Multi-section type laser cutting device

Abstract

The utility model discloses a multi-section type laser cutting device, and particularly relates to the technical field of laser cutting devices, the multi-section type laser cutting device comprises a cutting box, the top wall of the cutting box is fixedly provided with a plurality of first electric telescopic rods, the bottom ends of the first electric telescopic rods are jointly provided with a movable seat, the bottom surface of the movable seat is slidably connected with a threaded sleeve, and the threaded sleeve is provided with a plurality of second electric telescopic rods. The movable base drives the threaded sleeve to slide through a moving mechanism, a cutting head and an air blowing spray head are installed on the bottom face of the threaded sleeve, and a second electric telescopic rod is rotationally connected to the bottom face of the movable base. The cutting speed can be accurately adjusted according to different materials, meanwhile, auxiliary gas can be flexibly replaced when the different materials are cut, and the cutting precision, the surface quality and the cutting speed can be conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting devices, and more specifically, to a multi-stage laser cutting device. Background Art

[0002] Laser cutting is an advanced device that uses a high-energy laser beam to precisely cut materials. During operation, the laser cutting device focuses the laser beam onto a tiny point, instantly heating the material to its vaporization temperature and thus achieving the desired effect. This cutting method offers advantages such as high precision, high speed, non-contact operation, and a minimal heat-affected zone. It can cut a wide variety of materials, including metals, non-metals, and composite materials, and can achieve complex shapes. With its advanced technology and superior performance, laser cutting has become an indispensable component of modern industrial production.

[0003] Existing laser cutting cannot accurately adjust the laser cutting speed when cutting materials of different materials. For example, for materials with low melting points, such as some plastics and rubbers, if the laser cutting speed is too fast, it can easily cause the material to over-melt or even burn, resulting in uneven cutting edges and burrs, seriously affecting product quality. If the cutting speed is too slow, it will not only reduce production efficiency, but may also cause the material to deform and discolor due to the long laser action time, affecting its appearance and performance. At the same time, it is not possible to flexibly change the auxiliary gas according to the different materials. For example, when cutting metal materials such as stainless steel, nitrogen is usually used as the auxiliary gas because nitrogen can prevent the material from oxidizing and improve the smoothness of the cut surface. When cutting materials such as carbon steel, oxygen is a commonly used auxiliary gas because oxygen can chemically react with the material to increase the cutting speed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a multi-stage laser cutting device. The technical problem to be solved by the present invention is that the existing laser cutting cannot accurately adjust the laser cutting speed when cutting materials of different materials, and cannot flexibly replace the auxiliary gas according to the materials of different materials.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A multi-stage laser cutting device comprises a cutting box, a plurality of first electric telescopic rods are fixedly mounted on the top wall of the cutting box, a movable seat is commonly mounted on the bottom ends of the plurality of first electric telescopic rods, a threaded sleeve is slidably connected to the bottom surface of the movable seat, the threaded sleeve is driven to slide by the movable seat through a moving mechanism, a cutting head and an air blowing nozzle are respectively mounted on the bottom surface of the threaded sleeve, a second electric telescopic rod is rotatably connected to the bottom surface of the movable seat, and the second electric telescopic rod is square in configuration, and a first driving gear, a second driving gear and a second driving gear are respectively mounted on the extending ends of the second electric telescopic rod. The driving gear and the third driving gear, and the moving mechanism is driven by the first driving gear, the pitch circle diameters of the first driving gear, the second driving gear and the third driving gear are equal in length, and the tooth roots decrease successively, a ventilation cylinder is fixedly installed on the top surface of the cutting box, a bottom plate is fixedly installed in the ventilation cylinder, a plurality of partitions are fixedly installed on the top surface of the bottom plate, a plurality of exhaust holes are provided on the bottom plate, a ventilation mechanism is provided in the ventilation cylinder, an air pump is fixedly installed on the top wall of the cutting box, and the air pump is connected to the ventilation cylinder, and the air pump is connected to the blowing nozzle.

