High-precision groove cutting pipe cutting machine

Abstract

The utility model relates to the field of laser cutting discloses a high -accuracy beveling pipe cutting machine, including the body, gantry, laser cutting assembly, front chuck structure, rear chuck structure, front drive mechanism and rear drive mechanism, be provided with first slide rail on the body, all be provided with first sliding block on front chuck structure and rear chuck structure, first baffle is provided with to front chuck structure, the second baffle of body fixed connection. Through setting up the first baffle of moving with it and setting up in front and back on the front chuck structure, the vast majority of spark produced when cutting is blocked, from the side barrier first slide rail and laser processing area, avoid the sputtering abrasion of first slide rail produced, influence the life of first slide rail. Through adding the second baffle in the position of the front end of body away from laser cutting assembly, to further strengthen the protection of first slide rail in laser processing area, to ensure the moving precision of front chuck structure and pipe cutting machine overall machining accuracy, prolong the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting, and in particular to a high-precision beveling pipe cutting machine. Background Technology

[0002] In a chuck laser tube cutting machine, the chuck moves back and forth along the length of the machine bed. To improve the smoothness and accuracy of the chuck's movement, slide rails are installed on the machine bed, and sliders that cooperate with the slide rails are installed on the chuck. The laser cutting head cuts the tube held in the chuck using a high-energy laser beam. During the cutting process, the cutting area is at a high temperature, accompanied by a large amount of metal dust and sparks. The slide rail is also in this harsh working environment. Sparks and dust generated by the laser cutting head fall onto the slide rail and into the gap between the slide rail and the slider, accelerating sliding friction and wear, and reducing the service life of the slider and slide rail. Ordinary bellows-style shrink dust covers are not effective in isolating the high-temperature sparks, and dust easily accumulates in the folds of the dust cover. After long-term use, dust accumulation can cause the dust cover to jam during expansion and contraction, which in turn affects the normal movement of the chuck. This does not fundamentally solve the problem of slide rail protection and lifespan in harsh environments.

[0003] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a high-precision beveling pipe cutting machine, which aims to solve the problem of the impact of external environment on the service life of slide rail slider.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-precision pipe beveling machine includes a bed, a gantry fixedly mounted on the bed and located at the front end of the bed, a laser cutting assembly mounted on the gantry and capable of reciprocating along the left-right and up-down directions of the gantry and performing beveling cuts on pipes, a front chuck structure and a rear chuck structure mounted on the bed, a front drive mechanism for driving the front chuck structure to reciprocate along the front-back direction of the bed, and a rear drive mechanism for driving the rear chuck structure to reciprocate along the front-back direction of the bed; a first slide rail extending along its front-back direction is provided on the bed, and a first slider slidably connected to the first slide rail is provided on both the front chuck structure and the rear chuck structure; a first blocking plate is provided on both the front and rear side walls of the front chuck structure, the first blocking plate being used to block the first slide rail and the laser processing area located below the laser cutting assembly; a second blocking plate fixedly connected to the side wall of the bed is also provided above the first slide rail located in the laser processing area.

[0007] The high-precision beveling and pipe cutting machine includes a second baffle plate comprising a mounting portion for fixed connection with the side wall of the bed, an inclined portion integrally formed with the end of the mounting portion, and an extension portion integrally formed with the end of the inclined portion; the inclined portion is inclined from top to bottom, and the lower end of the extension portion extends downward; the second baffle plate is located between the bed and the first baffle plate.

[0008] The high-precision beveling and pipe cutting machine includes a second slide rail extending along its front-rear direction on the upper surface of the bed, and a second slider that is slidably connected to the second slide rail on both the front drive mechanism and the rear drive mechanism; the first slide rail is located on the side wall of the bed facing the operator; both the first slide rail and the second slide rail are located away from the laser cutting assembly.

[0009] The high-precision beveling and pipe cutting machine includes a front chuck structure comprising a front mounting plate, a front chuck disposed on the side wall of the front mounting plate facing the operator, and a front rotary motor for rotating the jaws of the front chuck; a first slider is disposed on the side wall of the front mounting plate facing the machine bed; the rear chuck structure includes a rear mounting plate, a rear chuck disposed on the side wall of the rear mounting plate facing the operator, and a rear rotary motor for rotating the jaws of the rear chuck; the first slider is disposed on the side wall of the rear mounting plate facing the machine bed.

