Heavy large-thickness laser cutting device

Abstract

The invention provides a heavy large-thickness laser cutting device, and relates to the technical field of laser cutting. The heavy-duty large-thickness laser cutting device comprises a gantry support, a rotating disc, an optical fiber trunking box, an angle turning device, a rolling directional reel, a balancer, a rolling disc, a rolling frame, a driving servo motor, a dustproof cover plate, a laser cutter, a heavy-duty large-thickness workpiece, a workpiece guide rail and a laser protection plate. According to the device, the controller controls and drives the servo motor to move, so that the rotating disc drives the equipment such as the optical fiber trunking box, the laser cutter, the dustproof cover plate and the laser protection plate on the rotating disc to rotate around the heavy large-thickness workpiece and can stay at any position, and then the servo motor arranged on the laser cutter is used for carrying out small-range position accurate fine adjustment; it is ensured that the laser focus accurately acts on the heavy large-thickness workpiece, the problem of machine tool vibration caused by rotation of the heavy large-thickness workpiece can be solved through the rotating mode of the laser cutter, and the cutting precision of the laser cutter is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting, and particularly to a heavy-duty and large-thickness laser cutting device. Background Art

[0002] Laser cutting is a high-precision machining technology that uses a high-power density laser beam to irradiate the surface of a material, causing it to quickly melt, vaporize, or reach the ignition point, and blowing away the molten slag with the aid of high-pressure auxiliary gas to achieve material separation. Its core principle is that the high-energy laser beam generated by the laser cutter forms a high-power density light spot after being focused by the optical system. When this light spot irradiates the surface of the workpiece, the material is quickly heated to the melting point or vaporization point, and the molten or vaporized material is carried away by the high-speed air flow to achieve high-precision cutting.

[0003] According to different processing requirements, laser cutting can be divided into four main process types, including melting cutting, vaporization cutting, oxidation melting cutting, and controlled fracture cutting. Melting cutting is mainly used for metal material processing. By blowing away the molten material with an inert gas (such as nitrogen or argon), oxidation of the material is avoided, and the cutting quality is improved; Vaporization cutting is suitable for easily vaporizable materials such as wood, plastics, and composite materials, which are directly vaporized under the action of high-energy laser without the need for auxiliary gas; Oxidation melting cutting, also known as flame cutting, is suitable for easily oxidizable materials such as carbon steel. Using oxygen as the auxiliary gas, an oxidation reaction occurs with the metal, releasing additional heat to accelerate the cutting process, and the oxide is blown away by the air flow; Controlled fracture cutting is mainly used for brittle materials such as glass and ceramics. By locally heating the material to generate controlled cracks, high-precision separation is achieved. Due to its advantages such as high precision, high efficiency, non-contact, and high degree of automation, laser cutting technology is widely used in many industrial fields.

[0004] For laser cutting of heavy-duty and large-thickness workpieces, a high-power fiber laser cutter is usually required to provide a higher beam energy density to improve the cutting ability; however, it is not convenient to rotate heavy-duty and large-thickness workpieces to cooperate with the laser cutter for cutting, which easily causes vibration of the machine tool and thus affects the cutting accuracy. Therefore, it is very necessary to invent a heavy-duty and large-thickness laser cutting device. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a heavy-duty and large-thickness laser cutting device to solve the problem that it is not convenient to rotate heavy-duty and large-thickness workpieces to cooperate with the laser cutter for cutting, which is likely to cause vibration of the machine tool and thus affect the cutting accuracy. A heavy-duty and large-thickness laser cutting device includes a gantry bracket, a rotating disk, a winding and guiding reel, and a winding rack. The gantry bracket is connected to the ground by bolts; the rotating disk is installed on the gantry bracket through a transmission mechanism; a fiber optic cable trough box and a laser cutter are installed on the rotating disk, and a fiber optic cable is arranged inside the fiber optic cable trough box; the winding rack is installed on the gantry bracket and is used to install a winding disk; the winding and guiding reel is installed at the inlet and outlet of the winding disk; a balancer is also installed on the winding rack, and the balancer is connected to the winding disk and is used to control the tension during the winding and unwinding process of the fiber optic cable. The transmission mechanism includes a corner changer, a driving servo motor, and a supporting transmission component of the driving servo motor. The corner changer is composed of a bevel gear system, and the input end of the corner changer is connected to the driving servo motor through a coupling. The output end of the corner changer is connected to the rotating disk, and the corner changer and the driving servo motor control the stepless rotation of the rotating disk through a controller.

[0006] Furthermore, the heavy-duty and large-thickness laser cutting device further includes a controller and an electric control cabinet. The electric control cabinet is connected to the mains through a power cord and is used to supply power to the whole device; the controller is connected to the electric control cabinet through wires respectively, and the controller is powered on to run for system control.

