Large-pipe-diameter heavy-load laser pipe cutting machine

Abstract

A large-pipe-diameter heavy-load laser pipe cutting machine comprises a pipe cutting machine tool, a movable chuck, a laser cutting device, a feeding mechanism and a feeding moving mechanism. A feeding area and a discharging area are arranged on one side of the pipe cutting machine tool. The feeding area and the discharging area are located at the front end and the rear end of the laser cutting device correspondingly. The feeding moving mechanism comprises a feeding moving rail base, a feeding moving table and a centering limiting device. The centering limiting device is used for centering, clamping and limiting the pipe to the middle of the feeding movable table. The feeding area and the discharging area are symmetrically arranged at the front end and the rear end of the cutting station, a forward feeding mechanism of the movable chuck is combined, a closed-loop automatic production line of feeding, centered positioning, pipe clamping, cutting and discharging is formed, the batch machining takt is remarkably improved, and the manual carrying strength is reduced. The multiple sets of independent feeding / discharging mechanisms support parallel operation, and production tasks of different pipe diameters and lengths can be flexibly adapted.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting equipment, and in particular to a large-diameter, heavy-load laser pipe cutting machine. Background Art

[0002] Laser cutting technology, with its significant advantages such as high precision, high efficiency, non-contact processing, and excellent flexibility, has become a core process for cutting and engraving metal and non-metal materials in modern manufacturing. As a key branch and application of this technology, laser tube cutting machines are specifically designed for cutting to length, drilling holes, and processing complex contours in various types of tubes (including round, square, and special-shaped tubes). To achieve high-efficiency, automated, and batch production of tubes, laser tube cutting machines require loading and unloading equipment capable of continuous, automatic feeding to ensure continuous and consistent production.

[0003] Especially when processing heavy-duty pipes with large diameters, long spans, and high weights, higher requirements are placed on the supporting equipment. To accommodate the size and weight of these pipes, laser pipe cutting machines typically require a long conveyor base to provide sufficient support and transmission distance for automated loading and unloading. Furthermore, during the loading process, heavy-duty, long-span pipes are prone to deflection or displacement, making it difficult for the chuck to hold the pipe as designed. In these situations, traditional light-duty or general-purpose loading equipment often struggles. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a large-diameter, heavy-load laser pipe cutting machine.

[0005] An embodiment of the present invention solves the technical problem by adopting a technical solution: a large-diameter heavy-load laser pipe cutting machine, comprising: a pipe cutting machine tool, a movable chuck, a laser cutting device, a loading mechanism and a loading moving mechanism; a unloading mechanism and a unloading moving mechanism; The pipe cutting machine has a long base structure; the movable chuck is movably arranged on the pipe cutting machine for clamping the pipe material and conveying it forward; the laser cutting device is used to cut the pipe material; a loading area and a unloading area are provided on one side of the pipe cutting machine; the loading area and the unloading area are respectively located at the front end and the rear end of the laser cutting device; The loading area is provided with a plurality of loading mechanisms and loading moving mechanisms; the loading moving mechanism is provided between the loading mechanism and the pipe cutting machine and is used to move the pipe material from the loading mechanism to the pipe cutting machine; the loading mechanism is used to transport the pipe material from the rear end to the front end of the loading moving mechanism; The unloading area is provided with a plurality of unloading mechanisms and unloading moving mechanisms; the unloading moving mechanism is provided between the unloading mechanism and the pipe cutting machine, and is used to move the cut pipe material from the pipe cutting machine to the unloading mechanism; The feeding moving mechanism includes a feeding moving rail base, a feeding moving movable platform and a centering limit device; the feeding moving rail base extends from the feeding mechanism to the pipe cutting machine; the feeding moving movable platform can move along the front and rear directions of the feeding moving rail base; the centering limit device is used to clamp the pipe material in the center and limit it to the middle of the feeding moving movable platform.

