pipes stacked and fixed by a plurality of horizontal pipes, and a reinforcing frame arranged behind the group of horizontal pipes. Mounting sealing plates are arranged at the connection ends of the first sub-frame and the second sub-frame, and decorative sealing plates are arranged at the non-connection ends of the first sub-frame and the second sub-frame. The corresponding mounting sealing plates of the first sub-frame and the second sub-frame are connected by bolts.

[0008] As a further improvement of the above technical solution, a first Y-axis guide rail and a Y-axis rack are provided on the top surface of the side-mounted bed body, a second Y-axis guide rail is provided on one side surface of the side-mounted bed body, an X-axis rack and an X-axis guide rail are provided on the top beam of the gantry, the X-axis slide table is slidably connected to the X-axis guide rail through an X-axis slider, the X-axis driving mechanism includes an X-axis driving motor arranged on the X-axis slide table, and an X-axis gear meshing and driving with the X-axis rack is arranged at the output end of the X-axis driving motor.

[0009] As a further improvement of the above technical solution, a Z-axis guide rail is provided on the Z-axis slide table, the X-axis slide table is slidably connected to the Z-axis guide rail through a Z-axis slider, the Z-axis driving mechanism includes a Z-axis driving motor, a Z-axis lead screw and a Z-axis nut seat, the Z-axis driving motor is arranged at the top of the Z-axis slide table and its output end is arranged downward and is in transmission connection with the Z-axis lead screw, the Z-axis nut seat is threadedly connected to the Z-axis lead screw and the Z-axis nut seat is fixedly connected to the X-axis slide seat.

[0010] As a further improvement of the above technical solution, the reinforcing frame includes a reinforcing upper cross beam, a reinforcing lower cross beam arranged below the reinforcing upper cross beam, and a plurality of connecting vertical beams connecting the reinforcing upper cross beam and the reinforcing lower cross beam. A wire routing cutout is formed at the bottom of the connecting vertical beam near the cross tube group.

[0011] As a further improvement of the above technical solution, the air extraction and dust removal port is formed through the side surface of the cross tube group and the air extraction and dust removal port is a long through hole. An inner sealing plate for blocking communication with the inside of the cross tube is provided at the air extraction and dust removal port.

[0012] As a further improvement of the above technical solution, the centering follow-up mechanism includes a fixed vertical plate fixed on the installation side seat, a lifting slide plate movably arranged up and down on the fixed vertical plate, a lifting driving mechanism for driving the lifting slide plate to move up and down, and a pair of clamping and positioning mechanisms arranged on the lifting slide plate. The pair of clamping and positioning mechanisms are used for clamping the pipe to a set position to achieve positioning. Two supports are arranged at the top of the lifting slide plate, and the two supports jointly support a horizontally extending and rotatable support roller.

[0013] As a further improvement of the above technical solution, the pair of clamping and positioning mechanisms includes a first guide rail horizontally extending and arranged on the lifting slide plate, two L-shaped clamping rods arranged on the first guide rail through first sliders, and a clamping rod driving mechanism for driving the two L-shaped clamping rods to approach or separate from each other.

[0014] As a further improvement of the above technical solution, the clamping rod driving mechanism includes a cylinder bracket disposed on the lifting slide plate, a driving cylinder vertically arranged upward on the cylinder bracket, a traction block provided at the end of the piston rod of the driving cylinder, a second guide rail vertically extending on the lifting slide plate, and the traction block is slidably connected to the second guide rail through a second slider. The two clamping plates are respectively connected to the traction block through L-shaped clamping rods.

[0015] As a further improvement of the above technical solution, the lifting driving mechanism includes two third guide rails vertically extending and symmetrically arranged on the fixed vertical plate, a first rack fixedly arranged on the fixed vertical plate and vertically extending, a lifting driving motor installed on the lifting slide plate, and a first gear sleeved on the main shaft of the lifting driving motor; the first rack is in meshing transmission with the first gear, and the lifting slide plate is slidably connected to the third guide rail through a third slider.