[0010] The high-precision beveling and pipe cutting machine includes a front drive mechanism comprising a front cross plate fixedly connected to the front side mounting plate, a front drive motor mounted on the front cross plate, a front drive gear driven through the output end of the front drive motor, and a drive rack arranged along the front-rear direction of the bed; the front drive gear and the drive rack mesh. The rear drive mechanism includes a rear cross plate fixedly connected to the rear side mounting plate, a rear drive motor mounted on the rear cross plate, and a rear drive gear driven through the output end of the rear drive motor; the rear drive gear and the drive rack mesh.

[0011] In the high-precision beveling pipe cutting machine, the rear horizontal plate is provided with an anti-collision seat on the side wall facing the front horizontal plate, and the anti-collision seat is provided with an anti-collision buffer block on the side wall facing the front horizontal plate.

[0012] In the high-precision beveling and pipe cutting machine, an oil collection groove is provided below the first slide rail, which is arranged along the front-rear direction of the bed, and an oil outlet is provided at the rear end of the oil collection groove.

[0013] The high-precision beveling pipe cutting machine includes an exhaust box located below the laser cutting assembly. The exhaust box has a dust removal hole and is connected to an exhaust pipe, which is connected to a negative pressure generator.

[0014] The high-precision beveling and pipe cutting machine has multiple follow-up support mechanisms fixedly connected to the bed at the rear of the gantry frame.

[0015] The high-precision beveling and pipe cutting machine, wherein a variable diameter wheel support mechanism fixed to the bed is provided between the front chuck structure and the follow-up support mechanism located at the foremost point.

[0016] Beneficial effects:

[0017] This invention provides a high-precision pipe beveling machine. A first baffle plate, movable and positioned at the front and rear of the front chuck structure, blocks most of the sparks generated during cutting. It also blocks the first slide rail from the laser processing area, preventing sparks from damaging the first slide rail and affecting its lifespan. A second baffle plate is added at the front end of the machine bed, away from the laser cutting components, to further enhance the protection of the first slide rail in the laser processing area. This ensures the moving accuracy of the front chuck structure and the overall processing accuracy of the pipe cutter, extending the machine's service life. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of a high-precision beveling and pipe cutting machine.

[0019] Figure 2 This is a schematic diagram of the structure of the first and second blocking plates.

[0020] Figure 3 This is a schematic diagram of the front chuck structure and the front drive mechanism.

[0021] Figure 4 Schematic diagram of the rear chuck structure and rear drive mechanism Figure 1 .

[0022] Figure 5 Schematic diagram of the rear chuck structure and rear drive mechanism Figure 2 .

[0023] Key component symbols: 1-Bed, 11-First slide rail, 12-First slider, 13-Second slide rail, 14-Second slider, 15-Drive rack, 16-Oil collection groove, 17-Oil outlet, 2-Gantry, 21-Laser cutting assembly, 3-Front chuck structure, 31-Front side plate, 32-Front chuck, 33-Front rotary motor, 4-Front drive mechanism, 41-Front cross plate, 42-Front drive motor, 43-Front drive gear, 5-Rear chuck Disc structure, 51-rear side hanging plate, 52-rear chuck, 53-rear rotating motor, 6-rear drive mechanism, 61-rear cross plate, 62-rear drive motor, 63-rear drive gear, 64-anti-collision seat, 65-anti-collision buffer block, 71-first blocking plate, 72-second blocking plate, 721-mounting part, 722-inclined part, 723-extension part, 81-exhaust box, 82-exhaust pipe, 91-follow-up support mechanism, 92-variable diameter wheel support mechanism. Detailed Implementation