[0006] In some embodiments, the loading mechanism includes a loading rack, a loading transverse tube, a loading transmission assembly and a loading support plate; the loading transverse tube is mounted above the loading rack; the loading transverse tube extends toward the side of the pipe cutting machine; the loading transmission assembly includes a loading synchronous wheel arranged at the front and rear ends of the loading transverse tube and a loading synchronous conveying member sleeved outside the loading synchronous wheel, and the loading support plates are arranged at intervals on the outer periphery of the loading synchronous conveying member; the loading support plate is used to engage and support the pipe material; the loading synchronous wheel can make the loading support plate move with the rotational feeding of the loading synchronous conveying member, and deliver the pipe material from the rear end of the loading transverse tube to the loading moving mechanism at the front end of the loading transverse tube; The unloading mechanism includes an unloading rack, an unloading transverse tube, an unloading transmission assembly and an unloading platform; the unloading transverse tube is mounted above the unloading rack; the unloading transverse tube is extended laterally toward the pipe cutting machine; the unloading transmission assembly includes unloading synchronous wheels arranged at the front and rear ends of the unloading transverse tube and an unloading synchronous transmission member sleeved outside the unloading synchronous wheel; the unloading platform is located at the end of the unloading transverse tube away from the pipe cutting machine; the unloading synchronous wheel can make the unloading synchronous transmission member rotate in a rotary feeding manner, and deliver the pipe material from the front end of the unloading transverse tube to the rear end of the unloading transverse tube and stack it on the unloading platform.

[0007] In some embodiments, the loading synchronous conveyor is a synchronous chain or a synchronous belt; the unloading synchronous conveyor is a synchronous belt.

[0008] In some embodiments, a synchronous support plate is provided above the feeding transverse tube; the feeding synchronous conveyor located on the upper side of the feeding transverse tube can be set above the synchronous support plate; A synchronous support plate is provided above the blanking transverse tube; the blanking synchronous conveying member located on the upper side of the blanking transverse tube can be arranged above the synchronous support plate.

[0009] In some embodiments, the loading pallet includes a connecting bottom plate portion and supporting side wall portions arranged on both sides of the connecting bottom plate portion, and the supporting side wall portions are provided with a "V"-shaped supporting groove; the supporting groove is used to clamp and support the pipe material; the connecting bottom plate portion and the supporting side wall portions on both sides are formed as an integral sheet metal.

[0010] In some embodiments, the unloading platform includes an "L"-shaped stopper disposed at the end of the unloading horizontal tube.

[0011] In some embodiments, a coupling and a coupling tube are provided between two adjacent feeding mechanisms, so as to enable the feeding synchronization wheels of the plurality of feeding mechanisms to rotate synchronously; A coupling and a coupling tube are provided between two adjacent blanking mechanisms, so as to enable the blanking synchronous wheels of the plurality of blanking mechanisms to rotate synchronously.

[0012] In some embodiments, the centering limit device includes a centering workbench, a centering clamping roller, a centering movable block and a centering drive motor; the centering workbench is installed on the loading movable platform; the centering clamping roller is vertically arranged on the centering movable block, and there are two centering movable blocks, which are located at opposite ends of the centering workbench; the centering drive motor can move the two centering movable blocks and the centering clamping roller toward the middle of the centering workbench to clamp the pipe material and limit it to the middle of the centering workbench.

[0013] In some embodiments, the centering workbench is provided with a centering guide rail, and the centering movable block is slidably mounted on the centering guide rail; A vertically extending centering limit rail is provided in the middle of the centering workbench, and a centering push-pull block is slidably provided on the centering limit rail; the centering push-pull block is connected to the two centering movable blocks through connecting rods of equal length; the two ends of the connecting rod are respectively hingedly connected to the centering push-pull block box and the centering movable block; the centering drive motor can make the centering push-pull block move up and down along the centering limit rail, and make the two centering movable blocks move relative to or away from each other through two connecting rods.

[0014] In some embodiments, the loading movable platform is provided with a lifting support platform and a lifting working motor; the lifting support platform is slidably mounted on the loading movable platform through a guide rail structure, and the lifting working motor can move the lifting support platform up and down; the centering workbench is mounted on the lifting support platform; Rolling support rollers are provided above the lifting support platform and above the blanking movable platform, extending along the lateral direction of the pipe cutting machine.

[0015] Beneficial effects of the present invention: 1. Through the coordinated work of the loading mechanism (responsible for conveying the pipes from the rear end to the front end) and the loading movement mechanism (responsible for moving the pipes from the front end of the mechanism to the machine tool), the fully automated and continuous conveying of pipes from the storage area to the processing position is achieved; 2. The centering limiter on the loading mechanism actively and precisely clamps the pipe and limits it to the middle of the loading platform. This fundamentally eliminates the deflection and offset problems that can easily occur when heavy, long pipes are moved due to their own weight or inertia, ensuring that the front end of the pipe reaches the clamping area of ​​the pipe cutting machine in a precisely centered position. This greatly improves the reliability and accuracy of the mobile chuck's first-time clamping success and avoids clamping failures, material jams, or equipment damage caused by incorrect pipe positioning. 3. The unloading moving mechanism automatically removes the pipe material that has been cut on the pipe cutting machine and places it on the front end of the unloading horizontal pipe. Then, the unloading synchronous conveyor rotates in a rotary manner under the drive of the unloading synchronous wheel, and automatically transports the pipe material along the unloading horizontal pipe from the machine side (front end) to the end away from the machine tool (rear end) smoothly and reliably.