[0007] like Figure 1-4 As shown, the specific implementation method is: by setting a second electric telescopic rod, a first drive gear, a second drive gear, and a third drive gear, driving the second electric telescopic rod causes different gears to drive the moving mechanism to operate, thereby accurately changing the moving speed of the cutting head, so that it can be applied to materials of different materials. Through the use of the ventilation mechanism, different gases can be sucked into the blowing nozzle through the air pump, thereby flexibly changing the auxiliary gas, which is convenient for improving the cutting accuracy, surface quality and cutting speed.

[0008] In a preferred embodiment, the ventilation mechanism includes a baffle, and the baffle is rotatably connected in the ventilation cylinder. A connecting hole is provided on the baffle, and the diameter of the connecting hole is longer than the diameter length of each exhaust hole. A second motor is fixedly installed in the ventilation cylinder, and the output shaft of the second motor is connected to the baffle.

[0009] In a preferred embodiment, the moving mechanism includes an assembly seat, and the assembly seat is fixedly mounted on the bottom surface of the moving seat. A threaded rod is rotatably connected to the assembly seat, and the threaded rod is threadedly connected to the threaded sleeve. One end of the threaded rod passes through the assembly seat and is installed with a driven gear, and the driven gear is meshed with the first drive gear.

[0010] In a preferred embodiment, a sliding groove is provided in the assembly seat, and the threaded sleeve is slidably connected to the sliding groove.

[0011] In a preferred embodiment, the ventilation cylinder is divided into a plurality of cavities by a plurality of partitions, and each exhaust hole is connected to a cavity corresponding to a position.

[0012] In a preferred embodiment, a first motor is fixedly mounted on the bottom surface of the movable base, and an output shaft of the first motor is connected to the second electric telescopic rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model sets a second electric telescopic rod, a first drive gear, a second drive gear, a third drive gear, a driven gear, a threaded sleeve, a threaded rod and other devices, so that the drive gear meshing with the driven gear can be replaced by starting the second electric telescopic rod, and the tooth roots of the first drive gear, the second drive gear and the third drive gear are reduced in sequence, thereby accurately changing the rotation speed of the threaded rod, entering into the precise adjustment of the laser cutting speed, thereby achieving the purpose of segmented cutting.

[0015] 2. The utility model sets a baffle, an exhaust hole, a connecting hole, an air blowing nozzle and other devices, so that the connecting hole is connected to the exhaust hole at the corresponding position by rotating the baffle, so that the auxiliary gas can be flexibly changed by rotating the baffle, thereby facilitating the purpose of improving the cutting accuracy, surface quality and cutting speed.

[0016] To sum up, the utility model is simple to operate when in use, and the cutting speed can be adjusted in sections, so that the cutting speed can be accurately adjusted according to materials of different materials. At the same time, the auxiliary gas can be flexibly replaced when cutting materials of different materials, so as to improve the cutting accuracy, surface quality and cutting speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a multi-stage laser cutting device proposed in the present invention;

[0018] Figure 2 This is a schematic diagram of the moving mechanism structure of a multi-stage laser cutting device proposed in the present invention;

[0019] Figure 3 This is a schematic diagram of the installation structure of the second electric telescopic rod of a multi-stage laser cutting device proposed in the utility model;

[0020] Figure 4 This is a schematic cross-sectional view of the ventilation cylinder of a multi-stage laser cutting device proposed in the present invention.