[0024] This utility model provides a high-precision beveling and pipe cutting machine. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0025] Please see Figures 1-5 This utility model provides a high-precision beveling pipe cutting machine, including a bed 1, a gantry 2 fixedly mounted on the bed 1 and located at the front end of the bed 1, a laser cutting assembly 21 mounted on the gantry 2 and capable of reciprocating along the left-right and up-down directions of the gantry 2 and capable of beveling pipes, a front chuck structure 3 and a rear chuck structure 5 mounted on the bed 1, a front drive mechanism 4 for driving the front chuck structure 3 to reciprocate along the front-back direction of the bed 1, and a rear drive mechanism 6 for driving the rear chuck structure 5 to reciprocate along the front-back direction of the bed 1. The bed 1 is provided with a first slide rail 11 extending in the front-rear direction. The front chuck structure 3 and the rear chuck structure 5 are each provided with a first slider 12 that is slidably connected to the first slide rail 11. The front sidewall and the rear sidewall of the front chuck structure 3 are each provided with a first blocking plate 71, which is used to block the first slide rail 11 and the laser processing area located below the laser cutting assembly 21. Above the first slide rail 11 located in the laser processing area, a second blocking plate 72 is also provided that is fixedly connected to the sidewall of the bed 1.

[0026] This high-precision beveling and pipe cutting machine can cut pipes with a diagonal of ≤240mm and a length of ≤6500mm. The pipe is fed via a semi-automatic feeding rack. After the pipe is coaxial with the front chuck structure 3 and the rear chuck structure 5, it is clamped by these structures. The rear chuck structure 5 continuously feeds the pipe into the laser processing area. Once the pipe reaches the laser processing area, the laser cutting assembly 21 processes and cuts it. This assembly can be driven by a motor to rotate the laser head ±45°, thus meeting the beveling requirements of the pipe. Furthermore, the front chuck structure 3 can move back and forth in the laser cutting assembly 21, allowing the laser head to cut at positions both in front of and behind the chuck, achieving zero-tail cutting of the pipe and saving on production material costs.

[0027] Furthermore, during the process of the front chuck structure 3 clamping the tube and reciprocating along the front-back direction of the bed 1, the first baffle plate 71 moves along with the front chuck structure 3. The large-area first baffle plate 71 can block the first slide rail 11 from the laser processing area from the side, preventing sparks from splattering and wearing down the first slide rail 11, thus affecting its lifespan. In contrast, the second baffle plate 72 is farther away from the laser cutting assembly 21 and is less directly affected by sparks, so its area is smaller. Its main function is to block suspended or falling metal dust in the air, preventing dust from accumulating in the mating gap between the first slide rail 11 and the first slider 12. Furthermore, when the first blocking plate 71 moves with the front chuck structure 3 to the side of the second blocking plate 72, the two form an efficient and coordinated protection. The second blocking plate 72, fixed to the bed 1, forms a horizontal shield from above the first slide rail 11, while the first blocking plate 71, which moves with the front chuck structure 3, continuously protects the first slide rail 11 from the side. Together, they precisely enclose the first slide rail 11 in a relatively closed protective space. The above-mentioned dual protection structure can simultaneously isolate the high-temperature sparks and metal dust generated by laser cutting, prevent impurities from corroding the first slide rail 11 and the first slider 12, ensure their long-term stable sliding cooperation, and thus ensure the moving accuracy of the front chuck structure 3 and the overall processing accuracy of the pipe cutting machine, extending the service life of the equipment.

[0028] Please see Figure 2In some embodiments, the second baffle plate 72 includes a mounting portion 721 for fixed connection with the side wall of the bed 1, an inclined portion 722 integrally formed with the end of the mounting portion 721, and an extension portion 723 integrally formed with the end of the inclined portion 722; the inclined portion 722 is inclined from top to bottom, and the lower end of the extension portion 723 extends downward; the second baffle plate 72 is located between the bed 1 and the first baffle plate 71. The mounting part 721 serves as a connection base, ensuring that the second baffle plate 72 can be stably fixed to the side wall of the bed 1, providing support for the subsequent protective structure. The inclined part 722, which is set from top to bottom, can use the inclined angle to guide the dust and slag generated by laser cutting to slide down the inclined surface, avoiding them from accumulating directly above the first slide rail 11. At the same time, it can block the flying sparks to a certain extent, reducing the probability of sparks directly contacting the first slide rail 11. The downward-extending extension part 723 further expands the protection range, fills the protection gap below the inclined part 722, and effectively intercepts the dust that may drift from below the inclined part 722 to the first slide rail 11.