[0016] 4. The loading and unloading areas are symmetrically located at the front and rear ends of the cutting station. Combined with the forward feeding mechanism of the mobile chuck, this forms a closed-loop automated production line of "loading → centering → clamping → cutting → unloading." This significantly improves batch processing time and reduces manual handling. Multiple independent loading and unloading mechanisms support parallel operation, flexibly adapting to production tasks with different tube diameters and lengths.

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which: Figure 1 This is a schematic structural diagram of the large-diameter, heavy-load laser tube cutting machine of the present invention; Figure 2 for Figure 1 Top view of the medium and large diameter heavy-duty laser tube cutting machine; Figure 3 It is a structural schematic diagram of the feeding mechanism of the present invention; Figure 4 It is a cross-sectional view of the feeding mechanism of the present invention; Figure 5 This is a structural diagram of the feeding moving mechanism of the present invention after the protective shell is hidden; Figure 6 for Figure 5 Cross-sectional view of the loading and moving mechanism; Figure 7 It is a structural schematic diagram of the blanking area of ​​the present invention; Figure 8 It is a cross-sectional view of the blanking mechanism of the present invention.

[0019] Description of main component symbols: 100, pipe cutting machine; 110, loading area; 120, unloading area; 200, mobile chuck; 300, laser cutting device; 400, loading mechanism; 410, loading rack; 420, loading horizontal tube; 430, loading transmission assembly; 431, loading synchronous wheel; 432, loading synchronous transmission member; 440, loading support plate; 441, connecting bottom plate; 442, supporting side wall; 450, synchronous support plate; 460, motor bracket; 461, loading motor; 500, loading moving mechanism; 510, loading moving track base; 520, loading moving movable platform; 521, lifting support platform; 522, lifting working motor; 523, rolling support roller; 530, centering limit device; 531. Centering workbench; 5311. Centering guide rail; 5312. Centering limit rail; 532. Centering clamping roller; 533. Centering movable block; 534. Centering drive motor; 535. Centering push-pull block; 536. Connecting rod; 537. Centering lifting motor; 540. Loading and moving motor; 600. Unloading mechanism; 610. Unloading rack; 620. Unloading cross pipe; 630. Unloading transmission assembly; 631. Unloading synchronous wheel; 632. Unloading synchronous transmission member; 640. Unloading platform; 650. Unloading motor; 700. Unloading moving mechanism; 710. Unloading moving track base; 720. Unloading moving movable platform; 800. Coupling; 810. Coupling tube; 820. Longitudinal beam connecting tube. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0021] In the description of this invention, "above," "below," and "within" are understood to be exclusive of the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0022] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0023] In the present invention, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection; and internal communication between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of these terms in the present invention based on the specific content of the technical solution.

[0024] Example Reference Figures 1 to 8 The present invention proposes a large-diameter heavy-load laser pipe cutting machine, comprising: a pipe cutting machine tool 100, a movable chuck 200, a laser cutting device 300, a loading mechanism 400 and a loading moving mechanism 500; a unloading mechanism 600 and a unloading moving mechanism 700; The pipe cutting machine 100 has an elongated base structure. A movable chuck 200 is movably mounted on the pipe cutting machine 100 to clamp the pipe material and transport it forward. A laser cutting device 300 is used to cut the pipe material. A loading area 110 and a unloading area 120 are provided on one side of the pipe cutting machine 100. The loading area 110 and the unloading area 120 are located at the front and rear ends of the laser cutting device 300, respectively. The loading area 110 is provided with a plurality of loading mechanisms 400 and a loading moving mechanism 500. The loading moving mechanism 500 is provided between the loading mechanism 400 and the pipe cutting machine 100 and is used to move the pipe from the loading mechanism 400 to the pipe cutting machine 100. The loading mechanism 400 is used to transport the pipe from the rear end to the loading moving mechanism 500 at the front end. The unloading area 120 is provided with a plurality of unloading mechanisms 600 and unloading moving mechanisms 700; the unloading moving mechanism 700 is provided between the unloading mechanism 600 and the pipe cutting machine 100, and is used to move the cut pipe material from the pipe cutting machine 100 to the unloading mechanism 600; The loading moving mechanism 500 includes a loading moving rail base 510, a loading moving movable platform 520 and a centering limit device 530; the loading moving rail base 510 extends from the loading mechanism 400 to the pipe cutting machine 100; the loading moving movable platform 520 can move along the front and rear directions of the loading moving rail base 510; the centering limit device 530 is used to clamp the pipe material in the center and limit it to the middle of the loading moving movable platform 520.