[0021] In the figure: 1 cutting box, 2 moving base, 3 first electric telescopic rod, 4 assembly base, 5 air exchange cylinder, 6 slide groove, 7 threaded rod, 8 threaded sleeve, 9 cutting head, 10 air blowing nozzle, 11 driven gear, 12 first motor, 13 second electric telescopic rod, 14 first drive gear, 15 third drive gear, 16 second drive gear, 17 partition, 18 exhaust hole, 19 baffle, 20 connecting hole, 21 second motor, 22 air pump. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Reference Figure 1-4 A multi-stage laser cutting device includes a cutting box 1, a plurality of first electric telescopic rods 3 are fixedly installed on the top wall of the cutting box 1, a movable base 2 is commonly installed at the bottom ends of the plurality of first electric telescopic rods 3, the bottom surface of the movable base 2 is slidably connected with a threaded sleeve 8, the movable base 2 drives the threaded sleeve 8 to slide through the moving mechanism, and the bottom surfaces of the threaded sleeve 8 are respectively installed with a cutting head 9 and an air blowing nozzle 10, the bottom surface of the movable base 2 is rotatably connected with a second electric telescopic rod 13, and the second electric telescopic rod 13 is square in shape, and the extending ends of the second electric telescopic rod 13 are respectively installed with a first driving gear 14 and a second driving gear 15. The wheel 16 and the third drive gear 15, and the moving mechanism is driven by the first drive gear 14. The pitch circle diameters of the first drive gear 14, the second drive gear 16 and the third drive gear 15 are equal in length, and the tooth roots decrease successively. A ventilation cylinder 5 is fixedly installed on the top surface of the cutting box 1, and a bottom plate is fixedly installed in the ventilation cylinder 5. A plurality of partitions 17 are fixedly installed on the top surface of the bottom plate, and a plurality of exhaust holes 18 are provided on the bottom plate. A ventilation mechanism is provided in the ventilation cylinder 5, and an air pump 22 is fixedly installed on the top wall of the cutting box 1, and the air pump 22 is connected to the ventilation cylinder 5, and the air pump 22 is connected to the blowing nozzle 10.

[0024] It is worth noting that the ventilation cylinder 5 is divided into multiple cavities by multiple partitions 17, and the multiple cavities are connected to external equipment through connecting pipes, and each cavity is filled with different gases.

[0025] like Figure 1-4As shown, the specific implementation method is as follows: by setting a second electric telescopic rod 13, a first drive gear 14, a second drive gear 16, and a third drive gear 15, the second electric telescopic rod 13 is driven to drive the different gears to drive the moving mechanism to operate, thereby accurately changing the moving speed of the cutting head 9, so that it can be applied to materials of different materials. Through the use of the ventilation mechanism, different gases can be sucked into the blowing nozzle 10 through the air pump 22, thereby flexibly changing the auxiliary gas, thereby improving the cutting accuracy, surface quality and cutting speed.

[0026] The ventilation mechanism includes a baffle 19, and the baffle 19 is rotatably connected to the ventilation cylinder 5. A connecting hole 20 is provided on the baffle 19, and the diameter of the connecting hole 20 is longer than the diameter of each exhaust hole 18. A second motor 21 is fixedly installed in the ventilation cylinder 5, and the output shaft of the second motor 21 is connected to the baffle 19. It should be noted that when the connecting hole 20 does not correspond to the position of the exhaust hole 18, the gas in the exhaust hole 18 is blocked by the outside of the baffle 19 to prevent it from overflowing.

[0027] The moving mechanism includes an assembly seat 4, and the assembly seat 4 is fixedly mounted on the bottom surface of the moving seat 2. A threaded rod 7 is rotatably connected inside the assembly seat 4, and the threaded rod 7 is threadedly connected to the threaded sleeve 8. One end of the threaded rod 7 passes through the assembly seat 4 and is installed with a driven gear 11, and the driven gear 11 is engaged with the first drive gear 14.

[0028] A sliding groove 6 is provided in the assembly seat 4, and the threaded sleeve 8 is slidably connected to the sliding groove 6. The sliding groove 6 limits the threaded sleeve 8 so that it cannot rotate and can only slide linearly.

[0029] The ventilation cylinder 5 is divided into a plurality of cavities by a plurality of partitions 17 , and each exhaust hole 18 is connected to a cavity corresponding to the position.

[0030] A first motor 12 is fixedly mounted on the bottom surface of the movable base 2 , and an output shaft of the first motor 12 is connected to a second electric telescopic rod 13 .

[0031] When the utility model is used, the workpiece is first fixed on the bottom wall of the cutting box 1, and can be clamped and fixed by an external clamping device, and then the cutting head 9 and the first motor 12 are started, and laser cutting is performed by the cutting head 9. At the same time, the second electric telescopic rod 13 is driven to rotate by the first motor 12, so that the first driving gear 14 is rotated, and the threaded rod 7 is driven to rotate by the driven gear 11, so that the movement of the threaded sleeve 8 can be realized. At the same time, the forward and reverse rotation of the first motor 12 is realized to realize the reverse sliding of the threaded sleeve 8, so as to realize the cutting of the workpiece. When it is necessary to reduce the speed, the second electric telescopic rod 13 can be started to mesh the second driving gear 16 or the third driving gear 15 with the driven gear 11, and the tooth roots of the third driving gear 15 and the second driving gear 16 are reduced to slow down the rotation speed of the driven gear 11, thereby reducing the moving speed of the threaded sleeve 8, so as to facilitate segmented cutting according to materials of different materials.