[0029] Please see Figures 2-5 In some embodiments, the upper surface of the bed 1 is provided with a second slide rail 13 extending in the front-rear direction, and both the front drive mechanism 4 and the rear drive mechanism 6 are provided with second sliders 14 that are slidably connected to the second slide rail 13; the first slide rail 11 is provided on the side wall of the bed 1 facing the operator; both the first slide rail 11 and the second slide rail 13 are located away from the laser cutting assembly 21. The fact that both the first slide rail 11 and the second slide rail 13 are located away from the laser cutting assembly 21 can minimize the direct erosion of the first slide rail 11 and the second slide rail 13 by sparks and dust generated during laser cutting, thus extending the service life of the guide rails; at the same time, the first slide rail 11 and the second slide rail 13 are located at different positions on the bed 1, providing stable movement guidance for the front chuck structure 3 and the rear chuck structure 5, ensuring the smoothness and coaxiality of their movement in the front-rear direction of the bed 1.

[0030] Please see Figure 2 and Figure 3 In some embodiments, the front chuck structure 3 includes a front mounting plate 31, a front chuck 32 disposed on the side wall of the front mounting plate 31 facing the operator, and a front rotary motor 33 for rotating the jaws of the front chuck 32; the first slider 12 is disposed on the side wall of the front mounting plate 31 facing the bed 1; please refer to Figure 4 and Figure 5The rear chuck structure 5 includes a rear side plate 51, a rear chuck 52 disposed on the side wall of the rear side plate 51 facing the operator, and a rear rotary motor 53 for driving the jaws of the rear chuck 52 to rotate; the first slider 12 is disposed on the side wall of the rear side plate 51 facing the bed 1. The front chuck structure 3 and the rear chuck structure 5 are generally identical in structure. The front side plate 31 is used to connect and adapt to the bed 1. The first slider 12 disposed on the side wall of the front side plate 31 allows it to slide along the first slide rail 11 of the bed 1. The front rotary motor 33 can drive the jaws of the front chuck 32 to rotate, which can both achieve stable clamping of the tube and drive the tube to rotate to cooperate with cutting. The rear chuck structure 5 is consistent with the principle of the front chuck structure 3. The two chuck structures cooperate and move along the first slide rail 11 to adjust the spacing under the drive mechanism. At the same time, the corresponding rotary motor drives the tube to rotate, providing a stable and adjustable tube processing state for the laser cutting assembly 21.

[0031] Please see Figure 3 In some embodiments, the front drive mechanism 4 includes a front cross plate 41 fixedly connected to the front side mounting plate 31, a front drive motor 42 disposed on the front cross plate 41, a front drive gear 43 pulsatorically connected to the output end of the front drive motor 42, and a drive rack 15 disposed along the front-rear direction of the bed 1; the front drive gear 43 and the drive rack 15 mesh; please refer to [link to relevant documentation]. Figure 5 The rear drive mechanism 6 includes a rear cross plate 61 fixedly connected to the rear side mounting plate 51, a rear drive motor 62 mounted on the rear cross plate 61, and a rear drive gear 63 driven by the output end of the rear drive motor 62; the rear drive gear 63 meshes with the drive rack 15. The front drive mechanism 4 and the rear drive mechanism 6 have the same structural composition, making their driving principles consistent and simplifying the complexity of the equipment. When the corresponding drive motor starts, it drives the corresponding drive gear to rotate, and the corresponding drive gear meshes with the drive rack 15. The rotational motion of the corresponding drive gear is then converted into linear motion along the direction of the drive rack 15, thereby driving the corresponding side mounting plate and the chuck structure connected to it to move back and forth along the first slide rail 11. Moreover, the two drive mechanisms share a single drive rack 15, making the structural composition of the drive mechanisms simpler and improving the coaxiality of the two chucks.

[0032] Please see Figure 4In some embodiments, the rear cross plate 61 is provided with an anti-collision seat 64 on its side wall facing the front cross plate 41, and the anti-collision seat 64 is provided with an anti-collision buffer block 65 on its side wall facing the front cross plate 41. Specifically, the bed 1 and the two chuck structures are all provided with photoelectric sensors such as sensors and induction plates to monitor the movement stroke and trajectory of the chuck structures in real time. However, when an operational error or program error causes the front and rear chuck structures to accidentally approach each other along the first slide rail 11 and may collide, the anti-collision buffer block 65 on the rear cross plate 61 will first contact the front cross plate 41. The physical buffering effect of the anti-collision buffer block 65 will offset the impact force of the collision. At the same time, the anti-collision seat 64 provides rigid support and extends the distance between the front chuck structure 3 and the rear chuck structure 5, limiting their further approach, thereby avoiding direct collision between the front and rear chuck structures, effectively protecting the equipment components from damage, and ensuring the safe operation of the pipe cutting machine.