[0025] In some embodiments, the loading mechanism 400 includes a loading frame 410, a loading transverse tube 420, a loading transmission assembly 430 and a loading support plate 440; the loading transverse tube 420 is mounted above the loading frame 410; the loading transverse tube 420 extends toward the side of the pipe cutting machine 100; the loading transmission assembly 430 includes a loading synchronous wheel 431 arranged at the front and rear ends of the loading transverse tube 420 and a loading synchronous transmission member 432 sleeved outside the loading synchronous wheel 431, and the loading support plate 440 is arranged at intervals on the outer periphery of the loading synchronous transmission member 432; the loading support plate 440 is used to engage and support the pipe material; the loading synchronous wheel 431 can make the loading support plate 440 move with the loading synchronous transmission member 432 in a rotary feeding manner, and deliver the pipe material from the rear end of the loading transverse tube 420 to the loading moving mechanism 500 at the front end of the loading transverse tube 420; The unloading mechanism 600 includes an unloading frame 610, an unloading transverse tube 620, an unloading transmission assembly 630 and an unloading platform 640; the unloading transverse tube 620 is mounted above the unloading frame 610; the unloading transverse tube 620 is extended laterally toward the pipe cutting machine 100; the unloading transmission assembly 630 includes an unloading synchronous wheel 631 arranged at the front and rear ends of the unloading transverse tube 620 and an unloading synchronous transmission member 632 sleeved on the unloading synchronous wheel 631; the unloading platform 640 is located at the end of the unloading transverse tube 620 away from the pipe cutting machine 100; the unloading synchronous wheel 631 can make the unloading synchronous transmission member 632 rotate in a rotary feeding manner, and send the pipe material from the front end of the unloading transverse tube 620 to the rear end of the unloading transverse tube 620 and stack it on the unloading platform 640.

[0026] Beneficial effects of the present invention: 1. The coordinated operation of the loading mechanism 400 (responsible for conveying the pipes from the rear end to the front end) and the loading and moving mechanism 500 (responsible for transferring the pipes from the front end of the mechanism to the machine tool) achieves fully automated and continuous conveying of pipes from the storage area to the processing location. 2. The centering limiter 530 of the loading mechanism 500 actively and precisely centers the pipe and limits it to the middle of the loading platform 520. This fundamentally eliminates the deflection and offset problems that can easily occur when heavy, long pipes are moved due to their own weight or inertia, ensuring that the front end of the pipe reaches the clamping area of ​​the pipe cutting machine 100 in a precisely centered position. This greatly improves the reliability and accuracy of the mobile chuck 200's first-time clamping success and avoids clamping failures, material jams, or equipment damage caused by misaligned pipe positions. 3. The unloading moving mechanism 700 automatically removes the cut pipe from the pipe cutting machine 100 and places it on the front end of the unloading transverse tube 620. Then, the unloading synchronous conveyor 632, driven by the unloading synchronous wheel 631, performs a rotary feeding rotation, and automatically transports the pipe along the unloading transverse tube 620 from the machine side (front end) to the end away from the machine (rear end) in a stable and reliable manner.

[0027] 4. The loading area 110 and unloading area 120 are symmetrically positioned at the front and rear ends of the cutting station. Combined with the forward feeding mechanism of the mobile chuck 200, this forms a closed-loop automated production line of "loading → centering → clamping → cutting → unloading." This significantly improves batch processing cycle time and reduces manual handling. Multiple independent loading / unloading mechanisms 600 support parallel operation, flexibly adapting to production tasks with varying tube diameters and lengths.