[0016] The beneficial effects of the present utility model: Compared with the prior art, the three-chuck bevel pipe cutting machine provided by the present utility model can not only perform straight cutting on the pipe, but also perform bevel cutting, and realize short tail material cutting by virtue of the mobility of the first chuck structure, the second chuck structure, and the third chuck structure. In addition, by providing an air extraction and dust removal port adjacent to the laser cutting head, it can effectively suck the metal dust generated during the cutting process, significantly reduce the dust pollution in the workshop, and improve the working environment of workers. Description of the Drawings

[0017] Figure 1 is a three-dimensional Figure 1 .

[0018] Figure 2 is a three-dimensional Figure 2 .

[0019] Figure 3 is Figure 1 a partial enlarged view of area A in

[0020] Figure 4 is Figure 2 a partial enlarged view of area B in

[0021] Figure 5 is a three-dimensional Figure 1 of the side-mounted bed body.

[0022] Figure 6 is a three-dimensional Figure 2 of the side-mounted bed body.

[0023] Description of Main Component Symbols: 1 - Side - hanging Bed Body, 111 - First Sub - frame, 112 - Second Sub - frame, 121 - Exhaust Dust Extraction Port, 122 - Inner Sealing Plate, 123 - Installation Sealing Plate, 124 - Decorative Sealing Plate, 13 - Gantry, 14 - Horizontal Pipe Group, 15 - Reinforcement Frame, 151 - Reinforcement Upper Cross - beam, 152 - Reinforcement Lower Cross - beam, 153 - Connecting Vertical Beam, 154 - Wiring Notch, 16 - Installation Side Seat, 21 - First Y - axis Guide Rail, 22 - Y - axis Rack, 23 - Second Y - axis Guide Rail, 31 - X - axis Slide Table, 32 - X - axis Rack, 33 - X - axis Guide Rail, 34 - X - axis Driving Motor, 41 - Z - axis Slide Table, 42 - Z - axis Guide Rail, 43 - Z - axis Driving Motor, 45 - A - axis Rotary Table, 46 - Laser Cutting Head, 5 - Centering Follow - up Mechanism, 51 - Fixed Vertical Plate, 52 - Lifting Slide Plate, 53 - Support Bracket, 54 - Support Roller, 55 - First Guide Rail, 56 - First Slide Block, 57 - L - shaped Clamping Rod, 58 - Cylinder Bracket, 59 - Driving Cylinder, 61 - Traction Block, 62 - Second Guide Rail, 63 - Pulling Rod, 64 - Third Guide Rail, 65 - Third Slide Block, 66 - Lifting Driving Motor, 71 - First Chuck Structure, 72 - Second Chuck Structure, 73 - Third Chuck Structure. Detailed Implementation Manner

[0024] The present utility model provides a three - chuck bevel pipe cutting machine. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the following further describes the present utility model in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present utility model and are not used to limit the protection scope of the present utility model.

[0025] Please refer to Figures 1 - 3 , the present utility model provides a three - chuck bevel pipe cutting machine, including a side - hanging bed body 1 composed of a first sub - frame 111 and a second sub - frame 112 spliced together, a gantry 13 arranged on the second sub - frame 112, a laser cutting assembly arranged on the gantry 13, and a first chuck structure 71, a second chuck structure 72 and a third chuck structure 73 that are slidably arranged on the side - hanging bed body 1 in sequence from front to back. The laser cutting assembly includes an X - axis slide table 31 slidably arranged on the gantry 13, an X - axis driving mechanism for driving the X - axis slide table 31 to move along the X - axis direction, a Z - axis slide table 41 slidably arranged on the X - axis slide table 31, a Z - axis driving mechanism for driving the Z - axis slide table 41 to move along the Z - axis direction, an A - axis rotary table 45 arranged at the lower end of the Z - axis slide table 41, and a laser cutting head 46 installed on the A - axis rotary table 45. At least one exhaust dust extraction port 121 adjacent to the laser cutting head 46 is arranged on the second sub - frame 112. A plurality of installation side seats 16 are arranged beside the first sub - frame 111, and a centering follow - up mechanism 5 is arranged on the installation side seats 16. The centering follow - up mechanism 5 is used for clamping the pipe to make the pipe centered.