[0032] At the same time, when cutting different materials, the baffle 19 can be rotated to connect the connecting hole 20 with the exhaust hole 18 at the corresponding position, so that the gas in the cavity can be extracted by the air pump 22 and discharged through the air blowing nozzle 10 to assist the cutting. The auxiliary gas can be flexibly changed by rotating the baffle 19, thereby facilitating the improvement of cutting accuracy, surface quality and cutting speed.

[0033] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-stage laser cutting device, comprising a cutting box (1), characterized in that: A plurality of first electric telescopic rods (3) are fixedly mounted on the top wall of the cutting box (1), and a movable seat (2) is commonly mounted on the bottom ends of the plurality of first electric telescopic rods (3). The bottom surface of the movable seat (2) is slidably connected to a threaded sleeve (8), and the movable seat (2) drives the threaded sleeve (8) to slide through a moving mechanism. A cutting head (9) and an air blowing nozzle (10) are respectively mounted on the bottom surface of the threaded sleeve (8). The bottom surface of the movable seat (2) is rotatably connected to a second electric telescopic rod (13), and the second electric telescopic rod (13) is square-shaped. The extending ends of the second electric telescopic rod (13) are respectively mounted with a first drive gear (14), a second drive gear (16) and a third drive gear (15), and the moving mechanism is driven by the first driving gear (14), the pitch circle diameters of the first driving gear (14), the second driving gear (16), and the third driving gear (15) are equal in length, and the tooth roots decrease in sequence, the top surface of the cutting box (1) is fixedly mounted with a ventilation cylinder (5), a bottom plate is fixedly mounted inside the ventilation cylinder (5), a plurality of partitions (17) are fixedly mounted on the top surface of the bottom plate, a plurality of exhaust holes (18) are opened on the bottom plate, a ventilation mechanism is provided inside the ventilation cylinder (5), an air pump (22) is fixedly mounted on the top wall of the cutting box (1), and the air pump (22) is connected to the ventilation cylinder (5), and the air pump (22) is connected to the air blowing nozzle (10).

2. The multi-stage laser cutting device according to claim 1, characterized in that: The ventilation mechanism includes a baffle (19), and the baffle (19) is rotatably connected in the ventilation cylinder (5). A connecting hole (20) is provided on the baffle (19), and the diameter of the connecting hole (20) is longer than the diameter of each exhaust hole (18). A second motor (21) is fixedly installed in the ventilation cylinder (5), and the output shaft of the second motor (21) is connected to the baffle (19).

3. The multi-stage laser cutting device according to claim 2, characterized in that: The moving mechanism comprises an assembly seat (4), and the assembly seat (4) is fixedly mounted on the bottom surface of the moving seat (2); a threaded rod (7) is rotatably connected in the assembly seat (4), and the threaded rod (7) is threadedly connected to a threaded sleeve (8); one end of the threaded rod (7) passes through the assembly seat (4) and is mounted with a driven gear (11), and the driven gear (11) is meshed with a first driving gear (14).

4. The multi-stage laser cutting device according to claim 3, characterized in that: A sliding groove (6) is provided in the assembly seat (4), and the threaded sleeve (8) is slidably connected to the sliding groove (6).

5. The multi-stage laser cutting device according to claim 4, characterized in that: The ventilation cylinder (5) is divided into a plurality of cavities by a plurality of partitions (17), and each exhaust hole (18) is connected to a cavity corresponding to the position.

6. The multi-stage laser cutting device according to claim 5, characterized in that: A first motor (12) is fixedly mounted on the bottom surface of the movable seat (2), and an output shaft of the first motor (12) is connected to a second electric telescopic rod (13).

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