[0028] In some embodiments, the loading synchronous conveyor 432 is a synchronous chain or a synchronous belt; the chain has excellent tensile strength and load-bearing capacity, and is particularly suitable for conveying large-diameter, high-weight, heavy-duty pipes. It is not easy to stretch, deform, or break under heavy-load conditions, ensuring the reliability and service life of the equipment. The synchronous belt transmission has low noise and low vibration, and can provide a smoother and quieter operating environment. Easy maintenance and low cost: Compared with chains, synchronous belts usually do not require lubrication, are easier to maintain, and may have lower costs. The unloading synchronous conveyor 632 is a synchronous belt. The unloading synchronous conveyor 632 only needs to transport the pipe materials and stack them. It does not need to be matched with a pallet structure for a single feeding operation. The use of a synchronous belt can reduce bumps.

[0029] In some embodiments, a synchronous support plate 450 is positioned above the loading transverse tube 420; the loading synchronous conveyor 432 located on the upper side of the loading transverse tube 420 can be mounted above the synchronous support plate 450; a synchronous support plate 450 is positioned above the unloading transverse tube 620; the unloading synchronous conveyor 632 located on the upper side of the unloading transverse tube 620 can be mounted above the synchronous support plate 450. The synchronous support plate 450 directly supports the upper conveyor, effectively preventing problems such as increased friction, increased operating resistance, unstable transmission, and even jamming caused by sagging. This reduces friction and wear, and the support reduces ineffective friction between the conveyor and the air or other components, reducing wear and extending the service life of the conveyor and the unloading synchronous wheel 631.

[0030] In some embodiments, the loading pallet 440 includes a connecting bottom plate portion 441 and supporting side wall portions 442 provided on both sides of the connecting bottom plate portion 441, and the supporting side wall portions 442 are provided with a "V"-shaped support groove; the support groove is used to engage and support the pipe material; the connecting bottom plate portion 441 and the supporting side wall portions 442 on both sides are integrally formed of sheet metal. The "V"-shaped support groove structure can naturally adapt to different pipe diameters, using gravity to achieve a self-centering effect on the pipe, ensuring that the pipe is located in the center of the pallet. The grooves formed on the two side walls form a wrapping restriction for the pipe, which can effectively prevent the pipe from rolling, axial movement or accidental slipping even when the equipment is started or stopped or vibrating, greatly enhancing the transportation safety, especially for round pipes.

[0031] In some embodiments, the unloading platform 640 includes an L-shaped stopper disposed at the end of the unloading horizontal tube 620. The L-shaped stopper provides a blocking structure to prevent the pipe from escaping from the end of the unloading horizontal tube 620, while also providing a certain L-shaped corner space for stacking the pipes to facilitate subsequent packaging and transportation.

[0032] In this embodiment, the loading mechanism 400 further includes a loading motor 461 and a motor bracket 460. The motor bracket 460 is mounted on the loading frame 410 and is used to mount the loading motor 461. The loading motor 461 is used to rotate one of the loading synchronous wheels 431. The unloading mechanism 600 further includes a unloading motor 650 and a motor bracket 460. The motor bracket 460 is mounted on the unloading frame 610 and is used to mount the unloading motor 650. The unloading motor 650 is used to rotate one of the unloading synchronous wheels 631. The dedicated motor provides direct, reliable, and controllable power for the rotation of the loading synchronous wheels 431 and the unloading synchronous wheels 631, ensuring continuous rotational feeding.

[0033] In some embodiments, a coupling 800 and a coupling tube 810 are provided between two adjacent loading mechanisms 400 to enable the loading synchronization wheels 431 of multiple loading mechanisms 400 to rotate synchronously; a coupling 800 and a coupling tube 810 are provided between two adjacent unloading mechanisms 600 to enable the unloading synchronization wheels 631 of multiple unloading mechanisms 600 to rotate synchronously.

[0034] Coupling 800 / coupling tube 810 rigidly connects the drive shafts of multiple loading mechanisms 400 or unloading mechanisms 600, ensuring absolute synchronous rotation of all associated unloading synchronous wheels 631 or loading synchronous wheels 431. This eliminates speed and phase differences that can arise from the independent operation of multiple drive mechanisms, prevents uneven force on pipes at multiple support points, leading to deviation and even jamming, and ensures coordinated and stable transportation of long pipes or batches of pipes.

[0035] In this embodiment, to maintain consistency in the overall arrangement of the multiple loading mechanisms 400 and the multiple unloading mechanisms 600 and to enhance the strength of the overall loading rack 410, a longitudinal beam connecting tube 820 is provided between two adjacent loading mechanisms 400. Both ends of the longitudinal beam connecting tube 820 are secured to the loading racks 410 of the two adjacent loading mechanisms 400. Also, a longitudinal beam connecting tube 820 is provided between two adjacent unloading mechanisms 600. Both ends of the longitudinal beam connecting tube 820 are secured to the unloading racks 610 of the two adjacent unloading mechanisms 600.