[0026] In practical applications, the pipes are transported to the centering and follow-up mechanism 5 by manual hoisting or automatic feeding. Then, the centering and follow-up mechanism 5 centers and positions the pipes and lifts the pipes to be coaxial with the first chuck structure 71, the second chuck structure 72, and the third chuck structure 73. The pipes will be clamped by the first chuck structure 71 and the second chuck structure 72, and the first chuck structure 71 will push the pipes forward towards the laser cutting assembly to achieve cutting feed. The cut pipe segments will be clamped by the third chuck structure 73 for discharging. Under the control of the A-axis turntable 45, the laser cutting head 46 rotates within the range of ±45° to change the cutting angle, enabling the laser cutting head 46 to not only perform straight cutting on the pipes but also perform bevel cutting on the pipes. And combined with the driving of the X-axis driving mechanism and the Z-axis driving mechanism, precise positioning and cutting of the laser cutting head 46 in the three-dimensional space are achieved. Since the second chuck structure 72 can move relative to the laser cutting assembly, when there is remaining tail material of the pipe, the A-axis turntable 45 controls the laser cutting head 46 to be vertically downward, reducing the distance between the second chuck structure 72 and the laser cutting assembly, and then straight cutting the remaining pipes, thereby reducing the amount of tail material.

[0027] Actually, the air extraction and dust removal port 121 works with the air extraction and dust removal mechanism, enabling the air extraction and dust removal port 121 to have the ability of negative pressure air extraction. During the cutting process, when the air extraction and dust removal mechanism is started, the air flow in the cutting area is sucked into the air extraction and dust removal port 121 under negative pressure, thereby sucking the metal dust generated during the laser cutting process, effectively reducing the diffusion of dust in the workshop, improving the working environment, and protecting the health of the operators.

[0028] In this embodiment, as shown in Figure 5 and Figure 6 shown, both the first sub-frame 111 and the second sub-frame 112 include a cross-tube group 14 formed by stacking and fixedly connecting multiple cross-tubes, and a reinforcing frame 15 arranged behind the cross-tube group 14. By setting like this, the bed body is designed with lightweight, adapts to the rapid manufacturing rhythm, and has good structural stability.

[0029] Specifically, as shown in Figure 5 and Figure 6 shown, an installation sealing plate 123 is provided at the connection end of the first sub-frame 111 and the second sub-frame 112, and a decorative sealing plate 124 is provided at the non-connection end of the first sub-frame 111 and the second sub-frame 112. The corresponding installation sealing plates 123 of the first sub-frame 111 and the second sub-frame 112 are connected by bolts. The installation surface of the installation sealing plate 123 is finely processed to improve the accuracy of the splicing of the first sub-frame 111 and the second sub-frame 112, and further ensure the straightness of the side-hung bed body 1.

[0030] Furthermore, as shown in Figure 5 and Figure 6As shown, the reinforcing frame 15 includes a reinforcing upper cross beam 151, a reinforcing lower cross beam 152 disposed below the reinforcing upper cross beam 151, and a number of connecting vertical beams 153 connecting the reinforcing upper cross beam 151 and the reinforcing lower cross beam 152. The reinforcing upper cross beam 151, the reinforcing lower cross beam 152 and the connecting vertical beams 153 together form a more stable frame structure, significantly enhancing the rigidity and anti-deformation ability of the entire side-mounted bed body 1.

[0031] The top surface of the reinforcing upper cross beam 151 can serve as the support surface for the Y-axis drag chain, and the reinforcing upper cross beam 151 supports the movement of the Y-axis drag chain. A wire routing cutout 154 is provided at the bottom of the connecting vertical beam 153 near the cross tube group 14. The design of the wire routing cutout 154 provides a convenient wire routing channel, standardizes the wire routing, is both beautiful and improves safety, and also simplifies the maintenance and repair process.

[0032] In the above, the cross tubes on the cross tube group 14, the reinforcing upper cross beam 151, the reinforcing lower cross beam 152, and the connecting vertical beam 153 are all made of rectangular steel tubes or square steel tubes, and the rectangular steel tubes or square steel tubes have sufficient structural strength and stiffness. Each component within the first sub-frame 111 and the second sub-frame 112 is fixed by welding, and the overall structural strength is good.