[0033] Please see Figure 1 and Figure 4 In some embodiments, an oil collection groove 16 is provided below the first slide rail 11, arranged along the front-rear direction of the bed 1, and an oil outlet 17 is provided at the rear end of the oil collection groove 16. When the first slide rail 11 slides relative to the first slider 12, the lubricating oil on the first slide rail 11 will drip naturally due to gravity, and the oil collection groove 16 below can catch the dripping lubricating oil, preventing the lubricating oil from dripping randomly onto other parts of the bed 1 or the ground, avoiding contamination of the equipment and affecting the processing environment; at the same time, the collected lubricating oil can be discharged or recycled through the oil outlet 17 at the rear end of the oil collection groove 16, which not only realizes the orderly management of lubricating oil, but also provides convenience for possible subsequent lubricating oil recycling.

[0034] Please see Figures 1-3 In some embodiments, an exhaust box 81 is provided below the laser cutting assembly 21. The exhaust box 81 has dust removal holes and is connected to an exhaust pipe 82, which is connected to a negative pressure generator (not shown in the figure). In practical applications, the gantry frame 2 forms the skeleton of the protective box. The exhaust box 81 and the laser processing area are both located inside the protective box. When the negative pressure generator is started, a negative pressure environment is formed inside the exhaust box 81 through the exhaust pipe 82. At this time, the dust generated by laser cutting inside the protective box is sucked into the dust removal holes of the exhaust box 81 by the negative pressure and then transported to the outside of the protective box and the pipe cutter through the exhaust pipe 82. This achieves centralized collection and discharge of dust, preventing dust from accumulating inside the protective box and contaminating equipment components (such as the first slide rail 11 and the first slider 12) or affecting processing accuracy, while also improving the environmental hygiene of the equipment operation.

[0035] Please see Figure 1In some embodiments, a plurality of follow-up support mechanisms 91 fixedly connected to the bed 1 are provided at the rear of the gantry frame 2. In this embodiment, three follow-up support mechanisms 91 are arranged in the front and rear. When the tube is transported to the loading station by the semi-automatic loading rack, the follow-up support mechanism 91 lifts the tube to be coaxial with the front chuck structure 3 and the rear chuck structure 5, and then clamps it by the front chuck structure 3 and the rear chuck structure 5. Moreover, the follow-up support mechanism 91 can provide follow-up support for the tube (i.e., it rises or falls at any time following the change of the diagonal of the non-circular tube), avoiding the middle of the long tube from falling due to gravity, thereby improving the processing accuracy. This follow-up support mechanism 91 is prior art and mainly includes a lifting plate, a cylinder set on the lifting plate, a motor for driving the lifting plate to rise or fall, and two clamping blocks connected to the output end of the cylinder. The tube is clamped by the extension or contraction of the cylinder output end driving the two clamping blocks to move closer to each other.

[0036] Please see Figures 1-3 In some embodiments, a variable diameter wheel support mechanism 92, fixed to the bed 1, is further provided between the front chuck structure 3 and the foremost follower support mechanism 91. When cutting pipes with a diameter ≤120mm, the variable diameter wheel support mechanism 92, in conjunction with the pipe support, works with the front chuck structure 3 and the rear chuck structure 5 to achieve fine machining of small-diameter pipes. The variable diameter wheel support mechanism 92 is existing technology and mainly includes a support wheel and a cylinder for driving the support wheel up or down.