[0036] In this embodiment, the centering limit device 530 includes a centering workbench 531, a centering roller 532, a centering movable block 533, and a centering drive motor 534. The centering workbench 531 is mounted on the loading movable platform 520. The centering roller 532 is vertically arranged on the centering movable block 533. There are two centering movable blocks 533, located at opposite ends of the centering workbench 531. The centering drive motor 534 can move the two centering movable blocks 533 and the centering roller 532 toward the center of the centering workbench 531 to clamp the pipe material to the center of the centering workbench 531. The centering roller 532, which uses a bidirectional synchronous drive, can automatically adapt to different pipe diameters. Through two-point symmetrical clamping, the center axis of the pipe is strictly aligned with the movable platform reference, achieving an adaptive centering clamping effect.

[0037] In some embodiments, the centering workbench 531 is provided with a centering guide rail 5311, and the centering movable block 533 is slidably installed on the centering guide rail 5311; the centering guide rail 5311 provides a low-friction linear path for the movable block, ensuring that the movement trajectory of the clamping roller is accurately controllable, avoiding clamping deviation caused by mechanical clearance.

[0038] Specifically, a vertically extending centering limit rail 5312 is provided in the middle of the centering workbench 531, and a centering push-pull block 535 is slidably provided on the centering limit rail 5312; the centering push-pull block 535 is connected to the two centering movable blocks 533 through equal-length connecting rods 536; the two ends of the connecting rod 536 are respectively hingedly connected to the centering push-pull block 535 and the centering movable block 533; the centering drive motor 534 can make the centering push-pull block 535 move up and down along the centering limit rail 5312, and make the two centering movable blocks 533 move relative to or opposite to each other through the two connecting rods 536. The equal-length connecting rod 536 + hinged structure strictly converts the up and down movement of the centering push-pull block 535 into the symmetrical displacement of the movable blocks on both sides, realizing the absolute synchronous opening and closing of the clamping rollers, and eliminating the skew of the pipe caused by asynchronous movement. The vertical movement of the push-pull block driven by a single motor can complete two-way clamping, simplify the transmission chain, save lateral space, and improve system reliability.

[0039] In some embodiments, the loading platform 520 is equipped with a lifting support platform 521 and a lifting motor 522. The lifting support platform 521 is slidably mounted on the loading platform 520 via a guide rail structure, and the lifting motor 522 can move the lifting support platform 521 up and down. The centering workbench 531 is mounted on the lifting support platform 521. The lifting support platform 521 and the lifting motor enable overall height adjustment of the lifting support platform 521, ensuring that the center height of the pipe is precisely aligned with the chuck position of the pipe cutting machine 100, eliminating docking deviations caused by height differences. This ensures that interference is avoided during pipe collection and transfer.

[0040] Specifically, a rolling support roller 523 is provided above the lifting support platform 521. The rolling support roller 523 reduces the friction resistance between the pipe and the support surface, facilitates the fine adjustment of the pipe positioning during the alignment process, and avoids scratching the pipe surface.

[0041] In this embodiment, the centering worktable 531 is equipped with a centering lift motor 537. The centering worktable 531 is slidably mounted on the lifting support platform 521 via a guide rail structure. The centering lift motor 537 enables the centering worktable 531 to be raised and lowered. The centering worktable 531 can be independently raised and lowered, allowing secondary adjustments based on the coarse adjustments made by the lifting support platform 521. When receiving a pipe from the loading mechanism 400, the centering worktable 531 and the centering roller 532 can be lowered to prevent interference between the centering device and the pipe. When the pipe needs to be centered later, the centering worktable 531 and the centering roller 532 can be raised again.

[0042] In this embodiment, a loading platform 520 is slidably mounted on a loading track base 510 via a guide rail structure. The loading mechanism 500 is equipped with a loading motor 540, which drives the loading platform 520 to move on the loading track base 510. The guide rail and motor drive the platform to move smoothly and at high speed along the track base, ensuring consistent delivery of the final destination.

[0043] In some embodiments, protective covers are provided on the loading movable platform 520 and the centering limiter 530. The protective covers isolate cutting dust, metal debris, and external impacts, protect the precision guide rails, motors, and transmission components, significantly extend the life of the equipment, and reduce maintenance costs.