[0007] Furthermore, the laser cutter is connected to the fiber optic cable in the fiber optic cable trough box, and the fiber optic cable guides the laser beam into the laser light path inside the laser cutter; a servo motor is configured inside the laser cutter, and the servo motor is used to drive the precise movement of the laser cutter within a small range.

[0008] Furthermore, the rotating disk adopts a hollow structure, and a guide rail is installed at the lower part inside the rotating disk; a heavy-duty and large-thickness workpiece is arranged on the guide rail, and the guide rail is used to transport the heavy-duty and large-thickness workpiece; the gantry bracket is a supporting component of the whole device and is used to improve the stability of the whole device when loading and unloading the heavy-duty and large-thickness workpiece.

[0009] Furthermore, the back of the rotating disk is a gear structure, and the rotating disk is connected to the transmission mechanism through the gear structure; the fiber optic cable inside the winding disk passes through the inlet and outlet, and the fiber optic cable is connected to the cable trough box through the winding and guiding reel.

[0010] Furthermore, a distance sensor is configured inside the laser cutter, and the distance sensor is used to detect the distance between the laser nozzle of the laser cutter and the heavy large-thickness workpiece; a dual-light-path control module is also configured inside the laser cutter, and the dual-light-path control module is used to collect the refracted-reflected laser beam and preprocess the surface of the heavy large-thickness workpiece; a dust-proof cover plate and a laser protection plate are installed on the rotating disk, the dust-proof cover plate is located outside the laser cutter, the laser protection plate is located outside the laser cutter, and the laser protection plate is located below the dust-proof cover plate. The anti-collision block is installed on the lower side of the rotating disk to ensure that the rotating disk will not collide with the gantry support when rotating.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by controlling the movement of the driving servo motor through the controller, the rotating disk drives devices such as the optical fiber wire trough box, the laser cutter, the dust-proof cover plate, and the laser protection plate thereon to rotate around the heavy large-thickness workpiece and can stop at any position. Then, a small-range precise position fine-tuning is performed through the servo motor configured in the laser cutter to ensure that the laser focus accurately acts on the heavy large-thickness workpiece. The rotation mode of the laser cutter can reduce the problem of machine tool vibration caused by the rotation of the heavy large-thickness workpiece and improve the cutting accuracy of the laser cutter; a method of multi-angle cutting is realized by the coordinated action of multiple components such as the rotating disk, the laser cutter, and the winding disk; 2. In the present invention, a balancer is installed on the winding frame, and the balancer is connected to the winding disk. The balancer controls the tension during the winding and unwinding of the optical fiber wire to ensure that the optical fiber wire will not be entangled and folded, and ensure the smooth transmission of the laser beam; the winding directional reel is installed at the inlet and outlet of the winding disk to ensure the reliability of the movement during the winding of the optical fiber wire and improve the working efficiency of the laser cutter; 3. In the present invention, a distance sensor is configured inside the laser cutter, and the distance sensor is used to detect the distance between the laser nozzle of the laser cutter and the heavy large-thickness workpiece to ensure the focus position accuracy of the laser cutter; 4. In the present invention, by setting a transmission mechanism, the controller controls the driving servo motor to drive the angle changer to operate. The angle changer and the driving servo motor control the stepless rotation of the rotating disk through the controller, and different positions of the heavy large-thickness workpiece can be cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present invention.

[0013] In the figure: 1. Gantry bracket, 2. Rotating disk, 3. Fiber optic cable trough box, 4. Angle adjuster, 5. Winding directional reel, 6. Balancer, 7. Winding reel, 8. Winding rack, 9. Driving servo motor, 10. Dust cover plate, 11. Laser cutter, 12. Heavy and thick workpiece, 13. Workpiece guide rail, 14. Laser protection plate, 15. Anti-collision block. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with the accompanying drawings: Example: As attached Figure 1 Shown The present invention provides a heavy-duty large-thickness laser cutting device, comprising a gantry support 1, a rotating disk 2, a winding directional reel 5 and a winding frame 8, wherein the gantry support 1 is connected to the ground by bolts; the rotating disk 2 is installed on the gantry support 1 through a transmission mechanism; an optical fiber line slot box 3 and a laser cutter 11 are installed on the rotating disk 2, and an optical fiber line slot box 3 is provided with an optical fiber line inside; the winding frame 8 is installed on the gantry support 1, and the winding frame 8 is used to install a winding reel 7 to ensure the reliability of the movement of the optical fiber line during the winding process; the winding directional reel 5 is installed at the inlet and outlet of the winding reel 7; the winding frame 8 is also installed with a balancer 6, the balancer 6 is connected to the winding reel 7, and the balancer 6 is used to control the tension of the optical fiber line during the winding and releasing process to ensure that the optical fiber line will not be entangled and folded, thereby ensuring the smooth transmission of the laser beam; In this embodiment, the transmission mechanism includes an angle turner 4, a driving servo motor 9 and a matching transmission component of the driving servo motor 9. The angle turner 4 is composed of a bevel gear system, and the input end of the angle turner 4 is connected to the driving servo motor 9 through a coupling. The output end of the angle turner 4 is connected to the rotating disk 2, and the angle turner 4 and the driving servo motor 9 control the stepless rotation of the rotating disk 2 through a controller, so that cutting of different positions of heavy and thick workpieces 12 can be achieved.