[0033] See Figure 1 As shown, the top surface of the side-mounted bed body 1 is provided with a first Y-axis guide rail 21 and a Y-axis rack 22, and a second Y-axis guide rail 23 is provided on one side surface of the side-mounted bed body. The first chuck structure 71 includes a first side-mounted plate, a first chuck body disposed on the first side-mounted plate, and a first Y-axis drive motor. A first Y-axis gear meshing with the Y-axis rack 22 is provided at the output end of the first Y-axis drive motor. The first side-mounted plate is slidably connected to the first Y-axis guide rail 21 and the second Y-axis guide rail 23 respectively through Y-axis sliders. Similarly, the second chuck structure 72 includes a second side-mounted plate, a second chuck body disposed on the second side-mounted plate, and a second Y-axis drive motor. A second Y-axis gear meshing with the Y-axis rack 22 is provided at the output end of the second Y-axis drive motor. The second side-mounted plate is slidably connected to the first Y-axis guide rail 21 and the second Y-axis guide rail 23 respectively through Y-axis sliders. Similarly, the third chuck structure 73 includes a third side-mounted plate, a third chuck body disposed on the third side-mounted plate, and a third Y-axis drive motor. A second Y-axis gear meshing with the Y-axis rack 22 is provided at the output end of the third Y-axis drive motor. The third side-mounted plate is slidably connected to the first Y-axis guide rail 21 and the second Y-axis guide rail 23 respectively through Y-axis sliders.

[0034] See Figure 3As shown, an X-axis rack 32 and an X-axis guide rail 33 are provided on the top beam of the gantry 13, the X-axis slide 31 is slidably connected to the X-axis guide rail 33 through an X-axis slider, and the X-axis driving mechanism includes an X-axis driving motor 34 arranged on the X-axis slide 31, and an X-axis gear meshing with the X-axis rack 32 is provided at the output end of the X-axis driving motor 34. When the X-axis driving motor 34 rotates, the X-axis gear is driven to rotate synchronously, and the X-axis slide 31 is driven to reciprocate along the direction of the X-axis under the guidance of the X-axis bevel rack.

[0035] For details, see Figure 3 As shown, the Z-axis slide 41 is provided with a Z-axis guide rail 42, the X-axis slide 31 is slidably connected to the Z-axis guide rail 42 through a Z-axis slider 44, and the Z-axis drive mechanism includes a Z-axis drive motor 43, a Z-axis lead screw and a Z-axis nut seat, the Z-axis drive motor 43 is arranged on the top of the Z-axis slide 41 and its output end is arranged downward to be transmission-connected with the Z-axis lead screw, the Z-axis nut seat is threadedly connected to the Z-axis lead screw and the Z-axis nut seat is fixedly connected to the X-axis slide. The Z-axis drive motor 43 rotates, driving the Z-axis lead screw to rotate, and since the Z-axis nut seat is fixed, the Z-axis drive motor 43, the Z-axis lead screw and the Z-axis slide 41 move up and down relative to the X-axis slide 31, which can drive the laser cutting head 46 to rise or fall.

[0036] In this embodiment, see Figure 3 As shown, the exhaust dust removal port 121 is opened through the side of the horizontal tube group 14 and is an elongated through hole. Compared with the circular or other shaped exhaust ports, the elongated through hole provides a larger exhaust contact area, which helps to enhance the suction capacity of the exhaust system and more effectively capture and collect the dust generated during the cutting process.

[0037] In order to make up for the exhaust and pressure relief defects of the hollow horizontal pipe, the exhaust and dust removal port is provided with an inner sealing plate 122 that is separated from the interior of the horizontal pipe. Figure 3 As shown, the inner sealing plate 122 ensures that the exhaust air flow is concentrated on the exhaust dust removal port, preventing the exhaust air flow from entering the interior of the horizontal pipe and causing air flow dispersion, thereby enhancing the efficiency of the exhaust system and more efficiently extracting the dust generated during the cutting process.

[0038] For details, see Figure 4 As shown, the centering follower mechanism 5 includes a fixed vertical plate 51 fixed on the mounting side seat 16, a lifting slide plate 52 movably arranged on the fixed vertical plate 51, a lifting drive mechanism for driving the lifting slide plate 52 to move up and down, and a clamping positioning mechanism arranged on the lifting slide plate 52, the clamping positioning mechanism is used to clamp the pipe to a set position to achieve positioning, and two supports 53 are provided on the top of the lifting slide plate 52, and the two supports 53 jointly support a laterally extending and rotatable support roller 54.