[0044] In this embodiment, a plurality of feeding and moving mechanisms 500 are arranged at intervals along the extension direction of the pipe cutting machine 100. The multi-mechanism segmented support can significantly reduce the single point load and prevent the middle part of the pipe from sagging and deformation.

[0045] In this embodiment, the unloading mechanism 700 includes a unloading track base 710 and a unloading movable platform 720. The unloading track base 710 extends from the front end of the unloading cross tube 620 to the pipe cutting machine 100. The unloading movable platform 720 can move forward and backward along the unloading track base 710. The unloading track base 710 provides a stable and precisely guided movement path along which the unloading movable platform 720 can accurately transfer the pipe from the pipe cutting machine body to the front end of the unloading cross tube 620.

[0046] In this embodiment, to protect the pipe and reduce wear on the pipe surface during movement, rolling support rollers 523 are provided above the material unloading movable platform 720 and extend laterally from the pipe cutting machine 100. The rolling support rollers support the pipe at rolling points, preventing the pipe from being worn.

[0047] Preferably, in order to improve the stability of the material discharge movable platform 720 in supporting the material discharge pipe, the material discharge movable platform 720 is provided with two rolling support rollers 523 at intervals to provide rolling support at two points.

[0048] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A large diameter heavy-load laser pipe cutting machine, characterized in that: include: A pipe cutting machine (100), a movable chuck (200), a laser cutting device (300), a loading mechanism (400) and a loading moving mechanism (500); a unloading mechanism (600) and a unloading moving mechanism (700); The pipe cutting machine (100) has a long strip-shaped machine base structure; the movable chuck (200) is movably arranged on the pipe cutting machine (100) for clamping the pipe material and conveying it forward; the laser cutting device (300) is used for cutting the pipe material; a loading area (110) and a unloading area (120) are provided on one side of the pipe cutting machine (100); the loading area (110) and the unloading area (120) are respectively located at the front end and the rear end of the laser cutting device (300); The loading area (110) is provided with a plurality of loading mechanisms (400) and a loading moving mechanism (500); the loading moving mechanism (500) is provided between the loading mechanism (400) and the pipe cutting machine (100) and is used to move the pipe material from the loading mechanism (400) to the pipe cutting machine (100); the loading mechanism (400) is used to transport the pipe material from the rear end to the loading moving mechanism (500) at the front end; The unloading area (120) is provided with a plurality of unloading mechanisms (600) and unloading moving mechanisms (700); the unloading moving mechanisms (700) are provided between the unloading mechanisms (600) and the pipe cutting machine (100) and are used to move the cut pipe material from the pipe cutting machine (100) to the unloading mechanisms (600); The feeding moving mechanism (500) comprises a feeding moving track base (510), a feeding moving movable platform (520) and a centering limit device (530); the feeding moving track base (510) extends from the feeding mechanism (400) to the pipe cutting machine (100); the feeding moving movable platform (520) can move along the front-rear direction of the feeding moving track base (510); and the centering limit device (530) is used to clamp the pipe material in the center and limit it to the middle of the feeding moving movable platform (520).

2. The large diameter and heavy load laser pipe cutting machine according to claim 1 is characterized in that: The feeding mechanism (400) includes a feeding frame (410), a feeding transverse tube (420), a feeding transmission assembly (430) and a feeding support plate (440); the feeding transverse tube (420) is mounted above the feeding frame (410); the feeding transverse tube (420) is arranged to extend laterally toward the pipe cutting machine (100); the feeding transmission assembly (430) includes a feeding synchronous wheel (431) provided at the front and rear ends of the feeding transverse tube (420) and a feeding synchronous wheel (431) sleeved on the feeding synchronous wheel (431). A loading synchronous conveying member (432) outside the step wheel (431), the loading supporting plate (440) is arranged at intervals on the outer periphery of the loading synchronous conveying member (432); the loading supporting plate (440) is used to engage and support the pipe material; the loading synchronous wheel (431) can make the loading supporting plate (440) move along with the loading synchronous conveying member (432) in a rotary feeding manner, and feed the pipe material from the rear end of the loading transverse tube (420) to the front end of the loading transverse tube (420) to the loading moving mechanism (500); The unloading mechanism (600) includes an unloading frame (610), an unloading transverse pipe (620), an unloading transmission assembly (630) and an unloading platform (640); the unloading transverse pipe (620) is mounted above the unloading frame (610); the unloading transverse pipe (620) is arranged to extend laterally toward the pipe cutting machine (100); the unloading transmission assembly (630) includes unloading synchronous wheels (630) arranged at the front and rear ends of the unloading transverse pipe (620) 1) and a material unloading synchronous conveying member (632) sleeved on the outside of the material unloading synchronous wheel (631); the material unloading platform (640) is located at the end of the material unloading transverse tube (620) away from the end of the tube cutting machine (100); the material unloading synchronous wheel (631) can make the material unloading synchronous conveying member (632) rotate in a rotary feeding manner, and deliver the pipe material from the front end of the material unloading transverse tube (620) to the rear end of the material unloading transverse tube (620) and stack it on the material unloading platform (640).