[0015] In this embodiment, the heavy-duty and thick laser cutting device also includes a controller and an electric control cabinet. The electric control cabinet is connected to the mains through a power line, and the electric control cabinet is used to power the entire device; the controller is connected to the electric control cabinet through wires, and the controller is powered on to control the system. In this embodiment, the laser cutter 11 is connected to the optical fiber line in the optical fiber trough box 3, and the optical fiber line guides the laser beam to the laser light path in the laser cutter 11; the laser cutter 11 is equipped with a servo motor inside, and the servo motor is used to drive the laser cutter 11 to move precisely within a small range, thereby ensuring the cutting effect of the laser cutter 11 in all directions.

[0016] In this embodiment, the rotating disk 2 adopts a hollow structure, and a guide rail 13 is installed at the lower part inside the rotating disk 2; a heavy large-thickness workpiece 12 is arranged on the guide rail 13, and the guide rail 13 is used for transporting the heavy large-thickness workpiece 12; the gantry bracket 1 is a support component of the overall device, and the gantry bracket 1 is used to improve the stability of the overall device when loading and unloading the heavy large-thickness workpiece 12; the back surface of the rotating disk 2 is a gear structure, and the rotating disk 2 is connected to the transmission mechanism through the gear structure; the optical fiber wire in the winding disk 7 passes through the inlet and outlet, and the optical fiber wire is connected to the wire groove box 3 through the winding and orienting reel 5, ensuring that the laser beam can be guided to the laser cutter 11 to ensure the stable operation of the laser cutter 11.

[0017] In this embodiment, a distance sensor is configured inside the laser cutter 11, and the distance sensor is used to detect the distance between the laser nozzle of the laser cutter 11 and the heavy large-thickness workpiece 12; a double-light-path control module is also configured inside the laser cutter 11, and the double-light-path control module is used to realize the collection of the refracted-reflected laser beam and the surface pretreatment of the heavy large-thickness workpiece 12; a dust-proof cover plate 10 and a laser protection plate 14 are installed on the rotating disk 2, the dust-proof cover plate 10 is located outside the laser cutter 11, the laser protection plate 14 is located outside the laser cutter 11, and the laser protection plate 14 is located below the dust-proof cover plate 10, and the anti-collision block 15 is installed on the lower side of the rotating disk 2 to ensure that the rotating disk 2 will not collide with the gantry bracket 1 when rotating.

[0018] Working principle In the present invention, when the equipment is working, the electric control cabinet is connected to the commercial power supply through the power cord to supply power to the system, the controller is connected to the electric control cabinet through the wire, and the electrical components on the overall device are respectively connected to the electric control cabinet and the controller through the wire. The controller is powered on and runs to control the system. By controlling the movement of the driving servo motor 9 through the controller, the rotating disk 2 drives the equipment such as the optical fiber wire groove box 3, the laser cutter 11, the dust-proof cover plate 10, and the laser protection plate 14 on it to rotate around the workpiece 12 and can stay at any position. Then, a small-range precise position fine-tuning is performed through the servo motor also configured in the laser cutter 11 to ensure that the laser focus accurately acts on the workpiece 12. The rotation mode of the laser cutter can reduce the problem of machine tool vibration caused by the rotation of the heavy large-thickness workpiece 12 and improve the cutting accuracy. By the coordinated action of multiple components such as the rotating disk 2, the laser cutter 11, and the winding disk 7, a method for multi-angle cutting is realized; A balancer 6 is installed on the coiling rack 8. The balancer 6 is connected to the coiling disc 7. The balancer 6 controls the tension during the winding and unwinding of the optical fiber cable, ensuring that the optical fiber cable will not be entangled or folded, and ensuring the smooth transmission of the laser beam. The coiling directional disc 5 is installed at the inlet and outlet of the coiling disc 7 to ensure the reliability of the movement during the coiling of the optical fiber cable and improve the working efficiency of the laser cutter 11. A distance sensor is configured in the laser cutter 11. The distance sensor is used to detect the distance between the laser nozzle of the laser cutter 11 and the heavy large-thickness workpiece 12 to ensure the focus position accuracy of the laser cutter 11. By setting up a transmission mechanism, the controller controls the driving servo motor 9 to drive the angler 4 to operate. The angler 4 and the driving servo motor 9 control the stepless rotation of the rotating disc 2 through the controller, and different positions of the heavy large-thickness workpiece 12 can be cut.