[0039] After the loading rack automatically transports the pipe to the support roller 54, the support roller 54 supports the pipe. The clamping and positioning mechanism first clamps the pipe to the middle of the support roller 54, and then the lifting drive mechanism lifts the pipe to a set height, making the pipe coaxial with the first chuck structure 71, the second chuck structure 72, and the third chuck structure 73, so that the first chuck structure 71 and the second chuck structure 72 can clamp the pipe. During the processing, the support roller 54 provides follow-up support for the pipe fitting. When the pipe needs to rotate or interfere with the movement of the first chuck structure, the lifting drive mechanism controls the components on the lifting slide plate 52 to descend for avoidance.

[0040] Specifically, the clamping and positioning mechanism includes a first guide rail 55 horizontally extending on the lifting slide plate 52, two L-shaped clamping rods 57 arranged on the first guide rail 55 through first sliders 56, and a clamping rod drive mechanism for driving the two L-shaped clamping rods 57 to approach or move away from each other. The structural design of the first guide rail 55 and the first slider 56 enables the two L-shaped clamping rods 57 to slide freely horizontally. After the pipe is placed on the support roller 54, the clamping rod drive mechanism drives the two L-shaped clamping rods 57 to approach each other, pushing and positioning the pipe to the middle of the support roller 54. This not only ensures the adaptability to pipes of different diameters but also allows precise adjustment of the distance between the L-shaped clamping rods 57 according to the pipe size, achieving stable and precise clamping of the pipe.

[0041] Further, the clamping rod drive mechanism includes a cylinder bracket 58 arranged on the lifting slide plate 52, a driving cylinder 59 vertically upwardly arranged on the cylinder bracket 58. The end of the piston rod of the driving cylinder 59 is provided with a traction block 61. The lifting slide plate 52 is provided with a second guide rail 62 extending vertically. The traction block 61 is slidably connected to the second guide rail 62 through a second slider. The two L-shaped clamping rods 57 are respectively connected to the traction block 61 through pull rods 63. When the piston rod of the driving cylinder 59 retracts, it pulls the traction block 61 to move downward, so that the pull rods 63 pull the two L-shaped clamping rods 57 to approach each other, thereby pushing the pipe to the middle of the support roller 54 and clamping the pipe. When the piston rod of the driving cylinder 59 extends, the pipe is released.

[0042] Further, the lifting drive mechanism includes two third guide rails 64 vertically extending and symmetrically arranged on the fixed vertical plate 51, a first rack fixedly arranged on the fixed vertical plate 51 and extending vertically, a lifting drive motor 66 installed on the lifting slide plate 52, and a first gear sleeved on the main shaft of the lifting drive motor 66. The first rack is in meshing transmission with the first gear. The lifting slide plate 52 is slidably connected to the third guide rail 64 through a third slider 65. By setting it like this, the height of the support roller 54 lifting the pipe can be accurately controlled, so as to ensure that the pipe is coaxial with the first chuck structure 71, the second chuck structure 72, and the third chuck structure 73, and realize follow-up support during the processing.

[0043] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0044] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection or a connection that can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution of the present utility model and its inventive concept, and all such changes or substitutions should fall within the protection scope of the present utility model.

Claims

1. Three-chuck beveling pipe cutting machine, characterized in that: The invention comprises a side-hanging bed formed by splicing a first sub-frame and a second sub-frame, a gantry frame arranged on the second sub-frame, a laser cutting assembly arranged on the gantry frame, and a first chuck structure, a second chuck structure and a third chuck structure slidably arranged on the side-hanging bed from front to back in sequence, the laser cutting assembly comprises an X-axis slide slidably arranged on the gantry frame, an X-axis driving mechanism for driving the X-axis slide to move along the X-axis direction, a Z-axis slide slidably arranged on the X-axis slide, a Z-axis driving mechanism for driving the Z-axis slide to move along the Z-axis direction, an A-axis turntable arranged at the lower end of the Z-axis slide, and a laser cutting head installed on the A-axis turntable, the second sub-frame is provided with at least one exhaust dust removal port adjacent to the laser cutting head, a plurality of mounting side seats are arranged on one side of the first sub-frame, the mounting side seats are provided with a centering follower mechanism, and the centering follower mechanism is used to clamp the pipe to center the pipe.