3. The large diameter and heavy load laser pipe cutting machine according to claim 2 is characterized in that: The loading synchronous transmission member (432) is a synchronous chain or a synchronous belt; the unloading synchronous transmission member (632) is a synchronous belt.

4. The large diameter and heavy load laser pipe cutting machine according to claim 2 is characterized in that: A synchronous support plate (450) is provided above the feeding transverse tube (420); the feeding synchronous conveying member (432) located on the upper side of the feeding transverse tube (420) can be mounted above the synchronous support plate (450); A synchronous support plate (450) is provided above the material discharge transverse tube (620); the material discharge synchronous transmission member (632) located on the upper side of the material discharge transverse tube (620) can be mounted above the synchronous support plate (450).

5. The large diameter and heavy load laser pipe cutting machine according to claim 2 is characterized in that: The loading support plate (440) comprises a connecting bottom plate portion (441) and supporting side wall portions (442) arranged on both sides of the connecting bottom plate portion (441), wherein the supporting side wall portions (442) are provided with "V"-shaped supporting grooves; the supporting grooves are used for clamping and supporting pipe materials; the connecting bottom plate portion (441) and the supporting side wall portions (442) on both sides are integrally formed of sheet metal.

6. The large diameter and heavy load laser pipe cutting machine according to claim 2, characterized in that: The unloading platform (640) includes an "L"-shaped stopper, which is arranged at the end of the unloading transverse pipe (620).

7. The large diameter and heavy load laser pipe cutting machine according to claim 2, characterized in that: A coupling (800) and a coupling tube (810) are provided between two adjacent feeding mechanisms (400) to enable the feeding synchronous wheels (431) of the plurality of feeding mechanisms (400) to rotate synchronously; A coupling (800) and a coupling tube (810) are provided between two adjacent blanking mechanisms (600) to enable the blanking synchronous wheels (631) of the plurality of blanking mechanisms (600) to rotate synchronously.

8. The large diameter and heavy load laser pipe cutting machine according to claim 2, characterized in that: The centering limiting device (530) includes a centering workbench (531), a centering clamping roller (532), a centering movable block (533) and a centering drive motor (534); the centering workbench (531) is installed on the loading movable platform (520); the centering clamping roller (532) is vertically arranged on the centering movable block (533), and there are two centering movable blocks (533) located at opposite ends of the centering workbench (531); the centering drive motor (534) can move the two centering movable blocks (533) and the centering clamping roller (532) toward the middle of the centering workbench (531) to clamp the pipe material and limit it to the middle of the centering workbench (531).

9. The large diameter and heavy load laser pipe cutting machine according to claim 8, characterized in that: The centering workbench (531) is provided with a centering guide rail (5311), and the centering movable block (533) is slidably mounted on the centering guide rail (5311); A vertically extending centering limit rail (5312) is provided in the middle of the centering workbench (531), and a centering push-pull block (535) is slidably provided on the centering limit rail (5312); the centering push-pull block (535) is connected to the two centering movable blocks (533) through equal-length connecting rods (536); the two ends of the connecting rod (536) are respectively hingedly connected to the centering push-pull block (535) and the centering movable block (533); the centering drive motor (534) can make the centering push-pull block (535) move up and down along the centering limit rail (5312), and make the two centering movable blocks (533) move relative to or away from each other through the two connecting rods (536).

10. The large diameter and heavy load laser pipe cutting machine according to claim 9, characterized in that: The loading movable platform (520) is provided with a lifting support platform (521) and a lifting working motor (522); the lifting support platform (521) is slidably mounted on the loading movable platform (520) via a guide rail structure, and the lifting working motor (522) can move the lifting support platform (521) up and down; the centering workbench (531) is mounted on the lifting support platform (521); Rolling support rollers (523) are provided above the lifting support platform (521) and above the material removal movable platform (720) and extending along the side of the pipe cutting machine (100).

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