[0019] Any technical solution using the technical solution of the present invention, or a technical solution designed by those skilled in the art inspired by the technical solution of the present invention and achieving the above technical effects, shall fall within the protection scope of the present invention.

Claims

1. A heavy-duty large-thickness laser cutting device, characterized in that: The invention comprises a gantry support (1), a rotating disk (2), a winding directional reel (5) and a winding frame (8), wherein the gantry support (1) is connected to the ground by bolts; the rotating disk (2) is mounted on the gantry support (1) by a transmission mechanism; an optical fiber trough box (3) and a laser cutter (11) are mounted on the rotating disk (2), and an optical fiber line is arranged inside the optical fiber trough box (3); the winding frame (8) is mounted on the gantry support (1), and the winding frame (8) is used to mount the winding reel (7); the winding directional reel (5) is mounted at the inlet and outlet of the winding reel (7); a balancer (6) is also mounted on the winding frame (8), and the balancer (6) is connected to the winding reel (7), and the balancer (6) is used to control the tension of the optical fiber line during the winding and releasing process; The transmission mechanism comprises an angler (4), a driving servo motor (9) and a matching transmission assembly of the driving servo motor (9); the angler (4) is composed of a bevel gear system, and the input end of the angler (4) is drivingly connected to the driving servo motor (9) via a coupling, the output end of the angler (4) is connected to the rotating disk (2), and the angler (4) and the driving servo motor (9) control the stepless rotation of the rotating disk (2) via a controller.

2. The heavy large-thickness laser cutting device according to claim 1, characterized in that: It also includes a controller and an electric control cabinet. The electric control cabinet is connected to the mains via a power line, and is used to power the entire device. The controller is connected to the electric control cabinet via wires, and the controller is powered on to control the system.

3. The heavy large-thickness laser cutting device according to claim 1, characterized in that: The laser cutter (11) is connected to an optical fiber line in an optical fiber trough box (3), and the optical fiber line guides a laser beam to a laser light path in the laser cutter (11); a servo motor is disposed inside the laser cutter (11), and the servo motor is used to drive the laser cutter (11) to move precisely within a small range.

4. The heavy large-thickness laser cutting device according to claim 1, characterized in that: The rotating disk (2) adopts a hollow structure, and a guide rail (13) is installed on the inner lower part of the rotating disk (2); a heavy and thick workpiece (12) is arranged on the guide rail (13), and the guide rail (13) is used to transport the heavy and thick workpiece (12).

5. The heavy-duty large-thickness laser cutting device according to claim 1, characterized in that: The gantry support (1) is a supporting component of the overall device, and the gantry support (1) is used to improve the stability of the overall device when loading and unloading heavy and thick workpieces (12).

6. The heavy large-thickness laser cutting device according to claim 1, characterized in that: The back side of the rotating disk (2) is a gear structure, and the rotating disk (2) is connected to the transmission mechanism via the gear structure.

7. The heavy large-thickness laser cutting device according to claim 1, characterized in that: The optical fiber line in the winding reel (7) passes through the inlet and outlet, and the optical fiber line is connected to the wire slot box (3) through the winding directional reel (5).

8. The heavy large-thickness laser cutting device according to claim 1, wherein: A distance sensor is arranged inside the laser cutter (11), and the distance sensor is used to detect the distance between the laser nozzle of the laser cutter (11) and the heavy and thick workpiece (12).

9. The heavy large-thickness laser cutting device according to claim 1, characterized in that: The laser cutter (11) is also provided with a dual light path control module, and the dual light path control module is used to collect the refracted-reflected laser beam and pre-process the surface of a heavy and thick workpiece (12).

10. The heavy-duty large-thickness laser cutting device according to claim 1, characterized in that: A dust-proof cover plate (10), a laser protection plate (14) and a collision prevention block (15) are installed on the rotating disk (2). The dust-proof cover plate (10) is located outside the laser cutter (11). The laser protection plate (14) is located outside the laser cutter (11) and is located below the dust-proof cover plate (10). The collision prevention block (15) is installed on the lower side of the rotating disk (2).

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