2. The three-chuck beveling pipe cutting machine according to claim 1, characterized in that: The first sub-frame and the second sub-frame both include a transverse tube group fixedly connected by stacking a plurality of transverse tubes, and a reinforcing frame arranged behind the transverse tube group. The connecting end of the first sub-frame and the second sub-frame is provided with a mounting cover plate, and the non-connecting end of the first sub-frame and the second sub-frame is provided with a decorative cover plate. The corresponding mounting cover plates of the first sub-frame and the second sub-frame are connected by bolts.

3. The three-chuck beveling pipe cutting machine according to claim 1, characterized in that: The top surface of the side-mounted bed is provided with a first Y-axis guide rail and a Y-axis rack, a side surface of the side-mounted bed is provided with a second Y-axis guide rail, the top beam of the gantry is provided with an X-axis rack and an X-axis guide rail, the X-axis slide is slidably connected to the X-axis guide rail via an X-axis slider, the X-axis drive mechanism includes an X-axis drive motor arranged on the X-axis slide, and the output end of the X-axis drive motor is provided with an X-axis gear meshing with the X-axis rack for transmission.

4. The three-chuck beveling pipe cutting machine according to claim 1, characterized in that: The Z-axis slide is provided with a Z-axis guide rail, the X-axis slide is slidably connected to the Z-axis guide rail through a Z-axis slider, the Z-axis drive mechanism includes a Z-axis drive motor, a Z-axis lead screw and a Z-axis nut seat, the Z-axis drive motor is arranged on the top of the Z-axis slide and its output end is arranged downward to be transmission-connected to the Z-axis lead screw, the Z-axis nut seat is threadedly connected to the Z-axis lead screw and the Z-axis nut seat is fixedly connected to the X-axis slide.

5. The three-chuck beveling pipe cutting machine according to claim 2, characterized in that: The reinforcement frame includes a reinforcement upper cross beam, a reinforcement lower cross beam arranged below the reinforcement upper cross beam, and a plurality of connecting vertical beams connecting the reinforcement upper cross beam and the reinforcement lower cross beam. The bottom of the connecting vertical beam is provided with a wiring notch near the transverse tube group.

6. The three-chuck beveling pipe cutting machine according to claim 2, characterized in that: The exhaust and dust removal port is opened through the side of the horizontal pipe group and is a long through hole. The exhaust and dust removal port is provided with an inner sealing plate that is separated from the inside of the horizontal pipe.

7. The three-chuck beveling pipe cutting machine according to claim 1, characterized in that: The centering follower mechanism includes a fixed vertical plate fixed on the mounting side seat, a lifting slide plate movably arranged on the fixed vertical plate, a lifting drive mechanism for driving the lifting slide plate to move up and down, and a clamping positioning mechanism arranged on the lifting slide plate, the clamping positioning mechanism is used to clamp the pipe to a set position for positioning, and two supports are arranged on the top of the lifting slide plate, and the two supports jointly support a laterally extending and rotatable support roller.

8. The three-chuck beveling pipe cutting machine according to claim 7, characterized in that: The clamping positioning mechanism comprises a first guide rail extending transversely and arranged on a lifting slide plate, two L-shaped clamping rods arranged on the first guide rail through a first sliding block, and a clamping rod driving mechanism for driving the two L-shaped clamping rods to move closer to or away from each other.

9. The three-chuck beveling pipe cutting machine according to claim 8, characterized in that: The clamp rod driving mechanism includes a cylinder bracket arranged on the lifting slide, a driving cylinder arranged vertically upward on the cylinder bracket, a traction block is provided at the end of the piston rod of the driving cylinder, a second guide rail extending vertically is provided on the lifting slide, the traction block is slidably connected to the second guide rail through a second slider, and two L-shaped clamp rods are respectively connected to the traction block through pull rods.

10. The three-chuck beveling pipe cutting machine according to claim 7, characterized in that: The lifting drive mechanism includes two third guide rails extending vertically and symmetrically arranged on the fixed vertical plate, a first rack fixed on the fixed vertical plate and extending vertically, a lifting drive motor installed on the lifting slide, and a first gear sleeved on the main shaft of the lifting drive motor; the first rack is meshed with the first gear for transmission, and the lifting slide is slidably connected to the third guide rail through a third slider.

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