[0037] In summary, this invention, by providing a movable first baffle 71 on the front chuck structure 3, positioned front and rear, blocks most of the sparks generated during cutting and indirectly isolates the first slide rail 11 from the laser processing area, preventing sparks from splattering and damaging the first slide rail 11, thus affecting its lifespan. By adding a second baffle 72 at the front end of the bed 1, away from the laser cutting assembly 21, the protection of the first slide rail 11 in the laser processing area is further strengthened, thereby ensuring the moving accuracy of the front chuck structure 3 and the overall processing accuracy of the pipe cutting machine, and extending the equipment's service life.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A high-precision beveling and pipe cutting machine, characterized in that, The device includes a bed, a gantry fixedly mounted on the bed and located at the front end of the bed, a laser cutting assembly mounted on the gantry and capable of reciprocating along the left-right and up-down directions of the gantry and performing beveling cuts on pipes, a front chuck structure and a rear chuck structure mounted on the bed, a front drive mechanism for driving the front chuck structure to reciprocate along the front-back direction of the bed, and a rear drive mechanism for driving the rear chuck structure to reciprocate along the front-back direction of the bed; the bed is provided with a first slide rail extending along its front-back direction, and both the front and rear chuck structures are provided with a first slider that is slidably connected to the first slide rail; the front and rear side walls of the front chuck structure are each provided with a first blocking plate, which is used to block the first slide rail and the laser processing area located below the laser cutting assembly; a second blocking plate is also provided above the first slide rail located in the laser processing area and fixedly connected to the side wall of the bed.

2. The high-precision beveling and pipe cutting machine according to claim 1, characterized in that, The second baffle includes a mounting portion for fixed connection with the side wall of the bed, an inclined portion integrally formed with the end of the mounting portion, and an extension portion integrally formed with the end of the inclined portion; the inclined portion is inclined from top to bottom, and the lower end of the extension portion extends downward; the second baffle is located between the bed and the first baffle.

3. The high-precision beveling and pipe cutting machine according to claim 1, characterized in that, The upper surface of the bed is provided with a second slide rail extending in the front-rear direction. Both the front drive mechanism and the rear drive mechanism are provided with a second slider that is slidably connected to the second slide rail. The first slide rail is provided on the side wall of the bed facing the operator. Both the first slide rail and the second slide rail are located away from the laser cutting assembly.

4. The high-precision beveling and pipe cutting machine according to claim 3, characterized in that, The front chuck structure includes a front mounting plate, a front chuck disposed on the side wall of the front mounting plate facing the operator, and a front rotary motor for rotating the jaws of the front chuck; the first slider is disposed on the side wall of the front mounting plate facing the bed; the rear chuck structure includes a rear mounting plate, a rear chuck disposed on the side wall of the rear mounting plate facing the operator, and a rear rotary motor for rotating the jaws of the rear chuck; the first slider is disposed on the side wall of the rear mounting plate facing the bed.

5. The high-precision beveling and pipe cutting machine according to claim 4, characterized in that, The front drive mechanism includes a front cross plate fixedly connected to the front side plate, a front drive motor disposed on the front cross plate, a front drive gear driven through the output end of the front drive motor, and a drive rack disposed along the front-rear direction of the bed; the front drive gear and the drive rack mesh. The rear drive mechanism includes a rear cross plate fixedly connected to the rear side plate, a rear drive motor disposed on the rear cross plate, and a rear drive gear driven through the output end of the rear drive motor; the rear drive gear and the drive rack mesh.

6. The high-precision beveling and pipe cutting machine according to claim 5, characterized in that, The rear cross plate is provided with a collision protection seat on the side wall facing the front cross plate, and the collision protection seat is provided with a collision protection buffer block on the side wall facing the front cross plate.

7. The high-precision beveling and pipe cutting machine according to claim 1, characterized in that, Below the first slide rail is an oil collection groove arranged along the front-rear direction of the bed, and an oil outlet is provided at the rear end of the oil collection groove.

8. The high-precision beveling and pipe cutting machine according to claim 1, characterized in that, A ventilation box is provided below the laser cutting assembly. The ventilation box has a dust removal hole. The ventilation box is connected to a ventilation pipe, which is connected to a negative pressure generator.

9. The high-precision beveling and pipe cutting machine according to claim 1, characterized in that, Multiple follow-up support mechanisms that are fixedly connected to the bed are provided at the rear of the gantry frame.

10. The high-precision beveling and pipe cutting machine according to claim 9, characterized in that, A variable diameter wheel support mechanism, fixed to the bed, is also provided between the front chuck structure and the follow-up support mechanism located at the frontmost point.

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